Hydraulic support base space protection device and hydraulic support

Abstract

The present invention discloses a hydraulic support base space protection device and a hydraulic support, comprising a base, a connecting rod pad, two sliding rods, a plurality of sliding members, a plurality of elastic members, and a shielding member. The base comprises two oppositely arranged side walls and an intermediate pad; the connecting rod pad is disposed between the two side walls and is disposed opposite to the intermediate pad, the bottom side of the connecting rod pad is rotatably connected to the base, the two sliding rods are disposed above the two side walls and extend in opposite directions between the intermediate pad and the connecting rod pad; the plurality of sliding members are spaced apart along the extending direction of the sliding rods, and each sliding member is slidably assembled with the two sliding rods; each sliding rod is sleeved with a plurality of elastic members, and the plurality of elastic members on each sliding rod are alternately arranged with the plurality of sliding members; the shielding member is deformable and covers the plurality of sliding members, the base, and the connecting rod pad. The protective device of the present invention can prevent coal gangue from falling into the space of the base box and has a self-cleaning function.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic supports, in particular to a hydraulic support base space protection device and a hydraulic support. Background Art

[0002] The top coal caving hydraulic support is the core equipment of the fully-mechanized top coal caving working face in coal mines. With the increase of the support height of the two-column top coal caving hydraulic support and the increase of the spatial cross-section, the coal blocks and gangue that fall during the coal caving process can easily fall into the box space where the rear connecting rod of the support is hinged to the base, causing the original space of the base box to be filled with the fallen coal blocks or gangue and causing obstacles to the posture control of the hydraulic support.

[0003] Secondly, the gangue filling can also cause the following two problems: ① During the coal (gangue) rolling process, the gangue filling will wear the paint on the rear connecting rod and the base housing of the bracket, and easily rust in high humidity environments. ② As the gangue continues to break and accumulate in the housing over time, the accumulated gangue will occupy the rotating space of the rear connecting rod and indirectly squeeze the housing, causing deformation and damage. In severe cases, it can even damage the stability of the base and bracket. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a hydraulic support base space protection device, which can prevent coal gangue from falling into the space of the base box, avoid the accumulation of coal gangue and wear on the paint surface, and has its own self-cleaning function, fully ensuring the continuity and safety of the use of the base box.

[0006] An embodiment of the present invention further provides a hydraulic support including the above-mentioned hydraulic support base space protection device.

[0007] The hydraulic support base space protection device according to the embodiment of the present invention comprises:

[0008] A base body, the base body comprising two oppositely arranged side walls and an intermediate cushion layer provided between the two side walls;

[0009] A connecting rod pad layer, the connecting rod pad layer is provided between the two side walls and is arranged opposite to the middle pad layer, the bottom side of the connecting rod pad layer is rotatably connected to the base, and the connecting rod pad layer is used to be connected to the bracket connecting rod;

[0010] Two sliding rods, the two sliding rods are respectively arranged above the two side walls and extend in the opposite directions of the middle pad and the connecting rod pad;

[0011] a plurality of sliding members and a plurality of elastic members, wherein the plurality of sliding members are spaced apart along the extending direction of the sliding rods, and each of the sliding members is slidably assembled with two of the sliding rods, and each of the sliding rods is sleeved with a plurality of the elastic members, and the plurality of the elastic members on each of the sliding rods are alternately arranged with the plurality of sliding members;

[0012] The shielding member is deformable and covers the plurality of sliding members, the base body, and the connecting rod pad layer, and the shielding member is connected to the plurality of sliding members, the middle pad layer, and the connecting rod pad layer.

[0013] In some embodiments, when the support connecting rod pushes the connecting rod pad toward the middle pad, the connecting rod pad fits against a sliding member adjacent to the connecting rod pad, a plurality of sliding members approach each other and slide toward one side of the middle pad, the shielding member bends and sinks to form a plurality of grooves, and a plurality of elastic members deform and store energy;

[0014] When the support link pulls the link pad away from the middle pad, the plurality of sliding members move away from each other and slide toward one side of the link pad, the shielding member is stretched and tightened, and the plurality of elastic members release elastic potential energy and reset.

[0015] In some embodiments, the base includes two first side pads and a base pad, the base pad includes two second side pads and the middle pad, the middle pad is connected to one side of the two second side pads, and the other side of each second side pad is connected to one first side pad respectively, and the first side pad and the second side pad connected to the first side pad form a whole that constitutes the side wall.

[0016] In some embodiments, the base pad, the connecting rod pad, and the two first side pads are all made of elastic buffering materials, and the outer surfaces of the base pad, the connecting rod pad, and each of the first side pads are provided with a magnetic layer for magnetic attraction and fixation.

[0017] In some embodiments, the middle pad layer and the connecting rod pad layer are arranged opposite to each other in the extension direction of the sliding rod, and the distance between the middle pad layer and the connecting rod pad layer gradually decreases from top to bottom;

[0018] The base includes a shaft body, which extends in relative directions along the two side walls. One end of the shaft body is connected to the bottom of the connection between the first side pad layer and the second side pad layer of one side wall, and the other end of the shaft body is connected to the bottom of the connection between the first side pad layer and the second side pad layer of the other side wall. The bottom side of the connecting rod pad layer is rotatably connected to the shaft body.

[0019] In some embodiments, a first limit block and a second limit block are provided on the top side of each side wall, the first limit block and the second limit block are arranged at intervals in the extension direction of the sliding rod, each sliding rod is connected between the first limit block and the second limit block, and a plurality of sliding members are located between the first limit block and the second limit block.

[0020] In some embodiments, one end of the elastic member adjacent to the first limit block is fixedly connected to the first limit block, and the other end is fixedly connected to the sliding member adjacent to the first limit block; one end of the elastic member adjacent to the second limit block is fixedly connected to the second limit block, and the other end is fixedly connected to the sliding member adjacent to the second limit block.

[0021] In some embodiments, two inclined surfaces are provided on the top side of the sliding member, each of the inclined surfaces is arranged to be inclined downward along a direction from the middle of the sliding member to the end of the sliding member, and the shielding member is connected and fixed to the inclined surface.

[0022] In some embodiments, there are multiple shielding members, and the multiple shielding members are arranged at intervals along the extension direction of the sliding rod, and each shielding member is connected between the connecting rod pad and the sliding member, or between two adjacent sliding members, or between the sliding member and the intermediate pad;

[0023] And / or, a guide hole is provided on the sliding member, and the diameter of the guide hole is smaller than the diameter of the elastic member.

[0024] The hydraulic support of the embodiment of the present invention includes a base box, a support connecting rod and a hydraulic support base space protection device as described in any of the above embodiments. The middle cushion layer is placed above the base box body, and the support connecting rod is connected to the connecting rod cushion layer.

[0025] Beneficial effects: The hydraulic support base space protection device and the hydraulic support of the embodiment of the present invention can prevent coal gangue from falling into the space of the base box, avoid the accumulation of coal gangue and the wear of the paint surface, and have a self-cleaning function, fully ensuring the continuity and safety of the use of the base box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural perspective view of a protection device according to an embodiment of the present invention.

[0027] Figure 2 yes Figure 1 Schematic diagram of the right side of the protection device.

[0028] Figure 3 Schematic diagram of the arrangement of shielding members of the protection device according to an embodiment of the present invention.

[0029] Figure 4 yes Figure 3 Schematic diagram of the right side of the protection device.

[0030] Reference numerals:

[0031] 1-base; 11-base cushion; 111-middle cushion; 112-second side cushion; 12-first side cushion; 13-side wall; 14-axis; 15-second limit block; 16-first limit block;

[0032] 2-connecting rod cushion; 3-sliding rod; 4-sliding member; 41-inclined surface; 5-elastic member; 6-shielding member. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figure 1 and Figure 3 As shown, the hydraulic support base space protection device (hereinafter referred to as the protection device) of an embodiment of the present invention includes a base 1, a connecting rod pad 2, two sliding rods 3, multiple sliding parts 4, multiple elastic parts 5 and a shielding part 6.

[0035] The base 1 includes two oppositely arranged side walls 13 and an intermediate pad 111 disposed between the two side walls 13. Figure 1 As shown, both the side walls 13 and the middle cushion 111 can be flat plate structures, wherein the two side walls 13 can be arranged vertically and spaced apart in the left-right direction, and the middle cushion 111 can be connected between the right sides of the two side walls 13. When in use, the middle cushion 111 can be placed on the base box of the hydraulic support to provide shielding and protection.

[0036] The connecting rod pad 2 is arranged between the two side walls 13 and opposite to the middle pad 111. The bottom side of the connecting rod pad 2 is connected to the base 1 in a rotational manner, and the connecting rod pad 2 is used to connect to the bracket connecting rod. Figure 1 As shown, the connecting rod pad 2 can also be a flat plate structure. The connecting rod pad 2 can be arranged opposite to the middle pad 111 in the front-to-back direction. The bottom side of the connecting rod pad 2 can be rotatably connected to the bottom of the base 1 via a pivot or the like. When in use, the connecting rod pad 2 can be connected and fixed to the support rod of the hydraulic support, wherein the support rod can specifically be the rear link of the hydraulic support.

[0037] The two sliding rods 3 are respectively arranged above the two side walls 13 and extend in the opposite direction of the middle pad 111 and the connecting rod pad 2. Figure 1 and Figure 2 As shown, the slide rod 3 can be a round rod, and the two slide rods 3 can be fixed above the two side walls 13 respectively. The two slide rods 3 can be arranged at intervals in the left and right directions, and each slide rod 3 can generally be extended along the front and back directions.

[0038] Multiple sliding members 4 are arranged at intervals along the extension direction of the sliding rod 3, and each sliding member 4 is slidably assembled with two sliding rods 3. Each sliding rod 3 is sleeved with multiple elastic members 5, and the multiple elastic members 5 on each sliding rod 3 are alternately arranged with multiple sliding members 4.

[0039] For example, Figure 1 and Figure 2 As shown, the sliding member 4 can be a vertical plate structure, and multiple sliding members 4 can be arranged in parallel and spaced apart in the front-to-back direction. Each sliding member 4 can extend along the left-to-right direction. The left end of each sliding member 4 can be slidably assembled with the left sliding rod 3, and the right end of each sliding member 4 can be slidably assembled with the right sliding rod 3.

[0040] The elastic member 5 can be a spring, and the elastic member 5 can be sleeved on the outer peripheral side of the sliding rod 3. Each sliding rod 3 can be sleeved with multiple elastic members 5 arranged in sequence along the front and rear directions. The multiple elastic members 5 and multiple sliding members 4 on each sliding rod 3 can be arranged alternately one by one in the front and rear directions, and an elastic member 5 can be provided on both the front and rear sides of each sliding member 4.

[0041] The shielding member 6 is deformable and covers the plurality of sliding members 4, the base 1, and the connecting rod pad 2, and the shielding member 6 is connected to the plurality of sliding members 4, the intermediate pad 111, and the connecting rod pad 2. For example, Figure 3 and Figure 4 As shown, the shielding member 6 can be a cloth-like structure. For example, the shielding member 6 can be made of rubber and fiber composite materials. The shielding member 6 can be connected and fixed to the upper surface of each sliding member 4, the upper surface of the middle pad 111 and the upper surface of the connecting rod pad 2 by bonding.

[0042] When in use, the protection device can be placed directly on the base box of the hydraulic support, and the connecting rod pad 2 of the protection device can be connected and fixed to the support connecting rod of the hydraulic support.

[0043] When the support connecting rod of the hydraulic support pushes the connecting rod pad 2 forward, the connecting rod pad 2 can swing forward and fit with the rearmost sliding member 4. At this time, all the sliding members 4 will slide forward under the pushing action of the support connecting rod, and the shielding member 6 above the sliding member 4 will be squeezed and deformed. The parts of the shielding member 6 between the middle pad 111 and the frontmost sliding member 4, between two adjacent sliding members 4, and between the connecting rod pad 2 and the rearmost sliding member 4 will sink and form multiple grooves. The multiple grooves are arranged at intervals in the front-to-back direction, and each groove generally extends along the left-right direction. The above-mentioned multiple elastic members 5 will be stretched or compressed, so that each elastic member 5 will store elastic potential energy.

[0044] When the bracket connecting rod pulls the connecting rod pad 2 in the direction away from the middle pad 111, that is, when the bracket connecting rod pulls the rearmost sliding member 4 backward, the multiple sliding members 4 will move away from each other and slide backward under the joint action of the bracket connecting rod and the multiple elastic members 5. At this time, due to the increase in the distance between the two adjacent sliding members 4, the shielding member 6 will be stretched and tightened, and the multiple elastic members 5 will release the elastic potential energy and reset.

[0045] Since the shielding member 6 can always block the upper part of the hydraulic support's base box in both of the above-mentioned operating modes, coal gangue and the like will fall onto the shielding member 6 rather than directly into the empty space of the base box. Furthermore, during the process of extending and bending the shielding member 6, coal gangue debris and the like on the shielding member 6 can be shaken off, thus making the protective device itself have a self-cleaning function.

[0046] Secondly, the middle cushion layer 111, the two side walls 13 and the connecting rod cushion layer 2 can also play a role in shielding and protection, that is, the shielding member 6 forms a layer of protection, and the middle cushion layer 111, the two side walls 13 and the connecting rod cushion layer 2 form a whole layer of protection. Through these two layers of protection, coal gangue and the like are fully prevented from falling into the idle space of the base box.

[0047] It should be noted that the coal gangue in the embodiment of the present invention is a general term, and coal gangue can specifically be coal, gangue, or a mixture of coal and gangue.

[0048] The hydraulic support base space protection device of the embodiment of the present invention can prevent coal gangue from falling into the space of the base box, avoids the accumulation of coal gangue and wear on the paint surface, and has a self-cleaning function, fully ensuring the continuity and safety of the use of the base box.

[0049] In some embodiments, the substrate 1 includes two first side pads 12 and a base pad 11, the base pad 11 includes two second side pads 112 and an intermediate pad 111, the intermediate pad 111 is connected to one side of the two second side pads 112, and the other side of each second side pad 112 is respectively connected to a first side pad 12, and the first side pad 12 and the second side pad 112 connected to the first side pad 12 form a whole that constitutes a side wall 13.

[0050] For example, Figure 1 As shown, the base cushion layer 11 as a whole can be a U-shaped structure, the two second side cushion layers 112 of the base cushion layer 11 can both be vertical plate structures and can be arranged in parallel and spaced apart in the left and right directions, and the middle cushion layer 111 can be connected between the front side edges of the two second side cushion layers 112.

[0051] The two first side pads 12 can also be vertical plate structures and can be arranged in parallel and spaced apart in the left-right direction. One of the first side pads 12 can be bonded and fixed to the back side of the second side pad 112 by polyurethane glue, and the other first side pad 12 can also be bonded and fixed to the back side of the other second side pad 112 by polyurethane glue. The bonded first side pads 12 and second side pads 112 form a side wall 13 of the base 1. Since the bottom and side surfaces of the first side pad 12 and the second side pad 112 have different undulations, this split design facilitates independent processing and molding, and is also conducive to simplifying the overall processing technology and reducing processing costs.

[0052] In some embodiments, the base pad 11, the connecting rod pad 2, and the two first side pads 12 are all made of elastic buffering materials, and the outer surfaces of the base pad 11, the connecting rod pad 2, and each first side pad 12 are provided with a magnetic layer for magnetic attraction and fixation.

[0053] For example, the elastic cushioning material can be a rubber cushioning material, so that the base cushion layer 11, the connecting rod cushion layer 2, and the two first side cushion layers 12 have moderate hardness, wear resistance, and anti-aging properties. The magnetic layer can be a strong magnetic material, so that the base cushion layer 11, the connecting rod cushion layer 2, and the two first side cushion layers 12 can be magnetically attached and fixed to corresponding components of the hydraulic support, improving the convenience of installation and removal.

[0054] In some embodiments, the middle pad layer 111 and the connecting rod pad layer 2 are arranged opposite to each other in the extension direction of the sliding rod 3 , and the distance between the middle pad layer 111 and the connecting rod pad layer 2 gradually decreases from top to bottom.

[0055] For example, Figure 1 and Figure 2As shown, the middle pad 111 and the connecting rod pad 2 can be arranged relative to each other in the front-to-back direction, and the spacing between the middle pad 111 and the connecting rod pad 2 in the front-to-back direction can gradually become smaller from top to bottom, that is, the middle pad 111 and the connecting rod pad 2 can be roughly arranged in an eight-shaped shape, so that the position arrangement of the middle pad 111 and the connecting rod pad 2 can be adapted to the bottom structure of the hydraulic support.

[0056] The base 1 includes a shaft body 14, which extends in relative directions along the two side walls 13. One end of the shaft body 14 is connected to the bottom of the connection between the first side pad 12 and the second side pad 112 of one side wall 13, and the other end of the shaft body 14 is connected to the bottom of the connection between the first side pad 12 and the second side pad 112 of the other side wall 13. The bottom side of the connecting rod pad 2 is rotatably connected to the shaft body 14.

[0057] For example, Figure 1 As shown, the shaft 14 can be a pivot, and the shaft 14 can be fixed to the bottom of the base 1 by bonding or the like. The shaft 14 can extend in the left and right directions, wherein the left end of the shaft 14 can be connected and fixed to the bottom of the joint between the first side pad 12 and the second side pad 112 on the left, and the right end of the shaft 14 can be connected and fixed to the bottom of the joint between the first side pad 12 and the second side pad 112 on the right.

[0058] The connecting rod pad 2 can be arranged as a whole in an inclined direction from the upper rear to the lower front. The extension direction of the connecting rod pad 2 can be tangential to the shaft 14, and the bottom edge of the connecting rod pad 2 can be rotatably assembled with the shaft 14, thereby meeting the use requirement of the connecting rod pad 2 rotating around the shaft 14 under the drive of the bracket connecting rod.

[0059] In some embodiments, a first limit block 16 and a second limit block 15 are provided on the top side of each side wall 13, and the first limit block 16 and the second limit block 15 are arranged at intervals in the extension direction of the sliding rod 3. Each sliding rod 3 is connected between the first limit block 16 and the second limit block 15, and multiple sliding members 4 are located between the first limit block 16 and the second limit block 15.

[0060] For example, Figure 1 As shown, the first limit block 16 and the second limit block 15 can both be block-shaped structures. The first limit block 16 and the second limit block 15 can be fixed to the top side of the side wall 13 by bonding or other means and arranged at intervals in the front-to-back direction. The first limit block 16 and the second limit block 15 can both be provided with threaded holes, and the front and rear ends of the sliding rod 3 on the corresponding side can be respectively connected and fixed to the first limit block 16 and the second limit block 15 by threaded assembly.

[0061] On the one hand, this facilitates the assembly and installation of the slide rod 3. On the other hand, the first limit block 16 and the second limit block 15 can also play a role of limiting constraint, that is, the limit blocks can stop the sliding member 4 and the elastic member 5, thereby ensuring the structural stability of the assembly.

[0062] In some embodiments, one end of the elastic member 5 adjacent to the first limit block 16 is fixedly connected to the first limit block 16, and the other end is fixedly connected to the sliding member 4 adjacent to the first limit block 16; one end of the elastic member 5 adjacent to the second limit block 15 is fixedly connected to the second limit block 15, and the other end is fixedly connected to the sliding member 4 adjacent to the second limit block 15.

[0063] For example, the rear end of the rearmost elastic member 5 on each slide bar 3 can be welded to the second limit block 15, and the front end can be welded to the rearmost sliding member 4. The front end of the frontmost elastic member 5 on each slide bar 3 can be welded to the first limit block 16, and the rear end can be welded to the frontmost sliding member 4.

[0064] Therefore, when the connecting rod pad 2 pushes the rearmost sliding member 4 forward, the rearmost elastic member 5 on each sliding rod 3 can also be stretched to store energy, thereby avoiding the situation where the rearmost elastic member 5 is idle.

[0065] In some embodiments, two inclined surfaces 41 are provided on the top side of the sliding member 4 , each inclined surface 41 is arranged to tilt downward along a direction from the middle of the sliding member 4 to the end of the sliding member 4 , and the shielding member 6 is connected and fixed to the inclined surface 41 .

[0066] For example, Figure 1 As shown, one of the two inclined surfaces 41 on the top side of the sliding member 4 can be located in the left half of the sliding member 4, and the inclined surface 41 can be arranged generally tilted downward along the direction from the upper right to the lower left, and the other inclined surface 41 can be located in the right half of the sliding member 4, and the inclined surface 41 can be arranged generally tilted downward along the direction from the upper left to the lower right.

[0067] The shielding member 6 can be bonded and fixed to the two inclined surfaces 41 of each sliding member 4 by polyurethane glue. The setting of the inclined surfaces 41 can form a slope structure on the top of the sliding member 4, thereby facilitating the coal gangue and the like to slide off the shielding member 6.

[0068] In some embodiments, there are multiple shielding members 6, and the multiple shielding members 6 are arranged at intervals along the extension direction of the sliding rod 3, and each shielding member 6 is connected between the connecting rod pad 2 and the sliding member 4, or between two adjacent sliding members 4, or between the sliding member 4 and the intermediate pad 111.

[0069] For example, Figure 3 and Figure 4As shown, the multiple shielding members 6 can all be in the shape of long strips and arranged in sequence along the front-to-back direction. The front edge of the rearmost shielding member 6 can be bonded and fixed to the upper surface of the rearmost sliding member 4, and the rear edge of the rearmost shielding member 6 can be bonded and fixed to the upper surface of the connecting rod pad 2. The front edge of the frontmost shielding member 6 can be bonded and fixed to the frontmost intermediate pad 111, and the rear edge of the frontmost shielding member 6 can be bonded and fixed to the upper surface of the frontmost sliding member 4. The remaining shielding members 6 can be bonded between the upper surfaces of two adjacent sliding members 4. As a result, the width dimension of the shielding member 6 in the front-to-back direction can adapt to changes in different spacings, which facilitates the installation and arrangement of the shielding member 6.

[0070] In some embodiments, the slider 4 is provided with guide holes. For example, the left and right ends of each slider 4 can be bored and chamfered, and the resulting hole-like structure serves as the guide hole. The diameter of the guide hole is smaller than the diameter of the elastic member 5, thereby preventing the elastic member 5 from moving along the guide hole and ensuring the structural stability of the assembled elastic member 5.

[0071] The hydraulic support according to an embodiment of the present invention is described below.

[0072] A hydraulic support according to an embodiment of the present invention includes a base housing, a support connecting rod, and a protective device. The protective device may be a hydraulic support base space protection device as described in any of the aforementioned embodiments. An intermediate cushion layer 111 is placed above the base housing, and the support connecting rod is connected to the connecting rod cushion layer 2. Specifically, the hydraulic support may be a top coal caving support. The protective device provides a shielding and protective function, preventing gangue from falling into the unused space of the base housing. Furthermore, the sliding member 4, shielding member 6, and other components of the protective device can also be adaptively adjusted in accordance with the operation of the support connecting rod, fully satisfying the protective requirements.

[0073] A protective device according to a specific example of the present invention is described below.

[0074] The protective device of the embodiment of the present invention includes a shaft 14, a first side pad 12, a base pad 11, a connecting rod pad 2, a first limit block 16, a second limit block 15, a sliding rod 3, a sliding member 4, a spring (elastic member 5) and a cover cloth (shielding member 6).

[0075] The shaft 14 is fixedly connected to the first side cushion 12, and the base cushion 11 includes three parts: left, right and rear cushions, which are an integrated structure, wherein the left and right cushions of the base cushion 11 respectively constitute a second side cushion 112. The connecting rod cushion 2 is tangent to the shaft 14 and can move freely around the shaft 14 without fixed constraints. The materials of the above cushions are all rubber cushioning materials with moderate hardness, wear resistance and aging resistance. The outer surface of the cushion is made of a strong magnetic material, so that the corresponding cushion can be tightly adsorbed with the base box, the rear connecting rod contact surface, etc., and there is no gap when adsorbed and connected, and installation and disassembly are simple.

[0076] The first and second stoppers 16, 15 are located above and to the left of the first side cushion 12 and the base cushion 11, respectively. Furthermore, the first and second stoppers 16, 15 are drilled and tapped, and the ends of the slide rod 3 are connected to the first and second stoppers 16, 15, respectively, via threads, thereby achieving good self-locking properties and high connection strength.

[0077] The lower corners of each slider 4 are bored and chamfered to form guide holes. The two slide bars 3 are equipped with several sliders 4, allowing for free, unobstructed sliding between the two slide bars 3 and each slider 4. Springs are secured between the adjacent end surfaces of the second stopper 15, the slider 4, and the first stopper 16. The springs are compressed or stretched as the sliders 4 move.

[0078] This protective device is equipped with several springs and several sliders 4. The following description uses six springs and five sliders 4 as an example. The six springs, from back to front, are the first spring, the second spring, the third spring, the fourth spring, the fifth spring, and the sixth spring. The inner diameter of each spring must be larger than the bore diameter of the slider 4. The five sliders 4, from back to front, are the first slider, the second slider, the third slider, the fourth slider, and the fifth slider.

[0079] The first spring is located between the second stopper 15 and the first slider, with a spring constant of K1 and an original spring length of L1. The second spring is located between the first and second sliders, with a spring constant of K2 and an original spring length of L2. The third spring is located between the second and third sliders, with a spring constant of K3 and an original spring length of L3. The fourth spring is located between the third and fourth sliders, with a spring constant of K4 and an original spring length of L4. The fifth spring is located between the fourth and fifth sliders, with a spring constant of K5 and an original spring length of L5. The sixth spring is located between the fifth slider and the first stopper 16, with a spring constant of K0 and an original spring length of L0. In actual practice, the spring constants and original lengths of the springs can be adjusted and selected as needed.

[0080] The top of the slider 4 can be cut into a bevel 41, creating a defined slope. Cloths are positioned between adjacent sliders 4, between the slider 4 and the connecting rod pad 2, and between the slider 4 and the base pad 11. These cloths can be bonded with polyurethane adhesive, resulting in a strong bond and ensuring impact resistance. The cloths can be made of a rubber or fiber composite material, offering a smooth surface, excellent elasticity, and wear resistance.

[0081] During processing, the shaft 14, first side cushion 12, and base cushion 11 can be bonded together using polyester adhesive. The outer surface of the resulting integrated structure can be made of a highly magnetic material, allowing it to fit tightly with the base housing of a hydraulic support. The vertical section of the connecting rod cushion 2 (which can be considered the rear end surface of the connecting rod cushion 2) is made of a highly magnetic material, allowing it to automatically engage with the rear connecting rod (support connecting rod) of the hydraulic support. During use, the shaft 14, first side cushion 12, base cushion 11, and connecting rod cushion 2 form a primary protective structure. In other embodiments, the connecting rod cushion can also be hingedly connected to the support connecting rod.

[0082] During processing, a sliding member 4 can be welded between each of the first, second, third, fourth, fifth, and sixth springs. This ensures that each sliding member 4 is welded to its corresponding elastic member 5, ensuring structural stability. During welding, ensure that the central axis of the spring is coaxial with the center of the bored hole of the sliding member 4.

[0083] Then, the slide rod 3 can be inserted into the guide holes of the multiple springs and the multiple sliding members 4. The two ends of the slide rod 3 are respectively connected to the first limit block 16 and the second limit block 15 by threads for easy assembly. The contact surface between the first spring and the second limit block 15, and the contact surface between the sixth spring and the first limit block 16 are welded and fixed. The bottom surfaces of the second limit block 15 and the first limit block 16 are bonded to the upper surface of the first side cushion layer 12 and the base cushion layer 11 with polyester glue. At the same time, polyester glue is used to bond the cover cloth to the upper inclined surface 41 of the sliding member 4, the connecting rod cushion layer 2 and the base cushion layer 11. The second limit block 15, the first limit block 16, the slide rod 3, the sliding member 4, the multiple springs, and the cover cloth form a secondary protection structure.

[0084] In use, the structure of the protection device operates as follows:

[0085] 1. Hydraulic support posture adjustment (rear connecting rod pushes forward)

[0086] When the hydraulic support adjusts its posture (the rear connecting rod pushes forward), the rear connecting rod will drive the connecting rod pad 2 to rotate (forward) around the shaft 14 until it contacts the first sliding member (the sliding member 4 between the first spring and the second spring). At this time, the cover cloth between the connecting rod pad 2 and the first sliding member will bend and sink.

[0087] As the connecting rod pad 2 pushes the first sliding part forward, the first spring will stretch and accumulate elastic potential energy (tensile potential energy), and the second, third, fourth, fifth and sixth springs will be compressed and accumulate elastic potential energy (compressive potential energy), and the cloth between the sliding parts 4 will be slightly sunken in this process.

[0088] As the connecting rod pad 2 pushes the first sliding member to continue moving forward, the first spring continues to stretch and accumulates tensile elastic potential energy, the second, third, fourth, fifth and sixth springs will continue to be compressed, and the curtains between the sliding members 4 will continue to sink.

[0089] When the connecting rod pad 2 pushes the first sliding part to continue moving forward, the first spring continues to stretch and accumulate tensile potential energy, and the second, third, fourth, fifth and sixth springs are continuously compressed to the elastic limit (maximum compression potential energy), and the cloth between each sliding part 4 sinks to the maximum value, and the distance between each sliding part 4 is the smallest, forming a "sliding part slope", and the coal (gangue) between the frames slides after contact, and the fine coal (gangue) powder falls into the sunken groove of the cloth and accumulates.

[0090] 2. Hydraulic support posture adjustment (pull the rear link back)

[0091] When the hydraulic support adjusts its posture (the rear connecting rod is pulled backward), the rear pull rod will drive the connecting rod pad 2 to rotate around the shaft 14 (backward), the elastic potential energy (tensile potential energy) accumulated in the first spring is released, driving the first sliding member to move backward, and the elastic potential energy (compression potential energy is the largest) of the second, third, fourth, fifth and sixth springs is released, and the curtains between the sliding members 4 begin to be pulled.

[0092] When the connecting rod pad 2 continues to move backward, the elastic potential energy (tensile potential energy) accumulated by the first spring continues to be released, and the elastic potential energy (compression potential energy) of the second, third, fourth, fifth and sixth springs continue to be released, and the curtains between the sliding parts 4 continue to be stretched and tightened.

[0093] When the connecting rod pad 2 continues to move backward, the elastic potential energy (tensile potential energy) accumulated in the first spring is completely released, the first spring returns to its original length, the elastic potential energy (compression potential energy) of the second, third, fourth, fifth and sixth springs are completely released, the second, third, fourth, fifth and sixth springs return to their original lengths, and the cloths between the sliding parts 4 are stretched and tightened to form a "cloth slope". The coal (gangue) that leaks between the frames falls on the cloth slope and slides down. At the same time, the fine coal (gangue) accumulated in the sunken state of the cloth slides down along the cloth slope, realizing the coal (gangue) self-cleaning function.

[0094] In particular, when this device plays the role of preventing coal (gangue) from falling and falling into the box space where the connecting rod and the base are hinged after the support, it forms a primary protection structure and a secondary protection structure in structure.

[0095] The secondary protective structure enables self-cleaning of coal (gangue) during hydraulic support posture adjustment. This corresponds to the rear link's forward push and rearward pull motions, forming a "slider slope," a "slider slope-cloak slope," and a "cloak slope" depending on the rear link's motion. This effectively utilizes the secondary protective structure to prevent coal (gangue) from entering the base box.

[0096] "Sliding part inclined surface" state: After the coal (gangue) falls on the upper inclined surface of the sliding part or bounces off or slides, the fine coal (gangue) powder will fall into the groove formed between the sunken cover cloths and accumulate;

[0097] In the "cloth slope" state: the coal (gangue) falls on the surface of the cloth or bounces off or slides down, and the fine coal (gangue) powder slides down along the slope of the cloth.

[0098] In the "sliding member slope-cloth cover slope" state: this state is in the process of mutual movement and transformation between the "sliding member slope" and "cloth cover slope" states, and the coal (gangue) will slide down along the sliding member slope-cloth cover slope.

[0099] Among them, the flexible cushion layer of the primary protection structure can act as a flexible medium to completely isolate the contact between the coal (gangue) and the hydraulic support base box and the rear connecting rod, and protect the surface paint. At the same time, it prevents and avoids the damage to the base box caused by accidental falling coal (gangue). Specifically, in actual use, larger coal gangue will fall on the inclined surface of at least two sliding parts, and each sliding part will absorb the impact energy of the coal gangue. The impact energy will be transmitted to the first side cushion layer and the second side cushion layer through the two sliding rods, the first limit block and the second limit block. Since the first side cushion layer and the second side cushion layer are made of elastic material, the first side cushion layer and the second side cushion layer will absorb and buffer the impact energy, so that the protection device has an active pressure-relieving buffering process, and also reduces the impact on the bottom side of the base box, etc.

[0100] In the description of the present invention, it should be understood that 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0101] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0102] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0103] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0104] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0105] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. A hydraulic support base space protection device, characterized in that: include: A base body, the base body comprising two oppositely arranged side walls and an intermediate cushion layer provided between the two side walls; A connecting rod pad layer, the connecting rod pad layer is provided between the two side walls and is arranged opposite to the middle pad layer, the bottom side of the connecting rod pad layer is rotatably connected to the base, and the connecting rod pad layer is used to be connected to the bracket connecting rod; Two sliding rods, the two sliding rods are respectively arranged above the two side walls and extend in the opposite directions of the middle pad and the connecting rod pad; a plurality of sliding members and a plurality of elastic members, wherein the plurality of sliding members are spaced apart along the extending direction of the sliding rods, and each of the sliding members is slidably assembled with two of the sliding rods, and each of the sliding rods is sleeved with a plurality of the elastic members, and the plurality of the elastic members on each of the sliding rods are alternately arranged with the plurality of sliding members; The shielding member is deformable and covers the plurality of sliding members, the base body, and the connecting rod pad layer, and the shielding member is connected to the plurality of sliding members, the middle pad layer, and the connecting rod pad layer.

2. The hydraulic support base space protection device according to claim 1, characterized in that: When the support connecting rod pushes the connecting rod pad toward the middle pad, the connecting rod pad fits against the sliding member adjacent to the connecting rod pad, the plurality of sliding members approach each other and slide toward one side of the middle pad, the shielding member bends and sinks to form a plurality of grooves, and the plurality of elastic members deform and store energy; When the support link pulls the link pad away from the middle pad, the plurality of sliding members move away from each other and slide toward one side of the link pad, the shielding member is stretched and tightened, and the plurality of elastic members release elastic potential energy and reset.

3. The hydraulic support base space protection device according to claim 1, characterized in that: The base includes two first side pads and a base pad, the base pad includes two second side pads and the middle pad, the middle pad is connected to one side of the two second side pads, the other side of each second side pad is connected to one first side pad respectively, and the first side pad and the second side pad connected to the first side pad form a whole that constitutes the side wall.

4. The hydraulic support base space protection device according to claim 3, characterized in that: The base pad layer, the connecting rod pad layer, and the two first side pad layers are all made of elastic buffering materials, and the outer surfaces of the base pad layer, the connecting rod pad layer, and each of the first side pad layers are provided with a magnetic layer for magnetic attraction and fixation.

5. The hydraulic support base space protection device according to claim 3, characterized in that: The intermediate pad layer and the connecting rod pad layer are arranged opposite to each other in the extending direction of the sliding rod, and the distance between the intermediate pad layer and the connecting rod pad layer gradually decreases from top to bottom; The base includes a shaft body, which extends in relative directions along the two side walls. One end of the shaft body is connected to the bottom of the connection between the first side pad layer and the second side pad layer of one side wall, and the other end of the shaft body is connected to the bottom of the connection between the first side pad layer and the second side pad layer of the other side wall. The bottom side of the connecting rod pad layer is rotatably connected to the shaft body.

6. The hydraulic support base space protection device according to claim 1, characterized in that: A first limit block and a second limit block are provided on the top side of each side wall, and the first limit block and the second limit block are arranged at intervals in the extension direction of the sliding rod. Each sliding rod is connected between the first limit block and the second limit block, and multiple sliding members are located between the first limit block and the second limit block.

7. The hydraulic support base space protection device according to claim 6, characterized in that: One end of the elastic member adjacent to the first limit block is fixedly connected to the first limit block, and the other end is fixedly connected to the sliding member adjacent to the first limit block. One end of the elastic member adjacent to the second limit block is fixedly connected to the second limit block, and the other end is fixedly connected to the sliding member adjacent to the second limit block.

8. The hydraulic support base space protection device according to claim 1, characterized in that: Two inclined surfaces are provided on the top side of the sliding member, each of the inclined surfaces is arranged obliquely downward along a direction from the middle of the sliding member to the end of the sliding member, and the shielding member is connected and fixed to the inclined surface.

9. The hydraulic support base space protection device according to any one of claims 1 to 8, characterized in that: There are multiple shielding members, and the multiple shielding members are arranged at intervals along the extension direction of the sliding rod, and each shielding member is connected between the connecting rod pad and the sliding member, or between two adjacent sliding members, or between the sliding member and the intermediate pad; And / or, a guide hole is provided on the sliding member, and the diameter of the guide hole is smaller than the diameter of the elastic member.

10. A hydraulic support, characterized in that: It comprises a base box, a support connecting rod and a hydraulic support base space protection device as described in any one of claims 1 to 9 above, wherein the intermediate cushion layer is placed above the base box, and the support connecting rod is connected to the connecting rod cushion layer.

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