Tower crane jacking oil cylinder extension detection device

Abstract

The utility model provides a tower crane jacking oil cylinder extension detection device, the tower crane jacking oil cylinder extension detection device comprises a first oil cylinder, a detection assembly and a stabilizing assembly, a piston rod of the first oil cylinder is fixedly connected with a first connecting rod, and one end of the first connecting rod is provided with a first positioning frame; the detection assembly is arranged on one side of the first positioning frame, the detection assembly comprises a fixing plate, a supporting block, a movement guide plate, a sliding frame and a connecting block, the fixing plate is fixedly connected to one side of the first positioning frame, and the supporting block is fixedly connected to the top of the fixing plate. The tower crane jacking oil cylinder extension detection device solves the problems that when part of existing jacking oil cylinders conduct jacking operation, real-time detection on the extension length is not convenient, workers cannot find the abnormal condition of extension of the oil cylinders in time, equipment faults are likely to be caused, and safety risks are increased. The tower crane jacking oil cylinder extension detection device solves the problems that in the prior art, when part of jacking oil cylinders conduct jacking operation, the extension length is not convenient to detect in real time, and therefore workers cannot find the abnormal condition of extension of the oil cylinders in time.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane equipment, in particular to a tower crane lifting cylinder elongation detection device. Background Art

[0002] Tower cranes are commonly used lifting equipment on construction sites. They are mainly composed of three parts: metal structure, working mechanism and electrical system. In the construction of multi-story and high-rise buildings, tower cranes are the main equipment for vertical transportation of materials and installation of components. Through lifting cylinders and frames, tower cranes can be raised or lowered with the height of the building to meet the operational needs of different buildings. They are an indispensable and important component of tower cranes. Their normal operation is of great significance to ensuring the stability, safety and efficiency of tower cranes.

[0003] Patent application number 202023026622.1 is a climbing device for a tower crane with a jacking and anti-slip function. The anti-slip structure not only makes installation easy, but also ensures the safety of the jacking and lowering of the climbing frame, prevents the climbing frame from falling off, and thus ensures the safe use of the tower crane.

[0004] Some existing jacking cylinders are not convenient for real-time detection of the extended length during jacking operations, so that workers cannot promptly discover abnormal extension of the cylinder, which can easily cause equipment failure and increase safety risks.

[0005] Therefore, it is necessary to provide a new tower crane lifting cylinder elongation detection device to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a tower crane lifting cylinder extension detection device which is convenient for real-time detection of the extension length and enhances the lifting stability.

[0007] The utility model provides a tower crane lifting cylinder elongation detection device, which comprises a first oil cylinder, a detection component and a stabilizing component, wherein the piston rod of the first oil cylinder is fixedly connected to the first connecting rod, and a first positioning frame is arranged at one end of the first connecting rod; the detection component is arranged at one side of the first positioning frame, the detection component comprises a fixed plate, a support block, a moving guide plate, a sliding frame and a connecting block, one side of the first positioning frame is fixedly connected to the fixed plate, the top of the fixed plate is fixedly connected to the supporting block, the top of the fixed plate is fixedly connected to the moving guide plate, the inner side of the moving guide plate is slidably connected to the sliding frame, and the top of the sliding frame is fixedly connected to the connecting block; the stabilizing component is arranged at the bottom of the first positioning frame, the stabilizing component comprises a crossbeam, a second positioning frame and a step, the bottom of the first positioning frame is fixedly connected to the crossbeam, the top of the first oil cylinder is arranged with a second positioning frame, and steps are arranged on both sides of the crossbeam.

[0008] As a tower crane lifting cylinder elongation detection device provided by the utility model, preferably, a clamping block is fixedly connected to one side of the connecting block, and a threaded rod is threadedly connected to the inner side of the connecting block.

[0009] As a tower crane lifting cylinder elongation detection device provided by the utility model, preferably, the top of the moving guide plate is fixedly connected to a support frame, a support rod is provided on the inner side of the support frame, one end of the support rod is fixedly connected to a pull rope displacement sensor, and a receiving plate is fixedly connected to the outer side of the first cylinder.

[0010] As a tower crane lifting cylinder elongation detection device provided by the utility model, preferably, a first turntable is provided at one end of the threaded rod, a second turntable is connected to the outer side of the first turntable through a belt drive, a second connecting rod is provided on one side of the second turntable, and a motor is fixedly connected to one end of the second connecting rod.

[0011] As a tower crane lifting cylinder elongation detection device provided by the utility model, preferably, the stabilizing assembly also includes a standard section and a second cylinder, one side of the step is fixedly connected with the standard section, and one side of the standard section is provided with the second cylinder.

[0012] As a tower crane lifting cylinder elongation detection device provided by the utility model, preferably, both sides of the crossbeam are fixedly connected with positioning blocks, the top of the crossbeam is fixedly connected with a limiting frame, and the inner side of the limiting frame is slidably connected with an insertion rod.

[0013] As a tower crane lifting cylinder extension detection device provided by the utility model, preferably, the outer side of the insertion rod is fixedly connected to a limit rod, the outer side of the insertion rod is provided with a limit sleeve, and one side of the limit sleeve is fixedly connected to one side of the step.

[0014] As a tower crane lifting cylinder elongation detection device provided by the utility model, preferably, an anti-drop plate is fixedly connected to the outer side of the standard section, a climbing frame is arranged on the outer side of the standard section, and a PLC controller is arranged on one side of the climbing frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The tower crane jacking cylinder elongation detection device, through a fixed plate, a moving guide plate, a sliding frame, a connecting block and a threaded rod, etc., conveniently drives the clamping block to clamp and fix the pull rope displacement sensor, and is convenient to install and disassemble, and has enhanced flexibility. With the cooperation of the pull rope displacement sensor and the receiving plate, it is convenient to detect the extended length of the second connecting rod at the first oil cylinder and the second oil cylinder in real time, which is convenient for the staff to timely discover abnormal elongation and enhance safety. The first oil cylinder and the second oil cylinder are controlled to perform jacking operations at the same time, and with the cooperation of steps, beams, plug rods and limit sleeves, it is conducive to balancing the load, supporting and stabilizing the tower crane, reducing the risk of shaking or tipping due to uneven force, enhancing safety, and at the same time being able to improve the jacking and sectioning efficiency, and solves the problem that some existing jacking cylinders are not convenient for real-time detection of the extended length during jacking operations, so that the staff cannot timely discover the abnormal extension of the cylinder, which affects the stability during work, easily causes equipment failure, and increases safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of the tower crane lifting cylinder elongation detection device provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the novel detection component shown;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the new stabilizing assembly shown;

[0020] Figure 4 for Figure 3 An enlarged schematic diagram of the structure of the new type A is shown.

[0021] Numbers in the figure: 1. first oil cylinder; 2. first connecting rod; 3. first positioning frame; 4. detection assembly; 41. fixed plate; 42. support block; 43. motion guide plate; 44. sliding frame; 45. connecting block; 5. stabilizing assembly; 51. crossbeam; 52. second positioning frame; 53. step; 54. standard section; 55. second oil cylinder; 6. clamping block; 7. threaded rod; 8. support frame; 9. support rod; 10. pull rope displacement sensor; 11. first turntable; 12. second turntable; 13. second connecting rod; 14. motor; 15. receiving plate; 16. positioning block; 17. limit frame; 18. insertion rod; 19. limit rod; 20. limit sleeve; 21. anti-slip plate; 22. climbing frame; 23. PLC controller. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A structural schematic diagram of a preferred embodiment of the tower crane lifting cylinder elongation detection device provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the novel detection component shown; Figure 3 for Figure 1 A schematic diagram of the structure of the new stabilizing assembly shown; Figure 4 for Figure 3 The structure of the new A is shown in an enlarged schematic diagram. A tower crane lifting cylinder elongation detection device comprises a first cylinder 1, a piston rod of the first cylinder 1 is fixedly connected to a first connecting rod 2, and a first positioning frame 3 is arranged at one end of the first connecting rod 2;

[0024] In the specific implementation process, Figure 1 and Figure 2 As shown, the detection component 4 is arranged on one side of the first positioning frame 3, and the detection component 4 includes a fixed plate 41, a support block 42, a moving guide plate 43, a sliding frame 44 and a connecting block 45. One side of the first positioning frame 3 is fixedly connected with the fixed plate 41, the top of the fixed plate 41 is fixedly connected with the support block 42, the top of the fixed plate 41 is fixedly connected with the moving guide plate 43, the inner side of the moving guide plate 43 is slidably connected with the sliding frame 44, and the top of the sliding frame 44 is fixedly connected with the connecting block 45.

[0025] A clamping block 6 is fixedly connected to one side of the connecting block 45 , and a threaded rod 7 is threadedly connected to the inner side of the connecting block 45 .

[0026] The top of the moving guide plate 43 is fixedly connected to a support frame 8 , a support rod 9 is arranged on the inner side of the support frame 8 , a pull rope displacement sensor 10 is fixedly connected to one end of the support rod 9 , and a receiving plate 15 is fixedly connected to the outer side of the first oil cylinder 1 .

[0027] A first turntable 11 is provided at one end of the threaded rod 7, and a second turntable 12 is connected to the outer side of the first turntable 11 through a belt drive. A second connecting rod 13 is provided on one side of the second turntable 12, and a motor 14 is fixedly connected to one end of the second connecting rod 13.

[0028] It should be noted that: the threaded rod 7 has threaded layers in opposite directions. The two support rods 9 are inserted into the through holes of the support frame 8 to preliminarily position the rope displacement sensor 10. Driven by the motor 14, the second connecting rod 13 drives the second turntable 12 to rotate, and then the first turntable 11 drives the threaded rod 7 to rotate under the support of the two support blocks 42, so that the two connecting blocks 45 respectively drive the two clamping blocks 6 to move toward the support frame 8, and at the same time drive the two sliding frames 44 to slide under the limit of the motion guide plate 43, so as to improve the smoothness and stability of the movement of the connecting block 45. The rope displacement sensor 10 is clamped and fixed by the two clamping blocks 6 to ensure a stable effect, and at the same time facilitate the installation and disassembly of the laser displacement sensor 10. The rope of the rope displacement sensor 10 is fixed to the receiving plate 15, so as to facilitate the detection of the extended length of the first connecting rod 2 at the first oil cylinder 1, improve the safe lifting effect, and at the same time measure the lifting height according to the extended distance.

[0029] refer to Figure 1 , Figure 3 and Figure 4 As shown, the stabilizing component 5 is arranged at the bottom of the first positioning frame 3, and the stabilizing component 5 includes a crossbeam 51, a second positioning frame 52 and a step 53. The bottom of the first positioning frame 3 is fixedly connected with the crossbeam 51, the top of the first oil cylinder 1 is provided with the second positioning frame 52, and steps 53 are provided on both sides of the crossbeam 51.

[0030] The stabilizing assembly 5 further includes a standard section 54 and a second oil cylinder 55 . One side of the step 53 is fixedly connected with the standard section 54 , and one side of the standard section 54 is provided with the second oil cylinder 55 .

[0031] Positioning blocks 16 are fixedly connected to both sides of the cross beam 51 , a limiting frame 17 is fixedly connected to the top of the cross beam 51 , and an inserting rod 18 is slidably connected to the inner side of the limiting frame 17 .

[0032] The outer side of the insertion rod 18 is fixedly connected to a limiting rod 19 . A limiting sleeve 20 is arranged on the outer side of the insertion rod 18 . One side of the limiting sleeve 20 is fixedly connected to one side of the step 53 .

[0033] An anti-drop plate 21 is fixedly connected to the outer side of the standard section 54 , a climbing frame 22 is arranged on the outer side of the standard section 54 , and a PLC controller 23 is arranged on one side of the climbing frame 22 .

[0034] It should be noted that: the connection and loosening of the standard section 54 and the climbing frame 22 are conveniently controlled by multiple anti-slip plates 21 and bolts. The first oil cylinder 1 and the second oil cylinder 55 are respectively installed on both sides of the standard section 54, and the top of the second positioning frame 52 is connected to the bottom of the upper platform of the climbing frame 22. The first oil cylinder 1 and the second oil cylinder 55 are controlled to perform the jacking operation at the same time, which is beneficial to balance the load, support and stabilize the tower crane, reduce the risk of shaking or tipping due to uneven force, enhance safety, and at the same time improve the efficiency of jacking and adding sections. The insertion rod 18 is adjusted by the limit frame 17. The control beam 51 is moved so that the positioning block 16 is placed at the slot of the step 53. By pulling the limiting rod 19, the insertion rod 18 is inserted into the limiting sleeve 20, so that the standard section 54, the step 53, etc. are fixed to the beam 51, thereby promoting the realization of the jacking work. The output end of the PLC controller 23 is connected to the control power switch, and the control signal is sent to the power switch through the output module on the PLC controller 23. After receiving the control signal of the PLC, the switch will execute the action of cutting off the power supply, thereby stopping the operation.

[0035] The working principle of the tower crane lifting cylinder elongation detection device provided by the utility model is as follows:

[0036] When in use, the two support rods 9 fixed with the pull rope displacement sensor 10 are inserted into the through holes of the support frame 8, and the pull rope displacement sensor 10 is preliminarily positioned. Under the drive of the motor 14, the second connecting rod 13 drives the second turntable 12 to rotate, and then the first turntable 11 drives the threaded rod 7 to rotate under the support of the two support blocks 42. The threaded rod 7 has thread layers in opposite directions, so that the two connecting blocks 45 respectively drive the two clamping blocks 6 to move toward the support frame 8, and at the same time drive the two sliding frames 44 to slide under the limit of the motion guide plate 43, so as to improve the smoothness and stability of the movement of the connecting blocks 45. The pull rope displacement sensor 10 is clamped and fixed by the two clamping blocks 6 to ensure the stability effect, and at the same time, it is convenient to install and disassemble the pull rope displacement sensor 10. The pull rope of the pull rope displacement sensor 10 is fixed to the receiving plate 15, so as to facilitate the real-time detection of the extension length of the first connecting rod 2 at the first oil cylinder 1 and the second oil cylinder 55, thereby improving the safety jacking effect and facilitating the measurement of the appropriate jacking height according to the extension distance, thereby enhancing the practicality. The first oil cylinder 1 and the second oil cylinder 55 are respectively installed on both sides of the standard section 54, and are connected to the bottom of the platform on the climbing frame 22 through the top of the second positioning frame 52. The first oil cylinder 1 and the second oil cylinder 55 are controlled to perform jacking operations at the same time, which is beneficial to balance the load, support and stabilize the tower crane, reduce the risk of shaking or tipping due to uneven force, enhance safety, and improve the efficiency of jacking and adding sections. When the tower crane exceeds the limit, the output module on the PLC controller 23 sends a control signal to the power switch, and the switch is on. After receiving the control signal from the PLC, the power supply will be cut off to stop the operation, ensuring that the operation stops in time under safe conditions, effectively avoiding casualties and equipment damage. The insertion rod 18 is supported by the limit frame 17 and limited by the limit rod 19. When the control beam 51 moves so that the positioning block 16 is placed at the groove of the step 53, the limit rod 19 is pulled to drive the insertion rod 18 to be inserted into the limit sleeve 20, so that the standard section 54, the step 53, etc. fix the beam 51, thereby promoting the realization of the jacking work.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tower crane lifting cylinder elongation detection device, characterized in that: include: A first oil cylinder (1), wherein a piston rod of the first oil cylinder (1) is fixedly connected to a first connecting rod (2), and a first positioning frame (3) is provided at one end of the first connecting rod (2); A detection component (4), the detection component (4) being arranged on one side of the first positioning frame (3), the detection component (4) comprising a fixed plate (41), a support block (42), a moving guide plate (43), a sliding frame (44) and a connecting block (45), one side of the first positioning frame (3) being fixedly connected to the fixed plate (41), the top of the fixed plate (41) being fixedly connected to the supporting block (42), the top of the fixed plate (41) being fixedly connected to the moving guide plate (43), the inner side of the moving guide plate (43) being slidably connected to the sliding frame (44), and the top of the sliding frame (44) being fixedly connected to the connecting block (45); A stabilizing component (5), the stabilizing component (5) being arranged at the bottom of the first positioning frame (3), the stabilizing component (5) comprising a crossbeam (51), a second positioning frame (52) and a step (53), the crossbeam (51) being fixedly connected to the bottom of the first positioning frame (3), the second positioning frame (52) being arranged at the top of the first oil cylinder (1), and steps (53) being arranged on both sides of the crossbeam (51).

2. The tower crane lifting cylinder elongation detection device according to claim 1 is characterized in that: A clamping block (6) is fixedly connected to one side of the connection block (45), and a threaded rod (7) is threadedly connected to the inner side of the connection block (45).

3. The tower crane lifting cylinder elongation detection device according to claim 1 is characterized in that: A support frame (8) is fixedly connected to the top of the motion guide plate (43), a support rod (9) is provided on the inner side of the support frame (8), a pull rope displacement sensor (10) is fixedly connected to one end of the support rod (9), and a receiving plate (15) is fixedly connected to the outer side of the first oil cylinder (1).

4. The tower crane lifting cylinder elongation detection device according to claim 2 is characterized in that: A first rotating disk (11) is disposed at one end of the threaded rod (7); the outer side of the first rotating disk (11) is connected to a second rotating disk (12) via a belt drive; a second connecting rod (13) is disposed on one side of the second rotating disk (12); and one end of the second connecting rod (13) is fixedly connected to a motor (14).

5. The tower crane lifting cylinder elongation detection device according to claim 1 is characterized in that: The stabilizing assembly (5) further comprises a standard section (54) and a second oil cylinder (55); one side of the step (53) is fixedly connected to the standard section (54); and one side of the standard section (54) is provided with the second oil cylinder (55).

6. The tower crane lifting cylinder elongation detection device according to claim 1 is characterized in that: Positioning blocks (16) are fixedly connected to both sides of the crossbeam (51), a limiting frame (17) is fixedly connected to the top of the crossbeam (51), and an insert rod (18) is slidably connected to the inner side of the limiting frame (17).

7. The tower crane lifting cylinder elongation detection device according to claim 6 is characterized in that: The outer side of the insertion rod (18) is fixedly connected to a limiting rod (19), and a limiting sleeve (20) is provided on the outer side of the insertion rod (18), and one side of the limiting sleeve (20) is fixedly connected to one side of the step (53).

8. The tower crane lifting cylinder elongation detection device according to claim 5 is characterized in that: An anti-drop plate (21) is fixedly connected to the outside of the standard section (54), a climbing frame (22) is provided on the outside of the standard section (54), and a PLC controller (23) is provided on one side of the climbing frame (22).

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