JP3756177B1 - Residual prevention device with adjusting means - Google Patents

Abstract

An object of the present invention is to suspend a residual prevention device from a tail pulley to maintain a constant clearance between a bucket and a bottom plate of the residual prevention device, while maintaining the above-mentioned clearance appropriately by adding a new structure. A bucket conveyor residual prevention device that can be made variable is developed. [Solution] An adjustment plate fixed to a residual prevention device and having a plurality of pin holes arranged vertically, and fixed to a bearing of a rotary shaft of a tail pulley, Provided with a moving plate having a pin hole, and provided with an adjusting means and a residual prevention device suspended from a tail pulley by connecting and fixing an arbitrary pin hole of the moving plate and a pin hole of the adjusting plate with a connecting pin To do.
[Selection] Figure 1

Description

  The present invention relates to a residual prevention device with adjusting means for a bucket conveyor, and more specifically, a tail pulley provided at the lower end of a bucket conveyor that accommodates an object to be conveyed in a plurality of buckets and continuously conveys the object upward. In the residual prevention device for the object to be transported suspended in the carrier, the device has a clearance adjusting means capable of changing the clearance between the lowest point of the bucket trajectory and the upper surface of the bottom plate of the residual prevention device. It is related with the residual prevention apparatus with an adjustment means.

  In recent years, cereals such as soybeans, corn, wheat and barley have been used not only for food but also as raw materials for livestock feeds and various processed foods, and silo facilities for grains that contain imported cereals are widely used. Has reached. That is, a system for transporting and storing cereal grains stored in a ship in an unwrapped state in a granular state is widely used.

  In the above system, it is necessary to transport the granular cereals in the horizontal direction or in the vertical direction, and among these, the apparatus that transports in the vertical direction is called a bucket conveyor (or bucket elevator). It is an indispensable device that is always included in a system for transporting and storing cereals in a granular state.

  Since the bucket conveyor itself is a known technique for a long time, although not shown, a belt (which may be a chain) is stretched annularly on a pair of pulleys provided above and below the casing. The bucket is fixed, and the belt moves in the vertical direction with the rotational movement of the upper and lower pulleys in the same direction, and the plurality of buckets also move in the vertical direction accordingly. At this time, the conveyance object (cereals) is introduced into the plurality of ascending buckets from the inlet at the bottom of the casing, and the conveyance object is stored in the plurality of buckets and conveyed upward.

  At this time, since the object to be transported introduced from the inlet is in a granular form, it often does not enter the bucket and often deviates downward, and naturally the object to be transported is accumulated at the bottom of the casing. . In this case, the bottom of the casing must be opened one by one to scrape the accumulated object to be transported, and the labor for that becomes very difficult. Therefore, a residual prevention device is provided at the bottom of the casing in order to receive the object to be conveyed deviating downward, scoop it up by the bucket located at the lowermost end and convey it upward.

  Residual prevention devices for bucket conveyors are roughly classified into two types: a type in which the bottom of the casing is shielded by a plate-like object and a type in which the bottom is configured in a bowl shape and installed at the bottom of the casing. The following patent document 1 discloses a type in which the bottom of the casing is shielded by a plate-like object, and the following patent document 2 discloses a type configured in a bowl shape and installed at the bottom of the casing.

  The residual prevention device (referred to as a bottom unit) disclosed in Patent Document 1 is arranged to be curved in a circular arc shape with a gap from the lower end (lowest point) of the bucket trajectory in the vicinity of the bottom of the casing and spaced downward. In the casing, the whole can be moved up and down, and a support mechanism (a turnbuckle device in the embodiment of Patent Document 1) that moves up and down is provided.

  In the bucket conveyor, as in the residual prevention device (bottom unit) of Patent Document 1, the entire residual prevention device is normally configured to be movable up and down. The reason is as follows. That is, the bucket conveyor has a configuration in which a belt or a chain is stretched between a pair of upper and lower pulleys as described above. The chain comes loose.

If this happens, the rotation efficiency of the belt or chain deteriorates, causing various malfunctions and failures. Therefore, the height of the tail pulley itself is lowered to restore the belt or chain tension again. Is done. For this reason, the bucket conveyor is usually provided with a mechanism capable of moving the tail pulley itself up and down within a certain range, and an example thereof can be seen in Patent Document 2. That is, the configuration called “adjustment screw mechanism 13” in Patent Document 2 is an example of such a mechanism.

Although the tension of the belt or chain can be recovered in this way, this adjustment operation does not raise the lower end of the bucket trajectory upward again, and the height of the tail pulley itself depends on the looseness of the belt or chain. Since it lowers, the lower end of the bucket trajectory remains stable while being lowered. In addition, the above-described belt or chain readjustment operation is performed each time the belt or chain is loosened, and as a result, the lower end of the bucket trajectory must be lowered.

  If this process is continued with the position of the residual prevention device kept constant, the end of the bottommost bucket finally comes into contact with the upper surface of the bottom plate of the residual prevention device, but at this time, the bucket passes at a considerably high speed. Therefore, not only the bucket and the top surface of the bottom plate of the residue prevention device are damaged, but also a spark is generated at the contact point, and this spark may induce a dust explosion (because the object to be conveyed is a granular material). It is a danger. Therefore, it is necessary to ensure a certain amount of clearance between the lowermost end of the bucket trajectory and the bottom plate of the residual prevention device.

  The larger the clearance, the better from the viewpoint of avoiding contact between the end of the bucket and the bottom plate of the residual prevention device. However, this is the reverse from the point of efficiency of scooping the conveyance object stored in the residual prevention device, and the smaller the clearance, the better. Also, when it is desired to change the type of transport object, the transport object in the residual prevention device must be emptied once, so from this point of view, it is ideal to minimize the residual by reducing the clearance. . That is, in theory, the state where the clearance is zero and there is no remaining conveyance target is ideal.

  In reality, this clearance is set to a value within a certain range depending on the type of grain that is the object to be conveyed and the convenience of the handler. However, if the position of the residual prevention device is constant, the lowest point of the bucket trajectory itself is lowered due to the slack of the belt or chain as described above, and accordingly, the height of the tail pulley is lowered accordingly. As the operation is repeated, the clearance becomes smaller than the above-defined value, and eventually a situation may occur in which the bucket end contacts the residual prevention device.

  Therefore, in order to prevent such danger and to ensure a certain range of clearance between the lowest end (lowest point) of the bucket trajectory and the residual prevention device, the entire residual prevention device is moved up and down inside the casing. It needs to be possible. That is, when the belt or chain is loosened and the tail pulley is lowered and readjusted, the entire residual prevention device is moved downward by that amount to ensure the above-mentioned constant clearance. come.

  In Patent Document 1, this residual prevention device is moved downward by the above-described support mechanism (in the embodiment, a turnbuckle device). In this method, the position of the tail pulley is used. If it is lowered, it will be necessary to move the residual prevention device downward to ensure a certain range of clearance each time. However, in each case, manually adjusting the turnbuckle devices at a plurality of locations to lower the residual prevention device (bottom unit) is an extremely difficult task and requires skill.

  In this way, in the case of a mechanism that moves the residual prevention device up and down independently, it takes troublesome adjustment, so the inventor suspended the entire residual prevention device from the tail pulley about 10 years ago. This was done considering the configuration in which the tail pulley and the residual prevention device move up and down as a unit. Basically, the same concept is adopted in the “residue removing device in the grain conveying elevator” disclosed in Patent Document 2.

  In the case of the above-described configuration in which the entire residual prevention device is suspended from the tail pulley, if the tail pulley is lowered, the residual prevention device also lowers accordingly, so theoretically the lowest point of the circular trajectory of the bucket and the residual The clearance between the top surface of the bottom plate of the prevention device is always kept constant, but the result is also true. Therefore, the above configuration has received great support in the field and has been widely spread. And here, there was a view that this problem (securing clearance) had finally been solved.

  However, new problems have arisen as the above configuration is widely implemented. That is, in a large-scale facility, the required number of bucket conveyors increases, and it is common to design a large number of bucket conveyors to connect silos. In such a field, it has become clear that there is a problem that must be caused when the structure for suspending the residual prevention device from the tail pulley is employed as described above.

  In other words, when a large number of bucket conveyors are operating, if the belts or chains of many bucket conveyors are replaced with new ones, the speed of the new belts or chains loosening is fast. The problem is that appropriate measures must be taken. In reality, when the belt or chain is new, on average, adjustments are required from two weeks to once a month.

  Although it is sufficient if a large number of bucket conveyor monitoring personnel can be allocated, in reality the number of bucket conveyors will be monitored and dealt with by a limited number of personnel. In addition, the clearance between the lowest point of the bucket trajectory and the bottom plate of the residual prevention device becomes abnormally narrow, and there are some sites where there is also a bucket conveyor that is in danger of dust explosion. In addition, even if the monitoring system is strengthened and a belt or chain with a new bucket conveyor can be adjusted once every two weeks to one month, the operation of the entire system including the bucket conveyor is temporarily suspended each time. Since it must be stopped, the work efficiency is significantly deteriorated. Therefore, a fundamental solution to this point has been demanded.

  As a method for solving this problem, while maintaining the basic configuration of suspending the residual prevention device from the tail pulley, if the belt or chain is new, it is between the lowest point of the bucket trajectory and the bottom plate of the residual prevention device. The clearance can be set to be wider, and the clearance can be changed in such a way that the clearance becomes narrower when the belt or chain has been loosened to some degree over time. However, it is absolutely necessary.

In addition, by adopting such a configuration, the accompanying effect is that the site request to use a bucket conveyor with a clearance that is wider or narrower than the normal clearance (such a request due to various factors such as the type of cereal). Can also be answered easily.
JP 2003-95415 A JP 2001-233430 A

  From the above, the present invention relates to a transport object remaining prevention device hung on a tail pulley provided at the lower end of a bucket conveyor for storing transport objects in a plurality of buckets and continuously transporting them upward. The following issues have been solved.

  In other words, the configuration in which the residual prevention device is suspended from the tail pulley maintains the advantage that a constant clearance between the lowest point of the circular trajectory of the bucket and the bottom plate of the residual prevention device is maintained, and a new configuration is provided for this. In addition, it is an object of the present invention to develop a bucket conveyor residual prevention device that can change the setting of the clearance, that is, can make the clearance variable.

The present invention has been made to solve the above problems, and provides the following means for solving the problems.
<Solution 1>
In the residual prevention device for a transport object suspended from a tail pulley provided at the lower end of a bucket conveyor that stores a transport object in a plurality of buckets and continuously conveys it upward, the lowest point of the bucket trajectory Clearance adjusting means capable of changing the clearance between the top surface of the bottom plate of the residual prevention device is provided one at each of the upper middle portions of the two long sides of the residual prevention device. Each of the adjustment means for the clearance is fixed to the adjustment plate in which a plurality of pairs of pin holes, which are two horizontally drilled and fixed to the residual prevention device, are arranged in pairs, and the bearing of the rotating shaft of the tail pulley. And a moving plate having two pin holes horizontally drilled so as to correspond to the pin holes of the adjusting plate, and the pin holes of the moving plate and the adjusting plate pins in each of the two clearance adjusting means Tie holes The entire residual prevention device is hung on the tail pulley by press-fitting and fixing the pins for use, and the heads of the two connecting pins are fixed to the plate-like pin plate, Are inserted into the pin holes of the retaining plate having two pin holes horizontally drilled so as to correspond to the pin holes of the adjusting plate, and are inserted into the pin holes of the moving plate and the pin holes of the adjusting plate. The pin plate, clasp plate, moving plate, and adjusting plate are firmly fixed to each other, and a concave portion is provided in the upper center portion of the adjusting plate so as not to interfere with the rotating shaft of the tail pulley. Covers the left and right sides of the casing, the pin plate is in close contact with the clasp, the clasp is in close contact with the moving plate, and an elastic body layer surrounding the upper outer periphery of the main body of the residual prevention device with adjusting means is provided. Complete the space between the upper part of the residual prevention device with adjusting means and the inner surface of the casing. Was filled in, spaced pin plate from Tomeban by screwing the bolt in the pin plate, with adjusting means threaded holes occurring voids in the pin plate and cut plates is characterized in that it is bored residual Prevention device.

  According to the invention of Solution 1 of the present invention, the residual of the transport object suspended from the tail pulley provided at the lower end of the bucket conveyor that stores the transport object in a plurality of buckets and continuously transports the transport object upward. In the prevention device, the residual prevention device with adjustment means, characterized in that it has a clearance adjustment means capable of changing the clearance between the lowest point of the trajectory of the bucket and the upper surface of the bottom plate of the residual prevention device. Therefore, when the belt or chain of the bucket conveyor is new and the loosening speed is fast, the clearance between the lowest point of the bucket trajectory and the top surface of the bottom plate of the residual prevention device is abnormally narrowed by setting the clearance wider. And prevent damage to the bucket and the residual prevention device itself, as well as causing malfunction of the entire bucket conveyor. Hesi, and further it is possible to reduce the risk of dust explosion. Further, since it is not necessary to frequently adjust the tension of the belt or chain even in a new bucket conveyor, the entire system including the bucket conveyor can always be operated smoothly, and work efficiency can be increased. Furthermore, when the belt or chain loosening speed becomes slow and settles, by setting the clearance to the reference value, it is possible to increase the residual prevention efficiency of the conveyance object.

  Similarly, according to the invention of Solution 1 of the present invention, the clearance between the lowest point of the bucket trajectory and the upper surface of the bottom plate of the residual prevention device can be set wider or narrower than the reference value. Various clearances can be set according to the user's convenience, and the bucket conveyor can be operated with the clearance according to the user's preference.

According to the invention of the solving means 1 of the present invention, one clearance adjusting means is provided at each of the upper middle portions of the two long sides of the residual preventing device, and the two clearance adjusting means Each of these is fixed to the residual prevention device and fixed horizontally to a pair of pin holes formed in a plurality of pairs, and to the bearing of the rotating shaft of the tail pulley. It consists of a moving plate having two pin holes drilled horizontally so as to correspond to the pin holes, and for connecting the pin holes of the moving plate and the pin holes of the adjusting plate in each of the two clearance adjusting means Since the entire residual prevention device is suspended from the tail pulley by press-fitting and fixing the pins of the pin , the residual prevention device must be suspended from the tail pulley while maintaining the horizontal state at all times. And the operation is extremely stable . Further, the residual prevention device is moved up and down in synchronism with the rotating shaft of the tail pulley by the action of the coupling pin, and this aspect is also excellent in stability. Furthermore, clearance adjustment is very simple because it can be performed simply by fitting a coupling pin into a different pin hole on the adjustment plate. And once a pin is inserted, it is fixed securely.

According to the invention of Solution 1 of the present invention, the heads of the two coupling pins are fixed to the plate-shaped pin plate, and the coupling pins correspond to the pin holes of the adjustment plate 2 horizontally. The pin plate, the retaining plate, the moving plate and the adjusting plate are mutually inserted and press-fitted into the pin hole of the retaining plate having the pin holes which are perforated and inserted into the pin hole of the moving plate and the pin hole of the adjusting plate. In this way , the coupling and fixing state of the moving plate and the adjusting plate becomes more stable. Further, when it is necessary to change the setting of the clearance and it is desired to remove the coupling pin from the pin hole of the moving plate and the pin hole of the adjusting plate, the screwed state of the pin plate and the retaining plate may be released. It's so simple.

According to the invention of Solution 1 of the present invention, two pairs of pin holes of the adjustment plate are horizontally drilled, and a plurality of pairs of the pin holes are arranged vertically. There is a recess in the upper part of the center so that it does not interfere with the rotating shaft of the tail pulley, and the pin holes of the moving plate are also drilled horizontally so as to correspond to the pin holes of the adjustment plate, Further, the pin holes of the clasp plate are also drilled horizontally so as to correspond to the pin holes of the adjustment plate, and two coupling pins fixed to the pin plate pass through the pin holes of the clasp plate, respectively. Therefore, the entire residual prevention device is suspended by a total of four pins, so that the suspended state is more stable. . In addition, since the load applied to one pin can be reduced, it is not necessary to make the configuration of each pin robust. Therefore, an excessive force is not required even when each pin is inserted or removed. Furthermore, it is possible to avoid the occurrence of a problem that the adjustment plate interferes with the rotating shaft of the tail pulley by the action of the concave portion provided in the upper central portion of the adjustment plate.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings. The residual preventing apparatus with adjusting means of the first embodiment described below is one embodiment of the invention described in the solving means 1, the solving means 2, the solving means 3, or the solving means 4.

<Configuration of Example 1>
FIG. 2 is a right side view of the lower end portion of the bucket conveyor BC provided with the adjusting device-equipped residual preventing device 1 with the adjusting device according to the first embodiment. FIG. 1 is a longitudinal sectional view in the longitudinal direction of a bucket conveyor BC equipped with an adjusting means-equipped residual preventing device 1 with adjusting means according to the first embodiment, and FIG. 9 is a longitudinal sectional perspective view in a short direction, respectively. The inside aspect of the lower end part of is shown. 1 and 2, CS is a casing of the bucket conveyor BC, and a charging port EN through which a conveyance object (not shown) is charged is provided on the back surface of the casing CS. W is a monitoring window provided on the front side of the casing CS.

  A tail pulley TP is provided inside the casing CS, and a belt BT is stretched around the tail pulley TP, and a plurality of buckets BA, BA,... Are fixed to the belt BT. The tail pulley TP rotates in the direction X of the arrow, and OB represents the outermost circumference trajectory at the lower end of the belt BT of an arbitrary bucket BA fixed to the belt BT.

  The rotation shaft SF of the tail pulley TP is not directly pivotally attached to the casing CS, and is formed on the rectangular moving plate 51 on the left side (see FIGS. 1 and 9), and on the right side, the rectangular moving plate 52 ( 2 and 9) are pivotally mounted via bearings BR, respectively. A driving force is transmitted to the rotation shaft SF from a motor (not shown) via a belt (not shown).

  The moving plate 51 (see FIGS. 1 and 9) covers the left side surface of the casing CS, and is configured to be slidable in the vertical direction by an adjusting mechanism 53 including a long bolt b1 and guide rails GR and GR. Yes. That is, the bolt b1 of the adjusting mechanism 53 connects both the convex portion 51b of the movable plate 51 and the fixed plate ASU provided at the upper end of the guide rails GR and GR. By adjusting the bolt b1, By changing the distance of the fixed plate ASU, the entire moving plate 51 is slid in the vertical direction. ASL is a fixed plate provided at the lower end of the guide rails GR and GR.

  The moving plate 52 (see FIGS. 2 and 9) covers the right side surface of the casing CS, and is configured to be slidable in the vertical direction by an adjusting mechanism 54 composed of a long bolt b2 and guide rails GR and GR. Yes. That is, the bolt b2 of the adjusting mechanism 54 connects both the convex portion 52b of the moving plate 52 and the fixed plate ASU provided at the upper end of the guide rails GR and GR, and the adjustment of the bolt b2 By changing the distance of the fixed plate ASU, the entire moving plate 52 is slid in the vertical direction. ASL is a fixed plate provided at the lower end of the guide rails GR and GR.

  Since the rotating shaft SF of the tail pulley TP is pivotally attached to the moving plates 51 and 52 as described above, the tail pulley TP is moved horizontally by synchronizing the moving plates 51 and 52 with the horizontal state of the rotating shaft SF. The inside of the casing CS can be moved up and down while holding. That is, the tail pulley TP is positioned by moving the moving plates 51 and 52 in a synchronized manner (known technique).

  An oblong hole HL having a width slightly narrower than the width of the moving plate 51 is formed in a portion covered by the moving plate 51 on the left side surface of the casing CS, and the moving plate on the right side surface of the casing CS. Since the oblong hole HR having a width slightly narrower than the width of the moving plate 52 is also formed in the portion covered by the cover 52, the rotation shaft SF of the tail pulley TP moves up and down without interfering with the casing CS. Is something that can be done.

  Next, the configuration of the residual preventing apparatus with adjusting means 1 installed below the tail pulley TP will be described in detail. 3 is a plan view of the residual preventing apparatus 1 with adjusting means, FIG. 4 is a right side view of the residual preventing apparatus 1 with adjusting means, FIG. 5 is a bottom view of the residual preventing apparatus 1 with adjusting means, and FIG. It is a front view of the sticking residue prevention apparatus 1. FIG. 7 is an external perspective view of the residual preventing apparatus with adjusting means 1 as viewed from the upper right front, and FIG. 8 is an external perspective view of the residual preventing apparatus with adjusting means as viewed from the lower right rear.

  The residual preventing device 1 with adjusting means is configured by integrally fixing a bowl-shaped main body 2 and a front frame 3 constructed mainly using L-shaped steel on the front side of the main body 2. The front frame 3 is also made of metal (except for the elastic body layer 27 surrounding the upper portion of the main body 2).

  The bowl-shaped main body 2 is formed by integrating the front inclined front plate 21a, the front plate 21b, the left side plate 22 on the left side, the rear side inclined rear plate 24a, the rear plate 24b, and the right side plate 23 on the right side. Only the bottom plate 25 which is fixed to the bottom and forms the bottom is configured to be slidable in the front-rear direction. The fixing method is welding, but screwing or other methods can also be used.

  The front side of the bowl-shaped main body 2 is formed by vertically fixing a rectangular front plate 21b to the outside of the upper end of a rectangular inclined front plate 21a whose upper portion is inclined forward, and the inclined front plate 21a. Support plates 21c and 21d are fixed to the left and right ends of the lower part of the front by welding. The support plates 21c and 21d are configured to fix the inclined front plate 21a, the left side plate 22, and the right side plate 23 stably and firmly. The front portions of the support plates 21c and 21d are extended forward to form a part of the structure of the front frame 3.

  A rectangular long hole 21e that is long in the horizontal direction is formed in a portion slightly below the middle portion of the inclined front plate 21a, and seven air nozzles AN, AN,... The arrangement is fixed. The seven air nozzles AN, AN,... Are mechanisms (known techniques) for stirring the conveyance object (not shown) remaining inside the main body 2 so as to be easily stored in the bucket BA. , AN,... Are arranged and fixed in the long holes 21e without any gaps, so that the long holes 21e are completely covered by the seven air nozzles AN, AN,. That is, the conveyance object (not shown) cannot deviate from the long hole 21e.

  The left side surface of the main body 2 is completely shielded by the left side plate 22, but the left side plate 22 is bulged outward at the upper central portion to form a bulging portion 22a having a rectangular shape in plan view. . As shown in FIGS. 3 and 5, this is adapted to the shape on the left side of the casing CS. Therefore, when the left side surface is used for a flat casing, the left side plate is also completely flat.

  An adjustment plate 41 is fixed to the center of the upper side 22b of the bulging portion 22a of the left side plate 22. The fixing method is welding, but screwing or other methods can also be used. Further, the moving plate 51, the retaining plate 61, and the pin plate 71 are fixed to the adjustment plate 41. Details thereof will be described later.

  The rear side of the main body 2 is formed by vertically fixing a rectangular rear plate 24b to the outside of the upper end of a rectangular inclined rear plate 24a whose upper portion is inclined rearward. Support plates 24c and 24d are fixed to the left and right ends of the plate by welding. The support plates 24c and 24d are configured to fix the inclined rear plate 24a, the left side plate 22, and the right side plate 23 stably and firmly.

  The right side surface of the main body 2 is completely shielded by the right side plate 23, but the right side plate 23 bulges outward at the upper center portion to form a bulging portion 23a having a rectangular shape in plan view. . As in the left side, as shown in FIGS. 3 and 5, this is adapted to the shape on the right side of the casing CS. Therefore, when the right side surface is used for a flat casing, the right side plate is also completely flat.

  An adjustment plate 42 is fixed to the center of the upper side 23b of the bulging portion 23a of the right side plate 23. The fixing method is welding, but screwing or other methods can also be used. Further, a moving plate 52, a retaining plate 62, and a pin plate 72 are fixed to the adjustment plate 42. Details thereof will be described later.

  The front lower portion of the left side plate 22 extends downward to become a support plate 22c, and the front lower portion of the right side plate 23 extends downward to become a support plate 23c (see FIGS. 7 and 8). A beam 3b is provided and fixed to the support plate 21c and the support plate 23c to form a part of the front frame 3.

  The elastic layer 27 made of urethane resin is formed on the outer surface of the front plate 21b, the upper part of the left side plate 22, the most part of the bulging part 22a, the rear plate 24b, the upper part of the right side plate 23, and the most part of the bulging part 23a. Is glued. That is, the upper portion of the main body 2 of the residual preventing device with adjusting means 1 is surrounded by the elastic body layer 27. The elastic body layer 27 has a thickness that is equal to or greater than that of each part constituting the main body 2, that is, the inclined front plate 21a, the front plate 21b, the left side plate 22, the right side plate 23, the inclined rear plate 24a, and the rear plate 24b. is doing.

  As shown in FIGS. 3, 5, 6, and 9, the elastic layer 27 completely fills the space between the upper portion of the main body 2 of the residual preventing device 1 with adjusting means and the inner surface of the casing CS. That is, the elastic body layer 27 is configured to prevent the conveyance object (not shown) from deviating downward from the gap generated between the residual preventing device with adjustment means 1 and the inner surface of the casing CS. 3 to 6 and FIG. 9, the elastic layer 27 is shown by a solid line, but in FIGS. 7 and 8, in order to show the shape of the main body 2 of the residual preventing device with adjustment means 1 in an easy-to-understand manner, The elastic body layer 27 is indicated by a virtual line (two-dot chain line).

Although the bottom of the main body 2 is shielded by the bottom plate 25, the bottom plate 25 is configured to be slidable in the front-rear direction as described above. That is, the guide rail 25a is fixed to the lower end portion of the left side plate 22, the guide rail 25b is fixed to the lower end portion of the right side plate 23, and the guide rail 25c is fixed to the lower end portion of the inclined rear plate 24a. Guided by 25a and 25b, it is configured to be slidable in the front-rear direction. The guide rail 25c serves to store the rear end portion of the bottom plate 25 when the bottom plate 25 completely shields the bottom portion of the main body 2. Further, the guide rails 25 a and 25 b extend forward and constitute a part of the front frame 3.

  The bottom plate 25 is opened and closed by a rod RD of a cylinder CL fixed to the front frame 3. The rod RD is fixed to the rear end portion of the bottom plate 25 via a connector 25d, and the bottom plate 25 slides back and forth by the expansion and contraction of the rod RD, and opens and closes the bottom portion of the main body 2. The bottom plate 25 is normally positioned at the rearmost end (the position shown in FIGS. 3 to 9), but when discharging the residue of the conveyance object (not shown) staying inside the residual preventing device 1 with adjusting means. The bottom portion of the residual preventing device with adjusting means 1 is opened by sliding only forward. The cylinder CL is fixed to a base 3a located at the lower center of the front frame 3, and the base 3a is fixed to a beam 3b as shown in FIGS.

  Bases 3d and 3d (see FIGS. 4 and 6) are fixed to the upper surface of the beam 3c (see FIG. 7) in front of the base 3a by welding, and seven air nozzles AN and AN are attached to the bases 3d and 3d. ,... Are fixed to a header HA that distributes compressed air (known technique). TB and TB are tubes for sending compressed air. The air nozzles AN, AN,..., The header HA, the tubes TB, TB are transported by sending compressed air into the residual preventing device 1 with adjusting means and staying inside the residual preventing device 1 with adjusting means as described above. This is a configuration (known technique) for stirring an object (not shown) and making it easy to be stored in a bucket BA.

  Next, the configuration of the adjustment plates 41 and 42 will be described in detail. As shown in FIG. 13a, the adjustment plate 41 has a substantially square plate shape, a rectangular plate shape in front of the upper portion of the left side surface of the main body 41a in which a concave portion 41d in which the lower portion has an arc shape in a side view is formed in the upper center portion. The convex part 41b of the rectangular plate-shaped convex part 41c is being fixed to the upper back of the left side surface as one, respectively.

A pin hole 411, a pin hole 413, and a pin hole 415 are formed in order from the lower side in a state where both the main body 41a and the convex portion 41b are penetrated in the portion to which the convex portion 41b is fixed. Further, a pin hole 412, a pin hole 414, and a pin hole 416 are formed in order from the bottom in a state where both the main body 41 a and the convex portion 41 c are penetrated in the portion to which the convex portion 41 c is fixed. The distance between the pin hole 411 and the pin hole 413, the distance between the pin hole 412 and the pin hole 414, the distance between the pin hole 413 and the pin hole 415, and the distance between the pin hole 414 and the pin hole 416 are all equal. da.

The pin hole 411 and the pin hole 412 are disposed in the horizontal direction, the pin hole 413 and the pin hole 414 are disposed in the horizontal direction, and the pin hole 415 and the pin hole 416 are disposed in the horizontal direction. Further, the pin hole 411, the pin hole 413, and the pin hole 415 are arranged in the vertical direction, and the pin hole 412, the pin hole 414, and the pin hole 416 are arranged in the vertical direction. Further, the distance between the pin hole 411 and the pin hole 412, the distance between the pin hole 413 and the pin hole 414, and the distance between the pin hole 415 and the pin hole 416 are all equal to d1, but the distance d1 is fixed to the pin plate 71 described later. The distance d7 between the pins 71a and 71b (see FIG. 15a) is the same.

The adjustment plate 42 has a symmetrical configuration with the adjustment plate 41. That is, as shown in FIG. 13b, the adjustment plate 42 has a substantially square plate shape with a rectangular shape in front of the upper portion of the right side surface of the main body 42a in which a concave portion 42d in which the lower portion has an arc shape in a side view is formed in the upper center portion. A plate-like convex portion 42b and a rectangular plate-like convex portion 42c are integrally fixed to the upper rear of the right side surface.

A pin hole 421, a pin hole 423, and a pin hole 425 are formed in order from the lower side in a state of passing through both the main body 42a and the convex part 42b in the portion to which the convex part 42b is fixed. In addition, a pin hole 422, a pin hole 424, and a pin hole 426 are formed in that order from the bottom in a state where both the main body 42a and the convex portion 42c pass through the portion to which the convex portion 42c is fixed. The distance between the pin hole 421 and the pin hole 423, the distance between the pin hole 422 and the pin hole 424, the distance between the pin hole 423 and the pin hole 425, and the distance between the pin hole 424 and the pin hole 426 are all equal. db. The distance db is configured to be equal to the distance da in the adjustment plate 41.

The pin hole 421 and the pin hole 422 are disposed in the horizontal direction, the pin hole 423 and the pin hole 424 are disposed in the horizontal direction, and the pin hole 425 and the pin hole 426 are disposed in the horizontal direction. Further, the pin hole 421, the pin hole 423, and the pin hole 425 are arranged in the vertical direction, and the pin hole 422, the pin hole 424, and the pin hole 426 are arranged in the vertical direction. Further, the distance between the pin hole 421 and the pin hole 422, the distance between the pin hole 423 and the pin hole 424, and the distance between the pin hole 425 and the pin hole 426 are all equal to d2, but the distance d2 is fixed to the pin plate 71 described later. The distance d8 between the pins 72a and 72b (see FIG. 15b) is the same.

In the adjustment plate 41, the lower surface of the convex portion 41b and the lower surface of the convex portion 41c are fixed to the upper side 22b of the bulged portion 22a (see FIG. 7) of the main body 2 by welding, and the lower left side surface of the main body 41a is bulged of the main body 2. It is fixed to the inner surface of the portion 22a (see FIG. 7) by welding. Further, the adjustment plate 42 has the lower surface of the convex portion 42b and the lower surface of the convex portion 42c fixed to the upper side 23b of the bulging portion 23a (see FIG. 7) of the main body 2 by welding, and the lower right side surface of the main body 42a is the lower portion of the main body 2. It is fixed to the inner surface of the bulging portion 23a (see FIG. 7) by welding. Therefore, the adjustment plates 41 and 42 are integrated with the main body 2 of the residual preventing apparatus 1 with adjusting means, and from this point, the name of the residual preventing apparatus with adjusting means is generated.

Next, the configuration of the moving plates 51 and 52 will be described in detail. As shown in FIG. 14a, the main body 51a of the moving plate 51 is a vertically long rectangular plate, and a rectangular plate-like convex portion 51b is integrally projected and fixed to the main body 51a on the upper left side surface. And the volt | bolt b1 of the adjustment mechanism 53 is penetrated by the center part of the convex part 51b. Since the adjustment mechanism 53 is described, the description in this section is omitted.

In addition, a shaft hole 51c is formed in a substantially central portion of the moving plate 51. The shaft hole 51c is configured to be inserted through the left end portion of the rotation shaft SF of the tail pulley. In addition, pin holes 51d and 51e are formed in the horizontal direction slightly below the shaft hole 51c. The pin hole 51d is inserted through a pin 71a (see FIG. 15a) of the pin plate 71 described later. The pin hole 51e is a structure for inserting a pin 71b (see FIG. 15a) of the pin plate 71 described later. Therefore, the distance d3 between the pin holes 51d and 51e is configured to be equal to the distance d7 between the pins 71a and 71b.

The moving plate 52 has a configuration that is symmetrical to the moving plate 51. That is, as shown in FIG. 14B, the main body 52a of the moving plate 52 has a vertically long rectangular plate shape, and a rectangular plate-like convex portion 52b is protruded and fixed integrally with the main body 52a on the upper right side surface. And the volt | bolt b2 of the adjustment mechanism 54 is penetrated by the center part of the convex part 52b. Since the adjustment mechanism 54 is described, the description in this section is omitted.

In addition, a shaft hole 52c is formed at a substantially central portion of the moving plate 52. This shaft hole 52c is configured to be inserted through the right end portion of the rotation shaft SF of the tail pulley. In addition, pin holes 52d and 52e are formed in the horizontal direction slightly below the shaft hole 52c. The pin hole 52d is inserted through a pin 72a (see FIG. 15b) of the pin plate 72 described later. The pin hole 52e is a structure for inserting a pin 72b (see FIG. 15b) of the pin plate 72 described later. Therefore, the distance d4 between the pin holes 52d and 52e is configured to be equal to the distance d8 between the pins 72a and 72b.

Next, the structure of the clasps 61 and 62 will be described in detail. As shown in FIG. 15 a, the clasp 61 is a horizontally-long rectangular plate shape, and four sides on the right side are tapered. Further, a pin hole 61a is formed in the front portion and a pin hole 61b is formed in the rear portion so as to be aligned in the horizontal direction. The pin hole 61a is inserted through a pin 71a (see FIG. 15a) of the pin plate 71 described later. The pin hole 61b is a structure for inserting a pin 71b (see FIG. 15a) of the pin plate 71 described later. Therefore, the distance d5 between the pin hole 61a and the pin hole 61b is configured to be equal to the distance d7 between the pin 71a and the pin 71b.

Further, a screw hole 61c having a screw groove is formed in the middle of the pin hole 61a and the pin hole 61b, that is, in the center of the retaining plate 61. The screw hole 61c is a structure for screwing a bolt b3 (see FIG. 15a) described later.

The clasp 62 has a symmetrical configuration with the clasp 61. That is, as shown in FIG. 15b, the clasp 62 is a horizontally long rectangular plate and is tapered on the four sides on the left side. Further, a pin hole 62a is formed in the front portion and a pin hole 62b is formed in the rear portion so as to be aligned in the horizontal direction. The pin hole 62a is inserted into a pin 72a (see FIG. 15b) of the pin plate 72 described later. The pin hole 62b is a structure for inserting a pin 72b (see FIG. 15b) of the pin plate 72 described later. Therefore, the distance d6 between the pin hole 62a and the pin hole 62b is configured to be equal to the distance d8 between the pin 72a and the pin 72b.

Further, a screw hole 62c having a screw groove is formed in the middle of the pin hole 62a and the pin hole 62b, that is, in the center of the retaining plate 62. The screw hole 62c is a structure for screwing a bolt b4 (see FIG. 15b) described later.

Next, the configuration of the pin plates 71 and 72 will be described in detail. As shown in FIG. 15a, the pin plate 71 has a horizontally long rectangular plate shape, and a cylindrical pin 71a whose right end portion has a slightly reduced diameter is protruded and fixed to the right by welding and is attached to the rear portion. A cylindrical pin 71b with a slightly reduced diameter at the right end is also protruded and fixed to the right by welding, and the pins 71a and 71b are protruded side by side in the horizontal direction, and the distance d7 is adjusted as described above. It is equal to the distance d1 (FIG. 13a) in the plate 41, the distance d3 (FIG. 14a) in the moving plate 51, and the distance d5 (FIG. 15a) in the retaining plate 61. The pins 71a and 71b are both slightly protruded from the left side surface of the pin plate 71.

Further, screw holes 71c, 71d, 71e having screw grooves are formed in the middle portion between the pins 71a and 71b of the pin plate 71 so as to be aligned in the horizontal direction. The screw hole 71c is located at the center of the pin plate 71 and has a configuration for screwing a bolt b3 (see FIG. 15a), which will be described later, and is therefore the same size as the screw hole 61c of the retaining plate 61. The screw holes 71d and 71e are formed at equal intervals before and after the screw hole 71c. The role of the screw holes 71d and 71e will be described in detail in the section of action.

The pin plate 72 has a symmetrical configuration with the pin plate 71. That is, as shown in FIG. 15b, the pin plate 72 is a horizontally long rectangular plate, and a columnar pin 72a whose left end is slightly reduced in diameter is protruded and fixed to the left by welding at the front. A cylindrical pin 72b with a slightly reduced diameter at the left end is also protruded and fixed to the left by welding, and the pins 72a and 72b are protruded side by side in the horizontal direction, and the distance d8 is as described above. Further, the distance d2 (FIG. 13b) in the adjusting plate 42, the distance d4 (FIG. 14b) in the moving plate 52, and the distance d6 (FIG. 15b) in the retaining plate 62 are equal. The pins 72a and 72b are also slightly projected on the right side surface of the pin plate 72.

In addition, screw holes 72c, 72d, and 72e having screw grooves are formed in the middle portion between the pins 72a and 72b of the pin plate 72 side by side in the horizontal direction. The screw hole 72c is located at the center of the pin plate 72 and is configured to screw a bolt b4 (see FIG. 15b), which will be described later, and is therefore the same size as the screw hole 62c of the retaining plate 62. The screw holes 72d and 72e are formed at equal intervals before and after the screw hole 72c. The role of the screw holes 72d and 72e will be described in detail in the section of action.

Now that the description of the configuration of each part of the residual preventing device with adjustment means 1 has been completed, the assembly configuration of the main parts of the residual preventing device with adjustment means 1, that is, the adjustment plate 41, the moving plate 51, The assembly structure of the clasp plate 61 and the pin plate 71 and the assembly structure of the adjustment plate 42, the moving plate 52, the clasp plate 62, and the pin plate 72 will be described in detail. Related main drawings are FIGS. 7 to 12.

7 is an external perspective view of the residual preventing apparatus 1 with adjusting means as seen from the upper right front as described above, and FIG. 8 is an external perspective view of the residual preventing apparatus 1 with adjusting means as seen from the lower right rear. FIG. 9 is a longitudinal sectional perspective view of the lower end portion of the bucket conveyor BC in the short direction, FIG. 10 is an enlarged view of the main part of the left side surface of the lower end portion of the bucket conveyor BC, and FIG. FIG. 12 is a sectional view taken along line B-B in FIG. 10.

First, the assembly structure of the main part of the left side surface of the residual preventing apparatus 1 with adjusting means will be described. As described above, the adjustment plate 41 fixed to the upper side 22b of the bulging portion 22a of the main body 2 of the residual prevention device with adjustment means 1 is provided with six pin holes 411 to 416 ( Of these, the pin hole 413 and the pin hole 414 located in the middle in the vertical direction are used.

As shown in FIG. 12, the pin 71 a fixed to the pin plate 71 is inserted into the pin hole 61 a of the retaining plate 61, further inserted into the pin hole 51 d of the moving plate 51, and further inserted into the pin hole 413 of the adjustment plate 41. To do. At the same time, the pin 71 b is inserted into the pin hole 61 b of the retaining plate 61, further inserted into the pin hole 51 e of the moving plate 51, and further inserted into the pin hole 414 of the adjustment plate 41.

The inner diameters of the pin hole 61a, the pin hole 51d, and the pin hole 413 are substantially equal to the outer diameter of the pin 71a, and the inner diameters of the pin hole 61b, the pin hole 51e, and the pin hole 414 are substantially equal to the outer diameter of the pin 71b. Therefore, the pin 71a is press-fitted into the pin hole 61a, the pin hole 51d, and the pin hole 413, and the pin 71b is press-fitted into the pin hole 61b, the pin hole 51e, and the pin hole 414. Accordingly, the pin plate 71, the retaining plate 61, the moving plate 51, and the adjusting plate 41 are firmly fixed to each other only by this, but the bolt b3 is further inserted into the screw hole 71c of the pin plate 71 and the screw hole 61c of the retaining plate 61. The pin plate 71 and the retaining plate 61 are completely fixed.

Thus, when the pins 71a and 71b are completely press-fitted into the pin holes 413 and 414 of the adjustment plate 41, the excess portions of the pins 71a and 71b protruding on the right side surface of the adjustment plate 41 are cut. 7 and 8 show a state where the surplus portions of the pins 71a and 71b have not been cut yet before assembly, and FIGS. 9, 11 and 12 show the surplus portions of the pins 71a and 71b after assembly. It shows the state that was done.

After the assembly, the pins 71a and 71b do not interfere with the casing CS by the oblong hole HL drilled in the left side surface of the casing CS (see FIGS. 11 and 12). Further, the pin plate 71 is in close contact with the retaining plate 61, and the retaining plate 61 is in close contact with the moving plate 51. However, a gap is generated between the moving plate 51 and the adjusting plate 41. This is because, in addition to the thickness of the casing CS, there is a thickness of the elastic body layer 27 that surrounds the upper outer periphery of the main body 2 of the residual preventing device with adjustment means 1. Further, as described above, the elastic layer 27 is pressure-bonded to the casing CS and completely fills the gap between the main body 2 of the residual preventing apparatus with adjustment means 1 and the casing CS.

Next, the assembly configuration of the main part of the right side surface of the residual preventing apparatus 1 with adjusting means will be described. As described above, the adjustment plate 42 fixed to the upper side 23b of the bulging portion 23a of the main body 2 of the residual preventing apparatus 1 with adjustment means is provided with six pin holes 421 to 426 (FIG. 13b). Since the pin hole 413 and the pin hole 414 located in the middle of the vertical direction among the six pin holes of the adjustment plate 41 are used on the left side described above, the adjustment plate 41 also has the vertical direction. An intermediate pin hole 423 and pin hole 424 are used. That is, by doing in this way, the horizontal of the whole residual prevention apparatus 1 with an adjustment means is ensured.

As shown in FIG. 12, the pin 72 a fixed to the pin plate 72 is inserted into the pin hole 62 a of the retaining plate 62, further inserted into the pin hole 52 d of the moving plate 52, and further inserted into the pin hole 423 of the adjustment plate 42. To do. At the same time, the pin 72 b is inserted into the pin hole 62 b of the retaining plate 62, further inserted into the pin hole 52 e of the moving plate 52, and further inserted into the pin hole 424 of the adjustment plate 42.

The inner diameters of the pin hole 62a, the pin hole 52d, and the pin hole 423 are substantially equal to the outer diameter of the pin 72a, and the inner diameters of the pin hole 62b, the pin hole 52e, and the pin hole 424 are substantially equal to the outer diameter of the pin 72b. Therefore, the pin 72a is press-fitted into the pin hole 62a, the pin hole 52d, and the pin hole 423, and the pin 72b is press-fitted into the pin hole 62b, the pin hole 52e, and the pin hole 424. Accordingly, the pin plate 72, the retaining plate 62, the moving plate 52, and the adjusting plate 42 are firmly fixed to each other only by this, but the bolt b4 is further inserted into the screw hole 72c of the pin plate 72 and the screw hole 62c of the retaining plate 62. Then, the pin plate 72 and the retaining plate 62 are completely fixed.

Thus, after the pins 72a and 72b are completely press-fitted into the pin holes 423 and 424 of the adjustment plate 42, the excess portions of the pins 72a and 72b protruding from the left side surface of the adjustment plate 42 are cut. FIGS. 7 and 8 show a state where the surplus portions of the pins 72a and 72b have not been cut yet before assembly, and FIGS. 9, 11 and 12 show the surplus portions of the pins 72a and 72b after assembly. It shows the state that was done.

After assembly, the pins 72a and 72b do not interfere with the casing CS due to the oblong hole HR drilled in the right side surface of the casing CS (see FIGS. 11 and 12). Further, the pin plate 72 is in close contact with the retaining plate 62, and the retaining plate 62 is in close contact with the moving plate 52. However, a gap is generated between the moving plate 52 and the adjusting plate 42. This is because, in addition to the thickness of the casing CS, there is a thickness of the elastic body layer 27 that surrounds the upper outer periphery of the main body 2 of the residual preventing device with adjustment means 1. Further, as described above, the elastic layer 27 is pressure-bonded to the casing CS and completely fills the gap between the main body 2 of the residual preventing apparatus with adjustment means 1 and the casing CS.

As described above, the assembling configuration is completed on the upper left side and the upper right side of the main body 2 of the residual preventing apparatus 1 with adjusting means. The residual preventing apparatus 1 with adjusting means includes an adjusting plate 41 and a moving plate. 51 is firmly fixed by the pins 71a and 71b, and the adjustment plate 42 and the moving plate 52 are firmly fixed by the pins 72a and 72b, so that the moving plate 51 and 52 are suspended. However, since the rotary shaft SF of the tail pulley TP is pivotally attached to the moving plates 51 and 52 as described above, as a result, the entire residual preventing device 1 with adjusting means is suspended from the tail pulley TP. It becomes.

As a result, as shown in FIG. 10, a certain gap is generated between the lowest point OBL of the orbit OB of the bucket BA and the upper surface of the bottom plate 25 of the main body 2 of the main body 2 of the residual preventing device with adjustment means 1. The pin holes 413 and 414 of the adjustment plate 41 used at this time are the second pin holes from the bottom, and the pin holes 423 and 424 of the adjustment plate 42 are also the second pin holes from the bottom. Is the clearance c2. Since both the bucket BA and the residual preventing device 1 with adjusting means are suspended from the tail pulley TP, the clearance c2 is constant regardless of the position of the tail pulley TP as long as the tension of the belt BT is constant.

<Operation of Example 1>
Next, the operation of the residual preventing apparatus with adjusting means 1 according to the first embodiment will be described in detail with reference to the drawings. As described above, when the residual preventing device with adjusting means 1 is suspended from the tail pulley TP using the pin holes 413 and 414 of the adjusting plate 41 and the pin holes 423 and 424 of the adjusting plate 42, the tension of the belt BT is constant. As long as the clearance c2 is constant, if the belt BT is a new one that has just been replaced, the speed of the belt BT loosening is high, and the tension of the belt BT is adjusted at a pace of about two weeks to one month. If not, the belt BT is loosened, and the lowest point OBL of the orbit OB of the bucket BA is rapidly lowered. That is, the clearance c2 (see FIG. 10) is rapidly narrowed.

  When the clearance c2 becomes narrow and finally becomes zero, the lower end portion of the bucket BA comes into contact with the upper surface of the bottom plate 25 of the residual preventing device with adjustment means 1. In this case, not only the bucket BA and the bottom plate 25 are damaged, but also the malfunction of the bucket conveyor BC itself is caused. In the worst case, the bottom end of the bucket BA and the bottom plate 25 of the residual preventing device 1 with adjusting means There is even a danger of inducing a dust explosion due to sparks generated by contact with the top surface.

  Therefore, in order to avoid such danger and to ensure the smooth operation of the bucket conveyor BC, the position of the tail pulley TP is lowered in response to the looseness of the belt BT, and the tension of the belt BT is always kept constant. It is ideal if the bucket conveyor BC can be operated. However, the operation of lowering the position of the tail pulley TP and keeping the tension of the belt BT constant requires a considerable amount of work, and in the meantime, all the systems including the bucket conveyor BC must stop operating. Therefore, as described above, at the site where a large number of bucket conveyors BC are installed, in reality, the work of frequently lowering the position of the tail pulley TP in response to the looseness of the belt BT is frequently performed. It becomes difficult.

  Therefore, with respect to the bucket conveyor BC that is still new in the belt BT, the clearance c2 described above is ensured to be wide, and it is not necessary to frequently adjust the tension of the belt BT (that is, the position of the tail pulley TP). In order to do so, the relative positional relationship between the tail pulley TP and the residual preventing device with adjusting means 1 must be changed from the state shown in FIGS. As a result, this is an operation of changing the relative positional relationship between the adjusting plate 41 and the moving plate 51 and between the adjusting plate 42 and the moving plate 52. This is because the rotating shaft SF of the tail pulley TP is pivotally attached to the moving plates 51 and 52, and the adjusting plates 41 and 42 are fixed to the residual preventing device 1 with adjusting means.

  Therefore, first, when the pin 71a of the pin plate 71 is removed from the pin hole 413 of the adjustment plate 41 and the pin 71b is removed from the pin hole 414 of the adjustment plate 41 in order to release the states of FIGS. At the same time, the operation of removing the pin 72a of the pin plate 72 from the pin hole 423 of the adjustment plate 42 and removing the pin 72b from the pin hole 424 of the adjustment plate 42 must be performed.

  Therefore, as a first step for that purpose, the bolt b3 which has fixed the pin plate 71 to the retaining plate 61 is removed, and the bolt b4 which has fixed the pin plate 72 to the retaining plate 62 is removed. Thereby, the adhering state of the pin plate 71 and the clasp plate 61 is released, and the adhering state of the pin plate 72 and the clasp plate 62 is also released.

  However, the pin 71a is press-fitted into the pin hole 61a of the clasp 61, the pin 71b is press-fitted into the pin hole 61b of the clasp 61, the pin 72a is into the pin hole 62a of the clasp 62, and the pin 72b is the pin hole of the clasp 62. Since the bolts b3 and b4 are simply removed, the fixing state of the pin plate 71 and the retaining plate 61 and the fixing state of the pin plate 72 and the retaining plate 62 are not released.

  Therefore, first, on the pin plate 71 side, bolts (not shown) that fit into the screw holes 71d and 71e are screwed into the screw holes 71d and 71e at the same time. If the length of the bolt (not shown) is made longer than the thickness of the pin plate 71, the terminal of the bolt (not shown) penetrates the thickness of the pin plate 71 and protrudes to the right side of the pin plate 71, but still not shown. By continuing screwing in the bolt, the right side surface of the pin plate 71 is separated from the left side surface of the retaining plate 61, and a gap is generated between the right side surface of the pin plate 71 and the left side surface of the retaining plate 61.

  An appropriate instrument (not shown) is inserted into the gap formed in this way, and the pin 71a of the pin plate 71 is removed from the pin hole 51d of the moving plate 51 and the pin hole 413 of the adjustment plate 41 by the lever principle. Simultaneously with the removal, the pin 71 b is removed from the pin hole 51 e of the moving plate 51 and the pin hole 414 of the adjustment plate 41. Alternatively, a rope or chain (not shown) may be inserted through the generated gap and pulled out.

  In this state, the connection state of the adjustment plate 41 and the moving plate 51 is released, and as a result, the connection state of the tail pulley TP and the residual preventing apparatus 1 with adjustment means is also released on the left side. In addition, when performing the above operation | work, naturally the operation | work which temporarily fixes the position of the residual prevention apparatus 1 with an adjustment means beforehand is required so that the residual prevention apparatus 1 with an adjustment means may not fall.

  Next, on the right side, the operation of removing the pin 72a of the pin plate 72 from the pin hole 423 of the adjustment plate 42 and removing the pin 72b from the pin hole 424 of the adjustment plate 42 is performed. This operation is performed on the left side in the same procedure as the operation of removing the pin 71a of the pin plate 71 from the pin hole 413 of the adjustment plate 41 and removing the pin 71b from the pin hole 414 of the adjustment plate 41. .

  That is, first, as a first step, the bolt b4 that has fixed the pin plate 72 to the retaining plate 62 is removed. Next, bolts (not shown) that fit into the screw holes 72d and 72e are screwed into the screw holes 72d and 72e at the same time. If the length of the bolt (not shown) is made longer than the thickness of the pin plate 72 in the same manner as the left side, the left side of the pin plate 72 is separated from the right side of the retaining plate 62 by continuing screwing. A gap is formed between the left side surface of the pin plate 72 and the right side surface of the retaining plate 62.

  An appropriate instrument (not shown) is inserted into the gap as in the left side, or a rope or chain (not shown) is inserted to adjust the pin 72a of the pin plate 72 to the pin hole 52d of the moving plate 52. The pin 72 b is removed from the pin hole 52 e of the moving plate 52 and the pin hole 424 of the adjustment plate 42 at the same time as it is removed from the pin hole 423 of the plate 42. In this state, the connection state between the adjustment plate 42 and the moving plate 52 is released on the right side, and as a result, the connection state between the tail pulley TP and the residual preventing device 1 with adjustment means is completely released.

  Since the purpose of the work is to enlarge the clearance c2 in FIG. 10, the pin 71a of the pin plate 71 is moved from the pin hole 413 of the adjustment plate 41 to a pin hole 415 that is one step higher than the pin hole 413 of the adjustment plate 41. The pin 71 b is inserted through the pin hole 416 that is one step higher than the pin hole 414 of the adjustment plate 41. On the right side, the pin 72 a of the pin plate 72 is inserted into the pin hole 425 at a position one step higher than the pin hole 423 of the adjustment plate 42, and the pin 72 b is positioned one step higher than the pin hole 424 of the adjustment plate 42. The pin hole 426 is inserted.

Specifically, as shown in FIGS. 16 to 18, on the left side, the pin 71 a fixed to the pin plate 71 is inserted into the pin hole 61 a of the retaining plate 61, and the moving plate 51 is further moved. It is inserted through the pin hole 51 d and further through the pin hole 415 of the adjustment plate 41. At the same time, the pin 71 b is inserted into the pin hole 61 b of the retaining plate 61, further inserted into the pin hole 51 e of the moving plate 51, and further inserted into the pin hole 416 of the adjustment plate 41.

On the right side, the pin 72 a fixed to the pin plate 72 is inserted into the pin hole 62 a of the retaining plate 62, further inserted into the pin hole 52 d of the moving plate 52, and further the pin hole 425 of the adjustment plate 42. Insert through. At the same time, the pin 72 b is inserted into the pin hole 62 b of the retaining plate 62, further inserted into the pin hole 52 e of the moving plate 52, and further inserted into the pin hole 426 of the adjustment plate 42.

In this way, the entire residual preventing device 1 with adjusting means is lower by one step than the state shown in FIGS. 10 to 12, that is, the distance da (see FIG. 13a) in the adjusting plate 41, and the adjusting plate 42. Is suspended from the tail pulley TP at a position lowered by a distance db (see FIG. 13b). As a result, the lowest point OBL of the orbit OB of the bucket BA and the main body 2 of the residual preventing apparatus 1 with adjusting means The space between the upper surface of the bottom plate 25 and the bottom plate 25 is wider by one step than the state shown in FIGS. That is, the distance da increases on the adjustment plate 41 (see FIG. 13a) and the distance db on the adjustment plate 42 (see FIG. 13b). A gap generated at this time is defined as a clearance c3 (see FIGS. 16 and 17).

That is, the pin holes 415 and 416 of the adjustment plate 41 used at this time are the third pin holes from the bottom, and the pin holes 425 and 426 of the adjustment plate 42 are also the third pin holes from the bottom. The clearance is the clearance c3. Comparing the clearance c2 in FIGS. 10 and 11 with the clearance c2 in FIGS. 16 and 17, it can be seen that the clearance c3 is wider than the clearance c2 by a distance da (see FIG. 13a) in the adjustment plate 41. Alternatively, it can be seen that the distance is increased by the distance db (see FIG. 13 b) in the adjustment plate 42.

  That is, the clearance c3 is widened by one step (distances da and db) of the pin holes arranged vertically in the adjustment plate 41 or 42. Therefore, when designing the adjustment plate 41 or 42, by appropriately setting the distance corresponding to one step of the pin hole, that is, the distances da and db, the adjustment of the tension of the belt BT while the belt BT is new (that is, The position of the tail pulley TP) may be neglected, and even if the belt BT can be loosened considerably, the lowest point OBL of the orbit of trajectory OB of the bucket BA and the upper surface of the bottom plate 25 of the main body 2 of the residual preventing device 1 with adjusting means It is possible to secure a distance (clearance c3) that does not make any contact with each other.

  About the distance (distances da, db) for this one pin hole, the scale of the bucket conveyor BC, the material of the belt BT, the situation at the site (how often the tension of the belt BT can be adjusted), or Although various factors such as the type of the conveyance object are involved, it cannot be determined unconditionally, but from an experimental example, it is considered that 20 mm to 80 mm is appropriate. Moreover, in the residual prevention apparatus 1 with an adjustment means of Example 1, distance da and db are 50 mm.

  That is, as shown in FIGS. 10 to 12, the neutral position of the residual preventing device 1 with adjusting means on the bucket conveyor BC is pin holes 413, 414, 423, 424 at intermediate positions of the pin holes of the adjusting plates 41, 42. Is used as the position when the residual preventing device 1 with adjusting means is suspended from the tail pulley TP, and the lowest point OBL of the circular trajectory OB of the bucket BA at this time and the bottom plate 25 of the main body 2 of the residual preventing device 1 with adjusting means. If the clearance between the upper surface of the belt BT is c2 and the belt BT is new and looses at a high speed, the position of the pin hole used in the adjustment plates 41 and 42 as shown in FIGS. The residual prevention device 1 with adjusting means is suspended from the tail pulley TP using the pin holes 415, 416, 425, and 426.

Then, the clearance c3 at that time becomes wider than the clearance c2 by one step of the pin holes of the adjustment plates 41 and 42 (distances da and db), and the bucket BA is formed on the bottom plate 25 of the main body 2 of the residual preventing device 1 with adjustment means. The situation of contacting the upper surface can be avoided. That is, this can not only prevent damage to the bucket BA and the bottom plate 25, but also prevent malfunction of the bucket conveyor BC itself, and further prevent the risk of inducing a dust explosion.

While the belt BT is new and looses at a high speed, it is between the lowest point OBL of the circular trajectory OB of the bucket BA and the upper surface of the bottom plate 25 of the main body 2 of the residual preventing apparatus with adjustment means 1 in the state of FIGS. The clearance c3 is secured, and the position of the pin hole used in the adjustment plates 41 and 42 is lowered by one step (distances da and db) when the looseness of the belt BT is settled due to a change with time.

That is, as shown in FIG. 10 to FIG. 12, by suspending the residual preventing device 1 with adjusting means from the tail pulley TP using the pin holes 413, 414, 423, 434 in the adjusting plates 41, 42, The clearance between the lowest point OBL of the orbit OB and the upper surface of the bottom plate 25 of the main body 2 of the residual preventing device 1 with adjusting means is c2, so that it can operate in a neutral state.

In such a state, the belt BT is loosened after that, so that only the tension of the belt BT needs to be adjusted occasionally. At this time, since the residual preventing device with adjusting means 1 is suspended from the tail pulley TP, the clearance c2 is secured at a constant value.

In addition, when the residual preventing apparatus 1 with adjusting means is moved up and down inside the casing CS, the elastic body layer surrounding the upper part of the main body 2 of the residual preventing apparatus 1 with adjusting means slides on the inner side surface of the casing CS. However, as shown in FIG. 4, the elastic layer 27 has a configuration having an extension of about half the height of the main body 2 in the height direction, so that even if a part thereof is damaged by sliding, The action of filling the gap between the main body 2 and the inner surface of the casing CS can be maintained. Moreover, since there are not many opportunities to move the residual prevention device 1 with adjusting means up and down inside the casing CS, it may be considered that there is no influence on the filling action of the elastic layer 27 in reality. It is.

Depending on the situation at the site and the type of the object to be transported, the clearance may still be too wide even with c2 (FIGS. 10 to 12). In such a case, the residual prevention device 1 with adjusting means is suspended from the tail pulley TP using the lowest pin holes in the adjusting plates 41, 42, that is, the pin holes 411, 412, 421, 423. The state at this time is shown in FIG. 19 to FIG. 21, between the lowest point OBL of the circular trajectory OB of the bucket BA at this time and the upper surface of the bottom plate 25 of the main body 2 of the residual preventing device 1 with adjusting means. The clearance is a clearance c1 that is narrower than the clearance c2 by one step of the pin holes (distances da and db).

That is, on the left side surface, the pin 71 a of the pin plate 71 is inserted into the pin hole 411 at a position one step lower than the pin hole 413 of the adjustment plate 41, and the pin 71 b is positioned one step lower than the pin hole 414 of the adjustment plate 41. The pin hole 412 is inserted. On the right side, the pin 72a of the pin plate 72 is inserted into the pin hole 421 at a position one step lower than the pin hole 423 of the adjustment plate 42, and the pin 72b is positioned one step lower than the pin hole 424 of the adjustment plate 42. The pin hole 422 is inserted.

Specifically, as shown in FIGS. 19 to 21, on the left side, the pin 71 a fixed to the pin plate 71 is inserted into the pin hole 61 a of the retaining plate 61, and the moving plate 51 is further moved. It is inserted through the pin hole 51 d and further through the pin hole 411 of the adjustment plate 41. At the same time, the pin 71 b is inserted into the pin hole 61 b of the retaining plate 61, further inserted into the pin hole 51 e of the moving plate 51, and further inserted into the pin hole 412 of the adjustment plate 41.

On the right side, the pin 72 a fixed to the pin plate 72 is inserted into the pin hole 62 a of the retaining plate 62, further inserted into the pin hole 52 d of the moving plate 52, and further the pin hole 421 of the adjustment plate 42. Insert through. At the same time, the pin 72 b is inserted into the pin hole 62 b of the retaining plate 62, further inserted into the pin hole 52 e of the moving plate 52, and further inserted into the pin hole 422 of the adjustment plate 42.

In this way, the entire residual preventing device 1 with adjusting means is suspended from the tail pulley TP at a position one step higher (distances da and db) than the state shown in FIGS. As a result, the space between the lowest point OBL of the circular trajectory OB of the bucket BA and the upper surface of the bottom plate 25 of the main body 2 of the residual preventing device with adjustment means 1 is narrower than the state shown in FIGS. This gap is the clearance c1.

That is, the pin holes 411 and 412 of the adjustment plate 41 used at this time are the first pin holes from the bottom, and the pin holes 421 and 422 of the adjustment plate 42 are also the first pin holes from the bottom. The clearance is the clearance c1.

  INDUSTRIAL APPLICABILITY The present invention is greatly useful for preventing damage to a bucket conveyor, preventing defective operation, and preventing dust explosion in a system using a bucket conveyor.

  In particular, by adjusting the number of pin holes on the adjustment plate and the vertical distance between the pin holes to suit the situation of the site where the bucket conveyor is used and the type of object to be conveyed, The above-mentioned effect can be improved, and can greatly contribute to a system in which a bucket conveyor is used.

It is a longitudinal cross-sectional view of the longitudinal direction of the lower end part of the bucket conveyor BC provided with the residual prevention apparatus with a preparation means of Example 1 of this invention. It is a right view of the lower end part of the bucket conveyor BC provided with the residual prevention apparatus with a preparation means of Example 1 of this invention. It is a top view of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is a right view of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is a bottom view of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is a front view of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is the external appearance perspective view seen from the front upper right side of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is the external appearance perspective view seen from the back lower right side of the back prevention apparatus with a preparation means of Example 1 of this invention. It is an external view of the state which longitudinally cut the lower end part of bucket conveyor BC provided with the residual prevention apparatus with a preparation means of Example 1 of this invention in the transversal direction. FIG. 3 is an enlarged view of a main part of FIG. 2. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. (A) It is an external appearance perspective view of the adjustment board of the left side surface of the residual prevention apparatus with a preparation means of Example 1 of this invention. (B) It is an external appearance perspective view of the adjustment board of the right side surface of the residual prevention apparatus with a preparation means of Example 1 of this invention. (A) It is an external appearance perspective view of the moving board of the left side surface of the residual prevention apparatus with a preparation means of Example 1 of this invention. (B) It is an external appearance perspective view of the movement board of the right side surface of the residual prevention apparatus with a preparation means of Example 1 of this invention. (A) It is an external appearance perspective view of the pin board and the clasp of the left side surface of the residual prevention apparatus with a preparation means of Example 1 of this invention. (B) It is an external appearance perspective view of the pin plate and the retaining plate on the right side surface of the residual preventing apparatus with a preparation means of Example 1 of the present invention. It is explanatory drawing explaining an effect | action of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is explanatory drawing explaining an effect | action of the residual prevention apparatus with a preparation means of Example 1 of this invention. It is the EE sectional view taken on the line of FIG. It is the FF sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Residual prevention apparatus with a preparation means 2 Main body 21a Inclined front plate 21b Front plate 21c Support plate 21d Support plate 21e Elongate hole 22 Left side plate 22a Bulging part 22b Upper side 22c Supporting plate 23 Right side plate 23a Bulging part 23b Upper side 23c Supporting plate 24a Inclined rear plate 24b Rear plate 24c Support plate 24d Support plate 25 Bottom plate 25a Guide rail 25b Guide rail 25c Guide rail 25d Connector 27 Elastic body layer 3 Front frame 3a Base 3b Beam 3c Beam 3d Base 41 Adjusting plate 41a Main body 41b Convex Part 41c Convex part 41d Concave part 411 Pin hole 412 Pin hole 413 Pin hole 414 Pin hole 415 Pin hole 416 Pin hole 42 Adjustment plate 42a Body 42b Convex part 42c Convex part 42d Concave part 421 Pin hole 422 Pin hole 423 Pin hole 424 Pin hole 425 Pin hole 426 Pin hole 51 Moving plate 51a Main body 51b Convex part 51c Shaft hole 51d Pin hole 51e Pin hole 52 Moving plate 52a Main body 52b Convex part 52c Shaft hole 52d Pin hole 52e Pin hole 53 Adjustment mechanism 54 Adjustment mechanism 61 Retaining plate 61a Pin hole 61b Pin hole 61c Screw Hole 62 Clasp 62a Pin hole 62b Pin hole 62c Screw hole 71 Pin plate 71a Pin 71b Pin 71c Screw hole 71d Screw hole 71e Screw hole 72 Pin plate 72a Pin 72b Pin 72c Screw hole 72d Screw hole 72e Screw hole AN Air nozzle ASL Fixed plate ASU fixed plate BA bucket BC bucket conveyor BR bearing BT belt CL cylinder CS casing EN slot GR guide rail HA header HL oblong hole HR oblong hole OB orbit trajectory OBL lowest point RD rod SF rotating shaft TB tube T Tail pulley W monitoring window X direction b1 bolt b2 bolt b3 bolt b4 bolt c1 clearance c2 clearance c3 clearance d1 distance d2 distance d3 distance d4 d5 distance distance d6 distance d7 d8 distance distance da distance db distance

Claims (1)

In the residual prevention device for a transport object suspended from a tail pulley provided at the lower end of a bucket conveyor that stores a transport object in a plurality of buckets and continuously conveys it upward, the lowest point of the bucket trajectory Clearance adjusting means capable of changing the clearance between the top surface of the bottom plate of the residual prevention device is provided one at each of the upper middle portions of the two long sides of the residual prevention device. Each of the adjustment means for the clearance is fixed to the adjustment plate in which a plurality of pairs of pin holes, which are two horizontally drilled and fixed to the residual prevention device, are arranged in pairs, and the bearing of the rotating shaft of the tail pulley. And a moving plate having two pin holes horizontally drilled so as to correspond to the pin holes of the adjusting plate, and the pin holes of the moving plate and the adjusting plate pins in each of the two clearance adjusting means Tie holes The entire residual prevention device is hung on the tail pulley by press-fitting and fixing the pins for use, and the heads of the two connecting pins are fixed to the plate-like pin plate, Are inserted into the pin holes of the retaining plate having two pin holes horizontally drilled so as to correspond to the pin holes of the adjusting plate, and are inserted into the pin holes of the moving plate and the pin holes of the adjusting plate. The pin plate, clasp plate, moving plate, and adjusting plate are firmly fixed to each other, and a concave portion is provided in the upper center portion of the adjusting plate so as not to interfere with the rotating shaft of the tail pulley. Covers the left and right sides of the casing, the pin plate is in close contact with the clasp, the clasp is in close contact with the moving plate, and an elastic body layer surrounding the upper outer periphery of the main body of the residual prevention device with adjusting means is provided. Complete the space between the upper part of the residual prevention device with adjusting means and the inner surface of the casing. Was filled in, spaced pin plate from Tomeban by screwing the bolt in the pin plate, with adjusting means threaded holes occurring voids in the pin plate and cut plates is characterized in that it is bored residual Prevention device.

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