CN217687747U - Plunger matching parts step-down detection device - Google Patents
Plunger matching parts step-down detection device Download PDFInfo
- Publication number
- CN217687747U CN217687747U CN202221927477.0U CN202221927477U CN217687747U CN 217687747 U CN217687747 U CN 217687747U CN 202221927477 U CN202221927477 U CN 202221927477U CN 217687747 U CN217687747 U CN 217687747U
- Authority
- CN
- China
- Prior art keywords
- plunger
- positioning
- bottom plate
- hole
- positioning seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a plunger matching parts step-down detection device, including positioning fixture, first pressure head and second pressure head, positioning fixture includes the support, the support includes the bottom plate, and connect the plunger bushing shoulder blade locating plate of seting up the constant head tank on the support, the bottom plate is located the constant head tank downside and connects the lower prop, connecting seat link block location axle is passed through to plunger bushing shoulder blade locating plate one side, in the draw-in groove of timing slider can be penetrated to slider location axle, rotate on the bottom plate and connect the rotation positioning seat, rotate the positioning seat and connect plunger core position locating piece, first pressure head is worn at the threaded cavity of plunger bushing, second pressure head can press at first pressure head, high pressure oil pipe is connected to second pressure head, the connect-through hole of intercommunication second pressure head high pressure oil pipe and plunger bushing is seted up to first pressure head, plunger matching parts step-down detection device adopts the step-down pump mode to seal up and detects to can improve the stability and the accuracy that sealing performance detected, improve the quality of product.
Description
Technical Field
The utility model relates to a detection device especially relates to a plunger matching parts step-down detection device.
Background
The method adopted by the traditional method for testing the sealing performance of the TICS series plunger matching parts is to adopt a simple clearance measuring instrument, the clearance value of the matching parts is automatically calculated by the detecting instrument through detecting the working outer diameter of the plunger core and the diameter of the middle hole of the timing slide block, so that the sealing performance of the matching plunger matching parts is judged, the diameter of the middle hole of the plunger sleeve does not participate in the measurement, the judgment result is unreliable, the sealing performance quality of the matching parts is not guaranteed, a client frequently reflects, and the problems of oil leakage, blocking of the plunger matching parts and the like exist after the plunger matching parts are assembled in a pump, so a new testing device is required to be designed for carrying out the sealing performance of the TICS series plunger matching parts; the conventional plunger and barrel assembly only comprises a plunger sleeve and a plunger core, the tightness of the conventional plunger and barrel assembly is tested, a pressure reduction and correction pump mode is adopted for sealing test, namely, the plunger and barrel assembly is positioned by adopting a clamp, high-pressure oil is injected into a gap between the plunger sleeve and the plunger core through a high-pressure pump, after the oil pressure is increased to a set value, the high-pressure oil is leaked from the lower end of the gap between the plunger sleeve and the plunger core, the pressure is reduced, the oil pressure is reduced to a set lower limit value, and the sealing performance of the conventional plunger and barrel assembly is detected through the time of oil pressure reduction, so that the detection mode has good stability and can ensure the product quality of the conventional plunger and barrel assembly; when the sealing performance test of the TICS series plunger and barrel assembly is carried out, the test mode can be used for reference so as to improve the stability of the sealing test, but due to the special structure of the TICS series plunger and barrel assembly, at present, no proper clamp is used for positioning the TICS series plunger and barrel assembly so as to realize the pressure reduction pump calibration mode sealing detection of the TICS series plunger and barrel assembly.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a plunger and barrel assembly step-down detecting device to solve one or more problems in the prior art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a plunger matching parts step-down detection device, includes positioning fixture, first pressure head and second pressure head, positioning fixture includes the support, the support includes the bottom plate, just connect the plunger bushing scapula locating plate of seting up the constant head tank on the support, the bottom plate is located the constant head tank downside and connects the lower prop, plunger bushing scapula locating plate one side is through connecting seat link block location axle, in the draw-in groove of timing slider can be penetrated to slider location axle, rotate on the bottom plate and connect the rotation positioning seat, the flat position locating piece of plunger core is connected to the rotation positioning seat, first pressure head wears in the threaded cavity of plunger bushing, the second pressure head can press at first pressure head, high pressure oil pipe is connected to the second pressure head, the connect through-hole of intercommunication second pressure head high pressure oil pipe and plunger bushing is seted up to first pressure head.
As a further improvement of the above technical solution:
the plunger bushing scapular surface positioning plate is detachably connected with the bracket through screws.
Set up the installation and lead to the groove on the bottom plate, the bottom plate is located the logical groove downside of installation and connects bush positioning cover, bush positioning cover installs first bush on the inner wall that the groove was led to in the installation, the swivel mount that rotates the positioning seat through the bottom is worn rotatable be connected to on the bottom plate in the first bush, just the spread groove is seted up to the rotation positioning seat, just the connection connecting hole is seted up to the position that the bottom plate is located the spread groove, the rotation positioning seat passes spread groove cooperation connecting hole and bottom plate fixed connection through the bolt.
The lower end of the lower supporting column is provided with external threads, the rotating positioning seat is matched with the lower supporting column, a threaded hole is formed in the rotating positioning seat, the lower supporting column is in threaded connection with the threaded hole, and the external threads of the lower supporting column are connected with a locking nut.
Rotation connecting holes are formed in the circumferential direction of the outer side of the lower supporting column and the circumferential direction of the locking nut, and the rotation connecting holes can be clamped with connecting rods used for rotating the lower supporting column and the locking nut.
The periphery of the rotation positioning seat is marked with an angle mark, and the front side of the bottom plate is marked with a zero mark in a matched mode.
The connecting seat is provided with a shaft hole for installing the sliding block positioning shaft, a second shaft sleeve is arranged between the shaft hole and the sliding block positioning shaft, and one side of the shaft hole is connected with a fastening screw for fastening the sliding block positioning shaft.
The connecting seat is provided with a vertical long groove, and the connecting seat penetrates through the vertical long groove through a bolt to be connected with the plunger sleeve scapular surface positioning plate.
The rotary positioning seat is provided with a vertical long round hole connected with the plunger core flat positioning block, and the plunger core flat positioning block penetrates through the vertical long round hole through a bolt to be connected with the rotary positioning seat.
And the lower end of the first movable pressure head is connected with a sealing ring for sealing.
Compared with the prior art, the utility model discloses a beneficial technological effect as follows:
1) The plunger sleeve is positioned by the plunger sleeve shoulder blade positioning plate by adopting a positioning fixture, the plunger core is positioned by the lower support column, the timing slide block is positioned by the slide block positioning shaft, the flat position of the plunger core is positioned by the plunger core flat position positioning block connected with the rotating positioning seat, so that the plunger and barrel assembly with the timing slide block can be positioned, and the plunger and barrel assembly with the timing slide block can be subjected to pressure reduction pump calibration sealing detection by matching with the first movable pressure head and the second movable pressure head, so that the stability and the accuracy of sealing performance detection are improved, the quality of a product is improved, and the quality problems of leakage, clamping stagnation and the like do not occur when the product is used;
2) The plunger sleeve scapular surface positioning plate is detachably connected with the bracket, so that the plunger sleeve scapular surface positioning plate connected with different plungers is convenient to replace and position plunger sleeves with different specifications;
3) A first bushing is arranged between the rotary positioning seat and the installation through groove of the base, so that the rotary positioning seat and the base are prevented from being directly contacted, rotated and abraded, the service life of the positioning clamp is prolonged, the position of the rotary positioning seat can be fixed through a bolt after the rotary adjustment is finished, and the position of a plunger core flat positioning block is prevented from moving in the detection process;
4) The lower support column is in threaded connection with the rotary positioning seat, the height of the lower support column can be adjusted by rotating the lower support column, the lower support column is guaranteed to stably support the plunger piston core, and the height of the lower support column can be fixed through a locking nut;
5) The lower supporting columns and the locking nuts are circumferentially provided with rotating connecting holes, the rotating connecting holes can be connected with the connecting rods, and the lower supporting columns and the locking nuts can be conveniently rotated and adjusted through the connecting rods;
6) The periphery of the rotating positioning seat is marked with an angle mark, and the front side of the bottom plate is marked with a zero mark, so that the angle between the timing slide block and the flat position of the plunger core can be displayed;
7) The connecting seat is provided with a slide block positioning shaft through the shaft hole, a second shaft sleeve is arranged between the slide block positioning shaft and the shaft hole, so that the abrasion between the shaft hole and the slide block positioning shaft is reduced, and the slide block positioning shaft is firmly connected through a fastening screw, so that the slide block positioning shaft is firmly connected;
8) The positions of the connecting seat and the plunger core flat position positioning block can be finely adjusted up and down, so that the accurate positioning of the sliding block positioning shaft and the timing sliding block is ensured, and the plunger core flat position positioning block accurately positions the plunger core flat position;
9) The sealing washer is connected to first pressure head lower extreme, guarantees the leakproofness of first pressure head and plunger bushing.
Drawings
Fig. 1 is a side sectional view showing the plunger and barrel assembly decompression detecting apparatus of the present embodiment.
Fig. 2 is a front view showing the plunger and barrel assembly decompression detecting apparatus of the present embodiment.
Fig. 3 shows a top view of the plunger and barrel assembly decompression detection device of the present embodiment.
In the drawings, the reference numbers:
1. a first ram; 101. a connecting through hole; 102. a seal ring; 2. a support; 21. a base plate; 211. installing a through groove; 212. connecting holes; 213. zero marking; 22. a bushing-locating cap; 23. a first bushing; 3. the plunger sleeve scapular surface positioning plate; 31. positioning a groove; 4. a lower support column; 41. locking the nut; 42. rotating the connecting hole; 5. a connecting seat; 51. a shaft hole; 52. a second shaft sleeve; 53. a fastening screw; 54. a vertical elongated slot; 6. a slider positioning shaft; 7. rotating the positioning seat; 71. rotating; 72. connecting grooves; 73. a threaded hole; 74. marking an angle; 75. a vertical slotted hole; 8. plunger core flat position locating piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and clearly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential significance in technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.
As shown in fig. 1 to fig. 3, the plunger and barrel assembly step-down detecting device of the present embodiment includes a positioning fixture, a first movable pressing head 1 and a second movable pressing head, the positioning fixture includes a support 2, the support 2 includes a bottom plate 21, the bracket 2 is detachably connected with the plunger bushing scapular surface positioning plate 3 provided with the positioning groove 31 through a screw, the bottom plate 21 is provided with a mounting through groove 211 at the lower side of the positioning groove 31, the bottom plate 21 is connected with a bushing positioning cover 22 at the lower side of the mounting through groove 211, the first bushing 23 is mounted on the inner wall of the mounting through groove 211 by the bushing positioning cover 22, the rotary positioning seat 7 penetrates into the first bushing 23 through a rotary seat 71 at the bottom and is rotatably connected to the bottom plate 21, the rotary positioning seat 7 is provided with a connecting groove 72, the bottom plate 21 is provided with a connecting hole 212 at the position of the connecting groove 72, the rotary positioning seat 7 is fixedly connected with the bottom plate 21 by a bolt penetrating through the connecting groove 72 and matching with the connecting hole 212, the rotary positioning seat 7 is connected with the plunger core flat positioning block 8, the rotary positioning seat 7 is provided with a threaded hole 73 at the lower side of the positioning groove 31, the threaded hole 73 is connected with the lower support column 4 with external threads in a threaded manner, and the external thread of the lower support column 4 is connected with a locking nut 41, one side of the plunger sleeve scapular surface positioning plate 3 is connected with a connecting seat 5, the connecting seat 5 is provided with a shaft hole 51 for installing a slide block positioning shaft 6, and set up second axle sleeve 52 between shaft hole 51 and the slider location axle 6, and the fastening screw 53 of fastening slider location axle 6 is connected to shaft hole 51 one side, and slider location axle 6 can wear into timing slide's draw-in groove, and first piston head 1 wears in the screw thread intracavity of plunger bushing, and second piston head can press at first piston head 1, and high pressure fuel pipe is connected to the second piston head, and first piston head 1 sets up the connect through hole 101 of intercommunication second piston head high pressure fuel pipe and plunger bushing.
The periphery of the rotary positioning seat 7 is marked with an angle mark 74, and the front side of the matched bottom plate 21 is marked with a zero mark 213, so that whether the angle between the timing slide block and the flat position of the plunger core is accurate or not can be detected.
A vertical long groove 54 is formed in the connecting seat 5, and the connecting seat 5 penetrates through the vertical long groove 54 through a bolt to be connected with the plunger sleeve scapular surface positioning plate 3; the rotating positioning seat 7 is provided with a vertical long circular hole 75 connected with the plunger core flat positioning block 8, the plunger core flat positioning block 8 penetrates through the vertical long circular hole 75 through a bolt to be connected with the rotating positioning seat 7, the slider positioning shaft 6 and the plunger core flat positioning block 8 can be finely adjusted up and down, and the slider positioning shaft 6 and the plunger core flat positioning block 8 are ensured to accurately position the timing slider and the plunger core flat.
The sealing ring 102 that is used for sealing is connected to first piston head 1 lower extreme, guarantees the sealing performance between first piston head 1 and the plunger bushing, prevents that the fluid that detects from the clearance leakage between first piston head 1 and the plunger bushing.
When the plunger and barrel part voltage reduction detection device is used, the first movable pressure head 1 is firstly placed into a threaded cavity of a plunger sleeve, the shoulder blade surface of the plunger sleeve of the plunger and barrel part is supported on a plunger sleeve shoulder blade surface positioning plate 3, the lower end of a plunger core of the plunger and barrel part penetrates through the positioning groove 31 and extends to the upper side of the lower support column 4, then the connecting rod penetrates through the rotary connecting hole 42, the lower support column 4 can be driven to rotate through the connecting rod, the upper and lower adjustment of the lower support column 4 can be driven by matching with the threaded hole 73, after the adjustment is completed, the connecting rod penetrates through the rotary connecting hole 42 of the locking nut 41 to rotate the locking nut 41, the position of the lower support column 4 is fixed, and the lower end of the plunger core of the plunger and barrel part is supported by the lower support column 4; the draw-in groove of timing slider rotates to connecting seat 5 one side, the position of upper and lower regulation connecting seat 5, make the shaft hole 51 of connecting seat 5 aim at the draw-in groove of timing slider, then wear in shaft hole 51 slider location axle 6, and penetrate the draw-in groove of timing slider, and fix slider location axle 6 fastening in shaft hole 51 through fastening screw 53, drive rotation positioning seat 7 at last and rotate, make rotation positioning seat 7 connect the flat position locating piece 8 of plunger core and rotate to the flat position one side of plunger core, and the position of the flat position locating piece 8 of upper and lower regulation plunger core, and fix with the screw, make the flat position locating piece 8 of plunger core fix a position the flat position of plunger core, accomplish the location of plunger matching part promptly.
After the plunger matching part is positioned, a pressure reduction pump calibration mode can be carried out to carry out sealing test, a pedal of a working table of the pressure reduction pump calibration is stepped on by feet, a second movable pressure head connected with a high-pressure oil pipe on the equipment moves downwards to enable the second movable pressure head to be tightly attached to a first movable pressure head 1, a mounting seat surface in a threaded cavity of a plunger sleeve is pressed by the first movable pressure head 1, high-pressure oil is injected into a cavity formed among the plunger sleeve, a timing slide block and a plunger core through a connecting through hole 101 of the high-pressure oil pipe and the first movable pressure head 1, and the oil pressure is increased to be more than the upper limit of a specified pressure value of 20 MPa; when the pedal of the workbench is released, high-pressure oil in the cavity of the plunger and barrel assembly passes through gaps among the plunger core, the timing slide block and the plunger sleeve, the high-pressure oil begins to leak slowly, the oil pressure begins to decline slowly, when the oil pressure drops to the upper limit of a specified pressure value of 20MPa, the time counting is started by the digital device, when the oil pressure drops to the lower limit of the specified pressure value of 15MPa, the time counting is stopped by the digital device instantly, and the displayed time is the tightness detection value of the secondary plunger and barrel assembly; and comparing the detection value of the detected plunger and barrel assembly with the tightness detection value of the standard plunger and barrel assembly, so that unqualified parts such as qualified parts, loose pumps, tight pumps and the like can be distinguished.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which shall all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a plunger and barrel spare step-down detection device which characterized in that: including positioning fixture, first piston head and second piston head, positioning fixture includes the support, the support includes the bottom plate, just connect the plunger bushing scapular surface locating plate of seting up the constant head tank on the support, the bottom plate is located the constant head tank downside and connects the lower prop, plunger bushing scapular surface locating plate one side is through connecting seat link block location axle, slider location axle can penetrate in the draw-in groove of timing slider, rotate the connection rotation positioning seat on the bottom plate, rotate the flat position locating piece of positioning seat connection plunger core, first piston head wears the threaded cavity at the plunger bushing, second piston head can press at first piston head, high pressure oil pipe is connected to second piston head, the connect through-hole of intercommunication second piston head high pressure oil pipe and plunger bushing is seted up to first piston head.
2. The plunger and barrel assembly decompression detecting device according to claim 1, wherein: the plunger bushing scapular surface positioning plate is detachably connected with the bracket through screws.
3. The plunger and barrel assembly decompression detecting device according to claim 1, wherein: set up the installation and lead to the groove on the bottom plate, the bottom plate is located the logical groove downside of installation and connects bush positioning cover, bush positioning cover installs first bush on the inner wall that the groove was led to in the installation, the swivel mount that rotates the positioning seat through the bottom is worn rotatable be connected to on the bottom plate in the first bush, just the spread groove is seted up to the rotation positioning seat, just the connection connecting hole is seted up to the position that the bottom plate is located the spread groove, the rotation positioning seat passes spread groove cooperation connecting hole and bottom plate fixed connection through the bolt.
4. The plunger and matching part decompression detection device according to claim 3, wherein: the lower end of the lower supporting column is provided with an external thread, the rotating positioning seat is matched with the external thread, a threaded hole is formed in the rotating positioning seat, the lower supporting column is in threaded connection with the threaded hole, and a locking nut is connected to the external thread of the lower supporting column.
5. The plunger and matching part decompression detection device according to claim 4, wherein: rotation connecting hole is all seted up to lower support column outside circumference and lock nut circumference, but rotation connecting hole joint is used for rotating lower support column and lock nut's connecting rod.
6. The plunger and matching part decompression detection device according to claim 3, wherein: the periphery of the rotation positioning seat is marked with an angle mark, and the front side of the bottom plate is marked with a zero mark in a matched mode.
7. The plunger and matching part decompression detection device according to claim 1, wherein: the connecting seat is provided with a shaft hole for installing the sliding block positioning shaft, a second shaft sleeve is arranged between the shaft hole and the sliding block positioning shaft, and one side of the shaft hole is connected with a fastening screw for fastening the sliding block positioning shaft.
8. The plunger and matching part decompression detecting device according to claim 1 or 7, wherein: the connecting seat is provided with a vertical long groove, and the connecting seat penetrates through the vertical long groove through a bolt to be connected with the plunger sleeve scapular surface positioning plate.
9. The plunger and barrel assembly decompression detecting device according to claim 1, wherein: the rotary positioning seat is provided with a vertical long round hole connected with the plunger core flat positioning block, and the plunger core flat positioning block penetrates through the vertical long round hole through a bolt to be connected with the rotary positioning seat.
10. The plunger and matching part decompression detection device according to claim 1, wherein: and the lower end of the first movable pressure head is connected with a sealing ring for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221927477.0U CN217687747U (en) | 2022-07-25 | 2022-07-25 | Plunger matching parts step-down detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221927477.0U CN217687747U (en) | 2022-07-25 | 2022-07-25 | Plunger matching parts step-down detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217687747U true CN217687747U (en) | 2022-10-28 |
Family
ID=83719709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221927477.0U Active CN217687747U (en) | 2022-07-25 | 2022-07-25 | Plunger matching parts step-down detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217687747U (en) |
-
2022
- 2022-07-25 CN CN202221927477.0U patent/CN217687747U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207556444U (en) | A kind of detection device of engine belt pulley flatness | |
| CN217687747U (en) | Plunger matching parts step-down detection device | |
| CN215177607U (en) | High-precision leveling and aligning workbench for roundness measuring instrument | |
| CN210464336U (en) | Angle adjusting workbench for measuring angle of flange of bearing inner ring | |
| CN205066645U (en) | Adjacent recess interval measuring device of hole | |
| CN115077815A (en) | Plunger and barrel assembly decompression detection device and detection method thereof | |
| CN113702027B (en) | Device for testing compression resistance of rubber sealing ring of oil pump valve | |
| CN212674026U (en) | Detection device for detecting axial clearance of bearing | |
| CN216694795U (en) | Coaxiality detection tool | |
| CN110579197A (en) | Axial clearance measuring instrument for double-row tapered roller bearing | |
| CN209055060U (en) | A kind of coaxiality check fixture of the support of bearing | |
| CN208059736U (en) | Integrated location cubing for scroll compression machine crankshaft | |
| CN106679530A (en) | Measurement clamp | |
| CN110553566A (en) | method and device for measuring small assembly height of tapered roller bearing | |
| CN206514785U (en) | Brake-caliper support orthodrome universal check tool | |
| CN207007056U (en) | The measurement apparatus of diesel injection pump fuel delivery command range | |
| CN212300303U (en) | Supporting seat assembly for detecting cylindricity of cylinder hole of engine cylinder block | |
| CN112880521A (en) | Bearing section height measuring instrument | |
| CN215064182U (en) | Measuring tool for repairing diesel engine fuel pump seat frame | |
| CN213321223U (en) | Vulcanizing drum bearing fixing device of drum type vulcanizing machine | |
| CN219151378U (en) | Part roundness correction clamp | |
| CN108917665A (en) | A kind of multi-diameter shaft outer diameter and bore comprehensive check tool | |
| CN216898695U (en) | Bearing hole depth detection tool | |
| CN220912171U (en) | Oil blocking jumping gauge | |
| CN211668454U (en) | Micro-gap measuring device for piston and cylinder of Stirling refrigerator compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |