CN216200386U - Forced lubricating device for multi-gear transmission - Google Patents
Forced lubricating device for multi-gear transmission Download PDFInfo
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- CN216200386U CN216200386U CN202122299200.XU CN202122299200U CN216200386U CN 216200386 U CN216200386 U CN 216200386U CN 202122299200 U CN202122299200 U CN 202122299200U CN 216200386 U CN216200386 U CN 216200386U
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Abstract
The utility model discloses a forced lubricating device of a multi-gear transmission, belonging to the field of transmissions.A lubricating oil pump conveys lubricating oil in a transmission shell to an upper cover shell through an oil pipe under the action of an oil pump driving wheel, and the lubricating oil reaches the upper cover shell and is divided into a front path and a rear path: the forward path leads to the clutch shell through lubricating points such as a middle shaft gear pair and the like, and lubricates a middle shaft front bearing and a right upper middle shaft gear pair; the backward path is communicated with a lubricating oil path of the rear cover shell at the joint surface of the main box and the auxiliary box through the transmission shell, and is communicated with the rear cover shell through lubricating points such as an auxiliary box gear, a synchronizer friction pair and the like to lubricate a rear end bearing of an upper intermediate shaft of the auxiliary box, the auxiliary box gear and the synchronizer friction pair. The device has compact structure and convenient processing, the adopted upper cover shell has better universality, the device can be exchanged with the common upper cover shell only by plugging a plurality of small holes, the use is flexible, and the device has stronger economical efficiency.
Description
Technical Field
The utility model belongs to the field of transmissions and relates to a forced lubricating device for a multi-gear transmission.
Background
At present, a heavy-duty dump truck generally uses a multi-gear transmission, and in order to realize the function of multi-pull running, a transmission assembly with a wide speed ratio range and large torque is required to be matched. Under the common conditions, the heavy-duty dump truck has complex road conditions and bad working conditions in the driving process, which puts higher requirements on a lubricating system of a transmission assembly.
The existing multi-gear transmission usually adopts splash lubrication, lubricating oil is splashed to corresponding parts through the work of a power assembly, key parts (such as a bearing, an upper intermediate shaft gear pair with a double-intermediate shaft structure and the like) with a higher oil pool surface are often not sufficiently lubricated, when a vehicle climbs a slope or works under a severe working condition, the parts which are not lubricated are excessively worn, so that the parts such as an internal gear, a bearing, a synchronizer and the like of the transmission can be possibly caused to lose efficacy, even the whole box is ablated, the transmission cannot normally work, and the economical efficiency and the driving safety of the vehicle are seriously influenced. The transmission assembly with forced lubrication usually adopts an external or internal oil pipe in structural arrangement, the structural arrangement is usually complex, the part processing manufacturability is poor, and corresponding lubrication points need to be reduced if the transmission assembly is limited by space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of complex structural arrangement and poor part processing manufacturability of a multi-gear transmission in the prior art, and provides a forced lubricating device of the multi-gear transmission.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
a multi-gear transmission forced lubrication device comprises a transmission shell, wherein an upper cover shell and a rear cover shell are arranged on the transmission shell; the forced lubricating device comprises an oil distribution plate, the oil distribution plate is arranged on the upper cover shell, a lubricating oil pump is arranged in the transmission shell, and an oil pump driving wheel is arranged on the lubricating oil pump;
the oil distribution plate is provided with an oil hole;
an oil groove is precast on the upper cover shell, the oil groove is vertically arranged on the upper cover shell, the lower end of the oil groove faces the interior of the transmission assembly, and the oil groove is connected with an oil distribution plate;
when the transmission is in operation, the lubricating oil pump conveys lubricating oil in the transmission shell to the upper cover shell through the transmission shell through the oil pipe under the action of the oil pump driving wheel.
Preferably, the oil distribution plate is provided with a lubricating point, and the oil hole is opened at the lubricating point.
Preferably, there are at least 10 lubrication points.
Preferably, the oil distribution plate is fixed to the upper cover housing by blind rivets.
Preferably, a sealing washer is mounted between the oil distribution plate and the blind rivet.
Preferably, a layer of rubber is evenly vulcanized on the connecting surface of the oil distribution plate and the upper cover shell.
Preferably, the rubber is a fluoroelastomer.
Preferably, the middle part of the oil distribution plate protrudes into the oil groove of the upper cover shell.
Preferably, the lubricating oil pump is an automatic overflow oil pump.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model discloses a forced lubricating device for a multi-gear transmission, which mainly comprises a transmission shell, an upper cover shell, an oil distribution plate, a self-plugging rivet for connecting the oil distribution plate and the upper cover shell together, a sealing washer and the like. Simultaneously, still be provided with the lubricating oil pump in derailleur casing rear end inboard, when certain fender position was hung in derailleur work, the lubricating oil pump passed through oil pipe with the inside lubricating oil of derailleur casing under oil pump drive wheel's effect and carried the upper cover casing via the derailleur casing, two tunnel around lubricating oil reachs the upper cover casing and divide into: the forward path is led to the clutch shell through lubricating points such as a main box upper right intermediate shaft gear pair and the like, and a front bearing of the upper right intermediate shaft and the upper right intermediate shaft gear pair are lubricated; the backward path is communicated with a lubricating oil path of the rear cover shell at the joint surface of the main box and the auxiliary box through the transmission shell, and is communicated with the rear cover shell through lubricating points such as an auxiliary box gear, a synchronizer friction pair and the like to lubricate a rear end bearing of an upper intermediate shaft of the auxiliary box, the auxiliary box gear and the synchronizer friction pair. The device has compact structure and convenient processing, the adopted upper cover shell has better universality, when the transmission can meet the design requirement through splash lubrication, the device can be exchanged with the common upper cover shell only by plugging a plurality of small holes, and the device is flexible to use and has stronger economical efficiency.
Furthermore, the lubricating points are provided with a plurality of parts, so that the whole box is fully lubricated, the working condition of the transmission is effectively improved, the complex working condition can be adapted, and the service life of the transmission is prolonged.
Furthermore, the upper cover shell is pre-cast with oil groove features, and an enclosed oil path space is formed by connecting oil distribution plates. Oil grooves are precast in the upper cover shell and are connected through an oil distribution plate to form a closed oil path space, oil holes are machined in the transmission shell and the rear cover shell, and the oil grooves are additionally arranged on the clutch shell to lubricate key parts in the transmission assembly, so that the working condition of the transmission is effectively improved; according to the technical scheme, the scheme that the outer side of the upper cover shell is protruded to drill the long oil passage hole to form the oil passage, which is commonly used, is omitted, the appearance is more attractive, the structure is compact, and the whole vehicle arrangement is more facilitated. Meanwhile, the problem that the drill bit is frequently broken due to the fact that a hole with a larger long diameter is machined can be avoided, and machining cost is low.
Furthermore, the oil distribution plate is provided with oil holes at corresponding lubricating points, and lubricating oil is sprayed to the corresponding lubricating points when passing through. The oil distribution plate structure is convenient to process, small in occupied space and good in rigidity. The oil distribution plate adopted by the technology has the advantages that the middle part of the oil distribution plate protrudes inwards, so that the rigidity of the oil distribution plate is improved, the internal space of the box body is saved, the arrangement of other parts is facilitated, and the height of the whole box is reduced. Meanwhile, the oil distribution plate is a stamping part, so that the material cost is low and the processing is convenient.
Furthermore, a layer of rubber is evenly vulcanized on the combination surface of the oil distribution plate and the upper cover shell, and the self-plugging rivet is matched with the sealing washer to realize fixation and sealing. The corresponding lubricating points of the transmission shell and the rear cover shell are respectively provided with an oil hole, and the clutch shell is pre-cast with oil groove characteristics.
Drawings
FIG. 1 is a structural view of an oil outlet of an oil pump to a main oil inlet of an upper cover shell;
FIG. 2 is a view showing the oil path direction of the auxiliary tank;
FIG. 3 is a main oil path direction diagram of the forced lubrication structure;
FIG. 4 is a diagram of an upper cover housing with a pre-cast oil sump structure;
fig. 5 is a partial structure view of the connection between the oil distribution plate and the upper cover shell.
Wherein, 1-a transmission housing; 2-oil pipe; 3-covering the shell; 4-rear cover shell; 5-oil blocking; 6-upper right countershaft gear; 7-a clutch housing; 8-a main shaft gear; 9-a synchronizer; 10-auxiliary box gear; 11-blind rivets; 12-oil distribution plate; 13-sealing gasket.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
example 1
A multi-gear transmission forced lubrication device comprises a transmission shell 1, wherein an upper cover shell 3 and a rear cover shell 4 are arranged on the transmission shell 1; the forced lubricating device comprises an oil distribution plate 12, wherein the oil distribution plate 12 is arranged on the upper cover shell 3, a lubricating oil pump is arranged in the transmission shell 1, and an oil pump driving wheel is arranged on the lubricating oil pump; the oil distribution plate 12 is provided with oil holes; an oil groove is precast on the upper cover shell 3, the oil groove is vertically arranged on the upper cover shell 3, the lower end of the oil groove faces the interior of the transmission assembly, and the oil groove is connected with the oil distribution plate 12.
Example 2
As shown in fig. 1, when the transmission is engaged in a certain gear, the lubricating oil pump delivers the lubricating oil inside the transmission case 1 to the upper cover case 3 through the transmission case 1 via the oil pipe 2 under the action of the oil pump driving wheel. As shown in fig. 2 and 3, the lubricating oil reaches the upper cover housing 3 and then is divided into two paths: the forward path is led to an oil groove processed on a clutch shell 7 through lubricating points such as a main box upper right intermediate shaft gear 6 and the like, and a front bearing of the upper right intermediate shaft and the upper right intermediate shaft gear 6 are lubricated; the backward path is communicated with a lubricating oil path of the rear cover shell 4 at the joint surface of the main box and the auxiliary box through the transmission shell 1, and is communicated to the rear cover shell 4 through lubricating points such as an auxiliary box gear 10, a synchronizer 9 friction pair and the like, so as to lubricate a rear end bearing of an upper left middle shaft of the auxiliary box, the auxiliary box gear 10 and the synchronizer 9 friction pair.
Example 3
The contents are the same as those of example 2 except for the following.
As shown in fig. 4 and 5, an oil groove is pre-cast in the upper cover housing 3, and an oil distribution plate 12 is connected to form a closed oil passage space. The oil distribution plate 12 is provided with oil holes at the lubrication points of a right upper intermediate shaft front bearing, a reverse gear intermediate wheel, a main box right upper intermediate shaft gear pair and the like, and lubricating oil is sprayed to the corresponding gear pair when passing through. Meanwhile, a layer of rubber is evenly vulcanized on the joint surface of the oil distribution plate 12 and the upper cover shell 3, and the rivet 11 is matched with the sealing washer 13 to realize fixation and sealing.
Example 4
The contents are the same as those of example 2 except for the following.
As shown in fig. 2, in order to introduce lubricating oil into the sub-tank to lubricate the friction pair of the sub-tank gear 10 and the synchronizer 9, an oil inlet on the transmission shell 1 communicates an upper cover shell oil path with the sub-tank oil path, and the oil path of the sub-tank part of the transmission shell 1 is relatively short, so that an oil path hole is processed in a mode of 'pre-casting boss + post drilling', and an oil lubricating hole is formed at the top of the mounting position of the sub-tank gear and the synchronizer. In order to perform forced lubrication on the rear end bearing of the upper left middle shaft of the auxiliary box, the rear cover shell 4 is similar to the auxiliary box structure of the transmission shell 1, an oil path is processed in a mode of 'pre-casting a boss + later-stage drilling', and a lubricating oil hole is formed in the top of the mounting position of the rear end bearing of the upper left middle shaft of the auxiliary box. In all the above, the oil plug 5 is used to plug the holes drilled on the outer side of the transmission case 1 and the rear cover case 4 for machining the lubricating oil holes, so as to prevent the lubricating oil from leaking.
It should be noted that the rivets used in the above embodiments are blind rivets. The upper cover shell adopted by the technology has better universality, when the transmission can meet the design requirement through splash lubrication, the transmission can be exchanged with the common upper cover shell only by plugging a plurality of small holes, and the transmission is flexible to use and has higher economical efficiency. A layer of rubber is uniformly vulcanized on the surface of the joint surface of the oil distribution plate and the upper cover shell, and the self-plugging rivet is matched with the sealing washer to realize the fixing and sealing functions, so that the problem of lubricating oil leakage caused by vibration or high-speed running in the working process of the transmission assembly is effectively solved. The lubricating oil pump has an overflow function, and can automatically release pressure when the pressure in an oil way exceeds rated pressure, so that the risk of oil leakage of a transmission assembly caused by overlarge pressure is avoided. The oil distribution plate is designed to be of a structure with the middle part protruding inwards, so that the rigidity is improved, the internal space of the box body is saved, and the arrangement of other parts is facilitated. The vulcanized rubber on the oil distribution plate is made of fluororubber, so that the high-temperature requirement of the transmission assembly can be met.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. A multi-gear transmission forced lubrication device is characterized in that the multi-gear transmission comprises a transmission shell (1), wherein an upper cover shell (3) and a rear cover shell (4) are arranged on the transmission shell (1); the forced lubricating device comprises an oil distribution plate (12), wherein the oil distribution plate (12) is installed on the upper cover shell (3), a lubricating oil pump is installed in the transmission shell (1), and an oil pump driving wheel is installed on the lubricating oil pump;
the oil distribution plate (12) is provided with oil holes;
an oil groove is precast on the upper cover shell (3), the oil groove is vertically arranged on the upper cover shell (3), the lower end of the oil groove faces the interior of the transmission assembly, and the oil groove is connected with an oil distribution plate (12);
when the transmission is in operation, the lubricating oil pump conveys lubricating oil in the transmission shell (1) to the upper cover shell (3) through the transmission shell (1) through the oil pipe under the action of the oil pump driving wheel.
2. A multiple speed transmission positive lubrication device according to claim 1, wherein the oil distribution plate (12) is provided with a lubrication point, and the oil hole is opened at the lubrication point.
3. Forced lubrication device for multispeed transmissions according to claim 1, characterised in that there are at least 10 lubrication points.
4. Forced lubrication device for multispeed transmissions according to claim 1, characterised in that the oil distribution plate (12) is fixed to the upper cover casing (3) by blind rivets (11).
5. Forced lubrication device for multispeed transmissions according to claim 1, characterised in that a sealing gasket is mounted between the oil distribution plate (12) and the blind rivet (11).
6. A multiple speed transmission forced lubrication device according to claim 1, characterised in that a layer of rubber is uniformly vulcanised on the connecting surface of the oil distribution plate (12) and the upper cover housing (3).
7. The positive lubrication device for a multispeed transmission according to claim 6, wherein the rubber is a fluororubber.
8. The positive lubrication device for a multispeed transmission according to claim 1, wherein the middle portion of the oil distribution plate (12) protrudes into the oil sump of the upper cover case (3).
9. A multiple speed transmission positive lubrication device as claimed in claim 1, wherein the lubricating oil pump is an automatic relief oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122299200.XU CN216200386U (en) | 2021-09-22 | 2021-09-22 | Forced lubricating device for multi-gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122299200.XU CN216200386U (en) | 2021-09-22 | 2021-09-22 | Forced lubricating device for multi-gear transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200386U true CN216200386U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122299200.XU Active CN216200386U (en) | 2021-09-22 | 2021-09-22 | Forced lubricating device for multi-gear transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200386U (en) |
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2021
- 2021-09-22 CN CN202122299200.XU patent/CN216200386U/en active Active
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