CN210571125U

CN210571125U - Tension detection device and vibration trigger thereof

Info

Publication number: CN210571125U
Application number: CN201920904231.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Jiangsu hydrogen guide intelligent equipment Co.,Ltd.
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-05-19
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a tension detection device and a vibration trigger thereof, wherein the vibration trigger comprises a first rotary driving piece, an eccentric wheel, a push rod, a guide seat and a reset piece, and the output end of the first rotary driving piece is connected with the eccentric wheel and drives the eccentric wheel to rotate; the eccentric wheel is provided with a curve profile with the radius gradually increasing, and a cliff is formed between the minimum radius and the maximum radius; the push rod is arranged on the guide seat in a sliding manner, and one end of the push rod is abutted against the periphery of the eccentric wheel; the piece that resets is established on the push rod, and the one end butt of the piece that resets is in the push rod, and the other end butt is in the guide holder. The periphery of the eccentric wheel is abutted to the push rod, so that the rotary motion of the eccentric wheel can be converted into the linear motion of the push rod, the push rod is used for triggering the steel belt to vibrate, and the error caused by artificially triggering the steel belt is reduced. And the push rod is reset through the reset piece sleeved on the push rod, so that the push rod is always abutted against the periphery of the eccentric wheel to realize reciprocating motion.

Description

Tension detection device and vibration trigger thereof

Technical Field

The utility model relates to a fuel cell technical field, concretely relates to tension detection device and vibrations trigger thereof.

Background

In the fuel cell production process, steel strips are used to bundle the fuel cells into a stack. After the bundling is finished, the tension of the steel belt needs to be detected to prevent the loose bundling. The tension of the steel strip is detected by calculating the vibration frequency of the steel strip, so that the steel strip needs to be triggered to vibrate. At present, a manual triggering mode is generally adopted for triggering, but the vibration of a steel belt is interfered when the manual triggering mode is adopted, and a larger detection error is brought.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tension detection device and vibrations trigger thereof to there is the technical problem of error in solving steel band vibration frequency.

In order to solve the technical problem, the utility model discloses a technical scheme be: providing a vibration trigger, wherein the vibration trigger comprises a first rotary driving piece, an eccentric wheel, a push rod, a guide seat and a reset piece, and the output end of the first rotary driving piece is connected with the eccentric wheel and drives the eccentric wheel to rotate; the eccentric wheel is provided with a curve profile with the radius gradually increasing, and a cliff is formed between the minimum radius and the maximum radius; the push rod is arranged on the guide seat in a sliding manner, and one end of the push rod is abutted against the periphery of the eccentric wheel; the reset piece is sleeved on the push rod and located between the eccentric wheel and the guide seat, one end of the reset piece is abutted to the push rod, and the other end of the reset piece is abutted to the guide seat.

Optionally, the acceleration at which the reset piece resets the push rod is greater than the acceleration of the rebound of the piece to be tested.

Optionally, the vibration trigger further comprises a rotating seat, a clamping opening is formed in the rotating seat, the eccentric wheel is located in the clamping opening, and two opposite ends of a rotating shaft of the eccentric wheel are respectively rotatably supported on the rotating seat.

Optionally, a sensor is arranged on the rotating seat, an induction sheet is arranged on a rotating shaft of the eccentric wheel, and the sensor is matched with the induction sheet.

Optionally, the vibrations trigger still includes the mounting panel, first rotary driving spare with the roating seat sets up respectively the relative both sides of mounting panel, seted up on the mounting panel and dodged the hole, the output of first rotary driving spare is worn to establish and is stretched out dodge the hole with the rotation axis of eccentric wheel is connected.

Optionally, be provided with adjusting screw seat and adjusting screw on the mounting panel, seted up on the adjusting screw seat along the axial screw hole of push rod, adjusting screw wears to establish and stretches out the screw hole to the butt in the roating seat is used for the drive the roating seat drives the eccentric wheel is to being close to the direction removal of push rod.

Optionally, the vibration trigger further comprises a fixed seat, the fixed seat is connected with the mounting plate, and the first rotary driving member is arranged on the fixed seat.

Optionally, the vibration trigger further includes a guide sleeve, a guide hole is formed in the guide seat, the guide sleeve is accommodated in the guide hole, and the push rod is arranged in the guide sleeve in a penetrating manner.

Optionally, the push rod includes first push rod main part and the second push rod main part of coaxial setting, the diameter of first push rod main part is greater than the diameter of second push rod main part in order to form the step portion in the junction of first push rod main part with the second push rod main part, reset the cover and establish in the second push rod main part, just one end butt of resetting the piece in step portion, the other end butt in the guide holder.

For solving the technical problem, the utility model discloses a another technical scheme is: provided is a tension detection device including: actuating mechanism, determine module and as the preceding vibrations trigger, actuating mechanism with the vibrations trigger with determine module connects, and the drive the vibrations trigger with determine module is close to the piece that awaits measuring, the vibrations trigger is used for triggering the piece that awaits measuring, so that the piece that awaits measuring shakes, determine module is used for detecting the frequency of vibration of the piece that awaits measuring.

The utility model has the advantages that: be different from prior art's condition, the embodiment of the utility model provides a have the gradually crescent curve profile's of radius eccentric wheel through the setting to with the periphery and the push rod butt of eccentric wheel, thereby can turn into the linear motion of push rod with the rotary motion of eccentric wheel, and utilize the push rod to trigger the steel band vibrations, thereby reduced the error that the artificial steel band that triggers brought. And the push rod is reset through the reset piece sleeved on the push rod, so that the push rod is always abutted against the periphery of the eccentric wheel to realize reciprocating motion.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic front view of a tension detecting device according to an embodiment of the present invention;

FIG. 2 is a schematic side view of the tension detecting device of FIG. 1;

FIG. 3 is a schematic front view of the shock trigger of FIG. 1;

FIG. 4 is a schematic top view of the shock trigger of FIG. 3;

FIG. 5 is a schematic structural view of the eccentric wheel of FIG. 3 in a state of being engaged with a push rod;

fig. 6 is a schematic front view of a vibration trigger according to another embodiment of the present invention;

FIG. 7 is a perspective view of the driving rod and the sliding block of FIG. 6;

fig. 8 is a schematic front view of a shock trigger according to another embodiment of the present invention;

FIG. 9 is a schematic view of the shock trigger of FIG. 6 with the strike moved into abutment with the pushrod;

FIG. 10 is a schematic view of the shock trigger of FIG. 6 with the striker portion moved out of engagement with the pushrod;

fig. 11 is a schematic view of the state of the striker portion in the shock trigger of fig. 6 in abutment with the push rod during return stroke;

fig. 12 is a schematic front view of a steel belt tension detecting device for pile packing according to another embodiment of the present invention;

fig. 13 is a side view schematically showing the structure of the steel strip tension detecting apparatus for cell packing in fig. 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic front view of a tension detecting device according to an embodiment of the present invention, and fig. 2 is a schematic side view of the tension detecting device in fig. 1. The utility model provides a tension detection device 100 for detect the tension of piece that awaits measuring. The tension detecting device 100 includes a driving mechanism 10, a vibration trigger 20, and a detecting member 30. The driving mechanism 10 is connected to the vibration trigger 20 and the detection assembly 30, and drives the vibration trigger 20 and the detection assembly 30 to approach the to-be-detected piece, the vibration trigger 20 is used for triggering the to-be-detected piece so that the to-be-detected piece freely vibrates, and the detection assembly 30 is used for detecting the vibration frequency of the to-be-detected piece.

The embodiment of the utility model provides a drive mechanism 10 drive vibrations trigger 20 and detection component 30 are close to the piece to be measured to utilize vibrations trigger 20 to trigger the free vibrations of piece to be measured, utilize detection component 30 to detect the vibration frequency of piece to be measured, and then according to the relation of vibration frequency and tension, calculate the tension that draws on the piece to be measured, and then make the tension value data ization of piece to be measured, promote the detection accuracy; and the driving mechanism 10 can automatically detect the tension of the next piece to be detected after completing the detection of one piece to be detected, thereby improving the detection efficiency.

In an embodiment, the object to be tested may be a conveyor belt used in a conveyor system, and the tension detection device 100 may be used to detect the tension of the conveyor belt sleeved on the driving wheel and the driven wheel. In this embodiment, the object is a steel strip for binding a stack of a fuel cell, and the tension detecting device 100 is used for detecting the tension of the steel strip, thereby preventing the stack from being loose due to loose binding.

Further, the relationship between the vibration frequency and the tension of the steel strip is as follows: t is 4ml²f². Wherein m is the mass per unit length of the steel strip (kg/m); l is the length (m) of the steel strip, which is the length of the steel strip that can be elastically deformed; f is the vibration frequency (HZ) of the steel strip; t is the tension (N) of the steel strip.

Alternatively, in the present embodiment, as shown in fig. 1 and fig. 2, the driving mechanism 10 includes a first driving assembly 11, a first transfer plate 13, a second driving assembly 15, a second transfer plate 17, and a third driving assembly 19. The driving end of the first driving assembly 11 is connected to the first transfer plate 13, and is configured to drive the first transfer plate 13 to move along a first direction. The second driving assembly 15 is disposed on the first transfer plate 13, and a driving end of the second driving assembly 15 is connected to the second transfer plate 17 for driving the second transfer plate 17 to move along the second direction. The third driving assembly 19 is disposed on the second transfer plate 17, and a driving end of the third driving assembly 19 is connected to the vibration trigger 20 and the detection assembly 30 for driving the vibration trigger 20 and the detection assembly 30 to move along the third direction. The first direction, the second direction and the third direction are mutually perpendicular.

Specifically, as shown in fig. 1 and 2, the driving end of the first driving assembly 11 is used for driving the second driving assembly 15 to move along the X direction shown in the figure, the driving end of the second driving assembly 15 is used for driving the third driving assembly 19 to move along the Y direction shown in the figure, and the driving end of the third driving assembly 19 is used for driving the vibration trigger 20 and the detection assembly 30 to move along the Z direction shown in the figure. Further, movement of the shock trigger 20 and detection assembly 30 in three dimensions may be achieved. The vibration trigger 20 and the detection assembly 30 in the embodiment have six degrees of freedom in six directions, so that the position accuracy of the vibration trigger 20 and the detection assembly 30 is high, on one hand, a steel strip can be triggered accurately to vibrate, and on the other hand, the vibration frequency of the steel strip can be detected conveniently.

Of course, in another embodiment, a six-axis robot may be further provided, the vibration trigger 20 and the detection assembly 30 are disposed at the output end of the six-axis robot, and the position adjustment of the vibration trigger 20 and the detection assembly 30 is realized through the movement and rotation of the six-axis robot, so as to realize the detection of the tension of the steel strip.

In the above embodiment, the driving mechanism 10 can drive the vibration trigger 20 and the detection assembly 30 to move in three directions perpendicular to each other. It will be appreciated that in other embodiments, the direction of drive of the drive mechanism 10 may also be flexibly set as desired. For example, the drive mechanism 10 may drive the vibration trigger 20 and the detection assembly 30 to move in one direction; alternatively, the driving mechanism 10 may drive the vibration trigger 20 and the detection assembly 30 to move in two directions perpendicular to each other, which is not limited in this disclosure.

Further, as shown in fig. 1 and fig. 2, the first driving assembly 11 includes a first driving member 112, a first lead screw 114 and a first lead screw nut (not shown), an output end of the first driving member 112 is connected to the first lead screw 114, the first lead screw nut is sleeved on the first lead screw 114 and is connected to the first lead screw 114 in a matching manner, and the first lead screw nut is connected to the first transfer plate 13. The second driving assembly 15 includes a second driving member 152, a second lead screw 154 and a second lead screw nut (not shown), and the second driving member 152 is disposed on the first transfer plate 13. The output end of the second driving element 152 is connected to the second lead screw 154, the second lead screw nut is sleeved on the second lead screw 154 and is connected to the second lead screw 154 in a matching manner, and the second lead screw nut is connected to the second transfer plate 17. The third driving assembly 19 includes a third driving element 192, a third lead screw 194, a third lead screw nut 196 and a connecting block 198, the third driving element 192 is disposed on the second transfer plate 17, an output end of the third driving element 192 is connected with the third lead screw 194, the third lead screw nut 196 is sleeved on the third lead screw 194 and is connected with the third lead screw 194 in a matching manner, the third lead screw nut 196 is connected with the connecting block 198, and the vibration trigger 20 and the detecting assembly 30 are disposed on the connecting block 198.

In this embodiment, the output shaft of the first driving member 112 is disposed along the X direction and connected to the first lead screw 114 through the first coupling, and the first lead screw 114 is connected to the first lead screw nut in a threaded fit manner. When the first driving member 112 drives the first lead screw 114 to rotate, the first lead screw 114 drives the first lead screw nut to drive the first transfer plate 13 connected thereto to move along the X direction.

An output shaft of the second driving member 152 is arranged along the Y direction and connected with a second lead screw 154 through a second coupling, and the second lead screw 154 is in threaded fit connection with a second lead screw nut. When the second driving element 152 drives the second lead screw 154 to rotate, the second lead screw 154 drives the second lead screw nut to drive the second transfer plate 17 connected thereto to move along the Y direction.

An output shaft of the third driving member 192 is arranged along the Z direction and connected with a third lead screw 194 through a third coupling, and the third lead screw 194 is in threaded fit connection with a third lead screw nut 196. When the third driving element 192 drives the third lead screw 194 to rotate, the third lead screw 194 drives the third lead screw nut 196 to drive the connecting block 198 connected with the third lead screw to move along the Z direction, and further drives the vibration trigger 20 and the detection assembly 30 arranged on the connecting block 198 to move along the Z direction.

Alternatively, the first driving element 112, the second driving element 152 and the third driving element 192 may be motors, or other rotating motion mechanisms.

Further, the tension detecting device 100 further includes a base plate 40. The first driving assembly 11 further includes a first guiding assembly 116, the first guiding assembly 116 includes a first guiding member 116a disposed on the bottom plate 40 and a second guiding member 116b disposed on the first transfer plate 13, and the first transfer plate 13 is slidably supported on the bottom plate 40 by the second guiding member 116b cooperating with the first guiding member 116 a.

The second driving assembly 15 further includes a second guiding assembly 156, the second guiding assembly 156 includes a third guiding element 156a disposed on the first transfer plate 13 and a fourth guiding element 156b disposed on the second transfer plate 17, and the second transfer plate 17 is slidably supported on the first transfer plate 13 by the fourth guiding element 156b cooperating with the third guiding element 156 a.

The third driving unit 19 further includes a third guide unit 191, the third guide unit 191 includes a fifth guide 191a disposed on the second transfer plate 17 and a sixth guide 191b disposed on the connecting block 198, and the connecting block 198 is slidably supported on the second transfer plate 17 by the cooperation of the sixth guide 191b and the fifth guide 191 a.

The first guide assembly 116 is disposed between the base plate 40 and the first transfer plate 13, and can be used to guide the first transfer plate 13 to improve the motion stability of the second driving assembly 15. A second guiding assembly 156 is disposed between the first transfer board 13 and the second transfer board 17, and can be used to guide the second transfer board 17 to improve the motion stability of the third driving assembly 19. A third guiding assembly 191 which is matched with the second transfer plate 17 and the connecting block 198 is arranged between the second transfer plate and the connecting block 198, and can be used for guiding the connecting block 198 to improve the motion smoothness of the connecting block 198. And then the motion stability of the driving mechanism 10 is improved, so that the motion of the vibration trigger 20 and the detection assembly 30 is more stable, and the position adjustment is more accurate, thereby improving the detection precision of the tension.

Wherein, first direction subassembly 116, second direction subassembly 156 and third direction subassembly 191 can be for the slide rail and the slider of mutually supporting, also can be for guide arm and guide pin bushing of mutually supporting, the embodiment of the utility model provides a do not specifically prescribe a limit.

Further, as shown in fig. 1 and 2, each of the first guide assembly 116, the second guide assembly 156, and the third guide assembly 191 includes two sets, and the two sets of first guide assemblies 116 are respectively symmetrically disposed on two opposite sides of the first screw 114. Two sets of second guiding assemblies 156 are symmetrically disposed on opposite sides of the second screw 154. The two groups of third guiding assemblies 191 are respectively and symmetrically arranged at two opposite sides of the third screw rod 194. The guide assemblies are symmetrically arranged on the two opposite sides of the screw rod, so that the first moving and carrying plate 13, the second moving and carrying plate 17 and the connecting block 198 are stressed uniformly, and the movement stability is further improved.

Optionally, in this embodiment, a first driving member fixing seat (not shown in the figure) and a first screw fixing seat (not shown in the figure) may also be disposed on the bottom plate 40. The first driving member 112 is disposed on the first driving member fixing seat, and the first lead screw 114 is rotatably supported on the first lead screw fixing seat. Through the arrangement mode, the first driving part 112 can be fixed conveniently, the first lead screw fixing seat can also play a role in supporting the first lead screw 114, and the movement stability of the driving mechanism 10 can be improved.

It is understood that a second driving element fixing seat and a second screw rod fixing seat can also be arranged on the first transfer plate 13. A third driving piece fixing seat and a third screw rod fixing seat can also be arranged on the second transplanting plate. The arrangement of the first driving member fixing seat and the first lead screw fixing seat is referred to, and the detailed description is omitted here.

Further, as shown in fig. 1 and 2, the second transfer plate 17 includes a first plate 172 and a second plate 174, the first plate 172 is vertically connected to the second plate 174, the first plate 172 is connected to the second driving assembly 15, and the third driving assembly 19 is disposed on the second plate 174.

The first plate 172 is parallel to the plane of the first transfer plate 13, and the second plate 174 is perpendicular to the plane of the first plate 172.

As shown in fig. 2, the detecting assembly 30 includes a vibration sensor 32, a sensor fixing plate 34, and an adjusting slide 36. The sensor fixing plate 34 is arranged on the connecting block 198, the adjusting sliding table 36 is arranged on the sensor fixing plate 34, and the vibration sensor 32 is connected with the adjusting sliding table 36. By connecting the vibration sensor 32 with the adjustment slide 36, the position of the vibration sensor 32 can be conveniently adjusted, and the vibration frequency of the steel strip can be accurately detected.

Specifically, the vibration sensor 32 may be a laser sensor or a tone sensor, and the present invention is not limited thereto.

As shown in fig. 3 to 5, fig. 3 is a front view schematic diagram of the vibration trigger in fig. 1, fig. 4 is a top view schematic diagram of the vibration trigger in fig. 3, and fig. 5 is a schematic diagram of the eccentric wheel in fig. 3 in a state of being engaged with the push rod. The vibration trigger 20a includes a first rotary drive 21, an eccentric 23, a push rod 25, a guide shoe 27 and a reset element 29. The output of the first rotary drive 21 is connected to an eccentric 23 and drives the eccentric 23 in rotation. The eccentric 23 has a curved profile with a radius that increases gradually and forms a cliff 232 between a minimum radius and a maximum radius. The push rod 25 is slidably disposed on the guide seat 27, and one end of the push rod 25 abuts against a peripheral edge 234 of the eccentric wheel 23. The reset piece 29 is sleeved on the push rod 25 and located between the eccentric wheel 23 and the guide seat 27, one end of the reset piece 29 abuts against the push rod 25, and the other end abuts against the guide seat 27.

The embodiment of the utility model provides a through the eccentric wheel 23 that sets up the curve profile that has the radius gradually increase to periphery 234 and the push rod 25 butt of eccentric wheel 23, thereby can turn into the rotary motion of eccentric wheel 23 the linear motion of push rod 25, and utilize push rod 25 to trigger the steel band vibrations, and then reduced the error that the artificial steel band that triggers brought. And the push rod 25 is reset through the reset piece 29 sleeved on the push rod 25, so that the push rod 25 always abuts against the periphery 234 of the eccentric wheel 23 to realize reciprocating motion.

In this embodiment, the first rotary driving member 21 may adopt a rotary motion mechanism such as a motor, and the embodiment of the present invention is not particularly limited.

As shown in fig. 5, the operation principle of the vibration trigger 20a in the present embodiment is as follows: initially, the push rod 25 abuts at the position where the radius of the eccentric 23 is smallest, and as the first rotary drive 21 drives the eccentric 23 to rotate (clockwise as viewed in the drawing), the eccentric 23 drives the push rod 25 to move towards the steel strip and compress the restoring member 29 to apply pressure to the steel strip on the right side of the guide shoe 27. When the push rod 25 moves to the position of the cliff 232, the abutting acting force of the eccentric wheel 23 on the push rod 25 disappears, the elastic force of the resetting piece 29 acts on the push rod 25, so that the push rod 25 retracts rapidly and is separated from the steel strip, the separated acceleration is greater than the rebounding acceleration of the steel strip, and the steel strip can vibrate freely. The reset acceleration of the reset piece 29 to the push rod 25 is larger than the rebound acceleration of the steel strip, so that the steel strip can freely vibrate, the error caused by the interference of the vibration trigger 20a to the steel strip vibration is reduced, and the detection precision of the tension detection device 100 is improved.

Further, as shown in fig. 3 and 4, the vibration trigger 20a further includes a rotary base 22, a clamping opening 221 is formed on the rotary base 22, the eccentric wheel 23 is located in the clamping opening 221, and opposite ends of a rotating shaft of the eccentric wheel 23 are rotatably supported on the rotary base 22, respectively. The movement of the push rod 25 can be made more stable by fixing the opposite ends of the rotation shaft of the eccentric 23 by providing the rotary base 22.

Further, a sensor 223 is disposed on the rotary base 22, a sensing piece 236 is disposed on the rotary shaft of the eccentric wheel 23, and the sensor 223 and the sensing piece 236 are matched with each other. Wherein, sensor 223 can be photoelectric sensor or proximity sensor etc. the utility model discloses do not do specifically and restrict.

Specifically, in the present embodiment, the sensor 223 is a photoelectric sensor, as shown in fig. 4, a sensing piece 236 is disposed at the end of the rotation shaft of the eccentric wheel 23, the photoelectric sensor is fixedly disposed on the rotary seat 22, and when the rotation shaft rotates for one turn, the sensing piece 236 passes through the photoelectric sensor, so as to block the light path between the emitting end and the receiving end of the photoelectric sensor, and further trigger the photoelectric sensor. The photoelectric sensor is electrically connected with the detection assembly 30, and a trigger signal generated by the photoelectric sensor is transmitted to the detection assembly 30 to control the detection assembly 30 to detect the vibration frequency of the steel strip after the vibration trigger 20a is triggered.

Further, as shown in fig. 3 and 4, the vibration trigger 20a further includes a mounting plate 24, the first rotary driving member 21 and the rotary seat 22 are respectively disposed on two opposite sides of the mounting plate 24, the mounting plate 24 is provided with an avoiding hole 242, and an output end of the first rotary driving member 21 penetrates through the avoiding hole 242 and is connected to a rotating shaft of the eccentric wheel 23. The mounting plate 24 may be used to secure the swivel 22 to promote smooth movement of the shock trigger 20 a.

Optionally, as shown in fig. 3 and 4, an adjusting screw seat 244 and an adjusting screw 246 are provided on the mounting plate 24. The adjusting screw seat 244 is provided with a screw hole along the axial direction of the push rod 25, and the adjusting screw 246 penetrates through the screw hole and abuts against the rotating seat 22, so as to drive the rotating seat 22 to drive the eccentric wheel 23 to move towards the direction close to the push rod 25. The present embodiment can facilitate fine adjustment of the relative position between the eccentric wheel 23 and the push rod 25 by providing the adjusting screw seat 244 and the adjusting screw 246, thereby improving the alignment accuracy of the vibration trigger 20a and the steel band.

As shown in fig. 3 and 4, the vibration trigger 20a further includes a fixing seat 26, the fixing seat 26 is connected to the mounting plate 24, and the first rotary driving member 21 is disposed on the fixing seat 26. By providing the fixing base 26, the vibration trigger 20a can be integrated into a whole, so that the vibration trigger 20a can be conveniently connected with the connecting block 198.

Optionally, as shown in fig. 3 and 4, the vibration trigger 20a further includes a guide sleeve 28, the guide seat 27 is provided with a guide hole 272, the guide sleeve 28 is accommodated in the guide hole 272, and the push rod 25 is inserted into the guide sleeve 28. By providing the guide bush 28, the movement accuracy of the push rod 25 can be improved.

In the present embodiment, as shown in fig. 5, the pushrod 25 includes a first pushrod body 252 and a second pushrod body 254 which are coaxially disposed, and the diameter of the first pushrod body 252 is larger than that of the second pushrod body 254 to form a stepped portion 256 at the junction of the first pushrod body 252 and the second pushrod body 254. The reset piece 29 is sleeved on the second push rod main body 254, and one end of the reset piece 29 abuts against the step portion 256, and the other end abuts against the guide seat 27.

In another embodiment, the end of restoring element 29 remote from guide seat 27 may also be fixedly disposed on push rod 25. For example, one end of return element 29 may be secured to pushrod 25 by welding, adhesive, or the like.

Referring to fig. 6, fig. 6 is a schematic front view of a vibration trigger according to another embodiment of the present invention. The vibration trigger 20b includes a guide holder 51, a push rod 53, a reset member 55, a chute block 57, and a driving lever 59. Wherein, the push rod 53 passes through the guide seat 51 in a sliding way; the reset piece 55 is abutted between the guide seat 51 and the push rod 53; the sliding groove block 57 is provided with a sliding surface 572; the drive lever 59 is urged to move along the slide face 572, and the drive lever 59 has an striker portion 592, the striker portion 592 moving synchronously with the drive lever 59 to abut against the push rod 53 to push the push rod 53 and compress the reset piece 55, and to disengage from the push rod 53 when the drive lever 59 moves along the slide face 572 to the set position.

Through setting up the spout piece 57 and the actuating lever 59 that mutually support, and set up the glide plane 572 on the spout piece 57, set up striking portion 592 on the actuating lever 59, when the actuating lever 59 receives thrust and moves along the glide plane 572, striking portion 592 at first contacts with push rod 53 and butt push rod 53 overcomes the effort of piece 55 that resets, move in order to continuously pressing the piece that awaits measuring to be close to the direction that awaits measuring and make it take place the deformation, then striking portion 592 breaks away from with push rod 53, push rod 53 resets under the effect of piece 55 that resets, the piece that awaits measuring produces vibrations, and then the vibrations that have accomplished the piece that awaits measuring trigger, and the error that artificially triggers the piece that awaits measuring and bring has been reduced.

When the driving rod 59 moves to the set position, the pushing action force of the pushing rod 53 on the piece to be detected is large, so as to drive the piece to be detected to vibrate violently, and the detection assembly 30 can detect the vibration frequency conveniently.

Further, the reset piece 55 resets the push rod 53 at an acceleration greater than the rebound acceleration of the piece to be tested. The acceleration that resets push rod 53 through setting up piece 55 that resets is greater than the acceleration that awaits measuring a bounce-back, can not take place to interfere with push rod 53 when making the awaiting measuring a vibrations, and then reduces the produced error of the interference of vibrations trigger 20b to awaiting measuring a vibrations for the awaiting measuring a freely shakes.

In the present embodiment, as shown in fig. 6 and 7, fig. 7 is a schematic perspective view of the slide groove block and the driving rod in fig. 6 in a matching state. Slide groove block 57 includes first slide groove block 574 and second slide groove block 576, and second slide groove block 576 is provided on first slide groove block 574 and located on a side of first slide groove block 574 close to push rod 53, and a side surface of second slide groove block 576 constitutes slide surface 572.

Specifically, the second slider block 576 is disposed on a side close to the push rod 53, and a side of the second slider block 576 remote from the push rod 53 is the slide surface 572. In the moving direction of the driving lever 59 toward the test object, i.e., the first direction D1 shown in the drawing, the distance between the sliding surface 572 and the push rod 53 gradually increases. When the drive lever 59 is moved in the first direction D1, the striker 592 first abuts the push rod 53; then, as the drive lever 59 moves in the direction away from the push rod 53 along the slide surface 572, the striking portion 592 slides relative to the push rod 53 and is disengaged from the push rod 53.

In the present embodiment, as shown in fig. 6, the sliding surface 572 is provided as a curved surface. In another embodiment, the sliding surface 572 can also be a sloped surface that is angled with respect to the first direction D1.

As shown in fig. 6 and 7, the drive rod 59 further includes a slide bar 594, the slide bar 594 extending in the direction of the slide groove block 57 and slidably engaging the slide face 572. By providing the slide bar 594 engaged with the slide face 572, the contact area between the drive lever 59 and the chute block 57 can be reduced, thereby reducing the friction between the drive lever 59 and the chute block 57.

Further, as shown in fig. 6, the vibration trigger 20b further includes a driving member 52, a swing shaft 54, and a torsion spring (not shown). The driving member 52 is hinged to the driving rod 59 by the swing shaft 54, and the torsion spring is inserted through the swing shaft 54 to torsionally connect the driving member 52 with the driving rod 59, so that the sliding rod 594 has a pre-tightening force close to the sliding surface 572. By providing the torsion spring, the driving lever 59 can be pulled by the torsion spring to have a pre-tightening force close to the sliding surface 572, so that the driving lever 59 always slides along the sliding surface 572 when the external force disappears.

Of course, in another embodiment, as shown in fig. 8, fig. 8 is a schematic front view of a shock trigger in another embodiment of the present invention. The vibration trigger 20b further includes a driving member 52, a mounting bracket 56, and an elastic member 58, wherein the driving member 52 is hinged to the driving rod 59, and the elastic member 58 is disposed between the driving rod 59 and the mounting bracket 56 to provide a pre-load force to the sliding rod 594 to approach the sliding surface 572.

Specifically, in the present embodiment, the elastic member 58 may be provided at a side of the driving lever 59 close to the push rod 53 to apply a pulling force to the driving lever 59 toward the push rod 53. In yet another embodiment, the elastic member 58 may be provided on a side of the driving lever 59 away from the push rod 53 to apply a pushing force to the driving lever 59 toward the push rod 53.

As shown in fig. 6, in the present embodiment, the driving element 52 includes a cylinder 521 and a swing seat 523, and an output shaft of the cylinder 521 is connected to the swing seat 523 for driving the swing seat 523 to move. The swing seat 523 is hinged to the driving rod 59. In other embodiments, other linear reciprocating mechanisms may be adopted, and the embodiments of the present invention are not particularly limited.

Further, as shown in fig. 6, the striking portion 592 has a first surface 596 and a second surface 598, the first surface 596 being perpendicular to the axial direction of the pushrod 53. Through setting up the first surface 596 perpendicular with push rod 53, can prevent that striking portion 592 from propping the in-process that push rod 53 pressed and hold the piece to be tested, slided out from push rod 53 in advance to can avoid shaking trigger 20b less and make the vibration frequency of the piece to be tested less to the butt effort of the piece to be tested.

Further, the second surface 598 is an arc-shaped surface or an inclined surface. When the driving member 52 drags the driving rod 59 to move away from the workpiece, the sliding rod 594 moves along the sliding surface 572. As the distance between the slide bar 594 and the push rod 53 gradually decreases, the second surface 598 of the striker 592 will come into contact with the push rod 53 during the return stroke. Due to the limiting effect of the guide seat 51 on the push rod 53, the push rod 53 abuts against the impact portion 592, so that the impact portion 592, the driving rod 59, and the sliding rod 594 move in the direction away from the push rod 53, and the sliding rod 594 is separated from the sliding surface 572, and has a pre-tightening force toward the sliding surface 572 under the action of the torsion spring or the elastic member 58. When the striking portion 592 is disengaged from the push rod 53, the slide bar 594 continues to move along the slide surface 572 under the biasing force of the torsion spring or elastic member 58.

In the embodiment, by providing the second surface 598 of the striking part 592 as an arc-shaped surface or an inclined surface, the relative sliding between the push rod 53 and the striking part 592 can be facilitated, and the push rod 53 is prevented from obstructing the reciprocating motion of the striking part 592.

Further, as shown in fig. 6, the vibration trigger 20b further includes a guide sleeve 512, a guide hole 514 is formed on the guide base 51, the guide sleeve 512 is accommodated in the guide hole 514, and the push rod 53 is inserted into the guide sleeve 512. By arranging the guide sleeve 512, the movement precision of the push rod 53 can be improved.

In this embodiment, as shown in fig. 6, the push rod 53 includes a pushing portion 532 and a rod portion 534. The size of the pushing portion 532 is larger than that of the rod portion 534, the rod portion 534 penetrates through the guide seat 51, the reset piece 55 is sleeved on the rod portion 534, one end of the reset piece 55 abuts against the pushing portion 532, and the other end of the reset piece 55 abuts against the guide seat 51. By providing the push portion 532, on the one hand, the contact area of the push rod 53 and the striking portion 592 can be increased, so that the movement of the push rod 53 is more stable; on the other hand, the reset member 55 may be sandwiched between the push portion 532 and the guide holder 51 without providing a separate fixing structure for the reset member 55.

Optionally, a limiting member (not shown) may be disposed on a side of the pushing portion 532 away from the guide seat 51, and when the reset element 55 elastically resets the push rod 53, the push rod 53 abuts against the limiting member, so as to prevent the rod portion 534 from coming out of the guide seat 51.

The operation principle of the vibration trigger 20b of the present invention is described below with reference to fig. 6 and 9 to 11:

in the triggering stroke: when the driving member 52 drives the driving rod 59 to move from the initial position to a direction approaching the workpiece, i.e., to the left, the sliding rod 594 moves along the sliding surface 572 before the striking portion 592 contacts the push rod 53. When the test piece moves to the state shown in fig. 9, the first surface 596 of the striking portion 592 starts to contact with the pushing portion 532 and continuously moves leftward along the sliding surface 572 under the action of the driving rod 59, so as to push the push rod 53 to continuously press and hold the test piece on the left side of the guide seat 51. When the device moves to the state shown in fig. 10, the impact portion 592 is separated from the pushing portion 532, at this time, the reset member 55 resets the push rod 53, so that the acceleration of the movement of the push rod 53 to the right side is greater than the acceleration of the rebound of the device to be tested, so as to avoid the interference on the device to be tested, and further complete the triggering of the device to be tested, and the pushing portion 532 stops moving under the action of the limiting member.

In the return stroke: when the driving member 52 drives the driving rod 59 to move away from the workpiece, i.e., to the right, the sliding rod 594 moves along the sliding surface 572 before the striking portion 592 contacts the push rod 53. When the second surface 598 of the striking portion 592 is in contact with the pushing portion 532 in the state shown in fig. 11, the striking portion 592 and the sliding rod 594 are separated from the sliding surface 572 by the pushing rod 53 due to the holding action of the guide seat 51 on the pushing rod 53, and the driving rod 59 has a biasing force toward the sliding surface 572 by the torsion spring or the elastic member 58, so that the balance is maintained. After the second surface 598 of the striking portion 592 is disengaged from the push rod 53, the slide bar 594 continues to move along the slide face 572 to the initial position under the influence of the biasing force.

In the above embodiments, the return member and the elastic member may both adopt springs. Of course, in other embodiments, other types of elastic elements may be provided according to the needs, and the present invention is not limited in particular.

The utility model discloses another aspect still provides a galvanic pile packing steel band tension check out test set 300, as shown in fig. 12 and fig. 13, fig. 12 is the utility model discloses another embodiment's galvanic pile packing steel band tension check out test set's main view structure schematic diagram, fig. 13 is the galvanic pile packing steel band tension check out test set's in fig. 12 a side view structure schematic diagram. The pile packing steel belt tension detecting apparatus 300 includes a second rotary driving member 310, a turntable 320, a supporting plate 330 and a tension detecting device 100, an output end of the second rotary driving member 310 is connected with the turntable 320 and drives the turntable 320 to rotate, the supporting plate 330 is disposed on the turntable 320, the pile 200 is placed on the supporting plate 330, and the tension detecting device 100 is used for detecting tension of the steel belt 210.

In this embodiment, the structure of the tension detecting device 100 is the same as the structure of the tension detecting device 100 in the above embodiment, please refer to the description in the above embodiment, and the description thereof is omitted here.

Specifically, in the present embodiment, the second rotary drive 310 employs a rotary cylinder. Of course, in other embodiments, a motor may also be used, and the present invention is not limited in particular. The stack 200 is positioned and supported on the turntable 320 by the support plate 330 to maintain a stable position. The rotary cylinder is connected with the bottom plate 40 through the rotary cylinder fixing seat 340, and a rotary shaft of the rotary cylinder penetrates through the bottom plate 40 and is connected with the turntable 320 positioned on the other side of the bottom plate 40. In the embodiment, by providing the rotary cylinder, after the tension detection device 100 detects the tension of all the steel belts 210 on one side of the stack 200, the driving turntable 320 rotates 180 degrees, so that the steel belt 210 on the other side of the stack 200 rotates to be opposite to the vibration trigger 20 and the vibration sensor 32, and the steel belts 210 on the two opposite sides of the stack 200 are detected, thereby improving the detection efficiency of the steel belts 210.

As shown in fig. 13, in the present embodiment, the stack 200 is formed by bundling four steel bands 210. The operation principle of the steel band tension detecting device 300 for pile packing according to the present invention will be described with reference to fig. 1 to 13:

first, the bundled stack 200 is placed on the support plate 330 of the turntable 320 such that one side steel band 210 of the stack 200 faces the sensing unit 30 and the shaking trigger 20 on the tension sensing device 100.

Then, the driving mechanism 10 drives the vibration trigger 20 and the sensing assembly 30 to move toward one of the steel strips 210 and stay at a predetermined position. The predetermined position may be, for example, at the centerline of the steel strip 210. At this time, the first rotary driving member 21 in the vibration trigger 20 rotates to drive the eccentric wheel 23 to abut against the push rod 25, so that the push rod 25 moves to gradually apply pressure to the steel strip 210, when the push rod 25 moves to the position of the cliff 232, the reset member 29 drives the push rod 25 to retract rapidly, and at the same time, the sensor 223 detects that the push rod 25 is triggered, controls the vibration sensor 32 to detect the vibration frequency of the steel strip 210, and sets the vibration frequency to 4ml according to the formula T²f²The tension on the steel strip 210 can be calculated. Subsequently, the driving mechanism 10 continues to drive the vibration trigger and detection assembly 30 to move toward the next steel strip 210, and the detection of the tension on the next steel strip 210 is completed as described above. And so on, completing the tension detection on all the steel belts 210 positioned on one side of the stack 200 one by one.

Finally, the second rotary driver 310 drives the turntable 320 to rotate 180 degrees so that the steel strip 210 at the other side of the stack 200 faces the shaking trigger 20 and the sensing assembly 30. According to the detection method of the steel strip 210 on one side, the vibration trigger 20 and the detection assembly 30 cooperate again to detect the tension on all the steel strips 210 located on the other side of the stack 200 one by one.

In summary, as those skilled in the art can easily understand, the embodiment of the present invention drives the vibration trigger 20 and the detection component 30 to be close to the to-be-detected piece through the driving mechanism 10, and uses the vibration trigger 20 to trigger the to-be-detected piece to freely vibrate, and uses the detection component 30 to detect the vibration frequency of the to-be-detected piece, and then calculates the tension on the to-be-detected piece according to the relationship between the vibration frequency and the tension, so as to quantize the tension value of the to-be-detected piece, and improve the detection precision; and the driving mechanism 10 can automatically detect the tension of the next piece to be detected after completing the detection of one piece to be detected, thereby improving the detection efficiency.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A vibration trigger is characterized by comprising a first rotary driving piece, an eccentric wheel, a push rod, a guide seat and a reset piece, wherein the output end of the first rotary driving piece is connected with the eccentric wheel and drives the eccentric wheel to rotate; the eccentric wheel is provided with a curve profile with the radius gradually increasing, and a cliff is formed between the minimum radius and the maximum radius; the push rod is arranged on the guide seat in a sliding manner, and one end of the push rod is abutted against the periphery of the eccentric wheel; the reset piece is sleeved on the push rod and located between the eccentric wheel and the guide seat, one end of the reset piece is abutted to the push rod, and the other end of the reset piece is abutted to the guide seat.

2. The vibration trigger according to claim 1, wherein the vibration trigger is configured to trigger a to-be-tested member to vibrate the to-be-tested member, and an acceleration of the reset member resetting the push rod is greater than an acceleration of a rebound of the to-be-tested member.

3. The vibration trigger of claim 1, further comprising a rotary base, wherein a clamping opening is formed on the rotary base, the eccentric wheel is located in the clamping opening, and two opposite ends of a rotating shaft of the eccentric wheel are respectively rotatably supported on the rotary base.

4. The vibration trigger according to claim 3, wherein the rotating base is provided with a sensor, the rotating shaft of the eccentric wheel is provided with an induction sheet, and the sensor is matched with the induction sheet.

5. The vibration trigger of claim 3, further comprising a mounting plate, wherein the first rotary driving member and the rotary seat are respectively disposed at two opposite sides of the mounting plate, the mounting plate is provided with an avoiding hole, and an output end of the first rotary driving member penetrates through the avoiding hole and is connected with a rotary shaft of the eccentric wheel.

6. The vibration trigger according to claim 5, wherein the mounting plate is provided with an adjusting screw seat and an adjusting screw, the adjusting screw seat is provided with a screw hole along the axial direction of the push rod, the adjusting screw penetrates through the screw hole and abuts against the rotary seat, so as to drive the rotary seat to drive the eccentric wheel to move towards the direction close to the push rod.

7. The shock trigger of claim 5, further comprising a fixed mount, the fixed mount being connected to the mounting plate, the first rotary drive being disposed on the fixed mount.

8. The vibration trigger of claim 1, further comprising a guide sleeve, wherein the guide seat is provided with a guide hole, the guide sleeve is accommodated in the guide hole, and the push rod is inserted into the guide sleeve.

9. The shock trigger according to claim 1, wherein the push rod includes a first push rod main body and a second push rod main body which are coaxially disposed, a diameter of the first push rod main body is larger than a diameter of the second push rod main body so as to form a step portion at a joint of the first push rod main body and the second push rod main body, the reset member is sleeved on the second push rod main body, one end of the reset member abuts against the step portion, and the other end of the reset member abuts against the guide seat.

10. A tension detecting device, characterized by comprising: actuating mechanism, detection component and claim 1-9 any of the vibrations trigger, actuating mechanism with the vibrations trigger with detection component connects, and drives the vibrations trigger with detection component is close to the piece that awaits measuring, the vibrations trigger is used for triggering the piece that awaits measuring, so that the piece that awaits measuring shakes, detection component includes the vibrations sensor, the vibrations sensor is laser sensor or tone sensor, the vibrations sensor is used for detecting the frequency of shaking of the piece that awaits measuring.