KR101184187B1 - A sprocket dischargeable foreign substance - Google Patents

Abstract

The present invention relates to a sprocket capable of discharging foreign matter.
The present invention forms a foreign substance discharge groove and a circumferential foreign substance discharge groove having a dimension smaller than the roller outer diameter of the chain in the direction of the axial center of the sprocket at the center of the contact surface where the sprocket and the chain roller contact, so that the roller of the chain is connected to the roller of the sprocket. When the foreign matter naturally flows out so that no sticking foreign matter occurs, the roller of the chain is correctly connected to the contact surface of the sprocket provides a sprocket that can be smoothly driven.

Description

Sprocket dischargeable foreign substance {A sprocket dischargeable foreign substance}

The present invention is a chain power transmission device that can transmit power by a chain (chain) and sprocket (sprocket), in particular, it is possible to unload the load of the crushed state loaded in the grain loading box of the lorry using a chain conveyor To an improved sprocket applied to a chain power transmission device. Specifically, in the process of driving the sprocket of the chain conveyor provided to discharge the load from the bottom of the loading tray configured to unload the load, such as grain, grain, wood flour, sawdust, planer rice or dust of the dust collector When the chain and the sprocket is connected, the foreign matter flowing between the roller roller and the rolling contact surface of the sprocket is automatically discharged to the sprocket capable of discharging the foreign matter that the sprocket can run smoothly.

An example of the structure of the cargo box of a freight vehicle related to the present invention can be found in Patent No. 10-0829178, "Loader of a freight vehicle having an air mixing and discharging device," which is registered by the applicant. Loading box structure has been proposed variously.

1 shows a structure of a freight car and a loading box as described above. In the loading box 2 structure of the lorry 1 which carries the pulverized product as referred to in this figure, the load 4 loaded in the loading box 2 is provided with a plurality of screws 3 installed at the bottom of the loading box 2. ) Can be discharged out of the rear of the loading box (2).

This type of screw is very efficient because only the load that comes into contact with the screw is discharged and the load that is not in contact with the screw cannot be transported. Therefore, the operator needs to manually push the load toward the screw using a tool such as a shovel. Low

Therefore, installing a conveyor system at the bottom of the stacker to correspond to the floor area of most stackers is more efficient and can quickly drain loads.

FIG. 2 is a loading box structure of a freight vehicle to which such a conveyor system is applied, and FIG. 3 shows a sprocket having a general structure in a chain power transmission device.

As shown in the accompanying drawings, the loading box 2a of the lorry 1a to which the conveyor system is applied is provided with a flat belt 5 of a conveyor at an inner bottom, and a chain 6 for driving the flat belt 5. And a chain transmission consisting of a sprocket 7 is installed on both sides of the loading box.

The loading box 2a of this conveyor system is configured by the flat belt 5 at the bottom of the loading box 2a so that the load 4 can be discharged without the need for manual labor of the operator. The moving grain or crushed load is pushed into the contact surface 8 driven by the chain 6 and the sprocket 7.

In general, the chain conveyor has a structure in which the chain 6 and the sprocket 7 are driven by the load 4, and the roller constituting the chain is driven by the sprocket during the conveyor operation. Since the chain is driven according to the rotation direction of the sprocket, the load 4 is moved by the interference band formed in the chain.

Thus, when the roller 9 of the chain 6 is connected with the sprocket 7, the inflow of a load is accompanied by the contact surface part of the roller 9 and the sprocket 7, and it is the state of the grain or grind | pulverized as mentioned above. When the load (4) of the intervening in the power transmission unit as foreign matter, the sprocket (7) and the chain roller (9) is pressed into the contact surface (8) contact with the solidified by the fixed foreign matter (10) to contact the sprocket (7) Since the roller 9 cannot maintain a constant center-to-center distance, chain driving becomes impossible.

Conventionally, in the power transmission device for driving a chain in which foreign substances are introduced, foreign substances are introduced when the rollers of the chain are connected to the sprockets, and foreign substances are compressed and solidified on the contact surface of the sprockets and the chain rollers. Stuck.

The foreign matter that is compressed and solidified is fixed to a very solid solid so that the roller of the chain does not contact the roller of the sprocket and cannot transmit power, so that chain operation is impossible. Because of the frequent cleaning, there is a problem that the productivity is reduced due to frequent cleaning, and the sprockets need to be replaced at all, resulting in excessive maintenance costs.

Of course, if the cover is formed on the chain and the sprocket, foreign substances can be prevented from entering, but it is not possible to completely block the inflow of dust, which is generated even after the crushed products including grains are discharged. Creating a structure that does not make it practical because it raises manufacturing costs.

For this reason, although the belt conveyor method is excellent in the efficiency of discharging the load in the freight car unloading the crushed load, there was a problem that can not be applied.

The present invention is to solve the problems as described above, by providing an improved sprocket that enables the use of a roller-type chain that was previously impossible to solve the inconveniences as in the prior art and to improve the productivity.

The present invention forms a space in which a foreign material can be discharged from the contact surface of the sprocket to discharge the load flowing when the roller of the chain is connected to the sprocket in the process of transmitting power using a roller type chain and the sprocket. Therefore, when the roller of the chain is connected to the roller of the sprocket, foreign matter flows out naturally, so that there is no seizure foreign matter. Therefore, the roller of the chain is always correctly connected to the contact surface of the sprocket to provide a chain sprocket which can be driven smoothly. do.

Technical features for achieving the intended purpose of the present invention is that foreign matter of a somewhat smaller dimension than the roller outer diameter of the chain in the direction of the axial center of the sprocket from the contact surface center of the sprocket which the chain roller contacts in order to continuously outflow foreign matter The discharge groove is formed to have a continuous space to the shaft insertion hole so that the roller of the chain is always in contact with the contact surface of the sprocket so that foreign matter flows naturally.

Another technical feature to achieve the object of the present invention is that the chain roller has a dimension slightly smaller than the outer diameter of the chain in the direction of the axial center of the sprocket from the center of the contact surface of the sprocket to which the chain roller contacts in order to continuously discharge foreign matter. The foreign material discharge groove is formed to have a continuous space to the shaft insertion hole so that the roller roller contacts the contact surface of the sprocket to allow the foreign material to flow out naturally. It is to reduce the amount and more effectively to allow foreign substances to flow out.

According to the sprocket having such a structure, a space having a smaller dimension than the roller outer diameter of the chain is formed from the center of the sprocket contact surface to the center of the sprocket, so that foreign matter flowing into the upper part of the sprocket is downward along the radial foreign matter discharge groove formed in the sprocket. As it descends to the shaft insertion hole without being compressed and blocked in the middle, the foreign matter does not intervene between the contact surface between the sprocket and the chain roller.

Thus, when the roller of the chain is connected to the roller of the sprocket, even if the load is continuously introduced, the automatic outflow is removed through the space part, so that the roller of the chain is correctly connected to the contact surface of the sprocket, and a substantial portion of the recess is provided on both sides of the sprocket. The outflow of the conveyed material can be facilitated to perform the sprocket's original function.

According to the present invention, since the power transmission is smoothly performed in the product-type load, the roller-type chain can be used in the conveyor for transporting the product-type load, so that the load conveyor can be installed as wide as the bottom of the loading box. It can be discharged without congestion, and the bottom of the loading box can be configured in a flat shape, which eliminates the need to form a lower slope, thereby simplifying the device, and the height of the loading box can be relatively low. The effect on use as a transportation means can be maximized.

In addition, the time required for repair and replacement due to the adhesion of foreign matters is saved so that workability is not degraded or maintenance costs are not wasted.

1 is a view showing a conventional screw drive lorry.
(A) Front view
(B) side view
2 is a view showing a load car of the belt conveyor drive system,
3 is a view showing a sprocket having a conventional general structure,
(A) Front view
(B) side view
Figure 4 is a front view showing a state of contact between the conventional sprocket and the chain
5 is a view showing a sprocket of the present invention,
(A) perspective view
(B) section
Figure 6 is a front view showing a contact state of the sprocket and the chain of the present invention
7 is a view showing another embodiment of the present invention,
(A) perspective view
(B) section
8 is a cross-sectional view showing an operating state of another embodiment of the present invention.

The features and advantages of the present invention will become more apparent from the embodiments described by the accompanying drawings.

Hereinafter, embodiments of the present invention will be described.

3 is a perspective view and a cross-sectional view of the sprocket showing the embodiment of the present foot.

Referring to this figure, the sprocket 100 of the present invention has a radial foreign matter discharge groove 101 is formed toward the axis center of the shaft 300 from the center of the contact surface of the roller 201 of the chain 200 have.

The foreign substance discharge groove 101 has a dimension slightly smaller than the outer diameter of the roller 201 of the chain 200 in the axial center direction of the sprocket 100 at the center of the contact surface 102 that the roller 201 of the chain 200 contacts. Formed to form a continuous space up to the shaft insertion hole 301 is formed a plurality.

The radial foreign matter discharge groove 101 may be formed in all the valleys (contact surface formed at the site forming the valley diameter so that the chain roller is in contact) of the sprocket 100, but may be formed in a cycle of skipping one valley. have.

This is because the chain rollers constituting the chain link in the conveyor system to which the present invention is applied come into contact with each other by skipping the valleys of the sprockets, which is also preferable in maintaining the strength of the sprockets.

The sprocket 100 of the present invention may be suitable for a chain conveyor system for transporting a carrier in a pulverized state, in particular, the discharge door is provided, the suction pipe can be connected, it is composed of a sealed loading box including an air outlet, etc. Fine dust can be suitably applied to lorry loading bins of known construction for unloading and transporting large grains.

The present invention is typically driven by the chain and sprocket of the chain conveyor is stuck to the load, the contact surface 102 of the roller 201 and the sprocket 100 when the roller 201 of the chain 200 is connected to the sprocket 100 It is connected while the load flows in between. At this time, as shown in FIG. 6, the foreign matter on the upper side is discharged naturally by moving toward the shaft 300 of the sprocket 100 along the radial foreign matter discharge groove 101.

Here, typically, the shaft 300 on which the sprocket 100 is installed maintains precise dimensional tolerances so that there is no fear that foreign matters may enter. And the foreign matter moved toward the shaft 300 is completely discharged to the lower portion of the sprocket 100 by its own weight.

In this process, the sprocket 100 and the chain roller 201 are provided on the right side or the lower side of the sprocket 100, and there is a contact surface where the foreign matter does not get stuck in the contact surface by the radial foreign matter discharge groove. Therefore, the contact between the sprocket and the roller is made accurately, and smooth driving is achieved.

In particular, there may be a large amount of foreign matter in the lower portion of the sprocket 100, even in the lower contact surface there is no surface on which the foreign matter can be pressed by the radial foreign matter discharge groove 101 there is no foreign matter in the sprocket in any case There is no compression.

7 shows another embodiment of the present invention.

This embodiment forms a radial foreign matter discharge groove 101 toward the center of the axis from the center of the surface in contact with the chain roller 201, the circumferential foreign matter discharge groove 103 on both sides of the sprocket 100 Formed.

The circumferential foreign matter discharge groove 103 is formed in a divided state by the radial foreign matter discharge groove 101.

This circumferential foreign matter discharge groove 103 is secured more space than the space (S) between the sprockets when a pair of sprockets are installed, as shown in Figure 8, the space (S) between both sprockets ) So that foreign matter cannot easily catch, and foreign matter moving between radial foreign matter discharge grooves can be discharged more easily.

According to the embodiments described above, when the rollers of the chain are connected to the sprockets by forming radial foreign matter discharge grooves on the sprockets, foreign substances are automatically discharged between the chain rollers and the contact surfaces of the sprockets so that foreign matters are not squeezed smoothly. Since this is done, it is possible to provide a sprocket having a structure that can prevent foreign matters from sticking even without installing a separate cover or a facility requiring airtightness.

Therefore, it is possible to use a roller-type chain sprocket in the conveyor for conveying the load in the form of fines or pulverization.

100: sprocket
101: radial foreign matter discharge groove
102: contact surface
103: foreign substance discharge groove on the column
200: chain
201: roller
300: shaft

Claims (2)

In a known sprocket in which radial foreign matter discharge grooves are formed from the surface where the chain roller contacts, the foreign matter discharge groove is formed in a continuous space from the surface where the chain roller contacts to the shaft insertion hole so that the foreign matter is not compressed. Sprocket capable of discharging foreign matter, characterized in that to reach the insertion hole to be dispersed. delete

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