Chassis axle for heavy transport vehicle

Abstract

The utility model relates to the technical field of axles, and discloses a chassis axle for a heavy transport vehicle, which comprises a front bracket, a rear bracket and a rear bracket, the middle bracket is fixedly welded on the vehicle girder; the balance swing arm is connected with the middle support through a middle support pin shaft, and the middle support pin shaft and the middle support are fixedly arranged through a clamping groove; the wear-resistant sleeve and the balance swing arm are in tight fit and pressed-in arrangement, and the wear-resistant sleeve and the middle support pin shaft are in clearance fit, so that the middle support can swing left and right conveniently; a first shaft head and a second shaft head at the two ends of the balance shaft assembly are inserted into a cross-shaped cube respectively, and the cross-shaped cube is fixedly installed on the front support and the balance swing arm through a front support pin shaft. According to the axis bridge adopting the high-performance wear-resistant sleeve, when a vehicle runs, mutual swing contact abrasion is borne by the wear-resistant sleeve and the wear-resistant pad, contact abrasion between steel pieces is avoided, convenience is provided for after-sales maintenance, and the accessory replacement cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of axles, in particular to a chassis axle for a heavy transport vehicle. Background Art

[0002] Axle; also known as: half-axle; Definition: a cylindrical part that bears the weight of the vehicle body. A half-axle is a shaft that transmits power between the main reducer (differential) and the drive wheels, and is mostly solid. Its inner end is connected to the half-axle gear of the differential, and the outer end is connected to the drive wheel hub.

[0003] The rotating parts of the axles used in existing heavy-duty transport vehicles will wear out. When the wear reaches a certain level, the parts need to be replaced. However, the price of replacing steel parts is very high, and the labor cost of replacement is also high.

[0004] Therefore, we proposed chassis axles for heavy transport vehicles to solve the problem. Utility Model Content

[0005] The purpose of the utility model is to provide a chassis axle for a heavy transport vehicle, which solves the problems in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a chassis axle for a heavy-duty transport vehicle, comprising:

[0007] The front bracket is fixed and welded on the vehicle frame;

[0008] The middle bracket is fixed and welded on the vehicle beam;

[0009] The balancing swing arm is connected to the middle bracket through the middle bracket pin, and the middle bracket pin and the middle bracket are fixed through a slot;

[0010] The wear-resistant sleeve is tightly fitted and pressed into the balance swing arm, and the wear-resistant sleeve and the middle bracket pin are clearance-fitted, so that the middle bracket can swing left and right.

[0011] The first shaft head and the second shaft head at both ends of the balance shaft assembly are respectively inserted into the cross cube, and the cross cube is fixedly installed on the front bracket and the balance swing arm through the front bracket pin shaft. The cross cube has a cross connecting hole through which a cross is formed, and the front bracket pin shafts are inserted and connected on both sides of the cross cube, and the front bracket pin shaft is fixed to the front bracket through bolts;

[0012] Wear-resistant short sleeves are tightly pressed into the holes on both sides of the cross cube;

[0013] The wear-resistant long sleeve is tightly fitted and pressed into the inner hole of the cross cube, and the first shaft head and the second shaft head are respectively inserted into the inner hole of the wear-resistant long sleeve with clearance;

[0014] The wear-resistant washer is sleeved on the ends of the first shaft head and the second shaft head.

[0015] Preferably, the balancing swing arm swings back and forth with the middle bracket pin as the center.

[0016] Preferably, the first shaft head and the second shaft head at both ends of the balancing shaft assembly are rotatable in the cross cube to achieve left and right swing.

[0017] Preferably, the cross cube can rotate around the pin of the front bracket.

[0018] Preferably, the wear-resistant sleeve is a zinc-aluminum alloy sleeve.

[0019] The utility model provides a chassis axle for a heavy-duty transport vehicle. The chassis axle for a heavy-duty transport vehicle has the following beneficial effects:

[0020] (1) The utility model adopts an axis bridge with a high-performance wear-resistant sleeve. When the vehicle is running, the swing contact wear between the vehicles is borne by the wear-resistant sleeve and the wear-resistant pad, thereby avoiding contact wear between steel parts, providing convenience for after-sales maintenance, and saving the cost of replacing parts.

[0021] (2) The utility model adopts a zinc-aluminum alloy sleeve, which has a good elastic effect and plays a good shock-absorbing role, and the noise is small during the vehicle running. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the chassis axle for the heavy-duty transport vehicle of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the middle bracket in the chassis axle of the heavy-duty transport vehicle of the utility model;

[0024] Figure 3 The utility model is a chassis axle for heavy-duty transport vehicles Figure 1 Schematic diagram of the local decomposition structure;

[0025] Figure 4 It is a schematic cross-sectional structure diagram of a cross-cube in a chassis axle for a heavy-duty transport vehicle of the utility model;

[0026] Figure 5 This is a schematic cross-sectional view of the wear-resistant sleeve in the chassis axle of a heavy-duty transport vehicle of the utility model;

[0027] Figure 6 The utility model is a schematic cross-sectional structure diagram of a wear-resistant short sleeve in a chassis axle for a heavy-duty transport vehicle.

[0028] In the figure: 1 front bracket pin, 2 front bracket, 3 cross cube, 4 balance shaft assembly, 401 first shaft head, 402 second shaft head, 5 middle bracket, 6 balance swing arm, 7 middle bracket pin, 8 wear-resistant sleeve, 9 wear-resistant short sleeve, 10 wear-resistant long sleeve, 11 wear-resistant washer. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0030] The preferred embodiment of the chassis axle for heavy transport vehicles provided by the utility model is as follows: Figures 1 to 6 As shown:

[0031] Chassis axles for heavy transport vehicles, including:

[0032] The front bracket 2 is fixedly welded on the vehicle beam;

[0033] The middle bracket 5 is fixedly welded on the vehicle beam;

[0034] The balancing swing arm 6 is connected to the middle bracket 5 through the middle bracket pin shaft 7. The middle bracket pin shaft 7 and the middle bracket 5 are fixed through a slot. The balancing swing arm 6 swings back and forth with the middle bracket pin shaft 7 as the center.

[0035] The wear-resistant sleeve 8 is tightly fitted and pressed into the balancing swing arm 6. The wear-resistant sleeve 8 and the middle bracket pin 7 are clearance-fitted, which is convenient for the middle bracket 5 to swing left and right. The wear-resistant sleeve 8 is a zinc-aluminum alloy sleeve. In this way, the balancing swing arm 6 and the wear-resistant sleeve 8 are fixed as one, and swing back and forth around the middle bracket pin 7. Because the hardness of the wear-resistant sleeve is lower than that of the middle bracket pin, the wear-resistant sleeve 8 will wear out after a long time of use, while the middle bracket pin 7 and the balancing swing arm 6 will not wear out. We only need to replace the wear-resistant sleeve for maintenance, so as to achieve the purpose of reducing maintenance costs;

[0036] The first shaft head 401 and the second shaft head 402 of the balancing shaft assembly 4 are respectively inserted into the cross cube 3, and the cross cube 3 is fixedly installed on the front bracket 2 and the balancing swing arm 6 through the front bracket pin shaft 1. The first shaft head 401 and the second shaft head 402 at both ends of the balancing shaft assembly 4 can rotate in the cross cube 3 to achieve left and right swinging. The cross cube 3 has a cross connecting hole that passes through a cross, and the front bracket pin shaft 1 is inserted and connected on both sides of the cross cube 3. The front bracket pin shaft 1 is fixed to the front bracket 2 by bolts. The cross cube 3 can be rotated with the front bracket pin shaft 1 as the center. In this way, when the vehicle is driving on an uneven road condition, the balancing shaft assembly 4 is swung left and right, and the balancing swing arm 6 is swung forward and backward. Through the rigid connection, the balancing shaft assembly 4 is driven to swing forward and backward, which can adapt to complex road conditions;

[0037] The wear-resistant short sleeve 9 is tightly pressed into the holes on both sides of the cross cube 3. When the road surface is uneven, the cross cube 3 will rotate around the front bracket pin 1 through mechanical linkage. With the wear-resistant short sleeve 9, the front bracket pin 1 is prevented from directly contacting the cross cube 3, and no wear will be generated. The wear-resistant short sleeve 9 is worn, and only the wear-resistant sleeve 9 needs to be replaced during maintenance.

[0038] The wear-resistant long sleeve 10 is tightly fitted and pressed into the inner hole of the cross cube 3. The first shaft head 401 and the second shaft head 402 are respectively inserted into the inner hole of the wear-resistant long sleeve 10 with clearance. When the balancing shaft assembly 4 swings left and right, the first shaft head 401 and the second shaft head 402 directly contact the wear-resistant long sleeve 10. Because the hardness of the wear-resistant long sleeve 10 is lower than that of the first shaft head 401 and the second shaft head 402, the first shaft head 401 and the second shaft head 402 will not wear, but the wear-resistant long sleeve 10 will wear. During maintenance, only the wear-resistant long sleeve 10 needs to be replaced, and the balancing shaft assembly does not need to be replaced, which saves maintenance time and accessories cost;

[0039] The wear-resistant washer 11 is mounted on the ends of the first shaft head 401 and the second shaft head 402 to prevent the end faces of the cross cube 3 from contacting and wearing with the end faces of the balancing shaft assembly 4 . Maintenance only requires replacement of the wear-resistant washer 11 .

[0040] The above description is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected for use alone or in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.

Claims

1. Chassis axle for heavy transport vehicles, characterized in that: include: A front bracket (2) is fixedly welded to the vehicle beam; A middle bracket (5) is fixedly welded to the vehicle beam; The balancing swing arm (6) is connected to the middle bracket (5) via a middle bracket pin shaft (7), and the middle bracket pin shaft (7) and the middle bracket (5) are fixed via a slot; The wear-resistant sleeve (8) is tightly fitted and pressed into the balancing swing arm (6), and the wear-resistant sleeve (8) and the middle bracket pin (7) are clearance-fitted, so that the middle bracket (5) can swing left and right. A balancing shaft assembly (4), wherein a first shaft head (401) and a second shaft head (402) at both ends are respectively inserted into a cross cube (3), wherein the cross cube (3) is fixedly mounted on a front bracket (2) and a balancing swing arm (6) via a front bracket pin shaft (1), wherein the cross cube (3) has a cross connecting hole arranged in a cross pattern, and the front bracket pin shafts (1) are inserted and connected on both sides of the cross cube (3), and the front bracket pin shaft (1) is fixed to the front bracket (2) via bolts; A wear-resistant short sleeve (9) is tightly fitted and pressed into the holes on both sides of the cross cube (3); The wear-resistant long sleeve (10) is tightly fitted and pressed into the inner hole of the cross cube (3), and the first shaft head (401) and the second shaft head (402) are respectively inserted into the inner hole of the wear-resistant long sleeve (10) with clearance; The wear-resistant washer (11) is sleeved on the ends of the first shaft head (401) and the second shaft head (402).

2. The chassis axle for a heavy transport vehicle according to claim 1, characterized in that: The balancing swing arm (6) swings back and forth with the middle bracket pin shaft (7) as the center.

3. The chassis axle for a heavy transport vehicle according to claim 1, characterized in that: The first shaft head (401) and the second shaft head (402) at both ends of the balancing shaft assembly (4) are rotatable in the cross cube (3) to achieve left-right swing.

4. The chassis axle for a heavy transport vehicle according to claim 1, characterized in that: The cross cube (3) can be rotated around the front bracket pin (1).

5. The chassis axle for a heavy transport vehicle according to claim 1, characterized in that: The wear-resistant sleeve (8) is a zinc-aluminum alloy sleeve.

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