CN117760759A - Jack calibration device - Google Patents
Jack calibration device Download PDFInfo
- Publication number
- CN117760759A CN117760759A CN202311518863.3A CN202311518863A CN117760759A CN 117760759 A CN117760759 A CN 117760759A CN 202311518863 A CN202311518863 A CN 202311518863A CN 117760759 A CN117760759 A CN 117760759A
- Authority
- CN
- China
- Prior art keywords
- jack
- calibrated
- tension rod
- force measuring
- anchoring
- 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.)
- Pending
Links
- 238000004873 anchoring Methods 0.000 claims abstract description 65
- 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 abstract description 26
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to the technical field of measurement calibration, and particularly discloses a jack calibration device which is used for calibrating a jack to be calibrated; the device comprises a supporting pedestal, a force measuring assembly, a tension rod, a first anchoring piece and a second anchoring piece, wherein the force measuring assembly is arranged on the supporting pedestal and used for installing a jack to be calibrated, one end of the tension rod is connected with the supporting pedestal, the other end of the tension rod penetrates through the jack to be calibrated, the first anchoring piece is arranged on the jack to be calibrated and sleeved on the outer side of the tension rod, and the second anchoring piece is arranged at the bottom of the supporting pedestal and sleeved on the outer side of the tension rod. According to the invention, the first anchoring piece and the second anchoring piece are oppositely pulled by the tensioning rod, so that the problem that the large-tonnage through jack is difficult to calibrate is solved under the self-balancing state of the internal force of the jack to be calibrated.
Description
Technical Field
The invention relates to the technical field of measurement calibration, in particular to a jack calibration device.
Background
The large-span cable-stayed bridge is one of main bridge types crossing large rivers and deep mountain canyons, and is facing to urgent demands of collaborative development of various rail transit, and more bridges tend to adopt multifunctional expressways, railways, municipal roads and the like into a whole.
The stay cable is a main way for transferring girder load to a cable tower, as the span of the cable-stayed bridge is larger and larger, the cable force of the stay cable is larger and larger, the tonnage of the stay cable tensioning tool is larger and larger in the construction period, the tension precision of the cable force in the construction process directly influences the bridge line shape, the jack to be calibrated in the stay cable tensioning process needs to be subjected to strict calibration before construction, the tension force of the existing stay cable tensioning tool reaches 2000t, the tension force is large, the risk of the traction process is high, and the calibration device in the existing market cannot meet the calibration requirement.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the jack calibration device, wherein the first anchoring piece and the second anchoring piece are oppositely pulled through the tensioning rod, so that the problem of difficult calibration of the large-tonnage through jack is solved under the self-balancing state of the internal force of the jack to be calibrated;
the invention solves the technical problems by adopting the following solution:
the jack calibration device is used for calibrating a jack to be calibrated; the device comprises a supporting pedestal, a force measuring assembly, a tension rod, a first anchoring piece and a second anchoring piece, wherein the force measuring assembly is arranged on the supporting pedestal and used for installing a jack to be calibrated, one end of the tension rod is connected with the supporting pedestal, the other end of the tension rod penetrates through the jack to be calibrated, the first anchoring piece is arranged on the jack to be calibrated and sleeved on the outer side of the tension rod, and the second anchoring piece is arranged at the bottom of the supporting pedestal and sleeved on the outer side of the tension rod.
In some of the possible embodiments of the present invention,
the first anchoring piece comprises a tensioning base plate which is arranged at the telescopic end of the jack to be calibrated and sleeved on the outer side of the tensioning rod, and a first anchoring nut which is arranged on the tensioning base plate and sleeved on the outer side of the tensioning rod.
In some of the possible embodiments of the present invention,
the second anchoring piece and the first anchoring piece have the same structure and comprise an anchoring base plate which is arranged at the bottom of the supporting pedestal and sleeved at one end of the tension rod far away from the first anchoring nut, and a second anchoring nut which is sleeved at the outer side of the tension rod and positioned at one side of the anchoring base plate far away from the first anchoring nut.
In some of the possible embodiments of the present invention,
the first base plate is arranged between the force measuring assembly and the jack to be calibrated; the first backing plate is provided with a first through hole for the tension rod to pass through.
In some of the possible embodiments of the present invention,
the support pedestal is provided with a second base plate, the force measuring assembly is arranged on the second base plate, and the second base plate is provided with a second through hole for the tension rod to pass through.
In some of the possible embodiments of the present invention,
a limiting assembly for limiting the movement of the force measuring assembly is arranged on the second base plate;
the limiting assembly comprises a plurality of groups of transverse limiting angle steels which are arranged on the second backing plate and are matched with the second backing plate to be provided with the cavity;
the force measuring assembly is mounted within the mounting cavity.
In some of the possible embodiments of the present invention,
the support pedestal comprises a support frame and a third base plate which is arranged on the support frame and is used for installing a second base plate;
the third base plate is arranged on the second base plate and is provided with a third through hole for the tension rod to pass through.
In some of the possible embodiments of the present invention,
the force measuring assemblies are at least three groups and are uniformly arranged along the circumference of the second through hole, and the limiting assemblies and the force measuring assemblies are arranged in one-to-one correspondence.
In some of the possible embodiments of the present invention,
the force measuring component is a force measuring sensor.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the tensioning end base plate and the anchoring base plate are arranged at the two ends of the calibration jack, and the two ends of the tensioning rod penetrating through the force measuring assembly and the jack to be calibrated are connected through the corresponding first anchoring nut and second anchoring nut; the 2000 t-level punching jack calibration is realized under the self-balancing state of the internal force of the jack to be calibrated by the tension rod, the tension end base plate and the anchoring base plate, and the problem of difficult calibration of the large-tonnage punching jack is solved;
the invention has simple structure and strong practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the force measuring assembly, the spacing assembly, the second pad and the support pedestal according to the present invention;
FIG. 3 is a schematic three-dimensional structure of the present invention;
wherein: the device comprises a first anchoring nut, a 2-tension rod, a 3-tension base plate, a 4-jack to be calibrated, a 5-first base plate, a 6-force measuring assembly, 7-transverse limiting angle steel, a 8-second base plate, a 9-third base plate, a 10-anchoring base plate, a 11-second anchoring nut and a 12-supporting frame.
Detailed Description
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. Reference to "first," "second," and similar terms in this application does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of an association object, which means that there may be three relationships, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more. For example, a plurality of positioning posts refers to two or more positioning posts. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The present invention will be described in detail below.
As shown in fig. 1-3:
the jack calibration device is used for calibrating a jack 4 to be calibrated; the device comprises a supporting pedestal, a force measuring assembly 6 which is arranged on the supporting pedestal and used for installing a jack 4 to be calibrated, a tension rod 2, a first anchoring piece and a second anchoring piece, wherein one end of the tension rod 2 is connected with the supporting pedestal, the other end of the tension rod 2 penetrates through the jack 4 to be calibrated, the first anchoring piece is arranged on the jack 4 to be calibrated and sleeved on the outer side of the tension rod 2, and the second anchoring piece is arranged at the bottom of the supporting pedestal and sleeved on the outer side of the tension rod 2.
The jack 4 to be calibrated is a through jack, and a through hole is formed in the jack;
the tension rod 2 passes through two ends of the jack 4 to be calibrated and is respectively connected with a first anchoring piece and a second anchoring piece to form opposite tension; when the self-balancing type hydraulic self-balancing device is used, the jack to be calibrated 4 matched with the force measuring assembly 6 is started, and the problem that the large-tonnage through type jack is difficult to calibrate under the condition that a counter-force device is not needed in the jack to be calibrated 4 is solved.
The jack 4 to be calibrated is arranged on the force measuring assembly 6, the telescopic end of the jack is arranged on one side far away from the force measuring assembly 6, the first anchoring piece is arranged on the top surface of the telescopic end, one end of the tension rod 2 is limited by the second anchoring piece and then is positioned at the bottom of the supporting pedestal, and the other end of the tension rod 2 passes through the supporting pedestal and the jack 4 to be calibrated and then is connected with the second anchoring piece;
in some possible embodiments, in order to effectively realize the effective connection of the tension rod 2 and the first anchoring member, the jack 4 to be calibrated is uniformly stressed;
the first anchoring piece comprises a tensioning base plate 3 which is arranged at the telescopic end of the jack 4 to be calibrated and sleeved on the outer side of the tensioning rod 2, and a first anchoring nut 1 which is arranged on the tensioning base plate 3 and sleeved on the outer side of the tensioning rod 2.
The tensioning backing plate 3 is arranged on the telescopic end and is provided with a through hole coaxial with the through hole, and one side of the tensioning rod 2 passes through the through hole and is then in threaded connection with the first anchoring nut 1; the telescopic end of the jack 4 to be calibrated is stressed more uniformly due to the arrangement of the tensioning base plate 3.
In some of the possible embodiments of the present invention,
the second anchoring member has the same structure as the first anchoring member, and comprises an anchoring base plate 10 arranged at the bottom of the supporting pedestal and sleeved at one end of the tension rod 2 far away from the first anchoring nut 1, and a second anchoring nut 11 sleeved at the outer side of the tension rod 2 and positioned at one side of the anchoring base plate 10 far away from the first anchoring nut 1.
In some of the possible embodiments of the present invention,
the first base plate 5 is arranged between the force measuring assembly 6 and the jack 4 to be calibrated; the first pad 5 is provided with a first through hole through which the tension rod 2 passes. A second base plate 8 is arranged on the supporting pedestal, the force measuring assembly 6 is arranged on the second base plate 8, and a second through hole for the tension rod 2 to pass through is arranged on the second base plate 8.
The force measuring assemblies 6 are at least three groups and are uniformly arranged along the circumference of the second through hole, and the limiting assemblies and the force measuring assemblies 6 are arranged in one-to-one correspondence.
The first base plate 5 is positioned at the bottom of the jack 4 to be calibrated, and the force measuring assembly 6 is positioned between the first base plate 5 and the second base plate 8; the force measuring assemblies 6 of at least three groups are arranged along the circumferential direction of the tension rod 2;
the plurality of force transducers are arranged, so that the stress of the first base plate 5 and the jack 4 to be calibrated is more uniform, and the jack 4 to be calibrated and the first base plate 5 are prevented from being damaged by the stress in the loading process;
in some possible embodiments, in order to prevent lateral displacement of the force-measuring assembly 6 during loading of the jack 4 to be calibrated.
A limiting assembly for limiting the movement of the force measuring assembly 6 is arranged on the second base plate 8;
the limiting assembly comprises a plurality of groups of transverse limiting angle steels 7 which are arranged on the second base plate 8 and are matched with the second base plate 8 to be provided with a cavity; the force measuring assembly 6 is mounted in the mounting cavity.
Each group of installation cavities is uniformly arranged around the circumference of the second through hole.
In some of the possible embodiments of the present invention,
the support pedestal comprises a support frame 12 and a third backing plate 9 which is arranged on the support frame 12 and is used for installing a second backing plate 8;
the third pad 9 is mounted on the second pad 8 and is provided with a third through hole for the tension rod 2 to pass through.
The bottom of the second base plate 8 is provided with a third base plate 9 and an anchoring base plate 10, the third base plate 9 is positioned at the bottom of the second base plate 8, the third base plate 9 and the second base plate 8 are identical in size, the anchoring base plate 10 is positioned at the bottom of the third base plate 9, and an anchoring nut is positioned below the anchoring base plate 10, wherein the second base plate 8, the third base plate 9 and the anchoring base plate 10 mainly serve to increase the stress area of the tension rod 2 on force measurement sensing, so that local stress of the force measurement sensor is avoided, and a large force measurement error is caused.
The first base plate 5, the second base plate 8, the third base plate 9, the anchoring base plate 10 and the tensioning base plate 3 are square base plates, and through holes are formed in the base plates; the through holes are communicated in sequence and coaxially arranged;
the diameter of the through hole is D, the diameter of the tension rod 2 is D, and D-D is more than or equal to 2cm.
The force measuring assembly 6 in the present invention is a force measuring sensor, which is an existing product, and is directly purchased and assembled on the market, and the internal structure thereof is not described in detail here.
It should be noted that: according to the invention, the jack 4 to be calibrated is positioned at the upper part of the force measuring assembly 6, so that the jack 4 to be calibrated is convenient to mount and dismount, and when the jack is calibrated, the dead weight of the jack 4 to be calibrated, all the backing plates and all the anchor nuts should be deducted from the force measuring assembly 6 before the test.
Working principle: when the jack is calibrated, the telescopic end of the jack to be calibrated is lifted, and as the tensioning end base plate connected with the tensioning rod 2 is arranged on the telescopic end, the force measuring assembly 6 is positioned at the bottom of the jack to be calibrated, the lifting force of the jack 4 to be calibrated is transmitted to the force measuring assembly 6 through the tensioning rod 2, the relation between the oil pressure of the jack 4 to be calibrated and the force of the force measuring assembly 6 is established, and the jack 4 to be calibrated is calibrated.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (9)
1. The jack calibration device is used for calibrating a jack to be calibrated; the device is characterized by comprising a supporting pedestal, a force measuring assembly, a tension rod, a first anchoring piece and a second anchoring piece, wherein the force measuring assembly is arranged on the supporting pedestal and used for installing a jack to be calibrated, the tension rod is connected with the supporting pedestal, one end of the tension rod penetrates through the jack to be calibrated, the first anchoring piece is arranged on the jack to be calibrated and sleeved on the outer side of the tension rod, and the second anchoring piece is arranged at the bottom of the supporting pedestal and sleeved on the outer side of the tension rod.
2. A jack calibration device according to claim 1 wherein the first anchor comprises a tensioning pad mounted on the telescopic end of the jack to be calibrated and sleeved outside the tensioning rod, and a first anchor nut located on the tensioning pad and sleeved outside the tensioning rod.
3. The jack calibration device according to claim 2, wherein the second anchoring member has the same structure as the first anchoring member, and comprises an anchoring base plate installed at the bottom of the supporting pedestal and sleeved at one end of the tension rod far away from the first anchoring nut, and a second anchoring nut sleeved at the outer side of the tension rod and positioned at one side of the anchoring base plate far away from the first anchoring nut.
4. A jack calibration device according to claim 1 wherein a first backing plate is provided between the force measuring assembly and the jack to be calibrated; the first backing plate is provided with a first through hole for the tension rod to pass through.
5. A jack calibration device according to any one of claims 1 to 4 wherein a second backing plate is provided on the support base, the force measuring assembly being mounted on the second backing plate, the second backing plate being provided with a second through hole through which the tension rod passes.
6. A jack calibration device according to claim 5 wherein a limit assembly for limiting movement of the force measuring assembly is provided on the second backing plate;
the limiting assembly comprises a plurality of groups of transverse limiting angle steels which are arranged on the second backing plate and are matched with the second backing plate to be provided with the cavity;
the force measuring assembly is mounted within the mounting cavity.
7. A jack calibration device according to claim 5 wherein the support stand comprises a support frame, a third backing plate mounted on the support frame for mounting a second backing plate;
the third base plate is arranged on the second base plate and is provided with a third through hole for the tension rod to pass through.
8. The jack calibration device of claim 6, wherein the force measuring assemblies are at least three groups and are uniformly arranged along the circumference of the second through hole, and the limit assemblies are arranged in one-to-one correspondence with the force measuring assemblies.
9. A jack calibration device according to claim 8 wherein the force measuring component is a load cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311518863.3A CN117760759A (en) | 2023-11-13 | 2023-11-13 | Jack calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311518863.3A CN117760759A (en) | 2023-11-13 | 2023-11-13 | Jack calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117760759A true CN117760759A (en) | 2024-03-26 |
Family
ID=90322780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311518863.3A Pending CN117760759A (en) | 2023-11-13 | 2023-11-13 | Jack calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117760759A (en) |
-
2023
- 2023-11-13 CN CN202311518863.3A patent/CN117760759A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2008258193B2 (en) | Magnetostrictive measurement of tensile stress in foundations | |
| JP2014088689A (en) | Loading test method and loading test device for composite reinforcement ground | |
| CN102494839B (en) | Self-balancing large range torque calibrating device | |
| CN101260676A (en) | Pipe pile and reaction frame connecting method and single tube pile pressure-resistant static load test method | |
| CN102829990B (en) | Assembled two-tower cable-stayed bridge damage identification test model system | |
| CN105149965B (en) | A kind of crane total coating process | |
| CN212432397U (en) | Steel structure bridge steel arch rib vertical cable stress adjustment testing device | |
| CN212007614U (en) | Vertical effective prestress detection device based on reverse pulling method | |
| CN111076918B (en) | Device and method for testing bearing capacity of composite board structure | |
| CN204924892U (en) | Effect test device is adhered to in uniaxial extension effect protective coating down | |
| CN117760759A (en) | Jack calibration device | |
| KR100305107B1 (en) | an process of loading teste for loading structure use of transferable loading-apparatus | |
| CA3150000A1 (en) | Top loaded bidirectional testing system and method of using the same | |
| CN104729767B (en) | Device and method for testing distribution of shearing stress on box girder section | |
| CN110886184A (en) | Device and method for reducing accurate matching additional stress of wide steel box girder of cable-stayed bridge | |
| CN106989998B (en) | Loading device for detecting interlocking performance of concrete interlocking block and application method | |
| CN213239481U (en) | Precast beam static load test device | |
| CN212670670U (en) | Loading device and test equipment for foundation pile compression-resistant static load test | |
| CN201096572Y (en) | Prestressed cable tension tester | |
| CN219841911U (en) | Strain device based on weighing-free counterweight technology of test swivel bridge | |
| CN111894049A (en) | Loading device and test equipment for foundation pile compression-resistant static load test | |
| CN208984265U (en) | A kind of wheel spoke type sensor measuring Prestressed Concrete Bridges pre-stress rib stretching force | |
| CN220380864U (en) | Assembly universal rod piece axial compression test device | |
| CN221095231U (en) | Anchor pile method reaction frame with safety detection system | |
| CN103592140B (en) | Highs-speed motor train unit bogie parameter test board framework positioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |