CN203881621U - Clamping jaw testing equipment and system - Google Patents
Clamping jaw testing equipment and system Download PDFInfo
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- CN203881621U CN203881621U CN201420309236.9U CN201420309236U CN203881621U CN 203881621 U CN203881621 U CN 203881621U CN 201420309236 U CN201420309236 U CN 201420309236U CN 203881621 U CN203881621 U CN 203881621U
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- claw
- testing equipment
- hydraulic cylinder
- experiment frame
- loading hydraulic
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Abstract
The utility model provides clamping jaw testing equipment and a clamping jaw testing system. The clamping jaw testing equipment comprises jacks (4), lower anchor heads (3), loading hydraulic cylinders (2) and an experimental frame (1), wherein the jacks (4) are arranged at the outer side of the experimental frame (1), and the lower anchor heads (3) and the loading hydraulic cylinders (2) are arranged at the inner side of the experimental frame (1). The clamping jaw testing system also comprises a hydraulic pump station and a centralized control box. The clamping jaw testing equipment and the clamping jaw testing system adopt a horizontal door type structure, and risks of overhead operation are avoided; hydraulic loading is used for replacing a traditional weight block loading mode, a fatigue life test can be carried out on multiple pairs of clamping jaws at the same time, and endless cycle operation with on-load lifting and on-load falling is implemented in a test process, so that the clamping jaw test efficiency is improved; with the novel clamping jaw testing equipment, labour intensity can be reduced, and the whole test process can be completed by only one worker.
Description
Technical field
The utility model relates to claw testing equipment technical field, and concrete is a kind of claw testing equipment, or a kind of claw pilot system that contains this claw testing equipment.
Background technology
In the fields such as power construction at present, construction work, increasing superelevation super large, overweight heavy construction member need carry out on ground assembled making, then Integral lifting.Hydraulic lifting apparatus is a kind of novel, special hoisting device.Claw is bearing carrier important on this hydraulic lifting apparatus, by steel strand wires, the load of suspended object is passed to lifting jack.Once claw occurs to destroy or lost efficacy, consequence is extremely serious.
Claw is stressed has following characteristics: stressed larger, taking the steel strand wires of diameter 15.2mm as example, the stressed of every vice card pawl is 90kN; Shock load is very large, and hydraulic lifting apparatus is in lifting operation, and each stroke will carry out load transition, and when load transition, claw is severely affected load.The repeated action of heavy load and shock load, the performance requirements such as the fatigue strength to claw are very high.
Claw production technology and Technology for Heating Processing relative complex, the tiny flaw in manufacture process, all may cause claw not reach the rated life time.In order to check the performance of claw each side, ensure the rated life time of claw, every batch card pawl all must carry out sampling test, check by mechanical test whether claw is qualified (utilizes testing equipment simulation claw applying working condition, it is carried out to fatigue life test, and it is qualified that every vice card pawl is without destruction after 630 load transition).Claw is attrition component, and in order to ensure that enough output is for user, test must continual carrying out.
Traditional claw testing equipment adopts vertical structure, adopts variable weights load mode.Traditional following shortcoming of claw testing equipment implication:
1, traditional experiment equipment adopts variable weights to load, in the debugging of testing equipment, process of the test, steel strand wires are changed needs two staff coordinating operations simultaneously, and traditional experiment platform is not beneficial to the replacing of claw and the operational maintenance of equipment, needs work high above the ground etc., has certain potential safety hazard;
2, due to the restriction of device structure mode, can only test 2 vice card pawls, test efficiency is low at every turn;
3, traditional test method complicated operation, rises (or fall) to after certain altitude when claw promotes loading piece, needs manual operation to carry out the conversion of operating mode, records the load transition number of times of claw simultaneously, and automaticity is low.
Utility model content
In order to solve the low technical matters of existing claw testing equipment testing efficiency.The utility model provides a kind of claw testing equipment and claw pilot system.This claw testing equipment and claw pilot system adopt horizontal door type structure, have avoided the risk of work high above the ground.Substitute traditional loading piece load mode by hydraulic loaded, can carry out fatigue life test to many vice cards pawl simultaneously, and process of the test realizes that on-load rises and the infinite loop operation of on-load decline, improved claw test efficiency.Adopt new test equipment can reduce labour intensity, whole process of the test only needs a staff to complete.
The utility model is that the technical scheme that solves its technical matters employing is: a kind of claw testing equipment, comprises lifting jack, lower anchor head, loading hydraulic cylinder and experiment frame; Lifting jack is arranged on the outside of experiment frame, lower anchor head and loading hydraulic cylinder are arranged on the inner side of experiment frame, lifting jack is fixedly connected with lower anchor head by steel strand wires, and one end of loading hydraulic cylinder is connected with lower anchor head, and the other end of loading hydraulic cylinder is fixedly connected with experiment frame.
Experiment frame comprises and is arranged on conplane many supports.
Experiment frame is and is horizontally disposed with.
The bottom of experiment frame is provided with multiple for supporting the buttress of this experiment frame.
The bottom of experiment frame is provided with four for supporting the buttress of this experiment frame, and the distance between experiment frame and ground is 300mm.
Experiment frame is rectangle, and experiment frame comprises a girder and a foundation beam, and girder is parallel with bottom girder, is also provided with two root posts between girder and bottom girder.
Lifting jack is fixedly connected with girder, and girder is provided with the through hole passing for steel strand wires.
The cylinder barrel base of loading hydraulic cylinder is fixedly connected with bottom girder, and the piston of loading hydraulic cylinder is fixedly connected with the bearing pin of lower anchor head.
Described claw testing equipment comprises multiple lifting jack, multiple lower anchor head and multiple loading hydraulic cylinder, and lifting jack, lower anchor head and loading hydraulic cylinder connect one to one, and the specified pulling force of loading hydraulic cylinder is 700kN, and the stroke of loading hydraulic cylinder is 1000mm.
A kind of claw pilot system, contain above-mentioned claw testing equipment, this claw pilot system also contains hydraulic power unit and centralized-control box, between the lifting jack of this claw testing equipment and loading hydraulic cylinder and described hydraulic power unit, connect by high-pressure oil pipe and signal wire, this hydraulic power unit and this centralized-control box connect by control cables.
The beneficial effects of the utility model are: this claw testing equipment and claw pilot system adopt horizontal door type structure, have avoided the risk of work high above the ground.Substitute traditional loading piece load mode by hydraulic loaded, can carry out fatigue life test to many vice cards pawl simultaneously, and process of the test realizes that on-load rises and the infinite loop operation of on-load decline, improved claw test efficiency.Adopt new test equipment can reduce labour intensity, whole process of the test only needs a staff to complete.
Brief description of the drawings
Below in conjunction with accompanying drawing, claw testing equipment described in the utility model is described in further detail.
Fig. 1 is the structural representation of claw testing equipment.
Wherein 1. experiment frames, 11. girders, 12. bottom girders, 13. columns, 2. loading hydraulic cylinder, 3. descends anchor head, 31. bearing pins, 4. lifting jack, 5. steel strand wires.
Embodiment
Below in conjunction with accompanying drawing, claw testing equipment described in the utility model is described in further detail.A kind of claw testing equipment, comprises lifting jack 4, lower anchor head 3, loading hydraulic cylinder 2 and experiment frame 1; Lifting jack 4 is arranged on the outside of experiment frame 1, lower anchor head 3 and loading hydraulic cylinder 2 are arranged on the inner side of experiment frame 1, lifting jack 4 is fixedly connected with lower anchor head 3 by steel strand wires 5, one end of loading hydraulic cylinder 2 is connected with lower anchor head 3, the other end of loading hydraulic cylinder 2 is fixedly connected with experiment frame 1, as shown in Figure 1.
In this claw testing equipment, lifting jack 4, lower anchor head 3 and steel strand wires 5 are all the parts in existing hydraulic lifting apparatus, lifting jack 4, lower anchor head 3 and loading hydraulic cylinder 2 arrange point-blank, existing hydraulic lifting apparatus in use, claw is arranged in lifting jack 4, the utility model is also that claw is arranged in lifting jack 4, the force-bearing situation of simulation claw in the time of normal operating conditions, load-carrying when loading hydraulic cylinder 2 is used for simulating this hydraulic lifting apparatus use.Even the used time, as shown in Figure 1, lower anchor head 3 is subject to coming from the power left of lifting jack 4, descend anchor head 3 to be also subject to coming from the power to the right of loading hydraulic cylinder 2 simultaneously, this power is left used for simulating lifting jack lifting force, this power is to the right used for simulating lifting jack heavy burden load, force-bearing situation when claw is simulated normal operating conditions in lifting jack 4.Test condition approaches truth, can well be used for testing the quality of claw.
Experiment frame 1 comprises and is arranged on conplane many supports.Experiment frame 1 is and is horizontally disposed with, and the angle between plane and the surface level at experiment frame 1 place is 0
°.Be that experiment frame in Fig. 11 be arranged in parallel with level ground, also can be called horizontal.
The bottom of experiment frame 1 is provided with multiple for supporting the buttress of this experiment frame 1.Concrete, test stand 1 is propped by four H shaped steel buttresses, makes test stand 1 have certain altitude apart from ground, facilitates testing crew to carry out the experiment works such as claw replacing.Distance between experiment frame 1 and ground is 300mm.
Experiment frame 1 is rectangle, and experiment frame 1 comprises a girder 11 and a foundation beam 12, and girder 11 is parallel with bottom girder 12, is also provided with two root posts 13 between girder 11 and bottom girder 12.Lifting jack 4 is fixedly connected with girder 11, and girder 11 is provided with the through hole passing for steel strand wires 5.The cylinder barrel base of loading hydraulic cylinder 2 is fixedly connected with bottom girder 12, and the piston of loading hydraulic cylinder 2 is fixedly connected with the bearing pin 31 of lower anchor head 3.
Concrete, experiment frame 1 is horizontal design, horizontally disposed, does not need excavation foundation.Test stand is mainly made up of 1 girder, 11,1 foundation beam 12 and 2 root posts 13, sees Fig. 1.Installation test lifting jack 4 places on girder 11, the circular hole of 2 φ 200mm of excavation, so that steel strand wires 5 are connected with loading hydraulic cylinder 2 through girder 11.
Described claw testing equipment comprises multiple lifting jack 4, multiple lower anchor head 3 and multiple loading hydraulic cylinder 2, and lifting jack 4, lower anchor head 3 and loading hydraulic cylinder 2 connect one to one.Concrete, 2 groups of lifting jack, hydraulic cylinder mounting points are set on experiment frame 1.
Loading system adopts hydraulic system to drive, and load can regulate continuously, has overload protection function.Hydraulic system loading velocity is constant, if the emergency conditioies such as destruction occur suddenly connecting elements, also can not produce shock load.The specified pulling force of loading hydraulic cylinder 2 is 700kN, and the stroke of loading hydraulic cylinder 2 is 1000mm.A loading hydraulic cylinder 2 can meet the load requirement of simultaneously carrying out the test of many vice cards pawl, thereby improves test efficiency.
Also lifting jack 4 is transformed in addition, increased pressure transducer, displacement transducer, to realize collection and the record of test figure.Loading hydraulic cylinder 2 is selected common hydraulic cylinder, bearing tension, and not existence and stability problem, is not affected by unbalance loading etc., and reliability is higher, and is easy to safeguard.
Adopt hydraulic loaded, loading hydraulic cylinder 2 mainly provides a constant load to pilot system, and load is directly set up by pressure valve, and on-load pressure is determined according to load.Loading principle is: high-pressure pump, and---------oil-feed of solenoid valve---solenoid valve is opened---oil cylinder upside, realizes loading procedure to DCS steering order to pressure valve.
A kind of claw pilot system, this claw pilot system contains above-mentioned claw testing equipment, this claw pilot system also contains hydraulic power unit and centralized-control box, between the lifting jack 4 of this claw testing equipment and loading hydraulic cylinder 2 and described hydraulic power unit, connect by high-pressure oil pipe and signal wire, this hydraulic power unit and this centralized-control box connect by control cables.
This claw pilot system adopts action control, the monitoring of pressure and the record of data etc. of centralized control system for hydraulic cylinder, and specific requirement is as follows:
1, on-load rises and hockets with on-load decline work, after 4 strokes that rise, then 5 strokes of on-load decline to get back to initial point be a circulation;
2, counter records claw test cycle number of times is set in control system;
3, every pair of test claw carries out after 70 circulations, and system alarm prompting has been tested, and test lifting jack 4 quits work;
4, after completing a test batch (after 70 circulations) claw test, counter automatic clear;
5, setting pressure sensor on loading hydraulic cylinder, monitoring in real time also can show loaded load, in the time that load deviation is larger, system alarm prompting.
This claw testing equipment adopts horizontal door type structure, has avoided the risk of work high above the ground.Substitute traditional loading piece load mode by hydraulic loaded, can carry out fatigue life test to many vice cards pawl simultaneously, and process of the test realizes that on-load rises and the infinite loop operation of on-load decline, improved claw test efficiency.Adopt new test equipment can reduce labour intensity, whole process of the test only needs a staff to complete.
New test equipment the key technical indexes is as follows:
1, test claw quantity: 12 pairs simultaneously;
2, specified loaded load: 600kN;
3, loading hydraulic cylinder stroke: 1000mm;
4, process of the test is carried out continuously automatically, possesses the functions such as overload warning.
The structural strength of experiment frame 1 is a key point, according to equipment maximum load of the test, test stand intensity is checked to calculating, is optimized design according to result of calculation.
Because testing equipment is multi-state, multi-load form, and will accurately control test cylinder (jar) pulling force, guarantee to test steel strand wires and test under rated load, therefore, need to carry out program composition, test according to different operating modes, and control device is selected.
The above; be only specific embodiment of the utility model, can not limit the scope that utility model is implemented with it, so the displacement of its equivalent assemblies; or equivalent variations and the modification done according to the utility model scope of patent protection, all should still belong to the category that this patent is contained.Between technical scheme and technical scheme, all can use by independent assortment in addition, between the technical characterictic and technical characterictic in the utility model, between technical characterictic and technical scheme.
Claims (10)
1. a claw testing equipment, is characterized in that, described claw testing equipment comprises lifting jack (4), lower anchor head (3), loading hydraulic cylinder (2) and experiment frame (1);
Lifting jack (4) is arranged on the outside of experiment frame (1), lower anchor head (3) and loading hydraulic cylinder (2) are arranged on the inner side of experiment frame (1), lifting jack (4) is fixedly connected with lower anchor head (3) by steel strand wires (5), one end of loading hydraulic cylinder (2) is connected with lower anchor head (3), and the other end of loading hydraulic cylinder (2) is fixedly connected with experiment frame (1).
2. claw testing equipment according to claim 1, is characterized in that: experiment frame (1) comprises and is arranged on conplane many supports.
3. claw testing equipment according to claim 2, is characterized in that: experiment frame (1) is and is horizontally disposed with.
4. claw testing equipment according to claim 2, is characterized in that: the bottom of experiment frame (1) is provided with multiple for supporting the buttress of this experiment frame (1).
5. claw testing equipment according to claim 3, is characterized in that: the bottom of experiment frame (1) is provided with four for supporting the buttress of this experiment frame (1), and the distance between experiment frame (1) and ground is 300mm.
6. claw testing equipment according to claim 1, it is characterized in that: experiment frame (1) is rectangle, experiment frame (1) comprises a girder (11) and a foundation beam (12), girder (11) is parallel with bottom girder (12), between girder (11) and bottom girder (12), is also provided with two root posts (13).
7. claw testing equipment according to claim 6, is characterized in that: lifting jack (4) is fixedly connected with girder (11), and girder (11) is provided with the through hole passing for steel strand wires (5).
8. claw testing equipment according to claim 6, it is characterized in that: the cylinder barrel base of loading hydraulic cylinder (2) is fixedly connected with bottom girder (12), the piston of loading hydraulic cylinder (2) is fixedly connected with the bearing pin (31) of lower anchor head (3).
9. claw testing equipment according to claim 1, it is characterized in that: described claw testing equipment comprises multiple lifting jack (4), multiple lower anchor head (3) and multiple loading hydraulic cylinder (2), lifting jack (4), lower anchor head (3) and loading hydraulic cylinder (2) connect one to one, the specified pulling force of loading hydraulic cylinder (2) is 700kN, and the stroke of loading hydraulic cylinder (2) is 1000mm.
10. a claw pilot system, it is characterized in that: this claw pilot system contains the claw testing equipment described in claim 1～9 any one, this claw pilot system also contains hydraulic power unit and centralized-control box, between the lifting jack (4) of this claw testing equipment and loading hydraulic cylinder (2) and described hydraulic power unit, connect by high-pressure oil pipe and signal wire, this hydraulic power unit and this centralized-control box connect by control cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309236.9U CN203881621U (en) | 2014-06-11 | 2014-06-11 | Clamping jaw testing equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309236.9U CN203881621U (en) | 2014-06-11 | 2014-06-11 | Clamping jaw testing equipment and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881621U true CN203881621U (en) | 2014-10-15 |
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ID=51682107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309236.9U Expired - Fee Related CN203881621U (en) | 2014-06-11 | 2014-06-11 | Clamping jaw testing equipment and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034591A (en) * | 2014-06-11 | 2014-09-10 | 北京国网富达科技发展有限责任公司 | Claw test instrument and claw test system |
-
2014
- 2014-06-11 CN CN201420309236.9U patent/CN203881621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034591A (en) * | 2014-06-11 | 2014-09-10 | 北京国网富达科技发展有限责任公司 | Claw test instrument and claw test system |
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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: 20141015 Termination date: 20200611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |