Temporary steel truss supporting device for pier capping beam construction

Abstract

The utility model provides a temporary steel truss supporting device for pier capping beam construction. The temporary steel truss supporting device comprises a moving mechanism, a supporting mechanism and a lifting mechanism. The moving mechanism comprises a moving platform and Mecanum wheels, and the Mecanum wheels enable the moving mechanism to move transversely; the supporting mechanism comprises a supporting piece, a first telescopic piece and a second telescopic device, the supporting piece vertically penetrates through the moving platform and can move up and down relative to the moving platform, and the first telescopic piece is located between the supporting piece and the moving platform to control the supporting piece to move up and down; during moving, the first telescopic piece enables the supporting piece to be suspended; when the truss is supported, the first telescopic piece enables the supporting piece to make contact with the ground. The lower end of the second telescopic piece is connected with the supporting piece, and the upper end of the second telescopic piece is connected with the lifting mechanism. The lifting mechanism comprises a lifting device and a cross beam clamping device, and the lifting device is used for supporting the steel truss; the beam clamping device is located on the upper portion of the lifting device and used for clamping the steel truss beam to fix the steel truss.

Description

Technical Field

[0001] The utility model relates to the technical field of steel truss supports, in particular to a temporary steel truss support device for bridge pier cap beam construction. Background Art

[0002] A large number of steel trusses are used in the construction of bridge pier cap beams, and the trusses are connected to the ground through steel truss support devices. The weight of all temporary facilities and the weight of the cap beam during the construction of the bridge pier cap beams are borne by the temporary steel truss support devices.

[0003] Existing temporary steel truss support devices mostly use steel pipe scaffolding as support, and the scaffolding has the problems of long construction period and long disassembly period. Utility Model Content

[0004] The purpose of the utility model is to provide a temporary steel truss support device for bridge pier cap beam construction, aiming to solve the problem of long construction period and long disassembly period of building scaffolding as temporary steel truss support device in the prior art. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A temporary steel truss support device for bridge pier cap construction comprises a moving mechanism, a supporting mechanism and a lifting mechanism.

[0006] The supporting mechanism includes a supporting member and a first telescopic member. The supporting member is vertically penetrated through the moving mechanism. The supporting member can move up and down relative to the moving mechanism. The first telescopic member is arranged on the upper part of the moving platform. One end of the first telescopic member is connected to the supporting member. The first telescopic member can drive the supporting member to move up and down relative to the moving mechanism.

[0007] The lower end of the lifting mechanism is connected to the upper end of the supporting mechanism, the height of the lifting mechanism is adjustable, and the top of the lifting mechanism is used to support the steel truss.

[0008] Preferably, the mobile mechanism is provided with a support leg, which includes a connecting member and a support seat; one end of the connecting member is hinged to the mobile platform, and the other end is hinged to the support seat; the connecting member can rotate up and down relative to the mobile platform, and the support seat can rotate up and down relative to the connecting member; the mobile platform and the connecting member are connected by a first hydraulic rod, and the extension of the first hydraulic rod can make the connecting member rotate relative to the mobile platform; a second hydraulic rod is provided between the connecting member and the support seat, and the extension of the second hydraulic rod can make the support seat rotate relative to the connecting member.

[0009] Preferably, the mobile mechanism includes a mobile platform and a Mecanum wheel. A driving device is provided in the mobile platform, and the driving device is rotatably connected to the Mecanum wheel. The driving device can rotate the Mecanum wheel, thereby causing the mobile platform to move laterally.

[0010] Preferably, the lifting mechanism includes a lifting device and a beam clamping device arranged on the top of the lifting device; the lifting device is used to support the steel truss; and the beam clamping device is used to clamp and fix the bottom beam of the steel truss.

[0011] Preferably, a second telescopic member is provided at the upper end of the support member, and the upper end of the second telescopic member is connected to the bottom of the lifting device, so that the lifting device is always horizontal.

[0012] Preferably, a slide groove is provided on the top of the lifting device, and the beam clamping device includes a horizontal guide assembly and a fixing member. The horizontal guide assembly is rotatably arranged in the slide groove, and two fixing members are slidably arranged in the slide groove. The fixing members are sleeved on the horizontal guide assembly and threadedly matched with the horizontal guide assembly. When the horizontal guide assembly rotates, the distance between the two fixing members can be adjusted so that the two fixing members can clamp and fix the bottom beam of the steel truss.

[0013] Preferably, a stopper is provided above the fixing member, and the stopper is used to limit the vertical movement of the steel truss.

[0014] The beneficial effects are: 1. By setting up a moving mechanism, the temporary steel truss support device can be moved in the work site without the need for construction or disassembly.

[0015] 2. The first telescopic member is provided so that the support member can move up and down relative to the moving mechanism. When supporting the steel truss, the first telescopic member enables the support member to directly contact the ground and bear the load transferred by the steel truss; when moving, the first telescopic member enables the support member to be suspended in the air to facilitate the movement of the moving mechanism.

[0016] 3. By setting up a height-adjustable lifting mechanism, the top of the lifting mechanism can support steel trusses of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0018] Figure 2 This is a schematic structural diagram of a specific embodiment of the utility model when the supporting legs are supporting the ground;

[0019] Figure 3 It is a right side view of a specific embodiment of the utility model;

[0020] Figure 4 is along Figure 3 Sectional view of AA in the middle;

[0021] Figure 5 It is a structural schematic diagram of a moving mechanism and a part of a supporting mechanism of a specific embodiment of the utility model;

[0022] Figure 6 yes Figure 5 A partial enlarged view of the X in the middle;

[0023] Figure 7 It is a structural schematic diagram of a support member and a second telescopic member in a specific embodiment of the utility model.

[0024] In the figure: 100, moving mechanism; 110, moving platform; 120, Mecanum wheel; 130, supporting leg; 131, connecting member; 132, supporting seat; 140, first hydraulic rod; 150, second hydraulic rod; 200, supporting mechanism; 210, supporting member; 220, first telescopic member; 230, second telescopic member; 300, lifting mechanism; 310, lifting device; 320, beam clamping device; 321, horizontal guide assembly; 322, fixing member; 323, stopper. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 7 As shown, a temporary steel truss support device for bridge pier cap beam construction includes a moving mechanism 100, a supporting mechanism 200 and a lifting mechanism 300.

[0027] In this embodiment, the mobile mechanism 100 includes a mobile platform 110 and Mecanum wheels 120. Two Mecanum wheels 120 are arranged on the left side of the mobile platform 110, and two Mecanum wheels 120 are arranged on the right side of the mobile platform 110. A driving device is arranged in the lower part of the mobile platform 110, and the driving device is specifically an electric motor; there are four driving devices, and the four driving devices are respectively rotatably connected to the corresponding Mecanum wheels 120. The four driving devices control the four Mecanum wheels 120 to rotate at different speeds, thereby causing the mobile platform 110 to move laterally.

[0028] In this embodiment, two support legs 130 are provided on the front side of the mobile mechanism 100, and two support legs 130 are provided on the rear side of the mobile mechanism 100; the support legs 130 include a connecting member 131 and a support seat 132; one end of the connecting member 131 is hinged to the mobile platform 110, and the other end is hinged to the support seat 132; the connecting member 131 can rotate up and down relative to the mobile platform 110, and the support seat 132 can rotate up and down relative to the connecting member 131; when supporting the steel truss, the support seat 132 contacts the ground to limit the movement of the mobile mechanism 100, and the support seat 132 contacts the ground to prevent the mobile mechanism 100 from tipping over. The auxiliary support member 210 supports the steel truss; a first hydraulic rod 140 is provided between the connecting member 131 and the mobile platform 110, and the two ends of the first hydraulic rod 140 are respectively connected to the connecting member 131 It is rotatably connected to the mobile platform 110, and the first hydraulic rod 140 causes the connecting member 131 to rotate relative to the mobile platform 110 by telescoping; when the mobile mechanism 100 moves, the first hydraulic rod 140 contracts to cause the connecting member 131 to rotate upward relative to the mobile platform 110, so as to prevent the supporting legs 130 from affecting the movement of the mobile mechanism 100; when supporting the truss, the first hydraulic rod 140 extends to control the connecting member 131 to rotate downward relative to the mobile platform 110; second hydraulic rods 150 are provided on both sides of the connecting member 131, and the two ends of the second hydraulic rod 150 are rotatably connected to the connecting member 131 and the support seat 132 respectively, and the second hydraulic rod 150 causes the support seat 132 to rotate relative to the connecting member 131 by telescoping, and the support seat 132 rotates to adjust the contact area between the bottom surface of the support seat 132 and the ground to the maximum.

[0029] The support mechanism 200 includes a support member 210 and a first telescopic member 220; there are two support members 210, which vertically penetrate and are movably inserted on the mobile mechanism 100, and the two support members 210 are symmetrical about the vertical plane where the left-right symmetry axis of the mobile mechanism 100 is located; the support member 210 can move up and down relative to the mobile mechanism 100; bosses are arranged on the left and right sides of the lower part of the support member 210, and the bosses are located above the mobile mechanism 100; the first telescopic member 220 is arranged between the lower end surface of the boss and the mobile mechanism 100, and the first telescopic member 220 supports the bosses to make the support member 210 move up and down relative to the mobile platform 110, and the first telescopic member 220 is specifically a jack; a bottom plate is fixedly arranged at the lower end of the support member 210, and the area of ​​the bottom plate is larger than the area of ​​the lower end surface of the support member 210. The bottom plate is used to increase the contact area between the support member and the ground, so as to improve the stability of the support member 210 when supporting the steel truss.

[0030] The lower part of the lifting mechanism 300 is connected to the upper end of the supporting mechanism 200 , the height of the lifting mechanism 300 is adjustable, and the top of the lifting mechanism 300 is used to support the steel truss.

[0031] In this embodiment, the lifting mechanism 300 includes a lifting device 310 and a beam clamping device 320; the lifting device 310 is specifically a scissor-type hydraulic lift; the top of the lifting device 310 supports the steel truss; a slide groove is provided at the top of the lifting device 310; the beam clamping device 320 includes a horizontal guide component 321 and a fixing member 322; the horizontal guide component 321 is rotatably arranged in the slide groove, and there are two fixing members 322, and the two fixing members 322 are slidably arranged in the slide groove, and the two fixing members 322 are sleeved on the horizontal guide component 321 and threadedly matched with the horizontal guide component 321; the slide groove limits the fixing member 322 to rotate with the horizontal guide component 321, and the horizontal guide component 321 rotates, and the horizontal guide component 321 drives the fixing member 322 to move along the slide groove by threadedly matching with the fixing member 322. Further, the rotation of the horizontal guide component 321 can adjust the spacing between the two fixing members 322 so that the two fixing members 322 can clamp and fix the beam at the bottom of the steel truss.

[0032] In this embodiment, a second telescopic member 230 is provided at the upper end of the support member 210, and the second telescopic member 230 is specifically an electric telescopic rod; the upper end of the second telescopic member 230 is connected to the lifting device 310; when the construction site is uneven and the upper end surfaces of two support members 210 with the same height are not in the same horizontal plane, the second telescopic member 230 at the upper ends of the two support members 210 is adjusted so that the planes of the upper ends of the second telescopic members 230 are in the same horizontal plane, thereby making the lifting device 310 always level.

[0033] In this embodiment, a stopper 323 is provided above the fixing member 322, and the stopper 323 is connected to the fixing member 322 by a screw; the screw rotates to make the stopper 323 move up and down relative to the fixing member 322 to clamp and fix the bottom cross beam of the steel truss, thereby limiting the vertical movement of the steel truss.

[0034] Working process: A temporary steel truss support device for a bridge pier cap beam, the initial state is as follows: the first telescopic member 220 is raised to make the lower end of the support member 210 suspended in the air; the first hydraulic rod 140 contracts to lift the support leg 130 upward; the two fixing members 322 are respectively located at the two ends of the slide groove; the stopper 323 is located at the highest position relative to the fixing member 322.

[0035] First, when the moving mechanism 100 moves, the first telescopic member 220 extends, and the boss at the bottom of the support member 210 moves upward synchronously with the extension of the support member 210, thereby causing the support member 210 to move upward. The extension of the first telescopic member 220 causes the lower end plane of the support member 210 to be suspended in the air and maintain a certain distance from the ground to facilitate the movement of the moving mechanism 100.

[0036] Subsequently, the driving device drives the Mecanum wheel 120 to rotate so that the mobile platform 110 moves to the specified position; then, the first hydraulic rod 140 is extended to rotate the connecting member 131 downward relative to the mobile platform 110, and the second hydraulic rod 150 rotates the support seat 132 by telescoping to adjust the contact area between the bottom surface of the support seat 132 and the ground to the maximum; then, the worker controls the first telescopic member 220 to shorten, and the boss at the bottom of the support member 210 moves downward synchronously with the shortening of the first telescopic member 220, thereby moving the support member 210 downward, and the shortening of the first telescopic member 220 causes the lower end plane of the support member 210 to contact the ground and bear the gravity load of the truss; at the same time, the worker adjusts the second telescopic member 230 to make the lifting device 310 in a horizontal state.

[0037] Secondly, the steel truss is lifted by a crane and placed on the top of the lifting device 310; then, the worker rotates the horizontal guide assembly 321 to make the two fixing parts 322 move relative to each other, and the distance between the two fixing parts 322 decreases and approaches the steel truss until the bottom cross beam of the steel truss is clamped, thereby limiting the horizontal movement of the steel truss; then, the worker screws the screw to make the stop block 323 move downward relative to the fixing part 322 and finally clamp the bottom cross beam of the steel truss, thereby limiting the vertical movement of the steel truss; then, the lifting device 310 is raised to lift the steel truss to the specified height and support it.

[0038] After the construction of the bridge pier cap is completed, the lifting device 310 descends, and the steel truss descends synchronously with the lifting device 310; after the lifting device 310 descends to the lowest point, the worker screws the screw to make the block 323 release the bottom beam of the steel truss, and then the worker rotates the horizontal guide assembly 321 to increase the distance between the two fixing members 322, and no longer clamps the bottom beam of the steel truss; then, the steel truss is lifted by a crane; then the first telescopic member 220 is extended to make the support member 210 suspended in the air, and the first hydraulic rod 140 is shortened to lift the support leg 130; finally, the driving device drives the Mecanum wheel 120 to rotate to move the mobile platform 110 to the specified position.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A temporary steel truss support device for bridge pier cap beam construction, characterized by: It comprises a moving mechanism (100), a supporting mechanism (200) and a lifting mechanism (300); The support mechanism (200) comprises a support member (210) and a first telescopic member (220); the support member (210) is vertically penetrated on the moving mechanism (100); the support member (210) can move up and down relative to the moving mechanism (100); the first telescopic member (220) is arranged on the upper part of the moving platform (110); one end of the first telescopic member (220) is connected to the support member (210); the first telescopic member (220) can drive the support member (210) to move up and down relative to the moving mechanism (100); The lower end of the lifting mechanism (300) is connected to the upper end of the supporting mechanism (200), the height of the lifting mechanism (300) is adjustable, and the top of the lifting mechanism (300) is used to support the steel truss.

2. The temporary steel truss support device for bridge pier capping beam construction according to claim 1 is characterized by: The mobile mechanism (100) is provided with a support leg (130), and the support leg (130) comprises a connecting member (131) and a support seat (132); one end of the connecting member (131) is hinged to the mobile platform (110), and the other end is hinged to the support seat (132); the connecting member (131) can rotate up and down relative to the mobile platform (110), and the support seat (132) can rotate up and down relative to the connecting member (131); the mobile platform (110) and the connecting member (131) are connected via a first hydraulic rod (140), and the first hydraulic rod (140) can be extended and retracted to enable the connecting member (131) to rotate relative to the mobile platform (110); a second hydraulic rod (150) is provided between the connecting member (131) and the support seat (132), and the second hydraulic rod (150) can be extended and retracted to enable the support seat (132) to rotate relative to the connecting member (131).

3. The temporary steel truss support device for bridge pier capping beam construction according to claim 2 is characterized by: The mobile mechanism (100) comprises a mobile platform (110) and a Mecanum wheel (120). A driving device is provided in the mobile platform (110). The driving device is rotatably connected to the Mecanum wheel (120). The driving device can rotate the Mecanum wheel (120), thereby causing the mobile platform (110) to move laterally.

4. The temporary steel truss support device for bridge pier capping beam construction according to claim 1 is characterized by: The lifting mechanism (300) comprises a lifting device (310) and a beam clamping device (320) arranged on the top of the lifting device (310); the lifting device (310) is used to support the steel truss; and the beam clamping device (320) is used to clamp and fix the bottom beam of the steel truss.

5. The temporary steel truss support device for bridge pier capping beam construction according to claim 4 is characterized by: A second telescopic member (230) is provided at the upper end of the support member (210), and the upper end of the second telescopic member (230) is connected to the bottom of the lifting device (310), so that the lifting device (310) is always horizontal.

6. The temporary steel truss support device for bridge pier capping beam construction according to claim 5 is characterized by: A slide groove is provided at the top of the lifting device (310), and the beam clamping device (320) comprises a horizontal guide component (321) and a fixing component (322). The horizontal guide component (321) is rotatably arranged in the slide groove, and two fixing components (322) are slidably arranged in the slide groove. The fixing components (322) are sleeved on the horizontal guide component (321) and threadedly matched with the horizontal guide component (321). When the horizontal guide component (321) rotates, the distance between the two fixing components (322) can be adjusted so that the two fixing components (322) can clamp and fix the bottom beam of the steel truss.

7. The temporary steel truss support device for bridge pier capping beam construction according to claim 6 is characterized by: A stopper (323) is provided above the fixing member (322), and the stopper (323) is used to limit the movement of the steel truss in the vertical direction.

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