CN216449353U - Torsional shear type bolt fastening device, torsional shear wrench and axial force detection equipment - Google Patents

Abstract

The application discloses turn round and cut type bolt-up device, turn round and cut spanner and axle power check out test set relates to the technical field that bolted connection pair fastening axle power detected, includes one kind and turns round and cut type bolt-up device wherein: comprises a fixing ring and a fixing rod; the fixing rods penetrate through the outer side wall of the fixing ring and are connected with the fixing ring in a sliding manner; one end of the fixed rod, which is positioned in the space enclosed by the fixed ring, faces the center of the fixed ring; the fixed ring is provided with a contraction device which drives the fixed rod to slide simultaneously. This application has and carries out the adaptation to not unidimensional nut, improves the effect of high strength torsional shear type bolt axial force detection efficiency.

Description

Torsional shear type bolt fastening device, torsional shear wrench and axial force detection equipment

Technical Field

The application relates to the technical field of bolted connection pair fastening axial force detection, in particular to a torsional shear type bolt fastening device and axial force detection equipment.

Background

Turn round the end of cutting type high strength bolt from taking the plum blossom head, the use of this bolt need be used the wrench shear spanner that corresponds, twist the nut back on the bolt, will turn round and cut the spanner cover at the bolt end, the plum blossom head of bolt is embedded into the plum blossom inslot of turning round and cutting the spanner inner tube, urceolus and nut cooperate, twist the nut through the internal tube of turning round and the antiport of urceolus of cutting the spanner and twist the nut and twist off the plum blossom head of bolt, accomplish the installation of cutting type high strength bolt soon.

As the quincuncial head needs to be twisted off in the using process of the torsional shear type high-strength bolt, the produced torsional shear type high-strength bolt needs to be subjected to an axial force detection test to detect the axial force required for twisting off the quincuncial head, and whether the produced bolt meets the specification or not is judged.

Carry out above-mentioned axial force and detect generally to use and turn round shearing type high strength bolt axial force check out test set, axial force check out test set is generally including being used for fixing bolt and letting the nut support tight fixing device with it, turn round the scissors spanner setting in fixing device one end, fix on fixing device at the bolt, and with the nut cover back on the bolt, remove and turn round the scissors spanner, make the plum blossom head be located the inner tube, the urceolus cup joints the nut, twist off the plum blossom head and pass through sensor record numerical value through turning round the scissors spanner.

In the whole process, the intervention flow is considered to be more. When the bolts with different sizes are tested, the inner barrel of the torsional shear wrench needs to be adapted and replaced; when the nut to unidimensional carries out the experiment, need carry out the adaptation to the urceolus of wrench shear spanner and change. And whether the quincuncial head is twisted off needs to be manually judged, after the quincuncial head is twisted off, the outer barrel of the twisting and shearing wrench needs to be manually rotated reversely to detach the nut, and the twisted off quincuncial head can be positioned in the inner barrel and needs to be manually taken out. Overall, the detection efficiency can be greatly reduced, wherein the replacement of the outer barrel of the twist-shear wrench is more time-consuming.

SUMMERY OF THE UTILITY MODEL

Because the manual operation process is more in the torsional shear type high-strength bolt axial force detection process, and the outer barrel efficiency of replacing the torsional shear wrench is lower, the torsional shear type high-strength bolt axial force detection efficiency is low. In order to improve the above-mentioned defect, the present application provides a torsional shear type bolt fastening device and an axial force detection apparatus.

The application provides a turn round and cut type bolt-up device and axle power check out test set includes following technical scheme:

the utility model provides a torsional shear type bolt-up device which characterized in that: comprises a fixing ring and a fixing rod;

the fixing rods are multiple, and the outer side wall of the fixing ring penetrates through and is connected with the fixing ring in a sliding manner;

one end of the fixed rod, which is positioned in the space enclosed by the fixed ring, faces the center of the fixed ring;

the fixed ring is provided with a contraction device which drives the fixed rod to slide simultaneously.

Through adopting above-mentioned technical scheme, fixing device removes the position back that corresponds the nut, and constriction device drives the dead lever and together inwards slides, makes the dead lever support the nut outer wall tightly, and effectual not unidimensional nut fastens, has improved the efficiency of fastening the nut.

Optionally, the fixing rods are evenly distributed circumferentially around the center of the fixing ring.

Through adopting above-mentioned technical scheme, the effectual fastening effect to the nut that has improved of circumference equipartition of dead lever makes the pressure that the dead lever received carry out comparatively even distribution, has improved holistic life and the result of use of fastener.

Optionally, an included angle formed between two adjacent fixing rods is in a range of 3 degrees to 65 degrees.

Through adopting above-mentioned technical scheme, the interval of dead lever has carried out the restriction to the quantity of dead lever, fixes the nut through six fixed poles at least, has improved the effect of fastening the nut.

A torsional shear wrench applying a torsional shear type bolt fastening device comprises the torsional shear type bolt fastening device.

Through adopting above-mentioned technical scheme, install fastener on turning round and cutting the spanner, the effectual urceolus that has reduced has improved detection efficiency to the change of unidimensional nut not.

Optionally, the device comprises an outer cylinder and an inner cylinder;

the outer cylinder wraps the inner cylinder, and the outer cylinder and the inner cylinder are coaxially arranged;

the torsional shear wrench drives the outer cylinder and the inner cylinder to coaxially rotate reversely;

the inner cylinder is provided with a quincuncial groove for fixing the quincuncial head of the bolt;

the fixed ring is installed on the outer barrel, and the central axis of the fixed ring is collinear with the central axis of the outer barrel.

Through adopting above-mentioned technical scheme, solid fixed ring installs on outer section of thick bamboo, and sets up with the central axis collineation of urceolus, and the dead lever pushes up the nut after tight, and the urceolus drives solid fixed ring and rotates together, and then drives the nut and rotate, has improved the efficiency that bolt shaft power detected.

Optionally, a spring thimble is arranged in the quincuncial groove, and the bolt quincuncial head in the quincuncial groove can be ejected out when the spring thimble is in a natural state.

Through adopting above-mentioned technical scheme, after the bolt plum blossom head was twisted off, the plum blossom head still inlayed in the plum blossom groove, after the bolt separates with the wrench for wrench cutting, the thimble was ejecting with the plum blossom head, accomplishes the automatic dismantlement of plum blossom head, has reduced manual operation, has further improved the efficiency that bolt axial force detected.

Optionally, the twist shear wrench is at least provided with a rotation speed sensor for monitoring the rotation speed of the inner barrel.

By adopting the technical scheme, the rotating speed of the inner barrel is monitored by the rotating speed sensor, when the actual rotating speed is equal to the rated rotating speed, the quincuncial head is unscrewed, the rotation of the inner barrel and the outer barrel is stopped, the state monitoring of the quincuncial head unscrewing is realized, and the test data are more accurate.

Optionally, the fixing rod is provided with a pressure sensor for measuring the pressure borne by the fixing rod.

Through adopting above-mentioned technical scheme, pressure sensor can monitor the pressure that the dead lever received, and then judges the tight state in nut top, makes the process that bolt axial force detected more automatic, has reduced manual operation, has improved the efficiency that bolt axial force detected.

Optionally, the retraction device comprises a power source and a retraction cylinder;

the contraction cylinder is in a horn shape;

the outer end of the fixed rod is abutted against the inner wall of the shrinkage cylinder;

the power source is arranged on the torsional shear wrench and used for driving the shrinkage cylinder to move.

Through adopting above-mentioned technical scheme, the power supply drives a shrink section of thick bamboo and removes, and a shrink section of thick bamboo makes the dead lever together slide through the inner wall of convergent, and then tightly fixes the nut top.

An axial force detection device with a torsional shear type bolt fastening device comprises the torsional shear wrench.

Through adopting above-mentioned technical scheme, have fastener's turn round and cut spanner and use the back on the axial force check out test set, saved the step of changing the urceolus, realized the automatic monitoring of each state through setting up of sensor simultaneously, reduced the process of artificial judgement operation, make bolt axial force detect more automatic, improved the efficiency that bolt axial force detected.

In summary, the present application includes at least one of the following beneficial technical effects:

the fixing ring provides a sliding track and a sliding space for the fixing rod, and the fixing rod is driven to contract under the action of the contraction device, so that nuts with different sizes can be fastened, on the premise of ensuring the fastening of the nuts, the process of replacing corresponding sleeves when the nuts with different sizes are fastened is reduced, and the efficiency of bolt axial force detection is improved;

the rotation speed sensor is arranged to effectively monitor the rotation speed of the inner barrel, when the actual rotation speed of the inner barrel is the same as the rated rotation speed, the quincuncial head is unscrewed, the detection of the bolt axial force is stopped, the experimental data is more accurate, the disassembling operation of manually judging the quincuncial head unscrewing state is reduced, the whole process is more automatic, and the bolt axial force detection efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present application;

fig. 2 is a partial cross-sectional view showing a torque wrench according to embodiment 1 of the present application;

fig. 3 is an enlarged view showing a fastening device of a portion a in fig. 2 according to embodiment 1 of the present application;

fig. 4 is a partial cross-sectional view showing a torque shear wrench according to embodiment 2 of the present application;

fig. 5 is an enlarged view showing a return spring of a portion B in fig. 4 according to embodiment 2 of the present application.

In the figure, 1, a fixing device; 11. a plugboard; 12. mounting grooves; 13. inserting grooves; 2. a fastening device; 21. a fixing ring; 22. fixing the rod; 221. a pressure sensor; 222. a baffle plate; 23. a return spring; 3. a torsional shear wrench; 31. an inner barrel; 311. a plum blossom groove; 312. a spring thimble; 313. a rotational speed sensor; 32. an outer cylinder; 4. a retractor; 41. a power source; 42. and (5) shrinking the cylinder.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses torsional shear type bolt fastening device and axial force detection equipment.

Example 1;

referring to fig. 1 and 2, a torsional shear type bolt fastening device and an axial force detecting apparatus includes a fixing device 1, a torsional shear wrench 3, and a fastening device 2. The fixing device 1 is used for fastening a high-strength torsional shear type bolt (hereinafter referred to as a bolt), and the torsional shear wrench 3 is arranged on a base of the fixing device 1 in a sliding manner along the axis direction of the bolt fixed by the fixing device 1 and used for detecting the axial force of the bolt. The fastening device 2 is arranged on the torsional shear wrench 3 and is used for fastening nuts of different sizes and driving the nuts to rotate.

After the bolt is fixed on the fixing device 1, the torsional shear wrench 3 is pushed, the bolt head of the bolt is located at the corresponding position of the torsional shear wrench 3, the axial force of the bolt is detected through the torsional shear wrench 3 and the fastening device 2 together, nuts of different sizes are fastened through the fastening device 2, the previous step of replacing sleeves is reduced, and the efficiency of bolt axial force detection is improved.

Referring to fig. 2, the fixing device 1 further includes a plugging plate 11, one side of the fixing device 1 facing the wrench 3 is provided with an installation groove 12 with an upper opening, the opposite side wall of the installation groove 12 is vertically provided with a plugging groove 13 with an upper opening, and the plugging plate 11 is plugged into the two plugging grooves 13 at the same time. The hole that supplies the bolt level to pass is seted up to plugboard 11 intermediate position, and bolt head portion is located mounting groove 12, and the plum blossom head of bolt passes behind plugboard 11 and is located mounting groove 12 outside and towards torsional shear spanner 3 setting. The part of the plugboard 11 except the part inserted into the mounting groove 12 is a truncated cone-shaped shell gradually reduced towards the torsional shear wrench 3, and a hole of the plugboard 11 for a bolt to pass through is positioned in the middle of the end face of the truncated cone.

Referring to fig. 2, an inner cylinder 31 and an outer cylinder 32 are rotatably connected to one end of the torque wrench 3 facing the mounting groove 12, and the outer cylinder 32 surrounds the inner cylinder 31 and coaxially reverses the inner cylinder 31. The central axis of the inner cylinder 31 is collinear with the central axis of the bolt installed on the plugboard 11, and the end surface of the inner cylinder 31 facing the bolt is provided with a quincuncial groove 311 for the quincuncial head of the bolt to extend into. A spring thimble 312 is disposed at the middle position of the inner wall of the quincunx groove 311 facing the opening position thereof, and the spring thimble 312 is located at a position close to the opening of the quincunx groove 311 when in a natural state. The fastening device 2 is provided on the outer cylinder 32 for fastening nuts of different sizes. A rotation speed sensor 313 for monitoring the rotation speed of the inner cylinder 31 is provided in the torque wrench 3.

The bolt is inserted into the hole of the insertion plate 11, the nut is pre-installed, the insertion plate 11 is inserted into the corresponding insertion groove 13, the insertion plate 11 and the fixing device 1 are fixed, the torsional shear wrench 3 is moved towards the insertion plate 11, the quincunx head of the bolt is located in the quincunx groove 311, the spring ejector pin 312 is compressed, the nut of the bolt is fastened through the fastening device 2, the torsional shear wrench 3 enables the inner cylinder 31 and the outer cylinder 32 to rotate reversely, and the quincunx head of the bolt is screwed off by continuing to rotate after the nut is screwed down. The nuts with different sizes are fastened through the fastening device 2, the step of replacing the sleeve matched with the nut is omitted, and the efficiency of detecting the axial force of the bolt is improved.

When the measured rotation speed of the rotation speed sensor 313 is the same as the rated rotation speed, it indicates that the quincunx head of the bolt is twisted off, and after the data is automatically recorded, the outer cylinder 32 rotates in the opposite direction to the previous rotation direction, and the power is doubled, so that the nut and the bolt are separated. In the process of separating the nut from the bolt, the twisted-off quincuncial head is ejected out of the quincuncial groove 311 by the spring thimble 312 and falls off, so that the process of manually judging the state of twisting-off of the quincuncial head of the bolt is reduced, the process of manually taking out the quincuncial head remained in the quincuncial groove 311 is also reduced, the state is identified by the rotation speed sensor 313, the automation degree is improved, and the efficiency of detecting the axial force of the bolt is improved.

Referring to fig. 2 and 3, the fastening device 2 includes a fixing ring 21 and a fixing rod 22, the end face of the fixing ring 21 is welded and fixed to the end face of the outer cylinder 32 departing from the torsional shear wrench 3, the fixing rod 22 is multiple, the fixing rod 22 sequentially penetrates through the circumferential outer wall and the circumferential inner wall of the fixing ring 21 and is connected with the fixing ring 21 in a sliding manner, and the distance between adjacent fixing rods 22 is equal and is all arranged towards the center of the fixing ring 21. The included angle formed by the adjacent fixing rods 22 is 3-65 degrees, namely at least 6 fixing rods 22 are arranged on the fixing ring 21. The end of the fixing rod 22 away from the center of the fixing ring 21 is fixedly connected with a pressure sensor 221, and the torque shear wrench 3 is further provided with a contraction device 4 which enables the fixing rod 22 to simultaneously slide inwards.

Make dead lever 22 with the internal slip of solid fixed ring 21 of following through constriction device 4, and then push up nut circumference outer wall tightly, realize the fastening to not unidimensional nut, improved the efficiency of fixing not unidimensional nut. The distribution of dead lever 22 and the restriction requirement of contained angle have guaranteed that all there is dead lever 22 to support tightly with it on every terminal surface of nut circumference outer wall, have improved effect and the fastness to the nut fastening. The state of pressing the nut is judged through the pressure sensor 221 on the fixing rod 22, so that the equipment is more automatic, and the efficiency of detecting the axial force of the bolt is improved.

Referring to fig. 2 and 3, the retracting device 4 includes a power source 41 and a retracting cylinder 42. The power source 41 is a hydraulic cylinder, a pneumatic cylinder, or the like having a pushing and retracting capability, and in this embodiment, is a hydraulic cylinder. The power sources 41 are disposed on the side wall of the torque wrench facing the socket plate 11, and the power sources 41 are uniformly distributed circumferentially around the central axis of the inner barrel 31. The power source 41 extends and contracts in a direction parallel to the central axis of the inner cylinder 31. The shrinkage cylinder 42 is a horn-shaped shell gradually expanded towards the mounting groove 12, the smaller diameter end of the shrinkage cylinder 42 is fixedly connected with the end face of the piston rod of the power source 41, the central axis of the shrinkage cylinder 42 is collinear with the central axis of the inner cylinder 31, the shrinkage cylinder 42 surrounds the fixing rod 22, and one end, away from the fixing rod 22, of the pressure sensor 221 is abutted to the inner wall of the shrinkage cylinder 42.

The piston rod of the power source 41 moves together to drive the contraction barrel 42 to move towards the direction far away from the torsional shear wrench 3, the contraction barrel 42 enables the fixing rod 22 to slide towards the center of the fixing ring 21 at the same equal distance through the inclined surface of the inner wall, and the fixing rod 22 is pressed tightly after being abutted against the nut, so that the nut is fixed. The tightening state of the nut is determined by the pressure sensor 221, and when the pressure measured by the pressure sensor 221 reaches a predetermined value, the power source 41 stops moving, and the fixing rod 22 is held in a state of tightening the nut. The function of simultaneously sliding the fixing rods 22 inwards at equal intervals is realized through the shrinkage barrel 42, and the bolt axial force detection efficiency is improved.

The implementation principle of the embodiment 1 of the application is as follows: after fixing the bolt on plugboard 11 and inserting plugboard 11 into inserting groove 13, make the bolt remove to inner tube 31, the plum blossom head is embedded into plum blossom groove 311, and power supply 41 drives a shrink section of thick bamboo 42 and removes, drives dead lever 22 through the removal of a shrink section of thick bamboo 42 and inwards slides, and then tightly fixes the nut top, and after the numerical value that pressure sensor 221 monitored reaches, power supply 41 stopped, and dead lever 22 locks the state with the nut fastening. The torsional shear wrench 3 drives the inner cylinder 31 and the outer cylinder 32 to rotate in opposite directions, and the nut is screwed down and then continues to rotate until the quincuncial head of the bolt is screwed off. At this time, the actual rotating speed of the inner cylinder 31 monitored by the rotating speed sensor 313 is equal to the rated rotating speed, the quincunx head of the bolt is judged to be broken, the outer cylinder 32 is enabled to rotate reversely, the nut is disassembled, and in the bolt keeping-away process, the quincunx head is ejected out of the quincunx groove 311 by the spring ejector pin 312, so that the axial force detection of the bolt is more automatic, and the axial force detection efficiency of the bolt is improved.

Example 2;

the same portions of this example as those of example 1 are referred to example 1.

Referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that: the part of dead lever 22 between solid fixed ring 21 and shrink section of thick bamboo 42 sets firmly baffle 222, and the part cover that dead lever 22 is located between baffle 222 and solid fixed ring 21 is equipped with reset spring 23, and reset spring 23's one end and baffle 222 fixed connection, the other end and solid fixed ring 21 fixed connection, and when reset spring 23 was in the natural state, dead lever 22 still slided with solid fixed ring 21 butt.

The implementation principle of embodiment 2 of the present application is different from that of embodiment 1 in that: the reset spring 23 enables the fixing rod 22 to always push the pressure sensor 221 tightly against the inner wall of the shrinkage cylinder 42, and in the process that the power source 41 drives the shrinkage cylinder 42 to reset, the fixing rod 22 can also realize automatic reset, so that the use convenience of the fixing rod 22 is improved, and the fixing effect of the fixing rod 22 on the nut is improved.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a torsional shear type bolt-up device which characterized in that: comprises a fixed ring (21) and a fixed rod (22);

the fixing rods (22) are multiple, and the outer side wall of the fixing ring (21) penetrates through and is connected with the fixing ring (21) in a sliding manner;

one end of the fixing rod (22) located in the space enclosed by the fixing ring (21) faces the center of the fixing ring (21);

the fixing ring (21) is provided with a contraction device (4) which drives the fixing rod (22) to slide simultaneously.

2. The torsional shear type bolt fastening device according to claim 1, characterized in that: the fixing rods (22) are circumferentially and uniformly distributed by taking the center of the fixing ring (21) as the center.

3. The torsional shear type bolt fastening device according to claim 2, characterized in that: an included angle formed between two adjacent fixing rods (22) is in the range of 3-65 degrees.

4. The utility model provides an use torsional shear type bolt-up device's torsional shear spanner which characterized in that: comprising a twist-shear bolt fastening device (2) according to any one of the preceding claims 1 to 3.

5. The twist-shear wrench as claimed in claim 4, wherein: comprises an outer cylinder (32) and an inner cylinder (31);

the outer cylinder (32) wraps the inner cylinder (31), and the outer cylinder (32) and the inner cylinder (31) are coaxially arranged;

the torsional shear wrench (3) drives the outer cylinder (32) and the inner cylinder (31) to coaxially rotate reversely;

the inner cylinder (31) is provided with a quincuncial groove (311) for fixing a quincuncial head of a bolt;

the fixing ring (21) is mounted on the outer cylinder (32) and has a central axis collinear with a central axis of the outer cylinder (32).

6. The torsional shear wrench applied to the torsional shear type bolt fastening device as claimed in claim 5, wherein: a spring ejector pin (312) is arranged in the quincunx groove (311), and the bolt quincunx head in the quincunx groove (311) can be ejected out when the spring ejector pin (312) is in a natural state.

7. The twist-shear wrench applying a twist-shear type bolt-tightening device according to claim 5, characterized in that: the torsional shear wrench (3) is at least provided with a rotating speed sensor (313) for monitoring the rotating speed of the inner barrel (31).

8. The twist-shear wrench using a twist-shear type bolt fastening device according to any one of claims 4 to 7, wherein: the fixing rod (22) is provided with a pressure sensor (221) for measuring the pressure born by the fixing rod.

9. The torsional shear wrench applied to the torsional shear type bolt fastening device as claimed in claim 5, wherein: the contraction device (4) comprises a power source (41) and a contraction barrel (42);

the contraction cylinder (42) is in a horn shape;

the outer end of the fixed rod (22) is abutted against the inner wall of the shrinkage cylinder (42);

the power source (41) is arranged on the torsional shear wrench (3) and is used for driving the shrinkage cylinder (42) to move.

10. The utility model provides an axial force check out test set with turn round type bolt-up device, its characterized in that: comprising a twist shear wrench (3) according to any one of the preceding claims 4-9.

Images