CN212308879U - Safety device for preventing falling of speed difference of aerial elevator - Google Patents
Safety device for preventing falling of speed difference of aerial elevator Download PDFInfo
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- CN212308879U CN212308879U CN202021019076.6U CN202021019076U CN212308879U CN 212308879 U CN212308879 U CN 212308879U CN 202021019076 U CN202021019076 U CN 202021019076U CN 212308879 U CN212308879 U CN 212308879U
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- buffer
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- 238000005303 weighing Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000003139 buffering effect Effects 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an aerial lift speed difference prevents weighing down breaker cooperates aerial lifting equipment to use, for example theater, bar and large-scale performance ground. The falling speed difference of the object is used for automatic control, the high hanging position and the low hanging position are used, and the safety rope can freely stretch along with the hanging object in normal use. 1. The lifting speed of the lifter can be adjusted, and the locking speed range is 300mm/S-2000 mm/S; 2. when the anti-falling safety device is locked, the falling speed of the hanging object is slowly reduced under the action of the buffer, so that the tension born by the safety rope after being locked instantly and the bounce of the load are reduced. When the load of the elevator in operation stalls, the steel wire rope of the hanging object breaks or the elevator breaks down to cause the hanging object to fall down, the pulling-out speed of the safety rope is obviously increased, and after the set speed is reached, the locking system in the aerial elevator speed difference anti-falling safety device automatically locks; the locking is stable, and factor of safety is high, and the good reliability to guaranteed ground personnel's life safety and the damage of heavy burden equipment effectively.
Description
Technical Field
The utility model relates to a lifting machinery technical field specifically is a safety device is prevented weighing down by aerial lift speed difference.
Background
Aerial lift, or more generally aerial platform for moving personnel, whether they are self-propelled or not, comprises a lifting structure and a platform on which one or several persons are positioned to perform various tasks. The platform typically includes a console that groups together a number of manual control members to enable control of the aerial lift.
The anti-falling safety device is the most important safety device in the construction elevator, and along with the development of the construction engineering machinery technology, users also put forward higher requirements on the anti-falling safety device.
The anti-falling safety device on the overhead hoist is used as the overhead hoist to play a role in braking protection when a hoisted object falls due to an accident. However, the locking structure of the existing anti-falling safety device is unstable, automatic locking cannot be achieved, the reliability is poor, the life safety of ground personnel cannot be guaranteed, and load-bearing equipment is easily damaged.
Accordingly, there is a need to provide an aerial lift differential fall arrest safer that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides an aim at provides an aerial lift speed difference prevents weighing down breaker to solve the problem among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an aerial lift speed difference anti-falling safety device comprises a support baffle, a wire coil baffle, a safety rope wire coil, a reverse restorer, a centrifugal force adjusting rod, a gear plate, a rod sleeve, a centrifuge, a buffer, a clamp spring bearing, a gasket, a support connecting shaft sleeve, an adjusting nut and a safety rope;
the number of the bracket baffles is two, the transmission shaft is arranged between the bracket baffles, the wire coil baffles are arranged between the bracket baffles, the safety rope wire coil is arranged between the wire coil baffles, and the safety rope is wound on the safety rope wire coil; a reverse restorer is arranged on the side surface of the safety rope reel; the centrifuge is located the safety rope drum, comprises two cylinder counter weights, connecting plate and centrifugal arm, and the centrifugal arm is the connecting piece of cylinder counter weight and locking component, the locking component sets up in toothed disc one side, the volute spiral spring is installed to the transmission shaft output, the buffer comprises buffer beam and buffering pull spring.
As the utility model discloses a further scheme, two the support baffle all is 90 and bends, divide into perpendicular and horizontal plane after the support baffle bends, in two faces, has four support connecting holes, a transmission shaft mounting hole and a buffer beam movable hole on the perpendicular of support baffle, and the horizontal plane of support baffle is the installation face, has two screw mounting holes on the horizontal plane.
As a further proposal of the utility model, the movement angle of the reverse restorer is 0-16 degrees, and the reverse restorer is provided with a torsional spring used for the reverse restorer to reach the original position.
As a further scheme of the utility model, centrifugal force adjusts the pole and comprises lead screw and spring, and centrifugal force adjusts the pole connection and adjusts the centrifuge, and the position sleeve of the lead screw of centrifugal force adjusts the pole is the rod cover.
As a further aspect of the present invention, the gear plate has a 90 ° rotation space, and a buffer rod hole is further provided on the support baffle plate to the side of the gear plate.
As a further scheme of the utility model, the bearing is all installed at the transmission shaft both ends, and the bearing is installed in the transmission shaft mounting hole of two support baffles, is fixed in the support baffle through the bearing housing on, and volute spiral spring is installed to the transmission shaft output.
As a further scheme of the utility model, the buffer beam is connected with the one end of buffering extension spring, and buffering extension spring other end linking bridge baffle, the buffer beam slides and sets up in the buffer beam movable hole.
As a further scheme of the utility model, the jump ring bearing is installed between gear plate and transmission shaft, and the gasket setting is between jump ring bearing and bearing, the leg joint axle sleeve is installed on the transmission shaft, installs the drum backup pad on the leg joint axle sleeve, and the safety rope drum is installed in the drum backup pad.
As a further proposal of the utility model, the adjusting nut is arranged on the screw rod of the centrifugal force adjusting rod.
To sum up, compared with the prior art, the embodiment of the utility model has the following beneficial effects:
the utility model discloses a safety device is prevented weighing down by air lift speed difference cooperates aerial jacking equipment to use, for example theater, bar and large-scale performance ground. The falling speed difference of the object is utilized to automatically control the hanging position, the safety rope is used at high hanging position and low hanging position, and the safety rope can freely stretch along with the hanging object when the safety rope is normally used. When the load of the elevator in operation stalls, the steel wire rope of the hanging object breaks or the elevator breaks down to cause the hanging object to fall down, the pulling-out speed of the safety rope is obviously increased, and after the set speed is reached, the locking system in the aerial elevator speed difference anti-falling safety device automatically locks; the locking is stable, and factor of safety is high, and the good reliability to guaranteed ground personnel's life safety and the damage of heavy burden equipment effectively.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a rear view of the differential speed anti-falling safety device of the aerial lift of the embodiment of the utility model.
Fig. 2 is a side view of the differential speed anti-falling safety device of the aerial lift of the embodiment of the utility model.
Fig. 3 is a front view of the differential speed anti-falling safety device of the aerial lift of the embodiment of the utility model.
Fig. 4 is a top view of the differential speed anti-falling safety device of the overhead hoist of the embodiment of the utility model.
Fig. 5 is a schematic view of an application structure of the differential speed anti-falling safety device of the overhead hoist of the embodiment of the utility model.
Reference numerals: 1-bracket baffle, 2-wire coil baffle, 3-centrifugal arm, 4-safety rope wire coil, 5-reverse restorer, 6-locking member, 7-centrifugal force adjusting rod, 8-gear plate, 9-rod sleeve, 10-transmission shaft, 11-centrifuge, 12-buffer, 13-clamp spring bearing, 14-gasket, 15-bearing, 16-bracket connecting shaft sleeve, 17-adjusting nut, 18-wire coil supporting plate, 19-volute spring, 20-buffer tension spring and 21-safety rope.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 to 5, the speed difference anti-falling safety device for the overhead hoist comprises support baffles 1, a wire coil baffle 2, a centrifugal arm 3, a safety rope wire coil 4, a reverse restorer 5, a locking member 6, a centrifugal force adjusting rod 7, a gear plate 8, a rod sleeve 9, a transmission shaft 10, a centrifuge 11, a buffer 12, a snap spring bearing 13, a gasket 14, a bearing 15, a support connecting shaft sleeve 16, an adjusting nut 17, a wire coil supporting plate 18, a volute spiral spring 19, a buffer tension spring 20 and a safety rope 21, wherein the number of the support baffles 1 is two, the transmission shaft 10 is arranged between the support baffles 1, the support baffles 1 are used as one of important parts of the anti-falling safety device, the support baffles 1 are stressed main parts, each support baffle 1 is bent at 90 degrees, the support baffles 1 are divided into a vertical surface and a horizontal surface after being bent, and in the two surfaces, four support connecting holes are formed in the, The bracket baffle plate comprises a transmission shaft 10 mounting hole and a buffer rod movable hole, wherein the horizontal plane of the bracket baffle plate 1 is a mounting surface, and two screw mounting holes are formed in the horizontal plane; when the anti-falling safety device is installed, the horizontal planes of the two bracket baffles 1 are used as installation surfaces and are used for being in contact with an installation rack of the aerial lift, and the anti-falling safety device is installed and fixed by a screw which penetrates through a screw installation hole on the horizontal plane;
a wire coil baffle 2 is arranged between the bracket baffles 1, a safety rope wire coil 4 is arranged between the wire coil baffles 2, and a safety rope 21 is wound on the safety rope wire coil 4; the wire coil baffle 2 ensures that the safety rope 21 can be wound in the range of the safety rope wire coil 4 when the safety rope 21 is wound, so that deviation is prevented.
The safety rope wire coil 4 is internally provided with a centrifugal arm 3, the centrifugal arm 3 is a connecting piece of a cylindrical balance weight and a locking component 6, the locking component 6 is arranged on one side of a gear plate 8, and when the anti-falling safety device hanger falls down, the locking component 6 can clamp the gear plate 8 to achieve the locking effect.
The safety rope wire coil 4 side-mounting has reverse restorer 5, the biggest motion angle of reverse restorer 5 is about 16, and when 5 rated speed of reverse restorer was rotatory, the position was unchangeable on the position on the original point at the 5 end of reverse restorer, and after 5 rotation rate of reverse restorer exceeded the speed of injecing, the counter weight will trigger reverse restorer 5 and move outside the circle and reach the position of injecing, locking member 6 is under the effort of its upper torsion spring, and locking member 6 resets. When the safety rope wire coil 4 rotates reversely, the reverse restorer 5 reaches the original position under the acting force of the torsion spring on the reverse restorer 5.
The centrifugal force adjusting rod 7 is composed of a screw rod and a spring, the centrifugal force adjusting rod 7 is connected with the adjusting centrifuge 11, and the centrifugal force adjusting function is achieved by adjusting the position of the centrifuge 11.
When the safety rope wire coil 4 rotates at a high speed, the gear plate 8 and the locking member 6 interact with each other, so that the locking effect is achieved. Conventional speed difference safety hook gear plate 8 is fixed, the utility model discloses a gear plate 8 has 90 rotatory spaces, still is equipped with the buffer beam movable hole on the support baffle 1 of gear plate 8 side.
The rod sleeve 9 is a positioning sleeve of a screw rod of the centrifugal force adjusting rod 7, the transmission shaft 10 penetrates through the safety rope wire coil 4 and the gear plate 8, bearings 15 are mounted at two ends of the transmission shaft 10, the bearings 15 are mounted in transmission shaft mounting holes of the two bracket baffles 1, and the transmission shaft is fixed on the bracket baffles 1 through the bearings 15;
volute spiral spring 19 is installed to transmission shaft 10 output, and volute spiral spring 19 provides power for retrieving safety rope 21 in the embodiment of the utility model provides, preferably, safety rope 21's length is 10 m.
The centrifuge 11 is located safety rope drum 4, comprises two cylinder counter weights, connecting plate and centrifugal arm 3, and when safety rope drum 4 was rotatory, the cylinder counter weight was under the traction force of connecting plate, and the counter weight is at the initial point position of setting for toward the motion of circle both sides, and after safety rope drum 4 rotation rate exceeded the speed of injecing, the counter weight will reach terminal position, then triggers reverse restorer 5.
Jump ring bearing 13 is installed between gear plate 8 and transmission shaft 10, and gasket 14 sets up between jump ring bearing 13 and bearing 15, leg joint axle sleeve 16 is installed on transmission shaft 10, installs drum backup pad 18 on the leg joint axle sleeve 16, and safety rope drum 4 is installed in drum backup pad 18, adjusting nut 17 installs on centrifugal force adjusts the lead screw of pole 7 for thereby adjust the position of centrifuge 11 and reach the effect of adjusting centrifugal force.
Example 2
The speed difference anti-falling safety device for the aerial lift comprises support baffles 1, wire coil baffles 2, centrifugal arms 3, safety rope wire coils 4, a reverse restorer 5, locking members 6, centrifugal adjusting rods 7, gear plates 8, rod sleeves 9, transmission shafts 10, centrifuges 11, buffers 12, clamp spring bearings 13, gaskets 14, bearings 15, support connecting shaft sleeves 16, adjusting nuts 17, wire coil supporting plates 18, volute springs 19, buffer tension springs 20 and safety ropes 21, the number of the support baffles 1 is two, the transmission shafts 10 are installed between the support baffles 1, the support baffles 1 serve as one of important parts of the anti-falling safety device, the support baffles 1 are stressed main parts, and each support baffle 1 is bent by 90 degrees.
The support baffle plate 1 is divided into a vertical surface and a horizontal surface after being bent, wherein in the two surfaces, the vertical surface of the support baffle plate 1 is provided with four support connecting holes, a transmission shaft 10 mounting hole and a buffer rod movable hole, the horizontal surface of the support baffle plate 1 is a mounting surface, and the horizontal surface is provided with two screw mounting holes;
when the anti-falling safety device is installed, the horizontal planes of the two support baffles 1 are used as installation surfaces and are used for being in contact with a steel structure of the overhead hoist, and the support baffles 1 can be welded on the steel structure of the overhead hoist in an electric welding reinforcement installation mode to install and fix the anti-falling safety device.
The utility model discloses a theory of operation is:
the speed difference falling-preventing safety device of the aerial lift utilizes the falling speed difference of an object to carry out automatic control, and is used for hanging high and low. When in use, the safety rope 21 can be used only by being arranged on a steel structure and hanging a hanging object on an iron hook. When in normal use, the safety rope 21 can freely stretch along with the hanging object. When the load of the elevator in operation stalls, the steel wire rope of the hanging object breaks or the elevator breaks down to cause the hanging object to fall down, the pulling-out speed of the safety rope 21 is obviously increased, and after the set speed is reached, the locking system in the aerial elevator speed difference anti-falling safety device automatically locks. The locking speed range of the safety rope 21 is 300mm/S-2000mm/S and is adjustable.
Therefore, the utility model discloses a speed differential safety hook: 1. the lifting speed of the lifter can be adjusted, and the locking speed range is 300mm/S-2000 mm/S; 2. when the anti-falling safety device is locked, the falling speed of the hanging object is slowly reduced under the action of the buffer, so that the tension born by the safety rope after being locked instantly and the bounce of the load are reduced.
The utility model discloses a locking means structure that speed difference safety hook adopted, the locking is stable, and factor of safety is high, and the good reliability to ground personnel's life safety and the damage of heavy burden equipment have been guaranteed effectively.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongings the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. Those skilled in the art will appreciate that other embodiments of the invention can be devised which do not require inventive effort and which fall within the scope of the present invention.
Claims (9)
1. The utility model provides an aerial lift speed difference prevents weighing down breaker, includes bracket baffle (1), drum baffle (2), safety rope drum (4), reverse restorer (5), centrifugal force adjusting rod (7), toothed disc (8), pole cover (9), centrifuge (11), buffer (12), jump ring bearing (13), gasket (14), leg joint axle sleeve (16), adjusting nut (17) and safety rope (21), its characterized in that:
the number of the bracket baffles (1) is two, the transmission shafts (10) are arranged between the bracket baffles (1), the wire coil baffles (2) are arranged between the bracket baffles (1), the safety rope wire coil (4) is arranged between the wire coil baffles (2), and the safety rope (21) is wound on the safety rope wire coil (4); a reverse restorer (5) is arranged on the side surface of the safety rope wire coil (4); centrifuge (11) are located safety rope drum (4), constitute by two cylinder counter weights, connecting plate and centrifugal arm (3), and centrifugal arm (3) are the connecting piece of cylinder counter weight and locking component (6), locking component (6) set up in toothed disc (8) one side, volute spiral spring (19) are installed to transmission shaft (10) output, buffer (12) comprise buffer beam and buffering extension spring (20).
2. The differential speed anti-falling safety device of the overhead hoist according to claim 1, characterized in that the two bracket baffles (1) are both bent at 90 degrees, the bracket baffles (1) are divided into a vertical surface and a horizontal surface after being bent, in the two surfaces, the vertical surface of the bracket baffle (1) is provided with four bracket connecting holes, a transmission shaft (10) mounting hole and a buffer rod movable hole, the horizontal surface of the bracket baffle (1) is a mounting surface, and the horizontal surface is provided with two screw mounting holes.
3. The aerial lift speed difference anti-falling safety device as claimed in claim 2, wherein the movement angle of the reverse restorer (5) is 0-16 degrees, and a torsion spring for the reverse restorer (5) to reach the origin position is arranged on the reverse restorer (5).
4. The aerial lift speed difference anti-falling safety device as claimed in claim 2, wherein the centrifugal force adjusting rod (7) is composed of a screw rod and a spring, the centrifugal force adjusting rod (7) is connected with the adjusting centrifuge (11), and a positioning sleeve of the screw rod of the centrifugal force adjusting rod (7) is a rod sleeve (9).
5. The aerial lift speed difference anti-falling safety device as claimed in claim 4, wherein the gear plate (8) has a 90-degree rotation space, and a buffer rod moving hole is further formed in the bracket baffle (1) on the side surface of the gear plate (8).
6. The aerial lift speed difference anti-falling safety device as claimed in claim 5, wherein bearings (15) are mounted at two ends of the transmission shaft (10), the bearings (15) are mounted in transmission shaft mounting holes of the two bracket baffles (1) and are fixed on the bracket baffles (1) through the bearings (15), and a volute spiral spring (19) is mounted at the output end of the transmission shaft (10).
7. The differential falling protector of the aerial lift according to claim 6, characterized in that the buffer rod is connected with one end of a buffer tension spring (20), the other end of the buffer tension spring (20) is connected with a bracket baffle (1), and the buffer rod is slidably arranged in a buffer rod movable hole.
8. The aerial lift speed difference anti-falling safety device according to claim 7, wherein the snap spring bearing (13) is installed between the gear plate (8) and the transmission shaft (10), the gasket (14) is arranged between the snap spring bearing (13) and the bearing (15), the bracket connecting shaft sleeve (16) is installed on the transmission shaft (10), the bracket connecting shaft sleeve (16) is provided with a wire coil support plate (18), and the safety rope wire coil (4) is installed on the wire coil support plate (18).
9. The aerial lift speed differential fall arrest safety device according to claim 4, characterized in that the adjusting nut (17) is mounted on a screw of a centrifugal force adjusting lever (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021019076.6U CN212308879U (en) | 2020-06-05 | 2020-06-05 | Safety device for preventing falling of speed difference of aerial elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021019076.6U CN212308879U (en) | 2020-06-05 | 2020-06-05 | Safety device for preventing falling of speed difference of aerial elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212308879U true CN212308879U (en) | 2021-01-08 |
Family
ID=74025195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021019076.6U Expired - Fee Related CN212308879U (en) | 2020-06-05 | 2020-06-05 | Safety device for preventing falling of speed difference of aerial elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212308879U (en) |
-
2020
- 2020-06-05 CN CN202021019076.6U patent/CN212308879U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210108 |