CN217377079U - Travelling safety device of crown block - Google Patents
Travelling safety device of crown block Download PDFInfo
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- CN217377079U CN217377079U CN202220322087.4U CN202220322087U CN217377079U CN 217377079 U CN217377079 U CN 217377079U CN 202220322087 U CN202220322087 U CN 202220322087U CN 217377079 U CN217377079 U CN 217377079U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to a walking safety device of overhead traveling crane belongs to overhead traveling crane electrical equipment technical field. The technical scheme of the utility model is that: detect proximity switch and install in cart (1) end beam side through detecting proximity switch support, pick-up plate (2) are fixed on the inboard factory building steel construction of rail through pick-up plate support (3), detect proximity switch directly over. The utility model has the advantages that: the detection proximity switch is arranged on the side face of the end beam of the crown block, when a cart runs to an equipment area needing avoiding, a warning signal is sent out, the cart stops running, the cart can continue to run only when a trolley is in a safe position, anti-collision safety protection in an equipment protection area is achieved, and the situation that production equipment is damaged due to collision caused by negligence or lack of confirmation is avoided.
Description
Technical Field
The utility model relates to a walking safety device of overhead traveling crane belongs to overhead traveling crane electrical equipment technical field.
Background
In the production process of metallurgical enterprises, a crown block is used for transferring materials. Due to the requirement of the process flow, various production equipment is arranged in the plant, and some production equipment is arranged on the travelling route of the crown block, has very high height and is very close to the bottom of the girder of the crown block, so that the crown block has to be careful when passing by the travelling route, and the trolley of the crown block has to be driven to one side to safely pass through the travelling route. In actual production, due to negligence or improper confirmation, the situation that production equipment is damaged by collision when a large vehicle is moved often occurs, the damage to the equipment is very large, and great potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a walking safety device of overhead traveling crane, through detecting proximity switch at overhead traveling crane end beam side-mounting, walk when the cart walks to the equipment region that needs dodge, send warning signal, stop the cart operation, must the dolly when safe position, the cart just can continue to walk the line, realized the anticollision safety protection in equipment protection district, avoided because of carelessness or confirm that the condition that the out-of-position caused to hit production facility takes place, the above-mentioned problem that exists among the background art has been solved.
The technical scheme of the utility model is that: a crown block walking safety device comprises a detection proximity switch, a detection plate bracket, a detection proximity switch bracket, a protection relay, a detection relay and a buzzer, wherein the detection proximity switch is arranged on the side surface of a large car end beam through the detection proximity switch bracket;
the detection proximity switch normally closed contact is connected with the detection relay coil in series; the normally open contact I of the detection relay is connected with the coil of the protection relay in series; the south pre-limiting normally open contact of the trolley is connected with a coil of the protective relay in series; the normally closed contact of the detection relay is connected with the buzzer in series; the normally open contact of the protective relay is connected in series with the original cart control loop; and a second detection relay normally open contact is connected in series with the original trolley control loop.
When the length L of the protected equipment area is greater than or equal to the length L1 of the end beam of the cart, three detection proximity switches are provided; when the protected equipment area length L is less than the cart end beam length L1, there are N detection proximity switches, N = ROUND (L1/L, 0) + 2.
The detection proximity switches are three, are respectively a left end detection proximity switch, a middle detection proximity switch and a right end detection proximity switch, and are respectively installed at the leftmost side, the middle position and the rightmost side of the side face of the end beam of the cart through a left end detection proximity switch support, a middle detection proximity switch support and a right end detection proximity switch support.
The length of the detection board is larger than the protected equipment area, and protection buffer areas are arranged at the two ends of the detection board.
The thickness of the detection plate is 3mm, the width of the detection plate is 10cm, the length of the detection plate is +4 meters of the length of the protected equipment area, and the two ends of the detection plate are respectively 2 meters longer than the left terminal and the right terminal of the protected equipment area.
The detection plate bracket is a seven-shaped bracket.
The utility model has the advantages that: the detection proximity switch is arranged on the side face of the end beam of the crown block, when a cart runs to an equipment area needing avoiding, a warning signal is sent out, the cart stops running, the cart can continue to run only when a trolley is in a safe position, anti-collision safety protection in the equipment protection area is achieved, and the situation that production equipment is damaged due to collision caused by negligence or lack of confirmation is avoided.
Drawings
Fig. 1 is a partial left side view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a diagram of the relative positions of the sensing plate and the protected device;
fig. 4 is an electrical connection diagram of the present invention;
in the figure: cart 1, pick-up plate 2, pick-up plate support 3, left end detection proximity switch support 4, left end detection proximity switch 5, middle detection proximity switch 6, middle detection proximity switch support 7, right-hand member detection proximity switch 8, right-hand member detection proximity switch support 9, protected equipment region 10, left end detection proximity switch normally closed contact 11, detection relay normally open contact one 12, middle detection proximity switch normally closed contact 13, right-hand member detection proximity switch normally closed contact 14, protection relay 15, detection relay 16, dolly south pre-limiting normally open contact 17, detection relay normally closed contact 18, protection relay normally open contact 19, former cart control circuit 20, detection relay normally open contact two 21, former dolly control circuit 22, bee calling organ 23.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the following will combine the drawings in the embodiment to clearly and completely describe the technical solution in the embodiment of the present invention, and obviously, the embodiment described is a small part of the embodiment of the present invention, rather than the whole embodiment, based on the embodiment of the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work belong to the protection scope of the present invention.
A crown block traveling safety device comprises a detection proximity switch, a detection plate 2, a detection plate bracket 3, a detection proximity switch bracket, a protection relay 15, a detection relay 16 and a buzzer 23, wherein the detection proximity switch is arranged on the side surface of an end beam of a large car 1 through the detection proximity switch bracket, the detection plate 2 is fixed on a steel structure of a factory building at the inner side of a track through the detection plate bracket 3, and the distance between the detection proximity switch and the detection proximity switch is 2 cm;
the detection proximity switch normally closed contact is connected in series with the coil of the detection relay 16; the detection relay normally open contact I12 and the protection relay 15 coil are connected in series; the south pre-limiting normally open contact 17 of the trolley is connected with a coil of the protective relay 15 in series; the detection relay normally-closed contact 18 and the buzzer 23 are connected in series; the protective relay normally open contact 19 is connected in series with the original cart control loop 20; and a second normally open contact 21 of the detection relay is connected with the original trolley control loop 22 in series.
When the length L of the protected equipment area 10 is greater than or equal to the length L1 of the end beam of the cart 1, three detection proximity switches are arranged; when the length L of the protected equipment area 10 is less than the length L1 of the end beam of the cart 1, N detection proximity switches are provided, where N = ROUND (L1/L, 0) + 2.
Detect proximity switch has threely, detects proximity switch 6 and right-hand member detection proximity switch 8 for the left end respectively, detects proximity switch support 4, middle detection proximity switch support 7 and right-hand member detection proximity switch support 9 through the left end respectively and installs leftmost side, intermediate position and rightmost side in 1 end beam side of cart.
The length of the detection plate 2 is larger than that of the protected equipment area 10, and protection buffer areas are arranged at two ends of the detection plate.
The thickness of the detection plate 2 is 3mm, the width of the detection plate is 10cm, the length of the detection plate is 10 meters plus 4 meters of the protected equipment area, and the two ends of the detection plate 2 are respectively 2 meters of the left terminal and the right terminal of the protected equipment area 10.
The detection plate bracket 3 is a seven-shaped bracket.
The utility model discloses, left end detection proximity switch, middle detection proximity switch, right-hand member detection proximity switch install in cart end beam side, respectively in leftmost side, intermediate position, rightmost side. The thickness of the detection plate is 3mm, the width of the detection plate is 10cm (mainly considering that the overhead traveling crane can deviate to a certain degree in the running process), and the length of the detection plate is +4 meters of the protected equipment area (namely, the two ends of the detection plate respectively extend 2 meters of the protected equipment). The detection plate is fixed on the inner side of the track through a seven-shaped bracket, is right above the detection proximity switch, and is 2cm away from the detection proximity switch.
When the length L of the protected equipment area is greater than or equal to the length L1 of the end beam of the overhead travelling crane, three detection proximity switches are installed on the side surface of the end beam. When the length L of the protected equipment area is smaller than the length L1 of the end beam of the overhead traveling crane, N detection proximity switches are required to be installed on the side face of the end beam to guarantee the detection effectiveness. (N = ROUND (L1/L, 0) + 2).
When the overhead traveling crane runs to the left and reaches a protected equipment area, the right-end detection proximity switch detects the detection plate two meters in advance, the normally closed contact of the detection plate is disconnected, and if the trolley is not at the south pre-limiting position (the left side of the running route of the overhead traveling crane cart is set here, namely protected equipment is arranged below the north side of the trolley, the trolley is in contact with the south pre-limiting position to be a position where the trolley can safely pass), the overhead traveling crane cannot run, and the trolley needs to be driven to the south pre-limiting position to move the trolley.
When the overhead traveling crane runs to the left and reaches the protected equipment area, the right-end detection proximity switch detects the detection plate two meters in advance, the normally closed contact of the detection plate is disconnected, and if the trolley is at the south pre-limiting position (the left side of the running route of the overhead traveling crane cart is set here, namely protected equipment is arranged below the north side of the trolley, the trolley contacts the south pre-limiting position to be the position where the cart can safely pass through), the overhead traveling crane cart can continue to run. If the overhead traveling crane runs leftwards, the middle of the overhead traveling crane stops in the protected equipment area, because N (N > = 3) detection proximity switches are arranged on the end face of the overhead traveling crane, at least one detection proximity switch normally-closed point is disconnected in the whole protected equipment area all the time, the trolley cannot run northwards, and only the lifting operation can be carried out.
In practical application, the overhead traveling crane cart 1 moves the in-process to the left, when the distance is still two meters apart by protection equipment region 10, the right-hand member detects proximity switch 8 and senses pick-up plate 2, the right-hand member detects proximity switch normally closed contact 14 disconnection, 16 coils of detection relay lose the electricity, detection relay normally open contact one 12 disconnection, if at this moment the dolly does not in south side position of restricting in advance, dolly south position of restricting normally open contact 17 in the off-state in advance, 15 coils of protection relay lose the electricity, 19 disconnections of protection relay normally open contact, cut off former cart control circuit 20, cart 1 can not move. The trolley needs to be driven to a south pre-limiting position, the south pre-limiting normally open contact 17 of the trolley is closed, the coil of the protective relay 15 is electrified, the normally open contact 19 of the protective relay is closed, the original cart control loop 20 is switched on, and the cart 1 can continue to run.
The overhead traveling crane cart 1 moves the in-process leftwards, when the distance is still two meters apart from by protective apparatus region 10, the right-hand member detects proximity switch 8 and senses pick-up plate 2, the right-hand member detects the disconnection of proximity switch normally closed contact 14, 16 coils of detection relay lose electricity, detect the disconnection of relay normally open contact 12, if at this moment the dolly is in south side position of restricting in advance, dolly south position of restricting in advance normally open contact 17 is in the closed condition, 15 coils of protection relay are in the state of being electrified, protection relay normally open contact 19 is in the closed condition, former cart control circuit 20 is in the on-state, cart 1 can continue the operation.
When the trolley is in the south pre-limiting position, the trolley 1 runs to the left in the protected equipment area 10, all or part of the trolley 1 is still in the protected equipment area 10, at least one of the left-end detection proximity switch 5, the middle detection proximity switch 6 and the right-end detection proximity switch 8 senses the detection plate 2, at least one of the left-end detection proximity switch normally closed contact 11, the middle detection proximity switch normally closed contact 13 and the right-end detection proximity switch normally closed contact 14 is disconnected, the detection relay 16 is powered off, the detection relay normally open contact two 21 is disconnected, the original trolley control circuit 22 is cut off, and the trolley cannot run.
When the cart runs leftwards, as long as the coil of the detection relay 16 is de-energized, the normally closed contact 18 of the detection relay is closed immediately, and the buzzer 23 can send out a signal to prompt the crown block worker.
The rightward running process and the leftward running process of the cart 1 are similar.
Claims (6)
1. A traveling safety device of a crown block is characterized in that: the detection device comprises a detection proximity switch, a detection plate (2), a detection plate bracket (3), a detection proximity switch bracket, a protection relay (15), a detection relay (16) and a buzzer (23), wherein the detection proximity switch is arranged on the side surface of an end beam of a cart (1) through the detection proximity switch bracket, and the detection plate (2) is fixed on a workshop steel structure on the inner side of a track through the detection plate bracket (3) and is right above the detection proximity switch;
the detection proximity switch normally closed contact is connected in series with a coil of a detection relay (16); a normally open contact I (12) of the detection relay is connected with a coil of a protection relay (15) in series; a south pre-limiting normally open contact (17) of the trolley is connected with a coil of a protective relay (15) in series; the detection relay normally-closed contact (18) is connected with the buzzer (23) in series; the normally open contact (19) of the protective relay is connected with the original cart control loop (20) in series; and a second normally open contact (21) of the detection relay is connected with the original trolley control loop (22) in series.
2. The running safety device of a crown block as claimed in claim 1, wherein: when the length L of the protected equipment area (10) is more than or equal to the length L1 of the end beam of the cart (1), three detection proximity switches are arranged; when the length L of the protected equipment area (10) is less than the length L1 of the end beam of the cart (1), N detection proximity switches are provided, and N = ROUND (L1/L, 0) + 2.
3. The running safety device of a crown block as claimed in claim 1, wherein: detect proximity switch has threely, detects proximity switch (6) and right-hand member detection proximity switch (8) for left end detection proximity switch (5), centre respectively, detects proximity switch support (7) and right-hand member detection proximity switch support (9) through left end detection proximity switch support (4), centre and install leftmost side, intermediate position and rightmost side in cart (1) end beam side respectively.
4. The running safety device of a crown block as claimed in claim 1, wherein: the length of the detection plate (2) is larger than that of the protected equipment area (10), and protection buffer areas are arranged at two ends of the detection plate.
5. The running safety device of a crown block as claimed in claim 4, wherein: the thickness of the detection plate (2) is 3mm, the width of the detection plate is 10cm, the length of the detection plate is +4 meters of the length of the protected equipment area (10), and the two ends of the detection plate (2) are respectively 2 meters of the left terminal and the right terminal of the protected equipment area (10).
6. The running safety device of a crown block as claimed in claim 1, wherein: the detection plate bracket (3) is a seven-shaped bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220322087.4U CN217377079U (en) | 2022-02-17 | 2022-02-17 | Travelling safety device of crown block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220322087.4U CN217377079U (en) | 2022-02-17 | 2022-02-17 | Travelling safety device of crown block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217377079U true CN217377079U (en) | 2022-09-06 |
Family
ID=83099453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220322087.4U Active CN217377079U (en) | 2022-02-17 | 2022-02-17 | Travelling safety device of crown block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217377079U (en) |
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2022
- 2022-02-17 CN CN202220322087.4U patent/CN217377079U/en active Active
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