JPH07315541A - Belt conveyor - Google Patents

Abstract

PURPOSE:To facilitate the attachment/detachment without being troubled by an article positioned to the lower part of a lower cover by mounting a first cover to cover the lower surface side from a head pulley side and a second cover to cover the lower surface side from a tail pulley side between a pair of driving frames. CONSTITUTION:Four slide clips 53 are mounted on a bar 51 fixed to driving frames 21 on a head pulley side and a tail pulley side of a belt driving device. Then, the respective slide clips 53 are moved toward a recessed part 22 of the driving flames 21. In this condition, a first cover 39 and a second cover 41 are transversely moved from the head pulley side and the tail pulley side of the belt driving device, and tip parts 40, 42 of the first cover 39 and the second cover 41 are fitted in a recessed groove part 65 of a cover joining member 63. The respective slide clips 53 are fitted into the respective openings provided in a side wall of the first cover 39 and the second cover 41. The respective slide clips 53 are moved toward the center to lock the covers 39, 41. The covers 39, 41 are easily removed in the reverse operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor in which a belt driving device is disposed at a lower portion, and more particularly to an improvement of a cover for covering a side surface and a lower surface of the belt driving device.

[0002]

2. Description of the Related Art Conventionally, as a belt conveyor of this type, a frame having head pulleys and tail pulleys arranged at both ends, a belt driving device arranged at the lower part of the frame, and a belt driving device and the frame are mounted on the belt driving device. It is known to have an endless belt passed over.

The belt drive device is formed in a box shape, and is internally wound around a drive motor, a drive pulley, a take-up pulley, a tension pulley, and a sprocket between the drive motor and the drive pulley. A chain is arranged, and both side surfaces and a lower surface are covered with a cover via screws, screws and the like.

Further, in the belt driving device, the endless belt is stretched around the take-up pulley, the drive pulley and the tension pulley to rotate the endless belt.

However, there is a problem that it is troublesome because the screws, screws and the like must be operated one by one when mounting and removing the cover. Therefore, for example, the actual exploitation Sho 61-108217
In the gazette, side covers are fixed to both ends of the drive unit, a plurality of horizontal joint members are provided between the side covers on both sides, and the lower portion of the drive unit is attached to the side joint member at one end of the side cover. The hook part formed on one end of the lower cover to be covered is rotatably hooked, and a locking body having a locking part is provided on the other horizontal joint material so as to be movable in the longitudinal direction of the horizontal joint rod. The lower cover is provided with a through hole through which the body is inserted, and the lower cover is rotated to insert the locking body into the through hole. Disclosed is a cover device for a drive part of a conveyor, which locks an edge portion of a through hole of a lower cover.

According to this cover device, FIG. 18 and FIG.
As shown in FIG. 9, the hook portion 2 of the lower cover 1 is rotatably hooked on the lateral joint member 3 to open and close the lower cover 1, and the lower cover 1 is closed to engage the through hole 4 with the locking body. 5, the lower cover 1 is fixed by moving the locking body 5 along the horizontal joint member 3 and locking the edge of the through hole 4 with the locking portion of the locking piece 6. You can

[0007]

However, according to this cover device, when the lower cover 1 is opened at the time of checking, repairing and adjusting the drive unit, the lower cover 1 is centered around the hook 2 as shown in FIG. Since the object rotates, if there is an obstacle in this area, the function cannot be exerted.

Therefore, it is not possible to place equipments and the like on the lower surface side of the drive unit, which makes it difficult to store accessory parts and the like. Further, when the belt conveyor is attached to the legs, the legs prevent the lower cover 1 from rotating, and the lower cover 1 cannot be opened.

Further, when the belt conveyor is placed directly on a table or a work table, it cannot be used for the same reason. The present invention has been made to solve such conventional problems, and an object thereof is to provide a belt conveyor that can be easily attached and detached without being bothered by articles located below a lower cover. is there.

[0010]

According to a first aspect of the present invention, there is provided a frame in which a head pulley and a tail pulley are arranged at both ends, a belt driving device arranged below the frame, and the belt driving device and the frame. The belt drive device has a box shape, and has a drive motor, a drive pulley, a take-up pulley, a tension pulley, and a sprocket between the drive motor and the drive pulley. In a belt conveyor having a chain that is hung over via a cover and a cover that covers both side surfaces and a lower surface, and an endless belt is hung over a take-up pulley, a drive pulley, and a tension pulley, the belt drive device is A pair of drive frames of approximately rectangular shape,
Drive motor, drive pulley, take-up pulley,
A tension pulley, a chain that is stretched between a drive motor and a drive pulley via a sprocket, side covers that are attached to a pair of drive frames and cover both side surfaces, and a head pulley that is attached between a pair of drive frames. The first cover covers the lower surface side, and the second cover is mounted between the pair of drive frames and covers the lower surface side from the tail pulley side.

According to a second aspect of the present invention, the first cover and the second cover are locked to the belt driving device via a cover locking mechanism. According to a third aspect of the present invention, the cover locking mechanism includes a lock mechanism provided on the head pulley side and the tail pulley side of the belt driving device, and a first cover and a second cover arranged on the lower surface side of the belt driving device. And a cover joint member that holds the front end portion of the lower surface of the.

According to a fourth aspect of the present invention, the lock mechanism includes a bar arranged on the head pulley side and the tail pulley side of the belt driving device, and two slide clips slidably arranged on the bar. The slide clip is fitted into the openings provided in the first cover and the second cover, respectively, and is moved along the wall surfaces of the first cover and the second cover to be locked.

According to a fifth aspect of the present invention, the openings provided in the first cover and the second cover have substantially the same shape as the outer shape of the slide clip, and the constricted portion of the slide clip is locked to the bottom side of the opening. It has a fixed part to do.

According to a sixth aspect of the present invention, the pair of drive frames project outward from the first cover and the second cover. According to the invention of claim 7, the tips of the legs for erecting the belt conveyor are attached to the pair of drive frames.

According to the eighth aspect of the present invention, the side surface cover that covers the side surface side is provided with an oil supply port in a part of the running region of the chain.

[0016]

According to the first aspect of the invention, the first cover and the second cover can be laterally pulled individually from the head pulley side and the tail pulley side of the belt drive device.

According to the second aspect of the present invention, the first cover and the second cover can be locked to the belt driving device via the cover locking mechanism. In the invention of claim 3, the first cover and the second cover are locked on the frame side by a lock mechanism provided on the head pulley side and the tail pulley side of the belt drive device, and on the lower surface side of the belt drive device. The front end portions of the first cover and the second cover on the lower surface side are held by the cover joint member.

According to the fourth and fifth aspects of the present invention, when the first cover and the second cover are assembled, the slide clips mounted on the bar are pushed toward the respective drive frames to open the first cover and the second cover. So that it fits into the slide clip. Next, the first cover and the second cover are pushed in the respective bar directions, the openings of the first cover and the second cover are fitted with the slide clip, and the operation portion of the slide clip is the wall surface of the first cover and the second cover. At the more protruding position, each slide clip is moved toward the center, and the slide clip locks the first cover and the second cover.

Further, since the slide clip is slidably fitted to the bar via the substantially C-shaped slide connecting portion, it is self-weighted when it is not fixed to the first cover and the second cover. Since the operating piece is easy to rotate downward,
The rotation can be prevented by pressing and fixing it on the drive frame.

According to the sixth aspect of the present invention, since the pair of drive frames protrudes outward from the first cover and the second cover, the belt drive device can be used for the work table, the table, etc. via the pair of drive frames. The first cover and the second cover can be attached and detached.

According to the seventh aspect of the present invention, since the tips of the legs that erect the belt conveyor are attached to the pair of drive frames, the first cover and the second cover can be attached and removed without removing the legs. You can go outside.

According to the eighth aspect of the present invention, the side face cover covering the side face side is provided with the oil supply port in a part of the running region of the chain.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 show an embodiment of a belt conveyor according to claims 1 to 6.

In the figure, reference numeral 10 represents a pair of frames having a head pulley (not shown) and a tail pulley (not shown) at both ends. This frame is usually made of aluminum drawing material.

At the bottom of the frame 10, a fixing metal fitting 1
7. A belt drive device 20 is arranged by means of bolts and nuts 19. Reference numeral 11 denotes an endless belt for conveyance, which is stretched around the belt drive device 20 and the frame 10.

The endless belt 11 is a belt driving device 2
0, take-up pulley 27 and drive pulley 2
5 and tension pulley 29, and is rotated by drive motor 23.

The belt drive device 20 is a pair of drive frames 2 formed of a metal material such as aluminum and having a substantially rectangular shape.
1, the drive motor 23, the drive pulley 25, the take-up pulley 27, the tension pulley 29, and the sprockets 31, 3 between the drive motor 23 and the drive pulley 25.
3 and a side cover 37 attached to the pair of drive frames 21 and covering both side surfaces.
A first cover 39 mounted between the pair of drive frames 21 and covering the head pulley side to the lower surface side, and a second cover 41 mounted between the pair of drive frames 21 and covering the tail pulley side to the lower surface side. There is.

As shown in FIG. 4, the pair of drive frames 21 includes a first cover 39 attached to the belt drive device 20.
And, it projects further outward than the second cover 41. Therefore, a gap G is formed between the bottom surface of the drive frame 21 and the bottom surfaces of the first cover 39 and the second cover 41.

As shown in FIG. 5, the first cover 39 and the second cover 41 are substantially L-shaped, and the openings 43 are substantially U-shaped on both sides of the side surface facing the head pulley side or the tail pulley side. Is provided. The opening 43 has a shape substantially similar to the outer shape of the slide clip 53 described later, and a groove-like fixing portion 45 for locking the constricted portion 60 of the slide clip 53 is provided on the bottom portion.

The cover locking mechanism 47 is used for the belt driving device 2.
The lock mechanism 49 provided on the head pulley side and the tail pulley side of No. 0, and the lower end side portions 40 and 42 of the first cover 39 and the second cover 41 disposed on the lower surface side of the belt drive device 20 are held. Cover cover member 63.

The lock mechanism 49 includes a bar 51 arranged between the drive frames 21 on the head pulley side and the tail pulley side of the belt driving device 20, and two slide clips 53 slidably arranged on the bar 51. It is configured.

The slide clip 53 is molded of plastic such as polypropylene and, as shown in FIGS. 6 to 8, is fixed to the recess 22 of the drive frame 21 with a fixing member 52 such as a screw.
A substantially C-shaped sliding connecting portion 55 slidably fitted to the bar 51 fixed via the concave groove portion 57 fitted into the openings 43 provided in the first cover 39 and the second cover 41, respectively. , 59, and a constricted portion 60 formed between the concave groove portions 57, 59 and locked to the fixing portion 45 of the first cover 39 and the second cover 41, and protruding toward the first cover 39 and the second cover 41 side and sliding. It is composed of an operating piece 61 which forms a portion for operating the clip 53.

Since the slide clip 53 is slidably fitted to the bar 51 via the substantially C-shaped slide connecting portion 55, it is not fixed to the first cover 39 and the second cover 41. The operating piece 61 is easily rotated downward by its own weight, and in order to prevent this, as shown in FIG. 10, the operating piece 61 is pressed and fixed to the drive frame 21. As a result, the slide clip 53 is prevented from rotating, and it is possible to save the trouble of positioning the slide clip 53 at the proper position when the first cover 39 and the second cover 41 are assembled.

The cover joint member 63 is formed of a metal material such as aluminum, has a cross section of approximately Ω as shown in FIG. 9, and has a first cover 39 and a second cover 41 on both sides.
The concave groove portion 65 into which the front end portions 40 and 42 are fitted, and the mounting portion 67 in which a female screw is provided on the inner wall for screwing to the drive frame 21.

Next, the operation of this embodiment will be described. Figure 10
As shown in FIG. 1, the bar 51 fixed to the drive frame 21 on the head pulley side and the tail pulley side of the belt driving device 20.
Attach the four slide clips 53 to.

Next, each slide clip 53 is moved toward the recess 22 of the drive frame 21 (in the direction in which they are separated). In this state, as shown in FIG. 11, the first cover 39 and the second cover 41 are laterally moved from the head pulley side and the tail pulley side of the belt drive device 20 to move the first cover 3
9 and the tip portions 40 and 42 of the second cover 41 are fitted into the concave groove portions 65 of the cover joint member 63.

At this time, as shown in FIG. 12, the slide clips 53 are fitted into the openings 43 provided in the side walls of the first cover 39 and the second cover 41. Next, as shown in FIG. 13, each slide clip 53 is moved in the center direction (direction in which both approaches), and the constricted portion 6 of each slide clip 53 is moved.
By locking 0 in the fixed portion 45 of the first cover 39 and the second cover 41, the first cover 39 and the second cover 41 are locked by the respective slide clips 53.

Thus, as shown in FIG. 14, the assembling of the first cover 39 and the second cover 41 is completed. The first cover 39 and the second cover 41 can be easily removed by performing the reverse operation to the above.

As described above, according to this embodiment, the first cover 39 and the second cover 41 are moved to the head pulley side and the tail pulley side of the belt drive device 20, and the engagement between the cover joint member 63 and the slide clip 53 is performed. By stopping
Easy to assemble.

Further, the belt driving device 20 includes two bars 5
Since 1 and the cover joint member 63 are passed over the pair of drive frames 21, a strong box shape is formed.
Further, as shown in FIG. 4, the pair of drive frames 21 are
Since it projects outward from the bottom surfaces of the assembled first cover 39 and second cover 41, the pair of drive frames 2
1 functions as a leg, and the belt drive device 20 can be directly placed on, for example, a table or a workbench.

When removing the assembled first cover 39 and second cover 41 for inspection, repair, adjustment, etc. of the belt drive device 20, the lock by the slide clip 53 is released in this state, The first cover 39 and the second cover 41 may be pulled in the direction away from the drive frame 21.

That is, unlike the conventional example shown in FIG. 18, since the cover does not rotate, the table, workbench, etc. do not get in the way and can be easily removed. Of course, after inspection, repair, adjustment, etc. of the belt drive device 20, the first cover 39 is in this state in accordance with the procedure shown in FIGS.
Also, the second cover 41 can be easily assembled.

Further, since the front end portions 40 and 42 of the first cover 39 and the second cover 41 are fitted in the concave groove portion 65 of the cover joint member 63, the first cover 39 and the second cover 41.
Does not fall.

15 and 16 show an embodiment of the belt conveyor according to the present invention. In this embodiment, legs 69 are attached to the lower surface of the belt drive device 20 to erect the belt conveyor.

A head pulley 13 and a tail pulley 15 are shown on the frame 10. Although omitted in the above embodiment, the head pulley 13 and the tail pulley 15 are naturally attached to the frame 10 in the belt conveyors of FIGS. 1 and 2 as well.

As shown in FIGS. 15 and 16, the upper ends of the legs 69 are attached to the lower portions of the pair of drive frames 21 by the assembly member 7.
1 is attached via fixing members such as bolts and nuts.

A well-known supporting member 73 is attached to the lower ends of the legs 69 so that it can be installed on the floor or the like. According to this embodiment, as described with reference to FIG. 4, the gap G is formed between the bottoms of the pair of drive frames 21 and the bottoms of the first cover 39 and the second cover 41. The first cover 39 and the second cover 41 can be attached / detached with the legs 69 attached to the lower surface.

That is, since the cover does not rotate unlike the conventional example shown in FIG. 18, the legs 69 do not get in the way and can be easily removed. In the conventional example shown in FIG. 18,
The legs 69 had to be removed when installing or removing the cover.

FIG. 17 shows an embodiment of the belt conveyor according to claim 8. In this embodiment, the side face cover 37 covering the side face side is provided with the fuel filler port 7 corresponding to the traveling region of the chain 35.
5 is provided.

According to this embodiment, it is possible to lubricate the chain 35 without removing the side cover 37. Reference numeral 77 is a window hole for confirming the amount of movement of the take-up pulley 27, which is graduated.

This is because the belt 11 stretches with use,
This is convenient for checking the amount of movement when the belt is tensioned.

[0052]

As described above, according to the first aspect, the first cover and the second cover can be separately pulled laterally from the head pulley side and the tail pulley side of the belt driving device, so that the cover is attached.・ Easy to remove.

According to the second aspect, since the first cover and the second cover can be locked to the belt driving device via the cover locking mechanism, they can be easily attached / removed without using a tool or the like. You can

According to the third aspect, the first cover and the second cover are locked on the frame side by the lock mechanism provided on the head pulley side and the tail pulley side of the belt driving device, and the lower surface side of the belt driving device is locked. In the above, since the front end portions on the lower surface side of the first cover and the second cover are held by the cover joint member, the assembly of the first cover and the second cover is reliable and safe.

Further, the belt driving device itself becomes a strong structure by the lock mechanism and the cover joint member. Furthermore,
Since the front end portions of the lower surfaces of the first cover and the second cover are held by the cover joint member, the first cover and the second cover do not drop.

According to the fourth and fifth aspects, when the first cover and the second cover are assembled, the slide clip attached to the bar is pushed outward so that the openings of the first cover and the second cover are slide clips. So that they fit together. next,
The first cover and the second cover are pushed into the belt driving device respectively, and when the first cover and the second cover can be set at the predetermined positions, the respective slide clips are moved inward, and the slide clips are moved. Since the first cover and the second cover can be locked with each other, the first cover and the second cover can be firmly assembled.

Further, since the slide clip is slidably fitted to the bar via the substantially C-shaped slide connecting portion, when it is not fixed to the first cover and the second cover, it is self-weighted. It is easy for the operating piece to rotate downward, but by pressing and fixing it on the drive frame, it is prevented from rotating, and it takes time to set the slide clip to the proper position when assembling the first cover and the second cover. Can be omitted.

According to the sixth aspect, since the gap is formed between the drive frames by the pair of drive frames, and the first cover and the second cover can be easily pulled laterally, the mounting of the first cover and the second cover can be easily performed. There is no need to move or remove other parts or articles as in the conventional case when detaching.

According to the seventh aspect, since the tips of the legs for raising the belt conveyor are attached to the pair of drive frames, the first cover and the second cover can be easily pulled laterally with the legs attached. .

According to the eighth aspect, the chain can be refueled with the cover for covering the side surface attached.

[Brief description of drawings]

FIG. 1 is a perspective view showing a notched essential part of an embodiment of a belt conveyor according to claims 1 to 6. FIG.

FIG. 2 is a perspective view showing an embodiment of a belt conveyor according to claims 1 to 6.

FIG. 3 is a front view showing a main part of an embodiment of the belt conveyor according to claims 1 to 6.

FIG. 4 is a front view showing an assembled state of the drive frame and the first cover in FIG.

5 is a perspective view showing a first cover and a second cover in FIG. 1. FIG.

6 is a side view showing the slide clip in FIG. 1. FIG.

FIG. 7 is a cross-sectional view showing a mounted state of the slide clip in FIG.

FIG. 8 is a vertical cross-sectional view showing a mounted state of the slide clip in FIG.

9 is a perspective view showing a cover joint member in FIG. 1. FIG.

10 is a transverse cross-sectional view showing a mounted state of the slide clip in FIG.

11 is an explanatory diagram showing a mounting state of a first cover and a second cover in FIG. 1. FIG.

FIG. 12 is a front view showing an assembled state of the first cover and the second cover in FIG. 1 and the drive frame.

13 is a front view showing a locked state of the first cover and the second cover by the slide clip in FIG.

FIG. 14 is an explanatory view seen from the side surface side of FIG.

FIG. 15 is a side view showing an embodiment of the belt conveyor according to claim 7;

16 is a front view showing an assembled state of the drive frame, the first cover, and the assembly member in FIG.

FIG. 17 is a side view showing an embodiment of the belt conveyor according to claim 8;

FIG. 18 is an explanatory view showing a mounted state of a cover of a conventional belt conveyor.

19 is a cross-sectional view showing an assembled state of the cover in FIG.

[Explanation of symbols]

10 frame 11 endless belt 20 belt drive device 21 drive frame 39 first cover 40, 42 tip ends of the first cover 39 and the second cover 41 41 second cover 43 opening 45 fixing part 47 cover locking mechanism 49 locking mechanism 52 bar 53 slide clip 55 substantially C-shaped sliding connection portion 57, 59 concave groove portion 60 constricted portion 61 actuating piece 63 cover joint member 65 concave groove portion 67 mounting portion

Claims (8)

[Claims] 1. A frame comprising a head pulley and a tail pulley arranged at both ends thereof, a belt driving device arranged at a lower portion of the frame, and an endless belt stretched between the belt driving device and the frame. , The belt drive device has a box shape, the drive motor, the drive pulley,
It has a take-up pulley, a tension pulley, a chain that is stretched between the drive motor and the drive pulley via a sprocket, and covers that cover both side surfaces and the bottom surface, and an endless belt drives the take-up pulley. In a belt conveyor that is stretched around a pulley and a tension pulley, the belt drive device includes a pair of drive frames having a substantially rectangular shape, a drive motor, a drive pulley, a take-up pulley, a tension pulley, and a drive motor. A chain that spans the drive pulley via a sprocket, side covers that are attached to the pair of drive frames and cover both side surfaces, and a first cover that is attached between the pair of drive frames and covers the head pulley side and the lower surface side. And a second cover that is mounted between the pair of drive frames and covers the bottom side from the tail pulley side. A belt conveyor characterized by being composed of and. 2. The belt conveyor according to claim 1, wherein the first cover and the second cover are locked to the belt driving device via a cover locking mechanism. 3. The cover locking mechanism includes a lock mechanism provided on the head pulley side and the tail pulley side of the belt driving device, and a lower surface of each of the first cover and the second cover arranged on the lower surface side of the belt driving device. The belt conveyor according to claim 2, wherein the belt conveyor is configured to include a cover joint member that holds a front end portion on the side. 4. The lock mechanism includes a bar arranged on the head pulley side and the tail pulley side of the belt driving device, and two slide clips slidably arranged on the bar, and the first cover and the second cover. 4. The belt conveyor according to claim 3, wherein a slide clip is fitted in an opening provided in each of the covers and is locked by moving along a wall surface of the first cover and the second cover. 5. The openings provided in the first cover and the second cover have substantially the same shape as the outer shape of the slide clip, and have a fixing portion for locking the constricted portion of the slide clip on the bottom side of the opening. 5. The method according to claim 4, wherein
Belt conveyor as described. 6. The belt conveyor according to claim 1, wherein the pair of drive frames project outward from the first cover and the second cover. 7. The belt conveyor according to claim 2, wherein the tips of the legs for raising the belt conveyor are attached to the pair of drive frames. 8. The belt conveyor according to claim 1, wherein the side surface cover covering the side surface side is provided with an oil supply port in a part of a running area of the chain.