Elevator steel wire rope fusing device

Abstract

The present invention relates to the technical field of wire rope fusing, and particularly to an elevator wire rope fusing device, which specifically includes a rotating clamping mechanism and a stretching clamping mechanism. The rotating clamping mechanism includes a rotating bracket arranged vertically and rotating around the horizontal axis. The stretching clamping mechanism includes a fixed bracket vertically spaced on one side of the rotating bracket, and the fixed bracket can reciprocate relative to the rotating bracket. A wire rope through-hole is respectively formed at the center of the rotating bracket and on the fixed bracket. Clamping head assemblies are respectively arranged on the rotating bracket and the fixed bracket. The clamping head assembly includes clamping head blocks located on both sides of the wire rope, and the clamping head blocks are used to clamp the wire rope and introduce fusing current into the wire rope. The above elevator wire rope fusing device realizes the automation of the elevator wire rope fusing process. Through the cooperation of rotation and stretching actions, the fusing effect is guaranteed, the fusing speed and production efficiency are improved, the influence of human factors in the production process is eliminated, and the labor intensity of the operator is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wire rope fusing, and particularly to an elevator wire rope fusing device. Background Art

[0002] Currently, each elevator manufacturing enterprise requires the wire rope manufacturer to cut the elevator wire ropes to the specified lengths according to the height designed for the elevator floors. During the cutting process of the elevator wire ropes, the wire rope ends are processed by rotary fusing so that the fused ends are conical, which is convenient for the installation of the elevator wire ropes. For the elevator wire rope fusing chuck, basically a positive and negative thread screw rod is used, and the chuck is clamped or loosened by manually rotating the screw rod. During fusing, the fusing head also needs to be continuously rotated to gradually stretch the already red-hot elevator wire rope, so that the fused elevator wire rope end is conical.

[0003] After long-term production inspection, this fixture has several disadvantages, specifically manifested as follows: 1) When the operator loosens the chuck, the opening distance of the chuck is random. During the operation of the cutting equipment, the elevator wire rope is likely to rub against the chuck. Since the material of the chuck is copper and its texture is relatively soft, often a pair of chucks are worn out by the wire rope in less than a month, and the situation of not being able to clamp the wire rope tightly occurs during fusing; 2) The clamping and loosening of the fusing chuck entirely depend on manually rotating the screw rod by the operator, and the tightness of the wire rope after clamping is inconsistent. If it is too loose, it will cause the wire rope to spark with the chuck during the fusing process, accelerating the wear of the fusing chuck; 3) During the fusing process, the operator not only needs to continuously step on the foot switch to control the on-off frequency of the power supply of the fusing transformer to control the fusing situation of the wire rope, but also needs to continuously rotate the fusing head to stretch according to the heat. If the heat and stretching speed are not well controlled, the fused wire rope end does not meet the requirements; 4) During the entire fusing process, all operations are completed manually by the operator, with high labor intensity, slow speed, and high requirements for the technical quality of the workers. Summary of the Invention

[0004] The purpose of the present invention is to provide an elevator wire rope fusing device to solve problems such as short service life of the fusing chuck and difficult manual operation during the production process, and to improve the fusing speed and production efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An elevator wire rope fusing device, which comprises a rotary clamping mechanism and a stretching clamping mechanism. The rotary clamping mechanism includes a rotary bracket arranged vertically and rotating self - axially along the horizontal axis. The stretching clamping mechanism includes a fixed bracket vertically spaced on one side of the rotary bracket, and the fixed bracket can reciprocate translationally relative to the rotary bracket. A wire rope passing hole is respectively formed at the center of the rotary bracket and on the fixed bracket. Clamping head assemblies are respectively arranged on the rotary bracket and the fixed bracket. The clamping head assembly includes clamping head blocks located on both sides of the wire rope, and the clamping head blocks are used to clamp the wire rope and introduce a fusing current into the wire rope.

[0007] Particularly, it further includes a bakelite base plate. A first support seat is arranged on the bakelite base plate. A guide rail and a stretching air cylinder are arranged on the first support seat. A sliding seat driven by the stretching air cylinder is slidably arranged on the guide rail, and the fixed bracket is installed on the sliding seat.

[0008] Particularly, a second support seat is arranged on the bakelite base plate. A hollow shaft is rotatably arranged on the second support seat. The wire rope passes through the hollow shaft. One end of the hollow shaft is assembled and connected with the rotary bracket, and a rotary sprocket is arranged at the other end. A DC reduction motor is arranged on the bakelite base plate, and the output end of the DC reduction motor is in transmission connection with the rotary sprocket through a chain.

[0009] Particularly, a sliding copper base plate is arranged on one side of the second support seat close to the rotary bracket. A power supply braided lead wire is arranged on the sliding copper base plate. An alloy carbon brush in frictional fit with the sliding copper base plate is arranged on the rotary bracket. A carbon brush braided lead wire is arranged on the alloy carbon brush. A first clamping head braided lead wire is arranged on the clamping head block of the fixed bracket. The first clamping head braided lead wire and the power supply braided lead wire are respectively connected with a fusing transformer. A second clamping head braided lead wire is arranged on the clamping head block of the rotary bracket, and the second clamping head braided lead wire is connected with the carbon brush braided lead wire. The fusing current is set through the fusing transformer.

[0010] Particularly, the sliding copper base plate is fixed on the second support seat through a tensioning adjustment screw, and a tensioning spring is arranged between the sliding copper base plate and the second support seat.

[0011] Particularly, clamping air cylinders for driving the clamping head blocks are respectively arranged on the fixed bracket and the rotary bracket. The clamping air cylinder of the fixed bracket is externally connected to a gas source. A pneumatic slip ring is arranged at the shaft end of the hollow shaft. The fixed part of the pneumatic slip ring is fixed on the bakelite base plate through a third support seat, and an air inlet pipe is arranged on the fixed part. The rotary part of the pneumatic slip ring is in pipeline communication with the clamping air cylinder of the rotary bracket.

[0012] Particularly, the end of the clamping head block is set in a concave - convex tooth shape.

[0013] In summary, the beneficial effects of the present invention are as follows. Compared with the prior art, the elevator wire rope fusing device realizes the automation of the elevator wire rope fusing process. Through the cooperation of rotation and stretching actions, the fusing effect is ensured, the fusing speed and production efficiency are improved, the influence of human factors in the production process is eliminated, and the labor intensity of the operator is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the elevator wire rope fusing device provided by an embodiment of the present invention;

[0015] Figure 2 is a schematic diagram of the wire rope fusing effect provided by an embodiment of the present invention.

[0016] In the figure:

[0017] 1 - bakelite base plate; 2 - rotating bracket; 3 - fixed bracket; 4 - first support seat; 5 - guide rail; 6 - stretching cylinder; 7 - sliding seat; 8 - second support seat; 9 - hollow shaft; 10 - rotating sprocket; 11 - DC reduction motor; 12 - sliding copper base plate; 13 - tension adjustment screw; 14 - tension spring; 15 - wire rope through hole; 16 - chuck block; 17 - power supply braided lead; 18 - alloy carbon brush; 19 - carbon brush braided lead; 20 - first chuck braided lead; 21 - second chuck braided lead; 22 - clamping cylinder; 23 - pneumatic slip ring; 24 - third support seat; 25 - air inlet pipe; 26 - wire rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar components or components with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, or an indirect connection through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the description of the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, and may also include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. The technical solution of the present invention will be further explained below with reference to the accompanying drawings and through specific embodiments.

[0021] See also Figure 1 As shown, this preferred embodiment provides an elevator wire rope fusing device, which specifically includes a bakelite base plate 1 and a rotating clamping mechanism and a stretching clamping mechanism installed on the bakelite base plate 1.

[0022] The rotating clamping mechanism includes a rotating bracket 2 arranged vertically and rotating along a horizontal axis, and the stretching clamping mechanism includes a fixed bracket 3 erected at one side of the rotating bracket 2 at intervals, and the fixed bracket 3 can reciprocate relative to the rotating bracket 2.

[0023] A first support seat 4 is provided on the bakelite base plate 1, a guide rail 5 and a stretching cylinder 6 are provided on the first support seat 4, a slide seat 7 driven by the stretching cylinder 6 is slidably provided on the guide rail 5, and the fixed bracket 3 is installed on the slide seat 7 to realize the pulling action.

[0024] A second support seat 8 is provided on the bakelite base plate 1, and a hollow shaft 9 is provided on the second support seat 8 for rotation through a bearing. The wire rope 26 passes through the hollow shaft 9. One end of the hollow shaft 9 is assembled and connected to the rotating bracket 2, and the other end is provided with a rotating sprocket 10. A DC reduction motor 11 is provided on the bakelite base plate 1, and the output end of the DC reduction motor 11 is connected to the rotating sprocket 10 through a chain, thereby realizing the rotation action.

[0025] A sliding copper base plate 12 is provided on the side of the second support seat 8 close to the rotating bracket 2. Specifically, the sliding copper base plate 12 is fixed to the second support seat 8 by a tensioning adjustment screw 13, and a tensioning spring 14 is provided between the sliding copper base plate 12 and the second support seat 8.

[0026] A wire rope passage hole 15 is respectively opened on the center of the rotating bracket 2 and the fixed bracket 3. A clamping assembly is respectively provided on the rotating bracket 2 and the fixed bracket 3. The clamping assembly includes a clamping block 16 located on both sides of the wire rope 26. The clamping block 16 is used to clamp the wire rope 26 and introduce a fusing current to the wire rope 26.

[0027] A power braided lead wire 17 is arranged on the sliding copper base plate 12, an alloy carbon brush 18 which is in frictional cooperation with the sliding copper base plate 12 is arranged on the rotating bracket 2, a carbon brush braided lead wire 19 is arranged on the alloy carbon brush 18, a first chuck braided lead wire 20 is arranged on the chuck block 16 of the fixed bracket 3, the first chuck braided lead wire 20 and the power braided lead wire 17 are respectively connected to a fusing transformer, a second chuck braided lead wire 21 is arranged on the chuck block 16 of the rotating bracket 2, and the second chuck braided lead wire 21 is connected to the carbon brush braided lead wire 19. The fusing current is set through the fusing transformer.

[0028] Preferably, the end part of the chuck block 16 is arranged in a concave-convex tooth shape to ensure the clamping degree of the steel wire rope 26 and reduce wear.

[0029] Clamping cylinders 22 for driving the chuck block 16 are respectively arranged on the fixed bracket 3 and the rotating bracket 2. The clamping cylinder 22 of the fixed bracket 3 is externally connected to a gas source. In order to supply air to the clamping cylinder 22 on the rotating bracket 2, a pneumatic slip ring 23 is arranged at the shaft end of the hollow shaft 9. The fixed part of the pneumatic slip ring 23 is fixed on the bakelite base plate 1 through a third support seat 24, and an air inlet pipe 25 is arranged on the fixed part. The rotating part of the pneumatic slip ring 23 is in pipeline communication with the clamping cylinder 22 of the rotating bracket 2.

[0030] Each connecting air pipe is controlled by a solenoid valve through a PLC. After starting the fusing program, the chuck blocks 16 on the stretching side and the rotating side respectively automatically clamp the steel wire rope 26 through the clamping cylinders 22; the fusing current is automatically selected according to the thickness of the steel wire rope 26. After the steel wire rope 26 is in a red-hot state, the DC reduction motor 11 starts to work, driving the rotating sprocket 10 and the hollow shaft 9 to rotate; the alloy carbon brush 18 rotates relative to the sliding copper base plate 12, and conducts the current into the chuck block 16 on the rotating side through the carbon brush braided lead wire 19 and the second chuck braided lead wire 21.

[0031] After the number of rotation circles reaches the set number, the stretching cylinder 6 starts to slowly stretch, and the chuck block 16 on the rotating side continues to rotate until the steel wire rope 26 is fused; after the steel wire rope 26 is fused, the chuck blocks 16 on the stretching side and the rotating side automatically open, and the stretching cylinder 6 automatically retracts, completing the entire fusing process. The rope end after the steel wire rope 26 is fused is as Figure 2 shown.

[0032] The loosening distance of the chuck block 16 only needs to ensure that it does not rub against the steel wire rope 26 during the operation of the fusing device. The relevant parameters of the fusing program can be modified and adjusted through the human-machine interface to achieve the best fusing effect.

[0033] In summary, the above elevator steel wire rope fusing device realizes the automation of the elevator steel wire rope fusing process. Through the cooperation of rotation and stretching actions, it ensures the fusing effect, improves the fusing speed and production efficiency, eliminates the influence of human factors in the production process, and reduces the labor intensity of the operator.

[0034] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator wire rope fusing device, characterized in that, It comprises a rotating clamping mechanism, a stretching clamping mechanism and a bakelite base plate, wherein the rotating clamping mechanism comprises a rotating bracket arranged upright and rotating along a horizontal axis, the stretching clamping mechanism comprises a fixed bracket erected at intervals on one side of the rotating bracket, and the fixed bracket can reciprocate relative to the rotating bracket, the center of the rotating bracket and the fixed bracket are respectively provided with a wire rope passage hole, the rotating bracket and the fixed bracket are respectively provided with a clamping head assembly, the clamping head assembly comprises a clamping head block located on both sides of the wire rope, the clamping head block is used to clamp the wire rope and introduce a fusing current into the wire rope; A second support base is provided on the bakelite base plate, a sliding copper base plate is provided on the side of the second support base close to the rotating bracket, a power supply braided lead is provided on the sliding copper base plate, an alloy carbon brush frictionally matched with the sliding copper base plate is provided on the rotating bracket, a carbon brush braided lead is provided on the alloy carbon brush, a first clamp braided lead is provided on the chuck block of the fixed bracket, the first clamp braided lead and the power supply braided lead are respectively connected to a fuse transformer, a second clamp braided lead is provided on the chuck block of the rotating bracket, the second clamp braided lead is connected to the carbon brush braided lead, and the fusing current is set by the fusing transformer; The sliding copper bottom plate is fixed on the second support seat through a tensioning adjustment screw, and a tensioning spring is provided between the sliding copper bottom plate and the second support seat.

2. The elevator steel wire rope fusing device according to claim 1, characterized in that: A first support seat is provided on the bakelite bottom plate, a guide rail and a stretching cylinder are provided on the first support seat, a slide seat driven by the stretching cylinder is slidably provided on the guide rail, and the fixed bracket is installed on the slide seat.

3. The elevator steel wire rope fusing device according to claim 2, characterized in that: A hollow shaft is rotatably provided on the second support seat, and a steel wire rope passes through the hollow shaft. One end of the hollow shaft is assembled and connected to the rotating bracket, and a rotating sprocket is provided at the other end. A DC reduction motor is provided on the bakelite bottom plate, and the output end of the DC reduction motor is connected to the rotating sprocket through a chain.

4. The elevator wire rope fusing device according to claim 3, characterized in that: The fixed bracket and the rotating bracket are respectively provided with a clamping cylinder for driving the chuck block. The clamping cylinder of the fixed bracket is connected to an external air source. The shaft end of the hollow shaft is provided with a pneumatic slip ring. The fixed part of the pneumatic slip ring is fixed to the bakelite base plate through a third support seat, and an air inlet pipe is provided on the fixed part. The rotating part of the pneumatic slip ring is connected to the clamping cylinder pipeline of the rotating bracket.

5. The elevator wire rope fusing device according to claim 1, characterized in that: The end of the chuck block is configured to be in a concave-convex tooth shape.

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