Electric power construction pay-off trolley

Abstract

The utility model relates to electric power construction technical field, and disclose a kind of electric power construction pay-off tackle, this electric power construction pay-off tackle, including frame, the side wall of frame is provided with groove one, the upper and lower surface of frame is provided with through-hole, the outer wall of bearing one is fixedly connected in the through-hole, the inner wall of bearing one is fixedly connected with connecting piece, the upper surface of connecting piece is fixedly connected with hook, the inside of frame is provided with automatic roller mechanism.This electric power construction pay-off tackle, by being provided with automatic roller mechanism, the real-time dynamic response of the change of cable thickness degree is realized, when cable thickness changes, spring two promotes slide cylinder to slide along groove two, drives fixed sleeve displacement, and further through the contact pressure of spring three and transmission shaft's linkage adjustment wheel roller, enhance the lateral stability of this equipment to cable, and cooperate spring one, the downward force of two sides automatic roller mechanism is realized, the longitudinal stability of cable is realized.

Description

Technical Field

[0001] This utility model relates to the field of power construction technology, specifically to a power construction line laying pulley. Background Technology

[0002] Cable laying pulleys are classified into ground cable pulleys, cable pulleys, upward-facing pulleys, nylon pulleys, cable conductor laying pulleys, large-diameter cable laying pulleys, dual-purpose (hanging and laying) cable laying pulleys, ground wire laying pulleys, lifting pulleys, etc.

[0003] According to a power construction cable laying pulley (announcement number: CN209434764U) published in the above application, the pulley can be adjusted by adjusting the screw to accommodate more types of cables of different thicknesses, achieving the purpose of multi-purpose use and cost saving. Moreover, a set of rollers on the pulley can slide up and down, and when used as a limit switch, it ensures that the cable does not fall off during the laying process, ensuring stability and safety.

[0004] However, in actual use, the aforementioned equipment requires cumbersome operation. Adjusting the roller spacing via adjusting screws and pressure springs necessitates adjusting each knob individually. Furthermore, in practical applications, changing cables requires removing the equipment and manually changing the roller size. Frequent cable specification changes during construction are time-consuming and inefficient. Moreover, manual roller size changes cannot guarantee identical adjustment on both sides, potentially causing irreversible damage to the cables. Therefore, we propose a power line laying pulley system. Utility Model Content

[0005] The purpose of this utility model is to provide a power construction line laying pulley to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a power construction line-laying pulley, comprising a frame, a groove provided on the side wall of the frame, through holes provided on the upper and lower surfaces of the frame, an outer wall of a bearing fixedly connected to the through holes, a connector fixedly connected to the inner wall of the bearing, a hook fixedly connected to the upper surface of the connector, and an automatic roller mechanism provided inside the frame, the automatic roller mechanism comprising:

[0007] A receiving block is provided in a groove. A movable sleeve is fixedly connected to the upper surface of the receiving block. A spring is fixedly connected to the upper surface of the receiving block. The outer wall of a bearing is fixedly connected through the inside of the receiving block. A drive shaft is fixedly connected to the inner wall of the bearing.

[0008] The roller has a hole at its end, the inner surface of which is movably connected to the outer surface of the drive shaft. A fixed sleeve is fixedly connected to the end of the drive shaft away from the bearing. The roller has a groove inside, a spring is fixedly connected to the end of the groove, and a slide is fixedly connected to the end of the spring away from the bearing.

[0009] Preferably, the slide cylinder is provided with a synchronization mechanism, which includes a fixed plate. The upper and lower ends of the fixed plate are fixedly connected to the inner wall of the slide cylinder. The fixed plate is provided with a rotating shaft inside. A gear is fixedly connected to the outer surface of the rotating shaft. A rack is fixedly connected to the end of the fixed sleeve.

[0010] Preferably, the number of automatic roller mechanisms is set to two sets, and each set of automatic roller mechanisms is placed in a mirror image symmetrically.

[0011] Preferably, the inner surface of the second groove is provided with a limiting groove, and the outer surface of the fixed sleeve is fixedly connected with a limiting block, the size of the limiting block matching the size of the limiting groove.

[0012] Preferably, the racks are provided in multiple sets, and every two sets of racks are placed in a mirror image symmetrically at the end of the fixed sleeve away from the bearing.

[0013] Preferably, the rack meshes with the upper and lower ends of the gear.

[0014] Preferably, the diameter of the hole provided on the side wall of the roller is smaller than the diameter of the groove.

[0015] Compared with the prior art, this utility model provides a power construction line-laying pulley with the following features:

[0016] Beneficial effects:

[0017] 1. This power construction cable laying pulley, when cable replacement is required in actual work, achieves real-time dynamic response to changes in cable thickness through the coordinated design of the automatic roller mechanism. When the cable thickness changes, spring two pushes the slide cylinder to slide along the groove two, causing the fixed sleeve to shift. Then, through the linkage between spring three and the transmission shaft, the contact pressure of the roller is adjusted, enhancing the lateral stability of the cable. In addition, in conjunction with spring one, the downward force of the automatic roller mechanism on both sides is applied to achieve longitudinal stability of the cable.

[0018] 2. To avoid uneven adjustment of the two rollers, this power construction line laying pulley is equipped with a synchronization mechanism. When the two rollers are displaced, the rack fixedly connected to the end of the fixed sleeve will synchronously drive the gear to rotate. The rack is meshed on both the upper and lower sides of the gear, which can realize the synchronous displacement of the two rollers and ensure the working stability of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a side sectional view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the automatic roller mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the synchronization mechanism of this utility model.

[0023] In the diagram: 1. Frame; 101. Groove 1; 102. Connector; 103. Bearing 1; 104. Hook; 2. Automatic roller mechanism; 201. Roller; 202. Receiving block; 203. Bearing 2; 204. Drive shaft; 205. Movable sleeve; 206. Spring 1; 207. Fixed rod; 208. Slide cylinder; 209. Groove 2; 210. Spring 2; 211. Spring 3; 212. Fixed sleeve; 3. Synchronization mechanism; 301. Gear; 302. Fixed plate; 303. Rack; 304. Rotating shaft. Detailed Implementation

[0024] like Figures 1-4 As shown, this utility model provides a technical solution: a power construction line laying pulley, including a frame 1, a groove 101 is provided on the side wall of the frame 1, and through holes are provided on the upper and lower surfaces of the frame 1. The outer wall of a bearing 103 is fixedly connected inside the through holes, and a connector 102 is fixedly connected to the inner wall of the bearing 103. By providing the bearing 103, the connector 102 can rotate 360 ​​degrees without dead angles, thereby improving the working range of the equipment. A hook 104 is fixedly connected to the upper surface of the connector 102. An automatic roller mechanism 2 is provided inside the frame 1. The automatic roller mechanism 2 includes a receiving block 202, a roller 201, a second bearing 203, a transmission shaft 204, a movable sleeve 205, a first spring 206, a fixed rod 207, a slide cylinder 208, a second groove 209, a second spring 210, a third spring 211, and a fixed sleeve 212.

[0025] In one embodiment of this utility model, a receiving block 202 is disposed within a groove 101. A movable sleeve 205 is fixedly connected to the upper surface of the receiving block 202, a fixing rod 207 is fixedly connected to the upper surface of the receiving block 202, and a spring 206 is fixedly connected to the upper surface of the receiving block 202. By providing the movable sleeve 205 and the spring 206, cables of different thicknesses can be stably fixed to the outer surface of the roller 201. The outer wall of a bearing 203 is fixedly connected through the inside of the receiving block 202, and a drive shaft 204 is fixedly connected to the inner wall of the bearing 203. Through the drive shaft 204 and the bearing 203, the automatic roller mechanism 2 can rotate. A hole is provided at the end of the roller 201. The surface is movably connected to the outer surface of the drive shaft 204. A spring 211 is fixedly connected to the end of the drive shaft 204 away from the bearing 203. A fixed sleeve 212 is fixedly connected to the end of the spring 211 away from the drive shaft 204. A groove 209 is provided inside the roller 201. A spring 210 is fixedly connected to the end of the groove 209. A slide cylinder 208 is fixedly connected to the end of the spring 210 away from the bearing 203. Through the fixed sleeve 212, spring 210, groove 209 and spring 211, the automatic roller mechanism 2 can adapt to cables of different thicknesses. When the cable is too thick, the expansion and compression of spring 210 and spring 211 can better fix different types of cables.

[0026] In addition, in order to ensure that the rollers 201 on both sides of the slide 208 have the same displacement, the equipment is equipped with a synchronization mechanism 3. The synchronization mechanism 3 includes a fixed plate 302. The upper and lower ends of the fixed plate 302 are fixedly connected to the inner wall of the slide 208. A rotating shaft 304 is provided inside the fixed plate 302. A gear 301 is fixedly connected to the outer surface of the rotating shaft 304. A rack 303 is fixedly connected to the end of the fixed sleeve 212. By setting up the synchronization mechanism 3, when the rollers 201 on both sides are displaced, the rack 303 fixedly connected to the end of the fixed sleeve 212 will synchronously drive the gear 301 to rotate. The rack 303 is meshed on both the upper and lower sides of the gear 301, which can realize the synchronous displacement of the rollers 201 on both sides and ensure the working stability of the equipment.

[0027] In the embodiments of this utility model, the number of automatic roller mechanisms 2 is set in multiple groups, and each group of automatic roller mechanisms 2 is placed in a mirror symmetrical manner. By setting two adjacent groups of automatic roller mechanisms 2, different cables can be adapted to increase the stability of the equipment during operation. The inner surface of the groove 209 is provided with a limiting groove, and the outer surface of the fixed sleeve 212 is fixedly connected with a limiting block. The size of the limiting block matches the size of the limiting groove, so that when the cable thickness exceeds the upper limit of the equipment, the fixed sleeve 212 will not detach from the roller 201.

[0028] In this invention, during use, the cable is first passed through the roller 201 on the lower side of the trolley. If the cable thickness is just right with the diameter of the roller 201, it can be used directly. When the cable thickness is greater than or less than the diameter of the roller 201, the fixed sleeve 212 can be displaced by the spring 210 and the spring 311, thereby driving the roller 201 to move, so that the roller 201 matches the thicker cable. At the same time, the spring 1206 can apply a downward force to the roller 201 to provide stability to the cable. Meanwhile, the synchronous mechanism 3 can move the rack 303, thereby driving the gear 301 to rotate, so that the racks 303 on both sides move synchronously, so that the rollers 201 on both sides can always maintain the same distance, reducing cable wear and improving the working efficiency of the equipment.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A power line laying pulley, comprising a frame (1), wherein a groove (101) is provided on the side wall of the frame (1), and through holes are provided on the upper and lower surfaces of the frame (1), wherein the outer wall of a bearing (103) is fixedly connected to the through hole, a connector (102) is fixedly connected to the inner wall of the bearing (103), and a hook (104) is fixedly connected to the upper surface of the connector (102), characterized in that: The frame (1) is equipped with an automatic roller mechanism (2), which includes: A receiving block (202) is disposed in a first trench (101). A movable sleeve (205) is fixedly connected to the upper surface of the receiving block (202). A fixing rod (207) is fixedly connected to the upper surface of the receiving block (202). A spring (206) is fixedly connected to the upper surface of the receiving block (202). The outer wall of a bearing (203) is fixedly connected through the inside of the receiving block (202). A drive shaft (204) is fixedly connected to the inner wall of the bearing (203). A roller (201) has a hole at its end. The inner surface of the hole is movably connected to the outer surface of the drive shaft (204). A spring (211) is fixedly connected to the end of the drive shaft (204) away from the bearing (203). A fixed sleeve (212) is fixedly connected to the end of the spring (211) away from the drive shaft (204). A groove (209) is provided inside the roller (201). A spring (210) is fixedly connected to the end of the groove (209). A slide cylinder (208) is fixedly connected to the end of the spring (210) away from the bearing (203).

2. The power construction line-laying pulley according to claim 1, characterized in that: The sliding cylinder (208) is provided with a synchronization mechanism (3). The synchronization mechanism (3) includes a fixing plate (302). The upper and lower ends of the fixing plate (302) are fixedly connected to the inner wall of the sliding cylinder (208). The fixing plate (302) is provided with a rotating shaft (304). A gear (301) is fixedly connected to the outer surface of the rotating shaft (304). A rack (303) is fixedly connected to the end of the fixing sleeve (212).

3. The power construction line-laying pulley according to claim 1, characterized in that: There are two sets of automatic roller mechanisms (2), and each set of automatic roller mechanisms (2) is placed in a mirror image symmetrically, one above the other.

4. The power construction line-laying pulley according to claim 1, characterized in that: The inner surface of the second groove (209) is provided with a limiting groove, and the outer surface of the fixed sleeve (212) is fixedly connected with a limiting block, the size of the limiting block being matched with the size of the limiting groove.

5. A power construction line-laying pulley according to claim 2, characterized in that: The number of racks (303) is provided in multiple sets, and each pair of racks (303) are placed in a mirror image symmetrically at the end of the fixed sleeve (212) away from the bearing (203).

6. A power construction line-laying pulley according to claim 2, characterized in that: The rack (303) meshes with the upper and lower ends of the gear (301).

7. A power construction line-laying pulley according to claim 2, characterized in that: The diameter of the hole set on the side wall of the roller (201) is smaller than the diameter of the second groove (209).

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