CN219409061U - Anti-rewinding protection device for steel wire rope of crane drum - Google Patents

Abstract

The utility model discloses a steel wire rope anti-rewinding protection device for a crane drum. Relates to the technical field of cranes. Including the bottom plate, the top of bottom plate is fixed with limit switch and fixed axle, the connecting block is installed in the outer wall rotation of fixed axle, the left side of connecting block is fixed with the connecting rod, the left end of connecting rod is fixed with the contact block, the right side of connecting block is provided with control mechanism, control mechanism includes: the sleeve is fixed on the right side of the connecting block; and the outer wall of the loop bar is slidably arranged on the inner wall of the sleeve. When the steel wire rope deviation is caused to reach the installation position of the device during illegal operation or error of an operator, the sleeve or the loop bar is deviated by the force of the steel wire rope, and the crane winding drum can be controlled to stop rotating through the cooperation of the connecting block, the connecting rod, the contact block and the limit switch, so that the steel wire rope is prevented from being reversely wound or taken off from the groove.

Description

Anti-rewinding protection device for steel wire rope of crane drum

Technical Field

The utility model relates to the technical field of cranes, in particular to a steel wire rope anti-rewinding protection device for a crane winding drum.

Background

Along with the rapid development of construction, the use amount of the crane is increased, and the crane refers to a multi-action hoisting machine for vertically hoisting and horizontally carrying heavy objects in a certain range. Also known as crown block, aerial crane and crane.

In the prior art, the wire rope of the existing crane winding drum is protected, only the spiral limit and the heavy hammer limit are adopted, and the wire rope can not be protected due to the fact that the wire rope is rewound or is taken off from a groove in a diagonal and askew hanging state; in view of the above, we propose a hoist drum wire rope anti-backwinding protection device.

Disclosure of Invention

The utility model mainly aims to provide a steel wire rope anti-rewinding protection device for a crane drum, which solves the problems in the background technology.

In order to achieve the above purpose, the utility model provides a hoist drum wire rope anti-rewinding protection device, which comprises a bottom plate, wherein a limit switch and a fixed shaft are fixed at the top of the bottom plate, a connecting block is rotatably arranged on the outer wall of the fixed shaft, a connecting rod is fixed on the left side of the connecting block, a contact block is fixed at the left end of the connecting rod, a control mechanism is arranged on the right side of the connecting block, and the control mechanism comprises:

the sleeve is fixed on the right side of the connecting block;

the outer wall of the loop bar is slidably arranged on the inner wall of the sleeve;

the stop blocks are fixed at two ends of the loop bar;

the adjusting mechanism is arranged on the sleeve.

Optionally, a return spring is fixed on the left side of the sleeve, a supporting block is fixed on the left side of the return spring, and the supporting block is fixed on the top of the bottom plate.

Optionally, the adjustment mechanism includes the dwang, the dwang runs through the sleeve, the right-hand member of dwang is fixed with the knob, the left end of dwang is fixed with first bevel gear.

Optionally, first conical gear and second conical gear intermesh, the inner wall of second conical gear is fixed with two-way threaded rod, the outer wall threaded connection of two-way threaded rod is in the thread groove, the thread groove is seted up on the loop bar.

Optionally, the bidirectional threaded rod runs through the backup pad, and the bidirectional threaded rod rotates with the department of running through of backup pad to be connected, the backup pad is fixed at the inner wall of sleeve.

Optionally, a stop lever is fixed on the top of the bottom plate.

Compared with the prior art, the utility model has the following beneficial effects:

(1) When the steel wire rope deviation is caused to reach the installation position of the device during illegal operation or error of an operator, the sleeve or the loop bar is deviated by the force of the steel wire rope, and the crane winding drum can be controlled to stop rotating through the cooperation of the connecting block, the connecting rod, the contact block and the limit switch, so that the steel wire rope is prevented from being reversely wound or taken off from the groove.

(2) When the rotating knob is rotated, the sleeve rod can move on the bidirectional threaded rod through the cooperation of the rotating rod, the first bevel gear, the second bevel gear and the bidirectional threaded rod, so that the distance between two groups of stop blocks can be adjusted, and the steel wire ropes on the main hook winding drum and the auxiliary hook winding drum with different distances can be protected.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall apparatus of the present utility model;

FIG. 2 is a schematic view of the overall top view of the present utility model;

fig. 3 is an enlarged schematic view of the a structure of fig. 2 in accordance with the present utility model.

Reference numerals illustrate: 1. a bottom plate; 2. a limit switch; 3. a limit rod; 4. a fixed shaft; 5. a connecting block; 6. a connecting rod; 7. a contact block; 8. a control mechanism; 81. a sleeve; 82. a return spring; 83. a support block; 84. a loop bar; 85. a stop block; 86. an adjusting mechanism; 861. a rotating lever; 862. a rotary knob; 863. a first bevel gear; 864. a second bevel gear; 865. a two-way threaded rod; 866. a support plate; 9. a thread groove.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 3, the utility model provides a steel wire rope anti-backwinding protection device for a crane drum, which comprises a bottom plate 1, wherein a limit switch 2 is fixed at the top of the bottom plate 1, the limit switch 2 is electrically connected with the crane drum, a fixed shaft 4 is fixed at the top of the bottom plate 1, a connecting block 5 is rotatably arranged on the outer wall of the fixed shaft 4, a connecting rod 6 is fixed at one side of the connecting block 5, a control mechanism 8 is fixed at the other side of the connecting block 5, and a contact block 7 is fixed at one side of the connecting rod 6 far away from the connecting block 5.

The control mechanism 8 comprises a sleeve 81, a sleeve rod 84 is slidably mounted on the inner wall of the sleeve 81, a stop block 85 is fixed at the end point of the sleeve rod 84, the position of a steel wire rope can be limited by arranging the stop block 85, a return spring 82 is fixed on the left side of the sleeve 81, one side of the return spring 82, which is far away from the sleeve 81, is fixed on a supporting block 83, the supporting block 83 is fixed on the top of a bottom plate 1, when the steel wire rope on a main hook winding drum and a secondary hook winding drum extrudes the sleeve 81, the sleeve 81 can be further made to do arc-shaped motion, the two groups of return springs 82 can be further respectively stretched and compressed, a connecting block 5 can further drive a connecting rod 6 to move, the contact block 7 can further be made to contact with a limit switch 2, signals are further transmitted to a crane winding drum through the limit switch 2, further, the crane winding drum stops rotating, the steel wire rope is prevented from rewinding or taking off a groove, when the sleeve 81 is not extruded, the sleeve 81 can return to the original position by matching of the return spring 82, the top of the bottom plate 1 is fixed with a limit rod 3, the distance of the arc-shaped motion of the sleeve 81 can be limited by arranging the limit rod 3, and an adjusting mechanism 86 is arranged in the sleeve 81.

Above-mentioned adjustment mechanism 86 includes dwang 861, dwang 861 runs through the right side of sleeve 81, and dwang 861 and sleeve 81's department rotation of running through are connected, and when rotating knob 862, the one end of dwang 861 is fixed with knob 862, the other end of dwang 861 is fixed with first conical gear 863, first conical gear 863 and second conical gear 864 intermeshing, the inner wall of second conical gear 864 is fixed with bi-directional threaded rod 865, bi-directional threaded rod 865 runs through backup pad 866, backup pad 866 is fixed at sleeve 81's inner wall, and bi-directional threaded rod 865 and backup pad 866's department rotation is connected, can play the effect of supporting bi-directional threaded rod 865 through setting up backup pad 866, and then when rotating knob 862, can make dwang 861 rotatory, through first conical gear 863 rotation drive second conical gear 864, make bi-directional threaded rod 865 rotatory, the outer wall and thread groove 9 screw thread connection, the inner wall at sleeve rod 84 is seted up to thread groove 9, and then when threaded rod 865 rotates, can make sleeve rod 865 carry out on the removal on sleeve rod 865 or can stretch out the sleeve wire rope on the sleeve 84, can stretch out the distance between two pairs of wire rope, and can reach the distance between two pairs of the sleeve wire rope and the distance between the two pairs of the sleeve wire rope can be adjusted, and can be adjusted.

In the utility model, when the protective device is used, the protective device is arranged between the main hook winding drum and the auxiliary hook winding drum, mainly when the steel wire rope is caused to deviate to the installation position of the device when an operator breaks rules or fails, the sleeve 81 and the sleeve rod 84 deviate by the force of the steel wire rope, so that the sleeve 81 moves in an arc shape, the connecting block 5 drives the connecting rod 6 to move, the contact block 7 contacts with the limit switch 2, the limit switch 2 transmits a signal to the crane winding drum, the crane winding drum stops rotating, the steel wire rope is prevented from being rewound or taken off, when the rotary knob 862 is rotated, the rotary rod 861 can be rotated, the second conical gear 864 is driven to rotate by the rotation of the first conical gear 863, the sleeve rod 84 is enabled to move on the bidirectional threaded rod 865, the sleeve rod 84 can be extended into or extended out of the sleeve 81, the distance between the two groups of stop blocks 85 can be adjusted, and the steel wire ropes on the main hook winding drum and the auxiliary hook winding drum with different intervals can be protected.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (6)

1. The utility model provides a hoist reel wire rope prevents rewinding protector, includes bottom plate (1), its characterized in that: the top of bottom plate (1) is fixed with limit switch (2) and fixed axle (4), connecting block (5) are installed in the outer wall rotation of fixed axle (4), the left side of connecting block (5) is fixed with connecting rod (6), the left end of connecting rod (6) is fixed with contact block (7), the right side of connecting block (5) is provided with control mechanism (8), control mechanism (8) include:

a sleeve (81), wherein the sleeve (81) is fixed on the right side of the connecting block (5);

a loop bar (84), wherein the outer wall of the loop bar (84) is slidably arranged on the inner wall of the sleeve (81);

the stop blocks (85) are fixed at two ends of the loop bar (84);

and an adjusting mechanism (86), wherein the adjusting mechanism (86) is arranged on the sleeve (81).

2. A hoist drum wire rope anti-recoil protection device as in claim 1, wherein: the left side of sleeve (81) is fixed with reset spring (82), the left side of reset spring (82) is fixed with supporting shoe (83), supporting shoe (83) are fixed at the top of bottom plate (1).

3. A hoist drum wire rope anti-recoil protection device as in claim 1, wherein: the adjusting mechanism (86) comprises a rotating rod (861), the rotating rod (861) penetrates through the sleeve (81), a rotating button (862) is fixed at the right end of the rotating rod (861), and a first bevel gear (863) is fixed at the left end of the rotating rod (861).

4. A hoist drum wire rope anti-recoil protection device as in claim 3, wherein: the first conical gear (863) is meshed with the second conical gear (864), a bidirectional threaded rod (865) is fixed on the inner wall of the second conical gear (864), the outer wall of the bidirectional threaded rod (865) is connected in a threaded groove (9) in a threaded mode, and the threaded groove (9) is formed in the loop bar (84).

5. The hoist drum wire rope anti-backwinding protection device of claim 4, characterized in that: the bidirectional threaded rod (865) penetrates through the supporting plate (866), the penetrating position of the bidirectional threaded rod (865) and the supporting plate (866) is rotationally connected, and the supporting plate (866) is fixed on the inner wall of the sleeve (81).

6. A hoist drum wire rope anti-recoil protection device as in claim 1, wherein: a limit rod (3) is fixed at the top of the bottom plate (1).