CN209495840U - Power drilling tool hydraulic part working performance test device - Google Patents
Power drilling tool hydraulic part working performance test device Download PDFInfo
- Publication number
- CN209495840U CN209495840U CN201920248456.8U CN201920248456U CN209495840U CN 209495840 U CN209495840 U CN 209495840U CN 201920248456 U CN201920248456 U CN 201920248456U CN 209495840 U CN209495840 U CN 209495840U
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- pedestal
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- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 title claims abstract description 66
- 238000011056 performance test Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 230000006641 stabilisation Effects 0.000 claims abstract description 6
- 238000011105 stabilization Methods 0.000 claims abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 39
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000010992 reflux Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 230000036316 preload Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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Abstract
The utility model discloses a kind of power drilling tool hydraulic part working performance test devices, including water tank, load simulating device, tap, flow stabilizing valve and pressure regulator valve, tap includes shell, bearing is loaded respectively at the both ends of shell, it is connect respectively with the exit end of power drilling tool and load simulating device by bearing, water hole is outputed on shell wall between bearings at both ends, apopore is connected to by pipeline with water tank；Flow stabilizing valve is connected to the entrance of power drilling tool and water tank respectively；Pressure regulator valve respectively with outside water discharge of water faucet hole pipeline and water tank be connected to.The utility model power drilling tool hydraulic part working performance test device can simulate the flow resistance of down-hole equipment outlet end.When the drilling fluid of certain flow pressure passes through power drilling tool, constant-current stabilizer stablizes power drilling tool inlet flow rate, and exports the outlet pressure that pressure adjusting structure has adjusted system, there is pressure stabilization function.Test device greatly reduces the operating condition of down-hole equipment, improves the accuracy of power drilling tool output performance DATA REASONING.
Description
Technical field
The utility model relates to a kind of simulating test devices more particularly to a kind of power drilling tool hydraulic part working performance to survey
Trial assembly is set.
Background technique
In the prior art, power drilling tool is one of the critical component of geology of deep part probing, conveys drilling fluid by slush pump
Power drilling tool rotation is driven, drilling movement is completed.When simulating power drilling tool load test in the lab, the entrance of power drilling tool
End needs stable mud flow rate, it is therefore desirable to design a kind of entrance constant-current stabilizer.The experimental system of closed driving exports
Allow for pressure stabilizing.The drilling fluid of certain flow pressure passes through power drilling tool testing stand outlet end, can generate certain flow resistance.Cause
This needs to design a kind of outlet pressure adjusting structure, to simulate the flow resistance of fluid outflow.
Utility model content
For above-mentioned shortcoming and defect in the prior art, the purpose of this utility model is to provide a kind of power drilling tool water
Power component working performance test device.
The purpose of this utility model is achieved through the following technical solutions:
A kind of power drilling tool hydraulic part working performance test device, including it is water tank, load simulating device, tap, steady
Flowing valve and pressure regulator valve, the tap includes shell, loads bearing respectively at the both ends of shell, by bearing respectively with power drill
The exit end and load simulating device of tool connect, and output water hole, the apopore on the shell wall between bearings at both ends
It is connected to by pipeline with water tank；Flow stabilizing valve is connected to the entrance of power drilling tool and water tank respectively；Pressure regulator valve goes out with tap respectively
Pipeline outside water hole is connected to water tank.
Preferably, the flow stabilizing valve includes the first valve seat and spool, and the spool is mounted in the valve chamber of the first valve seat, institute
It states and is provided with valve chamber entrance on the first valve seat, valve chamber exports and overflow port, the valve chamber entrance and overflow port are connected to water tank, institute
Valve chamber outlet is stated to be connected to power drilling tool entrance；The spool includes coaxially being sequentially filled to the reducing valve body of valve chamber, decompression bullet
Spring and pedestal, pedestal and valve chamber open are fixedly mounted, and reducing valve body is slidably matched with valve chamber inner wall, valve chamber export face pedestal with
Fit-up gap setting between reducing valve body；Neck, the neck of valve chamber entrance face reducing valve body are processed on reducing valve body
Setting；The first segment discharge orifice for extending radially through reducing valve body is provided in neck, the aperture of first segment discharge orifice is less than valve chamber entrance, valve
The bore of chamber outlet and overflow port；By relief spring deformation occurs under flow action adjust overflow port and reducing valve body neck
The aperture between aperture and reducing valve body and pedestal between portion.
Preferably, the valve chamber entrance, overflow port and valve chamber outlet are successively set along the glide direction of reducing valve body towards pedestal
It sets, when reducing valve body is towards base motions, the aperture between overflow port and reducing valve body neck has reduced trend or gradually
Reduce；The aperture between reducing valve body and pedestal is gradually reduced simultaneously.
Preferably, the pedestal and reducing valve body all have for being oriented to and the tube-in-tube structure of righting relief spring.
Preferably, the pressure regulator valve includes the second valve seat, main valve plug and safe spool, and the upper of the second valve seat is opened respectively
There are water inlet and refluxing opening, the water inlet is connected to the pipeline outside water discharge of water faucet hole, and the refluxing opening is connected to water tank；?
The valve chamber for loading main valve plug and safe spool is machined on second valve seat respectively, is provided on the second valve seat and filling main valve plug
Valve chamber connection pressure modulating opening, the pressure modulating opening is connected to the water tank；Second valve seat corresponds to the valve chamber of filling main valve plug and returns
Head piece is machined with the channel of connection；The main valve plug includes the pedestal, spring and main valve body being sequentially coaxially arranged, and the pedestal can
Adjusting is mounted in the second valve seat, and valve chamber and water inlet are logical where main valve body end is against main valve plug by the elastic force effect of spring
The opening in road, main valve body end are provided with the second throttle orifice for leading to main valve plug place valve chamber；The safe spool includes successively
Pedestal, safety valve spring and the safety valve body of coaxial arrangement, the whorl of base are mounted on the second valve seat, the safety valve body
The lower access portal being connected between closed reflux mouth and water inlet is acted on by the elastic force of safety valve spring.
It preferably, further include auxiliary spool and regulating valve, the auxiliary spool is fixedly mounted on main valve plug pedestal far from main
One end of valve body；The regulating valve includes handle and rotation axis and trundle, and the handle is radial solid with rotation axis along rotation axis
Fixed connection, the trundle are parallel to handle and are fixedly connected with the rotating shaft；Pin hole is provided on auxiliary spool, pin hole is axial and main
The direction of motion of valve body is vertical, and the trundle is inserted into the pin hole；By handle along the reciprocal of the main valve body direction of motion
The pretightning force of oscillation adjustment main spool spring.
It preferably, further include adjusting handle, the adjusting handle is fixedly connected with the pedestal of safe spool, is adjusted by rotation
Section handwheel adjusts the relative position between the pedestal and the second valve seat, thus the pretightning force of regulation safety valve core spring.
Preferably, the load simulating device includes sequentially connected torque sensor, diaphragm coupling and electric power measurement of power
Machine is connected between the torque sensor and tap by shaft.
Preferably, it is provided with centrifugal pump between the water tank and the valve chamber entrance of the first valve seat, in the valve chamber of the first valve seat
Shut-off valve, flow sensor and pressure gauge are provided on pipeline between outlet and power drilling tool entrance.
Preferably, pressure gauge is provided on the road water discharge of water faucet Kong Waiguan.
Compared with prior art, the utility model embodiment has at least the following advantages:
The power drilling tool hydraulic part working performance test device can simulate the flow resistance of down-hole equipment outlet end.One constant current
When the drilling fluid of amount pressure passes through power drilling tool, constant-current stabilizer stabilizes the inlet flow rate of power drilling tool, and exports pressure adjusting structure
The outlet pressure for having adjusted system, there is pressure stabilization function, to improve the accuracy of power drilling tool output performance DATA REASONING.It is whole
A closed driving pilot system can be very good the fact of simulation down-hole equipment work.
Detailed description of the invention
Fig. 1 is the general assembly drawing of the utility model power drilling tool hydraulic part working performance test device；
Fig. 2 is the structural schematic diagram of the flow stabilizing valve of the utility model power drilling tool hydraulic part working performance test device；
Fig. 3 is the structural schematic diagram of the pressure regulator valve of the utility model power drilling tool hydraulic part working performance test device.
Specific embodiment
Below with reference to embodiment and its Fig. 1-3, the utility model is described in further detail, and following embodiment is descriptive
, it is not restrictive, protection scope of this utility model cannot be limited by this.
A kind of power drilling tool hydraulic part working performance test device, including water tank 1, load simulating device, tap 8,
Flow stabilizing valve 3 and pressure regulator valve 9, the tap 8 include shell, load bearing respectively at the both ends of shell, by bearing respectively with
The exit end and load simulating device of power drilling tool 7 connect, and output water hole on the shell wall between bearings at both ends, described
Apopore is connected to by pipeline with water tank 1；Flow stabilizing valve 3 is connected to the entrance of power drilling tool 7 and water tank 1 respectively；Pressure regulator valve 9 is distinguished
With outside 8 apopore of tap pipeline and water tank 1 be connected to.
The flow stabilizing valve 3 includes the first valve seat and spool, and the spool is mounted in the valve chamber of the first valve seat, and described first
Valve chamber entrance 26, valve chamber outlet 27 and overflow port 30 are provided on valve seat, the valve chamber entrance 26 and overflow port 30 connect with water tank 1
Logical, the valve chamber outlet 27 is connected to 7 entrance of power drilling tool；The spool includes coaxially being sequentially filled to the reducing valve body of valve chamber
28, relief spring 31 and pedestal, pedestal and valve chamber open are fixedly mounted, and reducing valve body 28 is slidably matched with valve chamber inner wall, valve chamber
Export the fit-up gap setting between 27 face pedestals and reducing valve body 28；Neck is processed on reducing valve body 28, valve chamber enters
The neck setting of 26 face reducing valve bodies 28 of mouth；The first segment discharge orifice 29 for extending radially through reducing valve body 28 is provided in neck, the
The aperture of one throttle orifice 29 is less than the bore of valve chamber entrance 26, valve chamber outlet 27 and overflow port 30；By relief spring 31 in water
Stream effect is lower, and deformation occurs adjusts aperture between overflow port 30 and the neck of reducing valve body 28 and reducing valve body 28 and pedestal
Between aperture.
The valve chamber entrance 26, overflow port 30 and valve chamber outlet 27 are successively set along the glide direction of reducing valve body 28 towards pedestal
It sets, when reducing valve body 28 is towards base motions, the aperture between 28 neck of overflow port 30 and reducing valve body has reduced trend
Or it is gradually reduced；The aperture between reducing valve body 28 and pedestal is gradually reduced simultaneously.
The pedestal and reducing valve body 28 all have for being oriented to and the tube-in-tube structure of righting relief spring 31.
The pressure regulator valve 9 includes the second valve seat, main valve plug and safe spool, is had on second valve seat into water
Mouth 14 and refluxing opening 24, the water inlet 14 are connected to the pipeline outside 8 apopore of tap, and the refluxing opening 24 connects with water tank 1
It is logical；It is machined with the valve chamber for loading main valve plug and safe spool respectively on the second valve seat, is provided with and loads on the second valve seat
The pressure modulating opening 17 of the valve chamber connection of main valve plug, the pressure modulating opening 17 are connected to the water tank 1；The corresponding filling main valve plug of second valve seat
Valve chamber be machined with the channel being connected to refluxing opening 24；The main valve plug includes the pedestal being sequentially coaxially arranged, spring 18 and master
Valve body 16, the pedestal is adjustable to be mounted in the second valve seat, and 16 end of main valve body is against master by the elastic force effect of spring 18
The opening of valve chamber and 14 channel of water inlet where spool, 16 end of main valve body are provided with the second section for leading to main valve plug place valve chamber
Discharge orifice 15；The safe spool includes the pedestal being sequentially coaxially arranged, safety valve spring 23 and safety valve body 25, the pedestal spiral shell
Line is mounted on the second valve seat, and the safety valve body 25 is acted on lower closed reflux mouth 24 and entered by the elastic force of safety valve spring 23
The access portal being connected between the mouth of a river 14.
It further include auxiliary spool 19 and regulating valve, the auxiliary spool 19 is fixedly mounted on main valve plug pedestal far from main valve body
16 one end；The regulating valve includes handle 21 and rotation axis 22 and trundle 20, the handle 21 along rotation axis 22 it is radial with
Rotation axis 22 is fixedly connected, and the trundle 20 is parallel to handle 21 and is fixedly connected with rotation axis 22；It is opened on auxiliary spool 19
There is pin hole, pin hole is axial vertical with the direction of motion of main valve body 16, and the trundle 20 is inserted into the pin hole；Pass through handle
21 adjust the pretightning force of main valve plug spring 18 along the reciprocally swinging of 16 direction of motion of main valve body.
It further include adjusting handle 32, the adjusting handle 32 is fixedly connected with the pedestal of safe spool, is adjusted by rotation
Handwheel 32 adjusts the relative position between the pedestal and the second valve seat, thus the pretightning force of regulation safety valve core spring.
The load simulating device includes sequentially connected torque sensor 10, diaphragm coupling 11 and electric dynamometer
13, it is connected between the torque sensor 10 and tap 8 by shaft.
It is provided with centrifugal pump 2 between the water tank 1 and the valve chamber entrance 26 of the first valve seat, is exported in the valve chamber of the first valve seat
Shut-off valve 4, flow sensor 5 and pressure gauge 6 are provided on pipeline between 27 and 7 entrance of power drilling tool.
Pressure gauge 13 is provided on 8 road apopore Wai Guan of tap.
The course of work of this power drilling tool hydraulic part working performance test device:
Centrifugal pump 2 draws water from water tank 1, enters flow stabilizing valve 3 through pipeline, part water is returned by the overflow port 30 of flow stabilizing valve 3
To water tank 1, and the water of regime flow reaches 7 inlet of power drilling tool through piping, between 7 entrance of flow stabilizing valve 3 and power drilling tool
Flow sensor 5 and pressure gauge 6 on pipeline measure the flow and inlet pressure of drilling tool arrival end respectively.Power drilling tool 7 exports
Terminate 8 one end of tap, then through apopore outside pipeline reach water tank 1.Pressure regulator valve 9 is connected in parallel to the pipeline outside apopore, outlet
Water tank 1 is taken back by refluxing opening 24 and pressure modulating opening 17, to adjust the outlet pressure of power drilling tool 7.On apopore Outer Tube
Pressure gauge 13 is used to measure drilling tool outlet pressure.The other end of tap 8 successively connect torque sensor 10, diaphragm coupling 11 with
And electric dynamometer 13, in the case where constantly inputting liquid medium to power drilling tool 7, by electric dynamometer 13 to power
Drilling tool 7 applies different torque loads, makes the steady operation under different braking torques of power drilling tool 7, detects power drilling tool 7
The Specifeca tion speeifications such as output torque, revolving speed, flow and pressure under different operating conditions, by data processing and corresponding number
Student movement obtains the dynamic performance parameters and characteristic curve of power drilling tool 7 after calculating, to grasp the working characteristics of power drilling tool 7.
Import flow stabilizing valve 3 adjusts drilling tool inlet flow rate, so that stability of flow:
Water is divided into two-way after entering flow stabilizing valve 3 from the valve chamber entrance 26 of flow stabilizing valve 3, passes through 30 reflow tank of overflow port all the way
1, which does not need current stabilization.For another way by throttle orifice from 27 outflow of valve chamber outlet, this requires current stabilization all the way.When valve chamber exports 27
When pressure reduces, the pressure difference moment between valve chamber entrance 26 and valve chamber outlet 27 increases, at this time 28 disequilibrium of reducing valve body,
It is moved to left under the effect of 26 lateral pressure of valve chamber entrance, aperture increases between axle journal and overflow port 30, and restriction effect weakens, then valve chamber enters
Mouth 26 pressure decline, so that the constant pressure differential between valve chamber entrance 26 and valve chamber outlet 27.Vice versa.
It exports pressure regulator valve 9 and adjusts drilling tool outlet pressure, there is pressure stabilization function:
Rotate coupled rotation axis 22 by the rotation of handle 21, the spinning movement by with rotation axis
22 and the trundle 20 that is connected of auxiliary spool 19 carry out movement transmitting, to drive auxiliary spool 19 to carry out the shifting of horizontal direction
It is dynamic, thus compressed spring, and then adjust the pressure at 9 water inlet of pressure regulator valve, 14 end.
Water passes through 9 entrance of pressure regulator valve, and a part enters main valve plug lower end through throttle orifice, and throttle orifice has drainage, reduces
The vibration and noise, another part generated by water impact enters safe spool lower end through runner.When intake pressure arrives greatly
The elastic force of main valve plug can be overcome, water flow opens main valve plug, and carries out aerial drainage by the pressure modulating opening 17 of top.When there is pressure wave
Dynamic, when inlet pressure is enough to overcome safety valve spring 23, water flow will open safety valve body 25 and pass through 24 aerial drainage of refluxing opening.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (10)
1. a kind of power drilling tool hydraulic part working performance test device, which is characterized in that including water tank, load simulating device,
Tap, flow stabilizing valve and pressure regulator valve, the tap include shell, load bearing respectively at the both ends of shell, pass through bearing point
It is not connect with the exit end of power drilling tool and load simulating device, outputs water hole on the shell wall between bearings at both ends,
The apopore is connected to by pipeline with water tank；Flow stabilizing valve is connected to the entrance of power drilling tool and water tank respectively；Pressure regulator valve difference
With outside water discharge of water faucet hole pipeline and water tank be connected to.
2. power drilling tool hydraulic part working performance test device according to claim 1, which is characterized in that the current stabilization
Valve includes the first valve seat and spool, and the spool is mounted in the valve chamber of the first valve seat, is provided with valve chamber on first valve seat and enters
Mouth, valve chamber outlet and overflow port, the valve chamber entrance and overflow port are connected to water tank, and the valve chamber outlet enters with power drilling tool
Mouth connection；The spool includes coaxially being sequentially filled to the reducing valve body, relief spring and pedestal of valve chamber, pedestal and valve chamber open
It is fixedly mounted, reducing valve body is slidably matched with valve chamber inner wall, and valve chamber exports the fit-up gap between face pedestal and reducing valve body
Setting；Neck, the neck setting of valve chamber entrance face reducing valve body are processed on reducing valve body；It is provided in neck and radially passes through
The first segment discharge orifice of reducing valve body is worn, the aperture of first segment discharge orifice is less than the bore of valve chamber entrance, valve chamber outlet and overflow port；It is logical
Relief spring is crossed in the aperture and pressure reducing valve that deformation occurs under flow action between adjusting overflow port and the neck of reducing valve body
Aperture between body and pedestal.
3. power drilling tool hydraulic part working performance test device according to claim 2, which is characterized in that the valve chamber
Entrance, overflow port and valve chamber outlet are set gradually along the glide direction of reducing valve body towards pedestal, and reducing valve body is towards base motions
When, the aperture between overflow port and reducing valve body neck has reduced trend or is gradually reduced；Reducing valve body and pedestal simultaneously
Between aperture be gradually reduced.
4. power drilling tool hydraulic part working performance test device according to claim 2 or 3, which is characterized in that described
Pedestal and reducing valve body all have for being oriented to and the tube-in-tube structure of righting relief spring.
5. power drilling tool hydraulic part working performance test device according to claim 1, which is characterized in that the pressure regulation
Valve includes the second valve seat, main valve plug and safe spool, has water inlet and refluxing opening on second valve seat, it is described enter
The mouth of a river is connected to the pipeline outside water discharge of water faucet hole, and the refluxing opening is connected to water tank；It is processed respectively on the second valve seat useful
The pressure modulating opening being connected to the valve chamber for loading main valve plug, institute are provided in the valve chamber of filling main valve plug and safe spool, on the second valve seat
Pressure modulating opening is stated to be connected to the water tank；The valve chamber of the corresponding filling main valve plug of second valve seat is machined with the channel being connected to refluxing opening；
The main valve plug includes the pedestal, spring and main valve body being sequentially coaxially arranged, and the pedestal is adjustable to be mounted in the second valve seat,
The opening of valve chamber and water inlet channel, main valve body end where main valve body end is against main valve plug by the elastic force effect of spring
It is provided with the second throttle orifice of valve chamber where leading to main valve plug；The safe spool includes the pedestal being sequentially coaxially arranged, safety valve
Spring and safety valve body, the whorl of base are mounted on the second valve seat, the elastic force that the safety valve body passes through safety valve spring
Act on the lower access portal being connected between closed reflux mouth and water inlet.
6. power drilling tool hydraulic part working performance test device according to claim 5, which is characterized in that further include auxiliary
Spool and regulating valve are helped, the auxiliary spool is fixedly mounted on the one end of main valve plug pedestal far from main valve body；The regulating valve packet
Handle and rotation axis and trundle are included, the handle is radially fixedly connected with the rotating shaft along rotation axis, and the trundle is parallel to
Handle is fixedly connected with the rotating shaft；Pin hole is provided on auxiliary spool, pin hole is axial vertical with the direction of motion of main valve body, described
Trundle is inserted into the pin hole；The preload of main spool spring is adjusted along the reciprocally swinging of the main valve body direction of motion by handle
Power.
7. power drilling tool hydraulic part working performance test device according to claim 5, which is characterized in that further include adjusting
Handwheel is saved, the adjusting handle is fixedly connected with the pedestal of safe spool, passes through the rotation adjusting handle adjusting pedestal and the
Relative position between two valve seats, thus the pretightning force of regulation safety valve core spring.
8. power drilling tool hydraulic part working performance test device according to claim 1, which is characterized in that the load
Simulator includes sequentially connected torque sensor, diaphragm coupling and electric dynamometer, the torque sensor and the fire hose
It is connected between head by shaft.
9. power drilling tool hydraulic part working performance test device according to claim 2, which is characterized in that the water tank
And first valve seat valve chamber entrance between be provided with centrifugal pump, the first valve seat valve chamber outlet power drilling tool entrance between
Shut-off valve, flow sensor and pressure gauge are provided on pipeline.
10. power drilling tool hydraulic part working performance test device according to claim 5, which is characterized in that in the fire hose
Head apopore Wai Guan is provided with pressure gauge on road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248456.8U CN209495840U (en) | 2019-02-27 | 2019-02-27 | Power drilling tool hydraulic part working performance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248456.8U CN209495840U (en) | 2019-02-27 | 2019-02-27 | Power drilling tool hydraulic part working performance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209495840U true CN209495840U (en) | 2019-10-15 |
Family
ID=68156847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920248456.8U Expired - Fee Related CN209495840U (en) | 2019-02-27 | 2019-02-27 | Power drilling tool hydraulic part working performance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209495840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946052A (en) * | 2019-02-27 | 2019-06-28 | 中国地质大学（北京） | Power drilling tool hydraulic part working performance test device |
-
2019
- 2019-02-27 CN CN201920248456.8U patent/CN209495840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946052A (en) * | 2019-02-27 | 2019-06-28 | 中国地质大学（北京） | Power drilling tool hydraulic part working performance test device |
| CN109946052B (en) * | 2019-02-27 | 2023-12-15 | 中国地质大学（北京） | Device for testing working performance of hydraulic component of power drilling tool |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |