CN209740458U - device for automatically balancing tension of steel wire rope of elevator - Google Patents
device for automatically balancing tension of steel wire rope of elevator Download PDFInfo
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- CN209740458U CN209740458U CN201920483405.3U CN201920483405U CN209740458U CN 209740458 U CN209740458 U CN 209740458U CN 201920483405 U CN201920483405 U CN 201920483405U CN 209740458 U CN209740458 U CN 209740458U
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Abstract
The utility model discloses an automatic tensile device of balanced elevator wire rope, seal oil circuit, hollow pneumatic cylinder and wire rope including base, passive hydraulic pressure, hollow pneumatic cylinder is a plurality of, the cylinder body of hollow pneumatic cylinder is all fixed on the base, hollow pneumatic cylinder all with same passive hydraulic pressure seals oil circuit intercommunication, one wire rope wears to establish one in the hollow piston rod of hollow pneumatic cylinder, wire rope with hollow piston rod fixed connection. The utility model discloses make the tension automatic balance between the wire rope, improve the comfort of taking and extension driving sheave of elevator and hang wire rope's life.
Description
Technical Field
The utility model relates to an elevator equipment technical field especially relates to an automatic tensile device of balanced elevator wire rope.
Background
along with the high-speed development of the Chinese urbanization process, high-rise buildings are rapidly increased, the number of elevators is rapidly increased, the steel wire ropes of the elevators are used as important parts of the elevators, the steel wire ropes are suspended to bear the weight of a lift car, a counterweight and passengers, and are dragged to move up and down by friction of a traction wheel, in order to ensure enough safety factor, the number of the traction steel wire ropes of one elevator is generally more than 4, and the tension of the steel wire ropes is uneven due to the following two reasons: 1) the static tension of the wire rope basis is inconsistent when the elevator is installed. 2) After the elevator is put into use for a period of time, the structural elongation of each steel wire rope is inconsistent. The uneven phenomenon of wire rope's tension is especially serious on high-rise, high-speed elevator, wire rope tension inequality can make wire rope and tow the wearing and tearing between the race uneven, the accumulation of uneven wearing and tearing can cause the pitch circle diameter difference increase of each wheel groove of towing, wire rope and the relative slip aggravation of towing the race, thereby further strengthen the wearing and tearing of towing the race again, and then lead to relative slip to increase again, vicious circle, the elevator can influence the riding comfort because of the vibration and the noise that slide and produce, wire rope or the life who tows the sheave also will reduce greatly.
The tension condition of the elevator steel wire rope is an important project for the overall quality of the elevator, but the tension is not clearly required by the existing GB 7588 + 2003 elevator manufacturing and installation safety specification and the newly revised TSG T7001-2009 elevator supervision inspection and periodic inspection rule-traction type and forced drive elevator, and the 5.5.1.9 requirements of GB/T10060-2011 elevator installation acceptance specification are as follows: "at least one end of the suspension steel cable or chain should be provided with an automatic adjusting device for balancing the tension between the ropes or chains, and the deviation between the tension of any one rope or chain and the average value of the tensions of all the ropes or chains is not more than 5%. If a spring is used to balance the tension, the spring should operate in compression. The steel wire rope adjusting devices of most of the prior elevators reflect the tension condition of the corresponding steel wire ropes according to the deformation degree of compression springs, maintenance personnel can check and adjust the tension of the steel wire ropes through daily maintenance, but cannot realize the automatic adjustment of the tension of the steel wire ropes, the tension adjustment of the steel wire ropes is not simple, the tension adjusting devices are arranged at two ends of one steel wire rope on the elevator with the traction ratio of 2: 1, technicians with abundant experience need to repeat for a plurality of times to realize a better effect, if the condition difference of partial traction sheave abrasion caused by neglecting the tension unevenness in the early stage is large, the tension of the steel wire ropes is difficult to achieve the satisfactory effect again through adjustment, the steel wire rope tension adjusting devices are optimized, and the problem that the tension of the steel wire ropes is solved from the aspect of product design is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic tensile device of balanced elevator wire rope to solve the problem that above-mentioned prior art exists, make the tension automatic balance between the wire rope, improve taking comfort and the extension driving sheave of elevator and hang wire rope's life.
In order to achieve the above object, the utility model provides a following scheme:
The utility model provides an automatic tensile device of balanced elevator wire rope, seal oil circuit, hollow pneumatic cylinder and wire rope including base, passive hydraulic pressure, hollow pneumatic cylinder is a plurality of, the cylinder body of hollow pneumatic cylinder is all fixed on the base, hollow pneumatic cylinder all with same passive hydraulic pressure seals oil circuit intercommunication, one wire rope wears to establish one in the hollow piston rod of hollow pneumatic cylinder, wire rope with hollow piston rod fixed connection.
preferably, the base is of a double-layer structure and comprises an upper plate and a lower plate, the upper plate and the lower plate are fixedly connected through a plurality of supporting rods, the upper plate is provided with a mounting hole matched with the cylinder body, a through hole is formed in the middle of the lower plate, and the steel wire rope penetrates through the through hole and is fixedly connected with the hollow piston rod.
Preferably, the connecting end of the steel wire rope and the rope head screw rod is fixedly connected, the rope head screw rod penetrates through the hollow piston rod, a rope head nut is arranged at the adjusting end of the rope head screw rod, and an elastic component is arranged between the rope head nut and the hollow piston rod.
Preferably, the elastic component is a compression spring, the compression spring is sleeved on the rope end screw rod, and two ends of the compression spring are respectively abutted against the rope end nut and the hollow piston rod.
Preferably, a rope end taper sleeve is arranged between the steel wire rope and the rope end screw rod, the connecting end of the rope end screw rod is fixed at the upper end of the rope end taper sleeve through a nut, and the steel wire rope is fixedly connected at the lower end of the rope end taper sleeve.
Preferably, the hollow hydraulic cylinder is communicated with the passive hydraulic closed oil way through an oil pipe respectively, and stop valves are arranged on the oil pipes.
Preferably, a pipe joint is arranged on the passive hydraulic closed oil way, and the passive hydraulic closed oil way can be pressurized or decompressed through the pipe joint.
preferably, the hollow hydraulic cylinders are respectively positioned in a horizontal plane or two horizontal planes with different heights.
The utility model discloses for prior art gain following technological effect:
the utility model discloses with wire rope and hollow piston rod fixed connection to with the hollow pneumatic cylinder of a plurality of and same passive hydraulic pressure closed oil circuit intercommunication, when the hollow piston rod up-and-down motion of wire rope pulling, simultaneously because every pneumatic cylinder seals the oil circuit with same passive hydraulic pressure and forms closed loop, inside pressure everywhere equals, therefore hollow piston rod can automatic adjustment, finally makes wire rope's tension automatic reach equal, thereby has reached the utility model discloses tension automatic balance's purpose between the wire rope helps improving taking comfort and extension driving sheave and hanging wire rope's life of elevator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 the device for automatically balancing the tension of the steel wire rope of the elevator of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
FIG. 3 is a partial enlarged view of the passive hydraulic closed oil path of the present invention;
FIG. 4 is a hydraulic schematic diagram of the present invention;
Wherein: the hydraulic control system comprises a rope head screw 1, a rope head nut 2, a compression spring 3, a hollow piston rod 4, a hollow hydraulic cylinder 5, an oil pipe 6, a rope head taper sleeve 7, a passive hydraulic closed oil way 8, a steel wire rope 9, a lower plate 10, an upper plate 11, a pipe joint 12 and a stop valve 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-4: the embodiment provides a device for automatically balancing tension of a steel wire rope 9 of an elevator, which comprises a base, a passive hydraulic closed oil way 8, a plurality of hollow hydraulic cylinders 5, three hollow hydraulic cylinders 5 selected in the embodiment, and steel wire ropes 9, wherein the cylinders of the hollow hydraulic cylinders 5 are all fixed on the base, specifically, the base is of a double-layer structure and comprises an upper plate 11 and a lower plate 10, the upper plate 11 and the lower plate 10 are fixedly connected through a plurality of support rods, as shown in fig. 1 and 3, four support rods are arranged at four corners of an upper plate 11 and a lower plate 10, the upper plate 11 and the lower plate 10 are connected to form a frame, a mounting hole matched with a cylinder body is formed in the upper plate 11, a steel wire rope 9 can penetrate through the mounting hole to suspend other parts of an elevator, a through hole is formed in the middle of the lower plate 10, the steel wire rope 9 penetrates through the through hole to be fixedly connected with a hollow piston rod 4, and a passive hydraulic closed oil path 8 can be fixed on the lower plate 10. The hollow hydraulic cylinders 5 are communicated with the same passive hydraulic closed oil way 8, a steel wire rope 9 penetrates through the hollow piston rod 4 of the hollow hydraulic cylinder 5, and the steel wire rope 9 is fixedly connected with the hollow piston rod 4. This embodiment is with wire rope 9 and hollow piston rod 4 fixed connection to with the hollow pneumatic cylinder 5 of a plurality of and same passive hydraulic pressure closed oil circuit 8 intercommunication, move about 4 when wire rope 9 pulling hollow piston rod, simultaneously because every pneumatic cylinder seals oil circuit 8 with same passive hydraulic pressure and forms closed circuit, pressure everywhere equals in the same hydraulic pressure closed circuit, therefore hollow piston rod 4 can automatic adjustment, finally make wire rope 9's tension automatic reach equal, concrete hydraulic principle is shown in figure 4, thereby reached the utility model discloses tension automatic balance's purpose between wire rope 9 can effectively improve the comfort of taking of elevator, guarantees to prolong the service life of driving sheave and suspension wire rope 9 even, reduces the social property waste that driving sheave and wire rope 9 caused because too early replacement is repaired.
Wire rope 9 and fag end screw rod 1's link fixed connection, it is concrete, be equipped with fag end taper sleeve 7 between wire rope 9 and the fag end screw rod 1, the link of fag end screw rod 1 utilizes the nut to fix in fag end taper sleeve 7's upper end, wire rope 9 fixed connection is at fag end taper sleeve 7's lower extreme, utilizes fag end taper sleeve 7 can be with wire rope 9 firm in connection, prevents to drop or slide. Rope end screw rod 1 wears to establish in hollow piston rod 4, and rope end nut 2 is equipped with to the regulation end of rope end screw rod 1, is equipped with elastomeric element between rope end nut 2 and hollow piston rod 4. The elastic component is preferably a compression spring 3, the compression spring 3 is sleeved on the rope end screw rod 1, and two ends of the compression spring 3 are respectively abutted against the rope end nut 2 and the hollow piston rod 4. The compression spring 3 serves two functions: 1) and when the elevator is suddenly stopped, the impact can be reduced, the vibration is reduced, and the defect that the passive hydraulic pressure seals the oil way 8 is overcome. 2) The height of the compression spring 3 reflects the tension of the corresponding steel wire rope 9, the tension of the steel wire rope 9 is equal if the heights are the same, and whether the passive hydraulic closed oil way 8 is blocked or not can be known through observation to influence the automatic adjustment of the tension of the steel wire rope 9.
The hollow hydraulic cylinder 5 is respectively communicated with the passive hydraulic closed oil way 8 through an oil pipe 6, and the oil pipe 6 is provided with a stop valve 13. The passive hydraulic closed oil way 8 is provided with a pipe joint 12, and the passive hydraulic closed oil way 8 can be pressurized or decompressed through the pipe joint 12. Under the normal condition, stop valve 13 is all in the state of opening, if a certain wire rope 9 needs to be truncated or changed, can close the stop valve 13 who corresponds oil pipe 6, insert the force (forcing) pump in coupling 12 department, pour into pressure oil into, hollow piston rod 4 of other hollow pneumatic cylinder 5 stretches out and jacking wire rope 9 bears whole load, hollow piston rod 4 of hollow pneumatic cylinder 5 that corresponds stop valve 13 and close is motionless, and wire rope 9 connected with it only bears self weight, at this moment just can conveniently carry out truncation or change work of wire rope 9, after the work is accomplished, open stop valve 13, adjust the hydraulic pressure oil mass of whole passive hydraulic pressure closed oil circuit 8.
The specific hydraulic principle, pascal's law: the pressure change occurring in a certain part of the stationary fluid in the closed vessel will be transmitted in all directions with constant magnitude. In fig. 4, F1, F2, and F3 represent the tension borne by three steel cables 9, the three hollow hydraulic cylinders 5 are fixed, the ends of the steel cables 9 are connected to the hollow piston rods 4 of the hollow hydraulic cylinders 5, rod cavities (high pressure cavities) of the steel cables are connected through pipelines to form a passive hydraulic closed circuit, P1, P2, and P3 are the pressures in the three hollow hydraulic cylinders 5, a1, a2, and A3 are the cross-sectional areas of the rod cavities of the three hollow hydraulic cylinders 5, F1 — P9 × a 6862, F2 — P2 × a2, F3 — P3 × A3, ideally, the lengths of the three steel cables 9 of the elevator are the same, P1 — P1, the models of the three hollow hydraulic cylinders 5 are the same, a1 — F1, and the three steel cables 9 maintain the same tension; if the later structural deformation of the three steel wire ropes 9 is different under the condition of the same tension, one of the steel wire ropes 9 extends more, the piston rods of the hollow hydraulic cylinders 5 move upwards for adjustment, the three hollow hydraulic cylinders 5 are connected through pipelines to form a passive hydraulic closed loop, the piston rods of the other two hollow hydraulic cylinders 5 move downwards for adjustment, after the adjustment is in place, the pressure of rod cavities of the three hollow hydraulic cylinders 5 are still equal (P1-P2-P3), and the tensions of the three steel wire ropes 9 are automatically adjusted to achieve equal balance (F1-F2-F3).
in addition, as shown in fig. 2, in the process of adjusting the tension of the steel wire rope 9, the extension length of the hollow piston rod 4 is L, the extension length of the hollow piston rod 4 is limited by the structure of the hollow hydraulic cylinder 5, and if the L of the corresponding steel wire rope 9 is too large compared with the other steel wire ropes 9 and exceeds the extension length limit of the hollow piston rod 4, the automatic tension adjustment of the steel wire rope 9 fails. And this embodiment D is the position size of fixation nut, and the 9 tension of wire rope also can be adjusted through the size that changes D, when piston rod extension length was about to reach the limit, adjustment fag end nut 2 position D, increase D can reduce L, slows down the arrival of piston rod extension length limit. In this embodiment, an infrared sensor may be further disposed on the head screw 1, the infrared sensor is electrically connected to the alarm device of the elevator, the distance from the infrared sensor to the upper surface of the cylinder body of the hollow hydraulic cylinder 5 is H, the limit value of the extension length of the hollow piston rod 4 is L1, and H is L1, when the extension length of the hollow piston rod 4 reaches the limit value, an alarm may be given to remind the elevator maintenance staff of performing artificial adjustment of the position of the head nut 2, but the D value is limited by the structure, and when both the D value and the L value are about to reach the limit value, the wire rope 9 needs to be shortened.
In addition, the hollow hydraulic cylinders 5 can be respectively positioned in a horizontal plane, and due to the limitation of the size of the hollow hydraulic cylinders 5, the hollow hydraulic cylinders 5 can also be arranged in two horizontal planes with different heights when the hollow hydraulic cylinders 5 are difficult to arrange on the same horizontal plane according to the requirement of installation space.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides an automatic tensile device of balanced elevator wire rope which characterized in that: the hydraulic cylinder is characterized by comprising a base, a passive hydraulic closed oil way, a plurality of hollow hydraulic cylinders and a steel wire rope, wherein the cylinder bodies of the hollow hydraulic cylinders are fixed on the base, the hollow hydraulic cylinders are communicated with the same passive hydraulic closed oil way, one steel wire rope penetrates through a hollow piston rod of one hollow hydraulic cylinder, and the steel wire rope is fixedly connected with the hollow piston rod.
2. The apparatus of claim 1 for automatically balancing elevator rope tension, wherein: the base is of a double-layer structure and comprises an upper plate and a lower plate, the upper plate and the lower plate are fixedly connected through a plurality of supporting rods, the upper plate is provided with mounting holes matched with the cylinder body, a through hole is formed in the middle of the lower plate, and the steel wire rope penetrates through the through hole and is fixedly connected with the hollow piston rod.
3. The apparatus of claim 1 for automatically balancing elevator rope tension, wherein: the rope is fixedly connected with the connecting end of the rope head screw rod, the rope head screw rod penetrates through the hollow piston rod, a rope head nut is arranged at the adjusting end of the rope head screw rod, and an elastic component is arranged between the rope head nut and the hollow piston rod.
4. The apparatus of claim 3, wherein the means for automatically balancing elevator rope tension comprises: the elastic component is a compression spring, the compression spring is sleeved on the rope end screw rod, and two ends of the compression spring are respectively abutted to the rope end nut and the hollow piston rod.
5. The apparatus of claim 3, wherein the means for automatically balancing elevator rope tension comprises: a rope end taper sleeve is arranged between the steel wire rope and the rope end screw rod, the connecting end of the rope end screw rod is fixed at the upper end of the rope end taper sleeve through a nut, and the steel wire rope is fixedly connected at the lower end of the rope end taper sleeve.
6. The apparatus of claim 1 for automatically balancing elevator rope tension, wherein: the hollow hydraulic cylinder is communicated with the passive hydraulic closed oil way through an oil pipe respectively, and stop valves are arranged on the oil pipes.
7. The apparatus of claim 1 for automatically balancing elevator rope tension, wherein: and a pipe joint is arranged on the passive hydraulic closed oil way, and the passive hydraulic closed oil way can be pressurized or decompressed through the pipe joint.
8. The apparatus of claim 1 for automatically balancing elevator rope tension, wherein: the hollow hydraulic cylinders are respectively positioned in a horizontal plane or two horizontal planes with different heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483405.3U CN209740458U (en) | 2019-04-11 | 2019-04-11 | device for automatically balancing tension of steel wire rope of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483405.3U CN209740458U (en) | 2019-04-11 | 2019-04-11 | device for automatically balancing tension of steel wire rope of elevator |
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| Publication Number | Publication Date |
|---|---|
| CN209740458U true CN209740458U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920483405.3U Expired - Fee Related CN209740458U (en) | 2019-04-11 | 2019-04-11 | device for automatically balancing tension of steel wire rope of elevator |
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| Country | Link |
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| CN (1) | CN209740458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758785A (en) * | 2021-01-21 | 2021-05-07 | 永大电梯设备（中国）有限公司 | Elevator rope head device |
| WO2023132802A1 (en) * | 2022-01-08 | 2023-07-13 | Eds İnovasyon Maki̇ne Ve Otomasyon Ltd. Şti̇. | A balancing device for elevator transmission elements |
-
2019
- 2019-04-11 CN CN201920483405.3U patent/CN209740458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758785A (en) * | 2021-01-21 | 2021-05-07 | 永大电梯设备（中国）有限公司 | Elevator rope head device |
| WO2023132802A1 (en) * | 2022-01-08 | 2023-07-13 | Eds İnovasyon Maki̇ne Ve Otomasyon Ltd. Şti̇. | A balancing device for elevator transmission elements |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 |