CN203824828U - Device for reducing frictional force of piston rod of high-tonnage horizontal fatigue testing machine - Google Patents
Device for reducing frictional force of piston rod of high-tonnage horizontal fatigue testing machine Download PDFInfo
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- CN203824828U CN203824828U CN201420201885.7U CN201420201885U CN203824828U CN 203824828 U CN203824828 U CN 203824828U CN 201420201885 U CN201420201885 U CN 201420201885U CN 203824828 U CN203824828 U CN 203824828U
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- piston rod
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- vertical movable
- travelling block
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Abstract
The utility model belongs to the field of mechanical design and metal material performance testing, and particularly relates to a device for reducing a frictional force of a piston rod of a high-tonnage horizontal fatigue testing machine. The device comprises a T-shaped steel frame, a pulley, a steel wire rope, a balancing weight and a vertical tension horizontal follow-up device. According to the utility model, through the application of a balanced weight method, the self gravity of the piston rod is balanced by using a pull force produced by the weight of the balancing weight, so that the piston rod is basically suspended in an actuating cylinder sleeve in the process of moving, thereby reducing the friction between the piston rod and the wall of the cylinder. By using the tension follow-up device, a tension steel wire rope is connected with the piston rod by a horizontal follow-up pulley; when the piston rod acts, the follow-up pulley and the piston rod move together, and no horizontal tension is produced, so that a configured load vertically acts on the piston rod, thereby ensuring the stability of weight load; the design can achieve an effect of prolonging the service life of the large fatigue testing machine, and reducing the energy consumption of running.
Description
Technical field
The utility model belongs to Machine Design and metal material performance test field, is specifically related to a kind of device that reduces friction force and wearing and tearing between the horizontal fatigue tester start of high tonnage cylinder casing wall and piston rod.
Background technology
Along with modern project is towards maximization, long-life future development, increasing Novel engineering member and engineering structure need to be carried out the experimental verification of fatigue behaviour.Large scale and full-scale material or member are carried out to the experimental assembly that testing fatigue needs high tonnage.The demand of the large-scale fatigue experiment equipment of China recent years is more and more.As the cable wire of large bridge, need carry out fatigue property test to it.Other structure is as large ship anchor chain, ocean platform member, and high-rise building material etc., all exist similar fatigue experiment demand.
Large-scale material or member are carried out to the generally high tonnage dynamic fatigue test machine of needs of testing fatigue, and testing machine provides power to produce load applying to test specimen by hydraulic system.Testing machine is generally divided into horizontal and vertical two kinds of structures, and vertical testing machine is generally more suitable for compression test, when sample is longitudinally placed, can reduce the amount of deflection producing due to gravity, increases the stability of sample simultaneously.But for stretching experiment, particularly the longer stretching experiment of sample, adopts horizontal test machine method conventionally, make the structure of testing machine more stable on the one hand, do not need too high building construction, reduce expenditure of construction; The easier Installation and Debugging of sample on the other hand, and the observation in experimentation and detection, be also conducive to applying of experimental situation analog machine.Therefore horizontal fatigue tester becomes the major way of large-scale material fatigue experiment equipment.
Because high tonnage testing machine hydraulic actuation cylinder diameter of cylinder is thicker, for the fatigue type experimental machine pair rod start cylinders that adopt, its piston rod length is longer, general approximately 2 meters to 4 meters more.Therefore the weight of piston rod is larger, generally can reach tens tons to tens tons.Because piston rod weight is larger, pressure between piston rod and start casing wall is larger, cause having certain friction force between piston rod and start cylinder casing wall, the precision that not only impact is tested, also can cause the increase of energy consumption in fatigue experiment process, more seriously can in long-term experiment process, cause wearing and tearing at piston rod and start casing wall, cause leakage of oil, shorten experimental facilities serviceable life.
Utility model content
In order to address the above problem, the purpose of this utility model is to provide a kind of gravity that utilizes pulling force that counterweight method produces by counterweight weight to offset start cylinder piston rod, make piston rod when motion substantially suspend with start cylinder sleeve in, thereby reduce the device of the horizontal fatigue tester piston rod of the high tonnage of the reduction friction force of the friction between piston rod and casing wall.
The technical solution of the utility model is: a kind of device that reduces the horizontal fatigue tester piston rod of high tonnage friction force, and this device comprises T font steelframe, pulley, wire rope, counterweight counterweight and vertical tension level hunting gear,
Wherein, described in, state vertical tension level hunting gear by housing, vertical movable frame, vertically with travelling block and level with travelling block; Described vertical movable frame arranges in described housing, the described both sides that are vertically arranged on described vertical movable frame with travelling block, described vertical movable frame moves freely in vertical direction along described housing, described level is arranged in described vertical movable frame with travelling block, and described level moves horizontally in described vertical movable frame with travelling block.
2 described pulleys are symmetricly set on the two ends of the horizontal gird upper surface of described T font steelframe, horizontal gird steel one end of the housing of described vertical tension level hunting gear and described T font steelframe is affixed, described wire rope is arranged on 2 pulleys, the upper end of one end and described vertical movable frame is affixed, and the other end and described counterweight counterweight are affixed.
The beneficial effects of the utility model are: owing to adopting technique scheme, the utility model utilizes the gravity of the tension balanced piston rod self that counterweight method produces by counterweight weight, piston rod is substantially suspended in start cylinder sleeve when motion, thereby reduce the friction between piston rod and casing wall, and then the degree of wear of maximized reduction piston rod, improve equipment Years Of Service.Utilize pulling force hunting gear, tension wire rope is connected with piston rod with travelling block by level.When piston rod moves, with travelling block and piston rod, move, do not produce horizontal direction pulling force, make to configure load and vertically act on piston rod, guarantee the stability of counterweight load.This design can be played and improve large-scale fatigue tester serviceable life, reduces the effect of operation energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model reduces the device of the horizontal fatigue tester piston rod of high tonnage friction force.
Fig. 2 is the structural representation of vertical tension level hunting gear of the present utility model.
In figure: 1, start cylinder piston rod, 2, T-steel frame, 3, counterweight counterweight, 4, pulley, 5, wire rope, 6, vertical tension level hunting gear, 7, vertical movable frame, 8, level is with travelling block, 9, vertically with travelling block, 10 housings.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
As shown in Figure 1-2, a kind of device that reduces the horizontal fatigue tester piston rod of high tonnage friction force of the utility model, this device comprises T font steelframe 2, pulley 4,5 wire rope, 3 counterweight counterweights and 6 vertical tension level hunting gears,
Wherein, described vertical tension level hunting gear is by housing 10, vertical movable frame 7, vertically form with travelling block 8 with travelling block 9 and level; Described vertical movable frame 7 arranges in described housing 10, the described both sides that are vertically arranged on described vertical movable frame 7 with travelling block 9, described vertical movable frame 7 moves freely in vertical direction in described housing 10, described level is arranged in described vertical movable frame 7 with travelling block 8, and described level moves horizontally in described vertical movable frame 7 with travelling block 8.
2 described pulleys 4 are symmetricly set on the two ends of the horizontal gird upper surface of described T font steelframe 2, the housing 10 of described vertical tension level hunting gear 6 is affixed with horizontal gird steel one end of described T font steelframe 2, described wire rope 5 is arranged on 2 pulleys 4, the upper end of one end and described vertical movable frame 7 is affixed, and the other end and described counterweight counterweight 3 are affixed.
During use, sample is connected to piston rod 1 effect and holds and apply certain prestretched load, measure the position of piston rod, then 2 T-steel framves 2 are installed, make the tensile load application point of vertical tension level hunting gear 6 in piston rod 1 two ends directly over, and guarantee that the level on vertical tension level hunting gear 6 is completely parallel with the direction of motion of piston rod 1 with travelling block 8 glide directions, by wire rope, piston rod 1 and level is affixed with travelling block 8.To be arranged on one end of the wire rope 5 on pulley 4 and the upper end of vertical movable frame 7 is affixed, other end applying portion counterweight counterweight 3, adjust rope capacity, make each several part in work shape body, start testing machine, make piston rod 1 motion, observe each motion working condition, it is further adjusted.Half at 2 T-steel frame counterweight ends increase counterweight counterweights 3 having debugged to piston rod weight, starting characteristics test machine is started working.
Claims (1)
1. reduce a device for the horizontal fatigue tester piston rod of high tonnage friction force, it is characterized in that, this device comprises T font steelframe, pulley, wire rope, counterweight counterweight and vertical tension level hunting gear,
Wherein, described vertical tension level hunting gear by housing, vertical movable frame, vertically with travelling block and level with travelling block; Described vertical movable frame arranges in described housing; the described both sides that are vertically arranged on described vertical movable frame with travelling block; described vertical movable frame moves freely in vertical direction along described housing; described level is arranged in described vertical movable frame with travelling block, and described level moves horizontally in described vertical movable frame with travelling block;
2 described pulleys are symmetricly set on the two ends of the horizontal gird upper surface of described T font steelframe, horizontal gird steel one end of the housing of described vertical tension level hunting gear and described T font steelframe is affixed, described wire rope is arranged on 2 pulleys, the upper end of one end and described vertical movable frame is affixed, and the other end and described counterweight counterweight are affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201885.7U CN203824828U (en) | 2014-04-23 | 2014-04-23 | Device for reducing frictional force of piston rod of high-tonnage horizontal fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201885.7U CN203824828U (en) | 2014-04-23 | 2014-04-23 | Device for reducing frictional force of piston rod of high-tonnage horizontal fatigue testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824828U true CN203824828U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201885.7U Expired - Fee Related CN203824828U (en) | 2014-04-23 | 2014-04-23 | Device for reducing frictional force of piston rod of high-tonnage horizontal fatigue testing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203824828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254170A (en) * | 2018-01-12 | 2018-07-06 | 中铁检验认证中心 | A kind of contact net tension compensating fatigue experimental device |
| CN112394027A (en) * | 2019-08-12 | 2021-02-23 | 中国石油化工股份有限公司 | Weight, reciprocating type friction and wear testing machine and friction and wear testing method |
| CN114184380A (en) * | 2021-11-26 | 2022-03-15 | 人本股份有限公司 | CT machine turntable bearing test device |
-
2014
- 2014-04-23 CN CN201420201885.7U patent/CN203824828U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254170A (en) * | 2018-01-12 | 2018-07-06 | 中铁检验认证中心 | A kind of contact net tension compensating fatigue experimental device |
| CN108254170B (en) * | 2018-01-12 | 2024-04-02 | 中铁检验认证中心 | Fatigue test device for tension compensation of contact net |
| CN112394027A (en) * | 2019-08-12 | 2021-02-23 | 中国石油化工股份有限公司 | Weight, reciprocating type friction and wear testing machine and friction and wear testing method |
| CN114184380A (en) * | 2021-11-26 | 2022-03-15 | 人本股份有限公司 | CT machine turntable bearing test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |