Crawler-type hydraulic support

Abstract

The crawler-type hydraulic support comprises a base, a supporting beam, a telescopic stand column, a crawler mechanism and a lifting oil cylinder, and the supporting beam is provided with a supporting top face arranged upwards; the telescopic stand column is provided with two ends capable of relatively stretching in the vertical direction, one end of the telescopic stand column is connected with the base, and the other end of the telescopic stand column is connected with the supporting beam. The crawler mechanism is slidably connected with the base in the vertical direction, and the lifting oil cylinder is used for driving the crawler mechanism to slide relative to the base. According to the crawler-type hydraulic support, in the moving mode, the hydraulic support can move in a roadway through the crawler mechanism, moving is convenient, and a roadway bottom plate cannot be damaged; in the supporting mode, the stability of the hydraulic support in the supporting process is guaranteed through contact between the base and a roadway bottom plate, and therefore the roadway supporting effect and normal coal mining work are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel support equipment, and in particular to a crawler type hydraulic support. Background Art

[0002] In coal mining, advance tunnel support is a crucial step in ensuring safe progress at the coal face. Currently, there are two common methods for advance tunnel support: one employs single pillars combined with steel belts and anchor nets; the other employs step-by-step unit supports. These units are grouped together in pairs, each serving as a fulcrum. The unit supports are moved by extending and retracting the push cylinders between them.

[0003] Among the above-mentioned related technologies, the support method of single pillars combined with steel belts and anchor nets requires a large number of single pillars to be arranged, and the movement of the single pillars relies on manual handling, which is more troublesome to operate; and the step-by-step unit support is often difficult to adapt to the complex geological conditions of the tunnel, and it is easy to cause damage to the tunnel floor during movement, affecting the tunnel support effect and the normal progress of coal mining. 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 crawler-type hydraulic support. In the mobile mode, the crawler mechanism can be used to realize the movement of the hydraulic support in the tunnel, and the movement is relatively convenient without causing damage to the tunnel floor. In the support mode, the base is in contact with the tunnel floor to ensure the stability of the hydraulic support during the support process, thereby ensuring the tunnel support effect and the normal progress of coal mining.

[0006] The crawler-type hydraulic support of an embodiment of the present invention includes a base, a support beam, a crawler mechanism and a lifting cylinder; the support beam has a support top surface arranged upward; the telescopic column has two ends that can be relatively telescopic in the up and down directions, one end of the telescopic column is connected to the base, and the other end of the telescopic column is connected to the support beam; the crawler mechanism is slidably connected to the base in the up and down directions, and the lifting cylinder is used to drive the crawler mechanism to slide relative to the base.

[0007] In some embodiments, there are multiple telescopic columns.

[0008] In some embodiments, the base is connected to a guide seat, the guide seat has a guide hole, the crawler mechanism is connected to a guide rod, and the guide rod is slidably arranged in the guide hole.

[0009] In some embodiments, the crawler-type hydraulic support includes a first support frame and a second support frame. The first support frame is connected to the support beam, and the second support frame is connected to the first support frame. The first support frame has a first support surface arranged upward, and the second support frame has a second support surface arranged upward. The first support surface is flush with the second support surface. The dimension of the first support frame in the front-back direction of the crawler mechanism is greater than that of the second support frame in the front-back direction of the crawler mechanism, and the dimension of the second support frame in the left-right direction of the crawler mechanism is greater than that of the first support frame in the left-right direction of the crawler mechanism.

[0010] In some embodiments, the crawler-type hydraulic support further includes a support assembly, and the support assembly includes the base, the crawler mechanism, the telescopic column, the support beam, and the first support frame. The number of the support assemblies is two, and the two support assemblies are arranged at intervals in the left-right direction of the crawler mechanism. The second support frame includes a first connecting portion and a second connecting portion arranged at intervals in the left-right direction of the crawler mechanism, and the first connecting portion and the second connecting portion are respectively connected to the first support frames of the two support assemblies.

[0011] In some embodiments, the second support frame further includes an intermediate support portion, the intermediate support portion is arranged between the first connecting portion and the second connecting portion, and a lifting ring is connected to the intermediate support portion.

[0012] In some embodiments, the first support frame has an installation groove, and the second support frame is slidably arranged in the installation groove. The first support frame has a first positioning hole, and the second support frame has a second positioning hole. The crawler-type hydraulic support further includes a positioning shaft, and the positioning shaft is used to pass through the first positioning hole and the second positioning hole when the first positioning hole and the second positioning hole are aligned.

[0013] In some embodiments, the crawler-type hydraulic support further includes a support plate and a side push oil cylinder. The support plate is hinged to the support beam. The side push oil cylinder has two ends that can move relative to each other. One end of the side push oil cylinder is hinged to the support beam, and the other end of the side push oil cylinder is hinged to the support plate, so that the support plate can be switched between an unfolded state and a contracted state. The support plate has a third support surface, and when the support plate is in the unfolded state, the third support surface is flush with the support top surface.

[0014] In some embodiments, the number of the support plates is multiple.

[0015] In some embodiments, the crawler-type hydraulic support further includes a roof-breaking assembly. The roof-breaking assembly includes a roof-breaking plate and a plurality of roof-breaking cones. The roof-breaking plate is disposed above the support top surface and connected to the support beam. The roof-breaking cones are disposed above the roof-breaking plate and connected to the roof-breaking plate.

[0016] For the crawler-type hydraulic support according to the embodiment of the present invention, when the hydraulic support needs to be moved as a whole, the elevation cylinder is used to drive the crawler mechanism to move downward relative to the base until the bottom surface of the crawler mechanism is lower than the bottom surface of the base. The crawler mechanism abuts against the roadway floor and supports the base. At this time, the crawler mechanism can be used to drive the hydraulic support to move in the roadway. This is the moving mode of the hydraulic support. When the hydraulic support needs to support the roadway roof, the hydraulic support is moved to the area to be supported through the crawler mechanism. The elevation cylinder is used to drive the crawler mechanism to move upward relative to the base until the bottom surface of the base fits the roadway floor, so that the hydraulic support can be stably supported on the roadway floor. Then, the two ends of the telescopic column are controlled to move relatively away from each other to raise the support beam until the support top surface of the support beam abuts against the roadway roof, and the support of the roadway roof can be realized. This is the support mode of the hydraulic support.

[0017] For the crawler-type hydraulic support according to the embodiment of the present invention, the elevation cylinder can be used to control the switching between the moving mode and the support mode of the hydraulic support. In the moving mode, the crawler mechanism can be used to realize the movement of the hydraulic support in the roadway, and the movement is relatively convenient without damaging the roadway floor. In the support mode, by contacting the base with the roadway floor, the stability of the hydraulic support during the support process is ensured, thereby ensuring the roadway support effect and the normal progress of the coal mining work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a crawler-type hydraulic support according to an embodiment of the present invention.

[0019] Figure 2 is a schematic structural diagram of the crawler mechanism of a crawler-type hydraulic support according to an embodiment of the present invention.

[0020] Figure 3 is a schematic structural diagram of the base of a crawler-type hydraulic support according to an embodiment of the present invention.

[0021] Figure 4 is a schematic structural diagram of the second support frame of a crawler-type hydraulic support according to an embodiment of the present invention.

[0022] Figure 5 is a schematic structural diagram of the first support frame of a crawler-type hydraulic support according to an embodiment of the present invention.

[0023] Figure 6 is a schematic structural diagram of a crawler-type hydraulic support according to another embodiment of the present invention (the support plate is connected to the support beam).

[0024] Figure 7 It is a schematic structural diagram of a crawler-type hydraulic support according to another embodiment of the present invention (the roof-breaking assembly is connected to the support beam).

[0025] Figure 8 It is a schematic structural diagram of the roof-breaking assembly of a crawler-type hydraulic support according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 100, hydraulic support;

[0028] 1, base; 11, bottom frame; 111, receiving groove; 12, vertical frame; 13, fixing hoop; 14, guiding seat; 141, guiding hole; 15, first oil cylinder connecting seat;

[0029] 2, support beam; 21, support top surface; 22, first ear seat; 23, ear plate;

[0030] 3, telescopic column; 31, first column section; 32, second column section; 33, third column section;

[0031] 4, crawler mechanism; 41, crawler assembly; 411, frame body; 412, crawler; 413, second oil cylinder connecting seat; 42, connecting beam; 43, hydraulic pump station; 431, electro-hydraulic control valve group; 432, rear operation platform; 44, guide rod;

[0032] 5, lifting oil cylinder;

[0033] 61, control valve group; 62, front operation platform;

[0034] 71, first support frame; 711, first support surface; 712, second ear seat; 713, installation groove; 714, first positioning hole; 72, second support frame; 721, second support surface; 722, first connecting portion; 723, second connecting portion; 724, intermediate support portion; 7241, lifting ring; 725, second positioning hole;

[0035] 81, support plate; 811, third support surface; 82, side push oil cylinder;

[0036] 9, roof-breaking assembly; 91, roof-breaking plate; 92, roof-breaking cone. Detailed implementation manners

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0038] As Figures 1 to 3As shown, the crawler hydraulic support 100 of the embodiment of the present invention includes a base 1, a support beam 2, a telescopic column 3, a crawler mechanism 4 and a lifting cylinder 5. The support beam 2 has a support top surface 21 arranged upward; the telescopic column 3 has two ends that can be relatively telescopic along the up and down directions, one end of the telescopic column 3 is connected to the base 1, and the other end of the telescopic column 3 is connected to the support beam 2; the crawler mechanism 4 is slidably connected to the base 1 along the up and down directions, and the lifting cylinder 5 is used to drive the crawler mechanism 4 to slide relative to the base 1.

[0039] In the crawler-type hydraulic support 100 of the embodiment of the present invention, when the hydraulic support 100 needs to move as a whole, the lifting cylinder 5 is used to drive the crawler mechanism 4 to move downward relative to the base 1 until the bottom surface of the crawler mechanism 4 is lower than the bottom surface of the base 1. The crawler mechanism 4 stops at the tunnel floor and supports the base 1. At this time, the crawler mechanism 4 can drive the hydraulic support 100 to move in the tunnel. This is the movement mode of the hydraulic support 100. When the hydraulic support 100 needs to support the tunnel roof, the hydraulic support 100 is moved to the area to be supported by the crawler mechanism 4. The lifting cylinder 5 is used to drive the crawler mechanism 4 to move upward relative to the base 1 until the bottom surface of the base 1 is in contact with the tunnel floor, so that the hydraulic support 100 can be stably supported on the tunnel floor. Thereafter, the two ends of the telescopic column 3 are controlled to move relatively apart, the support beam 2 is raised, and when the support top surface 21 of the support beam 2 stops at the tunnel roof, the tunnel roof can be supported. This is the support mode of the hydraulic support 100.

[0040] The crawler-type hydraulic support 100 of the embodiment of the present invention can control the hydraulic support 100 to switch between the mobile mode and the support mode by raising the oil cylinder 5. In the mobile mode, the crawler mechanism 4 can be used to realize the movement of the hydraulic support 100 in the tunnel, and the movement is relatively convenient without causing damage to the tunnel floor; in the support mode, the base 1 is in contact with the tunnel floor to ensure the stability of the hydraulic support 100 during the support process, thereby ensuring the tunnel support effect and the normal progress of coal mining.

[0041] Specifically, if Figure 1 and Figure 2 As shown, the track mechanism 4 includes a connecting beam 42 and two track assemblies 41. The track assembly 41 includes a frame 411, track wheels and track 412. The front and rear ends of the frames 411 of the two track assemblies 41 are rigidly connected by the connecting beam 42. The track wheels are connected to the frame 411. The track 412 is wound around the track wheels. The track shoes of the track 412 are steel track shoes. The power unit of the track assembly 41 is a high-torque hydraulic motor. Two high-torque hydraulic motors are correspondingly provided for each track 412, which can provide sufficiently large driving force for the track assembly 41, thereby ensuring that the hydraulic support 100 can be easily moved in the tunnel.

[0042] The crawler mechanism 4 further includes a hydraulic pump station 43. The hydraulic pump station 43 is arranged on the upper side of the rear connecting beam 42 and is bolted to the connecting beam 42. The hydraulic pump station 43 uses a piston pump for liquid supply and is equipped with a fuel tank. The hydraulic pump station 43 is used to supply liquid to the hydraulic motors of the crawler mechanism 4. It uses special hydraulic oil as the transmission medium and is a closed hydraulic system. It can be operated locally or remotely, thereby ensuring the safe and reliable operation of the crawler mechanism 4.

[0043] In addition, hydraulic drive components such as the telescopic column 3 and the lifting oil cylinder 5 are supplied with liquid by the hydraulic pump station 43 on the roadway working face, so that the hydraulic system of the crawler mechanism 4 and the hydraulic systems of hydraulic drive components such as the telescopic column 3 and the lifting oil cylinder 5 are independent of each other, which can ensure the safe and reliable operation of the crawler mechanism 4 and each oil cylinder.

[0044] The hydraulic pump station 43 is correspondingly provided with an electro-hydraulic control valve group 431 and a rear operation platform 432. The electro-hydraulic control valve group 431 is arranged on the upper side of the hydraulic pump station 43, and the rear operation platform 432 is arranged on the rear side of the hydraulic pump station 43. The rear operation platform 432 includes a rear guardrail. When the operator stands on the rear operation platform 432 to operate the electro-hydraulic control valve group 431, the rear guardrail can ensure the safety of the operator.

[0045] As Figure 1 shown, the hydraulic systems of hydraulic drive components such as the telescopic column 3 and the lifting oil cylinder 5 are correspondingly provided with a control valve group 61 and a front operation platform 62. The front operation platform 62 is arranged on the upper side of the front connecting beam 42 and is fixedly connected to the connecting beam 42. The front operation platform 62 includes a front guardrail. The control valve group 61 is arranged on the upper side of the front operation platform 62. When the operator stands on the front operation platform 62 to operate the control valve group 61, the front guardrail can ensure the safety of the operator.

[0046] The telescopic column 3 is a column jack, which includes a first column section 31, a second column section 32, and a third column section 33 arranged in sequence from bottom to top. The second column section 32 is telescopic relative to the first column section 31, and the third column section 33 is telescopic relative to the second column section 32. The first column section 31 is fixedly connected to the base 1, and the third column section 33 is fixedly connected to the lower side of the support beam 2. By the telescopic column 3, the support beam 2 can be controlled to rise and fall to realize the support of the roadway roof.

[0047] In some embodiments, the number of telescopic columns 3 is multiple.

[0048] Specifically, as Figure 1 and Figure 3As shown, two telescopic columns 3 are correspondingly arranged for each base 1, and the two telescopic columns 3 are arranged at intervals in the front-back direction of the crawler mechanism 4; the base 1 includes a bottom frame 11, a vertical frame 12 and two fixing hoops 13. The bottom frame 11 has a frame groove with an upward opening. The vertical frame 12 is arranged at the middle position of the frame groove and divides the frame groove into two accommodating grooves 111. Both fixing hoops 13 are connected to the vertical frame 12 and are respectively arranged on the upper sides of the two accommodating grooves 111. The first column segments 31 of the two telescopic columns 3 are respectively fixedly connected to the vertical frame 12 through the two fixing hoops 13, and the lower ends of the first column segments 31 are arranged in the accommodating grooves 111, so that the fixed connection between the first column segments 31 and the base 1 can be realized.

[0049] The upper end of the third column segment 33 of the telescopic column 3 is fixedly connected to the lower side of the support beam 2.

[0050] Driving the support beam 2 to rise by multiple telescopic columns 3 and abutting against the roadway roof can improve the support effect on the roadway roof, thereby ensuring the normal progress of coal mining work.

[0051] In some embodiments, the base 1 is connected with a guide seat 14. The guide seat 14 has a guide hole 141. The crawler mechanism 4 is connected with a guide rod 44, and the guide rod 44 is slidably inserted into the guide hole 141.

[0052] Specifically, as Figures 1 to 3 shown, the base 1 is arranged between two crawlers 412. The guide seat 14 is fixedly connected to the side surface of the bottom frame 11 of the base 1. Two guide seats 14 are respectively arranged on both sides of the base 1 facing the two crawlers 412. The guide seat 14 has a guide hole 141 that penetrates up and down. The guide rod 44 extends in the vertical direction. The lower end of the guide rod 44 is fixedly connected to the frame body 411 of the crawler mechanism 4 through a support. The guide rod 44 corresponds to the guide seat 14 one by one and slidably passes through the guide hole 141, whereby the sliding connection between the crawler mechanism 4 and the base 1 can be realized.

[0053] As Figure 2 shown and as Figure 3 shown, a first oil cylinder connection seat 15 is fixedly connected to the side surface of the vertical frame 12 of the base 1. A second oil cylinder connection seat 413 is fixedly connected to the frame body 411 of the crawler mechanism 4. The cylinder body of the lifting oil cylinder 5 is hinged to the first oil cylinder connection seat 15, and the telescopic rod of the lifting oil cylinder 5 is hinged to the second oil cylinder connection seat 413. Two lifting oil cylinders 5 are correspondingly arranged for one crawler 412. The four lifting oil cylinders 5 can be used to control the rise and fall of the crawler mechanism 4, so that the hydraulic support 100 can be switched between the moving mode and the support mode.

[0054] In some embodiments, the crawler-type hydraulic support 100 further includes a first support frame 71 and a second support frame 72. The first support frame 71 is connected to the support beam 2, and the second support frame 72 is connected to the first support frame 71. The first support frame 71 has a first support surface 711 arranged upward, and the second support frame 72 has a second support surface 721 arranged upward. The first support surface 711 is flush with the second support surface 721. The dimension of the first support frame 71 in the front-rear direction of the crawler mechanism 4 is greater than that of the second support frame 72 in the front-rear direction of the crawler mechanism 4, and the dimension of the second support frame 72 in the left-right direction of the crawler mechanism 4 is greater than that of the first support frame 71 in the left-right direction of the crawler mechanism 4.

[0055] The telescopic column 3 is used to control the rise of the support beam 2, so that the first support surface 711 of the first support frame 71 and the second support surface 721 of the second support frame 72 simultaneously abut against the roadway roof, which can increase the support area of the roadway roof. At the same time, it can cooperate with support structures such as anchor nets and steel belts to achieve full coverage support of the roadway, improve the support effect, and ensure the normal progress of coal mining work.

[0056] Specifically, as Figure 1 and Figure 4 shown, the first support frame 71 is arranged on the upper side of the support beam 2. The first support frame 71 and the support beam 2 are connected by four ear plates 23. The four ear plates 23 are divided into two groups, and the two groups of ear plates 23 are respectively arranged on both sides of the support beam 2 in the left-right direction. Correspondingly, two first ear seats 22 are fixedly connected to both side surfaces of the support beam 2 arranged oppositely in the left-right direction, and two second ear seats 712 are fixedly connected to both side surfaces of the first support frame 71 arranged oppositely in the left-right direction. The second ear seats 712 correspond to the first ear seats 22 one by one. The second ear seats 712 are arranged on the upper side of the first ear seats 22. The first ear seats 22 have first ear holes, and the second ear seats 712 have second ear holes. The ear plate 23 has two through connection ear holes. Align the two connection ear holes of the ear plate 23 with the first ear hole and the second ear hole respectively. The connection between the ear plate 23 and the first ear seat 22 can be realized by passing a pin shaft through the connection ear hole and the first ear hole, and the connection between the ear plate 23 and the second ear seat 712 can be realized by passing a pin shaft through the connection ear hole and the second ear hole, so as to realize the connection between the first support frame 71 and the support beam 2.

[0057] In some embodiments, the crawler-type hydraulic support 100 further includes a support assembly. The support assembly includes the above-mentioned base 1, crawler mechanism 4, telescopic column 3, support beam 2 and first support frame 71. The number of support assemblies is two, and the two support assemblies are arranged at intervals in the left-right direction of the crawler mechanism 4. The second support frame 72 includes a first connection part 722 and a second connection part 723 arranged at intervals in the left-right direction of the crawler mechanism 4. The first connection part 722 and the second connection part 723 are respectively connected to the first support frames 71 of the two support assemblies.

[0058] Arrange the two support assemblies at intervals in the left - right direction and connect them through the second support frame 72. The second support frame 72 spans across the two support assemblies, thereby further increasing the support area, being suitable for large - area support, and being more conducive to achieving full - coverage support for the roadway.

[0059] Of course, in other embodiments, the number of support assemblies can also be set to more than two, and the second support frame 72 spans across more than two support assemblies to achieve the effect of improving the support effect.

[0060] In some embodiments, as Figure 5 shown, the second support frame 72 further includes an intermediate support portion 724. The intermediate support portion 724 is arranged between the first connection portion 722 and the second connection portion 723, and a suspension ring 7241 is connected to the intermediate support portion 724.

[0061] When it is necessary to lift and transport heavy objects, connect one end of the lifting chain to the suspension ring 7241 and the other end to the heavy object. Control the lifting and lowering of the second support frame 72 through the telescopic column 3, and move the crawler mechanisms 4 of the two support assemblies, thereby realizing the function of transporting heavy objects.

[0062] Specifically, as Figure 1 and Figure 4 shown, the second support frame 72 is welded by multiple sections of I - beams, which is more conducive to its cooperation with support structures such as anchor nets and steel belts to achieve full - coverage support for the roadway.

[0063] The second support frame 72 includes two long beams and multiple short beams. The two long beams are arranged in parallel, and the length direction of the long beams is consistent with the left - right direction of the crawler mechanism 4. The two ends of the two long beams respectively form the above - mentioned first connection portion 722 and second connection portion 723. The first connection portion 722 and the second connection portion 723 are respectively connected to the two first support frames 71, so that the second support frame 72 spans across the two support assemblies. The short beams are arranged at the middle positions between the two long beams, and the two ends of the short beams are respectively fixedly connected to the two long beams. The multiple short beams are arranged at intervals along the length direction of the long beams to form the above - mentioned intermediate support portion 724.

[0064] The number of suspension rings 7241 is multiple, and the multiple suspension rings 7241 are arranged on the lower side of the short beams and are welded and fixed to the short beams.

[0065] In some embodiments, the first support frame 71 has an installation groove 713, and the second support frame 72 is slidably arranged in the installation groove 713; the first support frame 71 has a first positioning hole 714, the second support frame 72 has a second positioning hole 725, and the crawler - type hydraulic support 100 further includes a positioning shaft, which is used to pass through the first positioning hole 714 and the second positioning hole 725 when the first positioning hole 714 and the second positioning hole 725 are aligned.

[0066] Pass the positioning shaft through the first positioning hole 714 and the second positioning hole 725, and the connection between the second support frame 72 and the first support frame 71 can be realized. Pull out the positioning shaft from the first positioning hole 714 and the second positioning hole 725, and the disassembly of the second support frame 72 from the first support frame 71 can be realized, thereby realizing the detachable installation of the support frame. Thus, when carrying out large-area roadway support, the two support assemblies can be moved to the area to be supported through the corresponding crawler mechanisms 4, and then the second support frame 72 is connected to the two first support frames 71, making the support operation more convenient.

[0067] Specifically, as Figure 1 , Figure 4 and Figure 5 shown, the first support frame 71 has two installation slots 713 penetrating in the left-right direction, and two long beams are respectively slidably arranged in the two installation slots 713; a plurality of positioning plates are fixedly connected to the first support frames 71 of the two support assemblies, the positioning plates have the above-mentioned first positioning holes 714, the second support frame 72 has a plurality of second positioning holes 725, align the plurality of first positioning holes 714 of the first support frame 71 with the plurality of second positioning holes 725 of the second support frame 72 one by one, and then use the positioning shaft to pass through the first positioning hole 714 and the second positioning hole 725, and the connection between the second support frame 72 and the first support frame 71 can be realized, and the operation is relatively convenient.

[0068] In some embodiments, the crawler hydraulic support 100 further includes a support plate 81 and a side push oil cylinder 82. The support plate 81 is hinged to the support beam 2. The side push oil cylinder 82 has two relatively movable ends. One end of the side push oil cylinder 82 is hinged to the support beam 2, and the other end of the side push oil cylinder 82 is hinged to the support plate 81, so that the support plate 81 can be switched between the deployed state and the retracted state; the support plate 81 has a third support surface 811. When the support plate 81 is in the deployed state, the third support surface 811 is flush with the support top surface 21.

[0069] In some embodiments, the number of support plates 81 is multiple.

[0070] Specifically, as Figure 6 shown, the number of support plates 81 is two, and the two support plates 81 are arranged oppositely along the left-right direction on both sides of the support beam 2; two of the above-mentioned first ear seats 22 are still fixedly connected to both side surfaces of the support beam 2 in the left-right direction, and the support plate 81 is hinged to the first ear seat 22; the side push oil cylinder 82 is arranged below the support plate 81, the cylinder body of the side push oil cylinder 82 is hinged to the side surface of the support beam 2, and the piston rod of the side push oil cylinder 82 is hinged to the lower side of the support plate 81. The support plate 81 can be driven to rotate relative to the support beam 2 through the side push oil cylinder 82.

[0071] When the third supporting surface 811 of the supporting plate 81 is flush with the supporting top surface 21, the supporting plate 81 is in the unfolded state. At this time, the telescopic column 3 is used to lift the supporting beam 2, so that the supporting top surface 21 and the third supporting surfaces 811 of the two supporting plates 81 both abut against the roadway roof, which can realize the support of the roadway roof and can increase the support area to achieve a more stable support effect on the roadway roof.

[0072] By rotating the supporting plate 81 downward, the supporting plate 81 can be switched to the contracted state, which is more conducive to the walking and moving of the hydraulic support 100 at this time.

[0073] Compared with the hydraulic support 100 composed of the above two supporting assemblies, this hydraulic support 100 is more flexible in movement while increasing the support area.

[0074] In some embodiments, the crawler-type hydraulic support 100 further includes a roof-breaking assembly 9. The roof-breaking assembly 9 includes a roof-breaking plate 91 and a plurality of roof-breaking cones 92. The roof-breaking plate 91 is arranged above the supporting top surface 21 and is connected to the supporting beam 2, and the roof-breaking cones 92 are arranged above the roof-breaking plate 91 and are connected to the roof-breaking plate 91.

[0075] When roof breaking is required, by telescoping the telescopic column 3, the roof-breaking assembly 9 can be driven to lift and lower to impact the area to be roof-broken, thereby realizing roof breaking.

[0076] Specifically, as Figure 7 and Figure 8 shown, the roof-breaking plate 91 is arranged above the supporting beam 2, and the connection manner between the roof-breaking plate 91 and the supporting beam 2 is the same as the connection manner between the first support frame 71 and the supporting beam 2, that is, the roof-breaking plate 91 and the supporting beam 2 are also connected by four ear plates 23; the roof-breaking cones 92 are fixedly welded to the roof-breaking plate 91, and the number of the roof-breaking cones 92 is multiple. A plurality of roof-breaking cones 92 are all arranged above the roof-breaking plate 91 and their tips face upward. The roof-breaking cones 92 are cast from ZG30Cr06 alloy steel material, with high hardness and good wear resistance, which is more conducive to realizing the roof-breaking operation.

[0077] Thus, for the crawler-type hydraulic support 100 of the embodiment of the present invention, different uses can be realized only by replacing the components connected to the supporting beam 2, such as various uses such as support, hoisting, and roof breaking. The applicable range is wider, which is convenient for production, manufacture, popularization and application.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation on the present invention.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0080] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0082] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0083] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A crawler-type hydraulic support, characterized in that, Comprising: Base; Support beam, the support beam having a support top surface arranged upward; Telescopic column, the telescopic column having two ends that can relatively telescopically move in the up and down direction, one end of the telescopic column being connected to the base, and the other end of the telescopic column being connected to the support beam; Track mechanism and lifting oil cylinder, the track mechanism being slidably connected to the base in the up and down direction, and the lifting oil cylinder being used to drive the track mechanism to slide relative to the base.

2. The crawler-type hydraulic support according to claim 1, wherein The number of the telescopic columns is multiple.

3. The crawler-type hydraulic support according to claim 1, characterized in that, The base is connected with a guide seat, the guide seat having a guide hole, the track mechanism is connected with a guide rod, and the guide rod is slidably disposed through the guide hole.

4. The crawler-type hydraulic support according to any one of claims 1-3, characterized in that, The crawler hydraulic support includes a first support frame and a second support frame, the first support frame being connected to the support beam, and the second support frame being connected to the first support frame; The first support frame has a first support surface arranged upward, the second support frame has a second support surface arranged upward, the first support surface is flush with the second support surface, the dimension of the first support frame in the front and rear direction of the track mechanism is greater than the dimension of the second support frame in the front and rear direction of the track mechanism, and the dimension of the second support frame in the left and right direction of the track mechanism is greater than the dimension of the first support frame in the left and right direction of the track mechanism.

5. The crawler-type hydraulic support according to claim 4, wherein The crawler hydraulic support further includes a support assembly, the support assembly including the base, the track mechanism, the telescopic column, the support beam, and the first support frame; The number of the support assemblies is two, the two support assemblies are arranged at intervals in the left and right direction of the track mechanism, the second support frame includes a first connecting portion and a second connecting portion arranged at intervals in the left and right direction of the track mechanism, and the first connecting portion and the second connecting portion are respectively connected to the first support frames of the two support assemblies.

6. The crawler-type hydraulic support according to claim 5, wherein, The second support frame further includes an intermediate support portion, the intermediate support portion being arranged between the first connecting portion and the second connecting portion, and the intermediate support portion is connected with a lifting ring.

7. The crawler-type hydraulic support according to claim 5, wherein, The first support frame has an installation groove, and the second support frame is slidably disposed in the installation groove; The first support frame has a first positioning hole, the second support frame has a second positioning hole, and the crawler hydraulic support further includes a positioning shaft, the positioning shaft being used to pass through the first positioning hole and the second positioning hole when the first positioning hole and the second positioning hole are aligned.

8. The crawler-type hydraulic support according to any one of claims 1-3, characterized in that, The crawler hydraulic support further includes a support plate and a side push oil cylinder, the support plate being hinged to the support beam, the side push oil cylinder having two ends that can relatively move, one end of the side push oil cylinder being hinged to the support beam, and the other end of the side push oil cylinder being hinged to the support plate, so that the support plate can be switched between an unfolded state and a contracted state; The support plate has a third support surface, and when the support plate is in the unfolded state, the third support surface is flush with the support top surface.

9. The crawler-type hydraulic support according to claim 8, wherein The number of the support plates is multiple.

10. The crawler-type hydraulic support according to any one of claims 1-3, characterized in that, The crawler-type hydraulic support further includes a roof-breaking assembly, the roof-breaking assembly includes a roof-breaking plate and a plurality of roof-breaking cones, the roof-breaking plate is arranged on the upper side of the supporting top surface and is connected to the supporting beam, and the roof-breaking cones are arranged on the upper side of the roof-breaking plate and are connected to the roof-breaking plate.

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