CN206235454U - The device that crushes of safety unit of tractor intensity test bench - Google Patents
The device that crushes of safety unit of tractor intensity test bench Download PDFInfo
- Publication number
- CN206235454U CN206235454U CN201621063777.3U CN201621063777U CN206235454U CN 206235454 U CN206235454 U CN 206235454U CN 201621063777 U CN201621063777 U CN 201621063777U CN 206235454 U CN206235454 U CN 206235454U
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- China
- Prior art keywords
- hydraulic cylinder
- crushes
- control valve
- adjustment seat
- auxiliary support
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Abstract
The utility model provides the device that crushes of a kind of simple structure and safety unit of tractor intensity test bench reasonable in design.To achieve these goals, the utility model uses following technical scheme：A kind of device that crushes of safety unit of tractor intensity test bench, including casing, frame body and height adjustment mechanism, casing top has open other each face closures, open-mouth is provided with extension plate and the filter with filter opening, casing is located in frame body, and casing top is connected as one by height adjustment mechanism with frame body.
Description
Technical field
The utility model is related to a kind of safety unit of tractor detection technique field, and in particular to safety unit of tractor is strong
Spend the device that crushes of testing stand.
Background technology
The anti-translation frame of tractor can effectively reduce the injury to driver when tractor is turned on one's side, and China was in 2008 years
The GB18447 of implementation《Tractor safety requirements》The intensity of roll-over protective structure or safety cab to tractor has been done and has clearly been advised
It is fixed, it is desirable to which that tractor manufacturing enterprise and quality supervision and test mechanism must be carried out by force to the roll-over protective structure of tractor or safety cab
Whether degree experiment, the design strength of the anti-translation frame provisioned in tractor meets Standard, so as to cause overturn accident to drive
The injured possibility of member is reduced to minimum, and it is crucial that how it is checked.And safety unit of tractor intensity test bench is to implement
Horizontal addload and crushing test carry out the special equipment of ruggedness test.
Research work of the China to safety unit of tractor starts from the sixties in early days, is mainly to improve tractor at that time
The stability of whole machine, prevent device that tractor overturns and prevent based on the warning device research that tractor overturns, and to dragging
Never paid attention to well in the research of the protector of protection driver's personal safety after machine drawing generation overturn accident.
With the progressively development of tractor, the research of safety unit of tractor security performance importance has slowly obtained the attention of China.
It is Chinese just to start to enter tractor Mobile state tipping characteristic research and the development work to its protector to the later stage eighties
Make, while according to international relevant criterion, having formulated the safety unit of tractor Strength Testing Methods and examination for belonging to China
The national standard of condition is tested, is also established about the static and dynamic strong of safety unit of tractor in some tractor research institutes
Degree research department.
At present, the technical scheme of the device typically use of crushing of Chinese safety unit of tractor intensity test bench is：Pressure across
Loading device is made up of a loading crossbeam and two hydraulic strokers and two chains, and the cross-device loading height and position of pressure can
By two regulation chains come according to the adjustment carried out by the height of experiment safety unit of tractor in vertical direction, structure letter
It is single.But needing driving that pressure is lifted across loading crossbeam carries out load test of crushing, and operation is more complicated, and labour intensity is big, from
Dynamicization low degree, and with certain risk.
Utility model content
The utility model purpose is to provide a kind of simple to operate safe and reasonable in design safety unit of tractor intensity examination
Test the device that crushes of platform.
To achieve these goals, the utility model uses following technical scheme：
A kind of device that crushes of safety unit of tractor intensity test bench, including the crossbeam that crushes, crossbeam two ends difference of crushing
Two loading hydraulic cylinder upper ends of connection, the rear of two loading hydraulic cylinders and the side of one of loading hydraulic cylinder are all connected with one
Individual Auxiliary support hydraulic cylinder upper end, Auxiliary support hydraulic cylinder and two loading hydraulic cylinders can relative intensity testing stand do longitudinal direction
Mobile, when three Auxiliary support hydraulic cylinders are in floating position, loading hydraulic cylinder is in two power bar states, whole device freedom
It is four to spend, and when three Auxiliary support hydraulic cylinders are in non-quick condition, whole device is in cantilever beam state.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, it also includes longitudinally disposed along intensity test bench
Three can be moved forward and backward with upper rail, loading hydraulic cylinder and Auxiliary support hydraulic cylinder along guide rail, three Auxiliary support hydraulic cylinders
In two Auxiliary support hydraulic cylinder upper ends be connected with two loading hydraulic cylinder cylinder barrel upper ends respectively, and after loading hydraulic cylinder
Side, another Auxiliary support hydraulic cylinder upper end and the loading hydraulic pressure on the left of the crossbeam that crushes in three Auxiliary support hydraulic cylinders
Cylinder is connected, and positioned at the left side of loading hydraulic cylinder.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, guide rail includes left rail, right guide rail and side rails,
It is respectively mounted left adjustment seat, right adjustment seat, side adjustment seat and rear adjustment seat on left rail, right guide rail and side rails, left adjustment seat,
The loading hydraulic cylinder of the crossbeam left end that crushes is respectively articulated with right adjustment seat, side adjustment seat and rear adjustment seat, crush crossbeam right-hand member
The Auxiliary support hydraulic cylinder of Auxiliary support hydraulic cylinder and loading hydraulic cylinder rear on the left of loading hydraulic cylinder, the crossbeam that crushes, left tune
Connected by pull bar between section seat and rear adjustment seat and between right adjustment seat and rear adjustment seat.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, two loading hydraulic cylinder upper ends pass through ball pivot knot
Structure is coupled with the crossbeam that crushes, and two loading hydraulic cylinder lower ends are connected with left adjustment seat, right adjustment seat respectively by spherical hinge structure, and three
Individual Auxiliary support hydraulic cylinder upper end is connected by spherical hinge structure with two loading hydraulic cylinder cylinder barrel upper ends, three Auxiliary support hydraulic pressure
Cylinder lower end is connected by spherical hinge structure with adjustment seat after side adjustment seat and two respectively.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, its also include hydraulic power unit, hydraulic power unit with it is each
Connected by fluid pressure line between individual hydraulic cylinder, the flowline of fuel tank is by the import after filter with variable pump in hydraulic power unit
Connection, the outlet of variable pump by after check valve respectively with the first electrohydraulic proportional control valve, the second electrohydraulic proportional control valve, the 3rd
Electrohydraulic proportional control valve, the 4th electrohydraulic proportional control valve, the oil inlet connection of the 5th electrohydraulic proportional control valve, the first electric-hydraulic proportion
The oil-out of control valve, the second electrohydraulic proportional control valve and the 5th electrohydraulic proportional control valve connects three auxiliary through solenoid directional control valve
The oil-out of supporting cylinder, the 3rd electrohydraulic proportional control valve and the 4th electrohydraulic proportional control valve connects two loading hydraulic pressure respectively
Cylinder.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, the rod chamber and nothing of three Auxiliary support hydraulic cylinders
Rod cavity is respectively connected with pressure gauge.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, is mounted on displacement biography on two loading hydraulic cylinders
Sensor and pull pressure sensor, displacement transducer is equipped with three Auxiliary support hydraulic cylinders.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, is also connected with accumulator and total on variable oil pump outlet line
Pressure gauge.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, hydraulic power unit is also associated with safety overflow valve.
The device that crushes of above-mentioned safety unit of tractor intensity test bench, it also includes control system, and control system includes
Microcomputer, programming device and switch board, switch board include A/D, D/A, I/O module, CPU module, microprocessor and storage
Device, A/D, D/A and I/O module is connected with memory, the first electrohydraulic proportional control valve, the second electrohydraulic proportional control valve, the 3rd electricity
Liquid proportional control valve, the 4th electrohydraulic proportional control valve, the 5th electrohydraulic proportional control valve are connected with switch board, pull pressure sensor and
Displacement transducer is connected with switch board.
The beneficial effects of the utility model are：
Coordinate loading hydraulic cylinder and the crossbeam that crushes by the effect of Auxiliary support hydraulic cylinder floating, tractor protection can be completed
The experiment of crushing of device intensity test bench；Control system is provided with, using the attitude parameter of computer remote loading device and whole
Individual process of the test, loads accurate, easy to operate, high degree of automation, effectively increases the security of process of the test.
Brief description of the drawings
Fig. 1 is schematic front view of the present utility model.
Fig. 2 is schematic side view of the present utility model.
Fig. 3 is hydraulic system principle figure.
Fig. 4 is control system schematic diagram
1. crush crossbeam in figure, 2. left spherical hinge structure, 3. right spherical hinge structure, 4. Zola's pressure sensor, 5. right tension and compression
Force snesor, 6. left side loading hydraulic cylinder, 7. right side loading hydraulic cylinder, 8. left dislocation sensor, 9. right displacement transducer,
10. side supporting cylinder, 11. side displacement transducers, 12. side adjustment seats, 13. left adjustment seats, 14. right adjustment seats, 15.
Side rails, 16. left rails, 17. right guide rails, 18. testing stands, displacement transducer after 19., 20. rear support hydraulic cylinders, 21.
Adjustment seat afterwards, 22. pull bars, 27. the 3rd electrohydraulic proportional control valves, 28. the 4th electrohydraulic proportional control valves, 29. first electricity
Liquid proportional controls valve, 30. second electrohydraulic proportional control valves, 31. the 5th electrohydraulic proportional control valves, 32. first electromagnetism to change
To valve, 33. second solenoid directional control valves, 34. the 3rd solenoid directional control valves, 35. pressure gauges, 36. pressure gauges, 37. pressure gauges,
38. pressure gauges, 39. pressure gauges, 40. pressure gauges, 41. variable pumps, 42. check valves, 43. accumulators, 44. gross pressure tables, 45.
Safety overflow valve.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage become more apparent, develop simultaneously implementation referring to the drawings
Example, further describes to the utility model.
A kind of device that crushes of safety unit of tractor intensity test bench, including hydraulic cylinder, crush crossbeam 1, guide rail and control
System processed, guide rail includes left rail 16, right guide rail 17 and side rails 15, and left rail 16, right guide rail 17, side rails 15 are along intensity
Testing stand 18 is longitudinally disposed, and side rails 15 are located at the side of left rail 16, and hydraulic cylinder includes loading hydraulic cylinder and three Auxiliary supports
Hydraulic cylinder, loading hydraulic cylinder includes left side loading hydraulic cylinder 6 and right side loading hydraulic cylinder 7, and three Auxiliary support hydraulic cylinders include
The two rear support hydraulic cylinders 20 and the side supporting cylinder positioned at the side of left side loading hydraulic cylinder 6 for being located at loading hydraulic cylinder rear
10, left side loading hydraulic cylinder 6, right side loading hydraulic cylinder 7, rear support hydraulic cylinder 20 and side supporting cylinder 10 are respectively along left rail
16th, right guide rail 17 and the direction of side rails 15 are movable, left side loading hydraulic cylinder 6, the upper end connection pressure of right side loading hydraulic cylinder 7
Collapse the two ends of crossbeam 1, and the upper end of side supporting cylinder 10 is connected with the cylinder barrel upper end of left side loading hydraulic cylinder 6, two rear support hydraulic pressure
The upper end of cylinder 20 is connected with left side loading hydraulic cylinder 6 and the cylinder barrel upper end of right side loading hydraulic cylinder 7 respectively.
Left adjustment seat 13, right adjustment seat 14, side adjustment seat 12 are respectively mounted on left rail 16, right guide rail 17 and side rails 15
With rear adjustment seat 21, cut with scissors respectively by spherical hinge structure in left adjustment seat 13, right adjustment seat 14, side adjustment seat 12 and rear adjustment seat 21
Connect left side loading hydraulic cylinder 6, right side loading hydraulic cylinder 7, side supporting cylinder 10 and rear support hydraulic cylinder 20, the He of left adjustment seat 13
Connected by pull bar 22 between adjustment seat 21 and between right adjustment seat 14 and rear adjustment seat 21 afterwards, left side loading hydraulic cylinder 6
Upper end is connected by left spherical hinge structure 2 with the left end of crossbeam 1 that crushes, and the upper end of right side loading hydraulic cylinder 7 is by right spherical hinge structure 3 and pressure
The right-hand member of crossbeam 1 that collapses is connected, and the upper end of side supporting cylinder 10 is connected by spherical hinge structure with the cylinder barrel upper end of left side loading hydraulic cylinder 6,
Two upper ends of rear support hydraulic cylinder 20 are respectively by spherical hinge structure and left side loading hydraulic cylinder 6 and the cylinder barrel of right side loading hydraulic cylinder 7
Upper end is connected, and the crossbeam 1 that crushes is carried out spacing in the flip angle of fore-and-aft direction by left spherical hinge structure 2 and right spherical hinge structure 3.
Left dislocation sensor 8 and Zola's pressure sensor 4 are installed on the loading hydraulic cylinder 6 of left side in the present embodiment, so as to
The change in displacement of left side loading hydraulic cylinder 6 and load change are measured, right displacement sensing is installed on right side loading hydraulic cylinder 7
Device 9 and right pull pressure sensor 5, to be measured to the change in displacement of right side loading hydraulic cylinder 7 and load change, left dislocation is passed
Sensor 8, Zola's pressure sensor 4 are right, displacement transducer and right pull pressure sensor 5 are connected with control system, and control system implements
Data to left dislocation sensor 8, Zola's pressure sensor 4, right displacement transducer 9 and right pull pressure sensor 5 are acquired,
And draw load and displacement changing curve according to the data of collection；Side supporting cylinder 10 and the top of rear support hydraulic cylinder 20 are distinguished
It is provided with side displacement transducer 11 and rear displacement transducer 19.
Also include hydraulic power unit in the present embodiment, connected by fluid pressure line between hydraulic power unit and each hydraulic cylinder, liquid
The flowline of fuel tank is connected by the import after filter with variable pump in press pump station, and the outlet of variable pump is by after check valve points
Not with the first electrohydraulic proportional control valve 29, the second electrohydraulic proportional control valve 30, the 3rd electrohydraulic proportional control valve 27, the 4th electro-hydraulic ratio
The oil inlet connection of example control valve 28, the 5th electrohydraulic proportional control valve 31, the oil inlet connection of electrohydraulic proportional control valve 29, first
The oil-out of electrohydraulic proportional control valve 29 is through the connecting side supporting cylinder 10 of the first solenoid directional control valve 32, the second electrohydraulic proportional control valve
30 oil-outs through the connection of the second solenoid directional control valve 33 rear support hydraulic cylinder 20, the 5th electrohydraulic proportional control valve 31 oil-out through the
Three solenoid directional control valve 34 connects another rear support hydraulic cylinder 20, the 3rd electrohydraulic proportional control valve 27, the 4th electric-hydraulic proportion control
The oil-out of valve processed 28 connects left side loading hydraulic cylinder 6, right side loading hydraulic cylinder 7 respectively.Variable pump 41 is used to provide hydraulic pressure system
Pressure needed for system, while the change and regulation of uninterrupted can be realized under the control of frequency converter.Check valve 42 is installed
In the exit of hydraulic pump, can prevent the pressure of hydraulic system from raising suddenly and damaging oil pump, that is, play non-return.
The rod chamber and rodless cavity of side supporting cylinder 10 and rear support hydraulic cylinder 20 are respectively connected with pressure gauge, for detecting
Hydraulic cylinder works state.Accumulator 43, gross pressure table 44 and safety overflow valve 45 are also connected with variable oil pump outlet line；Gross pressure table
44 play display pressure, the pressure for determining current hydraulic system；Accumulator 43 is used for storing energy；Overflow valve 45 is then to whole
Individual hydraulic system plays safeguard protection.
Control system includes microcomputer 25, programming device 23, switch board 24 and display print record alarm module,
Switch board 24 includes：A/D, D/A, I/O module 26, CPU module, microprocessor and memory, A/D, D/A and I/O module with deposit
Reservoir is connected, the first electrohydraulic proportional control valve 29, the second electrohydraulic proportional control valve 30, the 3rd electrohydraulic proportional control valve the 27, the 4th
Electrohydraulic proportional control valve 28, the 5th electrohydraulic proportional control valve 31 are connected with switch board 24, pull pressure sensor and displacement transducer
It is connected with switch board 24.
It is as follows using utility model works process：
Experiment prepare, safety unit of tractor is fixed on testing stand 18 first, left adjustment seat 13, right adjustment seat 14,
Moved along left rail 16, right guide rail 17, side rails 15 respectively in side adjustment seat 12, adjust left adjustment seat 13, right adjustment seat 14, side
Section seat 12 is in same vertical plane with the loading position of the crossbeam 1 that crushes.Between left adjustment seat 13 and rear adjustment seat 21 and
It is connected by cylinder lever connecting rod 22 between right adjustment seat 14 and rear adjustment seat 21, it is ensured that its relative position is constant.It is remote by computer
Process control adjusts Auxiliary support hydraulic cylinder, left side loading hydraulic cylinder 6 and the attitude of right side loading hydraulic cylinder 7 is in plumbness；
The displacement of regulation left side loading hydraulic cylinder 6 and right side loading hydraulic cylinder 7, the crossbeam 1 that makes to crush comes into contact with the tractor for fixing
Protector.Due to left spherical hinge structure 2 and the position-limiting action of right spherical hinge structure 3, crush flip angle of the crossbeam 1 in fore-and-aft direction
Within ± 30 °, during the crossbeam 1 that crushes comes into contact with safety unit of tractor, in the effect of safety unit of tractor
Under, the crossbeam 1 that crushes constantly adjusts its flip angle, until being in horizontality, experiment set-up procedure terminates.Process of the test starts
When, first by the first solenoid directional control valve 32, the second solenoid directional control valve 33, the 3rd solenoid directional control valve 34 are got to quick condition, are made auxiliary
Supporting cylinder is helped to be in quick condition, left side loading hydraulic cylinder 6 and right side loading hydraulic cylinder 7 are in two power bar states, freely
It is 4 to spend, and then control left side loading hydraulic cylinder 6 and right side loading hydraulic cylinder 7 are pressed with the desired value and loading velocity that set
Collapse experiment.After off-test, first by the first solenoid directional control valve 32, the second solenoid directional control valve 33, the 3rd solenoid directional control valve 34
Non- quick condition is got to, Auxiliary support hydraulic cylinder is in stress, now left side loading hydraulic cylinder 6 and right side loading hydraulic cylinder
7 are just in cantilever beam state in the presence of Auxiliary support hydraulic cylinder, and attitude is uniquely controllable, then by adjusting left side loading liquid
The displacement of cylinder pressure 6 and right side loading hydraulic cylinder 7, makes to crush crossbeam 1 in proper height, prepares second crushing test.Experiment
After end, adjust each oil cylinder and recover to original state.
Above-mentioned specific embodiment is only specific case of the present utility model, is not to make other forms to the utility model
Limitation, any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as equivalent
The equivalent implementations of change.But on the premise of every know-why without departing from the utility model, according to of the present utility model
Any simple modification, equivalent variations and remodeling that technical spirit is made to embodiment of above, should all fall into of the present utility model
Scope of patent protection.
Claims (10)
1. a kind of device that crushes of safety unit of tractor intensity test bench, it is characterised in that：Including the crossbeam that crushes, crush crossbeam
Two ends connect two loading hydraulic cylinder upper ends respectively, the rear of two loading hydraulic cylinders and the side of one of loading hydraulic cylinder
An Auxiliary support hydraulic cylinder upper end is all connected with, Auxiliary support hydraulic cylinder and two loading hydraulic cylinders being capable of relative intensity experiments
Platform is vertically moved, and when three Auxiliary support hydraulic cylinders are in floating position, loading hydraulic cylinder is in two power bar states, entirely
The device free degree is four, and when three Auxiliary support hydraulic cylinders are in non-quick condition, whole device is in cantilever beam state.
2. the device that crushes of safety unit of tractor intensity test bench according to claim 1, it is characterised in that：It also includes
Along intensity test bench, longitudinally disposed three can be moved with upper rail, loading hydraulic cylinder and Auxiliary support hydraulic cylinder along before and after guide rail
Dynamic, two Auxiliary support hydraulic cylinder upper ends connect with two loading hydraulic cylinder cylinder barrel upper ends respectively in three Auxiliary support hydraulic cylinders
Connect, and another Auxiliary support hydraulic cylinder upper end and place in the rear of loading hydraulic cylinder, three Auxiliary support hydraulic cylinders
Loading hydraulic cylinder connection on the left of the crossbeam that crushes, and positioned at the left side of loading hydraulic cylinder.
3. the device that crushes of safety unit of tractor intensity test bench according to claim 2, it is characterised in that：Guide rail includes
Left rail, right guide rail and side rails, are respectively mounted left adjustment seat, right adjustment seat, side regulation on left rail, right guide rail and side rails
Seat and rear adjustment seat, are respectively articulated with the loading of the crossbeam left end that crushes in left adjustment seat, right adjustment seat, side adjustment seat and rear adjustment seat
Auxiliary support hydraulic cylinder and loading hydraulic cylinder rear on the left of hydraulic cylinder, the loading hydraulic cylinder of the crossbeam right-hand member that crushes, the crossbeam that crushes
Auxiliary support hydraulic cylinder, connected by pull bar between left adjustment seat and rear adjustment seat and between right adjustment seat and rear adjustment seat
Connect.
4. the device that crushes of safety unit of tractor intensity test bench according to claim 1, it is characterised in that：Two loadings
Hydraulic cylinder upper end is coupled by spherical hinge structure with the crossbeam that crushes, two loading hydraulic cylinder lower ends by spherical hinge structure respectively with a left side
Adjustment seat, right adjustment seat connection, three Auxiliary support hydraulic cylinder upper ends are by spherical hinge structure and two loading hydraulic cylinder cylinder barrels
End connection, three Auxiliary support hydraulic cylinder lower ends are connected by spherical hinge structure with adjustment seat after side adjustment seat and two respectively.
5. according to any one of Claims 1-4 safety unit of tractor intensity test bench the device that crushes, its feature exists
In：It also includes hydraulic power unit, is connected by fluid pressure line between hydraulic power unit and each hydraulic cylinder, fuel tank in hydraulic power unit
Flowline is connected by the import after filter with variable pump, and the outlet of variable pump is by ratio electro-hydraulic with first respectively after check valve
Example control valve, the second electrohydraulic proportional control valve, the 3rd electrohydraulic proportional control valve, the 4th electrohydraulic proportional control valve, the 5th electro-hydraulic ratio
The oil inlet connection of example control valve, the first electrohydraulic proportional control valve, the second electrohydraulic proportional control valve and the 5th electrical-liquid control
The oil-out of valve connects three Auxiliary support hydraulic cylinders, the 3rd electrohydraulic proportional control valve and the 4th electric-hydraulic proportion through solenoid directional control valve
The oil-out of valve is controlled to connect two loading hydraulic cylinders respectively.
6. the device that crushes of safety unit of tractor intensity test bench according to claim 5, it is characterised in that：Three auxiliary
The rod chamber and rodless cavity of supporting cylinder are respectively connected with pressure gauge.
7. the device that crushes of safety unit of tractor intensity test bench according to claim 5, it is characterised in that：Two loadings
Displacement transducer and pull pressure sensor are mounted on hydraulic cylinder, displacement sensing is equipped with three Auxiliary support hydraulic cylinders
Device.
8. the device that crushes of safety unit of tractor intensity test bench according to claim 5, it is characterised in that：Variable is pumped out
Accumulator and gross pressure table are also connected with oil pipe.
9. the device that crushes of safety unit of tractor intensity test bench according to claim 5, it is characterised in that：Hydraulic power unit
It is also associated with safety overflow valve.
10. the device that crushes of safety unit of tractor intensity test bench according to claim 5, it is characterized in that：It is also wrapped
Control system is included, control system includes microcomputer, programming device and switch board, and switch board includes A/D, D/A, I/O mould
Block, CPU module, microprocessor and memory, A/D, D/A and I/O module are connected with memory, the first electrohydraulic proportional control valve,
Second electrohydraulic proportional control valve, the 3rd electrohydraulic proportional control valve, the 4th electrohydraulic proportional control valve, the 5th electrohydraulic proportional control valve with
Switch board is connected, and pull pressure sensor and displacement transducer are connected with switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621063777.3U CN206235454U (en) | 2016-09-20 | 2016-09-20 | The device that crushes of safety unit of tractor intensity test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621063777.3U CN206235454U (en) | 2016-09-20 | 2016-09-20 | The device that crushes of safety unit of tractor intensity test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206235454U true CN206235454U (en) | 2017-06-09 |
Family
ID=58982057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621063777.3U Withdrawn - After Issue CN206235454U (en) | 2016-09-20 | 2016-09-20 | The device that crushes of safety unit of tractor intensity test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206235454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468619A (en) * | 2016-09-20 | 2017-03-01 | 山东省农业机械科学研究院 | The device that crushes of safety unit of tractor intensity test bench |
| CN113640015A (en) * | 2021-08-23 | 2021-11-12 | 南阳防爆电气研究所有限公司 | Vehicle rollover test stand |
-
2016
- 2016-09-20 CN CN201621063777.3U patent/CN206235454U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468619A (en) * | 2016-09-20 | 2017-03-01 | 山东省农业机械科学研究院 | The device that crushes of safety unit of tractor intensity test bench |
| CN106468619B (en) * | 2016-09-20 | 2019-02-01 | 山东省农业机械科学研究院 | The device that crushes of safety unit of tractor intensity test bench |
| CN113640015A (en) * | 2021-08-23 | 2021-11-12 | 南阳防爆电气研究所有限公司 | Vehicle rollover test stand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20190201 |
|
| AV01 | Patent right actively abandoned |