Cable fixing device of tower crane

Abstract

The utility model discloses a tower crane cable fixing device which comprises a supporting frame and a clamping assembly, the clamping assembly comprises fixing frames, supporting blocks, buffer springs, moving rods and guide wheel supports, the fixing frames are symmetrically arranged on the inner side of the supporting frame, and the supporting blocks are arranged on the sides, away from the supporting frame, of the fixing frames. Containing holes are formed in the opposite sides of the supporting blocks, moving rods are slidably arranged in the containing holes, buffer springs are arranged on the surfaces of the bottoms in the containing holes, the sides, away from the inner walls of the containing holes, of the buffer springs and the moving rods are fixedly installed, and the other sides of the moving rods stretch out of the containing holes to be fixedly provided with guide wheel supports. Guide wheels are rotatably mounted in the middles of the guide wheel supports, guide plates are symmetrically arranged at the bottoms of the guide wheel supports, guide blocks are arranged at the bottoms between the guide plates, and guide grooves are formed in the bottom surfaces of the guide blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of cable fixing, in particular to a cable fixing device for a tower crane. Background Art

[0002] The main cable line of the tower crane provides the main power for it. The main cable line is led out from the three-level distribution cabinet and fixed on the tower crane's tower. As the tower crane rises and gradually lengthens, the main cable line increases in length and weight. It is necessary to adopt a scientific and reasonable fixing method to connect it to the tower body, which can both bear the cable's own weight and ensure the integrity of the cable.

[0003] Publication (Announcement) No.: CN215221687U, a tower crane cable fixing device, belongs to the technical field of tower crane equipment. It is characterized by: comprising a main body and a pair of eccentric wheels rotatably mounted on the main body, the two eccentric wheels are arranged side by side and at intervals, and a channel for the cable to pass through is formed between the two eccentric wheels, and the side of the main body is provided with a hanging part for hanging on the tower crane. A channel for the cable to pass through is formed between the two eccentric wheels of the tower crane cable fixing device, and the two eccentric wheels cooperate to limit the cable, and when the cable moves downward, the two eccentric wheels rotate with the movement of the cable.

[0004] The prior art uses an eccentric wheel for routing, which easily results in a single routing specification and is unable to achieve changes in the thickness of the cable wire as the purpose of the tower crane changes, which in turn causes great limitations in the use of the structure in the prior art. In addition, due to the elastic deformation effect of the eccentric wheel, the cable is easily squeezed and worn, especially for cables that are used for a long time, which is easy to cause surface damage and leakage risk. Therefore, it is necessary to provide a tower crane cable fixing device with guiding, clamping, and good buffering elastic clamping effect. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a tower crane cable fixing device to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a cable fixing device for a tower crane, comprising a supporting frame and a clamping assembly, the clamping assembly comprising a fixing frame, a supporting block, a buffer spring, a moving rod, and a guide wheel bracket, a fixing frame is symmetrically arranged on the inner side of the supporting frame, a supporting block is arranged on the side of the fixing frame away from the supporting frame, a receiving hole is opened on the side opposite to the supporting blocks, a moving rod is slidably arranged inside the receiving hole, a buffer spring is arranged on the inner bottom surface of the receiving hole, the side of the buffer spring away from the inner wall of the receiving hole is fixedly installed with the moving rod, the other side of the moving rod extends out of the receiving hole and is fixedly installed with a guide wheel bracket, a guide wheel is rotatably installed in the middle of the guide wheel bracket, a guide plate is symmetrically arranged on the bottom of the guide wheel bracket, a guide block is arranged at the bottom between the guide plates, and a guide groove is opened on the bottom surface of the guide block.

[0007] Preferably, a card block is evenly arranged at the outlet end of the accommodating hole in the circumference, and a card groove is circumferentially arranged at one side of the movable rod close to the accommodating hole, and the card groove and the card block are slidably installed.

[0008] Preferably, the cross section of the guide plate is arranged as a right triangle structure, the hypotenuse of the guide plate is arranged in the same direction as the vertical diameter of the guide wheel, and the angle of the guide plate on the guide wheel bracket is not less than 45 degrees.

[0009] Preferably, push-pull frames are respectively provided at both ends of the front side of the support frame, and a push-pull plate is slidably installed between the push-pull frames.

[0010] Preferably, a clamping frame is provided on the rear side of the support frame.

[0011] Preferably, the transverse cross-section of the guide groove is an arc-shaped structure, and the length direction of the guide groove is in the same direction as the length direction of the bottom right-angle side of the guide plate.

[0012] In summary, the utility model provides a cable fixing device for a tower crane, which realizes a moving rod slidingly arranged inside a receiving hole, a buffer spring is arranged on the bottom surface of the receiving hole in the depth direction, the buffer spring is fixedly installed with the moving rod on one side away from the inner wall of the receiving hole, and a guide wheel bracket is fixedly installed on the other side of the moving rod extending out of the receiving hole, and a guide wheel is rotatably installed in the middle part of the guide wheel bracket, and the roller surface of the guide wheel is arranged to be an arc-shaped guide groove, and the arc-shaped guide groove is used for clamping and guiding the cable, so that the cable can be extended and guided out through the two guide wheels by the action of the guide wheels, and the guide wheel can be in a real-time clamping and limiting role for the cable through the elastic action of the buffer spring, so that the use of a single routing and cables of different thicknesses can be achieved according to the different uses of the tower crane, the elastic clamping action of the buffer spring can reduce the wear on the cable, and the rolling guiding action between the guide wheels can improve the smooth routing of the cable, and solve the technical problem that the routing of the tower crane cable is difficult, especially in a high-altitude environment, and the fixed installation efficiency is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the fixing frame and the supporting block of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the clamping assembly of the utility model;

[0016] Figure 4 This is a schematic diagram of the guide block and guide groove structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the connection structure between the push-pull frame and the support frame of the utility model;

[0018] In the figure: supporting frame 1, clamping assembly 2, fixing frame 3, supporting block 4, buffer spring 5, moving rod 6, guide wheel bracket 7, fixing plate 31, bracket plate 32, accommodating hole 11, guide wheel 12, guide plate 13, guide block 14, guide groove 15, clamping block 16, clamping groove 17, push-pull frame 21, push-pull plate 22, clamping frame 23, limit block 24. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 5 As shown:

[0021] The utility model discloses a cable fixing device for a tower crane, comprising a supporting frame 1 and a clamping assembly 2. The clamping assembly 2 comprises a fixing frame 3, a supporting block 4, a buffer spring 5, a moving rod 6 and a guide wheel bracket 7. The fixing frame 3 is symmetrically arranged on the inner side of the supporting frame 1. The fixing frame 3 comprises a fixing plate 31 and a bracket plate 32. The fixing plate 31 is mounted on the supporting frame 1 by bolts. The supporting block 4 is mounted on the side of the fixing plate 31 away from the supporting frame 1 by two bracket plates 32. The clamping frame 23 arranged on the rear side of the supporting frame 1 is installed with the fixing plate 31 by unified bolts, which increases the speed and convenience of assembly and installation. The fixing frame 3 is arranged on the side away from the supporting frame 1. The supporting block 4 is arranged on the opposite side between the supporting blocks 4. The accommodating hole 11 is extended to the inside of the supporting block 4 in the length direction. The moving rod 6 is slidably arranged inside the accommodating hole 11. The bottom surface of the accommodating hole 11 in the depth direction is provided with a buffer spring. Spring 5, one side of the buffer spring 5 away from the inner wall of the accommodating hole 11 is fixedly installed with the moving rod 6, and the other side of the moving rod 6 extends out of the accommodating hole 11 and is fixedly installed with a guide wheel bracket 7, and the middle part of the guide wheel bracket 7 is rotatably installed with a guide wheel 12, and the roller surface of the guide wheel 12 is set to a circular arc guide groove, and the circular arc guide groove is used to clamp and guide the cable, so that the cable passes between the two guide wheels 12 and is extended and guided out by the guide wheel 12. Through the elastic action of the buffer spring 5, the guide wheel 12 can be in a real-time clamping and limiting role for the cable, which solves the problem of single routing and the use of cables with different thicknesses according to the different uses of the tower crane. Through the elastic clamping action of the buffer spring, the wear on the cable is reduced, and the rolling guiding action between the guide wheels improves the smoothness of the cable routing, and solves the technical problem of difficult cable routing of the tower crane, especially in the high-altitude environment, and low efficiency of fixed installation;

[0022] like Figure 3 to Figure 4 As shown:

[0023] Guide plates 13 are symmetrically arranged at the bottom of the guide wheel bracket 7, guide blocks 14 are arranged at the bottom between the guide plates 13, and guide grooves 15 are opened on the bottom surface of the guide blocks 14. During the cable routing process, due to the limitations of the installation environment and the high altitude state, fast and convenient routing installation is required. Guide plates 13 are arranged at the bottom of the guide wheel bracket 7. The clamp angle between the guide plates 13 is large, and the cable can be conveniently and quickly limited in routing. Through the setting of the guide grooves 15, the cable can extend upward along the guiding effect of the guide grooves 15 to between the arc-shaped guide grooves of the two guide wheels 12. The cable extends upward through the arc-shaped guide grooves on the two guide plates 13, and through the elastic effect of the buffer spring 5, the cable is clamped and limited in real time to complete the guiding effect on the cable routing.

[0024] In at least one embodiment, Figure 3As shown: In order to achieve directional sliding of the moving rod 6 in the accommodating hole 11 so as to stabilize the cable movement, a clamping block 16 is evenly arranged circumferentially at the outlet end of the accommodating hole 11, and a clamping groove 17 is circumferentially arranged on one side of the moving rod 6 close to the accommodating hole 11, and the clamping groove 17 is slidably installed with the clamping block 16.

[0025] In at least one embodiment, Figure 3 , 4 As shown: In order to increase the speed and convenience of cable routing guidance, the cross-section of the guide plate 13 is set to a right-angled triangle structure, the hypotenuse of the guide plate 13 is set in the same direction as the vertical diameter of the guide wheel 12, and the angle between the guide plate 13 and the guide wheel bracket 7 is not less than 45 degrees, and the preferred angle is 60 degrees, so that the overlapping sector surface of the guide plate 13 and the guide wheel 12 is larger, and the guiding length of the guide groove 15 is longer, close to the arc-shaped guide groove of the guide wheel 12, and can be extended to the arc-shaped guide groove, so that the cable can be quickly guided between the two guide wheels 12, so that it can pass between the two guide wheels 12, and the two guide wheels 12 can clamp and guide the cable.

[0026] In at least one embodiment, Figure 5 As shown: In order to close the front side of the support frame 1 and protect the cables, push-pull frames 21 are respectively provided at both ends of the front side of the support frame 1, and a push-pull plate 22 is slidably installed between the push-pull frames 21. Two limit blocks 24 are provided on the push-pull plate 22. When the push-pull plate 22 is slidably installed on the push-pull frame 21, the sliding of the push-pull plate 22 is limited to achieve the closure of the front side of the support frame 1.

[0027] In at least one embodiment, Figure 5 As shown: a clamping frame 23 is provided on the rear side of the support frame 1. After being installed on the standard section through the clamping frame 23, the cable is fixedly installed.

[0028] In at least one embodiment, Figure 4 As shown: the transverse cross-section of the guide groove 15 is an arc-shaped structure, which is convenient for cutting the cable and guiding the cable routing, and the length direction of the guide groove 15 is in the same direction as the length direction of the bottom right-angle side of the guide plate 13, so that the guide groove 15 can be as close as possible to the arc-shaped guide groove on the guide wheel 12, thereby achieving a fast and accurate guiding effect.

[0029] The embodiments of the present invention are only used to illustrate the present invention and do not constitute a limitation on the scope of the claims. Other substantially equivalent alternatives that can be thought of by those skilled in the art are all within the protection scope of the present invention.

Claims

1. A tower crane cable fixing device, characterized in that: The invention comprises a support frame (1) and a clamping assembly (2). The clamping assembly (2) comprises a fixed frame (3), a support block (4), a buffer spring (5), a moving rod (6), and a guide wheel bracket (7). The fixed frame (3) is symmetrically arranged on the inner side of the support frame (1). The side of the fixed frame (3) away from the support frame (1) is provided with a support block (4). An accommodating hole (11) is provided on the opposite side between the support blocks (4). The moving rod (6) is slidably arranged inside the accommodating hole (11). The buffer spring (5) is provided on the bottom surface of the inner part of the accommodating hole (11). The side of the buffer spring (5) away from the inner wall of the accommodating hole (11) is fixedly mounted on the moving rod (6). The other side of the moving rod (6) protrudes out of the accommodating hole (11) and is fixedly mounted with a guide wheel bracket (7). A guide wheel (12) is rotatably mounted in the middle of the guide wheel bracket (7). A guide plate (13) is symmetrically arranged at the bottom of the guide wheel bracket (7). A guide block (14) is provided at the bottom between the guide plates (13). A guide groove (15) is provided on the bottom surface of the guide block (14).

2. A tower crane cable fixing device according to claim 1, characterized in that: The outlet end of the accommodating hole (11) is evenly provided with clamping blocks (16) in the circumferential direction, and a clamping groove (17) is circumferentially provided on one side of the moving rod (6) close to the accommodating hole (11), and the clamping groove (17) and the clamping block (16) are slidably mounted.

3. A tower crane cable fixing device according to claim 1, characterized in that: The cross section of the guide plate (13) is arranged to be a right-angled triangle structure, the hypotenuse of the guide plate (13) is arranged in the same direction as the vertical diameter of the guide wheel (12), and the angle between the guide plate (13) and the guide wheel bracket (7) is not less than 45 degrees.

4. A tower crane cable fixing device according to claim 1, characterized in that: Push-pull frames (21) are respectively provided at both ends of the front side of the support frame (1), and a push-pull plate (22) is slidably installed between the push-pull frames (21).

5. A tower crane cable fixing device according to claim 1, characterized in that: A clamping frame (23) is provided on the rear side of the support frame (1).

6. A tower crane cable fixing device according to claim 1, characterized in that: The transverse cross section of the guide groove (15) is an arc-shaped structure, and the length direction of the guide groove (15) is in the same direction as the length direction of the right-angled side at the bottom of the guide plate (13).

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