Tension adjusting device for hanging steel wire rope

Abstract

The tensioning adjusting device comprises a steel wire rope hanging frame and an adjusting inner frame moving relative to the steel wire rope hanging frame, and the outer side of the steel wire rope hanging frame is sleeved with an adjusting device used for adjusting the position of the adjusting inner frame in 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] The invention relates to a tensioning and adjusting device for steel wire rope suspension, belonging to the technical field of steel wire rope adjusting devices for mines. Background Art

[0002] In the mine friction hoist equipment, a tensioning hydraulic balance suspension device is installed between the cage and the multiple wire ropes of the hoisting cage, and a cage is usually connected with multiple tensioning hydraulic balance suspension devices in series. By connecting each tensioning hydraulic balance device in series to form a connected hydraulic balance device, when the wire rope lifts the cage, different tensioning hydraulic balance devices will realize automatic dynamic adjustment according to the length and tightness of different wire ropes, so that each wire rope can exert force evenly. However, affected by the rotation force of the connected wire rope, the movable adjustment inner frame in the existing tensioning hydraulic balance device will have a large friction force with the frame, resulting in failure of dynamic adjustment, the friction part becomes thinner and thinner, and the wear greatly reduces the safety factor, resulting in safety hazards. Summary of the invention

[0003] The invention aims at solving the deficiencies in the prior art and provides a tensioning and adjusting device for wire rope suspension.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A tensioning and adjusting device for wire rope suspension, comprising a wire rope suspension frame, an adjusting inner frame installed in 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, the adjusting inner frame is a rectangular frame, the adjusting inner frame is clamped between the two rectangular frames of the wire rope suspension frame, and the adjusting inner frame can move within the wire rope suspension frame; the tensioning and adjusting device for wire rope suspension also comprises 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 adjusting device is mounted on the outer side of the wire rope suspension frame, and the adjusting device is used to adjust the position of the adjusting inner frame in the wire rope suspension frame, and a distance is left between the adjusting inner frame and the wire rope suspension frame;

[0007] The adjusting device comprises two clamping plates, an inner frame connecting plate is arranged in the middle of the clamping plates, the inner frame connecting plate is connected to the adjusting inner frame, and a gap is left between the inner frame connecting plate and the wire rope suspension frame; axial holes are arranged at both ends of the clamping plates, and two connecting shafts parallel to each other are installed on the two clamping plates, the two ends of the connecting shafts are installed in the axial holes on the clamping plates, and 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 through the clamping plate, which can be set at the end of the adjusting inner frame or at other positions. The two clamping plates and the 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 part of the wire rope suspension frame, so that the adjusting inner frame does not have sliding friction with the wire rope suspension frame, thereby increasing the service life of the adjusting frame and the wire rope suspension frame.

[0009] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the present invention can also make the following improvements to the above technical solution:

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

[0011] By adopting the above technical solution, the sliding friction between the existing adjusting inner 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 achieving the effect of increasing the service life of the adjusting 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 scheme, the sliding friction between the existing adjusting inner 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 achieving the effect of increasing the service life of the adjusting frame and the wire rope suspension frame; and, when tightening the adjusting nut, since the outer edge of the rolling wheel is located on the outside of the wire rope suspension frame, the outer edge of the rolling wheel will push the wire rope suspension frame to the middle of the connecting shaft, and finally a certain distance will exist between the wire rope suspension frame and the adjusting inner frame and the splint.

[0015] Furthermore, a needle bearing is provided in the rolling wheel.

[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, so a difference of 2-3mm can be achieved between the sleeve and the connecting shaft, thereby achieving a larger diameter of the connecting shaft to ensure strength.

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

[0018] Furthermore, each clamping plate is threadedly connected with a fixing bolt, and the fixing bolt abuts against the adjusting inner frame.

[0019] By adopting the above technical solution, when adjusting the position of the adjusting inner frame in the wire rope suspension frame, after tightening the adjusting nut, the position of the adjusting inner frame inside the wire rope suspension frame along the axial direction (defined as the transverse direction) of the connecting axis can be adjusted by adjusting the fixing bolts on both sides of the adjusting inner frame on the clamping plate; when the fixing bolts abut against the adjusting inner frame, the clamping plate and the inner frame connecting plate can be fixed on the adjusting inner frame.

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

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

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

[0023] (1) The two clamping plates and two connecting shafts in the present invention form the frame of the adjusting device, which plays a supporting role. The inner frame connecting plate is connected to the adjusting inner frame. The position between the adjusting inner frame and the wire rope suspension frame is controlled by the adjusting device, so that the original sliding friction between the adjusting inner frame and the wire rope suspension frame is changed to the rolling friction between the rolling wheel on the adjusting device and the wire rope suspension frame, thereby avoiding the sliding friction between the adjusting inner frame and the wire rope suspension frame, and indefinitely increasing the service life of the adjusting inner frame and the wire rope suspension frame;

[0024] (2) In the present invention, the rolling wheel with an outer edge contacts one side of the wire rope suspension frame, and the outer edge of the rolling wheel blocks the outside of the wire rope suspension frame, so that the adjustment inner frame can be adjusted to be centered in the horizontal position in the wire rope suspension frame by adjusting the adjusting nuts and fixing bolts at both ends, and the adjustment inner frame can be adjusted to be centered in the vertical position in the wire rope suspension frame by adjusting the adjusting bolts on both sides, so that the adjustment inner frame is always in the middle position in the vertical and horizontal directions in the wire rope suspension frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the installation structure of the wire rope suspension frame, the adjustment inner frame and the hydraulic cylinder;

[0026] Figure 2It is a schematic diagram of the installation structure of the wire rope suspension frame, the adjustment inner frame and the adjustment device of the wire rope suspension tension adjustment device of the present invention;

[0027] Figure 3 A top view of the installation structure of the wire rope suspension frame, the adjustment inner frame and the adjustment device of the wire rope suspension tension adjustment device of the present invention;

[0028] Figure 4 for Figure 3 Sectional view along line AA;

[0029] Figure 5 for Figure 3 Sectional view along line BB.

[0030] Explanation of the accompanying drawings: 1. Wire rope suspension frame; 2. Adjusting inner frame; 3. Adjusting device; 4. Hydraulic cylinder; 3.1. Clamp; 3.2. Connecting shaft; 3.3. Rolling member; 3.4. Fixing bolt; 3.5. Adjusting nut; 3.6. Inner frame connecting plate; 3.7. Adjusting bolt; 3.8. Shaft hole. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] The embodiment of the invention discloses a tensioning and adjusting device for steel wire rope suspension.

[0033] Reference Figures 1-5 A tension adjustment device for wire rope suspension includes a wire rope suspension frame 1, and an adjustment inner frame 2 installed in 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 adjustment inner frame 2 is a rectangular frame. The adjustment inner frame 2 is sandwiched between the two rectangular frames of the wire rope suspension frame 1, and the adjustment inner frame 2 can move in the wire rope suspension frame 1.

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

[0035] An adjusting device 3 is mounted on the outer side of the wire rope suspension frame 1 , and the adjusting device 3 is used to adjust the position of the adjusting inner frame 2 in the wire rope suspension frame 1 , and a distance is left between the adjusting inner frame 2 and the wire rope suspension frame 1 .

[0036] The adjustment device 3 includes two clamping plates 3.1, and an inner frame connecting plate 3.6 is provided in the middle of the clamping plates 3.1. The inner frame connecting plate 3.6 is connected to the adjustment inner frame 2. A gap is left between the inner frame connecting plate 3.6 and the wire rope suspension frame 1. Specifically, the gap between the two can be about 1 cm. Axial holes 3.8 are provided at both ends of the clamping plates 3.1. Two parallel connecting shafts 3.2 are installed on the two clamping plates 3.1. The two ends of the connecting shaft 3.2 are respectively installed in the axial holes 3.8 on the two clamping plates 3.1. The cross-section of the axial hole 3.8 along the radial direction of the connecting shaft 3.2 is oval, and can also be rectangular, and the length of the axial hole 3.8 is greater than the diameter of the connecting shaft 3.2, so that the connecting shaft 3.2 can move in the axial hole 3.8 along the radial direction of the connecting shaft 3.2.

[0037] The end of the clamping plate 3.1 is threadedly connected with an adjusting bolt 3.7, the adjusting bolt 3.7 abuts against the connecting shaft 3.2, and 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 in the wire rope suspension frame 1, by adjusting the adjusting bolt 3.7, the position of the adjusting inner frame 2 in the wire rope suspension frame 1 along the radial direction (defined as the longitudinal direction) of the connecting shaft 3.2 can be adjusted, and the adjustment of the adjusting inner frame 2 in the longitudinal position in the wire rope suspension frame 1 can be centered.

[0038] Furthermore, two rolling members 3.3 are mounted on the connecting shaft 3.2, and the rolling members 3.3 are fitted with the wire rope suspension frame 1. The rolling members 3.3 are rolling wheels or bearings, and specifically, the rolling members 3.3 are rolling wheels with outer edges, the outer edges of the rolling wheels are located outside the wire rope suspension frame 1, and needle bearings are arranged inside the rolling wheels.

[0039] The two ends of the connecting shaft 3.2 are threadedly connected with adjusting nuts 3.5, and the installation position of the adjusting nuts 3.5 on the connecting shaft 3.2 is adjusted according to the width of the adjusting 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 to move toward the middle of the connecting shaft 3.2, and finally a certain distance is between the wire rope suspension frame 1 and the adjusting inner frame 2 and the clamping plate 3.1.

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

[0041] Furthermore, there are two inner frame connecting plates 3.6 on each clamping plate 3.1, 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 adjustable inner frame 2. A fixing bolt 3.4 is threadedly connected to each clamping plate 3.1, and the fixing bolt 3.4 abuts against the adjustable inner frame 2.

[0042] When adjusting the position of the adjusting inner frame 2 in the wire rope suspension frame 1, tighten the adjusting nut 3.5, and then adjust the installation position of the fixing bolts 3.4 on both sides of the adjusting inner frame 2 on the clamping plate 3.1, so as to adjust the position of the adjusting inner frame 2 in the axial direction (defined as the transverse direction) of the connecting shaft 3.2 inside the wire rope suspension frame 1, and adjust the adjustment of the adjusting inner frame 2 in the transverse position in the wire rope suspension frame 1 to the center, so that the adjusting inner frame 2 is always in the middle position of the longitudinal and transverse directions of the wire rope suspension frame 1. Specifically, by abutting the fixing bolts 3.4 on the adjusting inner frame 2, the clamping plate 3.1 and the inner frame connecting plate 3.6 can be fixed on the adjusting 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, which 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 limits the adjusting inner frame 2 to the middle part of the wire rope suspension frame 1, so that the adjusting inner frame 2 does not have sliding friction with 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 a tension adjustment device for wire rope suspension of the embodiment of the present invention is as follows: when adjusting the position of the adjustment inner frame 2 in the wire rope suspension frame 1, the adjustment nuts 3.5 and the fixing bolts 3.4 at both ends are adjusted to adjust the adjustment inner frame 2 in the horizontal position in the wire rope suspension frame 1 to be centered, and then the adjustment bolts 3.7 at both sides are adjusted to adjust the adjustment inner frame 2 in the longitudinal position in the wire rope suspension frame 1 to be centered, and then the adjustment inner frame 2 is always in the longitudinal and lateral middle position in the wire rope suspension frame 1. By controlling the position between the adjustment inner frame 2 and the wire rope suspension frame 1, the original sliding friction between the adjustment inner frame 2 and the wire rope suspension frame 1 is changed to the rolling friction between the rolling wheel on the adjustment device 3 and the wire rope suspension frame 1, thereby avoiding the sliding friction between the adjustment inner frame 2 and the wire rope suspension frame 1, and indefinitely increasing the service life of the adjustment inner frame 2 and the wire rope suspension frame 1.

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

Claims

1. A tensioning and adjusting device for a wire rope suspension, comprising a wire rope suspension frame (1), characterized in that: It also includes an adjusting inner frame (2) installed in the wire rope suspension frame (1) and moving relative to the wire rope suspension frame (1), and a hydraulic cylinder (4) with one end fixed to the wire rope suspension frame (1) and the other end fixed to the adjusting inner frame (2); An adjusting device (3) is mounted on the outer side of the wire rope suspension frame (1), and the adjusting device (3) is used to adjust the position of the adjusting inner frame (2) in the wire rope suspension frame (1), and a distance is left between the adjusting inner frame (2) and the wire rope suspension frame (1); The adjustment device (3) comprises two clamping plates (3.1), an inner frame connecting plate (3.6) is arranged in the middle of the clamping plates (3.1), the inner frame connecting plate (3.6) is connected to the adjustment inner frame (2), and a gap is left between the inner frame connecting plate (3.6) and the wire rope suspension frame (1); shaft holes (3.8) are arranged at both ends of the clamping plates (3.1), two parallel connecting shafts (3.2) are 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 installed with adjustment nuts (3.5).

2. The tensioning and adjusting device for wire rope suspension according to claim 1, characterized in that: Two rolling elements (3.3) are mounted on the connecting shaft (3.2), and the rolling elements (3.3) are fitted to the wire rope suspension frame (1).

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

4. The tensioning and adjusting device for wire rope suspension according to claim 3 is 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 outside the wire rope suspension frame (1).

5. The tensioning and adjusting device for wire rope suspension according to claim 4, characterized in that: A needle bearing is arranged inside the rolling wheel.

6. The tensioning and adjusting device for wire rope suspension according to claim 4, characterized in that: There are two inner frame connecting plates (3.6) on each clamping plate (3.1), 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).

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

8. The tensioning and adjusting device for wire rope suspension according to any one of claims 1 to 7, characterized in that: The connecting shaft (3.2) can move in the shaft hole (3.8) along the radial direction of the connecting shaft (3.2); the end of the clamping plate (3.1) is threadedly connected with an adjusting bolt (3.7), and the adjusting bolt (3.7) abuts against the connecting shaft (3.2).

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