CN211545782U

CN211545782U - Auxiliary hoisting device

Info

Publication number: CN211545782U
Application number: CN201922031607.7U
Authority: CN
Inventors: 洪丁丁; 侯世金; 隋国平; 徐峰; 高标; 连兴文; 王云龙; 李琦; 陈诺; 李荣涛; 黄勇
Original assignee: Kunming Bureau of Extra High Voltage Power Transmission Co
Current assignee: Kunming Bureau of Extra High Voltage Power Transmission Co
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-22
Anticipated expiration: 2029-11-21

Abstract

The utility model provides an auxiliary hoisting device, which relates to the technical field of hoisting equipment and comprises a wire coil and a transmission mechanism; the transmission mechanism comprises a driving gear and a driven gear; the driving gear is rotatably mounted on the shell through a rotating shaft, the rotating shaft extends outwards to form a handle, a locking mechanism is arranged on the rotating shaft and comprises a locking shell, locking pins, a locking switch and a reset mechanism, the locking shell and the rotating shaft are coaxially arranged and rotatably connected to the shell, the locking pins are distributed along the circumferential direction of the locking shell and are telescopically arranged in the locking shell in a penetrating mode, a plurality of bolt holes matched with the locking pins are formed in the shell, the locking switch is mounted on the handle and connected with the locking pins through pull ropes, and the reset mechanism is mounted on the locking shell; the driven gear is rotatably connected to the shell and is meshed with the driving gear; the wire coil is wound with a hoisting wire and connected with the driven gear; the utility model discloses can hover in the optional position when hoist and mount, realized laborsaving, efficient function well.

Description

Auxiliary hoisting device

Technical Field

The utility model relates to a lifting device technical field particularly, relates to an auxiliary hoisting device.

Background

The converter transformer is a key device which is crucial in the ultra-high voltage direct current transmission project, and is a core device of interfaces at two ends of current conversion and inversion in an alternating current and direct current transmission system. The investment and safe operation of the system are key and important guarantees for obtaining power generation benefits in engineering. The converter transformer cooling fan is a cooling fan carried by converter transformer equipment, and heat can be continuously generated in the operation process of the equipment because the converter transformer works 24 hours a day. If the generated heat can not be removed in time, the heat can be continuously accumulated, and finally equipment failure or safety accidents occur. One converter transformer is provided with a plurality of cooling fans, and although one converter transformer cannot be immediately stopped due to failure, the equipment of the converter transformer still needs to be replaced and maintained as soon as possible. Because the converter transformer position is comparatively special, and great equipment (lift platform car etc.) is difficult to be close to the converter transformer and carries out the operation, and the double ladder is not enough to support the change operation of cooling fan again, consequently need to set up a scaffold frame in converter transformer fan side, then demolish the trouble fan and place ground at the scaffold frame top with the help of a helping hand hoist device to install the new fan hoist to the mounted position on the ground.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary hoisting device, it can realize hoisting device when hoist and mount through locking the mechanism, hovers at the optional position, and the installation has avoided extra manpower to support with dismantling the in-process, has realized laborsaving, efficient function well.

The embodiment of the utility model discloses a realize through following technical scheme:

an auxiliary hoisting device comprises a wire coil and a transmission mechanism;

the transmission mechanism comprises a driving gear and a driven gear; the driving gear is rotatably installed on the shell through a rotating shaft, the rotating shaft extends outwards to form a handle, a locking mechanism is arranged on the rotating shaft, the locking mechanism comprises a locking shell, locking pins, a locking switch and a reset mechanism, the locking shell and the rotating shaft are coaxially arranged and rotatably connected to the shell, the locking pins are distributed along the circumferential direction of the locking shell and are telescopically arranged in the locking shell in a penetrating mode, a plurality of bolt holes matched with the locking pins are formed in the shell and used for achieving rotation stopping of the driving gear, the locking switch is installed on the handle and connected with the locking pins through pull ropes to achieve inward contraction of the locking pins, and the reset mechanism is installed on the locking shell and used for achieving outward extending and resetting of the locking pins; the driven gear is rotatably connected to the shell and is meshed with the driving gear;

the wire coil is wound with a hoisting wire and connected to the driven gear to synchronously rotate along with the driven gear.

Furthermore, the reset mechanism is a plurality of abutting springs, each abutting spring is sleeved on one of the dead lock pins, one end of each abutting spring abuts against the dead lock shell, and the other end of each abutting spring abuts against the dead lock pin to realize outward extending reset of the dead lock pin.

Furthermore, the reset mechanism is an extension spring, one end of the extension spring is connected to the dead lock shell, the other end of the extension spring is connected to the pull rope through a connecting block, the inner end of the dead lock pin is connected to the connecting block through a connecting rod, and two ends of the connecting rod are respectively hinged to the inner end of the dead lock pin and the connecting block.

Further, the pull rope is arranged in the handle in a penetrating mode.

Furthermore, the end, far away from the pull rope, of the dead lock switch is provided with a compression spring, one end of the compression spring is abutted to the handle, and the other end of the compression spring is abutted to the dead lock switch.

Furthermore, the transmission mechanism further comprises a double-station ratchet and a ratchet return spring, the double-station ratchet comprises a swinging block, a first ratchet and a second ratchet, the first ratchet and the second ratchet are respectively arranged on two sides of the swinging block close to the end of the driving gear, the swinging block is connected to the shell in a swinging mode so that an operator can select the first ratchet or the second ratchet to be clamped with the driving gear, a sliding groove is formed in the swinging block, a sliding block is arranged in the sliding groove, one end of the ratchet return spring is connected to the shell in a pulling mode, and one end of the ratchet return spring is connected to the sliding block in a pulling mode so that the first ratchet or the second ratchet can be always clamped to the driving gear when the driving gear.

Furthermore, the sliding groove is a section of circular arc taking the swinging center of the swinging block as the center of a circle.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

use the utility model discloses the time, at the hoist or transfer the in-process, push down the dead switch of lock, the pulling through the stay cord makes the round pin of locking to shrink inwards, and people's external force rotates the handle, makes the driving gear drive driven gear and rotates, and then makes the drum rotate, realizes the hoist or transfer of heavy object, when needs hang and stop, releases the handle, and the round pin of locking outwards stretches out under canceling release mechanical's effect, after inserting the bolt hole, realizes the stall of driving gear, and then realizes hovering of heavy object.

The utility model relates to a rationally, simple structure can realize hoisting device when hoist and mount through locking the mechanism, hovers at the optional position, and the installation has avoided extra manpower to support with dismantling the in-process, has realized laborsaving, efficient function well.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a dead lock state of a transmission mechanism provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of a rotation state of the transmission mechanism provided in embodiment 1 of the present invention;

fig. 3 is a schematic view of a double-station ratchet forward rotation limiting state provided in embodiment 1 of the present invention;

fig. 4 is a schematic view of a double-station ratchet reverse rotation limiting state provided in embodiment 1 of the present invention;

fig. 5 is a schematic structural diagram of a locking mechanism provided in embodiment 1 of the present invention;

icon: 1-transmission mechanism, 11-driving gear, 111-rotating shaft, 112-handle, 113-locking mechanism, 113 a-locking shell, 113 b-locking pin, 113 c-locking switch, 113 d-resetting mechanism, 113 e-pull rope, 114-compression spring, 115-connecting block, 116-connecting rod, 12-driven gear, 13-shell, 131-bolt hole, 14-double-station ratchet, 141-swinging block, 141 a-sliding chute, 141 b-sliding block, 142-first ratchet, 143-second ratchet and 15-ratchet resetting spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 4, the present embodiment provides an auxiliary hoisting device, which includes a wire coil and a transmission mechanism 1;

the transmission mechanism 1 comprises a driving gear 11 and a driven gear 12; the driving gear 11 is rotatably mounted on the housing 13 through a rotating shaft 111, the rotating shaft 111 extends outward to form a handle 112, the rotating shaft 111 is provided with a locking mechanism 113, the locking mechanism 113 includes a locking shell 113a, a locking pin 113b, a locking switch 113c and a reset mechanism 113d, the locking shell 113a and the rotating shaft 111 are coaxially disposed and rotatably connected to the housing 13, a plurality of locking pins 113b are distributed along a circumferential direction of the locking shell 113a and telescopically penetrate through the locking shell 113a, it should be noted that the locking shell 113a is used for penetrating through the locking pin 113b, a diameter of the locking pin 113b is slightly larger than a diameter of the locking pin 113b, a plurality of pin holes 131 matched with the locking pins 113b are formed in the housing 13 for realizing the rotation prevention of the driving gear 11, the locking switch 113c is mounted on the handle 112 and connected with the locking pins 113b through a pull rope 113e for pulling the locking pins 113b to realize the inward contraction of the locking pins 113b, it should be noted that, for aesthetic reasons, the pull rope 113e is usually inserted into the handle 112, the structure of the dead lock switch 113c and the pull rope 113e is similar to that of a bicycle brake, and the reset mechanism 113d is installed on the dead lock case 113a to realize outward extending reset of the dead lock pin 113 b; in this embodiment, the reset mechanism 113d is specifically implemented as follows: the reset mechanism 113d is a plurality of pressing springs, each pressing spring is sleeved on a locking pin 113b, one end of each pressing spring abuts against the locking shell 113a, the other end of each pressing spring abuts against the locking pin 113b to realize outward extending reset of the locking pin 113b, the pulling of the pulling rope 113e drives the locking pin 113b to move inwards along the preset track to realize unlocking of the locking mechanism 113, when the stretching is released, the locking pin 113b resets under the action of the pressing spring to realize locking of the locking mechanism 113, the mode is only used for explaining the utility model, but not limiting the utility model, in other embodiments, the reset mechanism 113d is an extension spring, one end of the extension spring is connected to the locking shell 113a, the other end of the extension spring is connected to the pulling rope 113e through the connecting block 115, the inner end of the locking pin 113b is connected to the connecting block 115 through the connecting rod 116, and the two ends of the connecting rod are respectively hinged to the inner end of the locking pin 113b and the connecting block 115, it should be noted that the connecting rod 116 needs to have certain rigidity, and when the connecting rod is reset, the locking pin 113b can be pushed to extend outwards, and by adopting the above manner, the number of springs can be reduced, and the complexity of the device is also reduced, and the driven gear 12 is rotatably connected to the housing 13 and is meshed with the driving gear 11;

in order to reduce the force required by the reset mechanism 113d, in this embodiment, the end of the dead lock switch 113c away from the pull rope 113e is provided with the compression spring 114, one end of the compression spring 114 abuts against the handle 112, and the other end abuts against the dead lock switch 113 c.

The wire coil is wound with a hoisting wire and is connected with the driven gear 12 to synchronously rotate along with the driven gear 12.

When the device is used, an extremely heavy object is often required to be hoisted, and locking of the locking pin 113b is only required, which may not be enough, if a heavy object exceeds the bearing capacity of the locking pin 113b, irreparable damage or even casualties may be caused to the device, for this reason, in this embodiment, the transmission mechanism 1 further includes a double-station ratchet 14 and a ratchet return spring 15, the double-station ratchet 14 includes a swinging block 141, a first ratchet 142 and a second ratchet 143, the first ratchet 142 and the second ratchet 143 are respectively disposed on two sides of the swinging block 141 near the driving gear 11 end, the swinging block 141 is swingably connected to the housing 13 so that an operator can select the first ratchet 142 or the second ratchet 143 to be clamped with the driving gear 11, the swinging block 141 is provided with a sliding groove 141a, a sliding block 141b is disposed in the sliding groove 141a, one end of the ratchet return spring 15 is connected to the housing 13 in a pulling manner, and the other end of the ratchet return spring is connected to the sliding block 141b so that the first ratchet 142 or the second ratchet The movable teeth and the sliding groove 141a are an arc with the swing center of the swing block 141 as the center of a circle, the design is adopted, the acting position of the ratchet return spring 15 is more stable, the sliding block 141b slides along the sliding groove 141a when the double-station ratchet 14 is shifted by the rotation of the driving gear 11 and is prevented from deviating, so that the sliding block 141b enters another station to cause the clamping failure, when the swing block 141 is shifted to clamp the first ratchet 142 or the second ratchet 143 with the driving gear 11 when the driving gear 11 rotates, at the moment, the sliding block 141b passes through the rotation center of the swing block 141, and due to the tensile force of the ratchet return spring 15, when the driving gear 11 rotates, the first ratchet 142 or the second ratchet 143 is always clamped with the driving gear 11 to realize the ratchet function, so that the driving gear 11 can only rotate.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary hoisting device, its characterized in that: comprises a wire coil and a transmission mechanism (1);

the transmission mechanism (1) comprises a driving gear (11) and a driven gear (12); the driving gear (11) is rotatably installed on the shell (13) through a rotating shaft (111), the rotating shaft (111) extends outwards to form a handle (112), a locking mechanism (113) is arranged on the rotating shaft (111), the locking mechanism (113) comprises a locking shell (113a), a locking pin (113b), a locking switch (113c) and a reset mechanism (113d), the locking shell (113a) and the rotating shaft (111) are coaxially arranged and rotatably connected to the shell (13), the locking pin (113b) penetrates through the locking shell (113a) in a telescopic mode along the circumferential distribution of the locking shell (113a), a plurality of bolt holes (131) matched with the locking pin (113b) are formed in the shell (13) and used for achieving rotation prevention of the driving gear (11), the locking switch (113c) is installed on the handle (112) and connected with the locking pin (113b) through a pull rope (113e) to achieve inward locking of the locking pin (113b) through the locking pin (113b) The reset mechanism (113d) is arranged on the dead lock shell (113a) and used for realizing outward extending reset of the dead lock pin (113 b); the driven gear (12) is rotatably connected to the shell (13) and is meshed with the driving gear (11);

the wire coil is wound with a hoisting wire and connected to the driven gear (12) to synchronously rotate along with the driven gear (12).

2. The auxiliary hoisting device of claim 1, wherein: the reset mechanism (113d) is provided with a plurality of abutting springs, each abutting spring is sleeved on one of the dead lock pins (113b), one end of each abutting spring abuts against the dead lock shell (113a), and the other end of each abutting spring abuts against the dead lock pin (113b) to realize outward extending reset of the dead lock pin (113 b).

3. The auxiliary hoisting device of claim 1, wherein: the reset mechanism (113d) is an extension spring, one end of the extension spring is connected to the dead lock shell (113a), the other end of the extension spring is connected to the pull rope (113e) through a connecting block (115), the inner end of the dead lock pin (113b) is connected to the connecting block through a connecting rod (116), and two ends of the connecting rod (116) are respectively hinged to the inner end of the dead lock pin (113b) and the connecting block (115).

4. The auxiliary hoisting device of claim 1, wherein: the pull rope (113e) is inserted into the handle (112).

5. The auxiliary hoisting device of claim 1, wherein: and one end of the dead lock switch (113c), which is far away from the pull rope (113e), is provided with a compression spring (114), one end of the compression spring (114) is abutted against the handle (112), and the other end of the compression spring is abutted against the dead lock switch (113 c).

6. The auxiliary hoisting device of claim 1, wherein: the transmission mechanism (1) also comprises a double-station ratchet (14) and a ratchet return spring (15), the double-station ratchet (14) comprises a swinging block (141), a first ratchet (142) and a second ratchet (143), the first ratchet (142) and the second ratchet (143) are respectively arranged at two sides of the swinging block (141) close to the end of the driving gear (11), the swinging block (141) is swingably connected to the shell (13) so that an operator can select the first ratchet (142) or the second ratchet (143) to be clamped with the driving gear (11), the swinging block (141) is provided with a sliding chute (141a), a sliding block (141b) is arranged in the sliding groove (141a), one end of the ratchet return spring (15) is connected to the shell (13) in a pulling mode, and the other end of the ratchet return spring is connected to the sliding block (141b) in a pulling mode so that the first ratchet (142) or the second ratchet (143) can be always clamped to the driving gear when the driving gear (11) rotates.

7. Auxiliary hoisting device according to claim 6, characterized in that: the sliding groove (141a) is a section of circular arc with the swinging center of the swinging block (141) as the center of a circle.