Bridge expansion joint rapid and accurate positioning installation device

Abstract

The utility model relates to bridge expansion joint mounting equipment technical field, especially bridge expansion joint quick and accurate positioning installation device. Its technical scheme includes a pair of bridge body and the expansion joint reserved slot of setting in bridge body end part. The utility model utilizes the cooperation of support, first adjusting mechanism, second adjusting mechanism, first hydraulic cylinder, second hydraulic cylinder and clamping mechanism etc. When using the device, first support is erected in the expansion joint reserved slot right above bridge body end part. Subsequently through first hydraulic cylinder promotes the support plate below to move down, lets the clamping plate of clamping mechanism to hold the comb tooth board formula expansion joint, and then starts second hydraulic cylinder, drives the clamping plate to the expansion joint and clamps tightly. Then push the slider adjustment horizontal position, in the grip handle push the vertical support plate adjustment longitudinal position, finally first hydraulic cylinder drives the expansion joint to slow down, makes bolt accurate to pass into bolt hole, avoids the dislocation caused by hoisting swing, and greatly promotes installation efficiency and accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge expansion joint installation equipment technical field especially, relates to a kind of bridge expansion joint rapid accurate positioning installation device. BACKGROUND

[0002] At present, after bridge building is completed, bridge connecting position (such as bridge span, bridge span and bridge pier), because temperature deformation and load displacement need to be released, expansion joint reserved slot will be preset, comb tooth plate expansion joint is usually installed in slot. Its core "comb tooth cross occlusion" structure is composed of fixed end of fixed bridge support side and movable end comb tooth plate interlaced on active support side, which can avoid beam extrusion cracking through the relative sliding between comb teeth.

[0003] In the bolt anchoring type comb tooth plate expansion joint structure, high-strength bolts specially passing through comb tooth plate bolt holes will be arranged in reserved slot, and the bolt is the core component for firm connection of comb tooth plate and bridge structure. In the prior art, multiple bolt holes are preset in comb tooth plate, and the hole position and hole diameter are accurately corresponding to the high-strength bolt in the reserved slot. When installing, the bolt is inserted into the hole and tightened according to the designed torque, so that stable installation can be realized.

[0004] Traditionally, for several hundred kilograms of heavy comb tooth plate, manual direct handling and positioning are difficult, and usually light hoist auxiliary installation is needed by means of hand-operated hoist, small electric hoist or hydraulic hoist. However, manual positioning and alignment are still needed. The core load-bearing components of hoist are mostly sling or lifting rope. During hoisting process, because comb tooth plate has weight, hoist is easy to sway due to inertia when lifting or translating (the swinging range of flexible sling and lifting rope is more obvious), which greatly increases the difficulty of manual positioning and alignment. It is easy to cause bolt hole and reserved bolt misalignment and difficult to accurately insert, which further leads to low installation efficiency. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a bridge expansion joint rapid accurate positioning installation device to improve the problem of low installation efficiency in the prior art, that is, bolt anchoring type comb tooth plate expansion joint is easy to produce inertial swing during sling hoisting when installing several hundred kilograms of heavy comb tooth plate, which leads to difficult manual positioning and alignment and bolt hole misalignment.

[0006] The bridge expansion joint rapid accurate positioning installation device provided by the present application adopts the following technical solution: The utility model provides a bridge expansion joint quick and accurate positioning installation device, including a pair of bridge body and the expansion joint reserved groove of setting in the end of bridge body, the inside installation of expansion joint reserved groove is a plurality of cross occlusion's comb tooth board type expansion joint, still include: support, place in the just above end of bridge body, the support is opposite with a pair of expansion joint reserved groove, fixedly connected in a pair of first sliding rail of support, first sliding rail all is equipped with first adjusting mechanism on, the bottom of first adjusting mechanism all is equipped with second adjusting mechanism, clamping mechanism is located just below second adjusting mechanism, and clamping mechanism is used for fixedly clamping comb tooth board type expansion joint, first hydraulic cylinder of installation in second adjusting mechanism drives clamping mechanism lifting movement.

[0007] By adopting the above technical scheme, Optionally, the first adjusting mechanism includes a sliding block slidingly sleeved on the first sliding rail, the bottom end of the sliding block is fixedly connected with a second sliding rail, one end of the second sliding rail is fixedly connected with an L-shaped clamping bracket clamping the support, and the L-shaped clamping bracket is rotatably connected with a roller tightly abutting against the outer wall of the support.

[0008] By adopting the above technical scheme, Optionally, the second adjusting mechanism includes a C-shaped sliding groove formed in the bottom of the second sliding rail, a pair of pulleys are rotatably connected in the C-shaped sliding groove, a vertical support plate is fixedly connected at the end of the C-shaped sliding groove and the middle of the pulley, and the outer wall of the vertical support plate is fixedly connected with the first hydraulic cylinder.

[0009] By adopting the above technical scheme, Optionally, the two ends of the pulley are provided with a plurality of rolling balls tightly abutting against the inner wall of the C-shaped sliding groove.

[0010] By adopting the above technical scheme, Optionally, the outer wall of the vertical support plate away from the first hydraulic cylinder is fixedly connected with a handle.

[0011] By adopting the above technical scheme, Optionally, the clamping mechanism includes a support plate provided at the bottom end of the first hydraulic cylinder, the middle of the support plate is fixedly sleeved with the piston rod of the first hydraulic cylinder, the upper surfaces of the two ends of the support plate are fixedly connected with a second hydraulic cylinder of a pair of synchronous switches, the piston rods of the second hydraulic cylinders are fixedly connected with clamping plates telescopically clamping the comb tooth board type expansion joint, and the side close to the comb tooth board type expansion joint of the clamping plate is provided with an anti-skid strip.

[0012] By adopting the above technical scheme, Optionally, the top end of the clamping plate is fixedly connected with a pair of clamping rods, the end of the clamping rod away from the clamping plate is fixedly connected with a clamping block, the two ends of the support plate are both provided with a pair of limiting grooves corresponding to the clamping block, and the clamping block is fixedly connected with a limiting protrusion clamped in the limiting groove.

[0013] By adopting the technical scheme, Optionally, a plurality of bolt holes are formed in the comb tooth plate expansion joint, and the inside of the expansion joint reserved groove is provided with a bolt corresponding to the bolt hole.

[0014] By adopting the technical scheme, To sum up, the present application has at least one of the following beneficial technical effects: The utility model discloses a support, first adjusting mechanism, second adjusting mechanism, first hydraulic cylinder, second hydraulic cylinder and clamping mechanism etc. cooperation of structure. When using the device, first, the support is put in the expansion joint reserved groove on the bridge body end. Then the first hydraulic cylinder pushes the support plate below to move down, and the clamping plate of the clamping mechanism clamps the comb tooth plate expansion joint, and then the second hydraulic cylinder is started to drive the clamping plate to close to the expansion joint and clamp. Then push the slider to adjust the horizontal position, and push the vertical support plate to adjust the vertical position. Finally, the first hydraulic cylinder drives the expansion joint to slowly descend, so that the bolt is accurately inserted into the bolt hole, avoiding misplacement caused by lifting and swinging, and greatly improving the installation efficiency and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure diagram of the bridge expansion joint fast and accurate positioning installation device is given. Figure 2 For Figure 2 Partial structure diagram. Figure 3 For Figure 2 Split cross-sectional structure diagram.

[0016] In the figure, 1, bridge body; 11, expansion joint reserved groove; 12, bolt; 2, comb tooth plate expansion joint; 21, bolt hole; 3, support; 31, first sliding rail; 4, second sliding rail; 41, slider; 42, L-shaped clamping frame; 43, roller; 44, C-shaped sliding groove; 45, vertical support plate; 46, pulley; 47, ball; 48, first hydraulic cylinder; 49, handle; 5, support plate; 51, second hydraulic cylinder; 52, limiting groove; 53, clamping plate; 54, anti-skid strip; 55, clamping rod; 56, clamping block; 57, limiting protrusion. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in combination with the accompanying Figure 1 to Figure 3 The present application is further described in detail below in combination with the accompanying

[0018] A bridge expansion joint rapid and accurate positioning installation device, referring to Figures 1 to 3 As shown, it comprises a pair of bridge bodies 1 and expansion joint reserved slots 11 opened at the end of the bridge body 1, which are used to accommodate and position the comb plate expansion joint 2 and provide space for its installation. A plurality of cross-biting comb plate expansion joints 2 are installed inside the expansion joint reserved slot 11. The comb plate expansion joint 2 adopts a cross-biting structure, which can release the bridge temperature deformation and load displacement by relative sliding between the combs, and avoid the extrusion cracking of the beam body. A support 3 is placed directly above the end of the bridge body 1, which is used to fixedly install the first sliding rail 31 and provide a stable support frame for the subsequent adjusting mechanism and clamping mechanism. The support 3 is opposite to a pair of expansion joint reserved slots 11; a pair of first sliding rails 31 are fixedly connected inside the support 3, which provide a guide rail for the sliding block 41 of the first adjusting mechanism to slide, and provide a guide rail for the second sliding rail 4 and the subsequent components to move horizontally. A pair of first sliding rails 31 are used to correspond to a pair of expansion joint reserved slots 11, and then install the comb plate expansion joint 2 in the corresponding expansion joint reserved slot 11. The first hydraulic cylinder 48 driving the clamping mechanism to move up and down is installed on the second adjusting mechanism, which can drive the supporting plate 5 and the clamping mechanism to move up and down, and realize the lifting movement and installation positioning of the comb plate expansion joint 2.

[0019] As shown in Figures 1 to 3 , the first adjusting mechanism is provided on the first sliding rail 31, which comprises a sliding block 41 slidingly sleeved on the first sliding rail 31. The sliding block 41 can slide along the first sliding rail 31, drive the second sliding rail 4 and the components below to move horizontally, and realize the horizontal position adjustment of the comb plate expansion joint 2. The bottom end of the sliding block 41 is fixedly connected with the second sliding rail 4, which provides a track for the pulley 46 of the second adjusting mechanism to slide, and bears the components of the vertical supporting plate 45 and the first hydraulic cylinder 48. The upper surface of one end of the second sliding rail 4 is fixedly connected with the L-shaped clamping frame 42 clamping the support 3, which plays a limiting and auxiliary stabilizing role for the sliding of the second sliding rail 4, preventing deviation during sliding. The end of the L-shaped clamping frame 42 away from the second sliding rail 4 is rotatably connected with the roller 43 tightly abutting the outer wall of the support 3, which converts the sliding friction between the L-shaped clamping frame 42 and the support 3 into rolling friction, making the second sliding rail 4 slide more smoothly with the sliding block 41.

[0020] In addition, as shown in Figure 2 and Figure 3As shown, the bottom of the first adjusting mechanism is provided with the second adjusting mechanism, the second adjusting mechanism comprises a C-shaped sliding groove 44 opened in the bottom of the second sliding rail 4, the C-shaped sliding groove 44 provides guidance for the sliding of the pulley 46, while limiting the pulley 46 from leaving the track, ensuring the stable operation of the second adjusting mechanism. A pair of pulleys 46 are rotatably connected inside the C-shaped sliding groove 44, the pulleys 46 can roll along the C-shaped sliding groove 44, driving the vertical support plate 45 and the upper part to move longitudinally, realizing the longitudinal position adjustment of the comb plate expansion joint 2. The inside of the C-shaped sliding groove 44 is provided with a vertical support plate 45 fixedly connected with the middle part of the pulley 46, the vertical support plate 45 can slide with the pulley 46 in the C-shaped sliding groove 44, driving the first hydraulic cylinder 48 and the clamping mechanism to move longitudinally. The outer wall of the vertical support plate 45 is fixedly connected with the first hydraulic cylinder 48, the two ends of the pulley 46 are provided with a plurality of rolling balls 47 tightly abutting against the inner wall of the C-shaped sliding groove 44, the rolling balls 47 reduce the friction between the pulley 46 and the inner wall of the C-shaped sliding groove 44, making the pulley 46 roll more smoothly, improving the flexibility of the longitudinal position adjustment. The outer wall of the vertical support plate 45 away from the first hydraulic cylinder 48 is fixedly connected with a handle 49, the handle 49 is held by the operator, facilitating the pushing of the vertical support plate 45 to drive the pulley 46 to slide in the C-shaped sliding groove 44, assisting in adjusting the longitudinal position.

[0021] It is worth mentioning that, as Figures 1 to 3 shown, the second adjusting mechanism is provided with a clamping mechanism directly below, the clamping mechanism is used for fixedly clamping the comb plate expansion joint 2, the clamping mechanism comprises a support plate 5 arranged at the bottom end of the first hydraulic cylinder 48, the support plate 5 provides mounting support for the second hydraulic cylinder 51 and the clamping plate 53, while transmitting the lifting power of the first hydraulic cylinder 48. The middle part of the support plate 5 is fixedly sleeved with the piston rod of the first hydraulic cylinder 48, the two ends of the support plate 5 are fixedly connected with a pair of second hydraulic cylinders 51 of the synchronous switch, a pair of second hydraulic cylinders 51 are designed for the synchronous switch, the piston rod is fixed with the clamping plate 53, and the clamping plate 53 can be driven to approach or away from the comb plate expansion joint 2, realizing the clamping or loosening action. The piston rod of the second hydraulic cylinder 51 is fixedly connected with the clamping plate 53 which can extend to clamp the comb plate expansion joint 2, the clamping plate 53 can extend to clamp the comb plate expansion joint 2 under the driving of the second hydraulic cylinder 51, and is a component directly contacting and clamping the comb plate expansion joint 2, ensuring that it does not shake during adjustment and installation. One side of the clamping plate 53 close to the comb plate expansion joint 2 is provided with an anti-skid strip 54, the anti-skid strip 54 increases the friction between the clamping plate 53 and the comb plate expansion joint 2, preventing the comb plate expansion joint 2 from slipping during clamping, and improving the clamping effect.

[0022] Further, as Figure 2 , Figure 3As shown, the top end of the clamping plate 53 is fixedly connected with a pair of clamping rods 55, and the end of the clamping rod 55 away from the clamping plate 53 is fixedly connected with a clamping block 56 corresponding to the limiting groove 52 of the support plate 5, and a limiting protrusion 57 is arranged on the clamping block 56, which is clamped into or separated from the limiting groove 52 with the movement of the clamping rod 55, and assists in positioning the clamping plate 53. The two ends of the support plate 5 are provided with a pair of limiting grooves 52 corresponding to the clamping block 56, and the limiting protrusion 57 on the clamping block 56 is clamped into the limiting groove 52, which limits and guides the movement of the clamping plate 53, prevents the clamping plate 53 from deviating, and ensures the clamping stability. The clamping block 56 is fixedly connected with the limiting protrusion 57 clamped into the limiting groove 52, and the limiting protrusion 57 can be clamped into the limiting groove 52 of the support plate 5, which further limits the movement range of the clamping plate 53, enhances the stability of the clamping mechanism when clamping the comb tooth plate type expansion joint 2, and avoids clamping deviation.

[0023] Further, as shown in the drawings, Figure 1 A plurality of bolt holes 21 are arranged on the comb tooth plate type expansion joint 2, and the bolt holes 21 are provided for the bolts 12 to pass through, thereby providing a connection point for anchoring the comb tooth plate type expansion joint 2. The inside of the expansion joint reserved groove 11 is provided with a bolt 12 corresponding to the bolt hole 21, the bolt 12 corresponds to the bolt hole 21 of the comb tooth plate type expansion joint 2, is tightened after passing through the bolt hole 21 according to the design torque, and realizes the firm connection between the comb tooth plate type expansion joint 2 and the bridge body 1.

[0024] The implementation principle of the embodiment of the present application is: When the bridge expansion joint rapid and accurate positioning installation device is used, the support 3 is first erected at the ends of a pair of bridge bodies 1, so that each support 3 is opposite to the corresponding expansion joint reserved groove 11. Then the comb tooth plate type expansion joint 2 is carried to the end position of the bridge body 1, and the comb tooth plate type expansion joint 2 is located on one side of the expansion joint reserved groove 11 and directly below the support plate 5. The first hydraulic cylinder 48 can be started, the first hydraulic cylinder 48 pushes the support plate 5 to approach the comb tooth plate type expansion joint 2, until a pair of opened clamping plates 53 clamp the two ends of the comb tooth plate type expansion joint 2. Then a pair of second hydraulic cylinders 51 are started synchronously, the piston rod of the second hydraulic cylinder 51 pushes the clamping plate 53 to approach the comb tooth plate type expansion joint 2, the anti-skid strip 54 on the inner side of the clamping plate 53 clamps the comb tooth plate type expansion joint 2, and at the same time the clamping rod 55 drives the limiting protrusion 57 on the clamping block 56 to be clamped into the limiting groove 52 of the support plate 5, so as to ensure the stability of the clamping mechanism.

[0025] Then the horizontal position of the comb tooth plate type expansion joint 2 can be adjusted by pushing the sliding block 41 to slide on the first sliding rail 31, and the L-shaped clamping frame 42 cooperates with the roller 43 to tightly adhere to the outer wall of the support 3 during the sliding process, so as to ensure the smooth sliding. If the longitudinal position needs to be adjusted, the vertical support plate 45 can be pushed by holding the handle 49, so that the pulley 46 slides in the C-shaped sliding groove 44 of the second sliding rail 4, and the ball 47 reduces the sliding friction, thereby further accurately adjusting the position of the comb tooth plate type expansion joint 2.

[0026] After the position is initially aligned, the first hydraulic cylinder 48 is started, the piston rod drives the support plate 5 and the clamped comb plate expansion joint 2 to slowly descend until the bolt hole 21 on the comb plate expansion joint 2 is initially aligned with the bolt 12 in the expansion joint reserved slot 11, then the position of the fine adjustment sliding block 41 and the vertical support plate 45 is adjusted to make the bolt 12 accurately pass through the bolt hole 21, and finally the fast and accurate positioning and installation of the comb plate expansion joint 2 is completed, avoiding the deviation caused by hoisting and shaking, and improving the installation efficiency and accuracy.

[0027] The embodiments of the specific embodiment are the preferred embodiments of the application, not limited to the protection scope of the application, wherein the same parts are indicated by the same reference signs. Therefore: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A rapid and precise positioning and installation device for bridge expansion joints, comprising a pair of bridge bodies (1) and expansion joint pre-reserved grooves (11) opened at the ends of the bridge bodies (1), wherein multiple interlocking comb-type expansion joints (2) are installed inside the expansion joint pre-reserved grooves (11), characterized in that, Also includes: The bracket (3) is placed directly above the end of the bridge body (1), and the bracket (3) is vertically opposite to a pair of expansion joint reserved grooves (11); A pair of first slide rails (31) are fixedly connected inside the bracket (3). Each of the first slide rails (31) is provided with a first adjustment mechanism, and each of the first adjustment mechanisms is provided with a second adjustment mechanism at its bottom. The clamping mechanism is located directly below the second adjustment mechanism and is used to fix and clamp the comb-tooth plate type expansion joint (2). The first hydraulic cylinder (48) is installed on the second adjustment mechanism to drive the clamping mechanism to move up and down.

2. The bridge expansion joint rapid and precise positioning and installation device according to claim 1, characterized in that, The first adjustment mechanism includes a slider (41) that is slidably sleeved on the first slide rail (31). The bottom end of the slider (41) is fixedly connected to the second slide rail (4). An L-shaped bracket (42) that clamps the bracket (3) is fixedly connected to the upper surface of one end of the second slide rail (4). The end of the L-shaped bracket (42) away from the second slide rail (4) is rotatably connected to a roller (43) that closely abuts against the outer wall of the bracket (3).

3. The bridge expansion joint rapid and precise positioning and installation device according to claim 2, characterized in that, The second adjustment mechanism includes a C-shaped groove (44) at the bottom of the second slide rail (4). A pair of pulleys (46) are rotatably connected inside the C-shaped groove (44). A vertical support plate (45) is provided inside the C-shaped groove (44) with its end fixedly connected to the middle of the pulley (46). The outer wall of the vertical support plate (45) is fixedly connected to the first hydraulic cylinder (48).

4. The bridge expansion joint rapid and precise positioning and installation device according to claim 3, characterized in that, Both ends of the pulley (46) are provided with balls (47) that closely abut against the inner wall of the C-shaped groove (44).

5. The bridge expansion joint rapid and precise positioning and installation device according to claim 3, characterized in that, A handle (49) is fixedly connected to the outer wall of the vertical support plate (45) away from the first hydraulic cylinder (48).

6. The bridge expansion joint rapid and precise positioning and installation device according to claim 1, characterized in that, The clamping mechanism includes a support plate (5) at the bottom of the first hydraulic cylinder (48). The middle part of the support plate (5) is fixedly sleeved with the piston rod of the first hydraulic cylinder (48). A pair of synchronously switched second hydraulic cylinders (51) are fixedly connected to the upper surfaces of both ends of the support plate (5). The piston rods of the second hydraulic cylinders (51) are fixedly connected to clamping plates (53) that telescopically clamp the comb-type expansion joint (2). The clamping plate (53) has an anti-slip strip (54) on the side close to the comb-type expansion joint (2).

7. The bridge expansion joint rapid and precise positioning and installation device according to claim 6, characterized in that, A pair of clamping rods (55) are fixedly connected to the top of each clamping plate (53). A clamping block (56) is fixedly connected to the end of each clamping rod (55) away from the clamping plate (53). A pair of limiting grooves (52) corresponding to the clamping blocks (56) are opened at both ends of the support plate (5). A limiting protrusion (57) that is inserted into the limiting groove (52) is fixedly connected to each clamping block (56).

8. The bridge expansion joint rapid and precise positioning and installation device according to claim 1, characterized in that, The comb-plate type expansion joint (2) is provided with multiple bolt holes (21), and the expansion joint reserved groove (11) is provided with bolts (12) corresponding to the bolt holes (21).

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