CN204286805U - Safety unit of tractor intensity test bench mechanical system - Google Patents
Safety unit of tractor intensity test bench mechanical system Download PDFInfo
- Publication number
- CN204286805U CN204286805U CN201420657632.0U CN201420657632U CN204286805U CN 204286805 U CN204286805 U CN 204286805U CN 201420657632 U CN201420657632 U CN 201420657632U CN 204286805 U CN204286805 U CN 204286805U
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- China
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- hydraulic cylinder
- test bench
- mechanical system
- safety unit
- intensity test
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Abstract
The utility model discloses a kind of safety unit of tractor intensity test bench mechanical system, comprises side ceiling hold, rear ceiling hold and track, side ceiling hold is provided with top, side hydraulic cylinder, pushes up hydraulic cylinder after rear ceiling hold is provided with; Side top hydraulic cylinder and rear top hydraulic cylinder arrange displacement mechanism respectively; Be separately installed with adjustment seat in the arranged on left and right sides of described track, left and right two adjustment seats be hinged with respectively left hydraulic cylinder and right hydraulic cylinder.The utility model can complete twice longitudinal loading experiment, the side direction loading experiment of safety unit of tractor intensity test bench mechanical system and the intensity of testing and checking safety unit of tractor intensity test bench mechanical system of crushing for twice.The utility model structure is simple, easy to operate, and experimentation controls the acting force applied by control system, improve the security of experimentation.
Description
Technical field
The utility model relates to a kind of tractor to be prevented looking through survey technology field, is specifically related to a kind of safety unit of tractor intensity test bench mechanical system.
Background technology
Safety unit of tractor intensity test bench mechanical system effectively can reduce the injury to driver when rollover occurs tractor, therefore, from 2009, according to national tractor security legislation, " from 1 day July in 2009, the wheeled tractor of China's domestic production should be able to be equipped with the requirement of roll-over protective structure ".Whether the design strength of the anti-translation frame that tractor is equipped with meets Standard, thus the possibility causing driver injured overturn accident is reduced to minimum, and it is crucial for how checking it.But also there is no ripe product for how detecting safety unit of tractor intensity test bench mechanical system at present.
Utility model content
The trouble that the utility model exists for current safety unit of tractor intensity test bench mechanical system testing process and difficulty, and lack the safety unit of tractor intensity test bench mechanical system testing tool problem of system, a kind of safety unit of tractor intensity test bench mechanical system is provided, utilize longitudinal loading experiment, side direction loading experiment and crush experiment respectively from front and back, sidepiece and top to safety unit of tractor intensity test bench mechanical system imposed load, determine that whether safety unit of tractor intensity test bench mechanical system up to standard.
The technical solution of the utility model is: a kind of safety unit of tractor intensity test bench mechanical system, comprises side ceiling hold and rear ceiling hold, and track, it is characterized in that: two stands keeps being arranged vertically, and track and one of them support keeping parallelism are arranged; Side ceiling hold is provided with top, side hydraulic cylinder, after rear ceiling hold is provided with, pushes up hydraulic cylinder; Install synchronous left hydraulic cylinder and right hydraulic cylinder respectively in the arranged on left and right sides of described track, and be provided with the crossbeam that crushes, the two ends of the crossbeam that crushes are connected with the upper end of described left and right hydraulic cylinder.
Described side top hydraulic cylinder and rear top hydraulic cylinder are respectively arranged with the displacement mechanism that can move horizontally with vertically movement; Be separately installed with adjustment seat in the arranged on left and right sides of described track, left and right two adjustment seats be hinged with respectively left hydraulic cylinder and right hydraulic cylinder.
The displacement mechanism of side ceiling hold and the displacement mechanism of rear ceiling hold, all contain the drive motor of end fixed thereon, the output shaft of drive motor is connected with horizontal drive screw rod transmission afterwards by turning to of chain-wheel box, and the two ends of horizontal drive screw mandrel are connected with the vertical screw pair transmission of both sides afterwards by turning to of two end tooth roller boxs; The both sides of described side ceiling hold and rear ceiling hold arrange column respectively, and each column is provided with the sliding sleeve that can slide up and down, and on sliding sleeve, solid welding has Fixed Nut block, and described vertical screw pair is threaded with corresponding Fixed Nut block; Be connected with connecting rod between the sliding sleeve of both sides, described side top hydraulic cylinder and rear top hydraulic cylinder are arranged in respective link; Or the two ends of connecting link are fixed with positioning seat respectively, and positioning seat is provided with axis hole, in the mesopore of a corresponding positioning seat of the secondary Matching installation of horizontal screw lead; Horizontal screw lead pair is provided with movable wire mother tuber, and horizontal screw lead pair is threaded with movable wire mother tuber; The end of described side top hydraulic cylinder or rear top hydraulic cylinder is fixed on movable wire mother tuber, is slidably matched between the rear end of this movable wire mother tuber and connecting link.
Push up the top of hydraulic cylinder and rear top hydraulic cylinder in described side, displacement transducer or pressure transducer can be installed.The top end of described left hydraulic cylinder and right hydraulic cylinder is connected with pulling force sensor.
Front-axle beam is respectively arranged with in the upside of described side ceiling hold and rear ceiling hold, in each of front beam being separately installed with can along the electric block of front-axle beam translation, the lifting rope lower end of this electric block is connected with hook, and the hook connecting of each electric block is connected to the cylinder barrel front end of side top hydraulic cylinder and rear top hydraulic cylinder.
The utility model can complete twice longitudinal loading experiment, the side direction loading experiment of safety unit of tractor intensity test bench mechanical system and the intensity of testing and checking safety unit of tractor intensity test bench mechanical system of crushing for twice.The utility model structure is simple, easy to operate, and experimentation controls the acting force applied by control system, improve the security of experimentation.
Accompanying drawing explanation
Fig. 1 is mechanical support frame structural representation of the present utility model.
Number in the figure: 1 is control system, 2 is track, 3 is hydraulic power unit, 4 is fluid pressure line, 5 is pressure transducer, 6 is the crossbeam that crushes, 7 is that horizontal screw lead is secondary, 8 is vertical lead screw pair, 9 is left hydraulic cylinder, 10 is right hydraulic cylinder, 11 is rear top hydraulic cylinder, 12 is top, side hydraulic cylinder, 13 is rear ceiling hold, 14 is side ceiling hold, 15 is pulling force sensor, 25 is drive motor, 26 is electric block, 27 is chain-wheel box, 28 is horizontal drive screw mandrel, 29 is end tooth roller box, 30 is handwheel, 31 is bearing, 32 is Fixed Nut block, 33 is sliding sleeve, 34 is front-axle beam, 35 is adjustment seat, 36 is movable wire mother tuber, 37 is slide fastener or wire rope.
Embodiment
Following embodiment of the present utility model is illustrated below in conjunction with accompanying drawing.
A kind of safety unit of tractor intensity test bench mechanical system, as shown in Figure 1, comprises hydraulic system, control system 1, bracing frame and track 2; Hydraulic system comprises hydraulic cylinder, hydraulic power unit 3, fluid pressure line 4 and control system.
Hydraulic cylinder comprises left hydraulic cylinder 9, right hydraulic cylinder 10, rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12.Left hydraulic cylinder 9 and right hydraulic cylinder 10 are separately positioned on the left and right sides of track 2.Track 2 is made up of multiple rectangular steel pipe, and track 2 is bolted on mattess.Be provided with the crossbeam that crushes, the two ends of the crossbeam 6 that crushes are connected with the upper end of described left hydraulic cylinder 9 and right hydraulic cylinder 10, and the top end of described left hydraulic cylinder 9 and right hydraulic cylinder 10 is connected with pulling force sensor 15.Left hydraulic cylinder 9 and right hydraulic cylinder 10 apply pulling force by crossbeam 6 pairs of safety unit of tractor intensity test bench mechanical systems of crushing, and realize the crushing test to safety unit of tractor intensity test bench mechanical system.
Bracing frame comprises rear topmast support 13 and side topmast support 14, rear topmast support 13 and the orthogonal setting of side topmast support 14 and be bolted on mattess.Rear topmast support 13 is vertical with track 2, and side topmast support 14 is parallel with track 2.Side top hydraulic cylinder and rear top hydraulic cylinder are respectively arranged with the displacement mechanism that can move horizontally with vertically movement.The displacement mechanism of side ceiling hold and the displacement mechanism of rear ceiling hold all contain the drive motor of end fixed thereon, the output shaft of drive motor is in transmission connection with horizontal drive screw mandrel 28 by after the turning to of chain-wheel box 27, and the two ends of horizontal drive screw mandrel 28 are connected with the vertical screw pair transmission of both sides afterwards by turning to of two end tooth roller boxs 29; The both sides of described side ceiling hold and rear ceiling hold arrange column respectively, and each column is provided with the sliding sleeve 33 that can slide up and down, and on sliding sleeve 33, solid welding has Fixed Nut block 32, and described vertical screw pair is threaded with corresponding Fixed Nut block 32; Be connected with connecting rod between both sides sliding sleeve 33, described side top hydraulic cylinder and rear top hydraulic cylinder are arranged in respective link; Or the two ends of connecting link are fixed with positioning seat respectively, and positioning seat is provided with axis hole, in the mesopore of a corresponding positioning seat of the secondary Matching installation of horizontal screw lead; Horizontal screw lead pair is provided with movable wire mother tuber, and horizontal screw lead pair is threaded with movable wire mother tuber; The end of described side top hydraulic cylinder or rear top hydraulic cylinder is fixed on movable wire mother tuber, is slidably matched between the rear end of this movable wire mother tuber and connecting link.In horizontal screw lead secondary one end, handwheel 30 is installed.Utilize the horizontal lead screw pair 7 of handwheel 30 rotation, its movable wire mother tuber can move along with the rotation of leading screw, thus after driving, top hydraulic cylinder 11 or top, side hydraulic cylinder 12 move left and right.In like manner, utilize drive motor to drive vertical lead screw pair 8 to rotate, its Fixed Nut block 32 can move along with the rotation of vertical lead screw pair, thus drives sliding sleeve 33 to move up and down, and then drives horizontal screw lead pair 7 to move up and down.Therefore, the acting in conjunction of horizontal screw lead secondary 7 and vertical lead screw pair 8 achieves the level of rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12 and moves up and down.
Rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12 horizontal extension, apply longitudinal pressure and lateral pressure to tractor respectively.Rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12 are provided with pressure transducer.Horizontal screw lead secondary 7 and vertical lead screw pair 8 are all connected with electric block 25, and electric block 25 is separately positioned on the top of rear topmast support 13 and side topmast support 14.Horizontal screw lead secondary 7 and vertical lead screw pair 8 can be made to rotate by controlling electric block 25, thus push up the left and right of hydraulic cylinder 11 and top, side hydraulic cylinder 12 after adjustment and move up and down.
The top of rear topmast support 13 and side topmast support 14 is provided with screw mandrel, and screw mandrel is fixed with lifting rope, and lifting rope lower end is provided with hook 15, can control lifting rope length by electric block 25, thus the height of adjustment hook 15.In order to overcome Action of Gravity Field, hook 15 tangles the end of rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12, keeps the horizontal extension of rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12.Rear topmast support 13 and side topmast support 14 are all bolted on mattess, in order to ensure the stability of rear topmast support 13 and side topmast support 14 further, rear topmast support 13 and side topmast support 14 be all provided with after-poppet below.
Control system 1 comprises control section, part of data acquisition and display section.Control system is connected with pressure transducer, hydraulic power unit 3 and electric block 25 respectively.Control section according to the position of tractor, can control the upper and lower and side-to-side movement of rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12 by electric block 25, thus makes rear top hydraulic cylinder 11 and top, side hydraulic cylinder 12 arrive suitable application point.
The course of work: first tractor is placed on the correct position on track 2, utilizes Special tractor stationary installation and foot bolt to be fixed on mattess by tractor; Be arranged on tractor by safety unit of tractor intensity test bench mechanical system, displacement transducer is arranged in safety unit of tractor intensity test bench mechanical system; The master switch of opening control 1 and hydraulic system, carries out crushing experiment, primary side for twice to loading experiment and twice longitudinal loading experiment.
Wherein, the detailed process of testing of crushing is: the crossbeam that will crush is put into safety unit of tractor intensity test bench mechanical system place and fixed; By regulating left hydraulic cylinder 9 and right hydraulic cylinder 10, left hydraulic cylinder 9 and right hydraulic cylinder 10 being moved to the correct position of tractor, using chain by the connection of crush crossbeam and left hydraulic cylinder 9 and right hydraulic cylinder 10; By control system 1, electric hydraulic control valve two is opened, hydraulic power unit 3 provides the hydraulic oil of required pressure, hydraulic oil is incorporated into left hydraulic cylinder 9 and right hydraulic cylinder 10 by fluid pressure line 4, and left hydraulic cylinder 9 and right hydraulic cylinder 10 can stretching motions thus apply acting force to safety unit of tractor intensity test bench mechanical system.
Experiment of crushing for twice crossbeam that crushes is separately positioned on upper and rear portion, the top, front portion of safety unit of tractor intensity test bench mechanical system and pushes up, when the applied pressure of left hydraulic cylinder 9 and right hydraulic cylinder 10 is 20m
ttime, wherein m
tfor tractor reference mass, this acting force at least keeps 5s after any distortion visually of safety unit of tractor intensity test bench mechanical system stops, and any parts of tractor all do not enter clearance zone, show that this safety unit of tractor intensity test bench mechanical system meets the requirements.
The detailed process of side direction loading experiment: by regulating the motor of top, side hydraulic cylinder 12, side is pushed up the correct position that hydraulic cylinder 12 moves to safety unit of tractor intensity test bench mechanical system on side topmast support 14, then the hook 15 that topmast support 14 top, side is hung is utilized, hang up the front end of top, side hydraulic cylinder 12, lifting rope on adjustment hook 15 makes side push up hydraulic cylinder 12 maintenance level, and top, side hydraulic cylinder 12 contacts with safety unit of tractor intensity test bench mechanical system; By control system 1, electric hydraulic control valve three is opened, hydraulic power unit 3 provides the hydraulic oil of required pressure, fluid pressure line 4 hydraulic oil is incorporated into side top hydraulic cylinder 12, side top hydraulic cylinder 12 can stretching motion thus to safety unit of tractor intensity test bench mechanical system apply acting force.
The side load that level applies is positioned at the sidepiece of safety unit of tractor intensity test bench mechanical system and perpendicular to longitudinal center face, load acts on 85mm place before the outside seat designator point of safety unit of tractor intensity test bench mechanical system; Safety unit of tractor intensity test bench mechanical system produces distortion under the promotion of top, side hydraulic cylinder 12, and the strain energy absorbed when safety unit of tractor intensity test bench mechanical system is equal to or greater than the input energy 1.75m of needs
t, when any parts of tractor do not enter clearance zone simultaneously, show that this safety unit of tractor intensity test bench mechanical system meets the requirements.
The detailed process of longitudinal loading experiment is: by regulating the motor of rear top hydraulic cylinder 11, by rear top hydraulic cylinder 11 upper and lower and side-to-side movement in the lead screw pair 8 of rear ceiling hold 13, until rear top hydraulic cylinder 11 is moved to suitable position, the hook 15 of topmast support 13 top hanging after then utilizing, the front end of top hydraulic cylinder 11 after hanging up, lifting rope on adjustment hook 15 makes rear top hydraulic cylinder 11 maintenance level, and rear top hydraulic cylinder 11 contacts with safety unit of tractor intensity test bench mechanical system; By control system 1, electric hydraulic control valve two is opened, hydraulic power unit 3 provides the hydraulic oil of required pressure, hydraulic oil is incorporated into rear top hydraulic cylinder 11 by fluid pressure line 4, rear top hydraulic cylinder 11 can stretching motion thus to safety unit of tractor intensity test bench mechanical system apply acting force.
The load applying safety unit of tractor intensity test bench mechanical system rear portion of longitudinal load test for the first time, safety unit of tractor intensity test bench mechanical system produces distortion under the promotion of rear top hydraulic cylinder 11, and the strain energy absorbed when safety unit of tractor intensity test bench mechanical system is equal to or greater than the input energy 1.4m of needs
t, when any position of tractor does not enter clearance zone simultaneously, show that this safety unit of tractor intensity test bench mechanical system meets the requirements.
The load loading direction of the longitudinal load test of second time with for the first time longitudinal loading direction is contrary, and from its angle farthest.Safety unit of tractor intensity test bench mechanical system produces distortion under the promotion of rear top hydraulic cylinder 11, and the strain energy absorbed when safety unit of tractor intensity test bench mechanical system is equal to or greater than the input energy 0.35m of needs
t, when any position of tractor does not enter clearance zone simultaneously, show that this safety unit of tractor intensity test bench mechanical system meets the requirements.
The order of five tests is: the experiment of crushing on the experiment of crushing for the first time on longitudinal load test, top, rear portion, side direction load test, anterior top, the longitudinal load test of second time.When five experiments all reach requirement, the safety unit of tractor intensity test bench mechanical system of test just meets Standard.
Claims (8)
1. a safety unit of tractor intensity test bench mechanical system, comprises side ceiling hold and rear ceiling hold, and track, it is characterized in that: two stands keeps being arranged vertically, and track and one of them support keeping parallelism are arranged; Side ceiling hold is provided with top, side hydraulic cylinder, after rear ceiling hold is provided with, pushes up hydraulic cylinder; Install synchronous left hydraulic cylinder and right hydraulic cylinder respectively in the arranged on left and right sides of described track, and be provided with the crossbeam that crushes, the two ends of the crossbeam that crushes are connected with the upper end of described left and right hydraulic cylinder.
2. safety unit of tractor intensity test bench mechanical system according to claim 1, is characterized in that: described side top hydraulic cylinder and rear top hydraulic cylinder are respectively arranged with the displacement mechanism that can move horizontally with vertically movement.
3. safety unit of tractor intensity test bench mechanical system according to claim 1, is characterized in that: top hydraulic cylinder is separately installed with adjustment seat in the arranged on left and right sides of described track, left and right two adjustment seats is hinged with respectively left hydraulic cylinder and right hydraulic cylinder.
4. safety unit of tractor intensity test bench mechanical system according to claim 2, it is characterized in that: the displacement mechanism of side ceiling hold and the displacement mechanism of rear ceiling hold, all contain the drive motor of end fixed thereon, the output shaft of drive motor is connected with horizontal drive screw rod transmission by after chain-wheel box, and the two ends of horizontal drive screw mandrel are connected with the vertical screw pair transmission of both sides afterwards by turning to of two end tooth roller boxs; The both sides of described side ceiling hold and rear ceiling hold arrange column respectively, and each column is provided with the sliding sleeve that can slide up and down, and on sliding sleeve, solid welding has Fixed Nut block, and described vertical screw pair is threaded with corresponding Fixed Nut block; Connecting rod is connected with between the sliding sleeve of both sides.
5. safety unit of tractor intensity test bench mechanical system according to claim 4, is characterized in that: described side top hydraulic cylinder and rear top hydraulic cylinder are arranged in respective link.
6. safety unit of tractor intensity test bench mechanical system according to claim 4, is characterized in that: the two ends of connecting link are fixed with positioning seat respectively, and positioning seat is provided with axis hole, in the mesopore of a corresponding positioning seat of the secondary Matching installation of horizontal screw lead; Horizontal screw lead pair is provided with movable wire mother tuber, and horizontal screw lead pair is threaded with movable wire mother tuber; The end of described side top hydraulic cylinder or rear top hydraulic cylinder is fixed on movable wire mother tuber, is slidably matched between the rear end of this movable wire mother tuber and connecting link.
7. the safety unit of tractor intensity test bench mechanical system according to claim 1 or 4 or 5 or 6, is characterized in that: the top of pushing up hydraulic cylinder and rear top hydraulic cylinder in described side, can be provided with displacement transducer or pressure transducer.
8. the safety unit of tractor intensity test bench mechanical system according to claim 1 or 3 or 4 or 5 or 6, it is characterized in that: be respectively arranged with front-axle beam in the upside of described side ceiling hold and rear ceiling hold, in each of front beam being separately installed with can along the electric block of front-axle beam translation, the lifting rope lower end of this electric block is connected with hook, and the hook connecting of each electric block is connected to the cylinder barrel front end of side top hydraulic cylinder and rear top hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657632.0U CN204286805U (en) | 2014-11-05 | 2014-11-05 | Safety unit of tractor intensity test bench mechanical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657632.0U CN204286805U (en) | 2014-11-05 | 2014-11-05 | Safety unit of tractor intensity test bench mechanical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204286805U true CN204286805U (en) | 2015-04-22 |
Family
ID=52869954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420657632.0U Expired - Fee Related CN204286805U (en) | 2014-11-05 | 2014-11-05 | Safety unit of tractor intensity test bench mechanical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204286805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155479A (en) * | 2021-04-19 | 2021-07-23 | 吉林大学 | Vehicle guardrail test electro-hydraulic servo cylinder large platform test bed |
-
2014
- 2014-11-05 CN CN201420657632.0U patent/CN204286805U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113155479A (en) * | 2021-04-19 | 2021-07-23 | 吉林大学 | Vehicle guardrail test electro-hydraulic servo cylinder large platform test bed |
| CN113155479B (en) * | 2021-04-19 | 2022-06-10 | 吉林大学 | Vehicle guardrail test electro-hydraulic servo cylinder large platform test bench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |