CN213623195U

CN213623195U - Lifting machine with chain breakage protection function

Info

Publication number: CN213623195U
Application number: CN202022471821.7U
Authority: CN
Inventors: 徐宏彬; 王中革; 任万吉; 高继伟
Original assignee: Jilin Yatai Cement Co ltd
Current assignee: Jilin Yatai Cement Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-06
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a lifting machine with broken chain protect function, including the mounting panel, the mounting panel is fixed with power device, and one side outer wall of power device is provided with two symmetric distributions's chain, the one end of chain is provided with the balancing weight, and one side outer wall fixedly connected with connecting plate of balancing weight, and one side outer wall of connecting plate rotates through the bearing and is connected with the back shaft, and the one end fixedly connected with backup pad of back shaft, one side outer wall of connecting plate rotates and is connected with the connecting rod, and the outer wall fixed connection of connecting rod has the power piece, and the both ends of power piece all rotate and be connected with the rotor plate. The utility model discloses when the chain fracture appears, release the fixture block from the arc wall for the fixture block joint is in the chute, and the weight of yoke and work piece is being born to support frame and mounting panel this moment, has realized disconnected chain protect function from this, and double cassette can hoisting device's bearing capacity, hoisting device's security.

Description

Lifting machine with chain breakage protection function

Technical Field

The utility model relates to a lifting machine technical field especially relates to a lifting machine with chain rupture protect function.

Background

The elevator comprises a movable trolley, a power lifting mechanism and a bearing mechanism. When the lifting device works, a user drives the lifting machine to the front of an object to be moved, and the power lifting mechanism drives the fork arms of the bearing mechanism to move up and down through the chains so as to drive goods to move. In the use, bear great dynamics on the chain of lifting machine, long-time promotion removal or overload can accelerate the chain deformation, serious meeting lead to the chain fracture.

When an existing lifting machine with the chain breakage protection function is used for lifting a chain and is broken, the chain breakage protection mechanism is fixedly matched with a rack, the gravity of a fork arm and a workpiece can be borne by the chain breakage protection assembly, the lifting machine stops working in time, and secondary accidents are avoided. However, each chain in the prior art only has one clamping mechanism, so that the reliability is low.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a lifting machine with a chain breakage protection function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lifting machine with a chain breakage protection function comprises a mounting plate, wherein a power device is fixed on the mounting plate through a bolt, two chains which are symmetrically distributed are arranged on the outer wall of one side of the power device, a balancing weight is arranged at one end of each chain, a connecting plate is welded on the outer wall of one side of the balancing weight, a supporting shaft is rotatably connected to the outer wall of one side of the connecting plate through a bearing, a supporting plate is welded on one end of the supporting shaft, a connecting rod is rotatably connected to the outer wall of one side of the connecting plate, a power block is welded on the outer wall of the connecting rod, rotating plates are rotatably connected to two ends of the power block, short pins are rotatably connected to two ends of each rotating plate, an arc plate is rotatably connected to one end of each rotating plate through a short pin, a clamping block is welded on the outer wall of one side of each arc plate, the utility model discloses a mounting plate, including mounting panel, bearing, cylindric lock, connecting rod, connecting plate, the one side outer wall of mounting panel has two symmetric distribution's support frame through the bolt fastening, and the both sides inner wall of support frame is equallyd divide cloth and has the chute that a plurality of equidistance distribute, the one end of arc all is connected with the cylindric lock through the bearing rotation, and the one end of cylindric lock welds in one side inner wall of drum, the outer wall.

Preferably: the chute is matched with the arc-shaped groove.

Preferably: the supporting shaft and the connecting rod are positioned on two sides of the connecting plate.

Preferably: the two arc plates are distributed in central symmetry by taking the connecting rod as the center.

Preferably: the connecting rod is located the both ends of connecting plate at the balancing weight, and the lever structure is constituteed with the back shaft to the connecting plate.

Preferably: and the outer wall of one side of the supporting plate is provided with two fork arms.

Preferably: the bottom of chain all is provided with the sensor, and the one end of sensor sets up in the top outer wall of balancing weight, and the balancing weight detects the pulling force between chain and the balancing weight, and there are controller and display on one side outer wall of mounting panel through bolt fixed mounting.

The utility model has the advantages that:

1. when the lifting device works normally, the chain pulls the counterweight block upwards, the fixture block is positioned in the cylinder and is not contacted with the chute, and the power device can smoothly drive the support plate to do lifting motion through the chain; when the chain is broken, the balancing weight loses upward traction force and rotates downwards by taking the supporting shaft as a center, the connecting rod and the connecting plate rotate under the action of rope tension of the rope, the power block rotates by taking the connecting rod as the center, the arc plate is driven by the short pin and the rotating plate to rotate by taking the cylindrical pin as the center, the clamping blocks on two sides are pushed out from the arc groove, the clamping blocks are clamped in the chute, the supporting frame and the mounting plate bear the weight of the fork arm and a workpiece, the chain breakage protection function is realized, the bearing capacity of the device can be improved by the double clamping blocks, and the safety of the device is improved;

2. the clamping block, the cylindrical pin, the arc-shaped plate, the short pin, the rotating plate and the power block are protected by the arranged cylinder, so that the contact of the device with the outside is reduced, a dust guard plate is conveniently additionally arranged on the outer wall of the cylinder in the later period, and parts in the cylinder are further protected;

3. the tension borne by the chain can be monitored in real time through the arranged sensor, the numerical value detected by the sensor is displayed on the display through the controller, and people can visually know the stress condition of the chain conveniently.

Drawings

Fig. 1 is a schematic overall structure diagram of a hoist with a chain breakage protection function according to embodiment 1;

fig. 2 is a partial structural schematic diagram of a hoist with a chain breakage protection function according to embodiment 1;

fig. 3 is a partial structural schematic diagram of a hoist with a chain breakage protection function according to embodiment 2.

In the drawings: the device comprises a support frame 1, a chute 2, a cylinder 3, a chain 4, a power device 5, a fork arm 6, a mounting plate 7, a support plate 8, an arc-shaped groove 9, a clamping block 10, a cylindrical pin 11, an arc-shaped plate 12, a short pin 13, a rotating plate 14, a power block 15, a connecting rod 16, a connecting plate 17, a sensor 18, a balancing weight 19 and a support shaft 20.

Detailed Description

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, a lifting machine with a chain breakage protection function comprises a mounting plate 7, wherein a power device 5 is fixed on the mounting plate 7, two symmetrically distributed chains 4 are arranged on the outer wall of one side of the power device 5, a balancing weight 19 is arranged at one end of each chain 4, a connecting plate 17 is fixedly connected to the outer wall of one side of the balancing weight 19, a supporting shaft 20 is rotatably connected to the outer wall of one side of the connecting plate 17 through a bearing, a supporting plate 8 is fixedly connected to one end of the supporting shaft 20, a connecting rod 16 is rotatably connected to the outer wall of one side of the connecting plate 17, a power block 15 is fixedly connected to the outer wall of the connecting rod 16, rotating plates 14 are rotatably connected to the two ends of each power block 15, short pins 13 are rotatably connected to the two ends of each rotating plate 14, an arc plate 12 is rotatably connected to one end of each rotating plate, connecting rod 16's one end is rotated through the bearing and is connected with drum 3, and drum 3's outer wall symmetry has seted up two arc walls 9, and one side outer wall of mounting panel 7 is fixed with two symmetric distribution's support frame 1, and the both sides inner wall of support frame 1 equally divide cloth have a plurality of equidistance distribution's chute 2, and the one end of arc 12 all is connected with cylindric lock 11 through the bearing rotation, and the one end fixed connection of cylindric lock 11 is in one side inner wall of drum 3, connecting rod 16's outer wall fixedly connected with rope, and the other end fixed connection of rope is in the outer wall of connecting plate 17.

Wherein, chute 2 and arc 9 looks adaptation, back shaft 20 and connecting rod 16 are located the both sides of connecting plate 17, and two arcs 12 use connecting rod 16 to be central symmetric distribution as the center, and connecting rod 16 is located the both ends of connecting plate 17 in balancing weight 19, and connecting plate 17 and back shaft 20 constitute lever structure, and one side outer wall of backup pad 8 is provided with two yoke 6.

The working principle is as follows: when the lifting device works normally, the chain 4 pulls the counterweight block 19 upwards, the fixture block 10 is positioned inside the cylinder 3, the fixture block 10 is not in contact with the chute 2, and the power device 5 can smoothly drive the support plate 8 to do lifting motion through the chain 4; when the chain 4 is broken, the counterweight block 19 loses upward traction force and rotates downwards by taking the support shaft 20 as a center, the cylinder 3 cannot move left and right in the support frame 1, the connecting rod 16 and the connecting plate 17 rotate under the action of rope tension, at the moment, the power block 15 rotates by taking the connecting rod 16 as a center, the arc plate 12 is driven by the short pin 13 and the rotating plate 14 to rotate by taking the cylindrical pin 11 as a center, the clamping blocks 10 on two sides are pushed out from the arc groove 9, the clamping blocks 10 are clamped in the chute 2, at the moment, the support frame 1 and the mounting plate 7 bear the weight of the fork arm 6 and a workpiece, the chain breakage protection function is realized, and the double clamping blocks 10 can improve the bearing capacity of the device so as to improve the safety of the device; the cylinder 3 protects the clamping block 10, the cylindrical pin 11, the arc-shaped plate 12, the short pin 13, the rotating plate 14 and the power block 15, reduces the contact between the device and the outside, is convenient for additionally arranging a dustproof plate on the outer wall of the cylinder 3 in the later period, and further protects parts inside the cylinder 3.

Example 2

Referring to fig. 3, in this embodiment, compared with embodiment 1, the bottom end of each chain 4 is provided with a sensor 18, one end of each sensor 18 is arranged on the outer wall of the top of a corresponding counterweight 19, the counterweight 19 detects tension between the chain 4 and the counterweight 19, and the outer wall of one side of the mounting plate 7 is fixedly provided with a controller and a display.

The working principle is as follows: when the lifting device works normally, the chain 4 pulls the counterweight block 19 upwards, the fixture block 10 is positioned inside the cylinder 3, the fixture block 10 is not in contact with the chute 2, and the power device 5 can smoothly drive the support plate 8 to do lifting motion through the chain 4; when the chain 4 is broken, the counterweight block 19 loses upward traction force and rotates downwards by taking the support shaft 20 as a center, the cylinder 3 cannot move left and right in the support frame 1, the connecting rod 16 and the connecting plate 17 rotate under the action of rope tension, at the moment, the power block 15 rotates by taking the connecting rod 16 as a center, the arc plate 12 is driven by the short pin 13 and the rotating plate 14 to rotate by taking the cylindrical pin 11 as a center, the clamping blocks 10 on two sides are pushed out from the arc groove 9, the clamping blocks 10 are clamped in the chute 2, at the moment, the support frame 1 and the mounting plate 7 bear the weight of the fork arm 6 and a workpiece, the chain breakage protection function is realized, and the double clamping blocks 10 can improve the bearing capacity of the device so as to improve the safety of the device; drum 3 is with fixture block 10, cylindric lock 11, arc 12, short round pin 13, including rotor plate 14 and power piece 15 protection, reduce device and external contact, the dust guard is installed additional at drum 3's outer wall in the later stage of being convenient for, further protect the inside part of drum 3, sensor 18 can the real-time supervision chain 4 on the pulling force that bears, numerical value display that detects sensor 18 through the controller is on the display, the person's of being convenient for audio-visually understanding the atress condition on the chain 4, avoid the user to appear overloading and lead to the chain fracture under the condition of not knowing how much weight the chain has born, with this hoisting device's security.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a lifting machine with chain breakage protect function, includes mounting panel (7), mounting panel (7) are fixed with power device (5), and one side outer wall of power device (5) is provided with two symmetric distribution's chain (4), its characterized in that, the one end of chain (4) is provided with balancing weight (19), and one side outer wall fixedly connected with connecting plate (17) of balancing weight (19), and one side outer wall of connecting plate (17) rotates through the bearing and is connected with back shaft (20), and the one end fixedly connected with backup pad (8) of back shaft (20), one side outer wall of connecting plate (17) rotates and is connected with connecting rod (16), and the outer wall fixedly connected with power block (15) of connecting rod (16), and the both ends of power block (15) all rotate and are connected with rotor plate (14), and the both ends of rotor plate (14) all rotate and are connected with short round pin (, one end of each rotating plate (14) is rotatably connected with an arc-shaped plate (12) through a short pin (13), and the outer wall of one side of the arc-shaped plate (12) is fixedly connected with a clamping block (10), one end of the connecting rod (16) is rotatably connected with the cylinder (3) through a bearing, two arc-shaped grooves (9) are symmetrically arranged on the outer wall of the cylinder (3), two symmetrically distributed support frames (1) are fixed on the outer wall of one side of the mounting plate (7), and the inner walls of the two sides of the supporting frame (1) are distributed with a plurality of chutes (2) which are distributed at equal intervals, one end of each arc-shaped plate (12) is rotatably connected with a cylindrical pin (11) through a bearing, one end of the cylindrical pin (11) is fixedly connected with the inner wall of one side of the cylinder (3), the outer wall of the connecting rod (16) is fixedly connected with a rope, and the other end of the rope is fixedly connected with the outer wall of the connecting plate (17).

2. The hoisting machine with chain breakage protection function as claimed in claim 1, characterized in that the chute (2) is adapted to the curved groove (9).

3. The hoist with chain breakage protection function as claimed in claim 1 or 2, characterized in that the support shaft (20) and the connecting rod (16) are located on both sides of the connecting plate (17).

4. The hoisting machine with chain breakage protection function as claimed in claim 1, wherein the two arc-shaped plates (12) are arranged in a centrosymmetric manner with the connecting rod (16) as the center.

5. The lifting machine with the chain breakage protection function as claimed in claim 1, wherein the connecting rod (16) is located at two ends of the connecting plate (17) at the counterweight (19), and the connecting plate (17) and the supporting shaft (20) form a lever structure.

6. The hoisting machine with chain breakage protection function as claimed in claim 5, characterized in that two forks (6) are arranged on the outer wall of one side of the support plate (8).

7. The lifting machine with the chain breakage protection function as claimed in claim 6, wherein the bottom ends of the chains (4) are provided with sensors (18), one ends of the sensors (18) are arranged on the outer wall of the top of the balancing weight (19), the balancing weight (19) detects the tension between the chains (4) and the balancing weight (19), and the outer wall of one side of the mounting plate (7) is fixedly provided with a controller and a display.