CN204921773U - Arresting gear for speed reducer - Google Patents
Arresting gear for speed reducer Download PDFInfo
- Publication number
- CN204921773U CN204921773U CN201520440889.5U CN201520440889U CN204921773U CN 204921773 U CN204921773 U CN 204921773U CN 201520440889 U CN201520440889 U CN 201520440889U CN 204921773 U CN204921773 U CN 204921773U
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- CN
- China
- Prior art keywords
- piston
- speed reducer
- housing
- sleeve
- braking device
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an arresting gear for speed reducer, including casing (1), spline housing (3), piston (10) of being equipped with spring (5), moving plate (11), still (12) and sleeve (2), sleeve (2) are installed and are fixed on spline housing (3) and through circlip (7), piston (10) are between sleeve (2) and casing (1), form a piston chamber between casing (1) and piston (10), form a spring cavity between sleeve (2) and piston (10), casing (1) lower part still is equipped with supplementary oil duct (8) that communicate with the spring cavity and controls oil duct (9) with the piston chamber of intercommunication, the utility model discloses on original basis, add a sleeve and corresponding sealed, cause the spring cavity of speed reducer inner brake to pressure release oil through the outer joint oil circuit, make the stopper braking not receive the influence of pressure release control oil duct backpressure to realize the prompt braking action of stopper, guarantee the reliability of host computer.
Description
Technical field
The utility model relates to a kind of speed reducer, specifically a kind of speed reducer braking device.
Background technique
Planet-gear speed reducer has the advantages such as transmission efficiency is high, gear range is wide, bearing capacity is large, stable working, compact structure, so be widely used in the compact power transmission of claimed structure.In engineering machinery field, the mode of oil hydraulic motor step planetary gear speed reducer Combination application is often adopted to drive the actions such as engineering machinery walking, revolution, elevator.
In the course of the work, need to brake speed reducer, therefore planet-gear speed reducer needs arrangement brake device to engineering machinery.
Planet-gear speed reducer generally adopts the piece-type brake of enclosed, and braking maneuver process is: the spring force of spring, by piston pressing friction sheet, makes friction plate combine, and carries out the rotating shaft braking of speed reducer; Pilot pressure acts on piston and makes spring-compressed, and then friction plate is separated, and then removes the rotating shaft braking of speed reducer.
Conventional brake mostly is normally closed brake, principle as shown in Figure 1:
Under normality, the pre-pressing force of spring 5 acts on piston 10, makes to compress laminating between moving plate 11, still 12, is stoped the rotation of spline housing 3, thus make break be in normally off by the friction torque between dynamic and static.
Break opening procedure is: pilot pressure oil enters piston cavity from control oil duct 10, promotes piston 8 Compress Spring 4, and then makes dynamic and static separation, brake off.
This kind of structure, when break emptying time control liquefaction road 9 back pressure is larger, easily causes the emptying time longer, causes reductor braking not in time, affect reliability of main.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of speed reducer braking device, and this device does not affect by draining pipeline magnitude of back pressure, can realize fast braking by speed reducer, ensures the reliability of main frame.
To achieve these goals, the technical solution adopted in the utility model is: a kind of speed reducer braking device, comprises housing, spline housing, the piston that spring is housed, moving plate and still;
The two ends, left and right of described spline housing are respectively equipped with internal spline, and the internal spline of left end connects motor or motor, the internal spline of right-hand member connects speed reducer; Described moving plate is connected with spline housing by spline, and still is connected with housing by rectangle groove;
Also comprise sleeve; Described sleeve to be arranged on spline housing and to be fixed by circlip, and described piston is between sleeve and housing;
Wherein, a piston cavity is formed between housing and piston; A spring chamber is formed between sleeve and piston; Lower housing portion is also provided with the auxiliary oil channel be communicated with spring chamber and the control oil duct be communicated with piston cavity.
Further, seal arrangement is equipped with in described sleeve and the cooperation place of housing.
Further, the Sealing playing seal action is equipped with in described piston and housing cooperation place.
Further, described sleeve and piston cooperation place are also provided with the seal arrangement that seals and can reduce and process and the support ring of assembling difficulty.
Further, described moving plate and still are mutually close under braking state, under relieving state, both are separated from each other.
Further, this speed reducer is separate modular with braking device or is integrated in one with speed reducer.
Compared with traditional break:
The utility model is on original basis, add a sleeve and corresponding sealing, pressure release oil is caused the spring chamber of speed reducer inner brake by outer connection oil circuit, make brake not control the impact of oil duct back pressure by pressure release, thus realize the fast braking of break, ensure the reliability of main frame;
Design support ring simultaneously, effectively reduce processing and assembling difficulty, ensure the coaxality of piston and sleeve;
And spring chamber inner fluid can also increase the rigidity of spring, improve device speed of response further.
Accompanying drawing explanation
Fig. 1 is conventional brake structural representation;
Fig. 2 is the utility model structural representation;
Fig. 3 is the utility model Outer Joint Pipeline embodiment figure.
In figure: 1, housing, 2, sleeve, 3, spline housing, 4, support ring, 5, spring, 6, Sealing, 7, circlip, 8, auxiliary oil channel, 9, control oil duct, 10, piston, 11, moving plate, 12, still, 13, baffle plate, 1-1, braking device of speed reducer, 1-2, solenoid directional control valve, 1-3, fuel tank.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model is with accompanying drawing 2 for benchmark, and the left and right, upper and lower of accompanying drawing 2 is of the present utility model left and right, upper and lower.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, numerical value of the parts of setting forth in the present embodiment etc. is not limited to scope of the present utility model.
As shown in Figure 2, a kind of speed reducer braking device, comprises housing 1, spline housing 3, the piston 10 that spring 5 is housed, moving plate 11 and still 12;
The two ends, left and right of described spline housing 3 are respectively equipped with internal spline, and the internal spline of left end connects motor or motor, the internal spline of right-hand member connects speed reducer; Described moving plate 11 is connected with spline housing 3 by spline, and still 12 is connected with housing 1 by rectangle groove;
Described moving plate 11 and still 12 are mutually close under braking state, under relieving state, both are separated from each other;
In addition, this device also comprises sleeve 2; Described sleeve 2 to be arranged on spline housing 3 and to be fixed by circlip 7, and described piston 10 is between sleeve 2 and housing 1;
Wherein, a piston cavity is formed between housing 1 and piston 10; A spring chamber is formed between sleeve 2 and piston 10; Housing 1 bottom is also provided with the auxiliary oil channel 8 that is communicated with spring chamber and controls oil duct 9 with the piston cavity be communicated with, and auxiliary oil channel 8, for the turnover of the hydraulic oil of spring chamber, controls the turnover of oil duct 9 for the hydraulic oil of piston cavity.
Further, for ensureing sealability, described sleeve 2 is equipped with seal arrangement with the cooperation place of housing 1.
Further, described piston 10 is equipped with housing 1 cooperation place the Sealing 6 playing seal action.
Further, described sleeve 2 and piston 10 cooperation place are also provided with the seal arrangement that seals and can reduce and process and the support ring 4 of assembling difficulty, and wherein support ring 4 can reduce and processes and assembling difficulty, the coaxality of guarantee piston 10 and sleeve 2.
Wherein, this speed reducer braking device 1-1 for separate modular or can be integrated in one with speed reducer, is namely not limited to the fixed structure described in Fig. 2, has larger flexibility.
As shown in Figure 3, provide a kind of concrete outer connecting pipe road embodiment realizing this function, this embodiment is just aid illustration the utility model, instead of limits concrete enforcement of the present utility model.
When needs brake off state, Stress control oil P enters the right chamber of reducer brake 1-1 shown in Fig. 3, spring chamber fluid flows back to fuel tank (now solenoid directional control valve 1-2 obtain electric be in left position state) by auxiliary oil channel 8 and solenoid directional control valve 1-2, and the moving plate 11 shown in Fig. 2, still 12 are separated from each other.
When needs are braked, cutting-off controlling pressure oil P, piston 10 shown in Fig. 2 is past under the pre-pressing force of thrust spring 5 to move right, pressing friction sheet, make the fluid of piston cavity by solenoid directional control valve 1-2, directly enter spring chamber (now solenoid directional control valve 1-2 dead electricity is in right position state), spring chamber belongs to self-priming oil condition simultaneously, reduce with this return oil pressure controlling oil duct 9, accelerate retro-speed.
Wherein, the solenoid directional control valve 1-2 that outer connection oil circuit adopts is a kind of functional statement, instead of the necessary part of specifying; As long as the function stated can be met, do not limit the form of oil circuit and element, all in protection domain.
In sum, the utility model is on original basis, add a sleeve 2 and corresponding sealing, pressure release oil is caused the spring chamber of speed reducer inner brake by outer connection oil circuit, brake is made not control the impact of oil duct 9 back pressure by pressure release, thus realize the fast braking of break, ensure the reliability of main frame;
Design support ring 4 simultaneously, effectively reduce processing and assembling difficulty, ensure the coaxality of piston 10 and sleeve 2;
And the fluid in spring chamber can also increase the rigidity of spring 5, improve device speed of response further.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.
Claims (6)
1. a speed reducer braking device, comprises housing (1), spline housing (3), the piston (10) that spring (5) are housed, moving plate (11) and still (12);
The two ends, left and right of described spline housing (3) are respectively equipped with internal spline, and the internal spline of left end connects motor or motor, the internal spline of right-hand member connects speed reducer; Described moving plate (11) is connected with spline housing (3) by spline, and still (12) is connected with housing (1) by rectangle groove;
It is characterized in that, also comprise sleeve (2); Described sleeve (2) be arranged on spline housing (3) go up and pass through circlip (7) fix, described piston (10) is between sleeve (2) and housing (1);
Wherein, a piston cavity is formed between housing (1) and piston (10); A spring chamber is formed between sleeve (2) and piston (10); Housing (1) bottom is also provided with the auxiliary oil channel (8) that is communicated with spring chamber and controls oil duct (9) with the piston cavity be communicated with.
2. a kind of speed reducer braking device according to claim 1, is characterized in that, described sleeve (2) is equipped with seal arrangement with the cooperation place of housing (1).
3. a kind of speed reducer braking device according to claim 1 and 2, is characterized in that, the Sealing (6) playing seal action is equipped with in described piston (10) and housing (1) cooperation place.
4. a kind of speed reducer braking device according to claim 3, is characterized in that, described sleeve (2) and piston (10) cooperation place are also provided with the seal arrangement that seals and can reduce and process and the support ring (4) of assembling difficulty.
5. a kind of speed reducer braking device according to claim 1 and 2, is characterized in that, described moving plate (11) and still (12) are mutually close under braking state, under relieving state, both are separated from each other.
6. a kind of speed reducer braking device according to claim 1 and 2, is characterized in that, this speed reducer is separate modular with braking device or is integrated in one with speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440889.5U CN204921773U (en) | 2015-06-25 | 2015-06-25 | Arresting gear for speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440889.5U CN204921773U (en) | 2015-06-25 | 2015-06-25 | Arresting gear for speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921773U true CN204921773U (en) | 2015-12-30 |
Family
ID=54970904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520440889.5U Expired - Fee Related CN204921773U (en) | 2015-06-25 | 2015-06-25 | Arresting gear for speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921773U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860209A (en) * | 2018-06-29 | 2018-11-23 | 中车工业研究院有限公司 | A kind of rail vehicle power assembly |
| CN110641617A (en) * | 2019-10-14 | 2020-01-03 | 何陈冬 | Marine anchor machine auxiliary device |
| CN114321233A (en) * | 2021-03-26 | 2022-04-12 | 徐州科源液压股份有限公司 | External braking rotation of rotary drilling rig |
| CN114321233B (en) * | 2021-03-26 | 2024-04-19 | 徐州科源液压股份有限公司 | External braking rotation of rotary drilling rig |
-
2015
- 2015-06-25 CN CN201520440889.5U patent/CN204921773U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860209A (en) * | 2018-06-29 | 2018-11-23 | 中车工业研究院有限公司 | A kind of rail vehicle power assembly |
| CN110641617A (en) * | 2019-10-14 | 2020-01-03 | 何陈冬 | Marine anchor machine auxiliary device |
| CN110641617B (en) * | 2019-10-14 | 2020-11-27 | 浙江程诚文化用品有限公司 | Marine anchor machine auxiliary device |
| CN114321233A (en) * | 2021-03-26 | 2022-04-12 | 徐州科源液压股份有限公司 | External braking rotation of rotary drilling rig |
| CN114321233B (en) * | 2021-03-26 | 2024-04-19 | 徐州科源液压股份有限公司 | External braking rotation of rotary drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |