CN218988610U

CN218988610U - Crane steel wire rope anti-drop self-locking device

Info

Publication number: CN218988610U
Application number: CN202222906515.0U
Authority: CN
Inventors: 尚扬; 乔保证; 李振玲; 乔增光; 高秀娟
Original assignee: Henan Huaxing Crane Co ltd
Current assignee: Henan Huaxing Crane Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-05-09
Anticipated expiration: 2032-11-02

Abstract

The utility model discloses an anti-dropping self-locking device for a steel wire rope of a crane, which relates to the technical field of self-locking devices, and particularly comprises a locking device, wherein a supporting seat is fixedly connected to the outside of the locking device, and a rotating device is movably connected to one side of the supporting seat. The locking device comprises a ratchet wheel, an eccentric wheel is arranged in the ratchet wheel, and a center piece is arranged on one side of the eccentric wheel. In the in-process of motion, when the center pole normal rotation, the eccentric wheel can rotate along with the rotation of center piece, does not take place the skew, and when the center pole took place fast rotation, the eccentric wheel takes place the centrifugal action, and the latch of eccentric wheel outer wall will block between the tooth of ratchet, because the irregular shape of eccentric wheel, the center piece can chucking eccentric wheel, because the ratchet is fixed, and the center piece is connected with the cuboid fixture block, and the center piece stops rotating for the center pole is blocked to the center piece, makes the center pole stop rotating, thereby has played the effect of auto-lock.

Description

Crane steel wire rope anti-drop self-locking device

Technical Field

The utility model relates to the technical field of self-locking devices, in particular to an anti-dropping self-locking device for a steel wire rope of a crane.

Background

Unlike other steel wire ropes, the steel wire rope for the crane has relatively more pulleys, relatively larger reverse bending bearing probability, relatively faster running speed, relatively larger bearing impact load, and abrasion and fatigue are main failure modes. The hoist typically lifts an item through a wire rope by rotating the drum with a motor and winding the wire rope around the surface of the drum. The crane wire rope self-locking device is a device for preventing goods from falling rapidly and preventing the goods or personnel from being damaged when the crane transports the goods at high altitude.

The wire rope of current hoist is all around on a cylinder, by motor drive, rotates the cylinder, receive and releases wire rope when the cylinder is rotatory, but the cylinder sometimes can be because live time is long, take place to damage for the phenomenon of smooth silk can take place for the cylinder, and the heavy object can be very fast the whereabouts, does not have safe safety device, and the structure of the auto-lock lifting hook of some auto-lock devices is more complicated, needs a plurality of inductors to cooperate mechanical device to constitute self-locking mechanism, and the structure is more complicated, and the cost is higher, so the auto-lock is carried out when the wire rope is dropped fast to the auto-lock device that needs a simple structure now.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an anti-dropping self-locking device for a steel wire rope of a crane, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the locking device is fixedly connected with a supporting seat outside, and one side of the supporting seat is movably connected with a rotating device.

The locking device comprises a ratchet wheel, an eccentric wheel is arranged in the ratchet wheel, and a center piece is arranged on one side of the eccentric wheel.

The rotating device comprises a center rod, gears are connected with the two ends of the center rod in a key manner, and wheel rods are fixedly arranged outside the gears.

Optionally, the middle part of central part is provided with the fixture block, one side fixedly connected with connecting block of ratchet, the outside threaded connection of connecting block has the lid, the middle part fixedly connected with kicking block of lid.

Optionally, the draw-in groove with fixture block looks adaptation is seted up at the both ends of center pole, the inside of wheel pole is provided with the tooth with gear looks adaptation, wheel pole and gear meshing.

Optionally, the shape of eccentric wheel is irregular cyclic annular, the outer wall fixedly connected with of eccentric wheel and the latch of ratchet looks adaptation.

Optionally, the center piece contacts with the eccentric wheel, and the shape of center piece is "protruding" font, and the card of a part of center piece is in the inner ring of eccentric wheel.

Optionally, the shape of the center piece is a strip shape, and the shape of the clamping block is a cuboid.

Optionally, the center rod is in bearing connection with the ratchet wheel.

Optionally, the number of the locking devices is two, the locking devices are respectively arranged at two ends of the central rod, the number of the supporting seats is two, and the locking devices are respectively arranged at two sides of the wheel rod.

(III) beneficial effects

The utility model provides an anti-dropping self-locking device for a crane steel wire rope, which has the following beneficial effects:

1. this hoist wire rope anti-drop self-locking device, the kicking block of lid middle part connection withstands the center piece, the center piece blocks the eccentric wheel, the frictional force that produces between center piece and the eccentric wheel makes the eccentric wheel can stabilize the middle part at the ratchet under normal condition, through the setting of fixture block, can make the center piece rotate along with the rotation of center pole, in the in-process of motion, when center pole normal rotation, the rotation rate is slow, the centrifugal force of eccentric wheel is less, and there is certain frictional force between center piece and the eccentric wheel, the eccentric wheel can rotate along with the rotation of center piece, do not take place the skew, when center pole takes place fast rotation, the eccentric wheel takes place the centrifugal action, the centrifugal force that produces is great, because the shape of eccentric wheel is irregular, the inside and the convex part of center piece are not fully contacted, so the position of eccentric wheel can take place the skew under the circumstances of great centrifugal force, the latch of eccentric wheel outer wall will block at the ratchet, because the irregular shape of eccentric wheel takes place after the deflection, the eccentric wheel's the eccentric wheel can take place the top tightly, the center piece is fixed cuboid, the center piece has stopped the center piece to take place the effect, thereby the center piece has stopped the center piece, thereby the cost is low to the center piece has stopped, the center piece rotates, and has stopped the center piece is easy, and has stopped, and has been easy to rotate.

2. This hoist wire rope anti drop self-locking device through the setting of wheel pole for wire rope can twine at its surface, through the setting of gear, makes the center pole can drive the wheel pole and rotate, and when the eccentric wheel was locked, the center pole can make the gear stop rotating, then the gear then makes the wheel pole stop, sets up like this and can make less power produce great power through the gear and make the wheel pole stop motion.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side view in cross section of the present utility model;

FIG. 3 is an enlarged schematic view of the center piece of the present utility model;

FIG. 4 is a schematic view of the eccentric wheel of the present utility model;

FIG. 5 is a schematic view of a wheel bar cross-section of the present utility model;

fig. 6 is a schematic side view of the present utility model.

In the figure: 1. a locking device; 101. a connecting block; 102. a cover; 103. a top block; 104. a center piece; 105. a clamping block; 106. an eccentric wheel; 107. a ratchet wheel; 108. latch teeth; 2. a support base; 3. a rotating device; 301. a central rod; 302. a gear; 303. and a wheel rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1 to 4, the present utility model provides the following technical solutions: the utility model provides a hoist wire rope anti-drop self-locking device, includes locking device 1, and locking device 1's outside fixedly connected with supporting seat 2, one side swing joint of supporting seat 2 has rotary device 3.

The locking device 1 comprises a ratchet wheel 107, wherein an eccentric wheel 106 is arranged in the ratchet wheel 107, and a center piece 104 is arranged on one side of the eccentric wheel 106. The middle part of center piece 104 is provided with fixture block 105, and the welding of one side of ratchet 107 has connecting block 101, and the outside threaded connection of connecting block 101 has lid 102, and the middle part of lid 102 fixedly connected with kicking block 103. The eccentric wheel 106 is irregularly annular, and the outer wall of the eccentric wheel 106 is fixedly connected with a latch 108 matched with the ratchet wheel 107. The center piece 104 contacts with the eccentric wheel 106, the shape of the center piece 104 is in a shape of a 'convex' and a strip, the protruding part of the center piece 104 is clamped in the eccentric wheel 106, the clamping block 105 is in a shape of a cuboid, and the center rod 301 is connected with the ratchet wheel 107 through a bearing.

When the eccentric wheel type self-locking device is used, the top block 103 connected in the middle of the cover 102 props against the center piece 104, the center piece 104 blocks the eccentric wheel 106, friction force generated between the center piece 104 and the eccentric wheel 106 enables the eccentric wheel 106 to be stable in the middle of the ratchet wheel 107 under normal conditions, the center piece 104 can rotate along with the rotation of the center rod 301 through the arrangement of the clamping blocks 105, when the center rod 301 rotates normally in the moving process, the rotation speed is low, the centrifugal force of the eccentric wheel 106 is small, certain friction force exists between the center piece 104 and the eccentric wheel 106, the eccentric wheel 106 can rotate along with the rotation of the center piece 104, no offset occurs, when the center rod 301 rotates rapidly, the eccentric wheel 106 generates centrifugal action, the generated centrifugal force is large, the position of the eccentric wheel 106 is offset under the condition of large centrifugal force due to the fact that the protruding part of the eccentric wheel 106 is not completely contacted with the center piece 104, the clamping teeth 108 on the outer wall of the eccentric wheel 106 are clamped between the ratchet wheel 107, the eccentric wheel 106 is in the irregular shape, the eccentric wheel 106 is stopped due to the fact that the eccentric wheel 106 protrudes from the center piece 104, the center piece 104 is tightly rotates, and the center piece 104 is stopped, and the center piece 104 is simply due to the fact that the center piece 104 is rotated, and the center piece 104 is stopped, and the center piece is rotated, and the center piece is easily is connected.

Example 2

Referring to fig. 5 to 6, the present utility model provides the following technical solutions: the utility model provides a hoist wire rope anti-drop self-locking device, includes locking device 1, and locking device 1's outside fixedly connected with supporting seat 2, one side swing joint of supporting seat 2 has rotary device 3. The rotating device 3 comprises a central rod 301, gears 302 are connected to two ends of the central rod 301 in a key way, and a wheel rod 303 is fixedly arranged outside the gears 302. Clamping grooves matched with the clamping blocks 105 are formed in the two ends of the center rod 301, teeth matched with the gears 302 are arranged in the wheel rod 303, and the wheel rod 303 is meshed with the gears 302 in the direction. The number of the locking devices 1 is two, and the locking devices are respectively arranged at two ends of the central rod 301, and the number of the supporting seats 2 is two, and the locking devices are respectively arranged at two sides of the wheel rod 303.

In use, the wire rope can be wound on the surface of the wheel rod 303 through the arrangement of the gear 302, the wheel rod 303 can be driven to rotate by the central rod 301, when the eccentric wheel 106 is locked, the rotation of the gear 302 can be stopped by the central rod 301, then the wheel rod 303 is stopped by the gear 302, and thus, the wheel rod 303 can be stopped by a small force through a large force generated by the gear 302.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a hoist wire rope anti falling self-locking device, includes locking means (1), its characterized in that: the outside of the locking device (1) is fixedly connected with a supporting seat (2), and one side of the supporting seat (2) is movably connected with a rotating device (3);

the locking device (1) comprises a ratchet wheel (107), wherein an eccentric wheel (106) is arranged in the ratchet wheel (107), and a center piece (104) is arranged on one side of the eccentric wheel (106);

the rotating device (3) comprises a central rod (301), gears (302) are connected to two ends of the central rod (301) in a key mode, and wheel rods (303) are fixedly arranged outside the gears (302).

2. The anti-drop self-locking device for a crane steel wire rope according to claim 1, wherein the anti-drop self-locking device is characterized in that: the middle part of center piece (104) is provided with fixture block (105), one side fixedly connected with connecting block (101) of ratchet (107), the outside threaded connection of connecting block (101) has lid (102), the middle part fixedly connected with kicking block (103) of lid (102).

3. The anti-drop self-locking device for a crane steel wire rope according to claim 2, wherein: clamping grooves matched with the clamping blocks (105) are formed in the two ends of the center rod (301), teeth matched with the gears (302) are arranged in the wheel rod (303), and the wheel rod (303) is meshed with the gears (302) in the direction.

4. The anti-drop self-locking device for a crane steel wire rope according to claim 1, wherein the anti-drop self-locking device is characterized in that: the outer wall of the eccentric wheel (106) is fixedly connected with a latch (108) which is matched with the ratchet wheel (107).

5. The anti-drop self-locking device for a crane steel wire rope according to claim 1, wherein the anti-drop self-locking device is characterized in that: the center piece (104) is in contact with the eccentric wheel (106), the shape of the center piece (104) is in a convex shape, and the protruding part of the center piece (104) is clamped on the inner ring of the eccentric wheel (106).

6. A crane wire rope anti-drop self-locking device according to claim 3, characterized in that: the shape of the center piece (104) is long, and the shape of the clamping block (105) is cuboid.

7. The anti-drop self-locking device for a crane steel wire rope according to claim 1, wherein the anti-drop self-locking device is characterized in that: the center rod (301) is in bearing connection with the ratchet wheel (107).

8. The anti-drop self-locking device for a crane steel wire rope according to claim 1, wherein the anti-drop self-locking device is characterized in that: the number of the locking devices (1) is two, the locking devices are respectively arranged at two ends of the central rod (301), the number of the supporting seats (2) is two, and the locking devices are respectively arranged at two sides of the wheel rod (303).