CN103707045A - Device and method for dismantling shear pins of jacks - Google Patents
Device and method for dismantling shear pins of jacks Download PDFInfo
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- CN103707045A CN103707045A CN201310642405.0A CN201310642405A CN103707045A CN 103707045 A CN103707045 A CN 103707045A CN 201310642405 A CN201310642405 A CN 201310642405A CN 103707045 A CN103707045 A CN 103707045A
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- jack
- break pin
- hydraulic jack
- microprocessor
- slim
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/025—For detaching only
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a device and a method for dismantling shear pins of jacks. The device for dismantling the shear pins of the jacks comprises an upper flange and a lower flange. Hydraulic jacks are arranged between the upper flange and the lower flange, a distance sensor is arranged on the upper flange and is connected with an input end of a microprocessor by an AD (analog and digital) conversion module, and an output end of the microprocessor is connected with control ends of the hydraulic jacks by relays. The device and the method have the advantages that the device is simple in structure, the shear pins can be safely and efficiently dismantled by the aid of the device and the method, accordingly, equipment safety and personal safety can be guaranteed, and stop and defect elimination time of units can be effectively shortened; the method for dismantling the shear pins of the jacks is simple, safe and effective and is easy to implement, replacement and maintenance construction periods of the shear pins of the jacks of upper frameworks can be shortened, and unnecessary labor and material consumption can be reduced.
Description
Technical field
The present invention relates to a kind of jack break pin detaching device and method.
Background technology
The upper spider of hydroelectric generator unit is positioned at stator upper end, by centerbody and 12 support arms, form and be supported on the inwall of machine hole, be the support component of settling generating set top guide bearing, the magnetic pull that the rotor radial out-of-balance force that bearing is subject to and power generator air gap produce is delivered on the inwall of machine hole through frame.Because set structure belongs to without lower guide bearing structure, in order to reduce the radial vibration of generating set, at the jack of upper bracket-arm outer end installing bearing radial force, one end of jack is fixed on the wall of Generator hole.The load of jack is doubly considered by the full payload 1.5-2 of top guide bearing.For machine hole wall is not damaged when the short circuit of generator half magnetic pole, at jack front end, installed break pin.During operation, because the frequent generating unit of mechanical oscillation divides break pin by the situation of cutting off, generally need to change.Because of cutting off of break pin, stagger in inside and outside hole, and jack must utilize instrument to restore, and makes inside and outside hole aligning, with copper rod, sledgehammer hammering break pin, thereby takes out break pin.While changing break pin, traditional replacing method: remove generator upper spider jack, be fixed on the earth anchor of clipping room, recycling bridge machine is pulled out and cut off key seat, goes out after making it to aim at remaining break pin, changes new product after taking out old break pin.Because be subject to the limitation reason of place and instrument, whole work is required great effort time-consuming very much, and need to use bridge machine to carry out drawing, exists the hidden dangers such as rope loosing breaks.
Summary of the invention
In order to overcome the defect existing in above-mentioned prior art; the object of the present invention is to provide a kind of jack break pin detaching device and method; this device can complete the dismounting of break pin safely, efficiently, has guaranteed equipment, personal safety, has effectively reduced the compressor emergency shutdown defect elimination time.
The present invention is achieved through the following technical solutions:
Jack break pin detaching device, comprise upper flange and lower flange, between upper flange and lower flange, be provided with hydraulic jack, on described upper flange, be provided with distance-sensor, distance-sensor is connected with the input of microprocessor by AD modular converter, and the output of microprocessor is connected with the control end of hydraulic jack through relay.
Described distance-sensor adopts infrared distance-sensor.
Described microprocessor adopts single-chip microcomputer or DSP.
Described hydraulic jack is slim hydraulic jack.
Between upper flange and lower flange, be symmetrically arranged with the first slim hydraulic jack and the second slim hydraulic jack by same hydraulic pump control.
Described hydraulic pump is connected with power supply box, and power supply box is connected with the output of relay.
A method of removing jack break pin, comprises the following steps:
1) upper flange is fixed on to the footstock end of the jack of break pin to be removed, lower flange is fixed on to the socket end of the jack of break pin to be removed, the first slim hydraulic jack and the second slim hydraulic jack are arranged symmetrically between upper flange and lower flange;
2) in microprocessor, distance between the footstock hole of the jack of break pin to be removed and sleeve hole is made as to initial threshold, the hydraulic pump that starts the first slim hydraulic jack and the second slim hydraulic jack by power supply box, the active force of slim hydraulic jack struts upper flange and lower flange;
3) by distance-sensor, detect the real time kinematics distance signal of the first slim hydraulic jack and the second slim hydraulic jack, and this distance signal gathering is transferred to microprocessor by AD modular converter, compare with the initial threshold of setting in microprocessor:
If identical, microprocessor sends index signal, disconnects relay, thereby stops the motion of slim hydraulic jack; If different, slim hydraulic jack works on until the distance signal gathering is identical with the initial threshold of setting in microprocessor, and now, the footstock hole of the jack of break pin to be removed and sleeve hole position overlap;
4) footstock hole and the sleeve hole position overlapping position of by external force, treating the jack of removing break pin are knocked, and take out break pin.
Compared with prior art, the present invention has following useful technique effect:
Very heavy break pin detaching device of the present invention, comprise upper flange and lower flange, between upper flange and lower flange, be provided with hydraulic jack, upper flange is fixed on to the footstock end of the jack of break pin to be removed, lower flange is fixed on to the socket end of the jack of break pin to be removed, by the active force of hydraulic jack, slowly strut the both sides of two specific purpose tools, drive the jack of break pin to be removed to recover position, simultaneously, on upper flange, be provided with displacement sensor, displacement sensor is connected with the input of microprocessor by AD modular converter, the output of microprocessor is connected with the control end of hydraulic jack through relay, by displacement sensor, detect the real time kinematics distance signal of hydraulic jack, and this distance signal gathering is transferred to microprocessor by AD modular converter, and the initial threshold of setting in microprocessor (the footstock hole of the jack of break pin to be removed and the distance between sleeve hole) compares, can guarantee that the position that upper spider jacking pocket overlaps with sleeve hole is more accurate, and then knock by footstock hole and sleeve hole position overlapping position that external force is treated the jack of removing break pin, thereby take out break pin.The present invention is simple in structure, and dress can complete the dismounting of break pin safely, efficiently, has guaranteed equipment, personal safety, has effectively reduced the compressor emergency shutdown defect elimination time.
Method for dismounting of the present invention is simple and easy to implement, safe and effective, shortens upper spider jack break pin and changes maintenance duration, reduces unnecessary human and material resources consumption simultaneously.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present invention;
Fig. 2 is structural representation of the present invention.
Wherein, 1 is upper flange; 2 is lower flange; 3 is the first slim hydraulic jack; 4 is the second slim hydraulic jack.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
Referring to Fig. 1 and Fig. 2, jack break pin detaching device of the present invention, comprises upper flange 1 and lower flange 2, between upper flange 1 and lower flange 2, is provided with hydraulic jack, on described upper flange 1, is provided with distance-sensor, and distance-sensor adopts infrared distance-sensor; Distance-sensor is connected with the input of microprocessor by AD modular converter, and the output of microprocessor is connected with the control end of hydraulic jack through relay.Wherein, microprocessor adopts single-chip microcomputer or DSP.
Preferably, described hydraulic jack is slim hydraulic jack, and between upper flange 1 and lower flange 2, be symmetrically arranged with the first slim hydraulic jack 3 and the second slim hydraulic jack 4 by same hydraulic pump control, described hydraulic pump is connected with power supply box, and power supply box is connected with the output of relay.
Jack break pin method for dismounting of the present invention, comprises the following steps:
1) upper flange is fixed on to the footstock end of the jack of break pin to be removed, lower flange is fixed on to the socket end of the jack of break pin to be removed, the first slim hydraulic jack and the second slim hydraulic jack are arranged symmetrically between upper flange and lower flange;
2) in microprocessor, the distance between the footstock hole of the jack of break pin to be removed and sleeve hole is made as to initial threshold, the hydraulic pump that starts the first slim hydraulic jack and the second slim hydraulic jack by external power supply case, the active force of slim hydraulic jack struts upper flange and lower flange;
3) by displacement sensor, detect the real time kinematics distance signal of the first slim hydraulic jack and the second slim hydraulic jack, and this distance signal gathering is transferred to microprocessor by AD modular converter, compare with the initial threshold of setting in microprocessor:
If identical, microprocessor sends index signal, disconnects relay, thereby stops the motion of slim hydraulic jack; If different, slim hydraulic jack works on until the distance signal gathering is identical with the initial threshold of setting in microprocessor, and now, the footstock hole of the jack of break pin to be removed and sleeve hole position overlap;
4) footstock hole and the sleeve hole position overlapping position of by external force, treating the jack of removing break pin are knocked, and take out break pin.
In sum, the present invention utilizes upper spider jack ladder cylinder cleverly, two ring flanges are set thereon, and thin type hydraulic jack is set between flange, utilize thin type hydraulic jack easily to control, the features such as handling safety, make upper spider jacking pocket and sleeve hole return to original position; Simultaneously, by being set, distance-sensor records the real time kinematics distance signal of slim hydraulic jack, this distance signal and the initial threshold (distance between the footstock hole of the jack of break pin to be removed and sleeve hole is made as to initial threshold) that is arranged in microprocessor are compared, make more accurately upper spider jacking pocket and sleeve hole return to original position.
Original method is changed a jack break pin probably needs 8 people, and the darg time completes; Need in addition lifting personnel to coordinate, complex operation, and overhead traveling crane controls and is difficult to accurately in drawing process, need to could take out break pin through repeatedly adjustment repeatedly, also has security hidden danger simultaneously.
After new tool and method is implemented, only need 2 people, cost working time half a day just can complete, and has greatly shortened the time of break pin dismounting task, has alleviated working strength, raises the efficiency, and has increased security.In real work, reduced working strength, the easily simple solution of complicated problem.After the use of this device, shorten upper spider jack break pin and change maintenance duration, reduce unnecessary human and material resources consumption simultaneously, for shortening the unit maintenance duration, provide strong guarantee, strong foundation is provided to unit equivalent available factor, the having a far reaching influence of generation.
Claims (7)
1. jack break pin detaching device, it is characterized in that, comprise upper flange (1) and lower flange (2), between upper flange (1) and lower flange (2), be provided with hydraulic jack, on described upper flange (1), be provided with distance-sensor, distance-sensor is connected with the input of microprocessor by AD modular converter, and the output of microprocessor is connected with the control end of hydraulic jack through relay.
2. jack break pin detaching device according to claim 1, is characterized in that, described distance-sensor adopts infrared distance-sensor.
3. jack break pin detaching device according to claim 1, is characterized in that, described microprocessor adopts single-chip microcomputer or DSP.
4. jack break pin detaching device according to claim 1, is characterized in that, described hydraulic jack is slim hydraulic jack.
5. jack break pin detaching device according to claim 1, it is characterized in that, between upper flange (1) and lower flange (2), be symmetrically arranged with the first slim hydraulic jack (3) and the second slim hydraulic jack (4) by same hydraulic pump control.
6. jack break pin detaching device according to claim 5, is characterized in that, described hydraulic pump is connected with power supply box, and power supply box is connected with the output of relay.
7. adopt jack break pin detaching device claimed in claim 6 to remove a method for jack break pin, it is characterized in that, comprise the following steps:
1) upper flange is fixed on to the footstock end of the jack of break pin to be removed, lower flange is fixed on to the socket end of the jack of break pin to be removed, the first slim hydraulic jack and the second slim hydraulic jack are arranged symmetrically between upper flange and lower flange;
2) in microprocessor, distance between the footstock hole of the jack of break pin to be removed and sleeve hole is made as to initial threshold, the hydraulic pump that starts the first slim hydraulic jack and the second slim hydraulic jack by power supply box, the active force of slim hydraulic jack struts upper flange and lower flange;
3) by distance-sensor, detect the real time kinematics distance signal of the first slim hydraulic jack and the second slim hydraulic jack, and this distance signal gathering is transferred to microprocessor by AD modular converter, compare with the initial threshold of setting in microprocessor:
If identical, microprocessor sends index signal, disconnects relay, thereby stops the motion of slim hydraulic jack; If different, slim hydraulic jack works on until the distance signal gathering is identical with the initial threshold of setting in microprocessor, and now, the footstock hole of the jack of break pin to be removed and sleeve hole position overlap;
4) footstock hole and the sleeve hole position overlapping position of by external force, treating the jack of removing break pin are knocked, and take out break pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310642405.0A CN103707045B (en) | 2013-12-03 | 2013-12-03 | Jack break pin detaching device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310642405.0A CN103707045B (en) | 2013-12-03 | 2013-12-03 | Jack break pin detaching device and method |
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| Publication Number | Publication Date |
|---|---|
| CN103707045A true CN103707045A (en) | 2014-04-09 |
| CN103707045B CN103707045B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310642405.0A Active CN103707045B (en) | 2013-12-03 | 2013-12-03 | Jack break pin detaching device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753958A (en) * | 2022-03-03 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Hydraulic turbine stator shear pin monitoring devices |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473932A (en) * | 1982-12-27 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Army | Detonator remover |
| US4738151A (en) * | 1987-01-23 | 1988-04-19 | Reliance Electric Company | Pinion coupling |
| CN201220337Y (en) * | 2008-06-17 | 2009-04-15 | 上海大屯能源股份有限公司 | Special-purpose tool for disassembling hydraulic coupling and brake disc |
| CN201632986U (en) * | 2009-12-09 | 2010-11-17 | 江西泰豪特种电机有限公司 | Shear pin dismounting device of medium and small-sized water turbine |
-
2013
- 2013-12-03 CN CN201310642405.0A patent/CN103707045B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473932A (en) * | 1982-12-27 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Army | Detonator remover |
| US4738151A (en) * | 1987-01-23 | 1988-04-19 | Reliance Electric Company | Pinion coupling |
| CN201220337Y (en) * | 2008-06-17 | 2009-04-15 | 上海大屯能源股份有限公司 | Special-purpose tool for disassembling hydraulic coupling and brake disc |
| CN201632986U (en) * | 2009-12-09 | 2010-11-17 | 江西泰豪特种电机有限公司 | Shear pin dismounting device of medium and small-sized water turbine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753958A (en) * | 2022-03-03 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Hydraulic turbine stator shear pin monitoring devices |
| CN114753958B (en) * | 2022-03-03 | 2023-11-17 | 华能澜沧江水电股份有限公司 | Monitoring device for shear pin of guide vane of water turbine |
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| Publication number | Publication date |
|---|---|
| CN103707045B (en) | 2016-03-02 |
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