CN111928984A

CN111928984A - Plum blossom contact tensioning pressure measurement ware

Info

Publication number: CN111928984A
Application number: CN202010473323.8A
Authority: CN
Inventors: 李昀泽
Original assignee: Langfang Yanling Technology Co ltd
Current assignee: Langfang Yiyan Lingchuang Technology Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-11-13

Abstract

The invention discloses a plum blossom contact tensioning pressure measurer, belonging to the technical field of measuring instruments, comprising a radial moving device, a tensioning measuring device and an auxiliary positioning device, the tension measuring device is arranged on the front wall of the outer side of the radial moving device, the tension measuring device is fixedly connected with the radial moving device through a bolt, the radial moving device is fixed on the front wall of the auxiliary positioning device through a bolt, and the measurement is only in error due to uneven stress of the pressure contact when the plum blossom contact is measured in the prior art, the radial moving device is provided with four tensioning contacts, the four tensioning contacts can uniformly and radially move, and the auxiliary positioning device is arranged to help position the circle center of the plum blossom contact to be measured and fix the tensioning measuring device, so that when the four tensioning contacts are inserted into the plum blossom contact, errors caused by uneven stress of the four tensioning contacts due to the action of gravity can be avoided.

Description

Plum blossom contact tensioning pressure measurement ware

Technical Field

The invention relates to the technical field of measuring instruments, in particular to a plum blossom contact tensioning pressure measurer.

Background

In the operation maintenance work of daily cubical switchboard, the quality of plum blossom contact is good bad and has the effect of putting the weight on the safe and reliable operation of cubical switchboard, and the contact pressure between each contact finger and the contact conductor in the plum blossom contact is provided through a plurality of trade line spring, if plum blossom contact ring spring pressure is not enough, can lead to plum blossom contact finger and ring spring to generate heat and arouse the inhomogeneous distribution of contact pressure on each contact easily, will cause contact finger local overheat of contact failure, lead to the ring spring that the contact finger is outside to appear tired soft because of heating annealing. The fatigue annular spring enables the contact pressure between the contact finger and the contact to be continuously reduced, the contact state becomes worse, the heating is enabled to be more serious, the annular spring is further annealed, a vicious circle is entered, the annular spring is possibly developed into an overheat state, the insulation damage is caused, the arc discharge is caused to burn the switch cabinet, and therefore the regular detection on the plum blossom contact is needed.

The prior art discloses a plurality of plum blossom contact pressure measuring devices, and a utility model with the publication number of CN208238989U discloses a plum blossom contact clamping force detector, a movable seat comprises a disc structure and a clamping force measuring device arranged on one side of the disc structure, and with the semi-cylindrical structure of the coaxial setting of disc structure, the up end of semi-cylindrical structure is the horizontal plane and has seted up the draw-in groove on this horizontal plane, the lower terminal surface of movable cover has also seted up the draw-in groove for the horizontal plane and on this horizontal plane, S type draws pressure sensor ' S lower extreme to inlay and adorn in the draw-in groove of sliding seat and with the help of locking bolt and sliding seat fixed connection, S type draws pressure sensor ' S upper end to inlay and adorn in the draw-in groove of movable cover and with the help of locking bolt and sliding cover fixed connection, leave the free gap between movable cover and the sliding seat, leave the gap between movable cover and the disc structure, S type draws pressure sensor ' S connecting wire to pass behind the sliding seat and. The S-shaped pull pressure sensor is balanced in stress, reduces measurement errors, can obtain more accurate measurement results finally, is simple in structure and convenient to use, but cannot ensure that the measuring instrument is coaxial with the plum blossom contact when inserted into the plum blossom contact, and some errors may be generated.

In the existing detection device, a pressure probe of a sensor is fixed in a clamp, the pressure probe is inserted into a plum blossom contact during measurement, and the measurement result has errors due to unbalanced stress of the pressure probe.

Disclosure of Invention

The invention aims to provide a plum blossom contact tensioning pressure measurer to solve the technical problem that a measuring result is only in error due to uneven stress of a pressure probe when a plum blossom contact is measured in the prior art.

The invention provides a plum blossom contact tensioning pressure measurer which comprises a radial moving device, a tensioning measuring device and an auxiliary positioning device, wherein the tensioning measuring device is arranged on the front wall of the outer side of the radial moving device, the tensioning measuring device is fixedly connected with the radial moving device through a bolt, and the radial moving device is fixed on the front wall of the auxiliary positioning device through a bolt; the tension measuring device comprises four sensor support frames, four torsion beam sensors and four tension contacts, the four sensor support frames are fixedly connected with the front wall of the radial moving device, the rear ends of the four torsion beam sensors are respectively fixedly connected with the four sensor support frames through bolts, and the front ends of the four torsion beam sensors are fixedly connected with the four tension contacts.

Further, the radial moving device comprises a laser transmitter, a cam disc, a speed reducing motor, a shell, a rear plate, four radial sliding rails, four tappets and two supporting columns, the shell is of an annular structure, four sliding rail grooves are formed in the front side of the shell, the two supporting columns are arranged on the rear side wall of the shell, the supporting columns extend backwards and are connected with the rear plate finally, the speed reducing motor is arranged on the front wall of the rear plate, the speed reducing motor is fixedly connected with the rear plate through bolts, the cam disc is arranged in the shell, four guide rails are arranged on the cam disc, the rear portion of the cam disc is connected with a main shaft of the speed reducing motor, the cam disc is rotated through the work of the speed reducing motor, the four tappets are respectively arranged in the four guide rails of the cam disc, the four radial sliding rails are respectively arranged in the four sliding rail grooves and are in clamping fit with, when the speed reducing motor works to drive the cam disc to rotate, the radial slide rail is limited by the slide rail groove, and the tappet connected with the radial slide rail is limited by the guide rail in the cam disc, so that the radial slide rail radially moves along the slide rail groove in the shell.

And the four sensor support frames are respectively fixedly connected with the four radial slide rails through bolts, and the four sensor support frames are driven to simultaneously move radially through the simultaneous radial movement of the four radial slide rails.

Further, the laser emitter is arranged on the center of a circle of the outer side wall of the cam plate, and the laser emitter is coaxial with the cam plate.

Further, auxiliary positioning device includes bottom plate, backup pad, lead screw slip table, movable plate, gear, gim peg, four landing legs, the slider and the radial movement device fixed connection of lead screw slip table, the movable plate sets up at lead screw slip table rear side, and the inside gear groove that is equipped with of movable plate, and the gear setting is in the gear groove, the movable plate is run through to the backup pad, and is equipped with the rack in the middle part of the backup pad, with the inside gear cooperation of movable plate, the motion of the steerable movable plate of running gear in the backup pad, the bottom plate sets up in the backup pad bottom, and the bottom plate upside is equipped with the track, can make the backup.

Furthermore, a fixing bolt is further arranged on the left side wall of the supporting plate.

Furthermore, three anchor ears are arranged at four corners of the bottom plate respectively, and the four support legs are fixedly arranged at the four corners of the bottom plate respectively through the three anchor ears.

Further, the movable plate is fixedly connected with the screw rod sliding table through bolts, and the bottom plate is fixed with the supporting plate in a clamping fit mode.

Compared with the prior art, the invention has the beneficial effects that:

first, in the present invention, four tension contacts are connected to four torsion beam sensors, respectively. The four torsion beam sensors are fixedly connected with the four radial sliding rails through the four sensor support frames, and the four radial sliding rails move radially during working to drive the four tensioning contacts to move radially simultaneously, and the four tensioning contacts are contacted with the inner wall of the plum blossom contact to be measured and receive pressure simultaneously, so that the measuring accuracy is improved.

Secondly, the auxiliary positioning device is arranged, and the radial moving device can move through the auxiliary positioning device, so that the laser emitted by the laser emitter can be aligned with the circle center of the plum blossom-shaped contact to be detected conveniently.

Thirdly, in order to ensure that the radial moving device is in a horizontal state in the calibration process, the four corners of the bottom plate are respectively provided with three hoops, the four supporting legs are respectively fixed on the four corners of the bottom plate through the three hoops, the height of the supporting legs can be adjusted through the hoops to adapt to the ground with various unevenness, and inaccurate detection caused by uneven shaking of the ground in the detection process is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of a radial-motion device according to the present invention;

FIG. 3 is a schematic perspective view of a tension measuring device according to the present invention;

fig. 4 is a schematic perspective view of an auxiliary positioning device according to the present invention.

Reference numerals:

the device comprises a radial moving device 1, a tension measuring device 2, an auxiliary positioning device 3, a sensor support frame 201, a torsion beam sensor 202, a tension contact 203, a laser emitter 101, a cam disc 102, a speed reducing motor 103, a shell 104, a back plate 105, a radial slide rail 106, a tappet 107, a support column 108, a slide rail groove 109, a guide rail 110, a bottom plate 301, a support plate 302, a screw rod sliding table 303, a moving plate 304, a gear 305, a fixed bolt 306, a support leg 307, a hoop 308 and a sliding block 309.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the invention provides a tulip contact tensioning pressure measurer, which includes a radial moving device 1, a tensioning measurement device 2 and an auxiliary positioning device 3, where the tensioning measurement device 2 is disposed on an outer front wall of the radial moving device 1, the tensioning measurement device 2 is fixedly connected with the radial moving device 1 through a bolt, and the radial moving device 1 is fixed on a front wall of the auxiliary positioning device 3 through a bolt.

The radial movement device 1 comprises a laser transmitter 101, a cam disc 102, a speed reducing motor 103, a housing 104, a back plate 105, four radial slide rails 106, four tappets 107 and two support columns 108, wherein the housing 104 is of an annular structure, the front side of the housing 104 is provided with four slide rail grooves 109, the two support columns 108 are arranged on the back side wall of the housing 104, the support columns 108 extend backwards and are connected with the back plate 105 finally, the speed reducing motor 103 is arranged on the front wall of the back plate 105, the speed reducing motor 103 and the back plate 105 are fixedly connected through bolts to provide power for the radial movement device 1, the cam disc 102 is arranged in the inner ring of the housing 104, the cam disc 102 is provided with four guide rails 110, the back part of the cam disc 102 is connected with a spindle of the speed reducing motor 103, the cam disc 102 is rotated through the operation of the speed reducing motor 103, the four tappets 107 are respectively arranged in the four guide rails 110 of the cam disc 102, the four radial slide, and the four radial slide rails 106 are respectively connected with the four tappets 107, when the gear motor 103 operates to drive the cam disc 102 to rotate, as the radial slide rails 106 are limited by the slide rail grooves 109, and the tappets 107 connected with the radial slide rails 106 are limited by the guide rails 110 in the cam disc 102, the radial slide rails 106 move radially along the slide rail grooves 109 in the housing 104, the laser emitter 101 is arranged on the center of the outer side wall of the cam disc 102, and the laser emitter 101 is coaxial with the cam disc 102.

The tension measuring device 2 comprises four sensor support frames 201, four torsion beam sensors 202 and four tension contacts 203, the four sensor support frames 201 are respectively fixedly connected with four radial slide rails 106 through bolts, the rear ends of the four torsion beam sensors 202 are respectively fixedly connected with the four sensor support frames 201 through bolts, the front ends of the four torsion beam sensors 202 are fixedly connected with the four tension contacts 203, the radial motion of the four radial slide rails 106 can drive the sensor support frames 201 to move radially, and the four sensor support frames 201 drive the four tension contacts 203 to move uniformly and radially through the torsion beam sensors 202.

The auxiliary positioning device 3 comprises a bottom plate 301, a support plate 302, a screw rod sliding table 303, a movable plate 304, a gear 305, a fixed bolt 306 and four support legs 307, wherein a sliding block 309 of the screw rod sliding table 303 is fixedly connected with the radial movement device 1, the radial movement device 1 can be driven to move left and right by adjusting the screw rod sliding table 303, the movable plate 304 is arranged at the rear side of the screw rod sliding table 303 and fixedly connected with the screw rod sliding table 303 through bolts, a gear groove is formed in the movable plate 304, the gear 305 is arranged in the gear groove, the support plate 302 penetrates through the movable plate 304, the movable plate 304 can move up and down on the support plate 302, a rack is arranged in the middle of the support plate 302 and is matched with the gear 305 in the movable plate 304, the rotating gear 305 can control the movement of the movable plate 304 on the support plate 302, the fixed bolt 306 is further arranged on the left side, pushing the fixed bolt 306 locks the gear 305, fixes the moving plate 304 to the supporting plate 302, the bottom plate 301 is arranged at the bottom of the support plate 302, the bottom plate 301 and the support plate 302 are fixed in a clamping fit manner, a track is arranged on the upper side of the bottom plate 301, the support plate 302 can be moved on the rail, and to ensure the accuracy of the calibration, the radial direction moving device 1 is required to be kept in a horizontal state at any time, and if the ground is uneven, the bottom plate 301 may be inclined when placed on the ground, or slight shaking occurs, the radial direction moving device 1 connected to the base plate 301 is difficult to be in a horizontal state, and once the radial direction moving device 1 is inclined or slight shaking occurs, not only the difficulty degree of calibration is increased, but also has certain influence on the accuracy of calibration, further causes errors on the measurement of the tulip contact, even after calibration is completed, if the bottom plate 301 shakes during measurement, measurement is accurate; therefore, the four corners of the bottom plate 301 are respectively provided with the three anchor ears 308, the four support legs 307 are respectively fixed on the four corners of the bottom plate 301 through the three anchor ears 308, the height of the support legs 307 can be adjusted through the anchor ears 308 to adapt to various uneven grounds, and inaccurate detection caused by uneven ground shaking during detection is avoided.

The working principle is as follows: when the tulip contact in the switch cabinet is detected, the supporting legs 307 are adjusted through the hoops 308, the bottom plate 301 is in a horizontal state, the laser emitter 101 emits laser, the radial moving device 1 and the tension measuring device 2 are controlled to move left and right through adjusting the screw rod sliding table 303, the rotating gear 305 controls the radial moving device 1 and the tension measuring device 2 to move up and down, the laser moves to the circle center of the tulip contact to be detected, the fixing bolt 306 is pushed to lock the gear 305, the moving plate 304 fixes the position of the radial moving device 1, and calibration is completed;

then, measurement is started, when the laser transmitter 101 is aligned with the center of a circle of the tulip contact to be measured, the tulip contact to be measured and the four tensioning contacts 203 are coaxial, the support plate 302 is pushed to enable the four tensioning contacts 203 to be inserted into the tulip contact to be measured, the total angle of rotation of the speed reduction motor 103 is calculated according to the required opening radial length, the speed reduction motor 103 works, the main shaft of the speed reduction motor 103 drives the cam disc 102 to rotate, the cam structures in the cam disc 102 respectively drive the four tappets 107 to move radially, the four tappets 107 are respectively connected with the four radial sliding rails 106, the four radial sliding rails 106 radially move along the sliding rail grooves 109 in the housing 104, the four radial sliding rails 106 are respectively fixedly connected with the four sensor support frames 201 through bolts, the radial movement of the four radial sliding rails 106 can drive the sensor support frames 201 to move radially, the four sensor support frames 201 drive the four tensioning contacts, the plum blossom contact to be measured is propped open by the uniform radial movement of the four tensioning contacts 203, the tensioning contacts 203 can be subjected to the radial pressure of the plum blossom contact in the radial movement process, the radial pressure can be transmitted to the torsion beam sensor 202, and the tensioning pressure of the plum blossom contact to be measured can be further measured by measuring the torsion beam sensor 202.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The plum blossom contact tensioning pressure measurer is characterized by comprising a radial moving device (1), a tensioning measuring device (2) and an auxiliary positioning device (3), wherein the tensioning measuring device (2) is arranged on the front wall of the outer side of the radial moving device (1), the tensioning measuring device (2) is fixedly connected with the radial moving device (1) through a bolt, and the radial moving device (1) is fixed on the front wall of the auxiliary positioning device (3) through a bolt; the tension measuring device (2) comprises four sensor support frames (201), four torsion beam sensors (202) and four tension contacts (203), the four sensor support frames (201) are fixedly connected with the front wall of the radial moving device (1), the rear ends of the four torsion beam sensors (202) are respectively fixedly connected with the four sensor support frames (201) through bolts, and the front ends of the four torsion beam sensors (202) are fixedly connected with the four tension contacts (203).

2. The tulip contact tensioning pressure measurer according to claim 1, wherein: the radial moving device (1) comprises a laser transmitter (101), a cam disc (102), a speed reducing motor (103), a housing (104), a rear plate (105), four radial sliding rails (106), four tappets (107) and two supporting columns (108), wherein the housing (104) is of an annular structure, four sliding rail grooves (109) are formed in the front side of the housing (104), the two supporting columns (108) are arranged on the rear side wall of the housing (104), the supporting columns (108) extend backwards and are connected with the rear plate (105) at the rearmost part, the speed reducing motor (103) is arranged on the front wall of the rear plate (105), the speed reducing motor (103) is fixedly connected with the rear plate (105) through bolts, the cam disc (102) is arranged on the housing (104), the four guiding rails (110) are arranged on the cam disc (102), the rear part of the cam disc (102) is connected with a main shaft of the speed reducing motor (103), and the cam disc (102) is rotated through the work of, four tappet rods (107) are respectively arranged in four guide rails (110) of a cam plate (102), four radial sliding rails (106) are respectively arranged in four sliding rail grooves (109) and are in clamping fit with the sliding rail grooves (109), four radial sliding rails (106) are respectively connected with the four tappet rods (107), when a speed reducing motor (103) works to drive the cam plate (102) to rotate, the radial sliding rails (106) are limited by the sliding rail grooves (109), the tappet rods (107) connected with the radial sliding rails (106) are limited by the guide rails (110) in the cam plate (102), and the radial sliding rails (106) move radially along the sliding rail grooves (109) in a shell (104).

3. The tulip contact tensioning pressure measurer according to claim 2, wherein: the four sensor support frames (201) are respectively fixedly connected with the four radial sliding rails (106) through bolts, and the four sensor support frames (201) are driven to move radially simultaneously through the simultaneous radial movement of the four radial sliding rails (106).

4. The tulip contact tensioning pressure measurer according to claim 2, wherein: the laser emitter (101) is arranged on the center of a circle of the outer side wall of the cam plate (102), and the laser emitter (101) is coaxial with the cam plate (102).

5. The tulip contact tensioning pressure measurer according to claim 1, wherein: the auxiliary positioning device (3) comprises a bottom plate (301), a support plate (302), a screw rod sliding table (303), a moving plate (304), a gear (305), a fixed bolt (306) and four support legs (307), the slide block (309) of the screw rod sliding table (303) is fixedly connected with the radial moving device (1), the moving plate (304) is arranged at the rear side of the screw rod sliding table (303), and the moving plate (304) is internally provided with a gear groove, the gear (305) is arranged in the gear groove, the support plate (302) penetrates through the moving plate (304), a rack is arranged in the middle of the support plate (302), the rotating gear (305) can control the movement of the moving plate (304) on the supporting plate (302) in cooperation with a gear (305) inside the moving plate (304), the bottom plate (301) is arranged at the bottom of the supporting plate (302), and the upper side of the bottom plate (301) is provided with a rail, so that the support plate (302) can move on the rail.

6. The tulip contact tensioning pressure measurer according to claim 5, wherein: and a fixing bolt (306) is also arranged on the left side wall of the supporting plate (302).

7. The tulip contact tensioning pressure measurer according to claim 5, wherein: the four corners of the bottom plate (301) are respectively provided with three anchor ears (308), and the four support legs (307) are respectively fixedly arranged at the four corners of the bottom plate (301) through the three anchor ears (308).

8. The tulip contact tensioning pressure measurer according to claim 5, wherein: the movable plate (304) is fixedly connected with the screw rod sliding table (303) through bolts, and the bottom plate (301) is fixed with the support plate (302) in a clamping fit mode.