A kind of folding hydraulic support device suitable for full section of roadway

Abstract

The utility model provides a kind of folding hydraulic support device suitable for roadway full section, including telescopic roof beam, detachable bottom plate and a pair of folding outrigger;The telescopic roof beam is used to support roadway roof;The folding outrigger top is hingedly connected in the lower end of the telescopic roof beam, and the folding outrigger bottom is hingedly connected on the detachable bottom plate;Between the folding outrigger and the telescopic roof beam, there is an inclined support oil cylinder, and between the folding outrigger and the detachable bottom plate, there is a side adjusting oil cylinder, and the inclined support oil cylinder and the side adjusting oil cylinder are used to drive the folding outrigger to rotate around hinge point, so that the folding outrigger is folded or vertically unfolded;The detachable bottom plate is used to protect the roadway bottom.This folding hydraulic support device suitable for roadway full section increases the support range, improves the support capacity, and also facilitates the removal of frame.

Description

Technical Field

[0001] This utility model relates to the field of roadway support equipment, specifically, to a folding hydraulic support device applicable to the entire cross-section of a roadway. Background Technology

[0002] Maintaining unobstructed roadways and controlling surrounding rock deformation are of great significance to coal mine production. Currently, most coal mine roadways primarily use active support materials such as bolts, cables, and metal mesh, while hydraulic supports provide passive support. On the one hand, conventional hydraulic supports repeatedly support the roadway roof, damaging the original bolt and cable support and causing roof breakage. On the other hand, the large open area under hydraulic supports allows for the potential fall of loose coal and rock debris, posing a threat to personnel safety. Furthermore, conventional hydraulic supports cannot prevent floor heave.

[0003] Patent application CN119593791A discloses a full-section non-reciprocating support structure and its support method for a return air roadway. It includes a fixed support, a support frame, and a robotic arm support. The fixed support is located at the beginning of the roadway and is equipped with a winding component and a robotic arm. The support frame includes a top beam, a column, and a base. One end of the base has a telescopic column that can reciprocate along the direction of the base's movement. A slide rail is detachably connected to the top beam, and a sliding element is slidably connected to the slide rail. One end of the sliding element is connected to the traction rope of the winding component. The base is detachably connected to the robotic arm. The robotic arm support is located at the opposite end and is detachably connected to the support frame. The slide rail and sliding element on the support frame allow the sliding element to raise the height of the support frame. The fixed support pulls the sliding element, causing the support frame to move. This solves the problem of the support frame being unable to move forward due to boulders or other debris rising from the roadway floor, thus affecting normal production. However, the publicly disclosed structure of the full-section non-reciprocating support structure of the return air roadway mainly relies on the movement of slide rails under the roof beam. The slide rails need to be connected to each other as a whole. Because the slide rails are fixed under the roof beam, it is difficult to keep the left and right positions of the roof beams of adjacent supports uniform, so it is difficult to connect adjacent slide rails underground. In addition, the support is prone to sinking into the floor slab, thus making the support unable to move. Utility Model Content

[0004] In order to increase the support range, improve the support capacity, and facilitate the relocation of the support, the technical solution adopted by this utility model is: a folding hydraulic support device applicable to the entire cross section of the roadway, including a telescopic top beam, a detachable bottom plate and a pair of folding outriggers;

[0005] The telescopic top beam is used to support the roof of the tunnel;

[0006] The top of the folding outrigger is movably hinged to the lower end of the telescopic top beam, and the bottom of the folding outrigger is movably hinged to the detachable base plate.

[0007] An inclined bracing cylinder is obliquely arranged between the folding outrigger and the telescopic top beam, and a side adjustment cylinder is obliquely arranged between the folding outrigger and the detachable base plate. The inclined bracing cylinder and the side adjustment cylinder are used to drive the folding outrigger to rotate around the hinge point so that the folding outrigger can be folded in half or unfolded vertically.

[0008] The detachable base plate is used to protect the bottom of the tunnel.

[0009] Based on the above, the folding support leg includes an upper support leg and a lower support leg. The lower end of the upper support leg is hinged to the top end of the lower support leg, the top end of the upper support leg is hinged to the telescopic top beam, and the lower end of the lower support leg is hinged to the detachable base plate.

[0010] Based on the above, one end of the inclined support cylinder is movably connected to the upper support leg, and the other end of the inclined support cylinder is movably connected to the telescopic top beam.

[0011] Beneficial effects: The upper outrigger can be folded 90° by the inclined support cylinder, and the lower outrigger can be folded 90° by the side adjustment cylinder.

[0012] Based on the above, the telescopic top beam includes a telescopic beam, a right top beam, a left top beam, a telescopic hydraulic cylinder, and a side-push hydraulic cylinder. The right top beam is slidably engaged with the left top beam through the telescopic hydraulic cylinder, and the telescopic beam is slidably engaged with the right top beam through the side-push hydraulic cylinder.

[0013] Beneficial effects: By designing the telescopic top beam as a telescopic beam, right top beam, left top beam, telescopic cylinder, and side push cylinder, the top beam can have a large telescopic range and support range. At the same time, it is easy to retract when moving the frame, which facilitates transportation and movement in the roadway.

[0014] Based on the above, the upper support leg is provided with a limiting cylinder, and the lower support leg is provided with a sleeve for the limiting cylinder to be inserted. The limiting cylinder and the sleeve are used to limit the folding support leg when it is in the vertically unfolded state, so as to keep the folding support leg in the vertically unfolded posture.

[0015] Beneficial effects: When the support device is subjected to lateral force, although the diagonal bracing cylinder and the side adjustment cylinder will provide a certain lateral component force to the device, the force is relatively small. By setting a limit cylinder at the upper outrigger and a sleeve in the lower outrigger, after the upper and lower outriggers are adjusted, the piston rod of the limit cylinder of the upper outrigger extends into the sleeve in the lower outrigger, thereby playing a limiting role, making the upper and lower outriggers form a whole, and thus playing a supporting role.

[0016] Based on the above, limit blocks are respectively provided at the lower hinge of the upper leg and the upper hinge of the lower leg. The limit blocks are used to limit the folding leg when it is in the folded state, so as to keep the folding leg in a horizontal folded posture.

[0017] Beneficial effects: When folding the upper and lower outriggers, the stroke of the inclined support cylinder and the side adjustment cylinder is difficult to control, which may cause the angle between the upper outrigger and the telescopic top beam, and the lower outrigger and the detachable base plate to be greater than 90 degrees. Therefore, limit blocks are set at the upper and lower outriggers. When the upper and lower outriggers rotate to 90 degrees, the upper and lower outriggers contact each other and thus play a limiting role.

[0018] Based on the above, the detachable base plate includes a left base plate, a middle base plate, and a right base plate. One end of the middle base plate is detachably connected to the left base plate, and the other end of the middle base plate is detachably connected to the right base plate. The other ends of the left base plate and the other ends of the right base plate are respectively hinged to the lower support leg.

[0019] Based on the above, the telescopic top beam is provided with a top beam hole, which is used for the drill bit of the anchor cable drilling rig to pass through.

[0020] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model provides a folding hydraulic support device applicable to the entire cross section of a roadway. By setting a flat, detachable base plate at the bottom of the folding support legs, the detachable base plate can cover and support the bottom of the roadway, effectively preventing the roadway from bulging and the hydraulic support legs from sinking.

[0021] Furthermore, by designing the hydraulic support top beam as a telescopic top beam and the hydraulic support column as a folding outrigger, the hydraulic support can be folded during disassembly and transportation, thereby significantly reducing the volume of the hydraulic support, making it convenient to operate, highly efficient in transportation, and avoiding interference during transportation.

[0022] Furthermore, by setting a limiting cylinder at the upper outrigger and a sleeve in the lower outrigger, after the upper and lower outriggers are adjusted, the piston rod of the limiting cylinder of the upper outrigger extends into the sleeve in the lower outrigger, thereby playing a limiting role and making the upper and lower outriggers form a whole, thus playing a supporting role.

[0023] Furthermore, limiting blocks are set at the upper and lower support legs. When the upper and lower support legs rotate to 90°, the upper and lower support legs come into contact and thus play a limiting role. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a foldable hydraulic support device applicable to the entire cross-section of a roadway, provided by this utility model, in its unfolded state.

[0025] Figure 2 This is a front view structural diagram of a foldable hydraulic support device suitable for the entire cross-section of a roadway, provided by this utility model, in its unfolded state.

[0026] Figure 3 This is a schematic diagram of the folded structure of a foldable hydraulic support device applicable to the entire cross-section of a roadway, provided by this utility model.

[0027] Figure 4 This is a schematic diagram of a foldable hydraulic support device suitable for the entire cross-section of a roadway, provided by this utility model, in the support state.

[0028] In the diagram: 1. Telescopic beam; 2. Side-push cylinder; 3. Right top beam; 4. Top beam hole; 5. Left top beam; 6. Telescopic cylinder; 7. Diagonal brace cylinder; 8. Upper left support leg; 9. Lower left support leg; 10. Side adjustment cylinder; 11. Left base plate; 12. Middle base plate; 13. Right base plate; 14. Lower right support leg; 15. Upper right support leg; 16. Left base; 17. Right base; 18. Limit cylinder; 19. Sleeve; 20. Limit block. Detailed Implementation

[0029] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0030] Example 1

[0031] This embodiment provides a folding hydraulic support device suitable for the entire cross-section of a roadway, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a telescopic top beam, a removable base plate, and a pair of folding outriggers.

[0032] The telescopic roof beam is used to support the tunnel roof. The top of the folding outrigger is movably hinged to the lower end of the telescopic roof beam, and the bottom of the folding outrigger is movably hinged to the detachable base plate.

[0033] A diagonal bracing cylinder 7 is obliquely arranged between the folding outrigger and the telescopic top beam, and a side-adjusting cylinder 10 is obliquely arranged between the folding outrigger and the detachable base plate. The diagonal bracing cylinder 7 and the side-adjusting cylinder 10 are used to drive the folding outrigger to rotate around the hinge point, so that the folding outrigger can be folded in half or vertically unfolded; the detachable base plate is used to protect the bottom of the tunnel.

[0034] Specifically, the folding support leg includes an upper support leg and a lower support leg. The lower end of the upper support leg is hinged to the top end of the lower support leg, and the top end of the upper support leg is hinged to the telescopic top beam. The lower end of the lower support leg is hinged to the detachable base plate. Specifically, based on their distribution positions, they can be designated as upper left support leg 8, lower left support leg 9, upper right support leg 15, and lower right support leg 14. The lower ends of the lower support legs are respectively provided with a left base 16 and a right base 17.

[0035] One end of the inclined support cylinder 7 is movably connected to the upper support leg, and the other end is movably connected to the telescopic top beam. The inclined support cylinder 7 can control the 90° folding of the upper support leg, and the side adjustment cylinder 10 can control the 90° folding of the lower support leg.

[0036] Specifically, the telescopic top beam includes a telescopic beam 1, a right top beam 3, a left top beam 5, a telescopic cylinder 6, and a side-push cylinder 2. The right top beam 3 is slidably engaged with the left top beam 5 via the telescopic cylinder 6, and the telescopic beam 1 is slidably engaged with the right top beam 3 via the side-push cylinder 2.

[0037] Beneficial effect: When folding the upper and lower outriggers, the stroke of the inclined support cylinder and the side adjustment cylinder is difficult to control, which may cause the angle between the upper outrigger and the telescopic top beam, and the lower outrigger and the detachable base plate to be greater than 90 degrees. Therefore, limit blocks 20 are set at the upper and lower outriggers. When the upper and lower outriggers rotate to 90 degrees, the upper and lower outriggers contact each other and thus play a limiting role.

[0038] Specifically, such as Figure 1 As shown, the detachable base plate includes a left base plate 11, a middle base plate 12, and a right base plate 13. One end of the middle base plate 12 is detachably connected to the left base plate 11, and the other end of the middle base plate 12 is detachably connected to the right base plate 13. The other ends of the left base plate 11 and the right base plate 13 are respectively hinged to the lower support leg. The telescopic top beam has a top beam hole 4 for the drill bit of the anchor cable drilling rig to pass through.

[0039] Example 2

[0040] This embodiment provides a folding hydraulic support device applicable to the entire cross-section of a roadway. The main difference from Embodiment 1 is that, in this embodiment, a limiting cylinder 18 is provided on the upper support leg, and a sleeve 19 is provided on the lower support leg for the insertion of the limiting cylinder 18. The limiting cylinder 18 and the sleeve 19 are used to limit the folding support leg when it is in the vertically extended state, so as to keep the folding support leg in a vertically extended posture.

[0041] Example 3

[0042] This embodiment provides a folding hydraulic support device applicable to the entire cross-section of a roadway. The main difference from Embodiment 1 is that, in this embodiment, limit blocks 20 are respectively provided at the lower hinge point of the upper support leg and the upper hinge point of the lower support leg. The limit blocks 20 are used to limit the folding support leg when it is in a folded state, so that the folding support leg maintains a horizontal folded posture.

[0043] Specifically, the working process of the folding hydraulic support device applicable to the entire cross-section of a roadway provided by this utility model is as follows:

[0044] like Figure 4 As shown, when the support device is working normally, the telescopic cylinder 6, the inclined support cylinder 7, the side adjustment cylinder 10, and the limit cylinder 18 extend, and the left and right outriggers each form a unit, acting as supports. Since it provides full-section support for the roadway, the device is arranged one after another in the roadway to achieve the desired roadway support effect. As the coal face advances, the device needs to be moved cyclically to ensure normal roadway support and normal face advancement.

[0045] like Figure 3 As shown, when moving the device, first remove the bottom plate 12, then retract the telescopic cylinder 6, the diagonal brace cylinder 7, the side adjustment cylinder 10, and the limit cylinder 18 to retract the device, and finally use a forklift to move the device to the usage position.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A folding hydraulic support device applicable to the entire cross-section of a roadway, characterized in that: It includes a telescopic top beam, a removable base plate, and a pair of folding outriggers; The telescopic top beam is used to support the roof of the tunnel; The top of the folding outrigger is movably hinged to the lower end of the telescopic top beam, and the bottom of the folding outrigger is movably hinged to the detachable base plate. An inclined bracing cylinder is obliquely arranged between the folding outrigger and the telescopic top beam, and a side adjustment cylinder is obliquely arranged between the folding outrigger and the detachable base plate. The inclined bracing cylinder and the side adjustment cylinder are used to drive the folding outrigger to rotate around the hinge point so that the folding outrigger can be folded in half or unfolded vertically. The detachable base plate is used to protect the bottom of the tunnel.

2. The folding hydraulic support device applicable to the entire cross-section of a roadway according to claim 1, characterized in that: The folding support leg includes an upper support leg and a lower support leg. The lower end of the upper support leg is hinged to the top end of the lower support leg. The top end of the upper support leg is hinged to the telescopic top beam. The lower end of the lower support leg is hinged to the detachable base plate.

3. A folding hydraulic support device suitable for the entire cross-section of a roadway according to claim 2, characterized in that: One end of the inclined support cylinder is movably connected to the upper support leg, and the other end of the inclined support cylinder is movably connected to the telescopic top beam.

4. A folding hydraulic support device applicable to the entire cross-section of a roadway according to claim 1, characterized in that: The telescopic top beam includes a telescopic beam, a right top beam, a left top beam, a telescopic cylinder, and a side-push cylinder. The right top beam is slidably engaged with the left top beam via the telescopic cylinder, and the telescopic beam is slidably engaged with the right top beam via the side-push cylinder.

5. A folding hydraulic support device suitable for the entire cross-section of a roadway according to claim 2 or 3, characterized in that: The upper support leg is equipped with a limiting cylinder, and the lower support leg is equipped with a sleeve into which the limiting cylinder is inserted. The limiting cylinder and the sleeve are used to limit the folding support leg when it is in the vertically unfolded state, so as to keep the folding support leg in the vertically unfolded posture.

6. A folding hydraulic support device applicable to the entire cross-section of a roadway according to claim 5, characterized in that: Limiting blocks are respectively provided at the lower hinge of the upper support leg and the upper hinge of the lower support leg. The limiting blocks are used to limit the folding support leg when it is in the folded state, so as to keep the folding support leg in a horizontal folded posture.

7. A folding hydraulic support device applicable to the entire cross-section of a roadway according to claim 6, characterized in that: The detachable base plate includes a left base plate, a middle base plate, and a right base plate. One end of the middle base plate is detachably connected to the left base plate, and the other end of the middle base plate is detachably connected to the right base plate. The other ends of the left base plate and the other ends of the right base plate are respectively hinged to the lower support leg.

8. A folding hydraulic support device applicable to the entire cross-section of a roadway according to claim 7, characterized in that: The telescopic top beam has a top beam hole for the drill bit of the anchor cable drilling rig to pass through.

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