A bridge prefabricated component lifting device

Abstract

The present invention relates to the technical field of prefabricated component lifting, and in particular to a bridge prefabricated component lifting device, and its technical solution includes: a lifting transmission component, the lifting transmission component includes a transport equipment body, one side of the transport equipment body is hinged with a corresponding lifting arm, and the corresponding lifting arm is slidably connected with a positioning rope on the side away from the transport equipment body. The present invention uses a wrapped outer frame to follow the positioning rope to move synchronously, and the first rotating wheel drives the second rotating wheel and the external gear ring to rotate relative to the electric transposition clamping block by following the deflection angle and orientation of the bridge prefabricated component through the auxiliary rope on the wrapped outer frame, so that the control valve controls the rotation direction of the auxiliary adjustment block, and adjusts the tilt direction of the bridge prefabricated component, thereby performing corresponding control according to the transmission angle and direction of the bridge prefabricated component, reducing the shaking of the prefabricated component, avoiding contact with obstacles on the lifting route, and being detrimental to the safety of surrounding personnel and equipment.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated component lifting, and in particular to a bridge prefabricated component lifting device. Background Art

[0002] Prefabricated bridge parts are mass-produced and standardized, which reduces material and labor costs. At the same time, the reduction of wet work on site reduces noise, dust and other pollution during the construction process. The operation of the lifting device can achieve precise positioning of the prefabricated parts at the installation position. Due to factors such as wind force and the performance of the lifting device, it is difficult to accurately control the position of the prefabricated parts. There are certain requirements for the site space for the lifting operation, and a small site may affect the operation.

[0003] In the patent document with the published announcement number CN116443744A, a bridge prefabricated component lifting device is disclosed. It includes a main lifting arm and a main lifting rope, and the second lifting mechanism includes an auxiliary lifting arm and two auxiliary lifting ropes, and the auxiliary lifting arm has a first state and a second state. When the auxiliary lifting arm is in the first state, the bridge prefabricated component is horizontally arranged under the action of the first lifting mechanism and the second lifting mechanism. When the auxiliary lifting arm is in the second state, due to the friction between the lifting lug and the first hook, an angle is formed between the bridge prefabricated component and the vertical line, and then the auxiliary lifting arm is swung to make the bridge prefabricated component tend to be vertical. Through the contact between the lifting rope and the sensing rod, the sensor controls the motor to rotate and adjusts the angle of the auxiliary lifting, thereby solving the problem that the bridge prefabricated component is prone to tilt when the existing lifting device lifts the bridge prefabricated component.

[0004] When the above device is in use, the condition for adjusting the angle of the auxiliary hoist is that the main hoist rope will contact the sensing rod. There is a distance between the two due to the angle between the bridge prefabricated component and the vertical line. The prefabricated component still shakes within this distance. The shaking of the prefabricated component is easy to touch the obstacles on the lifting route, which is detrimental to the safety of surrounding personnel and equipment.

[0005] Therefore, the present application proposes a bridge prefabricated component lifting device. Summary of the invention

[0006] The purpose of the present invention is to propose a bridge prefabricated component lifting device to address the problem in the background technology that the prefabricated components still shake between the main lifting rope and the sensing rod, easily touch the obstacles on the lifting route, and are detrimental to the safety of surrounding personnel and equipment.

[0007] The technical solution of the present invention is as follows: a bridge prefabricated component lifting device, comprising a lifting transmission assembly, the lifting transmission assembly comprising a transport equipment body, a corresponding lifting arm is hinged on one side of the transport equipment body, a positioning pull rope is slidably connected to the side of the corresponding lifting arm away from the transport equipment body, a corresponding tilt protection assembly and an auxiliary clamping assembly are installed on one side of the lifting transmission assembly, a rope transmission speed limiting assembly is installed below the corresponding tilt protection assembly, and a bridge prefabricated component is installed on one side of the auxiliary clamping assembly;

[0008] The corresponding tilt protection assembly comprises an auxiliary positioning rod rotatably mounted on both sides of the corresponding lifting arm, two electric transposition clamping blocks are fixedly mounted on both sides of the auxiliary positioning rod, one side of the two electric transposition clamping blocks is rotatably connected to two external gear rings, two two-way connecting rods are fixedly connected between the two external gear rings, a fixing block is fixedly mounted on the outer center of one of the two-way connecting rods, a first rotating wheel is fixedly connected inside the fixing block, one side of the two external gear rings is fixedly connected to the same number of second rotating wheels through an auxiliary rotating rod, an auxiliary connecting rope is installed for transmission between the two second rotating wheels and the first rotating wheel, and two sets of auxiliary pull ropes are fixedly connected on both sides of the first rotating wheel;

[0009] The rope transmission speed limiting assembly comprises a wrapped outer frame, the positioning pull rope is slidably installed inside the wrapped outer frame, and the two sets of auxiliary pull ropes are installed above the rope transmission speed limiting assembly;

[0010] The auxiliary clamping assembly includes an internal gear transmission belt meshedly connected to the outside of the external gear ring, the side of the internal gear transmission belt away from the external gear ring is meshedly connected to a control valve, the outer side of the control valve is rotatably connected to a connecting frame fixedly installed in the inner cavity of the corresponding lifting arm, and one side of the connecting frame is rotatably connected to an auxiliary adjustment block.

[0011] Optionally, an auxiliary spring is fixedly connected between the external gear ring and the electric transposition clamping block, and the external gear ring is arranged in a rotationally limited state along the surface of the electric transposition clamping block by the elastic force of the auxiliary spring.

[0012] Optionally, the two groups of auxiliary pull ropes are arranged in an axially symmetrical state about a center line of the wrapped outer frame, and the first rotating wheel is arranged in a deflected state along the center line.

[0013] Optionally, the lifting and transmission component also includes a positioning support rod fixedly installed above the transportation equipment body, one side of the positioning support rod is fixedly connected to a bidirectional sliding positioning frame with sliding cavities on both sides, and a transmission component for transportation is installed at the bottom of the transportation equipment body.

[0014] Optionally, the interior of the bidirectional sliding positioning frame is slidably connected to a rope positioning roller via a sliding cavity, and the positioning pull rope is connected around the outer side of the rope positioning roller.

[0015] Optionally, the bridge prefabricated component includes a prefabricated component body, and a side of the prefabricated component body facing the auxiliary adjustment block is connected to a rope positioning rod through a first hook, and the rope positioning rod is fixedly installed on one side of the auxiliary adjustment block.

[0016] Optionally, a top positioning frame is fixedly installed on a side of the preform body away from the side positioning frame, and the top of the top positioning frame is connected to the bottom of the side where the positioning rope passes through the wrapped outer frame through a second hook.

[0017] Optionally, the corresponding tilt protection assembly also includes an auxiliary limiting frame, the positioning rope passes through the auxiliary limiting frame from the corresponding lifting arm, two limiting output frames are fixedly connected to both sides of the auxiliary limiting frame, and two corresponding rotating rods are rotatably connected to both sides of the auxiliary limiting frame through the two limiting output frames, and the corresponding rotating rods are fixedly installed on one side of the external gear ring.

[0018] Optionally, the two corresponding rotating rods pass through one side of the auxiliary limiting frame and are fixedly connected with the same number of limiting rope collecting rings, the outer sides of the two limiting rope collecting rings are wrapped with the same number of built-in pull ropes, and the two built-in pull ropes are located on the limiting rope collecting rings and the line outlet directions of the two built-in pull ropes are arranged in opposite states.

[0019] Optionally, the rope transmission speed limiting component also includes a limiting airbag, which is fixedly mounted on the inner wall of the wrapped outer frame, and a spring expansion block is fixedly connected between the limiting airbag and the side wall of the wrapped outer frame, and the built-in pull rope passes through one side of the auxiliary limiting frame and enters the wrapped outer frame, and a push ring is fixedly connected to one side of the built-in pull rope located inside the wrapped outer frame, and the push ring is located below the limiting airbag, and the spring expansion block and the built-in pull rope are arranged in a non-contact state.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. When the bridge prefabricated part tilts or swings during transportation, the wrapped outer frame moves synchronously with the positioning rope, and the first wheel drives the second wheel and the external gear ring to rotate relative to the electric transposition clamping block by following the deflection angle and orientation of the bridge prefabricated part through the auxiliary rope on the wrapped outer frame, so that the control valve controls the rotation direction of the auxiliary adjustment block to adjust the tilt direction of the bridge prefabricated part, thereby controlling the transmission angle and direction of the bridge prefabricated part accordingly, reducing the shaking of the prefabricated part, avoiding contact with obstacles on the lifting route, and detrimental to the safety of surrounding personnel and equipment, and improving the stability of the installation;

[0022] 2. The limiting airbag is normally attached to the outside of the positioning rope. When the positioning rope shakes, the wrapped outer frame can quickly follow the positioning rope to swing in the same direction, so that the gas inside the limiting airbag drives the limiting airbag to expand toward one side of the positioning rope, giving the positioning rope greater friction, and slowing down the relative change of the limiting airbag toward the side of the spring telescopic block;

[0023] 3. The bottom of the prefabricated body is limited by the clamping force provided by the rope positioning rod through the first hook, and the top of the prefabricated body is limited by the clamping force provided by the positioning rope through the second hook, thereby improving the stability of the prefabricated body during transportation, reducing the tilting and shaking amplitude of the prefabricated body, and improving the safety of prefabricated transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a bridge prefabricated component lifting device of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the positioning pull rope of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the corresponding lifting arm of the present invention;

[0027] Figure 4 The present invention Figure 3 Enlarged view of the middle A area;

[0028] Figure 5 It is a structural schematic diagram of the position limiting output frame of the present invention;

[0029] Figure 6 The present invention Figure 5 Enlarged view of the middle B area;

[0030] Figure 7 It is a structural schematic diagram of the wrapped outer frame of the present invention;

[0031] Figure 8 The present invention Figure 7 Enlarged view of the middle C area;

[0032] Fig. 9 It is a schematic structural diagram of the position-limiting airbag of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the built-in gear transmission belt of the present invention.

[0034] Reference numerals: 1. lifting transmission assembly; 101. transport equipment body; 102. positioning support rod; 103. transmission assembly; 104. two-way sliding positioning frame; 105. positioning pull rope; 106. lifting rope positioning roller; 107. corresponding lifting arm; 2. corresponding tilt protection assembly; 201. auxiliary limit frame; 202. electric transposition clamping block; 203. limit output frame; 204. corresponding rotating rod; 205. auxiliary pull rope; 206. external gear ring; 207. two-way connecting rod; 208. first rotating wheel; 209. second rotating wheel; 210. Auxiliary connecting rope; 211. Fixed block; 212. Auxiliary positioning rod; 3. Rope transmission speed limit assembly; 301. Wrap-around outer frame; 302. Built-in pull rope; 303. Limit rope collection ring; 304. Limit airbag; 305. Push ring; 306. Spring expansion block; 4. Auxiliary clamping assembly; 401. Auxiliary adjustment block; 402. Rope positioning rod; 403. Connecting frame; 404. Control valve; 405. Built-in gear transmission belt; 5. Bridge prefabricated component; 501. Prefabricated component body; 502. Side positioning frame; 503. Top positioning frame. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] like Figure 1-Figure 2 As shown, a bridge prefabricated component lifting device proposed by the present invention includes a lifting transmission component 1, the lifting transmission component 1 includes a transportation equipment body 101, one side of the transportation equipment body 101 is hinged with a corresponding lifting arm 107, and the corresponding lifting arm 107 is slidably connected with a positioning rope 105 on the side away from the transportation equipment body 101, and is characterized in that: a corresponding tilt protection component 2 and an auxiliary clamping component 4 are installed on one side of the lifting transmission component 1, a rope transmission speed limiting component 3 is installed below the corresponding tilt protection component 2, a bridge prefabricated component 5 is installed on one side of the auxiliary clamping component 4, and the lifting transmission component 1 also includes a positioning support rod 102 fixedly installed above the transportation equipment body 101, and the positioning support rod 102 A bidirectional sliding positioning frame 104 with sliding cavities on both sides is fixedly connected to one side, and a transmission component 103 for transportation is installed at the bottom of the transportation equipment body 101. The interior of the bidirectional sliding positioning frame 104 is slidably connected to a lifting rope positioning roller 106 through a sliding cavity. The positioning pull rope 105 is connected to the outer side of the lifting rope positioning roller 106. The lifting rope positioning roller 106 slides along the bidirectional sliding positioning frame 104 through a conveyor belt or other similar components. The positioning pull rope 105 is transmitted upward or downward along the top of the corresponding lifting arm 107, so that the prefabricated parts can be lifted or lowered. At the same time, the corresponding lifting arm 107 can be deflected along the transportation equipment body 101 to adjust the position of the positioning pull rope 105.

[0037] like Figure 2-Figure 6 As shown, the corresponding tilt protection assembly 2 includes an auxiliary positioning rod 212 rotatably mounted on both sides of the corresponding lifting arm 107, two electric position-changing clamping blocks 202 are fixedly mounted on both sides of the auxiliary positioning rod 212, one side of the two electric position-changing clamping blocks 202 is rotatably connected to two external gear rings 206, two two-way connecting rods 207 are fixedly connected between the two external gear rings 206, a fixed block 211 is fixedly mounted on the outer center of one of the two-way connecting rods 207, the interior of the fixed block 211 is fixedly connected to a first rotating wheel 208, one side of the two external gear rings 206 is fixedly connected to the same number of second rotating wheels 209 through an auxiliary rotating rod, an auxiliary connecting rope 210 is installed for transmission between the two second rotating wheels 209 and the first rotating wheel 208, and the first Two sets of auxiliary pull ropes 205 are fixedly connected to the two sides of the rotating wheel 208. When the first rotating wheel 208 shakes, the first rotating wheel 208 drives the two external gear rings 206 to rotate along the electric transposition clamping block 202 through the fixed block 211 and the two-way connecting rod 207. The two external gear rings 206 drive the second rotating wheels 209 connected to them to rotate, and the two second rotating wheels 209 are transmitted through the auxiliary connecting rope 210 on the first rotating wheel 208. The rotation of the two is relatively stable, and the rotational force caused by the swing of the first rotating wheel 208 is relatively even. An auxiliary spring is fixedly connected between the external gear ring 206 and the electric transposition clamping block 202. The external gear ring 206 is set in a rotational limit state along the surface of the electric transposition clamping block 202 by the elastic force of the auxiliary spring, such as Fig.10 , the corresponding lifting arm 107 deflects along the transport equipment body 101, and when the position of the positioning rope 105 is adjusted, since the length of the built-in gear transmission belt 405 remains unchanged, when the built-in gear transmission belt 405 changes its position, due to the limit and elastic force of the auxiliary spring, the external gear ring 206 will not deflect due to the position adjustment of the built-in gear transmission belt 405, thereby preventing the first rotating wheel 208 from rotating, causing the wrapped outer frame 301 to drive the positioning rope 105 and the prefabricated part to shake, and similarly the control valve The door 404 is tight as a valve and will not deflect with the position deflection of the built-in gear transmission belt 405, so it will not affect the deflection of the auxiliary clamping assembly 4. The two sets of auxiliary pull ropes 205 are arranged in an axisymmetric state about the center line of the wrapped outer frame 301, and the first rotating wheel 208 is arranged in a deflected state along the center line. The two sets of auxiliary pull ropes 205 can deflect along the center line more stably, and the first rotating wheel 208 is better to follow the deflection according to the swing direction between the positioning pull rope 105 and the wrapped outer frame 301;

[0038] The corresponding tilt protection assembly 2 also includes an auxiliary limit frame 201, the positioning rope 105 passes through the auxiliary limit frame 201 from the corresponding lifting arm 107, and two limit output frames 203 are fixedly connected to the two sides of the auxiliary limit frame 201. The two sides of the auxiliary limit frame 201 are rotatably connected to two corresponding rotating rods 204 through the two limit output frames 203. The corresponding rotating rods 204 are fixedly installed on one side of the external gear ring 206. The two corresponding rotating rods 204 pass through one side of the auxiliary limit frame 201 and are fixedly connected with the same number of limit rope collection rings 303. The outer sides of the two limit rope collection rings 303 are connected with the same number of internal ropes 302, and the two internal ropes 303 are connected to the same number of internal ropes 303. 02 The line exiting directions on the limiting rope receiving ring 303 are set in opposite states, and the line exiting positions of the two built-in pull ropes 302 from the limiting rope receiving rings 303 connected to them are opposite, one line exits toward the side of the corresponding lifting arm 107, and the other line exits toward the side away from the corresponding lifting arm 107. When the positioning pull rope 105 shakes, and the wrapped outer frame 301 contacts the positioning pull rope 105 and swings with the positioning pull rope 105, one of the two built-in pull ropes 302 will always be gathered along the limiting rope receiving ring 303 according to the swinging direction, and then it can trigger the pushing ring 305 to squeeze the limiting airbag 304, so that the limiting airbag 304 increases the distance between it and the positioning pull rope 105 Friction force, the rope transmission speed limiting component 3 also includes a limiting airbag 304, the limiting airbag 304 is fixedly installed on the inner wall of the wrapped outer frame 301, and a spring expansion block 306 is fixedly connected between the limiting airbag 304 and the side wall of the wrapped outer frame 301. The built-in pull rope 302 passes through one side of the auxiliary limiting frame 201 and enters the wrapped outer frame 301. The two built-in pull ropes 302 are arranged in an axially symmetrical state about the center line of the wrapped outer frame 301, and the built-in pull rope 302 is located on one side of the inside of the wrapped outer frame 301 and is fixedly connected with a push ring 305, and the push ring 305 is located below the limiting airbag 304, and there is no contact between the spring expansion block 306 and the built-in pull rope 302 The limiting airbag 304 is normally attached to the outside of the positioning rope 105, and the pushing ring 305 does not contact the positioning rope 105. When the positioning rope 105 shakes, the wrapped outer frame 301 can quickly follow the positioning rope 105 to swing in the same direction, and the spring expansion block 306 is against one side of the limiting airbag 304, so that the limiting airbag 304 is limited by the spring expansion block 306 when it expands, so that the internal gas of the limiting airbag 304 drives the limiting airbag 304 to expand toward one side of the positioning rope 105, giving the positioning rope 105 a greater friction force, while slowing down the relative change of the limiting airbag 304 toward the side of the spring expansion block 306;

[0039] As the preform body 501 is relatively tilted during transportation, the first rotating wheel 208 drives the corresponding rotating rod 204 through the auxiliary pull rope 205 to rotate accordingly along the inside of the auxiliary limit frame 201 under the limit of the limit output frame 203, and the corresponding rotating rod 204 drives the limit rope ring 303 to rotate at the same time. The two limit rope rings 303 drive the built-in pull rope 302 to perform a convergence movement according to the rotation direction and rotation angle of the corresponding rotating rod 204. At this time, the built-in pull rope 302 drives the push ring 305 to converge along the line. The limiting airbag 304 is squeezed in the direction, and the limiting airbag 304 is compressed and expanded to squeeze the surface of the positioning rope 105, thereby increasing the friction between the positioning rope 105 and the positioning rope 105. When the positioning rope 105 shakes, the speed of transporting the bridge prefabricated component 5 along the corresponding lifting arm 107 is automatically slowed down to avoid the shaking of the prefabricated component caused by the downward transmission of the prefabricated component too fast, thereby improving the stability of transportation and automatically adjusting the transportation speed of the prefabricated component according to the tilt and swing amplitude of the prefabricated component. There is no need for the staff to pay attention to the situation of the prefabricated component all the time, and even newcomers can operate it, making the operation relatively simple.

[0040] like Figure 7-Figure 9 As shown, the rope transmission speed limiting assembly 3 includes a wrapped outer frame 301, the positioning pull rope 105 is slidably installed inside the wrapped outer frame 301, and two sets of auxiliary pull ropes 205 are installed above the rope transmission speed limiting assembly 3;

[0041] The auxiliary clamping assembly 4 includes an internal gear transmission belt 405 meshingly connected to the outside of the external gear ring 206, and the side of the internal gear transmission belt 405 away from the external gear ring 206 is meshingly connected to the control valve 404, and the outer side of the control valve 404 is rotatably connected to a connecting frame 403 fixedly installed in the inner cavity of the corresponding lifting arm 107, and one side of the connecting frame 403 is rotatably connected to an auxiliary adjustment block 401. When the bridge prefabricated component 5 tilts or swings during transportation, the wrapped outer frame 301 immediately moves synchronously with the positioning rope 105, and the first rotating wheel 208 drives the second rotating wheel 209 and the external gear ring 206 to rotate relative to each other along the electric transposition clamping block 202 by following the deflection angle and orientation of the bridge prefabricated component 5 through the auxiliary rope 205 on the wrapped outer frame 301, and the external gear ring 206 drives the internal gear transmission belt 405 to rotate, relying on the internal gear transmission belt 405 to mesh with the external gear ring 206 and the control valve 404. , causing the control valve 404 to rotate along the connecting frame 403 according to the rotation direction of the external gear ring 206, and the control valve 404 is used to control the rotation direction of the auxiliary adjustment block 401. For example, when the prefabricated body 501 tilts toward one side of the rope positioning rod 402, the auxiliary adjustment block 401 rotates clockwise, and the rope between the rope positioning rod 402 and the bridge prefabricated component 5 is tightened, causing the bridge prefabricated component 5 to be pushed back to its original position and restored to a vertical state. Conversely, when the prefabricated body 501 tilts toward the side away from the rope positioning rod 402, the auxiliary adjustment block 401 rotates counterclockwise, and the rope between the rope positioning rod 402 and the bridge prefabricated component 5 is tightened, and the bridge prefabricated component 5 is pulled back to its original position and restored to a vertical state, thereby performing corresponding control according to the transmission angle and direction of the bridge prefabricated component, reducing the shaking of the prefabricated component, avoiding contact with obstacles on the lifting route, and being detrimental to the safety of surrounding personnel and equipment, and improving the stability of the installation;

[0042] An auxiliary spring is fixedly connected between the external gear ring 206 and the electric transposition clamping block 202. The external gear ring 206 is arranged in a rotationally limited state along the surface of the electric transposition clamping block 202 by the elastic force of the auxiliary spring. Fig.10, the corresponding lifting arm 107 deflects along the transport equipment body 101, and when the position of the positioning rope 105 is adjusted, since the length of the built-in gear transmission belt 405 remains unchanged, when the built-in gear transmission belt 405 changes its position, due to the limit and elastic force of the auxiliary spring, the external gear ring 206 will not deflect due to the position adjustment of the built-in gear transmission belt 405, thereby preventing the first rotating wheel 208 from rotating, causing the wrapped outer frame 301 to drive the positioning rope 105 and the prefabricated part to shake, and similarly controlling Valve 404 is a tight valve and will not deflect as the position of the built-in gear transmission belt 405 deflects, and will not affect the deflection of the auxiliary clamping assembly 4. The auxiliary pull rope 205 is arranged in an axially symmetrical state about the center line of the wrapped outer frame 301, and the first rotating wheel 208 is arranged in a deflected state along the center line. The two groups of auxiliary pull ropes 205 can deflect along the center line more stably, and the first rotating wheel 208 can better follow the deflection according to the swinging direction between the positioning pull rope 105 and the wrapped outer frame 301.

[0043] In this embodiment, Figure 1-Figure 2 As shown, the bridge prefabricated component 5 includes a prefabricated component body 501, and the side of the prefabricated component body 501 facing the auxiliary adjustment block 401 is connected to a rope positioning rod 402 through a first hook, and the rope positioning rod 402 is fixedly installed on one side of the auxiliary adjustment block 401. A top positioning frame 503 is fixedly installed on the side of the prefabricated component body 501 away from the side positioning frame 502, and the top of the top positioning frame 503 is connected to the bottom of the side where the positioning rope 105 passes through the wrapped outer frame 301 through a second hook. When the prefabricated component body 501 is ready to be lifted, it is first placed on the ground. The staff needs to check the performance of the lifting device, including the mechanical parts, drive components, and rope components of the crane, to determine the prefabricated component body. The center of gravity of 501 is located at the top of the top positioning frame 503, and the second hook is installed on the top of the positioning rope 105 along the corresponding lifting arm 107. Then, the positioning rope 105 lifts the prefabricated body 501 on one side of the top positioning frame 503, and two first hooks are installed on both sides of the side positioning frame 502. The rope positioning rod 402 lifts the side positioning frame 502 through the two first hooks, so that the prefabricated body 501 is lifted as a whole, and the prefabricated body 501 needs to be paused after a certain height from the ground to check the stability of the lifting device and the prefabricated body 501. After confirming that there is no error, continue to lift, maintain a steady and uniform lifting speed, and reduce the shaking of the prefabricated parts;

[0044] The rope positioning rod 402 rotates along the connection of the connecting frame 403 to rotate the prefabricated body 501 with the connection of the positioning rope 105 and the top positioning frame 503 as the center point, so that the prefabricated body 501 can be transported to a specified area for installation perpendicular to the ground. At this time, the bottom of the prefabricated body 501 is limited by the clamping force provided by the rope positioning rod 402 through the first hook, and the top of the prefabricated body 501 is limited by the clamping force provided by the positioning rope 105 through the second hook, thereby improving the stability of the prefabricated body 501 during transportation, reducing the tilting and shaking amplitude of the prefabricated body 501, and improving the safety of prefabricated transportation;

[0045] Since the preform body 501 is clamped by the rope positioning rods 402 on both sides, the preform body 501 is limited and cannot swing along the two second hooks, and the preform body 501 can only swing along the direction between the rope positioning rods 402 and the positioning pull rope 105. At the same time, due to the limitation of the second hooks and the rope positioning rods 402, the preform body 501 swings with a smaller amplitude toward the side away from the auxiliary adjustment block 401, that is, the swinging direction of the preform body 501 is the direction in which the first rotating wheel 208 deflects along the electric position shifting clamping block 202.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0047] "Comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0048] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A bridge precast member lifting device, comprising a lifting transmission assembly (1), the lifting transmission assembly (1) comprising a transport equipment body (101), one side of the transport equipment body (101) being hinged with a corresponding lifting arm (107), and a side of the corresponding lifting arm (107) away from the transport equipment body (101) being slidably connected with a positioning rope (105), characterized in that: A corresponding tilt protection component (2) and an auxiliary clamping component (4) are installed on one side of the lifting transmission component (1); a rope transmission speed limiting component (3) is installed below the corresponding tilt protection component (2); and a bridge prefabricated component (5) is installed on one side of the auxiliary clamping component (4); The corresponding tilt protection assembly (2) comprises an auxiliary positioning rod (212) rotatably mounted on both sides of the corresponding lifting arm (107), two electric transposition clamping blocks (202) being fixedly mounted on both sides of the auxiliary positioning rod (212), one side of the two electric transposition clamping blocks (202) being rotatably connected to two external gear rings (206), two bidirectional connection plug rods (207) being fixedly connected between the two external gear rings (206), a fixed block (211) being fixedly mounted on the outer center of one of the bidirectional connection plug rods (207), the interior of the fixed block (211) being fixedly connected to a first rotating wheel (208), one side of the two external gear rings (206) being fixedly connected to the same number of second rotating wheels (209) via an auxiliary rotating rod, an auxiliary connecting rope (210) being transmitted and mounted between the two second rotating wheels (209) and the first rotating wheel (208), and two sets of auxiliary pull ropes (205) being fixedly connected on both sides of the first rotating wheel (208); The rope transmission speed limiting assembly (3) comprises a wrapped outer frame (301), the positioning pull rope (105) is slidably mounted inside the wrapped outer frame (301), and the two sets of auxiliary pull ropes (205) are mounted above the rope transmission speed limiting assembly (3); The auxiliary clamping assembly (4) comprises an internal gear transmission belt (405) meshingly connected to the outside of the external gear ring (206); a side of the internal gear transmission belt (405) away from the external gear ring (206) is meshingly connected to a control valve (404); the outside of the control valve (404) is rotatably connected to a connecting frame (403) fixedly mounted in the inner cavity of a corresponding lifting arm (107); and one side of the connecting frame (403) is rotatably connected to an auxiliary adjustment block (401).

2. A bridge prefabricated component lifting device according to claim 1, characterized in that: An auxiliary spring is fixedly connected between the external gear ring (206) and the electric transposition clamping block (202); the external gear ring (206) is arranged in a rotationally limited state along the surface of the electric transposition clamping block (202) by the elastic force of the auxiliary spring.

3. A bridge prefabricated component lifting device according to claim 2, characterized in that: The two groups of auxiliary pull ropes (205) are arranged in an axisymmetric state with respect to the center line of the wrapped outer frame (301), and the first rotating wheel (208) is arranged in a deflected state along the center line.

4. A bridge prefabricated component lifting device according to claim 1, characterized in that: The lifting and transmission component (1) also includes a positioning support rod (102) fixedly installed above the transportation equipment body (101), and one side of the positioning support rod (102) is fixedly connected to a bidirectional sliding positioning frame (104) with sliding cavities on both sides, and a transmission component (103) for transportation is installed at the bottom of the transportation equipment body (101).

5. A bridge prefabricated component lifting device according to claim 4, characterized in that: The interior of the bidirectional sliding positioning frame (104) is slidably connected to a rope positioning roller (106) via a sliding cavity, and the positioning pull rope (105) is looped around the outside of the rope positioning roller (106).

6. The bridge prefabricated component lifting device according to claim 1, characterized in that: The bridge prefabricated component (5) comprises a prefabricated component body (501), a side of the prefabricated component body (501) facing the auxiliary adjustment block (401) being connected to a rope positioning rod (402) via a first hook, and the rope positioning rod (402) being fixedly mounted on one side of the auxiliary adjustment block (401).

7. A bridge prefabricated component lifting device according to claim 6, characterized in that: A top positioning frame (503) is fixedly mounted on one side of the preform body (501) away from the side positioning frame (502), and the top of the top positioning frame (503) is connected to the bottom of the side where the positioning rope (105) passes through the wrapped outer frame (301) through a second hook.

8. A bridge prefabricated component lifting device according to claim 7, characterized in that: The corresponding tilt protection assembly (2) further comprises an auxiliary limit frame (201), the positioning rope (105) passes through the auxiliary limit frame (201) from the corresponding lifting arm (107), two limit output frames (203) are fixedly connected to the two sides of the auxiliary limit frame (201), and two corresponding rotating rods (204) are rotatably connected to the two limit output frames (203) on the two sides of the auxiliary limit frame (201), and the corresponding rotating rods (204) are fixedly mounted on one side of the external gear ring (206).

9. A bridge prefabricated component lifting device according to claim 8, characterized in that: The two corresponding rotating rods (204) pass through one side of the auxiliary limiting frame (201) and are fixedly connected to the same number of limiting rope collecting rings (303); the same number of built-in pull ropes (302) are wound around the outer sides of the two limiting rope collecting rings (303); and the two built-in pull ropes (302) are arranged on the limiting rope collecting rings (303) with their outlet directions in opposite states.

10. A bridge prefabricated component lifting device according to claim 9, characterized in that: The rope transmission speed limiting component (3) further comprises a limiting airbag (304), wherein the limiting airbag (304) is fixedly mounted on the inner wall of the wrapped outer frame (301), a spring expansion block (306) is fixedly connected between the limiting airbag (304) and the side wall of the wrapped outer frame (301), the built-in pull rope (302) passes through one side of the auxiliary limiting frame (201) and enters the wrapped outer frame (301), and a push ring (305) is fixedly connected to the side of the built-in pull rope (302) located inside the wrapped outer frame (301), the push ring (305) is located below the limiting airbag (304), and the spring expansion block (306) and the built-in pull rope (302) are arranged in a non-contact state.

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