Mine truck cab rear suspension assembly

Abstract

The utility model discloses a cab rear suspension assembly for a mining vehicle. The cab rear suspension assembly is characterized by comprising a cab rear suspension upper bracket, a cab rear suspension lower bracket, a guide wheel bracket, a cab shock absorber and a hydraulic lock, the rear suspension upper support is connected with the cab through bolts, the hydraulic lock is fixed to the rear suspension lower support, and when the cab does not turn over, a lock hook of the hydraulic lock is buckled to a lock shaft of the rear suspension upper support, so that the locking effect is achieved. When the cab is turned over, the lock hook of the hydraulic lock is separated from the pin shaft of the rear suspension upper bracket, so that the cab can be turned over; the cab shock absorber is connected to the rear suspension lower support, the guide wheel and the support assembly and freely moves up and down, and the comfort of a cab is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining vehicles, in particular to a rear suspension assembly of a mining vehicle cab. Background Art

[0002] The working environment and road conditions of mining vehicles are complex. Currently, the rear suspension assembly of the mining vehicle cab has the following problems: 1) There are errors in the installation of the cab, resulting in incomplete locking of the hydraulic lock and the cab, which will cause abnormal noise and vibration of the engine and lead to a poor driving experience; 2) In order to completely lock some models, mechanical locks are used. The mechanical locks need to be opened during lifting, which is inconvenient for the driver to operate; 3) The cab guide device is a column, which is not convenient to rise and fall during the lifting process, and will cause friction with the matching holes of the lower bracket, causing shaking. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the above-mentioned prior art and provide a rear suspension assembly for a mining vehicle cab.

[0004] The technical solution provided by the utility model is: a rear suspension assembly of a cab for a mining vehicle, which is special in that it consists of a rear suspension upper bracket, a rear suspension lower bracket, a guide wheel bracket, a cabin shock absorber and a hydraulic lock; the rear suspension upper bracket is connected to the cab, the rear suspension lower bracket is provided with a hydraulic lock, the lock hook of the hydraulic lock is locked and separated with the lock bolt of the rear suspension upper bracket; the upper end of the cabin shock absorber is connected to the shock-absorbing mounting hole of the rear suspension lower bracket, and the lower end of the cabin shock absorber is connected to the guide wheel bracket; the guide wheel bracket is connected to the outer web of the frame; a circular hole is provided on the upper plane of the rear suspension lower bracket, and the guide cone of the rear suspension upper bracket is adapted to the circular hole; the guide cone changes from a cylindrical shape to a conical shape from top to bottom.

[0005] Further, the rear suspension upper bracket is composed of a guide bracket and a lock bolt bracket; the guide bracket is composed of an upper mounting bent piece, a side connecting plate and a guide cone fixedly connected, the side connecting plate is fixedly connected to the side of the upper mounting bent piece, and the guide cone is fixedly connected to the bottom of the upper mounting bent piece; the lock bolt bracket is composed of an upper mounting plate, two lower bracket side plates arranged opposite to each other and a lock bolt fixedly connected between the side plates;

[0006] The side surface of the upper mounting bent piece of the guide bracket has at least two long holes along the front and rear direction of the vehicle, and the guide bracket is connected to the cab through the long holes on the side surface of the upper mounting bent piece; the bottom surface of the side connecting plate also has at least two long holes along the front and rear direction of the vehicle; the upper mounting plate has at least two long holes perpendicular to the vehicle's driving direction; the long holes on the bottom surface of the side connecting plate are connected to the long holes on the upper mounting plate of the lock bolt bracket.

[0007] Beneficial effects of the utility model:

[0008] 1. The side of the upper mounting bent part and the bottom of the side connecting plate have long holes along the direction of vehicle travel, and the upper mounting plate has long holes perpendicular to the direction of vehicle travel, so as to adjust the errors caused by the production of the cab and frame support, and ensure the smooth installation of the cab;

[0009] 2. The guide cone of the rear suspension upper bracket changes from a cylindrical shape to a conical structure from top to bottom, and is in arc-shaped contact with the lower bracket, thereby ensuring smooth connection between the upper and lower brackets of the rear suspension, ensuring smooth lowering of the cab and appropriate matching clearance, thereby improving the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a schematic diagram of the lock bolt bracket structure of the utility model;

[0012] Figure 3 This is a schematic diagram of the guide bracket structure of the utility model;

[0013] Figure 4 This is a diagram of the cooperation between the hydraulic lock and the guide bracket of the utility model;

[0014] Figure 5 It is a stereoscopic diagram of the rear suspension part of the utility model.

[0015] In the figure: 10 rear suspension upper bracket, 20 rear suspension lower bracket, 21 round hole, 30 guide wheel bracket, 31 mounting shaft, 32 mounting hole, 40 cockpit shock absorber, 50 hydraulic lock, 51 lock hook, 110 guide bracket, 111 upper mounting bent part, 112 side connecting plate, 113 guide cone, 120 lock bolt bracket, 121 upper mounting plate, 122 bracket side plate, 123 lock bolt. DETAILED DESCRIPTION

[0016] For better understanding and implementation, the present invention is described in detail with reference to the accompanying drawings.

[0017] like Figure 1 , 2 As shown in , 3, 4, and 5, a rear suspension assembly of a mining vehicle cab is composed of a rear suspension upper bracket 10, a rear suspension lower bracket 20, a guide wheel bracket 30, a cab shock absorber 40, and a hydraulic lock 50;

[0018] The rear suspension upper bracket 10 is composed of a guide bracket 110 and a lock bolt bracket 120; the guide bracket 110 is welded by an upper mounting bent piece 111, a side connecting plate 112 and a guide cone 113, the side connecting plate 112 is welded to the side of the upper mounting bent piece 111, and the guide cone 113 is welded to the bottom of the upper mounting bent piece 111; the lock bolt bracket 120 is welded by an upper mounting plate 121, two bracket side plates 122 oppositely arranged below, and a lock bolt 123 between the side plates;

[0019] The side surface of the upper mounting bent part 111 of the guide bracket 110 has at least two long holes along the front and rear direction of the vehicle, and the long holes are connected to the cab through bolts; the bottom surface of the side connecting plate 112 also has at least two long holes in this direction; the upper mounting plate 121 has at least two long holes perpendicular to the vehicle's driving direction; the side connecting plate 112 and the upper mounting plate 121 are connected through two groups of holes; the long holes can effectively adjust the deviation of the cab and the frame support during the production and installation process;

[0020] The guide cone 113 changes from a cylindrical shape to a conical shape from top to bottom;

[0021] The hydraulic lock 50 is installed on the rear suspension lower bracket 20, and can be locked and separated by the lock hook 51 of the hydraulic lock 50 and the lock bolt 123 of the rear suspension upper bracket 10;

[0022] There is a circular hole 21 on the upper plane of the rear suspension lower bracket 20, and the guide cone 113 of the rear suspension upper bracket 10 can be adapted in this hole, thereby ensuring the stability of the cab;

[0023] The rear suspension upper bracket 10 is connected to the cab; the upper end of the cabin shock absorber 40 is connected to the shock-absorbing mounting hole 22 of the rear suspension lower bracket 20, and the lower end of the cabin shock absorber 40 is connected to the mounting shaft 31 of the guide wheel bracket 30; four mounting holes 32 are set on the guide wheel bracket 30 to connect to the outer web of the frame.

[0024] The utility model discloses a rear suspension assembly for a mining vehicle cab. When the cab is lifted, the lock bolt will be disengaged from the lock hook, canceling the locking limit; when the cab is lifted, the arc surface will leave, thereby ensuring the stability of the cab; when the cab falls, the bolt will be buckled with the lock hook, thereby achieving the locking limit effect; when the cab falls, it is similar to the cab flipping trajectory, first the cone end and then the cylindrical end enter the hole, and the arc surface is matched, which is more convenient to fall into;

[0025] When the cab is not flipped, the lock hook of the hydraulic lock is buckled to the lock shaft of the rear suspension upper bracket, thereby locking it; when the cab is flipped, the lock hook of the hydraulic lock and the pin shaft of the rear suspension upper bracket fall off, allowing it to flip; the cabin shock absorber is connected to the rear suspension lower bracket and guide bracket, and can move freely up and down, improving the comfort of the cab.

[0026] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

Claims

1. A mining vehicle cab rear suspension assembly, characterized in that: The invention is composed of a rear suspension upper bracket (10), a rear suspension lower bracket (20), a guide wheel bracket (30), a cabin shock absorber (40) and a hydraulic lock (50); the rear suspension upper bracket (10) is connected to the cab, the rear suspension lower bracket (20) is provided with a hydraulic lock (50), a lock hook (51) of the hydraulic lock (50) is locked and separated with a lock bolt (123) of the rear suspension upper bracket (10); the upper end of the cabin shock absorber (40) is connected to the cab, and the hydraulic lock (50) is provided on the rear suspension lower bracket (20). The lower end of the cabin shock absorber (40) is connected to the shock absorbing mounting hole (22) of the rear suspension lower bracket (20); the guide wheel bracket (30) is connected to the outer web of the frame; the upper plane of the rear suspension lower bracket (20) is provided with a circular hole (21), and the guide cone (113) of the rear suspension upper bracket (10) is adapted to fit in the circular hole (21); the guide cone (113) changes from a cylindrical shape to a conical shape from top to bottom.

2. The rear suspension assembly of a mining vehicle cab according to claim 1, characterized in that: The rear suspension upper bracket (10) is composed of a guide bracket (110) and a locking bolt bracket (120); the guide bracket (110) is composed of an upper mounting bent piece (111), a side connecting plate (112) and a guide cone (113) fixedly connected, the side connecting plate (112) is fixedly connected to the side surface of the upper mounting bent piece (111), and the guide cone (113) is fixedly connected to the bottom of the upper mounting bent piece (111); the locking bolt bracket (120) is composed of an upper mounting plate (121), two bracket side plates (122) arranged opposite to each other at the bottom, and a locking bolt (123) fixedly connected between the side plates; The side surface of the upper mounting bent piece (111) of the guide bracket (110) has at least two long holes along the front-rear direction of the vehicle, and the guide bracket (110) is connected to the cab through the long holes on the side surface of the upper mounting bent piece (111); the bottom surface of the side connecting plate (112) also has at least two long holes along the front-rear direction of the vehicle; the upper mounting plate (121) has at least two long holes perpendicular to the vehicle's travel direction; the long holes on the bottom surface of the side connecting plate (112) are connected to the long holes on the upper mounting plate (121) of the lock bolt bracket (120).

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