CN104033449A - Servomotor capable of being slowly stopped and smoothly started - Google Patents
Servomotor capable of being slowly stopped and smoothly started Download PDFInfo
- Publication number
- CN104033449A CN104033449A CN201410201898.9A CN201410201898A CN104033449A CN 104033449 A CN104033449 A CN 104033449A CN 201410201898 A CN201410201898 A CN 201410201898A CN 104033449 A CN104033449 A CN 104033449A
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- oil
- chamber
- cavity
- servomotor
- opening
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- 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 power machinery equipment, relate in particular to servomotor.
Background technique
In the prior art, servomotor when closing because equipment inertia is easy to and bump against oil cylinder bottom, part of damage.This device has solved on the one hand the problem that servomotor bumps against due to inertia and oil cylinder bottom when cutting out, and has solved again on the other hand servomotor and can do along quick-action when opening, the working efficiency of assurance equipment.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of slow pass along opening type servomotor, can make servomotor there is slow closing along the function opening.
Technological scheme: for achieving the above object, the present invention is achieved through the following technical solutions: a kind of slow pass is along opening type servomotor, comprise oil pocket, dividing plate and be located at the piston with push rod in oil pocket, described dividing plate is divided into oil pocket to open chamber and close chamber, described unlatching chamber and close chamber and be equipped with oil-collecting hole, the bottom in described unlatching chamber also offers damping oil hole, the bottom of simultaneously opening chamber is also provided with and the oil circuit of opening chamber and being communicated with, this oil circuit is provided with one-way valve, and the flow direction of this one-way valve is to interior from opening chamber.
Further improve, the diameter of described damping oil hole is less than the diameter of oil-collecting hole.
As preferably, described damping oil hole and be half of oil-collecting hole diameter with the diameter of opening the oil circuit that chamber is communicated with.
Further improve, when described piston pushes the limit position of opening chamber, open the oil-collecting hole of chamber one side by piston closes.
Beneficial effect: the present invention compared with prior art, has the following advantages: simple in structure, solve servomotor when closing because equipment inertia is easy to and bump against oil cylinder bottom, the problem of part of damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of servomotor of the present invention;
Wherein, oil pocket 1, dividing plate 2, piston 3, open chamber 4, close chamber 5, oil-collecting hole 6, damping oil hole 7, one-way valve 8.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, plant slow closing along opening type servomotor, comprise oil pocket, dividing plate and be located at the piston with push rod in oil pocket, described dividing plate is divided into oil pocket to open chamber and close chamber, described unlatching chamber and close chamber and be equipped with oil-collecting hole, the bottom in described unlatching chamber also offers damping oil hole, and the bottom of simultaneously opening chamber is also provided with and the oil circuit of opening chamber and being communicated with, this oil circuit is provided with one-way valve, and the flow direction of this one-way valve is to interior from opening chamber.When piston is pushed into the limit position of opening chamber, the oil-collecting hole of opening chamber one side is stopped sealing by piston.
The present invention opens bottom, chamber at servomotor damping hole and one-way valve is set.When servomotor is cutting out after the cut-in pressure oil of chamber, piston is moving to opening chamber, opening the original hydraulic oil in chamber drains by oil-collecting hole, when piston moves when covering oil-collecting hole and continuing motion, one-way valve is located at servomotor and opens on the oil circuit identical with oil-collecting hole of bottom, chamber, stop the discharge of hydraulic oil, opening remaining pressure oil in chamber can only discharge by damping hole, damping hole is because oilhole is little, the hydraulic oil of discharging is comparatively slow, the travelling speed of piston and piston rod is just slack-off like this, and the equipment that guaranteed can not produce larger shock with oil cylinder bottom.When servomotor is opened, open the original oil-collecting hole cut-in pressure oil in chamber and back down the steel ball on one-way valve, entering unlatching chamber moves to closing chamber along speed promotion piston, piston exposes in moving process opens the original oil-collecting hole in chamber, oil-collecting hole now continues supply pressure oil, promotes piston move to closing chamber by pressure oil.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a slow pass is along opening type servomotor, it is characterized in that: comprise oil pocket, dividing plate and be located at the piston with push rod in oil pocket, described dividing plate is divided into oil pocket to open chamber and close chamber, described unlatching chamber and close chamber and be equipped with oil-collecting hole, the bottom in described unlatching chamber also offers damping oil hole, the bottom of simultaneously opening chamber is also provided with and the oil circuit of opening chamber and being communicated with, and this oil circuit is provided with one-way valve, and the flow direction of this one-way valve is to interior from opening chamber.
2. slow pass, along opening type servomotor, is characterized in that: the diameter of described damping oil hole is less than the diameter of oil-collecting hole according to claim 1.
3. slow closing along opening type servomotor according to claim 2, is characterized in that: described damping oil hole and be half of oil-collecting hole diameter with the diameter of opening the oil circuit that chamber is communicated with.
4. slow pass, along opening type servomotor, is characterized in that according to claim 3: when described piston pushes the limit position of opening chamber, open the oil-collecting hole of chamber one side by piston closes.
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 true CN104033449A (en) | 2014-09-10 |
| CN104033449B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3095708A1 (en) * | 2015-05-22 | 2016-11-23 | Hamilton Sundstrand Corporation | Mistake proof ram air turbine downlock protection |
Citations (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 |
| JPS5014985A (en) * | 1973-05-09 | 1975-02-17 | ||
| CN1253242A (en) * | 1998-11-06 | 2000-05-17 | 速睦喜股份有限公司 | Cylinder having buffer mechanism |
| CN1290820A (en) * | 1999-10-01 | 2001-04-11 | 速睦喜股份有限公司 | Linear driver with air buffer machanism |
| 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
Patent Citations (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 |
| JPS5014985A (en) * | 1973-05-09 | 1975-02-17 | ||
| CN1253242A (en) * | 1998-11-06 | 2000-05-17 | 速睦喜股份有限公司 | Cylinder having buffer mechanism |
| CN1290820A (en) * | 1999-10-01 | 2001-04-11 | 速睦喜股份有限公司 | Linear driver with air buffer machanism |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3095708A1 (en) * | 2015-05-22 | 2016-11-23 | Hamilton Sundstrand Corporation | Mistake proof ram air turbine downlock protection |
| US10006476B2 (en) | 2015-05-22 | 2018-06-26 | Hamilton Sundstrand Corporation | Mistake proof ram air turbine downlock protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033449B (en) | 2017-02-15 |
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