CN110247505A - A kind of tail supporting rod motor gearbox - Google Patents

Abstract

The invention discloses a tail brace motor gearbox, aiming at providing a tail brace motor gearbox which is safe, reliable, simple in structure, convenient for production and long in service life. The housing of the inner gear part, the motor flange installed at one end of the housing, and the main reduction mechanism arranged in the inner cavity of the housing, the inner cavity of the housing is also provided with an inner gear seat arranged in parallel with the inner gear part, and the The inner gear holder is arranged between the inner tooth part and the motor flange; the end face of the inner gear holder facing the motor flange is provided with a connecting part inserted into the motor flange, and the connecting part is used as the inner gear holder and the motor flange. The first anti-rotation structure between the motor flanges; the housing is also provided with a fixing hole, and the fixing hole is fitted with a connecting piece inserted into the motor flange, and the connecting piece is used as the motor flange and The second anti-rotation structure between the housings, the present invention is applicable to the technical field of reduction mechanisms.

Description

A tail brace motor gearbox

technical field

The invention relates to the technical field of reduction mechanisms, and more specifically relates to a tail brace motor gearbox.

Background technique

The function of planetary gear structures is well known. In its middle position is a sun gear driven by an electric motor, which is connected to the planetary gears via a motor flange. The sun gear is able to transmit its motion to at least three rotating planetary gears to form a gear, and these planetary gears are located on the bearing pins of the planetary gear carrier. When the transmission is shifted in multiple stages, the last planetary gear carrier is fixedly connected with the driven shaft, which ensures the force transmission during driving. Externally, the planetary gears turn in a ring gear that is non-rotatably connected to the housing. Furthermore, the housing is connected with a drive flange on the output side.

At present, the planetary gear reduction mechanism on the market uses the inner tooth seat limit structure, usually uses some methods such as pins, bolts and teeth as the limit structure between the inner tooth seat and the motor flange, and its manufacturing cost is high. And it is not easy to install and disassemble, and the pins or bolts are easy to loosen and fall off during use, so that the device cannot be used normally; There is no measure to reduce friction between them. Under long-term use, the first-stage planetary gear set and the end cover are easy to wear, which reduces the service life of the device.

Contents of the invention

The technical problem to be solved by the present invention is to provide a tail brace motor gearbox that is safe, reliable, simple in structure, convenient for production and long in service life.

The technical solution of the present invention is to provide a tail brace motor gearbox with the following structure, including a housing provided with integrally formed internal teeth, a motor flange installed at one end of the housing, and a In the main deceleration mechanism in the inner cavity of the housing, the inner cavity of the housing is also provided with an inner tooth seat arranged in parallel with the inner tooth part, and the inner tooth seat is arranged between the inner tooth part and the motor flange;

The end face of the inner tooth seat facing the motor flange is provided with a connecting part inserted into the motor flange, and the connecting part serves as a first anti-rotation structure between the inner tooth seat and the motor flange;

The casing is also provided with a fixing hole, and a connecting piece inserted into the motor flange is fitted in the fixing hole, and the connecting piece serves as a second anti-rotation structure between the motor flange and the casing.

After adopting the above structure, compared with the prior art, a tail brace motor gearbox of the present invention has the following advantages: the inner tooth part cooperates with the motor flange through its connecting part facing the motor flange end face as its The torsion stopper, the connecting piece is used as the torsion stopper between the motor flange and the housing, and the motor flange puts the inner tooth seat between the inner gear part and the motor flange. Its structure design is simple and easy to manufacture. production, which reduces the production cost; at the same time, it has the characteristics of convenient disassembly and assembly, stable operation, safety and reliability.

As another improvement of the present invention, at least one set of connecting parts is provided on the inner tooth seat to cooperate with the motor flange. A set of connecting parts can limit the inner tooth seat in the circumferential direction, which is convenient for controlling the production cost.

As another improvement of the present invention, the number of the connecting parts is two groups, and the connecting parts of the two groups are radially and symmetrically arranged on the end surface of the inner gear seat, and the motor flange is provided with holes for connection. The positioning slot through which the part passes, and the motor flange at the end of the positioning slot is also provided with an end cover against the connecting part. Two sets of symmetrically arranged connecting parts are used to limit the inner tooth seat in the circumferential direction, share the force between the connecting part and the motor flange, and improve the stability of operation; at the same time, it has the effect of redundant settings.

As another improvement of the present invention, the end cover is provided with a through hole in the axial direction, and the corresponding through hole on the motor flange is provided with an assembly gap communicating with the positioning groove, and the middle position of the connecting part faces the through hole Provided with grooves. The through hole is set, and the user can fix the motor shell and the housing through the bolt assembly, and the assembly gap is set on the motor flange, and the groove is provided on the connection part. The two are used to accommodate one end of the bolt assembly, making the device layout compact.

As another improvement of the present invention, the fixing holes are uniformly arranged at both ends of the casing in a ring shape, the connecting pieces are correspondingly arranged in the fixing holes at both ends of the casing, and the flange on the casing opposite to the motor flange The other end is fixedly installed with a driven flange through a connecting piece, and the driven flange and the motor flange are respectively provided with connecting holes matched with the connecting piece. The ring-shaped fixing holes improve the stability of the connection between the motor flange and the driven flange and the housing.

As another improvement of the present invention, the final reduction mechanism further includes a first planetary carrier and a helical gear mounted on the first planetary carrier, the helical gear is meshed with the inner gear seat, and the first planetary carrier is The end facing the driven flange is provided with a first sun gear. On the one hand, the meshing of the helical gear and the inner tooth seat can reduce wear during operation and improve the service life; on the other hand, it can reduce noise.

As another improvement of the present invention, an auxiliary reduction mechanism that is in transmission cooperation with the main reduction mechanism is also provided in the housing, and the auxiliary reduction mechanism includes a second planetary carrier, and the second planetary carrier is provided with inner A spur gear meshing with the first sun gear, and a guide sleeve for axially limiting the second planet carrier is installed on the driven flange. The guide sleeve is set on the driven flange to limit the axial position of the second planetary carrier, so as to reduce the axial movement of the auxiliary reduction mechanism during transmission, and further improve the stability of the device operation.

As another improvement of the present invention, a gasket is provided between the helical gear and the motor flange, the helical gear is engaged with a second sun gear, and the second sun gear is fixed to a motor output end connected, the output end of the motor passes through the motor flange and gasket to drive and cooperate with the second sun gear. A gasket is set between the helical gear and the motor flange to further improve the noise reduction effect; at the same time, the wear between the helical gear and the end face of the motor flange is avoided, and the service life is further improved. The output end of the motor runs through the motor flange and the gasket and The second sun gear is connected, which has a certain noise reduction effect.

As another improvement of the present invention, the second planetary carrier is also provided with a transmission part that passes through the driven flange and is rotatably engaged with the guide sleeve, and a transmission plate is fixed on the transmission part. There is also a hoop for restricting the axial movement of the guide sleeve on the part. The transmission plate is installed on the transmission part, which is convenient for disassembly and maintenance, and the clamp is set to limit the axial direction of the guide sleeve, which also has the characteristics of easy disassembly and maintenance.

As another improvement of the present invention, the internal teeth of the housing are arranged in a ring shape on the inner peripheral surface of the housing, and the internal teeth are straight teeth. The integrated structural design of the inner gear part and the housing facilitates processing and manufacturing, further reduces production costs, and improves product competitiveness.

Description of drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a partial cross-sectional structural schematic diagram of the present invention.

Fig. 3 is a structural schematic diagram of the motor flange and the inner gear seat of the present invention.

Fig. 4 is a schematic diagram of the assembly structure of the present invention.

As shown in the figure: 1 shell, 11 internal gear, 12 fixing hole, 13 driven flange, 131 guide sleeve, 2 motor flange, 21 positioning slot, 22 end cover, 221 through hole, 23 assembly clearance, 3 Main deceleration mechanism, 31 inner gear seat, 311 connecting part, 3111 groove, 32 first planetary carrier, 321 helical gear, 322 first sun gear, 4 connectors, 5 pairs of reduction mechanism, 51 second planetary carrier, 511 straight Gear, 6 gasket, 7 second sun gear, 8 motor, 9 transmission part, 91 transmission disc, 92 clamp, 10 connecting hole.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Fig. 1, a tailstay motor gearbox of the present invention includes a housing 1 provided with an integrally formed internal tooth portion 11, a motor flange 2 mounted on one end of the housing 1, and a The main deceleration mechanism 3 in the inner cavity of the housing 1. The inner cavity of the housing 1 is also provided with an inner tooth seat 31 arranged in parallel with the inner tooth part 11, and the inner tooth seat 31 is arranged against the inner tooth part 11 and the inner tooth part 11. Between the motor flange 2;

The end surface of the inner gear seat 31 facing the motor flange 2 is provided with a connecting portion 311 inserted into the motor flange 2 , and the connecting portion 311 serves as a first stop between the inner gear seat 31 and the motor flange 2 structure;

The housing 1 is also provided with a fixing hole 12, and the fixing hole 12 is fitted with a connecting piece 4 inserted into the motor flange 2, and the connecting piece 4 serves as a connection between the motor flange 2 and the housing 1. The second anti-rotation structure.

Please refer to FIG. 1 and FIG. 2 , wherein, at least one set of connecting parts 311 is provided on the inner gear seat 31 to cooperate with the motor flange 2 . The number of the connecting parts 311 is two groups, and the connecting parts 311 of the two groups are radially and symmetrically arranged on the end surface of the inner tooth seat 31. The positioning slot 21, and the motor flange 2 at the end of the positioning slot 21 is also provided with an end cover 22 against the connecting portion 311. The end cover 22 is provided with a through hole 221 in the axial direction, and the motor flange 2 is provided with an assembly gap 23 communicating with the positioning groove 21 corresponding to the through hole 221, and the middle position of the connecting part 311 is set towards the through hole 221. There are grooves 3111. The fixing holes 12 are evenly arranged in a ring shape at both ends of the housing 1, the connectors 4 are correspondingly arranged in the fixing holes 12 at both ends of the housing 1, and the motor flange 2 on the housing 1 is opposite The other end is fixedly mounted with a driven flange 13 through the connecting piece 4 , and the driven flange 13 and the motor flange 2 are respectively provided with connecting holes 10 matched with the connecting piece 4 .

Please refer to Fig. 1, Fig. 2 and Fig. 3, the said final reduction mechanism 3 also includes a first planetary carrier 32 and a helical gear 321 installed on the first planetary carrier 32, said helical gear 321 is connected with the inner gear seat 31 Mesh connection, the first planet carrier 32 is provided with a first sun gear 322 at one end facing the driven flange 13 . The casing 1 is also provided with an auxiliary reduction mechanism 5 that is in transmission cooperation with the main reduction mechanism 3. The auxiliary reduction mechanism 5 includes a second planetary carrier 51, and the second planetary carrier 51 is provided with internal gears respectively 11 and the spur gear 511 meshing with the first sun gear 322 , and the guide sleeve 131 for axially limiting the second planet carrier 51 is installed on the driven flange 13 . A gasket 6 is also arranged between the helical gear 321 and the motor flange 2, the helical gear 321 is meshed with a second sun gear 7, and the second sun gear 7 is fixedly connected with the output end of a motor 8, The output end of the motor 8 passes through the motor flange 2 and the gasket 6 to drive and cooperate with the second sun gear 7 . The second planet carrier 51 is also provided with a transmission part 9 that penetrates through the driven flange 13 and is rotatably engaged with the guide sleeve 131. A transmission disc 91 is mounted and fixed on the transmission part 9. A hoop 92 for restricting the axial movement of the guide sleeve 131 is also provided. The internal tooth portion 11 of the housing 1 is arranged in a ring shape on the inner peripheral surface of the housing 1 , and the internal tooth portion 11 is a straight tooth.

When installing, insert the inner gear holder 31 into the housing 1 from one end of the housing 1, and insert the first planet carrier 32 with the helical gear 321 into the inner gear holder from the housing 1 near the inner gear holder 31 side. 31, and the helical gear 321 on the first planet carrier 32 is meshed with the inner gear seat 31 and the second sun gear 7 respectively, installed on one end of the housing 1 through the motor flange 2, and the inner gear seat 31 is set against the A gasket 6 is provided between the internal gear part 11 and the motor flange 2, and between the motor flange 2 and the helical gear 321; the auxiliary reduction mechanism 5 is inserted into the inner cavity of the housing 1 along the other end of the housing 1, and the second The spur gears 511 on the two planetary carriers 51 mesh with the internal gears 11 and the first sun gear 322 respectively; the driven flange 13 is fixedly installed on the same end of the housing 1 as the auxiliary reduction mechanism 5 through the connector 4, and A guide sleeve 131 is installed between the driven flange 13 and the transmission part 9, and one end of the guide sleeve 131 is abutted against the end face of the second planet carrier 51, and the other end of the guide sleeve 131 is abutted against the end face of the clamp 92, and the clamp 92 is hooped. In the notch on the peripheral side of the transmission part 9, those skilled in the art can set a partition between the guide sleeve 131, the clamp 92 and the second planet carrier 51 to reduce the guide sleeve 131, the clamp 92 and the second planet carrier 51 Wear between the end faces, install the transmission disc 91 in the inner cavity of the transmission part 9, reduce the assembly space, and fix the end cover 33 and the shell of the motor 8 through the cooperation of the bolt assembly and the through hole 221, and lift the motor 8 and the final reduction mechanism 3 The stability of transmission between. The inner tooth part 11 of the device cooperates with the motor flange 2 through its connecting part 311 on the end face of the motor flange 2 as its first anti-rotation structure, and the connecting piece 4 is used as a connection between the motor flange 2 and the housing 1. The second anti-rotation structure, and the motor flange 2 sets the inner tooth seat 31 between the inner tooth part 11 and the motor flange 2, its structural design is simple, it is convenient for production, and the production cost is reduced; at the same time, it has the advantages of convenient disassembly and assembly And the characteristics of stable operation, safety and reliability; two sets of symmetrically arranged connecting parts 311 of this device are used to limit the inner tooth seat 31 in the circumferential direction, share the force between the connecting part 311 and the motor flange 2, and improve the running Stability; at the same time, it has the effect of redundant settings; the guide sleeve 131 is set on the driven flange 13 to limit the axial position of the second planet carrier 51, so as to reduce the axial movement of the auxiliary reduction mechanism 5 during transmission, and further improve the operation of the device Stability; a gasket 6 is provided between the helical gear 321 and the motor flange 2 to further improve the noise reduction effect; at the same time, the wear between the helical gear 321 and the end face of the motor flange 2 is avoided, and the service life is further improved. The device also has the characteristics of being safe and reliable, reducing assembly space and the like.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of tail supporting rod motor gearbox, the shell (1) of the interior teeth portion (11) including being provided with integral molding, are installed on shell The motor flange (2) of body (1) one end, and setting is in the main gear reducer structure (3) of shell (1) inner cavity, it is characterised in that: the shell (1) inner cavity is additionally provided with the interior toothholder (31) being set side by side with interior teeth portion (11), and the interior toothholder (31) supports and is located at interior teeth portion (11) between motor flange (2)；

The interconnecting piece for being inserted into the motor flange (2) is provided on the interior toothholder (31) towards the end face of motor flange (2) (311), the interconnecting piece (311) is as the first spline structure between interior toothholder (31) and motor flange (2)；

It is additionally provided with fixation hole (12) on the shell (1), the insertion motor method is equipped in the fixation hole (12) The connector (4) of blue (2), the connector (4) is as the second spline structure between motor flange (2) and shell (1).

2. a kind of tail supporting rod motor gearbox according to claim 1, it is characterised in that: on the interior toothholder (31) at least One group of interconnecting piece (311) is provided with to match with the motor flange (2).

3. a kind of tail supporting rod motor gearbox according to claim 2, it is characterised in that: interconnecting piece (311) quantity It is two groups, interconnecting piece described in two groups (311) is arranged on the end face of interior toothholder (31) along interior toothholder (31) radial symmetric, the electricity The locating slot (21) passed through for interconnecting piece (311), and the motor flange (2) of locating slot (21) end are offered on machine flange (2) On be additionally provided with the end cap (22) to offset with interconnecting piece (311).

4. a kind of tail supporting rod motor gearbox according to claim 3, it is characterised in that: in axial on the end cap (22) It offers through hole (221), and corresponds to through hole (221) on motor flange (2) and offer the assembly being connected to locating slot (21) Fluted (3111) are arranged towards through hole (221) in the middle position in gap (23), the interconnecting piece (311).

5. a kind of tail supporting rod motor gearbox according to claim 1, it is characterised in that: the fixation hole (12) is annular in shape The both ends of shell (1) are uniformly arranged on, the connector (4) is correspondingly arranged in the fixation hole (12) at shell (1) both ends, institute It states the other end opposite with motor flange (2) on shell (1) and is fixedly installed with driven flange (13), institute by connector (4) It states driven flange (13) and motor flange (2) offers the connecting hole (10) matched with connector (4) respectively.

6. a kind of tail supporting rod motor gearbox according to claim 5, it is characterised in that: the main gear reducer structure (3) is also Including first planet carrier (32) and the helical gear (321) being mounted on first planet carrier (32), the helical gear (321) and internal tooth Seat (31) engagement connects, and one end of driven flange (13) is provided with the first sun gear on the first planet carrier (32) (322)。

7. a kind of tail supporting rod motor gearbox according to claim 6, it is characterised in that: also set up in the shell (1) There is the secondary deceleration mechanism (5) with main gear reducer structure (3) transmission cooperation, the pair deceleration mechanism (5) includes the second planet carrier (51), The spur gear (511) engaged respectively with interior teeth portion (11) and the first sun gear (322) is provided on second planet carrier (51), The guide sleeve (131) of the second planet carrier of axial limiting (51) is also equipped on the driven flange (13).

8. a kind of tail supporting rod motor gearbox stated according to claim 6, it is characterised in that: the helical gear (321) and motor It being additionally provided between flange (2) gasket (6), the helical gear (321) engages connection with one second sun gear (7), and described second Sun gear (7) is fixedly connected with a motor (8) output end, and motor (8) output end runs through the motor flange (2) and gasket (6) cooperate with second sun gear (7) transmission.

9. a kind of tail supporting rod motor gearbox according to claim 7, it is characterised in that: on second planet carrier (51) It is additionally provided on driven flange (13) and the driving section (9) that is rotatably assorted with the guide sleeve (131), the transport unit 9 It is mounted with drive plate (91), the clip for limiting guide sleeve (131) axial movement is additionally provided on the driving section (9) (92)。

10. a kind of tail supporting rod motor gearbox according to claim 1, it is characterised in that: the interior teeth portion of the shell (1) (11) annular in shape to be laid in shell (1) inner peripheral surface, and interior teeth portion (11) is straight-tooth.