Pressure-equalizing combined rope clamp device and lifting equipment with same

Abstract

The invention discloses a pressure-equalizing combined rope clamp device and lifting equipment with the same, and belongs to the field of lifting equipment. The pressure-equalizing combined rope clamp device comprises a plurality of groups of plate-shaped rope clamps which are arranged side by side, every two plate-shaped rope clamps form a group, a through hole is formed in the corresponding position of each plate-shaped rope clamp, and a semicircular rope groove extending in the vertical direction is formed in the corresponding position of the contact surface of each group of plate-shaped rope clamps. The equipment comprises a set of elevator traction wheels, the elevator traction wheels are sleeved with elevator traction ropes, and one end of each elevator traction rope is connected with an elevator car; the elevator steel platform is fixedly arranged and can allow the elevator hoisting rope to penetrate through, the pressure-equalizing combined rope clamping device is arranged on the elevator steel platform, and the other end of the elevator hoisting rope penetrates through the semicircular rope groove of the pressure-equalizing combined rope clamping device. The elevator hoisting rope locking device can overcome the defects that an original elevator hoisting rope is prone to sliding during rope locking and the clamping force of a single hoisting rope is difficult to adjust, and adjustment and replacement work of the underground elevator hoisting rope is facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of lifting equipment, and more specifically, relates to a pressure-equalizing combined rope clamp device and a lifting equipment having the same. Background Art

[0002] Underground elevator transportation has been widely used in the field of underground mining. In the complex working environment underground, it can quickly and comfortably transport workers to various working levels. Compared with traditional inclined shaft man-car and other methods, it can greatly shorten the time for workers to go up and down the well and reduce physical exertion. However, during the use of underground elevators, there are operations that are restricted by space and environment, such as the elongation of the traction rope, the adjustment of the force state of the traction rope, and the replacement of the traction rope. Therefore, during operation, two ordinary steel plates are usually used to clamp the traction rope, and the fastening bolts are passed through the narrow gap between the steel wire ropes to lock the two steel plates to lock the traction rope, and then the tightness of the other side of the traction rope is adjusted to achieve rope adjustment or rope head replacement operations.

[0003] However, this method has the following disadvantages: (1) The traction rope is clamped by a steel plate. The contact area between the steel plate and the traction rope is small, and the friction is insufficient, which can easily cause the traction rope to slip; (2) The traction rope is subjected to a large force when it is clamped, and some traction ropes are subjected to uneven force, which can easily lead to individual traction ropes not being locked, causing a single traction rope to slip; (3) After repeated use, the surface of the clamping steel plate will be deformed, resulting in uneven force, and the safety of the rope cannot be guaranteed; (4) The number of bolts used for fastening is large, which is troublesome to use. In addition, due to the small rope spacing, only small bolts can be used for fastening. The bolts have a small tightening force and may break if over-tightened.

[0004] The Chinese patent application number is CN200720027663.8, and the publication date is August 27, 2008. The patent document discloses a special board for steel wire rope, which includes a fixing bolt, a block, a holder, a right card plate, a left card plate and a connecting bolt. The holders of the left card plate and the right card plate are both provided with fixing bolt screw holes and connecting bolt screw holes. The blocks are connected and arranged in the fixing bolt screw holes through the fixing bolts. The upper surfaces of the blocks are all in the form of concave, and the blocks screw holes are arranged on both sides of the concave surface of the blocks. The number of blocks on the left card plate and the right card plate can be set as needed, and the blocks on the left card plate and the right card plate are arranged correspondingly. The connecting bolt is arranged in the block screw hole of the corresponding block and the connecting bolt screw hole on the holder, so that the left card plate and the right card plate are connected as a whole. The distance between the blocks on the holder can be adjusted to meet the rope distance requirements between the lifting wire ropes. The clamping block can be disassembled and assembled on the clamping seat, and the size of the clamping block can be selected and replaced according to the diameter of the lifting wire rope.

[0005] The Chinese patent application number is CN201810974050.8, and the publication date is December 11, 2018. The patent document discloses a steel wire rope buckle structure for an automobile window lifter, including steel wire ropes arranged on a guide rail, the number of the steel wire ropes is two, and the steel wire ropes are cross-arranged in the middle, and a buckle is arranged at the intersection of the steel wire ropes, and the buckle includes a clamping clip and a limit fixing strip, the number of the clamping clips is two, and the two clamping clips are connected by the limit fixing strip. The two steel wire ropes are fixed together by clamping the clamping clip on one steel wire rope and passing another steel wire rope between the limit fixing strip and the first steel wire rope.

[0006] The above two solutions are devices for locking the steel wire rope by two steel plates. When they are used for clamping the elevator traction rope, they will have the above-mentioned disadvantages, causing safety hazards. Summary of the invention

[0007] 1. Problems to be solved

[0008] In view of the problem that in the prior art, two steel plates are clamped to clamp the traction rope by fastening bolts, which not only causes uneven locking pressure of each traction rope during locking, but also the locking force of a single traction rope cannot be adjusted, and the clamping steel plates are prone to surface wear after long-term use, resulting in different forces on each traction rope after the traction rope is locked, which brings many unfavorable factors to the rope adjustment operation. The present invention provides a pressure-equalizing combined rope clamping device and a lifting equipment with the device, which can solve the shortcomings of the original elevator traction rope being easy to slip when locking the rope and the difficulty in adjusting the clamping force of a single traction rope, and is beneficial to the adjustment and replacement of the traction rope of the underground elevator.

[0009] 2. Technical solution

[0010] To solve the above problems, the present invention adopts the following technical solutions.

[0011] A pressure-equalizing combined rope clamp device, comprising a plurality of sets of plate-shaped rope clamps arranged side by side, two in a set, each of the plate-shaped rope clamps having a through hole at a corresponding position, and a semicircular rope groove extending vertically at a corresponding position on the contacting surface of each set of plate-shaped rope clamps;

[0012] When the rope clamp device clamps the traction rope, the traction rope is in the semicircular rope groove of each set of plate-shaped rope clamps, and all the plate-shaped rope clamps are locked together by bolts passing through the through holes of each plate-shaped rope clamp.

[0013] As a further improvement of the technical solution, the plate-like rope clamp has four through holes which are evenly spaced on the end surface of the plate-like rope clamp.

[0014] As a further improvement of the technical solution, the width of the plate-shaped rope clamp is not less than 80 mm.

[0015] As a further improvement of the technical solution, the thickness of the plate-shaped rope clamp is not less than 20 mm.

[0016] As a further improvement of the technical solution, when all the plate-like rope clamps are locked together, the gaps between the same group of plate-like rope clamps are ≥3mm.

[0017] As a further improvement of the technical solution, the bolts are high-strength bolts.

[0018] A lifting device comprises a group of elevator traction wheels, on which elevator traction ropes are sleeved, one end of which is connected to an elevator car; the lifting device also comprises a fixed elevator steel platform through which the elevator traction ropes can pass, the elevator steel platform is provided with the above-mentioned pressure-equalizing combined rope clamping device, and the other end of the elevator traction rope passes through the semicircular rope groove of the pressure-equalizing combined rope clamping device.

[0019] As a further improvement of the technical solution, two fixed I-beams are fixedly installed on the elevator steel platform, and there is a gap between the two fixed I-beams for the elevator traction rope to pass through, and the pressure-equalizing combined rope clamp device is supported and arranged on the fixed I-beams.

[0020] As a further improvement of the technical solution, the upper end surface of the fixed I-beam is provided with a limiting sliding groove for placing a pressure-equalizing combined rope clamp device.

[0021] As a further improvement of the technical solution, an elevator counterweight is connected to the other end of the elevator traction rope relative to the elevator car.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention provides a pressure-equalizing combined rope clamp device, which is composed of a plurality of plate-shaped rope clamps arranged side by side, each of which is a group of two. The two semicircular rope grooves of each group of plate-shaped rope clamps can form a complete circular rope groove for clamping the elevator traction rope. Each group of plate-shaped rope clamps clamps each traction rope separately, which can ensure a sufficiently stable clamping force for the traction rope. At the same time, this method can conveniently adjust the number of plate-shaped rope clamps and the size of the rope grooves according to the actual number and size of the traction ropes, which is convenient for actual use at the production site. In addition, although a plurality of plate-shaped rope clamps are used, all the plate-shaped rope clamps can be clamped at one time by a single bolt passing through the holes of all the plate-shaped rope clamps, which is convenient to use.

[0025] (2) The present invention provides a pressure-equalizing combined rope clamp device, wherein the plate-shaped rope clamp has four through holes which are evenly spaced and distributed on the end surface of the plate-shaped rope clamp. When the clamping force of the traction rope is adjusted by the bolt, the four-hole structure can ensure that the surface of each rope clamp is subjected to uniform force, reduce the deformation of the rope clamp, increase the service life of the rope clamp and ensure the clamping effect;

[0026] (3) The lifting device of the present invention can first remove the fixed I-beam, and then be installed on the elevator steel platform when in use, and can be fixed by bolt connection or welding. The entire installation process is simple, which can greatly improve the on-site installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the lifting device of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of components of the pressure-equalizing combined rope clamp device of the present invention;

[0029] Figure 3 It is a schematic diagram of the installation structure of the pressure-equalizing combined rope clamp device of the present invention;

[0030] In the figure: 1. elevator traction wheel; 2. elevator traction rope; 3. pressure-equalizing combined rope clamp device; 31. plate-shaped rope clamp; 32. through hole; 33. semicircular rope groove; 4. elevator steel platform; 5. fixed I-beam; 6. elevator car; 7. elevator counterweight. DETAILED DESCRIPTION

[0031] Exemplary embodiments of the present invention are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from the spirit and scope of the present invention. The more detailed description of the embodiments of the present invention below is not intended to limit the scope of the claimed invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, in order to propose the best mode for performing the present invention, and is sufficient to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0032] Example 1

[0033] like Figure 2 and Figure 3As shown, a pressure-equalizing combined rope clamp device includes a plurality of groups of plate-shaped rope clamps 31 arranged side by side, two in a group, a through hole 32 is provided at a corresponding position of each plate-shaped rope clamp 31, and a semicircular rope groove 33 extending vertically is provided at a corresponding position on the contacting surface of each group of plate-shaped rope clamps 31. When the rope clamp device clamps the traction rope, the traction rope is in the semicircular rope groove 33 of each group of plate-shaped rope clamps 31, and all the plate-shaped rope clamps 31 are locked together by bolts passing through the through holes of each plate-shaped rope clamp 31. The plate-shaped rope clamps 31 at both ends are the main force-bearing plates, which bear the pressure and bending stress after the bolts are tightened, and also bear the static friction force after the traction rope is clamped. The plate-shaped rope clamp 31 in the middle mainly bears the pressure after the traction rope is clamped and the static friction force between the traction rope and the traction rope.

[0034] The device is composed of multiple sets of plate-shaped rope clamps 31 arranged side by side, with two as a group. The two semicircular rope grooves 33 of each set of plate-shaped rope clamps 31 can form a complete circular rope groove for clamping the elevator traction rope 2. Each set of plate-shaped rope clamps 31 clamps each traction rope separately, which can ensure a sufficiently stable clamping force for the traction rope. At the same time, this method can easily adjust the number of plate-shaped rope clamps 31 and the size of the rope groove according to the actual number and size of traction ropes, which is convenient for actual use at the production site. In addition, although multiple plate-shaped rope clamps are used, all plate-shaped rope clamps 31 can be clamped at one time by a single bolt passing through the through holes 32 of all plate-shaped rope clamps 31, which is convenient to use.

[0035] In this embodiment, the plate-shaped rope clamp 31 has four through holes 32, which are evenly spaced on the end surface of the plate-shaped rope clamp 31. When the clamping force of the traction rope is adjusted by bolts, this four-hole structure can ensure that the surface force of each rope clamp is uniform, reduce the deformation of the rope clamp, increase the service life of the rope clamp and ensure the clamping effect. The width of the plate-shaped rope clamp 31 is not less than 80mm, and the thickness is not less than 20mm. When all the plate-shaped rope clamps 31 are locked together, the gap between the same group of plate-shaped rope clamps 31 is ≥3mm, and the bolts are high-strength bolts.

[0036] Example 2

[0037] like Figure 1 As shown, a lifting device includes a set of elevator traction sheaves 1, on which elevator traction ropes 2 are sleeved, one end of which is connected to an elevator car 6, and the other end of which is connected to an elevator counterweight 7. In addition, it also includes a fixed elevator steel platform 4 through which the elevator traction ropes 2 can pass, and the elevator steel platform 4 is provided with a pressure-equalizing combined rope clamp device 3 of Example 1, and the other end of the elevator traction rope 2 passes through a semicircular rope groove 33 of the pressure-equalizing combined rope clamp device 3.

[0038] Two fixed I-beams 5 are fixedly installed on the elevator steel platform 4. There is a gap between the two fixed I-beams 5 for the elevator traction rope 2 to pass through. The pressure-equalizing combined rope clamp device 3 is supported and arranged on the fixed I-beam 5. Before installation, the fixed I-beam can be removed first, and then installed on the elevator steel platform 4 when in use. It can be fixed by bolt connection or welding. The whole installation step is simple, which can greatly improve the on-site installation efficiency. The upper end surface of the fixed I-beam 5 is provided with a limiting slide groove for placing the pressure-equalizing combined rope clamp device 3. When the plate-shaped rope clamp 31 is locked, the limiting slide groove can limit the displacement of the plate-shaped rope clamp 31 in the width direction to ensure the clamping degree of the elevator traction rope 2.

[0039] The examples described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should all fall within the protection scope of the present invention.

Claims

1. A pressure-equalizing combined rope clamp device, characterized in that: It comprises a plurality of groups of plate-shaped rope clamps (31) arranged side by side, two of which form a group, each of which is provided with a through hole (32) at a corresponding position, and a semicircular rope groove (33) extending vertically is provided at a corresponding position on the contacting surface of each group of plate-shaped rope clamps (31); When the rope clamp device clamps the traction rope, the traction rope is in the semicircular rope groove (33) of each group of plate-shaped rope clamps (31), and all the plate-shaped rope clamps (31) are locked together by bolts passing through the through holes of each plate-shaped rope clamp (31).

2. A pressure-equalizing combined rope clamp device according to claim 1, characterized in that: The plate-shaped rope clamp (31) has four through holes (32) which are evenly spaced and distributed on the end surface of the plate-shaped rope clamp (31).

3. The pressure-equalizing combined rope clamp device according to claim 1, characterized in that: The width of the plate-shaped rope clamp (31) is not less than 80 mm.

4. A pressure-equalizing combined rope clamp device according to claim 3, characterized in that: The thickness of the plate-shaped rope clamp (31) is not less than 20 mm.

5. The pressure-equalizing combined rope clamp device according to claim 1, characterized in that: When all the plate-shaped rope clamps (31) are locked together, the gaps between the same group of plate-shaped rope clamps (31) are ≥3 mm.

6. A pressure-equalizing combined rope clamp device according to any one of claims 1 to 5, characterized in that: The bolts are high-strength bolts.

7. A lifting device, comprising a set of elevator traction sheaves (1), wherein an elevator traction rope (2) is sleeved on the elevator traction sheave (1), wherein one end of the elevator traction rope (2) is connected to an elevator car (6), characterized in that: It also includes a fixed elevator steel platform (4) capable of allowing the elevator traction rope (2) to pass through, and the elevator steel platform (4) is provided with a pressure-equalizing combined rope clamping device (3) as described in any one of claims 1 to 6, and the other end of the elevator traction rope (2) passes through the semicircular rope groove (33) of the pressure-equalizing combined rope clamping device (3).

8. A lifting device according to claim 7, characterized in that: Two fixed I-beams (5) are fixedly installed on the elevator steel platform (4), and a gap is provided between the two fixed I-beams (5) for the elevator traction rope (2) to pass through, and the pressure-equalizing combined rope clamp device (3) is supported and arranged on the fixed I-beams (5).

9. A lifting device according to claim 8, characterized in that: The upper end surface of the fixed I-beam (5) is provided with a limiting sliding groove for placing the pressure-equalizing combined rope clamp device (3).

10. A lifting device according to claim 7, characterized in that: The other end of the elevator traction rope (2) relative to the elevator car (6) is connected to an elevator counterweight (7).

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