Steel tray capable of reducing tension-shear damage of steel belt for mining machinery

Abstract

The utility model relates to the technical field of steel pallets, and discloses a mining machinery steel pallet capable of reducing tension-shear damage of a steel belt, which comprises a steel pallet body, an arc-shaped safe edge is arranged in the middle of the upper surface of the steel pallet body, and a shock-absorbing seat is arranged at the lower end of the steel pallet body. When the steel tray for the mining machinery is used, after an anchor rod is installed, the steel belt is inserted into the anchor rod, the steel belt is tightly attached to the surface of surrounding rock, then the steel tray body is installed, and finally the nut is installed and screwed, so that the whole supporting of the surrounding rock is achieved. At the moment, the steel belt exerts acting force on the shock absorption seat above the steel belt, the multiple shock absorption springs are compressed or stretched due to the acting force of the steel belt, impact force and vibration energy from the steel belt can be absorbed and dispersed through the elastic characteristic of the springs, and therefore vibration transmission is reduced; and therefore, the stretching or damage risk caused by excessive stress on the steel belt is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pallets, in particular to a steel pallet used for mining machinery and capable of reducing the shearing damage of steel belts. Background Art

[0002] As we all know, steel trays and steel belts for mining machinery are important components in anchor support, which have a great influence on the function of anchor support. A certain torque is applied to the nut through a torque wrench to make the tray press against the tunnel surface, provide pre-tightening force to the anchor, and diffuse the pre-tightening force into the coal and rock mass around the anchor, thereby improving the stress state of the surrounding rock, inhibiting the delamination of the surrounding rock, the sliding of the structural surface and the opening of the joints and fissures, and realizing the active and timely support of the anchor; the load generated by the deformation of the surrounding rock under the influence of ground stress and dynamic pressure acts on the tray, and the load is transferred to the anchor rod body through the tray, increasing the working resistance of the anchor, and giving full play to the role of the anchor in controlling the deformation of the surrounding rock. The steel belt can play the role of diffusing the prestress and working resistance of the anchor, supporting the tunnel surface and improving the stress state of the surrounding rock, balancing the force of the anchor and improving the overall support of the surrounding rock. The tray is installed on the steel belt to fix the steel belt and diffuse the prestress.

[0003] However, in the traditional steel pallet used in mining machinery, the steel belt may be subjected to tension and shear force during use. If the force is too large, it may cause the steel belt to stretch or be damaged, thereby affecting the effect of the surrounding rock support system. Therefore, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a steel pallet for mining machinery is proposed which can reduce the shear damage of steel belts. When the steel pallet for mining machinery is used, the steel belts are inserted into the anchor rods after the anchor rods are installed, so that the steel belts are close to the surface of the surrounding rock, and then the steel pallet body is installed. Finally, the nuts are installed and tightened to achieve overall support of the surrounding rock. During the working process, when the equipment is working or the geological movement occurs, the surrounding rock support system will be impacted. At this time, the steel belt is subjected to the force exerted on the upper shock-absorbing seat. At this time, multiple shock-absorbing springs are compressed or stretched due to the force of the steel belt. The elastic characteristics of the springs enable them to absorb and disperse the impact force and vibration energy from the steel belt, thereby reducing the transmission of vibration, thereby reducing the risk of stretching or damage caused by excessive force on the steel belt.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A steel pallet for mining machinery that can reduce shear damage to steel belts comprises a steel pallet body, an arc-shaped edge guard is arranged in the middle of the upper surface of the steel pallet body, a shock-absorbing seat is arranged at the lower end of the steel pallet body, a plurality of through grooves are opened on the upper surface of the shock-absorbing seat, a connecting rod is fixedly connected to the inner wall of the through groove on one side close to the center of the steel pallet body, a shock-absorbing spring is sleeved on the outer wall of the connecting rod, a sliding sleeve is fixedly connected to the shock-absorbing spring on one side close to the center of the steel pallet body, and the upper end of the sliding sleeve is hingedly connected to a hinged rod.

[0007] Through the above technical scheme, compared with the existing steel pallet for mining machinery, when the steel pallet for mining machinery is used, the bottom end of the ground nail is inserted into the surrounding rock, so that the steel pallet body can sink, thereby limiting the steel pallet body, and the distance between the steel pallet body and the shock absorber seat can be easily adjusted through the nut, thereby adjusting the overall tension of the spring, which can adapt to the changes of the surrounding rock in time, maintain the stability of the support system, and has high practical performance.

[0008] Furthermore, the upper ends of the hinged rods are hingedly connected to the lower ends of the steel pallet body;

[0009] Through the above technical solution, the upper end of the hinged rod is hingedly connected to the lower end of the steel pallet body, thereby facilitating connection with the steel pallet body.

[0010] Furthermore, an anchor rod installation hole is opened in the middle of the upper surface of the arc-shaped edge guard, and an anchor rod is connected to the inner thread of the anchor rod installation hole. The anchor rod passes through the steel pallet body and passes through the shock-absorbing seat to the lower end of the shock-absorbing seat;

[0011] With the above technical solution, the anchor rod can be easily installed through the anchor rod installation hole.

[0012] Furthermore, a nut is sleeved on the upper end of the anchor rod body;

[0013] Through the above technical solution, the anchor rod can be easily fixed by the nut.

[0014] Furthermore, the four corners of the lower surface of the shock-absorbing seat are fixedly connected with ground nails;

[0015] Through the above technical solution, the ground nails can be easily inserted into the surrounding rock to improve stability.

[0016] Furthermore, the sliding sleeves are all slidably connected to the outer wall of the connecting rod;

[0017] Through the above technical solution, the sliding sleeve is slidably connected to the outer wall of the connecting rod, so that it can move along with the movement of the hinged rod.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model proposes a steel pallet for mining machinery that can reduce the shear damage of steel belts. Compared with the existing steel pallet for mining machinery, when the steel pallet for mining machinery is used, the steel belt is inserted into the anchor rod after the anchor rod is installed, so that the steel belt is close to the surface of the surrounding rock, and then the steel pallet body is installed, and finally the nut is installed and tightened to achieve overall support of the surrounding rock. During the working process, when the equipment is working or the geological movement occurs, the surrounding rock support system will be impacted. At this time, the steel belt is subjected to the force to apply a force to the upper shock-absorbing seat. At this time, multiple shock-absorbing springs are compressed or stretched due to the force of the steel belt. The elastic characteristics of the spring enable it to absorb and disperse the impact force and vibration energy from the steel belt, thereby reducing the transmission of vibration, thereby reducing the risk of stretching or damage caused by excessive force on the steel belt.

[0020] 2. The utility model proposes a steel pallet for mining machinery that can reduce the shear damage of steel belts. Compared with the existing steel pallet for mining machinery, when the steel pallet for mining machinery is used, the bottom ends of the ground nails are inserted into the surrounding rocks, so that the steel pallet body can sink, thereby limiting the steel pallet body. The distance between the steel pallet body and the shock-absorbing seat can be adjusted conveniently through the nut, thereby adjusting the overall tension of the spring. It can adapt to the changes of the surrounding rocks in time, maintain the stability of the support system, and has high practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an axonometric diagram of a steel tray for mining machinery that can reduce shear damage to steel belts proposed by the utility model;

[0022] Figure 2 This is an axonometric schematic diagram of a steel tray for mining machinery that can reduce shear damage to steel belts proposed by the utility model;

[0023] Figure 3 This is an axial section of a steel tray for mining machinery that can reduce shear damage to steel belts proposed by the utility model;

[0024] Figure 4 This is a front view of a base in a steel tray for a mining machine that can reduce shear damage to a steel belt, as proposed by the utility model;

[0025] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Steel pallet body; 2. Arc-shaped edge protection; 3. Shock-absorbing seat; 4. Anchor rod mounting hole; 5. Through slot; 6. Connecting rod; 7. Shock-absorbing spring; 8. Sliding sleeve; 9. Articulated rod; 10. Anchor rod; 11. Nut; 12. Ground nail. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-5 The utility model provides an embodiment: a steel pallet for mining machinery that can reduce the shear damage of steel belts, including a steel pallet body 1, an arc-shaped edge guard 2 is arranged in the middle of the upper surface of the steel pallet body 1, a shock-absorbing seat 3 is arranged at the lower end of the steel pallet body 1, and a plurality of through grooves 5 are opened on the upper surface of the shock-absorbing seat 3. A connecting rod 6 is fixedly connected to the inner wall of the through groove 5 near the center of the steel pallet body 1. A shock-absorbing spring 7 is sleeved on the outer wall of the connecting rod 6. A sliding sleeve 8 is fixedly connected to the shock-absorbing spring 7 near the center of the steel pallet body 1. The upper end of the sliding sleeve 8 is hingedly connected to a hinged rod 9.

[0030] Compared with the existing steel pallet for mining machinery, when the steel pallet for mining machinery is used, the bottom end of the ground nail 12 is inserted into the surrounding rock, so that the steel pallet body 1 can sink, thereby limiting the steel pallet body 1, and the distance between the steel pallet body 1 and the shock absorbing seat 3 can be adjusted conveniently through the nut 11, thereby adjusting the overall tension of the spring, which can adapt to the changes of the surrounding rock in time, maintain the stability of the support system, and has high practical performance.

[0031] The upper ends of the hinged rods 9 are hingedly connected to the lower ends of the steel pallet body 1, and the upper ends of the hinged rods 9 are hingedly connected to the lower ends of the steel pallet body 1, so as to facilitate connection with the steel pallet body 1. An anchor rod mounting hole 4 is opened in the middle of the upper surface of the arc-shaped edge guard 2, and the internal thread of the anchor rod mounting hole 4 is connected with an anchor rod 10. The anchor rod 10 passes through the steel pallet body 1 and passes through the shock-absorbing seat 3 to the lower end of the shock-absorbing seat 3. The anchor rod 10 is conveniently installed through the anchor rod mounting hole 4. The upper end of the rod body of the anchor rod 10 is sleeved with a nut 11, and the nut 11 is convenient for fixing the anchor rod 10. The four corners of the lower surface of the shock-absorbing seat 3 are fixedly connected with ground nails 12, which are convenient for inserting into the surrounding rock to improve stability. The sliding sleeves 8 are slidably connected to the outer wall of the connecting rod 6, and are slidably connected to the outer wall of the connecting rod 6 through the sliding sleeves 8, so as to move with the movement of the hinged rod 9.

[0032] Working principle: When in use, after installing the anchor rod 10, insert the steel belt into the anchor rod 10, make the steel belt close to the surface of the surrounding rock, and then install the steel tray body 1, finally install the nut 11 and tighten it to achieve overall support of the surrounding rock. During the working process, when the equipment is working or the geological movement occurs, the surrounding rock support system will be impacted. At this time, the steel belt is subjected to the force to apply a force to the upper shock-absorbing seat 3. At this time, the hinged rod 9 drives the sliding sleeve 8 to move, and the movement of the sliding sleeve 8 drives multiple shock-absorbing springs 7 to be compressed or stretched. The elastic characteristics of the spring enable it to absorb and disperse the impact force and vibration energy from the steel belt, thereby reducing the transmission of vibration, thereby reducing the risk of stretching or damage caused by excessive force on the steel belt. The bottom end of the ground nail 12 is inserted into the surrounding rock, which can cause the steel tray body 1 to sink, thereby limiting the steel tray body 1. The nut 11 is used to facilitate the adjustment of the distance between the steel tray body 1 and the shock-absorbing seat 3, thereby adjusting the overall tension of the spring, which can adapt to the changes in the surrounding rock in time and maintain the stability of the support system.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel pallet for mining machinery capable of reducing shear damage to steel belts, comprising a steel pallet body (1), characterized in that: An arc-shaped edge guard (2) is arranged in the middle of the upper surface of the steel pallet body (1), a shock-absorbing seat (3) is arranged at the lower end of the steel pallet body (1), a plurality of through grooves (5) are opened on the upper surface of the shock-absorbing seat (3), a connecting rod (6) is fixedly connected to the inner wall of the through groove (5) on one side close to the center of the steel pallet body (1), a shock-absorbing spring (7) is sleeved on the outer wall of the connecting rod (6), a sliding sleeve (8) is fixedly connected to the one side of the shock-absorbing spring (7) close to the center of the steel pallet body (1), and the upper end of the sliding sleeve (8) is hingedly connected to a hinged rod (9).

2. A steel pallet for mining machinery capable of reducing shear damage of steel belts according to claim 1, characterized in that: The upper ends of the hinged rods (9) are hingedly connected to the lower end of the steel pallet body (1).

3. A steel pallet for mining machinery capable of reducing shear damage of steel belts according to claim 1, characterized in that: An anchor rod mounting hole (4) is provided in the middle of the upper surface of the arc-shaped edge guard (2), and an anchor rod (10) is connected to the inner thread of the anchor rod mounting hole (4). The anchor rod (10) passes through the steel pallet body (1) and passes through the shock absorbing seat (3) to the lower end of the shock absorbing seat (3).

4. A steel pallet for mining machinery capable of reducing shear damage of steel belts according to claim 3, characterized in that: The upper end of the anchor rod (10) is sleeved with a nut (11).

5. A steel pallet for mining machinery capable of reducing shear damage of steel belts according to claim 1, characterized in that: Ground nails (12) are fixedly connected at the four corners of the lower surface of the shock-absorbing seat (3).

6. A steel pallet for mining machinery capable of reducing shear damage of steel belts according to claim 1, characterized in that: The sliding sleeves (8) are all slidably connected to the outer wall of the connecting rod (6).

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