Anti-twisting device for steel wire rope

Abstract

The utility model discloses a steel wire rope anti-twisting device which comprises a balance lifting appliance and lifting lugs, the balance lifting appliance comprises an upper lifting frame and a lower lifting frame, the upper end of the upper lifting frame is respectively connected with the lifting lugs, the lower end of the upper lifting frame is hinged with the upper end of the lower lifting frame, and the upper lifting frame and the lower lifting frame only can mutually swing in the left-right direction. Lifting lug holes are respectively formed in the lower ends of the lower lifting frames. The lifting lug at the upper end of the upper lifting frame is connected with the connecting shackle to connect the opening and closing steel wire rope, the lifting lug hole in the lower end of the lower lifting frame is connected with the grab bucket opening and closing steel wire rope through the lifting lug and the connecting shackle, and the lower end of the upper lifting frame and the upper end of the lower lifting frame are hinged to each other, so that the lifting appliance is convenient to use in the lifting process. Corresponding steel wire ropes are relatively limited on the left and right sides of the upper hanging bracket and the lower hanging bracket, so that the condition that the steel wire ropes are twisted is avoided; and through the hinged arrangement of the upper hanging bracket and the lower hanging bracket, the situation that the lengths of the steel wire ropes are inconsistent can be automatically adjusted in the using process, and therefore uneven stress of the steel wire ropes is avoided.

Description

Technical Field

[0001] The utility model relates to an anti-twisting device, in particular to an anti-twisting device for a steel wire rope. Background Art

[0002] When the wire rope is subjected to a large load, it will change from a loose state to a tight state. In this process, the wire rope itself will rotate and accumulate stress. In severe cases, the wire rope will jump, especially when the wire rope is long. The amplitude of the wire rope jump will be more obvious. This is caused by the structure of the wire rope. During the lifting process, the hoisting device and the traction power mechanism are usually connected by wire ropes, such as the attached Figure 8 and attached Fig. 9 As shown, the traction power device pulls the opening and closing wire rope to move the grab bucket from an open state to a closed state. During this process, the grab bucket will grab the material, and the opening and closing wire rope will be under a large load. The running stroke of the opening and closing wire rope will generally exceed 10 meters. At this time, the wire rope is prone to a large jumping amplitude, and the two opening and closing wire ropes on the inner side are prone to entanglement. This phenomenon is called wire rope entanglement, which will cause serious wear of the wire rope and even safety accidents.

[0003] Therefore, there is an urgent need for a wire rope anti-twisting device to solve the problem that the wire rope may be twisted when in use. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a device for preventing the steel wire rope from twisting, so as to solve the problem that the steel wire rope may twist when in use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wire rope anti-tangle device, characterized in that it includes a balancing hanger and a lifting lug, the balancing hanger includes an upper hanger and a lower hanger, the left and right sides of the upper end of the upper hanger are respectively connected with lifting lugs for connecting the upper opening and closing wire rope, the lower end of the upper hanger is hinged to the upper end of the lower hanger, and the upper hanger and the lower hanger can only swing relative to each other in the left and right directions, and the left and right sides of the lower end of the lower hanger are respectively provided with lifting lug holes for connecting the lower grab opening and closing wire rope.

[0007] To optimize the above technical solutions, the specific measures taken also include:

[0008] Furthermore, the upper hanger is in the shape of an inverted triangle that is wide at the top and narrow at the bottom, and the lower hanger is in the shape of a regular triangle that is narrow at the top and wide at the bottom. The lower end of the upper hanger is provided with a connecting groove for the upper end of the lower hanger to be inserted, and the upper end of the lower hanger is inserted into the connecting groove at the lower end of the upper hanger and is hinged by an axis.

[0009] Furthermore, the lower end of the upper hanger and the upper end of the lower hanger are rotatably arranged on the shaft respectively, and a circle of shaft sleeve is also provided at the rotation connection between the lower hanger and the shaft.

[0010] Furthermore, the shaft sleeve is a copper sleeve.

[0011] Furthermore, the end surfaces on the front and rear sides of the upper hanger that are away from each other are respectively provided with a circle of outer reinforcement connecting rings, and the end surfaces on the front and rear sides of the lower hanger that are away from each other are respectively provided with a circle of inner reinforcement connecting rings, and the lower hanger and the inner reinforcement connecting rings can be inserted into the connecting groove, the inner ring of the outer reinforcement connecting ring is sleeved on the outer wall of the shaft, and the inner ring of the inner reinforcement connecting ring is sleeved on the outer wall of the shaft sleeve.

[0012] Furthermore, an oil hole is provided in the middle of the shaft and is radially penetrated.

[0013] Furthermore, the end of the shaft is fixedly connected to the end surface of the upper hanger in the front-to-rear direction through a shaft clamping plate and bolts.

[0014] Furthermore, left and right sides of the upper hanger are respectively provided with side reinforcement plates for reinforcing the connection between the front and rear end surfaces of the upper hanger.

[0015] Furthermore, an upper reinforcing plate for reinforcing the connection between the front and rear end surfaces of the upper hanger is provided at the upper end of the upper hanger.

[0016] Furthermore, the lifting lug is rotatably connected to the upper end of the upper hanger.

[0017] The beneficial effects of the utility model are:

[0018] The utility model connects the opening and closing wire rope through the connecting buckle via the lifting ear at the upper end of the upper hanger, and connects the opening and closing wire rope of the grab bucket via the lifting ear hole at the lower end of the lower hanger using the lifting ear and the connecting buckle, and the lower end of the upper hanger and the upper end of the lower hanger are hinged to each other, so that during the lifting process of the hoist, the corresponding wire rope is relatively limited on the left and right sides of the upper hanger and the lower hanger, thereby avoiding the situation of the wire rope being twisted; at the same time, through the hinged setting of the upper hanger and the lower hanger, the inconsistent length of the wire rope can be automatically adjusted during use, thereby avoiding the risk of uneven force on the wire rope caused by inconsistent length of the wire rope, and it is beneficial to the maintenance of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the use of a wire rope anti-twisting device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a steel wire rope anti-twisting device proposed by the utility model;

[0021] Figure 3 This is a structural side view of a steel wire rope anti-twisting device proposed by the utility model;

[0022] Figure 4 A schematic diagram of the structure of an upper hanger of a wire rope anti-twisting device proposed by the utility model;

[0023] Figure 5 for Figure 4 Structural cross-section view at AA in the middle;

[0024] Figure 6 This is a structural schematic diagram of a lower hanger of a wire rope anti-twisting device proposed by the utility model;

[0025] Figure 7 for Figure 6 Structural cross-section view at the middle BB;

[0026] Figure 8 It is a schematic diagram of the wire rope structure when the grab is in the closed state;

[0027] Fig. 9 Schematic diagram of the wire rope structure when the grab is in open state.

[0028] Figure numerals: 1. Opening and closing wire rope, 2. Balancing sling, 21. Upper hanger, 22. Lower hanger, 23. Lifting ear, 24. Shaft, 25. Upper reinforcement plate, 26. Side reinforcement plate, 27. External reinforcement connecting ring, 28. Internal reinforcement connecting ring, 29. Lifting ear hole, 3. Grab bucket opening and closing wire rope, 4. Support wire rope, 5. Connecting shackle, 6. Grab bucket support chain, 7. Bushing, 8. Axle clamping plate, 9. Bolt. DETAILED DESCRIPTION

[0029] The utility model is described in detail below with reference to the accompanying drawings.

[0030] As attached Figure 1 and attached Figure 2 As shown, a wire rope anti-tangling device of an embodiment of the utility model includes a balancing sling 2 and a lifting ear 23. The balancing sling 2 includes an upper hanger 21 and a lower hanger 22. The left and right sides of the upper end of the upper hanger 21 are symmetrically connected with the lifting ears 23 for connecting the upper opening and closing wire rope 1. The lower end of the upper hanger 21 is hinged to the upper end of the lower hanger 22, and the upper hanger 21 and the lower hanger 22 can only swing around the rotating connection in the left and right directions. The left and right sides of the lower end of the lower hanger 22 are respectively provided with lifting ear holes 29 for connecting the lower grab opening and closing wire rope 3.

[0031] The utility model connects the opening and closing wire rope 1 by connecting the connecting buckle 5 through the lifting ear 23 at the upper end of the upper hanger 21, and connects the grab bucket opening and closing wire rope 3 by using the lifting ear 23 and the connecting buckle 5 through the lifting ear hole 29 at the lower end of the lower hanger 22, and the lower end of the upper hanger 21 and the upper end of the lower hanger 22 are hinged to each other, so that during the lifting process of the sling, the corresponding wire rope is relatively limited on the left and right sides of the upper hanger 21 and the lower hanger 22, thereby avoiding the situation of the wire rope being twisted; at the same time, through the hinged setting of the upper hanger 21 and the lower hanger 22, the inconsistent length of the wire rope can be automatically adjusted during use, thereby avoiding the risk of uneven force on the wire rope caused by inconsistent length of the wire rope, and it is beneficial to the maintenance of the wire rope.

[0032] In this embodiment, the lifting lug 23 can be welded to the upper end of the upper hanger 21 to limit the release of stress of the wire rope through rotation, thereby reducing the possibility of wire rope jumping and avoiding the situation where the wire rope is twisted.

[0033] As attached Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7 As shown, in another specific embodiment, the upper hanger 21 is in the shape of an inverted triangle that is wide at the top and narrow at the bottom, and the lower hanger 22 is in the shape of an equilateral triangle that is narrow at the top and wide at the bottom. The end of the lower end of the upper hanger 21 is provided with a connection groove for the upper end of the lower hanger 22 to be inserted, and the upper end of the lower hanger 22 is inserted into the connection groove at the lower end of the upper hanger 21, and is hinged by the shaft 24 to form a butterfly-shaped structure. In this way, the swing amplitude between the upper hanger 21 and the lower hanger 22 can be guaranteed by the connection between the inverted triangle-shaped upper hanger 21 and the equilateral triangle-shaped lower hanger 22. At the same time, the upper end of the lower hanger 22 is inserted into the connection groove at the lower end of the upper hanger 21, and the hinge of the shaft 24 can ensure the use strength of the upper hanger 21 and the lower hanger 22.

[0034] In another specific embodiment, the lower end of the upper hanger 21 and the upper end of the lower hanger 22 are rotatably arranged on the shaft 24, and a circle of sleeve 7 is also arranged at the rotation connection between the lower hanger 22 and the shaft 24. Thus, by setting the sleeve 7, the rotation effect of the lower hanger 22 can be guaranteed, and at the same time, it is convenient to replace the damaged parts. The sleeve 7 can be a copper sleeve.

[0035] Among them, in another specific embodiment, the end faces of the upper hanger 21 on both sides away from each other are respectively provided with a circle of outer reinforcement connection ring 27, and the end faces of the lower hanger 22 on both sides away from each other are respectively provided with a circle of inner reinforcement connection ring 28, and the lower hanger 22 and the inner reinforcement connection ring 28 can be inserted into the connection groove, and the inner ring of the outer reinforcement connection ring 27 is fitted and sleeved on the outer wall of the shaft 24, and the inner ring of the inner reinforcement connection ring 28 is fitted and sleeved on the outer wall of the shaft sleeve 7. In this way, when in use, the reliability of the connection between the devices can be increased by the fitting arrangement of the outer reinforcement connection ring 27 and the shaft 24, and the fitting arrangement of the inner reinforcement connection ring 28 and the shaft sleeve 7, and at the same time, the connection strength of the hinge can be increased.

[0036] As attached Figure 3 As shown, in another specific embodiment, an oil hole is provided in the middle of the shaft 24 and is opened in the radial direction. In this way, the rotation of the device can be lubricated by pre-setting lubricating oil in the oil hole. In this embodiment, a refueling hole connected to the oil hole is also provided along the axial direction of the shaft 24, and an oil plug is provided at the opening of the refueling hole, so that the oil hole can be filled with oil through the refueling hole as needed, thereby ensuring long-term lubrication of the device.

[0037] In another specific embodiment, the end of the shaft 24 is fixedly connected to the end surface of the upper hanger 21 in the front-rear direction through the shaft clamping plate 8 and the bolt 9. In this way, the stability of the device connection can be increased.

[0038] In another specific embodiment, the left and right sides of the upper hanger 21 are respectively provided with side reinforcing plates 26 for reinforcing the connection between the front and rear end surfaces of the upper hanger 21. The upper end of the upper hanger 21 is provided with an upper reinforcing plate 25 for reinforcing the connection between the front and rear end surfaces of the upper hanger 21. In this way, the structural strength of the upper hanger 21 structure can be increased. In this embodiment, the lower hanger 22 can also be provided with a reinforcing plate as needed.

[0039] In another specific embodiment, the lifting lug 23 is rotatably connected to the upper end of the upper hanger 21. In this way, when in use, the lifting lug 23 can be rotatably connected to the upper hanger 21 to provide the opening and closing wire rope 1 connected thereto with the ability to rotate itself, thereby releasing the stress of the opening and closing wire rope 1 to a certain extent.

[0040] The utility model has a simple layout, simple parts and components, and strong practicality. Through the arrangement of the lifting lug 23, the upper hanger 21 and the lower hanger 22, the wire rope can be stably prevented from being twisted. Through the hinge shaft connection between the upper hanger 21 and the lower hanger 22, the problem of uneven force on the wire rope caused by inconsistent wire rope lengths can be avoided during use, and it is more beneficial for the maintenance of the wire rope.

[0041] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the utility model. Changes or adjustments in their relative relationships should be regarded as the scope of implementation of the utility model without substantially changing the technical content.

[0042] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. A wire rope anti-twisting device, characterized in that: The invention comprises a balancing sling (2) and a lifting lug (23), wherein the balancing sling (2) comprises an upper hanger (21) and a lower hanger (22), the left and right sides of the upper end of the upper hanger (21) are respectively connected with a lifting lug (23) for connecting an upper opening and closing wire rope (1), the lower end of the upper hanger (21) is hinged to the upper end of the lower hanger (22), and the upper hanger (21) and the lower hanger (22) can only swing relative to each other in the left and right directions, and the left and right sides of the lower end of the lower hanger (22) are respectively provided with a lifting lug hole (29) for connecting a lower grab opening and closing wire rope (3).

2. A wire rope anti-twisting device according to claim 1, characterized in that: The upper hanger (21) is in the shape of an inverted triangle that is wider at the top and narrower at the bottom, and the lower hanger (22) is in the shape of a regular triangle that is narrower at the top and wider at the bottom. The lower end of the upper hanger (21) is provided with a connecting groove into which the upper end of the lower hanger (22) can be inserted, and the upper end of the lower hanger (22) is inserted into the connecting groove at the lower end of the upper hanger (21) and is hinged via a shaft (24).

3. A wire rope anti-twisting device according to claim 2, characterized in that: The lower end of the upper hanger (21) and the upper end of the lower hanger (22) are rotatably arranged on the shaft (24), and a circle of shaft sleeve (7) is also provided at the rotation connection between the lower hanger (22) and the shaft (24).

4. A wire rope anti-twisting device according to claim 3, characterized in that: The shaft sleeve (7) is a copper sleeve.

5. A wire rope anti-twisting device according to claim 3, characterized in that: The end surfaces on the front and rear sides of the upper hanger (21) that are away from each other are respectively provided with a circle of outer reinforcing connecting rings (27), and the end surfaces on the front and rear sides of the lower hanger (22) that are away from each other are respectively provided with a circle of inner reinforcing connecting rings (28). Both the lower hanger (22) and the inner reinforcing connecting ring (28) can be inserted into the connecting groove, and the inner ring of the outer reinforcing connecting ring (27) is sleeved on the outer wall of the shaft (24), and the inner ring of the inner reinforcing connecting ring (28) is sleeved on the outer wall of the shaft sleeve (7).

6. A wire rope anti-twisting device according to claim 2, characterized in that: An oil hole is provided in the middle of the shaft (24) and is radially penetrated.

7. A wire rope anti-twisting device according to claim 2, characterized in that: The end of the shaft (24) is fixedly connected to the end surface of the upper hanger (21) in the front-rear direction via a shaft clamping plate (8) and a bolt (9).

8. A wire rope anti-twisting device according to claim 2, characterized in that: Side reinforcing plates (26) for reinforcing the connection between the front and rear end surfaces of the upper hanger (21) are respectively provided on the left and right sides of the upper hanger (21).

9. A wire rope anti-twisting device according to claim 2, characterized in that: An upper reinforcing plate (25) for reinforcing the connection between the front and rear end surfaces of the upper hanger (21) is provided at the upper end of the upper hanger (21).

10. A wire rope anti-twisting device according to claim 1, characterized in that: The lifting lug (23) is rotatably connected to the upper end of the upper hanging bracket (21).

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