Assembly type steel trestle hoisting device

Abstract

The invention belongs to the technical field of hoisting equipment, and provides an assembly type steel trestle hoisting device which comprises a bottom frame, the bottom frame and a box body are connected through a horizontal adjusting assembly, a hoisting assembly is installed on the box body and a supporting rod and used for pulling a steel trestle part, and an adjusting type clamping assembly is installed at the bottom of a fixing plate and used for fixing the steel trestle part. The anti-torsion assembly controls the position of a steel trestle part when ascending and descending along with the fixing plate, the reinforcing assembly is in transmission connection with the horizontal adjusting assembly, and the device is stably fixed to the ground when the horizontal adjusting assembly works. According to the device, the steel trestle component can be conveniently and rapidly fixed, falling during hoisting can be avoided, the fixing plate and the steel trestle component always keep translational motion, torsion caused by external force can be effectively prevented, the steel trestle component is prevented from turning on one side, the hoisting corner can be adjusted in the horizontal plane, and the hoisting efficiency is improved. In addition, the device can be firmly fixed to the ground, so that the overall stability is higher, and the operation safety can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a prefabricated steel trestle hoisting device. Background Art

[0002] Hoisting refers to the general term for the installation and positioning of equipment by a crane or lifting mechanism. When installing a steel trestle, multiple sections of the bridge body need to be moved to the site and assembled using lifting equipment. The currently used steel trestle lifting device adjusts the position of the movable block through a set screw, thereby adjusting the position of the hook according to the width of the steel trestle segment, thereby achieving the lifting of the entire steel trestle segment, and using the set buffer sleeve to buffer the swinging wire rope during the lifting process, thereby reducing the swing amplitude and avoiding collision with workers or machines.

[0003] However, when the above-mentioned lifting device is in use, it is not convenient to quickly clamp the steel trestle components. During the lifting process, the components are easily shaken by external forces, resulting in tilting, and there is a risk of falling. In addition, the position of the device needs to be fixed in advance, and it is difficult to quickly fix it after the work station is transferred. It requires repeated positioning many times, which is time-consuming. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a prefabricated steel trestle hoisting device, aiming to solve the problems existing in the above-mentioned background technology.

[0005] The embodiment of the present invention is implemented as follows: an assembled steel trestle hoisting device includes a bottom frame and a box body arranged on the top of the bottom frame, and a support rod is fixedly installed on the box body, and also includes: A hoisting assembly, which is installed on the box and the support rods and driven by a motor arranged outside the box to pull the steel trestle components; An adjustable clamping assembly, which is installed at the bottom of the fixing plate in the lifting assembly to facilitate fixing the steel trestle components before and after lifting; An anti-twist assembly, which is arranged on the support rod and the fixing plate and controls the position of the steel trestle components when the fixing plate is raised or lowered; A horizontal adjustment component, which is mounted on the bottom frame and is also connected to the box body so as to adjust the angle of the hoisting in the horizontal plane; The reinforcement component is symmetrically arranged in the bottom frame, the reinforcement component is transmission-connected with the horizontal adjustment component, and the device is stably fixed on the ground when the horizontal adjustment component is working.

[0006] Preferably, the hoisting assembly includes a traction machine, a cable, a roller and a fixing plate; The roller is rotatably mounted on the top of the support rod, a cable is mounted on the roller, and a fixing plate is fixedly mounted on the end of the cable; The cable is wound around a traction machine arranged in the box body, and the cable is retracted and released when the traction machine rotates.

[0007] Preferably, the adjustable clamping assembly comprises a sleeve, a guide rod, an elastic member and a connecting hole; The sleeves are provided in plurality, the sleeves are hinged to the bottom of the fixing plate, and the sleeves are also connected to the elastic member installed at the bottom of the fixing plate; A guide rod is slidably mounted on the sleeve, and the sleeve and the guide rod are provided with connecting holes with the same aperture and are connected via an external pin shaft.

[0008] Preferably, the adjustable clamping assembly further comprises a clamping claw, a pull rod, a telescopic member and a controller; The abutting claws are symmetrically hinged to the ends of the guide rods, and a pull rod is hinged to the inner side of each abutting claw, and the pull rod is hinged to the free end of the telescopic member built into the guide rod; The guide rod is provided with a groove for the movement of the clamping claw and the pull rod; The telescopic member is also electrically connected to a controller installed on the side of the fixed plate, so as to change the angle of the abutting claw by adjusting the elongation of the telescopic member.

[0009] Preferably, the anti-twist assembly comprises a limit groove, a limit rod and a limit column; The limiting groove is arranged on the supporting rod, the limiting rod is slidably mounted on the fixing plate, one end of the limiting rod is fixedly mounted with a limiting column, and the limiting column is slidably connected with the limiting groove; A baffle is also installed at the end of the limiting rod to prevent the fixing plate from separating from the limiting rod during movement.

[0010] Preferably, the level adjustment assembly comprises a driving gear shaft, a driven gear shaft, an inner guide rail, an outer guide rail and a turntable; The driving gear shaft and the driven gear shaft are rotatably mounted on the bottom frame, and the driving gear shaft is meshed with the driven gear shaft; The top of the driven gear shaft is meshed with the inner teeth of the turntable arranged at the bottom of the housing, so that the turntable and the housing are driven to rotate synchronously when the driven gear shaft rotates; The inner guide rail and the outer guide rail are arranged at the top of the bottom frame, the inner guide rail is slidably connected to the guide groove 1 at the bottom of the turntable, and the outer guide rail is slidably connected to the guide groove 2 at the bottom of the turntable.

[0011] Preferably, the reinforcement assembly comprises a horizontal shaft, a bevel gear set, a cam, a movable plate, a plunger and a spring; The horizontal shaft is rotatably mounted in the bottom frame, the horizontal shaft is transmission-connected to the driving gear shaft through a bevel gear set, and a cam is fixedly mounted on the horizontal shaft; The insertion rod is slidably installed at the bottom of the bottom frame, a movable plate is fixedly installed at the top of the insertion rod, the top of the movable plate abuts against the cam, and the bottom of the movable plate is connected with a spring installed in the bottom frame.

[0012] The assembled steel trestle hoisting device provided by the embodiment of the present invention has the following technical effects: (1) The adjustable clamping assembly is convenient for quickly fixing the steel trestle components, and the stable structure can prevent them from falling off during hoisting; (2) During the hoisting process, under the restriction of the anti-twist assembly, the fixed plate and the steel trestle components always maintain horizontal movement, which can effectively prevent twisting when subjected to external force and avoid the steel trestle components from tipping over; (3) Not only can the lifting angle be adjusted in the horizontal plane, but the device can also be firmly fixed on the ground, making the overall stability higher and improving the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional structural diagram of an assembled steel trestle hoisting device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a clamping claw in an assembled steel trestle hoisting device provided by an embodiment of the present invention; Figure 3 A schematic structural diagram of an anti-twist assembly in a prefabricated steel trestle hoisting device provided in an embodiment of the present invention; Figure 4 A half-section view of a bottom frame and a turntable in an assembled steel trestle hoisting device provided in an embodiment of the present invention; Figure 5 A three-dimensional structural diagram of a turntable in an assembled steel trestle hoisting device provided in an embodiment of the present invention; In the attached drawings: 1- bottom frame; 2- box body; 3- support rod; 4- traction machine; 5- cable; 6- roller; 7- fixed plate; 8- sleeve; 9- guide rod; 10- elastic member; 11- connecting hole; 12- clamping claw; 13- pull rod; 14- telescopic member; 15- limit groove; 16- limit rod; 17- limit column; 18- controller; 19- driving gear shaft; 20- driven gear shaft; 21- inner guide rail; 22- outer guide rail; 23- turntable; 24- horizontal axis; 25- bevel gear set; 26- cam; 27- movable plate; 28- plug rod; 29- spring; 30- walking wheel; 31- guide groove one; 32- guide groove two; 100- hoisting assembly; 200- adjustable clamping assembly; 300- anti-twist assembly; 400- horizontal adjustment assembly; 500- reinforcement assembly. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0016] like Figure 1-Figure 5 As shown, it is a structural diagram of an assembled steel trestle lifting device provided by an embodiment of the present invention, comprising a bottom frame 1, a lifting assembly 100, an adjustable clamping assembly 200, an anti-twist assembly 300, a horizontal adjustment assembly 400 and a reinforcement assembly 500. A box body 2 is arranged at the top of the bottom frame 1, and a support rod 3 is fixedly installed on the box body 2. The lifting assembly 100 is installed on the box body 2 and the support rod 3, and is driven by a motor arranged outside the box body to pull the steel trestle components. The adjustable clamping assembly 200 is installed in the lifting assembly 100. The bottom of the fixed plate 7 is arranged to fix the steel trestle components before and after lifting. The anti-twist component 300 is arranged on the support rod 3 and the fixed plate 7, and controls the position of the steel trestle components when the fixed plate 7 is raised and lowered. The horizontal adjustment component 400 is installed on the bottom frame 1, and the horizontal adjustment component 400 is also connected to the box body 2 to facilitate adjusting the lifting angle in the horizontal plane. The reinforcement component 500 is symmetrically arranged in the bottom frame 1, and the reinforcement component 500 is transmission-connected to the horizontal adjustment component 400, and the device is stably fixed on the ground when the horizontal adjustment component 400 is working.

[0017] In one embodiment of the present invention, a walking wheel 30 is also installed at the bottom of the bottom frame 1. In addition, the walking wheel 30 can also be replaced by a track wheel, which will not be described in detail here. In addition, when the device is in use, the fixing work of the device can be automatically achieved during the process of pre-adjusting the turning angle.

[0018] like Figure 1 As shown, as a preferred embodiment of the present invention, the hoisting assembly 100 includes a traction machine 4, a cable 5, a roller 6 and a fixing plate 7; The roller 6 is rotatably mounted on the top of the support rod 3, a cable 5 is mounted on the roller 6, and a fixing plate 7 is fixedly mounted on the end of the cable 5; The cable 5 is wound around the traction machine 4 arranged in the box body 2, and the cable 5 is retracted and released when the traction machine 4 rotates.

[0019] In one example of the present invention, when the steel trestle is hoisted, the traction machine 4 pulls the cable 5 to move along the roller 6, the roller 6 rotates along the support rod 3, and the fixed plate 7 drives the steel trestle components to move synchronously in the height direction.

[0020] like Figure 1 As shown, as another preferred embodiment of the present invention, the adjustable clamping assembly 200 includes a sleeve 8, a guide rod 9, an elastic member 10 and a connecting hole 11; The sleeve 8 is provided in plurality, and the sleeve 8 is hinged at the bottom of the fixing plate 7, and the sleeve 8 is also connected to the elastic member 10 installed at the bottom of the fixing plate 7; A guide rod 9 is slidably mounted on the sleeve 8 . The sleeve 8 and the guide rod 9 are provided with connecting holes 11 with the same aperture and are connected via an external pin shaft.

[0021] In an example of the present invention, when clamping, the guide rod 9 is pushed outward, the elastic member 10 is elastically deformed by force, and is inserted into the connecting hole 11 through a pin shaft to fix the sleeve 8 and the guide rod 9.

[0022] like Figure 1 and Figure 2 As shown, as another preferred embodiment of the present invention, the adjustable clamping assembly 200 further includes a clamping claw 12, a pull rod 13, a telescopic member 14 and a controller 18; The abutting claws 12 are symmetrically hinged to the ends of the guide rods 9, and a pull rod 13 is hinged to the inner side of each abutting claw 12, and the pull rod 13 is hinged to the free end of the telescopic member 14 built into the guide rod 9; The guide rod 9 is provided with a groove for the movement of the clamping claw 12 and the pull rod 13; The telescopic member 14 is also electrically connected to a controller 18 installed on the side of the fixing plate 7 , so that the angle of the abutting claw 12 can be changed by adjusting the extension of the telescopic member 14 .

[0023] In one example of the present invention, the telescopic member 14 can be actually used with linear drive devices such as air cylinders, hydraulic cylinders, electric cylinders and electric telescopic rods. After adjusting the clamping position of the end of the guide rod 9, the controller 18 is operated to control the extension of the telescopic member 14. The telescopic member 14 pushes the pull rod 13 to swing in a plane, and the pull rod 13 pulls the clamping claw 12 at the corresponding position to swing along the guide rod 9, thereby completing the fixation of the top of the steel trestle component.

[0024] like Figure 1 and Figure 3 As shown, as another preferred embodiment of the present invention, the anti-twist assembly 300 includes a limiting groove 15, a limiting rod 16 and a limiting column 17; The limiting groove 15 is arranged on the support rod 3, the limiting rod 16 is slidably mounted on the fixing plate 7, one end of the limiting rod 16 is fixedly mounted with a limiting column 17, and the limiting column 17 is slidably connected with the limiting groove 15; A baffle is also installed at the end of the limiting rod 16 to prevent the fixing plate 7 from being separated from the limiting rod 16 when moving.

[0025] In one example of the present invention, when the steel trestle components are hoisted, the limit rod 16 is lifted and lowered synchronously with the fixed plate 7, and during this process the fixed plate 7 also slides along the limit rod 16, and the limit column 17 arranged at the end of the limit rod 16 slides along the limit groove 15, thereby preventing the fixed plate 7 and the steel trestle components from twisting and tilting during lifting, lifting or rotation.

[0026] like Figure 1 , Figure 4 and Figure 5 As shown, as another preferred embodiment of the present invention, the horizontal adjustment assembly 400 includes a driving gear shaft 19, a driven gear shaft 20, an inner guide rail 21, an outer guide rail 22 and a turntable 23; The driving gear shaft 19 and the driven gear shaft 20 are rotatably mounted on the bottom frame 1, and the driving gear shaft 19 is meshed with the driven gear shaft 20; The top of the driven gear shaft 20 meshes with the inner teeth of the rotating disk 23 arranged at the bottom of the housing 2, so that when the driven gear shaft 20 rotates, the rotating disk 23 and the housing 2 are driven to rotate synchronously; The inner guide rail 21 and the outer guide rail 22 are arranged at the top of the bottom frame 1 , the inner guide rail 21 is slidably connected to the guide groove 1 31 at the bottom of the turntable 23 , and the outer guide rail 22 is slidably connected to the guide groove 2 32 at the bottom of the turntable 23 .

[0027] In one example of the present invention, the driving gear shaft 19 is driven by an independently arranged motor. When the motor is working, it drives the driving gear shaft 19 to rotate along the bottom frame 1. Since the driving gear shaft 19 is engaged with the driven gear shafts 20 on both sides, and the driven gear shafts 20 are engaged with the turntable 23, the driven gear shafts 20, the turntable 23 and the box body 2 can be driven to rotate in sequence when the driving gear shaft 19 rotates, wherein the turntable 23 slides along the inner guide rail 21 and the outer guide rail 22 at the same time, thereby reducing friction while ensuring smooth rotation of the box body 2.

[0028] like Figure 4 As shown, as another preferred embodiment of the present invention, the reinforcement assembly 500 includes a horizontal shaft 24, a bevel gear set 25, a cam 26, a movable plate 27, a plug rod 28 and a spring 29; The horizontal shaft 24 is rotatably mounted in the bottom frame 1, and the horizontal shaft 24 is transmission-connected to the driving gear shaft 19 via a bevel gear set 25. A cam 26 is also fixedly mounted on the horizontal shaft 24. The insert rod 28 is slidably mounted at the bottom of the bottom frame 1 , a movable plate 27 is fixedly mounted on the top of the insert rod 28 , the top of the movable plate 27 abuts against the cam 26 , and the bottom of the movable plate 27 is connected to a spring 29 installed in the bottom frame 1 .

[0029] In one example of the present invention, after the device moves to the specified position, the rotation of the driving gear shaft 19 can drive the horizontal shafts 24 on both sides and the cam 26 to rotate synchronously through the bevel gear set 25. When the cam 26 rotates, it pushes the movable plate 27 and the insertion rod 28 to slide along the bottom frame 1. The insertion rod 28 is embedded in the ground and intermittently applies force. Under the action of pressure and soil resistance, the insertion rod 28 is greater than the elastic force of the spring 29, so that the entire device can be firmly fixed on the ground, ensuring the stability of the lifting device.

[0030] In summary, after the hoisting device is moved to the designated position, the guide rod 9 is pushed outward, the elastic member 10 is elastically deformed by force, and the sleeve 8 and the guide rod 9 are fixed by plugging the pin shaft into the connecting hole 11. The controller 18 is operated to control the elongation of the telescopic member 14. The telescopic member 14 pushes the pull rod 13 to swing in the plane, and the pull rod 13 pulls the corresponding position of the clamping claw 12 to swing along the guide rod 9, so as to complete the fixing work of the top of the steel trestle component. The traction machine 4 works The cable 5 is pulled to move along the roller 6, and the roller 6 rotates along the support rod 3. The fixed plate 7 drives the steel trestle parts to move synchronously in the height direction. The fixed plate 7 also slides along the limit rod 16, and the limit column 17 set at the end of the limit rod 16 slides along the limit groove 15. When the hoisting angle needs to be adjusted, the motor drives the driving gear shaft 19 to rotate along the bottom frame 1 when working. Since the driving gear shaft 19 is meshed with the driven gear shafts 20 on both sides, the driven gear shaft 20 and the turntable 23 are engaged. The meshing can drive the driven gear shaft 20, the turntable 23 and the box body 2 to rotate in sequence when the driving gear shaft 19 rotates. At the same time, the rotation of the driving gear shaft 19 can drive the horizontal shafts 24 and the cam 26 on both sides to rotate synchronously through the bevel gear set 25. The cam 26 pushes the movable plate 27 and the plug rod 28 to slide along the bottom frame 1 when rotating. The plug rod 28 is embedded in the ground and intermittently applies force to fix the device as a whole firmly on the ground. The adjustable clamping assembly 200 provided in the device is convenient for quickly fixing the steel trestle components, and the stable structure can avoid falling off during hoisting. During the hoisting process, under the restriction of the anti-twist assembly 300, the fixed plate 7 and the steel trestle components always keep horizontal motion, which can effectively prevent twisting when subjected to external force, and can avoid the steel trestle components from tipping over. Not only can the hoisting angle be adjusted in the horizontal plane, but the device can also be firmly fixed on the ground, so that the overall stability is higher and the safety of operation can be improved.

[0031] It will be apparent 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 considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined 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 be included in the present invention.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An assembled steel trestle hoisting device, comprising a bottom frame and a box arranged on the top of the bottom frame, wherein a support rod is fixedly mounted on the box, characterized in that: Also includes: A hoisting assembly, which is installed on the box and the support rods and driven by a motor arranged outside the box to pull the steel trestle components; An adjustable clamping assembly, which is installed at the bottom of the fixing plate in the lifting assembly to facilitate fixing the steel trestle components before and after lifting; An anti-twist assembly, which is arranged on the support rod and the fixing plate and controls the position of the steel trestle components when the fixing plate is raised or lowered; A horizontal adjustment component, which is mounted on the bottom frame and is also connected to the box body so as to adjust the angle of the hoisting in the horizontal plane; The reinforcement component is symmetrically arranged in the bottom frame, the reinforcement component is transmission-connected with the horizontal adjustment component, and the device is stably fixed on the ground when the horizontal adjustment component is working.

2. The assembled steel trestle hoisting device according to claim 1, characterized in that: The hoisting assembly includes a traction machine, a cable, a roller and a fixing plate; The roller is rotatably mounted on the top of the support rod, a cable is mounted on the roller, and a fixing plate is fixedly mounted on the end of the cable; The cable is wound around a traction machine arranged in the box body, and the cable is retracted and released when the traction machine rotates.

3. The assembled steel trestle hoisting device according to claim 1, characterized in that: The adjustable clamping assembly comprises a sleeve, a guide rod, an elastic member and a connecting hole; The sleeves are provided in plurality, the sleeves are hinged to the bottom of the fixing plate, and the sleeves are also connected to the elastic member installed at the bottom of the fixing plate; A guide rod is slidably mounted on the sleeve, and the sleeve and the guide rod are provided with connecting holes with the same aperture and are connected via an external pin shaft.

4. The assembled steel trestle hoisting device according to claim 3 is characterized in that: The adjustable clamping assembly also includes a clamping claw, a pull rod, a telescopic member and a controller; The abutting claws are symmetrically hinged to the ends of the guide rods, and a pull rod is hinged to the inner side of each abutting claw, and the pull rod is hinged to the free end of the telescopic member built into the guide rod; The guide rod is provided with a groove for the movement of the clamping claw and the pull rod; The telescopic member is also electrically connected to a controller installed on the side of the fixed plate, so as to change the angle of the abutting claw by adjusting the elongation of the telescopic member.

5. The assembled steel trestle hoisting device according to claim 1, characterized in that: The anti-twist assembly includes a limit groove, a limit rod and a limit column; The limiting groove is arranged on the supporting rod, the limiting rod is slidably mounted on the fixing plate, one end of the limiting rod is fixedly mounted with a limiting column, and the limiting column is slidably connected with the limiting groove; A baffle is also installed at the end of the limiting rod to prevent the fixing plate from separating from the limiting rod during movement.

6. The assembled steel trestle hoisting device according to claim 1, characterized in that: The horizontal adjustment assembly includes a driving gear shaft, a driven gear shaft, an inner guide rail, an outer guide rail and a turntable; The driving gear shaft and the driven gear shaft are rotatably mounted on the bottom frame, and the driving gear shaft is meshed with the driven gear shaft; The top of the driven gear shaft is meshed with the inner teeth of the turntable arranged at the bottom of the housing, so that the turntable and the housing are driven to rotate synchronously when the driven gear shaft rotates; The inner guide rail and the outer guide rail are arranged at the top of the bottom frame, the inner guide rail is slidably connected to the guide groove 1 at the bottom of the turntable, and the outer guide rail is slidably connected to the guide groove 2 at the bottom of the turntable.

7. The assembled steel trestle hoisting device according to claim 6, characterized in that: The reinforcement assembly includes a horizontal shaft, a bevel gear set, a cam, a movable plate, a plunger and a spring; The horizontal shaft is rotatably mounted in the bottom frame, the horizontal shaft is transmission-connected to the driving gear shaft through a bevel gear set, and a cam is fixedly mounted on the horizontal shaft; The insertion rod is slidably installed at the bottom of the bottom frame, a movable plate is fixedly installed at the top of the insertion rod, the top of the movable plate abuts against the cam, and the bottom of the movable plate is connected with a spring installed in the bottom frame.

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