CN210087941U - Dual-control hydraulic stepless speed changer - Google Patents
Dual-control hydraulic stepless speed changer Download PDFInfo
- Publication number
- CN210087941U CN210087941U CN201920888943.0U CN201920888943U CN210087941U CN 210087941 U CN210087941 U CN 210087941U CN 201920888943 U CN201920888943 U CN 201920888943U CN 210087941 U CN210087941 U CN 210087941U
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- CN
- China
- Prior art keywords
- output shaft
- pump
- main pump
- control hydraulic
- auxiliary
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000009977 dual effect Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a dual control hydraulic pressure buncher belongs to hydraulic pressure mechanical equipment technical field. It has solved the problem that if present variable pump often is in overload state will seriously influence its life. The dual-control hydraulic stepless transmission comprises a shell, an output shaft, a main pump and an auxiliary pump, wherein the output shaft is connected with the main pump to realize stepless speed change, the front end part of the output shaft extends out of the shell, the rear end of the output shaft is provided with a friction disc in a clamping manner through a shaft sleeve, the auxiliary pump is positioned on the auxiliary shaft, the auxiliary shaft and the output shaft are coaxially arranged, the end part of the auxiliary shaft is fixedly connected with a clutch disc, and the clutch disc corresponds to the end surface of the friction disc. The utility model discloses a connected mode of separation and reunion increases the subpump, does not influence the main pump when conventional operation, effectively reduces its load when the main pump enters overload state, has increased the holistic life of derailleur.
Description
Technical Field
The utility model belongs to the technical field of hydraulic pressure mechanical equipment, a derailleur is related to, in particular to dual control hydraulic pressure buncher.
Background
The hydraulic stepless speed changer can realize the change of the rotating speed of a motor by the difference of energy and flow of a hydraulic system through hydraulic oil, is one of products with the highest technical content in a mechanical hydraulic stepless speed changer, and is a core component for carrying out speed change operation on mechanical products. The main principle is that the engine power drives the hydrostatic stepless speed changer, the active hydraulic pressure drives the auxiliary hydraulic pressure through the hydraulic oil, and the running speed of the vehicle is controlled by controlling the flow of the hydraulic oil. The main components of the hydraulic transmission device are a hydraulic transmission device consisting of a hydraulic pump and a hydraulic motor, wherein the flow of the hydraulic pump can be adjusted, namely the hydraulic transmission device is a variable pump. The hydraulic transmission system can transmit power independently or be connected with a mechanical gearbox in series to transmit power, the hydraulic stepless speed changer is widely applied to agricultural machinery at present due to various characteristics of the hydraulic stepless speed changer, but the speed changer generally needs to carry out overload operation due to severe use environment of the agricultural machinery, and the service life of the variable pump is seriously influenced if the variable pump is often in an overload state.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide one kind can prevent effectively that the variable displacement pump from being in overload state and increasing its whole life's dual control hydraulic pressure buncher.
The purpose of the utility model can be realized by the following technical proposal: the double-control hydraulic stepless speed changer comprises a shell, an output shaft, a main pump and an auxiliary pump, and is characterized in that the output shaft is connected with the main pump to realize stepless speed change, the front end part of the output shaft extends out of the shell, a friction disc is clamped at the rear end of the output shaft through a shaft sleeve, the auxiliary pump is positioned on an auxiliary shaft, the auxiliary shaft and the output shaft are coaxially arranged, a clutch disc is fixedly connected to the end part of the auxiliary shaft, and the clutch disc corresponds to the end face of the friction disc.
The hydraulic stepless speed changer has the technical effects that: when the transmission is in the rated power range of the main pump, the output shaft is driven to operate only through the main pump, when the main pump operates in an overload state in a specific environment, the transmission enables the auxiliary pump to operate and simultaneously drives the clutch disc through control, at the moment, the auxiliary shaft synchronously translates towards the direction of the output shaft, the end face of the clutch disc is connected with the friction disc, the torque force of the output shaft is increased, and therefore the operating power of the main pump is reduced, when the transmission operates to return to a normal state, the auxiliary shaft resets to enable the clutch disc to be separated from the friction disc, and the auxiliary pump.
In the dual-control hydraulic stepless transmission, the output shaft is clamped with the flywheel disc through the shaft sleeve.
In the dual-control hydraulic stepless transmission, a support is fixed in the shell through screws, a bearing for supporting the output shaft is arranged in the center of the support through a clamping ring, and the support is positioned between the friction disc and the flywheel disc.
In the dual control hydraulic stepless transmission, a damping sheet is arranged between the main pump and the end surface of the shell.
Compared with the prior art, the hydraulic stepless speed changer is additionally provided with the auxiliary pump in a clutch connection mode, the main pump is not influenced during conventional operation, the load of the main pump is effectively reduced when the main pump enters an overload state, and the service life of the whole speed changer is prolonged.
Drawings
Fig. 1 is a structural sectional view of the present hydraulic continuously variable transmission.
In the figure, 1, a housing; 2. an output shaft; 3. a main pump; 4. a secondary pump; 5. a friction disk; 6. a counter shaft; 7. a clutch plate; 8. a flywheel disc; 9. a support; 10. a snap ring; 11. a bearing; 12. a damping sheet.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the dual-control hydraulic stepless transmission comprises a housing 1, an output shaft 2, a main pump 3 and an auxiliary pump 4, wherein the output shaft 2 is connected with the main pump 3 to realize stepless speed change, the front end part of the output shaft 2 extends out of the housing 1, the rear end of the output shaft 2 is clamped with a friction disc 5 through a shaft sleeve, the auxiliary pump 4 is positioned on an auxiliary shaft 6, the auxiliary shaft 6 and the output shaft 2 are coaxially arranged, the end part of the auxiliary shaft 6 is fixedly connected with a clutch disc 7, and the clutch disc 7 and the end surface of the friction disc 5 correspond to each other.
In a further elaboration, the output shaft 2 is provided with a flywheel disc 8 through a shaft sleeve in a clamping mode, and the flywheel disc 8 is used for increasing the rotational inertia of the transmission during operation and reducing the speed fluctuation of the transmission.
Furthermore, a support 9 is fixed in the shell 1 through screws, a bearing 11 for supporting the output shaft 2 is arranged in the center of the support 9 through a clamping ring 10, the support 9 is located between the friction disc 5 and the flywheel disc 8, and the structural design can prevent the output shaft 2 from extending too long behind to reduce the operation stability.
Furthermore, a damping sheet 12 is arranged between the main pump 3 and the end face of the housing 1, and the damping sheet 12 is used for buffering the impact force from the housing 1 to the main pump 3, so as to protect the main pump 3.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms housing 1, output shaft 2, primary pump 3, secondary pump 4, friction disc 5, secondary shaft 6, clutch disc 7, flywheel disc 8, carrier 9, snap ring 10, bearing 11, damping plate 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (4)
1. The utility model provides a dual control hydraulic pressure buncher, includes casing (1), output shaft (2), main pump (3) and auxiliary pump (4), its characterized in that, output shaft (2) be connected with main pump (3) and realize infinitely variable and the front end of output shaft (2) stretches out outside casing (1), the rear end of output shaft (2) is equipped with friction disc (5) through the axle sleeve card, auxiliary pump (4) be located countershaft (6) and output shaft (2) between for the coaxial line setting, the tip of countershaft (6) has linked firmly clutch disc (7), wherein clutch disc (7) and friction disc (5) the terminal surface correspond each other.
2. A dual control hydraulic continuously variable transmission as claimed in claim 1, characterized in that the output shaft (2) is provided with a flywheel disc (8) by a shaft sleeve.
3. A dual control hydraulic continuously variable transmission as claimed in claim 2, characterized in that a support (9) is fixed in the housing (1) by screws, the support (9) is centrally provided with a bearing (11) acting as a support for the output shaft (2) by means of a snap ring (10), the support (9) being located between the friction disc (5) and the flywheel disc (8).
4. A dual-control hydraulic continuously variable transmission as claimed in claim 1, characterized in that a damper plate (12) is provided between the main pump (3) and the end face of the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920888943.0U CN210087941U (en) | 2019-06-13 | 2019-06-13 | Dual-control hydraulic stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920888943.0U CN210087941U (en) | 2019-06-13 | 2019-06-13 | Dual-control hydraulic stepless speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087941U true CN210087941U (en) | 2020-02-18 |
Family
ID=69482756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920888943.0U Expired - Fee Related CN210087941U (en) | 2019-06-13 | 2019-06-13 | Dual-control hydraulic stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087941U (en) |
-
2019
- 2019-06-13 CN CN201920888943.0U patent/CN210087941U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Dual control hydraulic continuously variable transmission Effective date of registration: 20211119 Granted publication date: 20200218 Pledgee: Wenling RuoHeng sub branch of Zhejiang Mintai Commercial Bank Co.,Ltd. Pledgor: JINDUN ENGINEERING MACHINERY CO.,LTD. Registration number: Y2021330002317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 |