CN217708682U - Transmission brake mechanism of electric hoist - Google Patents
Transmission brake mechanism of electric hoist Download PDFInfo
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- CN217708682U CN217708682U CN202221534672.7U CN202221534672U CN217708682U CN 217708682 U CN217708682 U CN 217708682U CN 202221534672 U CN202221534672 U CN 202221534672U CN 217708682 U CN217708682 U CN 217708682U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of electric block, a transmission brake mechanism of electric block is related to, which comprises an outer shell, one side of shell is provided with the motor, and the opposite side is provided with the electromagnetic brake, be provided with the main shaft coaxial with the motor shaft in the shell, the main shaft includes the separation and reunion section that is close to motor one end, the brake section that is close to electromagnetic brake one end and the load section at middle part, be provided with the helical gear of connection load in the load section of main shaft, the separation and reunion section of main shaft passes through spline fixedly connected with friction disc, the motor shaft passes through spline fixedly connected with clutch disc, the tip of motor shaft and the tip clearance fit of main shaft, clutch disc and friction disc frictional connection. The utility model provides an electric block's transmission brake mechanism, simple structure has, and the transmission is succinct, and the fault rate is low, and the security is high.
Description
Technical Field
The utility model belongs to the technical field of electric block, a transmission brake mechanism of electric block is related to.
Background
The electric hoist is generally driven by friction clutch, the friction clutch generally comprises a clutch disc and a friction plate, when the load is normal, the clutch disc and the friction plate are in friction connection and can rotate synchronously, so that the motor can normally drive the electric hoist to work, when the load is overloaded, the force applied by the load is greater than the force between the clutch disc and the friction plate, relative sliding occurs between the clutch disc and the friction plate, the motor cannot continuously drive the electric hoist to work, and further, the equipment is protected from being damaged. In order to brake the electric hoist, a brake system is generally provided on the electric hoist. However, most of the transmission brake systems of the existing electric hoists have complex structures, complicated transmission and high failure rate, and in addition, when the friction clutch fails, the load is easy to crash.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric block's transmission brake mechanism to prior art's is not enough, has simple structure, and the transmission is succinct, and the fault rate is low, and the security is high.
In order to solve the technical problem, the purpose of the utility model can be realized through the following technical scheme:
the utility model provides an electric block's transmission brake mechanism, includes the shell, one side of shell is provided with the motor, and the opposite side is provided with electromagnetic brake, be provided with the main shaft coaxial with the motor shaft in the shell, the main shaft is including the separation and reunion section that is close to motor one end, the brake section that is close to electromagnetic brake one end and the load section at middle part, be provided with the helical gear of connecting the load on the load section of main shaft, the separation and reunion section of main shaft passes through spline fixedly connected with friction disc, the motor shaft passes through spline fixedly connected with clutch disc, the tip of motor shaft and the tip clearance fit of main shaft, clutch disc and friction disc frictional connection.
At foretell transmission brake mechanism of electric block, the brake section of main shaft passes through spline fixedly connected with brake cover, the electromagnetic brake cover is established and can be braked the brake cover on the brake cover. Furthermore, the brake sleeve is sleeved on the main shaft, and the brake sleeve is rotatably connected with the shell and extends out of the shell.
In the transmission brake mechanism of the electric hoist, one end of the brake sleeve, which is far away from the main shaft, is provided with an internal thread, and a puller bolt for axially fixing the main shaft is screwed in the internal thread.
At foretell electric block's transmission brake mechanism, one side of shell is provided with first bearing frame, and the opposite side is provided with the second bearing frame, be equipped with first bearing in the first bearing frame, be equipped with the second bearing in the second bearing frame, the motor shaft is worn to establish in first bearing, the brake cover is worn to establish in the second bearing. Furthermore, the inner of the brake sleeve is provided with an axially limited flange, and the spindle is provided with a clamp spring for axially limiting the brake sleeve.
In foretell transmission brake mechanism of electric block, the clutch disc cover sets up the tip at the motor shaft and through the tang structure axial spacing on the motor shaft, leave the clearance between the tip of motor shaft and the friction disc.
At foretell electric block's transmission brake mechanism, be provided with spacing step on the motor shaft and overlap and be equipped with the elastic component that compresses tightly the friction disc, the one end axial of elastic component is spacing on spacing step, and the other end is contradicted with the friction disc and is connected, the elastic component applys the power towards the clutch disc direction to the friction disc. Preferably, the elastic member is a disc spring.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses improved electric block's transmission brake structure, through clutch disc and motor shaft fixed connection, friction disc and main shaft fixed connection, the maximize reduce drive assembly, have simple structure, the preparation is easy, and the transmission is succinct, advantage that the fault rate is low. The utility model discloses redesigned friction clutch and electromagnetic brake's effect site, when friction clutch broke down, electromagnetic brake can the direct braking main shaft, prevented the load crash to electric block's security performance has been improved.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is an axial cross-sectional view of the present invention;
fig. 3 is a perspective view of the main shaft of the present invention;
reference numerals: 1. a housing; 2. a motor; 3. electromagnetic braking; 4. a motor shaft; 5. a main shaft; 5a, a clutch section; 5b, a brake section; 5c, a load section; 6. a friction plate; 7. a clutch plate; 8. a brake sleeve; 9. an internal thread; 10. jacking the bolt; 11. a first bearing housing; 12. a second bearing housing; 13. a first bearing; 14. a second bearing; 15. an elastic member.
Detailed Description
The invention will be further described in the following by way of example with reference to the accompanying drawings, in which reference is made to figures 1 to 3:
the utility model provides a transmission brake mechanism of electric block, includes shell 1, one side of shell 1 is provided with motor 2, and the opposite side is provided with electromagnetic brake 3, be provided with main shaft 5 coaxial with motor shaft 4 in the shell 1, main shaft 5 is including the clutch section 5a that is close to motor 2 one end, the brake section 5b that is close to 3 one ends of electromagnetic brake and the load section 5c at middle part (as shown in figure 3), be provided with the helical gear of connecting load on the load section 5c of main shaft 5, clutch section 5a of main shaft 5 passes through spline fixedly connected with friction disc 6, motor shaft 4 passes through spline fixedly connected with clutch disc 7, the tip of motor shaft 4 and the tip clearance fit of main shaft 5, clutch disc 7 and friction disc 6 frictional connection.
Referring to fig. 2, in the embodiment, the electromagnetic brake 3 brakes the spindle 5 through the brake sleeve 8, and the specific structure is as follows: the brake section 5b of main shaft 5 passes through spline fixedly connected with brake cover 8, 3 covers of electromagnetic brake are established on brake cover 8 and can brake cover 8. Furthermore, the brake sleeve 8 is sleeved on the main shaft 5, and the brake sleeve 8 is rotatably connected with the shell 1 and extends out of the shell 1.
The working mode of the embodiment is as follows:
friction clutch: when the load is normal, the force applied by the load to the friction plate 6 is smaller than the friction force between the friction plate 6 and the clutch plate 7, the motor shaft 4 drives the clutch plate 7 to rotate together, the clutch plate 7 drives the friction plate 6 to synchronously rotate through the friction force, the friction plate 6 drives the main shaft 5 to synchronously rotate, the load is further pulled up, and the electric hoist normally works; when the load is overloaded, the force applied by the load to the friction plate 6 is greater than the friction force between the friction plate 6 and the clutch disc 7, the motor shaft 4 drives the clutch disc 7 to rotate together, the clutch disc 7 cannot drive the friction plate 6 to synchronously rotate, and the electric hoist stops working.
A brake system: when the brake is needed, the electromagnetic brake 3 brakes the brake sleeve 8 and brakes the spindle 5 fixedly connected with the brake sleeve 8. When the friction clutch fails, the load can be prevented from falling as long as the main shaft 5 is braked by the brake system.
An internal thread 9 is arranged at one end of the brake sleeve 8 far away from the main shaft 5, and a puller bolt 10 for axially fixing the main shaft 5 is screwed in the internal thread 9.
A first bearing seat 11 is arranged on one side of the shell 1, a second bearing seat 12 is arranged on the other side of the shell, a first bearing 13 is assembled in the first bearing seat 11, a second bearing 14 is assembled in the second bearing seat 12, the motor shaft 4 is arranged in the first bearing 13 in a penetrating mode, and the brake sleeve 8 is arranged in the second bearing 14 in a penetrating mode. Furthermore, the inner of the brake sleeve 8 is provided with an axially limited flange, the spindle 5 is provided with a clamp spring for axially limiting the brake sleeve 8, the flange and the clamp spring jointly limit the brake sleeve 8, and the brake sleeve 8 is prevented from moving in work.
The clutch disc 7 is arranged at the end of the motor shaft 4 in a sleeved mode and axially limited through a spigot structure on the motor shaft 4, and a gap is reserved between the end of the motor shaft 4 and the friction plate 6, so that the motor shaft 4 and the friction plate 6 are prevented from interfering when the motor shaft works.
Be provided with spacing step and the cover is equipped with the elastic component 15 that compresses tightly friction disc 6 on above-mentioned motor shaft 4, the one end axial of elastic component 15 is spacing on spacing step, and the other end is contradicted with friction disc 6 and is connected, elastic component 15 exerts the power towards clutch disc 7 direction to friction disc 6, elastic component 15 has guaranteed friction separation and reunion normal work. Preferably, the elastic member 15 is a disc spring.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides an electric block's transmission brake mechanism, includes shell (1), its characterized in that, one side of shell (1) is provided with motor (2), and the opposite side is provided with electromagnetic brake (3), be provided with in shell (1) with main shaft (5) coaxial with motor shaft (4), main shaft (5) are including clutch section (5 a) near motor (2) one end, brake section (5 b) near electromagnetic brake (3) one end and load section (5 c) at middle part, be provided with the helical gear of connecting the load on load section (5 c) of main shaft (5), clutch section (5 a) of main shaft (5) are through spline fixedly connected with friction disc (6), motor shaft (4) are through spline fixedly connected with clutch disc (7), the tip of motor shaft (4) and the tip clearance fit of main shaft (5), clutch disc (7) and friction disc (6) frictional connection.
2. The transmission brake mechanism of the electric hoist as claimed in claim 1, characterized in that the brake section (5 b) of the main shaft (5) is fixedly connected with a brake sleeve (8) through a spline, and the electromagnetic brake (3) is sleeved on the brake sleeve (8) and can brake the brake sleeve (8).
3. The transmission brake mechanism of the electric hoist as claimed in claim 2, characterized in that the end of the brake sleeve (8) away from the main shaft (5) is provided with an internal thread (9), and a puller bolt (10) for axially fixing the main shaft (5) is screwed in the internal thread (9).
4. The transmission brake mechanism of the electric hoist as claimed in claim 2, characterized in that one side of the housing (1) is provided with a first bearing seat (11) and the other side is provided with a second bearing seat (12), a first bearing (13) is assembled in the first bearing seat (11), a second bearing (14) is assembled in the second bearing seat (12), the motor shaft (4) is arranged in the first bearing (13) in a penetrating manner, and the brake sleeve (8) is arranged in the second bearing (14) in a penetrating manner.
5. The transmission brake mechanism of the electric hoist as claimed in claim 1, wherein the clutch disc (7) is sleeved on the end of the motor shaft (4) and axially limited by a spigot structure on the motor shaft (4), and a gap is left between the end of the motor shaft (4) and the friction plate (6).
6. The transmission brake mechanism of the electric hoist as claimed in claim 1, wherein the motor shaft (4) is provided with a limit step and is sleeved with an elastic member (15) for compressing the friction plate (6), one end of the elastic member (15) is axially limited on the limit step, the other end of the elastic member is connected with the friction plate (6) in an abutting manner, and the elastic member (15) applies a force to the friction plate (6) towards the clutch disc (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221534672.7U CN217708682U (en) | 2022-06-16 | 2022-06-16 | Transmission brake mechanism of electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221534672.7U CN217708682U (en) | 2022-06-16 | 2022-06-16 | Transmission brake mechanism of electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217708682U true CN217708682U (en) | 2022-11-01 |
Family
ID=83801285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221534672.7U Active CN217708682U (en) | 2022-06-16 | 2022-06-16 | Transmission brake mechanism of electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217708682U (en) |
-
2022
- 2022-06-16 CN CN202221534672.7U patent/CN217708682U/en active Active
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