CN115594059A - Stress adjusting mechanism for installing steel cable of mine hoist - Google Patents
Stress adjusting mechanism for installing steel cable of mine hoist Download PDFInfo
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- CN115594059A CN115594059A CN202211523626.1A CN202211523626A CN115594059A CN 115594059 A CN115594059 A CN 115594059A CN 202211523626 A CN202211523626 A CN 202211523626A CN 115594059 A CN115594059 A CN 115594059A
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- sealing
- lifting
- piston
- communicating cavity
- wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/02—Installing or exchanging ropes or cables
Abstract
The invention relates to the field of hoists, in particular to a stress adjusting mechanism for installing a steel cable of a mine hoist. The lifting assembly comprises a plurality of steel cables, and the balancing assembly comprises an upper communicating cavity, a lower communicating cavity, a plurality of sealing pistons, a plurality of connecting rods and a connecting block. The connecting block is horizontally arranged, a plurality of piston holes which penetrate through the connecting block from top to bottom are uniformly distributed on the connecting block, the upper communicating cavity is fixedly arranged at the upper end of the connecting block, and the lower communicating cavity is fixedly arranged at the lower end of the connecting block. The piston hole is communicated with the upper communicating cavity and the lower communicating cavity, each sealing piston is inserted in one piston hole in a sealing mode and can slide up and down, the connecting rods are vertically arranged, the lower end of each connecting rod is fixedly connected with the upper end of one sealing piston, and the upper end of each connecting rod extends out of the upper communicating cavity and is connected with one steel cable. The lifting frame is fixed at the lower end of the lower communicating cavity and used for placing heavy objects. A plurality of steel cables atress equipartition in the lifting process, and then make the lifting machine more stable at the in-process of lifting the heavy object to increase the security.
Description
Technical Field
The invention relates to the field of hoists, in particular to a stress adjusting mechanism for installing a steel cable of a mine hoist.
Background
The mine hoist belongs to mining machinery equipment, the hoist makes the mine construction in-process more energy-efficient, the mine hoist carries out the promotion transportation work through the equipment device of installing in well head, pit shaft and shaft bottom, and mine hoist wire rope is the important part of connecting container and hoist, transmission power, and its reliable use is the safety guarantee of lift personnel and material, and the steel cable is the weakest link of safety promotion again, should pay particular attention to.
At present often the friction type lifting machine of using many ropes in mine work, the length that the friction type lifting machine of many ropes need to guarantee the steel cable is the same, and the steel cable that is located both sides in the long-time in-process of ore deposit lifting machine takes place the deformation easily and becomes long, the difference of steel cable length can cause the stress that receives to be unbalanced, cause the damage of balanced weight system pulley and accelerate the ageing of part steel cable, influence the balanced state of lifting frame, probably cause the incident at mine work process, so need an equipment of adjusting the steel cable stress, can the safe operation with the lifting machine of guaranteeing the ore deposit machine.
Disclosure of Invention
The invention provides a stress adjusting mechanism for installing a steel cable of a mine hoist, which aims to solve the problem of unstable lifting caused by aging of the steel cable in the lifting process of the existing lifting machine.
The invention relates to a stress adjusting mechanism for installing a steel cable of a mine hoist, which adopts the following technical scheme:
a stress adjusting mechanism for installing a steel cable of a mine hoist comprises a lifting assembly, a balancing assembly and a lifting frame; the lifting assembly comprises a plurality of steel cables; the balance assembly comprises an upper communicating cavity, a lower communicating cavity, a plurality of sealing pistons, a plurality of connecting rods and a connecting block; the connecting block is horizontally arranged, and a plurality of piston holes which penetrate through the connecting block up and down are uniformly distributed on the connecting block; the upper communicating cavity is fixedly arranged at the upper end of the connecting block; the lower communicating cavity is fixedly arranged at the lower end of the connecting block; the piston hole is communicated with the upper communicating cavity and the lower communicating cavity; each sealing piston is inserted in one piston hole in a sealing manner and can slide up and down; the connecting rods are vertically arranged, the lower end of each connecting rod is fixedly connected with the upper end of one sealing piston, and the upper end of each connecting rod extends out of the upper communication cavity and is connected with one steel cable; the lifting frame is fixed at the lower end of the lower communicating cavity and used for placing heavy objects.
Further, a sealing ring is arranged in the piston hole; the sealing ring can be sleeved on the connecting rod in a vertically sliding manner; the sealing ring is provided with a sealing hole which penetrates through the sealing ring up and down; the piston hole is internally and fixedly provided with a seal, and the sealing plug is positioned between the sealing ring and the sealing piston so as to be inserted into the sealing hole in a sealing manner when the sealing ring slides downwards along the piston hole for a preset distance.
Furthermore, a telescopic stop block is arranged in the piston hole; the telescopic stop block is a wedge block and can be telescopically arranged on the peripheral wall of the piston hole along the radial direction of the piston hole; the retractable stop block is in an extending state in an initial state, and the upper inclined plane of the retractable stop block is in contact with the lower surface of the sealing ring.
Furthermore, a plurality of compensation rods are arranged in the lower communication cavity; the upper end of each compensation rod is connected with the lower end of the sealing piston, and the lower end of each compensation rod extends out of the lower communicating cavity downwards.
Further, the lifting assembly comprises a first lifting wheel and a second lifting wheel; the first lifting wheel and the second lifting wheel are rotatably arranged; a plurality of ring grooves are formed in the first lifting wheel and the second lifting wheel; the second lifting wheel is positioned above the balance assembly; each steel cable is sequentially arranged in one annular groove of the first lifting wheel and the second lifting wheel.
Furthermore, the lifting assembly also comprises a counterweight wheel, a balance tail rope and a counterweight block; the counterweight wheel is rotatably arranged; the counterweight wheel and the first lifting wheel have the same structure; the counterweight block is positioned below the counterweight wheel; each steel cable is arranged in one sliding chute of the counterweight wheel and is fixedly connected with the counterweight block; one section of balanced tail rope is connected with the balancing weight, and the other end is connected with the lifting frame.
Furthermore, the upper end of the connecting rod is provided with a connecting ring; the steel cable passes through the connecting ring and is fixedly connected with the connecting rod.
Furthermore, a self-locking buckle is arranged on the steel cable; the self-locking buckle is used for bending the part of the steel cable passing through the connecting ring to form a knot and fixing the knot.
The beneficial effects of the invention are: the stress adjusting mechanism for installing the steel cable of the mine hoist is provided with the lifting assembly, the balancing assembly and the lifting frame, and the upper communicating cavity and the lower communicating cavity are filled with hydraulic oil. When one of the steel cables is deformed due to long-time work, the upward pulling force of the rest steel cables on the sealing piston is increased, and the sealing pistons on the rest steel cables move upwards along the corresponding piston holes. The sealing piston corresponding to the deformed and lengthened steel cable is driven to slide downwards in the lower communicating cavity due to the fact that the volume of the lower communicating cavity is kept unchanged, the steel cable at the deformed position is in a tightened state again, and therefore the steel cables are uniformly stressed, the lifting machine is more stable in the process of lifting the heavy object, and safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a tension adjustment mechanism for a mine hoist cable installation of the present invention;
FIG. 2 is a schematic structural view of another perspective of an embodiment of a tension adjustment mechanism for a mine hoist cable installation of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a front elevational view of an embodiment of a tension adjustment mechanism for a mine hoist cable installation in accordance with the present invention;
FIG. 5 is a partial enlarged view of the portion B in FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 4 at C;
FIG. 7 is an enlarged view of a portion of FIG. 4 at D;
in the figure: 111. a weight wheel; 112. a second lifting wheel; 113. a first lifting wheel; 120. a wire rope; 130. a balancing weight; 140. lifting the frame; 141. an upper communicating cavity; 142. a lower communicating cavity; 144. a sealing plug; 145. a piston bore; 151. self-locking; 160. a connecting rod; 161. a connecting ring; 162. a sealing piston; 163. a compensation lever; 171. a telescopic stop block; 172. a tension spring; 180. a seal ring; 190. balancing the tail rope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the stress adjustment mechanism for installation of a mine hoist wire rope 120 of the present invention, as shown in fig. 1-7, a stress adjustment mechanism for installation of a mine hoist wire rope 120, comprises a lifting assembly, a balancing assembly and a lifting frame 140; the lifting assembly includes a plurality of wires 120, and the plurality of wires 120 are synchronously raised or lowered for raising or lowering the weight. The balance assembly comprises an upper communication chamber 141, a lower communication chamber 142, a plurality of sealing pistons 162, a plurality of connecting rods 160 and a connecting block; the connecting block is cuboid cubic, and the connecting block level sets up, and the equipartition has a plurality of piston holes 145 that run through from top to bottom on the connecting block, (as shown in fig. 4) the quantity of piston hole 145 be 4, and four piston holes 145 turn right from a left side and equipartition in proper order, and piston hole 145 is the circular port. The upper communicating cavity 141 is fixedly arranged at the upper end of the connecting block; the lower communicating cavity 142 is fixedly arranged at the lower end of the connecting block, the upper communicating cavity 141 and the lower communicating cavity 142 are rectangular parallelepiped cavities, hydraulic oil is filled in the upper communicating cavity 141 and the lower communicating cavity 142, and the piston hole 145 is communicated with the upper communicating cavity 141 and the lower communicating cavity 142. Each sealing piston 162 is sealingly inserted into one of the piston bores 145 and is slidable up and down such that when one or more sealing pistons 162 slide up or down, hydraulic oil will move the one or more sealing pistons 162 down or up.
The connecting rods 160 are vertically arranged, the lower end of each connecting rod 160 is fixedly connected with the upper end of one sealing piston 162, the upper end of each connecting rod 160 extends out of the upper communicating cavity 141 and is connected with one steel cable 120, the connecting rods 160 can slide up and down and are hermetically inserted in the upper communicating cavities 141, so that the steel cables 120 are connected with the sealing pistons 162 through the connecting rods 160, when one steel cable 120 is deformed due to long-time work, the upward tensile force of the other three steel cables 120 on the sealing pistons 162 is increased, the three sealing pistons 162 move upwards along the corresponding piston holes 145, the volume of the three sealing pistons 162 is kept unchanged in the lower communicating cavity 142, the sealing pistons 162 corresponding to the deformed and lengthened steel cables 120 are driven to slide downwards, the steel cables 120 at the deformed positions are in a tightened state again, and then the plurality of steel cables 120 are stressed uniformly. The lifting frame 140 is fixed at the lower end of the lower communicating cavity 142 and used for placing a heavy object, the lifting frame 140 is of a rectangular frame structure, and the bottom of the lifting frame 140 is used for placing a table and placing the heavy object.
In this embodiment, as shown in fig. 5, a sealing ring 180 is disposed in the piston hole 145, the sealing ring 180 is slidably sleeved on the connecting rod 160, and the sealing ring 180 is in sealing contact with the inner wall of the piston hole 145. The sealing ring 180 is provided with two sealing holes which penetrate through from top to bottom, and specifically, the number of the sealing holes is two, and the area of each sealing hole is far smaller than that of the sealing ring 180, so that when the hydraulic oil of the upper communicating cavity 141 has downward thrust, the sealing ring 180 can be pushed to slide downwards. The sealing plugs 144 are fixedly arranged in the piston hole 145, the sealing plugs 144 are located between the sealing rings 180 and the sealing pistons 162, so that when the sealing rings 180 slide downwards along the piston hole 145 for a preset distance, the sealing plugs 144 are inserted into the sealing holes in a sealing mode, specifically, the number of the sealing plugs 144 is two, fixing rods symmetrically arranged are arranged between the sealing rings 180 and the sealing pistons 162, the fixing rods are arranged in the radial direction of the piston hole 145 and fixedly connected with the piston hole 145, and each sealing piston 162 is fixedly arranged on one fixing rod. The sealing plug 144 is conical with a small top and a large bottom for easy insertion into the sealing hole. Each sealing plug 144 is provided with a guiding rod, the lower end of the guiding rod is vertically arranged and fixedly connected to the axis of the sealing plug 144, the upper end of the guiding rod upwards extends out of the sealing hole, and the guiding rod is used for guiding the sealing hole to fall on the sealing plug 144.
A telescopic stop block 171 is arranged in the piston hole 145; the expansion stopper 171 is a wedge which is attached to the circumferential wall of the piston hole 145 so as to be expandable and contractible in the radial direction of the piston hole 145. Specifically, a telescopic groove is formed in the inner wall of the piston hole 145, the telescopic groove extends along the radial direction of the piston hole 145, the telescopic stopper 171 is slidably inserted into the telescopic groove, a telescopic spring 172 is arranged between the telescopic groove and the telescopic stopper 171, the telescopic spring 172 enables the telescopic stopper 171 to be in an initial state in a state of extending out of the telescopic groove, and an upper inclined surface of the telescopic stopper 171 contacts with the lower surface of the sealing ring 180. The telescopic stopper 171 supports the sealing ring 180, and when the downward thrust applied to the sealing ring 180 reaches a predetermined value, the sealing ring 180 compresses the telescopic stopper 171 into the telescopic groove.
In this embodiment, as shown in fig. 4 and 7, a plurality of compensation rods 163 are disposed in the lower communication chamber 142, an upper end of each compensation rod 163 is connected to a lower end of the sealing piston 162, a lower end of each compensation rod 163 extends downward out of the lower communication chamber 142, the compensation rods 163 are connected to the lower communication chamber 142 in a sealing manner, and the compensation rods 163 can slide up and down on the lower communication chamber 142. The compensation rod 163, which is provided below the sealing piston 162, can be used to compensate for the change in the entire volume of the upper communication chamber 141 and the lower communication chamber 142 caused by the upward movement of the connecting rod 160.
In this embodiment, as shown in fig. 1 to 2, the lifting assembly includes a first lifting wheel 113 and a second lifting wheel 112. The first lifting wheel 113 and the second lifting wheel 112 are rotatably provided; the first lifting wheel 113 and the second lifting wheel 112 are provided with a plurality of ring grooves, and each ring groove is internally provided with a friction washer to increase the friction force between the steel cable 120 and the ring groove. The second lift wheel 112 is located above the counterbalance assembly. Each steel cable 120 is sequentially installed in one annular groove of the first lifting wheel 113 and the second lifting wheel 112, the first lifting wheel 113 rotates to drive the contraction and release of the steel cable 120, and the heavy object is lifted or dropped through the second lifting wheel 112. The lifting assembly further comprises a weight wheel 111, a balancing tail rope 190 and a counterweight 130. The weight wheel 111 is rotatably disposed, and the weight wheel 111 and the first lifting wheel 113 have the same structure. The counterweight block 130 is located below the counterweight wheel 111, each steel cable 120 is installed in a chute of the counterweight wheel 111 and is fixedly connected with the counterweight block 130, one section of the balance tail rope 190 is connected with the counterweight block 130, and the other end is connected with the lifting frame 140.
In this embodiment, as shown in fig. 3, the upper end of the connecting rod 160 is provided with a connecting ring 161, and the steel cable 120 passes through the connecting ring 161 and is fixedly connected with the connecting rod 160. The steel cable 120 is provided with a self-locking buckle 151, and the self-locking buckle 151 is used for bending the part of the steel cable 120 passing through the connecting ring 161 to form a knot and fixing the knot.
When the lifting frame is in use, a heavy object to be lifted is placed in the lifting frame 140, the first lifting wheel 113 is opened, the first lifting wheel 113 rotates, and the lifting frame 140 is driven to be lifted upwards under the action of the steel cable 120 and the second lifting wheel 112. During the process of lifting the lifting frame 140 upwards, the steel cable 120 on the corresponding weight wheel 111 is released, so that the counterweight 130 moves downwards, and the lifting force of the lifting frame 140 upwards is provided by the steel cable 120.
When one of the cables 120 is deformed to a longer length, the tension on the remaining cables 120 increases, causing its corresponding sealing piston 162 to move upward within the piston bore 145. In the lower communicating chamber 142, when the remaining sealing pistons 162 are driven by the cable 120 to move upwards, in order to keep the volume in the lower communicating chamber 142 unchanged, the sealing piston 162 corresponding to the deformed cable 120 moves downwards, so that the deformed cable 120 is in a tightened state and has the same stress as the remaining cable 120.
When the sealability of the corresponding sealing piston 162 of one of the cables 120 is deteriorated, the tensile force applied to the remaining cables 120 is increased, causing the corresponding sealing piston 162 to move upward in the piston hole 145. Because the sealing performance of one of the sealing pistons 162 is deteriorated, the sealing pistons 162 corresponding to the rest of the steel cables 120 do not drive the sealing piston 162 with poor sealing to move downwards in the upward movement process, and meanwhile, in order to keep the volume of the upper communicating cavity 141 unchanged, the sealing ring 180 at the upper end of the sealing piston 162 with poor sealing performance is pushed downwards, the downward pushing force applied to the sealing ring 180 is larger than a preset value, and the sealing ring 180 breaks through the telescopic stop dog 171 until the sealing holes on the sealing plug 144 and the sealing ring 180 are sealed, so that the sealing effect at the position with deteriorated sealing performance is achieved, and all the steel cables 120 are restored to the state with the same stress, and normal operation is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a stress adjustment mechanism for installation of mine winder steel cable which characterized in that: the method comprises the following steps:
a lifting assembly comprising a plurality of steel cables;
the balance assembly comprises an upper communication cavity, a lower communication cavity, a plurality of sealing pistons, a plurality of connecting rods and a connecting block; the connecting block is horizontally arranged, and a plurality of piston holes which penetrate through the connecting block up and down are uniformly distributed on the connecting block; the upper communicating cavity is fixedly arranged at the upper end of the connecting block; the lower communicating cavity is fixedly arranged at the lower end of the connecting block; the piston hole is communicated with the upper communicating cavity and the lower communicating cavity; each sealing piston is inserted in one piston hole in a sealing manner and can slide up and down; the connecting rods are vertically arranged, the lower end of each connecting rod is fixedly connected with the upper end of one sealing piston, and the upper end of each connecting rod extends out of the upper communication cavity and is connected with one steel cable;
the lifting frame is fixed at the lower end of the lower communicating cavity and used for placing a heavy object.
2. The tension adjustment mechanism for a mine hoist cable installation of claim 1, wherein:
a sealing ring is arranged in the piston hole; the sealing ring can be sleeved on the connecting rod in a vertically sliding manner; the sealing ring is provided with a sealing hole which penetrates through the sealing ring up and down; the piston hole is internally and fixedly provided with a seal, and the sealing plug is positioned between the sealing ring and the sealing piston so as to be inserted into the sealing hole in a sealing manner when the sealing ring slides downwards along the piston hole for a preset distance.
3. The tension adjustment mechanism for a mine hoist cable installation of claim 2, wherein:
a telescopic stop block is arranged in the piston hole; the telescopic stop block is a wedge block and can be telescopically arranged on the peripheral wall of the piston hole along the radial direction of the piston hole; the retractable stop block is in an extending state in an initial state, and the upper inclined plane of the retractable stop block is in contact with the lower surface of the sealing ring.
4. A tension adjustment mechanism for a mine hoist cable installation as claimed in claim 1, wherein:
a plurality of compensation rods are arranged in the lower communication cavity; the upper end of each compensation rod is connected with the lower end of the sealing piston, and the lower end of each compensation rod extends out of the lower communicating cavity downwards.
5. A tension adjustment mechanism for a mine hoist cable installation as claimed in claim 1, wherein:
the lifting assembly comprises a first lifting wheel and a second lifting wheel; the first lifting wheel and the second lifting wheel are rotatably arranged; a plurality of ring grooves are formed in the first lifting wheel and the second lifting wheel; the second lifting wheel is positioned above the balance assembly; each steel cable is sequentially arranged in one ring groove of the first lifting wheel and the second lifting wheel.
6. A tension adjustment mechanism for a mine hoist cable installation as claimed in claim 5, wherein:
the lifting assembly also comprises a counterweight wheel, a balance tail rope and a counterweight block; the counterweight wheel is rotatably arranged; the counterweight wheel and the first lifting wheel have the same structure; the counterweight block is positioned below the counterweight wheel; each steel cable is arranged in one sliding chute of the counterweight wheel and is fixedly connected with the counterweight block; one section of balanced tail rope is connected with the balancing weight, and the other end is connected with the lifting frame.
7. A tension adjustment mechanism for a mine hoist cable installation as claimed in claim 1, wherein:
the upper end of the connecting rod is provided with a connecting ring; the steel cable passes through the connecting ring and is fixedly connected with the connecting rod.
8. A tension adjustment mechanism for a mine hoist cable installation as claimed in claim 7, wherein:
the steel cable is provided with a self-locking buckle; the self-locking buckle is used for bending the part of the steel cable passing through the connecting ring to form a knot and fixing the knot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211523626.1A CN115594059A (en) | 2022-12-01 | 2022-12-01 | Stress adjusting mechanism for installing steel cable of mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211523626.1A CN115594059A (en) | 2022-12-01 | 2022-12-01 | Stress adjusting mechanism for installing steel cable of mine hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115594059A true CN115594059A (en) | 2023-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211523626.1A Pending CN115594059A (en) | 2022-12-01 | 2022-12-01 | Stress adjusting mechanism for installing steel cable of mine hoist |
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| CN (1) | CN115594059A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB679018A (en) * | 1949-03-25 | 1952-09-10 | Boulton Aircraft Ltd | Improvements in and relating to seals for fluid operated jacks and the like |
| GB919768A (en) * | 1960-03-22 | 1963-02-27 | Reliance Rope Attachment Compa | Improvements in or relating to rope tensioning devices |
| JPH07206319A (en) * | 1994-01-13 | 1995-08-08 | Mitsubishi Denki Bill Techno Service Kk | Automatic tension adjusting device for main rope |
| JPH07232876A (en) * | 1994-02-23 | 1995-09-05 | Toshiba Corp | Elevator car suspending mechanism |
| KR20010088888A (en) * | 2001-02-05 | 2001-09-29 | 최정두 | Rope tension equalizer of rope type elevator |
| CN109693990A (en) * | 2017-10-20 | 2019-04-30 | 奥的斯电梯公司 | Lift rope rope head fixing device and the elevator system using it |
| CN210265645U (en) * | 2019-06-21 | 2020-04-07 | 庆安集团有限公司 | Hydraulic buffer |
-
2022
- 2022-12-01 CN CN202211523626.1A patent/CN115594059A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB679018A (en) * | 1949-03-25 | 1952-09-10 | Boulton Aircraft Ltd | Improvements in and relating to seals for fluid operated jacks and the like |
| GB919768A (en) * | 1960-03-22 | 1963-02-27 | Reliance Rope Attachment Compa | Improvements in or relating to rope tensioning devices |
| JPH07206319A (en) * | 1994-01-13 | 1995-08-08 | Mitsubishi Denki Bill Techno Service Kk | Automatic tension adjusting device for main rope |
| JPH07232876A (en) * | 1994-02-23 | 1995-09-05 | Toshiba Corp | Elevator car suspending mechanism |
| KR20010088888A (en) * | 2001-02-05 | 2001-09-29 | 최정두 | Rope tension equalizer of rope type elevator |
| CN109693990A (en) * | 2017-10-20 | 2019-04-30 | 奥的斯电梯公司 | Lift rope rope head fixing device and the elevator system using it |
| CN210265645U (en) * | 2019-06-21 | 2020-04-07 | 庆安集团有限公司 | Hydraulic buffer |
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