CN116969291A - Rope anti-drop device and clearance adjustment method for rope anti-drop device - Google Patents
Rope anti-drop device and clearance adjustment method for rope anti-drop device Download PDFInfo
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- CN116969291A CN116969291A CN202210968097.XA CN202210968097A CN116969291A CN 116969291 A CN116969291 A CN 116969291A CN 202210968097 A CN202210968097 A CN 202210968097A CN 116969291 A CN116969291 A CN 116969291A
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- rope
- adjusting
- inclined surface
- hemispherical
- axial direction
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001012 protector Effects 0.000 claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/02—Rope or cable carriers
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention provides a rope anti-drop device and a clearance adjustment method of the rope anti-drop device, which can make rope protection elements parallel to a rope sheave. The rope anti-disengaging device comprises: a fixing member (3); a first adjustment member (4); a second adjustment member (5); a first adjusting bolt (6) that moves, by moving, the first adjusting member (4) in the axial direction (D1); a second adjusting bolt (7) that moves the second adjusting member (5) in the axial direction (D1) by moving; and a rope protector (8) supported by the fixing member (3) via the first adjustment member (4) and the second adjustment member (5), wherein a first inclined surface (804) contacting the first adjustment member and a second inclined surface (805) contacting the second adjustment member are formed on the rope protector (8), and the first inclined surface is moved by the first adjustment member so as to move in the radial direction (D2), and the second inclined surface is moved by the second adjustment member so as to move in the radial direction.
Description
Technical Field
The present invention relates to a rope release preventing device and a method for adjusting a gap of the rope release preventing device.
Background
Conventionally, a rope retaining device including a fixing member, a rope protector, and an adjusting bolt has been known. The fixing member is fixed to the traction machine housing. The rope protector is provided between a rope suspended on the sheave and the fixing member. The adjusting bolt is arranged on the fixing part. The adjustment bolt moves relative to the fixing member, whereby the rope protector moves in a direction approaching the rope (for example, refer to patent document 1).
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open publication 2016-222445
Disclosure of Invention
Problems to be solved by the invention
However, the fixing member and the rope protecting member are parallel to each other. Therefore, when the fixing member is not parallel to the sheave, the rope protector cannot be made parallel to the sheave. Accordingly, it is difficult to uniformly adjust the gaps between the plurality of ropes suspended on the sheave and the fixing member, respectively.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a rope release preventing device and a method for adjusting a clearance of the rope release preventing device, which can make a rope protector parallel to a sheave.
Means for solving the problems
The rope anti-drop device of the invention comprises: a fixing member which is provided so as to face the rope suspended on the sheave and is fixed to the hoisting machine casing; a first adjustment member supported by the fixing member and movable relative to the fixing member in the axial direction of the sheave; a second adjusting member supported by the fixing member and provided so as to be separated from the first adjusting member in the axial direction, and movable in the axial direction with respect to the fixing member; a first adjustment bolt provided so as to be movable with respect to the fixed member, the first adjustment member being moved in the axial direction by the movement; a second adjustment bolt provided so as to be movable with respect to the fixed member, the second adjustment member being moved in the axial direction by the movement; and a rope protector provided between the rope and the fixing member, supported by the fixing member via the first adjusting member and the second adjusting member, wherein the rope protector is formed with a first inclined surface contacting the first adjusting member and a second inclined surface contacting the second adjusting member, and the first inclined surface is moved by the first adjusting member so as to move in the radial direction of the sheave via the first adjusting member, and the second inclined surface is moved by the second adjusting member so as to move in the radial direction via the second adjusting member.
Effects of the invention
According to the rope drop preventing device and the method for adjusting the clearance of the rope drop preventing device of the present invention, the rope protector can be made parallel to the sheave.
Drawings
Fig. 1 is a side view showing a rope anti-slip device according to embodiment 1.
Fig. 2 is an enlarged view showing a case where the first inclined surface of fig. 1 is pushed up.
Fig. 3 is an enlarged view illustrating a case where the first inclined surface of fig. 1 descends due to its own weight.
Fig. 4 is an enlarged view showing a case where the second inclined surface of fig. 1 is pushed up.
Fig. 5 is an enlarged view showing a case where the second inclined surface of fig. 1 descends due to its own weight.
Fig. 6 is a flowchart showing a method of adjusting the backlash of the rope stopper according to embodiment 1.
Fig. 7 is a side view showing a first adjusting member of the rope anti-slip device of embodiment 2.
Fig. 8 is a side view showing a second adjusting member of the rope anti-slip device of embodiment 2.
Description of the reference numerals
1: an elevator traction machine; 2: a rope; 3: a fixing member; 4: a first adjustment member; 5: a second adjusting part; 6: a first adjusting bolt; 7: a second adjusting bolt; 8: a rope protector; 9: a fixing bolt; 10: a lock nut; 11: a lock nut; 12: a lock nut; 13: a fastening bolt; 101: a tractor housing; 102: a rope pulley; 103: rope grooves; 301: a mounting part; 302: a base; 303: a first arm portion; 304: a second arm portion; 305: a first plate portion; 306: a second plate portion; 307: a threaded hole; 308: a first plate portion; 309: a second plate portion; 310: a threaded hole; 311: a threaded hole; 401: a first hemispherical portion; 402: a first moving part; 403: a convex hemispherical surface; 404: a plane; 405: concave hemispherical surface; 501: a second hemispherical portion; 502: a second moving part; 503: a convex hemispherical surface; 504: a plane; 505: concave hemispherical surface; 801: a mounting part; 802: a rope protector body; 803: a connecting part; 804: a first inclined surface; 805: and a second inclined surface.
Detailed Description
Embodiment 1
Fig. 1 is a side view showing a rope anti-slip device according to embodiment 1. The rope anti-drop apparatus of embodiment 1 is attached to an elevator hoisting machine 1. The elevator hoisting machine 1 includes a hoisting machine housing 101 and a sheave 102. A plurality of rope grooves 103 are formed in the sheave 102. One rope 2 is hung in each of the rope grooves 103.
The direction along the axis of the sheave 102 is referred to as the axial direction D1. On a plane perpendicular to the axis of the sheave 102, a direction along the radius of a circle centered on the axis of the sheave 102 is taken as a radial direction D2. The plurality of rope grooves 103 are aligned along the axial direction D1. Thus, the plurality of ropes 2 are aligned in the axial direction D1.
The rope release preventing device according to embodiment 1 includes a fixing member 3, a first adjusting member 4, a second adjusting member 5, a first adjusting bolt 6, a second adjusting bolt 7, a rope protector 8, and a pair of fixing bolts 9. The rope anti-slip device according to embodiment 1 includes a lock nut 10, a lock nut 11, and a pair of lock nuts 12.
The fixing member 3 is fixed to the hoisting machine housing 101. The fixing member 3 includes an attachment portion 301, a base portion 302, a first arm portion 303, and a second arm portion 304.
The mounting portion 301 is mounted to the hoisting machine housing 101 by a plurality of fastening bolts 13. The base 302 extends from the mounting portion 301 in a direction away from the hoisting machine housing 101 in the axial direction D1. The first arm 303 and the second arm 304 are respectively disposed on the base 302. The first arm 303 and the second arm 304 are separated from each other in the axial direction D1. The second arm 304 is located closer to the mounting portion 301 than the first arm 303.
The first arm 303 includes: a first plate portion 305 extending from the base portion 302 in a direction approaching the sheave 102 in the radial direction D2; and a second plate portion 306 extending from a front end portion of the first plate portion 305 in a direction approaching the second arm portion 304 in the axial direction D1. A screw hole 307 penetrating in the axial direction D1 is formed in the first plate portion 305.
The second arm 304 includes: a first plate portion 308 extending from the base portion 302 in a direction approaching the sheave 102 in the radial direction D2; and a second plate 309 extending from a front end portion of the first plate 308 in a direction approaching the first arm 303 in the axial direction D1. A screw hole 310 penetrating in the axial direction D1 is formed in the first plate portion 308.
A pair of screw holes 311 penetrating in the radial direction D2 is formed in the base 302. The pair of screw holes 311 are arranged apart from each other in the axial direction D1.
The first adjusting member 4 is supported by the fixing member 3. Specifically, the first adjusting member 4 is placed on the second plate portion 306 of the first arm portion 303. The first adjusting member 4 is movable in the axial direction D1 with respect to the fixing member 3. The first regulation member 4 is formed in a wedge shape.
The second adjusting member 5 is supported by the fixing member 3. Specifically, the second adjusting member 5 is mounted on the second plate portion 309 of the second arm portion 304. The second adjusting member 5 is movable in the axial direction D1 with respect to the fixing member 3. The second regulation member 5 is formed in a wedge shape.
The second adjusting member 5 is provided separately from the first adjusting member 4 in the axial direction D1. The first regulating member 4 is arranged such that the thickness dimension in the radial direction D2 becomes smaller as approaching the second regulating member 5 in the axial direction D1. The second regulating member 5 is arranged such that the thickness dimension in the radial direction D2 becomes smaller as approaching the first regulating member 4 in the axial direction D1.
The first adjusting bolt 6 is provided so as to be movable in the axial direction D1 with respect to the fixed member 3. Specifically, the first adjusting bolt 6 is inserted into the screw hole 307 of the first arm portion 303. The first adjusting bolt 6 is rotated by the first adjusting bolt 6, so that the first adjusting bolt 6 moves in the axial direction D1 with respect to the first arm 303.
The first adjusting member 4 is moved in the axial direction D1 by the first adjusting bolt 6 being moved in the axial direction D1. Specifically, the first adjustment member 4 is disposed closer to the second arm 304 than the first adjustment bolt 6. The front end portion of the first adjustment bolt 6 is in contact with the first adjustment member 4. Therefore, the first adjusting bolt 6 moves toward the second arm 304, so that the first adjusting member 4 is pressed by the first adjusting bolt 6 and moves toward the second arm 304.
The second adjusting bolt 7 is provided so as to be movable in the axial direction D1 with respect to the fixed member 3. Specifically, the second adjusting bolt 7 is inserted into the screw hole 310 of the second arm portion 304. The second adjusting bolt 7 is rotated by the second adjusting bolt 7, so that the second adjusting bolt 7 moves in the axial direction D1 with respect to the second arm portion 304.
The second adjusting member 5 is moved in the axial direction D1 by the second adjusting bolt 7 being moved in the axial direction D1. Specifically, the second adjusting member 5 is disposed closer to the first arm 303 than the second adjusting bolt 7. The tip end portion of the second adjusting bolt 7 is in contact with the second adjusting member 5. Therefore, the second adjusting bolt 7 moves toward the first arm 303, so that the second adjusting member 5 is pressed by the second adjusting bolt 7 and moves toward the first arm 303.
The rope protector 8 is provided between the rope 2 and the fixing member 3. The rope protector 8 is supported by the fixing member 3 via the first adjusting member 4 and the second adjusting member 5. The rope protector 8 is disposed directly above the sheave 102. The rope protector 8 includes a mounting portion 801, a rope protector body 802, and a coupling portion 803.
The mounting portion 801 is disposed between the first arm 303 and the second arm 304 in the axial direction D1. The mounting portion 801 has a first inclined surface 804 contacting the first adjustment member 4 and a second inclined surface 805 contacting the second adjustment member 5.
The first inclined surface 804 and the second inclined surface 805 are separated from each other in the axial direction D1. The second inclined surface 805 is located closer to the mounting portion 301 than the first inclined surface 804.
The rope protector main body 802 is disposed closer to the rope 2 than the fixing member 3 in the radial direction D2. The rope protector body 802 faces the plurality of ropes 2 in the radial direction D2. For example, when an earthquake occurs, the rope 2 vibrates. When the rope 2 vibrates, the rope protector body 802 suppresses the rope 2 from falling out of the rope groove 103.
The connecting portion 803 connects the attachment portion 801 to the rope protector main body 802. The coupling portion 803 passes between the second plate portion 306 of the first arm portion 303 and the second plate portion 309 of the second arm portion 304 in the radial direction D2.
Fig. 2 is an enlarged view showing a case where the first inclined surface 804 of fig. 1 is pushed up. Fig. 3 is an enlarged view showing a case where the first inclined surface 804 of fig. 1 descends due to its own weight. The first inclined surface 804 is disposed so as to approach the sheave 102 as approaching the second inclined surface 805.
The first regulating member 4 contacts the first inclined surface 804 from below. The surface of the first adjusting member 4 in contact with the first inclined surface 804 is disposed so as to approach the sheave 102 as approaching the second adjusting member 5.
The first inclined surface 804 is moved in the radial direction D2 by the first adjusting member 4 being moved in the axial direction D1. Specifically, the first inclined surface 804 is moved in a direction away from the sheave 102 by the movement of the first adjusting member 4 in a direction toward the second adjusting member 5. On the other hand, the first inclined surface 804 is moved in a direction approaching the sheave 102 by its own weight by the movement of the first adjusting member 4 in a direction away from the second adjusting member 5.
Fig. 4 is an enlarged view showing a case where the second inclined surface 805 of fig. 1 is pushed up. Fig. 5 is an enlarged view showing a case where the second inclined surface 805 of fig. 1 descends due to its own weight. The second inclined surface 805 is disposed so as to approach the sheave 102 as approaching the first inclined surface 804.
The second regulating member 5 contacts the second inclined surface 805 from below. The surface of the second adjusting member 5 that contacts the second inclined surface 805 is disposed so as to approach the sheave 102 as approaching the first adjusting member 4.
The second inclined surface 805 is moved in the radial direction D2 by the second adjusting member 5 by being moved in the axial direction D1. Specifically, the second inclined surface 805 is moved in a direction away from the sheave 102 by the movement of the second adjusting member 5 in a direction approaching the first adjusting member 4. On the other hand, the second inclined surface 805 is moved by its own weight in a direction approaching the sheave 102 by the movement of the second adjusting member 5 in a direction away from the first adjusting member 4.
As shown in fig. 1, a pair of fixing bolts 9 is provided to the base 302 of the fixing member 3. Specifically, the pair of fixing bolts 9 are respectively inserted in the pair of screw holes 311 of the base 302 in one-to-one correspondence. In each of the fixing bolts 9, the fixing bolts 9 are moved in the radial direction D2 with respect to the fixing member 3 by the rotation of the fixing bolts 9.
The fixing bolt 9 can be brought into contact with the rope protector 8 from the outside in the radial direction D2. The movement of each of the first inclined surface 804 and the second inclined surface 805 to the outside in the radial direction D2 is restricted by the fixing bolt 9 coming into contact with the rope protector 8. When the first inclined surface 804 does not move in a direction approaching the sheave 102 due to its own weight, the operator operates the fixing bolt 9 to move the fixing bolt 9 toward the sheave 102. The fixing bolt 9 moves toward the sheave 102, so that the rope protector 8 is pressed by the fixing bolt 9, and the first inclined surface 804 moves in a direction approaching the sheave 102. When the second inclined surface 805 does not move in a direction approaching the sheave 102 due to its own weight, the operator operates the fixing bolt 9 to move the fixing bolt 9 toward the sheave 102. The fixing bolt 9 moves toward the sheave 102, so that the rope protector 8 is pressed by the fixing bolt 9, and the second inclined surface 805 moves in a direction approaching the sheave 102.
A lock nut 10 is mounted to the first adjusting bolt 6. The lock nut 10 is rotated by the lock nut 10 so that the lock nut 10 moves in the axial direction of the first adjusting bolt 6 with respect to the first adjusting bolt 6. The first adjusting bolt 6 is fixed relative to the first arm 303 by the lock nut 10 coming into contact with the first arm 303.
A lock nut 11 is mounted to the second adjusting bolt 7. The lock nut 11 is rotated by the lock nut 11 so that the lock nut 11 moves in the axial direction of the second adjusting bolt 7 with respect to the second adjusting bolt 7. The second adjusting bolt 7 is fixed relative to the second arm 304 by the lock nut 11 coming into contact with the second arm 304.
A pair of lock nuts 12 are respectively mounted to the pair of fixing bolts 9 in one-to-one correspondence. The lock nut 12 is rotated by the lock nut 12 so that the lock nut 12 moves in the axial direction of the corresponding fixing bolt 9 with respect to the corresponding fixing bolt 9. The corresponding fixing bolt 9 is fixed relative to the base 302 by the lock nut 12 coming into contact with the base 302.
Next, a process of adjusting the gap S between the rope 2 and the rope protector 8 using the rope release preventing device of embodiment 1 will be described. Fig. 6 is a flowchart showing a method of adjusting the backlash of the rope stopper according to embodiment 1. The gap adjustment method of the rope anti-slip device according to embodiment 1 includes a first step S101, a second step S102, and a third step S103.
In the first step S101, the first adjusting bolt 6 and the second adjusting bolt 7 are moved in directions to separate from each other, and the rope protector 8 is brought into contact with the plurality of ropes 2.
Thereafter, in the second step S102, the first adjusting bolt 6 and the second adjusting bolt 7 are moved in directions approaching each other from the state where the rope protector 8 is in contact with each rope 2. The first adjusting bolt 6 and the second adjusting bolt 7 are moved in the axial direction D1, and the first adjusting member 4 and the second adjusting member 5 are moved in the radial direction D2, respectively, to thereby adjust the dimension L of the gap S between the rope 2 and the rope protector 8. The size L of the gap S is adjusted by the operator while the operator views the gap S.
When the base 302 of the fixing member 3 is not parallel to the sheave 102, the movement amounts of the first adjusting member 4 and the second adjusting member 5 are adjusted so that the rope protector 8 is parallel to the sheave 102. By the rope protector 8 being parallel to the sheave 102, the gaps S between each of the plurality of ropes 2 suspended on the sheave 102 and the rope protector body 802 of the rope protector 8 are respectively uniformly adjusted.
When the rope protector 8 is displaced in the axial direction D1 from the sheave 102, the first adjusting bolt 6 and the second adjusting bolt 7 are moved in the same direction by the same distance. Thereby, the first adjusting member 4 and the second adjusting member 5 move the same distance in the same direction. As a result, the dimension L of the gap S between the rope protector 8 and the rope 2 does not change, and the position of the rope protector 8 relative to the sheave 102 in the axial direction D1 is adjusted.
After that, in the third step S103, the pair of fixing bolts 9 is brought into contact with the base 302. In addition, in the third step S103, the first adjusting bolt 6 is fixed with respect to the first arm portion 303 by means of the lock nut 10. In the third step S103, the second adjusting bolt 7 is fixed to the second arm 304 by the lock nut 11. Further, in the third step S103, the pair of fixing bolts 9 are fixed with respect to the base 302 by the pair of lock nuts 12, respectively. Up to this point, the process of adjusting the gap S between the rope 2 and the rope protector 8 using the rope release preventing device of embodiment 1 ends.
As described above, the rope anti-slip device according to embodiment 1 includes the fixing member 3, the first adjusting member 4, the second adjusting member 5, the first adjusting bolt 6, the second adjusting bolt 7, and the rope protector 8. The fixing member 3 is provided so as to face the rope 2 suspended on the sheave 102, and is fixed to the hoisting machine housing 101. The first adjusting member 4 is supported by the fixing member 3 and is movable in the axial direction D1 with respect to the fixing member 3. The second adjusting member 5 is supported by the fixing member 3 and provided so as to be separated from the first adjusting member 4 in the axial direction D1, and is movable in the axial direction D1 with respect to the fixing member 3. The first adjustment bolt 6 is provided so as to be movable with respect to the fixed member 3, and by the movement, the first adjustment member 4 is moved in the axial direction D1. The second adjusting bolt 7 is provided so as to be movable with respect to the fixed member 3, and by the movement, the second adjusting member 5 is moved in the axial direction D1. The rope protector 8 is provided between the rope 2 and the fixing member 3, and is supported by the fixing member 3 via the first adjusting member 4 and the second adjusting member 5. The rope protector 8 has a first inclined surface 804 contacting the first adjusting member 4 and a second inclined surface 805 contacting the second adjusting member 5. The first inclined surface 804 is moved in the radial direction D2 by the first adjusting member 4, and the second inclined surface 805 is moved in the radial direction D2 by the second adjusting member 5 by the first adjusting member 4. According to this configuration, when the base 302 of the fixing member 3 is not parallel to the sheave 102, the movement amounts in the radial direction D2 of each of the first inclined surface 804 and the second inclined surface 805 can be adjusted so that the rope protector 8 is parallel to the sheave 102. This makes it possible to make the rope protector 8 parallel to the sheave 102.
The gap adjustment method of the rope anti-slip device according to embodiment 1 includes a first step S101 and a second step S102. In a first step S101, the rope protector 8 is brought into contact with the rope 2. In the second step S102, the first adjusting bolt 6 and the second adjusting bolt 7 are moved from the state where the rope protector 8 is in contact with the rope 2, and the first adjusting member 4 and the second adjusting member 5 are moved, respectively, to thereby adjust the gap S. According to this configuration, when the base 302 of the fixing member 3 is not parallel to the sheave 102, the movement amounts in the radial direction D2 of each of the first inclined surface 804 and the second inclined surface 805 can be adjusted so that the rope protector 8 is parallel to the sheave 102. This makes it possible to make the rope protector 8 parallel to the sheave 102.
Embodiment 2
Fig. 7 is a side view showing a first adjusting member of the rope anti-slip device of embodiment 2. Fig. 8 is a side view showing a second adjusting member of the rope anti-slip device of embodiment 2. In the rope anti-slip device according to embodiment 2, the first adjusting member 4 includes the first hemispherical portion 401 and the first moving portion 402, and the second adjusting member 5 includes the second hemispherical portion 501 and the second moving portion 502.
A convex hemispherical surface 403 and a flat surface 404 are formed in the first hemispherical portion 401. A concave hemispherical surface 405 is formed on the first moving portion 402 so as to be in surface contact with the convex hemispherical surface 403 of the first hemispherical portion 401. The radius of the convex hemispherical surface 403 and the radius of the concave hemispherical surface 405 are the same as each other. The first hemispherical portion 401 is rotatable relative to the first moving portion 402 inside the concave hemispherical surface 405.
The orientation of the plane 404 is changed by the rotation of the first hemispherical portion 401 relative to the first moving portion 402. The first hemispherical portion 401 rotates with respect to the first moving portion 402 such that the plane 404 of the first hemispherical portion 401 is parallel with respect to the first inclined plane 804. The flat surface 404 of the first hemispherical portion 401 is in surface contact with the first inclined surface 804. The tip end portion of the first adjusting bolt 6 contacts the first moving portion 402.
A convex hemispherical surface 503 and a flat surface 504 are formed in the second hemispherical portion 501. A concave hemispherical surface 505 that is in surface contact with the convex hemispherical surface 503 of the second hemispherical portion 501 is formed in the second moving portion 502. The radius of the convex hemispherical surface 503 and the radius of the concave hemispherical surface 505 are the same as each other. The second hemispherical portion 501 is rotatable relative to the second moving portion 502 inside the concave hemispherical surface 505.
The second hemispherical portion 501 rotates with respect to the second moving portion 502, so that the orientation of the plane 504 changes. The second hemispherical portion 501 rotates with respect to the second moving portion 502 such that the plane 504 of the second hemispherical portion 501 is parallel with respect to the second inclined surface 805. The flat surface 504 of the second hemispherical portion 501 is in surface contact with the second inclined surface 805. The tip end portion of the second adjusting bolt 7 contacts the second moving portion 502.
Other structures of the rope release preventing device according to embodiment 2 are the same as those of the rope release preventing device according to embodiment 1.
As described above, in the rope anti-slip device according to embodiment 2, the first adjusting member 4 includes the first hemispherical portion 401 and the first moving portion 402. A convex hemispherical surface 403 and a flat surface 404 are formed in the first hemispherical portion 401. A concave hemispherical surface 405 is formed on the first moving portion 402 so as to be in surface contact with the convex hemispherical surface 403 of the first hemispherical portion 401. The flat surface 404 of the first hemispherical portion 401 is in contact with the first inclined surface 804. According to this structure, the first hemispherical portion 401 is rotated with respect to the first moving portion 402 such that the plane 404 of the first hemispherical portion 401 is parallel with respect to the first inclined plane 804. Thereby, the flat surface 404 can be brought into surface contact with the first inclined surface 804.
In the rope anti-slip device according to embodiment 2, the second adjusting member 5 includes the second hemispherical portion 501 and the second moving portion 502. A convex hemispherical surface 503 and a flat surface 504 are formed in the second hemispherical portion 501. A concave hemispherical surface 505 that is in surface contact with the convex hemispherical surface 503 of the second hemispherical portion 501 is formed in the second moving portion 502. The flat surface 504 of the second hemispherical portion 501 contacts the second inclined surface 805. According to this structure, the second hemispherical portion 501 rotates with respect to the second moving portion 502 such that the plane 504 of the second hemispherical portion 501 is parallel with respect to the second inclined plane 805. Thereby, the flat surface 504 can be brought into surface contact with the second inclined surface 805.
In the embodiments, the structure in which the rope protector 8 is disposed directly above the sheave 102 is described. However, the rope protector 8 may be disposed at a position deviated from a position directly above the sheave 102 in the circumferential direction of the sheave 102.
The rope anti-slip device according to the preferred embodiments has been described above, but is not limited to the rope anti-slip device according to the preferred embodiments. Various modifications and changes can be made to the rope anti-slip device according to the above embodiments without departing from the scope of the claims.
Claims (4)
1. A rope anti-drop device is provided with:
a fixing member which is provided so as to face the rope suspended on the sheave and is fixed to the hoisting machine casing;
a first adjustment member supported by the fixing member and movable relative to the fixing member in an axial direction of the sheave;
a second adjustment member supported by the fixing member and provided so as to be separated from the first adjustment member in the axial direction, the second adjustment member being movable in the axial direction with respect to the fixing member;
a first adjustment bolt provided so as to be movable with respect to the fixed member, the first adjustment member being moved in the axial direction by the movement;
a second adjustment bolt provided so as to be movable with respect to the fixed member, the second adjustment member being moved in the axial direction by the movement; and
a rope protector provided between the rope and the fixing member, supported by the fixing member via the first adjusting member and the second adjusting member,
the rope protector is formed with a first inclined surface contacting the first adjusting member and a second inclined surface contacting the second adjusting member,
by means of the first adjusting member moving, the first inclined surface is caused to move in the radial direction of the sheave by means of the first adjusting member,
the second inclined surface is moved in the radial direction by the second adjusting member.
2. The rope anti-slip device according to claim 1, wherein,
the first adjustment member has: a first hemispherical portion formed with a convex hemispherical surface and a flat surface; and a first moving part formed with a concave hemispherical surface contacting with the convex hemispherical surface of the first hemispherical part,
the plane of the first hemispherical portion is in contact with the first inclined surface.
3. The rope anti-drop apparatus according to claim 1 or 2, wherein,
the second adjusting member has: a second hemispherical portion formed with a convex hemispherical surface and a flat surface; and a second moving part formed with a concave hemispherical surface contacting with the convex hemispherical surface of the second hemispherical part,
the plane of the second hemispherical portion is in contact with the second inclined surface.
4. A gap adjustment method of a rope anti-slip device, wherein a gap between the rope and the rope protector is adjusted using the rope anti-slip device according to any one of claims 1 to 3, the gap adjustment method of the rope anti-slip device comprising:
a first step of bringing the rope protector into contact with the rope; and
and a second step of moving the first adjusting member and the second adjusting member by moving the first adjusting bolt and the second adjusting bolt, respectively, from a state where the rope protector is in contact with the rope, thereby adjusting the gap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022069850A JP7195472B1 (en) | 2022-04-21 | 2022-04-21 | ROPE STOPPING DEVICE AND GAP ADJUSTMENT METHOD FOR ROPE STOPPING DEVICE |
| JP2022-069850 | 2022-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116969291A true CN116969291A (en) | 2023-10-31 |
Family
ID=84536961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210968097.XA Pending CN116969291A (en) | 2022-04-21 | 2022-08-12 | Rope anti-drop device and clearance adjustment method for rope anti-drop device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7195472B1 (en) |
| CN (1) | CN116969291A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4772986B2 (en) | 2001-06-07 | 2011-09-14 | 三菱電機株式会社 | Elevator main rope locking device |
| JP5373679B2 (en) | 2010-03-25 | 2013-12-18 | 株式会社日立製作所 | Hoisting machine |
| CN212893394U (en) | 2020-06-22 | 2021-04-06 | 宁波欣达电梯配件厂 | Anti-falling device and traction machine |
-
2022
- 2022-04-21 JP JP2022069850A patent/JP7195472B1/en active Active
- 2022-08-12 CN CN202210968097.XA patent/CN116969291A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023159920A (en) | 2023-11-02 |
| JP7195472B1 (en) | 2022-12-23 |
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