Movable blasting driving rock roadway temporary supporting device

Abstract

The utility model relates to the technical field of supporting equipment, in particular to a movable blasting driving rock roadway temporary supporting device which comprises a front supporting leg assembly, a top supporting support assembly, a side supporting support assembly, a support lifting assembly and a bearing assembly. A frame formed by the top supporting support assembly and the side supporting support assembly supports the top of a roadway, the support lifting assembly adjusts the height of the top supporting support assembly, the position adjusting plate is connected with the adjusting plate through bolts, and then the supporting angle of the side supporting support assembly is adjusted. In this way, a safe and reliable working space is provided for operators, the defects of a simple forepoling bar are overcome, the temporary supporting strength is multiplied, rapid supporting is achieved, meanwhile, the function of rapidly entering and exiting a head-on before and after blasting is achieved, the tunneling speed of a blasting driving face is greatly increased, and the working efficiency is improved. And great safety benefits and economic benefits are brought to mines.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting equipment, in particular to a mobile temporary supporting device for blasting rock tunnels. Background Art

[0002] In tunnel excavation, if there is no timely support at the head, once the roof is broken, the large rocks on the roof are prone to fall when the mine pressure comes, which may seriously affect the personal safety of underground workers. In order to prevent the falling of coal gangue from the roof, temporarily maintain the stability of the surrounding rock and protect the safety of the site, most mining companies are using front exploration beams. At present, the front exploration beams used at the head are mostly made of steel pipes along the direction of tunnel excavation, and are hung under the first, second, and third rows of anchor rods closest to the head with lifting rings. After each excavation, the front exploration beam must be reinstalled, which is not only time-consuming and labor-intensive, but also has a serious impact on the excavation speed.

[0003] The existing support equipment takes a long time for construction workers to install, which affects the excavation efficiency. In addition, the support process is dangerous and easily increases the labor intensity of construction workers. Utility Model Content

[0004] The purpose of the utility model is to provide a mobile temporary support device for blasting rock tunnels, aiming to solve the problems that the existing support equipment takes a long time for construction workers to install, affecting the excavation efficiency, and has certain risks during the support process, which easily increases the labor intensity of construction workers.

[0005] To achieve the above-mentioned purpose, the utility model provides a mobile temporary support device for blasting rock tunnels, including a front support leg assembly, a top support bracket assembly, a side support bracket assembly, a bracket lifting assembly and a bearing assembly, the side support bracket assembly is provided with a joint, the top support bracket assembly is rotatably connected to the joint, the top support bracket assembly is rotatably connected to the front support leg assembly, the side support bracket assembly is provided with a position adjustment plate, the top support bracket assembly is provided with an adjustment plate, the position adjustment plate is bolted to the adjustment plate, the bracket lifting assembly is arranged on one side of the side support bracket assembly, and the bearing assembly is arranged on one side of the side support bracket assembly.

[0006] Among them, the front leg assembly includes a column and a front leg lower support cylinder, the column is arranged on one side of the top support bracket assembly, the column has a C-shaped groove, the front leg lower support cylinder is fixedly connected to the column and is located at the bottom of the C-shaped groove.

[0007] Among them, the top support bracket assembly includes a first channel steel bent tube and a first square steel tube, the first channel steel bent tube is arranged on one side of the column, the first square steel tube is fixedly connected to the first channel steel bent tube and is located on one side of the first channel steel bent tube.

[0008] Wherein, the support lifting assembly includes a main support rod, a lifting cylinder and an adjusting cylinder;

[0009] The top ends of the top support bracket assembly are respectively welded with a first mounting bracket and a second mounting bracket, the first mounting bracket is fixedly connected to the adjusting oil cylinder, and the second mounting bracket is fixedly connected to the bracket lifting assembly;

[0010] A third mounting bracket and an adjustment plate are respectively welded to the ends of the top support bracket assembly, and a leg actuating cylinder is arranged on the third mounting bracket, one end of the leg actuating cylinder is connected to the front leg lower supporting cylinder, and the other end of the leg actuating cylinder is connected to the front leg assembly, and the adjustment plate is connected to the side support bracket assembly.

[0011] Wherein, the side support bracket assembly includes a second channel steel bent tube and a second square steel tube, the second square steel tube is fixedly connected to the second channel steel bent tube and is located on one side of the second channel steel bent tube;

[0012] A fourth mounting support is welded to the front end of the bearing assembly, and the fourth mounting support is provided with the main support rod;

[0013] A connecting support is welded to the tail of the bearing assembly, a pulley assembly connecting plate is welded to the upper portion of the bearing assembly, and a fifth mounting support is welded to the lower portion of the bearing assembly.

[0014] Wherein, the support lifting assembly is rotatably connected to the lifting cylinder, the tail of the support lifting assembly is connected to the first mounting support, and the front upper part of the support lifting assembly is connected to the second mounting support.

[0015] Wherein, one end of the adjusting oil cylinder is connected to the first mounting support, and the other end of the adjusting oil cylinder is connected to the front end of the main support rod;

[0016] One end of the lifting cylinder is connected to the fifth mounting support, and the other end of the lifting cylinder is connected to the middle part of the main support rod.

[0017] The utility model discloses a mobile temporary support device for blasting rock tunnel, the front support leg assembly is placed at the head of the tunnel, the frame formed by the top support bracket assembly and the side support bracket assembly supports the top of the tunnel, the bracket lifting assembly adjusts the height of the top support bracket assembly, the position adjustment plate is connected to the adjustment plate by bolts, and then the support angle of the side support bracket assembly is adjusted, the top support bracket assembly and the side support bracket assembly are connected by the rotating shaft of the joint, and the support frame is quickly deployed in this way, so as to carry out safe, timely and rapid temporary support for the empty top area in front of the excavation face, and the device has a large initial support force, which not only provides a safe and reliable working space for the operating personnel, but also solves the shortcomings of the simple front exploration beam, and will double the temporary support strength. While realizing rapid support, the device has the function of quickly entering and exiting the head before and after blasting, which greatly improves the excavation speed of the blasting working face and brings greater safety and economic benefits to the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 It is an overall structural schematic diagram of a mobile temporary support device for blasting rock tunnels of the utility model.

[0020] Figure 2 The utility model is a schematic structural diagram of a front support leg assembly of a mobile temporary support device for blasting rock tunnel.

[0021] Figure 3 The utility model is a schematic structural diagram of a top support bracket assembly of a mobile temporary support device for blasting rock tunnel.

[0022] Figure 4 It is a front view of a side support bracket assembly of a mobile temporary support device for blasting rock tunnel of the utility model.

[0023] Figure 5 It is a left view of a side support bracket assembly of a mobile temporary support device for blasting rock tunnel of the utility model.

[0024] Figure 6 The utility model is a structural schematic diagram of the main support rod of the mobile temporary support device for blasting rock tunnel.

[0025] Figure 7 The utility model is a schematic structural diagram of a jacking cylinder of a mobile temporary support device for blasting rock tunnel.

[0026] Figure 8 The utility model is a schematic structural diagram of an adjusting oil cylinder of a mobile temporary support device for blasting rock tunnel.

[0027] Fig. 9 It is a structural schematic diagram of the bearing assembly of the mobile temporary support device for blasting rock tunnel of the utility model.

[0028] 101-front outrigger assembly, 102-top support bracket assembly, 103-side support bracket assembly, 104-bracket lifting assembly, 105-bearing assembly, 106-column, 107-front outrigger lower support cylinder, 108-first channel steel bending pipe, 109-first square steel pipe, 110-first mounting support, 111-second mounting support, 112-third mounting support, 113-adjustment plate, 114-main support rod, 115-lifting cylinder, 116-adjustment cylinder, 117-second channel steel bending pipe, 118-second square steel pipe, 119-fourth mounting support, 120-connection support, 121-wheel assembly connecting plate, 122-fifth mounting support, 123-C-shaped groove, 124-position adjustment plate, 125-joint, 126-outrigger action cylinder. DETAILED DESCRIPTION

[0029] See also Figures 1 to 9 ,in, Figure 1 It is a schematic diagram of the overall structure of the mobile temporary support device for blasting rock tunnels of the utility model. Figure 2 This is a structural schematic diagram of the front leg assembly of the mobile temporary support device for blasting rock tunnels of the utility model. Figure 3 This is a structural schematic diagram of the top support bracket assembly of the mobile temporary support device for blasting rock tunnel of the utility model. Figure 4 This is a front view of the side support bracket assembly of the mobile temporary support device for blasting rock tunnel of the utility model. Figure 5 This is a left view of the side support bracket assembly of the mobile temporary support device for blasting rock tunnel of the utility model. Figure 6 This is a structural schematic diagram of the main support rod of the mobile temporary support device for blasting rock tunnels of the utility model. Figure 7 This is a structural schematic diagram of the jacking cylinder of the mobile temporary support device for blasting rock tunnels of the utility model. Figure 8 This is a structural schematic diagram of the adjusting cylinder of the mobile temporary support device for blasting rock tunnel of the utility model. Fig. 9 It is a structural schematic diagram of the bearing assembly of the mobile temporary support device for blasting rock tunnel of the utility model.

[0030] The utility model provides a mobile temporary support device for blasting rock tunnel, including a front leg assembly 101, a top support bracket assembly 102, a side support bracket assembly 103, a bracket lifting assembly 104 and a bearing assembly 105, wherein the front leg assembly 101 includes a column 106 and a front leg lower support cylinder 107, the top support bracket assembly 102 includes a first channel steel bending pipe 108, a first square steel pipe 109, a first mounting support 110, a second mounting support 111, a third mounting support 112, an adjustment plate 11 3 and outrigger actuating cylinder 126, the support lifting assembly 104 includes a main support rod 114, a lifting cylinder 115 and an adjusting cylinder 116, the side support support assembly 103 includes a second channel steel bending pipe 117, a second square steel pipe 118, a fourth mounting support 119, a position adjustment plate 124 and a joint 125, the bearing assembly 105 is welded with a fourth mounting support 119, a connecting support 120, a wheel assembly connecting plate 121 and a fifth mounting support 122, and the column 106 has a C-shaped groove 123.

[0031] According to this specific embodiment, the side support bracket assembly 103 is provided with a joint 125, the top support bracket assembly 102 is rotatably connected to the joint 125, the top support bracket assembly 102 is rotatably connected to the front leg assembly 101, the side support bracket assembly 103 is provided with a position adjustment plate 124, the top support bracket assembly 102 is provided with an adjustment plate 113, the position adjustment plate 124 is bolted to the adjustment plate 113, the bracket lifting assembly 104 is arranged on one side of the side support bracket assembly 103, the bearing assembly 105 is arranged on one side of the side support bracket assembly 103, the front leg assembly 101 is placed at the head of the tunnel, and the frame formed by the top support bracket assembly 102 and the side support bracket assembly 103 supports the top of the tunnel. The support lifting assembly 104 adjusts the height of the top support support assembly 102, the position adjustment plate 124 is connected to the adjustment plate 113 by bolts, and then adjusts the support angle of the side support support assembly 103, the top support support assembly 102 is connected to the side support support assembly 103 by the rotating shaft of the joint 125, and in this way, the support frame is quickly deployed to provide safe, timely and rapid temporary support for the empty top area in front of the excavation face, and has a large initial support force, which not only provides a safe and reliable working space for the operating personnel, but also solves the shortcomings of the simple front exploration beam, and will double the temporary support strength. While realizing rapid support, it has the function of rapid entry and exit before and after blasting, which greatly improves the excavation speed of the blasting working face and brings greater safety and economic benefits to the mine.

[0032] The beneficial effects of the device are mainly: using a pneumatic monorail crane as a carrier, on the basis of the existing front exploration beam support, adopting a strong protection concept, its main features are as follows: this type of mobile blasting rock tunnel temporary support device uses a pneumatic monorail crane as a carrier, so it can adapt to various complex terrains, and the speed of moving the bracket is fast; the entire temporary bracket relies on the hydraulic system during the adjustment process, the process is simple, the operation is convenient, and the underground construction personnel can master the operation skills in a short time; the contact between the top beam and the top plate is small, basically no contact, which reduces the damage to the top plate caused by repeated support of the top plate, and indirectly reduces the occurrence of roof collapse events; the entire temporary support The tunnel support area on the left and right sides of the frame can be adjusted, so it can adapt to tunnels with different cross-sectional forms; the entire temporary protective support can provide a safe working platform from the moment it enters the site, and the protection of construction personnel will not be interrupted due to other operations; the entire support adopts a frame structure with a small overall cross-sectional area, which does not affect ventilation problems during excavation; the support is small in size and will not affect the operator's line of sight during permanent support operations; it reduces labor intensity and replaces the manual installation of front exploration beam support, which indirectly speeds up the support speed and improves excavation efficiency; it has a high degree of mechanization and is controlled by a hydraulic system.

[0033] Among them, the column 106 is arranged on one side of the top support bracket assembly 102, and the column 106 has a C-shaped groove 123. The front leg lower support cylinder 107 is fixedly connected to the column 106 and is located at the bottom of the C-shaped groove 123. The front leg lower support cylinder 107 supports the column 106 to contact the ground.

[0034] Secondly, the first channel steel bending tube 108 is arranged on one side of the column 106, the first square steel tube 109 is fixedly connected to the first channel steel bending tube 108 and is located on one side of the first channel steel bending tube 108, the first square steel tube 109 is welded to form an arc steel frame and is fixedly connected to the first channel steel bending tube 108, the first mounting support 110 is used for the mounting adjusting cylinder 116, and the second mounting support 111 is used for the mounting bracket lifting assembly 104.

[0035] At the same time, the top of the top support bracket assembly 102 is respectively welded with a first mounting bracket 110 and a second mounting bracket 111, the first mounting bracket 110 is fixedly connected to the adjusting cylinder 116, the second mounting bracket 111 is fixedly connected to the bracket lifting assembly 104, and the ends of the top support bracket assembly 102 are respectively welded with a third mounting bracket 112 and an adjusting plate 113, the third mounting bracket 112 is provided with an outrigger actuating cylinder 126, one end of the outrigger actuating cylinder 126 is connected to the front outrigger lower supporting cylinder 107, the The other end of the outrigger actuating cylinder 126 is connected to the front outrigger assembly 101, the adjusting plate 113 is connected to the side support bracket assembly 103, the first mounting support 110 is used for installing the adjusting cylinder 116, the second mounting support 111 is used for installing the bracket lifting assembly 104, and the third mounting support 112 is connected to the front outrigger lower support cylinder 107 through the outrigger actuating cylinder 126, for adjusting the horizontal or vertical position of the front outrigger lower support cylinder 107; the adjusting plate 113 is used to connect the side support bracket assembly 103.

[0036] In addition, the second square steel pipe 118 is fixedly connected to the second channel steel bent pipe 117 and is located on one side of the second channel steel bent pipe 117. A fourth mounting bracket 119 is welded to the front end of the bearing assembly 105, and the fourth mounting bracket 119 is provided with the main support rod 114. A connecting bracket 120 is welded to the tail of the bearing assembly 105. A hanging wheel group connecting plate 121 is welded to the upper part of the bearing assembly 105, and a fifth mounting bracket 122 is welded to the lower part of the bearing assembly 105. The square steel pipes are welded to form an arc-shaped steel frame, and the side support bracket assembly 103 is connected to the side support bracket assembly 103 through the adjustment plate 1 13 adjusts the support range. The overall frame of the bearing assembly 105 is welded into a square by I-beams. The front end of the bearing assembly 105 is welded with the fourth mounting support 119. The fourth mounting support 119 is used to install the main support rod 114. The fifth mounting support 122 is used to install the jacking cylinder 115. The pneumatic monorail crane provides power for the entire device to move forward or backward. Four supporting cylinders are installed at the four corners of the bearing assembly 105 to ensure that the entire device does not shake after being supported. The bearing assembly 105 is slidably connected to the pneumatic monorail crane track by two sets of hanging wheel seats, and the hanging wheels can move on the monorail crane track.

[0037] Again, the rear portion of the bracket lifting assembly 104 is connected to the first mounting support 110 , the front upper portion of the bracket lifting assembly 104 is connected to the second mounting support 111 , and the bracket lifting assembly 104 is installed on both the first mounting support 110 and the second mounting support 111 .

[0038] Finally, one end of the adjusting cylinder 116 is connected to the first mounting support 110, the other end of the adjusting cylinder 116 is connected to the front end of the main support rod 114, one end of the lifting cylinder 115 is connected to the fifth mounting support 122, and the other end of the lifting cylinder 115 is connected to the middle part of the main support rod 114. The adjusting cylinder 116 is used to adjust the main support rod 114, and the lifting cylinder 115 is connected to the middle part of the main support rod 114 to play the role of lifting the top support bracket assembly 102.

[0039] When using the mobile temporary support device for blasting rock tunnel of the utility model, the frame formed by the top support bracket assembly 102 and the side support bracket assembly 103 supports the top of the tunnel, the bracket lifting assembly 104 adjusts the height of the top support bracket assembly 102, the position adjustment plate 124 is connected to the adjustment plate 113 by bolts, and then adjusts the support angle of the side support bracket assembly 103, the top support bracket assembly 102 is connected to the side support bracket assembly 103 by the rotating shaft of the joint 125, and the support frame is quickly deployed in this way to perform safe, timely and rapid temporary support for the empty top area in front of the excavation face, and has a large initial support force, which not only provides a safe and reliable working space for the operating personnel, but also solves the shortcomings of the simple front exploration beam, and will double the temporary support strength. While realizing rapid support, it has the function of rapid entry and exit before and after blasting, which greatly improves the excavation speed of the blasting working face and brings greater safety and economic benefits to the mine.

[0040] The above disclosure is only a preferred embodiment of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A mobile temporary support device for blasting rock tunnel, characterized in that: It includes a front outrigger assembly, a top support bracket assembly, a side support bracket assembly, a bracket lifting assembly and a bearing assembly; The side support bracket assembly is provided with a joint, and the top support bracket assembly is rotatably connected to the joint; The top support bracket assembly is rotatably connected to the front leg assembly; The side support bracket assembly is provided with a position adjustment plate, the top support bracket assembly is provided with an adjustment plate, and the position adjustment plate is connected with the adjustment plate by bolts; The support lifting assembly is arranged on one side of the side support support assembly; The bearing assembly is arranged on one side of the side supporting bracket assembly.

2. The mobile temporary support device for blasting rock tunnel according to claim 1, characterized in that: The front outrigger assembly includes a column and a front outrigger lower supporting cylinder. The column is arranged on one side of the top support bracket assembly. The column has a C-shaped groove. The front outrigger lower supporting cylinder is fixedly connected to the column and is located at the bottom of the C-shaped groove.

3. The mobile temporary support device for blasting rock tunnel according to claim 2, characterized in that: The top support bracket assembly includes a first channel steel bent tube and a first square steel tube. The first channel steel bent tube is arranged on one side of the column. The first square steel tube is fixedly connected to the first channel steel bent tube and is located on one side of the first channel steel bent tube.

4. The mobile temporary support device for blasting rock tunnel according to claim 3, characterized in that: The support lifting assembly includes a main support rod, a lifting cylinder and an adjusting cylinder; The top ends of the top support bracket assembly are respectively welded with a first mounting bracket and a second mounting bracket, the first mounting bracket is fixedly connected to the adjusting oil cylinder, and the second mounting bracket is fixedly connected to the bracket lifting assembly; A third mounting bracket and an adjustment plate are respectively welded to the ends of the top support bracket assembly, and a leg actuating cylinder is arranged on the third mounting bracket, one end of the leg actuating cylinder is connected to the front leg lower supporting cylinder, and the other end of the leg actuating cylinder is connected to the front leg assembly, and the adjustment plate is connected to the side support bracket assembly.

5. The mobile temporary support device for blasting rock tunnel according to claim 4, characterized in that: The side support bracket assembly includes a second channel steel bent tube and a second square steel tube, wherein the second square steel tube is fixedly connected to the second channel steel bent tube and is located on one side of the second channel steel bent tube; A fourth mounting support is welded to the front end of the bearing assembly, and the fourth mounting support is provided with the main support rod; A connecting support is welded to the tail of the bearing assembly, a pulley assembly connecting plate is welded to the upper portion of the bearing assembly, and a fifth mounting support is welded to the lower portion of the bearing assembly.

6. The mobile temporary support device for blasting rock tunnel according to claim 5, characterized in that: The support lifting assembly is rotatably connected to the lifting cylinder, the tail of the support lifting assembly is connected to the first mounting support, and the front upper part of the support lifting assembly is connected to the second mounting support.

7. The mobile temporary support device for blasting rock tunnel according to claim 6, characterized in that: One end of the adjusting oil cylinder is connected to the first mounting support, and the other end of the adjusting oil cylinder is connected to the front end of the main support rod; One end of the lifting cylinder is connected to the fifth mounting support, and the other end of the lifting cylinder is connected to the middle part of the main support rod.

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