JP2013178072A - Solid fuel supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid fuel supply device continuously and automatically feeding solid fuel such as wood chips to a combustion device with a rational and simple structure.SOLUTION: A solid fuel supply device includes a pair of grip members 1, 1, upper stood parts 10, 10 stood on the grip members 1, 1, a grip member holding part 15 which holds the grip members 1, 1 in a free opening/closing state, an elevation wire 18 operable to elevate the grip parts 1, 1, an elevation motor 36 paying off and taking up the elevation wire, an operation wire 16 operable to open and close the grip members 1, 1, the operation motor 35 paying off and taking up the operation wire 16, a suspension base 30 with a restriction part 20, a movement driving device 50 for the suspension base 30, a moving guide part 60, and driving control means of driving the elevation motor 36 and operation motor 35.

Description

  The present invention relates to a thermal heating apparatus for agriculture and the like, and more particularly to a solid fuel supply apparatus that supplies solid fuel such as wood chips to a combustion apparatus such as a stove and a boiler.

  In the agricultural field, in general, when greenhouse cultivation is performed in an agricultural house such as a greenhouse or a plastic house, it is necessary to maintain the temperature in the house during winter or night at a temperature suitable for growing the crop. In this case, a stove, a boiler or the like using fossil fuel such as heavy oil is often used. However, the use of fossil fuels entails problems of price increases and resource depletion, and prevention of global warming due to carbon dioxide generated by the combustion of fossil fuels is a problem to be addressed immediately. To deal with these problems, countermeasures by feng shui and nuclear energy can be considered, but such countermeasures are not a countermeasure for the demand for decentralized simple heat. Therefore, for simple thermal energy, it is necessary to promote the use of biomass energy that can be circulated and regenerated continuously.

  In recent years, a pellet boiler has been developed as a combustion apparatus using biomass energy and has been put to practical use. However, in the case of ordinary pellet fuel, it is considered that the production energy and cost spent on the pellets that are heated and molded after being formed into chips are still not superior to the price of oil. In addition, wood and other fuels must be continuously supplied in preparation for the temperature drop in the morning house. However, wood chips and other fuels of various sizes are not easy to mechanically input and require manual labor. There is. Recently, however, there has been disclosed a boiler that can burn inexpensive wood-based solid fuel in a batch system for a long period of time (see Patent Document 1). Expensive.

JP 2009-68817 A

The problem to be solved regarding solid fuel fuel devices such as wood chips is not proposed as a device for automatically supplying solid fuel such as wood chips of irregular shapes to a combustion device such as a boiler. That is.
SUMMARY OF THE INVENTION The present invention has been made with the object of providing a solid fuel fuel device capable of automatically and continuously supplying solid fuel such as wood chips of irregular shape with a reasonable and simple structure to a combustion device. It is.

The present invention has the following configuration in order to achieve the above object.
According to one aspect of the solid fuel supply device according to the present invention, in the solid fuel supply device that supplies the solid fuel to the combustion device, the solid fuel supply device can be pivoted so as to be openable and closable while being attached to the pivot shaft and facing downward. A pair of gripping members provided and a lowering / lowering opening member that receives and lifts the pair of gripping members and lifts the pair of gripping members from the lower side so as to open the pair of gripping members are provided at the lower ends. An elevating chain that goes up and down through the through part provided in the member, and a leg part that holds the pivot shaft at the lower end part, and an opening part through which the elevating chain goes up and down is formed above the through part. A holding member holding part, a lifting motor for feeding and winding the lifting chain, and a base for feeding and winding the lifting chain by fixing the lifting motor, and the holding member holding part A suspension base provided with a restricting portion for restricting the raising of the gripping member holding portion at a predetermined position by contacting the upper edge of the opening, and a solid fuel storage portion supporting the suspension base And a fuel guide port for guiding movement between the fuel supply port for supplying the solid fuel to the combustion device, and a moving drive device for driving the suspension base to move by being guided by the movement guide portion The pair of gripping members to maintain the open state of the pair of gripping members opened by the lifting / lowering opening member by magnetic force by further winding up the lifting chain after the lifting of the gripping member holding portion is stopped. An opening maintaining device having an electromagnet that operates on the upper surface of the pivot shaft on the upper surface of the pivot, and the lifting mode so that the pair of gripping members can be lowered from a predetermined upper stop position. The pair of gripping members are operated so as to be extended, and when the pair of gripping members reach a required lower position, the electromagnet is turned off and is operated to close by the weight of the pair of gripping members. When the lifting / lowering motor is operated to wind up the lifting / lowering chain so that the gripping member can be lifted in a closed state, and when the suspension base moves to the upper part of the fuel inlet port by the moving drive unit, An operation control means for operating the lift motor so that the pair of gripping members are further lifted from the state in which the lifting of the pair of gripping members is stopped by the restricting portion via the gripping member holding portion to open the pair of gripping members. It comprises.

  Further, according to one embodiment of the solid fuel supply device of the present invention, the pair of gripping members in the closed state is prevented from easily opening even if a force against the weight of the pair of gripping members acts. As can be done, an elastic member is mounted between the pair of gripping members.

  Moreover, according to one form of the solid fuel supply apparatus concerning this invention, the lower part of the said holding member can be characterized by the tooth-like shape of a tooth.

  Further, according to one aspect of the solid fuel supply apparatus according to the present invention, the gripping member holding portion is provided in a cylindrical body, and the elevating chain suspended through the inside of the cylindrical body and the opening portion is It can be characterized in that it is fixed to the lifting / lowering opening member through the penetrating portion provided in the central portion of the pivot shaft.

  Moreover, according to one aspect of the solid fuel supply device of the present invention, the ascending / descending positions of the pair of gripping members in the solid fuel storage unit are set to a plurality of positions that differ depending on the drive control means. be able to.

  The solid fuel supply device according to the present invention has a special advantageous effect that solid fuel such as wood chips having irregular shapes can be continuously and automatically introduced into the combustion device with a reasonable and simple structure. Play.

It is the schematic which shows the solid fuel supply apparatus of this invention. It is the elements on larger scale which show the example of a holding member. It is the elements on larger scale which show the state which lowered | hung the holding member to the storage part of the solid fuel. It is the elements on larger scale which show the state which lowered | hung the holding member to the storage part of the solid fuel, and loosened the operation wire. It is the elements on larger scale which show the state which lifted the holding member suspension part from the storage part of the solid fuel, and closed the holding member. It is the elements on larger scale which show the state which lifted the holding member holding part to the position contact | abutted to a control part. It is the elements on larger scale which show the state which lifted the holding member holding part and opened the holding member. It is a figure which shows the state by which the storage cover of the solid fuel combustion apparatus was opened by the suspension base. It is the schematic which shows the other example of a form of the solid fuel supply apparatus of this invention. It is the elements on larger scale which show the example of the holding member in the example of a form of FIG. FIG. 10 is a partially enlarged view showing a state in which the gripping member in the embodiment of FIG. 9 is lowered to the solid fuel storage part. It is the elements on larger scale which show the holding member of the state which cut the electric current of the electromagnet in the example of a form of FIG. FIG. 10 is a partially enlarged view showing a state in which the gripping member holding part in the embodiment of FIG. It is the schematic which shows the other example of a form of the holding member of this invention. It is the schematic which shows the other form example of the holding member of this invention, and sensor installation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description will be given below of an embodiment having a common main configuration in a solid fuel supply apparatus according to the present invention based on the attached drawings (FIGS. 1 to 8).
FIG. 1 is a schematic diagram showing an outline of a solid fuel supply apparatus according to the present invention. It shows a state before transporting a biomass solid fuel such as a wood chip (hereinafter, described as “chip” as a specific example). The outline of the solid fuel supply device in the present embodiment is as follows. The gripping members 1 and 1 suspended from the suspension base 30 to which the operation motor 35 and the lifting motor 36 are fixed via the gripping member holding portion 15 are closed. After grabbing the chip from the storage unit 200 and transporting the suspension base 30 together with the suspension base 30 to the top of the fuel inlet 110 by spreading the gripping members 1 and 1, the chip is dropped, and the suspension base is dropped after dropping. The operation of returning 30 to the original position is repeated. The details will be described below.

  As shown in FIGS. 1 and 2, reference numerals 1 and 1 denote a pair of gripping members for gripping the solid fuel. The gripping members 1 and 1 are suspended by a gripping member holding portion 15 which will be described later so that the gripping members 1 and 1 can be opened and closed while being pivotally mounted on the pivot shaft 5 and facing downward. The gripping members 1 and 1 have a U-shape that is opened downward in a side view at an initial position before the start of chip conveyance. As shown in FIG. 2, the gripping members 1 and 1 are each formed in a band shape for scooping up the chip. The lower part 2 of the gripping members 1 and 1 is formed in a toothed shape so as to bite into the gap between the chips and facilitate the scooping of the chips. In addition, even if the shape of the holding members 1 and 1 is not a strip having the same width, the width of the lower portion 2 can be made wider than the upper portion or conversely narrowed. Moreover, although the shape of the holding members 1 and 1 is U-shaped opening in FIG. 1, FIG. 2, etc., you may curve so that it may open to a semicircle shape. Further, the number of the teeth of the jagged teeth can be selected from an arbitrary number, for example, from about 2 to about 10, depending on the width of the gripping members 1 and 1 and the size of the chip.

  When the gripping members 1 and 1 are lifted by the gripping member holding portion 15, the gripping members 1 and 1 rotate downward due to their own weight. At this time, when the own weight of the gripping members 1 and 1 is lighter than the chip, the bites 4 and 4 can be placed on the upper surface because the bite into the chip is insufficient. The gripping members 1 and 1 are equipped with elastic members such as springs and rubber so that the gripped tip will not open during movement due to the force against the weight of the gripping member and will not fall during movement. Can be made. In this embodiment, a spring 3 is used. In FIGS. 1 and 2, etc., the surfaces of the gripping members 1 and 1 that are not in the rotating direction are open. However, even if a cover such as a net is formed on the surfaces to the extent that the chips are not hindered. Good.

  As shown in FIGS. 1 and 2, the gripping member 1 is opened on the upper part of a pair of gripping members 1, 1 when the gripping member 1 is rotated inward, and the gripping member 1 is rotated when the gripping member 1 is rotated outward. 1 and 10 are erected from the vicinity of the pivot shaft 5, respectively. The upper portions of the upper standing portions 10 and 10 are at positions that reach the vicinity of the center of the holding member holding portion 15 in the vertical direction. The upper standing portions 10 and 10 may adopt a shape such as a semicircular shape or a rod shape in addition to a rectangular shape as long as the upper portion is located in the vicinity of the side outlet holes 17 and 17.

  The gripping member holding portion 15 has a bowl shape extending vertically, and an operation wire 16 described later passes through the inside thereof. The operation wire 16 is bifurcated inside, passes through side outlet holes 17 formed on the side of the gripping member holding portion 15, changes its direction laterally with respect to the gripping member holding portion, and stands upright. It is being fixed to the upper part of the parts 10 and 10. FIG. The upper standing portions 10 and 10 are rotated inward and outward with respect to the gripping member holding portion 15 by the feeding and winding of the operation wires 16 and 16, and the gripping members 1 and 1 are simultaneously opened and closed.

  The lower ends of the operation wires 16 and 16 are fixed to the upper portions of the upper standing portions 10 and 10. Thus, when opening the gripping members 1, 1, the pivot shaft serves as a fulcrum, and the gripping members 1, 16 are connected with the operation wires 16, 16 directly to the gripping members 1, 1 with a force lighter than the pulling force. 1 can be opened.

  The upper end of the gripping member holding part 15 is in contact with the lower end of the restricting part 20 described later at the upper stop position as shown in FIGS. The holding member holding portion 15 operates in the vertical direction so that the lower end of the lifting wire 18 is fixed and the holding members 1 and 1 are moved up and down. A sensor A for sensing a contact pressure or the like and driving a driving device 50 to be described later is provided at the joint between the holding member holding portion 15 and the regulating portion 20. The holding member holding portion 15 may be a rod-like body. In this case, the side outlet holes 17 and 17 are, for example, a horizontal ring that holds the holding member by passing the operation wires 16 and 16 through the inside of the ring. The direction is changed from the portion 15 in the lateral direction and fixed to the upper standing portions 10 and 10.

  The restricting portion 20 is formed of a cylindrical body that extends downward from the bottom surface of a suspension base 30 described later. The restricting portion 20 stops the raising of the gripping member holding portion 15 at a predetermined position by contacting the upper end portion of the gripping member holding portion 15, or holds the gripping member in a slit (not shown) provided in the movement guide portion 60 described later. It has a function of preventing the holding unit 15 from coming into contact. The restricting portion 20 may be a rod-like body as long as the raising of the gripping member holding portion 15 can be stopped.

  The suspending base 30 is formed with a restricting portion 20 below the bottom surface, and a holding member holding portion 15 fixed by a lifting wire 18 is suspended below the restricting portion 20. On the suspension base 30, an operation motor 35 and an elevating motor 36 are fixed so as to abut the pulleys. The suspension base 30 is moved horizontally as will be described later, but wheels 39a and 39b are provided as shown in FIG. 1 to make the movement smooth.

  The operation motor 35 feeds and winds up the operation wire 16 which is fixed at the lower ends to the upper standing portions 10 and 10 of the gripping members 1 and 1 and operates in the vertical direction so as to open and close the gripping members 1 and 1.

  The lifting motor 36 feeds and winds the lifting wire 18 that has a lower end fixed to the gripping member holding portion 15 and operates in the vertical direction so as to lift and lower the gripping members 1 and 1 through the gripping member holding portion 15.

  These operation motor 35 and elevating motor 36 are driven by drive control means (not shown).

  The drive control means drives the elevating wire 18 and the operating wire 16 to be fed out in synchronization with the elevating motor 36 and the operating motor 35 so that the gripping members 1 and 1 can be lowered from the predetermined upper stop position in the open state. Next, when the gripping members 1, 1 are stopped at a required lower position such as a solid fuel reservoir, the operation motor 35 is driven to feed out the operation wire 16 so as to be closed by its own weight. When the operation wire 16 is unwound, the elevating motor 36 and the operation motor 35 are synchronized to drive the elevating wire 18 and the operation wire 16 so that the gripping members 1 and 1 can be raised in the closed state. Let When the gripping members 1, 1 are stopped by the restricting portion 20 via the gripping member holding portion 15, and the suspension base 30 is moved to the upper part of the fuel inlet port 110 by the movement drive device 50 described later, the gripping member The operation motor 35 is driven so as to further wind up the operation wire 16 so that 1 and 1 are opened. As specific drive control means, the rotational speed and rotational speed of the operation motor 35 and the lifting motor 36 are synchronized by using conventional analog control or digital control using a microcomputer, using a sensor, a tachometer, a servo motor, or the like. Or the drive timing can be adjusted.

  Next, a configuration for supporting and horizontally moving the suspension base 30 will be described.

  The driving device 50 for movement is located in the below-mentioned movement guide part 60 with the suspension base part 30. FIG. As an example of the moving drive device 50, a drive motor, a cylinder device, or the like can be used. The moving drive device 50 is hung by being guided by a moving guide portion described later based on the fact that the gripping member holding portion 15 is lifted by the lift motor 36 and abuts against the lower end of the motor restricting portion 20 and is detected by the sensor A. The base 30 is driven to move toward the combustion device. When the suspension base 30 is moved, the drive motor is fixed to the suspension base 30 and moved by a gear, the drive motor is fixed to the movement guide 60 and moved by a chain, or the horizontal direction of the air cylinder. It can be moved by movement.

The movement guide part 60 is formed with a slit (not shown) extending in the longitudinal direction, and the restriction part 20 formed on the suspension base 30 moves in the horizontal direction between the slits. In addition, the movement guide part 60 may be supported by a pillar or may be hung from the ceiling. Moreover, the movement guide part 60 may be one or two rails.
Sensors B and C for sensing the position of the suspension base 30 are installed in the movement guide unit 60. The sensor B senses that the suspension base 30 is at the upper stop position, and activates the drive control means to drive the operation motor 35 and the lifting motor 36. The sensor C senses that the suspension base 30 has reached or approached the position of the fuel inlet 110 and activates the drive control means so that the suspension base 30 returns to the upper stop position after a certain period of time. It becomes a means for driving the movement drive device 50. Note that the movement drive device 50 may be driven by sensing the end of winding of the operation motor 35.

  Next, an embodiment for opening and closing the storage lid 102 and the shut-off lid 105 of the fuel storage unit 101 of the chip combustion apparatus 100 will be described with reference to FIGS. 1 and 8. In the present embodiment, the storage base 102 and the shut-off cover 105 of the fuel storage unit 101 are opened and closed by the suspension base 30 by an operation in the horizontal direction by the action of the movement drive device 50. Accordingly, the storage lid 102 and the blocking lid 105 can be opened and closed without using a special device. The details will be described below.

  As shown in FIG. 1, the moving guide portion 60 is formed with a holding portion 71 that holds a rotating bar 70 that rotates when a portion of the suspension base 30 comes into contact with the suspension base 30 as it approaches the tip drop position. Has been. Below the holding portion 71, a horizontal bar 72 that is pivotally attached to the rotary bar 70 and moves downward as the rotary bar is pushed by the approach of the suspension base 30 and rotates, and below the horizontal bar 72 A vertical bar 74 is formed to convey the change in position in the direction. The operation of the horizontal bar 72 can be easily realized by applying a parallel four-bar link mechanism. The storage lid 102 of the fuel storage unit 101 is pivotally supported so that the downward movement of the vertical bar 74 causes the push-down portion 103 formed obliquely above the opening / closing axis of the storage lid 102 to be pressed down to open. (FIG. 8). The storage lid 102 is closed by returning the horizontal bar and the vertical bar to the original position by the suspension base 30 moving toward the initial position by the spring 76 connected between the horizontal bar 72 and the movement guide unit 60. Maintained.

  As shown in FIGS. 1 and 8, an open / close wire 106 fixed to the shut-off lid 105 of the fuel storage unit 101 of the combustion apparatus 100 is connected to the suspension base 30. The shut-off lid 105 lowers as the suspension base 30 moves to the tip drop position, shuts off the fuel storage portion 101 and the combustion chamber 104, while it rises as the suspension base 30 moves to the initial position and fuel It operates so that the chip of the storage unit 101 can be dropped into the combustion chamber 104. It is desirable to adjust the length of the open / close wire 106 and the position of the rotary bar so that the shut-off lid 105 is opened after the storage lid 102 is closed so that the fire in the combustion chamber 104 does not go out of the storage lid 102.

  Next, the operation of the solid fuel supply apparatus having the above configuration will be described.

  First, when a switch (not shown) is turned on, when the sensor A senses the presence of the suspension base 30 at the upper stop position of the chip storage unit 200, the operation motor 35 provided on the suspension base 30 The elevating motor 36 rotates, and the operation wire 16 and the elevating wire 18 fixed to each motor are fed out at the same speed. As a result, the gripping member holding portion 15 descends with the gripping members 1 and 1 being expanded. When the lower portions 2 and 2 of the gripping members 1 and 1 stop at a position where they contact the chip storage portion 200, the operation motor 36 continues to feed the operation wire 16 outward from the side outlet holes 17 and 17 provided in the gripping member holding portion 15. . As a result, the operation wires 16 and 16 are loosened outside the lateral outlet holes 17 and 17. After the operation wires 16 and 16 are drawn out from the side holes 17 and 17 to such an extent that the upper standing portions 10 and 10 are opened outward and the gripping members 1 and 1 are closed, the operation motor 35 is temporarily turned on. When stopped, the operating motor 35 and the lifting motor 36 start winding the operating wire 16 and the lifting wire 18 at the same speed. When the gripping member holding portion 15 is gradually pulled up, the gripping members 1 and 1 are closed so that the lower portions 2 of the gripping members 1 and 1 are in contact with each other by the weight of the gripping members 1 and 1 and the weight 4 placed as necessary. Is gripped.

  When the gripping member holding part 15 is lifted in a state of gripping the chip and comes into contact with the lower end of the support column 20, when the sensor A senses, the moving drive unit 50 moves the suspension base 30 to the fuel inlet part 110. Start. When the suspension base 30 moves to a position sensed by the sensor C, the operation motor 35 starts to wind the operation wire 16, and the operation wires 16, 16 are moved from the side holes 17, 17 to the holding member holding unit 15. It is taken inside. Accordingly, the upper standing portions 10 and 10 that have spread outward with respect to the gripping member holding portion 15 stand upright so as to be parallel to the gripping member holding portion 15. As the upper standing portions 10 and 10 stand upright, the gripping members 1 and 1 open, and the gripped chip falls. The operation of the driving device for movement 50 is started so that the hanging base 30 returns to the upper stop position after a predetermined time for winding up the entire operation wire 16 has elapsed.

  Next, the operation of the storage lid 102 and the blocking lid 105 by the hanging base 30 will be described.

  When the suspension base 30 approaches the fuel input port 110 by the driving device 50 for movement, the upper part of the rotation bar 70 inclined by a part of the suspension base 30 is pushed up in the upright direction, and the rotation bar 70 gradually stands upright. Accordingly, the horizontal bar 72 pivotally attached to the rotary bar 70 is gradually pushed down, and the vertical bar 74 is lowered as the horizontal bar 72 is lowered. As the vertical bar 74 is lowered, the push-down portion 103 formed obliquely above the storage lid 102 is pushed down, and the storage lid 102 is opened (FIG. 8). In the state where the storage lid 102 is opened, the combustion chamber 104 and the fuel storage portion 101 are shielded by the shut-off lid 105, but as the suspension base 30 returns to the initial position, the rotating bar 70 and the horizontal bar 72 are moved by the force of the spring 76. When the storage lid 102 is closed and the storage lid 102 is closed, the shut-off lid 105 is gradually opened by the opening / closing wire 106 connected to the suspension base 30 and the chip stored in the fuel storage unit 101 is moved into the combustion chamber 104. Dropped.

  When the suspension base 30 returns to the upper stop position, the sensor B senses it, and the operation of the operation motor 35 and the lifting motor 36 is started again by the drive control means.

The best mode of the solid fuel supply apparatus according to the present invention will be described below in detail with reference to the accompanying drawings (FIGS. 9 to 13). In the figure, the parts denoted by the same reference numerals as those in FIGS.
FIG. 9 is a schematic diagram showing an outline of a solid fuel supply apparatus according to the present invention. It shows a state in which the grasped chip is grasped and conveyed. The outline of the solid fuel supply device in the present embodiment is as follows. The gripping members 1 and 1 suspended from a suspension base 130 provided with a lifting motor (not shown) via a lifting chain 19 which is an example of a lifting chain. The chip is held and lifted by closing the chip storage unit 200 and conveyed to the upper part of the fuel input port 110 together with the hanging base 30 by a driving device for movement (not shown). The operation of spreading the chip and dropping the chip and then returning the suspension base 130 to the upper part of the chip storage section 200 is repeated. The details will be described below.

  FIG. 10 is a perspective view showing a state in which the pair of gripping members 1 and 1 are opened. In this embodiment, the lift chain 19 that extends in the vertical direction receives and lifts the pair of gripping members 1, 1 and lifts and lifts the pair of gripping members 1, 1 so as to open the pair of gripping members 1, 1. A member 6 is provided. The elevating chain 19 moves up and down through the through portions 7 provided in the pair of gripping members 1 and 1. The lifting chain 19 as a suspension member can be prevented from being deformed by twisting or winding up by adopting the chain, and a stable repeated operation can be realized.

  As shown in FIGS. 10 and 11, the lifting / lowering opening member 6 of the present embodiment is a rectangular plate formed so as to support the lower surface of the portion in which the pair of gripping members 1, 1 are opened and become substantially horizontal. It is. And the protrusion parts 6a and 6a which protruded upward from the pair of edge parts in alignment with the pivot shaft 5 so that it may touch the lower surface of a pair of holding members 1 and 1 are formed. Thus, by making the raising / lowering opening member 6 upward U-shaped, it prevents interference with the pivot shaft 5 when it is raised, and exerts a force acting on the raising / lowering opening member 6 on the lower surfaces of the pair of gripping members 1, 1. Can be balanced. In addition, the shape of the protrusion 6a is not a streak like the present embodiment, but may be provided in the form of dots at the four corners of the rectangular lifting / lowering member 6, for example.

  The elevating chain 19 has a lower end fixed to the central portion of the elevating / releasing member 6, and a penetrating portion 7 formed from the elevating / releasing member 6 to the central portion of the pivot shaft 5 and a center portion of a gripping member holding portion 115 described later. The upper end is connected to a lifting motor (not shown) provided in the suspension base 30.

  The elevating chain 19 is raised and lowered by the winding and unwinding of the elevating motor. With this movement, the lifting / lowering opening member 6 can raise or lower the pair of gripping members 1 and 1 in the open state shown in FIG. 11 and the closed state shown in FIG. Further, as shown in FIG. 13, the lifting / lowering opening member 6 is further lifted by lifting the lifting / lowering chain 19 after the gripping member holding portion 115 stops rising by the restricting portion 20. That is, the pair of gripping members 1 and 1 in the closed state shown in FIG. 12 are pushed upward through the protrusions 6a and 6a to be opened. Thus, not only can the pair of gripping members 1, 1 be raised or lowered by the lifting / lowering opening member 6, but the gripping members 1, 1 can be simultaneously opened by winding up one lifting chain 19. Accordingly, the structure and the control can be made simpler.

  The shape of the lifting / lowering opening member 6 can be appropriately selected as long as the force generated by the lifting of the lifting / lowering chain 19 can be applied to each of the pair of gripping members 1 and 1. A disk shape, an elliptical plate shape, or a rod shape may be sufficient. The protrusions 6a and 6a can adopt various shapes as long as the force acting on the lifting and lowering opening member 6 can be transmitted to the pair of gripping members 1 and 1. For example, a heat-resistant roller can be provided instead of the protrusion 6a. By adopting such a shape, the resistance between the pair of gripping members 1, 1 and the lifting / lowering opening member 6 can be reduced, and the opening / closing operation of the pair of gripping members 1, 1 can be made smooth.

  As shown in FIGS. 10 to 13, the gripping member holding portion 115 includes a pair of gripping members 1, a leg portion 115 a that holds both ends of the pivot shaft 5, and a lifting chain 19 that passes above the penetrating portion 7. A cylindrical portion 115b that moves up and down is provided, and an upper portion of the cylindrical portion 115b is formed upright by forming a cylindrical opening 115c. By forming the cylindrical opening 115c, a step 115d with which the lower end of the restricting portion 20 abuts is formed inside. The gripping member holding portion 115 is further lifted at the position after the pair of gripping members 1 and 1 closed by the lifting and lowering opening member 6 are lifted and the stepped portion 115d comes into contact with the regulating portion 20 to stop the lifting. The opening member 6 is pulled up to open the gripping members 1 and 1.

  The gripping member holding portion 115 holds the pair of gripping members 1 and 1 at the position of the pivot shaft 5 and has an upper edge portion provided with an opening 115 c through which the lifting chain 19 contacts the restriction portion 20. If so, the shape can be selected as appropriate. The leg portion 115a may be one, or may be fixed near the center portion of the pivot shaft 5. The opening 115c may be supported by a rod-shaped leg portion as a circular ring without having a cylindrical portion.

  As shown in FIG. 9, the suspension base 130 has a box shape, and serves as a base for feeding and winding the lifting chain 19, and the upper edge of the opening 115 c of the gripping member holding portion 115 is in contact with the gripping member. A restricting portion 20 is provided to restrict the raising of the holding portion 115 so as to stop at a predetermined position. The suspension base 130 includes an elevating motor (not shown) that moves the elevating chain 19 up and down and a moving drive device (not shown). The driving device for movement is guided to a moving guide portion 160 that supports the suspension base portion 130 and guides the movement between the solid fuel storage portion 200 and the fuel input port portion 110 that supplies the solid fuel to the combustion device 100. Then, the suspension base 130 is driven to move. In addition, as this drive device for movement, it is good also as a self-propelled type, and it is good also as a method pulled with a wire.

  On the upper part of the suspension base 130, a non-contact sensor receiving portion 131, for example, a capacitance sensor receiving portion, is provided. The sensor receiving portion 131 is sensed by the sensor portions P1, P2, P3, S1 and S2 provided at regular intervals on the movement guide portion 160, and the movement drive device, the lifting motor and the storage lid 102 of the fuel input port 110, An opening / closing device (not shown) of the blocking lid 105 is operated. A sensor unit may be provided on the upper part of the suspension base 130 and a sensor receiving unit may be provided at the above position of the movement guide unit 160.

  The sensor units P1, P2, and P3 sense the position of the suspension base 130 at the upper part of the solid fuel storage unit 200. S1 and S2 sense the position of the suspension base 130 in a state where the chip is being transported and a state after the chip is dropped. When the position of the suspension base 130 is sensed by each sensor, control according to each position is performed.

  At the positions of the sensor parts P1, P2 and P3, the order of stopping the suspension base 130, the number of times of stopping, etc. are controlled, the lifting motor is operated, the pair of gripping members 1, 1 are lowered for a certain time, and then the electromagnet described later It can be turned off and then actuated to rise. It is also possible to perform control such as stopping once each in the order of P1, P2, and P3 or stopping 5 times at P1 and then stopping 5 times at P2. By such control, the chip of the solid fuel storage unit 200 can be grasped without significant deviation. Thereby, solid fuel can be stably supplied to a combustion apparatus.

  In the sensor units S1 and S2, the suspension base 130 is stopped and moved, and the storage lid 102 and the shut-off lid 105 of the fuel storage unit 101 of the chip combustion apparatus 100 are opened and closed. For example, when the suspension base 30 that suspends the pair of gripping members 1 and 1 holding the chip is detected at the position S1, the blocking lid 105 is closed, and then the storage lid 102 is opened. When the suspension base 30 is detected at the position S2, the horizontal movement of the suspension base 30 is stopped, the lifting chain 19 is wound up by the lifting motor, the lifting release member 6 is lifted, and the pair of gripping members 1, 1 are moved. Operate so that it is released and the chip is dropped. When the pair of gripping members 1 and 1 are fully opened, the suspension base 130 starts moving to a position detected by P1, P2 or P3, which is the lowered position of the pair of gripping members 1 and 1 again. When the movement starts, the storage lid 102 is closed. When the suspension base 130 is detected in S1, the operation can be performed so that the blocking lid 105 is opened.

  The movement guide unit 160 is a beam member spanned between the solid fuel storage unit 200 and the upper part of the chip combustion apparatus 100. For example, in the embodiment shown in FIG. (Not shown) is formed. Along the slit, the suspension base 130 is moved in the horizontal direction along the movement guide portion 160 by the power of a moving drive device such as a self-propelled drive motor or a drive motor that winds a wire.

  As shown in FIG. 13, in order to maintain the opened state of the pair of gripping members 1 and 1 opened by the lifting and lowering opening member 6 by further lifting the lifting and lowering chain 19 after the lifting of the gripping member holding portion 115 is stopped. An opening maintaining device 9 including an electromagnet 8 a that operates on the upper surface of the pivot shaft 5 on the upper surface of the pair of gripping members 1, 1 is provided. This open maintaining device 9 is provided with an electromagnet 8a on one of the gripping members 1 and 1 and an electromagnet support 8b on the other gripping member. As long as the opening maintaining device 9 is in operation, the pair of gripping members 1 and 1 are held by their own weights, the weights 4 and 4 placed on the upper surface thereof, and the pair of gripping members 1 and 1 by the springs 3. The open state can be maintained against the force in the closing direction of the members 1 and 1. Then, as shown in FIG. 12, by cutting off the current to the electromagnet 8a, the chip can be gripped by the pair of gripping members 1 and 1 in the closing direction immediately by the above-mentioned force.

  The operation control means can be controlled as follows, for example. First, the lifting / lowering chain 19 is operated by the lifting / lowering motor so as to be lowered from the upper stop position of the sensor part P1, P2 or P3 with the pair of gripping members 1 and 1 being opened (FIG. 11). Next, when the pair of gripping members 1 and 1 reach a position where they can descend and come into contact with the chip, the current to the electromagnet 8a constituting the opening maintaining device 9 is cut off, and the weight and weight of the gripping members 1 and 1 are reduced. Then, the pair of gripping members 1 and 1 are operated to be closed by the spring 3 (FIG. 12). Then, when the pair of gripping members 1, 1 are closed, the lifting motor is operated so that the pair of gripping members 1, 1 can be lifted by the lifting / lowering opening member 6, and the lifting chain is wound up. The pair of gripping members 1, 1 are operated so as to stop the ascent by contacting the regulating portion 20 at the opening 150 a of the gripping member holding portion 150. After the pair of gripping members 1 and 1 are closed, the ascent is stopped, and then the driving device for movement is operated so that the suspension base 130 moves to the upper part of the fuel inlet 110. When the suspension base 130 is detected in S1, the blocking lid 105 is closed, and then the storage lid 102 is opened. When the suspension base 130 is detected in S2, the movement of the suspension base 30 is stopped, the lifting chain 19 is wound up by the lifting motor, the lifting release member 6 is lifted, and the pair of gripping members 1, 1 are opened to form a chip. Is actuated to descend (FIG. 13). When the pair of gripping members 1 and 1 are fully opened, the gripping members 1 and 1 are actuated so as to move to the position P1, P2 or P3 which is the lowered position again. When the movement is started, the storage lid 102 is closed, and when the suspension base 130 is detected in S1, the blocking lid 105 is driven to open.

Next, another embodiment according to the solid fuel gripping mechanism constituted by the pair of gripping members 1 and 1 will be described with reference to FIG.
In this embodiment, the weight 4 as a separate body is not fixed to the gripping member 1, but the gripping member 1 itself is provided with a heavy material. That is, as shown in FIG. 14, the entire gripping member 1 is made of a thick material, and by its own weight, the gripping member 1 formed in an L shape automatically rotates with a stronger force in the closing direction. Energized as follows. According to this, it is possible to more reliably and appropriately hold and hold the solid fuel having irregular sizes.

  Furthermore, in the embodiment shown in FIG. 14, the spring 3 is provided so as to be stretched slightly above the pivot shaft 5 when the pair of gripping members 1, 1 are opened to the maximum. According to this, the tension | tensile_strength of the spring 3 acts so that a pair of holding member 1 and 1 may maintain the open state, and it can assist maintaining the state stably. On the other hand, when the pair of gripping members 1 and 1 are rotated so as to be closed, it acts to maintain the closed state, and it is possible to assist in stably maintaining the state. That is, according to this spring 3, operation | movement of a pair of holding member 1 and 1 can be stabilized, and the operating efficiency of an apparatus can be improved.

Next, based on FIG. 15, the example concerning the installation of a pair of holding members 1a, 1b and sensors provided for controlling the operation thereof will be described.
Reference numeral 120 denotes an electromagnet OFF sensor, which is fixedly disposed on the upper surface protrusion 1as of one gripping member 1a. As this electromagnet OFF sensor 120, for example, a limit switch can be used. Reference numeral 121 denotes a slide pin, which is arranged so as to be slidable in the vertical direction by being inserted into a through-hole provided in the root portion of one gripping member 1a. The slide pin 121 is disposed below the electromagnet OFF sensor 120.

  According to this, as shown in FIG. 15, when the slide pin 121 is pushed and slid upward by the lifting / lowering release member 6, the slide pin 121 is in a state of pushing the button of the electromagnet OFF sensor 120. ing. When the pair of gripping members 1a and 1b are lowered and come into contact with the stored chip fuel and the lifting chain 19 is further extended, the lifting and lowering opening member 6 supports the pair of gripping members 1a and 1b. The lifting / lowering release member 6 is separated from the pair of gripping members 1a, 1b by loosening (see the lifting / lowering release member indicated by the two-dot chain line in FIG. 15). At this time, the slide pin 121 is slid downward by gravity and the return spring force of the button, and a signal is output by the electromagnet OFF sensor 120. In response to the signal from the electromagnet OFF sensor 120, the elevating motor 36 is stopped and the attracting force due to the magnetic force of the electromagnet 8a is released so that the feeding of the elevating chain 19 is stopped.

  As described above, since the electromagnet OFF sensor 120 is provided, it is possible to appropriately determine the timing at which the lifting of the lifting chain 19 is stopped, and the chip fuel can be efficiently supplied to the combustion device 100. That is, as compared with the case where the control is performed at regular time intervals, it is possible to eliminate a useless operation of the lifting chain 19 and the like, and the operation can be efficiently and reliably performed with a minimum driving operation. Further, the attracting force of the electromagnet 8a can be released in a timely manner, and when the pair of gripping members 1a and 1b are pulled up by the elevating chain 19, the pair of gripping members 1a and 1b rotate in a direction to close appropriately with their own weight. The chip fuel can be operated so as to be preferably gripped.

  Reference numeral 140 denotes an electromagnet ON sensor, which is fixedly disposed on the upper surface protrusion 1bs of the other gripping member 1b. For example, a limit switch can be used as the electromagnet ON sensor 140. The electromagnet ON sensor 140 is in a positional relationship facing the upper surface protrusion 1as of one gripping member 1a, and the electromagnet ON sensor 140 and the upper surface are accompanied by a rotation operation that opens and closes the pair of gripping members 1a and 1b. It is in a positional relationship with the protrusion 1as.

  According to this, when the lifting chain 19 is wound up and the button of the electromagnet ON sensor 140 is pressed by the upper surface protrusion 1as, a signal is output from the electromagnet ON sensor 140. By this signal, the electromagnet 8a is actuated so that the pair of gripping members 1a and 1b can be reliably maintained in an open state when descending to hold the chip fuel. According to this, the opening / closing operation | movement of a pair of holding member 1a, 1b can be controlled appropriately, and chip | tip fuel can be hold | gripped and can be sent reliably and appropriately.

Reference numeral 150 denotes a height sensor, which is fixed to the lower surface of the suspension base 130, and the lower surface of the restricting portion 20 and the sensor surface are arranged at the same height. As the height sensor 150, for example, a capacitance sensor can be used. Reference numeral 151 denotes a sensor receiving portion, which is provided at the upper end portion of the holding member holding portion 115 and is provided so that the height sensor 150 can output a signal when approaching the height sensor 150.
According to this, when the pair of gripping members 1a and 1b are raised to a predetermined height so that the pair of gripping members 1a and 1b can move to the fuel device 100 while maintaining the state of gripping the chip fuel. The winding operation of the elevating chain 19 can be stopped.

By the way, when the pair of gripping members 1a and 1b according to the present embodiment is most opened as shown in FIG. 15, the distance between the lower ends of the pair of gripping members 1a and 1b is gradually increased downward. Is formed. That is, the nail | claw part which a pair of holding member 1a, 1b opens and contacts chip fuel has spread in the taper shape.
According to this, it becomes easy to scrape the chip fuel suitably, it can be properly scooped up and gripped, and the chip fuel can be reliably and appropriately sent to the combustion device 100.

Next, a configuration example accompanying the above-described configuration example of the solid fuel supply apparatus will be briefly described.
First, about the combustion apparatus 100 using this solid fuel supply apparatus, the rooster can be made into a cage shape, and chip fuel can be put into the cage-like rooster. In the embodiment of the present invention described above, it can be assumed that the chip fuel has an elongated shape with an average length of about 10 cm, for example. In the case where the chip fuel is relatively large as such, the cage shape can be provided in the form of a coarse grid. By using such a cage-shaped rooster, the air permeability of the combustion air can be increased, so that the combustion efficiency can be suitably improved.

  For example, the shielding lid 105 is not limited to open / close in the vertical direction, but may be opened / closed by sliding in the horizontal direction. The shielding lid 105 and the storage lid 102 are not opened / closed by a single door, but by a double door opening / closing method that is opened / closed by two doors, or a rotary system that has more shielding plates. Also good. That is, there is no particular limitation as long as it can be appropriately blocked so that smoke can flow out and backfire can be prevented.

  Furthermore, the solid fuel storage unit 200 in which the chip fuel is stored is not limited to the one in which the pair of gripping members 1 and 1 can be displaced as in the present embodiment (see FIG. 9). That is, the solid fuel storage unit 200 and the position where the pair of gripping members 1 and 1 descend may be relatively changed, and the solid fuel storage unit 200 may be moved. For example, the solid fuel storage unit 200 may be rotated intermittently or continuously as a bottomed cylindrical storage tank. This also lowers the pair of gripping members 1 and 1 more uniformly over the entire plane of the solid fuel reservoir 200 where the chip fuel is deposited, and grips the chip fuel more uniformly and supplies it to the combustion apparatus 100. be able to.

  As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Gripping member 2 Lower part of Gripping member 3 Spring 4 Weight 5 Pivoting shaft 6 Lifting release member 6a Protrusion 7 Passing part 8a Electromagnet 8b Electromagnet support 10 Upper standing part 15 Gripping member holding part 16 Operation wire 17 Side outlet hole 18 Lifting wire 19 Lifting chain 20 Restricting part 30 Suspension base 35 Operation motor 36 Lifting motor 50 Moving drive unit 60 Moving guide unit 100 Combustion device 101 Fuel storage unit 102 Storage lid 104 Combustion chamber 105 Shut-off lid 110 Fuel input port 115 Holding member holding part 115a Holding member holding part leg part 115b Holding member holding part cylinder part 115c Holding member holding part opening 115d Holding member holding part step part 130 Hanging base 131 Sensor receiving part 160 Movement guide part 200 Solid fuel storage part P1 sensor part P2 sensor part P3 sensor part S1 sensor part S2 Part

Claims (5)

In a solid fuel supply device for supplying solid fuel to a combustion device,
A pair of gripping members pivotally provided so as to be opened and closed in a state of being pivotally attached to the pivot shaft and facing downward;
The lower end portion is provided with a lifting / lowering release member that receives and lifts the pair of gripping members and lifts the pair of gripping members from the lower side so as to open the pair of gripping members, and passes through the through portions provided in the pair of gripping members. Elevating chains that move up and down
A gripping member holding portion provided with a leg portion that holds the pivot shaft at a lower end portion, and an opening portion through which the elevating chain passes up and down is formed above the penetrating portion;
A lifting motor for feeding and winding the lifting chain;
The raising / lowering motor is fixed to be a base for feeding and winding of the raising / lowering chain, and the upper edge portion of the opening of the holding member holding portion is brought into contact with the raising member to stop the raising of the holding member holding portion at a predetermined position. A suspension base provided with a restricting portion for restricting to,
A movement guide unit that supports the suspension base and guides the movement between the solid fuel storage unit and the fuel input port that supplies the solid fuel to the combustion device;
A driving device for movement that is driven by the moving guide portion to drive the suspension base; and
After the lifting of the gripping member holding portion stops, the upper surfaces of the pair of gripping members are maintained in order to maintain the open state of the pair of gripping members opened by the lifting / lowering release member by further winding the lifting chain. An open maintenance device comprising an electromagnet that operates at an upper portion of the pivot shaft;
When the pair of gripping members are opened, the lifting and lowering motor is operated to extend the lifting chain so that the pair of gripping members can be lowered from a predetermined upper stop position. The electromagnet is turned off and operated to close by the weight of the pair of gripping members, and the lifting motor is operated to wind up the lifting chain so that the pair of gripping members can be lifted in the closed state. When the suspension base is moved to the upper part of the fuel input port by the driving device, the lifting chain is moved from the state in which the pair of gripping members are stopped from being lifted by the restricting portion via the gripping member holding portion. And an operation control means for operating the lifting motor so that the pair of gripping members open. Fuel supply system.   An elastic member is mounted between the pair of gripping members so that the pair of gripping members in the closed state can be prevented from easily opening even when a force against the weight of the pair of gripping members is applied. The solid fuel supply apparatus according to claim 1.   3. The solid fuel supply device according to claim 1, wherein a lower portion of the gripping member has a jagged tooth shape. 4.   The gripping member holding portion is provided in a cylindrical body, and the lifting chain suspended through the inside of the cylindrical body and the opening passes through the through portion provided in the central portion of the pivot shaft. The solid fuel supply device according to any one of claims 1 to 3, wherein the solid fuel supply device is fixed to a lifting and lowering opening member.   5. The solid fuel supply device according to claim 1, wherein ascending / descending positions of the pair of gripping members in the solid fuel storage unit are set to a plurality of positions that differ depending on the drive control unit. .

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