Traveling crane power line fixing pulley sleeve

Abstract

The utility model discloses a traveling crane power line fixing pulley sleeve which comprises a bottom frame, a steel wire rope penetrates through the inner side of the bottom frame, and upper pulleys abutting against the top of the steel wire rope and lower pulleys abutting against the bottom of the steel wire rope are rotationally connected to the positions, close to the top, of the two ends of the bottom frame. The steel wire rope tensioning device comprises a bottom frame, a tensioning mechanism facilitating adjustment of the tensioning degree of a steel wire rope is arranged at the position, close to the bottom, of the inner side of the bottom frame, and a locking mechanism used in cooperation with the tensioning mechanism is installed on the outer side of the bottom frame. The adjusting disc can be prevented from rotating anticlockwise, the stability of adjusting the tension degree of the steel wire rope is guaranteed, and therefore the situation that due to looseness of the steel wire rope, the pulley is blocked and deadly stuck in the running process can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley sleeves, in particular to a pulley sleeve for fixing a power line of a vehicle. Background Art

[0002] Crane is the common name for cranes such as cranes, overhead cranes, and overhead cranes. It is a lifting machinery used to lift heavy objects. A crane is usually composed of a steel beam across the workshop and a movable crane installed at the bottom of the steel beam. It plays the role of lifting heavy objects. In order to provide power to the crane, it is necessary to install a wire rope in front of the crane so that the crane power line leading to the crane is hoisted on the wire rope through a pulley, so that the crane power line can move with the crane.

[0003] When the crane is used for a long time, the steel rope used for the crane power supply will become loose under long-term tension, causing the steel rope to fall, and the pulley used to hoist the crane power supply will become stuck on the steel rope. In severe cases, the pulley will be stuck on the steel rope and the power cord will be broken, causing short circuits, fires and other accidents.

[0004] Therefore, a driving power line fixing pulley sleeve is needed to solve the problems raised in the above background technology. Utility Model Content

[0005] In view of the above problems, the utility model provides a driving power line fixing pulley sleeve.

[0006] The utility model provides the following technical solution: a driving power line fixing pulley sleeve, comprising a base frame, a steel wire rope passing through the inner side of the base frame, an upper pulley in contact with the top of the steel wire rope and a lower pulley in contact with the bottom of the steel wire rope are rotatably connected at positions near the top of both ends of the base frame, a tensioning mechanism for facilitating the adjustment of the tension of the steel wire rope is provided at a position near the bottom of the inner side of the base frame, and a locking mechanism used in conjunction with the tensioning mechanism is installed at the outer side of the base frame;

[0007] The tensioning mechanism includes multiple groups of tensioning plates that interfere with the steel wire ropes, a connecting shaft is provided on the inner side of the base frame near the bottom, a base is sleeved on the outer side of the connecting shaft, multiple groups of slide grooves and multiple groups of through grooves that penetrate the multiple groups of slide grooves are provided on the side of the base, the inner sides of the multiple groups of slide grooves are slidably connected to connecting rods with one end connected to the tensioning plates, the other ends of the multiple groups of connecting rods are provided with interference rods that penetrate the through grooves, a turntable is rotatably connected to the outer side of the connecting shaft, multiple groups of movable grooves that are respectively matched with the multiple groups of interference rods are provided on one side of the turntable, and one side of the turntable is connected to an adjusting disk arranged on the outer side of the base frame through a connecting tube.

[0008] In a further technical solution, the locking mechanism includes a locking gear, which is sleeved on the outer side of the connecting tube. One side of the locking gear is rotatably connected to a contact plate that contacts the teeth of the locking gear. A pressure plate is provided at one end of the contact plate. A fixed plate connected to one side of the base frame is provided below the pressure plate. The top of the fixed plate is connected to the bottom of the pressure plate through a spring.

[0009] In a further technical solution, when the plurality of groups of tensioning plates move inward, a circular ring can be formed to fit the outer ring position of the base.

[0010] In a further technical solution, the outer circles of the upper pulley, the lower pulley and the tensioning plate are all provided with annular wheel grooves.

[0011] In a further technical solution, a connecting base is provided at the bottom of the base frame, and the bottom of the connecting base is connected to the clamping seat through two groups of fastening bolts.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model can drive the connecting cylinder to rotate by rotating the adjusting disk clockwise, and the connecting cylinder can drive the rotating disk to rotate. While the rotating disk is rotating, the multiple groups of movable grooves can cooperate with the multiple groups of resistance rods to move to the outside of the base, and the multiple groups of resistance rods can drive the multiple groups of connecting rods to slide outward along the multiple groups of slide grooves respectively, and the multiple groups of connecting rods can drive the multiple groups of tensioning plates to move outward, so that the conflicting steel wire ropes can be tensioned under the resistance of the multiple groups of tensioning plates to keep the steel wire ropes taut, and then through the setting, it can effectively avoid the jamming and blocking of the pulley due to the relaxation of the steel wire rope during travel.

[0014] 2. The utility model can drive one end of the pressure plate to bounce upwards by means of the spring, and the pressure plate can drive one end of the resistance plate to fit with the locking gear. When the tension of the wire rope is adjusted, the locking gear can rotate freely clockwise. When the locking gear stops rotating, one end of the resistance plate can move between the two sets of teeth of the locking gear, so that the locking gear can be resisted and fixed, thereby ensuring the stability of the wire rope tension adjustment and preventing it from rotating counterclockwise. When counterclockwise rotation is required, the pressure plate is pressed, the pressure plate compresses the spring and can drive the resistance plate to rotate at the same time, thereby making one end of the resistance plate disengage from the locking gear, facilitating the counterclockwise rotation of the locking gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2This is the bottom view of the utility model;

[0017] Figure 3 This is the front view sectional view of the utility model;

[0018] Figure 4 This is the side sectional view of the utility model;

[0019] Figure 5 is Figure 3 the enlarged view of part A in

[0020] Figure 6 is Figure 4 the enlarged view of part B in

[0021] In the figure: 1, chassis; 2, upper pulley; 3, lower pulley; 4, steel wire rope; 5, connecting shaft; 6, base; 7, chute; 8, through slot; 9, connecting rod; 10, tensioning plate; 11, resisting rod; 12, turntable; 13, movable slot; 14, connecting cylinder; 15, locking gear; 16, adjusting disc; 17, resisting plate; 18, pressing plate; 19, fixing plate; 20, spring; 21, connecting base; 22, card seat; 23, fastening bolt. Specific embodiments

[0022] The following further illustrates the embodiments of the present utility model with reference to the accompanying drawings.

[0023] Embodiment: Referring to Figures 1-5 , a fixing pulley sleeve for the driving power cord, comprising a chassis 1, a steel wire rope 4 penetrates through the inside of the chassis 1, upper pulleys 2 that are rotatably connected to the top of the steel wire rope 4 and lower pulleys 3 that are rotatably connected to the bottom of the steel wire rope 4 are provided at both ends of the chassis 1 near the top, a tensioning mechanism for facilitating the adjustment of the tension of the steel wire rope 4 is provided at the inside of the chassis 1 near the bottom, and a locking mechanism that cooperates with the tensioning mechanism is installed on the outside of the chassis 1;

[0024] The tensioning mechanism includes a plurality of tensioning plates 10 that are in contact with the steel wire rope 4, a connecting shaft 5 is provided at the inside of the chassis 1 near the bottom, a base 6 is sleeved on the outside of the connecting shaft 5, a plurality of chutes 7 and a plurality of through slots 8 that communicate with the plurality of chutes 7 are provided on the side of the base 6, one ends of a plurality of connecting rods 9 that are slidably connected to the inside of the plurality of chutes 7 are connected to the tensioning plates 10, the other ends of the plurality of connecting rods 9 are all provided with resisting rods 11 that penetrate through the through slots 8, a turntable 12 is rotatably connected to the outside of the connecting shaft 5, a plurality of movable slots 13 that are respectively adapted to the plurality of resisting rods 11 are provided on one side of the turntable 12, and one side of the turntable 12 is connected to an adjusting disc 16 provided on the outside of the chassis 1 through a connecting cylinder 14.

[0025] Specifically, by providing the base frame 1, two sets of upper pulleys 2 and two sets of lower pulleys 3, the device can be conveniently mounted on the top of the wire rope 4 for stable sliding operation. When the wire rope 4 is loose, the adjusting disk 16 can be rotated clockwise, and the adjusting disk 16 can drive the connecting cylinder 14 to rotate, and the connecting cylinder 14 can drive the rotating disk 12 to rotate. While the rotating disk 12 rotates, the multiple sets of movable grooves 13 can be respectively cooperated with the multiple sets of resistance rods 11 to drive the multiple sets of resistance rods 11 to move to the outside of the base 6, and the multiple sets of resistance rods 11 can The multiple groups of connecting rods 9 are driven to slide outward along the multiple groups of slide grooves 7 respectively. The multiple groups of connecting rods 9 can drive the multiple groups of tensioning plates 10 to move outward, so that the conflicting wire ropes 4 can be tensioned under the resistance of the multiple groups of tensioning plates 10 to keep the wire ropes 4 taut. The locking mechanism is set to prevent the adjusting disk 16 from rotating counterclockwise, thereby ensuring the stability of the tension adjustment of the wire rope 4. Furthermore, the above structure can effectively prevent the pulley from getting stuck or jammed due to the loose wire rope 4 during travel.

[0026] Among them, the locking mechanism includes a locking gear 15, which is sleeved on the outer side of the connecting tube 14. One side of the locking gear 15 is rotatably connected to a contact plate 17 that contacts the teeth of the locking gear 15. One end of the contact plate 17 is provided with a pressure plate 18. A fixing plate 19 connected to one side of the base frame 1 is provided below the pressure plate 18. The top of the fixing plate 19 is connected to the bottom of the pressure plate 18 through a spring 20. The spring 20 can drive one end of the pressure plate 18 to bounce upward, and the pressure plate 18 can drive one end of the contact plate 17 to fit with the locking gear 15. When the wire rope 4 is tensioned, When the locking gear 15 is adjusted, the locking gear 15 can rotate freely clockwise. When the locking gear 15 stops rotating, one end of the contact plate 17 can move between the two sets of teeth of the locking gear 15, so that the locking gear 15 can be fixed by contact, thereby ensuring the stability of the tension adjustment of the wire rope 4 and preventing it from rotating counterclockwise. When counterclockwise rotation is required, the pressure plate 18 is pressed, and the pressure plate 18 compresses the spring 20, and at the same time, the contact plate 17 can be driven to rotate, so that one end of the contact plate 17 can be disengaged from the locking gear 15, facilitating the counterclockwise rotation of the locking gear 15.

[0027] Among them, when multiple groups of tensioning plates 10 move inward, a circular ring can be formed to fit the outer circle position of the base 6. Through the setting, the device can be easily slid on the wire rope 4. The outer circles of the upper pulley 2, the lower pulley 3 and the tensioning plate 10 are all provided with annular wheel grooves. The sliding of the device can be limited by the set wheel grooves, thereby ensuring the stability of the pulley sliding on the wire rope 4.

[0028] Among them, a connection base 21 is provided at the bottom of the chassis 1, and the bottom of the connection base 21 is connected to the card holder 22 through two groups of fastening bolts 23. By providing the connection base 21, the card holder 22 and the two groups of fastening bolts 23, the installation and fixation of the rubber-sheathed cable can be facilitated.

[0029] Working principle: First, by rotating the adjusting disc 16 clockwise, the adjusting disc 16 can drive the connecting cylinder 14 and the turntable 12 to rotate. While the turntable 12 is rotating, under the abutting action of multiple groups of moving grooves 13 and multiple groups of abutting rods 11 respectively, it can drive multiple groups of abutting rods 11 to move towards the outside of the base 6. Multiple groups of abutting rods 11 can drive multiple groups of connecting rods 9 to slide outwards along multiple groups of sliding grooves 7 respectively. Multiple groups of connecting rods 9 can drive multiple groups of tensioning plates 10 to move outwards, so as to tension the abutted steel wire ropes 4, keep the steel wire ropes 4 in a taut state. While the adjusting disc 16 is rotating, it can drive the locking gear 15 to rotate freely clockwise. When the locking gear 15 stops rotating, one end of the abutting plate 17 can move between two teeth of the locking gear 15 under the action of the spring 20 and the pressing plate 18, so as to abut and fix the locking gear 15, ensuring the stability of the tension adjustment of the steel wire rope 4 and preventing it from rotating counterclockwise, and then completing the entire operation process.

[0030] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A driving power line fixing pulley sleeve, comprising a base frame, characterized in that: A steel wire rope passes through the inner side of the base frame, and both ends of the base frame near the top are rotatably connected with an upper pulley that contacts the top of the steel wire rope and a lower pulley that contacts the bottom of the steel wire rope. A tensioning mechanism for adjusting the tension of the steel wire rope is provided near the bottom of the inner side of the base frame, and a locking mechanism used in conjunction with the tensioning mechanism is installed on the outer side of the base frame; The tensioning mechanism includes multiple groups of tensioning plates that interfere with the steel wire ropes, a connecting shaft is provided on the inner side of the base frame near the bottom, a base is sleeved on the outer side of the connecting shaft, multiple groups of slide grooves and multiple groups of through grooves that penetrate the multiple groups of slide grooves are provided on the side of the base, the inner sides of the multiple groups of slide grooves are slidably connected to connecting rods with one end connected to the tensioning plates, the other ends of the multiple groups of connecting rods are provided with interference rods that penetrate the through grooves, a turntable is rotatably connected to the outer side of the connecting shaft, multiple groups of movable grooves that are respectively matched with the multiple groups of interference rods are provided on one side of the turntable, and one side of the turntable is connected to an adjusting disk arranged on the outer side of the base frame through a connecting tube.

2. A driving power line fixing pulley sleeve according to claim 1, characterized in that: The locking mechanism includes a locking gear, which is sleeved on the outside of the connecting tube. One side of the locking gear is rotatably connected to a contact plate that contacts the teeth of the locking gear. One end of the contact plate is provided with a pressure plate. A fixing plate connected to one side of the base frame is provided below the pressure plate. The top of the fixing plate is connected to the bottom of the pressure plate through a spring.

3. A driving power line fixing pulley sleeve according to claim 2, characterized in that: When the plurality of tensioning plates move inward, a circular ring can be formed to fit the outer ring position of the base.

4. A driving power line fixing pulley sleeve according to claim 3, characterized in that: The outer circles of the upper pulley, the lower pulley and the tensioning plate are all provided with annular wheel grooves.

5. The power cord fixing pulley set for a vehicle according to claim 1, characterized in that: A connecting base is provided at the bottom of the base frame, and the bottom of the connecting base is connected to the clamping seat through two groups of fastening bolts.

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