An easy-to-clean bucket-wheel machine coal drop bucket

Abstract

The utility model discloses an easy-to-clean bucket wheel machine coal drop bucket, including coal drop bucket body and inner angle cleaning device, and the inner angle cleaning device includes the outer frame of being installed on the coal drop bucket body and the one-way axle of being arranged on the bucket wheel machine bucket wheel rotating axle coaxially, and the one-way axle right end rotatable installation is in the coal drop bucket body left side, and the one-way axle is fixed with the cam coaxially, be provided with the fixed frame on the coal drop bucket body, and the fixed frame and the coal drop bucket body are provided with the multiple jack plug of corresponding coal drop bucket body inner angle cooperation, and the jack plug is provided with the ejector rod in, and the ejector rod one end is fixed with the outer frame, and the spring is still set up on the ejector rod between the outer frame and the fixed frame, the outer frame is still provided with the contact plate of cooperation with the cam, the utility model discloses the application of inner angle cleaning device, and the outer frame drives the reciprocating in and out of the ejector rod in the inner angle vicinity area of coal drop bucket body when the bucket wheel machine bucket wheel reverses, and the continuity of the adhesion coal heap at this place is destroyed, makes it fall off and drop.

Description

Technical Field

[0001] This utility model relates to the field of loading and unloading equipment, specifically to an easy-to-clean coal hopper for a bucket wheel excavator. Background Technology

[0002] Bucket wheel stacker-reclaimers are continuous loading and unloading equipment used in large dry bulk cargo yards in ports, metallurgy, and mining. They consist of a conveyor arm, bucket wheel, frame, and running mechanism. During reclaiming, the bucket wheel digs up the material, which then falls through the hopper onto the conveyor belt and is discharged. In actual production testing, it was found that the bucket wheel stacker is prone to clogging when digging certain types of coal, especially at the four corners on the inner side of the hopper where coal tends to stick and accumulate. The reason is that the coal needs to be sprayed with water for maintenance during transportation and stacking, and the water-containing coal has a certain degree of stickiness. The existing bucket wheel stacker hopper does not have the function to solve the above problem, making cleaning very troublesome, increasing workload, and delaying production. Improvements are needed. Utility Model Content

[0003] In view of the problems existing in the background art, the purpose of this utility model is to provide an easy-to-clean coal hopper for bucket wheel excavators, which effectively solves the problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An easy-to-clean coal hopper for a bucket wheel excavator includes a hopper body and an inner corner cleaning device. The inner corner cleaning device includes an outer frame that can slide back and forth on the hopper body and a one-way shaft coaxially mounted on the bucket wheel shaft of the bucket wheel excavator. The right end of the one-way shaft is rotatably mounted on the left side of the hopper body, and a cam is coaxially fixed on the one-way shaft. A fixing frame is provided on the hopper body, and multiple insertion holes corresponding to the inner corners of the hopper body are provided on the fixing frame and the hopper body. A push rod is provided in the insertion hole, one end of which is fixedly connected to the outer frame. A spring is also sleeved on the push rod between the outer frame and the fixing frame. Contact plates that cooperate with the cam are also symmetrically arranged on the outer frame.

[0006] Furthermore, the one-way shaft is provided with a receiving cavity coaxial with the bucket wheel shaft of the bucket wheel excavator. A gear is coaxially fixed outside the bucket wheel shaft of the bucket wheel excavator. Multiple grooves are evenly distributed circumferentially along the cross-section of the one-way shaft in the receiving cavity. A trapezoidal block that cooperates with the gear is provided in the groove. One corner of the trapezoidal block is hinged in the groove, and a spring is provided between the groove and the trapezoidal block to make the trapezoidal block contact the gear.

[0007] Furthermore, a connecting shaft is fixedly provided at the right end of the one-way shaft, and a bushing that mates with the connecting shaft is fixedly provided on the left side of the coal hopper body.

[0008] Furthermore, the top rod is provided with a plurality of triangular expansion plates at one end facing the inner cavity of the coal hopper body. The plurality of triangular expansion plates are evenly distributed circumferentially along the cross-section of the top rod. One end of the triangular expansion plate is hinged to the top rod through a hinge shaft, and a torsion spring is sleeved on the hinge shaft to make the triangular expansion plate swing outward.

[0009] Furthermore, a base rod is integrally provided at the end of the top rod facing the inner cavity of the coal hopper body, the triangular expansion plate is installed on the base rod, and a tapered rod is integrally provided on the base rod.

[0010] This utility model has the following beneficial technical effects:

[0011] This invention utilizes an inner corner cleaning device. When the bucket wheel of the bucket excavator rotates forward to dig coal, the inner corner cleaning device does not activate, and the coal hopper body performs its original function. When the bucket wheel of the bucket excavator rotates in reverse, the outer frame drives the top rod to reciprocate in and out of the area near the inner corner of the coal hopper body, disrupting the continuity of the coal pile stuck together and causing it to fall off. This embodiment can effectively prevent the coal hopper body from clogging, and the cleaning does not rely on manual labor at all. It only requires the bucket wheel excavator to rotate a few times during the coal digging interval. The operation is stable and safe, and it is suitable for widespread use. Attached Figure Description

[0012] Figure 1 This is a front view of an embodiment of the present utility model;

[0013] Figure 2 This is a front view of the present invention after the bucket wheel of the bucket wheel excavator has been removed;

[0014] Figure 3 for Figure 2 Sectional view along line A-A in the middle;

[0015] Figure 4 This is a front view of the internal structure of the coal hopper body in an embodiment of this utility model;

[0016] Figure 5 for Figure 4 Sectional view along line B-B in the middle;

[0017] Figure 6 This is an end view of the top rod in an embodiment of the present invention;

[0018] Figure 7 This is a schematic diagram of the longitudinal section of the top rod in an embodiment of this utility model. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figure 1-7 As shown in this embodiment, an easy-to-clean bucket wheel excavator coal hopper includes a coal hopper body 1 and an inner corner cleaning device. The inner corner cleaning device includes an outer frame 2 that can slide back and forth on the coal hopper body 1 and a one-way shaft 4 coaxially mounted on the bucket wheel shaft 3 of the bucket wheel excavator. The right end of the one-way shaft 4 is rotatably mounted on the left side of the coal hopper body 1. A cam 5 is coaxially fixed on the one-way shaft 4. Specifically, a connecting shaft 6 is coaxially fixed on the right end of the one-way shaft 4. A bushing 7 that cooperates with the connecting shaft 6 is fixed on the left side of the coal hopper body 1. A part that interacts with the bucket wheel of the bucket wheel excavator is provided inside the one-way shaft 4. The receiving cavity 8 is coaxial with the rotating shaft 3. A gear 9 is coaxially fixed outside the rotating shaft 3 of the bucket wheel excavator. The gear 9 is located in the receiving cavity 8. Five grooves 10 are evenly distributed circumferentially along the cross-section of the one-way shaft 4 in the receiving cavity 8. A trapezoidal block 11 that cooperates with the gear 9 is set in the groove 10. One side of the trapezoidal block 11 is in contact with the gear 9, and the other corner of the trapezoidal block 11 is hinged in the groove 10. A spring is provided between the groove 10 and the trapezoidal block 11 to make the trapezoidal block 11 contact the gear 9. Specifically, blind holes are provided on the groove 10 and the trapezoidal block 11 respectively, and the two ends of the spring are stuck in the blind holes.

[0022] When the bucket wheel 12 of the bucket wheel excavator is digging coal, the bucket wheel shaft 3 of the bucket wheel excavator rotates forward, and the trapezoidal block 11 is moved by the gear 9, but will not drive the one-way shaft 4 under the drive of the gear 9; the gap when the bucket wheel 12 of the bucket wheel excavator is not working can control the bucket wheel shaft 3 of the bucket wheel excavator to rotate in reverse. At this time, the gear 9 abuts against the trapezoidal block 11, and the one-way shaft 4 rotates under the drive of the bucket wheel shaft 3 of the bucket wheel excavator.

[0023] A fixing frame 13 is provided on the coal hopper body 1. The fixing frame 13 and the coal hopper body 1 are provided with multiple insertion holes corresponding to the inner corners of the coal hopper body 1. A top rod 14 is provided in the insertion hole. One end of the top rod 14 is fixedly connected to the outer frame 2. A spring is also sleeved on the top rod 14 between the outer frame 2 and the fixing frame 13. The spring is a compression spring. When the springs on the front and rear sides of the coal hopper body 1 are balanced without external force, the top rod 14 just does not extend into the inner cavity of the coal hopper body 1. The outer frame 2 is also symmetrically provided with contact plates 15 that cooperate with the cam 5. The two contact plates 15 are fixedly connected by a crossbeam and the distance between the two contact plates 15 is equal to the base circle diameter of the cam 5. When the cam 5 rotates, it drives the outer frame 2 to move back and forth by moving the two contact plates 15.

[0024] To enhance the destructive effect of the top rod 14, six triangular expansion plates 16 are provided at one end of the top rod 14 facing the inner cavity of the coal hopper body 1. The six triangular expansion plates 16 are evenly distributed circumferentially along the cross-section of the top rod 14. One end of each triangular expansion plate 16 is hinged to the top rod 14 via a hinge shaft, and a torsion spring 17 is sleeved on the hinge shaft to allow the triangular expansion plates 16 to swing outward. Specifically, a base rod portion 18 is integrally provided at the end of the top rod 14 facing the inner cavity of the coal hopper body 1, and the triangular expansion plates 16 are mounted on the base rod portion 18. The device is integrally equipped with a tapered rod 19, which makes it easier for the triangular expansion piece 16 to close and avoids jamming. When the top rod 14 extends out of the insertion hole and into the inner cavity of the coal hopper body 1, the inclined side of the triangular expansion piece 16 always fits against the outer edge of the insertion hole. With the assistance of the torsion spring 17 and the main resistance of the sticky coal pile, the triangular expansion piece 16 opens. As the top rod 14 extends in, the damage to the sticky coal pile is better. When the top rod 14 retracts into the insertion hole, the triangular expansion piece 16 closes under the action of the insertion hole and retracts into the insertion hole together.

[0025] When the bucket wheel 12 of the bucket wheel excavator rotates forward to dig coal, the inner corner cleaning device does not start, and the coal hopper body 1 performs its original function. When the bucket wheel 12 of the bucket wheel excavator rotates in reverse, the cam 5 rotates, which drives the two contact plates 15 to move the outer frame 2 back and forth relative to the coal hopper body 1. The outer frame 2 drives the push rod 14 to move back and forth in the area near the inner corner of the coal hopper body 1, breaking the continuity of the coal pile stuck together here, causing it to fall off. This embodiment can effectively avoid the blockage of the coal hopper body 1. The cleaning does not rely on manual labor at all. It only requires the bucket wheel excavator to rotate a few revolutions in the gap between digging coal. The operation is stable and safe, and it is suitable for widespread use.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A coal hopper for an easy-to-clean bucket wheel excavator, characterized in that, The device includes a coal hopper body and an inner corner cleaning device. The inner corner cleaning device includes an outer frame that can slide back and forth on the coal hopper body and a one-way shaft coaxially mounted on the bucket wheel shaft of the bucket wheel excavator. The right end of the one-way shaft is rotatably mounted on the left side of the coal hopper body, and a cam is coaxially fixed on the one-way shaft. A fixing frame is provided on the coal hopper body, and multiple insertion holes corresponding to the inner corners of the coal hopper body are provided on the fixing frame and the coal hopper body. A push rod is provided in the insertion hole, and one end of the push rod is fixedly connected to the outer frame. A spring is also sleeved on the push rod between the outer frame and the fixing frame. Contact plates that cooperate with the cam are also symmetrically arranged on the outer frame.

2. The easy-to-clean coal hopper of a bucket wheel excavator according to claim 1, characterized in that, The one-way shaft is provided with a receiving cavity coaxial with the bucket wheel shaft of the bucket wheel excavator. A gear is coaxially fixed outside the bucket wheel shaft of the bucket wheel excavator. Multiple grooves are evenly distributed circumferentially along the cross-section of the one-way shaft in the receiving cavity. A trapezoidal block that cooperates with the gear is provided in the groove. One corner of the trapezoidal block is hinged in the groove, and a spring is provided between the groove and the trapezoidal block to make the trapezoidal block contact the gear.

3. The easy-to-clean coal hopper of a bucket wheel excavator according to claim 2, characterized in that, A connecting shaft is fixed to the right end of the one-way shaft, and a bushing that mates with the connecting shaft is fixed to the left side of the coal hopper body.

4. The easy-to-clean coal hopper of a bucket wheel excavator according to claim 1, characterized in that, The top rod is provided with a plurality of triangular expansion plates at one end facing the inner cavity of the coal hopper body. The plurality of triangular expansion plates are evenly distributed circumferentially along the cross-section of the top rod. One end of the triangular expansion plate is hinged to the top rod through a hinge shaft, and a torsion spring is sleeved on the hinge shaft to make the triangular expansion plate swing outward.

5. The easy-to-clean coal hopper of a bucket wheel excavator according to claim 4, characterized in that, The end of the top rod facing the inner cavity of the coal hopper body is integrally provided with a base rod part, the triangular expansion plate is installed on the base rod part, and a tapered rod part is integrally provided on the base rod part.

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