CN216718029U - Power line tension and torque testing machine with self-adaptive closed-loop accurate control - Google Patents

Abstract

The utility model relates to a power line tension and torque testing machine with self-adaptive closed-loop accurate control, which comprises a support, wherein a testing mechanism is arranged on the support in a sliding manner along the vertical direction, the support is provided with a sliding component for driving the testing mechanism to slide, one side of the support is also provided with a placing frame for placing a sample, the testing mechanism comprises a supporting piece, a twisting part and a sliding part, and a clamping part is rotationally arranged on the supporting piece, wherein: a clamping part: the clamping device is used for clamping the power line; a twisting part: the torque detection assembly is arranged between the torsion part and the clamping part; a sliding part: the tension detection assembly is used for driving the support piece to slide, and the tension detection assembly is arranged between the sliding part and the support piece. It only needs the testing personnel to press from both sides the power cord tightly to adjustment accredited testing organization's height can directly utilize this equipment to exert pulling force and moment of torsion to the power cord and test, and operation process is simple, convenient to use.

Description

Power line tension and torque testing machine with self-adaptive closed-loop accurate control

Technical Field

The utility model relates to the field of power line detection, in particular to a power line tension and torque testing machine with self-adaptive closed-loop accurate control.

Background

When the power cord of the electrical equipment is detected, the tensile property and the torsion resistance of the power cord are tested according to the section 25.15 in the standard of safety of GB4706.1-2005 household appliances and similar appliances, and whether the wiring end of the power cord is firm or not is detected.

At present, the commonly used detection equipment generally applies tension and torsion to a power line in a mode of adding tension weights or torsion weights for detection, and the height position of a sample to be detected needs to be adjusted before detection, so that the power line between a wiring end and the detection equipment coincides with the axis during torsion detection, and the detection precision is guaranteed. When the detection is carried out, a detection person is required to add a tension weight or a torsion weight on the detection equipment, and a proper weight is required to be selected according to the quality of the electrical equipment for testing. In conclusion, when the sample is detected, the height of the sample needs to be adjusted, and a proper tension weight and a proper torsion weight are assembled on the detection equipment, so that the operation process is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide an adaptive closed-loop accurate control power line tension and torque tester, which solves one or more problems of the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a power cord pulling force, the torsion test machine of self-adaptation closed loop accurate control, includes the support, the support slides along vertical direction and is equipped with accredited testing organization, the support is equipped with and is used for ordering about the subassembly that slides that accredited testing organization slided, support one side still is equipped with the frame of putting that is used for putting the sample, accredited testing organization includes support piece, torsion portion and the portion of sliding, the last rotation of support piece is equipped with the clamping part, wherein:

a clamping part: the rotating axis of the clamping part is superposed with the part of the power cord between the clamping part and the wiring terminal;

a twisting part: the torque detection assembly is arranged between the torsion part and the clamping part;

a sliding part: the clamping part is used for clamping the supporting piece, and the clamping part is used for clamping the supporting piece.

Furthermore, the clamping part includes the body, the body slides and is equipped with first holder and second holder, first holder with the glide direction of second holder is parallel, the body is equipped with and is used for driving first holder with the gliding driving piece of second holder orientation each other, the driving piece include with body screw-thread fit's first screw rod and second screw rod, first screw rod with first holder normal running fit, the second screw rod with second holder normal running fit.

Furthermore, the side surfaces of the first clamping piece and the second clamping piece facing each other are provided with accommodating grooves for clamping a power line, and the two accommodating grooves are parallel to each other.

Further, the cross-section of the accommodating groove is triangular.

Further, when the power cord is clamped between the two accommodating grooves, the clamped power cord is overlapped with the rotation axis of the clamping part.

Furthermore, the body is also provided with a winding part, the winding part is provided with a groove, and a power line penetrating through the accommodating groove is embedded into the groove.

Furthermore, the grooves are provided with a plurality of grooves, and the groove widths of the grooves are different.

Furthermore, the sliding part comprises a base, the base is provided with a first lead screw, the base is further provided with a first motor for driving the first lead screw to rotate, the first lead screw is in threaded connection with a first screw seat, the supporting piece is arranged on the base in a sliding mode, the first screw seat is connected with the supporting piece through the tension detection assembly, and the first screw seat drives the supporting piece to slide through the tension detection assembly.

Further, the portion of twisting reverse including being used for the drive clamping part pivoted second motor, the second motor sets up support piece is last, the moment of torsion determine module sets up the second motor with between the portion of twisting reverse, the second motor passes through the moment of torsion determine module drives the clamping part rotates.

Further, the subassembly that slides include with support normal running fit's second lead screw and be used for the drive second lead screw pivoted third motor, the axis of second lead screw sets up along vertical direction, second lead screw threaded connection has the second screw seat, the second screw seat with accredited testing organization connects.

Compared with the prior art, the utility model has the following beneficial technical effects:

firstly, placing a sample to be detected on a placing frame before detection, and fixing the sample by using a quick clamp or an adhesive tape. The height of the testing mechanism is then adjusted so that the terminal of the sample power cord coincides with the axis of rotation of the clamping portion. After the detection personnel use the clamping part to press from both sides tight power cord, start this accredited testing organization, the portion of sliding drives support piece and clamping part and slides, applys stipulated pulling force to the power cord, repeats 25 times, drives the clamping part by the portion of twisting afterwards and rotates, applys the moment of torsion to the power cord to accomplish standard experimental flow. Meanwhile, the tension detection assembly is used for monitoring the tension borne by the power line; the torque detection assembly is used for monitoring the torque borne by the power line, and the tensile force and the torque applied during the test can be ensured to meet the test requirements. In the testing process, only need the testing personnel to press from both sides the power cord tightly to utilize the subassembly adjustment accredited testing organization's that slides height, can directly utilize this equipment to exert pulling force and moment of torsion to the power cord and test, operation process is simple, directly uses the tensile and the antitorque performance of a equipment test power cord wiring end moreover, convenient to use.

The cross section of (II) holding tank is triangle-shaped, then when inlaying the power cord between two holding tanks, has two line contact's position between the cell wall of power cord and every holding tank to stability when guaranteeing power and pressing from both sides tightly, consequently can utilize the holding tank to press from both sides the power cord of tight different diameters.

(III) set up the winding part to in will passing the power cord embedding recess of holding tank, then if the power cord overlength that passes the holding tank, can twine the power cord on the winding part, and with power cord embedding recess, avoid the power cord to drop from the winding part. The power cord that will pass the holding tank twines on the winding part, can avoid the power cord to pass the holding tank back natural flagging, the operation of interference accredited testing organization.

When the first motor operates, the first screw seat pulls the supporting piece to slide through the tension detection assembly, the tension detection assembly can monitor the tension of the first screw seat on the supporting piece, and the tensile capacity of the wiring end of the power line is detected.

And (V) when the second motor runs, the clamping part is driven to rotate through the torque detection assembly, the torque detection assembly can monitor the torque when the clamping part rotates, and then the torque resistance of the wiring end of the power line is detected.

Drawings

FIG. 1 is a schematic structural diagram of a tensile and torsional testing machine according to an embodiment of the utility model;

FIG. 2 is a schematic view of the mating of the mounting portion to the bracket in an embodiment of the utility model;

FIG. 3 shows a schematic structural diagram of a test mechanism in an embodiment of the utility model;

FIG. 4 shows a schematic view of the mating of the base and the support in an embodiment of the utility model;

FIG. 5 shows a schematic view of the engagement of a first nut block with a support member in an embodiment of the utility model;

fig. 6 shows a schematic view of the engagement of the winding drum and the clamping portion in the embodiment of the present invention.

In the drawings, the reference numbers:

1. a base; 11. a slide rail; 12. a first lead screw; 121. a first nut block; 122. positioning blocks; 13. a first motor; 14. a tension detection assembly; 2. a support member; 21. a block body; 22. mounting blocks; 23. positioning a groove; 3. a body; 31. rolling and pulling the cylinder; 311. a groove; 32. a bump; 321. an avoidance groove; 4. a first plate body; 41. a first screw; 42. a first clamping member; 421. a guide bar; 422. accommodating grooves; 5. a second plate body; 51. a second screw; 52. a second clamping member; 6. a second motor; 61. a torque detection assembly; 7. a support; 71. a third motor; 72. a second lead screw; 73. a second nut seat; 74. a guide rail; 741. an installation part; 75. and (7) a placing frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description is made of a power line tension and torque testing machine with adaptive closed-loop precise control according to the present invention with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

Examples

Please refer to fig. 1 to 3, the present application provides a power line tension and torque testing machine with adaptive closed-loop precise control, which includes a support 7, the support 7 is provided with a testing mechanism along the vertical direction in a sliding manner, the support 7 is provided with a sliding component for driving the testing mechanism to slide, one side of the support 7 is further provided with a placing frame 75 for placing a sample, the testing mechanism includes a support member 2, a torsion portion and a sliding portion, the support member 2 is provided with a clamping portion in a rotating manner, wherein:

a clamping part: the clamping part is used for clamping a power cord, and the rotating axis of the clamping part is arranged along the horizontal direction and is overlapped with part of the power cord between the clamping part and the wiring terminal;

a twisting part: the torque detection assembly 61 is arranged between the torsion part and the clamping part;

a sliding part: the clamping device is used for driving the support piece 2 to slide, a tension detection assembly 14 is arranged between the sliding part and the support piece 2, and the sliding direction of the support piece 2 is parallel to the rotation axis of the clamping part.

Referring to fig. 1 and 2, further, two guide rails 74 are bolted to the bracket 7, the guide rails 74 are disposed along a vertical direction, an L-shaped mounting portion 741 is disposed between the two guide rails 74 in the sliding manner, a vertical portion of the mounting portion 741 is slidably engaged with the two guide rails 74, and the mounting portion 741 is used for mounting the testing mechanism. The sliding assembly comprises a second screw rod 72 rotatably erected on the bracket 7, the axis of the second screw rod 72 is arranged along the vertical direction, and a third motor 71 for driving the second screw rod 72 to rotate is further bolted on the bracket 7. The second screw seat 73 is sleeved on the side surface of the second screw 72, the second screw seat 73 is bolted with the mounting part 741, and when the second motor 6 operates, the mounting part 741 and the testing mechanism can be driven to move in the vertical direction. When the test device is used, a sample to be tested needs to be placed on the placing frame 75, and the position of the wiring end of the power line of the sample to be tested and the rotating axis of the clamping part are ensured to be positioned in the same vertical plane. And because the power cord wiring end height of the different samples that await measuring is highly inconsistent, consequently need utilize the subassembly that slides to control accredited testing organization along vertical direction to slide, guarantee the rotation axis of clamping part and the coincidence of the power cord wiring end of the sample that awaits measuring. In addition, because the sizes of the different samples to be tested are different, in this embodiment, the position of the sample to be tested is locked by using an adhesive tape (not shown in the figure) or a quick clamp (not shown in the figure), and after the sample to be tested is placed on the placing frame 75, the position of the sample to be tested should be locked by using the adhesive tape or the quick clamp, so that the sample to be tested is prevented from deviating.

Referring to fig. 2 to 4, specifically, the sliding part includes a base 1, the base 1 is bolted on a mounting part 741, a bottom surface of the base 1 is attached to a horizontal portion of the mounting part 741, two sliding rails 11 are bolted on a top surface of the base 1, and both the two sliding rails 11 are disposed along a horizontal direction. The support member 2 is slidably mounted on the two slide rails 11, and the axes of the two slide rails 11 are parallel to the rotation axis of the clamping portion. The base 1 is further provided with a first screw rod 12 through a rotating frame, the first screw rod 12 is located between the two slide rails 11, and the axis of the first screw rod 12 is parallel to the axis of the slide rails 11. The base 1 is further bolted with a first motor 13 for driving the first screw rod 12 to rotate, and an output shaft of the first motor 13 is connected with the first screw rod 12 through a coupling. The first screw rod 12 is sleeved with a first nut seat 121 on the side surface. The first nut seat 121 is connected with the support 2 through the tension detection component 14, and the first nut seat 121 drives the support 2 to slide through the tension detection component 14. In this embodiment, the tension detecting assembly 14 is an S-shaped tension sensor, one end of the tension detecting assembly 14 is bolted to the first nut seat 121, the other end is bolted to the block 21, and the block 21 is bolted to the bottom surface of the supporting member 2.

Referring to fig. 3 to 5, further, in order to prevent the first screw 12 from rotating and driving the first screw seat 121 to swing, the bottom surface of the supporting member 2 is further provided with a positioning groove 23, a positioning block 122 is integrally formed on the top surface of the first screw seat 121, the positioning block 122 is embedded in the positioning groove 23, and when the first screw 12 rotates, the positioning groove 23 can limit the position of the positioning block 122, thereby preventing the first screw seat 121 from swinging around the axis of the first screw 12.

Referring to fig. 3, further, a mounting block 22 is bolted to the top surface of the supporting member 2, the mounting block 22 is provided with a through hole, and an axis of the through hole is parallel to an axis of the first lead screw 12. The clamping part comprises a cylindrical body 3, and the body 3 penetrates through the through hole and is in running fit with the side wall of the through hole. One end of the body 3 is connected with the torsion part through the torsion detection assembly, and the other end is provided with a clamping piece for clamping a power line.

Referring to fig. 3, 4 and 6, in detail, a winding portion is bolted to an end of the body 3 opposite to the torsion detecting assembly, the clamping member is bolted to an end of the winding portion opposite to the body 3, the clamping member includes a first plate 4 and a second plate 5 bolted to the winding portion, the first plate 4 and the second plate 5 are parallel to each other, and a first clamping member 42 and a second clamping member 52 are disposed on sides of the first plate 4 and the second plate 5 facing each other. The first clamping piece 42 is in sliding fit with the first plate body 4, the second clamping piece 52 is in sliding fit with the second plate body 5, the side faces of the first plate body 4 and the second plate body 5 facing each other are provided with a containing groove 422 for clamping a power line, and the containing groove 422 penetrates through the first clamping piece 42 or the second clamping piece 52 along the axis direction of the body 3. Two guide rods 421 are welded to the first clamping piece 42 and the second clamping piece 52, and the axis of the guide rod 421 on the first clamping piece 42 is parallel to the axis of the guide rod 421 on the second clamping piece 52. The guide rod 421 of the first clamping member 42 passes through the first plate 4 and is slidably engaged with the first plate 4. The guide bar 421 of the second clamping member 52 passes through the second plate 5 and is slidably engaged with the second plate 5.

Referring to fig. 3, 4 and 6, further, the cross-section of the accommodating groove 422 is triangular. The power cord passes through the two accommodating grooves 422, and after being clamped by the two accommodating grooves 422, the clamped part of the power cord is overlapped with the axis of the body 3. When the power line is embedded between the two accommodating grooves 422, two line contact positions are arranged between the power line and the groove wall of each accommodating groove 422, so that the stability of the power supply when being clamped is ensured, and the accommodating grooves 422 can be used for clamping power lines with different diameters.

Referring to fig. 3, 4 and 6, a driving member for driving the first clamping member 42 and the second clamping member 52 to slide is further disposed on the winding portion, the driving member includes a first screw 41 passing through the first plate 4 and a second screw 51 passing through the second plate 5, the first screw 41 is in threaded fit with the first plate 4, and the second screw 51 is in threaded fit with the second plate 5. The axis of the first screw 41 coincides with the axis of the second screw 51. The end of the first screw rod 41 close to the first clamping piece 42 is inserted into the first clamping piece 42, the side surface of the first screw rod 41 is provided with an annular first limiting groove, the first clamping piece 42 is further bolted with a first baffle, and the first baffle is embedded into the first limiting groove, so that the first clamping piece 42 is prevented from being separated from the first screw rod 41. Referring to the matching relationship between the first screw 41 and the first clamping member 42, one end of the second screw 51 close to the second clamping member 52 is also inserted into the second clamping member 52, and an annular second limiting groove is formed in a side surface of the second screw 51, a second baffle is bolted to the second clamping member 52, and the second baffle is embedded into the second limiting groove, so that the second clamping member 52 is prevented from being separated from the second screw 51. In this embodiment, a quincunx handle is further sleeved at one end of the first screw rod 41 and the second screw rod 51, and the first screw rod 41 and the second screw rod 51 can be conveniently rotated by using the handle.

Referring to fig. 3, 4 and 6, the winding portion includes a winding drum 31, an axis of the winding drum 31 coincides with an axis of the body 3, six grooves 311 are formed at edges of two ends of the winding drum 31, the six grooves 311 are uniformly arranged along a circumferential direction of the winding drum 31, a groove width of each groove 311 is sequentially increased, a cylindrical protrusion 32 is further integrally formed at one side of the winding drum 31 close to the clamping member, the first plate 4 and the second plate 5 are both mounted on the protrusion 32, and an avoiding groove 321 is further formed at a position of the protrusion 32 close to the clamping member, so that the clamped power cord extends out through the avoiding groove 321 and is wound on the winding drum 31, and the power cord can be embedded into one groove 311 to prevent the power cord from falling off the winding drum 31. The grooves 311 with different groove widths are provided mainly for adapting to power lines with different diameters, so that the power lines with different diameters are embedded into the grooves 311 with similar groove widths. If the power line passing through the accommodating groove 422 is too long, the power line can be wound on the winding and pulling barrel 31 and embedded into the groove 311, so that the power line is prevented from falling off from the winding and pulling barrel 31. The power line passing through the accommodating groove 422 is wound on the winding drum 31, so that the power line can be prevented from naturally sagging after passing through the accommodating groove 422 to interfere the operation of the testing mechanism.

Referring to fig. 3 and 4, in particular, the torsion portion includes a second motor 6 for driving the clamping portion to rotate, the second motor 6 is bolted to the top surface of the supporting member 2, and an axis of an output shaft of the second motor 6 coincides with an axis of the body 3. Torque detection subassembly 61 sets up between second motor 6 and the portion of twisting, and torque detection subassembly 61 is the torque sensor of bolt connection at 2 top surfaces of support piece, and the output shaft of shaft coupling and second motor 6 is passed through to torque sensor's one end, and torque sensor's the other end passes through the shaft coupling to be connected with body 3, and when second motor 6 moved, it rotated through driving torque sensor, and then driven body 3 and rotated.

The working principle is as follows:

when the device is used for detecting the tensile and torsional capacities of the power line terminal, a sample to be detected is firstly placed on the placing frame 75, and the position of the sample to be detected is locked. And then, the height of the testing mechanism is adjusted by using the sliding assembly, so that the terminal of the sample power cord is coincided with the rotation axis of the clamping part. The power cord of the electrical product to be detected is embedded between the two accommodating grooves 422 by the detecting personnel, then the power cord is clamped by the first clamping piece 42 and the second clamping piece 52, and the power cord passing through the clamping part is wound on the winding and pulling barrel 31. Starting the testing machine, firstly, the sliding part drives the supporting piece 2 and the clamping part to slide, so that a power line is drawn, 25 times of pulling force is applied to the power line, and meanwhile, the S-shaped tension sensor monitors the pulling force borne by the wiring end of the power line, so that the stability of the pulling force borne by the power line is ensured; the torsion portion drives the clamping portion to rotate afterwards, and the moment of torsion is applyed to the power cord, utilizes torque sensor monitoring power cord to receive the moment of torsion simultaneously, guarantees that the moment of torsion that the power cord received is stable. In the test process, only need the testing personnel to press from both sides the power cord tightly to utilize the height of subassembly adjustment accredited testing organization that slides, can directly utilize this equipment to exert pulling force and moment of torsion to the power cord and test, operation process is simple, convenient to use.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a power cord pulling force, the torque test machine of self-adaptation closed loop accurate control which characterized in that: including the support, the support slides along vertical direction and is equipped with accredited testing organization, the support is equipped with and is used for ordering about the subassembly that slides that accredited testing organization slides, support one side still is equipped with the frame of putting that is used for putting the sample, accredited testing organization includes support piece, torsion portion and the portion of sliding, the last rotation of support piece is equipped with the clamping part, wherein:

a clamping part: the rotating axis of the clamping part is superposed with the part of the power cord between the clamping part and the wiring terminal;

a twisting part: the torque detection assembly is arranged between the torsion part and the clamping part;

a sliding part: the clamping part is used for clamping the supporting piece, and the clamping part is used for clamping the supporting piece.

2. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 1, characterized in that: the clamping part comprises a body, the body is provided with a first clamping part and a second clamping part in a sliding mode, the sliding direction of the first clamping part is parallel to that of the second clamping part, the body is provided with a driving part used for driving the first clamping part and the second clamping part to mutually face in a sliding mode, the driving part comprises a first screw rod and a second screw rod which are in threaded fit with the body, the first screw rod is in running fit with the first clamping part, and the second screw rod is in running fit with the second clamping part.

3. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 2, characterized in that: the side that first holder and second holder faced each other offers the holding tank that is used for centre gripping power cord, two the holding tank is parallel to each other.

4. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 3, characterized in that: the cross-section of holding tank is triangle-shaped.

5. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 3, characterized in that: when the power cord is clamped between the two accommodating grooves, the clamped power cord is overlapped with the rotation axis of the clamping part.

6. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 3, characterized in that: the body is further provided with a winding part, the winding part is provided with a groove, and a power line penetrating through the accommodating groove is embedded into the groove.

7. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 6, wherein: the groove is provided with a plurality of grooves, and the groove width of each groove is inconsistent.

8. The power line tension and torque testing machine with adaptive closed-loop precise control as claimed in claim 1, characterized in that: the sliding portion comprises a base, the base is provided with a first lead screw, the base is further provided with a motor used for driving the first lead screw, the first lead screw is in threaded connection with a first screw seat, the supporting piece is arranged on the base in a sliding mode, the first screw seat is connected with the supporting piece through the tension detection assembly, and the first screw seat is driven by the tension detection assembly to slide.

9. The adaptive closed-loop accurate control power line tension and torque testing machine of claim 8, wherein: the torsion portion is including being used for the drive clamping part pivoted second motor, the second motor sets up support piece is last, the moment of torsion determine module sets up the second motor with between the torsion portion, the second motor passes through the moment of torsion determine module drives the clamping part rotates.

10. The adaptive closed-loop precise-control power line tension and torque testing machine according to claim 1, characterized in that: the subassembly that slides include with support normal running fit's second lead screw and be used for the drive second lead screw pivoted third motor, the axis of second lead screw sets up along vertical direction, second lead screw threaded connection has the second screw seat, the second screw seat with accredited testing organization connects.

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