CN212007777U

CN212007777U - Small-range jack verification auxiliary device

Info

Publication number: CN212007777U
Application number: CN202020934625.6U
Authority: CN
Inventors: 张毅; 赵博学; 杨玉杰; 杨志邦; 张贺; 李卿
Original assignee: Xi'an Ya Xing Civil Engineering Instrument Co ltd; SHAANXI INSTITUTE OF METROLOGY SCIENCE
Current assignee: Xi'an Ya Xing Civil Engineering Instrument Co ltd; SHAANXI INSTITUTE OF METROLOGY SCIENCE
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-11-24
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a small-range jack verification auxiliary device, which comprises a verification frame, wherein the verification frame is of a rectangular structure, positioning rods are symmetrically arranged at the front side and the rear side in the verification frame, a counterforce device is movably arranged on the inner side wall at the right side of the verification frame through a counterforce device positioning component, and a jack positioning device is also arranged on the bottom surface at the inner side of the verification frame to position the counterforce device; aiming at jacks of 50t or below, the horizontal type is adopted, so that the centering problem and the safety problem during vertical detection are solved; meanwhile, the auxiliary calibrating device solves the problem that the small-range jack is adaptive to various sizes in the calibrating process, and has the characteristics of simple and convenient operation, flexible calibrating space, adaptability to calibrating work of tensioning equipment with various models and shapes and high precision.

Description

Small-range jack verification auxiliary device

Technical Field

The utility model belongs to the technical field of mechanics metrological verification, concretely relates to small-scale range jack verification auxiliary device.

Background

The jack is widely applied to the industries such as traffic, railways, bridges, shipbuilding and the like, the accuracy of the magnitude of the jack is an important guarantee for the engineering quality of the industries, and the jack is wide in use and outstanding in advantages, the shape and the manufacture of the jack are continuously new, so that clear requirements are provided for follow-up changes of the metering department in jack verification work;

at present, most jack calibrating devices are customized or designed and processed by self, which is determined by the diversity of jack shapes, and the jack shapes used by a plurality of construction units are single, so that a self-owned calibrating framework is designed to be a jack for one or two shapes, the calibrating device of the jack customized by a metering department cannot be well adapted to the calibrating work of the jacks of various shapes, and according to the investigation of the metering departments in the province and the city, for small-range tensioning jacks, the problem that no independent device is used for calibrating and calibrating the jack still exists, and the large-range and small-range racks are mixed, so that the working efficiency is low, the problem of centering in the calibrating process is not well solved, accidents easily occur, and the reliability of calibrating data is not easily ensured.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a small-range jack verification auxiliary device, aiming at jacks of 50t and below, the horizontal type is adopted, so that the problems of centering and safety in vertical verification are solved; meanwhile, the auxiliary calibrating device solves the problem that the small-range jack is adaptive to various sizes in the calibrating process, and has the characteristics of simple and convenient operation, flexible calibrating space, adaptability to calibrating work of tensioning equipment with various models and shapes and high precision.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a small-scale jack examination auxiliary device, is including examining the frame, examines the rectangle structure of frame for being equipped with the inner chamber, examines before the frame inner chamber, back bilateral symmetry installs the locating lever, examines and be equipped with counterforce and U type groove on the inner chamber wall on the left and right side of frame respectively, the counterforce passes through counterforce ware locating component demountable installation on examining the inner chamber right side wall of frame, and the counterforce tip is provided with the inductor, still is provided with jack bottom locating component on examining frame inner chamber bottom surface, when examining and determine, fixes a position and fixed to the jack, still can dismantle on the inner chamber lateral wall of the one end of keeping away from counterforce locating component and be provided with locating component behind the jack.

Further, counterforce ware locating component include lead screw, horizontal location board, setting location screw and the fastener on examining and determine frame right side wall, both ends all are provided with the screw hole about horizontal location board, the screw hole and the location screw and the bolt cooperation of horizontal location board one end are used, the screw hole and the lead screw cooperation of the other end are used, the fastener setting is at the lower extreme of lead screw, the counterforce ware block is in the fastener.

Further, the fastener constitute by upper and lower two arc blade and connecting screw, connecting screw passes the screw that sets up connecting portion about the arc blade, with upper and lower two arc blade connection, the top welding of going up the arc blade have with lead screw cooperation threaded connection's screw post.

Furthermore, the jack bottom positioning assembly comprises a pair of slide rails arranged on the bottom plate of the verification frame, a fixing component and at least one sliding component, the fixing component and the sliding component have the same structure, the fixing component is fixedly connected to the slide rails, and the sliding component is connected with the slide rails in a sliding manner.

Further, the central positions of the sliding component and the fixed component are provided with trapezoidal grooves along the length direction, the positions on two sides of each trapezoidal groove are provided with sliding grooves, and the sliding grooves are clamped on the sliding rails.

Furthermore, locating component includes base and cushion behind the jack, the base sets up on examination frame inner chamber bottom surface, the cushion is cylindric iron plate.

Furthermore, both ends of the positioning rod are provided with threads and positioning holes, the left side wall and the right side wall of the verification frame are provided with positioning holes corresponding to the positions of both ends of the positioning rod, and positioning screws are installed in the positioning holes to limit the positions of the positioning rods.

The utility model has the advantages that: compared with the prior art, the utility model discloses an improvement part lies in:

1. the jack verification auxiliary device provided by the utility model adopts a horizontal form to verify the jack, well solves the centering problem and the safety problem during vertical verification, is convenient to operate during use, and has flexible verification space and convenient use;

2. meanwhile, the auxiliary calibrating device solves the problem that the small-range jack is suitable for various sizes in the calibrating process, and has the characteristics of simple and convenient operation, flexible calibrating space, adaptability to calibrating work of tensioning equipment with various models and shapes and high precision;

3. through comparison of the identification result of the device with the side face and the result of the standard dynamometer, the verification that the device can meet the verification of A-level and B-level tensioning equipment in the aspect of precision is verified, and the precision of a force value reaches 0.3%.

Drawings

Fig. 1 is the utility model discloses small-scale range jack verification auxiliary device schematic structure.

Fig. 2 is the utility model discloses small-scale range jack verification auxiliary device cross-sectional view.

Fig. 3 is the utility model discloses small-scale range jack verification auxiliary device fastener structure sketch.

Fig. 4 is the utility model discloses small-scale range jack verification auxiliary device examines the structure sketch map when examining the jack.

Fig. 5 is the utility model discloses the structural schematic diagram in small-scale range jack verification auxiliary device V-arrangement groove.

Wherein: 1. the device comprises a detection frame, 2. a positioning rod, 3. a positioning screw, 4. a sliding rail, 5. a fixing component, 51. a trapezoidal groove, 52. a sliding groove, 6. a counterforce device, 7. a sensor, 8. a U-shaped groove, 9. a horizontal positioning plate, 10. a screw rod, 11. a positioning screw hole, 12. a fastener, 121. a threaded column, 13. a sliding component, 14. a base and 15. a cushion block.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to the attached drawings 1-5, the small-range jack verification auxiliary device comprises a verification frame 1, wherein the verification frame 1 is of a rectangular structure provided with an inner cavity, positioning rods 2 are symmetrically arranged on the front side and the rear side of the inner cavity of the verification frame 1, and the positioning rods 2 are used for positioning and fixing the side walls on the front side, the rear side and the two sides of the verification frame 1 to enable the side walls to be on the same horizontal plane; the inner cavity walls of the left side and the right side of the checking frame 1 are respectively provided with an counterforce device 6 and a U-shaped groove 8, the counterforce device 6 is detachably mounted on the inner cavity side wall of the checking frame 1 through a counterforce positioning assembly, when the device is used, the counterforce device positioning assembly is used for fixing the position of the counterforce device 6, the end part of the counterforce device 6 is provided with an inductor 7, when the device is used, the inductor 7 is connected with a pressure gauge, and the pressure of the jack is displayed through the pressure gauge; meanwhile, when the jack is checked, the oil pipe of the jack can be discharged from the U-shaped groove 8, so that the position of the jack is horizontal when the jack is checked, and the accuracy of an identification result is ensured; the bottom surface of the inner cavity of the checking frame 1 is also provided with a jack bottom positioning component, the position of the jack is positioned and fixed during checking, the jack rear positioning component can be detachably arranged on the inner cavity side wall of one end far away from the counterforce positioning component, and the rear part of the jack is fixed during use.

The reaction device positioning assembly comprises a screw rod 10, a horizontal positioning plate 9, a positioning screw hole 11 and a fastener 12, wherein the positioning screw hole 11 and the fastener 12 are arranged on the right side wall of the detection frame 1, the horizontal positioning plate 9 is of a plate-shaped structure and mainly used for connecting the screw rod 10 with the positioning screw hole 11, threaded holes are formed in the left end and the right end of the horizontal positioning plate 9, the threaded hole in one end of the horizontal positioning plate 9 is matched with the positioning screw hole 11 and a bolt, the threaded hole in the other end of the horizontal positioning plate is matched with the screw rod 10, the reaction device 6 is movably arranged on the right side wall of the detection frame 1, the fastener 12 is connected to the lower end of;

the fastener 12 consists of an upper arc-shaped blade, a lower arc-shaped blade and a connecting screw rod, the connecting screw rod penetrates through screw holes formed in the left connecting part and the right connecting part of the arc-shaped blades to connect the upper arc-shaped blade and the lower arc-shaped blade through bolts, a threaded column 121 in threaded connection with the screw rod 10 in a matched mode is welded at the top end of the upper arc-shaped blade, when the screw rod 10 is used, the screw rod 10 is connected with the threaded column 121, and according to the size of the jack during detection, the position of the reaction device 6 is raised and lowered by rotating the screw rod 10, so that the reaction device 6, the inductor 7 and the jack are located on the same axis, and the jack can be;

the jack bottom positioning assembly comprises a pair of slide rails 4 arranged on the bottom plate of the detection frame 1, a fixed member 5 and at least one sliding member 13, the fixed member 5 and the sliding member 13 have the same structure, the fixed member 5 is fixedly connected to the slide rails 4, and the sliding member 13 is connected with the slide rails 4 in a sliding manner; the center positions of the sliding member 13 and the fixed member 5 are both provided with a trapezoidal groove 51 along the length direction, sliding grooves 52 are arranged at the two sides of the trapezoidal groove 51, the sliding grooves 52 are clamped on the sliding rail 4, when in use, an operator manually slides the position of the sliding member 13 to adjust the distance between the fixed member 5 and the sliding member 13, the jack is stably placed in the trapezoidal groove 51, the top end of the jack and the sensor 7 are on the same axis, and one or more sliding members 13 can be arranged according to the fixing requirement;

the jack rear positioning assembly comprises a base 14 and cushion blocks 15, the base 14 is arranged on the bottom surface of the inner cavity of the checking frame 1, the cushion blocks 15 are cylindrical iron blocks, when the jack rear positioning assembly is used, the cushion blocks 15 are clamped in the base 14, the number and the size of the cushion blocks 15 can be selected according to the size of the jack during the checking process, and the rear part of the jack is fixed, so that the front part, the rear part, the left part, the right part and the position of the jack in the inner cavity of the checking frame 1 are limited for checking;

the two ends of the positioning rod 2 are provided with threads and positioning holes, the left side wall and the right side wall of the verification frame 1 are provided with positioning holes corresponding to the two ends of the positioning rod 2, the positioning rod 2 is positioned by using positioning screws, and the left end and the right end of the positioning rod 2 are fixed by using screws.

The lower depth of the V-shaped groove 51 is 25 mm.

Jack size that small range jack verification auxiliary device can be suitable for is shown as table 1:

jack size that small measurement range jack verification auxiliary device can be suitable for

The utility model discloses a theory of operation and application method do:

1. installing a small-range jack verification auxiliary device, installing a counterforce device 6 on a verification frame 1 through a lead screw, paying attention to the fact that the center position of the counterforce device 6 is aligned in the installation process, and connecting an inductor 7 with a pressure gauge;

2. centering, a jack is placed on a fixing component 5 of a guide rail 4 on the bottom surface of an inner cavity of a verification frame 1 and a trapezoidal groove 51 of a sliding component 13, when the jack is placed, the rear end of the jack is placed on the limiting V-shaped groove 51 through adjustment, the distance between the fixing component 5 and the sliding component 13 is adjusted through manually sliding the position of the sliding component 13, the jack is stably placed on the trapezoidal groove 51, a proper amount of cushion blocks 15 are padded at the tail end of the jack according to the size of the jack, the tail end of the jack is tightly attached to the rear side wall of the verification frame 1, meanwhile, the front end of the jack is enabled to be propped against an inductor 7 through alignment, the jack is enabled to be aligned with the inductor 7, and the jack, the inductor 7 and a counterforce device 6 are on the same axis;

2. debugging, namely taking down an oil nozzle of the jack, connecting an oil port with a hydraulic pump, opening the hydraulic pump, slightly pressurizing the jack through the hydraulic pump, debugging, and aligning the jack for the second time again according to a debugging result so that the jack and the counter-force device are on the same axis to reduce the deviation force;

4. and (4) verification, recording the readings displayed by the hydraulic pressure meter and the hydraulic pump, counting the data results, and then performing calculation analysis.

Example 1: this embodiment utilizes the device is to 27t jack examination, its specific process as follows:

the method comprises the following steps: installing a small-range jack verification auxiliary device, installing a counterforce device 6 on a verification frame 1 through a lead screw, paying attention to the fact that the center position of the counterforce device 6 is aligned in the installation process, and connecting an inductor 7 with a pressure gauge;

step two: centering, a 27t jack is placed on a fixing member 5 of a guide rail 4 on the bottom surface of an inner cavity of a verification frame 1 and a trapezoidal groove 51 of a sliding member 13, when the jack is placed, the rear end of the jack is placed on the limiting V-shaped groove 51 through adjustment, the distance between the fixing member 5 and the sliding member 13 is adjusted through manually sliding the position of the sliding member 13, the jack is stably placed on the trapezoidal groove 51, a proper amount of cushion blocks 15 are padded at the tail end of the jack according to the size of the jack, the tail end of the jack is tightly attached to the rear side wall of the verification frame 1, meanwhile, the front end of the jack is enabled to be propped against an inductor 7 and aligned with the inductor 7 through alignment, and the jack is enabled to be on the same axis with the inductor 7 and a counter-force device 6;

step three: debugging, namely taking down an oil nozzle of the jack, connecting an oil port with a hydraulic pump, opening the hydraulic pump, slightly pressurizing the jack through the hydraulic pump, debugging, and aligning the jack for the second time again according to a debugging result so that the jack and the counter-force device are on the same axis to reduce the deviation force;

step four, verification, wherein the verification data of the 27t jack is shown in the table two:

table 2: jack verification data

By calculating the data of the table 2, the jack experimental data verified by the device is normal, which indicates that the working state of the device is normal;

step five, further, the 27t jack is still verified, a verified 0.3-level standard dynamometer is connected in series, and the following results can be seen through the comparison of the standard dynamometer and the data of the original sensors in the device according to the table 3:

table 3: comparison of the last two sets of data of the standard dynamometer in series

Through the data that sets up table 3 carry out the analysis, compare with standard dynamometer side face and result through this device appraisal result, prove that this device can satisfy the examination of A level, B level stretch-draw equipment in the aspect of the precision, the power value precision reaches 0.3%, proves the error of device is within 0.3%, consequently can reach the examination work of carrying out little jack that this device can be good.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a small-scale jack examination auxiliary device, a serial communication port, including examining frame (1), examine frame (1) for the rectangle structure that is equipped with the inner chamber, examine before frame (1) inner chamber, back bilateral symmetry installs locating lever (2), examine and be equipped with on the inner chamber wall on the left and right side of frame (1) counter-force ware (6) and U type groove (8) respectively, counter-force ware (6) through counter-force ware locating component demountable installation on examining the inner chamber right side wall of frame (1), counter-force ware (6) tip is provided with inductor (7), still is provided with jack bottom locating component on examining frame (1) inner chamber bottom surface, when examining, fixes a position and fixes the jack, still can dismantle on the inner chamber lateral wall of the one end of keeping away from counter-force ware locating component and be provided with locating component behind the jack.

2. The small-range jack calibration auxiliary device as claimed in claim 1, wherein the counterforce device positioning assembly comprises a screw rod (10), a horizontal positioning plate (9), a positioning screw hole (11) and a fastener (12), the positioning screw hole and the fastener are arranged on the right side wall of the calibration frame (1), threaded holes are formed in the left end and the right end of the horizontal positioning plate (9), the threaded hole in one end of the horizontal positioning plate (9) is matched with the positioning screw hole (11) and a bolt, the threaded hole in the other end of the horizontal positioning plate is matched with the screw rod (10), the fastener (12) is arranged at the lower end of the screw rod (10), and the counterforce device (6) is clamped in the fastener (12).

3. The small-range jack calibration auxiliary device as claimed in claim 2, wherein the fastener (12) is composed of an upper arc-shaped blade, a lower arc-shaped blade and a connecting screw rod, the connecting screw rod penetrates through screw holes formed in left and right connecting portions of the arc-shaped blades to connect the upper arc-shaped blade and the lower arc-shaped blade, and a threaded column (121) in threaded connection with the screw rod (10) in a matched mode is welded at the top end of the upper arc-shaped blade.

4. The small-range jack verification auxiliary device as claimed in claim 1, wherein the jack bottom positioning assembly comprises a pair of slide rails (4) arranged on the bottom plate of the verification frame (1), a fixed member (5) and at least one slide member (13), the fixed member (5) and the slide member (13) have the same structure, the fixed member (5) is fixedly connected to the slide rails (4), and the slide member (13) is slidably connected to the slide rails (4).

5. The small-range jack verification auxiliary device as claimed in claim 4, wherein the center positions of the sliding member and the fixing member are both provided with trapezoidal grooves (51) along the length direction, sliding grooves (52) are arranged at two sides of each trapezoidal groove (51), and the sliding grooves (52) are clamped on the sliding rails (4).

6. The small-range jack verification auxiliary device is characterized in that the jack rear positioning assembly comprises a base (14) and a cushion block (15), the base (14) is arranged on the bottom surface of an inner cavity of the verification frame (1), and the cushion block (15) is a cylindrical iron block.

7. The small-range jack verification auxiliary device as claimed in any one of claims 1-6, wherein both ends of the positioning rod (2) are provided with threads and positioning holes, the left and right side walls of the verification frame (1) are provided with positioning holes corresponding to both ends of the positioning rod (2), and the positioning holes are internally provided with positioning screws (3) for limiting the positions of the positioning rod (2).