CN216350029U - Hydraulic stretcher testing device - Google Patents
Hydraulic stretcher testing device Download PDFInfo
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- CN216350029U CN216350029U CN202023242763.7U CN202023242763U CN216350029U CN 216350029 U CN216350029 U CN 216350029U CN 202023242763 U CN202023242763 U CN 202023242763U CN 216350029 U CN216350029 U CN 216350029U
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 13
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011326 mechanical measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a hydraulic stretcher testing device, which comprises a hydraulic stretcher body and a connecting piece, wherein the connecting piece comprises a shell, the shell is cylindrical, the end surface of the shell is provided with a through groove in a penetrating manner, the inner surface of the through groove is provided with a plurality of sliding grooves which are uniformly distributed in an annular manner, the inner surfaces of the sliding grooves are respectively provided with a sliding block in a sliding manner, and the outer surfaces of the sliding blocks are respectively fixedly connected with a fixed block, the hydraulic stretcher body is convenient to connect with the force measuring device.
Description
Technical Field
The utility model relates to the technical field of mechanical measurement and detection, in particular to a hydraulic stretcher testing device.
Background
The hydraulic bolt tensioner is called as a hydraulic tensioner for short and has the functions of fastening and dismounting bolts. The method can be widely applied to industries such as wind power generation, metallurgical mines, petrochemical industry, ship industry, nuclear power, rolling stock, heavy machinery and the like. The bolt is stretched in the elastic deformation area by the aid of hydraulic power provided by the ultra-high pressure pump and the elastic amplitude allowed by materials, and the purpose of fastening or detaching the bolt is achieved. In addition, the device can be used as a device for applying axial force by hydraulic interference connection to perform jacking installation. Especially in the working environment with serious pollution or limited space area, the hydraulic stretcher is difficult to replace by any other tool. Due to the specific characteristics of the working environment and the accurate force value, the calibration device is required to be capable of measuring the hydraulic stretcher with high accuracy.
There are generally three measurement modes for such calibration devices. Firstly through drawing to power force cell sensor direct measurement, secondly through reverse force cell sensor measurement, this device also has the connecting piece more, and three are through inherent for the bolt annular (section of thick bamboo cylindricality) force cell sensor direct measurement, and the connection of above three kinds of measuring methods is all comparatively complicated, and the operation is comparatively inconvenient, for this reason, provides a hydraulic stretcher testing arrangement.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a testing device for a hydraulic tensioner, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic stretcher testing device comprises a hydraulic stretcher body, wherein the hydraulic stretcher body comprises a main body, the main body is cylindrical, one end of the main body is provided with a supporting leg, a driving cavity is arranged inside the main body, a piston is arranged inside the driving cavity in a sliding manner, the end surface of the piston is provided with a bolt fixing hole, the hydraulic stretcher testing device also comprises a connecting piece, the connecting piece comprises a shell, the shell is cylindrical, the end surface of the shell is provided with a through groove in a penetrating manner, the through groove is in a circular truncated cone shape and is coaxially arranged with the shell, the diameter of the through groove close to one end of the main body is smaller, the inner surface of the through groove is provided with a plurality of sliding grooves, the sliding grooves are uniformly distributed in an annular manner, the inner surfaces of the sliding grooves are respectively provided with sliding blocks in a sliding manner, the outer surfaces of the sliding blocks are respectively and fixedly connected with fixing blocks, and the bolt fixing hole is screwed with a force measuring screw rod, the force measuring screw rod is positioned between the fixed blocks, and the connecting piece is fixedly connected with a force measuring device.
Preferably, the force measuring device comprises a supporting seat, the supporting seat is annular, a fixing plate is arranged at the lower end of the supporting seat, the fixing plate is fixedly connected with the connecting piece through a connecting rod, and a dynamometer is arranged between the supporting seat and the fixing plate.
Preferably, the cross section of each sliding groove is wedge-shaped, and the cross section of each sliding block is matched with the corresponding sliding groove.
Preferably, the fixed block is kept away from one end of a side surface difference fixedly connected with member of hydraulic stretcher body, the other end fixedly connected with transmission block of member, the transmission block corresponds and is close to a side surface that leads to the groove axial lead is equipped with the movable groove respectively, the internal surface slip in movable groove is equipped with same plate, the plate is circular, just the plate with lead to the coaxial setting of groove, the plate is close to one end of a side surface axle center department fixedly connected with control lever of fixed plate, the other end of control lever passes the terminal surface of fixed plate, just the control lever with sliding connection between the fixed plate.
Preferably, the surface of the control rod is fixedly connected with a limiting plate, and a spring is arranged between the limiting plate and the fixing plate.
Preferably, one end of the control rod, which is far away from the transmission block, is fixedly connected with a control handle.
Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a hydraulic pressure elongator testing arrangement, through setting up the hydraulic pressure elongator body, bolt fastening hole department spiro union dynamometry screw rod on the hydraulic pressure elongator body, be connected dynamometry screw rod and dynamometry device through the connecting piece, thereby it is convenient fixed, through setting up the shell, set up round platform shape logical groove at the shell terminal surface, and set up spout and slider respectively in logical inslot portion, make the slider can slide along the spout, through fixed connection fixed block on the slider, press from both sides tight dynamometry screw rod by the fixed block, thereby when the device is stretched, the fixed block moves to logical groove axle center department under the effect of frictional force, further press from both sides tight dynamometry screw rod, make the firm connection between connecting piece and dynamometry screw rod, make things convenient for being connected between hydraulic pressure elongator body and the dynamometry device.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic bottom view of the connector of the present invention;
fig. 3 is a schematic view of the bottom cross-section of the transmission of the present invention.
In the figure: 1-main body, 2-supporting leg, 3-driving cavity, 4-piston, 5-fixing hole, 6-shell, 7-through groove, 8-sliding groove, 9-sliding block, 10-fixing block, 11-force measuring screw, 12-supporting seat, 13-fixing plate, 14-plate, 15-control rod, 16-limiting plate, 17-spring, 18-control handle, 19-dynamometer, 20-connecting rod, 21-rod, 22-transmission block and 23-movable groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a hydraulic stretcher testing device comprises a hydraulic stretcher body, wherein the hydraulic stretcher body comprises a main body 1, the main body 1 is cylindrical, one end of the main body 1 is provided with a supporting leg 2, a driving cavity 3 is arranged inside the main body 1, a piston 4 is arranged inside the driving cavity 3 in a sliding manner, hydraulic oil is pumped into the driving cavity 3 so as to jack the piston 4, the end face of the piston 4 is provided with a bolt fixing hole 5 for connecting a bolt, the connecting piece further comprises a connecting piece, the connecting piece comprises a shell 6, as shown in figure 2, the shell 6 is cylindrical, the end face of the shell 6 is provided with a through groove 7 in a penetrating manner, as shown in figure 1, the through groove 7 is in a circular truncated cone shape, the through groove 7 and the shell 6 are coaxially arranged, the diameter of the through groove 7, which is close to one end of the main body 1, is smaller, the inner surface of the through groove 7 is provided with a plurality of sliding grooves 8, the utility model discloses a bolt force measuring device, including spout 8, fixed block 10, connecting piece fixedly connected with force measuring screw 11, force measuring screw 11 is located between fixed block 10, connecting piece fixedly connected with force measuring device, it is right to test the pulling force that force measuring screw 11 receives, spout 8's internal surface slides respectively and is equipped with slider 9, slider 9 can be along corresponding spout 8 slides from top to bottom, the surface of slider 9 is fixedly connected with fixed block 10 respectively, as shown in fig. 2, fixed block 10 is fan-shaped respectively, fixed block 10 forms circular gap in center department, 5 spiro unions in bolt fastening hole have force measuring screw 11, force measuring screw 11 is located between the fixed block 10, connecting piece fixedly connected with force measuring device.
Particularly, the measuring force device includes supporting seat 12, supporting seat 12 is the annular, supporting leg 2 supports the upper surface of supporting seat 12, the lower extreme of supporting seat 12 is equipped with fixed plate 13, fixed plate 13 is circularly, fixed plate 13 through connecting rod 20 with connecting piece fixed connection, supporting seat 12 with be equipped with dynamometer 19 between the fixed plate 13, dynamometer 19 is the annular, works as dynamometry screw rod 11 drives fixed plate 13 through the connecting piece and removes towards supporting seat 12, and then will be located fixed plate 13 with between the supporting seat 12 dynamometer 19 presss from both sides tightly, dynamometer 19 measures the stress that receives.
Specifically, as shown in fig. 2, the cross section of the sliding groove 8 is wedge-shaped, and the cross section of the sliding block 9 is matched with the corresponding sliding groove 8, so that the matching between the sliding groove 8 and the sliding block 9 is tighter.
Specifically, one side surface of the fixed block 10 far away from the hydraulic stretcher body is fixedly connected with one end of a rod 21, the other end of the rod 21 is fixedly connected with a transmission block 22, the transmission block 22 is provided with a movable groove 23 corresponding to one side surface near the axial lead of the through groove 7, the inner surface of the movable groove 23 is provided with the same plate 14 in a sliding manner, as shown in fig. 3, the plate 14 is circular, the plate 14 and the through groove 7 are coaxially arranged, the transmission block 22 is in an annular shape and is arranged at the edge of the plate 14, the plate 14 is fixedly connected with one end of a control rod 15 near the axial lead of one side surface of the fixed plate 13, the other end of the control rod 15 penetrates through the end surface of the fixed plate 13, the control rod 15 is in sliding connection with the fixed plate 13, and the plate 14 can be driven by controlling the control rod 15, and then drive the driving block 22 to move, the driving block 22 drives the corresponding fixed block 10 to move through the rod 21, and the disassembly is convenient.
Particularly, the fixed surface of control lever 15 is connected with limiting plate 16, limiting plate 16 with be equipped with spring 17 between the fixed plate 13, spring 17 cover is established the outside of control lever 15, just spring 17 makes control lever 15 produces the orientation the direction of connecting piece slides, and then conveniently is connected dynamometry screw rod 11.
Specifically, one end of the control rod 15, which is far away from the transmission block 22, is fixedly connected with a control handle 18, so that the control rod 15 is conveniently controlled.
The working principle is as follows: when the utility model is used, the force measuring screw 11 is screwed on the fixing hole 5 of the hydraulic stretcher body, then the force measuring screw 11 is inserted from the position between the fixing blocks 10, the fixing blocks 10 move towards the fixing plate 13 under the action of the fixing blocks and open under the action of the through grooves 7, the force measuring screw 11 can be inserted into the position between the fixing blocks 10, then the hydraulic stretcher body is started, the hydraulic stretcher body drives the force measuring screw 11 to move, the fixing blocks 10 move along with the force measuring screw under the action of friction force and close under the action of the through grooves 7, so that the fixing blocks 10 and the force measuring screw 11 are combined more tightly, the force measuring screw 11 drives the fixing plate 13, the supporting legs 2 abut against the supporting seat 12, the supporting seat 12 and the fixing plate 13 clamp the dynamometer 19 to measure the stress, after the measurement, the control rod 15 is pushed, the control rod 15 drives the plate 14 to move, the plate 14 simultaneously drives the transmission block 22 to move, the transmission block 22 drives the fixing block 10 to move at the same time, the fixing block 10 is opened, the force measuring screw 11 is taken out, and the disassembly is completed.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hydraulic stretcher testing arrangement, includes the hydraulic stretcher body, the hydraulic stretcher body includes main part (1), main part (1) are cylindrically, the one end of main part (1) is equipped with supporting leg (2), the inside of main part (1) is equipped with drive cavity (3), the inside slip of drive cavity (3) is equipped with piston (4), the terminal surface of piston (4) is equipped with bolt fastening hole (5), its characterized in that: still including the connecting piece, the connecting piece includes shell (6), shell (6) are cylindrically, the terminal surface of shell (6) runs through and is equipped with logical groove (7), it is round platform shape to lead to groove (7), just lead to groove (7) with shell (6) coaxial setting, it is close to lead to groove (7) the diameter of main part (1) one end is less, the internal surface that leads to groove (7) is equipped with a plurality of spouts (8), spout (8) are annular evenly distributed, the internal surface of spout (8) slides respectively and is equipped with slider (9), the surface difference fixedly connected with fixed block (10) of slider (9), bolt fastening hole (5) department spiro union has dynamometry screw rod (11), dynamometry screw rod (11) are located between fixed block (10), connecting piece fixedly connected with measuring force device.
2. A hydraulic tensioner testing device as claimed in claim 1, wherein: the force measuring device comprises a supporting seat (12), the supporting seat (12) is annular, a fixing plate (13) is arranged at the lower end of the supporting seat (12), the fixing plate (13) is fixedly connected with the connecting piece through a connecting rod (20), and a dynamometer (19) is arranged between the supporting seat (12) and the fixing plate (13).
3. A hydraulic tensioner testing device as claimed in claim 2, wherein: the cross section of the sliding groove (8) is wedge-shaped, and the cross section of the sliding block (9) is matched with the corresponding sliding groove (8).
4. A hydraulic tensioner testing device as claimed in claim 2, wherein: keep away from fixed block (10) one side surface difference fixedly connected with rod piece (21)'s one end of hydraulic stretcher body, the other end fixedly connected with transmission piece (22) of rod piece (21), transmission piece (22) correspond and are close to a side surface that leads to groove (7) axial lead is equipped with movable groove (23) respectively, the internal surface slip in movable groove (23) is equipped with same plate (14), plate (14) are circularly, just plate (14) with lead to the coaxial setting of groove (7), plate (14) are close to a side surface axle center department fixedly connected with control lever (15)'s one end of fixed plate (13), the other end of control lever (15) passes the terminal surface of fixed plate (13), just control lever (15) with sliding connection between fixed plate (13).
5. The hydraulic tensioner test device of claim 4, wherein: the surface of the control rod (15) is fixedly connected with a limiting plate (16), and a spring (17) is arranged between the limiting plate (16) and the fixing plate (13).
6. A hydraulic tensioner testing device as claimed in claim 5, wherein: one end of the control rod (15) far away from the transmission block (22) is fixedly connected with a control handle (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242763.7U CN216350029U (en) | 2020-12-29 | 2020-12-29 | Hydraulic stretcher testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242763.7U CN216350029U (en) | 2020-12-29 | 2020-12-29 | Hydraulic stretcher testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216350029U true CN216350029U (en) | 2022-04-19 |
Family
ID=81128399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023242763.7U Expired - Fee Related CN216350029U (en) | 2020-12-29 | 2020-12-29 | Hydraulic stretcher testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216350029U (en) |
-
2020
- 2020-12-29 CN CN202023242763.7U patent/CN216350029U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |