CN217917619U

CN217917619U - Automobile wheel reduction mechanism

Info

Publication number: CN217917619U
Application number: CN202222095932.1U
Authority: CN
Inventors: 张千帆
Original assignee: Wenling Haifeng Differential Gear Co ltd
Current assignee: Wenling Haifeng Differential Gear Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-11-29
Anticipated expiration: 2032-08-10

Abstract

The utility model relates to an automobile wheel reduction mechanism, including casing and reduction gear group, reduction gear group include input gear shaft, idler, output gear and output shaft, the pivot of input gear shaft, idler and output gear is parallel to each other, the input gear shaft includes the input shaft cover, has seted up the input shaft hole on the input shaft cover, the pin joint of input shaft cover both ends is in the casing, the position in the input shaft hole that the casing corresponds sets up puts the input port, output gear cup joint on the output shaft, the pin joint of output shaft both ends is in the casing, the position of one end wherein of the output shaft that the casing corresponds has seted up the output port, the output shaft is worn out and is linked firmly with the ring flange from the output port; the input end of the automobile wheel reduction mechanism is coaxially connected with the output end of the automobile, the flange plate of the automobile wheel hub is arranged at the output end of the automobile wheel reduction mechanism, and the input end and the output end are axially arranged in a vertically staggered mode, so that the aim of lifting the automobile chassis is fulfilled.

Description

Automobile wheel reduction mechanism

Technical Field

The utility model relates to an automobile transmission technology, concretely a car wheel limit reduction gears.

Background

In order to ensure the trafficability of a vehicle when the vehicle runs on a non-paved road, the ground clearance of the vehicle is usually required to be improved, particularly for off-road vehicles, the ground clearance of a vehicle chassis determines the inner performance of the vehicle to a great extent, the power output of the vehicle with the conventional structure is directly and coaxially connected with a flange plate of a vehicle hub through a half shaft, so that the conventional method for improving the ground clearance is to replace a large-size vehicle hub, and the lifting height of the chassis is very limited due to the limitation of the size of a wheel arch of the vehicle and the limitation of the size of the hub; to promote ground clearance by a wide margin, need cutting wheel arch or the whole height of vehicle suspension lifting, this kind of repacking needs the professional master to adjust the vehicle again, requires that the high degree of difficulty is big and the cost is huge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a car wheel limit reduction gears, car wheel limit reduction gears's input and vehicle output end coaxial coupling, vehicle wheel hub's ring flange setting is at car wheel limit reduction gears output, and the axial of input and output is dislocation set from top to bottom to reach the purpose of raising vehicle chassis, simultaneously the utility model discloses still can set up tire inflation channel on car wheel limit reduction gears, make the vehicle can realize automatic inflation's function.

The following technical scheme is adopted for achieving the purpose:

the utility model provides an automobile wheel reduction mechanism, includes casing and reduction gear set, its characterized in that: the speed reduction gear set comprises an input gear shaft, an idler, an output gear and an output shaft, wherein rotating shafts of the input gear shaft, the idler and the output gear are parallel to each other, the input gear shaft comprises an input shaft sleeve and a transmission gear, an input shaft hole is formed in the input shaft sleeve, an inner tooth key is arranged on the inner wall of the input shaft hole, two ends of the input shaft sleeve are pivoted in the shell, an input port is formed in the position of the input shaft hole corresponding to the shell, the transmission gear is meshed with the idler, the output gear is sleeved on the output shaft, two ends of the output shaft are pivoted in the shell, an output port is formed in the position of the shell corresponding to one end of the output shaft, and the output shaft penetrates out of the output port and is fixedly connected with the flange.

The shell consists of an inner half shell and an outer half shell, the input port is arranged on the inner half shell, and the output port is arranged on the outer half shell.

The input bearing cavity is formed in the positions, corresponding to the two ends of the input gear shaft, of the inner half shell and the outer half shell, the bearings are arranged in the input bearing cavity, the two ends of the input shaft sleeve are pivoted in the shells through the bearings, and the input port is formed in the side wall of the input bearing cavity.

Positioning columns are arranged at the positions of the two ends of the idler wheel corresponding to the inner half shell and the outer half shell, the idler wheel is sleeved on a bearing, and the bearing is sleeved on the positioning columns of the inner half shell and the outer half shell simultaneously.

Output bearing cavities are arranged at the positions of the two half shells on the inner side and the outer side, which correspond to the two ends of the output shaft, bearings are arranged in the output bearing cavities, the output shaft is pivoted on the shells through the bearings, and the output port is arranged on the side walls of the output bearing cavities of the half shells on the outer side.

A through hole axially penetrating through the output shaft and the flange is formed in the output shaft, and an inflation port is formed in the position, corresponding to the end part of the output shaft, of the inner half shell; the inflation port department be provided with interior inflation seat, the position that interior inflation seat corresponds the through-hole sets up the protruding inflation joint to the through-hole inside, be provided with low resistance bearing seal between the inner wall of inflation joint and through-hole inside port, set up outer inflation seat in through-hole outside port department.

The outer side port of the through hole is provided with an internal thread, the outer inflating seat is provided with a connecting joint, the outer wall of the connecting joint is provided with an external thread, the outer inflating seat is screwed at the internal thread through the connecting joint, the connecting joint is provided with an air vent, one end of the air vent is communicated with the through hole, and the other end of the air vent is connected with an inflating hose through a gas pipe joint.

The inner inflating seat comprises a disc-shaped body, the inflating joint is arranged at the center of the disc-shaped body, a radial channel is further formed in the disc-shaped body, and the radial channel is communicated with the inflating joint.

The inner side of the disc-shaped body is provided with a sealing ring, the periphery of the inflation port of the inner half shell is provided with a plurality of screw holes which are arranged in the circumferential direction, the position of the disc-shaped body corresponding to the screw holes is provided with a positioning hole, the sealing ring is positioned at the inner side of the positioning hole, and the screw rod penetrates through the positioning hole to be screwed on the screw hole to fix the disc-shaped body on the inner half shell.

The output shaft on set up outer tooth key, set up interior tooth key in the shaft hole of output gear, interior tooth key and outer tooth key intermeshing when the output gear cup joints on the output shaft, the both ends that lie in the output gear on the output shaft still are provided with position sleeve and jump ring, position sleeve and jump ring are to output gear axial positioning.

The end part of the output shaft corresponding to the inflation port is fixed with a positioning seat, the position of the positioning seat corresponding to the through hole is provided with a central hole, the diameter of the central hole is slightly smaller than the inner diameter of the port of the through hole, the inflation joint penetrates through the central hole to enter the through hole, the position of the through hole corresponding to the end part of the inflation joint is provided with an annular step or an annular convex ring, and the annular step or the annular convex ring is matched with the positioning seat to axially position the low-resistance shaft seal.

The flange plate and the output shaft are of an integrated structure; the input shaft sleeve and the transmission gear are of an integrated structure.

When the utility model is used, the wheel reduction mechanism is fixedly connected on the suspension of the vehicle, the lifting of the vehicle chassis can be easily realized by utilizing the mutual dislocation of the axial direction of the output end and the axial direction of the output end, the structure of the vehicle is not required to be modified, the installation is convenient and the reliability is good; in addition the utility model discloses still increase at wheel limit reduction gears and set up automatic inflation's interface channel, only need with interior inflation seat switch-on air pressure control device to with the inflation hose switch-on tire air cock of outer inflation seat, can realize automatic control and real-time supervision to the tire pressure.

Drawings

Fig. 1 is an external structural schematic diagram (one) of the present invention;

fig. 2 is an external structural diagram (ii) of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3 in accordance with the present invention;

FIG. 5 is a schematic exploded view (I) of the present invention;

fig. 6 is a schematic view (ii) of the exploded structure of the present invention;

fig. 7 is a schematic structural view of the present invention with the connecting seat added on the inner side of the housing.

Detailed Description

As shown in fig. 1-6, an automobile wheel reduction mechanism includes a housing 1 and a reduction gear set, the housing 1 is composed of an inner half housing and an outer half housing, the reduction gear set includes an input gear shaft 2, an idler gear 3, an output gear 4 and an output shaft 5, rotating shafts of the input gear shaft 2, the idler gear 3 and the output gear 4 are parallel to each other, the input gear shaft 2 includes an input shaft sleeve 21 and a transmission gear 22 which are integrated into a whole, an input shaft hole 23 is formed on the input shaft sleeve 21, an inner tooth key is arranged on an inner wall of the input shaft hole 23, input bearing cavities 15 are formed in positions of the inner half housing and the outer half housing corresponding to two ends of the input gear shaft, bearings are arranged in the input bearing cavities 15, two ends of the input shaft sleeve 21 are pivoted in the housing 1 through bearings, an input port 11 is formed in a position of the input shaft hole 23 corresponding to the inner half housing 13, and the input port 11 is formed in a side wall of the input bearing cavity 15 of the inner half housing 13.

The transmission gear 22 is engaged with the idle gear 3, positioning posts 16 are arranged at the positions of the inner and outer half shells corresponding to the two ends of the idle gear 3, the idle gear 3 is sleeved on a bearing, and the bearing is sleeved on the positioning posts 16 of the inner and outer half shells at the same time.

The output shaft 5 is provided with an external tooth key, an internal tooth key is arranged in a shaft hole of the output gear 4, the internal tooth key is meshed with the external tooth key when the output gear 4 is sleeved on the output shaft 5, a positioning sleeve 53 and a snap spring 54 are also arranged at two ends of the output gear on the output shaft 5, and the positioning sleeve 53 and the snap spring 54 axially position the output gear 4; the output gear 4 is meshed with the idler wheel 3, output bearing cavities 17 are formed in the positions, corresponding to two ends of the output shaft 5, of the inner half shell and the outer half shell, bearings are arranged in the output bearing cavities 17, the output shaft 5 is pivoted on the shell 1 through the bearings, an output port 12 is formed in the position, corresponding to one end of the output shaft 5, of the outer half shell 14, the output port 12 is formed in the side wall of the output bearing cavity 17 of the outer half shell 14, the output shaft 5 penetrates out of the output port 12 and is fixedly connected with the flange 6, and the flange 6 and the output shaft 5 are of an integral structure.

The utility model discloses link firmly the casing of wheel limit reduction gears and the suspension of vehicle during the use, utilize the axial of output and output to misplace each other to realize raising vehicle chassis, the utility model discloses need not to reequip the structure of vehicle, simple to operate good reliability.

In addition, the utility model is additionally provided with an automatic inflation connecting channel inside the wheel-side speed reducing mechanism, a through hole 51 axially penetrating through the output shaft 5 and the flange 6 is arranged inside the output shaft 5, and an inflation port 18 is arranged at the position of the inner half shell 13 corresponding to the end part of the output shaft 5; the utility model discloses a pneumatic connection structure, including inflatable port 18, locating seat 9, the diameter of centre bore is less than the internal diameter of through-hole 51 port slightly, inflatable port 18 department be provided with interior inflatable seat 7 in, the position that interior inflatable seat 7 corresponds through-hole 51 is provided with the bellied pneumatic connection 71 of through-hole inside, the end fixing that corresponds inflatable port 18 at output shaft 5 has locating seat 9, the position department that locating seat 9 corresponds through-hole 51 has seted up the centre bore, pneumatic connection 71 pass the centre bore and enter into in the through-hole 51, be provided with low resistance bearing seal 10 between the inner wall of pneumatic connection 71 and through-hole 51 inside port, be provided with cyclic annular step or cyclic annular bulge loop in through-hole 51 inner wall correspondence inflatable connection 71 tip position department, cyclic annular step or cyclic annular bulge loop and locating seat 9 cooperation carry out axial positioning to low resistance bearing seal 10.

An outer inflating seat 8 is arranged at the outer port of the through hole 51; an internal thread 52 is formed at the end opening of the outer side of the through hole 51, a connecting joint 81 is arranged on the outer inflating seat 8, an external thread is arranged on the outer wall of the connecting joint 81, the outer inflating seat 8 is screwed at the internal thread 52 through the connecting joint 81, a vent hole 82 is formed in the connecting joint 81, one end of the vent hole 82 is communicated with the through hole 51, and the other end of the vent hole 82 is connected with an inflating hose 84 through an air pipe joint 83.

The inner inflating seat 7 comprises a disc-shaped body 72, the inflating joint 71 is arranged at the center of the disc-shaped body 72, a radial channel 73 is further formed in the disc-shaped body 72, and the radial channel 73 is communicated with the inflating joint 71; the inner side of the disc-shaped body 72 is provided with a sealing ring 74, the periphery of the inflation port of the inner half shell 13 is provided with a plurality of circumferentially arranged screw holes, the disc-shaped body 72 is provided with positioning holes corresponding to the screw holes, the sealing ring 74 is positioned at the inner side of the positioning holes, and the screw penetrates through the positioning holes to be screwed on the screw holes to fix the disc-shaped body 72 on the inner half shell 13.

The utility model adds an automatic inflation connecting channel at the wheel-side speed reducing mechanism, the automatic inflation connecting channel is a closed channel, and the sealing performance between the inflation joint 71 of the static part and the inner through hole 51 of the output shaft 5 of the rotating part is realized by using the low-resistance shaft seal 10; when the pneumatic tire is used, the inner inflating seat is only required to be communicated with the pneumatic control device, the inflating hose of the outer inflating seat is communicated with the tire air nozzle, the pneumatic control device can accurately detect data such as temperature and air pressure inside the tire through the inductor, meanwhile, the air pressure of the tire is controlled in real time, and the pneumatic tire is very convenient to use and improves the comfort and safety of driving.

As shown in fig. 7, to structural difference of vehicle front and rear axle and different model motorcycle types, the utility model discloses still linked firmly connecting seat 19 on half casing 13 in the inboard, connecting seat 19 corresponds input port 11's position and has seted up dodge hole 191, makes the wheel limit reduction gears commonality better through changing connecting seat 19.

Claims

1. The utility model provides an automobile wheel reduction gears, includes casing (1) and reduction gear group, its characterized in that: the speed reduction gear set comprises an input gear shaft (2), an idler (3), an output gear (4) and an output shaft (5), rotating shafts of the input gear shaft (2), the idler (3) and the output gear (4) are parallel to each other, the input gear shaft (2) comprises an input shaft sleeve (21) and a transmission gear (22), an input shaft hole (23) is formed in the input shaft sleeve (21), two ends of the input shaft sleeve (21) are pivoted in the shell (1), an input port (11) is formed in the position, corresponding to the input shaft hole (23), of the shell (1), the transmission gear (22) is meshed with the idler (3), the output gear (4) is sleeved on the output shaft (5), the output gear (4) is meshed with the idler (3), two ends of the output shaft (5) are pivoted in the shell (1), an output port (12) is formed in the position, corresponding to one end of the output shaft (5) of the shell (1), and the output shaft (5) penetrates out of the output port (12) and is fixedly connected with the flange (6).

2. The wheel-side decelerating mechanism for an automobile as claimed in claim 1, wherein: the shell (1) consists of an inner half shell and an outer half shell, the input port (11) is arranged on the inner half shell (13), and the output port (12) is arranged on the outer half shell (14).

3. The wheel-side decelerating mechanism for an automobile as claimed in claim 2, wherein: the input gear shaft structure is characterized in that input bearing cavities (15) are arranged at positions, corresponding to two ends of the input gear shaft, of the inner half shell and the outer half shell, bearings are arranged in the input bearing cavities (15), two ends of an input shaft sleeve (21) are pivoted in the shell (1) through the bearings, and the input port (11) is formed in the side wall of the input bearing cavity (15) of the inner half shell (13).

4. The hub reduction mechanism for an automobile according to claim 2, wherein: positioning columns (16) are arranged at the positions of the two ends of the idler pulley (3) corresponding to the inner half shell and the outer half shell, the idler pulley (3) is sleeved on a bearing, and the bearing is sleeved on the positioning columns (16) of the inner half shell and the outer half shell simultaneously.

5. The wheel-side decelerating mechanism for an automobile as claimed in claim 2, wherein: output bearing cavities (17) are arranged at positions of the two half shells on the inner side and the outer side, which correspond to the two ends of the output shaft (5), bearings are arranged in the output bearing cavities (17), the output shaft (5) is pivoted on the shell (1) through the bearings, and the output port (12) is arranged on the side wall of the output bearing cavity (17) of the half shell (14) on the outer side.

6. The hub reduction mechanism for an automobile according to claim 1, wherein: a through hole (51) axially penetrating through the output shaft (5) and the flange plate (6) is formed in the output shaft (5), and an inflation port (18) is formed in the position, corresponding to the end part of the output shaft (5), of the shell (1); the inflation port (18) department be provided with interior inflation seat (7), the position that interior inflation seat (7) correspond through-hole (51) sets up to the inside bellied inflation joint (71) of through-hole, be provided with low resistance bearing seal (10) between the inner wall of inflation joint (71) and through-hole (51) port, set up outer inflation seat (8) in through-hole (51) outside port department.

7. The wheel-side decelerating mechanism for an automobile as claimed in claim 6, wherein: the end part of the output shaft (5) corresponding to the inflation port (18) is fixed with a positioning seat, a central hole is formed in the position of the positioning seat (9) corresponding to the through hole (51), the diameter of the central hole is slightly smaller than the inner diameter of the port of the through hole (51), the inflation joint (71) penetrates through the central hole to enter the through hole (51), an annular step or an annular convex ring is arranged at the position of the end part of the inflation joint (71) corresponding to the inner wall of the through hole (51), and the annular step or the annular convex ring is matched with the positioning seat (9) to axially position the low-resistance shaft seal (10).

8. The wheel-side decelerating mechanism for an automobile as claimed in claim 6, wherein: through-hole (51) outside port department seted up internal thread (52), outer inflating seat (8) on be provided with attach fitting (81), be provided with the external screw thread on the outer wall of attach fitting (81), outer inflating seat (8) connect in internal thread (52) department through attach fitting (81) soon, air vent (82) have been seted up on attach fitting (81), air vent (82) one end communicates with each other with through-hole (51), air vent (82) other end passes through air pipe connector (83) and is connected with inflatable hose (84).

9. The wheel-side decelerating mechanism for an automobile as claimed in claim 6, wherein: the inner inflating seat (7) comprises a disc-shaped body (72), the inflating joint (71) is arranged at the center of the disc-shaped body (72), a radial channel (73) is further formed in the disc-shaped body (72), and the radial channel (73) is communicated with the inflating joint (71).

10. The wheel-side reduction mechanism for an automobile according to claim 9, wherein: the inner side of the disc-shaped body (72) is provided with a sealing ring (74), the periphery of the inflation port of the inner half shell (13) is provided with a plurality of circumferentially arranged screw holes, the disc-shaped body (72) is provided with positioning holes corresponding to the screw holes, the sealing ring (74) is positioned on the inner side of the positioning holes, and the screw penetrates through the positioning holes to be screwed on the screw holes to fix the disc-shaped body (72) on the inner half shell (13).