Tension adjusting device for hanging steel wire rope

Abstract

The utility model discloses a tension adjusting device for hanging a steel wire rope, which comprises a steel wire rope hanging frame and an adjusting inner frame moving relative to the steel wire rope hanging frame, and an adjusting device used for adjusting the position of the adjusting inner frame in the steel wire rope hanging frame is sleeved on the outer side of the steel wire rope hanging frame. A distance is reserved between the adjusting inner frame and the steel wire rope hanging frame; the adjusting device comprises two clamping plates, an inner frame connecting plate is arranged in the middles of the clamping plates and connected with the adjusting inner frame, and a gap is reserved between the inner frame connecting plate and the steel wire rope hanging frame. Two ends of the clamping plate are provided with shaft holes; two parallel connecting shafts are jointly installed on the two clamping plates, the two ends of each connecting shaft are installed in the shaft holes in the two clamping plates respectively, and adjusting nuts are installed at the two ends of each connecting shaft. The transverse and longitudinal distance between the adjusting inner frame and the steel wire rope hanging frame is adjusted through the adjusting device, so that sliding friction between the adjusting inner frame and the steel wire rope hanging frame is avoided, and the service life of the adjusting inner frame and the steel wire rope hanging frame is prolonged.

Description

Technical Field

[0001] This utility model relates to a tension adjustment device for steel wire rope suspension, belonging to the technical field of steel wire rope adjustment devices for mines. Background Technology

[0002] In mine friction hoist equipment, tensioning hydraulic balancing suspension devices are installed between the cage and the multiple wire ropes used to lift it. Typically, multiple tensioning hydraulic balancing suspension devices are connected in series on a single cage. By connecting these devices to form a unified hydraulic balancing system, different tensioning hydraulic balancing devices automatically and dynamically adjust themselves according to the length and tension of the wire ropes as the cage is raised and lowered, ensuring that each wire rope is subjected to balanced force. However, due to the rotational force of the connecting wire ropes, the movable adjusting inner frame in existing tensioning hydraulic balancing devices experiences significant friction with the frame, leading to dynamic adjustment failure. The friction area becomes increasingly thin, and wear significantly reduces the safety factor, creating potential safety hazards. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a tension adjustment device for wire rope suspension.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A tension adjustment device for wire rope suspension includes a wire rope suspension frame and an adjusting inner frame installed inside the wire rope suspension frame and moving relative to the wire rope suspension frame. The wire rope suspension frame is a cubic frame composed of two rectangular frames, and the adjusting inner frame is a rectangular frame sandwiched between the two rectangular frames of the wire rope suspension frame. The adjusting inner frame can move within the wire rope suspension frame. The tension adjustment device also includes a hydraulic cylinder with one end fixed to the wire rope suspension frame and the other end fixed to the adjusting inner frame. The hydraulic cylinder is used to drive the adjusting inner frame and the wire rope suspension frame to move relative to each other.

[0006] An adjustment device is fitted on the outside of the wire rope suspension frame. The adjustment device is used to adjust the position of the inner frame within the wire rope suspension frame, and a distance is left between the inner frame and the wire rope suspension frame.

[0007] The adjusting device includes two clamping plates. An inner frame connecting plate is provided in the middle of the clamping plates. The inner frame connecting plate is connected to the adjusting inner frame. A gap is left between the inner frame connecting plate and the wire rope suspension frame. Shaft holes are provided at both ends of the clamping plates. Two parallel connecting shafts are installed on the two clamping plates. The two ends of the connecting shafts are installed in the shaft holes on the clamping plates. Adjusting nuts are installed at both ends of the connecting shafts.

[0008] By adopting the above technical solution, the function of the adjusting device is to fix the adjusting inner frame by means of clamps. The clamps can be set at the end of the adjusting inner frame or at other positions. The two clamps and two connecting shafts form the frame of the adjusting device, which supports the wire rope suspension frame. The adjusting device limits the adjusting inner frame to the middle of the wire rope suspension frame, so that the adjusting inner frame does not slide and rub against the wire rope suspension frame, thereby increasing the service life of the adjusting frame and the wire rope suspension frame.

[0009] Based on the above technical solution, in order to achieve ease of use and stability of the equipment, the present invention can further improve the above technical solution as follows:

[0010] Furthermore, two rolling elements are fitted on the connecting shaft, and the rolling elements are in contact with the wire rope suspension frame.

[0011] By adopting the above technical solution, the sliding friction between the existing inner adjustment frame and the wire rope suspension frame is changed to the rolling friction between the rolling parts on both sides and the wire rope suspension frame, thereby increasing the service life of the adjustment frame and the wire rope suspension frame.

[0012] Furthermore, the rolling element is a rolling wheel or a bearing.

[0013] Furthermore, the rolling element is a rolling wheel with an outer edge, and the outer edge of the rolling wheel is located outside the wire rope suspension frame.

[0014] By adopting the above technical solution, the sliding friction between the existing inner adjustment frame and the wire rope suspension frame is replaced by the rolling friction between the rolling wheels with outer edges on both sides and the wire rope suspension frame, thereby increasing the service life of the adjustment frame and the wire rope suspension frame. Furthermore, when tightening the adjusting nut, since the outer edge of the rolling wheel is located outside the wire rope suspension frame, the outer edge of the rolling wheel will push the wire rope suspension frame towards the center of the connecting shaft, ultimately ensuring that there is a certain distance between the wire rope suspension frame and the inner adjustment frame and the clamping plate.

[0015] Furthermore, the rolling wheel is equipped with a needle roller bearing.

[0016] By adopting the above technical solution, the needle roller bearing has a large contact area, which reduces contact stress and extends the service life of the bearing. In addition, the needle roller bearing is thin, which can achieve a difference of 2-3mm between the sleeve and the connecting shaft, thereby enabling the connecting shaft to have a larger diameter and ensuring strength.

[0017] Furthermore, each clamping plate has two inner frame connecting plates, and the two inner frame connecting plates are set in parallel; the distance between the two inner frame connecting plates on the same clamping plate is not less than the thickness of the adjusting inner frame.

[0018] Furthermore, each clamp plate is threaded with a fixing bolt, which abuts against the adjusting inner frame.

[0019] By adopting the above technical solution, when adjusting the position of the inner frame within the wire rope suspension frame, after tightening the adjusting nut, the position of the fixing bolts on both sides of the inner frame on the clamp plate can be adjusted to achieve the adjustment of the inner frame's position within the wire rope suspension frame along the axial direction (defined as transverse) of the connecting shaft; when the fixing bolts abut against the inner frame, the clamp plate and the inner frame connecting plate can be fixed on the inner frame.

[0020] Furthermore, the connecting shaft can move radially within the shaft hole, and the end of the clamping plate is threaded with an adjusting bolt, which abuts against the connecting shaft, with the axial direction of the adjusting bolt perpendicular to the inner adjusting frame.

[0021] By adopting the above technical solution, when adjusting the position of the inner frame within the wire rope suspension frame, the position of the inner frame within the wire rope suspension frame along the radial direction (defined as longitudinal direction) of the connecting shaft can be adjusted by adjusting the adjusting bolts.

[0022] In summary, compared with the prior art, the beneficial effects of the above technical solution are:

[0023] (1) The two clamps and two connecting shafts in this utility model form the frame of the adjustment device and play a supporting role. The inner frame connecting plate is connected to the inner frame of adjustment. The position between the inner frame of adjustment and the wire rope suspension frame is controlled by the adjustment device, so that the original sliding friction between the inner frame of adjustment and the wire rope suspension frame is changed to the rolling friction between the rolling wheel on the adjustment device and the wire rope suspension frame, thereby avoiding the sliding friction between the inner frame of adjustment and the wire rope suspension frame and infinitely improving the service life of the inner frame of adjustment and the wire rope suspension frame.

[0024] (2) In this utility model, the rolling wheel with the outer edge contacts one side of the wire rope suspension frame. The outer edge of the rolling wheel blocks the outside of the wire rope suspension frame, so that the inner frame can be adjusted to be centered in the lateral position within the wire rope suspension frame by adjusting the adjusting nuts at both ends and the fixing bolts. Then, the inner frame can be adjusted to be centered in the longitudinal position within the wire rope suspension frame by adjusting the adjusting bolts on both sides, so that the inner frame is always in the middle position in the longitudinal and lateral directions within the wire rope suspension frame. Attached Figure Description

[0025] Figure 1 A schematic diagram of the installation structure of the wire rope suspension frame, the adjusting inner frame, and the hydraulic cylinder;

[0026] Figure 2This is a schematic diagram of the installation structure of the wire rope suspension frame, the inner adjustment frame, and the adjustment device of the wire rope suspension tension adjustment device of this utility model.

[0027] Figure 3 This is a top view of the installation structure of the wire rope suspension frame, the inner adjustment frame, and the adjustment device of the wire rope suspension tension adjustment device of this utility model.

[0028] Figure 4 for Figure 3 Sectional view of line AA in the middle;

[0029] Figure 5 for Figure 3 A cross-sectional view along the BB line.

[0030] Explanation of reference numerals in the attached drawings: 1. Wire rope suspension frame; 2. Adjusting inner frame; 3. Adjusting device; 4. Hydraulic cylinder; 3.1. Clamping plate; 3.2. Connecting shaft; 3.3. Rolling element; 3.4. Fixing bolt; 3.5. Adjusting nut; 3.6. Inner frame connecting plate; 3.7. Adjusting bolt; 3.8. Shaft hole. Detailed Implementation

[0031] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0032] This utility model discloses a tension adjustment device for wire rope suspension.

[0033] Reference Figure 1-5 A tension adjustment device for wire rope suspension includes a wire rope suspension frame 1 and an adjusting inner frame 2 installed inside the wire rope suspension frame 1 and moving relative to the wire rope suspension frame 1. The wire rope suspension frame 1 is a cubic frame composed of two rectangular frames, and the adjusting inner frame 2 is a rectangular frame sandwiched between the two rectangular frames of the wire rope suspension frame 1. The adjusting inner frame 2 can move within the wire rope suspension frame 1.

[0034] The tension adjustment device for wire rope suspension also includes a hydraulic cylinder 4 with one end fixed to the wire rope suspension frame 1 and the other end fixed to the inner adjustment frame 2. The hydraulic cylinder 4 is used to drive the inner adjustment frame 2 and the wire rope suspension frame 1 to move relative to each other.

[0035] An adjustment device 3 is fitted on the outside of the wire rope suspension frame 1. The adjustment device 3 is used to adjust the position of the inner frame 2 inside the wire rope suspension frame 1, and a distance is left between the inner frame 2 and the wire rope suspension frame 1.

[0036] The adjusting device 3 includes two clamping plates 3.1. An inner frame connecting plate 3.6 is located in the middle of each clamping plate 3.1 and is connected to the adjusting inner frame 2. A gap exists between the inner frame connecting plate 3.6 and the wire rope suspension frame 1, specifically, the gap can be approximately 1 cm. Shaft holes 3.8 are provided at both ends of each clamping plate 3.1. Two parallel connecting shafts 3.2 are mounted on both clamping plates 3.1, with both ends of the connecting shafts 3.2 respectively installed within the shaft holes 3.8 on the two clamping plates 3.1. The cross-section of the shaft hole 3.8 along the radial direction of the connecting shaft 3.2 is oval or rectangular, and the length of the shaft hole 3.8 is greater than the diameter of the connecting shaft 3.2, allowing the connecting shaft 3.2 to move radially within the shaft hole 3.8.

[0037] The end of the clamping plate 3.1 is threadedly connected to an adjusting bolt 3.7, which abuts against the connecting shaft 3.2. The axial direction of the adjusting bolt 3.7 is perpendicular to the adjusting inner frame 2. When adjusting the position of the adjusting inner frame 2 within the wire rope suspension frame 1, the adjusting bolt 3.7 can be adjusted to change the position of the adjusting inner frame 2 radially (defined as longitudinally) within the wire rope suspension frame 1, thus centering the adjusting inner frame 2 in the longitudinal position within the wire rope suspension frame 1.

[0038] Furthermore, two rolling elements 3.3 are mounted on the connecting shaft 3.2, and the rolling elements 3.3 are in contact with the wire rope suspension frame 1. The rolling elements 3.3 are rolling wheels or bearings. Specifically, the rolling elements 3.3 are rolling wheels with an outer edge, the outer edge of which is located on the outside of the wire rope suspension frame 1, and a needle roller bearing is provided inside the rolling wheel.

[0039] The two ends of the connecting shaft 3.2 are threaded with adjusting nuts 3.5. The installation position of the adjusting nuts 3.5 on the connecting shaft 3.2 is adjusted according to the width of the inner frame 2. When the adjusting nuts 3.5 are tightened, since the outer edge of the rolling wheel is located outside the wire rope suspension frame 1, the outer edge of the rolling wheel will push the wire rope suspension frame 1 towards the middle of the connecting shaft 3.2, so that there is a certain distance between the wire rope suspension frame 1 and the inner frame 2 and the clamping plate 3.1.

[0040] The existing sliding friction between the inner adjustment frame 2 and the wire rope suspension frame 1 is replaced with rolling friction between the rolling wheels with outer edges on both sides and the wire rope suspension frame 1, thereby increasing the service life of the adjustment frame 2 and the wire rope suspension frame 1.

[0041] Furthermore, each clamping plate 3.1 has two inner frame connecting plates 3.6, and the two inner frame connecting plates 3.6 are arranged in parallel. The distance between the two inner frame connecting plates 3.6 on the same clamping plate 3.1 is not less than the thickness of the adjusting inner frame 2. Each clamping plate 3.1 is threaded with a fixing bolt 3.4, which abuts against the adjusting inner frame 2.

[0042] When adjusting the position of the inner frame 2 within the wire rope suspension frame 1, after tightening the adjusting nut 3.5, the position of the inner frame 2 within the wire rope suspension frame 1 can be adjusted by adjusting the mounting positions of the fixing bolts 3.4 on both sides of the inner frame 2 on the clamping plate 3.1. This achieves the axial (defined as transverse) adjustment of the inner frame 2 along the connecting shaft 3.2 within the wire rope suspension frame 1, ensuring that the inner frame 2 is always in the middle position both longitudinally and transversely within the wire rope suspension frame 1. Specifically, by abutting the fixing bolts 3.4 against the inner frame 2, the clamping plate 3.1 and the inner frame connecting plate 3.6 can be fixed to the inner frame 2.

[0043] The function of the adjusting device 3 is to fix the adjusting inner frame 2 through the clamping plate 3.1. It can be set at the end of the adjusting inner frame 2 or at other positions. The two clamping plates 3.1 and the two connecting shafts 3.2 form the frame of the adjusting device 3, which supports the wire rope suspension frame 1. The adjusting device 3 confines the adjusting inner frame 2 in the middle of the wire rope suspension frame 1, so that the adjusting inner frame 2 does not slide and rub against the wire rope suspension frame 1, thereby increasing the service life of the adjusting frame 2 and the wire rope suspension frame 1.

[0044] The implementation principle of the tension adjustment device for wire rope suspension according to this utility model embodiment is as follows: When adjusting the position of the inner frame 2 within the wire rope suspension frame 1, the inner frame 2 is centered laterally within the wire rope suspension frame 1 by adjusting the adjusting nuts 3.5 at both ends and the fixing bolts 3.4. Then, the inner frame 2 is centered longitudinally within the wire rope suspension frame 1 by adjusting the adjusting bolts 3.7 on both sides. This ensures that the inner frame 2 is always in the middle position both longitudinally and laterally within the wire rope suspension frame 1. By controlling the position between the inner frame 2 and the wire rope suspension frame 1, the original sliding friction between them is replaced by rolling friction between the rolling wheel on the adjusting device 3 and the wire rope suspension frame 1. This avoids sliding friction between the inner frame 2 and the wire rope suspension frame 1, thus extending the service life of both indefinitely.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tension adjustment device for a wire rope suspension, comprising a wire rope suspension frame (1), characterized in that: The adjusting inner frame (2) is installed in the steel wire rope suspension frame (1) and moves relative to the steel wire rope suspension frame (1), and the hydraulic cylinder (4) is fixed at one end on the steel wire rope suspension frame (1) and at the other end on the adjusting inner frame (2); The adjusting device (3) is used for adjusting the position of the adjusting inner frame (2) in the steel wire rope suspension frame (1), and a distance is left between the adjusting inner frame (2) and the steel wire rope suspension frame (1); The adjusting device (3) comprises two clamping plates (3.1), the middle part of the clamping plate (3.1) is provided with an inner frame connecting plate (3.6), the inner frame connecting plate (3.6) is connected with the adjusting inner frame (2), and a gap is left between the inner frame connecting plate (3.6) and the steel wire rope suspension frame (1); the two ends of the clamping plate (3.1) are provided with shaft holes (3.8), two connecting shafts (3.2) parallel to each other are jointly installed on the two clamping plates (3.1), the two ends of the connecting shaft (3.2) are respectively installed in the shaft holes (3.8) on the two clamping plates (3.1), and the two ends of the connecting shaft (3.2) are provided with adjusting nuts (3.5).

2. The tension adjustment device for a steel wire rope suspension according to claim 1, characterized in that: The connecting shaft (3.2) is provided with two rolling elements (3.3), and the rolling elements (3.3) are attached to the steel wire rope suspension frame (1).

3. The tension adjustment device for a steel wire rope suspension according to claim 2, characterized in that: The rolling element (3.3) is a rolling wheel or a bearing.

4. The tension adjustment device for a steel wire rope suspension according to claim 3, characterized in that: The rolling element (3.3) is a rolling wheel with an outer edge, and the outer edge of the rolling wheel is located on the outer side of the steel wire rope suspension frame (1).

5. The tension adjustment device for a steel wire rope suspension according to claim 4, characterized in that: The rolling wheel is provided with a needle bearing.

6. The tension adjustment device for a steel wire rope suspension according to claim 4, characterized in that: The inner frame connecting plates (3.6) on each clamping plate (3.1) are provided as two, and the two inner frame connecting plates (3.6) are arranged in parallel; the spacing between the two inner frame connecting plates (3.6) on the same clamping plate (3.1) is not less than the thickness of the adjusting inner frame (2).

7. The tension adjustment device for a steel wire rope suspension according to claim 6, characterized in that: Each clamping plate (3.1) is provided with a fixing bolt (3.4) threaded thereon, and the fixing bolt (3.4) abuts against the adjusting inner frame (2).

8. A tension adjustment device for a wire rope suspension according to any one of claims 1-7, characterized in that: The connecting shaft (3.2) can move in the radial direction of the connecting shaft (3.2) in the shaft hole (3.8), and the end of the clamping plate (3.1) is provided with an adjusting bolt (3.7) threaded thereon, and the adjusting bolt (3.7) abuts against the connecting shaft (3.2).

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