JPH10147419A - Scraper device for belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To directly and efficiently remove stuck objects to a drive roller. SOLUTION: This scraper device is provided with a scraping member 11 scraping the stuck objects to a drive roller 2, and the scraping member 11 is made movable in the conveying direction along the oblong hole 16 of a belt 1 and rockable centering on a rocking shaft 12 molded integrally with the scraping member 11. One end of a lever 13 is fixed to the rocking shaft 12. The rocking shaft 12 is excited in the drive roller 2 direction along the conveying direction of the belt 1 by the first spring 14. The other end of the lever 13 is excited vertically downward by the second spring 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a scraper device for a belt conveyor.

[0002]

2. Description of the Related Art For example, in a slope stabilization method, an organic base material such as cement, bark compost, or peat moss is applied to a target surface. These materials are, for example, applied to a belt conveyor. It is transported to a predetermined location. As this type of belt conveyor, as shown in FIGS. 1 and 2, an endless belt 1 is wound around a driving roller 2 and a driven roller 3, which are generally called a motor pulley (pulley motor), and a suitable space is provided between them. A structure having a structure guided by the guide rollers 4 is used. Each of the roller groups 2, 3, 4, 4
Are supported by a support frame 5, and a hopper guide 6 for stably supplying the material onto the belt 1 is provided at the material input position. As shown in FIG. 3, the rotation shaft 2 a of the driving roller 2 is inserted into the elongated hole 5 a formed along the conveying direction of the belt 1 in the auxiliary frame 5 </ b> A, and It is supported by a mounted bearing 8. For this reason,
The position of the drive roller 2 can be moved by the motor adjustment bolt 7 according to the length of the belt 1, so that the distance between the drive roller 2 and the driven roller 3 can be finely adjusted. 5B is a protection frame for protecting the drive roller 2 and the like.

[0003] However, when a material that solidifies when containing water or a material that has tackiness is conveyed, particularly by a belt conveyor that conveys a material for stabilizing a slope, the conveyed material is formed on the side edge of the belt. When it overflows from behind,
With the movement of the belt, the toner eventually adheres to the outer surfaces of the driving roller 2 and the driven roller 3, solidifies in the attached state, and eventually deposits on the outer surface of the roller.

In this way, the outer diameter of the roller increases due to the adhered / solidified material on the outer surface of the roller, and the adhered material is unevenly distributed in the longitudinal direction of the roller. There was a problem. In particular, when the conveying material contains moisture and has high viscosity such as cement or vegetation base material and solidifies, the phenomenon is more remarkable.

When this phenomenon occurs, the belt is severely worn due to the deviation of the belt, so that the life of the belt is extremely shortened and the conveyance itself may be hindered.

In order to avoid such a situation, conventionally, it has been necessary to periodically remove the belt from the roller, and periodically perform a manual operation of hitting the roller with a hammer or the like to remove the deposits. However, this work not only requires a great deal of labor but also has a problem that it may hinder the main body construction work.

In Japanese Patent Application Laid-Open No. 64-13327, a scraper is urged from below by a spring member so that the scraper comes into contact with the lower surface of the conveyor belt. A scraper device in which a roller is brought into contact with an opposite surface is disclosed. Also, in Japanese Patent Application Laid-Open No. 47-21876, an adhering material is applied to a roller of a belt conveyer having a suitable number of cutting plates arranged diagonally in parallel to the roller axis and having a notch at its tip. A chipped roller scraper is disclosed.

[0008]

However, none of the above prior arts directly removes deposits on the drive roller. For example, Japanese Patent Application Laid-Open No. 64-13327
The scraper device disclosed in Japanese Patent Application Publication No. JP-A-2006-133125 is a device for removing the deposits on the conveyor belt, and does not directly remove the deposits on the drive roller. Therefore, it was not possible to efficiently remove the deposits on the roller.

On the other hand, a roller scraper disclosed in Japanese Patent Application Laid-Open No. 47-21876 is installed for a driven roller, and the scraper is vertically moved by adjusting bolts and spring nuts provided at both ends of the scraper device. To adjust so that there is a certain gap between the roller and the scraper. This scraper device is considered to be effective for a driven roller having a fixed rotating shaft, but can follow the movement of a driving roller that can move in the belt conveyance direction. Therefore, it is impossible to efficiently remove the deposits on the drive roller.

Accordingly, an object of the present invention is to directly and efficiently remove deposits on a drive roller to prevent the conveyor belt from being shifted, thereby reducing belt wear and reducing construction work. The purpose is to prevent the suspension of itself.

[0011]

According to the present invention, an endless belt is wound between a driving roller and a driven roller rotatably supported by a support frame, respectively. In the belt conveyor in which the driving roller is movable along the longitudinal direction of the belt conveyor, the leading end abuts along the generatrix direction of the outer peripheral surface of the driving roller to scrape off the attached matter on the outer peripheral surface. A scraping member is swingably supported on the support frame in a vertical plane with a swing axis, and the swing axis is movable along the longitudinal direction. A first urging means for urging in the longitudinal direction and in a direction in which the contact force of the scraping member is increased, and the contact force is increased by swinging the scraping member about the swing axis. Bias in direction A scraper device for a belt conveyor, characterized in that a second biasing means that.

According to a second aspect of the present invention, a swing shaft is provided by passing through the long holes along the longitudinal direction formed in both side frames of the support frame, and the swing shaft is scraped off. A plate, a lever is integrated with at least one end of the pivot shaft, and a first tension member that constitutes a first urging means between the pivot shaft or the lever and the side frame. A belt conveyor scraper device provided with a spring and provided with a second tension spring constituting second urging means between the lever and the side frame on the side opposite to the side where the first tension spring is disposed. is there.

[0013] In the present invention, the oscillating axis of the scraping member, which is movable in the longitudinal direction of the belt conveyor, is moved by the first urging means comprising, for example, a tension spring.
It is urged in the longitudinal direction of the belt conveyor and in the direction in which the contact force of the scraping member increases. For this reason, unlike the case where the swing axis is fixed, when the drive motor is moved along the longitudinal direction of the belt conveyor, the scraping member follows the movement of the drive motor. The state in which the drive motor contacts the drive motor at a suitable angle is maintained.

However, if the scraping member only follows the movement of the drive motor, it may not be possible to provide a good scraping force. Therefore, in the present invention,
For example, the scraping member is oscillated about the swing axis by a second urging means composed of a tension spring to urge the scraping member in a direction in which the contact force of the scraping member increases. Therefore, since a good contact force can be given, even when the drive motor moves, the scraping member can be reliably brought into contact with the drive motor, and thus the scraping force is lost. Therefore, it is possible to reliably and efficiently remove the deposits on the drive motor.

[0015]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 4 is a schematic front view showing a state where the scraper device 10 according to the present invention is provided on the belt conveyor shown in FIGS. 1 to 3, and FIGS. 5 and 6.
FIG.

A scraper device 10 for removing adhering matter from the driving roller 2 is provided with a scraping member 11 which actually comes into contact with the driving roller 2 to scrape off the adhering matter, and a swing shaft integrated with the scraping member 11. Oscillating shaft 12
Are swingably supported by a protection frame 5B functioning as a support frame. As the scraping member 11,
For example, flat steel or the like slightly wider than the body of the drive roller 2 is used. As shown in FIG. 7, a notch 11 a is formed at the boundary between the scraping member 11 and the swing shaft 12. The attached matter scraped from the driving roller 2 can be dropped downward through the cutout 11a.

One end of the pivot shaft 12 is integrated with a horizontally long lever 13 by welding and fixing.
3 is arranged so that its longitudinal direction is substantially along the longitudinal direction of the belt conveyor. Swing shaft 12 and lever 13
In this case, bolts can be used instead of welding. Further, the other ends of the first springs 14, 14 each composed of a tension spring having one end fixed to the protection frame 5B are attached to positions slightly inside the both ends of the swing shaft 12. Also, at the other end of the lever 13,
The other end of the second spring 15 formed of a tension spring having one end fixed to the reinforcing frame 5A is attached. The frame 5 is formed with long holes 16, 16 whose long sides are along the conveying direction of the belt 1, and the swing shaft 12 is inserted through the long holes 16 and supported so as to be swingable.

The operation of the scraper device 10 will be described. The swing shaft 12 is urged by the tensile force of the first spring 14 in the longitudinal direction of the belt conveyor and in the direction in which the contact force of the scraping member increases. Therefore, swing shaft 1
The scraping member 11 integrated with 2 is also urged in the same direction. At this time, the drive motor 2 and the scraping member 11 are adjusted to a suitable angle for scraping. The other end of the lever 13 is connected to the second spring 15
, The second spring 15 is urged in the pulling direction, that is, vertically downward. At this time, since the scraping member 11 and the swinging shaft 12 and the swinging shaft 12 and the lever 13 are respectively integrated, the scraping member 11, the swinging shaft 12, and the lever 13 form one system. Since the swing shaft 12 is swingably supported, the urging force of the second spring 15 in the scraping member 11 is
It is converted into a rotation direction about the swing shaft 12. Therefore, as a result, the scraping member 1
The urging force of the second spring 15 is applied in the direction in which the contact force of 1 increases. These first springs 14
And the urging force of the second spring are combined to keep the contact angle between the scraping member 11 and the drive motor 2 at a suitable angle and to provide a sufficient contact force. Can be efficiently removed.

In the belt conveyor, as described above, the old belt 1 may be replaced with another new belt 1A. At this time, when the length of the new belt 1A is different from the length of the old belt 1 As shown in FIG. 8, the drive roller 2 is moved along the length direction of the long hole 5a by the motor adjustment bolt 7, and the drive roller 2 and the driven roller 3 are moved in accordance with the length of the new belt 1A. And adjust the distance. In such a case, the scraper device 1 according to the present invention is used.
At 0, the urging force of the first spring 14
The swing shaft 12 moves along the elongated hole 16 so as to follow the movement of the drive roller 2. Then, the scraping member 11 moves in the same direction together with the swing shaft 12, so that the contact angle between the drive roller 2 and the scraping member 11 remains at a suitable angle. Further, by the second spring 15,
Since the urging force is applied in the direction in which the contact force with the drive roller 2 increases, the force with which the scraping member 11 scrapes off the deposit from the drive roller 2 is inferior to the state when the old belt 1 was attached. Absent. Therefore, it is possible to efficiently remove the deposits on the driving roller 2.

As the scraping member, an appropriate material such as a scraping rubber plate or a wire brush can be used instead of the flat steel.

On the other hand, as the driven roller 3, the surface member constituting the outer surface of the roller that comes into contact with the belt disclosed by the present applicant in the above-mentioned Japanese Patent Application Laid-Open No. 8-40527 is substantially larger than the powdery and conveyed material. It is preferable to use a belt conveyor roller having a through-hole through which the conveyed material can be removed. This roller will be described more specifically with reference to FIGS. 9 and 10. The roller 20 has a cylindrical core 21 extending concentrically with the center axis, and a disc-shaped projection extending at both ends of the core 21. End surface members 22, 22, and rod-shaped surface members 23 connected along the generatrix direction to connect the outer peripheral portions of the end surface members 22, 22 so as to form a substantially cylindrical shape;
23, and a shaft member 24 penetrating the core portion 21 and integrally provided. Here, the surface members 23, 23 are arranged at intervals in the circumferential direction, and are formed with through holes 25, 25,... Through which the transport material M is substantially larger than the granular transport material M. Also, the core 21
The outer surface and the inner surface of each of the surface members have an interval L substantially larger than the transport material M. Further, in the generatrix direction, the central portion of each of the surface members 23, 23,. Further, a part of the surface members 23 is fitted on the outer periphery of the reinforcing member 26 so that the reinforcing member 26 does not directly contact the belt 1.

In the present embodiment, tension springs are used as the springs 13 and 14 as urging means, but a compression spring may be used.
The first springs are provided on both sides of the belt conveyor, but may be provided on only one side. This is the same for the second spring.

[0023]

As is apparent from the above description, according to the present invention, it is possible to directly and efficiently remove the deposits on the drive roller. Therefore, it is possible to prevent the conveyor belt from shifting, reduce the belt wear, and prevent the construction itself from stopping.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of a belt conveyor.

FIG. 2 is a front view thereof.

FIG. 3 is an enlarged view of a main part thereof.

FIG. 4 is a schematic front view of a belt conveyor provided with the scraper device according to the present invention.

FIG. 5 is an enlarged front view of the main part.

FIG. 6 is a plan view thereof.

FIG. 7 is an enlarged view of a scraper according to the present invention.

FIG. 8 is an enlarged view of a main part of the belt conveyor after replacing the belt.

FIG. 9 is a perspective view of a preferred driven roller.

FIG. 10 is a schematic diagram showing a relationship between the driven roller and a belt.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conveyor belt, 2 ... Drive motor, 3 ... Follower motor, 4 ... Guide roller, 5 ... Frame, 7 ... Motor adjustment bolt, 8 ... Bearing, 11 ... Scraping member, 12 ... Swing shaft, 13 ... Lever, 14 ... first spring, 15 ... second
Spring, 16 ... Long hole.

Claims (2)

[Claims] An endless belt is wound between a driving roller and a driven roller rotatably supported by a support frame, and the driving roller is movable along the longitudinal direction of the belt conveyor. In the above, the tip portion abuts along the generatrix direction of the outer peripheral surface of the drive roller, and a scraping member for scraping off the attached matter on the outer peripheral surface is swingable in a vertical plane with a swing shaft center. Supported on a support frame, and the swing axis is movable along the longitudinal direction, and the swing axis is attached in the longitudinal direction and in a direction in which the contact force of the scraping member increases. And a second urging means for oscillating the scraping member about the pivot axis to urge the scraping member in a direction in which the contact force increases. Belt conveyor Scraper apparatus. 2. A swing shaft is provided by being inserted through slots formed in both sides of the support frame along the longitudinal direction, and the swing shaft and the scraping plate are integrated with each other to form the swing shaft. A lever is integrated with at least one end of the shaft, and a first tension spring constituting first biasing means is provided between the swinging shaft or the lever and the side frame. 2. The scraper device for a belt conveyor according to claim 1, wherein a second tension spring constituting a second urging means is provided between the lever and the side frame on a side opposite to the disposition side. 3.