CN111470378A - Wire stretcher comprehensive protection method and comprehensive protection device - Google Patents
Wire stretcher comprehensive protection method and comprehensive protection device Download PDFInfo
- Publication number
- CN111470378A CN111470378A CN202010142366.8A CN202010142366A CN111470378A CN 111470378 A CN111470378 A CN 111470378A CN 202010142366 A CN202010142366 A CN 202010142366A CN 111470378 A CN111470378 A CN 111470378A
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- China
- Prior art keywords
- wire stretcher
- wire
- stretcher
- displacement
- comprehensive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 230000001012 protector Effects 0.000 claims description 13
- 238000001338 self-assembly Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000005491 wire drawing Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention provides a comprehensive protection method and a comprehensive protection device for a wire stretcher, wherein fixing and tension protection are integrated into a whole, the contact part of the wire stretcher, a wire box and a wall body is used as a supporting point for counteracting the reaction force of the wire stretcher, the displacement size and the displacement direction in the operation process of the wire stretcher are restrained, and the work state of the wire stretcher is controlled by the restrained displacement or displacement process; the structure of the device consists of a sleeve, a positioning component, an elastic component, a distance adjusting component and a control switch; the advantages are that: simplify the wire stretcher structure, reduce the wire stretcher operation content, improve the wire stretcher operating efficiency.
Description
Technical Field
The invention provides a wire stretcher comprehensive protection method and a wire stretcher comprehensive protection device, and belongs to the field of engineering wiring wire stretchers.
Background
The balance frame is required to offset the reaction force received by the wire drawing machine during the operation of the existing wire drawing machine, but the height adjusted by the balance frame is not always consistent relative to the height of the wire box, the reaction force received by the wire drawing machine during the operation is easy to displace, and the direction and the size of the displacement can not be determined, so that the displacement protection device is required to overcome the defect during the operation of the wire drawing machine; meanwhile, when the wire stretcher works, the tensile force output by the wire stretcher is increased due to the deformation of a pipeline, foreign matters in the pipeline or the lengthening of a traction wire, the reaction force borne by the wire stretcher is also increased synchronously, if the increase of the tensile force output by the wire stretcher is not limited, the reaction force borne by the wire stretcher is also increased without limitation, and as a result, the wire stretcher or the wire stretcher for working is damaged, so that the tensile force output by the wire stretcher needs to be limited and protected by a balancing rod or a tensile force protection device; as a result, the wire drawing machine has complex structure and complex operation, which is not beneficial to the use and popularization of the wire drawing machine.
Disclosure of Invention
The invention provides a comprehensive protection method and a comprehensive protection device for a wire stretcher, wherein fixing and tension protection are integrated into a whole, the contact part of the wire stretcher, a wire box and a wall body is used as a supporting point for counteracting the reaction force of the wire stretcher, the displacement size and the displacement direction in the operation process of the wire stretcher are restrained, and the work state of the wire stretcher is controlled by the restrained displacement or displacement process; the structure of the wire stretcher comprises a sleeve, a positioning assembly, an elastic part, a distance adjusting assembly and a control switch, wherein the sleeve is used for adjusting the height, the positioning assembly is used for fixing the comprehensive protection device of the wire stretcher, the elastic part is a main component for restraining the displacement size and the direction of the wire stretcher, the part of the elastic part, which is in contact with the wire box and the wall body, is a supporting point for counteracting the reaction force of the wire stretcher, and the deformation or the deformation process of the elastic part is used as a trigger signal for controlling the working state of the switch to be changed.
The technical scheme is as follows:
the invention is composed of a sleeve, a positioning component, an elastic component, a distance adjusting component and a control switch, wherein the sleeve is provided with rectangular holes which are symmetrically distributed on two sides of the sleeve, and the surface of each hole is in a sawtooth shape; the positioning assembly comprises a screw, an anti-skid block and a nut, one side of the screw, which is in contact with the sleeve, is in a sawtooth shape, the other side of the screw is provided with threads, one side of the anti-skid block, which is in contact with the sleeve, is in a sawtooth shape, and the sawtooth structures of the sleeve, the screw and the anti-skid block are mutually meshed in a screwed state of the nut, so that the relative displacement of the sleeve, the screw and the anti-skid block is; the elastic piece is U-shaped, two sides of the elastic piece are parallel and have different lengths, the longer side of the elastic piece is fixed on the sleeve, the top end of the shorter side of the elastic piece is provided with a stress component, the stress component is provided with two surfaces, one surface is a horizontal plane, and the other surface is vertical to the horizontal plane; the distance adjusting device and the control switch are respectively fixed on two sides of the U-shaped elastic part, the distance adjusting device is composed of a nut column, a locking nut and a push rod, one end of the push rod is provided with a top plate, the other end of the push rod is provided with threads, the push rod and the nut column are screwed in the nut column, and the locking nut locks the push rod and the nut column to prevent the top plate of the push rod from changing relative to the control switch due to the looseness of the push rod; the control switch comprises first micro-gap switch, the second micro-gap switch, third micro-gap switch and button switch, wherein, first micro-gap switch, second micro-gap switch and third micro-gap switch are established ties, first micro-gap switch and second micro-gap switch are normally closed switch, the third micro-gap switch is normally open switch, the button switch normality is off-state and connects in parallel with the second micro-gap switch in groups, under the circumstances that U-shaped elastic component does not receive the force, the third micro-gap switch receives the roof pressure of roll adjustment device ejector pin to be on-state, at this moment, the micro-gap switch of three series connection is on-state.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a circuit schematic of the control switch of the present invention;
FIG. 4 is a schematic diagram of the operation of the present invention;
FIG. 5 is a schematic diagram of the operation of the present invention;
FIG. 6 is a schematic diagram of the operation of the present invention.
Detailed Description
Referring to the attached drawings 1-6, the invention is composed of a sleeve 1, a U-shaped elastic part 2, a screw 3, an antiskid block 4, a nut 5, a pin 6, a first microswitch 7, a second microswitch 8, a third microswitch 9, a mandril 10, a locking nut 11, a nut column 12, a control switch fixing sheet 13 and a button switch 14, wherein O is the deformation center of the elastic part.
When the wire stretcher is used, the sleeve is sleeved on the working arm of the wire stretcher, the height of the sleeve is adjusted to enable the horizontal plane of the stress component on the shorter side of the U-shaped elastic piece to be arranged in the wire box and tightly attached to the top of the wire box, the other side perpendicular to the horizontal plane is tightly attached to the wall surface, meanwhile, the rectangular hole in the sleeve is overlapped with the hole in the working arm, the screw penetrates through the other side from one side of the hole, the anti-skid block is installed and locked by the nut, and at the moment, the comprehensive protector of the; in the process, the stress member tightly clings to two faces of the top of the wire box and the wall surface to offset the reaction force received by the wire stretcher, the displacement size and the direction generated during the operation of the wire stretcher are restrained, the length of the rectangular hole in the sleeve is larger than or equal to the distance between two adjacent holes in the working arm, at least the sleeve coincides with one hole in the working arm when the sleeve is in any position on the working arm of the wire stretcher, the comprehensive protector of the wire stretcher can be fixed at any height position on the working arm of the wire stretcher, the consistency between the comprehensive protector of the wire stretcher and the height position of the wire box is realized, the rectangular hole, the saw-toothed structures of the screw rod and the antiskid block increase the friction force between contact surfaces, and the comprehensive protector of the wire stretcher is not easy. The first microswitch, the second microswitch and the third microswitch are arranged on the control switch fixing sheet, three microswitch contact handles are provided with contact blocks, the size of the contact block on the first microswitch contact handle is smaller than that of the contact block on the second microswitch contact handle, the size of the contact block on the second microswitch contact handle is smaller than that of the contact block on the third microswitch contact handle, namely, the distance between the contact block on the first microswitch contact handle and the top sheet is larger than that between the contact block on the second microswitch contact handle and the top sheet, the distance between the contact block on the second microswitch contact handle and the top sheet is larger than that between the contact block on the third microswitch contact handle and the top sheet, the third microswitch is pressed by the top sheet on the ejector rod under the condition that the U-shaped elastic part is not stressed and elastically deformed, the first microswitch and the second microswitch are not pressed by the top sheet on the ejector rod into a closed state, and the control switch consisting of the three microswitches is in a conduction state, the distances between the contact blocks on the microswitch contact handles and the top plate are preset; if the U-shaped elastic part is stressed, the U-shaped elastic part deforms by taking the point O as the center, the distance between two sides of the U-shaped elastic part changes, the distance between the top plate and the contact block changes, when one side of the U-shaped elastic part stressed by the U-shaped elastic part deforms outwards, the distance between two sides of the U-shaped elastic part increases, the distance between the top plate and the contact block of the third microswitch increases until the third microswitch is not pressed by the top plate, the third microswitch is changed from a closed state to an open state, and the state of the control switch is an open state; when the U-shaped elastic part is stressed to deform and one side of the stress component of the U-shaped elastic part is close to the other side, the distance between the two sides of the U-shaped elastic part is reduced, the distance between the top plate and the second microswitch contact block is reduced until the second microswitch is pressed by the top plate and is changed from a closed state to an open state, and the state of the control switch is an open state; when the wire drawing machine actually works, because the pipeline is deformed, foreign matters or a drawing wire in the pipeline is lengthened, the wire drawing machine can output larger pulling force to finish wire drawing operation, but the pulling force of the wire drawing machine cannot be infinitely increased, the set pulling force protection value of the second microswitch cannot meet the operation requirement of the wire drawing machine, at the moment, the button switch is operated to be changed into a closed state, when the U-shaped elastic part is stressed and deformed, and one side of a stress component of the U-shaped elastic part is closed to the other side, the distance between the two sides of the U-shaped elastic part is reduced, the distance between the top sheet and a contact block of the second microswitch is reduced until the second microswitch is pressed by the top sheet and is changed into an open state, but the button switch connected with the second microswitch in parallel is in a closed state, the control circuit is in a conducting state, the working state of the wire drawing machine is only controlled by the first microswitch, if the first microswitch works to cut off the control circuit, the wire stretcher needs to output larger pulling force. Based on the above, if the tensile force protection value of the wire stretcher is subdivided or changed, the number of the micro switches and the button switches in the parallel connection grouping state is increased or reduced; in the actual operation process of the wire drawing machine, in order to offset the mechanical fatigue of the U-shaped elastic part and adapt to the difference of the wire diameters of the wires during the operation of the wire drawing machine, the distance between the top plate and the microswitch is changed through the distance adjusting device, the tension protection value of the wire drawing machine is changed, the service life of the comprehensive protector of the wire drawing machine is prolonged, and the operation requirement of the wire drawing machine is met; meanwhile, the distance between the top plate and the micro switches is changed through the distance adjusting device, the set tension protection values of all the micro switches are changed, the consistency of increasing or decreasing the tension protection values is realized, and the phenomenon that a certain micro switch loses the tension protection effect is avoided.
Wire stretcher is when the operation, fixes wire stretcher integrated protection ware, the main strong point that wire stretcher offset reaction force is the contact site of atress component and line box and wall body, no matter the pipeline is vertical or level in the line box, the atress component can both offset partly reaction force for the wire stretcher, the wire stretcher receives the effect of reaction force and can take place the displacement in the certain extent, U-shaped elastic component takes place the displacement because of the wire stretcher takes place and takes place deformation, the reaction force that the wire stretcher received is big more, the deformation volume of U-shaped elastic component is also big more. When the direction of the pipeline in the wire box is vertical upward, the direction of the reaction force borne by the wire stretcher is oblique upward, the supporting point of the wire stretcher for counteracting the reaction force is a stressed component, according to the parallelogram rule, the reaction force is decomposed into two forces of vertical upward and horizontal direction to the wall surface, the vertical upward force is far greater than the horizontal direction to the wall surface, the U-shaped elastic part of the wire stretcher comprehensive protector is deformed under the action of the vertical upward force, the other side of the U-shaped elastic part moves leftwards and upwards relative to one side of the stressed component, the distance between two sides of the U-shaped elastic part is increased, if the pulling force output by the wire stretcher is continuously increased, the reaction force received by the wire stretcher is synchronously increased, the deformation quantity of the U-shaped elastic part is increased, when the distance is increased to a set value, the third microswitch is not stressed by the top plate and is changed into a microswitch disconnected state, the control circuit of the, stopping the wire stretcher; when the pipeline in the wire box is in a vertical downward direction, the reaction force borne by the wire stretcher is in an oblique downward direction, the supporting point of the wire stretcher for counteracting the reaction force is the ground and the stressed component, according to the parallelogram rule, the reaction force is decomposed into two forces which are vertically downward and horizontally directed to the wall surface, the vertical downward force is far larger than the horizontally directed force to the wall surface, the vertical downward force is counteracted by the ground, the horizontally directed force to the wall surface is counteracted by the stressed component, the U-shaped elastic part is deformed under the action of the horizontally directed force to the wall surface, the other side of the U-shaped elastic part is closed to one side of the stressed component, the distance between the two sides is reduced, if the pulling force output by the wire stretcher is continuously increased, the reaction force borne by the wire stretcher is synchronously increased, the deformation of the U-shaped elastic part is increased, when the distance is reduced to a set value, the second microswitch is converted from a closed state into an open state under the, stopping the wire stretcher; when the direction of the pipeline in the wire box is horizontal, the button switch is operated to change the state from the off state to the on state, the second microswitch loses the effect of cutting off the control circuit, the direction of the reaction force applied to the wire stretcher is inclined upwards, the supporting point of the wire stretcher for counteracting the reaction force is a stressed component, according to the parallelogram rule, the reaction force is decomposed into two forces which are vertically upwards and horizontally directed to the wall surface, the force horizontally directed to the wall surface is far greater than the force vertically upwards, the U-shaped elastic part is deformed under the effect of the force horizontally directed to the wall surface, the other side of the U-shaped elastic part is close to one side of the stressed component, the distance between the two sides is reduced, if the pulling force output by the wire stretcher is continuously increased, the reaction force received by the wire stretcher is synchronously increased, the deformation of the U-shaped elastic part is increased, when the distance is reduced to a set value, the, the first microswitch cuts off the control circuit of the wire drawing machine, and the wire drawing machine stops working.
The second and third sections have been described in detail by way of specific examples, and the description of the second and third sections will not be repeated.
Claims (8)
1. A wire stretcher comprehensive protection method and a wire stretcher comprehensive protection device integrate the fixation of a wire stretcher and the tension protection of the wire stretcher, and the contact part of the wire stretcher, a wire box and a wall body is used as a supporting point for counteracting the reaction force of the wire stretcher, so as to restrain the displacement size and direction of the wire stretcher in the operation process, and the work state of the wire stretcher is controlled by the restrained displacement or displacement process; the structure of the device consists of a sleeve, a positioning component, an elastic component, a distance adjusting component and a control switch.
2. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the supporting point of the wire stretcher for counteracting the reaction force is the contact part of the wire stretcher with the wire box and the wall body, the self assembly of the wire stretcher contacting with the wire box and the wall body has elasticity, and the self assembly of the wire stretcher contacting with the wire box and the wall body can deform in the process of constraining the displacement of the wire stretcher, and the deformation process or the deformation result is a signal for controlling the working state of the wire stretcher.
3. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the length of the rectangular hole on the sleeve is matched with the distance between the two holes on the working arm of the wire stretcher, and the length of the rectangular hole on the sleeve is greater than or equal to the distance between the two holes on the working arm of the wire stretcher.
4. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the two sides of the U-shaped elastic member are not limited to being parallel, the two sides are not limited to being different in length, and the shape is not limited to the U shape.
5. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the number of the micro switches and the push button switches included in the control switch is not limited to the number described in claim 1.
6. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the kind of composition of the control switch is not limited to the microswitch.
7. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the installation position of the control switch is not limited to one side of the U-shaped elastic member.
8. The wire stretcher comprehensive protector as claimed in claim 1, wherein: the pitch adjustment device may or may not be present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142366.8A CN111470378A (en) | 2020-03-02 | 2020-03-02 | Wire stretcher comprehensive protection method and comprehensive protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142366.8A CN111470378A (en) | 2020-03-02 | 2020-03-02 | Wire stretcher comprehensive protection method and comprehensive protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111470378A true CN111470378A (en) | 2020-07-31 |
Family
ID=71747190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010142366.8A Pending CN111470378A (en) | 2020-03-02 | 2020-03-02 | Wire stretcher comprehensive protection method and comprehensive protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111470378A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022634A (en) * | 1987-03-23 | 1991-06-11 | British Telecommunications Public Limited Company | Optical fibre installation |
| CN101151565A (en) * | 2005-03-31 | 2008-03-26 | 英国电讯有限公司 | Fiber Installation Equipment |
| CN201118279Y (en) * | 2007-08-07 | 2008-09-17 | 李乾伟 | Electric power line wire breaking protecting multilevel switch device |
| CN204741229U (en) * | 2015-05-19 | 2015-11-04 | 张冬 | Wire stretcher |
| CN205076537U (en) * | 2015-09-09 | 2016-03-09 | 福建瑞创电力建设有限公司 | Trailing cable laying pay -off of unmanned aerial vehicle |
| CN105958389A (en) * | 2016-06-21 | 2016-09-21 | 张冬 | Wire drawing machine |
| CN106144772A (en) * | 2016-06-21 | 2016-11-23 | 张冬 | Drawing machine controls the method and device of outlet |
| CN106629249A (en) * | 2017-02-12 | 2017-05-10 | 张冬 | Displacement protection device |
-
2020
- 2020-03-02 CN CN202010142366.8A patent/CN111470378A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022634A (en) * | 1987-03-23 | 1991-06-11 | British Telecommunications Public Limited Company | Optical fibre installation |
| CN101151565A (en) * | 2005-03-31 | 2008-03-26 | 英国电讯有限公司 | Fiber Installation Equipment |
| CN201118279Y (en) * | 2007-08-07 | 2008-09-17 | 李乾伟 | Electric power line wire breaking protecting multilevel switch device |
| CN204741229U (en) * | 2015-05-19 | 2015-11-04 | 张冬 | Wire stretcher |
| CN205076537U (en) * | 2015-09-09 | 2016-03-09 | 福建瑞创电力建设有限公司 | Trailing cable laying pay -off of unmanned aerial vehicle |
| CN105958389A (en) * | 2016-06-21 | 2016-09-21 | 张冬 | Wire drawing machine |
| CN106144772A (en) * | 2016-06-21 | 2016-11-23 | 张冬 | Drawing machine controls the method and device of outlet |
| CN106629249A (en) * | 2017-02-12 | 2017-05-10 | 张冬 | Displacement protection device |
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Application publication date: 20200731 |