Agricultural lift track carrier

Abstract

The utility model discloses an agricultural lifting type tracked transport vehicle, which comprises a tracked vehicle part and a lifting basket part, wherein the tracked vehicle part comprises a rack, a track, a driving wheel, a driving wheel shaft, a supporting wheel, a guide wheel, a baffle, a motor, a speed reducer, a speed reducer connecting plate, a belt seat bearing and a belt seat bearing connecting plate; the lifting basket part comprises two groups of double scissor fork structures, a bottom sliding groove, an electric hydraulic cylinder, a working basket base plate, a bottom hinged plate, a top sliding groove, a hydraulic cylinder mounting beam, a top rod support, a top hinged plate, a needle roller bearing and a transverse connecting shaft. The utility model adopts a tracked chassis, has good passability and stability, and is suitable for complex field environments. The electric hydraulic cylinder is used to drive the lifting basket part, the scissor fork structure is used to realize flexible adjustment of the height of the vehicle body, the lifting is stable, the operation is convenient, and the utility model is suitable for manual picking and transfer operations.

Description

Technical Field

[0001] This utility model belongs to the technical field of devices for lifting loads at a predetermined lifting distance, specifically an agricultural lifting tracked transport vehicle. Background Technology

[0002] In agricultural transport vehicles, the most common modes of movement are wheeled and tracked. Wheeled transport vehicles have advantages such as higher speed and more flexible steering, and are therefore widely used in daily life and some agricultural operations. However, in slippery, muddy, or uneven field environments, their passability and stability are insufficient, making them prone to getting stuck or slipping. In contrast, tracked transport vehicles, although traveling at relatively lower speeds, possess stronger obstacle-crossing capabilities and better stability, maintaining good operational performance in complex terrain conditions. Therefore, they are widely used in various agricultural machinery and equipment.

[0003] In current facility agriculture production, such as greenhouses, the gradual advancement of full mechanization has made the use of agricultural machinery in greenhouse operations a growing trend. Taking tomato production as an example, the adoption of new cultivation models such as "wide furrows and narrow beds" has highlighted the increasing demand for deep integration of agricultural machinery and agronomy. However, there are currently few agricultural machines that can meet the special spatial environment of facility agriculture. Existing equipment is mostly medium to large-sized machinery suitable for field operations, with a large overall size and insufficient spatial adaptability, making it difficult to operate flexibly in the narrow planting channels of greenhouses. In addition, the fruits of tomatoes and other fruits and vegetables in greenhouses are mostly distributed at higher positions, and workers often need to use stools or temporary stepping stones to complete the harvesting work, which is inefficient and poses significant safety hazards.

[0004] Therefore, there is an urgent need for an agricultural transport vehicle that can move flexibly in the narrow spaces of facility agriculture and can adjust the height of the vehicle body to assist manual harvesting and transportation at heights, so as to improve the operational efficiency and safety of facility agriculture. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides an agricultural lifting tracked transport vehicle. The technical solution includes: a tracked vehicle part and a lifting basket part. The tracked vehicle part includes: a frame, tracks, drive wheels, drive wheel axles, support rollers, guide wheels, baffles, motors, reducers, reducer connecting plates, seated bearings, and seated bearing connecting plates. The housings of two independent motors are connected to the input flange of the reducer by bolts. The housing of the reducer is fixed to the reducer connecting plate of the frame by bolts. The output shaft of the motor is fixed to the input shaft of the reducer. The output shaft of the reducer is connected to the inner end of the corresponding drive wheel axle. The drive wheel axle is connected to the seated bearing connecting plate through a seated bearing. Both the reducer connecting plate and the seated bearing connecting plate are welded to the frame. The outer end of the drive wheel axle is connected to the drive wheel.

[0006] Two guide wheels are respectively located at the front of both sides of the frame. The guide wheels are rotatably connected to the fork at the front end of the inner square steel of the sleeve. The middle and rear part of the inner square steel extends into the outer square steel of the sleeve, and the two are clearance-fitted. An end plate is fixed to the rear end of the outer square steel of the sleeve, and an adjusting nut is fixed in the center of the end plate. The stud in the adjusting screw is threadedly connected to the adjusting nut. A stud mounting plate is fixed to the rear end of the inner square steel of the sleeve. The stud mounting plate is rotatably connected to the front end of the stud in the adjusting screw. The track is fitted on the outside of the drive wheel, the support wheel, and the guide wheel.

[0007] The lifting basket section includes: two sets of symmetrical double scissor structures, bottom slides, electric hydraulic cylinders, working basket base plates, bottom hinge plates, top slides, hydraulic cylinder mounting beams, top rod brackets, top hinge plates, needle roller bearings, and transverse connecting shafts; wherein the working basket base plates are installed above the top rod brackets, the two top slides and two pairs of top hinge plates are welded to the top rod brackets, and the two bottom slides and two pairs of bottom hinge plates are fixed to the frame by welding, serving as the support base for the lifting mechanism; the bottom slides (21) and the top slides form the motion guide mechanism for the working basket base plates; one lower support leg of each set of double scissor structures is hinged to a pair of bottom hinge plates, and the other lower support leg slides in the bottom slides through the needle roller bearings installed at the end; one upper support leg of each set of double scissor structures is hinged to a pair of top hinge plates, and the other upper support leg slides in the top slides through the needle roller bearings installed at the end; the corresponding two needle roller bearings are connected by a transverse connecting shaft;

[0008] The two ends of the electric hydraulic cylinder are connected to the extended plates of a hydraulic cylinder mounting beam by pins. The two ends of the hydraulic cylinder mounting beam are fixed by a double scissor structure. The two hydraulic cylinder mounting beams are parallel and perpendicular to the electric hydraulic cylinder.

[0009] The motor's circuitry is connected to the battery. The motor is installed in the drive unit housing, the reducer is installed in the reducer housing, and the battery is installed in the battery housing. The drive unit housing, reducer housing, and battery housing are all fixed within the frame and located in the abdominal area for safety.

[0010] The drive wheel axle passes through a seated bearing and is axially limited by a snap ring.

[0011] Both the front and rear ends of the frame are fixed with baffles.

[0012] Lights are installed on the baffle.

[0013] Both top and bottom slides are located on the rear side of the embodiment.

[0014] Two landing support columns are fixedly installed above the frame.

[0015] A rubber pad is installed at the top of the landing support column.

[0016] The upper part of the work basket base is equipped with a guardrail with a door.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. It adopts a tracked chassis, and the drive wheels are adjustable in position and self-locking via threads, which provides good passability and stability, and adapts to complex field environments.

[0019] 2. The lifting basket is driven by an electric hydraulic cylinder and adopts a scissor-type structure to achieve flexible adjustment of the vehicle height. The lifting is smooth and easy to operate, making it suitable for manual harvesting and transportation operations.

[0020] 3. The vehicle has a compact overall structure, and the power, battery and control components are all equipped with protective boxes, which ensures high reliability and is green and pollution-free.

[0021] 4. The landing support column adopts a rubber buffer structure, which can effectively protect the scissor mechanism and extend its service life. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of the agricultural lifting tracked transport vehicle of this utility model;

[0023] Figure 2 This is a schematic diagram of the tracked vehicle portion in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the connection at the drive wheel of the tracked vehicle in an embodiment of this utility model;

[0025] Figure 4 This is a frame diagram of the tracked vehicle portion in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the lifting part in an embodiment of the present utility model;

[0027] Figure 6 This is a diagram showing the connecting rod hinge of the lifting part in an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the sliding bottom end of the lifting part in an embodiment of this utility model.

[0029] The components include: 1. Tracked vehicle section; 2. Lifting basket section; 11. Frame; 12. Track; 13. Reducer box; 14. Drive unit box; 15. Battery box; 16. Drive wheel; 17. Drive wheel axle; 18. Track roller; 19. Guide wheel; 110. Front and rear baffles; 111. Motor; 112. Reducer; 113. Reducer connecting plate; 114. Bearing with seat; 115. Bearing with seat connecting plate; 21. Bottom slide; 22. Electro-hydraulic cylinder; 23. Operating... 24. Bottom hinge plate, 25. Drop support column, 26. Top slide, 27. Hydraulic cylinder mounting beam, 28. Double scissor structure, 29. Top bracket, 210. Top hinge plate, 211. Needle roller bearing, 212. Lateral connecting shaft, 221. Extending plate, 231. Guardrail with door, 301. Inner square steel of sleeve, 302. Outer square steel of sleeve, 303. Adjusting screw, 304. End plate, 3011. Fork, 3041. Adjusting nut. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 The embodiment of the present utility model shown includes: a tracked vehicle part 1 and a lifting basket part 2. The tracked vehicle part 1 is used to provide stable walking function and load-bearing foundation for the whole vehicle. The lifting basket part 2 is installed above the tracked vehicle frame 11 and is used to control the vehicle height adjustment to meet the harvesting, loading and unloading and transportation needs under different operating scenarios.

[0032] like Figures 1-4 As shown, the tracked vehicle section 1 includes: a frame 11, tracks 12, a reducer box 13, a drive unit box 14, a battery box 15, drive wheels 16, drive wheel axles 17, track rollers 18, guide wheels 19, a baffle 110, a motor 111, a reducer 112, a reducer connecting plate 113, a seated bearing 114, and a seated bearing connecting plate 115, etc. The frame 11 serves as the load-bearing skeleton of the entire vehicle, adopting a square tube welded structure, used to install and support various functional components. The track rollers 18 are installed under the frame via bearing connections, bearing and distributing the weight of the entire machine.

[0033] like Figure 4As shown, the housings of two independent motors 111 are connected to the input flange of the reducer 112 by bolts. The housing of the reducer 112 is fixed to the reducer connecting plate 113 of the frame 11 by bolts. The output shaft of the motor 111 is fixed to the input shaft of the reducer 112, and the output shaft of the reducer 112 is connected to the inner end of the corresponding drive wheel shaft 17, which is used to transmit the power of the motor 111 to the drive wheel 16 after reduction, so as to realize the reduction and torque increase. The circuit of the motor 111 is connected to the battery (not shown in the figure) and the control system. The motor 111 is installed in the drive housing 14, the reducer 112 is installed in the reducer housing 13, and the battery is installed in the battery housing 15. The drive housing 14, the reducer housing 13, and the battery housing 15 are all fixed in the frame 11 and located in the abdominal area to ensure safety.

[0034] The drive wheel shaft 17 is connected to the bearing mounting plate 115 via a bearing 114; both the reducer mounting plate 113 and the bearing mounting plate 115 are welded to the frame 11; the drive wheel shaft 17 passes through the bearing 114 and is axially limited by a snap ring to prevent it from moving in the left and right directions; the outer end of the drive wheel shaft 17 is connected to the drive wheel 16 and the shaft end is fixed by bolts and washers to prevent the drive wheel from loosening or falling off during rotation.

[0035] like Figure 2 As shown, two guide wheels 19 are respectively located at the front of both sides of the frame 11. The guide wheels 19 are rotatably connected to the fork 3011 at the front end of the inner square steel 301 of the sleeve. The middle and rear part of the inner square steel 301 extends into the outer square steel 302 of the sleeve, and the two are in clearance fit. An end plate 304 is fixed to the rear end of the outer square steel 302 of the sleeve. An adjusting nut 3041 is fixed in the center of the end plate 304. The stud in the adjusting screw 303 is threadedly connected to the adjusting nut 3041. A stud mounting plate (not shown in the figure) is fixed to the rear end of the inner square steel 301 of the sleeve. The stud mounting plate is rotatably connected to the front end of the stud in the adjusting screw 303. Thus, when the nut of the adjusting screw 303 is rotated, the relative position of the inner square steel 301 and the outer square steel 302 of the sleeve is adjusted axially to fix the position of the two guide wheels 19, and this position is self-locking, thereby realizing the adjustment of the tension of the track 12. When installing the track 12, first rotate the adjusting screw 303 to retract the guide wheel 16, so that the track 12 can be easily fitted onto the outside of the drive wheel 16, the support wheel 18 and the guide wheel 19. Then, gradually tension the track 12 by adjusting the guide wheel 19 to bring it to a suitable working tension.

[0036] like Figure 2 As shown, the track 12 is a ring structure, fitted on the outside of the drive wheel 16, the support roller 18 and the guide wheel 19, which can provide a large area of ​​ground support in wet or soft soil, improving the vehicle's passability and traction.

[0037] In this embodiment, as Figure 2 As shown, baffles 110 are fixed at both the front and rear ends of the frame 11. The baffles 110 serve to protect and reinforce the structure. Lighting lamps are installed on the baffles 110 to provide lighting conditions when there is insufficient light or when working at night.

[0038] like Figures 5-7 The lifting basket section 2 shown includes: a bottom slide 21, an electric hydraulic cylinder 22, a working basket base plate 23, a bottom hinge plate 24, a lowering support column 25, a top slide 26, a hydraulic cylinder mounting beam 27, a double scissor structure 28, a top rod bracket 29, a top hinge plate 210, a needle roller bearing 211, and a transverse connecting shaft 212. The lifting basket section 2 adopts two sets of symmetrical double scissor structures 28. Each side of the double scissor structure 28 is composed of two sets of cross connecting rods hinged at the upper and lower ends. The connecting rods are connected to the transverse connecting shaft 212 or other fixed shafts through hinges to ensure the symmetry and stability of the mechanism. All hinge points in the double scissor structure 28 are welded with bushings to effectively improve wear resistance and extend service life.

[0039] The work basket base plate 23 is installed above the top rod support 29. Two top sliding grooves 26 and two pairs of top hinge plates 210 are welded to the top rod support 29. Two bottom sliding grooves 21 and two pairs of bottom hinge plates 24 are fixed to the frame 11 by welding, serving as the support base for the lifting mechanism. The bottom sliding grooves 21 and top sliding grooves 26 form the motion guide mechanism for the work basket base plate. One lower support leg (connecting rod) of each set of double scissor structures 28 is hinged to a pair of bottom hinge plates 24, and the other lower support leg slides in the bottom sliding groove 21 through the needle roller bearing 211 installed at the end. One upper support leg (connecting rod) of each set of double scissor structures 28 is hinged to a pair of top hinge plates 210, and the other upper support leg slides in the top sliding groove 26 through the needle roller bearing 211 installed at the end. The corresponding two needle roller bearings 211 are connected by a transverse connecting shaft 212. The needle roller bearings 211 cooperate with the corresponding sliding groove to achieve low-friction rolling support.

[0040] Both ends of the electric hydraulic cylinder 22 are connected to the extension plates 221 of a hydraulic cylinder mounting beam 27 via pins (not shown in the figure). Both ends of the hydraulic cylinder mounting beam 27 are fixed to a double scissor structure 28. The two hydraulic cylinder mounting beams 27 are parallel and perpendicular to the electric hydraulic cylinder 22. This allows the working basket base plate 23 to move with the electric hydraulic cylinder 22 or stop at any height within its stroke. When the hydraulic cylinder 22 extends or retracts, it drives the scissor mechanism to extend or retract, thereby achieving the lifting and lowering adjustment of the working basket base plate. The multi-stage scissor structure provides a large lifting stroke, uniform force distribution during lifting, and good stability, making it suitable for use on uneven ground conditions such as farmland and greenhouses.

[0041] In this embodiment, both top grooves 26 and both bottom grooves 21 are located on the rear side of the embodiment.

[0042] In this embodiment, two landing support columns 25 are provided. The landing support columns 25 are fixed above the frame 11. Rubber pads are installed at the upper end of the landing support columns 25 to achieve buffering. When the scissor mechanism is lowered to the lowest point, the welded top rod bracket 29 contacts the landing support column 25.

[0043] In this embodiment, a guardrail with a door is installed on the upper end of the work basket base plate 23.

[0044] Before starting work, check the tension of the track 12 according to the road conditions, and adjust it by turning the adjusting screw 303.

[0045] During operation, the control motor 111 rotates according to the direction of travel; upon reaching the designated position, the control electric hydraulic cylinder 22 changes the shape of the double scissor structure 28 and pushes the work basket base plate 23 to the working height. After the work is completed, the control electric hydraulic cylinder 22 lowers the work basket base plate 23 to the lowering support column 25 and stops, then the corresponding control motor 111 is controlled to move away.

Claims

1. An agricultural lift track vehicle comprising: The tracked vehicle section (1) and the lifting basket section (2) are characterized in that the tracked vehicle section (1) includes: a frame (11), tracks (12), drive wheels (16), drive wheel axles (17), support rollers (18), guide wheels (19), baffles (110), motors (111), reducers (112), reducer connecting plates (113), bearing seats (114), and bearing seat connecting plates (115). The housings of two independent motors (111) are connected to the input flange of the reducer (112) by bolts. The outer casing of 12) is fixed to the reducer connecting plate (113) of the frame (11) by bolts; the output shaft of the motor (111) is fixed to the input shaft of the reducer (112), and the output shaft of the reducer (112) is connected to the inner end of the corresponding drive wheel shaft (17); the drive wheel shaft (17) is connected to the bearing connecting plate (115) via a bearing (114); both the reducer connecting plate (113) and the bearing connecting plate (115) are welded to the frame (11); the outer end of the drive wheel shaft (17) is connected to the drive wheel (16); Two guide wheels (19) are respectively set at the front of both sides of the frame (11). The guide wheels (19) are rotatably connected to the fork (3011) at the front end of the inner square steel (301) of the sleeve. The middle and rear part of the inner square steel (301) of the sleeve extends into the outer square steel (302) of the sleeve and the two are in clearance fit. An end plate (304) is fixed at the rear end of the outer square steel (302) of the sleeve. An adjusting nut (3041) is fixed in the center of the end plate (304). The stud in the adjusting screw (303) is threadedly connected to the adjusting nut (3041). A stud mounting plate is fixed at the rear end of the inner square steel (301) of the sleeve. The stud mounting plate is rotatably connected to the front end of the stud in the adjusting screw (303). The track (12) is sleeved on the outside of the drive wheel (16), the support wheel (18) and the guide wheel (19). The lifting basket section (2) includes: two sets of symmetrical double scissor structures (28), bottom slides (21), electric hydraulic cylinders (22), working basket base plate (23), bottom hinge plates (24), top slides (26), hydraulic cylinder mounting beams (27), top rod brackets (29), top hinge plates (210), needle roller bearings (211), and transverse connecting shafts (212). The working basket base plate (23) is installed above the top rod brackets (29). The two top slides (26) and the two pairs of top hinge plates (210) are welded to the top rod brackets (29). The two bottom slides (21) and the two pairs of bottom hinge plates (24) are fixed to the frame (1) by welding. 1) On top, it serves as the supporting base for the lifting mechanism; the bottom slide (21) and the top slide (26) form the motion guide mechanism for the working basket base plate; one lower leg of each double scissor structure (28) is hinged to a pair of bottom hinge plates (24), and the other lower leg slides in the bottom slide (21) through the needle roller bearing (211) installed at the end; one upper leg of each double scissor structure (28) is hinged to a pair of top hinge plates (210), and the other upper leg slides in the top slide (26) through the needle roller bearing (211) installed at the end; the corresponding two needle roller bearings (211) are connected by a transverse connecting shaft (212); The two ends of the electric hydraulic cylinder (22) are respectively connected to the extension plate (221) of a hydraulic cylinder mounting beam (27) by a pin shaft. The two ends of the hydraulic cylinder mounting beam (27) are respectively fixed to a double scissor structure (28). The two hydraulic cylinder mounting beams (27) are parallel and perpendicular to the electric hydraulic cylinder (22).

2. The agricultural lifting tracked transport vehicle according to claim 1, characterized in that, The circuit of the motor (111) is connected to the battery. The motor (111) is installed in the driver box (14), the reducer (112) is installed in the reducer box (13), and the battery is installed in the battery box (15). The driver box (14), the reducer box (13) and the battery box (15) are all fixed in the frame (11) and set in the abdominal area to ensure safety.

3. The agricultural lifting tracked transport vehicle according to claim 1, characterized in that, The drive wheel axle (17) passes through the seated bearing (114) and is axially limited by a snap ring.

4. An agricultural lifting tracked transport vehicle according to claim 1, characterized in that, The front and rear ends of the frame (11) are fixed with baffles (110).

5. An agricultural lifting tracked transport vehicle according to claim 4, characterized in that, A light is installed on the baffle (110).

6. An agricultural lifting tracked transport vehicle according to claim 1, characterized in that, Both top grooves (26) and two bottom grooves (21) are located on the rear side.

7. An agricultural lifting tracked transport vehicle according to claim 1, characterized in that, Two landing support columns (25) are fixedly installed above the frame (11).

8. An agricultural lifting tracked transport vehicle according to claim 7, characterized in that, A rubber pad is installed at the upper end of the landing support column (25).

9. An agricultural lifting tracked transport vehicle according to claim 1, characterized in that, The upper end of the work basket base plate (23) is equipped with a guardrail (231) with a door.

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