CN214492395U - Steering drive axle with disc brake - Google Patents
Steering drive axle with disc brake Download PDFInfo
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- CN214492395U CN214492395U CN202023092619.XU CN202023092619U CN214492395U CN 214492395 U CN214492395 U CN 214492395U CN 202023092619 U CN202023092619 U CN 202023092619U CN 214492395 U CN214492395 U CN 214492395U
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Abstract
The utility model relates to a steering drive axle with disc brake, including axle housing assembly, the differential mechanism assembly between the wheels who establishes in axle housing assembly middle part, respectively with the differential mechanism assembly between the wheels about both ends cooperation be connected left semi-axis and right semi-axis, with the main reducer assembly that the axle housing assembly middle part is connected, connect in the knuckle assembly of axle housing assembly about both ends knuckle assembly, with the brake caliper assembly of knuckle assembly fixed connection, with the hub reduction gear that the knuckle assembly cooperation is connected; the brake caliper assembly comprises a brake caliper shell, a brake chamber, a brake disc and a mounting plate; the brake caliper shell is fixedly connected with the steering knuckle assembly through bolts and a mounting plate, and the brake air chamber is fixedly connected with the brake caliper shell; the diameter of the brake disc is 22.5 inches. The utility model discloses output torque is big, bearing capacity is strong, cross country nature is good, braking torque is big, steering angle is big to better braking thermal stability and braking reliability have.
Description
Technical Field
The utility model relates to an automobile transmission system, concretely relates to take disc brake's steering drive axle.
Background
In a conventional automobile transmission system, a drum brake is often used. The drum brake has the defects of simple structure, low cost, poor braking efficiency, influence on braking stability, poor heat dissipation and the like. Therefore, in some automobile transmission systems, a disc brake is adopted; the automobile transmission system comprises a driving speed change mechanism, a driving axle housing assembly, an inner half shaft, a three-pin constant-velocity universal joint, an outer half shaft and a brake caliper assembly; the driving speed change mechanism is arranged in the driving axle housing assembly and is connected with the steering wheel through an inner half shaft and an outer half shaft at two ends of the driving axle housing assembly; the inner half shaft is connected with the outer half shaft through a three-pin constant velocity universal joint; the inner half shaft penetrates through a sleeve, a supporting seat is arranged on the sleeve, a steering knuckle shell is arranged on the supporting seat, a pair of concentric pin shafts serving as steering main pins are arranged in two concentric holes in radial arrangement of the steering knuckle shell, the pin shafts are assembled with the steering knuckle through a pair of tapered roller bearings, a steering knuckle arm connected with a steering rod is fixed at the upper end of the steering knuckle, a steering trapezoid arm connected with a steering cross rod is fixed at the lower end of the steering knuckle, and a brake caliper assembly is installed on a steering knuckle shaft neck. The disc type braking steering drive axle has strong trafficability, climbing performance and obstacle crossing capability under bad road conditions, but has limited application range and higher cost. Therefore, improvements are needed.
CN201619448U discloses "increase type cross country vehicle steering drive axle", including front drive axle housing, final drive, differential, left semi-axis, right semi-axis, differential lock, left disc brake, right disc brake, left reduction gear and right reduction gear. The differential lock fixed meshing sleeve is arranged on the differential mechanism shell, the differential lock sliding meshing sleeve is arranged at the right end of the left half shaft, the differential lock vacuum pump is arranged on the left side of the main speed reducer, a shifting fork is connected to the differential lock vacuum pump, and the shifting fork drives the differential lock sliding meshing sleeve to be connected with or separated from the differential lock fixed meshing sleeve; the shells of the two wheel-side reducers are respectively connected with a front driving axle housing through a left steering arm and a right steering arm, driving gears of the two wheel-side reducers are respectively connected with the left end of a left half shaft and the right end of a right half shaft through a ball cage type constant velocity universal joint, driven gears of the two wheel-side reducers are provided with output shafts, and the reverse sides of the output shafts are provided with brake discs of disc brakes. The road surface has strong trafficability, climbing and obstacle surmounting properties under bad road conditions. The technical solution disclosed in this patent document is, of course, a useful attempt in the technical field.
Disclosure of Invention
The utility model aims at providing a take disc brake's steering drive axle, its output torque is big, bearing capacity is strong, cross country nature is good, braking torque is big, steering angle is big to have better braking thermostability and braking reliability, and the cost is lower.
Steering drive axle of band disc brake, including the axle housing assembly, establish the differential mechanism assembly between the wheel in axle housing assembly middle part, respectively with the wheel between about the differential mechanism assembly both ends cooperation be connected left semi-axis and right semi-axis, with axle housing assembly middle part is connected and is connected with wheel between differential mechanism assembly complex main reducer assembly, connection the knuckle assembly at both ends about the axle housing assembly, with knuckle assembly fixed connection's braking pincers assembly, with the wheel reduction gear that the cooperation of knuckle assembly is connected, characterized by: the brake caliper assembly comprises a brake caliper shell, a brake chamber, a brake disc and a mounting plate; the brake caliper shell is fixedly connected with the steering knuckle assembly through bolts and a mounting plate, and the brake air chamber is fixedly connected with the brake caliper shell; the diameter of the brake disc is 22.5 inches.
Further, the wheel-side speed reducer is of a planetary gear speed reduction transmission structure and comprises a sun gear; the hub reduction gear is fixedly connected with the hub assembly; the brake disc is fixedly connected with the hub assembly; and a friction pair formed by the brake caliper assembly and the brake disc realizes service braking under the action of air pressure through the control of the brake air chamber.
Further, the steering knuckle assembly is connected with the axle housing assembly in a matched mode; the steering knuckle assembly is fixedly connected with the tie rod arm through a bolt; the tie rod arm is connected with the movable joint and the tie rod in a matching mode to form a steering trapezoid arm, and left-right steering linkage is achieved.
Further, the main reducer assembly is a single-stage main reducer driven by a hyperboloid gear, and comprises a supporting shell, a driving gear, a driven gear, a bearing seat, a transmission flange and a locking nut; a driven gear of the main speed reducer assembly is fixedly connected to the inter-wheel differential assembly through a bolt; the driving gear of the main reducer assembly is of a gear shaft structure, the front end and the rear end of the driving gear are respectively supported by a cylindrical roller bearing and two tapered roller bearings, and a bearing seat for mounting the two tapered roller bearings is fixedly connected with a supporting shell of the main reducer assembly through a bolt; the lower end of the driving gear is provided with an external spline and an external thread, and the transmission flange is matched with the spline on the lower end of the driving gear and is fastened by a locking nut.
Furthermore, one end of the left half shaft and one end of the right half shaft are respectively connected with the inter-wheel differential assembly in a spline fit manner; the other ends of the left half shaft and the right half shaft are respectively connected with a sun gear of the wheel-side reducer assembly in a matching manner.
Furthermore, a jaw-type free wheel differential mechanism is arranged in the inter-wheel differential mechanism assembly, and a driving ring and a driven ring of the jaw-type free wheel differential mechanism are automatically jointed and separated under the condition of changing the rotating speed, so that the differential speed is realized.
Further, the hub reduction gear is connected with a steering knuckle assembly in a matched manner, and the steering knuckle assembly is connected with the axle housing assembly in a matched manner through an upper main pin and a lower main pin; the hub reduction gear is fixedly connected with the brake disc through bolts.
The utility model has the advantages that:
(1) the driving axle has the belt disc type brake steering, the total braking torque of the driving axle is large, and the designs endow the optimal safety and the long service life.
(2) The hyperboloid gear pair with high bearing capacity is used for transmission, and the transmission capacity of torque is higher; the double-stage reduction bridge with the wheel-side speed reducer increases the ground clearance of the whole vehicle, improves the driving performance under severe working conditions and enhances the adaptability to various road conditions; the large speed ratio range meets the professional requirements of customers;
to sum up, the utility model discloses an output torque is big, bearing capacity is high, the off-road nature is good, braking torque is big, and steering angle is big, low in manufacturing cost to have better braking heat stability and braking reliability, and easily form a series of products.
Drawings
Fig. 1 is a schematic structural view of the utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 2;
in the figure:
1, an axle housing assembly;
2-inter-wheel differential assembly, 21-left half shaft, 22-right half shaft, 23-jaw free wheel differential;
3-main reducer assembly, 30-supporting shell, 31-driving gear, 32-driven gear, 33-bearing seat, 34-driving flange, 35-locking nut,
4-a steering knuckle assembly, 41-a tie rod arm, 42-a tie rod, 43-an upper main pin, 44-a lower main pin, 45-a movable joint;
5-a brake caliper assembly, 50-a brake caliper shell, 51-a brake chamber, 52-a brake disc, 53-a mounting plate;
6-wheel reduction gear, 61-sun gear;
7-hub assembly.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the steering drive axle with a disc brake comprises an axle housing assembly 1, an inter-wheel differential assembly 2 arranged in the middle of the axle housing assembly, a left half shaft 21 and a right half shaft 22 respectively connected with the left end and the right end of the inter-wheel differential assembly in a matching manner, a main reducer assembly 3 connected with the middle of the axle housing assembly 1 and matched with the inter-wheel differential assembly 2, a knuckle assembly 4 connected with the left end and the right end of the axle housing assembly 1, a brake caliper assembly 5 fixedly connected with the knuckle assembly 4, and a hub reduction gear 6 connected with the knuckle assembly 4 in a matching manner, and is substantially characterized in that:
the brake caliper assembly 5 comprises a caliper housing 50, a brake air chamber 51, a brake disc 52 and a mounting plate 53; the brake caliper housing 50 is fixedly connected with the knuckle assembly 4 through bolts and a mounting plate 53, and the brake air chamber 51 is fixedly connected with the brake caliper housing 50; the brake disc 52 has a diameter of 22.5 inches.
The wheel-side reducer 6 is of a planetary gear reduction transmission structure and comprises a sun gear 61; the hub reduction gear 6 is fixedly connected with the hub assembly 7; the brake disc 52 is fixedly connected with the hub assembly 7; the friction pair formed by the brake caliper assembly 5 and the brake disc 52 realizes service braking under the action of air pressure through the control of the brake air chamber 51.
The steering knuckle assembly 4 is connected with the axle housing assembly 1 in a matched mode; the steering knuckle assembly 4 is fixedly connected with the tie rod arm 41 through a bolt; the tie rod arm 41 is connected with the movable joint 45 and the tie rod 42 in a matching manner to form a steering trapezoid arm, so that left and right steering linkage is realized.
The main reducer assembly 3 is a single-stage main reducer driven by a hyperboloid gear, and comprises a supporting shell 30, a driving gear 31, a driven gear 32, a bearing seat 33, a driving flange 34 and a locking nut 35; the driven gear 32 of the main speed reducer assembly 3 is fixedly connected to the inter-wheel differential assembly 2 through a bolt; the driving gear 31 of the main reducer assembly is of a gear shaft structure, the front end and the rear end of the driving gear are respectively supported by a cylindrical roller bearing and two tapered roller bearings, and a bearing seat 33 for mounting the two tapered roller bearings is fixedly connected with a supporting shell 30 of the main reducer assembly 3 through a bolt; the lower end of the driving gear 31 is provided with an external spline and an external thread, and the transmission flange 34 is matched with the spline on the lower end of the driving gear 31 and is fastened by a locking nut 35.
One end of each of the left half shaft 21 and the right half shaft 22 is in spline fit connection with the inter-wheel differential assembly 2; the other ends of the left half shaft 21 and the right half shaft 22 are respectively connected with a sun gear 61 of the wheel-side reducer assembly 6 in a matching way.
A jaw-type free wheel differential mechanism 23 is arranged in the inter-wheel differential mechanism assembly 2, and a driving ring and a driven ring of the jaw-type free wheel differential mechanism 23 are automatically jointed and separated under the condition of changing the rotating speed, so that differential speed is realized.
The hub reduction gear 6 is connected with the steering knuckle assembly 4 in a matching way, and the steering knuckle assembly 4 is connected with the axle housing assembly 1 in a matching way through an upper main pin 43 and a lower main pin 44; the hub reduction gear 6 is fixedly connected with the brake disc 52 through bolts.
The brake caliper assembly is connected with mounting plates arranged at the left end and the right end of the steering knuckle assembly in a matched mode; the brake disc of the wheel-side reducer is connected with a wheel hub assembly on the wheel-side reducer assembly arranged at the left end and the right end of the axle housing assembly in a matching manner; the friction pair is composed of the brake caliper assembly and a brake disc on the wheel-side speed reducer; and a brake disc of the hub reduction gear is fixedly connected with the hub assembly through a bolt. The utility model discloses turn to that the angle is big, output torque is big, bearing capacity is strong, cross country nature is good, braking torque is big, and it is big to turn to the angle to have better braking thermal stability and braking reliability.
Claims (7)
1. The utility model provides a take disc brake's steering drive axle, includes axle housing assembly (1), establishes differential mechanism assembly (2) between the wheel in axle housing assembly middle part, respectively with the differential mechanism assembly between the wheel about both ends cooperation be connected left semi-axis (21) and right semi-axis (22), with axle housing assembly (1) middle part is connected and with wheel differential mechanism assembly (2) complex main reducer assembly (3), connection between steering knuckle assembly (4) at both ends about axle housing assembly (1), with steering knuckle assembly (4) fixed connection's braking pincers assembly (5), with wheel reduction gear (6) that steering knuckle assembly (4) cooperation is connected, characterized by: the brake caliper assembly (5) comprises a brake caliper housing (50), a brake chamber (51), a brake disc (52) and a mounting plate (53); the brake caliper shell (50) is fixedly connected with the steering knuckle assembly (4) through bolts and a mounting plate (53), and the brake air chamber (51) is fixedly connected with the brake caliper shell (50); the brake disc (52) has a diameter of 22.5 inches.
2. The steering axle with disc brake of claim 1, wherein: the wheel-side speed reducer (6) is of a planetary gear speed reduction transmission structure and comprises a sun gear (61); the hub reduction gear (6) is fixedly connected with the hub assembly (7); the brake disc (52) is fixedly connected with the hub assembly (7); and a friction pair consisting of the brake caliper assembly (5) and the brake disc (52) realizes service braking under the action of air pressure through the control of the brake air chamber (51).
3. The steering axle with disc brake according to claim 1 or 2, wherein: the steering knuckle assembly (4) is connected with the axle housing assembly (1) in a matched mode; the steering knuckle assembly (4) is fixedly connected with the tie rod arm (41) through a bolt; the tie rod arm (41) is connected with the movable joint (45) and the tie rod (42) in a matched mode to form a steering trapezoid arm, and left and right steering linkage is achieved.
4. The steering axle with disc brake according to claim 1 or 2, wherein: the main speed reducer assembly (3) is a single-stage main speed reducer driven by a hyperboloid gear and comprises a supporting shell (30), a driving gear (31), a driven gear (32), a bearing seat (33), a driving flange (34) and a locking nut (35); a driven gear (32) of the main speed reducer assembly (3) is fixedly connected to the inter-wheel differential assembly (2) through a bolt; a driving gear (31) of the main reducer assembly is of a gear shaft structure, the front end and the rear end of the driving gear are respectively supported by a cylindrical roller bearing and two tapered roller bearings, and a bearing seat (33) for mounting the two tapered roller bearings is fixedly connected with a supporting shell (30) of the main reducer assembly (3) through a bolt; the lower extreme of driving gear (31) is equipped with external splines and external screw thread, transmission flange (34) with the spline fit on the lower extreme of driving gear (31) to fasten with lock nut (35).
5. The steering axle with disc brake according to claim 1 or 2, wherein: one end of each of the left half shaft (21) and the right half shaft (22) is in spline fit connection with the inter-wheel differential assembly (2) respectively; the other ends of the left half shaft (21) and the right half shaft (22) are respectively connected with a sun gear (61) of the wheel-side reducer (6) in a matching way.
6. The steering axle with disc brake according to claim 1 or 2, wherein: a jaw-type free wheel differential (23) is arranged in the inter-wheel differential assembly (2), and a driving ring and a driven ring of the jaw-type free wheel differential (23) are automatically jointed and separated under the condition of changing the rotating speed, so that differential speed is realized.
7. The steering axle with disc brake according to claim 1 or 2, wherein: the hub reduction gear (6) is connected with a steering knuckle assembly (4) in a matched mode, and the steering knuckle assembly (4) is connected with the axle housing assembly (1) in a matched mode through an upper main pin (43) and a lower main pin (44); the wheel-side speed reducer (6) is fixedly connected with the brake disc (52) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023092619.XU CN214492395U (en) | 2020-12-21 | 2020-12-21 | Steering drive axle with disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023092619.XU CN214492395U (en) | 2020-12-21 | 2020-12-21 | Steering drive axle with disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214492395U true CN214492395U (en) | 2021-10-26 |
Family
ID=78209409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023092619.XU Active CN214492395U (en) | 2020-12-21 | 2020-12-21 | Steering drive axle with disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214492395U (en) |
-
2020
- 2020-12-21 CN CN202023092619.XU patent/CN214492395U/en active Active
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