Front support of engineering vehicle

Abstract

The utility model belongs to the technical field of engineering vehicle supports, and particularly relates to a front support of an engineering vehicle, which comprises a support body, a lateral connecting block and a linkage column, the lateral connecting block is fixedly connected to the upper end of the support body, and the linkage column is arranged on the side of the lateral connecting block. Through the arrangement of the swing arm connecting rod mechanisms, the inclined buffering mechanisms, the ball head connecting bolts and the integrated connecting pieces, the four sets of swing arm connecting rod mechanisms distributed up and down are arranged at the left end and the right end of the support body, and the inclined buffering mechanisms are arranged at the outer ends of the swing arm connecting rod mechanisms on the lower side in a matched mode, so that when a hub is vibrated, the hub can be prevented from falling off. Kinetic energy is transmitted in time through the single-side double-set swing arm connecting rod mechanism, after the lower side swing arm connecting rod transmits vibration to the inclined buffering mechanism, the inclined buffering mechanism can relieve vibration transmitted upwards in time, and therefore the equipment can effectively relieve the vibration feeling borne by a driver in the operation process of the engineering vehicle, and the safety of the engineering vehicle is improved. And the stability of the whole vehicle during running is also enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicle brackets, in particular to a front bracket of an engineering vehicle. Background Art

[0002] Engineering vehicles are the backbone of a construction project. Their appearance has doubled the progress of the construction project and greatly reduced manpower. Because engineering vehicles usually have a large load capacity and a wide range of operating environments, they have high requirements for vehicle brackets.

[0003] The prior art has the following deficiencies: the prior art "A front suspension device for an engineering vehicle and an engineering vehicle" with publication number CN216401102U "includes: a front suspension axle, the front suspension axle includes a first axle, the first axle is located near the front of the engineering vehicle, and the first axle is distributed on one side of the engineering vehicle, and the first axle includes a first linkage arm";

[0004] The above structure reduces the area of ​​the frame occupied by the first leaf spring rear bracket by configuring the first leaf spring rear bracket to be a first main body and a first connecting portion that are fixedly connected, and the length of the first leaf spring rear bracket is less than or equal to a first preset length threshold. However, the structure does not make targeted improvements in terms of vehicle shock absorption and buffering. Engineering vehicles often need to operate in complex terrains, so the shock absorption mechanism of the frame is particularly critical. Conventional shock absorption uses a cross-arm structure, which can effectively prevent the force on one side from being transmitted to the other side, but it is difficult to achieve effective shock absorption in situations with large height differences. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a front bracket for an engineering vehicle, which solves the problem of poor shock absorption effect existing today.

[0006] To achieve the above object, the utility model provides the following technical solution: a front bracket of an engineering vehicle, comprising a bracket body, a lateral connection block, and a linkage column, wherein the lateral connection block is fixedly connected to the upper end of the bracket body, the linkage column is arranged on the side of the lateral connection block, and the left and right outermost sides of the bracket body are provided with wheel hubs;

[0007] A swing arm connecting rod mechanism is also provided at the side end of the bracket body, an oblique buffer mechanism is also provided at the outer side of the linkage column, and a ball head connecting bolt is connected to the bottom end of the oblique buffer mechanism;

[0008] The swing arm connecting rod mechanism includes an extension shaft, a positioning shaft, and an integrated connecting piece. The extension shaft as a whole is composed of two groups of columnar structures with different diameters and a front end clamp-shaped body. The positioning shaft passes through the clamp-shaped body at the end of the extension shaft and the protruding part of the swing arm connecting rod mechanism on the inner side, and establishes a movable connection relationship between the extension shaft and the swing arm connecting rod mechanism. The integrated connecting piece is movably connected to the other end of the extension shaft.

[0009] As a preferred technical solution of the utility model, the side end of the lateral connecting block is also provided with a laterally extending columnar structure, and the linkage column is penetrated by the columnar structure and a movable connection relationship is established.

[0010] As a preferred technical solution of the utility model, the oblique buffer mechanism includes a spring, a limiting rod, and a pressure plate. The spring is sleeved on the lower end of the oblique buffer mechanism, the limiting rod is inserted into the oblique buffer mechanism, and the pressure plate is fixedly connected to the end of the limiting rod.

[0011] As a preferred technical solution of the utility model, the ball head connecting bolt is composed of two groups of spherical structures connected by a rod body, wherein the spherical structure at the upper end is movably connected to the middle part of the pressure plate, and the spherical structure at the lower end is fixedly connected to the side end of the extension shaft through a columnar body.

[0012] As a preferred technical solution of the utility model, a blocking piston mechanism is arranged inside the oblique buffer mechanism, and a limiting rod inserted into the oblique buffer mechanism establishes a sliding connection relationship therewith.

[0013] As a preferred technical solution of the utility model, the swing arm connecting rod mechanism is provided with two groups at the left and right ends of the bracket body, respectively, and is distributed in an upper and lower position.

[0014] As a preferred technical solution of the utility model, the maximum angle that the swing arm connecting rod mechanism can rotate through the positioning shaft is 35°.

[0015] Compared with the prior art, the utility model provides a front bracket for an engineering vehicle, which has the following

[0016] Beneficial effects:

[0017] The front bracket of the engineering vehicle is provided with a swing arm connecting rod mechanism, an oblique buffer mechanism, a ball head connecting bolt and an integrated connecting piece. When the device is installed on the front end of the engineering vehicle, when the engineering vehicle moves and encounters a road surface with a height difference, the engineering vehicle as a whole will tilt forward, and most of the weight of the vehicle body needs to be borne by the front bracket. At this time, the bracket body and the wheel hubs on the left and right sides are subjected to pressure from the upper and lower ends. After being subjected to pressure, the wheel hubs on both sides transmit the pressure to the integrated connecting piece, thereby transmitting the force to the two groups of swing arm connecting rod mechanisms on the pressure-bearing side. The upper and lower groups of swing arm connecting rod mechanisms both swing upward with the side end of the bracket body as the axis, and when the lower swing arm connecting rod mechanism swings upward, the pressure plate connected to the ball head connecting bolt pushes the limit rod to move obliquely upward, and pushes the spring to contract between the oblique buffer mechanism and the pressure plate, and the upper end of the limit rod is inserted into the oblique buffer mechanism. After the pressure is absorbed by the spring and the oblique buffer mechanism, the spring rebounds to release kinetic energy.

[0018] Through the above process, the device can have the following beneficial effects:

[0019] By arranging four groups of swing arm connecting rod mechanisms distributed up and down at the left and right ends of the bracket body, and arranging an oblique buffer mechanism at the outer end of the lower swing arm connecting rod mechanism, the device can transmit kinetic energy through the single-sided double swing arm connecting rod mechanism in time when the wheel hub is vibrated. After the lower swing arm connecting rod transmits the vibration to the oblique buffer mechanism, the oblique buffer mechanism can timely reduce the vibration transmitted upward, so that the device can effectively reduce the vibration felt by the driver during the operation of the engineering vehicle, and also enhance the stability of the vehicle as a whole during travel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the rear end structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the upper structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the connection position of the oblique buffer mechanism of the utility model.

[0024] In the figure: 1. bracket body; 2. lateral connecting block; 3. linkage column; 4. swing arm connecting rod mechanism; 401. extension shaft; 402. positioning shaft; 403. integrated connecting piece; 5. wheel hub; 6. oblique buffer mechanism; 601. spring; 602. limit rod; 603. pressure plate; 7. ball head connecting bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 In this embodiment: a front bracket of an engineering vehicle comprises a bracket body 1, a lateral connection block 2, and a linkage column 3, wherein the lateral connection block 2 is fixedly connected to the upper end of the bracket body 1, the lateral connection block 2 is connected to the outer oblique buffer mechanism 6, the linkage column 3 is arranged on the side of the lateral connection block 2, and the linkage column 3 connects and fixes the oblique buffer mechanisms 6 on both sides to the same horizontal plane, and the left and right outermost sides of the bracket body 1 are provided with wheel hubs 5, and the wheel hubs 5 support the movement of the bracket body 1;

[0027] The side end of the bracket body 1 is also provided with a swing arm connecting rod mechanism 4, which swings to transmit force, and the outer side of the linkage column 3 is also provided with an oblique buffer mechanism 6, which reduces the transmission of vibration, and the bottom end of the oblique buffer mechanism 6 is connected with a ball head connecting bolt 7, which connects the lower swing arm connecting rod mechanism 4 and the oblique buffer mechanism 6;

[0028] The swing arm linkage mechanism 4 includes an extension shaft 401, a positioning shaft 402, and an integrated connector 403. The extension shaft 401 as a whole is composed of two groups of columnar structures with different diameters and a front end clamp-shaped body. The positioning shaft 402 passes through the clamp-shaped body at the end of the extension shaft 401 and the protruding part of the swing arm linkage mechanism 4 on the inner side, and establishes a movable connection relationship between the extension shaft 401 and the swing arm linkage mechanism 4. The integrated connector 403 is movably connected to the other end of the extension shaft 401.

[0029] In this embodiment, the side end of the lateral connecting block 2 is also provided with a laterally extending columnar structure, and the linkage column 3 is penetrated by the columnar structure and establishes a movable connection relationship; the oblique buffer mechanism 6 includes a spring 601, a limit rod 602, and a pressure plate 603, the spring 601 is sleeved on the lower end of the oblique buffer mechanism 6, the limit rod 602 is inserted into the oblique buffer mechanism 6, and the pressure plate 603 is fixedly connected to the end of the limit rod 602; the ball head connecting bolt 7 is composed of two groups of spherical structures connected by a rod body, wherein the spherical structure at the upper end is movably connected to the middle part of the pressure plate 603, and the spherical structure at the lower end is fixedly connected to the side end of the extension shaft 401 through a columnar body;

[0030] Specifically, by inserting the limiting rod 602 into the oblique buffer mechanism 6, the oblique movement of the pressure plate 603 can be kept in a fixed direction at all times;

[0031] In this embodiment, a blocking piston mechanism is provided inside the oblique buffer mechanism 6, and a limiting rod 602 inserted into the oblique buffer mechanism 6 establishes a sliding connection relationship with the limiting rod 602; two groups of swing arm connecting rod mechanisms 4 are provided at the left and right ends of the bracket body 1, and are distributed according to the upper and lower positions; the maximum angle that the swing arm connecting rod mechanism 4 can rotate through the positioning shaft 402 is 35°;

[0032] Specifically, by arranging two sets of swing arm connecting rod mechanisms 4 distributed in upper and lower positions on both sides of the bracket body 1, the vibration of the wheel hub 5 can be effectively transmitted.

[0033] The working principle and use process of the utility model are as follows: when the equipment is installed at the front end of an engineering vehicle, when the engineering vehicle moves and encounters a road surface with a height difference, the engineering vehicle as a whole will tilt forward, and most of the weight of the vehicle body needs to be borne by the front bracket. At this time, the bracket body 1 and the wheel hubs 5 on the left and right sides are subjected to pressure from the upper and lower ends. After being subjected to pressure, the wheel hubs 5 on both sides transmit the pressure to the integrated connector 403, thereby transmitting the force to the two groups of swing arm connecting rod mechanisms 4 on the pressure side. The upper and lower groups of swing arm connecting rod mechanisms 4 both swing upward with the side end of the bracket body 1 as the axis, and when the lower swing arm connecting rod mechanism 4 swings upward, the pressure plate 603 connected to the ball head connecting bolt 7 pushes the limit rod 602 to move diagonally upward, and pushes the spring 601 to contract between the oblique buffer mechanism 6 and the pressure plate 603, and the upper end of the limit rod 602 is inserted into the oblique buffer mechanism 6. After the pressure is absorbed by the spring 601 and the oblique buffer mechanism 6, the spring 601 rebounds to release kinetic energy.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A front bracket of an engineering vehicle, comprising a bracket body (1), a lateral connection block (2), and a linkage column (3), wherein the lateral connection block (2) is fixedly connected to the upper end of the bracket body (1), the linkage column (3) is arranged on the side of the lateral connection block (2), and the left and right outermost sides of the bracket body (1) are provided with wheel hubs (5), characterized in that: A swing arm connecting rod mechanism (4) is also provided at the side end of the bracket body (1), an oblique buffer mechanism (6) is also provided at the outer side of the linkage column (3), and a ball head connecting bolt (7) is connected to the bottom end of the oblique buffer mechanism (6); The swing arm connecting rod mechanism (4) comprises an extension shaft (401), a positioning shaft (402), and an integrated connecting piece (403); the extension shaft (401) as a whole is composed of two groups of columnar structures with different diameters and a front clamp-shaped body; the positioning shaft (402) penetrates the clamp-shaped body at the end of the extension shaft (401) and the protruding part of the swing arm connecting rod mechanism (4) on the inner side, and establishes a movable connection relationship between the extension shaft (401) and the swing arm connecting rod mechanism (4); the integrated connecting piece (403) is movably connected to the other end of the extension shaft (401).

2. The front bracket of an engineering vehicle according to claim 1, characterized in that: The side end of the lateral connection block (2) is also provided with a laterally extending columnar structure, and the linkage column (3) is penetrated by the columnar structure and a movable connection relationship is established.

3. The front bracket of an engineering vehicle according to claim 1, characterized in that: The oblique buffer mechanism (6) comprises a spring (601), a limiting rod (602), and a pressure plate (603); the spring (601) is sleeved on the lower end of the oblique buffer mechanism (6); the limiting rod (602) is inserted into the oblique buffer mechanism (6); and the pressure plate (603) is fixedly connected to the end of the limiting rod (602).

4. The front bracket of an engineering vehicle according to claim 1, characterized in that: The ball head connecting bolt (7) is composed of two groups of spherical structures connected by a rod body, wherein the spherical structure at the upper end is movably connected to the middle part of the pressure plate (603), and the spherical structure at the lower end is fixedly connected to the side end of the extension shaft (401) through a columnar body.

5. The front bracket of an engineering vehicle according to claim 1, characterized in that: The oblique buffer mechanism (6) is provided with a piston mechanism inside, and a limiting rod (602) inserted into the oblique buffer mechanism (6) establishes a sliding connection relationship therewith.

6. The front bracket of an engineering vehicle according to claim 1, characterized in that: The swing arm connecting rod mechanism (4) is provided with two groups at the left and right ends of the bracket body (1), respectively, and is distributed in an upper and lower position.

7. The front bracket of an engineering vehicle according to claim 1, characterized in that: The maximum angle at which the swing arm connecting rod mechanism (4) can rotate via the positioning shaft (402) is 35°.

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