A single column support and its supporting system

Abstract

The application belongs to the technical field of hydraulic support and discloses a single-stand column support, which comprises a base, a stand column and a top beam, the base is provided with auxiliary telescopic assemblies on both sides, the auxiliary telescopic assemblies can horizontally expand and contract along the circumferential direction perpendicular to the roadway, and are used for increasing the contact area between the base and the bottom of the roadway; the upper end surface of the base is provided with a mounting assembly, the mounting assembly comprises a fixed part and a mounting part, one end of the fixed part is fixedly connected to the upper end surface of the base, the other end is connected to the mounting part, the mounting part is detachably connected to the stand column, and is used for fixing the stand column; and the two ends of the stand column are respectively connected to the base and the top beam. The single-stand column support with a small base width is arranged, the occupied space is reduced, and the problems that the space occupied by the base and the supporting stand column in the prior art is large, the space of the roadway is insufficient, and the transportation belt and the equipment transportation channel are difficult to reach the reserved standard in the working condition that the anchor rods and anchor cables are used for reinforcing the top and both sides of the roadway are solved.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic support technology, specifically relating to a single-column support and its support system. Background Technology

[0002] Hydraulic supports are structures used to control mine pressure in coal mining faces. They can reliably and effectively support and control the roof of the working face, isolate the goaf, prevent gangue from entering the mining face and pushing the conveyor. Hydraulic supports maximize the safety of coal miners by ensuring the stability of the overlying rock on the working face.

[0003] In the prior art, for example, Chinese invention patent application number CN113446041A discloses a single-column lightweight hydraulic support, specifically comprising a top beam, a supporting column, and a base. The supporting column is disposed between the top beam and the base, and there is one supporting column. A U-shaped pushing frame is disposed on the outer side of the base, and a double-propulsion cylinder is disposed between the base and the pushing frame. The front end of the pushing frame is used to connect to a scraper conveyor. This invention uses only one supporting column between the base and the top beam, while ordinary supporting columns consist of four or two. This reduces the number of supporting columns used, allowing for smaller base and top beam dimensions and a simpler structure, facilitating transportation in low and narrow underground tunnels. It is suitable for thin coal seam mining conditions in small coal mines, and its manufacturing cost is also lower.

[0004] However, when the top and sides of the tunnel are reinforced with anchor bolts and cables, the above-mentioned base and support columns occupy a large space in the tunnel, which can easily lead to insufficient tunnel space and make it difficult for the conveyor belt and equipment transport channel to meet the reserved standards. Summary of the Invention

[0005] Based on this, this application provides a single-column support and its support system to solve the problem that in the case of using anchor bolts and anchor cables to reinforce the top and sides of the roadway, the existing base and support column occupy a large space in the roadway, which can easily lead to insufficient roadway space and make it difficult for the conveyor belt and equipment transport channel to meet the reserved standards.

[0006] The technical solution to the above-mentioned technical problems in this application is as follows:

[0007] A single-column support includes: a base, a column, and a top beam. Auxiliary telescopic components are provided on both sides of the base, which can horizontally extend and retract along the direction perpendicular to the circumference of the tunnel to increase the contact area between the base and the bottom of the tunnel. An installation component is provided on the upper surface of the base, comprising a fixing part and an installation part. One end of the fixing part is fixedly connected to the upper surface of the base, and the other end is connected to the installation part. The installation part is detachably connected to the column for fixing the column. The two ends of the column are respectively connected to the base and the top beam.

[0008] Preferably, the auxiliary telescopic assembly includes a telescopic jack and an auxiliary support plate. The fixed end of the telescopic jack extends into the base and is detachably connected to the base. The telescopic end of the telescopic jack is connected to the auxiliary support plate, and the lower end surface of the auxiliary support plate is flush with the lower end surface of the base.

[0009] Preferably, a rotatable self-resetting device is provided between the column and the top beam, which enables the top beam to rotate along the column.

[0010] Preferably, the rotatable self-resetting device includes a limiting ring and a reset elastic washer; the lower end face of the top beam is provided with two slots, the two slots clamping the two ends of the limiting ring, and the limiting ring is detachably connected to the top beam; the reset elastic washer is clamped between the top beam and the limiting ring, the limiting ring has a mounting groove, and the reset elastic washer is limited in the mounting groove; the limiting ring has a first through hole, and the reset elastic washer has a second through hole, the first through hole and the second through hole corresponding to each other; one end of the column is provided with a ball head, and the ball head has an axially symmetrical locking position, the reset elastic washer has a mating surface matching the locking position, the ball head passes through the first through hole and the second through hole, and the locking position engages with the mating surface.

[0011] Preferably, the mounting part includes a fixing block and a snap-fit ​​component. One end of the fixing block is fixedly connected to the fixing part, and the end of the fixing block away from the fixing part is provided with an arc-shaped groove. The snap-fit ​​component is provided with a second groove that matches the arc-shaped groove. The snap-fit ​​component is detachably connected to the fixing block, and the arc-shaped groove and the second groove respectively wrap around both sides of the column.

[0012] Preferably, the snap-fit ​​component includes a first arc-shaped snap-fit ​​plate and a second arc-shaped snap-fit ​​plate, the first arc-shaped snap-fit ​​plate and the second arc-shaped snap-fit ​​plate are hinged to each other on both sides of the fixed block away from the fixed part, and the ends of the first arc-shaped snap-fit ​​plate and the second arc-shaped snap-fit ​​plate away from the fixed block are detachably connected to each other.

[0013] A single-column support system is applied to a single-column support as described in any one of the claims, comprising a coal conveyor belt and an equipment transport channel.

[0014] The technical solution adopted in this application can achieve the following beneficial effects:

[0015] 1. By setting up a single-column support with a narrower base, the space occupied is reduced, which solves the problem that using existing bases and support columns in the case of anchor bolts and cables to reinforce the top and sides of the roadway occupies a large amount of roadway space, which can easily lead to insufficient roadway space and make it difficult for the conveyor belt and equipment transport channel to meet the reserved standards.

[0016] 2. By setting up an auxiliary telescopic component, the column extends and retracts before it extends, increasing the contact area between the base and the bottom of the tunnel. This solves the problem that when the base area is small and the bottom of the tunnel has a slope, the center of gravity exceeds the base when the column is raised, causing the single column support to tip over. Attached Figure Description

[0017] Figure 1 This is a front view of the single-column support frame of this application.

[0018] Figure 2 This is a side view of the single-column support frame of this application.

[0019] Figure 3 This is a partial top view of the single-column support frame of this application.

[0020] Figure 4 This is a partial cross-sectional view of the single-column support system of this application.

[0021] Figure 5 This is a top view of the single-column support system of this application.

[0022] In the figure: base 100, fixing part 110, mounting part 120, fixing block 121, first arc-shaped clamping plate 123, second arc-shaped clamping plate 124, auxiliary telescopic component 130, telescopic jack 131, auxiliary support plate 132, column 200, rotatable self-resetting device 210, top beam 300. Detailed Implementation

[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0024] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figures 1 to 3 This application provides a single-column support, including: a base 100, a column 200, and a top beam 300. Auxiliary telescopic components 130 are provided on both sides of the base 100. The auxiliary telescopic components 130 are horizontally telescopic in a direction perpendicular to the circumference of the tunnel, used to increase the contact area between the base 100 and the bottom of the tunnel. An installation component is provided on the upper surface of the base 100. The installation component includes a fixing part 110 and an installation part 120. One end of the fixing part 110 is fixedly connected to the upper surface of the base 100, and the other end is connected to the installation part 120. The installation part 120 is detachably connected to the column 200 for fixing the column 200. The two ends of the column 200 are respectively connected to the base 100 and the top beam 300.

[0027] Specifically, roadways are typically reinforced using advanced support frames or anchor bolts and cables. When using anchor bolts and cables, the roadway width is approximately six meters, and there are several extensions extending into the roadway from both sides. The bottom of the roadway is usually equipped with a half-meter drainage ditch, and a 1.5-meter conveyor belt is installed next to the drainage ditch. The width of the transport channel for equipment trains, large equipment, etc., is not less than 2 meters. Common four-column 200 supports and advanced supports are too wide.

[0028] The width of the base 100 does not exceed 0.7 meters. The upper surface of the base 100 is provided with a groove. One end of the column 200 is set in the groove and fixed by the mounting components. The specific connection method adopts the method of installing the column 200 of the four-column 200 bracket with the base 100. The fixing part 110 is fixedly connected to the upper surface of the base 100, and the mounting part 120 located on one side of the groove is connected to the end of the fixing part 110 away from the base 100. The extension direction of the mounting part 120 is the same as the extension direction of the tunnel, and it is detachably connected to the column 200. The base 100 is provided with auxiliary telescopic components 130 on both sides. The auxiliary telescopic components 130 adopt telescopic rods, jacks, etc., and increase the contact area between the base 100 and the ground by extending out of the base 100.

[0029] Furthermore, the base 100 is moved to a preset position using a support moving device, and then the auxiliary telescopic component 130 is extended to increase the contact area between the base 100 and the ground, raising the column 200 to drive the top beam 300 to rise and contact the top of the tunnel; after the top beam 300 has contacted the top of the tunnel, the auxiliary telescopic component 130 is retracted, and then the above steps are repeated until the tunnel is equidistantly supported by single column 200 supports.

[0030] The technical solution of the single-column 200 bracket adopted in this application can achieve the following beneficial effects:

[0031] 1. By setting a single column 200 bracket with a smaller base 100 width, the space occupied is reduced, which solves the problem that the existing base 100 and support column 200 occupy a large space in the roadway when anchor bolts and anchor cables are used to reinforce the top and sides of the roadway. This can easily lead to insufficient roadway space and make it difficult for the conveyor belt and equipment transport channel to meet the reserved standards.

[0032] 2. By setting up an auxiliary telescopic component 130, which extends and retracts before the column 200 extends, the contact area between the base 100 and the bottom of the tunnel is increased, thus solving the problem that the base 100 has a small area and the bottom of the tunnel has a slope, causing the center of gravity to exceed the base 100 when the column 200 is raised, resulting in the entire support of the single column 200 tipping over.

[0033] In the above scheme, the auxiliary telescopic component 130 includes a telescopic jack 131 and an auxiliary support plate 132. The fixed end of the telescopic jack 131 extends into the base 100 and is detachably connected to the base 100. The telescopic end of the telescopic jack 131 is connected to the auxiliary support plate 132. The lower end surface of the auxiliary support plate 132 is flush with the lower end surface of the base 100.

[0034] The telescopic jack 131 is connected via a sleeve. Two round holes (through holes with baffles in the middle) are provided on both sides of the base 100 (both sides in the width direction of the tunnel). The two round holes are located at both ends in the length direction of the base 100. A sleeve is installed in the round hole. The fixed end of the telescopic jack 131 extends into the sleeve. The telescopic end of the telescopic jack 131 is connected to both ends of the auxiliary support plate 132 by means of pins, etc. The telescopic stroke of the telescopic jack 131 is less than half a meter. Before the column 200 extends, the telescopic jack 131 extends, driving the auxiliary support plate 132 to move. After the column 200 is raised, the telescopic jack 131 retracts.

[0035] Based on the above scheme, a rotatable self-resetting device 210 is provided between the column 200 and the top beam 300, and the rotatable self-resetting device 210 enables the top beam 300 to rotate along the column 200. The rotatable self-resetting device 210 includes a limiting ring and a reset elastic washer. Two slots are provided on the lower end face of the top beam 300, clamping both ends of the limiting ring, and the limiting ring is detachably connected to the top beam 300. The reset elastic washer is clamped between the top beam 300 and the limiting ring. The limiting ring has a mounting groove, and the reset elastic washer is limited within the mounting groove. The limiting ring has a first through hole, and the reset elastic washer has a second through hole, with the first through hole corresponding to the second through hole. One end of the column 200 is provided with a ball head, and the ball head has an axially symmetrical locking position. The reset elastic washer has a mating surface that matches the locking position. The ball head passes through the first through hole and the second through hole, and the locking position engages with the mating surface. By providing the rotatable self-resetting device 210, the problem of low support stability of the top beam 300 due to the slope of the roadway top is solved.

[0036] In one embodiment of this application, the mounting part 120 includes a fixing block 121 and a snap-fit ​​member. One end of the fixing block 121 is fixedly connected to the fixing part 110, and the end of the fixing block 121 away from the fixing part 110 is provided with an arc-shaped groove. The snap-fit ​​member is provided with a second groove that matches the arc-shaped groove. The snap-fit ​​member is detachably connected to the fixing block 121, and the arc-shaped groove and the second groove respectively wrap around both sides of the column 200.

[0037] The fixing block 121 is fixedly connected to the fixing part 110 by welding or other fixing methods. The arc-shaped groove and the second groove are spliced ​​together to form a ring with the same stroke as the outer diameter of the column 200. The fixing block 121 has threaded holes at both ends, located on both sides of the arc-shaped groove. The second groove of the snap-fit ​​part also has through holes on both sides. Bolts are passed through the through holes and threaded into the threaded holes to connect the fixing block 121 and the snap-fit ​​part together. The fixing block 121 and the snap-fit ​​part prevent the column 200 from tipping over. At the same time, the detachable connection facilitates subsequent mechanical maintenance and is simple and convenient to operate.

[0038] In another embodiment of this application, the snap-fit ​​component includes a first arc-shaped snap-fit ​​plate 123 and a second arc-shaped snap-fit ​​plate 124. The first arc-shaped snap-fit ​​plate 123 and the second arc-shaped snap-fit ​​plate 124 are hinged to both sides of the fixed block 121 at the end away from the fixed part 110, and the ends of the first arc-shaped snap-fit ​​plate and the second arc-shaped snap-fit ​​plate 124 away from the fixed block 121 are detachably connected to each other.

[0039] The fixing block 121 has connecting ears at both ends, with through holes on the connecting ears. The first arc-shaped clamping plate 123 and the second arc-shaped clamping plate 124 have connecting holes at one end and clamping plates at the other end. The clamping plates also have insertion holes. Bolts pass through the through holes and connecting holes, connecting the first arc-shaped clamping plate 123 and the second arc-shaped clamping plate 124 to the two ends of the fixing block 121 respectively. The first arc-shaped clamping plate 123 and the second arc-shaped clamping plate 124 can rotate along the bolts. After the first arc-shaped clamping plate 123 and the second arc-shaped clamping plate 124 rotate, the clamping plates engage with each other, and bolts pass through the insertion holes to connect the first arc-shaped clamping plate 123 and the second arc-shaped clamping plate 124 together. Through the setting of the first arc-shaped clamping plate 123 and the second arc-shaped clamping plate 124, they form an integral part with the fixing block 121, making the operation simpler and more convenient, and solving the problems of difficult installation by a single person and high labor intensity.

[0040] Please see Figure 4 and Figure 5 A single-column 200 support system is applied to a single-column 200 support as described in any one of the claims, including a coal conveyor belt and an equipment transport channel.

[0041] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A single-column support, characterized in that, include: The system comprises a base, a column, and a top beam. Auxiliary telescopic components are provided on both sides of the base, allowing for horizontal telescopic movement along the direction perpendicular to the tunnel circumference to increase the contact area between the base and the tunnel bottom. An installation component is provided on the upper surface of the base, comprising a fixing part and an installation part. One end of the fixing part is fixedly connected to the upper surface of the base, and the other end is connected to the installation part. The installation part is detachably connected to the column for fixing the column. The two ends of the column are respectively connected to the base and the top beam.

2. The single-column support as described in claim 1, characterized in that, The auxiliary telescopic assembly includes a telescopic jack and an auxiliary support plate. The fixed end of the telescopic jack extends into the base and is detachably connected to the base. The telescopic end of the telescopic jack is connected to the auxiliary support plate, and the lower end surface of the auxiliary support plate is flush with the lower end surface of the base.

3. The single-column support as described in claim 1, characterized in that, A rotatable self-resetting device is provided between the column and the top beam, which enables the top beam to rotate along the column.

4. The single-column support as described in claim 3, characterized in that, The rotatable self-resetting device includes a limiting ring and a reset elastic washer; the lower end face of the top beam is provided with two slots, the two slots clamp the two ends of the limiting ring, and the limiting ring is detachably connected to the top beam; the reset elastic washer is clamped between the top beam and the limiting ring, the limiting ring has a mounting groove, and the reset elastic washer is limited in the mounting groove; the limiting ring has a first through hole, and the reset elastic washer has a second through hole, the first through hole and the second through hole corresponding to each other; one end of the column is provided with a ball head, and the ball head has an axially symmetrical locking position, the reset elastic washer has a mating surface that matches the locking position, the ball head passes through the first through hole and the second through hole, and the locking position engages with the mating surface.

5. The single-column support as described in claim 1, characterized in that, The mounting part includes a fixing block and a snap-fit ​​component. One end of the fixing block is fixedly connected to the fixing part, and the end of the fixing block away from the fixing part is provided with an arc-shaped groove. The snap-fit ​​component is provided with a second groove that matches the arc-shaped groove. The snap-fit ​​component is detachably connected to the fixing block, and the arc-shaped groove and the second groove respectively wrap around the two sides of the column.

6. The single-column support as described in claim 5, characterized in that, The snap-fit ​​component includes a first arc-shaped snap-fit ​​plate and a second arc-shaped snap-fit ​​plate. The first arc-shaped snap-fit ​​plate and the second arc-shaped snap-fit ​​plate are hinged to each other on both sides of the fixed block away from the fixed part, and the ends of the first arc-shaped snap-fit ​​plate and the second arc-shaped snap-fit ​​plate away from the fixed block are detachably connected to each other.

7. A single-column support system, characterized in that, The invention is applied to a single-column support as described in claims 1-6, comprising a coal conveyor belt and an equipment transport channel.

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