Lifting oil cylinder base sliding device of unmanned mining truck

Abstract

The utility model discloses a lifting oil cylinder base sliding device of an unmanned mining truck. The lifting oil cylinder base sliding device comprises a guide rail assembly and a hydraulic push rod. The guide rail assembly is provided with a sliding block connected with the lifting oil cylinder base, and the sliding block is connected to the guide rail in a sliding mode. A push rod of the hydraulic push rod is connected to one side of the lifting oil cylinder base, and the lifting oil cylinder base is driven by the push rod to reciprocate along the guide rail. According to the sliding device, the lifting oil cylinder base of the unmanned mining truck can move front and back, so that the time for lifting the carriage of the unmanned mining truck to the maximum angle and the time for falling back to the original position are shortened, the working efficiency of the unmanned mining truck is improved, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned mining trucks, in particular to a lifting cylinder base sliding device of an unmanned mining truck. Background Art

[0002] As the country tightens regulations on automobile emissions, new energy vehicles are experiencing rapid growth. Heavy-duty trucks, the sector with the most severe emissions, are experiencing even faster electrification. With the development of electrification in heavy-duty trucks, the level of intelligent driving is also continuously improving, gradually evolving from intelligent assisted driving systems to autonomous driving systems. Mining trucks, due to their limited operating environments and fixed routes, have led many companies to successfully develop autonomous driving systems, thus giving rise to the unmanned mining truck.

[0003] During the mining process, due to the large loading mass, unmanned mining trucks still use the unloading mode of heavy-duty dump trucks, that is, the lifting cylinder in front of the car body pushes the cargo body to lift the car body to a certain angle at a constant speed, and then lets the ore in the car body slide out of the car body to complete the unloading.

[0004] However, in the existing operation mode, the lifting cylinder base is fixed and cannot be moved, the unmanned mining truck has a slow unloading speed and low operation efficiency.

[0005] Therefore, based on the above technical problems, technicians in this field urgently need to develop a lifting cylinder base sliding device for an unmanned mining truck. Utility Model Content

[0006] The purpose of this utility model is to provide a lifting cylinder base sliding device for an unmanned mining truck, through which the lifting cylinder base sliding device can enable the lifting cylinder base of the unmanned mining truck to move forward and backward, thereby reducing the time it takes for the carriage of the unmanned mining truck to be lifted to a maximum angle and the time it takes to fall back to its original position, thereby improving the working efficiency of the unmanned mining truck and reducing operating costs.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] The utility model discloses a lifting cylinder base sliding device for an unmanned mining truck, which is integrated between the frame of the unmanned mining truck and the lifting cylinder base. The sliding device includes:

[0009] guide rail assembly; and

[0010] Hydraulic push rod;

[0011] The guide rail assembly comprises a slider connected to the lifting cylinder base, and the slider is slidably connected to the guide rail;

[0012] The push rod of the hydraulic push rod is connected to one side of the lifting cylinder base, and the lifting cylinder base is driven to move back and forth along the guide track by the push rod.

[0013] Furthermore, the guide rail assembly includes:

[0014] Symmetrically arranged guide rail fixing seats; and

[0015] The guide rail is arranged between the two guide rail fixing seats;

[0016] The body of the hydraulic push rod is fixed on the guide rail fixing seat close to the front side of the unmanned mining truck, and the push rod of the hydraulic push rod extends horizontally toward the lifting cylinder base and is connected to the side surface of the lifting cylinder base.

[0017] Furthermore, the slider and the guide rail are configured as a rolling friction connection structure.

[0018] Furthermore, the guide rail is internally formed as a guide groove, and the guide groove is filled with balls;

[0019] The sliding block forms rolling friction with the guide rail through the balls.

[0020] Furthermore, a distance sensor is provided on the hydraulic push rod, and the distance sensor is used to monitor the extension length of the push rod.

[0021] In the above technical solution, the utility model provides a lifting cylinder base sliding device for an unmanned mining truck, which has the following beneficial effects:

[0022] The sliding device of the utility model can enable the lifting cylinder base of the unmanned mining truck to move forward and backward, thereby reducing the time for the unmanned mining truck's carriage to be lifted to the maximum angle and the time for it to fall back to its original position, thereby improving the working efficiency of the unmanned mining truck and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 This is a front view of a lifting cylinder base sliding device of an unmanned mining truck disclosed in an embodiment of the utility model;

[0025] Figure 2The present invention is a top view of a lifting cylinder base sliding device of an unmanned mining truck disclosed in an embodiment of the present invention.

[0026] Description of Figure Numbers:

[0027] 1. Hydraulic push rod; 2. Guide rail fixing seat; 3. Guide rail; 4. Slider; 5. Lifting cylinder; 6. Ball bearing;

[0028] 501. Lifting cylinder base. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] See also Figures 1 and 2 As shown;

[0031] The present embodiment provides a sliding device for the lifting cylinder base of an unmanned mining truck. The sliding device is integrated between the frame of the unmanned mining truck and the lifting cylinder base. The sliding device includes:

[0032] guide rail assembly; and

[0033] Hydraulic push rod 1;

[0034] The guide rail assembly has a slider 4 connected to the lifting cylinder base 501, and the slider 4 is slidably connected to the guide rail 3;

[0035] The push rod of the hydraulic push rod 1 is connected to one side of the lifting cylinder base 501 , and drives the lifting cylinder base 501 to move back and forth along the guide track 3 through the push rod.

[0036] Specifically, this embodiment discloses a lifting cylinder base sliding device suitable for use in unmanned mining trucks. The device is integrated with the vehicle frame and the lifting cylinder base 501, and can be driven to move the lifting cylinder base 501 via a hydraulic push rod 1 to adjust the position of the lifting cylinder 5. To further enable the hydraulic push rod 1 to drive the movement of the lifting cylinder base 501, this embodiment incorporates a guide rail assembly. The slider 4 on the slider is connected to the lifting cylinder base 501, and the slideway connection between the slider 4 and the guide rail 3 guides the lifting cylinder 5 during movement.

[0037] Preferably, the guide rail assembly of this embodiment includes:

[0038] Symmetrically arranged guide rail fixing seats 2; and

[0039] A guide rail 3 is provided between the two guide rail fixing seats 2;

[0040] The main body of the hydraulic push rod 1 is fixed on the guide rail fixing seat 2 near the front side of the unmanned mining truck, and the push rod of the hydraulic push rod 1 extends horizontally toward the lifting cylinder base 501 and is connected to the side of the lifting cylinder base 501.

[0041] The guide rail fixing seat 2 of this embodiment is assembled and fixed to the vehicle frame by bolts.

[0042] In order to further reduce the friction force when the slider 4 moves, the slider 4 and the guide rail 3 of this embodiment are configured as a rolling friction connection structure.

[0043] Preferably, the guide rail 3 of this embodiment is formed as a guide groove, and the guide groove is filled with balls 6;

[0044] The sliding block 4 forms rolling friction with the guide rail 3 through the balls 6 .

[0045] This embodiment further defines the structure of the guide rail assembly, which has guide rail fixing seats 2 on both sides, and the guide rail 3 is connected between the two guide rail fixing seats 2. The guide rail 3 of this embodiment can accommodate a guide groove of multiple balls 6 through its upper plane and two side plane groups, and the baffle structure is formed by the upper plane and two side planes to prevent the balls 6 from sliding out of the guide groove. The balls 6 of this embodiment can roll in the guide groove to realize the rolling connection between the slider 4 and the guide rail 3, and reduce the movement resistance of the slider 4 through rolling friction.

[0046] In order to monitor the moving distance, the hydraulic push rod 1 of this embodiment is provided with a distance sensor, which is used to monitor the extension length of the push rod.

[0047] When the lifting cylinder 5 of the unmanned mining truck starts to lift, the hydraulic push rod 1 pushes the lifting cylinder base 501 toward the rear of the vehicle, thereby reducing the time it takes for the vehicle body of the unmanned mining truck to be lifted to the maximum angle and the time it takes for the vehicle body to fall back to the subframe.

[0048] When doing specific operations:

[0049] Step 1: After the unmanned mining truck is fully loaded with iron ore and transported to the unloading location, the unmanned mining truck control system sends a signal to the unmanned mining truck hydraulic system to start unloading, and the lifting cylinder 5 starts to extend.

[0050] Step 2: After receiving the lifting signal feedback from the lifting cylinder 5, the unmanned mining truck control system sends a signal to the lifting cylinder sliding device of the unmanned mining truck. The hydraulic push rod 5 starts to push the lifting cylinder base 501 backward. Since the lifting cylinder base 501 is connected to the slider 4 as a whole, the slider 4 drives the lifting cylinder 5 to move toward the rear of the vehicle along the guide track 3.

[0051] Step 3: When the unmanned mining truck control system detects that the carriage is lifted to the maximum unloading angle, it sends a signal to the lifting cylinder 5 and the hydraulic push rod 1, and the lifting cylinder 5 and the hydraulic push rod 1 stop moving to keep the carriage lifted at the maximum unloading angle.

[0052] Step 4: When the unmanned mining truck's control system detects that the ore has been unloaded, it sends a signal to the lifting cylinder 5 and hydraulic push rod 1, causing them to retract back to their original position. The slider then drives the lifting cylinder 5 along the guide rail toward the front of the vehicle.

[0053] Step 5: When the control system of the unmanned mining truck detects that the hydraulic push rod 1 returns to its initial position according to the distance sensor, the mining truck automatically drives to the loading area.

[0054] In the above technical solution, the utility model provides a lifting cylinder base sliding device for an unmanned mining truck, which has the following beneficial effects:

[0055] The sliding device of the present invention allows the unmanned mining truck lifting cylinder base 501 to move forward and backward, thereby reducing the time it takes for the unmanned mining truck's carriage to be lifted to a maximum angle and returned to its original position, thereby improving the working efficiency of the unmanned mining truck and reducing operating costs.

[0056] The sliding device of the utility model can reduce the time for the carriage to be lifted to the maximum angle and then lowered, thereby saving the operating cost of mine development.

[0057] The sliding device of the utility model utilizes the distance sensor integrated in the hydraulic push rod 1 to transmit signals to the control system of the unmanned mining truck in real time, thereby realizing automatic control of the unmanned mining truck carriage unloading.

[0058] The sliding device of the present invention adopts rolling friction between the guide rail 3 and the slider 4, which can reduce the friction of the slider 4, reduce the wear of the slider 4 and the guide rail 3, and at the same time reduce the force required to move the slider 4, thereby realizing the miniaturization of the hydraulic push rod 1.

[0059] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lifting cylinder base sliding device for an unmanned mining truck, characterized in that: The sliding device is integrated between the frame and the lifting cylinder base of the unmanned mining truck, and the sliding device includes: guide rail assembly; and Hydraulic push rod (1); The guide rail assembly comprises a slider (4) connected to the lifting cylinder base (501), and the slider (4) is slidably connected to the guide rail (3); The push rod of the hydraulic push rod (1) is connected to one side of the lifting cylinder base (501), and the lifting cylinder base (501) is driven to move back and forth along the guide track (3) by the push rod.

2. The lifting cylinder base sliding device of an unmanned mining truck according to claim 1, characterized in that: The guide rail assembly comprises: A symmetrically arranged guide rail fixing seat (2); and The guide rail (3) is arranged between the two guide rail fixing seats (2); The main body of the hydraulic push rod (1) is fixed on the guide rail fixing seat (2) close to the front side of the unmanned mining truck, and the push rod of the hydraulic push rod (1) extends horizontally toward the lifting cylinder base (501) and is connected to the side of the lifting cylinder base (501).

3. The lifting cylinder base sliding device of an unmanned mining truck according to claim 2, characterized in that: The slider (4) and the guide rail (3) are configured as a rolling friction connection structure.

4. The lifting cylinder base sliding device of an unmanned mining truck according to claim 3, characterized in that: The guide rail (3) is internally formed as a guide groove, and the guide groove is filled with balls (6); The sliding block (4) forms rolling friction with the guide rail (3) through the balls (6).

5. The lifting cylinder base sliding device of an unmanned mining truck according to claim 1, characterized in that: The hydraulic push rod (1) is provided with a distance sensor, and the distance sensor is used to monitor the extension length of the push rod.

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