Transmission device of leaf vegetable harvester

Abstract

The transmission device of the leafy vegetable harvester comprises a rack and a first transmission box body, a plurality of first transmission assemblies are arranged in the first transmission box body, a driving assembly is arranged on the first transmission box body, and the first transmission assemblies are connected with walking equipment; a second transmission box body is further arranged on one side of the first transmission box body, a plurality of second transmission assemblies are arranged in the second transmission box body, first linkage assemblies are arranged between the second transmission assemblies and the first transmission assemblies, and the second transmission assemblies are connected with cutting equipment; the second transmission box body is further provided with a second linkage assembly, and the second linkage assembly is connected with the clamping and conveying equipment. According to the leaf vegetable harvester, only one group of driving structures and multiple groups of transmission structures are used for mutual transmission cooperation, so that the effects of front-back walking operation, cutting operation and orderly clamping and conveying operation of the leaf vegetable harvester can be achieved at the same time, power sources are reduced, and the cost is reduced; and control is simplified, the intelligent degree is high, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of leaf vegetable harvesting machines, in particular to a transmission device of a leaf vegetable harvesting machine. BACKGROUND

[0002] At present, with the gradual improvement of the whole process mechanization of vegetable planting production, the mechanized harvesting technology of green leaf vegetables has attracted people's attention. Among them, the leaf vegetable harvesting machine is mainly a mechanical equipment for cutting and harvesting slender and loose leaf vegetables. Using the leaf vegetable harvesting machine can save manpower and material resources and has high harvesting efficiency. The transmission device, as one of the core components of the leaf vegetable harvesting machine, can effectively improve the intelligent linkage effect of the leaf vegetable harvesting machine.

[0003] However, in the related art, the transmission device of the leaf vegetable harvesting machine is composed of multiple sets of hydraulic motors and transmission gear sets. Each set of hydraulic motor and transmission gear set drives different actions, that is, one set drives the leaf vegetable harvesting machine to walk forward and backward, another set drives the leaf vegetable harvesting machine to cut the leaf vegetables, and another set drives the leaf vegetable harvesting machine to orderly clamp and transport the cut leaf vegetables, so as to complete the transmission process of the leaf vegetable harvesting operation.

[0004] For the above related technologies, the inventors believe that by setting multiple sets of hydraulic motors and transmission gear sets, not only the power source is multiple and the cost is high, but also the operation is complicated and the work efficiency is reduced. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a transmission device of a leaf vegetable harvesting machine to solve the problem that by setting multiple sets of hydraulic motors and transmission gear sets, not only the power source is multiple and the cost is high, but also the operation is complicated and the work efficiency is reduced.

[0006] The transmission device of the leaf vegetable harvesting machine provided by the present application adopts the following technical scheme:

[0007] A transmission device of a leaf vegetable harvesting machine, comprising a rack, a first transmission box body is arranged on the rack, a plurality of sets of first transmission assemblies that cooperate with each other are arranged in the first transmission box body, a driving assembly connected with the first transmission assemblies is arranged on the first transmission box body, and two ends of one of the first transmission assemblies are connected with a walking device;

[0008] A second transmission box body is further arranged on one side of the first transmission box body, a plurality of sets of second transmission assemblies that cooperate with each other are arranged in the second transmission box body, a first linkage assembly is arranged between one of the second transmission assemblies and one of the first transmission assemblies, and one of the second transmission assemblies is connected with a cutting device;

[0009] The second transmission housing is further provided with a second linkage assembly that matches one group of the second transmission assemblies, and the second linkage assembly is connected to the clamping and conveying device.

[0010] Furthermore, the first transmission assembly includes a first transmission rod rotatably arranged on the two inner sides of the first transmission box, and a plurality of first transmission gears are provided on the first transmission rods. Adjacent first transmission gears are engaged with each other, and the output end of the drive assembly cooperates with one of the first transmission gears. The two ends of one of the first transmission rods respectively extend out of the outside of the first transmission box to be connected to the walking equipment respectively.

[0011] Furthermore, the drive assembly includes a drive motor arranged on the outside of the first transmission housing through a first fastener, the output shaft of the drive motor extends into the first transmission housing, and is provided with a drive gear through a second fastener, and the drive gear is engaged with one of the first transmission gears.

[0012] Furthermore, a positioning ring is provided on one side of the driving motor, and a positioning groove that cooperates with the positioning ring is opened on one side of the first transmission box body. The outer side of the positioning ring is also provided with a shock-proof ring plate that is tightly pressed against one side of the first transmission box body, and the shock-proof ring plate cooperates with the first fastener.

[0013] Furthermore, the second transmission assembly includes second transmission rods rotatably arranged on both inner sides of the second transmission housing, and a plurality of second transmission gears are provided on each of the second transmission rods, and adjacent second transmission gears are engaged with each other. The first linkage assembly is arranged between one end of the first transmission rod and one end of the second transmission rod, and one end of one of the second transmission rods extends out of the second transmission housing to be connected to the cutting equipment, and the second linkage assembly cooperates with one of the second transmission gears.

[0014] Furthermore, the first linkage assembly includes an active linkage wheel provided on one end of one of the first transmission rods, a driven linkage wheel provided on one end of one of the second transmission rods, and a linkage belt wound between the active linkage wheel and the driven linkage wheel.

[0015] Furthermore, a tensioning adjustment component cooperating with the linkage belt is also provided on the outer side of the first transmission box body, and the tensioning adjustment component includes an adjusting rod provided on the outer side of the first transmission box body, an adjusting sleeve is provided on the adjusting rod through a rotating sleeve of the adjusting piece, an adjusting strip is provided on the outer side of the adjusting sleeve, and a tensioning adjustment wheel is rotatably provided on one end of the adjusting strip to abut against the linkage belt.

[0016] Furthermore, the second linkage assembly includes a linkage rod rotatably arranged on the two inner sides of the second transmission box, and a linkage slave gear is provided on the linkage rod. One of the second transmission rods is provided with a linkage main gear that cooperates with the linkage main gear. The linkage rod is also provided with a plurality of first linkage bevel gears, and the clamping and conveying equipment is provided with a plurality of second linkage bevel gears that respectively mesh with the first linkage bevel gears.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] By setting up a structure in which a frame, a first transmission box, a first transmission assembly, a drive assembly, a second transmission box, a second transmission assembly, a first linkage assembly and a second linkage assembly cooperate with each other, only one set of drive structures and multiple sets of transmission structures need to be used to transmit and cooperate with each other, so that the leafy vegetable harvester can simultaneously achieve the effects of forward and backward walking operation, cutting operation and orderly clamping and conveying operation, which not only reduces the power source and reduces the cost; but also simplifies the control, has a high degree of intelligence and improves the working efficiency.

[0019] At the same time, the coordinated arrangement of the positioning ring strip, positioning groove, and shockproof ring plate can reduce the transmission of vibration generated by the drive motor to the first transmission housing, thereby effectively preventing shock and improving the stability of the entire leafy vegetable harvester. Furthermore, the provision of a tension adjustment assembly can effectively adjust the tension of the linkage belt, thereby further stabilizing the linkage between the active and driven linkage wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the transmission device of the leafy vegetable harvester according to the embodiment of the present application.

[0021] Figure 2 yes Figure 1 Schematic diagram of the internal transmission.

[0022] Figure 3 It is a structural schematic diagram of the first transmission housing and positioning groove in an embodiment of the present application.

[0023] Figure 4 It is a structural diagram of the driving component of an embodiment of the present application.

[0024] Figure 5 It is a structural schematic diagram of the tensioning adjustment assembly of an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 1, frame; 2, first transmission box; 21, positioning groove; 22, adjusting rod; 23, adjusting sleeve; 24, adjusting piece; 25, adjusting strip; 26, tension adjusting wheel; 3, first transmission assembly; 31, first transmission rod; 32, first transmission gear; 33, driving linkage wheel; 4, driving assembly; 41, driving motor; 411, output shaft; 42, first fastening bolt; 43, driving gear; 44, fastening sleeve; 45, bolt; 46, second fastening bolt; 47, positioning ring strip; 48, shockproof ring plate; 5, second transmission box; 51, linkage rod; 52, linkage driven gear; 53, first linkage helical gear; 6, second transmission assembly; 61, second transmission rod; 62, second transmission gear; 63, driven linkage wheel; 64, linkage main gear; 7, linkage belt; 8, walking device; 9, clamping and conveying device; 91, second linkage helical gear; 10, cutting device. DETAILED DESCRIPTION

[0027] 1The following is in conjunction with the accompanying Figure 1-5 The present application is further described in detail.

[0028] The present application discloses a transmission device of a leaf vegetable harvester, referring to Figure 1 and Figure 2 In the present embodiment, the transmission device comprises a frame 1, a first transmission box 2, a first transmission assembly 3, a driving assembly 4, a second transmission box 5, a second transmission assembly 6, a first linkage assembly and a second linkage assembly. Among them, the first transmission box 2 is installed on the frame 1; the first transmission assembly 3 is provided with several groups, and the several groups of first transmission assemblies 3 are respectively installed inside the first transmission box 2, the first transmission assemblies 3 are mutually matched between adjacent ones, and two ends of one group of first transmission assemblies 3 are respectively connected with the walking device 8.

[0029] The driving assembly 4 is installed on the first transmission box 2, and the output end of the driving assembly 4 is connected with one group of first transmission assemblies 3, so as to drive one group of first transmission assemblies 3 to rotate, so that the remaining first transmission assemblies 3 also rotate correspondingly, thereby facilitating the driving of the walking device 8 to start, so as to realize the forward and backward walking operation of the leaf vegetable harvester.

[0030] Specifically, referring to Figure 2In the embodiment, the first transmission assembly 3 comprises a first transmission rod 31 and a plurality of first transmission gears 32. The two ends of the first transmission rod 31 are rotatably connected to the two inner sides of the first transmission box 2 by bearings respectively. The plurality of first transmission gears 32 are installed on the first transmission rod 31 and mesh with each other between adjacent two first transmission gears 32. More specifically, the diameters of the adjacent and meshing first transmission gears 32 are different, and the smaller-diameter gears drive the larger-diameter gears, so that the effect of deceleration and torque increase can be achieved, and the whole transmission process is more labor-saving and stable.

[0031] Meanwhile, the two ends of the first transmission rod 31 that rotates last extend outside the first transmission box 2 to be connected to the walking device 8 respectively, so as to drive the walking device 8 to rotate. The output end of the driving assembly 4 cooperates with the first transmission gear 32 that rotates first, so as to drive the first transmission gear 32 that rotates first.

[0032] Specifically, referring to Figure 2-Figure 4 In the embodiment, the driving assembly 4 comprises a driving motor 41, a first fastener, a driving gear 43, and a second fastener. The driving motor 41 is installed on the outer side of the first transmission box 2 by the first fastener. The first fastener is a plurality of first fastening bolts 42, and a plurality of fastening holes are formed on the outer side of the driving motor 41. A plurality of first fastening screw holes corresponding to the fastening holes are formed on the outer side of the first transmission box 2. The first fastening bolts 42 are matched with the fastening holes, so that the first fastening bolts 42 pass through the fastening holes. The first fastening bolts 42 are screwed into the first fastening screw holes, so that the driving motor 41 is stably installed on the outer side of the first transmission box 2.

[0033] Meanwhile, the output shaft 411 of the driving motor 41 extends into the interior of the first transmission box 2, and the driving gear 43 is installed on the output shaft 411 of the driving motor 41 by the second fastener. The driving gear 43 meshes with the first transmission gear 32 that rotates first. When the driving motor 41 is started, the driving shaft of the driving motor 41 drives the driving gear 43 to rotate, so that the driving gear 43 drives the first transmission gear 32 to rotate.

[0034] More specifically, the second fastening member includes a fastening sleeve 44, a latch 45, and a second fastening bolt 46. The fastening sleeve 44 is sleeved onto the output shaft 411 of the drive motor 41, and the drive gear 43 is fixedly mounted on the fastening sleeve 44. A first latch slot is defined on the inner side of the fastening sleeve 44, and a second latch slot is defined on the output shaft 411 of the drive motor 41. The latch 45 engages with both the first and second latch slots. When the first and second latch slots correspond to and communicate with each other, the latch 45 can be inserted into the first and second latch slots, thereby locking the fastening sleeve 44 in place on the output shaft 411 via the latch 45.

[0035] At the same time, two second fastening bolts 46 are provided, and two second fastening threaded holes are also provided on the fastening sleeve 44. These two second fastening threaded holes are threadedly connected to the two second fastening bolts 46; one of the second fastening threaded holes is connected to the first latch slot. When one of the second fastening bolts 46 is screwed into one of the second fastening threaded holes and extends into the first latch slot, it abuts against the latch 45; when the other second fastening bolt 46 is screwed into the other second fastening threaded hole, it abuts against the output shaft 411. The provision of these two second fastening bolts 46 further secures the fastening sleeve 44 to the output shaft 411, thereby improving the fastening stability of the drive gear 43.

[0036] Better, refer to Figure 3 and Figure 4 In this embodiment, a positioning ring strip 47 is installed on one side of the driving motor 41, and a positioning groove 21 is opened on the outer wall of one side of the first transmission housing 2, and the groove wall of the positioning groove 21 cooperates with the outer side of the positioning ring strip 47; when the driving motor 41 is installed on the outer side of the first transmission housing 2, the positioning ring strip 47 is inserted into the positioning groove 21 to achieve an effective positioning effect.

[0037] At the same time, a shock-proof ring plate 48 is also sleeved on the outside of the positioning ring strip 47. When the drive motor 41 is installed on the outside of the first transmission box 2, the shock-proof ring plate 48 and one side of the first transmission box 2 are pressed against each other, and the shock-proof ring plate 48 is made of shock-proof material and has good shock-proof and shock-absorbing effects.

[0038] And the shockproof ring plate 48 also cooperates with the first fastening bolts 42; specifically, a plurality of through holes are opened on the shockproof ring plate 48, and these through holes cooperate with the first fastening bolts 42, so that the first fastening bolts 42 can pass through the shockproof ring plate 48 along the through holes during installation, so that the shockproof ring plate 48 is firmly installed between the drive motor 41 and the first transmission box 2, which can reduce the vibration generated by the drive motor 41 during operation and transmit it to the first transmission box 2, thereby facilitating an effective shockproof effect, so as to improve the stability of the entire leafy vegetable harvester.

[0039] In addition, refer to Figure 1 and Figure 2 In this embodiment, the second transmission housing 5 is installed on one side of the first transmission housing 2; there are several groups of second transmission components 6, and several groups of second transmission components 6 are respectively installed inside the second transmission housing 5. These second transmission components 6 are adjacent to each other, and one end of one group of second transmission components 6 is connected to the cutting equipment 10.

[0040] At the same time, one end of the first linkage component cooperates with one end of one group of second transmission components 6, and the other end of the first linkage component cooperates with one end of one of the first transmission rods 31. By setting the linkage structure of the first linkage component, the first linkage component can be driven to rotate, thereby driving the cutting equipment 10 to cut leafy vegetables.

[0041] Specifically, refer to Figure 2 In this embodiment, the second transmission assembly 6 includes a second transmission rod 61 and a second transmission gear 62. The ends of the second transmission rod 61 are rotatably connected to the inner sides of the second transmission housing 5 via bearings. The second transmission gear 62 is mounted on the second transmission rod 61. More specifically, adjacent second transmission gears 62 on the second transmission rod 61 mesh with each other.

[0042] At the same time, one end of the second transmission rod 61 that rotates first extends out of the second transmission box 5 and is interconnected with the end of the first linkage assembly away from the first transmission rod 31, thereby facilitating the second transmission rod 61 to rotate first; and one end of the second transmission rod 61 that rotates second first extends out of the second transmission box 5 and is interconnected with the cutting device 10, thereby facilitating the cutting device 10 to start.

[0043] In addition, refer to Figure 2In this embodiment, the first linkage assembly includes a driving linkage pulley 33, a driven linkage pulley 63, and a linkage belt 7. The driving linkage pulley 33 is mounted on the end of the first transmission rod 31 extending outside the first transmission housing 2; the driven linkage pulley 63 is mounted on the end of the second transmission rod 61 extending outside the second transmission housing 5; and the linkage belt 7 is wound between the driving linkage pulley 33 and the driven linkage pulley 63.

[0044] In this way, when the first transmission rod 31 rotates, the active linkage wheel 33 can be driven to rotate. Under the action of the linkage belt 7, the active linkage wheel 33 can drive the driven linkage wheel 63 to rotate, and the driven linkage wheel 63 drives the second transmission rod 61 to rotate, thereby realizing the transmission connection effect between the first transmission rod 31 and the second transmission rod 61.

[0045] Preferably, a tension adjustment component is installed on the outside of the first transmission housing 2, and the tension adjustment component cooperates with the linkage belt 7 to adjust the tension of the linkage belt 7. Specifically, refer to Figure 3 and Figure 5 In this embodiment, the tension adjustment assembly includes an adjustment rod 22, an adjustment sleeve 23, an adjustment member 24, an adjustment bar 25, and a tension adjustment wheel 26. One end of the adjustment rod 22 is mounted on the outside of the first transmission housing 2; the adjustment sleeve 23 is rotatably mounted on the adjustment rod 22; the adjustment member 24 is disposed on the end of the adjustment rod 22 away from the first transmission housing 2, and the adjustment member 24 abuts against the adjustment sleeve 23; one end of the adjustment bar 25 is mounted on the outside of the adjustment sleeve 23; the tension adjustment wheel 26 is rotatably mounted on the end of the adjustment bar 25 away from the adjustment sleeve 23, and the tension adjustment wheel 26 abuts against the linkage belt 7.

[0046] At the same time, the adjusting member 24 is an adjusting bolt, and an adjusting threaded hole is provided on the end of the adjusting rod 22 away from the first transmission box body 2. The adjusting bolt is threadedly connected to the adjusting threaded hole, so that the adjusting bolt is twisted into the adjusting threaded hole; when the adjusting sleeve 23 is tightened by the adjusting bolt, the adjusting sleeve 23 can be firmly installed to facilitate the positioning and installation of the position of the tensioning adjusting wheel 26; when the adjusting bolt is loosened, the adjusting sleeve 23 can be rotated to drive the adjusting bar 25 to adjust the upper and lower positions of the tensioning adjusting wheel 26, so as to achieve an effective adjustment effect on the tension of the linkage belt 7, thereby making the linkage between the active linkage wheel 33 and the driven linkage wheel 63 more stable.

[0047] In addition, refer to Figure 1-Figure 3In this embodiment, the second linkage component is arranged on the second transmission box 5, and the second linkage component is interconnected with one group of second transmission components 6, and the second linkage component is also interconnected with the clamping and conveying device 9 to drive the clamping and conveying device 9 to start the operation.

[0048] Specifically, the second linkage assembly includes a linkage rod 51, a linkage slave gear 52, a linkage master gear 64, a first linkage bevel gear 53, and a second linkage bevel gear 91. The linkage rod 51 is rotatably mounted on both side walls of the second transmission housing 5 via bearings at both ends, and the two ends of the linkage rod 51 extend out of the exterior of the second transmission housing 5 on both sides. The linkage slave gear 52 is mounted on the linkage rod 51, and the linkage master gear 64 is mounted on the second transmission rod 61, which rotates first. The diameter of the linkage master gear 64 is larger than that of the linkage slave gear 52, and the linkage master gear 64 and the linkage slave gear 52 are meshed with each other. When the second transmission rod 61 rotates, the linkage master gear 64 is driven to rotate, which in turn drives the linkage slave gear 52 to rotate, thereby causing the linkage slave gear 52 to drive the linkage rod 51 to rotate.

[0049] At the same time, there are multiple first linkage bevel gears 53, and the multiple first linkage bevel gears 53 are respectively installed on the linkage rod 51; there are multiple second linkage bevel gears 91, and the multiple second linkage bevel gears 91 are respectively installed on the clamping and conveying equipment 9, and the second linkage bevel gears 91 are respectively engaged with the first linkage bevel gears 53.

[0050] When the linkage rod 51 rotates, it can drive the first linkage bevel gears 53 to rotate. Since the second linkage bevel gears 91 are engaged with the first linkage bevel gears 53, the second linkage bevel gears 91 rotate, thereby driving the clamping and conveying equipment 9 to perform orderly clamping and conveying operations on the cut leafy vegetables.

[0051] Therefore, by setting up a structure in which the frame 1, the first transmission box 2, the first transmission component 3, the drive component 4, the second transmission box 5, the second transmission component 6, the first linkage component and the second linkage component cooperate with each other, only one set of drive structures and multiple sets of transmission structures need to be used to transmit and cooperate with each other, so that the leafy vegetable harvester can simultaneously achieve the effects of forward and backward walking operation, cutting operation and orderly clamping and conveying operation, which not only reduces the power source and reduces the cost; but also simplifies the control, has a high degree of intelligence and improves the working efficiency.

[0052] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A transmission device for a leafy vegetable harvester, characterized in that: The invention comprises a frame (1), wherein a first transmission housing (2) is provided on the frame (1), wherein a plurality of groups of mutually cooperating first transmission assemblies (3) are provided in the first transmission housing (2), and a driving assembly (4) connected to the first transmission assembly (3) is provided on the first transmission housing (2), wherein both ends of one group of the first transmission assemblies (3) are connected to a walking device (8); A second transmission housing (5) is further provided on one side of the first transmission housing (2), and a plurality of groups of second transmission assemblies (6) that cooperate with each other are provided in the second transmission housing (5), a first linkage assembly is provided between one group of the second transmission assemblies (6) and one group of the first transmission assemblies (3), and one group of the second transmission assemblies (6) is connected to the cutting device (10); The second transmission housing (5) is also provided with a second linkage assembly that cooperates with one set of the second transmission assemblies (6), and the second linkage assembly is connected to the clamping and conveying device (9).

2. The transmission device of the leafy vegetable harvester according to claim 1, characterized in that: The first transmission assembly (3) includes a first transmission rod (31) rotatably arranged on the two inner sides of the first transmission housing (2), and a plurality of first transmission gears (32) are arranged on each of the first transmission rods (31). Two adjacent first transmission gears (32) are meshed with each other. The output end of the drive assembly (4) cooperates with one of the first transmission gears (32). The two ends of one of the first transmission rods (31) respectively extend outside the first transmission housing (2) to be connected to the walking device (8).

3. The transmission device of the leafy vegetable harvester according to claim 2, characterized in that: The drive assembly (4) comprises a drive motor (41) arranged on the outside of the first transmission housing (2) via a first fastener, an output shaft (411) of the drive motor (41) extending into the first transmission housing (2) and provided with a drive gear (43) via a second fastener, the drive gear (43) being engaged with one of the first transmission gears (32).

4. The transmission device of the leafy vegetable harvester according to claim 3, characterized in that: A positioning ring strip (47) is provided on one side of the driving motor (41); a positioning groove (21) is provided on one side of the first transmission housing (2) to match the positioning ring strip (47); an anti-vibration ring plate (48) is sleeved on the outer side of the positioning ring strip (47) to abut against one side of the first transmission housing (2); and the anti-vibration ring plate (48) matches the first fastener.

5. The transmission device of the leafy vegetable harvester according to claim 2, characterized in that: The second transmission assembly (6) includes second transmission rods (61) rotatably arranged on the two inner sides of the second transmission housing (5), and a plurality of second transmission gears (62) are arranged on each of the second transmission rods (61), and two adjacent second transmission gears (62) are meshed with each other. The first linkage assembly is arranged between one end of the first transmission rod (31) and one end of the second transmission rod (61), and one end of one of the second transmission rods (61) extends outside the second transmission housing (5) to be connected to the cutting device (10), and the second linkage assembly cooperates with one of the second transmission gears (62).

6. The transmission device of the leafy vegetable harvester according to claim 5, characterized in that: The first linkage assembly comprises an active linkage wheel (33) provided on one end of one of the first transmission rods (31), a driven linkage wheel (63) provided on one end of one of the second transmission rods (61), and a linkage belt (7) wound between the active linkage wheel (33) and the driven linkage wheel (63).

7. The transmission device of the leafy vegetable harvester according to claim 6, characterized in that: The outer side of the first transmission housing (2) is also provided with a tension adjustment component that cooperates with the linkage belt (7), and the tension adjustment component includes an adjustment rod (22) provided on the outer side of the first transmission housing (2), an adjustment sleeve (23) is rotatably sleeved on the adjustment rod (22) through an adjustment member (24), an adjustment strip (25) is provided on the outer side of the adjustment sleeve (23), and a tension adjustment wheel (26) is rotatably provided at one end of the adjustment strip (25) and is in contact with the linkage belt (7).

8. The transmission device of the leafy vegetable harvester according to claim 5, characterized in that: The second linkage assembly comprises a linkage rod (51) rotatably arranged on the two inner sides of the second transmission housing (5); a linkage slave gear (52) is arranged on the linkage rod (51); a linkage master gear (64) matched with the linkage slave gear (52) is arranged on one of the second transmission rods (61); a plurality of first linkage bevel gears (53) are also arranged on the linkage rod (51); and a plurality of second linkage bevel gears (91) respectively meshed with the first linkage bevel gears (53) are arranged on the clamping conveying device (9).

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