Wood chip sampling machine

Abstract

A wood chip sampling machine comprises a three-axis driving system, a sampling head is fixedly connected to the lifting end of a lifting driving mechanism of the three-axis driving system and comprises a sampling motor, a speed reducer is connected to an output shaft of the sampling motor, and the output of the speed reducer is fixedly connected to the center of a sun gear of a planetary gear reduction gearbox. A gear ring of the planetary reduction gearbox is connected with a drill cylinder connecting sleeve, a drill cylinder is fixedly connected to the drill cylinder connecting sleeve, a drill rod connecting sleeve is fixedly connected to the center of the sun gear, a drill rod is fixedly connected to the drill rod connecting sleeve and located in the drill cylinder, the upper portion of the drill cylinder is a small cylinder part, and the lower end of the small cylinder part is fixedly connected with a conical part. The lower end of the conical part is fixedly connected with a large barrel part, the lower end of the drill rod is fixedly connected with a spiral blade, the lower end in the small barrel part is fixedly connected with a flange separation blade, the spiral blade on the drill rod is located in a space below the small barrel part, and a plurality of discharge ports are formed in the circumferential surface of the conical part. The wood chip sampling machine can replace manual work to complete wood chip sampling operation.

Description

Technical Field

[0001] The invention relates to a sampling device for incoming raw material wood chips, in particular to a wood chip sampling machine, and belongs to the technical field of electromechanical equipment. Background Art

[0002] Wood chips and bamboo skins are the main raw materials for the papermaking industry. According to the requirements of the company's production process, it is necessary to sample and inspect the incoming wood chips. The particle size of the incoming wood chips is generally less than 120mm. For the sampling of this type of raw materials, the company currently basically uses manual sampling. As we all know, manual sampling has disadvantages such as lack of representativeness, easy cheating, and difficult management. In terms of fully automatic sampling machine technology, coal fully automatic sampling machine is an existing technology with a large number of applications. This type of sampling machine adopts a three-dimensional moving mechanism (usually a horizontal front-to-back trolley, also called an X-axis trolley, a horizontal left-to-right trolley is installed on the top of the trolley, also called a Y-axis trolley, and an up-and-down lifting mechanism is installed on the trolley, also called a Z-axis trolley). It is installed at the end of the three-dimensional moving mechanism (usually on the lifting mechanism). Spiral sampling head, the spiral sampling head is in the sampling tube, the spiral sampling head is driven by a motor, and has a discard port and a flow port on the upper part of the sampling tube. A sample retention bucket is installed on the flow port, and random sampling at any point can be achieved through a three-dimensional moving mechanism. However, this mature sampler cannot be used for wood chip sampling. Experiments have found that there are many reasons, mainly as follows: First, the particle size of the wood chips is large and the weight is relatively light. During the use of the spiral sampling head, the spiral sampling head is difficult to screw in, and the long-term friction between the wood chips can easily make the local temperature too high, and the wood chips are relatively more flammable, which will create a risk of burning; second, debris is more likely to be generated during the wood chip sampling process, resulting in poor operation of the equipment; third, due to the poor fluidity and light weight of the wood chips, it is more difficult to take samples out of the sampling tube. Summary of the invention

[0003] The purpose of the present invention is to provide a wood chip sampling machine in view of the above problems existing in the existing wood chip sampling.

[0004] To achieve the purpose of the present invention, the following technical scheme is adopted: a wood chip sampler, including an X-axis track, an X-axis vehicle in the horizontal front-back direction is matched on the X-axis track, a Y-axis track is installed on the upper part of the X-axis vehicle, the Y-axis track is matched with a Y-axis vehicle in the horizontal left-right direction, a lifting drive mechanism is installed on the Y-axis vehicle, a sampling head is fixedly connected to the lifting end of the lifting drive mechanism, the sampling head includes a sampling motor, a reducer is connected to the output shaft of the sampling motor, the output of the reducer is fixedly connected to the center of the sun gear of the planetary gear reducer, the planetary gear reducer includes a sun gear, a planetary gear, and a gear ring, A drill barrel connecting sleeve is connected to the gear ring of the planetary reduction box, the drill barrel is fixedly connected to the drill barrel connecting sleeve, the drill rod connecting sleeve is fixedly connected to the center of the sun gear, the drill rod is fixedly connected to the drill rod connecting sleeve, the drill rod is located in the drill barrel, the upper part of the drill barrel is a small barrel portion, the lower end of the small barrel portion is fixedly connected to a tapered portion, the lower end of the tapered portion is fixedly connected to a large barrel portion, the lower end of the drill rod is fixedly connected to a spiral blade, the lower end of the small barrel portion is fixedly connected to a flange baffle, a bearing is installed between the drill barrel and the drill rod above the flange baffle, the spiral blade on the drill rod is located in the space below the small barrel portion, and a plurality of discharge ports are opened on the circumferential surface of the tapered portion.

[0005] Furthermore, the lower end surface of the large cylinder is serrated.

[0006] Furthermore, an outer sleeve is fixedly arranged outside the drill barrel connecting sleeve, and an upper bearing and a lower bearing are installed between the outer sleeve and the drill barrel connecting sleeve.

[0007] Furthermore, a mounting frame is fixedly arranged around the drill barrel, and a multi-point running collecting hopper is installed on the mounting frame, the multi-point running collecting hopper includes a frame, and a guide rack and an optical axis are fixedly installed on both sides of the frame respectively, and sliders are matched on the two optical axes, and two driving motors are fixedly connected to the two sliders respectively, and gears are fixedly connected to the output shafts of the driving motors, and the gears are respectively meshed with the racks on the corresponding sides, and a closing plate is fixedly installed on the lower part of the frame, and the hopper is directly or indirectly fixedly connected to the slider, and the hopper is a trapezoidal hopper with a larger upper part and a smaller lower part, and a discharge hole is provided between the front end of the closing plate and the frame, and a sample receiving port for the drill barrel to pass through is provided between the rear end of the closing plate and the frame. After the rotating drum rises, when the driving motor drives the bottom of the hopper to the rear end of the closing plate, the upper opening of the trapezoidal hopper is located below the drill barrel, and when the driving motor drives the hopper to move to the front of the frame, the lower opening of the trapezoidal hopper is located in the discharge hole.

[0008] Furthermore, a fixing ring is provided on the outer periphery of the trapezoidal bucket, the fixing ring is fixedly connected to the sliding block, a plurality of bolts are fixedly connected to the fixing ring, a plurality of L-shaped plates are fixedly connected to the circumferential surface of the trapezoidal bucket, a hole is opened on the horizontal plate of the L-shaped plate, the hole is penetrated in the bolt, a compression spring is penetrated between the L-shaped plate and the root of the bolt, the L-shaped plate is compressed on the spring by a nut screwed on the bolt, and the spring applies a downward force on the L-shaped plate to make the bottom of the trapezoidal bucket close to the closing plate.

[0009] Further, when the drive motor drives the bottom of the hopper to the rear end of the closing plate, the opening of the trapezoidal bucket is larger than the drill tube, and in the vertical view, the drill tube is located in the upper opening of the trapezoidal bucket.

[0010] Furthermore, the head of the motor faces upward, and a cover plate is fixedly installed above the optical axis, the gear and the rack.

[0011] Further; on the left and right sides of the trapezoidal bucket are fixedly connected with an outer edge plate, the outer edge plate is attached to the closing plate

[0012] The positive and beneficial technical effect of the present invention is that the wood chip sampling machine can replace manual work to complete the random sampling of wood chips (bamboo chips), realize the automation of the operation, and prevent the occurrence of manual cheating. It is described in detail in conjunction with the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of the present invention.

[0014] Figure 2 is a schematic diagram of the upper part of the sampling head.

[0015] Figure 3 is a schematic diagram of the lower part of the sampling head.

[0016] Figure 4 This is a schematic diagram of a multi-point operation collection bucket (with the cover on one side removed).

[0017] Figure 5 yes Figure 4 Schematic diagram after removing the frame. DETAILED DESCRIPTION

[0018] In order to more fully explain the implementation of the present invention, implementation examples of the present invention are provided. These implementation examples are merely elaborations of the present invention and do not limit the scope of the present invention.

[0019] The marks in the attached drawings are: 1: X-axis car; 2: Y-axis car; 3: Z-axis car; 4: drill tube; 401: small cylinder; 402: conical part; 403: large cylinder; 404: sawtooth; 405: discharge port; 5: mounting frame; 6: multi-point operation collection bucket; 601: driving motor; 602: gear; 603: rack; 604: slider; 605: optical axis; 606: trapezoidal bucket; 607: L-shaped piece; 608: spring; 609: closing plate ;610: frame;611: cover plate;612: discharge hole;613: sample port;614: bolt;615: nut;616: fixing ring;617: outer plate;7: sampling motor;8: reducer;9: sun gear;10: planetary gear;11: gear ring;12: drill pipe connecting sleeve;13: drill barrel connecting sleeve;14: drill pipe;15: outer sleeve;16: lifting rack;17: spiral blade;18: flange baffle;19: bearing.

[0020] As shown in the attached drawings, a wood chip sampler comprises an X-axis track, on which an X-axis vehicle 1 in a horizontal front-to-back direction is provided, a Y-axis track is installed on the upper part of the X-axis vehicle, on which a Y-axis vehicle 2 in a horizontal left-to-right direction is provided, and on the Y-axis vehicle a lifting drive mechanism is installed, the lifting drive mechanism being the Z-axis vehicle 3. In the present embodiment, the lifting drive mechanism adopts a gear rack drive mechanism, and 16 in the figure shows the lifting rack of the lifting drive mechanism, the sampling motor is fixedly connected to the lifting rack, and the sampling head is fixedly connected to the lifting end of the lifting drive mechanism. The above is a mature prior art in the existing coal sampling machine and will not be described in detail here.

[0021] The sampling head includes a sampling motor 7, and a reducer 8 is connected to the output shaft of the sampling motor. The output of the reducer is fixedly connected to the center of the sun gear 9 of the planetary gear reducer. The planetary gear reducer includes a sun gear 9, a planetary gear 10, and a ring gear 11. The structure of the planetary gear reducer is common knowledge. A drill barrel connecting sleeve 12 is connected to the ring gear 11 of the planetary reducer, and the drill barrel 4 is fixedly connected to the drill barrel connecting sleeve. An outer sleeve 15 is fixedly arranged outside the drill barrel connecting sleeve, and an upper bearing and a lower bearing are installed between the outer sleeve and the drill barrel connecting sleeve. The drill rod connecting sleeve 12 is fixedly connected to the center of the sun gear, the drill rod 14 is fixedly connected to the drill rod connecting sleeve, the drill rod is located in the drill barrel, the upper part of the drill barrel is a small barrel portion 401, the lower end of the small barrel portion is fixedly connected to a tapered portion 402, the lower end of the tapered portion 42 is fixedly connected to a large barrel portion 403, the lower end surface of the large barrel portion is serrated, 404 is the sawtooth, the function of the sawtooth is to facilitate the drill barrel to shift materials, the lower end of the drill rod is fixedly connected to a spiral blade 17, the lower end of the small barrel portion is fixedly connected to a flange baffle 18, a bearing 19 is installed between the drill barrel and the drill rod above the flange baffle, the spiral blade on the drill rod is located in the space below the small barrel portion, and a plurality of discharge ports 405 are provided on the circumferential surface of the tapered portion.

[0022] A mounting frame 5 is fixedly arranged around the drill tube, and the mounting frame can be directly or indirectly fixedly connected to the sampling motor. A multi-point running collection hopper 6 is installed on the mounting frame, and the multi-point running collection hopper includes a frame 610. A rack 603 and an optical axis 605 are fixedly installed on both sides of the frame, and sliders 604 are matched on the two optical axes. Two driving motors 601 are fixedly connected to the two sliders, and a gear 605 is fixedly connected to the output shaft of the driving motor 601. The gears are respectively meshed with the racks on the corresponding sides. A closing plate 609 is fixedly installed at the bottom of the frame, and the hopper is directly or indirectly fixedly connected to the slider. The head of the motor faces upward, and a cover plate 611 is fixedly installed above the optical axis, gear, and rack. In this way, wood chips can be prevented from falling onto the gear rack and optical axis to affect the stable operation of the equipment.

[0023] The hopper is a trapezoidal hopper 606 that is larger at the top and smaller at the bottom. A discharge hole 612 is provided between the front end of the closing plate and the frame, and a sample receiving port 613 for the drill tube to pass through is provided between the rear end of the closing plate and the frame. After the rotating drum rises, when the driving motor drives the bottom of the hopper to the rear end of the closing plate (sample receiving port), the upper opening of the trapezoidal hopper is located below the drill tube. When the driving motor drives the bottom of the hopper to the rear end of the closing plate, the opening of the trapezoidal hopper is larger than the drill tube. In the view in the up and down directions, the drill tube is located in the upper opening of the trapezoidal hopper. When the driving motor drives the hopper to move to the front of the frame, the lower opening of the trapezoidal hopper is located in the discharge hole.

[0024] As a further optimization, a fixing ring 616 is provided on the outer periphery of the trapezoidal bucket, and the fixing ring 616 is fixedly connected to the sliding block, and a plurality of bolts are fixedly connected to the fixing ring, and a plurality of L-row 607 pieces are fixedly connected to the circumferential surface of the trapezoidal bucket 614, and a hole is opened on the horizontal piece of the L-shaped piece, and the hole is penetrated in the bolt, and a clamping spring 608 is penetrated between the L-shaped piece and the root of the bolt, and the L-shaped piece is compressed on the spring through a nut screwed on the bolt, and the spring exerts a downward force on the L-row piece to make the bottom of the trapezoidal bucket close to the closing plate, so as to prevent wood chips from entering the bottom of the trapezoidal bucket during the movement, affecting the normal operation of the trapezoidal bucket, as a further improvement, an outer edge plate 617 is fixedly connected to both left and right side surfaces of the trapezoidal bucket, and the outer edge plate is fitted on the closing plate, and the function of the outer edge plate is, first, to increase the contact area between the lower mouth of the trapezoidal bucket and the closing plate to prevent long-term deformation under stress; second, to remove wood chips on the closing plate during the movement of the multi-point collection bucket, which is beneficial to the normal and stable operation of the equipment. The trapezoidal bucket has three positions. The lower opening faces the discharge hole as the discharge position (the lower opening is no longer closed by the closing plate), the upper opening faces the receiving hole as the receiving position (the lower opening is still closed by the closing plate), and the lower opening avoids the discharge hole and the upper opening avoids the receiving hole as the storage position. When in the storage position, it does not affect the lifting of the sampling head. There are many ways to control the three positions in the prior art, such as using sensor switch control, such as setting corresponding induction switches at the three positions, setting an induction body that senses the induction switch on the slider, or using a servo motor to drive the motor and control the position through the servo motor.

[0025] The wood chip sampler of the present invention has the following sampling method: after setting the sampling point, the X-axis car and the Y-axis car are operated to above the sampling point. When the X-axis car and the Y-axis car are operated, the Z-axis car can be synchronously lowered or the Z-axis car does not move, the Z-axis is lowered, and the sampling head is lowered from the sample receiving port to above the surface of the material. The sampling motor rotates to drive the drill rod and the drill barrel to rotate. The rotation directions of the drill rod and the drill barrel are opposite. During the rotation of the drill barrel, the surrounding materials are pushed away by the saw teeth, and then the drill rod descends smoothly. During the downward movement of the drill rod, the material goes up under the action of the spiral blades, and is discharged after going up to the discharge port on the drill barrel. The drill barrel and the drill rod rotate in opposite directions to prevent material blockage, thereby reducing the discharge resistance of the discharge port. After the drill rod reaches the set position, the sampling motor stops. The lifting mechanism moves to raise the lower end of the sampling head to above the horizontal height of the trapezoidal bucket, and the driving motor moves to make the trapezoidal bucket move to the material receiving position. The sampling motor reverses, so that the material on the spiral blades in the drill tube will fall into the trapezoidal bucket. After the sampling head completes unloading, the trapezoidal bucket moves to the storage position when the driving motor moves. According to the design requirements of the sampling, if the next sample needs to be stored, the three-dimensional moving mechanism drives the sampling head to the set coordinate point for the second sampling, and the sampling is unloaded into the trapezoidal bucket after unloading. After the set number of samplings is reached, the unloading hole on the multi-point running collection bucket is moved to the top of the next process, and the trapezoidal bucket is driven by the driving motor to move to the unloading position for unloading. After unloading, it is reset to the storage position by the driving motor.

[0026] After describing the implementation mode of the present invention in detail, people familiar with the technology can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention, and the present invention is not limited to the implementation mode of the examples given in the specification.

Claims

1. A wood chip sampling machine, comprising an X-axis track, an X-axis vehicle in a horizontal front-to-back direction is matched on the X-axis track, a Y-axis track is installed on the upper part of the X-axis vehicle, a Y-axis vehicle in a horizontal left-to-right direction is matched on the Y-axis track, a lifting drive mechanism is installed on the Y-axis vehicle, and a sampling head is fixedly connected to the lifting end of the lifting drive mechanism, characterized in that: The sampling head comprises a sampling motor, the output shaft of the sampling motor is connected to a reducer, the output of the reducer is fixedly connected to the center of the sun gear of the planetary gear reducer, the planetary gear reducer comprises a sun gear, a planetary gear and a gear ring, the gear ring of the planetary reducer is connected to a drill barrel connecting sleeve, the drill barrel is fixedly connected to the drill barrel connecting sleeve, the drill rod connecting sleeve is fixedly connected to the center of the sun gear, the drill rod is fixedly connected to the drill rod connecting sleeve, the drill rod is located in the drill barrel, the upper part of the drill barrel is a small barrel portion, the lower end of the small barrel portion is fixedly connected to a conical portion, the lower end of the conical portion is fixedly connected to a large barrel portion, the lower end of the drill rod is fixedly connected to a spiral blade, the lower end of the small barrel portion is fixedly connected to a flange baffle, a bearing is installed between the drill barrel and the drill rod on the upper part of the flange baffle, the spiral blade on the drill rod is located in the space below the small barrel portion, and a plurality of discharge ports are provided on the circumferential surface of the conical portion.

2. A wood chip sampling machine according to claim 1, characterized in that: The lower end surface of the large cylinder is serrated.

3. A wood chip sampling machine according to claim 1, characterized in that: An outer sleeve is fixedly arranged outside the drill tube connecting sleeve, and an upper bearing and a lower bearing are installed between the outer sleeve and the drill tube connecting sleeve.

4. A wood chip sampling machine according to claim 1, characterized in that: A mounting frame is fixedly arranged around the drill barrel, and a multi-point running collecting hopper is installed on the mounting frame. The multi-point running collecting hopper includes a frame, and a rack and an optical axis are fixedly installed on both sides of the frame respectively, and sliders are matched on the two optical axes. Two driving motors are fixedly connected to the two sliders respectively, and gears are fixedly connected to the output shafts of the driving motors. The gears are respectively meshed with the racks on the corresponding sides. A closing plate is fixedly installed on the lower part of the frame, and the hopper is directly or indirectly fixedly connected to the slider. The hopper is a trapezoidal hopper with a larger upper part and a smaller lower part. A discharge hole is provided between the front end of the closing plate and the frame, and a sample receiving port for the drill barrel to pass through is provided between the rear end of the closing plate and the frame. After the rotating drum rises, when the driving motor drives the bottom of the hopper to the rear end of the closing plate, the upper opening of the trapezoidal hopper is located below the drill barrel, and when the driving motor drives the hopper to move to the front of the frame, the lower opening of the trapezoidal hopper is located in the discharge hole.

5. A wood chip sampling machine according to claim 4, characterized in that: A fixing ring is arranged on the outer periphery of the trapezoidal bucket, and the fixing ring is fixedly connected to the sliding block, and a plurality of bolts are fixedly connected to the fixing ring, and a plurality of L-shaped plates are fixedly connected to the peripheral surface of the trapezoidal bucket, and holes are opened on the horizontal plates of the L-shaped plates, and the holes are penetrated in the bolts, and a compression spring is penetrated between the L-shaped plates and the roots of the bolts, and the L-shaped plates are pressed against the springs by nuts screwed on the bolts, and the springs exert a downward force on the L-shaped plates to make the bottom of the trapezoidal bucket close to the closing plate.

6. A wood chip sampling machine according to claim 4, characterized in that: When the driving motor drives the bottom of the hopper to the rear end of the closing plate, the opening of the trapezoidal bucket is larger than the drill tube, and the drill tube is located in the upper opening of the trapezoidal bucket in the vertical view.

7. A wood chip sampling machine according to claim 4, characterized in that: The head of the motor faces upward, and a cover plate is fixedly installed above the optical axis, the gear and the rack.

8. A wood chip sampling machine according to claim 4, characterized in that: An outer edge plate is fixedly connected to both left and right side surfaces of the trapezoidal bucket, and the outer edge plate is attached to the closing plate.

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