Utility model content
It, can be to injection head reality the purpose of this utility model is to provide one kind for injection head bidirectional loading
Biaxial loadings are applied, and simple in structure, easy to operate.
Technical solution is used by the utility model:One kind includes note for injection head bidirectional loading
Enter head, injection head is clamped with simulation connecting tube from top to bottom, and the lower end for simulating connecting tube is connected with hydraulic cylinder, and hydraulic cylinder passes through pipe
Line is connect with fuel tank, and oil supply unit is equipped in fuel tank;Pipeline includes the first pipeline and the second pipeline arranged side by side, the first pipeline
Lower end connect with oil supply unit, the first pipeline be equipped with load set and detection unit a;Second pipeline lower end and oil supply unit
Connection, the second pipeline are equipped with load setting and detection unit b.
The utility model is also characterized by
Oil supply unit, which includes, is located at the hydraulic control one-way valve close to hydraulic cylinder and the hydraulic pump close to fuel tank, hydraulic control one-way valve
One end of reversal valve is connected with, the other end of reversal valve is connected with overflow valve c, and hydraulic pump is equipped with filtering close to one end of fuel tank
Device, the other end of hydraulic pump are connected with check valve c, and check valve c is connect with reversal valve;Overflow valve c is connected with pressure detecting instrument c,
Check valve c is connect with pressure detecting instrument c.
Shut-off valve c is equipped between overflow valve c and pressure detecting instrument c, cut-off is equipped between check valve c and pressure detecting instrument c
Valve c.
Load is set and detection unit a includes overflow valve a and pressure detecting instrument a, and overflow valve a is arranged on the first pipeline
On, one end of overflow valve a is connect with pressure detecting instrument a, and the other end of overflow valve a is connected with check valve a, check valve a and pressure
Detector a connections;Shut-off valve a is equipped between overflow valve a and pressure detecting instrument a, is equipped between check valve a and pressure detecting instrument a
The shut-off valve a.
Load is set and detection unit b includes overflow valve b and pressure detecting instrument b, and overflow valve b is arranged on the second pipeline
On, one end of overflow valve b is connect with pressure detecting instrument b, and the other end of overflow valve b is connected with check valve b, check valve b and pressure
Detector b connections;Shut-off valve b is equipped between overflow valve b and pressure detecting instrument b, is equipped between check valve b and pressure detecting instrument b
Shut-off valve b.
Injection head includes stent, and the both sides of stent are equipped with clamping device, simulation connecting tube is clamped between clamping device.
Stent both sides are symmetrically connected with driving device by screw, and clamping device side has been connected by screw clamping oil
Cylinder, clamping oil cylinder are arranged between the driving device of side, chain are equipped in driving device, grip block is installed on chain, press from both sides
The external part for holding cylinder piston rod is equipped with guide plate, and guide plate can push grip block.
The beneficial effects of the utility model are:One kind of the utility model is used for injection head bidirectional loading, leads to
Crossing operation reversal valve causes hydraulic cylinder to stretch out or retract, and is injected or is promoted and provide stroke for injection head, carried further according to experiment
Lotus setting hydraulic cylinder corresponding cavity oil supply unit, load setting and detection unit a and the overflow valve pressure of load setting and detection unit b
Power drives hydraulic cylinder retraction or extending action when continuous pipe injection or enhancing action are simulated in injection head driving, realizes by hydraulic pressure
Cylinder applies substantially invariable load by trend injection head, realizes and applies two-way passive adjustable load, structure letter to tested device
It is single, it is easy to operate.
Description of the drawings
Fig. 1 is a kind of structure diagram for injection head bidirectional loading of the utility model;
Fig. 2 is a kind of injection head structure diagram for injection head bidirectional loading of the utility model.
In figure, 1. injection heads, 1-1. stents, 1-2. clamping devices, 1-3. driving devices, 1-4. clamping oil cylinders, 1-5. chains
Item, 1-6. grip blocks, 1-7. guide plates, 2. simulation connecting tubes, 3. hydraulic cylinders, 4. fuel tanks, 5. oil supply units, 5-1. overflow valve c,
5-2. check valves c, 5-3. pressure detecting instrument c, 5-4. shut-off valve c, 5-5. hydraulic pump, 5-6. reversal valves, 5-7. hydraulic control one-way valves,
5-8. filters, the setting of 6. load and detection unit a, 6-1. overflow valve a, 6-2. check valve a, 6-3. pressure detecting instrument a, 6-4.
Shut-off valve a, the setting of 7. load and detection unit b, 7-1. overflow valve b, 7-2. check valve b, 7-3. pressure detecting instrument b, 7-4. section
Only valve b, 8. first pipelines, 9. second pipelines.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The utility model provides one kind for injection head bidirectional loading, as shown in Figure 1, including injection head
1, injection head 1 is clamped with simulation connecting tube 2 from top to bottom, and the lower end of simulation connecting tube 2 is connected with hydraulic cylinder 3, and hydraulic cylinder 3 passes through
Pipeline is connect with fuel tank 4, and oil supply unit 5 is equipped in fuel tank 4;Pipeline includes the first pipeline 8 and the second pipeline 9 arranged side by side,
The lower end of first pipeline 8 is connect with oil supply unit 5, and the first pipeline 8 is equipped with load setting and detection unit a6;Second pipeline 9
Lower end is connect with oil supply unit 5, and the second pipeline 9 is equipped with load setting and detection unit b7.
Oil supply unit 5, which includes, is located at the hydraulic control one-way valve 5-7 close to the hydraulic cylinder 3 and hydraulic pump 5-5 close to fuel tank 4,
Hydraulic control one-way valve 5-7 is connected with one end of reversal valve 5-6, and the other end of reversal valve 5-6 is connected with overflow valve c5-1, hydraulic pump 5-
5 are equipped with filter 5-8 close to one end of the fuel tank 4, and the other end of hydraulic pump 5-5 is connected with check valve c5-2, check valve c5-
2 connect with reversal valve 5-6;Overflow valve c5-1 is connected with pressure detecting instrument c5-3, check valve c5-2 and pressure detecting instrument c5-3 company
It connects.
Shut-off valve c5-4, check valve c5-2 and pressure detecting instrument are equipped between overflow valve c5-1 and pressure detecting instrument c5-3
Shut-off valve c5-4 is equipped between c5-3.
Load is set and detection unit a6 includes overflow valve a6-1 and pressure detecting instrument a6-3, and overflow valve a6-1 is arranged on
First pipeline 8, one end of overflow valve a6-1 are connect with pressure detecting instrument a6-3, and the other end of overflow valve a6-1 is connected with check valve
A6-2, check valve a6-2 are connect with pressure detecting instrument a6-3;Shut-off valve is equipped between overflow valve a6-1 and pressure detecting instrument a6-3
A6-4 is equipped with the shut-off valve a6-4 between check valve a6-2 and pressure detecting instrument a6-3.
Load is set and detection unit b7 includes overflow valve b7-1 and pressure detecting instrument b7-3, and overflow valve b7-1 is arranged on
Second pipeline 9, one end of overflow valve b are connect with pressure detecting instrument b7-3, and the other end of overflow valve b7-1 is connected with check valve b7-
2, check valve b7-2 is connect with pressure detecting instrument b7-3;Shut-off valve b7- is equipped between overflow valve b7-1 and pressure detecting instrument b7-3
4, shut-off valve b7-4 is equipped between check valve b7-2 and pressure detecting instrument b7-3.
Injection head 1 includes stent 1-1, and the both sides of stent 1-1 are equipped with clamping device 1-2, are clamped between clamping device 1-2
There is simulation connecting tube 2.
Stent 1-1 both sides are symmetrically connected with driving device 1-3 by screw, and clamping device 1-2 sides are connected by screw
There are clamping oil cylinder 1-4, clamping oil cylinder 1-4 to be arranged between the driving device 1-3 of side, chain 1- is installed on driving device 1-3
Grip block 1-6 is installed on 5, chain 1-5, the external part of clamping oil cylinder 1-4 piston rods is equipped with guide plate 1-7, guide plate 1-7
Grip block grip block 1-6 can be pushed.At work, the piston rod of clamping cylinder 1-4, which is retracted, pushes guide plate 1-7 to injection head 1
Center draw close, guide plate 1-7 push with integrally mounted grip block 1-6 on chain 1-5, continuous pipe 2 will be simulated and clamped, this
When driving device 1-3 rotate forward or backwards can drive chain 1-5 and grip block 1-6 move above and below, realize to simulating continuous pipe
2 promotion or injection action.
Hydraulic cylinder 3 selects plunger case or piston cylinder or double rods or single rod.
Manometer detector c5-3, manometer detector a6-3 and manometer detector b7-3 select pressure gauge or pressure to become
Send device.
Reversal valve 5-6 selects hand-operated direction valve or pilot operated directional control valve or solenoid directional control valve.
The workflow of the utility model is:
Step 1:Hydraulic cylinder 3 and injection head 1 are installed on testing stand, hydraulic cylinder 3 and injection head 1 is made to be in relatively quiet
Only state.
Step 2:The clamping cylinder 1-4 piston rods of operation injection head 1 are in stretching state, make both sides guide plate 1-7 distances
Increase, gripping block 1-6 are in release conditions, simulate continuous pipe 2 and pass through gripping block 1-6 from top to bottom, simulate the lower end of continuous pipe 2
It is connected by flange with hydraulic cylinder 3.
Step 3:The overflow valve a6-1 on load setting and detection unit a6, load setting and detection unit are adjusted manually
Overflow valve b7-1 on b7 adjusts overflow valve a6-1 and overflow valve b7-1 to maximum throttle.
Step 4:Start the hydraulic pump 5-5 on oil supply unit 5 from 4 oil suction of fuel tank, hydraulic oil passes through and fuel tank 4 and hydraulic pump
After the filter 5-8 filterings of 5-5 connections, check valve 5-2 is flowed through after being pressurizeed by hydraulic pump 5-5, in the overflow valve of oil supply unit 5
The lower hydraulic oil of pressure regulation effect of c5-1 maintains stable pressure, and fuel tank 4 is flowed back to after passing through the reversal valve 5-6 in middle position.
Step 5:Reversal valve 5-6 is manually operated to right position or left position, make hydraulic oil with pressure by operation reversal valve 5-6 and
Hydraulic control one-way valve 5-7 enters the plug chamber or rod cavity of hydraulic cylinder 3, by 3 piston rod of hydraulic cylinder it is fully extended or retract, then manually behaviour
Make reversal valve 5-6 to middle position, stop to 3 fuel feeding of hydraulic cylinder.
Step 6:The clamping cylinder 1-4 of operation injection head 1 makes piston rod retract, and both sides guide plate 1-7 is drawn close to center to be pushed away
Dynamic gripping block 1-6 clamping die quasi-continuous pipe 2.
Step 7:According to 1 injection force of injection head or the structural parameters of lifting force and hydraulic cylinder 3 of test requirements document, calculate
Injection force test when load setting and detection unit a6 partial circuits pressure or calculate lifting force experiment when load setting and
The pressure in detection unit b7 circuits, accordingly manually adjust load setting and detection unit a6 overflow valve a6-1 or load setting and
The overflow valve b7-1 setting plug chambers of hydraulic cylinder 3 or rod cavity oil pressure relief of detection unit b7.
Step 8:The driving device 1-3 for starting injection head 1 drives chain 1-5 and grip block 1-6 to move downward or upward,
The continuous pipe 2 of simulation is made to move downward or upward, it is passive by 3 piston rod of hydraulic cylinder of flanged joint with the continuous pipe 2 of simulation at this time
Ground is as the continuous pipe 2 of simulation is retracted or is stretched out.
Step 9:Rod cavity is set by load when hydraulic cylinder 3 is passively retracted and detection unit b7 passes through list from 4 oil suction of fuel tank
To valve b7-2, the hydraulic oil that hydraulic cylinder 3 fills in chamber discharge throttles through the overflow valve a6-1 in load setting and detection unit a6 circuits
It sprains pressure, hydraulic cylinder 3 is made to apply substantially invariable thrust to continuous pipe 2 is simulated, realizes and applies upward thrust to injection head 1.It reads
The pressure value of load setting and the pressure detecting instrument a6-3 of detection unit a6 are taken, is calculated to what injection head 1 applied and actually pushes away
Power.
Step 10:Plug chamber by load setting and 4 oil suction of slave fuel tank of detection unit a6 and passes through when hydraulic cylinder 3 passively stretches out
Cross check valve a6-2, the hydraulic oil of 3 rod cavity of hydraulic cylinder discharge through load set and the circuit of detection unit b7 in overflow valve b7-
1 throttling is sprained pressure, and hydraulic cylinder 3 is made to apply substantially invariable pulling force to the continuous pipe 2 of simulation, realizes and applies downward drawing to injection head 1
Power.Load setting and the pressure value of detection unit b7 pressure detecting instruments b7-3 are read, the reality applied to injection head 1 is calculated
Pulling force.
Step 11:The clamping cylinder 1-4 piston rods for operating injection head 1 stretch out, and make both sides guide plate 1-7 distance increases,
Gripping block 1-6 no longer clamping die quasi-continuous pipes 2.
Step 12:Step 5~step 11 is repeated according to the lifting force of injection head 1 and injection force test requirements document, until
Experiment finishes, and closes hydraulic pump 5-5.
By the above-mentioned means, one kind of the utility model is used for injection head bidirectional loading, commutated by operating
Valve 5-6 causes hydraulic cylinder 3 to stretch out or retract, and is injected or is promoted and provide stroke for injection head 1, is set further according to test load
3 corresponding cavity oil supply unit 5 of hydraulic cylinder, load setting and detection unit a6 and the overflow valve pressure of load setting and detection unit b7
Power, simulates that continuous pipe note 2 enters or when enhancing action drives hydraulic cylinder 3 to retract or extending action in the driving of injection head 1, realizes by liquid
Cylinder pressure 3 applies substantially invariable load by trend injection head 1;It realizes and applies two-way passive adjustable load, knot to tested device
Structure is simple, easy to operate.