CN105417354A - Safety hook for crane - Google Patents
Safety hook for crane Download PDFInfo
- Publication number
- CN105417354A CN105417354A CN201510839783.7A CN201510839783A CN105417354A CN 105417354 A CN105417354 A CN 105417354A CN 201510839783 A CN201510839783 A CN 201510839783A CN 105417354 A CN105417354 A CN 105417354A
- Authority
- CN
- China
- Prior art keywords
- hook
- travel switch
- bevel gear
- bull stick
- movable block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
-
- 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
- B66C15/06—Arrangements or use of warning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a safety hook for a crane. The safety hook comprises a hook frame, a hook body and safety hook bodies. A fixing plate, a guide rail, a stop block and travel switches C are arranged in the hook frame. The hook frame is provided with a pulley block and a motor. The motor is connected with a drive bevel gear. The drive bevel gear is engaged with a bevel gear A and a bevel gear B. A rotary rod A is arranged in a center hole of the bevel gear A, and a rotary rod B is arranged in a center hole of the bevel gear B. A moving block A is connected to the rotary rod A, and a moving block B is connected to the rotary rod B. The moving block A and the moving block B are connected with the safety hook bodies respectively. Lifting holes, fixing blocks and limiting blocks are arranged on the safety hook bodies. Rubber bodies, pressure sensors, pressing blocks and anti-disengaging nuts are arranged on the upper portions of the hook bodies. The two sides of the lower portion of each hook body are provided with guide sleeves, hook sleeves, lifting holes, travel switches A and travel switches B. The safety hook for the crane has the beneficial effects of being novel in design, compact in structure, high in automation degree and practicability and good in anti-disengaging effect and safety performance.
Description
Technical field
The invention belongs to elevator machinery technical field, be specifically related to a kind of suspension hook, particularly a kind of hoisting crane safety hook.
Background technology
Crane hook is modal a kind of suspender in elevator machinery field, when being mainly used in hoisting crane work, weight is lifted by crane, so the structure of crane hook has direct impact for the lifting effect of weight, at present, conventional crane hanger is the device of suspension hook type mostly, it is little that it has volume, from heavy and light, easy to operate advantage, but this crane hook is due to small volume, lifted weight is limited to, when taking out weight, also very inconvenient, do not have enough spaces to remove to carry the rope of weight when hoisting heavy yet, the weight of lifting can cause the rope above suspension hook to come off due to the swing occurred in lifting process, there is serious consequence, although some anti-drop device good anti-drop effect, but volume is larger, cost is higher, processing difficulties, manufacturing cost is high, therefore, the hoisting crane safety hook that a kind of modern design, compact conformation, degree of automation are high, labour intensity is low, practical, slip-off preventing effect is good, safety performance is good is provided to be necessary.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and the hoisting crane safety hook that a kind of modern design, compact conformation, degree of automation are high, labour intensity is low, practical, slip-off preventing effect is good, safety performance is good is provided.
The object of the present invention is achieved like this: a kind of hoisting crane safety hook, it comprises suspension hook frame, hook body and safe coupler body, adapter plate is provided with in described suspension hook frame, guide rail, block and travel switch C, the upper surface of described suspension hook frame is provided with assembly pulley and motor, the mouth of described motor is connected with driving device, described driving device comprises drive bevel gear, described drive bevel gear is engaged with finishing bevel gear cuter A and finishing bevel gear cuter B, the central hole of described finishing bevel gear cuter A is provided with bull stick A, the central hole of described finishing bevel gear cuter B is provided with bull stick B, described bull stick A and bull stick B is all arranged on adapter plate by bearing, described bull stick A and the other end of bull stick B are all arranged on suspension hook frame by bearing, respectively by the movable block A and movable block B that has been threaded on described bull stick A and bull stick B, described movable block A and movable block B is respectively arranged with guide-track groove, described movable block A and the bottom of movable block B are all connected with safe coupler body, described safe coupler body is provided with lifting hole(eyelet), fixed block and limiting stopper, described fixed block is provided with contact, the top of described hook body is disposed with rubber bodies from top to bottom, pressure sensor, compact heap and screwed retaining ring, the both sides, bottom of described hook body are provided with orienting sleeve, rhampotheca, lifting hole(eyelet), travel switch A and travel switch B, described rhampotheca is provided with mounting groove, rope groove and contact, column sleeve is provided with in described mounting groove, described column sleeve internal fixtion is connected with elastic body, described suspension hook frame is also provided with balance block.
Described column sleeve and orienting sleeve all can be solid drawn pipe and make, and the inner size of described column sleeve is greater than the outside dimension of orienting sleeve, and the connection mode of described elastic body and column sleeve, elastic body and orienting sleeve is for being fixedly connected with.
The quantity of described safe coupler body is 2, and is symmetricly set on the both sides of hook body respectively.
Described motor is clockwise and anticlockwise motor.
The connection mode of described movable block A and guide rail, movable block B and guide rail is sliding block joint.
The quantity of described travel switch C is 2, and is symmetricly set on the both sides of hook body respectively.
On described rhampotheca, the installation site of contact is corresponding with the installation site of travel switch A, on described safe coupler body, the installation site of contact is corresponding with the installation site of travel switch B, and described movable block A is corresponding with the installation site of travel switch C with the installation site of contact on movable block B.
Described travel switch A, travel switch B and travel switch C are all connected with PLC by signal wire (SW), and described PLC is connected with motor by signal wire (SW).
Described bull stick A is contrary with the thread rotary orientation on bull stick B.
Described pressure sensor is connected with PLC by signal wire (SW), and described PLC is connected with combined aural and visual alarm and lifting motor.
Beneficial effect of the present invention: the present invention is by the combination of hook body and safe coupler body, achieve the safety lifting effect of suspension hook, when needing to hoist weight, weight rope is placed on rhampotheca, after starting lifting, rhampotheca depression stroke switch A, travel switch A is made to send a signal to PLC, PLC controls motor and rotates forward, the safe coupler body being simultaneously distributed in hook body both sides moves to the inside, when safe coupler body pushes down travel switch B, motor stalls, safe coupler body stops mobile, weight continues to hoist and transport under the drive of lifting motor, difficult drop-off, operate steadily, safe and reliable, arrange simultaneously the pressure sensor moment monitoring hook body on hook body top lift the weight of weight, ensure that the safe application performance of hook body, extend service life of the present invention, when occurring overweight, lifting motor can not rise, combined aural and visual alarm sends sound simultaneously, light two kinds of alarm signals, to reach the object of reminding field staff to note, when unloading loads, travel switch A upsprings, and send a signal to PLC, PLC controls motor reversal, the safe coupler body being simultaneously distributed in hook body both sides moves laterally, as safe coupler body depression stroke switch C, travel switch C sends a signal to PLC, PLC controls motor stalling, whole lifting process automation degree is high, labour intensity is low, safety performance is good, safe coupler body in the present invention can load capacity, can the actv. danger of avoiding weight rope to come off in hook body, lifting hole(eyelet) is set in the bottom of hook body and safe coupler body simultaneously, many suspension centres purposes of equalizing bar can be realized, add its practicality, the present invention also has the advantage of modern design, compact conformation simultaneously.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of hoisting crane safety hook of the present invention.
Fig. 2 is the birds-eye view of a kind of hoisting crane safety hook of the present invention.
Fig. 3 is the partial enlarged drawing at I place in a kind of hoisting crane safety hook of the present invention.
Fig. 4 is the partial enlarged drawing at II place in a kind of hoisting crane safety hook of the present invention.
Fig. 5 is the structural representation of rhampotheca in a kind of hoisting crane safety hook of the present invention.
Fig. 6 is the electric control theory figure of a kind of hoisting crane safety hook of the present invention.
In figure: 1, suspension hook frame 2, hook body 3, safe coupler body 4, adapter plate 5, guide rail 6, block 7, travel switch C8, assembly pulley 9, motor 10, drive bevel gear 11, finishing bevel gear cuter A12, finishing bevel gear cuter B13, bull stick A14, bull stick B15, movable block A16, movable block B17, guide-track groove 18, lifting hole(eyelet) 19, fixed block 20, limiting stopper 21, contact 22, rubber bodies 23, pressure sensor 24, compact heap 25, screwed retaining ring 26, orienting sleeve 27, rhampotheca 28, travel switch A29, travel switch B30, mounting groove 31, rope groove 32, column sleeve 33, elastic body 34, balance block 35, PLC 36, combined aural and visual alarm 37, lifting motor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment 1
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6, a kind of hoisting crane safety hook, it comprises suspension hook frame 1, hook body 2 and safe coupler body 3, adapter plate 4 is provided with in described suspension hook frame 1, guide rail 5, block 6 and travel switch C7, the upper surface of described suspension hook frame 1 is provided with assembly pulley 8 and motor 9, the mouth of described motor 9 is connected with driving device, described driving device comprises drive bevel gear 10, described drive bevel gear 10 is engaged with finishing bevel gear cuter A11 and finishing bevel gear cuter B12, the central hole of described finishing bevel gear cuter A11 is provided with bull stick A13, the central hole of described finishing bevel gear cuter B12 is provided with bull stick B14, described bull stick A13 and bull stick B14 is all arranged on adapter plate 4 by bearing, described bull stick A13 and the other end of bull stick B14 are all arranged on suspension hook frame 1 by bearing, respectively by the movable block A15 and movable block B16 that has been threaded on described bull stick A13 and bull stick B14, described movable block A15 and movable block B16 is respectively arranged with guide-track groove 17, described movable block A15 and the bottom of movable block B16 are all connected with safe coupler body 3, described safe coupler body 3 is provided with lifting hole(eyelet) 18, fixed block 19 and limiting stopper 20, described fixed block 19 is provided with contact 21, the top of described hook body 2 is disposed with rubber bodies 22 from top to bottom, pressure sensor 23, compact heap 24 and screwed retaining ring 25, the both sides, bottom of described hook body 2 are provided with orienting sleeve 26, rhampotheca 27, lifting hole(eyelet) 18, travel switch A28 and travel switch B29, described rhampotheca 27 is provided with mounting groove 30, rope groove 31 and contact 21, column sleeve 32 is provided with in described mounting groove 30, described column sleeve 32 internal fixtion is connected with elastic body 33, described suspension hook frame 1 is also provided with balance block 34.
The present invention passes through the combination of hook body 2 and safe coupler body 3, achieve the safety lifting effect of suspension hook, when needing to hoist weight, weight rope is placed on rhampotheca 27, after starting lifting, rhampotheca 27 depression stroke switch A28, travel switch A28 is made to send a signal to PLC 35, PLC 35 controls motor 9 and rotates forward, the safe coupler body 3 being simultaneously distributed in hook body 2 both sides moves to the inside, when safe coupler body 3 pushes down travel switch B29, motor 9 stops operating, safe coupler body 3 stops mobile, weight continues to hoist and transport under the drive of lifting motor 37, difficult drop-off, operate steadily, safe and reliable, arrange simultaneously the pressure sensor 23 moment monitoring hook body 2 on hook body 2 top lift the weight of weight, ensure that the safe application performance of hook body 2, extend service life of the present invention, when occurring overweight, lifting motor 37 can not rise, combined aural and visual alarm 36 sends sound simultaneously, light two kinds of alarm signals, to reach the object of reminding field staff to note, when unloading loads, travel switch A28 upsprings, and send a signal to PLC 35, PLC 35 controls motor 9 and reverses, the safe coupler body 3 being simultaneously distributed in hook body 2 both sides moves laterally, as safe coupler body 3 depression stroke switch C7, travel switch C7 sends a signal to PLC 35, PLC 35 controls motor 9 stall, whole lifting process automation degree is high, labour intensity is low, safety performance is good, safe coupler body 3 in the present invention can load capacity, can the actv. danger of avoiding weight rope to come off in hook body, lifting hole(eyelet) 18 is set in the bottom of hook body 2 and safe coupler body 3 simultaneously, many suspension centres purposes of equalizing bar can be realized, add its practicality, the present invention also has the advantage of modern design, compact conformation simultaneously.
Embodiment 2
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6, a kind of hoisting crane safety hook, it comprises suspension hook frame 1, hook body 2 and safe coupler body 3, adapter plate 4 is provided with in described suspension hook frame 1, guide rail 5, block 6 and travel switch C7, the upper surface of described suspension hook frame 1 is provided with assembly pulley 8 and motor 9, the mouth of described motor 9 is connected with driving device, described driving device comprises drive bevel gear 10, described drive bevel gear 10 is engaged with finishing bevel gear cuter A11 and finishing bevel gear cuter B12, the central hole of described finishing bevel gear cuter A11 is provided with bull stick A13, the central hole of described finishing bevel gear cuter B12 is provided with bull stick B14, described bull stick A13 and bull stick B14 is all arranged on adapter plate 4 by bearing, described bull stick A13 and the other end of bull stick B14 are all arranged on suspension hook frame 1 by bearing, respectively by the movable block A15 and movable block B16 that has been threaded on described bull stick A13 and bull stick B14, described movable block A15 and movable block B16 is respectively arranged with guide-track groove 17, described movable block A15 and the bottom of movable block B16 are all connected with safe coupler body 3, described safe coupler body 3 is provided with lifting hole(eyelet) 18, fixed block 19 and limiting stopper 20, described fixed block 19 is provided with contact 21, the top of described hook body 2 is disposed with rubber bodies 22 from top to bottom, pressure sensor 23, compact heap 24 and screwed retaining ring 25, the both sides, bottom of described hook body 2 are provided with orienting sleeve 26, rhampotheca 27, lifting hole(eyelet) 18, travel switch A28 and travel switch B29, described rhampotheca 27 is provided with mounting groove 30, rope groove 31 and contact 21, column sleeve 32 is provided with in described mounting groove 30, described column sleeve 32 internal fixtion is connected with elastic body 33, described suspension hook frame 1 is also provided with balance block 34.
Described column sleeve 32 and orienting sleeve 26 all can be solid drawn pipe and make, and the inner size of described column sleeve 32 is greater than the outside dimension of orienting sleeve 26, and the connection mode of described elastic body 33 and column sleeve 32, elastic body 33 and orienting sleeve 26 is for being fixedly connected with; The quantity of described safe coupler body 3 is 2, and is symmetricly set on the both sides of hook body 2 respectively; Described motor 9 is clockwise and anticlockwise motor; The connection mode of described movable block A15 and guide rail 5, movable block B16 and guide rail 5 is sliding block joint; The quantity of described travel switch C7 is 2, and is symmetricly set on the both sides of hook body 2 respectively; On described rhampotheca 27, the installation site of contact 21 is corresponding with the installation site of travel switch A28, on described safe coupler body 3, the installation site of contact 21 is corresponding with the installation site of travel switch B29, and described movable block A15 is corresponding with the installation site of travel switch C7 with the installation site of contact 21 on movable block B16; Described travel switch A28, travel switch B29 and travel switch C7 are all connected with PLC 35 by signal wire (SW), and described PLC 35 is connected with motor 9 by signal wire (SW); Described bull stick A13 is contrary with the thread rotary orientation on bull stick B14; Described pressure sensor 23 is connected with PLC 35 by signal wire (SW), and described PLC 35 is connected with combined aural and visual alarm 36 and lifting motor 37.
The present invention passes through the combination of hook body 2 and safe coupler body 3, achieve the safety lifting effect of suspension hook, when needing to hoist weight, weight rope is placed on rhampotheca 27, after starting lifting, rhampotheca 27 depression stroke switch A28, travel switch A28 is made to send a signal to PLC 35, PLC 35 controls motor 9 and rotates forward, the safe coupler body 3 being simultaneously distributed in hook body 2 both sides moves to the inside, when safe coupler body 3 pushes down travel switch B29, motor 9 stops operating, safe coupler body 3 stops mobile, weight continues to hoist and transport under the drive of lifting motor 37, difficult drop-off, operate steadily, safe and reliable, arrange simultaneously the pressure sensor 23 moment monitoring hook body 2 on hook body 2 top lift the weight of weight, ensure that the safe application performance of hook body 2, extend service life of the present invention, when occurring overweight, lifting motor 37 can not rise, combined aural and visual alarm 36 sends sound simultaneously, light two kinds of alarm signals, to reach the object of reminding field staff to note, when unloading loads, travel switch A28 upsprings, and send a signal to PLC 35, PLC 35 controls motor 9 and reverses, the safe coupler body 3 being simultaneously distributed in hook body 2 both sides moves laterally, as safe coupler body 3 depression stroke switch C7, travel switch C7 sends a signal to PLC 35, PLC 35 controls motor 9 stall, whole lifting process automation degree is high, labour intensity is low, safety performance is good, safe coupler body 3 in the present invention can load capacity, can the actv. danger of avoiding weight rope to come off in hook body, lifting hole(eyelet) 18 is set in the bottom of hook body 2 and safe coupler body 3 simultaneously, many suspension centres purposes of equalizing bar can be realized, add its practicality, the present invention also has the advantage of modern design, compact conformation simultaneously.
Claims (10)
1. a hoisting crane safety hook, it comprises suspension hook frame, hook body and safe coupler body, it is characterized in that: in described suspension hook frame, be provided with adapter plate, guide rail, block and travel switch C, the upper surface of described suspension hook frame is provided with assembly pulley and motor, the mouth of described motor is connected with driving device, described driving device comprises drive bevel gear, described drive bevel gear is engaged with finishing bevel gear cuter A and finishing bevel gear cuter B, the central hole of described finishing bevel gear cuter A is provided with bull stick A, the central hole of described finishing bevel gear cuter B is provided with bull stick B, described bull stick A and bull stick B is all arranged on adapter plate by bearing, described bull stick A and the other end of bull stick B are all arranged on suspension hook frame by bearing, respectively by the movable block A and movable block B that has been threaded on described bull stick A and bull stick B, described movable block A and movable block B is respectively arranged with guide-track groove, described movable block A and the bottom of movable block B are all connected with safe coupler body, described safe coupler body is provided with lifting hole(eyelet), fixed block and limiting stopper, described fixed block is provided with contact, the top of described hook body is disposed with rubber bodies from top to bottom, pressure sensor, compact heap and screwed retaining ring, the both sides, bottom of described hook body are provided with orienting sleeve, rhampotheca, lifting hole(eyelet), travel switch A and travel switch B, described rhampotheca is provided with mounting groove, rope groove and contact, column sleeve is provided with in described mounting groove, described column sleeve internal fixtion is connected with elastic body, described suspension hook frame is also provided with balance block.
2. a kind of hoisting crane safety hook according to claim 1, it is characterized in that: described column sleeve and orienting sleeve all can be solid drawn pipe and make, the inner size of described column sleeve is greater than the outside dimension of orienting sleeve, and the connection mode of described elastic body and column sleeve, elastic body and orienting sleeve is for being fixedly connected with.
3. a kind of hoisting crane safety hook according to claim 1, is characterized in that: the quantity of described safe coupler body is 2, and is symmetricly set on the both sides of hook body respectively.
4. a kind of hoisting crane safety hook according to claim 1, is characterized in that: described motor is clockwise and anticlockwise motor.
5. a kind of hoisting crane safety hook according to claim 1, is characterized in that: the connection mode of described movable block A and guide rail, movable block B and guide rail is sliding block joint.
6. a kind of hoisting crane safety hook according to claim 1, is characterized in that: the quantity of described travel switch C is 2, and is symmetricly set on the both sides of hook body respectively.
7. a kind of hoisting crane safety hook according to claim 1, it is characterized in that: on described rhampotheca, the installation site of contact is corresponding with the installation site of travel switch A, on described safe coupler body, the installation site of contact is corresponding with the installation site of travel switch B, and described movable block A is corresponding with the installation site of travel switch C with the installation site of contact on movable block B.
8. a kind of hoisting crane safety hook according to claim 1, is characterized in that: described travel switch A, travel switch B and travel switch C are all connected with PLC by signal wire (SW), and described PLC is connected with motor by signal wire (SW).
9. a kind of hoisting crane safety hook according to claim 1, is characterized in that: described bull stick A is contrary with the thread rotary orientation on bull stick B.
10. a kind of hoisting crane safety hook according to claim 1, it is characterized in that: described pressure sensor is connected with PLC by signal wire (SW), described PLC is connected with combined aural and visual alarm and lifting motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839783.7A CN105417354B (en) | 2015-11-27 | 2015-11-27 | A kind of crane safety hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839783.7A CN105417354B (en) | 2015-11-27 | 2015-11-27 | A kind of crane safety hook |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105417354A true CN105417354A (en) | 2016-03-23 |
| CN105417354B CN105417354B (en) | 2017-05-31 |
Family
ID=55495979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510839783.7A Active CN105417354B (en) | 2015-11-27 | 2015-11-27 | A kind of crane safety hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105417354B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010022094A (en) * | 2008-07-08 | 2010-01-28 | Panasonic Electric Works Co Ltd | Half bridge circuit |
| CN202296838U (en) * | 2011-09-30 | 2012-07-04 | 河南省矿山起重机有限公司 | Crane hook set and crane using same |
| CN103950828A (en) * | 2014-05-15 | 2014-07-30 | 上海宝松盐城重型机械工程有限公司 | Hook 90-DEG location rotation-preventing device for crane |
| CN204138161U (en) * | 2014-10-08 | 2015-02-04 | 杭州浙起机械有限公司 | A kind of electric block lifting hook device |
-
2015
- 2015-11-27 CN CN201510839783.7A patent/CN105417354B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010022094A (en) * | 2008-07-08 | 2010-01-28 | Panasonic Electric Works Co Ltd | Half bridge circuit |
| CN202296838U (en) * | 2011-09-30 | 2012-07-04 | 河南省矿山起重机有限公司 | Crane hook set and crane using same |
| CN103950828A (en) * | 2014-05-15 | 2014-07-30 | 上海宝松盐城重型机械工程有限公司 | Hook 90-DEG location rotation-preventing device for crane |
| CN204138161U (en) * | 2014-10-08 | 2015-02-04 | 杭州浙起机械有限公司 | A kind of electric block lifting hook device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105417354B (en) | 2017-05-31 |
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Inventor after: Wang Xiaofeng Inventor after: Wang Chao Inventor before: Liu Guanglei Inventor before: Cui Li Inventor before: Liu Jiwei Inventor before: Guo Shichao |
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