Top plate fracturing device in end head and tail stoping stage

Abstract

The utility model discloses an end head and tail stoping stage roof fracturing device which comprises a movable plate, an operation protection structure is installed at the upper end of the movable plate, and a movable supporting structure is installed at the lower end of the movable plate. The operation protection structure comprises a shear fork frame, a first hydraulic cylinder, a connecting sleeve, a conical operation head, six second hydraulic cylinders and two protection plates. The mode that the shear fork frame is matched with the first hydraulic cylinder and the multiple second hydraulic cylinders is adopted, fracturing operation of mine hole top plates of different heights can be achieved, the supporting mode of the protection plates on the two sides is adopted, the top plates on the two sides of a crack can be effectively and stably supported, and the stability of fracturing operation is guaranteed; and three groups of moving wheels are matched with a plurality of supporting screw rods, so that the device can be quickly moved and stably supported, and the overall stability of the device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mining technology, specifically to a roof fracturing device for the end-end and end-end mining stages. Background Technology

[0002] Roof fracturing devices in the end-and-end mining stages are commonly used equipment in mining operations. They are primarily used to control the fracturing of the roof during end-and-end mining to ensure the safe and efficient recovery of ore resources. The design and application of this device can help address safety hazards such as roof collapse and rock strata damage, while simultaneously enhancing mining efficiency.

[0003] However, when the current roof fracturing devices are used in the end-to-end mining stage, the ground at the construction site cannot be guaranteed to be flat, so the construction personnel need to temporarily level the site, which is quite cumbersome. Moreover, most of the current roof fracturing devices adopt a single-layer drive method, which cannot meet the mining needs of different specifications and has a limited scope of application. Utility Model Content

[0004] The present invention aims to provide a roof fracturing device for the end-end mining stage, which can realize roof fracturing operation at different heights of the mine, while ensuring the stability of the fracturing operation.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a roof fracturing device for the end-head and end-tail mining stage, comprising a movable plate, an operation protection structure installed at the upper end of the movable plate, and a movable support structure installed at the lower end of the movable plate;

[0006] The operational protection structure includes a scissor lift, a first hydraulic cylinder, a connecting sleeve, a conical operating head, six second hydraulic cylinders, and two protective plates.

[0007] The scissor lift is fixedly installed on the upper end of the movable plate, the first hydraulic cylinder is fixedly installed at the center of the upper end of the scissor lift, the connecting sleeve is installed on the telescopic end of the first hydraulic cylinder, the conical operating head is embedded in the upper end of the connecting sleeve, six second hydraulic cylinders are respectively installed on both sides of the upper end of the scissor lift, and two protective plates are respectively installed on the telescopic ends of the six second hydraulic cylinders.

[0008] Preferably, the movable support structure includes three movable brackets, three sets of movable wheels, several threaded sleeves, and several support screws;

[0009] The three movable brackets are respectively installed at the center of the lower end of the movable plate and on both sides. The three sets of movable wheels are respectively embedded in the three movable brackets. The several threaded sleeves are respectively embedded in the side walls of the movable plate. The several supporting screws are respectively movably embedded in the several threaded sleeves.

[0010] Preferably, a stabilizing frame is installed on the outside of the first hydraulic cylinder and the six second hydraulic cylinders.

[0011] Preferably, the lower two sides of the stabilizing frame are connected to the upper two sides of the scissor lift.

[0012] Preferably, the connection between the stabilizing frame and the scissor lift is provided with a connecting reinforcing rib.

[0013] The beneficial effects of this utility model are as follows: By employing a scissor lift, a first hydraulic cylinder, and multiple second hydraulic cylinders in coordination, it is possible to perform fracturing operations on the mine roof at different heights. Furthermore, the use of protective plates on both sides effectively provides stable support for the roof on both sides of the crack, ensuring the stability of the fracturing operation. Through the combination of three sets of moving wheels and several support screws, the device can be moved quickly and stably supported. Moreover, multiple support screws can be independently adjusted according to different construction sites, ensuring the overall stability of the device. Attached Figure Description

[0014] Figure 1 This is a front perspective view of the present invention.

[0015] Figure 2 This is a bottom-view perspective view of the present invention.

[0016] Figure 3 This is the main view of the structure of this utility model.

[0017] In the diagram: 1. Moving plate, 2. Scissor lift, 3. First hydraulic cylinder, 4. Connecting sleeve, 5. Conical operating head, 6. Second hydraulic cylinder, 7. Protective plate, 8. Moving bracket, 9. Moving wheel, 10. Threaded sleeve, 11. Support screw, 12. Stabilizing frame, 13. Connecting reinforcing rib. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] like Figure 1-3 As shown, a roof fracturing device for the end-to-end mining stage includes a movable plate 1, an operation protection structure installed at the upper end of the movable plate 1, and a movable support structure installed at the lower end of the movable plate 1.

[0020] The operating protection structure mainly consists of a scissor lift 2, a first hydraulic cylinder 3, a connecting sleeve 4, a conical operating head 5, six second hydraulic cylinders 6, and two protective plates 7.

[0021] The scissor lift 2 is fixedly installed on the upper end of the moving plate 1. The first hydraulic cylinder 3 is fixedly installed at the center of the upper end of the scissor lift 2. The connecting sleeve 4 is installed on the telescopic end of the first hydraulic cylinder 3. The conical operating head 5 is embedded in the upper end of the connecting sleeve 4. Six second hydraulic cylinders 6 are respectively installed on both sides of the upper end of the scissor lift 2. Two protective plates 7 are respectively installed on the telescopic ends of the six second hydraulic cylinders 6.

[0022] In use, the operator first moves the device to the designated position using the movable support structure. The movable plate 1 provides overall support for the device. Then, the operator operates the movable support structure to fix the movable plate 1 in the designated position. The operator drives the scissor lift 2 at the upper end of the movable plate 1 to initially adjust the overall height of the device. According to the cracking requirements of the top plate, the cone-shaped operating head 5 of the specified shape and specifications is embedded into the connecting sleeve 4, and the first hydraulic cylinder 3 is driven to work, pushing the cone-shaped operating head 5 to contact the cracking position of the top plate. Through the continuous work of the first hydraulic cylinder 3, the top plate is cracked. At the same time, the six second hydraulic cylinders 6 located on both sides of the upper end of the scissor lift 2 work, so that the two protective plates 7 successively contact the two sides of the crack in the top plate, supporting the two sides of the crack in the top plate and preventing greater danger if the top plate collapses.

[0023] In the specific implementation process, the mobile support structure mainly consists of three mobile supports 8, three sets of mobile wheels 9, several threaded sleeves 10, and several support screws 11.

[0024] Three movable supports 8 are respectively installed at the center of the lower end of the movable plate 1 and on both sides. Three sets of movable wheels 9 are respectively embedded in the three movable supports 8. Several threaded sleeves 10 are respectively embedded in the side walls of the movable plate 1. Several support screws 11 are respectively movably embedded in several threaded sleeves 10.

[0025] When moving and positioning this device, the entire moving plate 1 can be moved by the three sets of moving wheels 9 in the three moving brackets 8 contacting the ground. During positioning construction, the supporting screws 11 in the threaded sleeves 10 are turned so that the bottom ends of the supporting screws 11 are in contact with the ground. Depending on the construction situation, the supporting screws 11 are adjusted independently until the moving plate 1 is kept horizontal.

[0026] In the specific implementation process, a stabilizing frame 12 is installed on the outside of the first hydraulic cylinder 3 and the six second hydraulic cylinders 6.

[0027] In the specific implementation process, the lower two sides of the stabilizing frame 12 are connected to the upper two sides of the scissor lift 2 respectively.

[0028] In the specific implementation process, a connecting reinforcing rib 13 is provided at the connection between the stabilizing frame 12 and the scissor lift 2.

[0029] The stabilizing frame 12 effectively ensures the installation stability of the first hydraulic cylinder 3 and multiple second hydraulic cylinders 6, and the connecting reinforcing rib 13 between the stabilizing frame 12 and the scissor lift 2 further ensures the stability of the stabilizing frame 12.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roof fracturing device for end-to-end mining stages, comprising a movable plate (1), characterized in that, An operation protection structure is installed at the upper end of the movable plate (1), and a movable support structure is installed at the lower end of the movable plate (1); The operational protection structure includes a scissor lift (2), a first hydraulic cylinder (3), a connecting sleeve (4), a conical operating head (5), six second hydraulic cylinders (6), and two protective plates (7); The scissor lift (2) is fixedly installed on the upper end of the moving plate (1), the first hydraulic cylinder (3) is fixedly installed at the center of the upper end of the scissor lift (2), the connecting sleeve (4) is installed on the telescopic end of the first hydraulic cylinder (3), the conical operating head (5) is embedded in the upper end of the connecting sleeve (4), the six second hydraulic cylinders (6) are respectively installed on both sides of the upper end of the scissor lift (2), and the two protective plates (7) are respectively installed on the telescopic ends of the six second hydraulic cylinders (6).

2. The roof fracturing device for the end-and-end mining stage according to claim 1, characterized in that, The movable support structure includes three movable brackets (8), three sets of movable wheels (9), several threaded sleeves (10), and several support screws (11); The three movable brackets (8) are respectively installed at the center of the lower end of the movable plate (1) and on both sides. The three sets of movable wheels (9) are respectively embedded in the three movable brackets (8). The several threaded sleeves (10) are respectively embedded in the side walls of the movable plate (1). The several support screws (11) are respectively movably embedded in the several threaded sleeves (10).

3. The roof fracturing device for the head and tail mining stages according to claim 1, characterized in that, Stabilizers (12) are installed on the outside of the first hydraulic cylinder (3) and the six second hydraulic cylinders (6).

4. The roof fracturing device for the head and tail mining stages according to claim 3, characterized in that, The lower two sides of the stabilizing frame (12) are respectively connected to the upper two sides of the scissor lift (2).

5. A roof fracturing device for the head and tail mining stages according to claim 3, characterized in that, The connection between the stabilizing frame (12) and the scissor lift (2) is provided with a connecting reinforcing rib (13).

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