CN212301161U

CN212301161U - High-strength bolt axial force and torque composite detection device

Info

Publication number: CN212301161U
Application number: CN202020824272.4U
Authority: CN
Inventors: 熊健
Original assignee: Chongqing Yongchuan Construction Engineering Testing Center Co ltd
Current assignee: Chongqing Yongchuan Construction Engineering Testing Center Co ltd
Priority date: 2020-05-16
Filing date: 2020-05-16
Publication date: 2021-01-05
Anticipated expiration: 2030-05-16

Abstract

The utility model relates to a high-strength bolt axial force and torque composite detection device, which comprises a machine table and a test mechanism, power unit, torque sensor and axial force sensor, torque sensor's power input end is connected in power unit's power take off end, torque sensor's output is connected in the bolt, test mechanism includes connecting piece and installed part and is used for adjusting the regulating part of the relative connecting piece distance of installed part, the connecting piece is upper shed box structure and its connection in the board that slides, the opening that is used for the centre gripping bolt is offered towards the lateral wall of torque sensor one side to the connecting piece, open-ended both sides border is echelonment structure and both sides border and is the symmetry setting, the ladder department of the different widths in opening both sides border can be located to different bolts card, the installed part slides and connects in the connecting piece, the opening has been seted up equally to the installed part, the. The utility model discloses can do the compound detection of axial force moment of torsion to the bolt of different diameters and length.

Description

High-strength bolt axial force and torque composite detection device

Technical Field

The utility model belongs to the technical field of torque detection device's technique and specifically relates to a compound detection device of high-strength bolt axial force moment of torsion is related to.

Background

The high-strength bolt is made of high-strength steel or needs to be applied with larger pretightening force, and is mainly used for connecting bridges, steel rails, high-pressure and ultrahigh-pressure equipment. In order to ensure the safety of connection, torque and axial force are two very important parameters when the high-strength bolt is used and designed. The traditional method for testing the torque is to manually twist a piece to be tested by using an electric torque wrench, so that the time and labor are wasted, and the efficiency is low.

In order to solve the technical problems, a chinese patent with publication number CN207662556U in the prior art discloses a high-strength bolt axial force and torque composite intelligent detector, which has the technical essential points that: the device comprises a clamping mechanism which is arranged on a frame and used for limiting the position of a bolt to be tested; the axial force sensor is matched with the screw head of the bolt to be tested through the pull head and is used for testing the axial force of the bolt to be tested; the transmission part is detachably matched with the screw rod of the bolt to be tested; the power source is assembled with the transmission part and drives the bolt to be tested to rotate through the transmission part; the torque sensor is matched with the transmission part and used for testing the torque of the bolt to be tested; and the operation display instrument is electrically connected with the axial force sensor and the torque sensor.

The above prior art solutions have the following drawbacks: when the bolt is detected according to different lengths and diameters, the axial force sensor and the sleeve can be interfered, and meanwhile, the partition plate and the adjusting plate are required to be replaced to adapt to the diameter of the bolt, so that the adaptability is relatively poor when the bolt is used, and the using effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a compound detection device of high strength bolt axial force moment of torsion, its can be to the bolt of different diameters and length do the compound detection of axial force moment of torsion.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a high-strength bolt axle power moment of torsion composite detection device, includes the board, is used for the test mechanism of clamping bolt, sets up in power unit, the torque sensor of board and is used for detecting the axle power sensor of bolt axle power, torque sensor's power input end is connected in power unit's power take off end, torque sensor's output is connected in the bolt, test mechanism is including being used for mounting bolt's connecting piece and installed part and being used for adjusting the regulating part of the relative connecting piece distance of installed part, the connecting piece is open-ended box structure and its connection in the board that slides, the opening that is used for the clamping bolt is offered towards the lateral wall of torque sensor one side to the connecting piece, open-ended both sides border is echelonment structure and both sides border and is the symmetry setting, and different bolts can block in the ladder department of the different widths, the opening has also been seted up to the installed part, the installed part is connected with and is used for doing the card of rotation locking to the bolt and establish the piece.

By adopting the technical scheme, when the testing mechanism is used, bolts with different diameters can be clamped in the testing mechanism through the openings, so that the bolts are clamped in the two openings, meanwhile, the bolts with different lengths can adjust the distance between the mounting part and the opening on the connecting part through the adjusting part to perform adaptive distance adjustment, so that the bolts with different lengths and diameters can be clamped in the testing mechanism, and then the clamping part is used for rotationally locking the screw heads or nuts of the bolts to perform detection tests; when the test is carried out, the power mechanism can drive the bolt to rotate through the torque sensor, the torque of the torsional bolt is detected, and at the moment, the axial force sensor detects the axial force of the bolt during the test so as to carry out composite detection.

The present invention may be further configured in a preferred embodiment as: the connecting piece is parallel to two lateral walls of installed part and is fixedly connected with a plurality of slide rails respectively, the slide rails are clamped in the clamping grooves on the lateral edges of the installed part.

Through adopting above-mentioned technical scheme, the slide rail can be to the guide of sliding of installed part, can do certain sharing to the load that the installed part bore when experimental simultaneously.

The present invention may be further configured in a preferred embodiment as: the card is established the piece and is platelike structure and its bayonet socket of seting up the spiral shell head or the nut of adaptation bolt, the installed part deviates from at least one slip table of torque sensor one side fixedly connected with, the slip table slides and blocks and locates in the spout on the card is established the piece.

Through adopting above-mentioned technical scheme, before the experiment, can make the card establish the piece and slide along the slip table to make the nut or the spiral shell head card of bolt locate in the bayonet, do the rotation locking with the nut or the spiral shell head to the bolt.

The present invention may be further configured in a preferred embodiment as: the adjusting part comprises a first lead screw, the first lead screw penetrates through the mounting part and is in threaded connection with the mounting part, and the first lead screw is rotatably connected with the connecting part.

Through adopting above-mentioned technical scheme, when the distance of the relative torque sensor of installed part is adjusted in order to adapt to the length of bolt in needs, only need rotate two lead screws one make the installed part along the axial of lead screw one slide can.

The present invention may be further configured in a preferred embodiment as: one end of the first screw rod, far away from the torque sensor, is fixedly connected with a driven gear, a driving gear meshed with the two driven gears is connected in the connecting piece in a rotating mode, the driving gear is fixedly connected with a rotating shaft penetrating out of the connecting piece, and the rotating directions of threads of the first screw rod are opposite.

Through adopting above-mentioned technical scheme, when using, need adjust the relative torque sensor's of installed part distance, in order to adapt to the length of bolt, only need to rotate the pivot and drive the driving gear and rotate, the pivoted driving gear passes through driven gear and drives two lead screw rotations, because a screw thread connection of lead screw is in installed part and two screw threads to opposite soon, can make the installed part orientation or keep away from torque sensor's direction and slide, in order to adapt to the length of bolt, can do certain support to the installed part simultaneously, bear the part and come from the load of installed part.

The present invention may be further configured in a preferred embodiment as: the lateral wall of installed part is seted up a plurality of butt holes that are on a parallel with its place face, and is a plurality of the butt hole divide into two sets ofly and two sets of setting respectively in two vertical lateral walls of installed part, the connecting piece is worn to establish and threaded connection has a plurality of lock poles, but the lock pole butt inserts and locates in the butt hole.

Through adopting above-mentioned technical scheme, because the installed part need bear certain along the axial power of bolt when the experiment is detected, make it insert through rotating the lock locking pole and establish and the butt is downthehole in the butt to be used for doing the support and bearing the load that the installed part bore when experimental to the installed part.

The present invention may be further configured in a preferred embodiment as: the connecting piece slides and connects in the upper surface of board, connecting piece threaded connection has lead screw two, lead screw two rotates to be connected in the board.

Through adopting above-mentioned technical scheme, the connecting piece slides and connects in the board, can be so that when doing the experiment to different bolts, the bolt can be relatively comparatively adaptation connect in torque sensor, simultaneously relatively more stable when in order to test, connecting piece threaded connection has lead screw two, and lead screw two rotates to be connected in the board to when making to need the connecting piece to slide, only need rotate lead screw two and can make the connecting piece slide along the axial of lead screw two.

The present invention may be further configured in a preferred embodiment as: the machine table is fixedly connected with a plurality of guide rails which are parallel to each other, and the guide rails are connected to the connecting piece in a sliding mode.

Through adopting above-mentioned technical scheme, the guide rail can do the guide when the connecting piece slides and do the support to the connecting piece simultaneously.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the device is used, bolts with different diameters can be clamped in the test mechanism through the openings, so that the bolts are clamped in the two openings, meanwhile, the bolts with different lengths can adjust the distance between the mounting part and the opening on the connecting part through the adjusting part to perform adaptive distance adjustment, so that the bolts with different lengths and diameters can be clamped in the test mechanism, and then the clamping part is used for rotationally locking the screw heads or nuts of the bolts to perform a detection test; during testing, the power mechanism can drive the bolt to rotate through the torque sensor and detect the torque of the twisted bolt, and the axial force sensor detects the axial force of the bolt during testing so as to perform composite detection;

2. before the experiment, can make the card establish the piece and slide along the slip table for the nut or the spiral shell head card of bolt are located in the bayonet, rotate the locking with can doing to the nut or the spiral shell head of bolt.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic diagram of a partial characteristic explosion structure of the present embodiment, which is mainly used for showing the structure of the testing mechanism.

FIG. 3 is a schematic cross-sectional view of a transmission member in this embodiment, which is mainly used to show the structure of the transmission member.

Fig. 4 is a partial schematic structural view of the present embodiment, which is mainly used for showing the structure of the clamping member.

In the figure, 1, a machine; 11. a guide rail; 12. an operation display; 2. a testing mechanism; 21. a connecting member; 211. an opening; 212. a slide rail; 213. a lock lever; 214. a second screw rod; 215. a connecting plate; 22. a mounting member; 221. a sliding table; 222. abutting against the hole; 23. an adjustment member; 231. a first lead screw; 232. a driven gear; 233. a driving gear; 234. a rotating shaft; 24. clamping the piece; 241. a bayonet; 3. a power mechanism; 31. a drive motor; 32. a coupling; 33. a transmission member; 331. a square hole; 332. a clamping hole; 4. a torque sensor; 5. an axial force sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a compound detection device of high-strength bolt axial force moment of torsion, including board 1, the test mechanism 2 that is used for the clamping bolt, set up in board 1's power unit 3, be used for detecting the bolt and bear torque data's torque sensor 4 and be used for detecting the axial force sensor 5 of bolt axial force. The power mechanism 3 comprises a driving motor 31 and two couplers 32, the two couplers 32 are respectively and fixedly connected to the input end and the output end of the torque sensor 4, and the coupler 32 at the input end of the torque sensor 4 is fixedly connected to the output shaft of the driving motor 31. Among them, the driving motor 31 may be a reduction motor or a torque motor with a larger torque output.

The machine table 1 is connected with an operation display 12 for displaying data, the operation display 12 is electrically connected with the axial force sensor 5 and the torque sensor 4, and signals sensed by the axial force sensor 5 and the torque sensor 4 are processed and displayed through the operation display 12.

Referring to fig. 2 and 3, the coupling 32 at the output end of the torque sensor 4 is connected to a transmission member 33 for fastening a bolt, and a square hole 331 with a square cross section and a fastening hole 332 with a regular hexagon cross section are respectively formed at both ends of the transmission member 33. The output end of the coupling 32 at the output end of the torque sensor 4 is adapted and inserted into the square hole 331, and the screw head end of the bolt is clamped in the clamping hole 332, so that the torque sensor 4 is connected to the bolt through the coupling 32 and the transmission part 33. So that when the driving motor 31 rotates, the torque sensor 4 can be driven to rotate by the coupler 32, and the bolt can be driven to rotate by the transmission member 33, so as to perform the test.

In order to enable different bolts to be tested, the bolts can be relatively adaptively connected to the torque sensor 4 through the transmission part 33 and the coupler 32, so that the connecting part 21 is connected to the machine table 1 in a sliding manner; meanwhile, in order to be relatively more stable during the test, the connecting piece 21 is in threaded connection with a second lead screw 214 parallel to the length direction of the bolt, and the second lead screw 214 is rotatably connected to the machine table 1. When the connecting piece 21 needs to slide, the connecting piece 21 can slide along the axial direction of the second screw rod 214 only by rotating the second screw rod 214.

The board 1 is through two guide rails 11 that are on a parallel with connecting piece 21 sliding direction of spiro union piece fixedly connected with, and the bottom of connecting piece 21 is along its sliding direction's both sides fixedly connected with connecting plate 215 respectively, and connecting plate 215 integrated into one piece is in the bottom of connecting piece 21, and connecting plate 215 is the level setting, and the connecting plate 215 has seted up the spout of adaptation guide rail 11, and two guide rails 11 block respectively to establish and slide and connect in the spout on two connecting plates 215. So that the guide rail 11 is slidably coupled to the coupling member 21 by the coupling plate 215.

The testing mechanism 2 comprises a connecting piece 21 and a mounting piece 22 for mounting bolts and an adjusting piece 23 for adjusting the mounting distance of the mounting piece 22 relative to the connecting piece 21.

Connecting piece 21 slides and connects in board 1, and connecting piece 21 is the box-packed structure of upper shed, and connecting piece 21 is inside to be formed with the cavity. The mounting member 22 is slidably connected in the connecting member 21, and the adjusting member 23 is disposed in the connecting member 21. Two vertical curb plates of connecting piece 21 are on a parallel with the length direction of bolt, connecting piece 21 offers the opening 211 that is used for the card to establish the bolt towards the lateral wall of torque sensor 4 one side, opening 211 runs through opening 211 place lateral wall along the thickness direction of its place connecting piece 21 lateral wall, opening 211 is open structure, the both sides border of opening 211 is the echelonment structure, so that opening 211 top-down's width reduces in proper order and it is the main aspects opening, so that the bolt of different diameters can block the ladder border department of locating the different width of opening 211.

Referring to fig. 2 and 4, the mounting member 22 is a plate-shaped structure and is also provided with an opening 211, and the mounting member 22 is perpendicular to the sliding direction of the connecting member 21. The mounting part 22 is connected with a snap-on part 24 for rotational locking of the bolt.

When the device is used, bolts with different diameters can be clamped in the testing mechanism 2 through the opening 211, meanwhile, the distance between the mounting piece 22 and the opening on the connecting piece 21 can be adjusted through the adjusting piece 23 for adaptive distance adjustment, so that the bolts with different lengths and diameters can be clamped in the testing mechanism 2, and then the screw heads or nuts of the bolts are rotationally locked through the clamping piece 24, so that a detection test can be carried out; during the test, the power mechanism 3 drives the bolt to rotate through the torque sensor 4, simultaneously detects the torque of the twisted bolt, and at the moment, the axial force sensor 5 detects the axial force of the bolt during the test so as to perform composite detection.

Connecting piece 21 is on a parallel with two lateral walls of installed part 22 and is a plurality of slide rails 212 of fixedly connected with respectively, and slide rail 212 is located the inner chamber of connecting piece 21, and slide rail 212 is the level setting and its slip direction along installed part 22 extends, and the draw-in groove of a plurality of adaptation slide rails 212 is seted up respectively along two vertical sides of installed part 22, and the draw-in groove on installed part 22 side border is located to a plurality of slide rail 212 cards. For guiding the sliding of the mounting member 22 and for supporting and restricting the tilting of the mounting member 22.

Referring to fig. 2 and 4, the fastening member 24 is a plate-shaped structure and is provided with a bayonet 241 adapted to a screw head or a nut of a bolt, the bayonet 241 is a lower opening structure, and an upper edge of the bayonet 241 is V-shaped and is opened at a lower side so that the bayonet 241 can fasten the screw head or the nut of the bolt. The installed part 22 deviates from the slip table 221 of a plurality of vertical settings of torque sensor 4 one side fixedly connected with, and the card is established 24 and is offered the spout of a plurality of adaptation slip tables 221 towards installed part 22 one side face, and in the spout was located in the vertical extension of slip table 221 and the card, the spout was the upper shed in order to make the card establish 24 can roll-off installed part 22. When using, the piece 24 is established to the card can slide through the length direction along slip table 221 to locate the spiral shell head or the nut card of bolt in bayonet 241, simultaneously because a plurality of spouts on the piece 24 are established to the card respectively to be equipped with slip table 221, thereby can be to establishing the piece 24 to the card and rotate the locking, thereby make the nut or the spiral shell head of the bolt of locating bayonet 241 can not rotate by the card, in order to carry out the experiment.

Referring to fig. 1 and 2, the adjusting member 23 includes two first lead screws 231, the two first lead screws 231 are both connected to the mounting member 22 through threads, the first lead screws 231 penetrate through the mounting member 22, and the axial direction of the first lead screws 231 is parallel to the sliding direction of the mounting member 22; one end of the first lead screw 231, which is far away from the torque sensor 4, is fixedly connected with a driven gear 232, the driven gear 232 and the first lead screw 231 share the same central axis, the connecting piece 21 is rotatably connected with a driving gear 233 which is meshed with the two driven gears 232 at the same time, the driving gear 233 is fixedly connected with a rotating shaft 234 which shares the same central axis with the driving gear 233, and the rotating shaft 234 penetrates out of the connecting piece 21 and extends in the direction far away from the torque sensor 4 to assist in rotating the driving gear 233. Wherein, the screw directions of the first lead screw 231 are opposite.

When using, the distance of the relative torque sensor 4 of installed part 22 needs to be adjusted, in order to adapt to the length of bolt, only need to rotate pivot 234 and drive driving gear 233 and rotate, pivoted driving gear 233 drives two lead screws 231 through driven gear 232 and rotates, because the screw thread of lead screw 231 threaded connection in installed part 22 and two lead screws 231 revolves to opposite, can make installed part 22 towards or keep away from the direction of torque sensor 4 and slide, in order to adapt to the length of bolt, can do certain support to installed part 22 simultaneously, bear the part and come from the load of installed part 22.

Referring to fig. 1 and 2, because the installation part 22 needs to bear a certain force along the axial direction of the bolt during experimental detection, a plurality of vertically distributed abutting holes 222 are respectively formed in two vertical side walls of the installation part 22, and the abutting holes 222 are perpendicular to the first lead screw 231 and the abutting holes 222 are horizontally arranged. The connecting member 21 is disposed through and screwed with a plurality of locking rods 213 having the same central axis as the plurality of abutting holes 222, and the locking rods 213 can be inserted into and abutted against the abutting holes 222 to support the mounting member 22 and bear the load borne by the mounting member 22 during the test.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high-strength bolt axial force moment of torsion composite detection device, includes board (1), is used for the test mechanism (2) of clamping bolt, sets up in power unit (3), torque sensor (4) of board (1) and axial force sensor (5) that are used for detecting bolt axial force, the power input end of torque sensor (4) is connected in the power take off end of power unit (3), the output of torque sensor (4) is connected in the bolt, its characterized in that: test mechanism (2) including connecting piece (21) and installed part (22) that are used for construction bolt and be used for adjusting regulating part (23) of installed part (22) relative connecting piece (21) distance, open-ended box structure and its slip are connected in board (1) in connecting piece (21) are presented, opening (211) that are used for the centre gripping bolt are offered towards the lateral wall of torque sensor (4) one side to connecting piece (21), the both sides border of opening (211) is echelonment structure and both sides border and is the symmetry setting, and the ladder department of the different width in opening (211) both sides border can be located to different bolts card, installed part (22) are slided and are connected in connecting piece (21), opening (211) have been seted up equally in installed part (22), installed part (22) are connected with and are used for doing the card that rotates the locking to the bolt and establish piece (24).

2. The high-strength bolt axial force and torque composite detection device of claim 1, characterized in that: the connecting piece (21) is parallel to two side walls of the mounting piece (22) and is fixedly connected with a plurality of sliding rails (212) respectively, and the sliding rails (212) are clamped in clamping grooves in the side edges of the mounting piece (22).

3. The high-strength bolt axial force and torque composite detection device of claim 1, characterized in that: piece (24) are established to the card and are platelike structure and its bayonet socket (241) of seting up the spiral shell head or the nut of adaptation bolt, installed part (22) deviate from torque sensor (4) one side fixedly connected with at least one slip table (221), slip table (221) slide and the card is located in the spout of card on establishing piece (24).

4. The high-strength bolt axial force and torque composite detection device of claim 1, characterized in that: the adjusting part (23) comprises two first lead screws (231), the first lead screws (231) penetrate through and are in threaded connection with the mounting part (22), and the first lead screws (231) are rotatably connected with the connecting part (21).

5. The high-strength bolt axial force and torque composite detection device as claimed in claim 4, wherein: one end, far away from the torque sensor (4), of the first lead screw (231) is fixedly connected with a driven gear (232), a driving gear (233) meshed with the two driven gears (232) is connected in the connecting piece (21) in a rotating mode, the driving gear (233) is fixedly connected with a rotating shaft (234) penetrating out of the connecting piece (21), and the rotating directions of threads of the first lead screw (231) are opposite.

6. The high-strength bolt axial force and torque composite detection device of claim 1, characterized in that: the side wall of the mounting part (22) is provided with a plurality of abutting holes (222) parallel to the plate surface where the mounting part is located, the abutting holes (222) are divided into two groups, the two groups are respectively arranged on two vertical side walls of the mounting part (22), the connecting part (21) penetrates through and is in threaded connection with a plurality of locking rods (213), and the locking rods (213) can be abutted and inserted into the abutting holes (222).

7. The high-strength bolt axial force and torque composite detection device of claim 1, characterized in that: connecting piece (21) slide and connect in the upper surface of board (1), connecting piece (21) threaded connection has lead screw two (214), lead screw two (214) rotate to be connected in board (1).

8. The high-strength bolt axial force and torque composite detection device of claim 7, characterized in that: the machine table (1) is fixedly connected with a plurality of guide rails (11) which are parallel to each other, and the guide rails (11) are connected to the connecting piece (21) in a sliding mode.