CN217502506U

CN217502506U - Split differential housing for DHT hybrid transmission

Info

Publication number: CN217502506U
Application number: CN202221460429.5U
Authority: CN
Inventors: 俞祥飞
Original assignee: Hangzhou Jili Machinery Co ltd
Current assignee: Hangzhou Jili Machinery Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-09-27
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a split type differential mechanism casing for DHT oil-electricity hybrid transmission, which comprises an outer shell body, shell body one side be equipped with coupling mechanism, coupling mechanism in be equipped with first meshing piece, first meshing piece one side install interior casing, the shell body in install outer gear seat. The utility model discloses can carry out the buffering when differential mechanism uses through the outer buffering shell on the outer gear seat and the interior internal toothing that shells on, cushion through outer buffering shell both ends and the external leakage that carries out stress of punching a hole, prevent that the internal pressure is too big to take place differential mechanism and damage, connect through the internal toothing and the external toothing on second meshing piece and the first meshing piece, consolidate external shell and interior casing, the casing that prevents split type design is connected inseparably after the installation, influence differential mechanism and use, improve the work efficiency of DHT oil-electricity hybrid transmission, avoid current differential mechanism casing because there is not special design, lead to the problem that differential mechanism installation effectiveness is low.

Description

Split differential housing for DHT hybrid transmission

Technical Field

The utility model relates to a technical field of DHT oil and electricity hybrid transmission especially relates to a split type differential mechanism casing that is used for DHT oil and electricity hybrid transmission.

Background

A DHT is a hybrid drive, whose function is essentially performed by means of an electric drive, for example, the speed and torque of an internal combustion engine are adjusted during operation of a motor vehicle. This means that: the electrically driven vehicle components receive a central task in the DHT system, which is a central component of the design, and is also a fundamental difference between the DHT drive and the conventional "additional drive scheme".

Generally, a split-type casing of an existing DHT transmission differential casing is not tightly connected after being installed, so that the use of a differential is affected, and the installation efficiency of the differential is low due to the fact that no special design exists, so that the split-type differential casing for the DHT oil electric hybrid transmission is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the casing of the split type design of current DHT derailleur differential mechanism casing and connecting inseparably after the installation, influence differential mechanism and use, owing to there is not special design, lead to the not enough of differential mechanism installation effectiveness low, and the split type differential mechanism casing who is used for DHT oil-electricity hybrid transmission who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a split type differential mechanism casing for DHT oil-electricity hybrid transmission, which comprises an outer shell body, shell body one side be equipped with coupling mechanism, coupling mechanism in be equipped with first meshing piece, first meshing piece one side install interior casing, the shell body in install external gear seat, interior casing in correspond external gear seat and be equipped with internal gear seat, external gear seat on be equipped with protection mechanism.

Preferably, the connecting mechanism comprises two second meshing blocks arranged on one side of the outer shell, the two second meshing blocks are respectively provided with 4-8 corresponding inner meshing teeth, the number of the first meshing blocks is two, 4-8 corresponding outer meshing teeth are arranged on the two first meshing blocks and correspond to the second meshing blocks, and the outer meshing teeth are mutually connected with the corresponding inner meshing teeth for reinforcing when the outer shell is connected with the inner shell.

Preferably, protection mechanism including setting up the outer buffering shell on outer pinion stand, outer buffering shell both ends all be equipped with the cushion, buffer hole has all been seted up on two cushions for play the effect of buffering to outer pinion stand live time.

Preferably, the inner gear seat is provided with an inner buffer shell, and two ends of the outer gear seat are respectively provided with a connecting cavity for connecting a corresponding connecting rod on the transmission to position and install the differential shell.

Preferably, an outer shaft shell is arranged on one side of the outer gear seat, an inner shaft shell is arranged on one side of the inner gear seat, the outer shaft shell is installed in the outer shell, and the inner shaft shell is installed in the inner shell and used for stably using the whole differential mechanism when a matched transmission shaft is installed.

Preferably, the outer shell and the inner shell are respectively provided with two positioning blocks, and the two first meshing blocks and the two second meshing blocks are respectively arranged on one sides of the corresponding positioning blocks and are used for being meshed and fixed with each other so as to facilitate the connection of the whole outer shell and the inner shell after positioning.

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

1. through the matching use of components such as the outer shell, the inner shell, the outer buffer shell and the like, the outer buffer shell on the outer gear seat and the inner gear meshing on the inner shell are used for buffering the differential mechanism during use, and the cushion blocks and the punched holes at the two ends of the outer buffer shell are used for leaking stress, so that the differential mechanism is prevented from being damaged due to overlarge pressure in the shell;

2. the outer shell and the inner shell are reinforced by matching the first meshing block, the second meshing block, the inner meshing teeth and the like and connecting the second meshing block with the inner meshing teeth and the outer meshing teeth on the first meshing block, so that the split type shell is prevented from being not tightly connected after being installed and affecting the use of a differential mechanism;

to sum up, the utility model discloses can carry out the buffering when differential mechanism uses through the outer buffering shell on the outer gear seat and the interior internal toothing on the casing, cushion and the gentle hole that punches a hole through outer buffering shell both ends carry out the leakage of stress, prevent that the internal pressure is too big to take place differential mechanism and damage, connect through internal toothing and the external toothing on second engagement piece and the first engagement piece, consolidate outer casing and interior casing, it is inseparable to prevent that the casing of split type design from connecting after the installation, influence differential mechanism and use, improve DHT oil-electricity and mix the work efficiency who moves the variable speed unit, avoid current differential mechanism casing because there is not special design, lead to the problem that differential mechanism installation effectiveness is low.

Drawings

Fig. 1 is an overall structural view of a split differential case for a DHT hybrid transmission according to the present invention;

fig. 2 is an assembly structure view of a split differential case for a DHT hybrid transmission according to the present invention; FIG. 3 is an internal assembly schematic view of a split differential housing for a DHT electro-hydraulic hybrid transmission according to the present invention; fig. 4 is an internal structure view of a split differential case for a DHT hybrid transmission according to the present invention.

In the figure: 1. positioning blocks; 2. an outer housing; 3. a connecting cavity; 4. an outer gear seat; 5. a first engagement block; 6. an inner housing; 7. an inner gear seat; 8. an outer buffer shell; 9. a cushion block; 10. a buffer hole; 11. a second engagement block; 12. inner meshing teeth; 13. an inner buffer shell; 14. external gear teeth; 15. an outer shaft housing; 16. an inner shaft housing.

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.

Referring to fig. 1-4, a split type differential housing for a DHT oil-electric hybrid transmission, including outer housing 2, play the effect of protection to parts such as the inside supporting interior casing 6 of the split type differential housing for a DHT oil-electric hybrid transmission, interior casing 6 is installed to first meshing piece 5 one side, be used for installing supporting parts such as internal gear seat 7, install external gear seat 4 in the outer housing 2, be used for installing parts such as the supporting planetary gear in the differential, correspond external gear seat 4 in the interior casing 6 and be equipped with internal gear seat 7, correspond the interior drive gear of connection differential.

In the utility model, one side of the shell body 2 is provided with a connecting mechanism, a first meshing block 5 is arranged in the connecting mechanism, the first meshing block 5 and a second meshing block 11 are both made of high-strength metal materials and used for maintaining the integral strength after the two are connected and preventing the split differential shell of the DHT oil-electric hybrid transmission from cracking after being installed, the connecting mechanism comprises two second meshing blocks 11 arranged at one side of the shell body 2, the two second meshing blocks 11 are respectively provided with 4-8 corresponding inner meshing teeth 12, the number of the first meshing blocks 5 is two, the number of the second meshing blocks 11 is also two, the first meshing blocks 5 are convenient to be connected, the two first meshing blocks 5 are provided with 4-8 corresponding outer meshing teeth 14 corresponding to the second meshing blocks 11, the inner meshing teeth 12 are cylindrical connecting teeth, the outer meshing teeth 14 are cylindrical connecting teeth, the inner meshing teeth 12 are inserted in the outer meshing teeth 14, the two are interference fit and connect, take place to become flexible after preventing to connect, outer meshing tooth 14 and the 12 interconnect of inner gearing that correspond, all be equipped with two locating pieces 1 on shell body 2 and the interior casing 6, two first meshing piece 5 and two second meshing piece 11 are installed respectively in locating piece 1 one side that corresponds, use of fixing a position when installing on the derailleur after being convenient for be used for the split type differential mechanism casing installation of DHT oil electric hybrid transmission through four locating pieces 1.

The utility model discloses in, be equipped with protection mechanism on outer gear seat 4, protection mechanism cushions external gear seat 4 including setting up outer buffering shell 8 on outer gear seat 4, and outer buffering shell 8 both ends all are equipped with cushion 9, have all seted up buffering hole 10 on two cushion 9, and the buffering of inside power when carrying out the split type differential mechanism casing that is used for DHT oil-electricity hybrid transmission to use reduces the damage that inside derailleur brought to the holistic impact of casing.

The utility model discloses in, install interior buffering shell 13 on the

internal gear seat

7, 4 both ends of external gear seat all are equipped with connects

chamber

3, and 4 one sides of external gear seat are equipped with

outer axle housing

15, and 7 one sides of internal gear seat are equipped with inner axle housing 16, connect supporting gear in the differential mechanism, and outer axle housing 15 is installed in shell body 2, and interior axle housing 16 is installed in interior casing 6, plays duplicate protection's effect to the differential mechanism part of internally mounted. In the utility model, when the split differential shell used for the DHT oil-electric hybrid transmission is used, the differential components to be installed are sequentially placed in the outer buffer shell 8, the limit of one end of the connecting shaft in the differential is carried out through the outer shaft shell 15, after the differential assembly in the outer buffer shell 8 is installed, the inner housing 6 is placed on the outer housing 2 along the connecting shaft through the inner shaft housing 16, the other side of the differential assembly is protected, meanwhile, the bolt is screwed in along the threaded port of the crude oil on the outer shell 2 to fix the outer shell 2 and the inner shell 6, after the installation is finished, by the inner toothing 12 and the outer toothing 14 on the second block 11 and the first block 5, the outer shell 2 and the inner shell 6 are reinforced, and the buffer is carried out when the differential mechanism is used through the outer buffer shell 8 on the outer gear seat 4 and the inner gear 12 on the inner shell 6, so that the service life of the split differential mechanism shell for the DHT oil-electric hybrid transmission is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A split type differential mechanism casing for DHT oil-electricity hybrid transmission, including shell body (2), characterized by, shell body (2) one side be equipped with coupling mechanism, coupling mechanism in be equipped with first meshing piece (5), first meshing piece (5) one side install interior casing (6), shell body (2) in install external gear seat (4), interior casing (6) in correspond external gear seat (4) and be equipped with internal gear seat (7), external gear seat (4) on be equipped with protection mechanism.

2. The split differential case for a DHT oil-electric hybrid transmission according to claim 1, wherein the connecting mechanism comprises two second meshing blocks (11) provided on one side of the outer case (2), each of the two second meshing blocks (11) is provided with 4 to 8 corresponding inner teeth (12), the number of the first meshing blocks (5) is two, and the two first meshing blocks (5) are provided with 4 to 8 corresponding outer teeth (14) provided on the second meshing blocks (11), and the outer teeth (14) are interconnected with the corresponding inner teeth (12).

3. The split differential case for a DHT oil-electric hybrid transmission according to claim 1, wherein the protection mechanism comprises an outer cushion case (8) disposed on the outer gear holder (4), wherein both ends of the outer cushion case (8) are provided with cushion blocks (9), and cushion holes (10) are formed in both cushion blocks (9).

4. The split differential case for a DHT oil-electric hybrid transmission according to claim 1, wherein an inner cushion case (13) is installed on the inner gear holder (7), and both ends of the outer gear holder (4) are provided with the connecting cavities (3).

5. The split differential case for a DHT oil-electric hybrid transmission according to claim 1, wherein an outer shaft case (15) is provided on one side of the outer gear holder (4), an inner shaft case (16) is provided on one side of the inner gear holder (7), the outer shaft case (15) is installed in the outer case (2), and the inner shaft case (16) is installed in the inner case (6).

6. The split differential case for DHT oil-electric hybrid transmission according to claim 1 or 2, wherein the outer case (2) and the inner case (6) are each provided with two positioning blocks (1), and the two first engaging blocks (5) and the two second engaging blocks (11) are respectively mounted on one side of the corresponding positioning blocks (1).