Self-moving filling support for paste filling

Abstract

The invention discloses a self-moving filling support for paste filling, which relates to the technical field of coal mining and comprises a filling support body, the bottom of the filling support body is connected with a fixing frame, and a self-moving mechanism is arranged in the fixing frame. The self-moving mechanism comprises a first air cylinder, a sliding frame, a sliding clamping assembly, an abutting frame plate and a moving assembly. The top end of the cylinder I is connected with the fixed frame; the sliding frame is connected with the abutting frame plate through the sliding clamping assembly. The moving assembly comprises a second air cylinder, a steel wire rope and a second spring which are connected with the abutting frame plate and the sliding frame correspondingly. During working, the first air cylinder extends out to enable the abutting frame plate to abut against the ground and jack the support body off the ground; the second air cylinder retracts to pull the sliding frame through the steel wire rope to drive the support body to move forwards horizontally. The first air cylinder retracts to enable the support body to fall to the ground, and the second spring assists the abutting frame plate to reset. Autonomous stepping type movement of the filling support is achieved, the structure is compact, movement is stable and reliable, external traction equipment is not needed, and the support moving efficiency of the filling mining working face is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, specifically a self-moving filling support for paste filling. Background Technology

[0002] Paste backfilling mining is one of the important technologies for green coal mining, and its core equipment is the backfilling support. Existing backfilling supports need to be moved forward periodically during the working face advancement process. Currently, the movement of the supports mainly relies on two methods: one is towing with external traction equipment (such as winches), and the other is using a traditional hydraulic support pushing device.

[0003] However, existing technologies have the following shortcomings:

[0004] Reliance on external power: Using external equipment such as winches for traction requires laying special traction tracks and wire ropes, which is cumbersome to operate, occupies extra working space, and poses safety hazards such as wire rope breakage and unhooking.

[0005] Poor mobility: The pushing device of traditional hydraulic supports usually needs to be linked with equipment such as scraper conveyors, which is complex in structure. In environments with narrow filling working surfaces and undulating bottom plates, it is easy to encounter problems such as difficulty in "self-movement", jamming or deviation in direction.

[0006] Therefore, there is an urgent need for a self-moving filling stent for paste filling to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a self-moving filling stent for paste filling, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A self-moving filling stent for ointment filling includes a filling stent body and further includes:

[0010] A fixing frame is connected to the bottom of the filling support body. Two sets of fixing frames are provided and are arranged symmetrically.

[0011] A connecting groove is provided at the bottom of the filling bracket body and communicates with the inside of the fixing frame;

[0012] A self-moving mechanism, one end of which is connected to a fixed frame and the other end to the filling support body, is used to drive the filling support body to move; the self-moving mechanism includes:

[0013] Cylinder 1 is located inside the fixed frame, and its top end is connected to the fixed frame;

[0014] The sliding frame is connected to the bottom end of the cylinder and is slidably connected to the inner wall of the fixed frame;

[0015] A sliding snap-fit ​​component, one end of which is connected to the sliding frame;

[0016] An abutting frame plate is connected to the other end of a sliding snap-fit ​​assembly. The abutting frame plate is located in the connecting groove and movably abuts against it. A cavity is provided on the abutting frame plate.

[0017] The movable component is connected at one end to the abutment frame and at the other end to the sliding frame, and is used to move the sliding frame and the abutment frame.

[0018] As a further aspect of the present invention: the sliding snap-fit ​​assembly includes:

[0019] The card block connects to the inner wall of the sliding frame;

[0020] The T-shaped block is connected to the top of the abutment frame plate and slides into the locking block;

[0021] A roller, located inside and rotatably connected to the sliding frame, abuts against the top of the T-block.

[0022] As a further aspect of the present invention: the moving component includes:

[0023] Cylinder 2 is located inside the cavity, and one end is connected to the abutment frame plate;

[0024] The fixing components are provided in two sets, one set of which is connected to the other end of the cylinder and the other set of which is connected to the sliding frame;

[0025] The retaining ring connects to the retaining component;

[0026] The steel wire rope is connected to two sets of fixing rings at both ends;

[0027] Spring 2 has one end connected to the abutment frame plate and the other end connected to the sliding frame.

[0028] As a further aspect of the present invention: the fixing component includes:

[0029] The hook connects to cylinder two and the sliding frame;

[0030] The limiting arc is rotatably connected to the hook and abuts against the hook;

[0031] Spring 1 has one end connected to the limiting arc and the other end connected to the hook.

[0032] As a further aspect of the present invention, it also includes:

[0033] The limit wheel abuts against the wire rope and is connected to the abutment frame plate.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] Achieving fully autonomous stepping movement: By setting up a self-moving mechanism (cylinder 1, sliding frame, sliding snap-fit ​​assembly, abutment frame plate and moving assembly), the filling support body can independently complete the complete stepping action of "lifting-forward movement-landing-resetting" without relying on any external traction equipment, which significantly improves the autonomy and flexibility of the moving support.

[0036] Compact structure and highly adaptable: The self-moving mechanism is integrated into the fixed frame and connecting groove at the bottom of the support body, without occupying additional working surface space. The sliding snap-fit ​​component uses a snap-fit ​​block and a T-shaped block for sliding engagement, combined with rollers to reduce friction, achieving decoupling of rigid force transmission in the vertical direction and smooth movement in the horizontal direction. The structure is simple and occupies little height, making it particularly suitable for environments with limited working surface space for paste filling.

[0037] Easy to operate and simple to maintain: The fixing component adopts a combination structure of hooks, limit arcs, and springs, which enables quick attachment and removal of the wire rope. The wire rope can be replaced without special tools, greatly reducing the difficulty of on-site maintenance. The entire self-movement process can be completed automatically by the control system, reducing manual intervention.

[0038] Effectively avoids the "bottom-biting" phenomenon: The cylinder first lifts the entire support body to detach it from the ground before moving it horizontally. This fundamentally eliminates the "bottom-biting" problem caused by direct friction between the support base and the base plate in the traditional pushing method, protects the flatness of the base plate, and reduces the resistance of moving the support. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a self-moving filling support for paste filling according to an embodiment of the present invention.

[0040] Figure 2 This is a left sectional view of the self-moving mechanism in an embodiment of the present invention.

[0041] Figure 3 This is a front sectional view of the self-moving mechanism in an embodiment of the present invention.

[0042] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0043] Figure 5 This is a schematic diagram of the structure of the fixing component in an embodiment of the present invention.

[0044] Figure 6 This is a schematic diagram of the sliding frame in an embodiment of the present invention.

[0045] In the diagram: 1. Filling bracket body; 2. Fixing frame; 3. Connecting groove; 4. Cylinder 1; 5. Sliding frame; 6. Locking block; 7. T-block; 8. Abutting frame plate; 9. Cavity; 10. Cylinder 2; 11. Hook; 12. Limiting arc; 13. Spring 1; 14. Fixing ring; 15. Steel wire rope; 16. Limiting wheel; 17. Roller; 18. Spring 2. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the embodiments of this invention, please refer to Figures 1 to 6 A self-moving filling stent for ointment filling includes a filling stent body 1, and further includes:

[0048] The fixing frame 2 is connected to the bottom of the filling support body 1. There are two sets of fixing frames 2, which are symmetrically arranged.

[0049] The connecting groove 3 is located at the bottom of the filling bracket body 1 and communicates with the inside of the fixing frame 2;

[0050] The self-moving mechanism is connected at one end to the fixed frame 2 and at the other end to the filling support body 1, and is used to drive the filling support body 1 to move; the self-moving mechanism includes:

[0051] Cylinder 4 is located inside the fixed frame 2, and its top end is connected to the fixed frame 2;

[0052] The sliding frame 5 is connected to the bottom end of the cylinder 4 and is slidably connected to the inner wall of the fixed frame 2;

[0053] A sliding snap-fit ​​component, one end of which is connected to the sliding frame 5;

[0054] The abutting frame plate 8 is connected to the other end of the sliding snap-fit ​​assembly. The abutting frame plate 8 is located in the connecting groove 3 and moves against it. A cavity 9 is provided on the abutting frame plate 8.

[0055] The movable component is connected at one end to the abutment frame 8 and at the other end to the sliding frame 5, and is used to drive the sliding frame 5 and the abutment frame 8 to move.

[0056] As one embodiment of the present invention, please refer to Figure 2 and Figure 6 The sliding snap-fit ​​assembly includes:

[0057] Block 6 is connected to the inner wall of sliding frame 5;

[0058] T-shaped block 7 is connected to the top of the abutting frame plate 8 and is slidably engaged with the locking block 6;

[0059] Roller 17 is located inside sliding frame 5 and is rotatably connected to it. Roller 17 abuts against the top of T-block 7.

[0060] The locking block 6 and the T-shaped block 7 are slidably engaged, allowing the abutting frame plate 8 to slide relative to the sliding frame 5 in the horizontal direction, but mutually restricted in the vertical direction. The roller 17 reduces the friction during sliding, making the sliding of the T-shaped block 7 smoother.

[0061] As one embodiment of the present invention, please refer to Figures 3 to 5 The moving component includes:

[0062] Cylinder 2 10 is located inside cavity 9, and one end is connected to the abutment frame plate 8;

[0063] The fixing components are provided in two sets. One set of fixing components is connected to the other end of the cylinder 10, and the other set of fixing components is connected to the sliding frame 5.

[0064] The retaining ring 14 is connected to the retaining component;

[0065] The steel wire rope 15 is connected to two sets of fixing rings 14 at both ends;

[0066] Spring 218 has one end connected to the abutment frame plate 8 and the other end connected to the sliding frame 5.

[0067] As one embodiment of the present invention, please refer to Figures 3 to 5 The fixing component includes:

[0068] Hook 11 is connected to cylinder 2 10 and sliding frame 5;

[0069] The limiting arc 12 is rotatably connected to the hook 11 and abuts against the hook 11;

[0070] Spring 13 has one end connected to the limiting arc 12 and the other end connected to the hook 11.

[0071] The hook 11, the limiting arc 12 and the spring 13 form a connection structure that allows for quick attachment and detachment of the wire rope 15, facilitating maintenance and replacement. The spring 13 and the limiting arc 12 prevent the wire rope 15 from accidentally falling off when not under stress.

[0072] As one embodiment of the present invention, please refer to Figure 3 and Figure 4 It also includes:

[0073] The limiting wheel 16 abuts against the wire rope 15 and is connected to the abutting frame plate 8.

[0074] The limit wheel 16 is used to change the transmission direction of the wire rope 15 and reduce friction.

[0075] The working principle of this invention is as follows: In the initial state, the filling support body 1 is supported on the ground or the bottom plate of the tunnel by its bottom. The filling support body 1 supports the tunnel. At this time, the cylinder 4 is in the retracted state, and the bottom of the abutting frame plate 8 is separated from or slightly in contact with the ground, and does not bear the main supporting force.

[0076] When the filling support body 1 needs to be moved, the filling support body 1 retracts as a whole. The control system (not shown in the figure) commands cylinder 4 to extend (piston rod extends). Cylinder 4 drives the sliding frame 5 to move downward relative to the fixed frame 2. Since the sliding frame 5 is engaged with the abutting frame plate 8 through the locking block 6 and the T-shaped block 7, the abutting frame plate 8 is driven to move downward until the bottom of the abutting frame plate 8 is pressed against the ground. At this time, the abutting frame plate 8 can no longer descend, but the cylinder 4 continues to extend, which will generate a huge reaction force, "lifting" the bottom of the filling support body 1 upward, so that the support point of the filling support body 1 that was originally in contact with the ground is lifted off the ground. The weight of the entire filling support body 1 is transferred to the ground through the fixed frame 2, cylinder 4, sliding frame 5, T-shaped block 7 and abutting frame plate 8 (equivalent to the abutting frame plate 8 becoming the new support point, "lifting" the support body).

[0077] After the filling support body 1 is lifted, the control system commands cylinder 2 10 to move. The piston rod of cylinder 2 10 retracts. When cylinder 2 10 retracts, it pulls the fixed ring 14 connected to it through the fixed component. The fixed ring 14 transmits the tension to another set of fixed rings 14 connected to the sliding frame 5 through the steel wire rope 15. Since the abutment plate 8 is the new support point at this time, a huge frictional force is generated between the abutment plate 8 and the ground. Therefore, the abutment plate 8 is stationary relative to the ground. According to the principle of action and reaction, the tension of the steel wire rope 15 will react on the sliding frame 5, causing the sliding frame 5 to move forward relative to the abutment plate 8. The spring 2 18 undergoes elastic deformation. Since the sliding frame 5 and the filling support body 1 are indirectly connected through the fixed frame 2, the final effect is that the filling support body 1 is "dragged" forward as a whole, realizing the self-movement of the filling support body 1.

[0078] Once the filling support body 1 has moved into position (e.g., moved one step), the control system commands cylinder 4 to retract. At this point, the filling support body 1 falls to contact with the ground, and the contact frame 8 detaches from the ground, no longer bearing the enormous lifting pressure. At this time, cylinder 10 reverses its action (the piston rod of cylinder 10 extends). Due to the contact between the filling support body 1 and the ground, a huge frictional force is generated, and the filling support body 1 and the sliding frame 5 remain stationary relative to the ground. At this time, the contact frame 8 moves forward under the reaction force of spring 18, returning to the initial standby position, ready for the next cycle.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0080] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-moving filling support for paste filling, comprising a filling support body, characterized in that, Also includes: A fixing frame is connected to the bottom of the filling support body. Two sets of fixing frames are provided and are arranged symmetrically. A connecting groove is provided at the bottom of the filling bracket body and communicates with the inside of the fixing frame; A self-moving mechanism, one end of which is connected to a fixed frame and the other end to the filling support body, is used to drive the filling support body to move; the self-moving mechanism includes: Cylinder 1 is located inside the fixed frame, and its top end is connected to the fixed frame; The sliding frame is connected to the bottom end of the cylinder and is slidably connected to the inner wall of the fixed frame; A sliding snap-fit ​​component, one end of which is connected to the sliding frame; An abutting frame plate is connected to the other end of a sliding snap-fit ​​assembly. The abutting frame plate is located in the connecting groove and movably abuts against it. A cavity is provided on the abutting frame plate. The movable component is connected at one end to the abutment frame and at the other end to the sliding frame, and is used to move the sliding frame and the abutment frame.

2. The self-moving filling support for paste filling according to claim 1, characterized in that, The sliding snap-fit ​​assembly includes: The card block connects to the inner wall of the sliding frame; The T-shaped block is connected to the top of the abutment frame plate and slides into the locking block; A roller, located inside and rotatably connected to the sliding frame, abuts against the top of the T-block.

3. The self-moving filling support for paste filling according to claim 1, characterized in that, The moving component includes: Cylinder 2 is located inside the cavity, and one end is connected to the abutment frame plate; The fixing components are provided in two sets, one set of which is connected to the other end of the cylinder and the other set of which is connected to the sliding frame; The retaining ring connects to the retaining component; The steel wire rope is connected to two sets of fixing rings at both ends; Spring 2 has one end connected to the abutment frame plate and the other end connected to the sliding frame.

4. The self-moving filling support for paste filling according to claim 3, characterized in that, The fixing component includes: The hook connects to cylinder two and the sliding frame; The limiting arc is rotatably connected to the hook and abuts against the hook; Spring 1 has one end connected to the limiting arc and the other end connected to the hook.

5. A self-moving filling support for paste filling according to claim 3, characterized in that, Also includes: The limit wheel abuts against the wire rope and is connected to the abutment frame plate.

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