Rapid positioning arc-shaped plate welding equipment for tunnel construction

Abstract

The invention discloses arc-shaped plate welding equipment for tunnel construction with a rapid positioning function, and relates to the technical field of welding, the arc-shaped plate welding equipment comprises a welding supporting mechanism and a welding device mounted at the top of the welding supporting mechanism, and a movable supporting mechanism is arranged at the bottom of the welding supporting mechanism; lifting threaded supports are symmetrically arranged on the top of the movable supporting mechanism, the welding supporting mechanism comprises a supporting support, an adjusting motor is fixedly installed on one side of the interior of the supporting support, and the output end of the adjusting motor is fixedly connected with a first chain wheel transmission assembly. Adjusting two-way threaded rods are symmetrically connected to one side of the first chain wheel transmission assembly, adjustment can be conducted according to the pressing condition of an arc-shaped plate, the pressing stability of the arc-shaped plate is improved, the welding device can be correspondingly moved according to the bending radian of a bendable steel plate by means of the characteristic of sliding connection between a limiting groove and a second limiting sliding block, and the welding efficiency is improved. And link track movement can be accurately carried out, and the welding stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a fast-positioning arc plate welding device for tunnel construction. Background Art

[0002] As a common type of pressurized tunnel lining, steel plate lining has been widely used in the lining of pumped storage pressure inclined shafts. The construction of steel lining in the tunnel mainly includes assembly, welding and quality inspection processes, among which steel lining welding is the key to ensure the quality of lining construction, especially in the limited space of the tunnel, where multi-angle and no-dead-angle welding operations are very difficult.

[0003] Publication No. CN117817224B discloses a welding device for tunnel construction, which is provided with an adjustment mechanism and a clamping mechanism. The welding gun clamped by the clamping mechanism is moved to the welding position of the steel lining plate through the adjustment mechanism, and the gear rack moving module of the adjustment mechanism drives the welding gun to move in a uniform linear manner to perform stable welding. During the movement of the welding gun, the limiting wheel of the clamping mechanism always abuts against the steel lining plate, thereby limiting the position of the welding gun, and the welding gun moves with a fixed gap between the nozzle and the steel lining plate, so that the welding gun can automatically adapt to the height change of the tunnel top, thereby improving the welding quality of the weld. However, the patent still has the following problems in actual use:

[0004] Although the welding equipment for tunnel construction uses an adjustment mechanism to move the welding gun clamped by the clamping mechanism to the welding position of the steel lining, and drives the welding gun to move in a uniform straight line through the gear rack moving module of the adjustment mechanism to perform smooth welding, it is unable to press the steel lining during welding and unable to make the steel lining fit the curvature of the tunnel top, resulting in a certain deviation in the welding, thereby affecting the quality of the welding. When welding the curved steel lining, it is unable to make corresponding adjustments according to the stress conditions of the supporting points at the welding position, affecting the stability of the support.

[0005] Therefore, a fast-positioning arc plate welding device for tunnel construction is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a fast-positioning arc plate welding equipment for tunnel construction, so as to solve the problem proposed in the above background technology that although the welding equipment for tunnel construction moves the welding gun clamped by the clamping mechanism to the welding position of the steel lining plate to be welded through the adjusting mechanism, and drives the welding gun to move in a uniform straight line through the gear rack moving module of the adjusting mechanism to perform smooth welding, the steel lining plate cannot be pressed during welding, and the steel lining plate cannot be made to fit the curvature of the tunnel top, resulting in a certain deviation in the welding, thereby affecting the quality of the welding, and when welding the arc-shaped steel lining plate, it is impossible to make corresponding adjustments according to the stress conditions of the supporting point at the welding position, affecting the support stability.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: A fast-positioning arc plate welding device for tunnel construction, comprising a welding support mechanism, and a welding device installed on the top of the welding support mechanism;

[0008] A movable support mechanism is arranged at the bottom of the welding support mechanism, and a lifting threaded bracket is symmetrically arranged at the top of the movable support mechanism;

[0009] Also includes:

[0010] The welding support mechanism comprises a support bracket, an adjusting motor is fixedly mounted on one side of the inner side of the support bracket, and an output end of the adjusting motor is fixedly connected to a first sprocket transmission assembly;

[0011] Among them, one side of the first sprocket transmission assembly is symmetrically connected with an adjustable bidirectional threaded rod, both ends of the two adjustable bidirectional threaded rods are threadedly connected with an adjustable threaded sleeve, and the tops of the two adjustable threaded sleeves are fixedly installed with an adjustable limit plate;

[0012] Among them, a first lifting bracket is symmetrically installed on the top of the adjustment limit plate, a first lifting motor is fixedly installed on the top of the first lifting bracket, and a first lifting threaded rod is fixedly connected to the output end of the first lifting motor.

[0013] Preferably, the outer side of the first lifting threaded rod is threadedly connected to the first lifting threaded sleeve, the outer side of the first lifting threaded sleeve is fixedly installed with a lifting support rod, the top of the lifting support rod is fixedly installed with a support plate, the top of the support plate is fixedly installed with a plurality of first support rotating seats, and the top of the first support rotating seat is rotatably connected to a support bottom plate.

[0014] Preferably, a support fixing column is symmetrically installed on the top of the support bottom plate, a support fixing plate is fixedly installed on the top of the support fixing column, an adjusting knob is rotatably connected to the top center position of the support fixing plate, the bottom of the adjusting knob is fixedly connected to a support threaded rod, the outer side of the support threaded rod is threadedly connected to a first threaded bracket, support sliding rods are symmetrically installed on both sides of the top of the first threaded bracket, and a support top plate is fixedly installed on the top of the support sliding rod.

[0015] Preferably, the top center position of the support top plate is rotatably connected to a second support rotating seat, the top of the second support rotating seat is fixedly installed with a first limit slider, the top of the first limit slider is fixedly installed with a limit pulley, the outer side of the limit pulley is slidably connected to a bendable steel plate, the inside of the bendable steel plate is provided with a sliding groove, and one side of the bendable steel plate is provided with a limit groove.

[0016] Preferably, the limiting groove is internally slidably connected to a second limiting slider, the outer side of the second limiting slider is fixedly installed with a limiting sliding rod, the outer side of the limiting sliding rod is slidably connected to a limiting sliding sleeve, the end of the limiting sliding sleeve is fixedly installed with a variable thread block, the variable thread block is provided with a plurality of variable grooves inside, the outer side of the variable thread block is threadedly connected with a threaded fixing sleeve, a welding bracket is fixedly installed on one side of the top of the limiting sliding sleeve, the welding device is rotatably connected to the welding bracket, and a connecting wire is fixedly connected to the bottom of the welding device.

[0017] Preferably, the mobile support mechanism includes a mobile frame, a lifting sliding bracket is symmetrically installed on the top of the mobile frame, the lifting threaded bracket is symmetrically installed on both sides of the bottom of the support bracket, a motor cover is fixedly installed on one side of the two lifting threaded brackets, a second lifting motor is fixedly installed on the inner side of the motor cover, the output end of the second lifting motor is fixedly connected to a second sprocket transmission assembly, one side of the second sprocket transmission assembly is symmetrically connected to a second lifting threaded rod, and the outer sides of the two second lifting threaded rods are symmetrically threaded with second lifting thread sleeves.

[0018] Preferably, the bottom of the second lifting threaded sleeve is rotatably connected to a lifting rotating rod, the bottom of the lifting rotating rod is rotatably connected to a lifting sliding sleeve, the inside of the lifting sliding sleeve is slidably connected to a lifting sliding rod, the lifting sliding rod is fixedly installed inside the lifting sliding bracket, shock absorbers are fixedly installed around the bottom of the movable frame, a vehicle chassis is fixedly installed at the bottom of the shock absorber, moving wheels are arranged around the vehicle chassis, a partition plate is fixedly installed at the top middle position of the vehicle chassis, and buffer sliding rods are symmetrically installed on both sides of the partition plate.

[0019] Preferably, the outer side of the buffer sliding rod is slidably connected to a buffer sliding sleeve, one side of the buffer sliding sleeve is fixedly connected to a buffer spring, the top of the buffer sliding sleeve is rotatably connected to a buffer rotating rod, the buffer rotating rod is rotatably connected to the moving frame, and the first reinforced rotating support is symmetrically installed on both sides of the vehicle chassis, the bottom of the first reinforced rotating support is rotatably connected to a clamping rotating bracket, a clamping sliding rod is fixedly installed on one side of the inner side of the clamping rotating bracket, the outer side of the clamping sliding rod is slidably connected to a reinforcement sliding sleeve, and the top of the reinforcement sliding sleeve is fixedly installed with a reinforcement spring.

[0020] Preferably, the outer side of the reinforced sliding sleeve is rotatably connected to a reinforced rotating rod, the reinforced rotating rod and the bottom of the clamping rotating bracket are rotatably connected to a reinforced rotating plate, one side of the bottom of the reinforced rotating plate is symmetrically rotatably connected to a second reinforced rotating support, a spring supporting foot is fixedly installed on the bottom of the second reinforced rotating support, a reinforced support block is fixedly installed on the side of the reinforced rotating plate away from the second reinforced rotating support, a reinforced bottom plate is fixedly installed on the bottom of the reinforced support block, a plurality of reinforced ground nails are slidably connected to the inside of the reinforced bottom plate, a threaded section is fixedly installed on the top of the reinforced ground nail, and the threaded section is threadedly connected to the reinforced bottom plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the arc plate welding equipment for tunnel construction with rapid positioning can be adjusted according to the compression condition of the arc plate to improve the compression stability of the arc plate, and the characteristic of the sliding connection between the limit groove and the second limit slider can be used to move the welding device accordingly according to the bending curvature of the bendable steel plate, and the link trajectory can be moved accurately to improve the stability of welding. The reinforcing ground nails can be extended and fixed by the characteristic of the threaded connection between the threaded section and the reinforcing bottom plate, and the reinforcing ground nails can be inserted into the soil when the reinforcing rotating plate rotates, thereby improving the stability of the entire device. When the construction site is a hardened concrete pavement, the reinforcing ground nails can be retracted, and the reinforcing bottom plate can be used to reinforce the entire device to improve the stability of the device during welding. The specific contents are as follows:

[0022] 1. By setting up the welding support mechanism, not only can the adjusting motor be used to drive the first sprocket transmission assembly and the adjusting bidirectional threaded rod to rotate, so that the two adjusting threaded sleeves drive the adjusting limit plate and the first lifting bracket to move relatively, but also the position of the support can be adjusted, which is convenient for supporting arc plates of different sizes. By starting the first lifting motor to drive the first lifting threaded rod to rotate, the first lifting threaded sleeve drives the lifting support rod and the support plate to move up and down, and the bendable steel plate can be moved to the bottom of the arc plate for preliminary positioning support. By observing the bending condition of the bendable steel plate and utilizing the characteristics of the sliding connection between the limiting pulley and the sliding groove, the support force point of the arc plate can be adjusted. By turning the adjusting knob to drive the support threaded rod to rotate, the first threaded bracket drives the support sliding rod and the support top plate to move up and down. The movement can adjust the distance between the first supporting rotating seat and the second supporting rotating seat, which can not only adjust the bending curvature of the bendable steel plate, but also can be adjusted according to the pressing condition of the arc plate, thereby improving the pressing stability of the arc plate. By utilizing the characteristics of the sliding connection between the limiting groove and the second limiting sliding block, the welding device can be moved accordingly according to the bending curvature of the bendable steel plate, and the link trajectory can be moved accurately to improve the stability of welding. By utilizing the characteristics of the sliding connection between the limiting sliding rod and the limiting sliding sleeve, the position adjustment of the welding device can be realized, and the threaded fixing sleeve can be tightened. Under the action of the variable groove, the variable threaded block is tightened to clamp and fix the limiting sliding rod, thereby facilitating the adjustment of the position of the welding device according to the position of the weld, thereby further improving the stability of welding.

[0023] 2. By setting up the mobile support mechanism, not only can the second lifting motor on the top of the mobile frame drive the second sprocket transmission assembly and the second lifting threaded rod to rotate, so that the second lifting threaded sleeve can move relatively and drive the lifting rotating rod to rotate, so that the lifting sliding sleeve can slide relatively on the outside of the lifting sliding rod, and the distance between the lifting sliding bracket and the lifting threaded bracket can be adjusted, and the support height can be adjusted twice. The movement of the entire device can be achieved through the moving wheels on the outside of the chassis, which is convenient for uninterrupted welding. The shock absorber and the buffer spring can achieve the effect of shock absorption and buffering, and the bending of the bendable steel plate can be carried out. When compressed, the pressure on the top will be transmitted to the bottom, and under the action of the shock absorber and the reinforcement spring, the reinforced rotating plate can be rotated, and the whole device is stably supported by the spring support feet and the reinforced bottom plate. When the construction site is an unhardened concrete pavement, the reinforced ground nails can be extended and fixed by threading the threaded section with the reinforced bottom plate. When the reinforced rotating plate rotates, the reinforced ground nails can be inserted into the soil to improve the stability of the whole device. When the construction site is a hardened concrete pavement, the reinforced ground nails can be retracted and the reinforced bottom plate can be used to reinforce the whole device to improve the stability of the device during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the welding support mechanism in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustable limit plate and the first lifting bracket in the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting support rod and the support plate in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the cross section of the bendable steel plate in the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the first limiting sliding block and the limiting pulley in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting sliding rod and the limiting sliding sleeve in the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the mobile support mechanism in the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the lifting and rotating rod in the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the vehicle chassis in the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the reinforced rotating plate in the present invention.

[0035] In the figure: 1, welding support mechanism; 101, support bracket; 102, adjustment motor; 103, first sprocket transmission assembly; 104, adjustment bidirectional threaded rod; 105, adjustment threaded sleeve; 106, adjustment limit plate; 107, first lifting bracket; 108, first lifting motor; 109, first lifting threaded rod; 110, first lifting threaded sleeve; 111, lifting support rod; 112, support plate; 113, first support rotating seat; 114, support bottom plate; 115, support fixed column; 116, support Support fixed plate; 117, adjustment knob; 118, support threaded rod; 119, first threaded bracket; 120, support sliding rod; 121, support top plate; 122, second support rotating seat; 123, first limit slider; 124, limit pulley; 125, bendable steel plate; 126, sliding groove; 127, limit groove; 128, second limit slider; 129, limit sliding rod; 130, limit sliding sleeve; 131, variable thread block; 132, variable groove; 133, thread fixing sleeve; 134, Welding bracket; 135, welding device; 136, connecting line; 2, mobile support mechanism; 201, mobile frame; 202, lifting and sliding bracket; 203, lifting and threaded bracket; 204, motor cover; 205, second lifting motor; 206, second sprocket transmission assembly; 207, second lifting and threaded rod; 208, second lifting and threaded sleeve; 209, lifting and rotating rod; 210, lifting and sliding sleeve; 211, lifting and sliding rod; 212, shock absorber; 213, chassis; 214, moving wheel; 215 , partition plate; 216, buffer sliding rod; 217, buffer sliding sleeve; 218, buffer spring; 219, buffer rotating rod; 220, first reinforced rotating support; 221, clamping rotating bracket; 222, clamping sliding rod; 223, reinforced sliding sleeve; 224, reinforced spring; 225, reinforced rotating rod; 226, reinforced rotating plate; 227, second reinforced rotating support; 228, spring supporting foot; 229, reinforced support block; 230, reinforced bottom plate; 231, reinforced ground nail; 232, threaded section. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 11The present invention provides a technical solution: a fast-positioning arc plate welding device for tunnel construction, comprising a welding support mechanism 1, and a welding device 135 installed on the top of the welding support mechanism 1, a mobile support mechanism 2 is arranged at the bottom of the welding support mechanism 1, and a lifting threaded bracket 203 is symmetrically arranged on the top of the mobile support mechanism 2, the welding support mechanism 1 comprises a support bracket 101, an adjusting motor 102 is fixedly installed on one side of the inner side of the support bracket 101, and the output end of the adjusting motor 102 is fixedly connected to a first sprocket transmission assembly 103, wherein one side of the first sprocket transmission assembly 103 is opposite to the welding support mechanism 101. It is connected with an adjustable bidirectional threaded rod 104, both ends of the two adjusting bidirectional threaded rods 104 are threadedly connected with an adjusting threaded sleeve 105, and the top of the two adjusting threaded sleeves 105 is fixedly installed with an adjusting limit plate 106, wherein the top of the adjusting limit plate 106 is symmetrically installed with a first lifting bracket 107, and the adjusting motor 102 is used to drive the first sprocket transmission assembly 103 and the adjusting bidirectional threaded rod 104 to rotate, so that the two adjusting threaded sleeves 105 drive the adjusting limit plate 106 and the first lifting bracket 107 to move relative to each other, and the support position can be adjusted, which is convenient for supporting arc plates of different sizes.

[0038] A first lifting motor 108 is fixedly installed on the top of the first lifting bracket 107, and a first lifting threaded rod 109 is fixedly connected to the output end of the first lifting motor 108. The outer side of the first lifting threaded rod 109 is threadedly connected to the first lifting threaded sleeve 110, and a lifting support rod 111 is fixedly installed on the outer side of the first lifting threaded sleeve 110. A support plate 112 is fixedly installed on the top of the lifting support rod 111, and a plurality of first support rotating seats 113 are fixedly installed on the top of the support plate 112. The top of the first support rotating seat 113 is rotatably connected to a support bottom plate 114, and a support fixing column 115 is symmetrically installed on the top of the support bottom plate 114, and a support fixing column 115 is fixedly installed on the top of the support fixing column 115. A support fixing plate 116 is rotatably connected to an adjusting knob 117 at the top center of the support fixing plate 116, a support threaded rod 118 is fixedly connected to the bottom of the adjusting knob 117, a first threaded bracket 119 is threadedly connected to the outer side of the support threaded rod 118, support sliding rods 120 are symmetrically installed on both sides of the top of the first threaded bracket 119, a support top plate 121 is fixedly installed on the top of the support sliding rod 120, a second support rotating seat 122 is rotatably connected to the top center of the support top plate 121, a first limiting slider 123 is fixedly installed on the top of the second support rotating seat 122, a limiting pulley 124 is fixedly installed on the top of the first limiting slider 123, and a limiting pulley 124 is fixedly installed on the top of the limiting pulley 124. A bendable steel plate 125 is slidably connected to the outside, a sliding groove 126 is provided inside the bendable steel plate 125, a limiting groove 127 is provided on one side of the bendable steel plate 125, and a second limiting slider 128 is slidably connected inside the limiting groove 127. By starting the first lifting motor 108 to drive the first lifting threaded rod 109 to rotate, the first lifting threaded sleeve 110 drives the lifting support rod 111 and the support plate 112 to move up and down, and the bendable steel plate 125 can be moved to the bottom of the arc plate for preliminary positioning support. By observing the bending condition of the bendable steel plate 125 and utilizing the characteristics of the sliding connection between the limiting pulley 124 and the sliding groove 126, the supporting force point of the arc plate can be positioned. Adjustment is performed by rotating the adjusting knob 117 to drive the supporting threaded rod 118 to rotate, so that the first threaded bracket 119 drives the supporting sliding rod 120 and the supporting top plate 121 to move up and down, and the distance between the first supporting rotating seat 113 and the second supporting rotating seat 122 can be adjusted. Not only can the bending curvature of the bendable steel plate 125 be adjusted, but it can also be adjusted according to the clamping condition of the arc plate to improve the clamping stability of the arc plate. By utilizing the characteristics of the sliding connection between the limiting groove 127 and the second limiting sliding block 128, the welding device 135 can be moved accordingly according to the bending curvature of the bendable steel plate 125, and the link trajectory can be moved accurately to improve the stability of welding.

[0039] A limited sliding rod 129 is fixedly installed on the outer side of the second limited sliding block 128, and the outer side of the limited sliding rod 129 is slidably connected to the limited sliding sleeve 130. A variable thread block 131 is fixedly installed on the end of the limited sliding sleeve 130. A plurality of variable grooves 132 are opened inside the variable thread block 131, and a threaded fixing sleeve 133 is threadedly connected to the outer side of the variable thread block 131. A welding bracket 134 is fixedly installed on one side of the top of the limited sliding sleeve 130. The welding device 135 is rotatably connected to the welding bracket 134, and a connecting line 136 is fixedly connected to the bottom of the welding device 135. Through the sliding connection between the limited sliding rod 129 and the limited sliding sleeve 130, the position of the welding device 135 can be adjusted, and the threaded fixing sleeve 133 is tightened. Under the action of the variable groove 132, the variable thread block 131 is tightened to clamp and fix the limited sliding rod 129, so that the position of the welding device 135 can be adjusted according to the position of the weld, thereby further improving the stability of welding.

[0040] The mobile support mechanism 2 includes a mobile frame 201, a lifting sliding bracket 202 is symmetrically installed on the top of the mobile frame 201, and a lifting threaded bracket 203 is symmetrically installed on both sides of the bottom of the support bracket 101. A motor cover 204 is fixedly installed on one side of the two lifting threaded brackets 203, and a second lifting motor 205 is fixedly installed on one side of the motor cover 204. The output end of the second lifting motor 205 is fixedly connected to a second sprocket transmission assembly 206, and one side of the second sprocket transmission assembly 206 is symmetrically connected to a second lifting threaded rod 207. The outer sides of the two second lifting threaded rods 207 are symmetrically threadedly connected to a second lifting thread sleeve 208. The second lifting thread sleeve 208 is symmetrically threaded. The bottom of the threaded sleeve 208 is rotatably connected to a lifting rotating rod 209, and the bottom of the lifting rotating rod 209 is rotatably connected to a lifting sliding sleeve 210. The inside of the lifting sliding sleeve 210 is slidably connected to a lifting sliding rod 211. The second lifting motor 205 on the top of the mobile frame 201 drives the second sprocket transmission assembly 206 and the second lifting threaded rod 207 to rotate, so that the second lifting threaded sleeve 208 moves relatively and drives the lifting rotating rod 209 to rotate, so that the lifting sliding sleeve 210 slides relatively on the outside of the lifting sliding rod 211, so as to adjust the distance between the lifting sliding bracket 202 and the lifting threaded bracket 203, and to perform secondary adjustment on the support height.

[0041] The lifting and sliding rod 211 is fixedly installed inside the lifting and sliding bracket 202, and the shock absorber 212 is fixedly installed around the bottom of the mobile frame 201, and the bottom of the shock absorber 212 is fixedly installed with a chassis 213, and the chassis 213 is provided with moving wheels 214 around the chassis 213. A partition plate 215 is fixedly installed at the top middle position of the chassis 213, and buffer sliding rods 216 are symmetrically installed on both sides of the partition plate 215. The outer side of the buffer sliding rod 216 is slidably connected with a buffer sliding sleeve 217, and one side of the buffer sliding sleeve 217 is fixedly connected with a buffer spring 218. The top of the buffer sliding sleeve 217 is rotatably connected with a buffer rotating rod 219, and the buffer rotating rod 219 is rotatably connected to the mobile frame 201 A first reinforced rotating support 220 is symmetrically installed on both sides of the vehicle chassis 213, and a clamping rotating bracket 221 is rotatably connected to the bottom of the first reinforced rotating support 220, and a clamping sliding rod 222 is fixedly installed on the inner side of the clamping rotating bracket 221, and a reinforced sliding sleeve 223 is slidably connected to the outer side of the clamping sliding rod 222, and a reinforcing spring 224 is fixedly installed on the top of the reinforced sliding sleeve 223, and a reinforced rotating rod 225 is rotatably connected to the outer side of the reinforced sliding sleeve 223, and a reinforced rotating plate 226 is rotatably connected to the bottom of the reinforced rotating rod 225 and the clamping rotating bracket 221, and a second reinforced rotating support 227 is symmetrically rotatably connected to the bottom side of the reinforced rotating plate 226, and the second reinforced rotating support A spring support foot 228 is fixedly installed at the bottom of the seat 227, a reinforcement support block 229 is fixedly installed on one side of the reinforcement rotating plate 226 away from the second reinforcement rotating support 227, a reinforcement base plate 230 is fixedly installed at the bottom of the reinforcement support block 229, a plurality of reinforcement ground nails 231 are slidably connected inside the reinforcement base plate 230, a threaded section 232 is fixedly installed on the top of the reinforcement ground nail 231, and the threaded section 232 is threadedly connected to the reinforcement base plate 230, and the movement of the entire device is realized by the moving wheel 214 on the outside of the chassis 213, which is convenient for uninterrupted welding, and the shock absorber 212 and the buffer spring 218 can realize the shock absorption and buffering effect, when the bendable steel plate 125 is bent and pressed, The pressure at the top will be transmitted to the bottom, and under the action of the shock absorber 212 and the reinforcement spring 224, the reinforcement rotating plate 226 can be rotated, and the whole device is stably supported by the spring support feet 228 and the reinforcement base plate 230. When the construction site is an unhardened concrete road surface, the reinforcement ground nails 231 are extended and fixed by threading the threaded section 232 with the reinforcement base plate 230. When the reinforcement rotating plate 226 rotates, the reinforcement ground nails 231 can be inserted into the soil to improve the stability of the whole device. When the construction site is a hardened concrete road surface, the reinforcement ground nails 231 can be retracted, and the reinforcement base plate 230 can be used to reinforce the whole device to improve the stability of the device during welding.

[0042] Working principle: Before using this kind of fast positioning arc plate welding equipment for tunnel construction, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Fig.11 As shown, first, the second lifting motor 205 on the top of the mobile frame 201 drives the second sprocket transmission assembly 206 and the second lifting threaded rod 207 to rotate, so that the second lifting threaded sleeve 208 moves relatively and drives the lifting rotating rod 209 to rotate, so that the lifting sliding sleeve 210 slides relatively on the outside of the lifting sliding rod 211, and the distance between the lifting sliding bracket 202 and the lifting threaded bracket 203 can be adjusted, and the support height can be adjusted twice. The movement of the entire device is achieved through the moving wheel 214 on the outside of the chassis 213, which is convenient for uninterrupted welding. The shock absorber 212 and the buffer spring 218 can achieve the effect of shock absorption and buffering. When the bendable steel plate 125 is bent, When pressed, the pressure from the top will be transmitted to the bottom, so that the reinforced rotating plate 226 can be rotated under the action of the shock absorber 212 and the reinforced spring 224, and the whole device is stably supported by the spring support feet 228 and the reinforced bottom plate 230. When the construction site is an unhardened concrete road surface, the reinforced ground nails 231 are extended and fixed by threading the threaded section 232 with the reinforced bottom plate 230. When the reinforced rotating plate 226 rotates, the reinforced ground nails 231 can be inserted into the soil to improve the stability of the whole device. When the construction site is a hardened concrete road surface, the reinforced ground nails 231 can be retracted and the reinforced bottom plate 230 can be used to reinforce the whole device to improve the stability of the device during welding.

[0043] Secondly, the adjusting motor 102 is used to drive the first sprocket transmission assembly 103 and the adjusting bidirectional threaded rod 104 to rotate, so that the two adjusting threaded sleeves 105 drive the adjusting limit plate 106 and the first lifting bracket 107 to move relatively, and the support position can be adjusted to facilitate the support of arc plates of different sizes. By starting the first lifting motor 108 to drive the first lifting threaded rod 109 to rotate, the first lifting threaded sleeve 110 drives the lifting support rod 111 and the support plate 112 to move up and down, and the bendable steel plate 125 can be moved to the bottom of the arc plate for preliminary positioning support. By adjusting the bending condition of the bent steel plate 125 and utilizing the characteristics of the sliding connection between the limiting pulley 124 and the sliding groove 126, the support force point of the arc plate can be adjusted. By rotating the adjusting knob 117 to drive the supporting threaded rod 118 to rotate, the first threaded bracket 119 drives the supporting sliding rod 120 and the supporting top plate 121 to move up and down, and the distance between the first supporting rotating seat 113 and the second supporting rotating seat 122 can be adjusted. Not only can the bending curvature of the bendable steel plate 125 be adjusted, but it can also be adjusted according to the clamping condition of the arc plate to improve the clamping stability of the arc plate.

[0044] Finally, by utilizing the characteristics of the sliding connection between the limit groove 127 and the second limit slider 128, the welding device 135 can be moved accordingly according to the bending curvature of the bendable steel plate 125, and the link trajectory can be moved accurately to improve the stability of welding. Through the characteristics of the sliding connection between the limit sliding rod 129 and the limit sliding sleeve 130, the position of the welding device 135 can be adjusted, and the threaded fixing sleeve 133 can be tightened. Under the action of the variable groove 132, the variable thread block 131 is tightened to clamp and fix the limit sliding rod 129, which is convenient for adjusting the position of the welding device 135 according to the position of the weld, further improving the stability of welding.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fast positioning arc plate welding device for tunnel construction, comprising a welding support mechanism (1), and a welding device (135) mounted on the top of the welding support mechanism (1); The bottom of the welding support mechanism (1) is provided with a movable support mechanism (2), and the top of the movable support mechanism (2) is symmetrically provided with a lifting threaded bracket (203); It is characterized in that Also includes: The welding support mechanism (1) comprises a support bracket (101), an adjusting motor (102) is fixedly mounted on one side of the interior of the support bracket (101), and an output end of the adjusting motor (102) is fixedly connected to a first sprocket transmission assembly (103); One side of the first sprocket transmission assembly (103) is symmetrically connected to an adjustable bidirectional threaded rod (104), both ends of the two adjustable bidirectional threaded rods (104) are threadedly connected to adjustable threaded sleeves (105), and the tops of the two adjustable threaded sleeves (105) are fixedly mounted with adjustable limit plates (106); A first lifting bracket (107) is symmetrically mounted on the top of the adjustment limit plate (106), a first lifting motor (108) is fixedly mounted on the top of the first lifting bracket (107), and a first lifting threaded rod (109) is fixedly connected to the output end of the first lifting motor (108).

2. The fast positioning arc plate welding equipment for tunnel construction according to claim 1 is characterized in that: The outer side of the first lifting threaded rod (109) is threadedly connected to a first lifting threaded sleeve (110); a lifting support rod (111) is fixedly mounted on the outer side of the first lifting threaded sleeve (110); a support plate (112) is fixedly mounted on the top of the lifting support rod (111); a plurality of first support rotating seats (113) are fixedly mounted on the top of the support plate (112); and the top of the first support rotating seat (113) is rotatably connected to a support bottom plate (114).

3. The fast positioning arc plate welding equipment for tunnel construction according to claim 2 is characterized in that: A support fixing column (115) is symmetrically mounted on the top of the support bottom plate (114); a support fixing plate (116) is fixedly mounted on the top of the support fixing column (115); an adjusting knob (117) is rotatably connected to the center position of the top of the support fixing plate (116); a support threaded rod (118) is fixedly connected to the bottom of the adjusting knob (117); the outer side of the support threaded rod (118) is threadedly connected to a first threaded bracket (119); support sliding rods (120) are symmetrically mounted on both sides of the top of the first threaded bracket (119); and a support top plate (121) is fixedly mounted on the top of the support sliding rod (120).

4. The fast positioning arc plate welding equipment for tunnel construction according to claim 3 is characterized by: The top center position of the support top plate (121) is rotatably connected to a second support rotating seat (122); the top of the second support rotating seat (122) is fixedly mounted with a first limiting slider (123); the top of the first limiting slider (123) is fixedly mounted with a limiting pulley (124); the outer side of the limiting pulley (124) is slidably connected to a bendable steel plate (125); a sliding groove (126) is provided inside the bendable steel plate (125); and a limiting groove (127) is provided on one side of the bendable steel plate (125).

5. The fast positioning arc plate welding equipment for tunnel construction according to claim 4 is characterized in that: The limiting groove (127) is slidably connected to a second limiting slider (128) inside, the second limiting slider (128) is fixedly mounted on the outside of a limiting slider (129), the limiting slider (129) is slidably connected to the outside of a limiting slider sleeve (130), a variable thread block (131) is fixedly mounted on the end of the limiting slider sleeve (130), a plurality of variable grooves (132) are formed inside the variable thread block (131), the outside of the variable thread block (131) is threadedly connected to a threaded fixing sleeve (133), a welding bracket (134) is fixedly mounted on one side of the top of the limiting slider sleeve (130), the welding device (135) is rotatably connected to the welding bracket (134), and a connecting wire (136) is fixedly connected to the bottom of the welding device (135).

6. The fast positioning arc plate welding equipment for tunnel construction according to claim 1, characterized in that: The mobile support mechanism (2) comprises a mobile frame (201), a lifting sliding bracket (202) is symmetrically mounted on the top of the mobile frame (201), the lifting thread bracket (203) is symmetrically mounted on both sides of the bottom of the support bracket (101), a motor cover (204) is fixedly mounted on one side of the two lifting thread brackets (203), a second lifting motor (205) is fixedly mounted on one side of the motor cover (204), an output end of the second lifting motor (205) is fixedly connected to a second sprocket transmission assembly (206), one side of the second sprocket transmission assembly (206) is symmetrically connected to a second lifting thread rod (207), and the outer sides of the two second lifting thread rods (207) are both symmetrically threadedly connected to a second lifting thread sleeve (208).

7. The fast positioning arc plate welding equipment for tunnel construction according to claim 6 is characterized by: The bottom of the second lifting threaded sleeve (208) is rotatably connected to a lifting rotating rod (209), the bottom of the lifting rotating rod (209) is rotatably connected to a lifting sliding sleeve (210), the interior of the lifting sliding sleeve (210) is slidably connected to a lifting sliding rod (211), the lifting sliding rod (211) is fixedly mounted inside the lifting sliding bracket (202), shock absorbers (212) are fixedly mounted around the bottom of the moving frame (201), a chassis (213) is fixedly mounted at the bottom of the shock absorber (212), moving wheels (214) are arranged around the chassis (213), a partition plate (215) is fixedly mounted at the middle position of the top of the chassis (213), and buffer sliding rods (216) are symmetrically mounted on both sides of the partition plate (215).

8. The fast positioning arc plate welding equipment for tunnel construction according to claim 7 is characterized by: The outer side of the buffer sliding rod (216) is slidably connected to a buffer sliding sleeve (217), one side of the buffer sliding sleeve (217) is fixedly connected to a buffer spring (218), the top of the buffer sliding sleeve (217) is rotatably connected to a buffer rotating rod (219), the buffer rotating rod (219) is rotatably connected to the moving frame (201), and first reinforced rotating supports (220) are symmetrically installed on both sides of the vehicle chassis (213), the bottom of the first reinforced rotating support (220) is rotatably connected to a clamping rotating bracket (221), a clamping sliding rod (222) is fixedly installed on one side of the inner side of the clamping rotating bracket (221), the outer side of the clamping sliding rod (222) is slidably connected to a reinforced sliding sleeve (223), and the top of the reinforced sliding sleeve (223) is fixedly installed with a reinforced spring (224).

9. The fast positioning arc plate welding equipment for tunnel construction according to claim 8, characterized in that: The outer side of the reinforced sliding sleeve (223) is rotatably connected to a reinforced rotating rod (225), the bottom of the reinforced rotating rod (225) and the clamping rotating bracket (221) are rotatably connected to a reinforced rotating plate (226), one side of the bottom of the reinforced rotating plate (226) is symmetrically rotatably connected to a second reinforced rotating support (227), the bottom of the second reinforced rotating support (227) is fixedly mounted with a spring support foot (228), a side of the reinforced rotating plate (226) away from the second reinforced rotating support (227) is fixedly mounted with a reinforced support block (229), the bottom of the reinforced support block (229) is fixedly mounted with a reinforced bottom plate (230), the inside of the reinforced bottom plate (230) is slidably connected to a plurality of reinforced ground nails (231), the top of the reinforced ground nail (231) is fixedly mounted with a threaded section (232), and the threaded section (232) is threadedly connected to the reinforced bottom plate (230).

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