CN108944270B

CN108944270B - Automobile rear axle

Info

Publication number: CN108944270B
Application number: CN201810878950.2A
Authority: CN
Inventors: 李支峰
Original assignee: Anhui Tianyu Automobile Parts Manufacturing Co ltd
Current assignee: Anhui Tianyu Automobile Parts Manufacturing Co ltd
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2021-08-10
Anticipated expiration: 2038-08-03
Also published as: CN108944270A

Abstract

The invention discloses an automobile rear axle, which comprises a rear axle shell, wherein a connecting transverse plate is fixedly connected to the front surface of a driving rotating shaft in the inner cavity of the rear axle shell, a cooling fan is fixedly connected to the symmetrical position of one side, close to a first helical gear, of the connecting transverse plate, a cooling air port is fixedly connected to one side, far away from the connecting transverse plate, of the cooling fan, a compression-resisting device is fixedly connected to the position, close to the front surface, of the top of the inner cavity of the rear axle shell, a lubricating device is fixedly connected to one side, far away from the rear axle shell, of the compression-resisting device, buffer devices are fixedly connected to the symmetrical positions, far away from the compression-resisting device, of the outer walls of the two sides of the lubricating device, and a recovery device is fixedly connected to the middle position of the back surface of the inner cavity of the rear axle shell. Make the device can guarantee that it has lubricated effect for a long time to can carry out effectual heat dissipation, avoid differential mechanism surface to produce thermal fatigue, guarantee that equipment is not damaged, guarantee automobile life and personal safety.

Description

Automobile rear axle

Technical Field

The invention relates to the technical field of automobile rear axles, in particular to an automobile rear axle.

Background

The automobile rear axle is the rear axle of the automobile. In the case of a front-axle driven vehicle, the rear axle is only a trailing axle and only plays a role of load bearing. A transfer case is also typically provided in front of the rear axle. The front axle and the rear axle are parts of a front wheel shaft and a rear wheel shaft, the front axle comprises a shock-absorbing spring, a steering gear, a balance shaft and the like, and the rear axle further comprises a driving shaft, a transmission gear and the like. The rear part of the multi-axle truck is also provided with a driving rear axle and a non-driving rear axle, the non-driving rear axle is not connected with a transmission shaft and does not belong to the part of a driving wheel, and a heavy truck and a traction vehicle head with more than 3 axles generally exist. The suspension of the bridge is divided into an integral type and a disconnected type. The integral bridge is provided with a non-independent suspension, such as a plate spring suspension, and a disconnected independent suspension, such as a Macpherson suspension. The big bulge at the center of the rear axle is only available when the rear axle is a drive axle, and a reduction gear and a differential mechanism are arranged in the big bulge, so that the big bulge is needed to be provided, and the rear axle is a follow-up axle which is not available generally. The existing automobile rear axle basically only plays a role in following and supporting, and normal running of the automobile is guaranteed. However, most of the existing automobile rear axles are not detected and maintained for a long time in the using process, so that the inner wall differential mechanism is easy to lack of lubricant, the abrasion is serious, the heat is easy to gather in the long-time driving process, the surface of the differential mechanism is changed, the differential mechanism cannot normally work, and the automobile and the personal safety are damaged.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automobile rear axle, which solves the problems that the existing automobile rear axle is not detected and maintained for a long time in the using process, so that an inner wall differential mechanism is easy to lack a lubricant, the abrasion is serious, the heat is easy to gather in the long-time driving process, the surface of the differential mechanism is changed, the differential mechanism cannot normally work, and the automobile and the personal safety are damaged.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an automobile rear axle comprises a rear axle shell, wherein a driving rotating shaft is rotatably connected at the middle position of the bottom of an inner cavity of the rear axle shell, one end of the driving rotating shaft, which is positioned in the inner cavity of the rear axle shell, is fixedly connected with a first helical gear, the right side of the outer surface of the first helical gear is in meshing transmission with a second helical gear, one side of the second helical gear, which is far away from the first helical gear, is fixedly connected with a fixed connecting piece, the inner surface of the fixed connecting piece is fixedly connected with a first driven rotating shaft, one end of the first driven rotating shaft, which is close to the second helical gear, is fixedly connected with a third helical gear, one side of the third helical gear, which is far away from the first driven rotating shaft, is in meshing transmission with a transmission helical gear, one side of the transmission helical gear, which is far away from the third helical gear, is in meshing transmission with a fourth helical gear, the inner surface of the fourth helical gear is fixedly connected with a second driven rotating shaft, and the inner cavity of the rear axle shell, which is positioned in the front of the driving rotating shaft, is fixedly connected with a connecting transverse plate, a cooling fan is fixedly connected at the symmetrical position of one side of the connecting transverse plate close to the first helical gear, a cooling air port is fixedly connected at one side of the cooling fan far away from the connecting transverse plate, a compression-resistant device is fixedly connected at the position of the top of the inner cavity of the rear axle shell close to the front side, a lubricating device is fixedly connected at one side of the compression-resistant device far away from the rear axle shell, a buffer device is fixedly connected at the symmetrical position of one side of the outer walls at the two sides of the lubricating device far away from the compression-resistant device, a recovery device is fixedly connected at the middle position of the back side of the inner cavity of the rear axle shell, the lubricating device comprises a lubricating liquid box, a fixed rotating sleeve is fixedly connected at the middle position of the bottom of the inner cavity of the lubricating liquid box, a fixed rotating shaft is slidably connected at the inner surface of the fixed rotating sleeve, a lubricating gear is fixedly connected at one side of the fixed rotating shaft far away from the fixed rotating sleeve, and an inlet is arranged at the top of one side of the front side of the lubricating liquid box close to the fourth helical gear, the outer surface of the fixed rotating sleeve is provided with a flowing through hole, the outer surface of the fixed rotating shaft is provided with a branch flow through hole, the middle position of the fixed rotating shaft is provided with a main flow through hole, one side, away from the fixed rotating sleeve, of the branch flow through hole is communicated with the main flow through hole, one side, away from the fixed rotating shaft, of the lubricating gear is provided with an overflow hole, and one side, close to the fixed rotating sleeve, of the overflow hole is communicated with the main flow through hole.

Preferably, the resistance to compression device includes the resistance to compression connecting plate, lubricating arrangement's a side symmetrical position fixedly connected with connecting block is kept away from to the resistance to compression connecting plate, one side fixedly connected with resistance to compression arc that the connecting block is close to each other, one side that lubricating arrangement was kept away from to the resistance to compression connecting plate and be located resistance to compression arc intermediate position fixedly connected with resistance to compression spring.

Preferably, buffer includes the intermediate junction post, the equal fixedly connected with damping sleeve in intermediate junction post both ends, damping sleeve internal surface sliding connection has the shock attenuation loop bar, one side fixedly connected with adapter sleeve of damping sleeve is kept away from to the shock attenuation loop bar, damping sleeve surface cover is equipped with damping spring, one side fixedly connected with annular connecting piece of shock attenuation loop bar is kept away from to adapter sleeve.

Preferably, the recovery device comprises a recovery box, the top of the outer surface of the recovery box is fixedly connected with a fixing piece, the middle and upper position of the inner surface of the recovery box is fixedly connected with a filter screen, and the bottom of one side of the outer wall of the recovery box is fixedly connected with a display tube.

Preferably, the driving rotating shaft penetrates through the rear axle shell and extends to the outer surface of the rear axle shell, the rear axle shell is positioned on two sides of the driving rotating shaft and is provided with air holes, and one side of the air holes positioned in the inner cavity of the rear axle shell is communicated with the cooling fan through a hose.

Preferably, first driven rotating shaft and second driven rotating shaft all run through the rear axle shell and extend to rear axle shell outer wall, first driven rotating shaft and second driven rotating shaft are located the one end fixedly connected with wheel hub connecting piece of rear axle shell outer wall.

Preferably, one side of the buffer device, which is far away from the lubricating device, is fixedly connected with the rear axle housing, and one side of the lubricating device, which is close to the third helical gear, is in meshing transmission with the second helical gear.

Preferably, an oil filling port is formed in the top of the front face of the rear axle shell, the back face of the oil filling port is communicated with a lubricating device through a hose, and a sealing cover is in threaded connection with the inner surface of the oil filling port.

(III) advantageous effects

The invention provides an automobile rear axle which has the following beneficial effects:

according to the invention, the connecting transverse plate is fixedly connected to the front side of the driving rotating shaft through the inner cavity of the rear axle shell, the cooling fan is fixedly connected to the symmetrical position of one side of the connecting transverse plate, which is close to the first bevel gear, the cooling fan is fixedly connected to the side, which is far away from the connecting transverse plate, of the cooling fan, the compression-resistant device is fixedly connected to the position, which is close to the front side, of the top of the inner cavity of the rear axle shell, the lubrication device is fixedly connected to the side, which is far away from the rear axle shell, of the compression-resistant device, the buffer devices are fixedly connected to the symmetrical positions, which are far away from the compression-resistant device, of the outer walls at the two sides of the lubrication device, and the recovery device is fixedly connected to the middle position of the back side of the inner cavity of the rear axle shell, so that the device can guarantee the lubricating effect for a long time, can effectively dissipate heat, avoid thermal fatigue on the surface of a differential mechanism, guarantee that equipment is not damaged, and guarantee the service life of an automobile and the safety of a person.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the dehumidification cooling device according to the present invention;

FIG. 4 is a schematic view of the dehumidification cooling device according to the present invention;

FIG. 5 is a schematic view of a dehumidification cooling device according to the present invention.

In the figure: 1-rear axle housing, 2-driving rotating shaft, 3-first helical gear, 4-second helical gear, 5-fixed connecting piece, 6-first driven rotating shaft, 7-third helical gear, 8-transmission helical gear, 9-fourth helical gear, 10-second driven rotating shaft, 11-connecting transverse plate, 12-cooling fan, 13-cooling air port, 14-compression-resistant device, 141-compression-resistant connecting plate, 142-connecting block, 143-compression-resistant arc plate, 144-compression-resistant spring, 15-lubricating device, 151-lubricating liquid tank, 152-fixed rotating sleeve, 153-fixed rotating shaft, 154-lubricating gear, 155-branch through hole, 156-main circulating hole, 157-inlet, 16-buffer device, 161-intermediate connecting column, 162-a damping sleeve, 163-a damping sleeve rod, 164-a fixed connecting sleeve, 165-a damping spring, 166-an annular connecting piece, 17-a recovery device, 171-a recovery box, 172-a fixing piece, 173-a filter screen, 174-a display tube, 18-a vent hole, 19-a hub connecting piece, 20-an oil filling port and 21-a sealing cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automobile rear axle comprises a rear axle shell 1, a driving rotating shaft 2 is rotatably connected at the middle position of the bottom of an inner cavity of the rear axle shell 1, one end of the driving rotating shaft 2, which is positioned in the inner cavity of the rear axle shell 1, is fixedly connected with a first helical gear 3, a second helical gear 4 is in meshing transmission with the right side of the outer surface of the first helical gear 3, one side of the second helical gear 4, which is far away from the first helical gear 3, is fixedly connected with a fixed connecting piece 5, the inner surface of the fixed connecting piece 5 is fixedly connected with a first driven rotating shaft 6, one end of the first driven rotating shaft 6, which is close to the second helical gear 4, is fixedly connected with a third helical gear 7, one side of the third helical gear 7, which is far away from the first driven rotating shaft 6, is in meshing transmission with a transmission helical gear 8, one side of the transmission helical gear 8, which is far away from the third helical gear 7, is in meshing transmission with a fourth helical gear 9, the inner surface of the fourth helical gear 9 is fixedly connected with a second driven rotating shaft 10, and the inner cavity of the rear axle shell 1 is positioned in the front of the driving rotating shaft 2 and is fixedly connected with a transverse plate 11, a cooling fan 12 is fixedly connected at the symmetrical position of one side of the connecting transverse plate 11 close to the first bevel gear 3, a cooling air port 13 is fixedly connected at one side of the cooling fan 12 far away from the connecting transverse plate 11, a compression-resistant device 14 is fixedly connected at the position of the top part of the inner cavity of the rear axle housing 1 close to the front side, the compression-resistant device 14 comprises a compression-resistant connecting plate 141, a connecting block 142 is fixedly connected at the symmetrical position of one side of the compression-resistant connecting plate 141 far away from the lubricating device 15, a compression-resistant arc 143 is fixedly connected at one side of the compression-resistant connecting plate 141 far away from the lubricating device 15, a compression-resistant spring 144 is fixedly connected at the middle position of the compression-resistant arc 143, a lubricating device 15 is fixedly connected at one side of the compression-resistant device 14 far away from the rear axle housing 1, the lubricating device 15 comprises a lubricating liquid box 151, a fixed rotating sleeve 152 is fixedly connected at the middle position of the bottom of the inner cavity of the lubricating liquid box 151, and a fixed rotating sleeve 152 is connected with a fixed rotating shaft 153 in a sliding manner, a lubricating gear 154 is fixedly connected to one side of the fixed rotating shaft 153 far away from the fixed rotating sleeve 152, an inlet 157 is arranged at the top of one side of the front surface of the lubricating liquid tank 151 close to the fourth helical gear 9, a flow through hole is arranged on the outer surface of the fixed rotating sleeve 152, a branch flow through hole 155 is arranged on the outer surface of the fixed rotating shaft 153, a main flow hole 156 is arranged at the middle position of the fixed rotating shaft 153, one side of the branch flow through hole 155 far away from the fixed rotating sleeve 152 is communicated with the main flow hole 156, an overflow hole is arranged at one side of the lubricating gear 154 far away from the fixed rotating shaft 153, one side of the overflow hole close to the fixed rotating sleeve 152 is communicated with the main flow hole 156, buffer devices 16 are fixedly connected to symmetrical positions of one sides of outer walls at two sides of the lubricating device 15 far away from the pressure-resisting device 14, each buffer device 16 comprises a middle connecting column 161, damping sleeves 162 are fixedly connected to two ends of the middle connecting column 161, and damping sleeves 163 are slidably connected to the inner surfaces of the damping sleeves 162, a fixed connecting sleeve 164 is fixedly connected to one side of the damping sleeve rod 163, which is far away from the damping sleeve 162, a damping spring 165 is sleeved on the outer surface of the damping sleeve 162, an annular connecting piece 166 is fixedly connected to one side of the fixed connecting sleeve 164, which is far away from the damping sleeve rod 163, a recovery device 17 is fixedly connected to the middle position of the back surface of the inner cavity of the rear axle housing 1, the recovery device 17 comprises a recovery box 171, a fixing piece 172 is fixedly connected to the top of the outer surface of the recovery box 171, a filter screen 173 is fixedly connected to the middle position in the inner surface of the recovery box 171, a display tube 174 is fixedly connected to the bottom of one side of the outer wall of the recovery box 171, a driving rotating shaft 2 penetrates through the rear axle housing 1 and extends to the outer surface of the rear axle housing 1, air holes 18 are formed in two sides of the driving rotating shaft 2, one side of the air holes 18, which is located in the inner cavity of the rear axle housing 1, is communicated with a cooling fan 12 through a hose, a first driven rotating shaft 6 and a second driven rotating shaft 10 both penetrate through the rear axle housing 1 and extends to the outer wall of the rear axle housing 1, first driven rotating shaft 6 and second driven rotating shaft 10 are located the one end fixedly connected with wheel hub connecting piece 19 of rear axle shell 1 outer wall, one side and rear axle shell 1 fixed connection that lubricating arrangement 15 was kept away from to buffer 16, one side and the meshing transmission of second helical gear 4 that lubricating arrangement 15 is close to third helical gear 7, oiling mouth 20 has been seted up at rear axle shell 1 front top, hose and lubricating arrangement 15 intercommunication are passed through at the oiling mouth 20 back, oiling mouth 20 internal surface threaded connection has sealed lid 21. Make the device can guarantee that it has lubricated effect for a long time to can carry out effectual heat dissipation, avoid differential mechanism surface to produce thermal fatigue, guarantee that equipment is not damaged, guarantee automobile life and personal safety.

When the lubricating device is used, a lubricating agent is injected into the lubricating liquid tank 151 through the oil injection port 20, when the driving rotating shaft 2 rotates, the first helical gear 3 and the second helical gear 4 are meshed with each other, the second helical gear 4 drives the lubricating gear 154 to rotate, the fixed rotating shaft 153 rotates on the fixed rotating sleeve 152, the lubricating agent in the lubricating liquid tank 151 flows into the surface of the lubricating gear 154 through the branch through hole 155 and the main flow through hole 156, is fully contacted with the second helical gear 4 and is contacted with the first helical gear 3 through meshing transmission to realize lubrication, when the lubricating agent on the surface of the second helical gear 4 is excessive, the lubricating agent drips onto the third helical gear 7, the transmission helical gear 8 and the fourth helical gear 9 are contacted with the lubricating agent through meshing transmission to realize lubrication, the redundant lubricating agent drips into the recovery device 17, in the driving process, the cooling fan 12 can be opened to realize air circulation in the inner cavity of the rear axle housing 1, the heat of the inner wall is reduced, and the long-time use safety of the mechanism is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The phrase "comprising a defined element does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

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

1. An automobile rear axle, includes rear axle shell (1), its characterized in that: the rear axle housing (1) is rotatably connected with a driving rotating shaft (2) at the middle position of the bottom of an inner cavity of the rear axle housing (1), one end of the driving rotating shaft (2) positioned in the inner cavity of the rear axle housing (1) is fixedly connected with a first helical gear (3), the right side of the outer surface of the first helical gear (3) is in meshing transmission with a second helical gear (4), one side of the second helical gear (4) far away from the first helical gear (3) is fixedly connected with a fixed connecting piece (5), the inner surface of the fixed connecting piece (5) is fixedly connected with a first driven rotating shaft (6), one end of the first driven rotating shaft (6) close to the second helical gear (4) is fixedly connected with a third helical gear (7), one side of the third helical gear (7) far away from the first driven rotating shaft (6) is in meshing transmission with a transmission helical gear (8), one side of the transmission helical gear (8) far away from the third helical gear (7) is in meshing transmission with a fourth helical gear (9), the inner surface of the fourth bevel gear (9) is fixedly connected with a second driven rotating shaft (10), the inner cavity of the rear axle shell (1) is positioned on the front surface of the driving rotating shaft (2) and is fixedly connected with a connecting transverse plate (11), one side symmetrical position of the connecting transverse plate (11) close to the first bevel gear (3) is fixedly connected with a cooling fan (12), one side of the cooling fan (12) far away from the connecting transverse plate (11) is fixedly connected with a cooling air port (13), the top of the inner cavity of the rear axle shell (1) is close to the front position and is fixedly connected with a compression resistance device (14), one side of the compression resistance device (14) far away from the rear axle shell (1) is fixedly connected with a lubricating device (15), one side symmetrical position of the outer walls at two sides of the lubricating device (15) far away from the compression resistance device (14) is fixedly connected with a buffer device (16), and the middle position of the back surface of the inner cavity of the rear axle shell (1) is fixedly connected with a recovery device (17), the lubricating device (15) comprises a lubricating liquid box (151), a fixed rotating sleeve (152) is fixedly connected to the middle position of the bottom of an inner cavity of the lubricating liquid box (151), a fixed rotating shaft (153) is slidably connected to the inner surface of the fixed rotating sleeve (152), a lubricating gear (154) is fixedly connected to one side, away from the fixed rotating sleeve (152), of the fixed rotating shaft (153), an inlet (157) is formed in the top of one side, close to the fourth helical gear (9), of the front face of the lubricating liquid box (151), a flow through hole is formed in the outer surface of the fixed rotating sleeve (152), a branch through hole (155) is formed in the outer surface of the fixed rotating shaft (153), a main circulation hole (156) is formed in the middle position of the fixed rotating shaft (153), one side, away from the fixed rotating sleeve (152), of the branch through hole (155) is communicated with the main circulation hole (156), and an overflow hole is formed in one side, away from the fixed rotating shaft (153), of the lubricating gear (154), the side of the overflow hole close to the fixed rotary sleeve (152) is communicated with the main circulation hole (156).

2. The rear axle of a vehicle as claimed in claim 1, wherein: the compression-resistant device (14) comprises a compression-resistant connecting plate (141), one side symmetrical position fixedly connected with connecting block (142) of the lubricating device (15) is kept away from the compression-resistant connecting plate (141), one side fixedly connected with compression-resistant arc plate (143) which is close to the connecting block (142) is arranged, one side of the lubricating device (15) is kept away from the compression-resistant connecting plate (141) and the compression-resistant spring (144) is fixedly connected with the compression-resistant arc plate (143) at the middle position.

3. The rear axle of a vehicle as claimed in claim 1, wherein: buffer (16) are including middle spliced pole (161), the equal fixedly connected with damping sleeve (162) in middle spliced pole (161) both ends, damping sleeve (162) internal surface sliding connection has damping loop bar (163), one side fixedly connected with fixed connection cover (164) of damping sleeve (162) are kept away from damping loop bar (163), damping sleeve (162) surface cover is equipped with damping spring (165), one side fixedly connected with annular connecting piece (166) of damping loop bar (163) are kept away from fixed connection cover (164).

4. The rear axle of a vehicle as claimed in claim 1, wherein: recovery unit (17) are including collection box (171), collection box (171) surface top fixedly connected with mounting (172), middle upper position fixedly connected with filter screen (173) in collection box (171) internal surface, collection box (171) outer wall one side bottom fixedly connected with display tube (174).

5. The rear axle of a vehicle as claimed in claim 1, wherein: the rear axle shell (1) is run through and rear axle shell (1) surface is extended to in initiative pivot (2), rear axle shell (1) is located initiative pivot (2) both sides and has seted up bleeder vent (18), hose and cooling fan (12) intercommunication are passed through to one side that bleeder vent (18) are located rear axle shell (1) inner chamber.

6. The rear axle of a vehicle as claimed in claim 1, wherein: first driven rotating shaft (6) and second driven rotating shaft (10) all run through rear axle shell (1) and extend to rear axle shell (1) outer wall, first driven rotating shaft (6) and second driven rotating shaft (10) are located one end fixedly connected with wheel hub connecting piece (19) of rear axle shell (1) outer wall.

7. The rear axle of a vehicle as claimed in claim 1, wherein: one side, far away from the lubricating device (15), of the buffer device (16) is fixedly connected with the rear axle shell (1), and one side, close to the third helical gear (7), of the lubricating device (15) is in meshing transmission with the second helical gear (4).

8. The rear axle of a vehicle as claimed in claim 1, wherein: an oil filling port (20) is formed in the top of the front face of the rear axle shell (1), the back face of the oil filling port (20) is communicated with a lubricating device (15) through a hose, and a sealing cover (21) is connected to the inner surface of the oil filling port (20) in a threaded mode.