KR102539417B1 - Trolley for Monorail Hoist Motor Replacement - Google Patents

Abstract

Disclosed is a trolley for replacing a monorail hoist motor to safely and quickly tow and lower a motor separated while being fixed to a monorail. According to the present invention, the trolley is used for lowering a motor separated from a hoist from a monorail on the ground to the ground. The trolley comprises: a fixed plate having a roller movably positioned at the lower part of one side of the monorail; a moving plate installed opposite the fixed plate, having the width capable of being adjusted to suit the width of the lower part of the monorail, and including a roller movably positioned at the lower part of the other side of the monorail; a pair of spacers installed between the moving plate and the fixed plate; a rotating rod rotatably installed on the moving plate and the fixed plate between the pair of spacers; a handle unit connected to the rotating rod and installed outside the fixed plate to rotate the rotating rod; and a rope wound around the rotating rod and provided with a towing hook at one end to tow the motor and be pulled out according to the rotation of the rotating rod.

Description

Trolley for Monorail Hoist Motor Replacement}

The present invention relates to a motor applied to a hoist to provide rotational power, and more particularly, to a trolley for replacing a monorail hoist motor capable of safely lowering a heavy motor from a monorail during motor maintenance.

In general, a hoist moves and transports a heavy object by performing a three-dimensional movement combining a vertical movement of raising and lowering and a horizontal movement of traveling or turning in a lateral direction.

These hoists are used for transporting cargo in warehouses, railway stations, mold factories, casting factories, etc., or for mechanical disassembly and assembly in factories, and lift heavy objects through motor operation, or transfer them in a raised state to move them to a desired location.

The hoist is composed of a prime mover, a gear reduction device, a brake, etc., and a hook is attached to the end of a load chain to lift the cargo and move it to a desired position. will use

The hoist is largely divided into a manual hoist operated by a worker directly moving a chain and an electric hoist operated using a motor according to an operating method.

In addition, depending on the place of use and the structure of the machine, it can be divided into a low head type used in places with low ceilings and a double rail type that runs on two monorails.

As a motor applied to the hoist as described above, a vane motor using fluid pressure is widely used.

The vane motor is also configured to selectively supply fluid by making a separate fluid supply position in order to change the rotational direction of forward rotation and reverse rotation.

In this case, all the fluid inside the vane motor is not discharged, and some residual fluid remains inside the vane motor, and this residual fluid continuously accumulates inside the vane motor, increasing its pressure and reducing the output of the vane motor. There is a problem that causes it to drop.

In addition, when this problem becomes severe, there is a problem in that the driving of the vane motor stops.

Furthermore, even if it is not a vane motor, general motors have a set usage time, and if used beyond the usage time, a failure occurs and must be replaced.

If the drive stops as described above, the motor must be repaired, but it is difficult to separate the motor from the monorail at a high position and safely descend, so that the motor is damaged or a safety accident occurs, resulting in damage to the operator.

Republic of Korea Patent Registration No. 10-1685051 (Announcement date: December 20, 2016) Republic of Korea Utility Model Publication No. 20-2021-0002777 (published on December 13, 2021)

Embodiments of the present disclosure are intended to improve the above-described problems and limitations of lowering a conventional heavy-duty motor, and are for replacing a monorail hoist motor that can safely and quickly descend by pulling a motor separated from a fixed state to a monorail. It is to provide a trolley.

The technical problems to be achieved in the embodiments of the present disclosure are not limited to the above-mentioned matters, and other technical problems that are not mentioned are not limited to those skilled in the art from various embodiments to be described below. can be considered by

In the trolley for replacing the monorail hoist motor according to the spirit of the present invention, a fixed plate having a roller movably positioned on the bottom of one side of the monorail, and installed opposite to the fixed plate, but the width is adjusted to fit the bottom width of the monorail A movable plate having rollers movably positioned on the bottom of the other side of the monorail, a pair of spacers installed between the movable plate and the fixed plate, and the movable plate between the pair of spacers A rotating rod rotatably installed on the fixing plate, a handle portion connected to the rotating rod and installed outside the fixing plate to rotate the rotating rod, and a handle portion wound around the rotating rod and provided with a towing hook at one end to pull the motor. To include a rope that is drawn out according to the rotation of the rotating rod.

According to an embodiment of the present invention, a threaded portion having a certain length is formed at an end side toward the moving plate at intervals of the pair, and a fastening member is formed to be rotatably penetrating the moving plate, and the fastening member As the movable plate moves forward and backward, width adjustment with respect to the fixed plate may be performed.

According to an embodiment of the present invention, the movable plate is separately configured and assembled into a first movable plate having rollers and a second movable plate having the fastening member, and the second movable plate protrudes upward. An insertion fixture may be formed, and an insertion fixing groove may be formed in the first movable plate to correspond to and assemble the insertion fixture.

According to an embodiment of the present invention, the rotating rod may be formed as a curved node along the length direction to prevent twisting of the rope that is wound and then drawn out.

According to an embodiment of the present invention, a hollow tube having a predetermined length is formed inside an end facing the handle portion of the rotating rod, a spring is positioned inside the hollow tube, and a guide groove formed along an axial direction of the hollow tube and A rotation control unit formed of a circumferential guide groove in a circumferential direction is formed so as to communicate with the guide groove as a center, and one end is connected to the handle and the other end is inserted into the hollow tube while compressing the spring to engage the rotation control unit. It is possible to construct a handle shaft with protruding pins.

In the trolley for replacing the monorail hoist motor according to the present invention, there is an effect of safely and quickly descending by towing the separated motor in a state fixed to the monorail.

In addition, according to the embodiments of the present disclosure, the motor replacement trolley is adjustable in width when fixed to a monorail, so there is an effect that can be universally applied to a monorail.

1 is a view showing a hoist generally installed on a monorail,
2 is a perspective view of a trolley for replacing a monorail hoist motor according to an embodiment of the present invention;
Figure 3 is an exploded perspective view of Figure 2,
4 is a view showing the width adjustment of the moving plate in the trolley for replacing the monorail hoist motor according to an embodiment of the present invention;
5 is an excerpted perspective view showing a rotating rod and a handle axis in a trolley for replacing a monorail hoist motor according to an embodiment of the present invention;
6 is a view showing an operating state in a trolley for replacing a monorail hoist motor according to an embodiment of the present invention.

The embodiments described in this specification and the configurations shown in the drawings are only one preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings in this specification at the time of filing of the present application.

The same reference numerals or numerals presented in each drawing in this specification indicate parts or components that perform substantially the same function. The shapes and sizes of elements in the drawings may be exaggerated for clarity.

Terms used in this specification are used to describe the embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “include” or “have” are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It does not preclude in advance the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Terms including ordinal numbers such as “first” and “second” used herein may be used to describe various components, but the components are not limited by the terms, and the terms are one It is used only for the purpose of distinguishing a component from other components. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The term “and/or” includes any combination of a plurality of related recited items or any one of a plurality of related recited items.

Terms such as "... unit", "... unit", and "module" described in the specification mean a unit that processes at least one function or operation, which is implemented by hardware or software or a combination of hardware and software. It can be. Also, “a or an”, “one”, “the” and like related words are used herein in the context of describing various embodiments (particularly in the context of the claims below). Unless otherwise indicated or clearly contradicted by context, both the singular and the plural can be used.

The terms "top", "bottom", "front", "rear", etc. used below are defined based on the drawings, and the shape and position of each component are not limited by these terms.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

Here, Figure 1 is a view showing a hoist generally installed on a monorail, Figure 2 is a perspective view of a monorail hoist motor replacement trolley according to an embodiment of the present invention, Figure 3 is an exploded perspective view of Figure 2, Figure 4 is this A view showing the width adjustment of a moving plate in a trolley for replacing a monorail hoist motor according to an embodiment of the present invention, and FIG. 5 is an excerpted perspective view showing a rotating rod and a handle axis in a trolley for replacing a monorail hoist motor according to an embodiment of the present invention. 6 is a view showing an operating state in a trolley for replacing a monorail hoist motor according to an embodiment of the present invention.

As shown in FIG. 1, the trolley for replacing the monorail hoist motor in the present invention is for safely lowering the heavy motor from the monorail 30 when replacing the motor 20, which is a driving means of the hoist 10, for maintenance or failure. It is a device.

The hoist 10 is a device that moves and transports heavy objects by performing three-dimensional movement combining vertical movement using a motor 20 and horizontal movement of traveling or turning in a lateral direction, and a monorail 30 ) will run on it.

For reference, the monorail 30, when viewed in cross section, has a bottom 32 and a top where the roller rolls in an “I” shape, and a head 34 with a smaller width than the bottom 32, and the head 34 and the bottom It may be composed of a neck portion 36 connecting (32).

Referring to FIG. 2 or 3 for the configuration of the trolley 100 for lowering the motor 20 according to the features of the present invention will be described in detail.

The trolley 100 is formed between a fixed plate 110 including rollers, a movable plate 120 installed at a position opposite to the fixed plate 110, and between the movable plate 120 and the fixed plate 110. A pair of spacers 140 installed, a rotating rod 150 rotatably installed on the moving plate 120 and the fixed plate 110 like the spacer 140, and a handle for rotating the rotating rod 150 It may include a rope 160 wound around the unit 170 and the rotating rod 150 and drawn out according to rotation.

The fixing plate 110 is manufactured in a metal plate shape with a certain area, and a roller contacting the bottom 32 of the monorail 30 may be installed on the upper side.

The roller is preferably composed of a pair, and is referred to as a fixed roller 112 for convenience of description.

The fixing roller 112 is rotatably installed on the fixing plate 110, and is prevented from falling out with a nut or the like from the outside of the fixing plate 110.

Also, a movable plate 120 is installed facing the fixed plate 110 .

It may be preferable that the movable plate 120 has a plate shape of a metal material like the fixed plate 110 and is manufactured to have the same area.

In addition, a pair of movable rollers 122 in contact with the bottom 32 of the monorail 30 may be rotatably installed on the movable plate 120, like the fixed roller 112.

Here, the movable plate 120 may be adjustable in width with the fixed plate 110 to suit the width of the bottom 32 of the various monorails 30.

Previously, a spacer 140 is installed between the fixed plate 110 and the movable plate 120, and at least two of the spacer 140 may be installed side by side and spaced apart.

In addition, the movable plate 120 is installed to be movable from the spacer 140 so that the width of the moving plate 120 is adjusted with the fixed plate 110 .

Adjusting the width of the moving plate 120 will be described with reference to FIG. 4 .

The spacer 140 has a rod shape, and a threaded portion 142 having a predetermined length may be formed at an end side toward the moving plate 120 .

In addition, the fastening member 130 may be installed on the same line as the threaded portion 142 on the moving plate 120 .

The fastening member 130 is installed through the movable plate 120 and is rotatably installed, and a threaded hole 131 corresponding to the threaded portion 142 is formed on the end side toward the threaded portion 142 inwardly.

Therefore, the width can be adjusted while horizontally moving along the threaded portion 142 coupled to the threaded hole 131 by the rotation of the fastening member 130 .

In the fastening member 130, an integrated stepped portion 132 is formed at a portion in contact with the inner surface of the moving plate 120, and a snap ring 133 is installed on the outer surface of the moving plate 120.

In addition, gripping pins 134 installed through the fastening member 130 in the orthogonal direction are installed in the fastening member 130 protruding toward the outer surface of the moving plate 120, so that the fastening member 130 can be easily rotated.

Subsequently, the moving plate 120 may be configured to be separated into a portion where the moving roller 122 is located and a portion where the fastening member 130 is located.

That is, the first moving plate 120a having the moving roller 122 and the second moving plate 120b having the fastening member 130 may be separately configured and assembled, and the second moving plate 120b ) may be formed with an insertion fixture 138 protruding upward, and an insertion groove 136 may be formed in the first movable plate 120a to correspond to and assemble the insertion fixture 138.

The first moving plate 120a and the second moving plate 120b can be assembled by forcibly inserting the insertion fixture 138 into the insertion fixing groove 136, which is a state in which the heavy moving roller 122 is integrally installed. This is because it is easier to perform the work of assembling the first moving plate 120a after first adjusting the width to a certain extent using the second moving plate 120b rather than adjusting the width of the moving plate 120 in .

And between the movable plate 120 and the fixed plate 110, a rotating rod 150 is installed like a pair of spacers 140.

It is installed between the spacers 140 installed side by side of the rotating rod 150, and is rotatably installed on the moving plate 120 and the fixed plate 110.

In addition, a rope 160 for pulling the separated motor 20 is wound around the rotating rod 150 and is drawn out as the rotating rod 150 rotates.

The rope 160 is general, and a separate description is omitted, and a tow ring 162 for hooking the motor 20 is provided at the end side.

The rope 160 in the present invention may be twisted because it is a pull-out operation that is naturally unwound by the rotation of the rotating rod 150 without a separate device.

Therefore, the rotating rod 150 may be formed as a curved node along the longitudinal direction in order to prevent twisting of the rope 160.

The curved nodes are continuously formed along the longitudinal direction of the rotating rod 150.

The rope 160 is continuously and neatly wound while moving along the curve of the rotating bar 150, and can be drawn out sequentially in a state in which left and right movement is restricted by the curve during withdrawal.

5 describes the handle part 170, and the handle part 170 is connected to the rotating rod 150 and is installed outside the fixing plate 110 to manually rotate the rotating rod 150.

The handle unit 170 may again include a wheel-shaped handle 172 and a handle shaft 174 protruding toward the center of the handle 172 and connected to the rotating rod 150 .

According to the features of the present invention, a hollow tube 152 having a certain length is formed in the inner end of the rotating rod 150 toward the handle portion 170.

A spring 153 is positioned inside the hollow tube 152, and a handle shaft 174 is installed while compressing the spring 153 into the hollow tube 152.

In addition, a “T” shaped groove may be formed in the hollow tube 152, and a guide groove 154a of a date formed along the axial direction of the hollow pipe 152 is formed, and the guide groove 154a is the center. To form a rotation control unit 154 made of a circumferential guide groove (154b) in the circumferential direction so as to communicate.

A locking pin 174a bound to the rotation control unit 154 protrudes integrally from the handle shaft 174.

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The operation of the trolley for replacing the monorail hoist motor according to the present invention having the above configuration will be described with reference to FIG. 6.

First, the trolley 100 is installed close to the monorail 30 on which the hoist 10 is installed.

Since the width of the bottom part 32 of the monorail 30 is different for each monorail 30, it is necessary to adjust the width of the moving plate 120.

With the fixing roller 112 of the fixing plate 110 positioned at the bottom 32, the spacer 140 is rotated by using the gripping pin 134 of the second movable plate 120b to rotate the fastening member 130. While moving forward and backward along the threaded portion 142 of the fixing plate 110 and adjusting the width, it is brought into close contact with the bottom portion 32.

When the second movable plate 120b is located to some extent on the bottom 32 side, the insertion fixing groove 136 of the first movable plate 120a is placed in the insertion fixture 138 of the second movable plate 120b. do.

After that, the degree of close contact may be further adjusted by using the fastening member 130 again.

Next, for replacement or maintenance, hang the traction hook 162 of the rope 160 on the motor 20 before separation from the hoist 10, separate the motor 20, and then slowly turn the handle part 170 manually. will make it work

As the rotating rod 150 connected by the rotation of the handle part 170 rotates and the rope 160 is released, the motor 20 descends to the ground.

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Although not shown here because the rotation of the handle unit 170 is not fundamentally braked, according to another embodiment, a safety ring is installed on the handle 172, and the safety ring is fastened to the fixing plate 110 to handle the handle unit ( 170) can be prevented from rotating.

Meanwhile, when the motor 20 is seated on the ground, the rotational operation of the handle unit 170 is also stopped, and the motor 20 is separated from the towing ring 162.

When replacing the motor 20, the new motor 20 is hung on the towing ring 162, the handle part 170 is rotated to raise and lower the motor 20, and when approaching the monorail 30, the operator hoist ( 10) is concluded.

As described above, it is possible to lower the monorail safely and quickly by towing the separated motor while it is fixed to the monorail.

In addition, the trolley for replacing the motor can be adjusted in width when fixed to the monorail, so it can be applied to the monorail for general use.

In addition, it is possible to temporarily adjust the loosening of the trolley for motor replacement, so that safety accidents can be prevented.

In the above, specific embodiments have been illustrated and described. However, it is not limited to the above-described embodiments, and those skilled in the art will be able to make various changes without departing from the gist of the technical idea of the invention described in the claims below. .

10: hoist 20: motor
30: monorail 32: bottom
34: head 36: neck
100: trolley 110: fixed plate
112: fixed roller 120: moving plate
122: moving roller 130: fastening member
131: threaded hole 132: stepped part
133: snap ring 134: gripping pin
136: insertion fixing groove 138: insertion fixture
140: spacer 142: screw part
150: rotating rod 152: hollow tube
154: rotation control unit 154a: guide groove
154b: circumferential guide groove 160: rope
162: towing hook 170: handle
172: handle 174: handle axis
174a: locking pin

Claims (5)

As a trolley for lowering the motor separated from the hoist from the monorail on the ground to the ground,
A fixing plate having a roller movably positioned on one bottom of the monorail;
A movable plate installed facing the fixed plate, the width adjusted to fit the bottom width of the monorail, and having a roller movably positioned at the bottom of the other side of the monorail;
A pair of spacers installed between the movable plate and the fixed plate;
A rotating rod rotatably installed on the movable plate and the fixed plate between the pair of spacers;
A handle portion connected to the rotating rod and installed outside the fixing plate to rotate the rotating rod, and
It includes a rope wound around the rotating rod and provided with a tow ring at one end to pull the motor and be drawn out according to the rotation of the rotating rod,
At intervals of the pair, a screw portion having a certain length is formed on the end side facing the moving plate,
A fastening member and a gripping pin for rotation are installed on the fastening member to be rotatable through the moving plate, and the moving plate is moved forward and backward by the fastening member to adjust the width with the fixed plate.
The moving plate,
A first moving plate having rollers;
It is assembled and installed by being separated and configured as a second movable plate having the fastening member,
An insertion fixture protruding upward is formed on the second movable plate,
An insertion fixing groove is formed on the first movable plate to correspond to and assemble the insertion fixture,
The rotating rod,
It is formed as a curved node along the length direction to prevent twisting of the rope that is wound and drawn out,
A trolley for replacing a monorail hoist motor, wherein a safety ring fastened to the fixing plate is further installed on the handle portion to temporarily stop the rotation of the handle.


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