CN220907013U - Double-safety electric hoist - Google Patents
Double-safety electric hoist Download PDFInfo
- Publication number
- CN220907013U CN220907013U CN202322803484.0U CN202322803484U CN220907013U CN 220907013 U CN220907013 U CN 220907013U CN 202322803484 U CN202322803484 U CN 202322803484U CN 220907013 U CN220907013 U CN 220907013U
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- Prior art keywords
- wire rope
- shell
- electric hoist
- steel wire
- fixedly connected
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000004804 winding Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Jib Cranes (AREA)
Abstract
The utility model discloses a double-insurance electric hoist, which relates to the technical field of electric hoists and comprises a supporting piece movably connected to a gantry crane beam, wherein two sides of the supporting piece are respectively and fixedly connected with a motor group, a steel wire rope is arranged between the two motor groups, two ends of the steel wire rope are respectively and fixedly connected in the motor groups, the two motor groups can independently operate, the two motor groups respectively drive two ends of the steel wire rope to rewind, a lifting hook is hung on the steel wire rope, and a limiting structure for limiting the lifting hook from separating from the steel wire rope is arranged on the lifting hook. Through setting up two motor groups, drive one of them, just can accomplish the lift of lifting hook, avoid a motor to take place to damage, influence the whole use, reach the effect of double insurance.
Description
Technical Field
The utility model relates to an electric hoist, in particular to a double-insurance electric hoist.
Background
The electric hoist is a special lifting device, is arranged on the crown block and the gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used for places such as industrial and mining enterprises, storage, wharfs and the like.
The electric hoist in the prior art controls the steel wire through the single engine, achieves the effect of facilitating the vertical movement of the lifting hook, when the engine is started, the lifting hook can move, the output shaft of the engine can roll or put down the steel wire rope, so that the lifting hook is driven to move up and down, but when the engine fails or fails, the lifting hook of the electric hoist cannot move on line, and therefore the electric hoist in the prior art has the problem that the single engine cannot be emergent when the engine is damaged.
There is therefore a need to propose a new solution to this problem
Disclosure of utility model
In order to solve the technical problems, the utility model provides the double-insurance electric hoist, which achieves the double-insurance effect through the structural arrangement and can complete emergency operation.
The technical scheme of the utility model is as follows:
The utility model provides a double insurance electric block, includes the support piece of swing joint on the portal crane crossbeam, a motor group is fixedly connected with respectively to the both sides of support piece, two be equipped with wire rope between the motor group, wire rope's both ends are fixedly connected respectively in the motor group, two motor group all can move alone, two the both ends rollback of wire rope is driven respectively to the motor group, the hanging is equipped with the lifting hook on the wire rope, be equipped with the limit structure that is used for restricting it breaks away from wire rope on the lifting hook.
The utility model further provides that the motor group comprises a winding drum fixedly connected to the side wall of the supporting piece and a lifting motor for controlling the winding drum to rotate, and the end part of the steel wire rope is fixedly connected to the winding drum through a pressing plate.
The utility model is further arranged that the lifting motors positioned at the two sides of the supporting piece are respectively connected with an independent electric control system.
The utility model further provides that the limiting structure comprises a protecting shell and a pulley hung on the steel wire rope, wherein the pulley is rotatably connected in the protecting shell, and the protecting shell is provided with a rope threading opening through which the steel wire rope passes.
The utility model further provides that the protective shell comprises an upper shell and a lower shell which are detachably connected in the vertical direction, the lifting hook is rotatably connected to the bottom of the lower shell in the horizontal direction, the pulley is rotatably connected to the upper shell, one side, opposite to the upper shell, of the lower shell is open, and the upper shell is embedded into the lower shell.
The utility model is further characterized in that the peripheral walls of the upper shell and the lower shell are respectively provided with an upper notch and a lower notch which are symmetrically arranged, and the upper notch and the lower notch are mutually communicated to form a rope threading opening.
The utility model further provides that the upper shell and the lower shell are fixedly connected through bolts.
The utility model is further arranged that the top of the supporting piece is fixedly connected with an electric sports car which is used for controlling the electric sports car to move along the length direction of the gantry crane beam.
The beneficial technical effects of the utility model are as follows:
The two lifting motors are arranged to drive the cylinder shafts in the two cylinders to rotate positively and negatively, so that the two ends of the steel wire rope are respectively subjected to rewinding or paying-off operation, and the lifting hook hung on the steel wire rope is driven to lift. And two play to rise the motor and connect independent electrical system respectively, utilize different power control to wire rope between two reels is same, and when one of them plays to rise the motor and damage, can drive another one and play to rise the motor, utilize one to play to rise the motor, also can accomplish the operation of rollback or unwrapping wire, thereby drive the lift of lifting hook, reach the effect of double insurance, reach emergency operation's demand.
Drawings
FIG. 1 is a side view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic view of the structure of the limiting structure of the present utility model;
fig. 4 is an exploded view of the limiting structure of the present utility model.
In the figure, 1, a support; 2. a reel; 3. a lifting motor; 4. an electric sports car; 5. a wire rope; 6. a lifting hook; 7. a protective shell; 71. an upper housing; 711. an upper notch; 72. a lower housing; 721. a lower notch; 722. a support arm; 73. a rope threading opening; 10. a pulley; 101. and a winding slot.
Detailed Description
In order that the manner in which the above recited features of the present utility model are attained and can be understood in detail, a more particular description of the utility model, briefly summarized below, may be had by reference to the appended drawings and examples, which are illustrated in their embodiments, but are not intended to limit the scope of the utility model.
The utility model provides a double insurance electric hoist, as shown in fig. 1 and 2, including support piece 1, the both sides of support piece 1 are equipped with the motor group respectively, are equipped with wire rope 5 between two motor groups, hang on wire rope 5 and be equipped with lifting hook 6, and electric sports car 4 is passed through at the top of support piece 1, and support piece 1 passes through electric sports car 4 swing joint on the portal crane crossbeam, utilizes electric sports car 4 control its length direction who follows the portal crane crossbeam on the portal crane crossbeam to slide.
As shown in fig. 1 and 2, the motor group includes a winding drum 2 and a lifting motor 3, the lifting motor 3 is a servo motor, and has a self-locking effect when being capable of forward and backward rotating, the shell of the winding drum 2 is fixedly connected to the side wall of the supporting member 1 through bolts, the lifting motor 3 is fixedly connected to the end part of the winding drum 2 through bolts, the output shaft of the lifting motor 3 is fixedly connected with the winding drum shaft in the winding drum 2 through a coupling, the end part of the steel wire rope 5 is wound on the winding drum shaft in the winding drum 2 and is fixedly connected to the winding drum shaft (the fixing of the steel wire rope 5 is in the prior art and is not shown in the drawing), the lifting motor 3 drives the winding drum shaft in the winding drum 2 to rotate, the winding drum shaft rotates to enable the steel wire rope 5 to be rewound, and the lifting motors 3 positioned at two sides of the supporting member 1 are respectively connected with independent electric control systems, and two different lifting motors 3 are controlled to operate through different electric control, so that the two lifting motors 3 can work independently, and the two ends of the steel wire rope 5 are driven to be rewound respectively.
As shown in fig. 1-4, a limiting structure for limiting the hook 6 from being separated from the steel wire rope 5 is arranged at the top of the hook 6, the limiting structure comprises a protecting shell 7 and a pulley 10 hung on the steel wire rope 5, the protecting shell 7 comprises an upper shell 71 and a lower shell 72 which are detachably connected in the vertical direction, the pulley 10 is rotationally connected in the upper shell 71 in a shaft hole matching mode, a through groove for a protruding portion of a rotation shaft of the pulley 10 to pass through is formed in the lower shell 72, opposite sides of the upper shell 71 and the lower shell 72 are opened, the upper shell 71 is embedded into the lower shell 72, the top of the upper shell 71 and the bottom of the lower shell 72 are arc-shaped, upper notches 711 which are symmetrically arranged are formed in the peripheral wall of the upper shell 71 are formed in the peripheral wall of the lower shell 72, the widths of the upper notches 711 and the lower notches 721 are larger than the diameter of the steel wire rope 5, and after the upper shell 71 is embedded into the lower shell 72, the upper notches 711 and the lower notches 721 are mutually communicated to form a rope penetrating opening 73. After the upper case 71 is inserted into the lower case 72, the upper case 71 and the lower case 72 are fixedly connected by bolts, thereby achieving a detachable connection structure. The bottom of the lower casing 72 is fixedly connected with a supporting arm 722 through a bolt, the supporting arm 722 extends towards a direction away from the upper casing 71, and the top of the lifting hook 6 is rotatably connected to the supporting arm 722 through a shaft hole matching mode, so that the lifting hook 6 is rotatably connected to the lower side of the lower casing 72 along the horizontal direction. The wire winding groove 101 is formed in the peripheral wall of the pulley 10, when the wire rope 5 passes through the peripheral wall of the pulley 10, the wire winding groove 101 is embedded, two ends of the wire rope pass through the wire threading opening 73, so that the pulley 10 becomes the movable pulley 10, the depth of the wire winding groove 101 is also larger than the radius of the wire rope 5, the space for embedding the wire rope 5 is ensured, the wire rope 5 is prevented from being separated from the pulley 10 when the wire rope 5 moves or the pulley 10 rotates, the movement of the lifting hook 6 is influenced, the inner wall of the wire winding groove 101 is in an arc-shaped arrangement, the wire rope 5 is guaranteed to be in a middle position, the movement of the pulley is more stable, and the wire rope 5 can be prevented from being separated from the wire winding groove 101. The width of the wire winding groove 101 is smaller than the diameter of the wire rope 5, so that the contact area between the wire rope 5 and the wire winding groove 101 is reduced, the friction of the inner wall of the wire winding groove 101 on the surface of the wire rope 5 is reduced, and the abrasion of the wire rope 5 is avoided.
Working principle: the electric sports car 4 is fixed at the top of the supporting piece 1 and is arranged on a gantry crane beam, two groups of motors are respectively arranged at two sides of the supporting piece 1, two ends of the steel wire rope 5 are fixedly connected to a drum shaft in the drum 2 through pressing plates, the steel wire rope 5 stretches into the lower shell 72 and penetrates through lower notches 721 positioned at two sides of the lower shell 72, the upper shell 71 is embedded into the lower shell 72, the upper notches 711 are aligned and communicated with the lower notches 721, after the embedding is completed, the upper shell 71 and the lower shell 72 are fixedly connected through bolts to form a complete protective shell 7, the upper notches 711 and the lower notches 721 are mutually communicated to form rope penetrating openings 73, two ends of the steel wire rope 5 penetrate through the rope penetrating openings 73, the protective shell 7 and the pulley 10 are arranged, separation of the steel wire rope 5 can be avoided, and accordingly the hanging hook 6 is prevented from being separated from the steel wire rope 5, and hanging of the hanging hook 6 is completed. The lifting motor 3 is started to drive a spool shaft in the spool 2 to rotate, the spool shaft rotates to enable the steel wire rope 5 to be rewound, and accordingly the lifting hook 6 hung on the steel wire rope 5 is driven to ascend, as the gravity center of the extending part of the steel wire rope 5 is always located on the center plane between the two spools 2, the lifting hook 6 vertically moves upwards along the center plane between the two spools 2, the output shaft of the lifting motor 3 reversely rotates, the spool shaft in the spool 2 reversely rotates along with the lifting hook, paying-off operation is carried out, and the lifting hook 6 vertically moves downwards along the center plane between the two spools 2. And two play to rise motor 3 and connect independent electrical system respectively, utilize different power control to wire rope 5 between two reels 2 is same, and when one of them plays to rise motor 3 when damaging, can drive another one and play to rise motor 3, utilize one to play to rise motor 3, also can accomplish the operation of rollback or unwrapping wire, thereby drive lifting hook 6's lift, reach the effect of double insurance, reach emergency operation's demand.
Because reel 2 is provided with two and is located support piece 1's both sides, damage when lifting hook 6 or skidding damage, when needs maintenance or change, only need demolish the bolt, can dismantle upper casing 71 from lower lid, just can accomplish the change of skidding or couple this moment, need not the staff to climb to the eminence and remove support piece 1 both sides, dismantle wire rope 5, carry out the change of skidding or couple again, only need just can maintain and change the operation subaerial for the operation is more convenient, has improved work efficiency.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims (8)
1. A double insurance electric hoist, characterized in that: including swing joint support piece (1) on the portal crane crossbeam, the both sides of support piece (1) are fixedly connected with motor group respectively, two be equipped with wire rope (5) between the motor group, the both ends of wire rope (5) are fixed connection respectively in the motor group, two motor group all can the independent operation, two respectively drive the both ends rollback of wire rope (5) on wire rope (5), hang on wire rope (5) and be equipped with lifting hook (6), be equipped with on lifting hook (6) and be used for restricting its limit structure who breaks away from wire rope (5).
2. The double insurance electric hoist according to claim 1, characterized in that: the motor group comprises a winding drum (2) fixedly connected to the side wall of the supporting piece (1) and a lifting motor (3) for controlling the winding drum (2) to rotate, and the end part of the steel wire rope (5) is fixedly connected to the winding drum (2) through a pressing plate.
3. The double insurance electric hoist according to claim 2, characterized in that: lifting motors (3) positioned on two sides of the supporting piece (1) are respectively connected with independent electric control systems.
4. The double insurance electric hoist according to claim 1, characterized in that: the limiting structure comprises a protecting shell (7) and a pulley (10) hung on the steel wire rope (5), wherein the pulley (10) is rotationally connected in the protecting shell (7), and a rope threading opening (73) for the steel wire rope (5) to pass through is formed in the protecting shell (7).
5. The double insurance electric hoist according to claim 4, characterized in that: the protective shell (7) comprises an upper shell (71) and a lower shell (72) which are detachably connected in the vertical direction, the lifting hook (6) is rotationally connected to the bottom of the lower shell (72) in the horizontal direction, the pulley (10) is rotationally connected to the upper shell (71), one side, opposite to the lower shell (72), of the upper shell (71) is open, and the upper shell (71) is embedded into the lower shell (72).
6. The double insurance electric hoist according to claim 5, characterized in that: an upper notch (711) and a lower notch (721) which are symmetrically arranged are respectively formed in the peripheral walls of the upper shell (71) and the lower shell (72), and the upper notch (711) and the lower notch (721) are mutually communicated to form a rope threading opening (73).
7. The double insurance electric hoist according to claim 6, characterized in that: the upper shell (71) and the lower shell (72) are fixedly connected through bolts.
8. The double insurance electric hoist according to claim 1, characterized in that: the top of the supporting piece (1) is fixedly connected with an electric sports car (4) for controlling the electric sports car to move along the length direction of the gantry crane beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322803484.0U CN220907013U (en) | 2023-10-19 | 2023-10-19 | Double-safety electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322803484.0U CN220907013U (en) | 2023-10-19 | 2023-10-19 | Double-safety electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220907013U true CN220907013U (en) | 2024-05-07 |
Family
ID=90919111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322803484.0U Active CN220907013U (en) | 2023-10-19 | 2023-10-19 | Double-safety electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220907013U (en) |
-
2023
- 2023-10-19 CN CN202322803484.0U patent/CN220907013U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |