CN109462169B - Handcart switch operation crank and method - Google Patents
Handcart switch operation crank and method Download PDFInfo
- Publication number
- CN109462169B CN109462169B CN201811525954.9A CN201811525954A CN109462169B CN 109462169 B CN109462169 B CN 109462169B CN 201811525954 A CN201811525954 A CN 201811525954A CN 109462169 B CN109462169 B CN 109462169B
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- handcart
- transmission shaft
- top plate
- clamping groove
- crank
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manipulator (AREA)
- Handcart (AREA)
Abstract
The invention relates to a handcart switch operation crank and a method thereof, comprising a main crank handle and a main crank arm which are vertical in the axial direction and have one end fixed; the clamping part is used for connecting a handcart transmission shaft; square clamping grooves penetrating through the clamping device are formed in the clamping device and the clamping device, and the square clamping grooves are used for sleeving a handcart transmission shaft; the square clamping groove is internally provided with a wedge clamp, and the wedge clamp is used for being embedded into a gap between the square clamping groove and the handcart transmission shaft so as to realize the fixed connection of the clamp and the part with the handcart transmission shaft; the wedge card is close to the one end of main crank arm and is equipped with drive arrangement, drive arrangement is used for driving the wedge card and slides in square draw-in groove and can be fixed in the setting position. The invention can solve the problem that the handcart switch is easy to fall off between the operating crank handle and the handcart switch transmission shaft, so that the movement speed of the handcart switch meets the requirement.
Description
Technical Field
The invention belongs to the technical field of power equipment, and particularly relates to a handcart switch operation crank and a handcart switch operation method.
Background
The handcart switch operating crank is an operating tool for swinging the handcart switch from a working position to a test position or vice versa. The national grid company 'safety operation regulations of isolating switches' clearly prescribes that the isolating switches are rapidly opened and closed, and the blades are rapidly separated from the fixed contacts so as to be convenient for arc extinction.
At present, a handcart switch used in each transformer substation operates a crank only by mechanical fit between a square sleeve of the crank and a transmission shaft on the handcart, and the anti-falling function is realized. Frequent falling of the crank also tends to create mental stress for the operator, resulting in prolonged operation time.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a handcart switch operating crank and a handcart switch operating method, which solve the problem that the handcart switch operating crank and a handcart switch transmission shaft are easy to fall off, so that the movement speed of a handcart switch meets the requirements.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the handcart switch operation crank comprises a main crank handle and a main crank arm, wherein the main crank handle is vertical in the axial direction and one end of the main crank handle is fixed; the clamping part is used for connecting a handcart transmission shaft; the clamping part comprises a sleeve, a square clamping groove penetrating through the sleeve is formed in the sleeve, and the square clamping groove is used for sleeving the handcart transmission shaft.
The square clamping groove is used for sleeving the handcart transmission shaft, the input end of the handcart transmission shaft is generally square, the shape of the handcart transmission shaft and the input end of the handcart transmission shaft are close, and the handcart transmission shaft is convenient to clamp and fix.
The square clamping groove is internally provided with a wedge clamp, and the wedge clamp is used for being embedded into a gap between the square clamping groove and the handcart transmission shaft so as to realize the fixed connection of the clamp and the part with the handcart transmission shaft;
the principle of external wedge-shaped piece fixation is utilized, so that the handcart transmission shaft and the square clamping groove can be completely fixed.
The wedge card is close to the one end of main crank arm and is equipped with drive arrangement, drive arrangement is used for driving the wedge card and slides in square draw-in groove and can be fixed in the setting position.
The special driving device is adopted to drive the wedge card to move, so that the quick fixing and separating between the handcart transmission shaft and the square clamping groove can be realized.
Further, a top plate is fixedly arranged at one end of the wedge card, which is close to the crank arm of the main crank, and a driving device is arranged at one end of the top plate, which is far away from the wedge card.
The top plate is fixedly connected with the wedge clamp, the area of the top plate is larger than that of the wedge clamp, and the connection of the driving device can be facilitated.
Further, the driving device comprises a fixing sleeve fixedly arranged in the square clamping groove, and the fixing sleeve is arranged at one end, close to the crank arm of the main crank, of the square clamping groove;
the fixed sleeve is internally provided with a fixed threaded hole, a top shaft is arranged in the fixed threaded hole, the outer circular surface of the top shaft is provided with movable threads, and one end of the top shaft stretches into the square clamping groove and then contacts with the side surface of the top plate, which is away from the wedge clamp;
and a reset device is arranged between the fixed sleeve and the top plate and is used for realizing the movement of the top plate and the wedge close to the fixed sleeve.
The fixed sleeve, the top shaft, the fixed thread and the movable thread are matched to realize the movement of the top shaft along the axis of the top shaft, and power is provided for the wedge clamp to extend into the gap between the square clamping groove and the handcart transmission shaft.
Further, the reset device is a spring, one end of the spring is fixedly connected with the fixed sleeve, and the other end of the spring is fixedly connected with the top plate.
The spring provides power for resetting the wedge, and even if the top plate is not fixedly connected with the top shaft, the wedge can move along with the top shaft towards the reverse direction of the fixed sleeve.
Further, the spring is sleeved outside the top shaft, and the spring is connected with the top plate or the fixing sleeve through a spring fixing hook.
Further, one end of the top shaft which does not extend into the square clamping groove is fixedly connected with one end of the auxiliary crank lever, and the other end of the auxiliary crank lever is fixedly connected with the auxiliary crank handle.
Further, the movable thread is arranged in the middle of the top shaft, and the movable thread is arranged on the outer side face of the top shaft.
A power input method of a handcart switch transmission shaft comprises the following steps:
step 1: the handcart transmission shaft is stretched into the square clamping groove and is contacted with the wedge clamp, the main crank handle is fixed by hand, then the auxiliary crank handle is rotated along the set direction, and the top shaft moves towards the direction of the top plate under the cooperation of the movable thread and the fixed thread;
step 2: the top shaft extrudes the top plate, the top plate extrudes the wedge card, the tip of the wedge card is pressed to move towards the handcart transmission shaft and is embedded into a gap between the handcart transmission shaft and the square clamping groove, and the handcart transmission shaft is fixed with the card and the part; one end of the spring connected with the top plate moves along with the top plate so that the spring is stretched;
step 3: rotating the main crank handle, inputting torque to the handcart transmission shaft by a user by hand, and conveying the handcart switch according to a set direction;
step 4: when the handcart switch moves to a set position, stopping rotating the main crank handle;
step 5: the handle of the crank pair is reversely rotated, the top shaft moves in a direction away from the top plate, the spring has a reset trend, the spring elastic force drives the top plate and the wedge clamp to move in a direction away from the handcart transmission shaft, and the wedge clamp is separated from a gap between the handcart transmission shaft and the square clamping groove;
step 6: the card and the part are separated from the handcart transmission shaft.
The invention has the beneficial effects that:
the special square clamping groove is adopted in the application to sleeve the handcart transmission shaft, the cross section shapes of the special square clamping groove and the handcart transmission shaft are the same, and the handcart transmission shaft can be conveniently driven to move by the device.
The jacking shaft and the fixed sleeve which are in threaded connection can enable the jacking shaft to accurately move along the axial direction by the aid of the rotating pair crank handle, the jacking shaft and the top plate are separated, the top plate can be prevented from rotating along with the jacking shaft, and the restriction of the square clamping groove on the rotation of the top plate is avoided.
The spring is adopted as a reset structure, and the spring provides power for the separation of the wedge clamp and the handcart transmission shaft.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not limit the application.
FIG. 1 is a front view of a schematic overall structure of the present invention;
FIG. 2 is a right side view of the overall structure of the present invention;
FIG. 3 is a left side view of the overall construction of the present invention;
FIG. 4 is a schematic view of the present invention showing the engagement of a fixed thread with a movable thread.
In the figure: 1. a main crank handle; 2. a main crank lever; 3. an auxiliary crank handle; 4. a crank arm of the auxiliary crank; 5. a fixed thread; 6. a top shaft; 7. a movable thread; 8. a spring fixing hook; 9. a spring; 10. a top plate; 11. wedge clip; 12. a sleeve; 13. square clamping groove.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In an exemplary embodiment of the present invention, as shown in fig. 1-4, a handcart switch operation crank comprises a main crank handle 1 and a main crank lever 2 which are vertical in the axial direction and fixed at one end; the end, which is not connected with the main crank handle 1, of the main crank arm 2 is fixedly provided with a clamp and a part which are perpendicular to the axial direction of the main crank arm 2, and the clamp and the part are used for connecting a handcart transmission shaft;
in particular, the axis of the card and the section is horizontal to the axis of the main crank handle 1.
The clamping and part comprises a sleeve 12, a square clamping groove 13 penetrating through the sleeve 12 is formed in the sleeve, a square clamping groove 13 penetrating through the sleeve is formed in the clamping and part, and the square clamping groove 13 is used for sleeving a handcart transmission shaft; the square clamping groove 13 is internally provided with a wedge clamp 11, and the wedge clamp 11 is used for being embedded into a gap between the square clamping groove 13 and the handcart transmission shaft so as to realize the fixed connection of the clamp and the part with the handcart transmission shaft;
specifically, in order to facilitate torque transmission, the input end of the handcart transmission shaft is square, and the cross-sectional area of the square clamping groove 13 should be slightly larger than the area of the square cross-section of the input end of the handcart transmission shaft, so that the wedge 11 can be conveniently inserted into the gap to realize fixation.
The wedge 11 is provided with a driving device at one end close to the main crank lever 2, and the driving device is used for driving the wedge 11 to slide in the square clamping groove 13 and can be fixed at a set position.
Preferably, a top plate 10 is fixedly arranged at one end of the wedge 11 close to the main crank lever 2, and a driving device is arranged at one end of the top plate 10 far away from the wedge 11.
Preferably, the driving device comprises a fixed sleeve fixedly arranged in the square clamping groove 13, and the fixed sleeve is arranged at one end of the square clamping groove 13, which is close to the main crank lever 2;
a fixed thread 5 hole is formed in the fixed sleeve, a top shaft 6 is arranged in the fixed thread 5 hole, a movable thread 7 is arranged on the outer circular surface of the top shaft 6, and one end of the top shaft 6 stretches into the square clamping groove 13 and then contacts with the side surface of the top plate 10, which is away from the wedge clamp 11;
specifically, the movable thread 7 and the fixed thread are determined by whether or not the positions of the movable thread and the clamp and the fixed thread are changed, and the movable thread 7 is an external thread and the fixed thread is an internal thread.
A resetting device is arranged between the fixed sleeve and the top plate 10 and is used for realizing the movement of the top plate 10 and the wedge 11 close to the fixed sleeve.
Preferably, the resetting device is a spring 9, one end of the spring 9 is fixedly connected with the fixing sleeve, and the other end of the spring is fixedly connected with the top plate 10.
Preferably, the spring 9 is sleeved outside the top shaft 6, and the spring 9 is respectively connected with the top plate 10 or the fixed sleeve through a spring 9 fixed hook 8.
Preferably, one end of the top shaft 6 which does not extend into the square clamping groove 13 is fixedly connected with one end of the auxiliary crank lever 4, and the other end of the auxiliary crank lever 4 is fixedly connected with the auxiliary crank handle 3.
Preferably, the movable thread 7 is disposed in the middle of the top shaft 6, and the movable thread 7 is disposed on the outer side surface of the top shaft 6.
A power input method of a handcart switch transmission shaft comprises the following steps:
step 1: the handcart transmission shaft is stretched into the square clamping groove 13 and is contacted with the wedge clamp 11, the main crank handle 1 is fixed by hand, the auxiliary crank handle 3 is rotated along the set direction, and the top shaft 6 moves towards the direction of the top plate 10 under the cooperation of the movable thread 7 and the fixed thread;
step 2: the top shaft 6 presses the top plate 10, the top plate 10 presses the wedge 11, and the tip of the wedge 11 is pressed to move towards the handcart transmission shaft and is embedded into a gap between the handcart transmission shaft and the square clamping groove 13, and the handcart transmission shaft is fixed with the wedge and the wedge; the end of the spring 9 connected to the top plate 10 moves with the top plate 10 so that the spring 9 is stretched;
step 3: the main crank handle 1 is rotated, a user inputs torque to the handcart transmission shaft by hand, and the handcart switch is transported according to the set direction; the set direction refers to the forward and backward directions of the handcart switch.
Step 4: when the handcart switch moves to a set position, stopping rotating the main crank handle 1;
step 5: the handle 3 of the crank pair is reversely rotated, the top shaft 6 moves towards the direction away from the top plate 10, the spring 9 has a reset trend, the spring 9 drives the top plate 10 and the wedge 11 to move towards the direction away from the handcart transmission shaft, and the wedge 11 is separated from the gap between the handcart transmission shaft and the square clamping groove 13;
step 6: the card and the part are separated from the handcart transmission shaft.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (7)
1. The handcart switch operation crank is characterized by comprising a main crank handle and a main crank arm, wherein the main crank handle is vertical in the axial direction and one end of the main crank handle is fixed;
the clamping part which is vertical to the axial direction of the main crank handle is fixedly arranged at one end of the main crank handle, which is not connected with the main crank handle, and the clamping part is used for connecting a handcart transmission shaft;
the clamping part comprises a sleeve, a square clamping groove penetrating through the sleeve is formed in the sleeve, and the square clamping groove is used for sleeving a handcart transmission shaft;
the square clamping groove is internally provided with a wedge clamp, and the wedge clamp is used for being embedded into a gap between the square clamping groove and the handcart transmission shaft so as to realize the fixed connection of the clamping part and the handcart transmission shaft;
the driving device is used for driving the wedge clamp to slide in the square clamping groove and can be fixed at a set position;
the driving device comprises a fixed sleeve fixedly arranged in the square clamping groove, and the fixed sleeve is arranged at one end, close to the main crank arm, of the square clamping groove;
the fixed sleeve is internally provided with a fixed threaded hole, a top shaft is arranged in the fixed threaded hole, the outer circular surface of the top shaft is provided with movable threads, and one end of the top shaft stretches into the square clamping groove and then contacts with the side surface of the top plate, which is away from the wedge clamp;
a reset device is arranged between the fixed sleeve and the top plate, and the reset device is used for realizing the movement of the top plate and the wedge close to the fixed sleeve;
the fixed sleeve, the top shaft, the fixed thread and the movable thread are matched to realize the movement of the top shaft along the axis of the top shaft, and power is provided for the wedge clamp to extend into the gap between the square clamping groove and the handcart transmission shaft.
2. The handcart switch operation crank according to claim 1, wherein a top plate is fixedly arranged at one end of the wedge card close to the crank arm of the main crank, and a driving device is arranged at one end of the top plate far away from the wedge card;
the top plate is fixedly connected with the wedge clamp, the area of the top plate is larger than that of the wedge clamp, and the connection of the driving device can be facilitated.
3. The handcart switch operation crank according to claim 1, wherein the reset device is a spring, one end of the spring is fixedly connected with the fixed sleeve, and the other end of the spring is fixedly connected with the top plate.
4. A handcart switch operating crank according to claim 3, characterized in that the spring is sleeved outside the top shaft, and the spring is connected with the top plate or the fixing sleeve respectively through a spring fixing hook.
5. The handcart switch operation crank according to claim 1, wherein one end of the top shaft which does not extend into the square clamping groove is fixedly connected with one end of a crank arm of the auxiliary crank, and the other end of the crank arm of the auxiliary crank is fixedly connected with a handle of the auxiliary crank.
6. The handcart switch operation crank according to claim 1, wherein the movable screw thread is provided in the middle of the top shaft, and the movable screw thread is provided on the outer side surface of the top shaft.
7. A power input method of a handcart switch transmission shaft, using the handcart switch operation crank according to any one of claims 3 to 4, characterized by comprising the steps of:
step 1: the handcart transmission shaft is stretched into the square clamping groove and is contacted with the wedge clamp, the main crank handle is fixed by hand, then the auxiliary crank handle is rotated along the set direction, and the top shaft moves towards the direction of the top plate under the cooperation of the movable thread and the fixed thread;
step 2: the top shaft extrudes the top plate, the top plate extrudes the wedge clamp, the tip of the wedge clamp is pressed to move towards the handcart transmission shaft and is embedded into a gap between the handcart transmission shaft and the square clamping groove, and the handcart transmission shaft is fixed with the clamping part; one end of the spring connected with the top plate moves along with the top plate so that the spring is stretched;
step 3: rotating the main crank handle, inputting torque to the handcart transmission shaft by a user by hand, and conveying the handcart switch according to a set direction;
step 4: when the handcart switch moves to a set position, stopping rotating the main crank handle;
step 5: the handle of the crank pair is reversely rotated, the top shaft moves in a direction away from the top plate, the spring has a reset trend, the spring elastic force drives the top plate and the wedge clamp to move in a direction away from the handcart transmission shaft, and the wedge clamp is separated from a gap between the handcart transmission shaft and the square clamping groove;
step 6: the clamping part is separated from the handcart transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525954.9A CN109462169B (en) | 2018-12-13 | 2018-12-13 | Handcart switch operation crank and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525954.9A CN109462169B (en) | 2018-12-13 | 2018-12-13 | Handcart switch operation crank and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109462169A CN109462169A (en) | 2019-03-12 |
| CN109462169B true CN109462169B (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811525954.9A Active CN109462169B (en) | 2018-12-13 | 2018-12-13 | Handcart switch operation crank and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109462169B (en) |
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| CN202006344U (en) * | 2011-01-13 | 2011-10-12 | 济南吉利汽车有限公司 | Welding clamp lifting mechanism |
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Also Published As
| Publication number | Publication date |
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| CN109462169A (en) | 2019-03-12 |
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