CN112027920A - Lightning protection grounding device of bridge crane and use method - Google Patents
Lightning protection grounding device of bridge crane and use method Download PDFInfo
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- CN112027920A CN112027920A CN202010790667.1A CN202010790667A CN112027920A CN 112027920 A CN112027920 A CN 112027920A CN 202010790667 A CN202010790667 A CN 202010790667A CN 112027920 A CN112027920 A CN 112027920A
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- swing arm
- pin shaft
- plate
- bridge crane
- grounding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a lightning protection grounding device of a bridge crane and a use method, the lightning protection grounding device of the bridge crane comprises a cross beam, wherein a support is fixedly arranged at the bottom of the cross beam, a first pin shaft and a second pin shaft are respectively arranged on two pairs of pin shaft holes on the left and right sides of the lower part of the support, a swing arm is arranged on the second pin shaft in a matching way, an adjusting rod piece is arranged on the first pin shaft in a matching way, the other end of the adjusting rod piece is hinged and connected with the tail end of the swing arm through a hinge shaft, and a grounding plate is hinged to the middle hole of the swing arm through a; and a grounding wire is connected between the cross beam and the grounding plate. The device can ensure real-time grounding of the bridge crane equipment, and further avoid lightning stroke of the bridge crane equipment so as to prolong the service life of the bridge crane.
Description
Technical Field
The invention belongs to the field of crane grounding devices, and particularly relates to a lightning protection grounding device for a bridge crane and a using method thereof.
Background
Bridge crane wide application is in navigation hub, industrial and mining enterprises, railway transportation, places such as harbour pier and commodity circulation turnover, because this equipment is huge, generally all arrange outdoor open-air environment in and equipment operating position is higher, again because of the whole steel frame construction that is of equipment, suffer thunderbolt very easily when meetting thunder and lightning weather, however, directly adopt a quick-witted metal construction to carry out ground connection as the conductor, when the electric current that the lightning rod introduced passes through parts such as bearing, damage parts such as bearing easily to influence the life of each part of hoist. Therefore, it is an important technical problem to be solved by those skilled in the art to invent a simple and reliable lightning grounding device for bridge crane to protect equipment from being threatened by an affected point.
Disclosure of Invention
The invention aims to provide a lightning protection grounding device of a bridge crane and a using method thereof, which can ensure that bridge crane equipment is grounded in real time, further avoid the bridge crane equipment from being struck by lightning and prolong the service life of the bridge crane.
In order to achieve the technical features, the invention is realized as follows: a lightning protection grounding device of a bridge crane comprises a cross beam, wherein a support is fixedly installed at the bottom of the cross beam, a first pin shaft and a second pin shaft are respectively installed on a left pair of pin shaft holes and a right pair of pin shaft holes at the lower part of the support, a swing arm is installed on the second pin shaft in a matched mode, an adjusting rod piece is installed on the first pin shaft in a matched mode, the other end of the adjusting rod piece is hinged and connected with the tail end of the swing arm through a hinge shaft, and a grounding plate is hinged to a middle hole of the swing arm through; and a grounding wire is connected between the cross beam and the grounding plate.
The cross beam adopts a box beam structure, and an end side plate is fixed at one end of the cross beam; when the end-head-type grounding wire is used, the end-head side plate is fixedly connected with the bridge crane, the bottom end of the cross beam is provided with the upper lug plate, and the top end of the grounding wire is fixedly connected with the upper lug plate.
The support is including being used for with the fixed connecting plate that links to each other in crossbeam bottom, the bottom symmetric welding of connecting plate has left branch fagging and right branch fagging, the both sides of left branch fagging and right branch fagging are symmetrical respectively to be processed there is the round pin shaft hole, and the round pin shaft hole that lies in same one side cooperates with first round pin axle and second round pin axle respectively.
The swing arm comprises a left swing arm and a right swing arm which are symmetrically arranged, holes at one end of the left swing arm and one end of the right swing arm are matched with a second pin shaft, a second bushing is sleeved on the second pin shaft and positioned between the left swing arm and the right swing arm, a second check ring is installed in a clamping groove at the end of the second pin shaft, and the second check ring is fixedly installed on the outer side wall of a right supporting plate of the support through screws; and the left swing arm and the right swing arm both adopt crank arm structures.
The adjusting rod piece comprises a loop bar, a hole at one end of the loop bar is matched with a first pin shaft, two first bushings are arranged on the first pin shaft and are respectively positioned between the loop bar and a left supporting plate and a right supporting plate of the support, a first check ring is arranged in a clamping groove at one end of the first pin shaft, and the first check ring is fixed on the outer side wall of the right supporting plate through screws; and a self-adaptive pressing mechanism which is used for driving the swing arm to rotate and enabling the ground plate to be attached to the track beam all the time is arranged between the loop bar and the hinged shaft.
The self-adaptation hold-down mechanism includes the dabber of suit inside the loop bar, the dabber is located the inside end symmetry of loop bar and installs the spacer pin, the spacer pin constitutes sliding fit with two symmetrical U type grooves of processing on the loop bar, the other end of dabber articulates on the articulated shaft, and the cover is equipped with the spring at the spindle, the both ends of spring contact the cooperation with the interior shoulder of inner stepped hole of loop bar and dabber respectively for the dabber can be in the inside flexible slip of loop bar.
The articulated shaft cooperates with the round pin shaft hole that the dabber of the left swing arm and the right swing arm of swing arm and adjustment member corresponds, install the third retaining ring in the draw-in groove of articulated shaft one end, the third retaining ring passes through the fix with screw on right swing arm lateral wall.
The ground plate includes the bottom plate, the bottom of bottom plate and the top contact cooperation of track roof beam, the top of bottom plate is fixed with articulated seat, articulated seat articulates in the swing arm through third round pin axle, the top of bottom plate is fixed with lower otic placode, the otic placode links to each other with the bottom stationary phase of earth connection down, the top processing of articulated seat has the spacing groove, the step shaft terminal surface of third round pin axle passes through the fix with screw on left swing arm side, fixed mounting has stop screw on the spacing groove, stop screw's the other end links to each other with the epaxial spacing hole cooperation of third round pin, another end of third round pin axle is provided with stifle, stifle passes through the fix with screw on the lateral wall of left swing arm.
The installation and use method of the lightning protection grounding device of the bridge crane comprises the following steps:
the method comprises the following steps: fixedly connecting the cross beam with bridge crane equipment through an end side plate;
step two: in the mounting process of the cross beam, the mounting height of the cross beam on bridge crane equipment is adjusted, and the grounding plate is made to be in contact with a track beam of the bridge crane equipment;
step three: connecting a grounding wire between the lower lug plate and the upper lug plate so as to enable the whole bridge crane equipment to be grounded;
step four: in the process of normal bridge connection walking, one end of the swing arm and one end of the adjusting rod piece can rotate relatively around the support, the swing arm and the other end of the adjusting rod piece are hinged, a loop bar of the adjusting rod piece can slide relatively along the axis of the mandrel, a return spring is arranged between the loop bar and the mandrel, and a limiting pin is arranged on the mandrel, so that the mandrel and the loop bar can slide relatively in a certain range, and further, the ground plate is always attached to the track beam, and reliable grounding is realized;
step five: and a limiting screw is arranged on the third pin shaft, and the ground plate can relatively rotate around the third pin shaft within a certain range, so that the bottom surface of the ground plate is always parallel to the upper plane of the track beam.
The invention has the following beneficial effects:
1. the invention has good grounding effect, safety and reliability, the bridge crane is contacted with the track beam sequentially through the cross beam, the grounding wire and the grounding plate, the bottom surface of the track grounding plate is contacted with the top surface of the track beam, and the contact surface is large.
2. The invention has strong self-adaptation, the swing arm and the adjusting rod can rotate relatively around the support, the loop bar of the adjusting rod can extend and contract along the axis by the mandrel, the reset spring is arranged between the loop bar and the mandrel, the mandrel is provided with the limiting pin, so that the mandrel and the loop bar can slide relatively in a certain range, the spring is in a compressed state, and the ground plate is ensured to be always attached to the track beam.
3. Through the cooperation between spacing groove and the stop screw, guarantee that the bottom terminal surface of ground plate keeps parallel with the top surface of track roof beam all the time.
4. The self-adaptive pressing mechanism ensures that the grounding plate can be always in contact fit with the track beam, and ensures the reliability of grounding.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic front perspective view of the present invention.
Fig. 2 is a schematic view of the reverse side of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a rear view of the present invention.
Fig. 5 is a left side view of the invention.
Fig. 6 is a right side view of the invention.
Fig. 7 is a top sectional view of the present invention.
Fig. 8 is a perspective view of the stand according to the present invention.
Fig. 9 is a schematic perspective view of the grounding plate of the present invention.
In the figure: the device comprises a cross beam 1, a support 2, a swing arm 3, an adjusting rod 4, a ground plate 5, a ground wire 6, a track beam 7, a first pin shaft 8, a first bush 9, a first check ring 10, a hinge shaft 11, a third check ring 12, a third pin shaft 13, a blank cap 14, a limit screw 15, a second pin shaft 16, a second bush 17 and a second check ring 18;
an upper ear plate 101;
a connecting plate 201, a left support plate 202 and a right support plate 203;
a left swing arm 301 and a right swing arm 302;
a loop bar 401, a limit pin 402, a mandrel 403 and a spring 404;
a limiting groove 501 and a lower ear plate 502.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-9, a lightning protection grounding device for a bridge crane comprises a beam 1, wherein a support 2 is fixedly installed at the bottom of the beam 1, a first pin shaft 8 and a second pin shaft 16 are respectively installed on two pairs of pin shaft holes on the left and right of the lower part of the support 2, a swing arm 3 is installed on the second pin shaft 16 in a matching manner, an adjusting rod member 4 is installed on the first pin shaft 8 in a matching manner, the other end of the adjusting rod member 4 is hinged and connected with the tail end of the swing arm 3 through a hinge shaft 11, and a grounding plate 5 is hinged to a middle hole of the swing arm 3 through a third pin shaft 13; and a grounding wire 6 is connected between the beam 1 and the grounding plate 5. Through the grounding device with the structure, the reliable grounding of the bridging equipment can be realized, the bridge crane equipment is prevented from being struck by lightning, and the service life of the bridge crane is prolonged. In the specific use process, the beam 1 is fixedly connected with bridge crane equipment, the beam 1 is conducted and connected with the grounding plate 5 through the grounding wire 6, the grounding plate 5 is further contacted and connected with the track beam 7, the track beam 7 is connected with the ground, and finally reliable grounding of the bridge equipment is achieved.
Furthermore, the cross beam 1 adopts a box beam structure, and an end side plate is fixed at one end of the cross beam 1; during the use, the end curb plate links to each other with the bridge machine is fixed, is provided with otic placode 101 in the bottom of crossbeam 1, the top and the last otic placode 101 of earth connection 6 are fixed continuous. The beam 1 is used for fixing and installing the whole grounding device, and then the whole grounding device is fixedly connected with the bridge crane.
Further, the support 2 includes and is used for the connecting plate 201 with the fixed linking to each other in crossbeam 1 bottom, the bottom symmetrical welding of connecting plate 201 has left branch fagging 202 and right branch fagging 203, the both sides of left branch fagging 202 and right branch fagging 203 are symmetrical respectively to be processed and have the round pin shaft hole, and the round pin shaft hole that lies in same one side cooperates with first round pin axle 8 and second round pin axle 16 respectively. The above-mentioned support 2 can be used for the articulated connection of the swing arm 3 and the setting lever 4.
Further, the swing arm 3 comprises a left swing arm 301 and a right swing arm 302 which are symmetrically arranged, holes at one end of the left swing arm 301 and one end of the right swing arm 302 are matched with a second pin shaft 16, a second bushing 17 is sleeved on the second pin shaft 16 and between the left swing arm 301 and the right swing arm 302, a second retainer ring 18 is installed on a clamping groove at the end of the second pin shaft 16, and the second retainer ring 18 is fixedly installed on the outer side wall of the right support plate 203 of the support 2 through screws; the left swing arm 301 and the right swing arm 302 both adopt crank arm structures. The swing arm 3 can swing around the second pin 16 in the walking process on one hand, and can drive the ground plate 5 at the bottom end of the swing arm to rotate within a certain range on the other hand, so that the ground plate 5 is ensured to be reliably contacted with the track beam 7.
Further, the adjusting rod member 4 comprises a sleeve rod 401, a hole at one end of the sleeve rod 401 is matched with a first pin shaft 8, two first bushings 9 are mounted on the first pin shaft 8, the two first bushings 9 are respectively located between the sleeve rod 401 and the left support plate 202 and the right support plate 203 of the support 2, a first check ring 10 is mounted in a clamping groove at one end of the first pin shaft 8, and the first check ring 10 is fixed on the outer side wall of the right support plate 203 through a screw; and a self-adaptive pressing mechanism which is used for driving the swing arm 3 to rotate and enabling the ground plate 5 to be always attached to the track beam 7 is arranged between the loop bar 401 and the hinge shaft 11. The adjusting rod 4 is used for adjusting the position of the swing arm 3, and the swing arm 3 can drive the ground plate 5 to be in contact with the track beam 7.
Further, self-adaptation hold-down mechanism includes the dabber 403 of suit in loop bar 401 inside, dabber 403 is located the inside end symmetry of loop bar 401 and installs spacer pin 402, spacer pin 402 constitutes sliding fit with two symmetry U type grooves of processing on loop bar 401, the other end of dabber 403 articulates on articulated shaft 11, and the cover is equipped with spring 404 on dabber 403, the both ends of spring 404 contact the cooperation with the interior shoulder of inner stepped hole of loop bar 401 and dabber 403 respectively for dabber 403 can be in the inside flexible slip of loop bar 401. The self-adaptive pressing mechanism ensures that the grounding plate 5 can be always in contact fit with the track beam 7, and ensures the reliability of grounding. In the working process, the spring 404 can always press the mandrel 403, the swing arm 3 is pressed by the mandrel 403, the ground plate 5 at the bottom end of the swing arm 3 is pressed by the swing arm 3, and finally the ground plate 5 is reliably contacted with the track beam 7.
Further, the hinge shaft 11 is matched with the hinge shaft holes corresponding to the mandrels 403 of the left swing arm 301 and the right swing arm 302 of the swing arm 3 and the adjusting rod member 4, a third check ring 12 is installed in the clamping groove at one end of the hinge shaft 11, and the third check ring 12 is fixed on the outer side wall of the right swing arm 302 through screws. The reliability of the installation and connection of the hinge shaft 11 is ensured by the installation mode of the hinge shaft.
Further, the ground plate 5 includes the bottom plate, the bottom of bottom plate and the top contact cooperation of track roof beam 7, the top of bottom plate is fixed with articulated seat, articulated seat articulates on swing arm 3 through third round pin axle 13, the top of bottom plate is fixed with lower otic placode 502, lower otic placode 502 links to each other with the bottom stationary phase of earth connection 6, the top processing of articulated seat has spacing groove 501, the step shaft terminal surface of third round pin axle 13 passes through the fix with screw on left swing arm 301 side, fixed mounting has stop screw 15 on the spacing groove 501, stop screw 15's the other end links to each other with the spacing hole cooperation on the third round pin axle 13, another end of third round pin axle 13 is provided with stifle 14, stifle 14 passes through the fix with screw on the lateral wall of left swing arm 302. The grounding can be achieved by the grounding plate 5 described above. And the bottom end face of the grounding plate 5 is always kept parallel to the top face of the track beam 7 through the matching between the limiting groove 501 and the limiting screw 15.
Example 2:
the installation and use method of the lightning protection grounding device of the bridge crane comprises the following steps:
the method comprises the following steps: fixedly connecting the cross beam 1 with bridge crane equipment through an end side plate;
step two: in the installation process of the cross beam 1, adjusting the installation height of the cross beam on bridge crane equipment, and enabling the grounding plate 5 to be in contact with a track beam 7 of the bridge crane equipment;
step three: connecting a grounding wire 6 between the lower lug plate 502 and the upper lug plate 101 so as to ground the whole bridge crane equipment;
step four: in the process of normal bridging walking, one end of the swing arm 3 and one end of the adjusting rod piece 4 can rotate relatively around the support 2, the other end of the swing arm 3 and the other end of the adjusting rod piece 4 are hinged, the loop bar 401 of the adjusting rod piece 4 can slide relatively along the axis of the mandrel 403, a return spring 404 is arranged between the loop bar 401 and the mandrel 403, and the mandrel 403 is provided with a limit pin 402, so that the mandrel 403 and the loop bar 401 slide relatively in a certain range, and further, the ground plate 5 is attached to the track beam 7 all the time, and reliable grounding is realized;
step five: and a limiting screw 15 is arranged on the third pin shaft 13, and the grounding plate 5 can relatively rotate around the third pin shaft 13 within a certain range, so that the bottom surface of the grounding plate 5 is always parallel to the upper plane of the track beam 7.
Claims (9)
1. The utility model provides a bridge crane lightning grounding device which characterized in that: the device comprises a cross beam (1), wherein a support (2) is fixedly installed at the bottom of the cross beam (1), a first pin shaft (8) and a second pin shaft (16) are respectively installed on two pairs of pin shaft holes on the left and right of the lower part of the support (2), a swing arm (3) is installed on the second pin shaft (16) in a matching way, an adjusting rod piece (4) is installed on the first pin shaft (8) in a matching way, the other end of the adjusting rod piece (4) is hinged and connected with the tail end of the swing arm (3) through a hinge shaft (11), and a ground plate (5) is hinged to a middle hole of the swing arm (3) through a third pin shaft; and a grounding wire (6) is connected between the cross beam (1) and the grounding plate (5).
2. The lightning protection grounding device for bridge crane according to claim 1, wherein: the cross beam (1) adopts a box beam structure, and an end side plate is fixed at one end of the cross beam (1); during the use, the end curb plate links to each other with the bridge crane is fixed, is provided with otic placode (101) in the bottom of crossbeam (1), the top and last otic placode (101) of earth connection (6) are fixed continuous.
3. The lightning protection grounding device for bridge crane according to claim 1, wherein: support (2) including being used for with crossbeam (1) bottom fixed connecting plate (201) that links to each other, the bottom symmetric welding of connecting plate (201) has left branch fagging (202) and right branch fagging (203), the both sides of left branch fagging (202) and right branch fagging (203) symmetry processing respectively have the round pin shaft hole, lie in the round pin shaft hole with one side respectively with first round pin axle (8) and second round pin axle (16) cooperation.
4. The lightning protection grounding device for bridge crane according to claim 1, wherein: the swing arm (3) comprises a left swing arm (301) and a right swing arm (302) which are symmetrically arranged, holes at one ends of the left swing arm (301) and the right swing arm (302) are matched with a second pin shaft (16), a second bushing (17) is sleeved on the second pin shaft (16) and positioned between the left swing arm (301) and the right swing arm (302), a second check ring (18) is installed in a clamping groove at the end of the second pin shaft (16), and the second check ring (18) is fixedly installed on the outer side wall of a right supporting plate (203) of the support (2) through screws; and the left swing arm (301) and the right swing arm (302) both adopt crank arm structures.
5. The lightning protection grounding device for bridge crane according to claim 1, wherein: the adjusting rod piece (4) comprises a sleeve rod (401), a hole at one end of the sleeve rod (401) is matched with a first pin shaft (8), two first bushings (9) are mounted on the first pin shaft (8), the two first bushings (9) are respectively located between the sleeve rod (401) and a left supporting plate (202) and a right supporting plate (203) of the support (2), a first check ring (10) is mounted in a clamping groove at one end of the first pin shaft (8), and the first check ring (10) is fixed on the outer side wall of the right supporting plate (203) through screws; and a self-adaptive pressing mechanism which is used for driving the swing arm (3) to rotate and enabling the ground plate (5) to be attached to the track beam (7) all the time is arranged between the loop bar (401) and the hinge shaft (11).
6. The lightning protection grounding device for bridge crane according to claim 5, wherein: self-adaptation hold-down mechanism includes that the suit is at dabber (403) of loop bar (401) inside, dabber (403) are located the inside end symmetry of loop bar (401) and install spacer pin (402), spacer pin (402) constitute sliding fit with two symmetry U type grooves of processing on loop bar (401), the other end of dabber (403) articulates on articulated shaft (11), and the cover is equipped with spring (404) on dabber (403), the both ends of spring (404) contact the cooperation with the end shoulder of the interior shoulder of interior shoulder and dabber (403) of loop bar (401) respectively for dabber (403) can be in the inside flexible slip of loop bar (401).
7. The lightning protection grounding device for bridge crane according to claim 1, wherein: the articulated shaft (11) and the left swing arm (301) and the right swing arm (302) of swing arm (3) and the round pin shaft hole cooperation that dabber (403) of adjustment member (4) correspond, install third retaining ring (12) in the draw-in groove of articulated shaft (11) one end, third retaining ring (12) are passed through the fix with screw on right swing arm (302) lateral wall.
8. The lightning protection grounding device for bridge crane according to claim 1, wherein: the grounding plate (5) comprises a bottom plate, the bottom end of the bottom plate is in contact fit with the top end of the track beam (7), the top end of the bottom plate is fixed with a hinged seat which is hinged on the swing arm (3) through a third pin shaft (13), a lower ear plate (502) is fixed at the top of the bottom plate, the lower ear plate (502) is fixedly connected with the bottom end of the grounding wire (6), a limiting groove (501) is processed at the top end of the hinge seat, the end surface of the stepped shaft of the third pin shaft (13) is fixed on the side surface of the left swing arm (301) through a screw, a limit screw (15) is fixedly arranged on the limit groove (501), the other end of the limit screw (15) is matched and connected with a limit hole on the third pin shaft (13), and the other end of the third pin shaft (13) is provided with a blank cap (14), and the blank cap (14) is fixed on the outer side wall of the left swing arm (302) through a screw.
9. The method for installing and using the lightning protection grounding device of bridge crane according to any one of claims 1 to 8, characterized in that it comprises the following steps:
the method comprises the following steps: fixedly connecting the cross beam (1) with bridge crane equipment through an end side plate;
step two: in the mounting process of the cross beam (1), adjusting the mounting height of the cross beam on bridge crane equipment, and enabling the grounding plate (5) to be in contact with a track beam (7) of the bridge crane equipment;
step three: connecting a grounding wire (6) between the lower lug plate (502) and the upper lug plate (101) so as to enable the whole bridge crane device to be grounded;
step four: in the process of normal walking of bridging, one end of a swing arm (3) and one end of an adjusting rod piece (4) can rotate relatively around a support (2), the swing arm (3) is hinged with the other end of the adjusting rod piece (4), a loop bar (401) of the adjusting rod piece (4) can slide relatively along the axis of a mandrel (403), a reset spring (404) is arranged between the loop bar (401) and the mandrel (403), a limiting pin (402) is arranged on the mandrel (403), so that the mandrel (403) and the loop bar (401) can slide relatively in a certain range, a ground plate (5) is attached to a track beam (7) all the time, and reliable grounding is realized;
step five: and a limiting screw (15) is arranged on the third pin shaft (13), and the grounding plate (5) can rotate relatively around the third pin shaft (13) within a certain range, so that the bottom surface of the grounding plate (5) is always parallel to the upper plane of the track beam (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790667.1A CN112027920B (en) | 2020-08-07 | 2020-08-07 | Lightning protection grounding device of bridge crane and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790667.1A CN112027920B (en) | 2020-08-07 | 2020-08-07 | Lightning protection grounding device of bridge crane and use method |
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| Publication Number | Publication Date |
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| CN112027920A true CN112027920A (en) | 2020-12-04 |
| CN112027920B CN112027920B (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010790667.1A Active CN112027920B (en) | 2020-08-07 | 2020-08-07 | Lightning protection grounding device of bridge crane and use method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062660A (en) * | 2006-04-29 | 2007-10-31 | 上海磁浮交通工程技术研究中心 | Current for acceptor current enter and reflux |
| CN101442173A (en) * | 2008-12-12 | 2009-05-27 | 常州市沪港港口机械有限公司 | Slide grounding device for mobile equipment |
| CN102602814A (en) * | 2012-03-28 | 2012-07-25 | 江苏华澄重工有限公司 | Lightning-proof grounding device for cranes |
| CN204096938U (en) * | 2014-08-18 | 2015-01-14 | 珠海三一港口机械有限公司 | A kind of hoisting crane grounding-for-lightning device |
| CN205984675U (en) * | 2016-05-20 | 2017-02-22 | 河南森源电气股份有限公司 | Ground connection sword hand movement (HM) divide -shut brake operating mechanism and use circuit breaker of this operating mechanism |
-
2020
- 2020-08-07 CN CN202010790667.1A patent/CN112027920B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062660A (en) * | 2006-04-29 | 2007-10-31 | 上海磁浮交通工程技术研究中心 | Current for acceptor current enter and reflux |
| CN101442173A (en) * | 2008-12-12 | 2009-05-27 | 常州市沪港港口机械有限公司 | Slide grounding device for mobile equipment |
| CN102602814A (en) * | 2012-03-28 | 2012-07-25 | 江苏华澄重工有限公司 | Lightning-proof grounding device for cranes |
| CN204096938U (en) * | 2014-08-18 | 2015-01-14 | 珠海三一港口机械有限公司 | A kind of hoisting crane grounding-for-lightning device |
| CN205984675U (en) * | 2016-05-20 | 2017-02-22 | 河南森源电气股份有限公司 | Ground connection sword hand movement (HM) divide -shut brake operating mechanism and use circuit breaker of this operating mechanism |
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| Publication number | Publication date |
|---|---|
| CN112027920B (en) | 2022-06-03 |
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