Lifting cylinder retainer of mining dump truck

Abstract

The utility model discloses a mining dump truck lifting cylinder retainer which comprises a bent plate assembly, a bracket assembly, a pressing plate assembly and a double-thread screw, the bent plate assembly comprises a bent plate body and a shock pad, a back plate is provided with a bent plate fixing through hole, and a connecting plate is provided with a bent plate connecting through hole; a bracket through hole is formed in the rear portion of the bracket assembly, and a connecting bolt penetrates through the bracket through hole and the bent plate connecting through hole to connect the bracket assembly to the front portion of the bent plate assembly. The pressing plate assembly comprises a first pressing plate and a second pressing plate, the rear portion of the first pressing plate is connected to the front portion of the bracket assembly, first pressing plate through holes are formed in the two sides of the first pressing plate respectively, second pressing plate through holes are formed in the two sides of the second pressing plate respectively, a first arc-shaped concave face is arranged in the middle of the first pressing plate, and a second arc-shaped concave face is arranged in the middle of the second pressing plate. The two ends of the double-thread screw are arranged in the first pressing plate through hole and the second pressing plate through hole in a penetrating mode respectively. The lifting cylinder fixing device is reliable in structure, convenient to install and transport and suitable for fixing lifting cylinders with different diameters.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining vehicles, and in particular relates to a lifting cylinder retaining frame of a mining dump truck. Background Art

[0002] Mining dump trucks are off-road dump trucks. As the "giant" for transporting materials in mines, they have the characteristics of heavy load, strong and durable structure. Therefore, the various parts of mining dump trucks are relatively large. During the assembly process of mining dump trucks, several components are often assembled first, and then the various assemblies are assembled. The carriage, as a large component, is often installed last, while the cylinder body such as the lifting cylinder belonging to the hydraulic system needs to be installed in place in advance. Before the carriage is installed in place, only one end of the lifting cylinder is connected to the frame through a pin shaft, and the other end needs to use a lifting cylinder holder to maintain the lifting cylinder in a vertical state.

[0003] When the mining dump truck is connected to the lifting cylinder, the lifting cylinder holder is an important device to maintain the vertical state of the lifting cylinder. The lifting cylinder holder currently used uses a threaded bracket clamp to fix the lifting cylinder, and a wooden pad is used between the lifting cylinder and the frame. Due to the insufficient strength of the wooden pad, it must be replaced after a period of use. In addition, the wooden pad is only pressed between the lifting cylinder and the frame by lateral pressure, and has poor stability and reliability. When the mining car is shipped, the carriage needs to be removed, and the lifting cylinder is transported together with the vehicle body. If the road is bumpy, it is inevitable that the wooden pad will fall off and damage the cylinder parts. Utility Model Content

[0004] The utility model aims to provide a lifting cylinder retaining frame for a mining dump truck, which has a reliable structure, is convenient to install and transport, and can be suitable for fixing lifting cylinders with different diameters.

[0005] The technical solution is as follows:

[0006] The lifting cylinder retainer of a mining dump truck comprises: a bent plate assembly, a bracket assembly, a pressure plate assembly, and a double-headed screw. The bent plate assembly comprises: a bent plate body, a shock-absorbing pad, a longitudinal back plate is provided with a bent plate fixing through hole, and a transverse connecting plate is provided with a bent plate connecting through hole; a bracket through hole is provided at the rear of the bracket assembly, and a connecting bolt passes through the bracket through hole and the bent plate connecting through hole to connect the bracket assembly to the front of the bent plate assembly; the pressure plate assembly comprises: a first pressure plate and a second pressure plate, the rear of the first pressure plate is connected to the front of the bracket assembly, first pressure plate through holes are respectively provided on both sides of the first pressure plate, second pressure plate through holes are respectively provided on both sides of the second pressure plate, a first arc-shaped concave surface is provided in the middle of the first pressure plate, and a second arc-shaped concave surface is provided in the middle of the second pressure plate; external threads are respectively provided on the outer walls of both sides of the double-headed screw, and screw nuts are installed at the external threads, and both ends of the double-headed screw are respectively penetrated through the first pressure plate through hole and the second pressure plate through hole.

[0007] Furthermore, the outer shape of the bent plate body is L-shaped, and the back plate and the connecting plate are perpendicular to each other.

[0008] Furthermore, a shock-absorbing pad is arranged at the rear of the bent plate fixing through hole, the shock-absorbing pad is provided with a shock-absorbing pad through hole, and the fixing bolts are passed through the bent plate fixing through hole and the shock-absorbing pad through hole.

[0009] Furthermore, the fixing bolts and connecting bolts are respectively provided with flat washers, spring washers, bolt nuts, and the stud screw is provided with flat washers.

[0010] Furthermore, the connecting plate is provided with two bent plate connecting through holes, the rear portion of the bracket assembly is provided with two pairs of bracket through holes, and the rear portion of the bracket assembly is connected to two bent plate assemblies.

[0011] Furthermore, the first pressing plate through hole and the second pressing plate through hole are positioned opposite to each other, and the first arc-shaped concave surface and the second arc-shaped concave surface are positioned opposite to each other.

[0012] Furthermore, the first pressing plate and the second pressing plate are respectively provided with reinforcing ribs on the outer sides.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model has the advantages of reliable structure, convenient installation and transportation, and can be suitable for fixing lifting cylinders with different diameters.

[0015] 1. The lifting cylinder retainer of the mining dump truck is easy to install and has a reliable structure. It can also ensure stability and safety and protect the cylinder body during long-distance transportation of the vehicle.

[0016] 2. The various components of the lifting cylinder retaining frame of the mining dump truck are reasonably connected, which is convenient for maintenance, improving reliability and facilitating component replacement.

[0017] 3. The fixed distance of the lifting cylinder retainer of the mining dump truck to the cylinder body can be adjusted to a certain extent, and it can be suitable for cylinders of different diameters while the frame interface remains unchanged.

[0018] When assembling the mining vehicle, the bottom of the lifting cylinder is hinged on the frame, and the lifting cylinder holder of the mining dump truck is installed on the frame. The cylinder body is fixed by the lifting cylinder holder of the mining dump truck, and the position of the cylinder body is adjusted and clamped by the double-headed screw to adapt to cylinder bodies of different diameters to ensure accurate positioning of the cylinder body.

[0019] 4. The lifting cylinder retaining frame of mining dump trucks is made of metal as a whole, and shock-absorbing pads are used to eliminate the impact of vehicle bumps on the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the side structure of the lifting cylinder retainer of the mining dump truck in the utility model;

[0021] Figure 2 It is a schematic diagram of the rear structure of the lifting cylinder retainer of the mining dump truck in the utility model;

[0022] Figure 3 This is a structural exploded view of the lifting cylinder retainer of a mining dump truck in the utility model;

[0023] Figure 4 The utility model is a diagram showing the use state of the lifting cylinder retaining frame of the mining dump truck. DETAILED DESCRIPTION

[0024] The following description sufficiently illustrates specific embodiments of the present invention to enable those skilled in the art to practice and reproduce the same.

[0025] In the following description, a direction close to the frame is defined as a rear portion, and a direction away from the frame is defined as a front portion.

[0026] like Figure 1 As shown in FIG. 1 , it is a schematic diagram of the side structure of the lifting cylinder holder of the mining dump truck in the utility model; Figure 2 As shown in FIG. 1 , it is a schematic diagram of the rear structure of the lifting cylinder holder of the mining dump truck in the utility model; Figure 3 The figure shows a structural exploded view of the lifting cylinder retaining frame of a mining dump truck in the utility model.

[0027] The lifting cylinder retainer of a mining dump truck comprises: a bent plate assembly 1, a bracket assembly 2, a pressure plate assembly 3, and a double-headed screw rod 4. The bracket assembly 2 is connected to the front part of the bent plate assembly 1, and the double-headed screw rod 4 is connected between the bracket assembly 2 and the pressure plate assembly 3.

[0028] The bent plate assembly 1 includes: a bent plate body 11, a shock absorbing pad 12, and a fixing bolt 13. The bent plate body 11 is L-shaped (the back plate and the connecting plate are perpendicular to each other), the longitudinal back plate is provided with a bent plate fixing through hole, the transverse connecting plate is provided with (two) bent plate connecting through holes 14, the shock absorbing pad 12 is located at the rear of the bent plate fixing through hole, and the shock absorbing pad 12 is provided with a shock absorbing pad through hole. The fixing bolt 13 passes through the bent plate fixing through hole and the shock absorbing pad through hole and is connected to the position of the fixed cylinder 7 on the frame 6.

[0029] Two bent plate assemblies 1 are connected to the rear of the bracket assembly 2 to improve the connection firmness of the bracket assembly 2. The bent plate body 11 is formed by bending, and the longitudinal back plate and the transverse connecting plate are connected to form an L shape.

[0030] The rear of the bracket assembly 2 is provided with (two pairs of) bracket through holes 21, and the bracket through holes 21 are provided with connecting bolts 5. The connecting bolts 5 pass through the bracket through holes 21 and the bent plate connecting through holes 14 to connect the bracket assembly 2 to the front of the bent plate assembly 1.

[0031] The pressure plate assembly 3 includes: a first pressure plate 31 and a second pressure plate 32. The rear portion of the first pressure plate 31 is connected (welded) to the front portion of the bracket assembly 2. First pressure plate through holes are respectively provided on both sides of the first pressure plate 31, and second pressure plate through holes are respectively provided on both sides of the second pressure plate 32. The first pressure plate through holes and the second pressure plate through holes are positioned opposite to each other. The first pressure plate 31 is provided with a first arc-shaped concave surface 33 in the middle portion, and the second pressure plate 32 is provided with a second arc-shaped concave surface 34 in the middle portion. The first arc-shaped concave surface 33 and the second arc-shaped concave surface 34 are positioned opposite to each other.

[0032] In order to enhance the strength of the first pressing plate 31 and the second pressing plate 32 , reinforcing ribs 35 are provided on the outer sides of the first pressing plate 31 and the second pressing plate 32 .

[0033] The outer walls of both sides of the double-headed screw rod 4 are respectively provided with external threads, and screw nuts 41 are installed on the external threads. The two ends of the two double-headed screw rods 4 are respectively inserted into the through holes of the first pressing plate and the second pressing plate, connecting the first pressing plate 31 and the second pressing plate 32 together, and the distance between the first pressing plate 31 and the second pressing plate 32 is adjusted by the screw nuts 41.

[0034] The fixing bolt 13 and the connecting bolt 5 are respectively provided with a flat washer, a spring washer, and a bolt nut, and the stud screw 4 is provided with a flat washer to improve the stability of the connection.

[0035] like Figure 4 The figure shows the use state of the lifting cylinder retaining frame of the mining dump truck in the utility model.

[0036] During installation, the lower part of the cylinder body 7 is hinged on the hinge seat at the lower part of the frame 6, and the fixing bolts 13 pass through the bent plate fixing through holes and the shock-absorbing pad through holes to be connected to the frame 6, and the two bent plate bodies 11 are fixed to the frame 6. The connecting bolts 5 pass through the bracket through holes 21 and the bent plate connecting through holes 14 to connect the bracket assembly 2 to the front part of the bent plate assembly 1; the cylinder body 7 is placed between the first arc-shaped concave surface 33 and the second arc-shaped concave surface 34, and the two ends of the double-headed screw rod 4 pass through the first pressure plate through holes and the second pressure plate through holes respectively, and the first pressure plate 31 and the second pressure plate 32 are connected together and clamped by the screw nut 41, and finally the telescopic rod 71 at the top of the cylinder body 7 is hinged to the bracket of the car body; when the car body needs to be raised, the telescopic rod 71 lifts up the car body when it is raised.

[0037] The terms used in the present invention are illustrative and exemplary, rather than restrictive. Since the present invention can be implemented in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A lifting cylinder retainer for a mining dump truck, characterized in that: include: The bent plate assembly, the bracket assembly, the pressure plate assembly, and the double-headed screw, the bent plate assembly includes: a bent plate body, a shock-absorbing pad, the longitudinal back plate is provided with a bent plate fixing through hole, and the transverse connecting plate is provided with a bent plate connecting through hole; the rear part of the bracket assembly is provided with a bracket through hole, and the connecting bolt passes through the bracket through hole and the bent plate connecting through hole to connect the bracket assembly to the front part of the bent plate assembly; the pressure plate assembly includes: a first pressure plate and a second pressure plate, the rear part of the first pressure plate is connected to the front part of the bracket assembly, the first pressure plate is provided with first pressure plate through holes on both sides, and the second pressure plate is provided with second pressure plate through holes on both sides, the first pressure plate is provided with a first arc-shaped concave surface in the middle, and the second pressure plate is provided with a second arc-shaped concave surface in the middle; the outer walls on both sides of the double-headed screw are provided with external threads, respectively, and screw nuts are installed at the external threads, and the two ends of the double-headed screw are respectively passed through the first pressure plate through hole and the second pressure plate through hole.

2. The lifting cylinder holder for a mining dump truck according to claim 1, characterized in that: The bent plate body is L-shaped, and the back plate and the connecting plate are perpendicular to each other.

3. The lifting cylinder holder for a mining dump truck according to claim 1, characterized in that: A shock-absorbing pad is arranged at the rear of the bent plate fixing through hole, the shock-absorbing pad is provided with a shock-absorbing pad through hole, and the fixing bolts are passed through the bent plate fixing through hole and the shock-absorbing pad through hole.

4. The lifting cylinder holder for a mining dump truck according to claim 3, characterized in that: The fixing bolts and the connecting bolts are respectively provided with flat washers, spring washers, bolt nuts, and the stud screws are provided with flat washers.

5. The lifting cylinder holder for a mining dump truck according to claim 1, characterized in that: The connecting plate is provided with two bent plate connecting through holes, the rear part of the bracket assembly is provided with two pairs of bracket through holes, and the rear part of the bracket assembly is connected with two bent plate assemblies.

6. The lifting cylinder holder for a mining dump truck according to claim 1, characterized in that: The first pressing plate through hole and the second pressing plate through hole are opposite to each other, and the first arc-shaped concave surface and the second arc-shaped concave surface are opposite to each other.

7. The lifting cylinder holder for a mining dump truck according to claim 1, characterized in that: The first pressing plate and the second pressing plate are respectively provided with reinforcing rib plates on the outer sides.

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