Hydraulic support stepping self-moving device

Abstract

The hydraulic support stepping self-moving device comprises a left base, a right base, a longitudinal push-pull mechanism and a transverse bottom adjusting mechanism, the left base and the right base are arranged in parallel, guide plates are arranged on the adjacent side faces, the two ends of the left base and the right base are respectively provided with a connecting frame oil cylinder installation base, and a first connecting frame oil cylinder and a second connecting frame oil cylinder are arranged between the left base and the right base. The left base and the right base are provided with installation bases and connected with longitudinal pushing oil cylinders. The device further comprises a bottom adjusting plug connecting seat, a bottom adjusting oil cylinder connecting seat, a bottom adjusting plug and a bottom adjusting oil cylinder. The hydraulic support has the advantages that the left base and the right base move forwards alternately by accurately controlling actions of the oil cylinders, adaptability and stability of the support under complex geological conditions are improved, consumption of manpower and material resources is reduced, and safety and efficiency of mine operation are improved.

Description

Technical Field

[0001] The utility model relates to the field of underground coal seam mining safety facilities, in particular to a hydraulic support stepping self-moving device. Background Art

[0002] Comprehensive mechanized coal mining is a sign of technological progress in coal mines and an important means for coal mines to increase production, improve labor productivity, and increase economic benefits. As key equipment for comprehensive mechanized coal mining in coal mines, hydraulic supports play a vital role in ensuring safe production in coal mines and improving coal mining efficiency. However, existing hydraulic supports still face many challenges in actual applications, such as large size and weight, difficulty in transportation, installation, and withdrawal, and are not suitable for small and medium-sized coal mines and scenarios where the length of the coal mining working face varies greatly. In addition, the stability of existing supports is poor, and they are prone to overturning, sliding, and tilting when moving the supports. The adjustment efficiency is low, and they are not fully suitable for working faces with coal seam inclinations greater than 15 degrees and working faces with unstable roofs and floors. These problems seriously restrict the application of hydraulic supports in complex geological conditions.

[0003] Most of the currently used end supports for working faces, advance supports for tunnels, and goaf support, etc., are front and rear supports. By using a push cylinder between the front and rear supports, the rear support pushes the front support, and the front support pulls the rear support, thus achieving step-by-step forward movement of the support groups. This form not only requires a large amount of space, which is not conducive to the lightweight design of the support, but also lacks the function of adjusting the base posture, support position, and forward direction during the forward movement of the support. There is a risk of interaction with other equipment or coal walls underground, making it impossible to move the support, which will consume a lot of manpower and material resources of the mine. Therefore, it is necessary to use some special methods and special devices to optimize the step-by-step self-movement function of this type of special support. Utility Model Content

[0004] Currently used supports, such as those at the end of working faces, ahead of tunnels, and in goafs, mostly employ a front-to-back frame structure, relying on hydraulic cylinders to achieve forward movement. However, this approach requires considerable space, hindering lightweight design. Furthermore, during forward movement, the base, support position, or direction cannot be adjusted, potentially interfering with underground equipment or the coal wall, making movement difficult and increasing labor and material costs. Therefore, specialized methods or devices are needed to optimize the self-movement performance of these supports.

[0005] The utility model solves the technical problem by adopting a technical solution: a hydraulic support stepping self-moving device, characterized by comprising a left base, a right base, a longitudinal push-pull mechanism and a transverse bottom adjustment mechanism;

[0006] The left base and the right base are arranged in parallel, and adjacent sides of the left base and the right base are provided with guide plates, and the guide plates can be arranged on the side plates of the left base or the right base located at the adjacent side directions;

[0007] The left base is provided with a left connecting cylinder mounting seat 1 at one end, and a left connecting cylinder mounting seat 2 is provided at the other end of the left base; the right base is provided with a right connecting cylinder mounting seat 1 at one end, and the right base is provided with a right connecting cylinder mounting seat 2 at the other end. The left connecting cylinder mounting seat 1 and the right connecting cylinder mounting seat 1 are arranged opposite to each other, and a connecting cylinder 1 is provided between the left connecting cylinder mounting seat 1 and the right connecting cylinder mounting seat 1, and both ends of the connecting cylinder 1 can pivotally move around the extension line of the axial holes of the left connecting cylinder mounting seat 1 and the right connecting cylinder mounting seat 1, and the left connecting cylinder mounting seat 2 and the right connecting cylinder mounting seat 2 are arranged opposite to each other, and a connecting cylinder 2 is provided between the left connecting cylinder mounting seat 2 and the right connecting cylinder mounting seat 2;

[0008] The left base is provided with a left mounting seat 1 and a left mounting seat 2 in sequence along the extending direction of the guide plate, and the right base is provided with a right mounting seat 1 and a right mounting seat 2 in sequence along the extending direction of the guide plate, wherein the left mounting seat 1 is arranged opposite to the right mounting seat 1, and the left mounting seat 2 is arranged opposite to the right mounting seat 2;

[0009] The hydraulic support stepping self-moving device further includes a longitudinal push oil cylinder, the two ends of which can be pivotally mounted on the left mounting seat 1 and the right mounting seat 2, or the two ends of which can be pivotally mounted on the left mounting seat 2 and the right mounting seat 1;

[0010] One end of the left base is equipped with a bottom adjustment plug connecting seat 1, and the other end of the left base is equipped with a bottom adjustment plug mounting seat 2; one end of the right base is equipped with a bottom adjustment oil cylinder connecting seat 1, and the other end of the right base is equipped with a bottom adjustment oil cylinder mounting seat 2; the hydraulic support stepping self-moving device also includes a bottom adjustment plug 1 and a bottom adjustment plug 2, as well as a bottom adjustment oil cylinder 1 and a bottom adjustment oil cylinder 2, one end of the bottom adjustment plug 1 is installed on the bottom adjustment plug connecting seat 1, one end of the bottom adjustment plug 2 is installed on the bottom adjustment plug connecting seat 2, one end of the bottom adjustment oil cylinder 1 is installed on the bottom adjustment oil cylinder connecting seat 1, and the bottom adjustment oil cylinder 2 is installed on the bottom adjustment oil cylinder mounting seat 2, the other end of the bottom adjustment plug 1 is in contact with the other end of the bottom adjustment oil cylinder 1, and the other end of the bottom adjustment plug 2 is in contact with the other end of the bottom adjustment oil cylinder 2.

[0011] Furthermore, mounting holes are provided on the left mounting seat 1, the left mounting seat 2, the right mounting seat 1, and the right mounting seat 2; the hydraulic support stepping self-moving device also includes a connector 1 and a connector 2, and the connector 1 and the connector 2 are mounted on the two ends of the longitudinal push cylinder through a connecting pin 1 in a pivotable manner.

[0012] Furthermore, sleeves are vertically pivotally provided in the left connecting frame oil cylinder mounting seat 1, the left connecting frame oil cylinder mounting seat 2, the right connecting frame oil cylinder mounting seat 1 and the right connecting frame oil cylinder mounting seat 2, and the two ends of the connecting frame oil cylinder 1 and the connecting frame oil cylinder 2 are connected to the corresponding sleeves through the connecting pin 2.

[0013] Furthermore, the sleeve is connected to the left mounting seat 1, the left mounting seat 2, the right mounting seat 1, and the right mounting seat 2 in a limiting manner through a fixing pin.

[0014] Furthermore, the hydraulic support self-moving device further includes a control system for controlling the operating components of the hydraulic support self-moving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a structural diagram of a hydraulic support stepping self-moving device of the utility model;

[0017] Figure 2 This is a schematic diagram of the horizontal bottom adjustment mechanism of a hydraulic support stepping self-moving device of the utility model;

[0018] Figure 3 This is an exploded view of the horizontal bottom adjustment mechanism of a hydraulic support stepping self-moving device of the utility model;

[0019] Figure 4 This is a schematic diagram of a hydraulic support self-moving device in a step-forward-moving state during use of the utility model;

[0020] Figure 5 This is a schematic diagram of adjusting the base position during use of a hydraulic support stepping self-moving device of the utility model;

[0021] Figure 6 This is a schematic diagram of adjusting the forward movement direction of a base during use of a hydraulic support stepping self-moving device of the utility model.

[0022] Figure markings: 1. Left base; 2. Right base; 3. Longitudinal push-pull mechanism; 4. Horizontal bottom adjustment mechanism; 5. Left connecting frame cylinder mounting seat 1; 6. Left connecting frame cylinder mounting seat 2; 7. Right connecting frame cylinder mounting seat 1; 8. Right connecting frame cylinder mounting seat 2; 9. Guide plate; 10. Connecting frame cylinder 1; 11. Connecting frame cylinder 2; 12. Left mounting seat 1; 13. Left mounting seat 2; 14. Right mounting seat 1; 15. Right mounting seat 2; 16. Longitudinal pushing cylinder; 17. Bottom adjustment plug connecting seat 1; 18. Bottom adjustment cylinder connecting seat 1; 19. Bottom adjustment plug 1; 20. Bottom adjustment cylinder 1; 21. Connector 1; 22. Connector 2; 23. Connecting pin 1; 24. Connecting pin 2; 25. Sleeve; 26. Fixing pin. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the present invention, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] like Figures 1 to 6 The hydraulic support stepping self-moving device shown is characterized by comprising a left base 1, a right base 2, a longitudinal push-pull mechanism 3 and a transverse bottom adjustment mechanism 4;

[0026] The left base 1 and the right base 2 are arranged in parallel, and a guide plate 9 is provided on the adjacent sides of the left base 1 and the right base 2. The guide plate can be provided on the side plate of the left base 1 or the right base 2 located on the adjacent side direction;

[0027] The left base 1 is provided with a left connecting frame oil cylinder mounting seat 15 at one end, and a left connecting frame oil cylinder mounting seat 26 at the other end of the left base 1; the right base 2 is provided with a right connecting frame oil cylinder mounting seat 17 at one end, and a right connecting frame oil cylinder mounting seat 28 at the other end of the right base 2; the left connecting frame oil cylinder mounting seat 15 and the right connecting frame oil cylinder mounting seat 17 are arranged opposite to each other, and a connecting frame oil cylinder 10 is provided between the left connecting frame oil cylinder mounting seat 15 and the right connecting frame oil cylinder mounting seat 17. The ends of the oil cylinder 10 can pivotally move around the extension line of the axial holes of the left connecting oil cylinder mounting seat 1 5 and the right connecting oil cylinder mounting seat 1 7. The left connecting oil cylinder mounting seat 2 6 and the right connecting oil cylinder mounting seat 2 8 are arranged opposite each other. A connecting oil cylinder 2 11 is arranged between the left connecting oil cylinder mounting seat 2 6 and the right connecting oil cylinder mounting seat 2 8. The ends of the connecting oil cylinder 2 11 can pivotally move around the extension line of the axial holes of the left connecting oil cylinder mounting seat 2 6 and the right connecting oil cylinder mounting seat 2 8.

[0028] The left base 1 is provided with a left mounting seat 12 and a left mounting seat 2 13 in sequence along the extending direction of the guide plate 9. The right base 2 is provided with a right mounting seat 14 and a right mounting seat 2 15 in sequence along the extending direction of the guide plate 9. The left mounting seat 12 is arranged opposite to the right mounting seat 14, and the left mounting seat 2 13 is arranged opposite to the right mounting seat 2 15.

[0029] The hydraulic support stepping self-moving device further includes a longitudinal push cylinder 16, the two ends of which are pivotally mounted to the left mounting seat 12 and the right mounting seat 2 15, or the two ends of which are pivotally mounted to the left mounting seat 2 13 and the right mounting seat 1 14;

[0030] One end of the left base 1 is installed with a bottom adjustment plug connecting seat 17, and the other end 8 of the left base 1 is installed with a bottom adjustment plug mounting seat 2; one end of the right base 2 is installed with a bottom adjustment cylinder connecting seat 18, and the other end of the right base 2 is installed with a bottom adjustment cylinder mounting seat 2; the hydraulic support stepping self-moving device also includes a bottom adjustment plug 19 and a bottom adjustment plug 2, as well as a bottom adjustment cylinder 1 20 and a bottom adjustment cylinder 2, one end of the bottom adjustment plug 19 is installed on the bottom adjustment plug connecting seat 17, one end of the bottom adjustment plug 2 is installed on the bottom adjustment plug connecting seat 2, one end of the bottom adjustment cylinder 1 20 is installed on the bottom adjustment cylinder connecting seat 18, and the bottom adjustment cylinder 2 is installed on the bottom adjustment cylinder mounting seat 2, the other end of the bottom adjustment plug 19 is supported and abutted with the other end of the bottom adjustment cylinder 1 20, and the other end of the bottom adjustment plug 2 is supported and abutted with the other end of the bottom adjustment cylinder 2.

[0031] In another embodiment, the left mounting seat 12, the left mounting seat 2 13, the right mounting seat 14, and the right mounting seat 2 15 are provided with mounting holes;

[0032] The hydraulic support self-propelling device further includes a first connector 21 and a second connector 22, which are pivotally mounted to the ends of the longitudinal displacement cylinder 16 via a first connecting pin 23. This pivoting design allows the connectors to rotate with the movement of the longitudinal displacement cylinder, thereby increasing the flexibility of the device.

[0033] In another embodiment, sleeves 25 are vertically pivotally mounted on the left connecting cylinder mounting base 1 5, left connecting cylinder mounting base 2 6, right connecting cylinder mounting base 1 7, and right connecting cylinder mounting base 2 8. Both ends of the connecting cylinders 10 and 11 are connected to the corresponding sleeves 25 via connecting pins 24. This design allows the connecting cylinders to rotate vertically, increasing the adaptability of the overall structure of the device.

[0034] The sleeve 25 is connected to the left mounting seat 12, the left mounting seat 2 13, the right mounting seat 14, and the right mounting seat 2 15 through a fixing pin 26.

[0035] The hydraulic support self-moving device further comprises a control system for controlling the operating components of the hydraulic support self-moving device.

[0036] This device aims to address stability and flexibility issues during forward movement of supports in complex environments such as mines. Through its sophisticated design and control system, it ensures consistent posture adjustment and position changes during forward movement, improving operational efficiency and safety. First, the control system activates the longitudinal displacement cylinder 16, extending its piston rod and pushing the right base 2 forward along the guide plate 9. The guide plate design effectively reduces resistance during movement, ensuring that the right base 2 can reach its intended position smoothly and unimpeded. At this point, the control system stops extending the piston rod of the longitudinal displacement cylinder 16 to prepare for the next operation. Next, the control system activates the longitudinal displacement cylinder 16 again, retracting its piston rod, thereby pulling the left base 1 forward along the guide plate 9, completing the forward movement. This series of operations achieves the alternating forward movement of the left and right bases 1 and 2, known as the "stepping" motion, which is one of the core functions of the device. To further optimize the spacing between the left and right bases 1 and 2, the control system also activates the piston rods of connecting cylinders 10 and 11, retracting them and thereby reducing the distance between them. The connecting cylinder 10 and the connecting cylinder 2 11 are connected to the sleeve 25 via the connecting pin 24, and the sleeve 25 is connected to the left mounting seat 12, the left mounting seat 2 13, the right mounting seat 1 14, and the right mounting seat 2 15 via the fixing pin 26, ensuring the stability and reliability of the connecting cylinder during operation. In addition, in order to adjust the direction of the base forward movement, the control system will also activate the bottom adjustment cylinder 1 20 and the bottom adjustment cylinder 2, and adjust the posture and spacing of the left base 1 and the right base 2 by adjusting the distance their piston rods extend or retract. The bottom adjustment cylinder 1 20 and the bottom adjustment cylinder 2 are respectively installed on the bottom adjustment cylinder connecting seat 1 18 and the bottom adjustment cylinder mounting seat 2, and are abutted against the bottom adjustment plug 1 19 and the bottom adjustment plug 2. This design allows the direction of the base forward movement to be accurately adjusted by controlling the telescopic action of the bottom adjustment cylinder. For example, if you want to move the base to the left front, you can increase the extension distance of the front bottom adjustment cylinder and reduce the extension distance of the rear bottom adjustment cylinder, so that the base as a whole tilts to the left front and moves forward.

[0037] The benefits of the present invention are as follows: the design of the front end of the base and the forward guide plate effectively reduces the resistance during movement, thereby improving the moving efficiency and stability of the bracket; the design of the front and rear connection positions of the push cylinder forms an upward component force, which helps to smoothly move the bracket and reduce the jamming phenomenon; the design of the horizontal bottom adjustment mechanism can flexibly adjust the posture and spacing of the left and right bases, thereby improving the adaptability and stability of the bracket in complex mine environments; the various components connected by standardized interfaces are easy to install and maintain, thereby reducing maintenance costs and extending service life.

[0038] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydraulic support self-moving device, characterized by: It comprises a left base (1), a right base (2), a longitudinal push-pull mechanism (3) and a transverse bottom adjustment mechanism (4); The left base (1) and the right base (2) are arranged in parallel, and a guide plate (9) is provided on adjacent sides of the left base (1) and the right base (2), and the guide plate can be provided on a side plate of the left base (1) or the right base (2) located at the adjacent side. The left base (1) is provided with a left connecting cylinder mounting seat 1 (5) at one end, and a left connecting cylinder mounting seat 2 (6) is provided at the other end of the left base (1); the right base (2) is provided with a right connecting cylinder mounting seat 1 (7) at one end, and a right connecting cylinder mounting seat 2 (8) is provided at the other end of the right base (2); the left connecting cylinder mounting seat 1 (5) and the right connecting cylinder mounting seat 1 (7) are arranged opposite to each other, and a connecting cylinder 1 (10) is provided between the left connecting cylinder mounting seat 1 (5) and the right connecting cylinder mounting seat 1 (7); both ends of the connecting cylinder 1 (10) can pivotally move around the extension line of the axial hole of the left connecting cylinder mounting seat 1 (5) and the right connecting cylinder mounting seat 1 (7); the left connecting cylinder mounting seat 2 (6) and the right connecting cylinder mounting seat 2 (8) are arranged opposite to each other, and the left connecting cylinder mounting seat 2 (6) and the right connecting cylinder mounting seat 2 (8) are arranged opposite to each other. A connecting cylinder 2 (11) is provided between the two ends of which can pivotally move around the axis hole extension line of the left connecting cylinder mounting seat 2 (6) and the right connecting cylinder mounting seat 2 (8); The left base (1) is provided with a left mounting seat 1 (12) and a left mounting seat 2 (13) in sequence along the extending direction of the guide plate (9); the right base (2) is provided with a right mounting seat 1 (14) and a right mounting seat 2 (15) in sequence along the extending direction of the guide plate (9); the left mounting seat 1 (12) and the right mounting seat 1 (14) are arranged opposite to each other, and the left mounting seat 2 (13) and the right mounting seat 2 (15) are arranged opposite to each other; The hydraulic support stepping self-moving device also includes a longitudinal push oil cylinder (16), and the two ends of the longitudinal push oil cylinder (16) can be pivotally mounted on the left mounting seat 1 (12) and the right mounting seat 2 (15), or the two ends of the longitudinal push oil cylinder (16) can be pivotally mounted on the left mounting seat 2 (13) and the right mounting seat 1 (14); The left base (1) is provided with a bottom adjustment plug connection seat 1 (17) at one end, and a bottom adjustment plug mounting seat 2 is provided at the other end 8 of the left base (1); the right base (2) is provided with a bottom adjustment oil cylinder connection seat 1 (18) at one end, and a bottom adjustment oil cylinder mounting seat 2 is provided at the other end of the right base (2); the hydraulic support stepping self-moving device further comprises a bottom adjustment plug 1 (19) and a bottom adjustment plug 2, as well as a bottom adjustment oil cylinder 1 (20) and a bottom adjustment oil cylinder 2, the bottom adjustment plug 1 ( One end of the bottom adjusting plug 1 (19) is mounted on the bottom adjusting plug connection seat 1 (17), one end of the bottom adjusting plug 2 is mounted on the bottom adjusting plug connection seat 2, one end of the bottom adjusting oil cylinder 1 (20) is mounted on the bottom adjusting oil cylinder connection seat 1 (18), and the bottom adjusting oil cylinder 2 is mounted on the bottom adjusting oil cylinder mounting seat 2, the other end of the bottom adjusting plug 1 (19) is supported and abutted against the other end of the bottom adjusting oil cylinder 1 (20), and the other end of the bottom adjusting plug 2 is supported and abutted against the other end of the bottom adjusting oil cylinder 2.

2. The hydraulic support self-moving device according to claim 1, characterized in that: The left mounting seat 1 (12), the left mounting seat 2 (13), the right mounting seat 1 (14), and the right mounting seat 2 (15) are provided with mounting holes; The hydraulic support stepping self-moving device also includes a connector 1 (21) and a connector 2 (22), and the connector 1 (21) and the connector 2 (22) are installed at the two ends of the longitudinal push cylinder (16) in a pivotable manner through a connecting pin 1 (23).

3. The hydraulic support self-moving device according to claim 1, characterized in that: The left connecting cylinder mounting seat 1 (5), the left connecting cylinder mounting seat 2 (6), the right connecting cylinder mounting seat 1 (7) and the right connecting cylinder mounting seat 2 (8) are vertically pivotally provided with sleeves (25), and the two ends of the connecting cylinder 1 (10) and the connecting cylinder 2 (11) are connected to the corresponding sleeves (25) through the connecting pin 2 (24).

4. The hydraulic support self-moving device according to claim 3, characterized in that: The sleeve (25) is position-limitingly connected to the left mounting seat 1 (12), the left mounting seat 2 (13), the right mounting seat 1 (14), and the right mounting seat 2 (15) via a fixing pin (26).

5. A hydraulic support self-moving device according to any one of claims 1 to 4, characterized in that: The hydraulic support self-moving device further comprises a control system for controlling the operating components of the hydraulic support self-moving device.

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