CN213981934U

CN213981934U - Drive axle sealing structure for automatic transmission electric drive axle

Info

Publication number: CN213981934U
Application number: CN202022973564.7U
Authority: CN
Inventors: 文德来
Original assignee: Changsha Qingte Axle Co ltd
Current assignee: Changsha Qingte Axle Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-08-17
Anticipated expiration: 2030-12-11

Abstract

The utility model relates to the technical field of automatic transmission electric drive axles, in particular to a drive axle sealing structure for an automatic transmission electric drive axle, which comprises a differential mechanism shell, a transmission shaft and a wheel mounting plate, wherein the upper middle position of the differential mechanism shell is rotationally connected with a driving shaft, the left end and the right end of the differential mechanism shell are rotationally connected with the transmission shaft, the other end of the transmission shaft is fixedly connected with the wheel mounting plate, the upper middle position of the upper end of the differential mechanism shell is fixedly connected with a rotating seat, the upper end of the rotating seat is internally provided with a lower sealing ring, the upper side of the lower sealing ring is rotationally connected with an upper sealing ring, the upper end of the rotating seat is fixedly connected with an upper cover plate, and the left end and the right end of the upper cover plate are spirally connected with a second fastening bolt, therefore, the phenomenon of oil leakage of the differential shell in the process is prevented, and waste is avoided.

Description

Drive axle sealing structure for automatic transmission electric drive axle

Technical Field

The utility model relates to an automatic transmission electric drive axle production technical field specifically is a transaxle seal structure for automatic transmission electric drive axle.

Background

A transaxle is a mechanism that is located at the end of a drive train and can change the rotational speed and torque from a transmission and transmit them to drive wheels, and is generally composed of a main speed reducer, a differential, a wheel transmission, a transaxle case, etc., and a steering transaxle and a constant velocity universal joint, and in addition, the transaxle is subjected to vertical force, longitudinal force and lateral force, and braking torque and reaction force acting between a road surface and a vehicle frame or a vehicle body.

In prior art, the inside rotatory work of the driving shaft through differential mechanism of transaxle to the moment of torsion of increase transmission shaft, thereby the driving wheel is rotatory, and wherein the driving shaft is connected for rotating with differential mechanism casing, leads to the inside working oil of differential mechanism casing to ooze from the running clearance is inside easily, causes the waste, and the inside working oil discharge of differential mechanism casing is inconvenient, influences maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transaxle seal structure for automatic transmission electric drive axle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a drive axle sealing structure for an automatic transmission electric drive axle comprises a differential housing, a transmission shaft and a wheel mounting plate, wherein the upper end middle position of the differential housing is rotatably connected with a driving shaft, the left end and the right end of the differential housing are rotatably connected with the transmission shaft, the other end of the transmission shaft is fixedly connected with the wheel mounting plate, the upper end middle position of the differential housing is fixedly connected with a rotating seat, a lower sealing ring is arranged inside the upper end of the rotating seat, the upper side of the lower sealing ring is rotatably connected with an upper sealing ring, the upper end of the rotating seat is fixedly connected with an upper cover plate, the left end and the right end of the upper cover plate are both in screw connection with a second fastening bolt, the lower end of the second fastening bolt is fixedly connected with a clamping block, a first sealing gasket is arranged inside the lower end of the rotating, and the upper end of lead screw rotates and is connected with the slide, lower extreme one side fixedly connected with closing block of slide, and the outside of closing block is equipped with and is the second sealed pad that sets up from top to bottom, the upper end left side fixedly connected with of differential mechanism casing advances oil pipe.

Preferably, the left end and the right end of the rotating seat are fixedly connected with first fastening bolts, and the rotating seat and the differential case are fixedly connected with the differential case through the arranged first fastening bolts.

Preferably, the upper sides of the left end and the right end of the rotating seat are both connected with push rods in a sliding mode, the first springs are fixedly connected to the outer portions of the push rods, and the other ends of the first springs are fixedly connected with the rotating seat.

Preferably, the first sealing gasket, the second sealing gasket, the upper sealing ring and the lower sealing ring are all made of polyurethane rubber blocks.

Preferably, the guide rods are slidably connected to the inner portions of the left side and the right side of the sliding plate, the upper end and the lower end of each guide rod are fixedly connected with the supporting plate and the differential housing respectively, the second spring is arranged on the outer portion of the upper side of each guide rod, and the upper end and the lower end of each second spring are fixedly connected with the supporting plate and the sliding plate respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the driving shaft and the differential shell are conveniently sealed by the arranged upper sealing ring and the lower sealing ring, so that the differential shell is prevented from oil leakage in the process, waste is caused, the upper cover plate is conveniently driven to seal the upper sealing ring and the lower sealing ring by the arranged second fastening bolt, and the push rod is conveniently driven to stretch by the arranged first spring, so that the fixture block is conveniently fixed, and the second fastening bolt is prevented from loosening in the use process to cause danger;

2. the utility model discloses in, advance oil pipe through setting up and be convenient for to the inside fuel feeding of differential mechanism to be convenient for the normal operating of the inside each part of differential mechanism casing, the lead screw that the rethread set up drives the slide and removes, thereby removes the closing piece, thereby opens the differential mechanism casing, realizes the change to the inside oil body, and the second spring that the rethread set up is convenient for remove the slide, thereby makes the closing piece close, and it is laborsaving to save trouble, prevents losing of closing piece.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the differential case housing of the present invention;

FIG. 3 is a schematic diagram of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic structural diagram of the point B in fig. 2 according to the present invention.

In the figure: the device comprises a wheel mounting plate 1, a transmission shaft 2, a differential mechanism housing 3, an oil inlet pipe 4, a rotating seat 5, a driving shaft 6, an upper cover plate 7, a first sealing gasket 8, a first fastening bolt 9, a second fastening bolt 10, a push rod 11, a first spring 12, a clamping block 13, a lower sealing ring 14, an upper sealing ring 15, a supporting plate 16, a second spring 17, a sliding plate 18, a guide rod 19, a screw rod 20, a closing block 21 and a second sealing gasket 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Please refer to fig. 1-4, the present invention provides a technical solution:

a drive axle sealing structure for an automatic transmission electric drive axle comprises a differential housing 3, a transmission shaft 2 and a wheel mounting plate 1, wherein a driving shaft 6 is rotatably connected at the middle position of the upper end of the differential housing 3, the transmission shaft 2 is rotatably connected at the left end and the right end of the differential housing 3, the wheel mounting plate 1 is fixedly connected at the other end of the transmission shaft 2, a rotating seat 5 is fixedly connected at the middle position of the upper end of the differential housing 3, a lower sealing ring 14 is arranged inside the upper end of the rotating seat 5, an upper sealing ring 15 is rotatably connected at the upper side of the lower sealing ring 14, an upper cover plate 7 is fixedly connected at the upper end of the rotating seat 5, a second fastening bolt 10 is spirally connected at the left end and the right end of the upper cover plate 7, a clamping block 13 is fixedly connected at the lower end of the second fastening bolt 10, a first sealing gasket 8 is arranged inside the lower end of the rotating seat 5, and a screw rod 20 is spirally connected at the middle position of the lower end of the differential housing 3, and the upper end of the screw rod 20 is rotatably connected with a sliding plate 18, one side of the lower end of the sliding plate 18 is fixedly connected with a closing block 21, a second sealing gasket 22 which is arranged up and down is arranged outside the closing block 21, and the left side of the upper end of the differential case 3 is fixedly connected with an oil inlet pipe 4.

The left end and the right end of the rotating seat 5 are fixedly connected with first fastening bolts 9, the rotating seat 5 and the differential case 3 are fixedly connected with the differential case 3 through the arranged first fastening bolts 9, and the rotating seat 5 and the differential case 3 are conveniently fixed and detached through the arranged first fastening bolts 9, so that the daily maintenance of the differential case 3 is facilitated; push rods 11 are connected to the upper sides of the left end and the right end of the rotating seat 5 in a sliding mode, a first spring 12 is fixedly connected to the outer portion of each push rod 11, the rotating seat 5 is fixedly connected to the other end of each first spring 12, and the push rods 11 are driven to stretch and retract conveniently through the arranged first springs 12, so that the clamping blocks 13 are fixed conveniently, and the second fastening bolts 10 are prevented from loosening and causing danger in the use process; the first sealing gasket 8, the second sealing gasket 22, the upper sealing ring 15 and the lower sealing ring 14 are all made of polyurethane rubber blocks, and the first sealing gasket 8, the second sealing gasket 22, the upper sealing ring 15 and the lower sealing ring 14 are all made of polyurethane rubber blocks, so that the differential case 3 is conveniently sealed, and the differential case 3 is prevented from being wasted due to the oil leakage phenomenon in the using process; the inside sliding connection of the left and right sides of slide 18 has guide rod 19, and the upper and lower both ends of guide rod 19 are fixedly connected with backup pad 16 and differential mechanism casing 3 respectively, the upside outside of guide rod 19 is equipped with second spring 17, and the upper and lower both ends of second spring 17 are fixedly connected with backup pad 16 and slide 18 respectively, through guide rod 19 and the backup pad 16 that sets up, be convenient for to slide 18 removal and support, the second spring 17 of rethread setting, be convenient for pop out slide 18 automatically, thereby drive closing block 21 and close differential mechanism casing 3.

The working process is as follows: the driving shaft 6 is arranged to drive the transmission shaft 2 to rotate, so as to drive the wheel mounting plate 1 to rotate, thereby realizing an internal working principle, the driving shaft 6 and the differential housing 3 are conveniently sealed through the upper sealing ring 15 and the lower sealing ring 14, thereby preventing the differential housing 3 from oil leakage and causing waste in the process, the upper cover plate 7 is conveniently driven to seal the upper sealing ring 15 and the lower sealing ring 14 through the arranged second fastening bolt 10, the push rod 11 is conveniently driven to stretch through the arranged first spring 12, thereby facilitating the fixation of the clamping block 13, preventing the second fastening bolt 10 from loosening and causing danger in the use process, the oil can be conveniently supplied to the inside of the differential housing 3 through the arranged oil inlet pipe 4, thereby facilitating the normal operation of each component in the differential housing 3, and then the arranged lead screw 20 rotates, thereby drive slide 18 and remove, thereby remove closing piece 21, thereby open differential housing 3, discharge the inside oil of differential housing 3, realize the change to the inside oil body, through guide arm 19 and the backup pad 16 that sets up, be convenient for to the removal and the support of slide 18, the second spring 17 of rethread setting, be convenient for remove slide 18, thereby make closing piece 22 close, it is laborsaving to save trouble, the sealed pad 22 of second of rethread setting, be convenient for to closing piece 21 sealed, prevent to appear the oil leak phenomenon when closing piece 22, cause the waste, prevent losing of closing piece 22 simultaneously.

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. The utility model provides a transaxle seal structure for automatic transaxle, includes differential mechanism casing (3), transmission shaft (2) and wheel mounting panel (1), its characterized in that: the upper end intermediate position department of differential mechanism casing (3) rotates and is connected with driving shaft (6), and the left and right sides both ends of differential mechanism casing (3) all rotate and be connected with transmission shaft (2), the other end fixedly connected with wheel mounting panel (1) of transmission shaft (2), the upper end intermediate position department fixedly connected with of differential mechanism casing (3) rotates seat (5), and rotates the inside lower sealing washer (14) that is equipped with in upper end of seat (5), the upside of lower sealing washer (14) rotates and is connected with upper seal ring (15), and rotates the upper end fixedly connected with upper cover plate (7) of seat (5), the left and right sides both ends of upper cover plate (7) all spiral connection have second fastening bolt (10), and the lower extreme fixedly connected with fixture block (13) of second fastening bolt (10), the inside first sealed pad (8) that is equipped with of lower extreme of seat (5), the utility model discloses a differential mechanism, including differential mechanism casing (3), the lower extreme intermediate position department spiral of differential mechanism casing (3) has lead screw (20), and the upper end of lead screw (20) rotates and is connected with slide (18), lower extreme one side fixedly connected with closed block (21) of slide (18), and the outside of closed block (21) is equipped with and is the sealed pad (22) of second that set up from top to bottom, the upper end left side fixedly connected with of differential mechanism casing (3) advances oil pipe (4).

2. A drive axle sealing structure for an automatic transmission electric drive axle according to claim 1, characterized in that: the left end and the right end of the rotating seat (5) are fixedly connected with first fastening bolts (9), and the rotating seat (5) and the differential case (3) are fixedly connected with the differential case (3) through the arranged first fastening bolts (9).

3. A drive axle sealing structure for an automatic transmission electric drive axle according to claim 1, characterized in that: the upper sides of the left end and the right end of the rotating seat (5) are both connected with push rods (11) in a sliding mode, the first springs (12) are fixedly connected to the outer portions of the push rods (11), and the other ends of the first springs (12) are fixedly connected with the rotating seat (5).

4. A drive axle sealing structure for an automatic transmission electric drive axle according to claim 1, characterized in that: the first sealing gasket (8), the second sealing gasket (22), the upper sealing ring (15) and the lower sealing ring (14) are all made of polyurethane rubber blocks.

5. A drive axle sealing structure for an automatic transmission electric drive axle according to claim 1, characterized in that: the inner portions of the left side and the right side of the sliding plate (18) are connected with guide rods (19) in a sliding mode, the upper end and the lower end of each guide rod (19) are fixedly connected with a supporting plate (16) and the differential shell (3) respectively, a second spring (17) is arranged on the outer portion of the upper side of each guide rod (19), and the upper end and the lower end of each second spring (17) are fixedly connected with a supporting plate (16) and a sliding plate (18) respectively.