Wood chip sampling machine
By designing a sampling head with coordinated X-axis, Y-axis, and Z-axis tracks and a planetary gear reducer, the problems of difficulty in screwing in and removing the spiral sampling head in wood chip sampling have been solved, thus achieving automation of wood chip sampling and stable equipment operation.
Patent Information
- Application Number
- CN202423167348.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing technologies cannot be effectively applied to wood chip sampling. Problems include the difficulty in screwing in the spiral sampling head due to the large particle size and light weight of the wood chips, the risk of high-temperature combustion caused by friction, and the impact of debris on equipment operation and sample output.
The sampling head design, which uses X-axis, Y-axis and Z-axis tracks, combined with a planetary gear reducer and drill barrel structure, and equipped with a multi-point running collection bucket, enables automated sampling. The combination of drill rod and spiral blades solves the problem of wood chip sampling.
The process of automating wood chip sampling avoids the drawbacks of manual sampling, ensures stable equipment operation, reduces the risk of combustion, and improves sampling efficiency.
Smart Images
Figure CN223827326U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the raw material wood chip sampling equipment, especially in kind of wood chip sampling machine belongs to electromechanical equipment technical field. BACKGROUND
[0002] Wood chip, bamboo skin is the main raw material of papermaking industry, according to the requirement of enterprise production process, need to the wood chip of entry to carry out sampling inspection, the granularity of the wood chip of entry is generally less than 120mm, aiming at this kind of raw material sampling, the enterprise basically samples the manual sampling mode at present, as we all know, manual sampling has the disadvantages such as representativeness check, easy cheating, difficult management, in the full-automatic sampling machine technology, coal carbon full-automatic sampling machine is the technology of existing large amount of application, this kind of sampling machine adopts three-dimensional moving mechanism (usually adopts the horizontal front and back direction of car, also called X axle car, installs the horizontal left and right direction trolley on the car top, also called Y axle car, installs the lifting mechanism of up and down direction on the trolley, also called Z axle car), installs the spiral sampling head on the end of three-dimensional moving mechanism (usually lifting mechanism), the spiral sampling head is in the sampling cylinder, the spiral sampling head is driven by motor, has the discard port and flow port on the upper portion of sampling cylinder, installs the sample holder on the flow port, can realize random sampling of any point through three-dimensional moving mechanism, but this mature sampling machine can not be used in wood chip sampling, through the test, there are many reasons, mainly as follows: first, the granularity of wood chip is relatively large, and the weight is relatively light, in the process of using spiral sampling head, spiral sampling head is difficult to spin in, and long time between friction and wood chip can cause local temperature to be too high, wood chip is relatively more flammable, like this can produce the risk of burning, second, wood chip sampling process is more prone to debris, leading to equipment operation is not smooth, three, due to the poor flowability of wood chip, light weight, it is difficult to sample from the sampling cylinder. SUMMARY
[0003] The utility model discloses a kind of wood chip sampling machines for the above problems existing in prior wood chip sampling.
[0004] The utility model discloses a wood chip sampling machine, including X axle track, the X axle track is cooperated with the X axle car of horizontal front -back direction, the Y axle track is installed on the upper portion of X axle car, and the Y axle car is cooperated with the Y axle car of horizontal left -right direction, and the lifting drive mechanism is installed on Y axle car, and the sampling head fixed connection is in the lifting end of lifting drive mechanism, sampling head includes sampling motor, and the output shaft of sampling motor is connected with speed reducer, and the output fixed connection of speed reducer is at the sun center of planetary gear reduction gearbox, and the planetary gear reduction gearbox includes sun, planet wheel, gear ring, and the gear ring of planetary reduction gearbox is connected with the drill cylinder connecting sleeve, and the drill cylinder is fixedly connected on the drill cylinder connecting sleeve, and the drill rod connecting sleeve is fixedly connected on the center of sun, and the drill rod is fixedly connected on the drill rod connecting sleeve, and the drill rod is located in the drill cylinder, and the upper portion of drill cylinder is small cylinder part, and the lower end fixed connection of small cylinder part has taper part, and the lower end fixed connection of taper part has large cylinder part, and the lower end fixed connection of drill rod has helical blade, and the lower end fixed connection of small cylinder part has flange baffle, and the bearing is installed between the drill cylinder and drill rod of the upper portion of flange baffle, and the helical blade of drill rod is located in the space below small cylinder part, and a plurality of discharge ports are set up on the circumference of taper part.
[0005] Further, the lower end surface of the large cylinder part is serrated.
[0006] Further, an outer sleeve is fixedly arranged outside the drill cylinder connecting sleeve, and an upper bearing and a lower bearing are arranged between the outer sleeve and the drill cylinder connecting sleeve.
[0007] Further, a mounting frame is fixedly arranged around the drill cylinder, and a multi-point operation collecting hopper is arranged on the mounting frame, the multi-point operation collecting hopper comprises a frame, a guide rack and a light shaft are fixedly arranged on both sides of the frame, a sliding block is arranged on each light shaft, a driving motor is fixedly connected to each sliding block, a gear is fixedly connected to the output shaft of each driving motor, the gears are engaged with the racks on the corresponding sides, a closing plate is fixedly arranged at the lower portion of the frame, and a hopper is directly or indirectly fixedly connected to the sliding blocks, the hopper is a trapezoidal hopper with a large upper portion and a small lower portion, a discharging hole is arranged between the front end of the closing plate and the frame, a sample receiving opening is arranged between the rear end of the closing plate and the frame for the drill cylinder to pass through, when the driving motor drives the bottom of the hopper to the rear end of the closing plate after the rotating cylinder is lifted, the upper opening of the trapezoidal hopper is located below the drill cylinder, and when the driving motor drives the hopper to move to the front portion of the frame, the lower opening of the trapezoidal hopper is located in the discharging hole.
[0008] Further, 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 pieces are fixedly connected to the circumferential surface of the trapezoidal hopper, a hole is formed in the horizontal piece of the L-shaped piece, the hole is arranged in the bolt, a compression spring is arranged between the L-shaped piece and the root of the bolt, the L-shaped piece is compressed on the spring through the nut screwed on the bolt, and the spring applies a downward force to the L-shaped piece to make the bottom of the trapezoidal hopper tightly adhere to the closing plate.
[0009] Further, 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 cylinder, and in the view in the up-down direction, the drill cylinder is located in the upper opening of the trapezoidal hopper.
[0010] Further, 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, an outer edge plate is fixedly connected to each of the left and right side surfaces of the trapezoidal hopper and is attached to the closing plate.
[0012] The wood chip sampling machine can replace manual work to complete random sampling of wood chips (bamboo chips), realize automation of the sampling work, and prevent occurrence of human work defects. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the overall schematic view of the utility model.
[0014] Figure 2 It is the schematic view of the upper part of the sampling head.
[0015] Figure 3 It is the schematic view of the lower part of the sampling head.
[0016] Figure 4 It is the schematic view of the multi-point operation collection hopper (with one side cover plate removed).
[0017] Figure 5 It is Figure 4 The schematic view after the frame is removed. DETAILED DESCRIPTION
[0018] In order to more fully explain the implementation of the utility model, the implementation examples of the utility model are provided, and these implementation examples are only used to illustrate the utility model and do not limit the scope of the utility model.
[0019] The marks in the drawings are: 1: X-axis car; 2: Y-axis car; 3: Z-axis car; 4: drill cylinder; 401: small cylinder part; 402: tapered part; 403: large cylinder part; 404: sawtooth; 405: discharge port; 5: mounting frame; 6: multi-point operation collecting hopper; 601: driving motor; 602: gear; 603: rack; 604: sliding block; 605: optical axis; 606: trapezoidal hopper; 607: L-shaped sheet; 608: spring; 609: closing plate; 610: frame; 611: cover plate; 612: discharging hole; 613: sample receiving port; 614: bolt; 615: nut; 616: fixing ring; 617: outer edge plate; 7: sampling motor; 8: speed reducer; 9: sun gear; 10: planet gear; 11: gear ring; 12: drill rod connecting sleeve; 13: drill cylinder connecting sleeve; 14: drill rod; 15: outer sleeve; 16: lifting rack; 17: helical blade; 18: flange stopper; 19: bearing.
[0020] As shown in the drawings, a wood chip sampling machine includes an X-axis track, an X-axis car 1 in the horizontal front-rear direction is matched on the X-axis track, a Y-axis track is installed on the upper part of the X-axis car, a Y-axis car 2 in the horizontal left-right direction is matched on the Y-axis track, a lifting driving mechanism, that is, a Z-axis car 3 is installed on the Y-axis car, in this embodiment, the lifting driving mechanism adopts a gear and rack driving mechanism, the lifting rack of the lifting driving mechanism is shown as 16 in the drawing, the sampling motor is fixedly connected between the lifting rack, and the sampling head is fixedly connected to the lifting end of the lifting driving mechanism, the above is the mature prior art in the existing coal sampling machine, which will not be described here.
[0021] The sampling head includes a sampling motor 7, a speed reducer 8 is connected to the output shaft of the sampling motor, the output of the speed reducer is fixedly connected to the center of the sun gear 9 of a planetary gear speed reducer box, the planetary gear speed reducer box includes the sun gear 9, the planet gear 10, and the gear ring 11, and the structure of the planetary gear speed reducer box is common knowledge. The gear ring 11 of the planetary gear speed reducer box is connected to a drill cylinder connecting sleeve 12, the drill cylinder 4 is fixedly connected to the drill cylinder connecting sleeve, an outer sleeve 15 is fixedly arranged outside the drill cylinder connecting sleeve, and an upper bearing and a lower bearing are installed between the outer sleeve and the drill cylinder 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 cylinder, the upper part of the drill cylinder is a small cylinder part 401, the lower end of the small cylinder part is fixedly connected to a tapered part 402, the lower end of the tapered part 42 is fixedly connected to a large cylinder part 403, the lower end surface of the large cylinder part is sawtooth-shaped, and the sawtooth is shown as 404. The function of the sawtooth is to facilitate the drill cylinder to discharge materials, the lower end of the drill rod is fixedly connected to a helical blade 17, the flange stopper 18 is fixedly connected to the inner lower end of the small cylinder part, bearings 19 are installed between the drill cylinder and the drill rod above the flange stopper, and the helical blade on the drill rod is located in the space below the small cylinder part. A plurality of discharge ports 405 are formed in the circumferential surface of the tapered part.
[0022] A mounting frame 5 is fixedly installed around the drill barrel. The mounting frame can be directly or indirectly fixedly connected to the sampling motor. A multi-point operating collection hopper 6 is installed on the mounting frame. The multi-point operating collection hopper includes a frame 610. A rack 603 and an optical shaft 605 are fixedly installed on both sides of the frame. Slider 604 is fitted on both optical shafts. Two drive motors 601 are fixedly connected to the two sliders respectively. Gears 605 are fixedly connected to the output shaft of the drive motors 601. The gears mesh with the racks on the corresponding sides. A closing plate 609 is fixedly installed at the bottom of the frame. The hopper is directly or indirectly fixedly connected to the sliders. The head of the motor faces upward. A cover plate 611 is fixedly installed above the optical shaft, gear, and rack. This can prevent sawdust from falling onto the gear, rack, and optical shaft, affecting 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. There is a discharge hole 612 between the front end of the sealing plate and the frame, and a sample inlet 613 between the rear end of the sealing plate and the frame for the drill cylinder to pass through. When the rotating drum rises, the drive motor drives the bottom of the hopper to the rear end of the sealing plate (sample inlet), and the upper opening of the trapezoidal hopper is located below the drill cylinder. When the drive motor drives the bottom of the hopper to the rear end of the sealing plate, the opening of the trapezoidal hopper is larger than the drill cylinder. In the vertical view, the drill cylinder is located inside the upper opening of the trapezoidal hopper. When the drive motor drives the hopper to move to the front of the frame, the lower opening of the trapezoidal hopper is located inside the discharge hole.
[0024] As a further optimization, a fixing ring 616 is provided on the outer periphery of the trapezoidal bucket. The fixing ring 616 is fixedly connected to the slider. Multiple bolts are fixedly connected to the fixing ring. Multiple L-shaped pieces 607 are fixedly connected to the circumference of the trapezoidal bucket. Holes are opened on the horizontal pieces of the L-shaped pieces, and the holes are inserted into the bolts. A compression spring 608 is inserted between the L-shaped pieces and the root of the bolts. The L-shaped pieces are pressed onto the springs by nuts screwed onto the bolts. The springs apply a downward force to the L-shaped pieces, making the bottom of the trapezoidal bucket stick tightly to the sealing plate. This can prevent sawdust from entering the bottom of the trapezoidal bucket during movement, which would affect the normal operation of the trapezoidal bucket. As a further improvement, an outer edge plate 617 is fixedly connected to both the left and right sides of the trapezoidal bucket. The outer edge plate is attached to the sealing plate. The function of the outer edge plate is twofold: first, to increase the contact area between the bottom of the trapezoidal bucket and the sealing plate, preventing deformation under long-term stress; second, to remove sawdust from the sealing plate during the movement of the multi-point collection bucket, which is conducive to the normal and stable operation of the equipment. The trapezoidal hopper has three positions: the discharge position (where the lower opening faces the discharge hole, no longer sealed by the sealing plate), the receiving position (where the upper opening faces the receiving hole, still sealed by the sealing plate), and the storage position (where the lower opening avoids both the discharge and receiving holes). In the storage position, the lifting and lowering of the sampling head is not affected. There are several existing technologies for controlling these three positions. For example, sensor switches can be used, such as setting corresponding inductive switches for each of the three positions and placing sensors on the slider to detect these switches. Alternatively, a servo motor can be used to drive the position.
[0025] The wood chip sampling machine of this utility model employs the following sampling method: After setting the sampling point, the X-axis and Y-axis carriages move to above the sampling point. While the X-axis and Y-axis carriages are moving, the Z-axis carriage can descend synchronously, or the Z-axis carriage can remain stationary while the Z-axis descends. The sampling head descends from the sampling port to above the material surface. The sampling motor rotates, driving the drill rod and drill cylinder to rotate. The drill rod and drill cylinder rotate in opposite directions. During the rotation of the drill cylinder, the surrounding material is pushed aside by the saw teeth, allowing the drill rod to descend smoothly. During the descent of the drill rod, the material rises under the action of the spiral blades and is discharged after reaching the discharge port on the drill cylinder. The drill cylinder and drill rod rotate in opposite directions to prevent material blockage and reduce the discharge resistance at the discharge port. After the drill rod reaches the set position, the sampling motor... Stop. The lifting mechanism raises the lower end of the sampling head above the horizontal level of the trapezoidal hopper. The drive motor moves the trapezoidal hopper to the receiving position. The sampling motor reverses, and the material on the spiral blades inside the drill barrel falls into the trapezoidal hopper. After the sampling head finishes unloading, the drive motor moves the trapezoidal hopper to the storage position. If the next sample needs to be stored according to the sampling design requirements, the three-dimensional moving mechanism drives the sampling head to the set coordinate point for a second sampling. After sampling, the material is unloaded into the trapezoidal hopper. After the set number of samplings is reached, the unloading hole on the multi-point running collection hopper is moved above the next process. The drive motor drives the trapezoidal hopper to the unloading position for unloading. After unloading, the drive motor resets the hopper to the storage position.
[0026] After a detailed description of the embodiments of this utility model, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent applications. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the technical solution of this utility model, and this utility model is not limited to the embodiments of the examples given in the specification.
Claims
1. A wood chip sampling machine, comprising an X-axis track, an X-axis carriage moving horizontally forward and backward along the X-axis track, a Y-axis track mounted on the upper part of the X-axis carriage, a Y-axis carriage moving horizontally left and right along the Y-axis track, a lifting drive mechanism mounted on the Y-axis carriage, and a sampling head fixedly connected to the lifting end of the lifting drive mechanism, characterized in that: The sampling head includes a sampling motor, and a reducer is connected to the output shaft of the sampling motor. The output shaft 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, planet gears, and a gear ring. A drill barrel connecting sleeve is connected to the gear ring of the planetary gear reducer. 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 cylindrical part. A conical part is fixedly connected to the lower end of the small cylindrical part. A large cylindrical part is fixedly connected to the lower end of the conical part. A helical blade is fixedly connected to the lower end of the drill rod. A flange baffle is fixedly connected to the lower end of the small cylindrical part. A bearing is installed between the drill barrel and the drill rod above the flange baffle. The helical blade on the drill rod is located in the space below the small cylindrical part. Multiple discharge ports are opened on the circumference of the conical part.
2. The wood chip sampling machine according to claim 1, characterized in that: The lower end face of the large cylindrical section is serrated.
3. A wood chip sampling machine according to claim 1, characterized in that: An outer sleeve is fixedly installed 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.
4. A wood chip sampling machine according to claim 1, characterized in that: A mounting frame is fixedly installed around the drill barrel, and a multi-point running collection hopper is installed on the mounting frame. The multi-point running collection hopper includes a frame, and a rack and a light shaft are fixedly installed on both sides of the frame. Sliders are fitted on both light shafts. Two drive motors are fixedly connected to the two sliders respectively. Gears are fixedly connected to the output shafts of the drive motors, and the gears mesh with the racks on the corresponding sides. A closing plate is fixedly installed at the bottom of the frame. The hopper is directly or indirectly fixedly connected to the slider. The hopper is a trapezoidal hopper that is larger at the top and smaller at the bottom. There is a discharge hole between the front end of the closing plate and the frame, and a sample inlet for the drill barrel to pass through between the rear end of the closing plate and the frame. When the rotating drum rises, and the drive motor drives the bottom of the hopper to the rear end of the closing plate, the upper opening of the trapezoidal hopper is below the drill barrel. When the drive motor drives the hopper to the front of the frame, the lower opening of the trapezoidal hopper is in the discharge hole.
5. A wood chip sampling machine according to claim 4, characterized in that: A fixing ring is provided on the outer periphery of the trapezoidal bucket. The fixing ring is fixedly connected to the slider. Multiple bolts are fixedly connected to the fixing ring. Multiple L-shaped pieces are fixedly connected to the circumference of the trapezoidal bucket. Holes are opened on the horizontal pieces of the L-shaped pieces, and the holes are inserted into the bolts. A compression spring is inserted between the L-shaped pieces and the root of the bolts. The L-shaped pieces are pressed onto the springs by nuts screwed onto the bolts. The springs apply a downward force to the L-shaped pieces, so that the bottom of the trapezoidal bucket is pressed tightly against the sealing plate.
6. A wood chip sampling machine according to claim 4, characterized in that: When the drive 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 cylinder. In the vertical view, the drill cylinder is located inside the upper opening of the trapezoidal hopper.
7. A wood chip sampling machine according to claim 4, characterized in that: The head of the motor faces upwards, and a cover plate is fixedly installed above the optical shaft, gear, and rack.
8. A wood chip sampling machine according to claim 4, characterized in that: An outer edge plate is fixedly connected to both the left and right sides of the trapezoidal bucket, and the outer edge plate is attached to the closed plate.