JPS616063A - Conveyor utilizing electric travelling truck - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a transport device using an electric traveling trolley, which is mainly used as a means of transporting cargo in factories, warehouses, etc.

(Prior art) Conventional conveyance devices using electric traveling carts, especially conveying devices equipped with rail covers that cover guide rails that guide the electric traveling carts, power supply rails, etc., are constructed on the floor along the conveyance route. A guide rail part is formed inside the left and right sides of the rail cover, which has a gate-shaped cross section, and the electric traveling vehicle is equipped with wheels that roll on this guide rail part, a driving means including an electric motor, a current collecting means, etc. Each of the means covered by the cover was configured to move within the space covered by the cover.

(Problems to be Solved by the Invention) In the conventional conveying device as described above, the entire weight of the electric traveling trolley and the load acting on the guide rail is received by the rail cover and the rail cover support at the center of the rail cover. Therefore, the rail cover and the rail cover support must have sufficient strength, and therefore the rail cover and the rail cover support become heavy objects, compared to a transport device not equipped with such a rail cover. A significant increase in costs cannot be avoided. In other words, it was unsuitable as a conveyance device for conveying heavy objects.

In addition, since the rail cover also serves as a support means for the guide rail, it is not possible to remove only the rail cover at an arbitrary position and perform maintenance on the guide rail, power supply rail, or electric vehicle at the location where the rail cover is removed. However, there were also problems such as the cross-sectional shape of the guide rail that supported the electric vehicle was limited.

(Means for Solving the Problems) The present invention has been made to solve the problems of the prior art as described above. A rail cover with a gate-shaped cross section that covers the upper space between the pair of left and right guide rails is installed at an intermediate position between the supported pair of left and right guide rails and the electric traveling trolley that runs on the guide rails. A wheel rolling on the guide rail, a driving means including an electric motor, and a current collecting means, which are disposed in a state where they are supported by rail cover columns erected on the floor between the rails, and are equipped on the electric traveling trolley. The fixed-side power supply rail with which the current collecting means slides is disposed within the space covered by the rail cover.

(Embodiment) An embodiment of the present invention will be described below based on the attached illustrative drawings. Reference numeral 1a and 1b are a pair of left and right guide rails laid along the conveyance path, with appropriate intervals in the length direction. It is supported on the floor via a rail support member 2 placed on the floor. Reference numeral 3 designates a rail cover support column erected on the rail support member 2 between both guide rails 1a and 1b.

These guide rails la, 1b and rail cover support 3
can also be directly fixed to the floor without using the rail support member 2. 4 is a rail cover with a gate-shaped cross section,
The lower ends 4a and 4b of both left and right sides are the guide rails l.
They face diagonally outwardly from the rails a and 1b with an appropriate gap between them, and are supported by the rail cover support column 3 at the center inner side thereof. This rail cover 4 can be made into a continuous rail cover 4 in the length direction by removably attaching one cover unit of an appropriate length to each pair 17 of the rail cover columns 3. In this case, the rail cover 4 can be removed at any position on the conveyance path and over any length. Reference numeral 5 denotes a power supply rail fixedly installed on the side surface of the rail cover support column 3. Reference numeral 6 denotes a rank gear, which is fixed laterally to the side of the rail cover column 3 at a position below the power supply rail 5 and on the same side as the power supply rule 5.

Reference numeral 7 denotes an electric traveling trolley, which includes a loading platform 8 located directly above the rail cover 4, and a pair of left and right guide rails 1a, +b.
A supporting horizontal axis wheel 9 that moves above, a pair of vertical axis rollers 10 for positioning that sandwich one guide rail 1b from both left and right sides, a current collecting means 11 that slides in contact with the power supply rail 5, and a drive that engages with the rank gear 6. It includes a pinion gear 12 and an electric motor 14 that drives the pinion gear 12 via a reduction transmission device 13.

The wheels 9 are connected to each bracket downward from the four corners of the loading platform 8, and the free ends of the wheels 9 enter the inside of the rail cover 4 between the lower ends 4a, 4b of both left and right sides of the rail cover 4 and the guide rails la, lb. 15, respectively. The vertical shaft roller 10 for positioning is mounted on the loading platform 8.
The front and rear brackets 15 are respectively pivotally supported by the free ends of the two brackets 15 located on one side of the bracket. Like the bracket 15, the current collecting means 11 and the deceleration transmission device 13 are also connected to the loading platform 8, and have free ends between the lower ends 4a, 4b of both left and right sides of the rail cover 4 and the guide rails 1a, 1b. Bracket 16.17 that goes inside the rail cover 4 from
The electric motor 14 is supported by a reduction transmission 13. Therefore, the pinion gear 1
2, an electric traveling trolley 7 including a drive means 18 consisting of a reduction gearing device 13 and an electric motor 14, wheels 9, a current collecting means 11, etc.
Those installed on the side are located in a space 19 covered by the rail cover 4, and the power supply rail 5 and rack gear 6 on the fixed side are also located in the space 19. Note that the positioning vertical shaft roller 10 is located directly below the space 19.

In the transport device configured as described above, the electric traveling trolley 7
The electric motor 14 is driven by electric power and control signals supplied from the power supply rail 5 via the current collecting means 11, and the rotational force of the electric motor 14 rotates the pinion gear 12, thereby moving the electric traveling cart 7 along the guide rail. It can be run in any direction on la and lb, and cargo can be transported using the loading platform 8. In this running state of the electric traveling trolley 7, the driving means 18, wheels 9, current collecting means 11, etc. located in the space 19 covered by the rail cover 4 move within the space 19. .

In addition, in the embodiment, as the driving means 18 including the electric motor 14,
Although the pinion gear 12 meshing with the rank gear 6 on the fixed side is used, a drive means in which one of the supporting horizontal shaft wheels 9 or a separately supported drive wheel is rotated by the electric motor 14 may be used. Furthermore, although a pair of left and right vertical axis rollers 1o are provided at the front and rear, it is also possible to use a pair of left and right vertical axis rollers that contact the inside or outside of the pair of left and right guide rails 1a, lb. be. Of course, it is also possible to omit the above-mentioned vertical shaft roller for positioning by employing a structure in which at least one of the guide rails la, lb and the supporting horizontal shaft wheel 9 supported by the guide rails are fitted into each other.

The pair of left and right guide rails la and lb were constructed using two independent rail members, but guide rail portions were formed on both left and right sides of one wide rail member, respectively, to form the pair of left and right guide rails. It is also possible to configure 1a and 1b integrally. In this way, the guide rails la and lb can be installed easily and accurately. Further, the guide rails 1a, lb are attached to the rail cover columns 3 which are erected on the floor as shown in FIG.
It is also possible to support it via a, 20b or 21a, 20b. In FIG. 3, the guide rails +a and lb are supported using the rail cover support 3, but a separate support support for the rails may be provided.

(Operations and Effects of the Invention) According to the conveyance device of the present invention as in the above embodiment, when using the fixed side guide rail, power supply rail, rank gear, etc., the rail cover not only protects the rack gear, etc. It also protects the driving means including the electric motor on the electric traveling vehicle side, the current collecting means, the wheels rolling on the guide rails, etc. Therefore, it is possible to not only prevent foreign objects from getting caught, oil, water, etc. to enter, and conversely, prevent dust generated inside the cart from scattering to the outside, but also prevent workers who work close to the conveyance route from using the wheels. It also prevents the machine from getting caught in gears, gears, etc., greatly improving safety.

Moreover, the greatest effect of the present invention is that the guide rail that supports the electric traveling trolley is a floor-standing type independent of the rail cover, so it can be of any cross-sectional shape and has the required strength and rigidity. It can be easily increased depending on the situation.

On the other hand, since the weight and load of the electric traveling trolley do not act on the rail cover, the rail cover can be constructed from FJL J5, and the rail cover supports only need to be strong enough to support the rail cover. , rail cover-related costs can be significantly reduced compared to conventional methods.

Furthermore, it is also possible to remove only the rail cover, regardless of the guide rail that supports the electric traveling bogie, and maintenance of the guide rail and electric traveling bogie can be easily performed at the location where the rail cover is removed, as well as allowing electric traveling to be performed at the location where the rail cover is removed. Line-off of the trolley can also be made possible.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view, FIG. 2 is a partially cutaway side view, and FIG. 3 is a longitudinal sectional front view showing another embodiment.

Claims (1)

[Claims] A cross-sectional gate that covers the upper space between the pair of left and right guide rails is located at an intermediate position between a pair of left and right guide rails supported by pillars laid on the floor or erected on the floor and an electric traveling trolley that runs on these guide rails. a rail cover of the shape of a shape is disposed in a state where it is supported by a rail cover post erected on the floor between the pair of left and right guide rails, and wheels rolling on the guide rails are installed on the electric traveling trolley; A driving means including an electric motor, a current collecting means, and a fixed power supply rail with which the current collecting means slides are arranged in a space covered by the rail cover.