Mounting structure for lifting pilot valve of mining dump truck

Abstract

The utility model discloses a mining dump truck lifting pilot valve mounting structure which comprises a mounting plate and a wire harness fixing component, the mounting plate is longitudinally provided with a connecting through hole and a fixing threaded hole, and the fixing threaded hole is provided with a fixing screw; the connecting body is located on the lower portion of the connecting through hole and provided with a threaded blind hole, and the connecting bolt penetrates through the connecting through hole to be connected to the threaded blind hole. A plurality of threading holes are transversely formed in the mounting plate, and the wire harness fixing parts are arranged on the side parts of the threading holes; openings of the threading holes are located in the two opposite side walls of the mounting plate, and wire pressing plate threaded holes are formed in the two sides of the upper portions of the side walls of the mounting plate respectively. The wire harness fixing component comprises a wire harness pressing plate and pressing plate screws, the wire harness pressing plate is provided with a plurality of arc-shaped sections, the arc-shaped sections are located above the wire penetrating holes, pressing plate through holes are formed in the two ends of the wire harness pressing plate respectively, and the pressing plate screws penetrate through the pressing plate through holes to be connected into the wire pressing plate threaded holes. The lifting pilot valve can be firmly connected, and normal transmission of signals is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of lifting pilot valve installation structure, in particular to a lifting pilot valve installation structure for a mining dump truck. Background Art

[0002] The hydraulic lifting system of a dump truck is a static pressure transmission system. Its characteristics are that the oil flow rate is not fast, but the pressure is relatively high. Its main structure consists of power components, control components, actuators, auxiliary components and working media. The power component of the hydraulic system of a dump truck is a hydraulic pump, which can convert the mechanical energy of the engine into hydraulic energy. The control component adjusts the pressure, flow and direction of the hydraulic oil in the system. The actuator can convert hydraulic energy into mechanical energy, mainly referring to high and low pressure oil pipes, air pipes, ball valves, oil tanks, filters, various pipe joints, etc. The pilot valve is used as a control component to manipulate the auxiliary valve used by the control mechanism in other valves or components. It has the characteristics of relatively small input signals and can accept multiple input methods.

[0003] The lifting pilot valve on the mining dump truck needs to be fixed on the frame. At the same time, the lifting pilot valve is equipped with a sensor, which needs to receive control signals and output status information. Since mining dump trucks work for a long time and the road conditions are poor, the lifting pilot valve is in a bumpy and vibrating condition for a long time. The lifting pilot valve is prone to failure, resulting in the mining dump truck's box cannot be lifted and lowered normally. Utility Model Content

[0004] The utility model aims to provide a lifting pilot valve installation structure for a mining dump truck, which can firmly connect the lifting pilot valve and ensure normal signal transmission.

[0005] The technical solution is as follows:

[0006] The lifting pilot valve mounting structure of a mining dump truck comprises: a mounting plate and a wiring harness fixing component, wherein the mounting plate is longitudinally provided with a connecting through hole and a fixing threaded hole, and the fixing threaded hole is provided with a fixing screw; a connecting body is located at the lower part of the connecting through hole, and the connecting body is provided with a threaded blind hole, and the connecting bolt passes through the connecting through hole and is connected to the threaded blind hole; a plurality of threading holes are transversely provided on the mounting plate, and the wiring harness fixing component is arranged on the side of the threading hole; the opening of the threading hole is located at two opposite side walls of the mounting plate, and threaded holes of a wire pressing plate are respectively arranged on both sides above the side walls of the mounting plate, and the openings of the threading holes of the wire pressing plate and the threading holes are located on the same side wall; the wiring harness fixing component comprises: a wiring harness pressing plate and a pressing plate screw, wherein the wiring harness pressing plate is provided with a plurality of arc segments, and the arc segments are located above the threading holes, and pressing plate through holes are respectively arranged at both ends of the wiring harness pressing plate, and the pressing plate screw passes through the pressing plate through holes and is connected to the threaded holes of the wire pressing plate.

[0007] Furthermore, the wiring harness fixing component also includes: a fixed threaded head, an internal thread is arranged on the inner wall of the threading hole near the opening, the fixed threaded head is installed at the opening, the fixed threaded head is a tubular structure, a rotating block is arranged on the outer wall in the middle, a rubber ring is arranged inside, and external threads are arranged on the outer walls of the fixed threaded head on both sides of the rotating block, and one end of the fixed threaded head is threadedly connected to the opening of the threading hole.

[0008] Furthermore, the wiring harness fixing component also includes: a fixed threaded cap and a threaded end. The threaded end is arranged at the opening of the threading hole, and the outer wall of the threaded end is provided with an external thread; the inner wall of the fixed threaded cap is provided with an internal thread, and the rear end is provided with an annular closing end. A rubber ring is provided inside the fixed threaded cap, and the fixed threaded cap is threadedly connected to the threaded end.

[0009] Furthermore, the harness fixing component also includes: a rubber positioning head, which is a tubular structure, a limiting ring is arranged on the outer wall of the middle part, and the end of the rubber positioning head is inserted into the opening of the threading hole.

[0010] Furthermore, the mounting plate is a rectangular plate, the two connecting through holes are respectively located at two opposite corners of the rectangular plate, the two fixing threaded holes are respectively located at two opposite corners of the rectangular plate, and the fixing threaded holes are located inside the connecting through holes.

[0011] The harness pressing plate is provided with three arc sections, and the mounting plate is transversely provided with three threading holes.

[0012] Furthermore, a zero connection threaded hole is provided on the side wall of the mounting plate, and a zero connection screw is installed in the zero connection threaded hole.

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

[0014] The utility model can firmly connect the lifting pilot valve, ensure the normal transmission of the signal output / input signal of the lifting pilot valve, and thus ensure the normal lifting and lowering of the box bucket of the mining dump truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of the installation structure of the lifting pilot valve of the mining dump truck. DETAILED DESCRIPTION

[0016] The following description sufficiently illustrates specific embodiments of the present invention to enable those skilled in the art to practice and reproduce the same.

[0017] like Figure 1 The figure is a schematic diagram of the structure of the installation structure of the lifting pilot valve of the mining dump truck in the utility model.

[0018] The lifting pilot valve mounting structure for a mining dump truck comprises: a mounting plate 1, a harness fixing component 2, the mounting plate 1 is longitudinally provided with a plurality of connecting through holes 11 and a plurality of fixing threaded holes 12, the fixing threaded holes 12 are provided with fixing screws 14; a connecting body 15 is provided at the lower part of the connecting through hole 11, the connecting body is provided with a threaded blind hole 16, a connecting bolt 13 passes through the connecting through hole 11 and is connected to the threaded blind hole 16; a plurality of threading holes 17 are transversely provided on the mounting plate 1, and the harness fixing component 2 is provided at the side of the threading hole 17; The opening of the threading hole 17 is located at the two opposite side walls of the mounting plate 1, and the side walls of the mounting plate 1 on the side of the opening of the threading hole 17 are respectively provided with wire pressing plate threaded holes on both sides; the wiring harness fixing component 2 includes: a wire harness pressing plate 21, a pressing plate screw 22, the wire harness pressing plate 21 is provided with a plurality of arc segments 23, the arc segments 23 are located above the threading hole 17, and the two ends of the wire harness pressing plate 21 are respectively provided with pressing plate through holes, the pressing plate screws 22 are arranged in the pressing plate through holes, and the pressing plate screws 22 pass through the pressing plate through holes and are connected to the wire pressing plate threaded holes.

[0019] The mounting plate 1 is a rectangular plate, the two connecting through holes 11 are respectively located at two opposite corners of the rectangular plate, the two fixing threaded holes 12 are respectively located at two opposite corners of the rectangular plate, and the fixing threaded holes 12 are located inside the connecting through holes 11 .

[0020] The harness pressing plate 21 is provided with three arc sections 23 , and the mounting plate 1 is transversely provided with three threading holes 17 ; the harness fixing component 2 further includes: a fixed thread head 24 , a fixed thread cap 25 , a rubber positioning head 26 , and a thread end 27 .

[0021] An internal thread is provided on the inner wall near the opening of the threading hole 17, and a fixed thread head 24 is installed at the opening to fix the wire harness passing through the threading hole 17; the fixed thread head 24 is a tubular structure, a rotary block is provided on the outer wall of the middle part, a rubber ring is provided inside, and external threads are provided on the outer walls of the fixed thread heads 24 on both sides of the rotary block, and one end of the fixed thread head 24 is threadedly connected to the opening of the threading hole 17. The wire harness passes through the rubber ring into the threading hole 17, and the fixed thread head 24 can not only fix the wire harness, but also play a role of shock absorption and sealing.

[0022] A threaded end 27 is provided at the opening of the threading hole 17, and an outer wall of the threaded end 27 is provided with an outer thread; an inner wall of the fixed threaded cap 25 is provided with an inner thread, and a ring-shaped closing is provided at the rear end. A rubber ring is provided inside the fixed threaded cap 25, and the fixed threaded cap 25 is threadedly connected to the threaded end 27. The wire harness passes through the rubber ring and enters the threading hole 17. The fixed threaded cap 25 can not only fix the wire harness, but also play a role of shock absorption and sealing.

[0023] The rubber positioning head 26 is a tubular structure made of rubber, with a limit ring provided on the outer wall in the middle, and the end of the rubber positioning head 26 is plugged into the opening of the threading hole 17. The wire harness passes through the rubber positioning head 26 into the threading hole 17, and the rubber positioning head 26 can not only fix the wire harness, but also play a role in shock absorption and sealing.

[0024] The side wall of the mounting plate 1 is provided with a zero connection threaded hole, and a zero connection screw 18 is installed in the zero connection threaded hole. The zero connection screw 18 is used to fix the zero line of the sensor.

[0025] When in use, the connecting bolt 13 passes through the connecting through hole 11 and is connected to the threaded blind hole 16, the two connectors 15 are respectively connected to the bottom of the mounting plate 1, the connector 15 is welded to the appropriate position of the frame longitudinal beam, the connecting bolt 13 is removed, and the lifting pilot valve is fixed to the mounting plate 1 with the fixing screw 14; the main oil inlet, main oil return port, working oil port, working oil return port, etc. of the lifting pilot valve are connected with pipelines, and the connectors of the input cable and the output cable are connected to the jack of the lifting pilot valve; the input cable and the output cable respectively pass through the two arc sections 23 of the wiring harness pressure plate 21, and the wiring harness pressure plate 21 is fastened with the pressure plate screw 22, and the input cable and the output cable respectively pass through the fixed threaded head 24 and the fixed threaded cap 25 to enter the threading hole 17, and the input cable and the output cable coming out of the threading hole 17 enter the cab to be connected to the corresponding control terminal.

[0026] 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 pilot valve installation structure for a mining dump truck, characterized in that: include: A mounting plate and a wiring harness fixing component. The mounting plate is longitudinally provided with a connecting through hole and a fixing threaded hole, and the fixing threaded hole is provided with a fixing screw; the connecting body is located at the lower part of the connecting through hole, and the connecting body is provided with a threaded blind hole, and the connecting bolt passes through the connecting through hole and is connected to the threaded blind hole; the mounting plate is horizontally provided with a plurality of threading holes, and the wiring harness fixing component is arranged on the side of the threading hole; the opening of the threading hole is located at two opposite side walls of the mounting plate, and the upper two sides of the side wall of the mounting plate are respectively provided with a wire pressing plate threaded hole, and the opening of the wire pressing plate threaded hole and the threading hole are located on the same side wall; the wiring harness fixing component includes: a wire harness pressing plate and a pressing plate screw. The wire harness pressing plate is provided with a plurality of arc segments, and the arc segments are located above the threading hole. Both ends of the wire harness pressing plate are respectively provided with pressing plate through holes, and the pressing plate screws pass through the pressing plate through holes and are connected to the wire pressing plate threaded holes.

2. The mining dump truck lifting pilot valve installation structure according to claim 1 is characterized in that: The wiring harness fixing component also includes: a fixed threaded head, an internal thread is arranged on the inner wall of the threading hole near the opening, the fixed threaded head is installed at the opening, the fixed threaded head is a tubular structure, a rotating block is arranged on the outer wall in the middle, a rubber ring is arranged inside, and external threads are arranged on the outer walls of the fixed threaded head on both sides of the rotating block, and one end of the fixed threaded head is threadedly connected to the opening of the threading hole.

3. The lifting pilot valve installation structure for a mining dump truck according to claim 1 is characterized in that: The wiring harness fixing component also includes: a fixed threaded cap and a threaded end. The threaded end is arranged at the opening of the threading hole, and the outer wall of the threaded end is provided with an external thread; the inner wall of the fixed threaded cap is provided with an internal thread, and the rear end is provided with an annular closing end. A rubber ring is provided inside the fixed threaded cap, and the fixed threaded cap is threadedly connected to the threaded end.

4. The lifting pilot valve installation structure for a mining dump truck according to claim 1 is characterized in that: The harness fixing component also includes: a rubber positioning head, which is a tubular structure, a limiting ring is arranged on the outer wall of the middle part, and the end of the rubber positioning head is inserted into the opening of the threading hole.

5. The lifting pilot valve installation structure for a mining dump truck according to claim 1 is characterized in that: The mounting plate is a rectangular plate, the two connecting through holes are respectively located at two opposite corners of the rectangular plate, the two fixing threaded holes are respectively located at two opposite corners of the rectangular plate, and the fixing threaded holes are located inside the connecting through holes.

6. The lifting pilot valve installation structure for a mining dump truck according to claim 1, characterized in that: The harness pressing plate is provided with three arc sections, and the mounting plate is transversely provided with three threading holes.

7. The mining dump truck lifting pilot valve installation structure according to claim 1, characterized in that: The side wall of the mounting plate is provided with a zero connection threaded hole, and the zero connection threaded hole is installed with a zero connection screw.

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