CN206419297U - A kind of experimental rig for hydraulic oil tank of forklift - Google Patents
A kind of experimental rig for hydraulic oil tank of forklift Download PDFInfo
- Publication number
- CN206419297U CN206419297U CN201621222750.4U CN201621222750U CN206419297U CN 206419297 U CN206419297 U CN 206419297U CN 201621222750 U CN201621222750 U CN 201621222750U CN 206419297 U CN206419297 U CN 206419297U
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- hydraulic oil
- cylinder
- experimental rig
- way magnetic
- magnetic valve
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Abstract
The utility model provides a kind of experimental rig for hydraulic oil tank of forklift, includes the rolling dolly of fixed subject hydraulic oil container, and the rolling dolly, which is slided, to be set in orbit, and one end on the track is vertically installed with staking, other end level and is installed with cylinder；The upper/lower terminal of the staking is installed with upper roller and lower sheave group respectively, the by-level of staking sets up the pendant rack having along its vertical movement, one end of the pendant rack and rope is connected, and the other end of rope is sequentially passed through after upper roller, lower sheave group and is connected with rolling dolly；The cylinder rod of the cylinder is connected by lifting hook device with rolling dolly, is installed with cylinder rod on the casing wall of cylinder and is rolled the separated tripping gear of dolly.The present apparatus can simulate hydraulic oil in subject hydraulic oil container bringing to a halt, fast lifting, hurtle down action, so as to realize the optimization to hydraulic oil container, the purpose of raising hydraulic oil container assembly reliability.
Description
Technical field
The utility model is related to a kind of hydraulic oil tank of forklift, and in particular to a kind of experiment for hydraulic oil tank of forklift is filled
Put.
Background technology
Hydraulic oil container is the important composition part of fork truck, is by fuel sucking pipe, oil return pipe, sealing gasket, Ventilated cap, oil filler etc.
Parts are constituted.Due to fork truck when in use, oily the temperature inside the box is higher and hydraulic oil can follow vehicle random in fuel tank
Rock, such as when fork truck carries out raising work, hydraulic oil can be drawn onto in lift oil tank moment, and is declined in fork truck
During work, hydraulic oil can return to fuel tank moment again, so as to can cause that inside hydraulic oil container a certain amount of pressure change can be produced.For
It can be good at judging the performance of hydraulic oil container assembly and parts, and convenient understand and research hydraulic oil exists
Situation is rocked in fuel tank, it would be desirable to which one can simulate hydraulic oil container under the various working conditions of fork truck under fork truck difference operating mode
Multi-function test stand, the reliability test that hydraulic oil container assembly and each parts are repeated, including durability, sealing
Property, thermal diffusivity etc., be finally reached selection or improve optimal parts, improve the purpose of hydraulic oil container assembly reliability.
The content of the invention
It is an object of the invention to provide a kind of experimental rig for hydraulic oil tank of forklift, the various working conditions of fork truck are simulated
The properties of lower hydraulic oil container, reach selection or improve optimal parts, improve the purpose of hydraulic oil container assembly reliability.
The technical solution of the utility model is as follows：
A kind of experimental rig for hydraulic oil tank of forklift, includes the rolling dolly of fixed subject hydraulic oil container, the rolling
Dynamic dolly, which is slided, to be set in orbit, and one end on the track is vertically installed with staking, other end level and is installed with cylinder；Institute
The upper/lower terminal for stating staking is installed with upper roller and lower sheave group respectively, and the by-level of staking, which is set up, vertical along its
One end connection of the pendant rack of motion, the pendant rack and rope, the other end of rope is sequentially passed through after upper roller, lower sheave group
It is connected with rolling dolly；The cylinder rod of the cylinder is connected by lifting hook device with rolling dolly, is installed with the casing wall of cylinder
By cylinder rod and the separated tripping gear of rolling dolly.
Further scheme, the subject hydraulic oil container pass sequentially through the first two-position three way magnetic valve, oil pump, the two or two three
Three-way electromagnetic valve is connected with heating fuel tank；The power end of first two-position three way magnetic valve and the second two-position three way magnetic valve with
Auxiliary reclay is connected.
Further scheme, two oil inlets of first two-position three way magnetic valve respectively with subject hydraulic oil container, heating
Fuel tank is connected, and the oil-out of the first two-position three way magnetic valve is connected by the oil inlet of oil pump and the second two-position three way magnetic valve,
Two oil-outs of the second two-position three way magnetic valve are connected with subject hydraulic oil container, heating fuel tank respectively.
More excellent, heater is provided with the heating fuel tank, the oil pump is driven by motor；The oil pump and second
Overflow valve is provided between two-position three way magnetic valve, the port of export of the overflow valve is connected with heating fuel tank；The subject hydraulic oil
Case is the casing of closing, and its side wall is provided with observation window and oil level indicator, and the top of subject hydraulic oil container is provided with pressure test hole；Institute
That states subject hydraulic oil container is connected to quick-release connector into and out of hydraulic fluid port.
Further scheme, the lifting hook device includes being installed in the stay hook for rolling dolly end and is installed in cylinder rod end
The fixed plate of head, the top of the fixed plate is connected with the middle of drag hook, the drag hook by rotating shaft runs through limited location post.
Further scheme, the tail end of the stay hook is installed with arc-shaped transition plate, and the two ends of the drag hook are installed with
Nahlock.
Further scheme, the tripping gear includes being installed with the support being installed on the casing wall of cylinder, the support
Top is to the inclined unhook baffle plate in lifting hook device direction.
Further scheme, the bottom of the subject hydraulic oil container carries out spiral shell by fuel tank mounting bracket with rolling the top of dolly
Bolt is fixedly connected；The cylinder installs in orbit by cylinder mounting seat.
Further scheme, the bottom of the pendant rack is connected with pendant thing.Pendant thing be in order to add pendant rack weight.It is logical
Cross rope with roll dolly be connected, realize pendant rack with pendant thing the movement of falling object be converted into roll dolly it is in orbit
Linear motion.
Further scheme, Rubber shock-absorbing pad is installed between lower sheave group and track.
Be tested hydraulic oil container is connected to quick-release connector into and out of hydraulic fluid port, can conveniently be tested hydraulic oil container and first
The quick connection of two-position three way magnetic valve and the second two-position three way magnetic valve is installed.
It is tested hydraulic oil container and is provided with observation window, oil level indicator and pressure test hole, wherein peep hole is with transparent material
It is connected with subject hydraulic oil container and ensures its sealing, by peep hole it is observed that hydraulic oil is respectively tried in subject fuel tank
The motion conditions and rule tested under operating mode.Oil level indicator can easily know the amount of hydraulic oil in subject fuel tank.Pressure test hole
To be convenient for measuring the pressure condition being tested under various operating modes in hydraulic oil container.
So the present apparatus can not only simulate real motion feelings of the hydraulic oil in the case of bringing to a halt in subject hydraulic oil container
Condition, is also emptied, moment oil return and heating function with hydraulic oil moment, for simulate fast lifting of the fork truck under high temperature oil,
Hurtle down action, so as to realize the optimization to hydraulic oil container, improves the purpose of hydraulic oil container assembly reliability.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is fuel tank lifting hook device and automatic decoupling device connection diagram in the utility model；
Fig. 3 is hydraulic schematic diagram of the present utility model；
Fig. 4 turns 45 ° of schematic diagrames for subject hydraulic oil container in Fig. 1 to A directions；
Fig. 5 turns 45 ° of schematic diagrames for subject hydraulic oil container in Fig. 1 to B directions.
In figure：1- upper rollers, 2- stakings, 3- pendant racks, 4- pendant things, 5- lower sheave groups, 6- tracks, 7- rubber shock-absorbings
Pad, 8- rolling dollies, 9- ropes, 10- fuel tank mounting brackets, 11- subject hydraulic oil containers, 11.1- observation windows, 11.2- oil level indicators,
11.3- pressure tests hole, 11.4- quick-release connectors, 12- lifting hook devices, 12.1- stay hooks, 12.2- drag hooks, 12.3- limited posts,
12.4- rotating shafts, 12.5- fixed plates, 12.6- arc-shaped transition plates, 12.7- nahlocks；13- cylinders, 13.1- cylinder rods, 14- cylinders peace
Fill seat, 15- tripping gears, 15.1- supports, 15.2- unhook baffle plates；16- heaters, 17- heating fuel tanks, 18.1- the one or two
Three-way magnetic valve, the two-position three way magnetic valves of 18.2- second, 19- overflow valves, 20- oil pumps, 21- motors, 22- auxiliary reclays.
Embodiment
Below in conjunction with the accompanying drawings, by embodiment, the utility model is further described.
As shown in figure 1, a kind of experimental rig for hydraulic oil tank of forklift, includes the rolling of fixed subject hydraulic oil container 11
Dolly 8, the rolling dolly 8, which is slided, to be located on track 6, and one end on the track 6 is vertically installed with staking 2, the other end
Level is installed with cylinder 13；The upper/lower terminal of the staking 2 is installed with upper roller 1 and lower sheave group 5 respectively, staking 2
By-level set up have along its vertical movement pendant rack 3, it is described pendant rack 3 be connected with one end of rope 9, rope 9 it is another
End sequentially pass through after upper roller 1, lower sheave group 5 with roll dolly 8 be connected；The cylinder rod 13.1 of the cylinder 13 is filled by drag hook
Put 12 and be connected with rolling dolly 8, be installed with cylinder rod 13.1 on the casing wall of cylinder 13 and roll the separated tripping gear of dolly 8
15。
As shown in figure 3, subject hydraulic oil container 11 passes sequentially through the first two-position three way magnetic valve 18.1, oil pump the 20, the 2nd 2
Position-3-way solenoid valve 18.2 is connected with heating fuel tank 17；The two-position three-way electromagnetic of first two-position three way magnetic valve 18.1 and second
The power end of valve 18.2 is connected with auxiliary reclay 22.
Further scheme, two oil inlets of first two-position three way magnetic valve 18.1 respectively with subject hydraulic oil container
11st, heating fuel tank 17 is connected, and the oil-out of the first two-position three way magnetic valve 18.1 passes through the two-position three-way electromagnetic of oil pump 20 and second
The oil inlet connection of valve 18.2, two oil-outs of the second two-position three way magnetic valve 18.2 are respectively with being tested hydraulic oil container 11, heating
Fuel tank 17 is connected.
More excellent, heater 16 is provided with the heating fuel tank 17, the oil pump 20 is driven by motor 21；The oil
Overflow valve 19, the port of export and the heating fuel tank 17 of the overflow valve 19 are provided between the two-position three way magnetic valve 18.2 of pump 20 and second
Connection；The subject hydraulic oil container 11 is the casing of closing, and its side wall is provided with observation window 11.1 and oil level indicator 11.2, by test solution
The top for pressing oil case 11 is provided with pressure test hole 11.3；The subject hydraulic oil container 11 is connected to quick change into and out of hydraulic fluid port
Joint 11.4.
As shown in Fig. 2 lifting hook device 12 includes being installed in the stay hook 12.1 for rolling the end of dolly 8 and is installed in cylinder rod
The fixed plate 12.5 of 13.1 terminations, the top of the fixed plate 12.5 is connected with drag hook 12.2, the drag hook by rotating shaft 12.4
Run through limited location post 12.3 in the middle of 12.2.
The tail end of stay hook 12.1 is installed with arc-shaped transition plate 12.6, and the two ends of the drag hook 12.2 are installed with nahlock
12.7。
Further scheme, the tripping gear 15 includes the support 15.1 being installed on the casing wall of cylinder 13, the support
Top is installed with 15.1 to the inclined unhook baffle plate 15.2 in the direction of lifting hook device 12.
Further scheme, the bottom of the subject hydraulic oil container 11 passes through fuel tank mounting bracket 10 and the top for rolling dolly 8
Bolt is carried out to be fixedly connected；The cylinder 13 is arranged on track 6 by cylinder mounting seat 14.
Further scheme, the bottom of the pendant rack 3 is connected with pendant thing 4.Pendant thing be in order to add pendant rack weight.
It is connected by rope with rolling dolly, the movement of falling object for realizing pendant rack and pendant thing is converted into rolling dolly in track
On linear motion.
Further scheme, is installed with Rubber shock-absorbing pad 7 between lower sheave group 5 and track 6.
Because subject hydraulic oil container 11 is welded on fuel tank mounting bracket 10, fuel tank mounting bracket 10 is mounted by means of bolts on
Roll on dolly 8.Fuel tank mounting bracket 10 and roll can left and right 45 degree of angle of adjustment between dolly 8（A, B both direction in Fig. 1
Respectively adjust 45 degree of angles）, for simulating vehicle respectively to operating mode when left sharp turn and sharp right-hand bend, it is illustrated in figure 4 to A and turns
45 ° of simulation vehicles are illustrated in figure 5 to B to left sharp turn and turn 45 ° of simulation vehicle sharp right-hand bends.
1st, the present apparatus can simulate real motion situation of the hydraulic oil in the case of bringing to a halt in subject hydraulic oil container, specifically
It is as follows：
When compressed gas enters the rodless cavity of cylinder 13 from the air admission hole of rodless cavity, cylinder rod 13.1 will be pushed out,
Cylinder rod drives lifting hook device 12 to be moved to the direction for rolling dolly 8.Drag hook 12.2 is connected to fixed plate by rotating shaft 12.4
12.5 top, drag hook 12.2 can be rotated freely around rotating shaft 12.4.Because the left side of drag hook 12.2 is than right side weight, so drawing
The trend around the rotate counterclockwise of rotating shaft 12.4 is carved with during hook.Limited post 12.3 is arranged on drag hook 12.2 by thread forms,
Its length for stretching out the bottom of drag hook 12.2 just can be arbitrarily adjusted by rotary stopper post 12.3（Such as the length of H in Fig. 2）, so that
It can ensure parallel with track 6 at the time of the upper plane of drag hook 12.2.
When cylinder 13 reaches range, drag hook 12.2 is contacted with positioned at the stay hook 12.1 for rolling the rear end of dolly 8, and
Inside on the right side of it in the presence of arc-shaped transition plate 12.6 automatically into stay hook 12.1, and in drag hook 12.2 from recast
Reached again under parallel with track 6.When cylinder 13 carries out next action, when compressed gas enters the rod chamber of cylinder 13,
Drag hook 12.2 will pull rolling dolly 8 to move right, then roll dolly 8 and drive rope 9 to draw pendant rack 3 together with pendant thing 4
Rise, its height being pulled up is equal to the stroke of cylinder 13.
When cylinder rod 13.1 withdraws and approached the tripping gear 15 being fixed on cylinder casing wall, the right-hand member circle of drag hook 12.2
Block 12.7 will be contacted with unhook baffle plate 15.2, because unhook baffle plate 15.2 and track 6 have certain angle, can force drag hook
12.2 12.4 are turned clockwise around the shaft, so as to cause the left side of drag hook 12.2 to be lifted, when lifting to a certain extent, are drawn
Hook 12.2 departs from stay hook 12.1, that is, rolls dolly 8 and depart from cylinder 13, fast under the Action of Gravity Field of pendant rack 3 and pendant thing 4
Speed declines, and pulls rolling dolly 8 by rope 9, makes subject hydraulic oil container 11 accelerate the left side to track 6 to move, and finally
Fiercely bump against with Rubber shock-absorbing pad 7 and stop rapidly, now complete a test cycle.
Then compressed air repeats in the case where solenoid directional control valve adds pulse signal control or under PLC controls, discontinuously enters gas
The rodless cavity and rod chamber of cylinder, so that above action is repeated, shock rubber of the subject hydraulic oil container 11 with rolling dolly 8 again
Glue beam 7, so as to simulate real motion situation of the hydraulic oil in the case of bringing to a halt in subject hydraulic oil container 11, and is examined
Survey the sealing property of each parts in subject hydraulic oil container 11.
Ibid, when along A, B both direction, respectively 45 degree of adjustment carries out bump tests between fuel tank mounting bracket 10 and rolling dolly 8
When, can simulate respectively fork truck in the case of left and right zig zag in hydraulic oil container hydraulic oil motion conditions.
2nd, this experimental rig be also emptied with hydraulic oil moment, moment oil return and heating function, for simulating fork truck in height
Fast lifting under warm oil, hurtle down action.As shown in Figure 3：
Before being tested, hydraulic oil is all filled in subject hydraulic oil container 11 and heating fuel tank 17, while heating fuel tank 17
Interior hydraulic oil is heated by heater 16, and is maintained at the temperature of setting.When testing progress, motor 21 drives oil pump 20
Start, oil can be entered by the A mouths of fuel sucking pipe into the first two-position three way magnetic valve 18.1 by being tested the hydraulic oil of hydraulic oil container 11
The oil inlet C of pump 20, then enters the G mouths of the second two-position three way magnetic valve 18.2, then from it by the oil-out D of oil pump 20
H mouthfuls out enter in heating fuel tank 17.This action will simulate the fork truck situation that hydraulic oil is emptied by moment under raising operating mode.
The power source of first two-position three way magnetic valve 18.1 and the second two-position three way magnetic valve 18.2 is in auxiliary reclay
22, auxiliary reclay 22 plays provides alternate working power signal for two magnetic valves.When the alternate change of auxiliary reclay 22
During the power supply of two magnetic valves, the first two-position three way magnetic valve 18.1 and the second two-position three way magnetic valve 18.2 commutate simultaneously, this
When, the B mouths that hydraulic oil will enter the first two-position three way magnetic valve 18.1 by the fuel sucking pipe of heating fuel tank 17 enter oil pump 20
Oil inlet C, then from D mouthfuls of oil pump out after enter the G mouths of the second two-position three way magnetic valve 18.2, finally come out from its I mouthfuls
After return to subject hydraulic oil container 11 in.So as to simulate the operating mode that fork truck is tested fuel tank moment oil return in down maneuver.
Keep each oil suction identical with the amount of oil return under the control of auxiliary reclay 22 simultaneously and less than subject hydraulic oil
The volume of case 11.Oil suction each time and oil return are a test cycle, and the high temperature oil after each circulation in heating fuel tank 17 will
It is injected into subject hydraulic oil container 11, so as to reach that oil temperature is identical in whole system.Overflow is added in this other hydraulic circuit
Valve 19, when the first two-position three way magnetic valve 18.1 and asynchronous the second two-position three way magnetic valve 18.2 appearance commutation, will make
System pressure is excessive in this oil circuit, when pressure is excessive in system, and hydraulic oil can return to heating oil by the E-F mouths of overflow valve 19
In case 17, that is to say, that overflow valve 19 serves system pressure protective effect.When circulating according further to total time on test and every time
Between it is estimated that total test number (TN), more than action can investigate hydraulic oil container assembly and parts in forklift lifting and
Whereabouts operating mode seal performance energy.
Above example is not limited only to protection domain of the present utility model, all to be based on basic thought of the present utility model
And modify or change belong to protection domain of the present utility model.
Claims (10)
1. a kind of experimental rig for hydraulic oil tank of forklift, including fixed subject hydraulic oil container（11）Rolling dolly（8）, its
It is characterised by：The rolling dolly（8）Slip is located at track（6）On, the track（6）On one end be vertically installed with staking
（2）, other end level be installed with cylinder（13）；The staking（2）Upper/lower terminal be installed with upper roller respectively（1）With under
Assembly pulley（5）, staking（2）By-level set up have along its vertical movement pendant rack（3）, the pendant rack（3）With rope
Rope（9）One end connection, rope（9）The other end sequentially pass through upper roller（1）, lower sheave group（5）Afterwards with rolling dolly（8）Even
Connect；The cylinder（13）Cylinder rod（13.1）Pass through lifting hook device（12）With rolling dolly（8）Connection, cylinder（13）Casing wall
On be installed with cylinder rod（13.1）With rolling dolly（8）Separated tripping gear（15）.
2. a kind of experimental rig for hydraulic oil tank of forklift according to claim 1, it is characterised in that：It is described by test solution
Press oil case（11）Pass sequentially through the first two-position three way magnetic valve（18.1）, oil pump（20）, the second two-position three way magnetic valve（18.2）
And heating fuel tank（17）Connection；First two-position three way magnetic valve（18.1）With the second two-position three way magnetic valve（18.2）Electricity
Source is and auxiliary reclay（22）Connection.
3. a kind of experimental rig for hydraulic oil tank of forklift according to claim 2, it is characterised in that：Described 1st
Position-3-way solenoid valve（18.1）Two oil inlets respectively with subject hydraulic oil container（11）, heating fuel tank（17）Connection, the one or two
Three-way magnetic valve（18.1）Oil-out pass through oil pump（20）With the second two-position three way magnetic valve（18.2）Oil inlet connection, the
Two two-position three way magnetic valves（18.2）Two oil-outs respectively with subject hydraulic oil container（11）, heating fuel tank（17）Connection.
4. a kind of experimental rig for hydraulic oil tank of forklift according to claim 3, it is characterised in that：The heating oil
Case（17）It is interior to be provided with heater（16）, the oil pump（20）By motor（21）It is driven；The oil pump（20）With the two or two
Three-way magnetic valve（18.2）Between be provided with overflow valve（19）, the overflow valve（19）The port of export and heating fuel tank（17）Connection；
The subject hydraulic oil container（11）For the casing of closing, its side wall is provided with observation window（11.1）And oil level indicator（11.2）, subject
Hydraulic oil container（11）Top be provided with pressure test hole（11.3）；The subject hydraulic oil container（11）Connect respectively into and out of hydraulic fluid port
It is connected to quick-release connector（11.4）.
5. a kind of experimental rig for hydraulic oil tank of forklift according to claim 1, it is characterised in that：The drag hook dress
Put（12）Including being installed in rolling dolly（8）The stay hook of end（12.1）Be installed in cylinder rod（13.1）The fixed plate of termination
（12.5）, the fixed plate（12.5）Top pass through rotating shaft（12.4）It is connected with drag hook（12.2）, the drag hook（12.2）In
Between run through limited location post（12.3）.
6. a kind of experimental rig for hydraulic oil tank of forklift according to claim 5, it is characterised in that：The stay hook
（12.1）Tail end be installed with arc-shaped transition plate（12.6）, the drag hook（12.2）Two ends be installed with nahlock（12.7）.
7. a kind of experimental rig for hydraulic oil tank of forklift according to claim 1, it is characterised in that：The dress that breaks off relations
Put（15）Including being installed in cylinder（13）Casing wall on support（15.1）, the support（15.1）On be installed with top to drag hook
Device（12）The inclined unhook baffle plate in direction（15.2）.
8. a kind of experimental rig for hydraulic oil tank of forklift according to claim 1, it is characterised in that：It is described by test solution
Press oil case（11）Bottom pass through fuel tank mounting bracket（10）With rolling dolly（8）Top carry out bolt be fixedly connected；The gas
Cylinder（13）Pass through cylinder mounting seat（14）Installed in track（6）On.
9. a kind of experimental rig for hydraulic oil tank of forklift according to claim 1, it is characterised in that：The pendant rack
（3）Bottom be connected with pendant thing（4）.
10. a kind of experimental rig for hydraulic oil tank of forklift according to claim 1, it is characterised in that：Positioned at downslide
Wheel group（5）And track（6）Between be installed with Rubber shock-absorbing pad（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621222750.4U CN206419297U (en) | 2016-11-14 | 2016-11-14 | A kind of experimental rig for hydraulic oil tank of forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621222750.4U CN206419297U (en) | 2016-11-14 | 2016-11-14 | A kind of experimental rig for hydraulic oil tank of forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419297U true CN206419297U (en) | 2017-08-18 |
Family
ID=59577392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621222750.4U Withdrawn - After Issue CN206419297U (en) | 2016-11-14 | 2016-11-14 | A kind of experimental rig for hydraulic oil tank of forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206419297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523472A (en) * | 2016-11-14 | 2017-03-22 | 安徽合力股份有限公司 | Testing device for hydraulic oil tank of forklift |
-
2016
- 2016-11-14 CN CN201621222750.4U patent/CN206419297U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523472A (en) * | 2016-11-14 | 2017-03-22 | 安徽合力股份有限公司 | Testing device for hydraulic oil tank of forklift |
| CN106523472B (en) * | 2016-11-14 | 2018-05-29 | 安徽合力股份有限公司 | A kind of experimental rig for hydraulic oil tank of forklift |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170818 Effective date of abandoning: 20180529 |