KR20100058400A - Carrier for hoist - Google Patents

Abstract

PURPOSE: A carrier for a hoist is provided to increase the safety of the transport task by automatically adjusting the balance of a carrier according to the weight of a loaded object. CONSTITUTION: A carrier(10) for a hoist comprises a weight housing(12), a loading arm(14), a clamp(16) and a weight balancing unit. The weight housing comprises a heavy object. The loading arm is formed at one side of the weight housing. On the loading arm, the luggage is loaded. The clamp hangs and connects the weight housing on the hook(5) of the hoist. The weight balancing unit enables the position of the weight housing to be horizontally moved based on the clamp. In accordance with the weight and the layout structure of the luggage loaded on the loading arm, the weight balancing unit horizontally moves the location of the weight housing to automatically maintain balance.

Description

Carrier for hoist {Carrier for Hoist}

The present invention relates to a carrier for a hoist, which enables to carry out an efficient and safe transfer of goods by the hoist.

In general, the hoist is used to transport heavy loads that are difficult to move in the workplace, and includes a plurality of struts fixed to the ground, a rail beam connecting the struts horizontally, and the rail beams. It is installed to be movable and comprises a winch winding the wire, a trolley connected to the wire by the winch to operate up and down, and a hook connected to the trolley.

According to the hoist as described above, the load is lifted using the hook, and then the winch is moved along the rail beam to carry the load.

On the other hand, according to the conventional hoist, as described above, since the load is lifted using the hook, the load may not be directly connected to the hook, but a separate means such as a strap or a pallet for connecting the cotton hook is required. Done.

That is, the load should be tied with a strap, or the load should be placed on a pallet, and the pallet should be tied with a strap to connect with the hook.

Therefore, according to the prior art, the additional work for hooking the load body to the hook is very cumbersome, especially when using the pallet, when the center of gravity of the pallet including the load body and the supporting point by the hook is not balanced, Tilt causes a problem that the seating state of the load body may become unstable or the load body may be detached from the pallet.

The present invention has been made to solve the above-mentioned problems, and to provide a carrier for a hoist to facilitate the loading of the load body to improve the efficiency of the load conveying operation in the workplace.

A carrier for a hoist according to the present invention includes a weight housing having a weight body, a loading arm provided at one side of the weight housing, and a load for loading a load, a clamp for hanging the weight housing on a hook of a hoist, And a weight balancing means for horizontally moving the position of the weight housing relative to the clamp.

The weight balancing means includes a pair of horizontal support rods spaced apart from each other in the left and right directions on the upper surface of the weight housing, a plurality of horizontal guide rods connecting the two horizontal support rods, and guided by the horizontal guide rods. A horizontal movable block mounted between the horizontal movable block, a horizontal screw rod penetrated through the horizontal movable block, and a horizontal screw rod rotatably mounted between both horizontal support members, and rotating the horizontal screw rod A horizontal moving device including a horizontal driving motor for driving; A pair of vertical supports are spaced apart from each other in the front and rear direction on the upper surface of the horizontal moving block, a plurality of vertical guide rods connecting the two vertical supports, and guided by the vertical guide rods to linearly reciprocate between the vertical support rods A vertically movable block having a clamp on the upper surface thereof, a vertically screwed rod penetrating the vertically movable block and screwed to the vertically movable block, the vertical screw rod being rotatably mounted between the both vertical supporters, and the vertical screw. A vertical movement device including a vertical drive motor for rotating the rod; A sensing device for sensing the inclination angle of the weight housing to operate the horizontal moving device or the vertical moving device; It is made, including.

The sensing device may include a left contact sensor and a right contact sensor that are spaced apart from each other in the left and right directions in the weight housing, a horizontal swing bar that is connected to the weight housing so as to be rotatable, and freely swings in the left and right directions. A horizontal sensing unit including a horizontal contact terminal attached to a lower end of a horizontal swing bar and disposed between the two horizontal contact sensors to selectively contact both horizontal contact sensors according to a swing operation of the horizontal swing rod; A front contact sensor and a rear contact sensor spaced apart from each other in the front and rear directions by the weight housing, a vertical swing rod installed at an upper end of the weight housing so as to be freely swingable in the front and rear directions, and a lower swing rod. A vertical sensing unit attached to the front end and disposed between the front contact sensor and the rear contact sensor, the vertical sensing unit including a vertical contact terminal selectively contacting the front contact sensor and the rear contact sensor according to a swing operation of the vertical swing rod; Control circuit for controlling the operation of the horizontal drive motor and the vertical drive motor by the contact of the horizontal contact terminal to the left contact sensor and the right contact sensor and the contact of the vertical contact terminal to the front contact sensor and the rear contact sensor. ; It consists of.

The sensing device includes a safety means for preventing the swing rod from shaking rapidly.

 The safety means is connected to each of the swing rods, each of the resistance rods that are swinging together with each of the swing rods, a filling box into which the lower end of each of the resistance rods are filled, the filling box is filled in the viscosity higher than a certain value It comprises a resistive liquid having a characteristic.

The hoist carrier according to the present invention is a horizontal rotation control means interposed between the vertical movement block and the clamp of the vertical movement device so that the weight housing is rotated in the horizontal direction with respect to the clamp, the upper surface of the vertical movement block. It is attached and the drive motor is connected to the input shaft in the lateral direction, and comprises a worm reducer is connected to the clamp to the output shaft in the upward direction.

As described above, according to the carrier for a hoist according to the present invention, it is possible to carry the load by using the hoist simply by placing the load on the loading arm, and the balance of the carrier is automatically adjusted according to the load of the load. There is an advantage that the safety of the conveying operation is increased.

Hereinafter, with reference to the accompanying drawings, the specific content of the present invention will be described in detail.

As shown in FIG. 1, the hoist carrier 10 according to the present invention includes a weight housing 12 incorporating a weight body, a loading arm 14 provided at one side of the weight housing 12, and the weight. And a clamp 16 for engaging the housing 12 with the hook 5 of the hoist and a weight balancing means for moving the position of the weight housing 12 relative to the hook 5.

The weight housing 12 has a box structure that can be loaded with various weights such as sand or aggregate appropriately by opening the inside, and the horizontal sensing unit 30 and the vertical sensing unit described below as an inner space in a flat U-shape shape. It is divided into the installation space of (32) and the interior space of the weight body.

Embedding the weight body in the weight housing 12, if the weight of the weight housing 12 is too light, the carrier 10 is inclined sharply in the process of lifting the load body 7 using the carrier 10 This is because the load 7 may fall before the center of gravity is taken.

The weight balancing means detects the inclination angles of the horizontal moving device 20, the vertical moving device 22, and the weight housing 12 to operate the horizontal moving device 20 or the vertical moving device 22. The sensing device is made to include.

The horizontal moving device 20 is a pair of horizontal support 201 attached to the upper surface of the weight housing 12 spaced apart from each other in the horizontal direction, and a plurality of horizontal guide rods 202 connecting the horizontal support 201 And a horizontal movement block 203 which is guided by the horizontal guide rod 202 so as to linearly reciprocate between the horizontal support members 201 and horizontal movement through the horizontal movement block 203. Block 203 is screwed, and includes a horizontal screw rod 204 rotatably mounted between the two horizontal support 201, and a horizontal drive motor 205 for rotating the horizontal screw rod 204. It is done.

The vertical movement device 22 is a pair of vertical support 221 which is attached to the upper surface of the horizontal movement block 203 spaced apart from each other in the vertical direction, and a plurality of vertical guide rods connecting the two vertical support 221 222 and a vertical movable block 223 which is guided by the vertical guide rod 222 so as to be linearly reciprocated between the vertical support members 221 and the clamp is attached to an upper surface thereof. The vertical screw rod 224 and screw coupled to the vertical movable block 223 through the movable block 223, rotatably mounted between the two vertical support 221, and rotates the vertical screw rod 224 It includes a vertical drive motor 225 to drive.

The sensing device comprises a horizontal sensing unit 30 and a vertical sensing unit 32, the horizontal sensing unit 30, the left contact sensor 301 spaced apart from each other in the left and right directions on the weight housing 12. And the right side contact sensor 302, the horizontal swing rod 303 installed on the weight housing 12 to swing freely in the left and right directions, and attached to the lower end of the horizontal swing rod 303 to contact the left side. It is disposed between the sensor 301 and the right contact sensor 302 is composed of a horizontal contact terminal 304 to selectively contact the left and right contact sensor in accordance with the swing operation of the horizontal swing bar 303.

The horizontal swing rod 303 is mounted in such a way that the hinge rod 305 provided at the upper end thereof is freely rotatably supported by both support pieces 306 installed on the vertical wall in the installation space of the weight housing 12. .

The vertical sensing unit 32, the front contact sensor 321 and the rear contact sensor 322 which are spaced apart from each other in the front and rear direction in the weight housing 12 and swing rotation freely in the front and rear direction to the weight housing 12. The vertical swing rod 323 and the lower swing rod 323 attached to the lower end of the vertical swing rod 323 are disposed between the front contact sensor 321 and the rear contact sensor 322. It consists of a vertical contact terminal 324 selectively contacts the front and rear contact sensors in accordance with the swing operation (see Figs. 2a and 2b).

The vertical swing bar 323 is mounted in such a way that the hinge rod 235 provided at the upper end thereof is freely supported by both support pieces 326 installed on the horizontal wall in the installation space of the weight housing 12. do.

The sensing device includes a horizontal drive motor 205 and a vertical drive by contact of the horizontal contact terminal 304 to the left and right contact sensors and the contact of the vertical contact terminal 324 to the front and rear contact sensors. A control circuit for controlling the operation of the motor 225 is provided.

In addition, the sensing device includes a safety means for preventing the swing rods 303 and 323 from suddenly shaking.

The safety means are respectively connected to each of the swing rods (303, 323), each of the resistance rods 308, 328 and the swing operation with each swing rod, and the filling box into which the lower end of each resistance rod ( 307) 327 and a resistive liquid filled in the filling box and having a viscosity characteristic of a predetermined value or more.

The resistance bars 308 and 328 are provided in the hinge rods 305 and 325 supporting the swing bars 303 and 323 so as to be spaced apart from the swing bars.

Referring to the operation of the carrier for the hoist according to the present invention configured as described above are as follows.

First, the carrier for the hoist according to the present invention is mounted in a form in which the clamp 16 is connected to the hook 5 of the hoist, and the hoist is loaded in a state where the loading arm 14 is placed under the pallet or the load body 7. The carrier 10 is lifted up to lift the carrier 10. In the state where the load of the load 7 is not applied to the carrier 10, the carrier 10 is horizontally aligned with the hook 5. It is supposed to maintain state.

When the carrier 10 is towed up by the hoist and the load of the load 7 loaded on the loading arm 14 is applied to the carrier 10, initially the weight deviation of the load 7 and the carrier 10 is varied. As a result, the balance of the carrier 10 is disturbed about the hook 5, and the weight of the load body 7 is inclined in a biased direction.

However, the center of gravity of the carrier 10 is moved by the weight balancing means to cancel the load load applied to the carrier 10 by the load body 7 so as to maintain the equilibrium.

The operation of the weight balancing means detects the direction in which the carrier 10 is inclined by the sensing device, and operates the horizontal moving device 20 and the vertical moving device 22 in accordance with the direction in which the carrier 10 is inclined. It proceeds through the process of moving the center of gravity of the carrier (10), each process will be described in detail as follows.

First, when the load body 7 is loaded to the left or right side and the carrier 10 is inclined to the left or right side, the left contact sensor 301 and the right contact sensor 302 fixed to the weight housing 12 are Although tilted together with the weight housing 12, the horizontal swing bar 303 maintains a vertical state toward the ground due to the characteristics of free swing, so that the horizontal contact terminal 304 provided at the bottom of the horizontal swing bar 303 is provided. By being in contact with the left contact sensor 301 or the right contact sensor 302 it detects the direction in which the center of gravity is deflected.

That is, as shown in FIG. 2A, when the carrier 10 is inclined to the left and the horizontal contact terminal 304 comes into contact with the left contact sensor 301, the control circuit determines that the center of gravity of the carrier 10 is biased to the left. The horizontal screw rod 204 is rotated by the horizontal driving motor 205 of the horizontal moving device 20 to move the horizontal moving block 203 to the left side of the weight housing 12.

At this time, since the carrier 10 is suspended from the hook 5, the position of the weight housing 12 and the load 7 is relatively relative to the clamp 16 when the horizontal movable block 203 is moved. It will move to the right.

Therefore, the center of gravity of the carrier 10 including the load 7 moves to the right to coincide with the hook 5 so that the carrier 10 remains in balance again, and the carrier recovers the equilibrium so that the horizontal contact terminal When the 304 is separated from the left contact sensor 301, the operation of the horizontal drive motor 205 is stopped by judging such a situation, and thus the movement of the horizontal moving block 203 is stopped.

When the carrier 10 is inclined to the right side, as shown in FIG. 2B, the horizontal contact terminal 304 comes into contact with the right contact sensor 302, and the sensing action of the carrier 10 including the load body 7 is performed. The operation of regaining the center of gravity is performed.

When the carrier 10 is inclined in all directions, the vertical swing bar 323 of the vertical sensing unit 32 comes into contact with the front contact sensor 321 as shown in FIG. 3A, and the control circuit of the carrier 10 Judging that the center of gravity is biased forward, the vertical screw rod 224 is rotated by the vertical drive motor 225 of the vertical transfer device 22 so that the vertical block 223 moves forward of the weight housing 12. As a result, the center of gravity of the carrier 10 including the load body 7 is moved to the rear to recover the equilibrium again.

Then, the load body 7 is loaded on the carrier 10 to maintain an equilibrium, and then the load body 7 is transported, the carrier 10 is lowered to the ground, the load body 7 is lowered, and the carrier 10 is lowered. When the towing is pulled up again, the load of the load 7 suddenly disappears, and the center of gravity of the carrier 10 is biased backward.

Accordingly, the carrier 10 is inclined backwards, at which time the vertical swing bar 323 of the vertical sensing unit 32 is relatively swing-operated as shown in FIG. 3B so that the vertical contact terminal 324 is in rear contact. Contact with the sensor 322 causes the carrier 10 to regain equilibrium.

That is, the sensing operation of each of the sensing units 30 and 32 and the operation of the moving device 20 and 22 are the same in principle, but the operation principle is the same, and according to the inclination direction of the carrier 10 individually. By operating simultaneously or simultaneously, the carrier regains its center of gravity and maintains equilibrium.

On the other hand, in the towing up process of the carrier 10, the carrier 10 can be tilted and shaken severely in the process of regaining the equilibrium, in which case each swing rod 303, 323 also repeats the swing operation for a short time. As a result, it may be expected that a phenomenon of repeatedly contacting each of the opposing contact sensors and in connection with this may cause the mobile device to be excessively operated.

However, in the present invention, each of the resistance rods 308 and 328 constituting the safety means are associated with the swing rods 303 and 323 through the hinge rods 305 and 325, and the filling boxes 307 and 327. Since it is contained in the resistive liquid, the swing rods 303 and 323 are limited in the movement of the resistive rods 308 and 328 by the resistive liquid even when the carrier 10 is severely shaken. Unlike the carrier 10 does not move lightly.

Therefore, even when the carrier 10 is shaken, the swing rods 303 and 323 are not affected by the small movement of the carrier 10, and the center of gravity is deflected so as to react only in a direction that is greatly inclined. Will stably maintain equilibrium.

Meanwhile, the hoist carrier 10 according to the present invention is interposed between the vertically movable block 223 and the clamp 16 of the vertically moving device 22 so that the weight housing 12 is based on the clamp 16. It may also comprise a horizontal rotation control means for rotating in the horizontal direction.

The horizontal rotation control means includes a worm reducer 40 and a driving motor 42 for operating the worm reducer 40 attached to the upper surface of the vertical movable block 223 as shown in Figure 4a, 4b. Is done.

The worm reducer 40 is provided with an input shaft in a lateral direction, an output shaft in an upward direction, and the input shaft and the driving motor 42 are connected, and the clamp 16 is connected to the output shaft.

The drive motor 42 is configured to be controlled by the controller of the hoist.

The worm reducer 40 is a well-known technique, but is not shown in the drawing, but there is a worm gear and a worm wheel gear connected thereto, and the worm gear is connected to the input shaft and the worm wheel gear is connected to the output shaft. The rotational operation of the worm gear by the drive motor 42 is operated in such a manner as to decelerally transfer the worm gear to the output shaft through the worm wheel gear.

According to the present invention as described above the balancing operation in the process of lifting the load by using the carrier 10 is made in the same manner as in the previous embodiment, the operator in the state in which the carrier 10 is towed and lifted by the hoist When the driving motor 42 of the horizontal rotation control means is operated, the output shaft of the worm reducer is rotated so that the carrier 10 is horizontally rotated relative to the clamp 16.

Therefore, the user can finely adjust the position and direction of laying down the load body 7 by rotating the carrier 10 in the direction desired by the operator.

1 is a perspective view showing the configuration of a carrier for a hoist according to the present invention.

Figure 2a, 2b is an illustration showing the left and right balance maintenance operation of the carrier for the hoist according to the present invention.

Figure 3a, 3b is an exemplary view showing the front and rear balancing operation of the carrier for the hoist according to the present invention.

Figure 4a, 4b is an exemplary view showing a horizontal rotation operation of the carrier for the hoist according to the invention.

<Explanation of symbols for the main parts of the drawings>

10: carrier 12: weight housing

14: loading arm 16: clamp

20: horizontal moving device 22: vertical moving device

30: horizontal sensing unit 32: vertical sensing unit

40: Worm Reducer

Claims (6)

Weight housing with built-in weight The loading arm is provided on one side of the weight housing, the load is loaded, Clamp for hanging the weight housing to the hook of the hoist Weight balancing means for horizontally moving the position of the weight housing relative to the clamp; By being made to include; A carrier for a hoist, in which the weight balancing means horizontally shifts the position of the weight housing in accordance with the load and placement structure of the load loaded on the loading arm. The method of claim 1, The weight balancing means A pair of horizontal supports attached to the upper surface of the weight housing and spaced apart from each other in the left and right directions; And a plurality of horizontal guide rods connecting the horizontal support, A horizontal moving block which is guided by the horizontal guide rod and is mounted to linearly reciprocate between the two horizontal supports; A horizontal screw rod penetrating the horizontal movable block and screwed to the horizontal movable block, the horizontal screw rod being rotatably mounted between the horizontal horizontal supports; A horizontal moving device including a horizontal driving motor for rotating the horizontal screw rod; A pair of longitudinal supports which are spaced apart from each other in the front and rear directions on the upper surface of the horizontal moving block; A plurality of vertical guide rods connecting the two vertical supports; A vertical movable block which is guided by the vertical guide rod so as to be linearly reciprocated between the two vertical supports and provided with the clamp on an upper surface thereof; A vertical screw rod penetrating the vertical movable block and screwed with the vertical movable block, the vertical screw rod being rotatably mounted between the vertical longitudinal supports; A vertical movement device including a vertical drive motor for rotating the vertical screw rod; A sensing device for sensing the inclination angle of the weight housing to operate the horizontal moving device or the vertical moving device; Hoist carrier comprising a. The method of claim 2, wherein the sensing device A left contact sensor and a right contact sensor spaced apart from each other in the left and right directions on the weight housing; A horizontal swing rod having an upper end rotatably connected to the weight housing so as to swing freely in left and right directions; The horizontal contact terminal is attached to the lower end of the horizontal swing rod and disposed between the two horizontal contact sensors to selectively contact both horizontal contact sensors according to the swing operation of the horizontal swing rod. Horizontal sensing unit comprising a; A front contact sensor and a rear contact sensor spaced apart from each other in the front and rear directions in the weight housing; An upper swing rod connected to the weight housing so as to swing freely in a front and rear direction, and a vertical swing rod installed in the weight housing; The vertical contact terminal is attached to the lower end of the vertical swing rod and disposed between the front contact sensor and the rear contact sensor to selectively contact the front contact sensor and the rear contact sensor according to the swing operation of the vertical swing rod. Vertical sensing unit comprising a; Control for controlling the operation of the horizontal drive motor and the vertical drive motor by the contact of the horizontal contact terminal to the left contact sensor and the right contact sensor and the contact of the vertical contact terminal to the front contact sensor and the rear contact sensor. Circuit Carrier for hoist consisting of. The method of claim 2, wherein the sensing device Comprising safety measures to prevent the swing rods from swinging sharply Hoist carrier, characterized in that. The method of claim 4, wherein the safety means A resistance bar connected to each of the swing bars and swinging together with each swing bar, respectively; A filling box into which the lower ends of the resistance bars are drawn in; Resistant liquid filled in the filling box and having a viscosity characteristic of a predetermined value or more By being made including The movement of the resistance rod is slowed by the resistance of the resistance liquid, and the resistance action of the resistance rod is transmitted to the swing rod, so that the movement of the swing rod is also slowed down. Hoist carrier, characterized in that. The method of claim 2, A horizontal rotation control means interposed between the vertical movement block and the clamp of the vertical movement apparatus to rotate the weight housing in a horizontal direction with respect to the clamp; Worm reducer is attached to the upper surface of the vertical movable block and the drive motor is connected to the input shaft in the lateral direction, the clamp is connected to the output shaft in the upward direction By being made including The output shaft of the worm reducer is rotated by the operation of the drive motor to adjust the horizontal angle of the weight housing by rotating the worm reducer horizontally relative to the clamp. Hoist carrier, characterized in that.

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