Friction type hoister rope groove turning device

Abstract

The utility model relates to a friction type elevator rope groove turning device, and relates to the field of rope groove turning, the friction type elevator rope groove turning device comprises a base, the base is provided with a locking assembly used for fixing the base, the upper end face of the base is provided with a first guide rail and a second guide rail which are perpendicular to each other, and the base is provided with a first driving device used for driving the second guide rail to move along the first guide rail; a cutter assembly is arranged on the side, away from the first guide rail, of the second guide rail. The second guide rail is provided with a second driving device for driving the cutter assembly to move along the second guide rail. The device has the advantages that the base is installed on the elevator winding drum rack through the locking assembly, the first driving device is used for adjusting the second guide rail and the cutter assembly to the position of a rope groove needing to be machined, and the second driving device is used for adjusting the cutter assembly to the depth needing to be machined of an elevator winding drum; and the effect of improving the turning precision of the rope groove is effectively achieved.

Description

Technical Field

[0001] The present application relates to the field of rope groove turning, and in particular to a rope groove turning device for a friction hoist. Background Art

[0002] At present, compared with a winding hoist, a friction hoist has the characteristics of safety, high efficiency, low energy consumption, etc., and is widely used in mines. The friction hoist drives the rotation of the steel wire rope through the friction between the rope grooves on the hoist drum and the steel wire rope placed in each rope groove, and realizes the winding and unwinding of the friction hoist. However, when the rope groove and the steel wire rope are rubbed for a long time, the rope groove will be worn, and at this time, turning operation needs to be carried out on the rope groove to reduce the error between the rope grooves, so that the forces on each steel wire rope are the same.

[0003] In the existing common turning operation, a turning tool device with a guide rail is installed on the hoist drum frame. The position of the turning tool head is adjusted by manually adjusting the turning tool rest, and the turning of the rope groove is realized by a circular turning tool.

[0004] In view of the above related technologies, since it is difficult to fix the guide rail when cutting multiple rope grooves, and the inner wall of the rope groove is corrugated and prone to tool breakage during turning with a circular turning tool head, the accuracy after turning is finally low. Utility Model Content

[0005] In order to improve the turning accuracy of the rope groove of the friction hoist, the present application provides a rope groove turning device for a friction hoist.

[0006] The present application provides a rope groove turning device for a friction hoist, and adopts the following technical solutions:

[0007] A rope groove turning device for a friction hoist includes a base, the base is provided with a locking assembly for fixing the base, the upper end surface of the base is provided with a first guide rail and a second guide rail perpendicular to each other, the base is provided with a first driving device for driving the second guide rail to move along the first guide rail, a cutting tool assembly is provided on the side of the second guide rail away from the first guide rail, and the second guide rail is provided with a second driving device for driving the cutting tool assembly to move along the second guide rail.

[0008] By adopting the above technical solutions, the base is installed on the hoist drum frame by using the locking assembly, the second guide rail and the cutting tool assembly are adjusted to the position of the rope groove to be processed by using the first driving device, and the cutting tool assembly is adjusted to the depth required for processing the hoist drum by using the second driving device, effectively improving the turning accuracy of the rope groove.

[0009] Optionally, the locking assembly includes a wedge block and a locking screw. A plurality of threaded holes adapted to the locking screw are provided on one side of the base away from the first guide rail, and the threaded holes are perpendicular to the first guide rail.

[0010] By adopting the above technical solution, the locking screw presses against the end face of the wedge block, and the base is fixed and installed by the mutual extrusion of the inclined surface of the wedge block and the inclined groove of the hoist drum frame. The stability of the base is improved by increasing the contact area with the hoist drum frame, effectively increasing the accuracy of the rope groove cutting.

[0011] Optionally, the cutter assembly includes a main shaft motor and a round-bottom milling cutter.

[0012] By adopting the above technical solution, the main shaft motor rotates to drive the round-bottom milling cutter to rotate. The rope groove is turned by the rotating round-bottom milling cutter. The rotating round-bottom milling cutter can increase the contact area with the inner wall of the rope groove, effectively improving the problem that the rope groove is corrugated after turning, and thus effectively improving the accuracy of turning.

[0013] Optionally, the main shaft motor is provided with a cooling fan for cooling the main shaft.

[0014] By adopting the above technical solution, when the main shaft motor drives the round-bottom milling cutter to rotate and turn, the cooling fan cools the main shaft motor. By cooling the main shaft motor, the main shaft motor can continuously work for a long time, thereby effectively improving the turning speed.

[0015] Optionally, a mounting plate is provided between the first guide rail and the second guide rail, and the second guide rail is detachably connected to the mounting plate.

[0016] By adopting the above technical solution, a mounting plate is provided between the first guide rail and the second guide rail, which is convenient for the operator to disassemble between the second guide rail and the first guide rail. It effectively simplifies the maintenance of the first guide rail and the second guide rail by the operator.

[0017] Optionally, the first driving device includes a first lead screw and a first servo motor. The mounting plate is rotatably connected to the first lead screw. The first lead screw is arranged parallel to the first guide rail. A first threaded hole adapted to the first lead screw is provided on the lower end face of the mounting plate.

[0018] By adopting the above technical solution, when it is necessary to replace different rope grooves for turning operations, the first servo motor rotates the first lead screw, so that the first lead screw rotates in the first threaded hole. At this time, the mounting plate and the related components on the mounting plate slide along the first guide rail. The cutting tool device can be effectively adjusted to align with the cutting tool groove by the first servo motor to improve the turning accuracy.

[0019] Optionally, the mounting plate is provided with a dust-proof box, and the second guide rail is arranged in the dust-proof box.

[0020] By adopting the above technical solution, the second guide rail is shielded by the dust-proof box, making it difficult for the chips generated during turning to fall onto the second guide rail, playing a protective role for the second guide rail and effectively reducing the damage of the second guide rail caused by the chips generated during turning.

[0021] Optionally, the second driving device includes a second lead screw and a second servo motor. The second lead screw is rotatably connected to the inner wall of the dust-proof box, the second lead screw is arranged parallel to the second guide rail, and the cutter assembly is provided with a second threaded hole adapted to the second lead screw.

[0022] By adopting the above technical solution, the second servo motor drives the second lead screw to rotate inside the inner wall of the dust-proof box. As the second lead screw rotates, the position of the cutter assembly also changes accordingly, thereby realizing the precise control of the distance between the cutter assembly and the bottom of the rope groove, and effectively improving the precision of turning.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The base is installed on the hoist drum frame using the locking component. The first driving device is used to adjust the second guide rail and the cutter assembly to the position of the rope groove to be processed. The second driving device is used to adjust the cutter assembly to the depth required for processing the hoist drum, effectively improving the precision of rope groove turning.

[0025] 2. The end face of the wedge block is pressed by the locking screw. The base is fixed and installed by the mutual extrusion of the inclined surface of the wedge block and the inclined groove of the hoist drum frame. The stability of the base is improved by increasing the contact area with the hoist drum frame, effectively increasing the precision of rope groove cutting. Description of the Drawings

[0026] Figure 1 is a schematic diagram after the installation of a friction hoist rope groove turning device.

[0027] Figure 2 is a schematic cross-sectional view of the internal structure.

[0028] Figure 3 is a schematic diagram of the overall structure.

[0029] Description of the reference numerals: 101, hoist drum frame; 102, inclined groove; 1, base; 11, first guide rail; 12, dust-proof box; 13, second guide rail; 14, mounting plate; 2, locking component; 21, locking screw; 22, wedge block; 3, first driving device; 31, first servo motor; 32, first lead screw; 4, cutter assembly; 41, spindle motor; 411, cooling fan; 42, round-bottom milling cutter; 5, second driving device; 51, second lead screw; 52, second servo motor. Detailed implementation mode

[0030] The following further elaborates on this application in conjunction with all the attached drawings.

[0031] An embodiment of this application discloses a frictional hoist rope groove turning device.

[0032] Refer to Figure 1 And Figure 2 , a frictional hoist rope groove turning device, including a base 1, and a locking assembly 2 for fixing the base 1 is installed on the base 1. A first guide rail 11 and a second guide rail 13 perpendicular to each other are installed on the upper end surface of the base 1. The base 1 is equipped with a first driving device 3 for driving the second guide rail 13 to move along the first guide rail 11. A cutter assembly 4 is provided on the side of the second guide rail 13 away from the first guide rail 11, and the second guide rail 13 is provided with a second driving device 5 for driving the cutter assembly 4 to move along the second guide rail 13. The operator operates the first driving device 3 to align the cutter assembly 4 with the rope groove, and by operating the second driving device 5, the position of the cutter device and the bottom of the rope groove can be adjusted, thereby adjusting the turning depth, and finally improving the turning accuracy.

[0033] Refer to Figure 1 , the conventional fixing method of the base 1 usually uses the ends of bolts to abut against both sides of the hoist drum frame 101 for installation. However, since both sides of the hoist drum frame 101 are usually not flat surfaces but inclined grooves 102, the contact area between the bolts and the inclined grooves 102 is small, resulting in unstable installation. To solve the problem of the installation stability of the base 1, the locking assembly 2 includes four wedge blocks 22 and four locking screws 21, and there are four threaded holes on the lower end surface of the base 1 that are adapted to the locking screws 21. When installing the base 1, the operator screws the locking screws 21 into the threaded holes, places the wedge blocks 22 on the inclined grooves 102 of the hoist drum frame 101 and the ends of the locking screws 21, and the operator tightens the locking screws 21 to push the wedge blocks 22 into the inclined grooves 102 of the hoist drum frame 101, and the wedge blocks 22 are clamped by the inclined grooves 102. By increasing the effective contact area with the hoist drum frame 101, the stable installation and connection of the base 1 are realized. So that the position of the first guide rail 11 remains unchanged after turning a single rope groove.

[0034] Refer to Figure 2 , for the convenience of the maintenance and repair of the turning device. An installation plate 14 is installed between the first guide rail 11 and the second guide rail 13. The second guide rail 13 is installed on the installation plate 14, and the installation plate 14 is installed on the guide block on the first guide rail 11. When some components of the turning device need to be repaired, the components to be maintained are removed from the installation plate 14 for separate maintenance. This effectively simplifies the operation of the operator when maintaining and repairing the turning device.

[0035] Referring to Figure 1 , in order to align the cutter device with each rope groove, in this embodiment, it is preferable that the first driving device 3 includes a first lead screw 32 and a first servo motor 31. The first lead screw 32 is arranged parallel to the first guide rail 11, and a first threaded hole adapted to the first lead screw 32 is formed on the lower end surface of the mounting plate 14. Since the first servo motor 31 can accurately control the rotation angle, when the cutter assembly 4 needs to be adjusted along the direction of the first guide rail 11, the operator drives the first servo motor 31 to rotate, thereby driving the first lead screw 32 to rotate. At this time, the mounting plate 14 slides on the first guide rail 11 as the first lead screw 32 rotates. By accurately controlling the rotation of the first servo motor 31, the sliding distance can be accurately controlled, so that the cutter assembly 4 is aligned with the rope groove. Compared with manually pushing and adjusting, the adjustment of the first servo motor 31 is more accurate, and it can be self-locked after stopping rotation, so as to reduce vibration and crosstalk during turning.

[0036] Referring to Figure 2 and Figure 3 , during the turning process, there will be a lot of cutting debris generated by turning. When the debris falls on the second guide rail 13, it may cause damage to the slider on the second guide rail 13 due to the debris during sliding. In order to reduce the occurrence of the above situation, the mounting plate 14 is provided with a dust-proof box 12, and the second guide rail 13 is arranged in the dust-proof box 12. When there is debris generated by turning, the debris is blocked outside by the dust-proof box 12, making it difficult for the debris to contact the second guide rail 13, thereby playing a role in protecting the second guide rail 13.

[0037] Referring to Figure 2 and Figure 3 , in order to adjust the feeding progress of the cutter assembly 4, in this embodiment, the second driving device 5 includes a second lead screw 51 and a second servo motor 52. The second lead screw 51 is rotatably connected to the inner wall of the dust-proof box 12. The cutter assembly 4 is provided with a second threaded hole adapted to the second lead screw 51, and the second lead screw 51 is installed parallel to the second guide rail 13. The operator rotates the second servo motor 52 to drive the second lead screw 51 to rotate, and the distance between the cutter and the bottom of the rope groove is accurately controlled through the second servo motor. Thereby, the cutting accuracy is improved.

[0038] Referring to Figure 1, in this embodiment, the spindle motor 41 and the round-bottom milling cutter 42 are preferably used as the cutting tool assembly 4. Compared with the traditional circular cutting tool, the rotating round-bottom milling cutter 42 has a large contact area with the rope groove when cutting the rope groove. When using the round-bottom milling cutter 42 for turning, since the round-bottom milling cutter 42 always maintains a high-speed rotation state, it is difficult for corrugated cutting tool marks to appear in the rope groove turned by the round-bottom milling cutter 42. And due to the high-speed rotation, the cutting force of the round-bottom milling cutter 42 during turning is greater, making it difficult for tool breakage and cutter breakage to occur during the turning process.

[0039] Refer to Figure 1 , when the spindle motor 41 drives the round-bottom milling cutter 42 to rotate and perform turning, a large amount of heat will be generated. If the heat is not discharged in time, it will cause the spindle motor 41 to overheat and stop. To dissipate heat from the spindle motor 41, a cooling fan 411 is installed at the spindle motor 41. The cooling fan 411 dissipates heat from the spindle motor 41, so that the temperature of the spindle motor 41 will not change significantly, which can enable the spindle motor 41 to continuously work for a long time and improve the turning speed.

[0040] The implementation principle of a rope groove turning device for a friction hoist in an embodiment of this application is as follows: The wedge block 22 and the hoist drum frame 101 are stably connected through the locking screw 21, reducing the crosstalk of the first guide rail 11 caused by turning after a single rope groove is turned, thereby improving the accuracy of position adjustment of the cutting tool assembly 4, etc. The position of the round-bottom milling cutter 42 is precisely controlled by the first servo motor 31 and the second servo motor 52.

[0041] The above are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A friction hoist rope groove turning device, comprising a base (1), characterized in that: The base (1) is provided with a locking assembly (2) for fixing the base (1); the upper end surface of the base (1) is provided with a first guide rail (11) and a second guide rail (13) which are perpendicular to each other; the base (1) is provided with a first driving device (3) for driving the second guide rail (13) to move along the first guide rail (11); a cutter assembly (4) is provided on a side of the second guide rail (13) away from the first guide rail (11); the second guide rail (13) is provided with a second driving device (5) for driving the cutter assembly (4) to move along the second guide rail (13); the locking assembly (2) comprises a wedge block (22) and a locking screw (21); a plurality of threaded holes adapted to the locking screw (21) are provided on a side of the base (1) away from the first guide rail (11); the threaded holes are perpendicular to the first guide rail (11).

2. A friction hoist rope groove turning device according to claim 1, characterized in that: The cutter assembly (4) comprises a spindle motor (41) and a circular bottom milling cutter (42).

3. A friction hoist rope groove turning device according to claim 2, characterized in that: The spindle motor (41) is provided with a cooling fan (411) for cooling the spindle.

4. A friction hoist rope groove turning device according to claim 1, characterized in that: A mounting plate (14) is provided between the first guide rail (11) and the second guide rail (13), and the second guide rail (13) and the mounting plate (14) are detachably connected.

5. A friction hoist rope groove turning device according to claim 4, characterized in that: The first driving device (3) comprises a first lead screw (32) and a first servo motor (31); the mounting plate (14) is rotatably connected to the first lead screw (32); the first lead screw (32) is arranged parallel to the first guide rail (11); and the lower end surface of the mounting plate (14) is provided with a first thread hole adapted to the first lead screw (32).

6. A friction hoist rope groove turning device according to claim 4, characterized in that: The mounting plate (14) is provided with a dustproof box (12), and the second guide rail (13) is arranged in the dustproof box (12).

7. A friction hoist rope groove turning device according to claim 6, characterized in that: The second driving device (5) comprises a second lead screw (51) and a second servo motor (52); the second lead screw (51) is rotatably connected to the inner wall of the dustproof box (12); the second lead screw (51) and the second guide rail (13) are arranged in parallel; and the cutter assembly (4) is provided with a second thread hole adapted to the second lead screw (51).

Images