CN219606001U - An integrated gearbox housing - Google Patents

Abstract

The utility model provides an integrated gearbox housing, which aims to solve the problems of complex installation and allocation of parts of the gearbox housing, easy oil leakage, easy air leakage and the like, and comprises a gearbox housing main body, wherein a main shaft hole, an oil pump assembly installation hole and a brake installation hole are formed in the gearbox housing main body; the inside and outside of the main shaft hole are respectively provided with a main shaft outer oil inlet and a main shaft inner oil inlet which are connected, and the lower end of the main shaft hole is provided with a main shaft oil overflow groove; the outer side of the oil pump assembly mounting hole is provided with an oil pump outer oil suction port, the inner side of the oil pump outer oil suction port is provided with an oil pump inner oil suction port, and the lower end of the oil pump mounting hole assembly is provided with an oil pump main oil outlet groove and an oil pump auxiliary oil outlet groove; the lower end surface of the gearbox shell body is provided with a main shaft and a brake oil inlet groove which are communicated between a main shaft oil inlet and a main oil outlet groove of the oil pump; the outer side of the brake mounting hole is provided with a brake oil inlet groove, the lower end of the inner part is provided with a brake oil overflow groove, and the brake oil inlet groove is connected with the main shaft and the brake oil inlet groove; and a separation fork shaft boss is fixedly connected above the transmission shell body.

Description

An integrated gearbox housing

technical field

The utility model relates to the technical field of vehicles, in particular to an integrated gearbox housing.

Background technique

Most of the current gearbox main shaft end cover, oil guide ring, countershaft end cover, oil pump, brake assembly, separation fork support, oil circuit, and air circuit are installed separately on the transmission case, and there are many design parts. It is not beautiful enough, and there are many oil and gas leakage faults in the external installation of the air pipe and oil pipe. The separation fork support needs to be fixed separately, and the assembly time is more and more difficult.

Utility model content

In order to solve the problems such as complex installation and matching of gearbox casing components, oil leakage and air leakage, the utility model provides an integrated gearbox casing, and the adopted technical scheme is as follows:

An integrated gearbox housing, characterized in that it includes a gearbox housing body, and the gearbox housing body is provided with a spindle hole, an oil pump assembly installation hole, and a brake installation hole;

The main shaft hole runs through the upper and lower sides, the outer side is provided with the main shaft oil inlet, and the main shaft hole is provided with the main shaft inner oil inlet, and the main shaft outer oil inlet and the main shaft inner oil inlet are connected through the main shaft oil inlet. And the lower end of the main shaft hole is also provided with a main shaft oil overflow groove;

There is a cover at the upper end of the installation hole of the oil pump assembly, the outer oil suction port of the oil pump is arranged on the outside, and the inner oil suction port of the oil pump is arranged inside, the outer oil suction port of the oil pump is connected with the inner oil suction port of the oil pump through the oil pump oil suction channel, and the lower end surface of the main body of the transmission case is also The oil pump main oil outlet groove and the oil pump auxiliary oil outlet groove connected with the installation hole of the oil pump assembly are provided;

The lower end surface of the gearbox housing main body is provided with a main shaft and a brake oil inlet groove, and the main shaft and brake oil inlet groove are connected with the main shaft oil inlet and the main oil outlet groove of the oil pump;

The upper end of the brake installation hole has a cover, the outer side is provided with a brake oil inlet groove, and the inner lower end is provided with a brake oil overflow groove, and the brake oil inlet groove is connected with the main shaft and the brake oil inlet groove;

In addition, a separation fork shaft boss is fixedly connected above the main body of the transmission case, and a separation fork shaft boss shaft hole is arranged on the separation fork shaft boss.

Preferably, the main body of the transmission housing at the upper end of the brake installation hole is also provided with an inner brake air inlet, and an outer brake air inlet is arranged outside the brake installation hole, and the brake inner air inlet and the brake outer air inlet pass through the brake The gas circuit is connected, and the brake gas circuit is arranged inside the main body of the transmission case.

Preferably, an air passage boss is fixedly connected to the main body of the gearbox housing, the air passage boss is arranged outside the brake installation hole, and the brake air passage is arranged inside the air passage boss.

Preferably, an oil seal hole is provided above the spindle hole, and a spindle end cover installation surface is provided above the oil seal hole.

The beneficial effects of the utility model are:

This technical solution integrates the main shaft end cover, brake end cover, oil pump cover, separation shift fork support and oil circuit and air circuit on the gearbox housing. The gearbox assembly is simple and fast, and can effectively reduce the failure rate of oil circuit and air circuit. .

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is the lower side view of the installation of the utility model

Figure 3 is a cross-sectional view of A-A

Figure 4 is a cross-sectional view of B-B

Figure 5 is a sectional view of C-C

Figure 6 is a cross-sectional view of the gearbox housing in an assembled state

Figure 7 is a schematic diagram of the installation structure of the separation fork

Among them, 1-gearbox housing main body, 2-separation fork shaft boss, 3-separation fork shaft boss shaft hole, 4-spindle end cover mounting surface, 5-spindle hole, 6-oil seal hole, 7-gas path Process hole, 8-gas path boss, 9-external oil suction port of oil pump, 10-inner oil suction port of oil pump, 11-installation hole of oil pump assembly, 12-main oil outlet groove of oil pump, 13-auxiliary oil outlet groove of oil pump, 14-spindle and Brake oil inlet groove, 15-spindle outer oil inlet, 16-spindle inner oil inlet, 17-spindle oil overflow groove, 18-brake oil inlet groove, 19-brake oil overflow groove, 20-brake installation hole, 21-brake outer Air inlet, 22-Brake inner air inlet, 23-Oil pump oil suction passage, 24-Spindle oil inlet passage, 25-Brake air circuit, 26-Brake assembly, 27-Spindle, 28-Oil seal, 29-Spindle end cover , 30-oil pump assembly, 31-separation shift fork.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the view direction or positional relationship, and is only for the convenience of describing the utility model, rather than indicating or implying that the device or element referred to must have a specific orientation , are constructed and operated in a specific orientation and therefore cannot be construed as limitations on the utility model.

The integrated transmission case shown in Figure 1-5 includes a main body 1 of the transmission case. The main body 1 of the transmission case is a special-shaped plate structure, with a main shaft hole 5 in the middle and an oil pump assembly installed on the right side. The hole 11 is provided with a brake mounting hole 20 on the left side.

The main shaft hole 5 runs through the upper and lower sides, and an oil seal hole 6 with coaxial distribution is arranged on the outer side of the upper part. The lower end surface of the main body 1 of the box housing is provided with a main shaft outer oil inlet 15, and the inside of the main shaft hole 5 is provided with a main shaft inner oil inlet 16, as shown in Figure 3, the main shaft outer oil inlet 15 and the main shaft inner oil inlet 16 pass through the main shaft The oil inlet passages 24 communicate with each other.

The upper end of the oil pump assembly mounting hole 11 is covered, and the lower end surface of the gearbox housing main body 1 is provided with an oil pump external oil suction port 9 located outside the oil pump assembly mounting hole 11, and an oil pump internal oil suction port 10 is arranged inside the oil pump assembly mounting hole 11. , as shown in Figure 4, the oil pump external oil suction port 9 is connected with the oil pump internal oil suction port 10 through the oil pump oil suction channel 23, and the lower end of the oil pump assembly mounting hole 11 is connected with the oil pump main oil outlet groove 12 and the oil pump auxiliary oil outlet groove 13.

The lower end surface of the gearbox housing main body 1 is also provided with a main shaft and brake oil inlet groove 14, the main shaft and brake oil inlet groove 14 is located between the main shaft outer oil inlet 15 and the oil pump main oil outlet groove 14, and the two ends are respectively connected with the two .

The upper end of the brake installation hole 20 has a cover, and the outer side is provided with a brake oil inlet groove 18 for connecting with the brake. The brake oil inlet groove 18 communicates with the oil inlet 15 outside the main shaft, and the lower end of the brake installation hole 20 is connected with a brake oil overflow groove 19. In addition, The inner wall of the upper end cover of the brake mounting hole 20 is provided with a brake inner air inlet 22, and the outer side is fixedly connected with an air path boss 8, and the inside of the air path boss 8 is provided with a brake air path 25, as shown in Figure 5, one end of the brake air path 25 It is the brake outer air inlet 21 located on the lower end surface of the main body of the gearbox housing 1, and the other end extends to the top of the brake installation hole 20, and the brake air passage 25 communicates with the brake inner air inlet 22. In addition, the brake air passage 25 One end above the brake mounting hole 20 is an integrally cast gas path process hole 7, which is blocked after processing.

As shown in Figures 6 and 7, the main shaft 27 is installed in the main shaft hole 5, the main shaft end cover 29 is fixedly connected with the main shaft end cover installation surface 4, the oil seal 28 is installed in the oil seal hole 6, and the oil pump assembly 30 is installed in the oil pump assembly In the installation hole 11 , the brake assembly 26 is installed in the brake installation hole 20 , and the separation shift fork 31 is connected with the separation fork shaft boss 2 through the separation fork shaft boss hole 3 .

The working principle of this device is as follows:

When the oil pump is working, the oil is sucked from the inside of the gearbox through the oil suction port 9 outside the oil pump, and enters the oil pump assembly 30 from the oil suction port 10 inside the oil pump. Outflow, the auxiliary oil circuit goes out through the oil pump auxiliary oil outlet groove 13 to fill the spray pipe with oil, the main oil circuit enters from the main shaft and brake oil inlet groove 14, and part of it enters the main shaft from the outer oil inlet 15 of the main shaft and the inner oil inlet 16 of the main shaft The oil passage lubricates the main shaft, and the other part enters the brake from the brake oil inlet groove 18. When the oil pressure is too high, it overflows from the main shaft oil overflow groove 17 and the brake oil overflow groove 19 and then enters the gearbox; when the whole vehicle is ventilated, the pressurized gas enters from the outside of the brake. The air port 21 and the air inlet 22 in the brake enter the inner cavity of the brake to press the brake disc to work.

This device integrates the main shaft end cover, brake end cover, oil pump cover, separation shift fork support and oil circuit and air circuit, which is easy to assemble and effectively reduces the failure of oil circuit and air circuit.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements can also be made, and these improvements should also be considered It is the protection scope of the utility model.

Claims (4)

1. The integrated gearbox shell is characterized by comprising a gearbox shell body, wherein a main shaft hole, an oil pump assembly mounting hole and a brake mounting hole are formed in the gearbox shell body;

the main shaft holes are vertically and penetratingly distributed, the outer sides of the main shaft holes are provided with main shaft outer oil inlets, the main shaft holes are internally provided with main shaft inner oil inlets, the main shaft outer oil inlets are connected with the main shaft inner oil inlets through main shaft oil inlet channels, and the lower ends of the main shaft holes are also provided with main shaft oil overflow grooves;

the upper end of the oil pump assembly mounting hole is provided with a cover, the outer side of the oil pump assembly mounting hole is provided with an oil pump outer oil suction port, the inner side of the oil pump assembly mounting hole is provided with an oil pump inner oil suction port, the oil pump outer oil suction port is connected with the oil pump inner oil suction port through an oil pump suction duct, and the lower end surface of the gearbox shell body is also provided with an oil pump main oil outlet groove and an oil pump auxiliary oil outlet groove which are connected with the oil pump assembly mounting hole;

the lower end face of the gearbox shell body is provided with a main shaft and a brake oil inlet groove which are communicated with a main shaft oil inlet and an oil pump main oil outlet groove;

the upper end of the brake mounting hole is provided with a cover, the outer side of the brake mounting hole is provided with a brake oil inlet groove, the inner lower end of the brake mounting hole is provided with a brake oil overflow groove, and the brake oil inlet groove is connected with the main shaft and the brake oil inlet groove;

in addition, a separation fork shaft boss is fixedly connected above the gearbox shell body, and a separation fork shaft boss shaft hole is formed in the separation fork shaft boss.

2. The integrated transmission housing according to claim 1, wherein the transmission housing body at the upper end inside the brake mounting hole is further provided with an inner brake air inlet, an outer brake air inlet is provided outside the brake mounting hole, the inner brake air inlet is connected with the outer brake air inlet through a brake air passage, and the brake air passage is provided inside the transmission housing body.

3. The integrated transmission housing of claim 2, wherein the transmission housing body is fixedly connected with a gas path boss, the gas path boss being disposed outside the brake mounting hole, and the brake gas path being disposed within the gas path boss.

4. The integrated transmission housing of claim 1, wherein an oil seal is disposed above the spindle bore and a spindle end cap mounting surface is disposed above the oil seal.