CN211121769U - Automatic accurate calibration equipment of hydraulic wrench - Google Patents
Automatic accurate calibration equipment of hydraulic wrench Download PDFInfo
- Publication number
- CN211121769U CN211121769U CN201922273626.0U CN201922273626U CN211121769U CN 211121769 U CN211121769 U CN 211121769U CN 201922273626 U CN201922273626 U CN 201922273626U CN 211121769 U CN211121769 U CN 211121769U
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- hydraulic wrench
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Abstract
The utility model discloses an automatic accurate calibration equipment of hydraulic wrench, including fixed baseplate, battery subject, reaction force baffle, detection case, torque sensor and control switch, the storage chamber has been seted up to fixed baseplate's inside, and the inside head rod that is fixed with in left side of storage chamber, first sleeve has been cup jointed on the surface of head rod, first telescopic left side is connected with the second sleeve, and the inside butt joint of second sleeve has the second connecting rod, the inside of second connecting rod is inserted and is equipped with supporting screw, fixed baseplate's top is connected with the detection case, and the front of detection case is connected with the display screen. The utility model discloses a be provided with second sleeve, second connecting rod and supporting screw, can increase the stability of the device when carrying out the check-up, and the device can conveniently change the measuring head through being provided with spacing spring, spacing box and stopper to conveniently adapt to the hydraulic spanner of different models.
Description
Technical Field
The utility model relates to a calibration equipment technical field specifically is an automatic accurate calibration equipment of hydraulic wrench.
Background
The bolt connection mode is very commonly applied to connection of petrochemical devices, after a nut is screwed down, an axial pretightening force is applied to the bolt, the pretightening force has great influence on the performance and the connection effect of the bolt, the pretightening force is too large, and the bolt can generate plastic deformation, so that fatigue fracture is realized, and the service life of the bolt is shortened; the pretightening force is too small, the workpiece connection is too loose, vibration, displacement and sealing leakage are easy to generate, the connection reliability is influenced, a hydraulic wrench can be used for fastening the bolt for accurately applying the pretightening force, but the torque value of the hydraulic wrench can be slightly deviated after the hydraulic wrench is used for a long time, so that the hydraulic wrench needs to be checked by using a checking device.
Present current partial hydraulic wrench produces torsion when carrying out the torsion check-up is bigger, and present partial check-up device just places it in table surface for the convenience of measuring and detects, but its bottom of present partial check-up device is limited with table surface's area of contact, examine time measuring to the hydraulic pressure board, the phenomenon that stability is not enough may be caused, and present partial check-up device, install the measuring head through the bolt, but install through the bolt, when needing to change the measuring head, still need dismantle the bolt, it is not convenient enough to make the change of measuring head, the check-up time has been increased, consequently, need an automatic accurate check-up device of hydraulic wrench to solve above-mentioned problem urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic accurate calibration equipment of hydraulic wrench to solve the current part calibration equipment stability that proposes in the above-mentioned background art not high, and the problem of the change of being not convenient for of current part calibration equipment measuring head.
In order to achieve the above object, the utility model provides a following technical scheme: an automatic accurate calibration device of a hydraulic wrench comprises a fixed base, a battery main body, a reaction force baffle, a detection box, a torque sensor and a control switch, wherein a containing cavity is formed in the fixed base, a first connecting rod is fixed in the left side of the containing cavity, a first sleeve is sleeved on the surface of the first connecting rod, a second sleeve is connected to the left side of the first sleeve, a second connecting rod is abutted to the inside of the second sleeve, a supporting screw rod is inserted in the second connecting rod, the top end of the fixed base is connected with the detection box, the front side of the detection box is connected with a display screen, the reaction force baffle is connected to the outer surface of the left side of the detection box, the control switch is connected to the outer surface of the right side of the detection box, the battery main body is connected to the inside of the detection box, and the torque sensor is fixed in the top end of the detection box, and torque sensor's left side is connected with the bearing piece, the surperficial butt of bearing piece has the measuring head, the annular spread groove has been seted up to the inside of detection case, and the inside butt of annular spread groove has first linkage block, the left side of first linkage block is connected with spacing box, and runs through spacing pull rod in the inside of spacing box, spacing spring has been cup jointed on the surface of spacing pull rod, the bottom of spacing pull rod is connected with the stopper.
Preferably, the inner shape and size of the second sleeve are the same as the surface shape and size of the second connecting rod, and the second connecting rod is inserted into the second sleeve.
Preferably, a through hole is formed in the left side of the second connecting rod, threads are arranged inside the through hole and on the surface of the supporting screw rod, the second connecting rod is sleeved on the surface of the supporting screw rod, and the second connecting rod and the supporting screw rod form a thread type structure.
Preferably, the output end of the control switch is electrically connected with the input end of the torque sensor through a wire, and the output end of the reaction force baffle is electrically connected with the input end of the control switch through a wire.
Preferably, the inner shape and size of the annular connecting groove are the same as the surface shape and size of the first connecting block, the first connecting block is inserted into the annular connecting groove, and the annular connecting groove and the first connecting block form a sliding structure.
Preferably, one end of the limiting spring is fixedly connected to the inner wall of the limiting box, the other end of the limiting spring abuts against the surface of the limiting block, and the limiting spring, the limiting box and the limiting block form an elastic structure.
Compared with the prior art, the beneficial effects of the utility model are that: this automatic accurate calibration equipment of hydraulic wrench is through being provided with second sleeve, second connecting rod and supporting screw, can increase the stability of the device when carrying out the check-up, and the device can conveniently change the measuring head through being provided with spacing spring, spacing box and stopper to conveniently adapt to the hydraulic wrench of different models.
(1) The device is through being provided with second sleeve, second connecting rod and supporting screw, before using the device to check hydraulic wrench, can take out the second connecting rod from the inside second sleeve to take out the second connecting rod to the inside maximum department of stroke of second sleeve, then the knob at rotatable supporting screw top, make supporting screw descend through threaded structure, and make supporting screw contact table surface, thereby can increase the area of contact of the device with table surface, and then can increase the stability of the device when checking.
(2) The device is through being provided with limit spring, spacing box and stopper, when needs carry out the torsion check to the torque wrench of different models, can stimulate limit pull rod at first, make the stopper of being connected with limit pull rod contract to spacing box inside, then can take out the measuring head, make the measuring head and accept the piece no longer the butt, thereby can accomplish the dismantlement to the measuring head, can carry out the butt with the measuring head of different models with accepting the piece afterwards, then make the stopper carry out the block through limit spring's elastic action and measuring head, thereby can accomplish the change to the measuring head, and then enable the device can adapt to the measuring head of different models, and can carry out the torsion check to the measuring head of different models.
Drawings
FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic left-side sectional view of the structure of the receiving block and the measuring head of the present invention;
fig. 4 is a schematic view of the working storage state of the support screw of the present invention.
In the figure: 1. a fixed base; 2. a receiving cavity; 3. a first connecting rod; 4. a first sleeve; 5. a second sleeve; 6. a second connecting rod; 7. a support screw; 8. a battery main body; 9. a reaction force baffle; 10. a bearing block; 11. a measuring head; 12. a detection box; 13. a torque sensor; 14. a control switch; 15. an annular connecting groove; 16. a first connection block; 17. a limiting pull rod; 18. a limiting spring; 19. a limiting box; 20. a limiting block; 21. a display screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: an automatic accurate calibration device of a hydraulic wrench comprises a fixed base 1, a battery main body 8, a reaction force baffle 9, a detection box 12, a torque sensor 13 and a control switch 14, wherein a containing cavity 2 is arranged inside the fixed base 1, a first connecting rod 3 is fixed inside the left side of the containing cavity 2, a first sleeve 4 is sleeved on the surface of the first connecting rod 3, a second sleeve 5 is connected on the left side of the first sleeve 4, the inner shape and size of the second sleeve 5 are the same as the surface shape and size of the second connecting rod 6, the second connecting rod 6 is inserted inside the second sleeve 5, the same shape and size can reduce the shaking generated when the second connecting rod 6 moves inside the second sleeve 5, the second connecting rod 6 abuts against the inside of the second sleeve 5, a through hole is arranged on the left side of the second connecting rod 6, and threads are arranged inside the through hole and on the surface of a supporting screw 7, second connecting rod 6 cup joints on the surface of supporting screw 7, and second connecting rod 6 and supporting screw 7 constitute screw thread formula structure, enables supporting screw 7 through constituting screw thread formula structure and descends along the perforation of 6 inside setings of second connecting rod, and the inside of second connecting rod 6 is inserted and is equipped with supporting screw 7, and the top of fixed baseplate 1 is connected with detection case 12.
And the front of detection case 12 is connected with display screen 21, and the model of this display screen 21 is HYWEI1602-1, and the left side surface of detection case 12 is connected with reaction force baffle 9, and the right side surface of detection case 12 is connected with control switch 14, and control switch 14's output is connected through the wire and torque sensor 13's input electricity, and reaction force baffle 9's output is connected through the wire and control switch 14's input electricity.
The internal connection of detection case 12 has battery body 8, the top of detection case 12 is inside to be fixed with torque sensor 13 through the bolt, the model of this torque sensor 13 is DYN-206, and torque sensor 13's left side is connected with and accepts piece 10, accept the surface butt of piece 10 and have measuring head 11, detection case 12's inside is seted up annular spread groove 15, the inside shape size of annular spread groove 15 is the same with the surface shape size of first connecting block 16, and first connecting block 16 inserts in the inside of annular spread groove 15, annular spread groove 15 and first connecting block 16 constitute the slidingtype structure, through constituting the slidingtype structure, can make measuring head 11 rotate, spacing box 19 also follows and rotate together, make the block of stopper 20 to measuring head 11 not loosen, and the inside butt of annular spread groove 15 has first connecting block 16, the left side of first connecting block 16 is connected with spacing box 19, and the inside of spacing box 19 runs through there is spacing pull rod 17, spacing spring 18 has been cup jointed on the surface of spacing pull rod 17, the inner wall at spacing box 19 of one end fixed connection of spacing spring 18, and the other end butt of spacing spring 18 is on the surface of stopper 20, spacing spring 18, spacing box 19 and stopper 20 constitute elastic construction, stopper 20 carries out automatic block with the recess on measuring head 11 surface when constituting elastic construction ability, the bottom of spacing pull rod 17 is connected with stopper 20.
The working principle is as follows: the device is powered by a battery, when in use, before the device is used for checking the hydraulic wrench, the supporting screw 7 can be taken out of the containing cavity 2 firstly, the first sleeve 4 rotates around the first connecting rod 3 by one hundred eighty degrees, then the second connecting rod 6 can be drawn out from the second sleeve 5, the second connecting rod 6 is drawn to the maximum stroke position in the second sleeve 5, then the knob at the top end of the supporting screw 7 can be rotated, the supporting screw 7 descends along the second connecting rod 6 through a threaded structure, and the supporting screw 7 contacts with the worktable, so that the contact area between the device and the worktable can be increased, the stability of the device during checking can be increased, when torque checking is required, a driving shaft of the hydraulic wrench can be sleeved on the surface of the measuring head 11 firstly, then the control switch 14 is opened, so that the battery body 8 supplies power to the torque sensor 13, and then, the hydraulic wrench is externally connected with a hydraulic pump, the hydraulic wrench starts to drive the measuring head 11 to rotate, the torque sensor 13 can check and record the torque generated by the rotation of the measuring head 11, and the checking result is displayed on the surface of the display screen 21, so that the torque checking on the pressure wrench can be completed.
When the torsion check is carried out to the torque spanner of different models to needs, can firstly stimulate limit pull rod 17, make the stopper 20 of being connected with limit pull rod 17 contract to the inside of limit box 19, and make the inside limit spring 18 of limit box 19 present and hold power compression state, make stopper 20 and measuring head 11 no longer carry out the block, then can take out measuring head 11, make measuring head 11 with accept a 10 butt no longer, thereby can accomplish the dismantlement to measuring head 11, can carry out the butt with the measuring head 11 of different models afterwards, then make stopper 20 carry out the block through limit spring 18's spring action and stopper 20, thereby can accomplish the change to measuring head 11, and then enable the device can adapt to the measuring head 11 of different models, and can carry out torsion detection to the hydraulic spanner of different models.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an automatic accurate calibration equipment of hydraulic wrench, includes fixed baseplate (1), battery subject (8), reaction force baffle (9), detection case (12), torque sensor (13) and control switch (14), its characterized in that: the detection device is characterized in that a containing cavity (2) is formed in the fixed base (1), a first connecting rod (3) is fixed inside the left side of the containing cavity (2), a first sleeve (4) is sleeved on the surface of the first connecting rod (3), a second sleeve (5) is connected to the left side of the first sleeve (4), a second connecting rod (6) is abutted to the inside of the second sleeve (5), a supporting screw (7) is inserted into the inside of the second connecting rod (6), the top end of the fixed base (1) is connected with a detection box (12), the front of the detection box (12) is connected with a display screen (21), the outer surface of the left side of the detection box (12) is connected with a reaction force baffle (9), the outer surface of the right side of the detection box (12) is connected with a control switch (14), a battery main body (8) is connected inside the detection box (12), and a torque sensor (13) is fixed inside the top end of the detection box (12) through, and the left side of torque sensor (13) is connected with and holds joint block (10), the surperficial butt of holding joint block (10) has measuring head (11), annular spread groove (15) have been seted up to the inside of detection case (12), and the inside butt of annular spread groove (15) has first joint block (16), the left side of first joint block (16) is connected with spacing box (19), and the inside of spacing box (19) runs through has spacing pull rod (17), spacing spring (18) have been cup jointed on the surface of spacing pull rod (17), the bottom of spacing pull rod (17) is connected with stopper (20).
2. The automatic accurate verifying attachment of hydraulic wrench of claim 1, characterized in that: the inner shape and the size of the second sleeve (5) are the same as the surface shape and the size of the second connecting rod (6), and the second connecting rod (6) is inserted in the second sleeve (5).
3. The automatic accurate verifying attachment of hydraulic wrench of claim 1, characterized in that: the left side of the second connecting rod (6) is provided with a through hole, threads are arranged inside the through hole and on the surface of the supporting screw rod (7), the second connecting rod (6) is sleeved on the surface of the supporting screw rod (7), and the second connecting rod (6) and the supporting screw rod (7) form a thread type structure.
4. The automatic accurate verifying attachment of hydraulic wrench of claim 1, characterized in that: the output end of the control switch (14) is electrically connected with the input end of the torque sensor (13) through a lead, and the output end of the reaction force baffle plate (9) is electrically connected with the input end of the control switch (14) through a lead.
5. The automatic accurate verifying attachment of hydraulic wrench of claim 1, characterized in that: the size of the shape of the inside of the annular connecting groove (15) is the same as the size of the shape of the surface of the first connecting block (16), the first connecting block (16) is inserted in the inside of the annular connecting groove (15), and the annular connecting groove (15) and the first connecting block (16) form a sliding type structure.
6. The automatic accurate verifying attachment of hydraulic wrench of claim 1, characterized in that: one end of the limiting spring (18) is fixedly connected to the inner wall of the limiting box (19), the other end of the limiting spring (18) abuts against the surface of the limiting block (20), and the limiting spring (18), the limiting box (19) and the limiting block (20) form an elastic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922273626.0U CN211121769U (en) | 2019-12-17 | 2019-12-17 | Automatic accurate calibration equipment of hydraulic wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922273626.0U CN211121769U (en) | 2019-12-17 | 2019-12-17 | Automatic accurate calibration equipment of hydraulic wrench |
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| Publication Number | Publication Date |
|---|---|
| CN211121769U true CN211121769U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922273626.0U Active CN211121769U (en) | 2019-12-17 | 2019-12-17 | Automatic accurate calibration equipment of hydraulic wrench |
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| CN (1) | CN211121769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112293A (en) * | 2022-07-01 | 2022-09-27 | 苏州莱测检测科技有限公司 | Wrench torque force based calibration device and calibration method thereof |
| CN115963007A (en) * | 2023-02-10 | 2023-04-14 | 西南交通大学 | Force measuring bolt calibration test device |
-
2019
- 2019-12-17 CN CN201922273626.0U patent/CN211121769U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115112293A (en) * | 2022-07-01 | 2022-09-27 | 苏州莱测检测科技有限公司 | Wrench torque force based calibration device and calibration method thereof |
| CN115112293B (en) * | 2022-07-01 | 2024-01-12 | 苏州莱测检测科技有限公司 | Device and method for verifying torque force based on wrench |
| CN115963007A (en) * | 2023-02-10 | 2023-04-14 | 西南交通大学 | Force measuring bolt calibration test device |
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