TW202419360A - Suspended overhead traveling crane carrying device which is advantageous in having a simple structure, reduced cost, easy maintenance, and smooth rotation and operation - Google Patents

Abstract

Provided is a suspended overhead traveling crane carrying device, which includes: a track module divided into a straight path and a turning path at a bifurcation point; and an overhead traveling crane provided with an operating mechanism on the track module. The operating mechanism is provided with two slip-limit differential gears. Two slip-limit differential wheels are driven by and extended from both sides of the slip-limit differential gear. The two slip-limit differential gears are provided with four transmission slip-limit differential wheels in total. When the operating mechanism passes through the slip-limit differential wheels of the curved track, the rotation speed can be self-adjusted due to the speed difference generated by the slip-limit differential gears. When one of the slip-limit differential wheels passing through the straight or arc-like blank track is suspended, another wheel of the same slip-limit differential gear can achieve continuous and smooth movement output without encountering slippage and idling operation, which means that the other three non-suspended slip-limit differential wheels are located on the straight or curved track to transmit power normally. There is no need to use other supplementary tracks and related components, and the overall carrying device is advantageous in having a simple structure, reduced cost, easy maintenance, and smooth rotation and operation.

Description

Suspended overhead crane handling device

The present invention provides a technical field of an overhead rail unmanned transport vehicle (OHT), and in particular, provides a suspended overhead crane transport device, which is mainly equipped with two sets of limited slip differentials to drive four main transmission limited slip differential wheels, so that when one limited slip differential wheel is suspended through a straight or arc-shaped blank track section, the limited slip differential enables the other limited slip differential wheel to achieve continuous and stable movement output without slipping and idling. The overall transport device can be simple in structure, low in cost, easy to maintain, and has smooth rotation and operation.

Referring to FIG. 8, it is a patent application No. 109124616 for a "suspended transport device" invention, and the independent items of the patent application scope include: "a track module 70, including a main track 71 and a first track 711; wherein the track module 70 defines a trolley turning path P1 extending from the main track 71 to the first track 711; and a differential trolley 60, movably mounted on the track module 70, and the differential trolley 60 includes: a moving machine The mechanism 61 includes two differential wheels 612 located at opposite sides and a driving unit 614 connected to the two differential wheels 612; wherein when the differential overhead crane 60 moves from the main track 71 along the overhead crane turning path P1 to the first track 711, the driving unit 614 can drive the two differential wheels 612 to roll forward on the first track 711 at different rotation speeds; and a vehicle body 62 connected to the operating mechanism 61 and suspended below the track module 70; ... ". This paragraph of the discussion in claim 1 of the prior art must be combined with claim 2 of the prior art: "The driving unit includes two driving motors capable of independently driving the two differential wheels, and when the differential overhead crane moves from the main track along the overhead crane turning path to the first track, the two driving motors can respectively drive the two differential wheels to roll forward on the first track at different rotation speeds." It is necessary to read the previous claim 3: "The drive unit includes: a differential connected to the two differential wheels; and a drive motor connected to the differential; wherein, when the differential overhead travelling vehicle moves from the main track along the overhead travelling vehicle turning path to the first track, the drive motor can drive the two differential wheels to roll forward on the first track at different rotation speeds through the differential." Only then can we have a comprehensive understanding that claim 1 is a running mechanism including two differential wheels and a drive unit connected to the two differential wheels. Claim 2 is that the drive unit is two independent drive motors, one of which drives one differential wheel. Request 3 is that the drive unit is a differential connected to two differential wheels. Therefore, whether it is a differential or two drive motors, it will still have the problem of idling in the gap of the track, causing the trouble of power output failure. It is necessary to design "two complete sets of supplementary tracks, including power and control equipment", and to make a blank space on the track at the divergence to accommodate two sets of supplementary tracks for assembly of two sets of supplementary tracks, so as to solve the problem of possible idling or no power output. On the other hand, the power is only dependent on two wheels, which is more likely to have idling, slipping, errors and other problems than four-wheel power equipment.

The scope of the patent application of the prior art is as follows: Claim 1: “… wherein the first rail 711 is formed with a first broken groove 721 on the overhead travelling vehicle turning path P1, and the rail module 70 comprises: a first supplementary rail 74, mounted on the first rail 711 and movably disposed in the first broken groove 721 so as to be located on the overhead travelling vehicle turning path P1; and a first switching mechanism 75, connected to the first supplementary rail 74, and the first switching mechanism 7 5 can drive the first supplementary rail 74 to move between a first initial position and a straight position; wherein, when the first supplementary rail 74 is at the first initial position, the position of the first supplementary rail 74 corresponds to the first rail 711; when the first supplementary rail 74 is at the straight position, a part of the first supplementary rail 74 is located on the overhead travelling path P2 and between the main rail 71 and the second rail 73. ". The discussion in the first claim of the prior art is all about the design and function of the first supplementary track 74. The reason why the first supplementary track 74 and the second supplementary track 76 are designed in the first and eighth claims of the prior art is mainly due to the design defect of the prior art. The two drive motors 6141 and the two differential wheels 612 can adapt to the changes of straight and turning, but designing a turning track on a straight track, or designing a straight track on a turning track, will inevitably lead to a straight-moving defect. There is no track section at the mouth and no track section at the gap of a turn, so the method known in the previous case is to dynamically use the first supplementary track 74 or the second supplementary track 76 to fill the gap in time, so as to avoid the situation where one of the differential wheels 612 is idling and unable to transmit power. However, such a complex design control must be done at each divergence point, and the cost will inevitably increase significantly. In addition, any point must avoid the situation of control error, but so many control devices are added, which also greatly increases the error rate.

The known previous solution only has one set of two main power wheels, so it can only be installed in the middle of the vehicle body, and then one driven wheel is installed on each of the four sides, a total of four. The purpose is only to support the vehicle body and has no other function. It is completely useless when the power slips or idles. The power is only available on the two sides in the middle, not in the front and rear, which is easy to cause errors. The known previous solution only uses the known differential, so there will be problems such as slipping, idling and power failure.

The limited slip differential (LSD) can ensure the power output of the driving wheel. The purpose of the limited slip differential is to improve the conventional differential. When the driving wheel has too much power output or the ground is too slippery, or one wheel is suspended, causing one driving wheel to slip, and the other wheel also loses power at the same time, making the vehicle unable to escape or having poor tracking performance.

Therefore, in view of the problems existing in the above-mentioned knowledge structure, how to develop a more ideal and practical innovative structure is what consumers are eagerly looking forward to, and it is also the goal and direction that relevant industries must work hard to develop breakthroughs.

In view of this, the inventor, based on his many years of experience in manufacturing, developing and designing related products, has designed and carefully evaluated the above-mentioned goals and finally obtained this invention which is truly practical.

The main purpose of the present invention is to provide a suspended overhead crane transport device, which is mainly equipped with two limited slip differentials, and the two sides of the limited slip differential extend to two limited slip differential wheels. The two limited slip differentials together have four transmission limited slip differential wheels. When the operating mechanism passes through a curved track, the limited slip differential wheel can adjust the speed automatically due to the speed difference generated by the limited slip differential. When passing through a straight or arc-shaped blank track section, the limited slip differential wheel can adjust the speed automatically. When one limited slip differential wheel is suspended, the other wheel of the same limited slip differential can achieve continuous and stable movement output without slipping and idling, which means that the other three non-suspended limited slip differential wheels can transmit power normally on the straight or curved track without the need to use other supplementary tracks and related components. The overall handling device can be simple in structure, reduce costs, easy to maintain, and have smooth rotation and operation.

To achieve the above-mentioned purpose, the present invention provides a suspended overhead crane transport device, which comprises: a track module including a main track with a straight track, a straight blank track section, a curved track and an arc blank track section arranged at a branch point; an overhead crane is provided with a running mechanism on the track module; a vehicle body is connected to the running mechanism and suspended below the track module; the running mechanism is provided with two limited slip differentials, and transmission extends from both sides of the limited slip differential to two limited slip differential wheels, and the two limited slip differentials have a total of four transmission limited slip differential wheels. When the running mechanism passes through the curve, The limited slip differential wheels on the curved track can adjust their speed automatically due to the speed difference generated by the limited slip differential. When one limited slip differential wheel is suspended while passing through a straight or curved blank track section, the other wheel of the same limited slip differential can achieve continuous and stable movement output without slipping and idling, which means that the other three limited slip differential wheels without suspension can transmit power normally on the straight or curved track without the need to use other supplementary tracks and related components. The overall handling device can be simple in structure, reduce costs, be easy to maintain, and have smooth rotation and operation.

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment is given below with detailed descriptions with accompanying drawings. It is believed that the above-mentioned purpose, structure and features of the present invention can be understood in depth and concretely.

〔Learning〕

60: Differential overhead crane

61: Operational organization

612: Differential wheel

614: Drive unit

6141:Drive motor

62: Car body

70: Track module

71: Main track

711: Track 1

721: First cut slot

73: Second track

74: First supplementary track

75: First switching mechanism

76: Second supplementary track

P1: Overhead crane turning path

P2: Skytrain straight path

[The present invention]

10: Track module

11: Main track

12: Straight track

13: Straight blank track

14: Curved track

15: Arc to blank track segment

16: Direction guide plate

161: Straight edge

162: Arc edge

20: Skytrain

30: Operational organization

31: Limited slip differential

311: Limited slip differential

312: Limited slip differential

32: Limited slip differential

321: Limited slip differential

322: Limited slip differential

40: Car body

51: Direction guide wheel

L1: Skytrain straight path

L2: Overhead crane turning path

[Figure 1] is a schematic top view of one embodiment of the present invention.

[Figure 2] is a three-dimensional schematic diagram of one embodiment of the present invention.

[Figure 3] is a side plan view schematic diagram of one embodiment of the present invention.

[Figure 4] is a schematic plan view of the turning path of the overhead travelling vehicle in one embodiment of the present invention.

[Figure 5] is a schematic plan view of a straight path of an overhead travelling vehicle according to one embodiment of the present invention.

[Figure 6] is a schematic diagram of a directional guide plate guiding straight travel in one embodiment of the present invention.

[Figure 7] is a schematic diagram of the direction guide plate guiding the turning of one embodiment of the present invention.

[Figure 8] is a schematic diagram of the plan view of the application for knowledge application No. 109124616.

The present invention provides a designer of a suspended overhead crane transport device.

In order to enable the review committee to have a deeper understanding and knowledge of the purpose, features and effects of this invention, the implementation method and diagrams are described in detail as follows:

Referring to Figures 1 to 7, the present invention provides a suspended overhead crane transport device, which includes:

A track module 10, the track module 10 includes a main track 11, the main track 11 passes through a bifurcation point to form a straight track 12, a straight blank track section 13, a curved track 14 and an arc blank track section 15; the main track 11 to the straight track 12 is a trolley straight path L1, and the main track 11 to the curved track 14 is a trolley turning path L2;

A crane 20 is movably mounted on the track module 10, and the crane 20 includes: a running mechanism 30, including two sets of limited slip differentials 31, 32, each set of the limited slip differentials 31, 32 extends to both sides to transmit to two limited slip differential wheels 311, 312, 321, 322, and the two limited slip differentials 31, 32 together transmit four limited slip differential wheels 311, 312, 321, 322; and a vehicle body 40, the vehicle body 40 is connected to the running mechanism 30 and suspended under the track module 10; accordingly, the running mechanism 30 of the crane 20 travels to the crane straight path L1 or the crane turning path When the diameter is L2, only one of the limited slip differential wheels 311, 312, 321 or 322 will be suspended on the straight blank track segment 13 or the arc blank track segment 15. The limited slip differential wheels 311, 312, 321 or 322 passing through the curved track 14 can adjust the speed automatically due to the speed difference generated by the limited slip differential 31, 32. When one limited slip differential wheel 311, 312, 321 or 322 is suspended passing through the straight or arc blank track segment 13, 15, the other limited slip differential wheel 311, 312, 321 or 322 of the same limited slip differential 31, 32 is located on the straight or curved track 12, 14 and transmits power normally.

In the suspended overhead crane handling device, a set of directional guide rollers 51 are arranged on the top of the operating mechanism 30, and a directional guide plate 16 is fixedly arranged above the track module 10 at the diverging point, aligned with the height position of the directional guide rollers 51. One side of the directional guide plate 16 is set as a straight line edge 161, and the other side is set as an arc edge 162. 1 can move to the left or right, and can be aligned with the straight edge 161 or the curved edge 162 respectively, so as to guide the operating mechanism 30 to move to the overhead travelling path L1 or the overhead travelling path L2, and its limited slip differential wheels 311, 312, 321, 322 can turn in accordance with the curved edge 162 and the curvature of the curved track 14.

From the above, it can be seen that the suspended overhead crane handling device of the present invention is indeed the first in the industry and meets the novelty requirements of the invention patent, and its comprehensive innovative design meets the advancement requirements of the invention patent. It is equipped with two sets of limited slip differentials to drive four transmission limited slip differential wheels. The limited slip differential wheels passing through the curved track can adjust the speed automatically due to the speed difference generated by the limited slip differential. When the overhead crane passes through the divergence point and goes straight or turns on the path, the limited slip differential wheels will , when one limited slip differential wheel is suspended in the straight or curved blank track section, the other limited slip differential wheel in the same limited slip differential can achieve continuous and stable movement output without slipping and idling, which means that the other three limited slip differential wheels without suspension can transmit power normally on the straight or curved track without the need to use other supplementary tracks and related components. The overall handling device can be simple in structure, reduce costs, be easy to maintain, and have smooth rotation and operation, which meets better industrial utilization.

The foregoing is a specific description of the technical features of the present invention with respect to the preferred embodiments of the present invention; however, persons familiar with this technology may make changes and modifications to the present invention without departing from the spirit and principles of the present invention, and such changes and modifications shall be covered by the scope defined in the following patent application scope.

In summary, the present invention provides a suspended overhead crane transport device, which has indeed achieved all the purposes of the present invention. In addition, the spatial form of its combined structure has not been seen in similar products and has not been disclosed before the application. It has complied with the provisions of the Patent Law, and the application is filed in accordance with the law.

10: Track module

11: Main track

12: Straight track

14: Curved track

16: Direction guide plate

161: Straight edge

162: Arc edge

20: Skytrain

30: Operational organization

31: Limited slip differential

311: Limited slip differential

312: Limited slip differential

32: Limited slip differential

321: Limited slip differential

322: Limited slip differential

40: Car body

51: Direction guide wheel

L1: Skytrain straight path

L2: Overhead crane turning path

Claims (3)

A suspended overhead crane handling device, comprising: A track module, the track module includes a main track, the main track passes through a bifurcation point to form a straight track, a straight blank track section, a curved track and an arc blank track section; the main track toward the straight track is a straight path for a train, and the main track toward the curved track is a turning path for a train; A crane is movably mounted on the track module, and the crane comprises: a running mechanism, comprising two sets of limited slip differentials, each set of the limited slip differentials extending to both sides to drive a limited slip differential wheel, and the two limited slip differentials together drive four limited slip differential wheels; and a vehicle body, the vehicle body is connected to the running mechanism and suspended below the track module; accordingly, the running mechanism of the crane moves to the turning path of the crane When the vehicle passes through the curved track, the limited slip differential wheel can adjust the speed automatically due to the speed difference generated by the limited slip differential. When one of the limited slip differential wheels is suspended while passing through the straight or curved blank track section, the other limited slip differential wheel in the same limited slip differential can achieve continuous and stable movement output without slipping and idling. The other three limited slip differential wheels without suspension are located on the straight or curved track and transmit power normally. As described in claim 1, the top of the operating mechanism may be provided with a set of directional guide rollers, and the top of the track module at the bifurcation point is aligned with the height position of the directional guide rollers, and a directional guide plate is fixedly provided, one side of the directional guide plate is set as a straight edge, and the other side is set as an arc edge, and the directional guide roller can move to the left or right, respectively aligned with the straight edge or the arc edge, so as to guide the operating mechanism to move to the straight path of the overhead crane or the turning path of the overhead crane. As described in claim 2, the suspended overhead crane handling device, wherein the limited slip differential wheel can be turned in accordance with the curved edge and the curved arc of the curved track.

Images