CN216733767U - Air spring suspension front axle housing assembly and engineering truck - Google Patents
Air spring suspension front axle housing assembly and engineering truck Download PDFInfo
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- CN216733767U CN216733767U CN202220027883.5U CN202220027883U CN216733767U CN 216733767 U CN216733767 U CN 216733767U CN 202220027883 U CN202220027883 U CN 202220027883U CN 216733767 U CN216733767 U CN 216733767U
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Abstract
The utility model discloses an air spring suspension front axle housing assembly and an engineering truck. According to the utility model, the suspension arrangement of the air spring and the damper is adopted, so that the vertical vibration of the frame in the driving process is reduced, and on the other hand, the longitudinal thrust rod and the transverse thrust rod limit the longitudinal displacement and the transverse displacement of the axle in the driving process, and play roles in buffering and damping, so that the comfort of the vehicle is improved; the axle housing assembly further integrates the function of a differential lock, realizes the output of large torque under the conditions of climbing and operation, further integrates the function of safe steering, and can avoid steering deviation caused by external force on a cross-country road during driving.
Description
Technical Field
The utility model relates to an air spring suspension steering driving front axle housing assembly of an engineering truck, in particular to a steering driving front axle housing assembly of a loader-digger and an engineering truck adopting the front axle housing.
Background
As is well known, a wheel loader excavator often operates in a wet and rough environment, and thus requires a front axle having a strong load bearing capacity, good passing ability, excellent shock absorption effect, and high reliability. With the continuous development of engineering machinery, the speed and the power of the wheel type excavating loader are higher and higher, and the axle of a common engineering vehicle cannot meet the requirement of a high-speed wheel type excavating loader.
Based on the above reasons, it is urgently needed to design a front steering drive axle of a high-speed wheel type multifunctional engineering vehicle, which has strong bearing capacity, good passing performance, strong adaptability and good comfort. The axle housing is designed and developed on the premise of meeting relevant requirements, and is an important component of a drive axle. The front axle housing and the corresponding rear axle housing are matched for use.
Disclosure of Invention
The utility model aims to provide an air spring suspension front axle housing assembly and an engineering truck aiming at solving the problems in the prior art, and meets the requirements of the engineering truck on bearing capacity, trafficability, damping effect and reliability.
The technical scheme of the utility model is as follows:
an air spring suspension front axle housing assembly comprises,
an axle housing body;
the left steering support and the right steering support are respectively and fixedly connected to the left end face and the right end face of the axle housing body in the length direction, and an upper rotating shaft and a lower rotating shaft are arranged on the left steering support and the right steering support;
the left-turning arm support is rotatably connected to an upper rotating shaft and a lower rotating shaft of the left turning support, and the right-turning arm support is rotatably connected to an upper rotating shaft and a lower rotating shaft of the right turning support;
the wheel hub type front wheel comprises a first front wheel hub support and a second front wheel hub support, wherein the first front wheel hub support is connected with a left-turning arm frame, the second front wheel hub support is connected with a right-turning arm frame, a wheel hub speed reducer is arranged outside the first front wheel hub support and the second front wheel hub support, and a half shaft is arranged inside the first front wheel hub support and the second front wheel hub support;
the left upper thrust rod mounting seat and the right upper thrust rod mounting seat are positioned between the left steering support and the right steering support and connected to the upper surface of the axle housing body along the axis direction of the axle housing body;
the left air spring seat and the right air spring seat are connected to the lower surface of the axle housing body, the left air spring seat is arranged between the left upper thrust rod mounting seat and the left steering support along the axis direction of the axle housing body, the right air spring seat is arranged between the right upper thrust rod mounting seat and the right steering support, the upper surface of the left air spring seat is provided with a left air spring, and the upper surface of the right air spring seat is provided with a right air spring;
the axle housing mounting flange is positioned in the middle of the axle housing body in the axial direction, and the axis of the axle housing mounting flange is perpendicular to the axis of the axle housing body;
the mounting seat of the differential air lock chamber and the mounting seat of the differential air lock chamber are connected to the upper surface of the right air spring seat;
the right lower thrust rod mounting seat is connected to the lower surface of the right air spring seat;
the left air spring seat is connected with the left air spring seat through a left air spring, and the right air spring limiting belt is connected with the right air spring seat through a right air spring limiting belt;
the left suspension damper mounting seat and the left suspension damper limiting belt mounting seat are connected to the upper surface of the left air spring seat;
the left lower thrust rod mounting seat is connected to the lower surface of the left air spring seat;
the left air spring limiting belt mounting seat and the left balance valve pull rod mounting seat are connected to the front end face of the left air spring seat;
and the transverse thrust rod mounting hole is formed in the rear end face of the right air spring seat.
Alternatively, the axle housing body may be formed, in the axial direction of the axle housing body,
the left steering support and the right steering support are symmetrically arranged about the axle housing body;
the left upper thrust rod mounting seat and the right upper thrust rod mounting seat are symmetrically arranged relative to the axle housing body;
the left air spring seat and the right air spring seat are symmetrically arranged around the axle housing body.
Alternatively, the left steering support and the right steering support are connected with the axle housing body through flange structures and bolts inserted in the flange structures.
As an option, air spring hangs front axle shell assembly still includes air vent and differential lockhole, air vent and differential lockhole all are located the axle housing body, and set up respectively in axle housing mounting flange's both sides along axle housing body axis direction, and the air vent is connected with the breather valve through the pipeline, and the breather valve is fixed on the frame.
As an alternative to this, the first and second,
the left upper thrust rod mounting seat and the right upper thrust rod mounting seat are welded on the upper surface of the axle housing body;
the left air spring seat and the right air spring seat are welded on the lower surface of the axle housing body;
the differential air lock chamber mounting seat, the right suspension damper mounting seat and the right suspension damper limiting belt mounting seat are welded on the upper surface of the right air spring seat;
the right lower thrust rod mounting seat is welded on the lower surface of the right air spring seat;
the tie rod damper mounting seat, the right air spring limiting belt mounting seat and the right balance valve pull rod mounting seat are welded on the front end face of the right air spring seat;
the left suspension damper mounting seat and the left suspension damper limiting belt mounting seat are welded on the upper surface of the left air spring seat;
the left lower thrust rod mounting seat is welded on the lower surface of the left air spring seat;
and the left air spring limiting belt mounting seat and the left balance valve pull rod mounting seat are welded on the front end face of the left air spring seat.
Alternatively, the air spring suspension front axle housing assembly further comprises,
one end of the left suspension damper is connected with the left suspension damper mounting seat, and the other end of the left suspension damper is connected with the frame;
one end of the right suspension damper is connected with the right suspension damper mounting seat, and the other end of the right suspension damper is connected with the frame;
the left suspension damper limiting belt is connected with the frame and the left suspension damper limiting belt mounting seat at two ends respectively;
and the two ends of the right suspension damper limiting belt are respectively connected with the frame and the right suspension damper limiting belt mounting seat.
Alternatively, the air spring suspension front axle housing assembly further comprises,
the two ends of the lower right thrust rod are respectively connected with the lower right thrust rod mounting seat and the frame;
the two ends of the right upper thrust rod are respectively connected with the right upper thrust rod mounting seat and the frame;
the two ends of the lower left thrust rod are respectively connected with the lower left thrust rod mounting seat and the frame;
and two ends of the upper left thrust rod are respectively connected with the upper left thrust rod mounting seat and the frame.
Alternatively, the air spring suspension front axle housing assembly further comprises,
the small cavity end of the tie rod damper is connected with the tie rod damper mounting seat, and the large cavity end of the tie rod damper is connected with the tie rod;
one end of the balance valve pull rod is connected with the left balance valve pull rod mounting seat or the right balance valve pull rod mounting seat, and the other end of the balance valve pull rod is connected with a balance valve on the frame;
and one end of the transverse thrust rod is connected with the transverse thrust rod mounting hole, and the other end of the transverse thrust rod is connected with the frame.
An engineering vehicle comprises the air spring suspension front axle housing assembly.
Compared with the prior art, the utility model has the following advantages:
(1) the front axle housing assembly is formed by connecting and combining an axle housing body, a left steering support, a right steering support, a left steering arm, a right steering arm and a wheel core support through bolts;
(2) the front axle housing assembly is connected with the frame through an air spring and a limit belt thereof, a damper and a limit belt thereof, a plurality of longitudinal thrust rods and 1 transverse thrust rod;
(3) the front axle shell assembly integrates the functions of a differential lock, safe steering, automatic leveling and the like;
(4) the front axle housing assembly meets the requirement of wading depth (for example, the depth is more than 1.2 meters, and the concrete wading depth is determined according to the installation height of the vent valve on the vehicle frame) through the vent hole.
Drawings
FIG. 1 is a schematic view of a front axle housing assembly of the present invention;
FIG. 2 is an exploded view of the front axle housing assembly of the present invention;
FIG. 3 is a schematic view of a right air spring seat of the present invention;
FIG. 4 is an assembly view of the front axle housing assembly of the present invention;
in the drawings, 1, a first front wheel core support; 2. a left-turning arm support; 3. a left steering support; 4. a left upper thrust rod mounting seat; 5, mounting a right upper thrust rod; 6. an axle housing body; 7, a right steering support; 8. a right-turn arm support; 9. a second front wheel core support; 10. a right air spring seat; 11. a left air spring seat; 12. a differential air lock chamber mounting seat; 13, hanging a damper limit belt mounting seat on the right; 14. a right suspension damper mount; 15. a right lower thrust rod mounting seat; 16. a tie rod damper mount; 17, a mounting seat for a limit belt of the right air spring; 18. a right balance valve pull rod mounting seat; 19. a left lower push rod mounting seat; 20. a left balance valve pull rod mounting seat; 21. a left air spring mounting seat; 22. a left suspension damper mounting seat; 23, hanging a damper limit belt mounting seat on the left; 101. a left suspension damper; 102. a left suspension damper limit belt; 103. a left air spring; 104. a lateral thrust rod; 105 a right suspension damper; 106. a right suspension damper limit belt; 107. a differential air lock chamber; 108. a right air spring; 109. a lower right thrust bar; 110. a tie rod damper; 111. an upper right thrust bar; 112 lower left thrust bar; 113 left upper thrust bar.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made based on the common technical knowledge and conventional means in the art without departing from the technical idea of the present invention are included in the scope of the present invention.
As shown in fig. 1 to 4, the left steering support 3 and the right steering support 7 are symmetrical left and right and are connected to the axle housing body 6 through 18 bolts and flange structures;
the left-turning arm support 2 is arranged on the left-turning support 3 through a bearing and can rotate around an upper rotating shaft and a lower rotating shaft of the left-turning support 3;
the first front wheel core support 1 is fixed on a left-turning arm frame 2 by bolts, a wheel-side reducer can be installed outside, and a half shaft is installed inside to transmit rotating speed and torque;
the right turning arm support 8 is arranged on the left turning support 7 through a bearing and can rotate around the upper shaft and the lower shaft of the left turning support 7;
a second front wheel core support 9 is fixed on the left-turning arm support 8 by bolts, a wheel-side reducer can be installed outside, and a half shaft is installed inside to transmit the rotating speed and the torque;
the left upper thrust rod mounting seat 4 and the right upper thrust rod mounting seat 5 are bilaterally symmetrical and welded on the upper surface of the axle housing body 6;
the left air spring seat 11 and the right air spring seat 10 are arranged in bilateral symmetry and welded to the lower surface of the axle housing body 6;
a flange in the middle of the axle housing body 6 is used for mounting a main speed reducer assembly with a differential mechanism;
the upper surface of the left side of the axle housing body 6 is provided with a vent hole;
holes of the differential lock are arranged on the right side of the axle housing body 6;
the differential air lock chamber mounting seat 12 is welded on the upper surface of the right air spring seat 10, and the differential air lock chamber 107 is mounted on the front axle housing assembly through the differential air lock chamber mounting seat 12;
a right suspension damper mounting seat 14 and a right suspension damper limiting belt mounting seat 13 are welded on the upper surface of the right air spring seat 10;
the lower right thrust rod mounting seat 15 is welded on the lower surface of the right air spring seat 10;
a tie rod damper mounting seat 16, a right air spring limit belt mounting seat 17 and a right balance valve tie rod mounting seat 18 are welded on the front end surface of the right air spring seat 10;
the left suspension damper mounting seat 22 and the left suspension damper limiting belt mounting seat 23 are welded on the upper surface of the left air spring seat 11;
the lower left thrust rod mounting seat 19 is welded on the lower surface of the left air spring seat 11;
a left air spring limiting belt mounting seat 21 and a left balance valve pull rod mounting seat 20 are welded on the front end face of the left air spring seat 11;
as shown in fig. 3, the lateral thrust rod mounting hole 24 is formed in the rear surface of the right air spring seat 10, and is integrated with the right air spring seat 10.
The working principle of the front axle shell assembly is as follows:
the front axle housing structure of the utility model meets the requirements of suspension installation of the air spring and the damper. As shown in fig. 3, one end of the left suspension damper 101 is mounted on the left suspension damper mounting seat 22, the other end is mounted on the vehicle frame, one end of the right suspension damper 105 is mounted on the right suspension damper mounting seat 14, and the other end is mounted on the vehicle frame for supporting the vehicle and absorbing shock, so as to improve the driving comfort of the vehicle; the left suspension damper limiting belt mounting seat 23 and the right suspension damper limiting belt mounting seat 13 are connected with the frame through a left suspension damper limiting belt 102 and a right suspension damper limiting belt 106 to limit the maximum stroke range of the dampers;
the upper left thrust rod mounting seat 4, the upper right thrust rod mounting seat 5, the lower left thrust rod mounting seat 19 and the lower right thrust rod mounting seat 15 are connected with the frame through an upper left thrust rod 113, an upper right thrust rod 111, a lower left thrust rod 112 and a lower right thrust rod 109 and are used for longitudinal connection, fixation and shock absorption;
the differential lock chamber mounting seat 12 and the differential lock hole on the axle housing body 6 are used for mounting a differential lock mechanism, so that a differential mechanism is locked when large torque is output;
an axle housing mounting flange on the axle housing body 6 is used for mounting a main speed reducer assembly and is used for transmitting and outputting rotating speed and torque;
the axle housing body 6 is structurally reinforced, is forged by high-strength materials and is used for bearing higher load;
the left air spring mounting seat 11 and the right air spring mounting seat 10 are used for mounting a left air spring 103 and a right air spring 108, so that the functions of supporting a frame and damping are realized, and the riding comfort is improved; the left air spring limit belt mounting seat 22 and the right air spring limit belt mounting seat 14 are used for mounting a left suspension damper limit belt 102 and a right suspension damper limit belt 106 and limiting the limit positions of the up-and-down movement of the air springs;
the tie rod damper mounting base 16 is used for mounting a small cavity of the tie rod damper 110, and a large cavity of the tie rod damper 110 is mounted on a tie rod, so that the problem of automatic steering deflection after being interfered by external force is solved;
the left balance valve pull rod mounting seat 20 and the right balance valve pull rod mounting seat 18 are used for mounting a balance valve pull rod, the balance valve pull rod is connected with a balance valve, the balance valve is mounted on a frame, and the left and right air bags are automatically controlled to be inflated and deflated through the balance valve, so that the left and right automatic leveling function of the vehicle in the uneven road surface can be realized;
the transverse thrust rod mounting hole 24 (see fig. 3) is used for mounting one end of a transverse thrust rod 104, and the other end of the transverse thrust rod 104 is connected with the frame to realize transverse connection, fixation and shock absorption;
the vent hole on the axle housing is connected to the vent valve through a pipeline, the vent valve is fixed above the frame and has a wading height of more than 1.2 meters, the air pressure balance of the inner cavity of the axle housing is realized, and the wading requirement is met.
The front axle shell assembly mainly plays a role in supporting and steering, is used for bearing the weight above a frame, and reduces the vertical vibration of the frame in the running process by adopting the suspension arrangement of an air spring and a damper; the arrangement of the longitudinal thrust rod and the transverse thrust rod is used for limiting the longitudinal displacement and the transverse displacement of the axle in the driving process, and the functions of buffering and damping are achieved, so that the comfort of the vehicle is improved; the axle housing assembly also integrates the function of a differential lock, realizes the output of large torque under the working conditions of climbing and operation, integrates the function of safe steering, and can avoid steering deviation caused by external force on a cross-country road during driving. A driving level valve can be installed to automatically control the inflation and deflation of the air spring, so that the vehicle can be kept level when the road surface is uneven.
The front axle housing assembly is suitable for an air spring suspension system of an engineering vehicle (such as a wheel type excavating loader), and can be applied to various engineering vehicles requiring axles to have strong bearing capacity, good trafficability, excellent damping effect and high reliability.
Claims (9)
1. The utility model provides an air spring hangs front axle shell assembly which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
an axle housing body (6);
the steering axle comprises a left steering support (3) and a right steering support (7), wherein the left steering support (3) and the right steering support (7) are respectively and fixedly connected to the left end surface and the right end surface of the axle housing body (6) in the length direction, and an upper rotating shaft and a lower rotating shaft are respectively arranged on the left steering support (3) and the right steering support (7);
the left-turning arm support (2) is rotatably connected to an upper rotating shaft and a lower rotating shaft of the left turning support (3), and the right-turning arm support (8) is rotatably connected to an upper rotating shaft and a lower rotating shaft of the right turning support (7);
the front wheel hub assembly comprises a first front wheel hub support (1) and a second front wheel hub support (9), wherein the first front wheel hub support (1) is connected with a left-turn arm frame (2), the second front wheel hub support (9) is connected with a right-turn arm frame (8), wheel-side reducers are arranged outside the first front wheel hub support (1) and the second front wheel hub support (9), and half shafts are arranged inside the first front wheel hub support and the second front wheel hub support;
the left upper thrust rod mounting seat (4) and the right upper thrust rod mounting seat (5) are positioned between the left steering support (3) and the right steering support (7) and connected to the upper surface of the axle housing body (6) along the axis direction of the axle housing body (6);
the air spring comprises a left air spring seat (11) and a right air spring seat (10), wherein the left air spring seat (11) and the right air spring seat (10) are connected to the lower surface of the axle housing body (6), the left air spring seat (11) is arranged between an upper left thrust rod mounting seat (4) and a left steering support (3) along the axis direction of the axle housing body (6), the right air spring seat (10) is arranged between an upper right thrust rod mounting seat (5) and a right steering support (7), a left air spring (103) is mounted on the upper surface of the left air spring seat (11), and a right air spring (108) is mounted on the upper surface of the right air spring seat (10);
the axle housing mounting flange is positioned in the middle of the axle housing body (6) in the axial direction, and the axis of the axle housing mounting flange is perpendicular to the axis of the axle housing body (6);
the air spring comprises a differential air lock chamber mounting seat (12), a right suspension damper mounting seat (14) and a right suspension damper limiting belt mounting seat (13), wherein the differential air lock chamber mounting seat (12) and the differential air lock chamber mounting seat (12) are connected to the upper surface of a right air spring seat (10);
the right lower thrust rod mounting seat (15), the right lower thrust rod mounting seat (15) is connected to the lower surface of the right air spring seat (10);
the air spring device comprises a tie rod damper mounting seat (16), a right air spring limiting belt mounting seat (17) and a right balance valve tie rod mounting seat (18), wherein the tie rod damper mounting seat (16), the right air spring limiting belt mounting seat (17) and the right balance valve tie rod mounting seat (18) are all connected with the front end face of a right air spring seat (10);
the left suspension damper mounting seat (22) and the left suspension damper limiting belt mounting seat (23) are connected to the upper surface of the left air spring seat (11);
the lower left thrust rod mounting seat (19) is connected to the lower surface of the left air spring seat (11);
the left air spring limiting belt mounting seat (21) and the left balance valve pull rod mounting seat (20) are connected to the front end face of the left air spring seat (11);
and the transverse thrust rod mounting hole (24) is formed in the rear end face of the right air spring seat (10).
2. An air spring suspension front axle housing assembly as set forth in claim 1 wherein: along the axial direction of the axle housing body (6),
the left steering support (3) and the right steering support (7) are symmetrically arranged relative to the axle housing body (6);
the left upper thrust rod mounting seat (4) and the right upper thrust rod mounting seat (5) are symmetrically arranged relative to the axle housing body (6);
the left air spring seat (11) and the right air spring seat (10) are symmetrically arranged relative to the axle housing body (6).
3. An air spring suspension front axle housing assembly as set forth in claim 1 wherein: the left steering support (3) and the right steering support (7) are connected with the axle housing body (6) through flange structures and bolts inserted in the flange structures.
4. An air spring suspension front axle housing assembly as set forth in claim 1 wherein: still include air vent and differential lockhole, air vent and differential lockhole all are located axle housing body (6), and set up respectively in axle housing mounting flange's both sides along axle housing body (6) axis direction, and the air vent is connected with the breather valve through the pipeline, and the breather valve is fixed on the frame.
5. An air spring suspension front axle housing assembly according to claim 1, wherein:
the left upper thrust rod mounting seat (4) and the right upper thrust rod mounting seat (5) are welded on the upper surface of the axle housing body (6);
the left air spring seat (11) and the right air spring seat (10) are welded on the lower surface of the axle housing body (6);
the differential air lock chamber mounting seat (12), the right suspension damper mounting seat (14) and the right suspension damper limiting belt mounting seat (13) are welded on the upper surface of the right air spring seat (10);
the right lower thrust rod mounting seat (15) is welded on the lower surface of the right air spring seat (10);
the tie rod damper mounting seat (16), the right air spring limiting belt mounting seat (17) and the right balance valve pull rod mounting seat (18) are welded on the front end face of the right air spring seat (10);
the left suspension damper mounting seat (22) and the left suspension damper limiting belt mounting seat (23) are welded on the upper surface of the left air spring seat (11);
the left lower thrust rod mounting seat (19) is welded on the lower surface of the left air spring seat (11);
the left air spring limiting belt mounting seat (21) and the left balance valve pull rod mounting seat (20) are welded on the front end face of the left air spring seat (11).
6. An air spring suspension front axle housing assembly as set forth in claim 1 wherein: also comprises a step of adding a new type of additive,
one end of the left suspension damper (101) is connected with the left suspension damper mounting seat (22), and the other end of the left suspension damper (101) is connected with the frame;
the suspension device comprises a right suspension damper (105), wherein one end of the right suspension damper (105) is connected with a right suspension damper mounting seat (14), and the other end of the right suspension damper (105) is connected with a frame;
the suspension device comprises a left suspension damper limiting belt (102), wherein two ends of the left suspension damper limiting belt (102) are respectively connected with a frame and a left suspension damper limiting belt mounting seat (23);
and the two ends of the right suspension damper limiting belt (106) are respectively connected with the frame and the right suspension damper limiting belt mounting seat (13).
7. An air spring suspension front axle housing assembly as set forth in claim 1 wherein: also comprises a step of adding a new type of additive,
the two ends of the right lower thrust rod (109) are respectively connected with the right lower thrust rod mounting seat (15) and the frame;
the two ends of the right upper thrust rod (111) are respectively connected with the right upper thrust rod mounting seat (5) and the frame;
the two ends of the lower left thrust rod (112) are respectively connected with the lower left thrust rod mounting seat (19) and the frame;
and two ends of the left upper thrust rod (113) are respectively connected with the left upper thrust rod mounting seat (4) and the frame.
8. An air spring suspension front axle housing assembly as set forth in claim 1 wherein: also comprises the following steps of (1) preparing,
the small cavity end of the tie rod damper (110) is connected with the tie rod damper mounting seat (16), and the large cavity end of the tie rod damper (110) is connected with the tie rod;
one end of the balance valve pull rod is connected with the left balance valve pull rod mounting seat (20) or the right balance valve pull rod mounting seat (18), and the other end of the balance valve pull rod is connected with a balance valve on the frame;
and one end of the transverse thrust rod (104) is connected with the transverse thrust rod mounting hole (24), and the other end of the transverse thrust rod (104) is connected with the frame.
9. A kind of engineering truck, its characterized in that: comprising the air spring suspended front axle housing assembly of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220027883.5U CN216733767U (en) | 2022-01-06 | 2022-01-06 | Air spring suspension front axle housing assembly and engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220027883.5U CN216733767U (en) | 2022-01-06 | 2022-01-06 | Air spring suspension front axle housing assembly and engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216733767U true CN216733767U (en) | 2022-06-14 |
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ID=81912062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220027883.5U Active CN216733767U (en) | 2022-01-06 | 2022-01-06 | Air spring suspension front axle housing assembly and engineering truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216733767U (en) |
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2022
- 2022-01-06 CN CN202220027883.5U patent/CN216733767U/en active Active
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