CN104033449B - Servomotor capable of being slowly stopped and smoothly started - Google Patents
Servomotor capable of being slowly stopped and smoothly started Download PDFInfo
- Publication number
- CN104033449B CN104033449B CN201410201898.9A CN201410201898A CN104033449B CN 104033449 B CN104033449 B CN 104033449B CN 201410201898 A CN201410201898 A CN 201410201898A CN 104033449 B CN104033449 B CN 104033449B
- Authority
- CN
- China
- Prior art keywords
- oil
- chamber
- cavity
- servomotor
- collecting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000013016 damping Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 27
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a servomotor capable of being slowly stopped and smoothly started. The servomotor capable of being slowly stopped and smoothly started comprises an oil cavity, a partition plate and a piston which is arranged in the oil cavity and provided with a push rod. The oil cavity is divided into a starting cavity and a stopping cavity by the partition plate. The starting cavity and the stopping cavity are respectively provided with an oil receiving port. A damping oil hole is further formed in the bottom of the starting cavity. The bottom of the starting cavity is further provided with an oil channel communicated with the starting cavity. A one-way valve is arranged on the oil channel. The flow direction of the one-way valve is from the outside of the starting cavity to the inside of the starting cavity. The servomotor capable of being slowly stopped and smoothly started is simple in structure and solves the problems that when an existing servomotor is stopped, the existing servomotor is prone to colliding with the bottom of an oil cylinder due to the inertia of a device, and parts are damaged.
Description
Technical field
The invention belongs to water conservancy, hydroelectric generation machinery equipment, more particularly, to servomotor.
Background technology
In the prior art, servomotor is when closed because equipment inertia is easy to and the collision of oil cylinder bottom, part of damage.This
Device one side solves the problems, such as that servomotor, when closed because inertia is bumped against with oil cylinder bottom, on the other hand solves again and connects
Power device can be along quick-action work it is ensured that the operating efficiency of equipment when opening.
Content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, a kind of slow pass of present invention offer is suitable to open type servomotor,
Servomotor can be made to have slow closing along the function of opening.
Technical scheme：For achieving the above object, the present invention is achieved through the following technical solutions：A kind of slow pass is suitable to open type relay
Device, including oil pocket, dividing plate and the piston with push rod being located in oil pocket, oil pocket is divided into unlatching chamber and closing by described dividing plate
Chamber, described unlatching chamber and pass closed chamber are equipped with oil-collecting hole, and the bottom in described unlatching chamber is further opened with damping oil hole, open chamber simultaneously
Bottom be additionally provided with and open the oil circuit that chamber connects, this oil circuit is provided with check valve, and the flow direction of this check valve is from opening chamber
To interior.
Improve further, the diameter of described damping oil hole is less than the diameter of oil-collecting hole.
Preferably, described damping oil hole and the half with a diameter of oil-collecting hole diameter opening the oil circuit that chamber connects.
Improve further, when described piston pushes the extreme position opening chamber, the oil-collecting hole opening chamber side is by piston
Closing.
Beneficial effect：The present invention compared with prior art, has advantages below：Structure is simple, solves servomotor and is closing
When due to equipment inertia be easy to and oil cylinder bottom bump against, the problem of part of damage.
Brief description
Fig. 1 is the structural representation of servomotor of the present invention；
Wherein, oil pocket 1, dividing plate 2, piston 3, unlatching chamber 4, pass closed chamber 5, oil-collecting hole 6, damping oil hole 7, check valve 8.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described.
As shown in Figure 1, a kind of slow close along opening type servomotor, including oil pocket, dividing plate and be located in oil pocket with push rod
Piston, oil pocket is divided into unlatching chamber and closes closed chamber by described dividing plate, described unlatching chamber and close closed chamber and be equipped with oil-collecting hole, described opens
The bottom opening chamber is further opened with damping oil hole, and the bottom simultaneously opening chamber is additionally provided with and opens the oil circuit that chamber connects, on this oil circuit
It is provided with check valve, the flow direction of this check valve is from opening chamber to interior.When piston is pushed into the extreme position opening chamber, open
The oil-collecting hole of chamber side is stopped closing by piston.
The present invention opens bottom of chamber portion setting damping hole and check valve in servomotor.When servomotor is closing closed chamber cut-in pressure oil
Afterwards, piston is moving to unlatching chamber, opens the original hydraulic oil in chamber and is drained by oil-collecting hole, when piston movement covers oil-collecting hole simultaneously
When continuing motion, check valve is located at servomotor and opens the discharge stoping hydraulic oil on bottom of chamber portion and oil-collecting hole identical oil circuit, opens
Open remaining pressure oil in chamber to discharge by damping hole, damping hole is little due to oilhole, and the hydraulic oil of discharge is more slow, this
The translational speed of sample piston and piston rod just slack-off it is ensured that equipment will not produce larger shock with oil cylinder bottom.In relay
When device is opened, open the steel ball that the original oil-collecting hole cut-in pressure oil in chamber backs down on check valve, entrance is opened chamber and promoted work along speed
Fill in closing closed chamber movement, piston exposes in moving process opens the original oil-collecting hole in chamber, and oil-collecting hole now continues supply pressure
Power oil, promotes piston to move to closing closed chamber by pressure oil.
The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of slow close along opening type servomotor it is characterised in that：Including oil pocket, dividing plate be located at the work with push rod in oil pocket
Plug, oil pocket is divided into unlatching chamber and closes closed chamber by described dividing plate, and described unlatching chamber is equipped with oil-collecting hole, when piston pushes away with closing closed chamber
When entering the extreme position to unlatching chamber, the oil-collecting hole opening chamber side is stopped closing, wherein, the bottom in described unlatching chamber by piston
Be further opened with the damping oil hole that diameter is less than the diameter of oil-collecting hole, the bottom simultaneously opening chamber is additionally provided with oil circuit, its one end with open
Open chamber connection, the other end connects with oil-collecting hole, and this oil circuit is provided with check valve, the flow direction of this check valve be from unlatching chamber to
Interior.
2. delay according to claim 1 close along opening type servomotor it is characterised in that：Described damping oil hole and with open chamber even
The half of a diameter of oil-collecting hole diameter of logical oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410201898.9A CN104033449B (en) | 2014-05-13 | 2014-05-13 | Servomotor capable of being slowly stopped and smoothly started |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410201898.9A CN104033449B (en) | 2014-05-13 | 2014-05-13 | Servomotor capable of being slowly stopped and smoothly started |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033449A CN104033449A (en) | 2014-09-10 |
| CN104033449B true CN104033449B (en) | 2017-02-15 |
Family
ID=51464375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410201898.9A Active CN104033449B (en) | 2014-05-13 | 2014-05-13 | Servomotor capable of being slowly stopped and smoothly started |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033449B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10006476B2 (en) | 2015-05-22 | 2018-06-26 | Hamilton Sundstrand Corporation | Mistake proof ram air turbine downlock protection |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB698651A (en) * | 1950-12-20 | 1953-10-21 | Bendix Aviat Corp | Improvements in or relating to hydraulic motors |
| US3033169A (en) * | 1961-02-27 | 1962-05-08 | Kimwood Machine Co | Fluid pressure cylinder |
| US3138066A (en) * | 1961-10-27 | 1964-06-23 | Phil Wood Ind Ltd | Cushioned-stroke reciprocatory hydraulic motor |
| DE2323271A1 (en) * | 1973-05-09 | 1974-11-21 | Bosch Gmbh Robert | WORK CYLINDER |
| TW468005B (en) * | 1998-11-06 | 2001-12-11 | Smc Corp | Pneumatic cylinder with cushion mechanism |
| TW451031B (en) * | 1999-10-01 | 2001-08-21 | Smc Corp | Linear actuator with air buffer mechanism |
| DE20106764U1 (en) * | 2001-04-19 | 2001-07-19 | Schlutz, Heinz, 45770 Marl | Mining cylinder with coating |
| CN202867419U (en) * | 2012-10-25 | 2013-04-10 | 无锡天惠塑机有限公司 | Hydraulic cylinder buffering structure |
| CN203948382U (en) * | 2014-05-13 | 2014-11-19 | 江苏航天水力设备有限公司 | A kind of slow pass is along opening type servomotor |
-
2014
- 2014-05-13 CN CN201410201898.9A patent/CN104033449B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033449A (en) | 2014-09-10 |
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