Self-service walking mechanism of crusher

Abstract

The utility model belongs to the technical field of mining machinery, and aims to solve the problem that the traveling wheel of a crusher is impacted by coal after being supported for a long time, the traveling wheel is easy to damage and lose efficacy, and the moving resistance is greatly increased. The utility model provides a self-service walking mechanism of a crusher. The self-service walking mechanism comprises a supporting structure, a moving mechanism and a lifting mechanism, the supporting mechanism is arranged at the lower end of a bottom plate of the crusher and used for supporting a crusher body. The moving mechanism comprises a wheel frame, wheel bodies and a gear transmission mechanism, the wheel frame is rotationally connected to the lower end of the lifting mechanism and can be kept vertical under the action of gravity, and the two wheel bodies are symmetrically hinged to a pair of base angle positions of the wheel frame and synchronously act under driving of the gear transmission mechanism; the moving mechanisms are symmetrically arranged on the two sides of the lower portion of the crusher body and used for driving the crusher to move. And the lifting mechanism is connected between the crusher body and the moving mechanism and is used for switching the running state and the supporting state of the crusher. The device can realize quick and stable movement of the crusher, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine machinery, and particularly relates to a self-help walking mechanism of a crusher. BACKGROUND

[0002] The crusher needs to be moved by 2-3 m to be completely removed from the coal bin mouth, so as to ensure that the belt is not hindered to discharge coal, and mainly relies on the walking wheel at the bottom to support and maintain movement on the track, since the walking wheel of the crusher is supported for a long time and is impacted by coal, the walking wheel is prone to damage and failure, which leads to a dramatic increase in moving resistance, and the crusher is completely moved on the track by friction.

[0003] The traditional solutions have the following defects: 1. winch dragging mode: there are problems such as wire rope breakage, pulley damage, fixed bolt cutting, dangerous operation and frequent maintenance; 2. hydraulic jack driving: due to the large weight and long stroke of the crusher, the oil cylinder piston rod is bent and deformed, and cannot be used stably; 3. manual chain reversal dragging: the chain reversal and jack need to be used by multiple people, and it takes more than 40 minutes, which is high in labor intensity and low in efficiency.

[0004] The above methods cannot meet the requirements of fast, safe and stable movement operation of the crusher. UTILITY MODEL CONTENTS

[0005] The utility model provides a self-help walking mechanism of a crusher to solve at least one of the above technical problems in the prior art.

[0006] The utility model adopts the following technical scheme: a self-help walking mechanism of a crusher, including support structure, moving mechanism and lifting mechanism, the support structure is arranged at the bottom plate lower end of the crusher and is used for supporting the crusher body, the moving mechanism includes a wheel frame, a wheel body and a gear transmission mechanism, the wheel frame is rotatably connected to the lower end of the lifting mechanism and can keep vertical under the action of gravity, a pair of bottom corners of the wheel frame are symmetrically hinged with two wheel bodies, the two wheel bodies are driven by the gear transmission mechanism and move synchronously, the moving mechanism is symmetrically arranged on both sides of the lower part of the crusher body and is used for driving the crusher to move, the lifting mechanism is connected between the crusher body and the moving mechanism and is used for switching the driving and supporting states of the crusher.

[0007] Preferably, the lifting mechanism includes a hydraulic oil cylinder and a lifting arm, both ends of the lifting arm are hingedly connected to the crusher body and the piston end of the hydraulic oil cylinder, the top corner of the wheel frame is hingedly connected to the middle part of the lifting arm, and the top end of the hydraulic oil cylinder is hingedly connected to the upper part of the crusher body.

[0008] Preferably, the wheel frame is a double-layer triangular wheel frame, the gear transmission mechanism comprises a hydraulic motor, a transmission gear and a driven gear, the hydraulic motor is installed at the wheel frame, the transmission gear is keyed connected with an output shaft of the hydraulic motor, the transmission gear is installed inside the double-layer triangular wheel frame, and the driven gear is keyed connected on a wheel shaft at the wheel body and meshes with the transmission gear to drive; and the connecting position of the lifting arm and the wheel frame is located inside the double-layer triangular wheel frame.

[0009] Preferably, the support structure comprises a plurality of support blocks which are arranged at intervals along the bottom plate of the crusher, and the support blocks are square high-strength nylon support blocks.

[0010] Preferably, the hydraulic control module comprises an oil pump, an oil cylinder control valve, a walking control valve and a safety valve; the oil outlet of the oil pump is connected with the oil inlets of the oil cylinder control valve, the walking control valve and the safety valve respectively, the working oil port of the oil cylinder control valve is connected with the hydraulic oil cylinder, the working oil port of the walking control valve is connected with the hydraulic motor, and the return oil ports of the oil cylinder control valve, the walking control valve and the safety valve are connected with the oil tank.

[0011] Compared with the prior art, the device has the advantages that:

[0012] The device can realize rapid and stable movement of the crusher, reduce labor intensity and prolong the service life of the device. The moving time is shortened from 40 minutes to 3-5 minutes, the efficiency is improved by 10 times, and only one person is needed for operation; the hydraulic drive rolling friction replaces the sliding friction, thereby reducing the resistance and equipment wear; the lifting mechanism avoids long-term pressure on the wheel body, thereby prolonging the service life; and the high-strength nylon support blocks provide buffer protection and reduce impact damage. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0014] Figure 1 is a front view of the crusher and the self-walking mechanism thereof;

[0015] Figure 2 is a side view of the crusher and the self-walking mechanism thereof;

[0016] Figure 3 is a side view of the connecting position of the moving mechanism and the lifting mechanism;

[0017] Figure 4 is a front view of the connecting position of the moving mechanism and the lifting mechanism;

[0018] Figure 5is a front view of the self-walking mechanism;

[0019] Figure 6 is a side view of the self-walking mechanism;

[0020] Figure 7 is a connection schematic diagram of the hydraulic control module.

[0021] In the figure: 1-supporting block; 2.1-wheel frame; 2.2-wheel body; 2.3-hydraulic motor; 2.4-driving gear; 2.5-driven gear; 3.1-hydraulic oil cylinder; 3.2-lifting arm; 4.1-oil pump; 4.2-oil cylinder control valve; 4.3-walking control valve; 4.4-safety valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model are clearly and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts fall within the scope of the utility model.

[0023] It should be understood that the structures, proportions, sizes and the like shown in the drawings of the specification are only used to cooperate with the disclosed content of the specification for understanding and reading by the person skilled in the art, and are not used to limit the limiting conditions of the implementable utility model, so they do not have the technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be produced by the utility model, should fall within the scope of the disclosed technical content of the utility model. It should be noted that in the specification, relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any actual relationship or order between the entities.

[0024] The utility model provides an embodiment:

[0025] As Figures 1 to 7As shown, a crusher self-walking mechanism comprises a support structure, a moving mechanism and a lifting mechanism; the support structure is arranged at the lower end of the bottom plate of the crusher and is used for supporting the crusher body; the moving mechanism comprises a wheel frame 2.1, a wheel body 2.2 and a gear transmission mechanism, the wheel frame 2.1 is rotationally connected to the lower end of the lifting mechanism and can be kept vertical under the action of gravity, a pair of bottom corners of the wheel frame 2.1 are symmetrically hinged with two wheel bodies 2.2, the two wheel bodies 2.2 synchronously act under the drive of the gear transmission mechanism, and the moving mechanism is symmetrically arranged at the two sides of the lower part of the crusher body and is used for driving the crusher to move; the lifting mechanism is connected between the crusher body and the moving mechanism and is used for switching the crusher between the driving and supporting states.

[0026] In the embodiment, the support structure comprises a plurality of support blocks 1 arranged at intervals along the bottom plate of the crusher, in order to improve the stability of the crusher and reduce the damage of the crusher to the support member, the support block 1 is made of a high-strength nylon conveyor belt with high strength, good elasticity, impact resistance, large interlayer adhesion strength and excellent flexibility, is cut into a square block with a size of 200X300mm, and is stacked into a thickness of 150mm, thereby playing a good supporting and buffering role and reducing the damage of the crusher to the support member and the base.

[0027] The lifting mechanism comprises a hydraulic oil cylinder 3.1 and a lifting arm 3.2, both ends of the lifting arm 3.2 are respectively hinged to the crusher body and the piston end of the hydraulic oil cylinder 3.1, the top corner of the wheel frame 2.1 is hinged to the middle position of the lifting arm 3.2, and the top end of the hydraulic oil cylinder 3.1 is hinged to the upper part of the crusher body.

[0028] The wheel frame 2.1 is a double-layer triangular wheel frame, the gear transmission mechanism comprises a hydraulic motor 2.3, a transmission gear 2.4 and a driven gear 2.5, the hydraulic motor 2.3 is installed at the wheel frame 2.1 and the output shaft is key-connected with the transmission gear 2.4, the transmission gear 2.4 is installed inside the double-layer triangular wheel frame, and the driven gear 2.5 is key-connected on the wheel shaft at the wheel body 2.2, the driven gear 2.5 and the transmission gear 2.4 are in meshing transmission; the connection part of the lifting arm 3.2 and the wheel frame 2.1 is located inside the double-layer triangular wheel frame.

[0029] The hydraulic control module further comprises an oil pump 4.1, an oil cylinder control valve 4.2, a walking control valve 4.3 and a safety valve 4.4; the oil outlet of the oil pump 4.1 is respectively connected with the oil inlet of the oil cylinder control valve 4.2, the walking control valve 4.3 and the safety valve 4.4, the working oil port of the oil cylinder control valve 4.2 is connected with the hydraulic oil cylinder 3.1, the working oil port of the walking control valve 4.3 is connected with the hydraulic motor 2.3, and the return oil ports of the oil cylinder control valve 4.2, the walking control valve 4.3 and the safety valve 4.4 are connected with the oil tank.

[0030] In order to protect the walking mechanism from being damaged by long-term heavy pressure and impact of coal, the moving mechanism is designed as a lifting type, that is, the wheel body is retracted when normally running, and is supported on the ground base by six rubber supporting blocks under the crusher. When the crusher fails or needs to be withdrawn for maintenance, the oil pump can be started, the oil cylinder control valve is operated, the four hydraulic oil cylinders of the moving mechanism push the lifting arm, four pairs of walking wheels are moved downward at the same time, the whole crusher is lifted about 20-50mm away from the track, then the walking control valve is operated, the crusher is driven by the driving force of four pairs of driving wheels, and is steadily moved out of the coal bunker at a speed of 1.2M / d, then the corresponding maintenance is carried out. After the fault is handled or the maintenance is completed, the walking control valve is operated in the same way, the crusher is moved to the position of the upper opening of the coal bunker, then the lifting control valve is operated, the wheel body is retracted, the support blocks under the crusher maintain the support of the crusher, and the crushing operation is carried out.

[0031] In the embodiment, the torque of the hydraulic motor needs to be adapted to the total weight of the crusher (≥50 tons), the pressure of the hydraulic system is set to 16-20MPa, the threshold of the safety valve is set to 1.2 times of the system pressure, and the nylon supporting block is made of high-strength conveyor belt by lamination, and has the characteristics of impact resistance and wear resistance.

[0032] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A self- walking mechanism for a crusher, characterized in that: The application relates to a mobile crusher, which comprises a support structure, a moving mechanism and a lifting mechanism; the support structure is arranged at the lower end of the bottom plate of the crusher and is used for supporting the crusher body; the moving mechanism comprises a wheel frame (2.1), a wheel body (2.2) and a gear transmission mechanism, the wheel frame (2.1) is rotationally connected to the lower end of the lifting mechanism and can keep vertical under the action of gravity, a pair of bottom corners of the wheel frame (2.1) are symmetrically hinged with two wheel bodies (2.2), the two wheel bodies (2.2) synchronously act under the drive of the gear transmission mechanism, the moving mechanism is symmetrically arranged at the two sides of the lower part of the crusher body and is used for driving the crusher to move; the lifting mechanism is connected between the crusher body and the moving mechanism and is used for switching the running and supporting states of the crusher.

2. A self-walking mechanism of a crusher according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic oil cylinder (3.1) and a lifting arm (3.2), the two ends of the lifting arm (3.2) are respectively hinged to the crusher body and the piston end of the hydraulic oil cylinder (3.1), the top corner of the wheel frame (2.1) is hinged to the middle part of the lifting arm (3.2), and the top end of the hydraulic oil cylinder (3.1) is hinged to the upper part of the crusher body.

3. A self-walking mechanism of a crusher according to claim 2, characterized in that: The wheel frame (2.1) is a double-layer triangular wheel frame, the gear transmission mechanism comprises a hydraulic motor (2.3), a transmission gear (2.4) and a driven gear (2.5), the hydraulic motor (2.3) is installed at the wheel frame (2.1) and the output shaft is key-connected with the transmission gear (2.4), the transmission gear (2.4) is installed inside the double-layer triangular wheel frame, the driven gear (2.5) is key-connected on the wheel shaft at the wheel body (2.2), and the driven gear (2.5) and the transmission gear (2.4) are in mesh transmission; the connecting part of the lifting arm (3.2) and the wheel frame (2.1) is located inside the double-layer triangular wheel frame.

4. The self-walking mechanism of the crusher according to claim 1, characterized in that: The support structure comprises a plurality of support blocks (1) which are arranged at intervals along the bottom plate of the crusher, and the support blocks (1) are square high-strength nylon support blocks.

5. The self-walking mechanism of the crusher according to claim 1, characterized in that: The application further comprises a hydraulic control module, which comprises an oil pump (4.1), an oil cylinder control valve (4.2), a walking control valve (4.3) and a safety valve (4.4); the oil outlet of the oil pump (4.1) is connected with the oil inlets of the oil cylinder control valve (4.2), the walking control valve (4.3) and the safety valve (4.4) respectively, the working oil port of the oil cylinder control valve (4.2) is connected with the hydraulic oil cylinder (3.1), the working oil port of the walking control valve (4.3) is connected with the hydraulic motor (2.3), and the return oil ports of the oil cylinder control valve (4.2), the walking control valve (4.3) and the safety valve (4.4) are connected with an oil tank.

Images