CN209800710U - Gear selecting and shifting assembly integrating functions of ventilation and gear selecting and shifting of gearbox - Google Patents
Gear selecting and shifting assembly integrating functions of ventilation and gear selecting and shifting of gearbox Download PDFInfo
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- CN209800710U CN209800710U CN201822232652.4U CN201822232652U CN209800710U CN 209800710 U CN209800710 U CN 209800710U CN 201822232652 U CN201822232652 U CN 201822232652U CN 209800710 U CN209800710 U CN 209800710U
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Abstract
The utility model provides a gear selecting and shifting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox, which comprises a gear selecting shaft, a gear selecting rocker arm, a spherical joint and a threaded vent plug, wherein the threaded vent plug is fastened and connected with a screw hole at one end of the gear selecting shaft through threads, and the gear selecting rocker arm is pressed and fixed on the gear selecting shaft through a fixing hole on the gear selecting rocker arm; the gear selecting shaft is provided with a vent hole, and a hollow channel arranged in the gear selecting shaft is respectively communicated with the vent hole and the screw hole; be equipped with the screw thread on the cock body of screw thread formula breather plug and inside is equipped with the air channel, is equipped with the gasket on the cock body and seals the air channel export, and the cock body top still is equipped with the cock cap, and the cock cap surrounds gasket and cock body upper portion, and is equipped with the spring between cock cap and the gasket, is clearance fit and reserves exhaust passage between cock body and the cock cap. The utility model discloses a select the baffle subassembly to have the function of shifting and ventilating concurrently, reduce spare part, easy to assemble and dismantlement, and can prevent that impurity such as external dust sewage from getting into the gearbox.
Description
Technical Field
The utility model belongs to the technical field of motor transmission, concretely relates to collect gearbox ventilates and select gear shift function in selection gear shaft subassembly of an organic whole.
background
In a gearbox parking system commonly used at present, a gear selecting shaft only has a gear selecting and shifting function, a hole needs to be additionally formed in a gearbox shell for realizing a ventilation function, and a hose and a ventilation plug are connected to realize ventilation. Although this structure can satisfy the function, it has the following disadvantages: firstly, the shell needs to be separately provided with holes, and the holes are machined, so that the manufacturing cost and the complexity of the shell are increased; and secondly, the vent plug needs to be connected with a hose, so that the number of parts is increased, the occupied space is large, the assembly complexity is increased, the manufacturing cost is also increased, and the market competitiveness of the product is reduced.
Chinese utility model patent CN202708017U discloses a derailleur air-breather includes: the gear-shifting cover is connected with a gear-shifting rocker arm, and the gear-shifting rocker arm is connected with a hollow gear-shifting shaft of the transmission. The hollow gear selecting and shifting shaft is provided with a gear selecting and shifting sleeve at the outer part and a vent groove at the tail end, a ventilation cavity is arranged between the hollow gear selecting and shifting shaft and the gear selecting and shifting sleeve, the ventilation cavity is communicated with the hollow gear selecting and shifting shaft, and the gear selecting and shifting sleeve is communicated with a bottom cavity of the gear selecting and shifting cover. The ventilation groove of the utility model is integrated in the ventilation mechanism of the transmission, the ventilation mechanism is not independently arranged, the use of parts is reduced, the process complexity is reduced, but the structure of the gear selecting and shifting sleeve and the gear selecting and shifting cover arranged in the patent is still more complex, the occupied space is larger, and the gear shifting rocker arm and the gear shifting shaft are connected by the elastic pin, so that the installation and the disassembly operation are inconvenient; and the ventilation duct both ends communicate with gear shift axle cavity and outside atmosphere respectively in this patent, and impurity such as external dust sewage enters into the gearbox from gear shift axle cavity easily.
Chinese utility model patent CN205479306U discloses a gearbox gear shifting rocker arm assembly with ventilation function, which comprises a gear shifting shaft head and a gear selecting and shifting shaft, wherein an inner hole for sleeving the gear selecting and shifting shaft is arranged in the gear shifting shaft head, a ventilation groove is arranged in the axial direction of the inner wall of the inner hole, and a pin hole is arranged in the radial direction of the inner hole; the gear selecting and shifting shaft is of a hollow structure, a pin hole is formed in one end of the gear selecting and shifting shaft, vent holes are formed in the radial direction of the gear selecting and shifting shaft, and one end, provided with the pin hole, of the gear selecting and shifting shaft is arranged in an inner cavity of the gear shifting shaft head and fixed in the gear shifting shaft head through a coil spring pin. The beneficial effects of the utility model are that with the gearbox function integration of ventilating on the rocking arm assembly of shifting, more traditional structure's breather plug, part quantity reduces, the cost is reduced, and has saved the space. But this utility model uses the elastic pin to connect shift spindle nose and gear shift axle also inconvenient installation and dismantlement operation to shift in the spindle nose air channel and outside atmosphere intercommunication in this patent, impurity such as external dust sewage enter into the gearbox in the air channel easily. In addition, the existing gear shifting mechanism also has the problem of inconvenient, quick and accurate gear shifting.
Disclosure of Invention
For overcoming prior art's is not enough, the utility model discloses aim at solving one of the prior art problem at least, provide a collection gearbox ventilates and select the function of shifting in the selection baffle axle subassembly of an organic whole, the utility model discloses a selection baffle axle subassembly has the function of ventilating and shifting concurrently, need not to set up the breather pipe in addition, reduces part quantity, reduces and makes and assembly cost to have good sealed effect, can prevent effectively that impurity such as external dust sewage from entering into the gearbox.
The utility model discloses a realize through following technical scheme: a gear selecting and shifting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox comprises a gear selecting shaft, a gear selecting rocker arm, a spherical joint and a threaded vent plug, wherein the gear selecting rocker arm is provided with a fixing hole; the gear selecting shaft is provided with a vent hole, and a hollow channel arranged in the gear selecting shaft is respectively communicated with the vent hole and the screw hole; the threaded vent plug comprises a plug cap, a spring, a sealing piece and a plug body, wherein a thread and a vent groove are formed in the plug body, the vent groove is sealed by the sealing piece arranged on the plug body, the plug cap is arranged above the plug body and surrounds the sealing piece and the upper portion of the plug body, the spring is arranged between the plug cap and the sealing piece, and an exhaust channel is reserved between the plug body and the plug cap in a clearance fit mode.
When the gearbox adopting the gear selecting shaft assembly of the utility model works, the internal air pressure is raised, oil gas firstly enters a hollow channel in the gear selecting shaft through the air vent on the gear selecting shaft and then enters the vent plug, the pressure of the oil gas pushes the sealing sheet and compresses the spring, the plug cap and the plug body are in clearance fit, an exhaust channel is reserved, and thus the exchange of the internal air and the external air of the gearbox can be realized; when the gearbox was out of work, the spring in the breather plug can compress tightly the gasket, can prevent effectively that impurity such as external dust sewage from getting into the gearbox to realize sealed function, the breather plug adopts threaded in addition, can conveniently compress tightly the selection fender rocking arm fast and fix on selecting to keep off epaxially, and need not use fixed spare parts such as spring catch, has reduced spare part, avoids the risk that spare part easily loses, also easy to assemble and dismantlement. The gear selecting shaft assembly of the utility model has both the gear selecting function and the ventilating function, reduces the number of the holes and the machining amount of the shell, and saves the manufacturing cost; by adopting the integrated vent plug, the vent pipe can be eliminated, the number of parts is reduced, the assembly complexity of the gearbox is reduced, the assembly process route of the gearbox is shortened, and the assembly efficiency is improved.
Preferably, the hollow channel and the vent hole are arranged on the upper half section of the gear selecting shaft, and a bushing and a radial oil seal are arranged on the outer side of the gear selecting shaft of the upper half section.
the gear selecting shaft assembly is simple in structure, the weight of the gearbox can be reduced by adopting a hollow shaft in the upper half section, the lightweight is realized, and the high strength is also ensured; the radial oil seal is arranged to ensure the sealing performance of the shell and prevent oil from leaking from the shell; the clearance is little between position and the casing that the air vent is located, and the casing can play the effect of keeping off oil to a certain extent, thereby the oil that the gearbox splashes is difficult to cause the oil leak inefficacy through this air vent outflow, has further promoted sealed reliability.
Preferably, the gear selecting shaft is provided with a rotor sensing piece, the rotor sensing piece is fixed on a groove of the gear selecting shaft through a rotor positioning pin and moves along with the rotation of the gear selecting shaft, and an angle sensor is arranged between the rotor sensing pieces and used for judging the difference of the areas of the rotor sensing pieces which sweep over the sensor and outputting different gear signals. This scheme can more swift accurate realization shift through set up angle sensor on selecting gear the axle.
Further preferably, the vent hole is a special-shaped hole, and the shape of the special-shaped hole is a gourd shape formed by overlapping two circles with different sizes; the rotor induction sheet penetrates through the vent hole. This scheme ventilation hole shape can be when guaranteeing to ventilate for the dysmorphism hole easy to assemble rotor response piece, and on the other hand rotor response piece also can block during the oil that splashes gets into the air vent, further avoids taking place the oil leak condition.
Preferably, the gear selecting shaft is further provided with a guide groove, and a guide bolt is arranged in the guide groove. The arrangement of the guide bolt prevents the gear selecting shaft from moving along the axial direction, and the accurate gear is ensured.
Preferably, the gear selecting shaft is arranged at a high point of the whole vehicle posture of the gearbox. The gear selecting shaft is designed at the high point position, so that the oil leakage condition can be prevented.
Compared with the prior art, the utility model has the advantages of it is following:
(1) The spring in the vent plug of the utility model can compress the sealing sheet, and can effectively prevent external impurities such as dust and sewage from entering the gearbox, thereby realizing the sealing function; the vent plug is threaded, so that the gear selecting rocker arm can be conveniently and quickly pressed and fixed on the gear selecting shaft without fixing parts such as a spring pin, the parts are reduced, the risk that the parts are easily lost is avoided, and the installation and the disassembly are convenient;
(2) The gear selecting shaft assembly of the utility model has both the gear selecting function and the ventilating function, reduces the number of the holes and the machining amount of the shell, and saves the manufacturing cost;
(3) The vent pipe does not need to be additionally installed, so that the number of parts is reduced, the assembly complexity of the gearbox is reduced, the assembly process route of the gearbox is shortened, and the assembly efficiency is improved;
(4) The structure of the gear selecting shaft assembly is simplified, the weight of the gearbox can be reduced by adopting a hollow shaft, the light weight is realized, and the high strength is also ensured;
(5) The radial oil seal is arranged to ensure the sealing performance of the shell, and oil leaks from the shell; the position that the air vent is located is little with the casing clearance, and the casing can play the effect of keeping off oil to a certain extent, thereby the oil that the gearbox splashes is difficult to cause the oil leak inefficacy through this air vent outflow, has further promoted sealed reliability.
(6) The gear selecting shaft is provided with the angle sensor, so that gear shifting can be realized more quickly and accurately;
(7) The gear selecting shaft is designed at a high point position to prevent oil leakage, the air hole is shaped into a special-shaped hole, so that the rotor induction sheet can be conveniently installed while ventilation is ensured, the rotor induction sheet can also prevent splashed oil from entering the ventilation hole, and the oil leakage is further prevented;
(8) The arrangement of the guide bolt can prevent the gear selecting shaft from moving along the axial direction, and the accurate gear is ensured.
Drawings
fig. 1 is a schematic perspective view of a gear selecting shaft assembly according to embodiment 1 of the present invention, which integrates functions of ventilation and gear selecting and shifting of a transmission.
Fig. 2 is a schematic top view structural diagram (with parts omitted) of a gear selecting and shifting assembly according to embodiment 1 of the present invention, which integrates functions of ventilation and gear selecting and shifting of a transmission.
Fig. 3 is a schematic view of a partial cross-sectional structure of a gear selecting shaft assembly according to embodiment 1 of the present invention, which integrates functions of ventilation and gear selecting and shifting of a transmission.
Fig. 4 is a schematic structural diagram of a vent plug in the gear selecting and shifting assembly according to embodiment 1 of the present invention.
Fig. 5 is a schematic cross-sectional structure view of a vent plug in the gear selecting and shifting assembly according to embodiment 1 of the present invention, which integrates functions of ventilation and gear selecting and shifting of the transmission, along the direction a-a in fig. 4.
In the figure: 1. a ball joint; 2. a gear selecting rocker arm; 3. a threaded vent plug; 301. a plug cap; 302. a spring; 303. sealing the sheet; 304. a plug body; 305. a vent channel; 4. radial oil seal; 5. a bushing; 6. a rotor positioning pin; 7. a rotor induction sheet; 8. a guide bolt; 9. selecting a gear shaft; 901. a hollow channel; 10. and (4) a vent hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1 to 5, a gear selecting shaft assembly integrating functions of ventilation and gear selecting and shifting of a transmission comprises a gear selecting shaft 9, a gear selecting rocker arm 2 and a threaded vent plug 3, wherein one end of the gear selecting rocker arm 2 is provided with a spherical joint 1, the other end of the gear selecting rocker arm is provided with a fixing hole, the threaded vent plug 3 is fixedly connected with a screw hole at one end of the gear selecting shaft 9 through threads, and meanwhile, the threaded vent plug 3 penetrates through the fixing hole in the gear selecting rocker arm 2 to tightly press and fix the gear selecting rocker arm 2 on the gear selecting shaft 9; the gear selecting shaft 9 is provided with a vent hole 10, and a hollow channel arranged in the gear selecting shaft 9 is respectively communicated with the vent hole 10 and the screw hole; the threaded vent plug 3 comprises a plug cap 301, a spring 302, a sealing piece 303 and a plug body 304, wherein a thread is arranged on the plug body 304, a vent groove 305 is formed in the plug body 304, the sealing piece 303 is arranged on the plug body 304 and seals the outlet of the vent groove 305, the plug cap 301 is further arranged above the plug body 304, the sealing piece 303 and the upper portion of the plug body 304 are surrounded by the plug cap 301, the spring 302 is arranged between the plug cap 301 and the sealing piece 303, and a vent channel is formed between the plug body 304 and the plug cap 301 in a clearance fit mode and reserved.
When the gearbox works, the internal air pressure is increased, oil gas firstly enters a hollow channel in the selected gear shaft through a vent hole on the selected gear shaft and then enters a vent plug, the pressure of the oil gas pushes open a sealing sheet and compresses a spring, a clearance fit is formed between a plug cap and a plug body, and an exhaust channel is reserved, so that the exchange of the internal air and the external air of the gearbox can be realized; when the gearbox was out of work, the spring in the breather plug can compress tightly the gasket, can prevent effectively that impurity such as external dust sewage from getting into the gearbox to realize sealed function, the breather plug adopts threaded in addition, can conveniently compress tightly the selection fender rocking arm fast and fix on selecting to keep off epaxially, and need not use fixed spare parts such as spring catch, has reduced spare part, avoids the risk that spare part easily loses, also easy to assemble and dismantlement.
Preferably, the hollow channel 901 and the vent hole 10 are arranged on the upper half section of the gear selecting shaft 9, and the outer side of the gear selecting shaft 9 of the upper half section is provided with the bushing 5 and the radial oil seal 4. The upper half section adopts a hollow shaft, so that the weight of the gearbox can be reduced, the light weight is realized, and the high strength is ensured; the radial oil seal is arranged to ensure the sealing performance of the gear selecting shaft and the clutch shell and prevent oil from leaking from the shell of the clutch; the clearance is little between position and the casing that the air vent is located, and the casing can play the effect of keeping off oil to a certain extent, thereby the oil that the gearbox splashes is difficult to cause the oil leak inefficacy through this air vent outflow, has further promoted sealed reliability.
and a guide groove is also formed in the gear selecting shaft 9, and a guide bolt 8 is arranged in the guide groove. The arrangement of the guide bolt can prevent the axial sliding of the gear selecting shaft, and ensure the accurate gear.
select to keep off and be equipped with rotor response piece 7 on the axle 9, rotor response piece 7 passes through rotor locating pin 6 to be fixed on selecting the recess that keeps off axle 9 and along with selecting the rotation and the motion of keeping off axle 9, is equipped with angle sensor between the rotor response piece 7 and is used for judging the difference of the area that the rotor response piece sweeps over the sensor and exports different fender position signals, can more swiftly accurate realization shift.
The gear selecting shaft 9 is designed and arranged at a high point position of the whole posture of the gearbox, so that the oil leakage condition can be prevented. The vent hole 10 is a special-shaped hole, and the axial section of the special-shaped hole is in a gourd shape formed by overlapping two circles with different sizes; the rotor induction sheet 7 passes through the ventilation hole 10. The rotor response piece can be installed to the dysmorphism hole when guaranteeing to ventilate, and on the other hand rotor response piece also can block during the oil that splashes gets into the air vent, further prevents to avoid taking place the oil leak condition.
In summary, the selecting and gear shifting shaft assembly of the utility model has the functions of ventilation and gear shifting, reduces the number of the openings of the shell and the machining amount, and saves the manufacturing cost; parts such as a vent pipe and a spring pin can be avoided, the assembly process route of the gearbox is shortened, the assembly efficiency is improved, the quick disassembly is convenient, and the oil leakage can be effectively prevented while impurities such as external dust and sewage are prevented from entering the gearbox; but also have the advantage that swift accurate the shifting, improve vehicle security performance in addition. The utility model discloses a select the baffle subassembly to promote the product integration level, improve the market competition of gearbox.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A gear selecting and shifting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox comprises a gear selecting shaft, a gear selecting rocker arm and a spherical joint, and is characterized by further comprising a threaded vent plug, wherein a fixing hole is formed in the gear selecting rocker arm, the threaded vent plug is fixedly connected with a screw hole in one end of the gear selecting shaft through threads, and meanwhile, the threaded vent plug penetrates through the fixing hole in the gear selecting rocker arm to tightly press and fix the gear selecting rocker arm on the gear selecting shaft; the gear selecting shaft is provided with a vent hole, and a hollow channel arranged in the gear selecting shaft is respectively communicated with the vent hole and the screw hole; the threaded vent plug comprises a plug cap, a spring, a sealing piece and a plug body, wherein a thread and a vent groove are formed in the plug body, the vent groove is sealed by the sealing piece arranged on the plug body, the plug cap is arranged above the plug body and surrounds the sealing piece and the upper portion of the plug body, the spring is arranged between the plug cap and the sealing piece, and an exhaust channel is reserved between the plug body and the plug cap in a clearance fit mode.
2. The gear selecting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox as claimed in claim 1, wherein the hollow channel and the ventilation hole are arranged on the upper half section of the gear selecting shaft, and a bushing and a radial oil seal are arranged on the outer side of the gear selecting shaft of the upper half section.
3. The gear selecting and shifting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox according to claim 1, wherein a rotor sensing piece is arranged on the gear selecting shaft, the rotor sensing piece is fixed on a groove of the gear selecting shaft through a rotor positioning pin and moves along with rotation of the gear selecting shaft, and an angle sensor is arranged between the rotor sensing pieces and used for judging different areas of the sensor swept by the rotor sensing piece and outputting different gear signals.
4. the gear selecting and shifting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox according to claim 3, wherein the ventilation hole is a special-shaped hole, and the shape of the special-shaped hole is a gourd shape formed by overlapping two circles with different sizes; the rotor induction sheet penetrates through the vent hole.
5. The gear selecting shaft assembly integrating functions of ventilation and gear selecting and shifting of a gearbox as claimed in any one of claims 1 to 4, wherein a guide groove is further formed in the gear selecting shaft, and a guide bolt is arranged in the guide groove.
6. The gear selecting shaft assembly integrating functions of ventilation and gear selecting and shifting of the gearbox as claimed in any one of claims 1 to 4, wherein the gear selecting shaft is designed to be arranged at a high position of a whole vehicle posture of the gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822232652.4U CN209800710U (en) | 2018-12-28 | 2018-12-28 | Gear selecting and shifting assembly integrating functions of ventilation and gear selecting and shifting of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822232652.4U CN209800710U (en) | 2018-12-28 | 2018-12-28 | Gear selecting and shifting assembly integrating functions of ventilation and gear selecting and shifting of gearbox |
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| Publication Number | Publication Date |
|---|---|
| CN209800710U true CN209800710U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822232652.4U Active CN209800710U (en) | 2018-12-28 | 2018-12-28 | Gear selecting and shifting assembly integrating functions of ventilation and gear selecting and shifting of gearbox |
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| CN (1) | CN209800710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719602A (en) * | 2021-07-13 | 2021-11-30 | 东风汽车集团股份有限公司 | Gearbox air breather and gearbox |
-
2018
- 2018-12-28 CN CN201822232652.4U patent/CN209800710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719602A (en) * | 2021-07-13 | 2021-11-30 | 东风汽车集团股份有限公司 | Gearbox air breather and gearbox |
| CN113719602B (en) * | 2021-07-13 | 2024-01-16 | 东风汽车集团股份有限公司 | Gearbox ventilation device and gearbox |
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Address after: 430000 no.239 houguanhu Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Dongfeng Dingxin Power System Technology Co.,Ltd. Address before: 430000 no.239 houguanhu Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: DONGFENG GETRAG TRANSMISSION Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230619 Address after: 430000 No. 339 Zhuanyang Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Zhixin Technology Co.,Ltd. Address before: 430000 no.239 houguanhu Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: Dongfeng Dingxin Power System Technology Co.,Ltd. |