Lifting device

Abstract

The utility model discloses a lifting device, and relates to the technical field of bridge construction, the lifting device is used for lifting a basin type support, the lifting device comprises a support arranged on a bridge pier and an adjusting platform arranged on the support, a hydraulic assembly is fixedly arranged on the adjusting platform, the hydraulic assembly is connected with a lifting appliance, the lifting appliance is used for being connected with the basin type support, and the basin type support is arranged on the lifting appliance. The hydraulic assembly lifts the basin-type support through the lifting appliance and adjusts the position of the adjusting platform relative to the support so as to adjust the installation position of the basin-type support. According to the lifting device, the time of occupying the tower crane can be shortened, and the adjusting precision and efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a lifting device. Background Art

[0002] The bearing is one of the important components of the bridge, and plays a role in supporting and transmitting the load. The bridge structure bears various forms of loads for a long time, such as structural gravity, vehicle load, wind load, earthquake action, etc. As one of the important components of the bridge, the bearing is responsible for effectively transmitting these loads. At present, in the bearing system of bridges in my country, the most widely used are plate rubber bearings, pot rubber bearings and spherical steel bearings; for bridges with larger spans, pot rubber bearings and spherical steel bearings are usually used; considering the cost factor, pot rubber bearings are more popular. Pot rubber bearings can effectively transmit vertical loads, horizontal loads and rotational effects under static action.

[0003] During the construction of a bridge, the bridge piers are first constructed, and then the supporting stones are constructed on the piers. Then, the pot-type rubber bearings (hereinafter referred to as pot-type bearings) are installed on the supporting stones. Finally, the bridge deck is installed on the pot-type bearings to complete the construction of the bridge. Since the piers usually have a certain height, the pot-type bearings need to be lifted to a certain height, placed on the top surface of the supporting stones, and adjusted in position to complete the installation of the pot-type bearings. In the prior art, a tower crane is used to lift and adjust the position of the pot-type bearing, which takes a long time for the tower crane. In addition, since the lifting and swinging amplitude of the tower crane is large when adjusting the position, the adjustment accuracy is low, and it is difficult to control and inefficient. Utility Model Content

[0004] The purpose of the present application is to provide a lifting device that can reduce the time occupied by the tower crane and improve the adjustment accuracy and efficiency.

[0005] An embodiment of the present application provides a lifting device for lifting a pot-type support, comprising a bracket arranged on a bridge pier and an adjusting platform arranged on the bracket, a hydraulic component is fixedly arranged on the adjusting platform, a sling is connected to the hydraulic component, the sling is used to connect to the pot-type support, the hydraulic component lifts the pot-type support through the sling, and adjusts the position of the adjusting platform relative to the bracket to adjust the installation position of the pot-type support.

[0006] As an implementable manner, the lifting device further includes a leveling component disposed on the bracket, and the leveling component is used to level the pot-type support after the pot-type support is lifted to a preset height.

[0007] As an implementable method, the leveling assembly includes multiple leveling screws threadedly connected to the bracket, one end of the leveling screws is abutted against the top surface of the pot-type support, and the pot-type support is placed horizontally by adjusting the relative positions of the multiple leveling screws relative to the bracket.

[0008] As an implementable manner, the hydraulic assembly includes a through-type jack disposed on a side of the adjustment platform away from the bracket and a threaded steel column connected to the through-type jack, wherein the threaded steel column passes through the adjustment platform and is connected to the sling.

[0009] As an implementable method, the adjustment platform includes two beams spaced apart on a bracket and a support plate connected to the beams, a through-type jack is arranged on the support plate, and a threaded steel column passes through the support plate and is connected to the sling.

[0010] As an implementable manner, the two beams are connected by a connecting plate, and after the position of the pot-type support is adjusted, the ends of the beams are connected to the brackets by U-shaped clips.

[0011] As an implementable manner, the bracket is a rectangular parallelepiped structure formed by interconnecting a plurality of horizontal bars and a plurality of vertical bars.

[0012] As an implementable manner, the crossbeam of the adjustment platform is mounted on the crossbar, and both ends of the crossbeam extend out of the crossbar, and the distance that the crossbeam extends out of the crossbar is between 10-20 cm.

[0013] As an implementable manner, the rectangular parallelepiped structure is erected on the outer periphery of the pot-type support, and the distance from the outer edge of the pot-type support is between 8-12 cm.

[0014] As an implementable manner, a plurality of steel wire ropes are distributed on the outer peripheral edge of the sling, and the other ends of the steel wire ropes are respectively connected to the pot-type supports.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The lifting device provided in the present application is used to lift a pot-type bearing, including a bracket arranged on the pier and an adjustment platform arranged on the bracket, a hydraulic component is fixedly arranged on the adjustment platform, wherein the position of the adjustment platform relative to the bracket is adjustable, so that the position of the hydraulic component relative to the bracket is adjustable, and a sling is connected to the hydraulic component, and the sling is used to connect with the pot-type bearing. The hydraulic component lifts the pot-type bearing through the sling, and when the hydraulic component lifts the pot-type bearing to a preset height through the sling, the position of the adjustment platform relative to the bracket is adjusted, thereby adjusting the installation position of the pot-type bearing. During the installation of the pot-type bearing, only the tower crane is needed to lift the pot-type bearing onto the pier, which reduces the time occupied by the tower crane during the installation of the pot-type bearing. In addition, the installation position of the pot-type bearing is adjusted by adjusting the adjustment platform, and the adjustment accuracy and efficiency are also high. Therefore, the lifting device of the embodiment of the present application can reduce the time occupied by the tower crane and improve the adjustment accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 One of the structural schematic diagrams of a lifting device provided in an embodiment of the present application;

[0019] Figure 2 A second structural schematic diagram of a lifting device provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of a sling provided in an embodiment of the present application.

[0021] Icons: 100-lifting device; 110-bracket; 111-cross bar; 112-vertical bar; 120-adjusting platform; 121-cross beam; 122-support plate; 124-connecting plate; 130-hydraulic assembly; 131-through jack; 132-threaded steel column; 140-spreading device; 141-lifting ear; 142-wire rope; 150-leveling assembly; 151-leveling screw; 200-pot support; 300-grouting material. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] The present application embodiment provides a lifting device 100, such as Figure 1 and Figure 2 As shown, it is used to lift the basin support 200, including a bracket 110 arranged on the pier and an adjusting platform 120 arranged on the bracket 110, a hydraulic component 130 is fixedly arranged on the adjusting platform 120, and the hydraulic component 130 is connected to a sling 140, and the sling 140 is used to be connected to the basin support 200, the hydraulic component 130 lifts the basin support 200 through the sling 140, and adjusts the position of the adjusting platform 120 relative to the bracket 110 to adjust the installation position of the basin support 200.

[0028] The lifting device 100 provided in the embodiment of the present application is arranged on the bridge pier and is used to adjust the position of the pot-type support 200 placed on the bridge pier. Specifically, the lifting device 100 in the embodiment of the present application includes a bracket 110 arranged on the bridge pier and an adjustment platform 120 arranged on the bracket 110. The bracket 110 serves as a support member of the adjustment platform 120. The position of the adjustment platform 120 relative to the bracket 110 is adjustable, that is, the adjustment platform 120 can move on the bracket 110. A hydraulic component 130 is fixedly arranged on the adjustment platform 120. The hydraulic component 130 is connected to the pot-type support 200 through a sling 140. After the hydraulic component 130 lifts the pot-type support 200 to a preset height, when the adjustment platform 120 moves relative to the bracket 110, the hydraulic component 130 is driven to move, thereby driving the pot-type support 200 to move. After the position is determined, the pot-type support 200 is placed on the bridge pier to achieve the position of the pot-type support 200.

[0029] Specifically, when the lifting device 100 of the embodiment of the present application is working, first the tower crane lifts the pot-type support 200 and places it on the bridge pier, and then the lifting device 100 of the embodiment of the present application is placed on the pot-type support 200, so that the pot-type support 200 is located inside the bracket 110; then the hydraulic assembly 130 and the hoist 140 are used to lift the pot-type support 200 to a preset height, and the position of the adjustment platform 120 relative to the bracket 110 is adjusted so that the pot-type support 200 is located directly above the installation position; then, the installation materials are placed at the installation position, and the pot-type support 200 is lowered to complete the installation of the pot-type support 200.

[0030] During the installation of the pot-type support 200, only the tower crane is needed to lift the pot-type support 200 and place it on the bridge pier, thereby reducing the occupancy time of the tower crane. In addition, the installation position of the pot-type support 200 is adjusted by adjusting the adjustment platform 120, with high adjustment accuracy and efficiency.

[0031] The specific structure of the sling 140 is not limited in the present embodiment, for example, Figure 1 and Figure 3 As shown, the hanger 140 comprises a lifting lug 141 and a channel steel connected to both sides of the lifting lug 141, and the two channel steels are arranged in parallel. The lifting lug 141 comprises four steel plates with a thickness of 25 mm welded end to end to form a columnar square box.

[0032] Among them, the preset height is not limited in the embodiment of the present application, and can be as small as possible on the basis of being able to be adjusted and leveled. For example, the distance between the lifting height and the top surface of the pier can be between 5-10 cm.

[0033] The lifting device 100 provided in the present application is used to lift a basin-type support 200, and includes a bracket 110 arranged on a bridge pier and an adjusting platform 120 arranged on the bracket 110, wherein a hydraulic component 130 is fixedly arranged on the adjusting platform 120, wherein the position of the adjusting platform 120 relative to the bracket 110 is adjustable, so that the position of the hydraulic component 130 relative to the bracket 110 is adjustable, and the hydraulic component 130 is connected to a sling 140, and the sling 140 is used to be connected to the basin-type support 200, and the hydraulic component 130 lifts the basin-type support 200 through the sling 140. When the hydraulic component 130 lifts the basin-type support 200 to a preset height through the sling 140, the position of the adjusting platform 120 relative to the bracket 110 is adjusted, thereby realizing the adjustment of the installation position of the basin-type support 200. During the installation of the pot-type support 200, only the tower crane is needed to lift the pot-type support onto the bridge pier, which reduces the time occupied by the tower crane during the installation of the pot-type support 200. In addition, the installation position of the pot-type support 200 can be adjusted by adjusting the adjustment platform 120, with high adjustment accuracy and efficiency. Therefore, the lifting device 100 of the embodiment of the present application can reduce the time occupied by the tower crane and improve the adjustment accuracy and efficiency.

[0034] Optional, such as Figure 1 and Figure 2 As shown, the lifting device 100 further includes a leveling assembly 150 disposed on the bracket 110 , and the leveling assembly 150 is used to level the pot support 200 after the pot support 200 is lifted to a preset height.

[0035] The lifting device 100 includes a leveling assembly 150. The leveling assembly 150 levels the pot support 200 after the pot support 200 is lifted to a preset height, so that the pot support 200 is horizontal. At this time, the grouting material 300 is poured into the installation area of ​​the pot support 200 on the supporting pad stone. Since the grouting material 300 is a gel-like substance, under the action of gravity, after the grouting material 300 is poured, the surface of the grouting material 300 is horizontal. After the pot support 200 is leveled at the preset height position and descends to the surface of the grouting material 300, the pressure on the grouting material 300 is relatively uniform. In the prior art, wedge-shaped pads are used to keep the pot support 200 horizontal. When the upper surface of the pot support 200 is horizontal, the lower surface of the pot support 200 has uneven pressure on the grouting material 300 in the horizontal direction due to the wedge-shaped pads. In the embodiment of the present application, the pot support 200 is placed horizontally through the leveling assembly 150, and the pressure on the grouting material 300 is more uniform.

[0036] In one possible implementation of the embodiment of the present application, Figure 1 and Figure 2As shown, the leveling assembly 150 includes a plurality of leveling screws 151 threadedly connected to the bracket 110, one end of the leveling screws 151 abuts against the top surface of the pot support 200, and the pot support 200 is placed horizontally by adjusting the relative positions of the plurality of leveling screws 151 relative to the bracket 110.

[0037] The leveling assembly 150 of the embodiment of the present application is a plurality of leveling screws 151, which are threadedly connected to the bracket 110, and one end of which is against the top surface of the pot-type support 200. Each leveling screw 151 is against the top surface of the pot-type support 200, so that the leveling assembly 150 and the pot-type support 200 have multiple contact points. By adjusting the positions of the plurality of leveling screws 151 relative to the bracket 110, the leveling screws 151 exert downward force on a certain position of the pot-type support 200 to adjust the height of a certain position. The plurality of leveling screws 151 respectively adjust the height of multiple positions of the pot-type support 200. With the help of a level meter, the surface of the pot-type support 200 is made level.

[0038] Specifically, the number of the leveling screw rods 151 is not limited in the present embodiment. For example, Figure 2 As shown, there are four leveling screw rods 151, and the four leveling screw rods 151 are respectively abutted against the four corners of the basin support 200, so that the leveling component 150 and the basin support 200 include four abutment points, and the four abutment points are evenly distributed on the basin support 200, which is convenient for adjusting the basin support 200.

[0039] Optional, such as Figure 1 and Figure 2 As shown, the hydraulic assembly 130 includes a through-type jack 131 disposed on the side of the adjustment platform 120 away from the bracket 110 and a threaded steel column 132 connected to the through-type jack 131 , and the threaded steel column 132 passes through the adjustment platform 120 and is connected to the hanger 140 .

[0040] The hydraulic assembly 130 uses a through-type jack 131 and a threaded steel column 132, which can facilitate the connection of the hydraulic assembly 130, and the threaded steel column 132 only needs to be inserted into the through-type jack 131. In addition, the threaded steel column 132 is also conveniently connected to the hanger 140. After the threaded steel column 132 passes through the lifting lug 141, a nut can be used to complete the connection of the threaded steel column 132 to the hanger 140.

[0041] Specifically, the specific specifications of the through-type jack 131 are not limited in the embodiment of the present application. For example, an 80-ton through-type jack 131 used at a bridge construction site can be used; the threaded steel column 132 can be made of 32 mm precision-rolled threaded steel.

[0042] In one possible implementation of the embodiment of the present application, Figure 2As shown, the adjustment platform 120 includes two beams 121 spaced apart on the bracket 110 and a support plate 122 connected to the beams 121 , a through-type jack 131 is disposed on the support plate 122 , and a threaded steel column 132 passes through the support plate 122 and is connected to the sling 140 .

[0043] Two cross beams 121 and a support plate 122 are used as a platform, and the support plate 122 is used as a placement table. The cross beams 121 are erected on the bracket 110, which simplifies the structure of the adjustment platform 120, and the cross beams 121 can be made of building materials used in bridge construction, which is convenient for material acquisition. Specifically, the cross beam 121 can be made of 14a I-beam steel, and the support plate 122 can be made of 4cm thick steel plates at the bridge construction site.

[0044] There is a certain spacing distance between the two cross beams 121 , which may be between 45-55 cm, and for example, may be 50 cm, to provide space for the threaded steel column 132 and also allow the adjustment platform 120 to have a certain width.

[0045] Optional, such as Figure 2 As shown, the two cross beams 121 are connected by a connecting plate 124 . After the position of the pot support 200 is adjusted, the ends of the cross beams 121 are connected to the bracket 110 via a U-shaped buckle.

[0046] In order to strengthen the fixation of the two cross beams 121 , a connecting plate 124 is provided at the position where the two cross beams 121 are not provided with the supporting plate 122 , and the connecting plate 124 is welded flush with the top surface or the bottom surface of the I-beam 14a .

[0047] After the basin support 200 is located directly above the installation position, the installation materials are placed at the installation position, and the basin support 200 is lowered to complete the installation of the basin support 200. In order to avoid the adjustment platform 120 from shifting during the process of lowering the basin support 200 or installing the materials, after the position of the basin support 200 is adjusted, the embodiment of the present application uses a U-shaped clip to connect the end of the beam 121 and the bracket 110, so that the beam 121 is fixed to the bracket 110, thereby avoiding the adjustment platform 120 from shifting after the position of the basin support 200 is adjusted, resulting in adjustment failure.

[0048] In one possible implementation of the embodiment of the present application, Figure 1 and Figure 2 As shown, the bracket 110 is a rectangular parallelepiped structure formed by connecting a plurality of horizontal bars 111 and a plurality of vertical bars 112 to each other.

[0049] A rectangular parallelepiped structure formed by connecting a plurality of cross bars 111 and vertical bars 112 to each other is used as the bracket 110, so that the structure of the bracket 110 is simple and easy to set up. Among them, the vertical bars 112 are made of 14a I-beams, and the cross bars 111 are made of 10*10cm angle steel or 14a I-beams. The cross bars 111 and the vertical bars 112 are welded, and all welds are fully welded to ensure the firmness of the bracket 110. In order to improve the stability of the bracket 110, an oblique bar with a certain angle to the cross bars 111 and the vertical bars 112 can be welded on the side of the bracket 110. The oblique bar can support the cross bars 111 and the vertical bars 112, thereby improving the stability of the bracket 110.

[0050] In addition, a steel plate with a thickness of 1 cm and a length and width of 20 cm respectively may be welded at the end of the vertical rod 112 contacting the bridge pier as a bottom support to increase the contact area between the vertical rod 112 and the bridge pier and improve the stability of the bracket 110 .

[0051] Optionally, the crossbeam 121 of the adjustment platform 120 is mounted on the crossbar 111 , and both ends of the crossbeam 121 extend out of the crossbar 111 , and the distance that the crossbeam 121 extends out of the crossbar 111 is between 10-20 cm.

[0052] The distance that the cross beam 121 extends out of the cross bar 111 is between 10-20 cm, so that when the position of the adjustment platform 120 is adjusted, a certain margin is left for the adjustment distance, thereby improving the safety of the adjustment process.

[0053] It is understandable that when the tower crane places the pot-type support 200 on the bridge pier, it is placed at the installation position. Due to the precision angle of the tower crane, the pot-type support 200 deviates from the installation. However, the deviation distance is small, so the distance required to be adjusted is not large, and it is a small adjustment.

[0054] In one achievable manner of the embodiment of the present application, the rectangular parallelepiped structure is erected on the outer periphery of the basin support 200, and the distance from the outer edge of the basin support 200 is between 8-12 cm.

[0055] The rectangular structure of the bracket 110 is erected on the periphery of the basin support 200, so that the basin support 200 is located between the brackets 110. In order to facilitate the adjustment of the position of the basin support 200, the plane formed by the horizontal bar 111 and the vertical bar 112 of the bracket 110 can be spaced from the outer edge of the basin support 200. Specifically, the interval is between 8-12 cm.

[0056] It should be noted that the basin support 200 is also square in shape. When the bracket 110 is placed on the periphery of the basin support 200, the basin support 200 is placed corresponding to the length and width of the bracket 110, and the interval is the distance between the outer edge of the basin support 200 and the inner edge of the bracket 110.

[0057] Optionally, a plurality of steel wire ropes 142 are distributed on the outer peripheral edge of the sling 140 , and the other ends of the steel wire ropes 142 are respectively connected to the pot-type supports 200 .

[0058] In order to facilitate the connection between the sling 140 and the pot-type support 200, a plurality of steel wire ropes 142 are distributed on the outer peripheral edge of the sling 140, and the steel wire ropes 142 are wound into a ring shape to facilitate the connection with the pot-type support 200. Specifically, the sling 140 is provided with mounting holes for the installation of the steel wire ropes 142. When the sling 140 is two channel steels, mounting holes are respectively provided at both ends of the two channel steels, and the horizontal distance of the mounting holes is 100 mm from the edge, and the upper and lower distances are 80 mm from the edge, and the hole diameter is 100 mm.

[0059] From the above, it can be seen that the I-beams, jacks and steel plates used in the lifting device 100 of the embodiment of the present application are all commonly used building materials in bridge construction, so that the lifting device 100 of the embodiment of the present application can be constructed using local materials.

[0060] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lifting device for lifting a pot-type support, characterized in that: It includes a bracket arranged on the pier and an adjusting platform arranged on the bracket, the adjusting platform is fixedly provided with a hydraulic component, the hydraulic component is connected with a sling, the sling is used to be connected with a pot-type support, the hydraulic component lifts the pot-type support through the sling, and adjusts the position of the adjusting platform relative to the bracket to adjust the installation position of the pot-type support.

2. The lifting device according to claim 1, characterized in that: It also includes a leveling component arranged on the bracket, and the leveling component is used to level the pot support after the pot support is lifted to a preset height.

3. The lifting device according to claim 2, characterized in that: The leveling assembly includes a plurality of leveling screws threadedly connected to the bracket, one end of the leveling screws abuts against the top surface of the pot-type support, and the pot-type support is placed horizontally by adjusting the relative positions of the plurality of leveling screws relative to the bracket.

4. The lifting device according to claim 1, characterized in that: The hydraulic assembly comprises a through-type jack arranged on a side of the adjustment platform away from the bracket and a threaded steel column connected to the through-type jack, wherein the threaded steel column passes through the adjustment platform and is connected to the sling.

5. The lifting device according to claim 4, characterized in that: The adjustment platform comprises two cross beams spaced apart on the bracket and a support plate connected to the cross beams, the through-type jack is arranged on the support plate, and the threaded steel column passes through the support plate and is connected to the sling.

6. The lifting device according to claim 5, characterized in that: The two cross beams are connected by a connecting plate. After the position of the pot-type support is adjusted, the ends of the cross beams are connected to the brackets by U-shaped buckles.

7. The lifting device according to claim 1, characterized in that: The bracket is a rectangular parallelepiped structure formed by connecting a plurality of cross bars and a plurality of vertical bars to each other.

8. The lifting device according to claim 7, characterized in that: The crossbeam of the adjustment platform is mounted on the crossbar, and both ends of the crossbeam extend out of the crossbar, and the distance that the crossbeam extends out of the crossbar is between 10-20 cm.

9. The lifting device according to claim 7, characterized in that: The rectangular parallelepiped structure is erected on the outer periphery of the basin-type support, and the distance from the outer edge of the basin-type support is between 8-12 cm.

10. The lifting device according to claim 1, characterized in that: A plurality of steel wire ropes are distributed on the outer peripheral edge of the sling, and the other ends of the steel wire ropes are respectively connected to the pot-type supports.

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