Radish pulling and harvesting device

Abstract

The present invention discloses a radish pulling and harvesting device, which includes a tassel-supporting mechanism and a clamping and pulling device arranged in front and back; the tassel-supporting mechanism includes an active tassel-supporting assembly symmetrically arranged in the left and right, the active tassel-supporting assembly includes a circulation unit and a first tassel-supporting rod equidistantly installed on the circulation unit, and the circulation unit has a straight lifting section that enables the first tassel-supporting rod to move from bottom to top; the tassel-supporting mechanism also includes a fixed tassel-supporting assembly installed in front of the active tassel-supporting assembly, the fixed tassel-supporting assembly includes a second tassel-supporting rod extending in front and back, the second tassel-supporting rod is low in front and high in the back; the first tassel-supporting rod on the straight lifting section extends obliquely forward or along the left and right directions. In the present invention, by improving the tassel-supporting device, most of the radish leaves on the radish can enter the pulling and harvesting device, and in the process of the pulling and harvesting device pulling the radish, most of the radish leaves participate in the pulling operation, which can effectively prevent the radish leaves from breaking and causing the leakage of pulling.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a radish pulling and harvesting device. Background Art

[0002] Carrots are a major cash crop with widespread global distribution. Patent CN204560224U discloses a carrot harvester with a gripping mechanism comprising a stalk-supporting mechanism and a gripping conveyor belt. The stalk-supporting mechanism is a typical stalk-supporting mechanism in the prior art. While this mechanism effectively supports the radish leaves on the left and right sides, it struggles to lift the leaves on the front and back sides. This is especially true for severely fallen radish leaves, as fewer leaves reach the gripping conveyor belt during harvest. This makes it more likely for the leaves to break during harvesting, leaving the roots in the soil. Patent CN114223378A discloses a radish harvester with a front-end gripping assembly comprising a conveyor belt and a gripping fork. The gripping fork comprises a vertical portion perpendicular to the conveyor belt and an inclined portion angled with the vertical portion. This structure attempts to lift the radish leaves on the sides and front and back together. However, in practice, due to the lack of layers, the leaves easily become tangled and torn, or even wrapped around the gripping assembly, making it difficult to achieve the desired gripping effect. Therefore, the present application aims to provide a radish pulling and harvesting device that can effectively harvest carrots with severely fallen radish leaves. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a radish pulling and harvesting device that can allow most radish leaves to enter the clamping and pulling device, thereby preventing the radish leaves from breaking during the pulling process.

[0004] Technical Solution: To achieve the above-mentioned purpose, the present invention provides a radish pulling and harvesting device, which includes a radish supporting mechanism and a clamping and pulling device arranged in front and back; the radish supporting mechanism includes active radish supporting components symmetrically arranged on the left and right, the active radish supporting components including a circulation unit and a first radish supporting rod equidistantly installed on the circulation unit, the circulation unit having a linear lifting section that causes the first radish supporting rod to move from bottom to top;

[0005] The tassel-supporting mechanism also includes a fixed tassel-supporting assembly installed in front of the active tassel-supporting assembly, and the fixed tassel-supporting assembly includes a second tassel-supporting rod extending front and back, and the second tassel-supporting rod is low in front and high in the back;

[0006] The first tassel-supporting rod on the straight lifting section extends obliquely forward or along the left and right directions.

[0007] Furthermore, the second tassel-supporting rod is in a concave arc shape.

[0008] Furthermore, the second tassel-supporting rod includes a main rod portion made of a hollow tube and tapered parts installed at both ends of the main rod portion, and the tapered parts can be disassembled relative to the main rod portion.

[0009] Furthermore, the circulation unit is a chain, and has a driving sprocket and a driven sprocket on its upper and lower sides respectively; the driving sprocket is driven by the first hydraulic motor.

[0010] Furthermore, the tassel-supporting mechanism also includes a front cover plate and a rear cover plate that cover the circulation unit therein; the second tassel-supporting rod has a connecting plate portion, and the connecting plate portion is fixed to the front cover plate through the bracket.

[0011] Furthermore, the upper end of the straight lifting section is inclined backward relative to the lower end.

[0012] Furthermore, the root of the first tassel-supporting rod has a rotating connection part and a block part, and the rotating connection part establishes a rotating connection relationship with the circulation unit; the side of the front cover plate or the rear cover plate close to the straight lifting section has a guide plate acting on the block part.

[0013] Furthermore, the clamping and extracting device includes two clamping belts with a lower front and a higher rear, and the two clamping belts are symmetrically installed in the same plane; the belt segment close to the symmetry center of each clamping belt is the clamping belt segment, and the belt segment away from the clamping belt is the return belt segment; the clamping belt segments of the two clamping belts are installed in parallel or in contact with each other.

[0014] Furthermore, the extraction device further includes an elastic pressing wheel mechanism acting on the clamping belt segment, and a retaining wheel mechanism acting on the return belt segment.

[0015] Furthermore, the front and rear ends of the clamping belt are respectively provided with a driven pulley and a driving pulley, and the driving pulley is driven to rotate by a second hydraulic motor.

[0016] Beneficial effect: The radish pulling and harvesting device of the present invention improves the tassel-supporting device, sets an active tassel-supporting component and a fixed tassel-supporting component, and resets the layout and installation angle of the tassel-supporting component, so that when pulling out radishes with severely fallen leaves, the fixed tassel-supporting component can first lift up the leaves on both sides of the radish, and the active tassel-supporting component then lifts up the leaves in front and behind the radish, and the leaves are supported in such a clear layer. In this way, most of the radish leaves on the radish can enter the pulling and harvesting device. In the process of pulling out radishes by the pulling and harvesting device, most of the radish leaves participate in the pulling operation, which can effectively prevent the radish leaves from breaking and being missed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A side view of a harvesting device for radishes;

[0018] Figure 2 A first three-dimensional structural diagram of the front portion of the radish pulling and harvesting device;

[0019] Figure 3 A second perspective structural diagram of the front portion of the radish pulling and harvesting device;

[0020] Figure 4 This is the structural diagram of the first tassel-supporting pole;

[0021] Figure 5 It is the structural diagram of the rear side cover;

[0022] Figure 6 This is a diagram of the internal structure of the active support component;

[0023] In the figure: 1-tassel mechanism; 1A-active tassel assembly; 11-circulation unit; 11a-linear lifting section; 12-first tassel rod; 121-rotating connection portion; 122-block portion; 12a-cylindrical portion; 12b-holding portion; 12c-first side surface; 12d-second side surface; 1B-fixed tassel assembly; 13-second tassel rod; 131-main rod portion; 132-conical member; 133-connecting plate portion; 14-driving sprocket ;15-driven sprocket;16-first hydraulic motor;17-front cover plate;18-rear cover plate;a-guide plate;a1-guide part;a2-upper transition part;a3-lower transition part;19-bracket;2-clamping and extracting device;21-clamping belt;21a-clamping belt section;21b-return belt section;22-elastic pressure wheel mechanism;23-holding wheel mechanism;24-driving pulley;25-driven pulley;26-second hydraulic motor. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-3 The radish harvesting device shown includes a front-to-back supporting mechanism 1 and a clamping and extracting device 2. The supporting mechanism 1 includes active supporting assemblies 1A symmetrically arranged on the left and right sides. The active supporting assembly 1A includes a circulation unit 11 and first supporting rods 12 equidistantly mounted on the circulation unit 11. The circulation unit 11 causes all first supporting rods 12 thereon to circulate. The circulation unit 11 has a linear lifting section 11a that causes the first supporting rods 12 to move from bottom to top.

[0026] The tassel-supporting mechanism 1 further includes a fixed tassel-supporting component 1B installed in front of the active tassel-supporting component 1A, and the fixed tassel-supporting component 1B includes a second tassel-supporting rod 13 extending forward and backward, and the second tassel-supporting rod 13 is lower in front and higher in the back;

[0027] The circulation unit 11 is installed obliquely relative to the front and rear directions, and the above-mentioned straight lifting section 11a is the side of each chain 11 close to another chain 11. The first tassel-supporting rod 12 on the straight lifting section 11a extends obliquely forward or along the left and right directions, preferably extends obliquely forward.

[0028] There is a distance between the two second tassel-supporting rods 13, so that a radish entry channel is formed between the two second tassel-supporting rods 13. When viewed from above, the first tassel-supporting rods 12 on the straight lifting section 11a are all located within the channel width between the two second tassel-supporting rods 13.

[0029] With the above structure, when the tassel-supporting mechanism 1 is in operation, the two second tassel-supporting rods 13 are respectively located on both sides of the radish planting line. During the forward movement of the second tassel-supporting rods 13, the radish leaves on the left and right sides of the radish are lifted up. In this way, the radish leaves on both sides of the radish entering between the two groups of active tassel-supporting components 1A have been lifted up. The first tassel-supporting rod 12 that moves from the lower end of the circulation unit 11 to the linear lifting section 11a can lift up the radish leaves in the front and back directions of the radish. In this way, the leaves in all directions of the radish can basically be lifted up and enter the clamping and extracting device 2. Most of the radish leaves can participate in the process of extracting the radish, which can effectively prevent too few radish leaves from entering the clamping and extracting device 2, resulting in the radish leaves breaking during the extraction process.

[0030] Preferably, the first tassel-supporting rod 12 on the above-mentioned straight lifting section 11a extends obliquely forward, so that the first tassel-supporting rod 12 also has an extension component in the front-to-back direction. After the radish leaves lifted up by the second tassel-supporting rod 13 are separated from the second tassel-supporting rod 13 from the rear side, they can continue to be supported by the first tassel-supporting rod 12 located on the upper middle side of the straight lifting section 11a. At this time, the first tassel-supporting rod 12 on the lower side of the straight lifting section 11a lifts up the radish leaves on the front and back sides of the radish. In this way, the radishes on the left and right sides of the radish and the radish leaves on the front and back sides are respectively supported by the first tassel-supporting rod 12 located on the upper middle side and the lower middle side of the straight lifting section 11a, and fed into the clamping and extracting device 2, thereby realizing the feeding of most of the radish leaves.

[0031] Preferably, the second tassel-supporting rod 13 is in a concave arc shape, with the tangent of the front end of the second tassel-supporting rod 13 lying flat or at a small angle relative to the ground, and the tangent of the rear end at a large angle relative to the ground. With the above structure, the front end of the second tassel-supporting rod 13 can more easily reach the underside of the radish leaves, and compared to a straight rod, under the premise that the second tassel-supporting rod 13 moves forward the same distance, the arc-shaped second tassel-supporting rod 13 can lift the radish leaves to a higher height.

[0032] Preferably, the second tassel-supporting rod 13 includes a main rod 131 made of a hollow tube and tapered parts 132 installed at both ends of the main rod 131. The tapered parts 132 can be detached relative to the main rod 131. This is conducive to reducing the weight of the second tassel-supporting rod 13. In actual use, the front end of the second tassel-supporting rod 13 moves along the ground or tapers into the ground to push away the soil and move forward so as to reach under the radish leaves. The tapered parts 132 can push away the soil and obstacles when the second tassel-supporting rod 13 moves forward. Since the tapered parts 132 are wearing parts, they can be replaced regularly.

[0033] Preferably, the circulation unit 11 is a chain, and has a driving sprocket 14 and a driven sprocket 15 on its upper and lower sides respectively; the driving sprocket 14 is driven by a first hydraulic motor 16 .

[0034] Preferably, the tassel-supporting mechanism 1 further includes a front cover plate 17 and a rear cover plate 18 covering the circulation unit 11 therein; the second tassel-supporting rod 13 has a connecting plate portion 133, and the connecting plate portion 133 is fixed to the front cover plate 17 through the bracket 19. The front cover plate 17 and the rear cover plate 18 cover the circulation unit 11 inside, and the first tassel-supporting rod 12 extends from the gap between the two cover plates to prevent radishes from being drawn into the circulation unit 11 and causing machine malfunction.

[0035] Preferably, the upper end of the straight lifting section 11a is tilted backward relative to the lower end, so that the first tassel-supporting rod 12 on the straight lifting section 11a is tilted obliquely upward and forms a V-groove with the edge of the front cover plate 17. The radish leaves supported by the first tassel-supporting rod 12 on the straight lifting section 11a can be better maintained on the first tassel-supporting rod 12 and are not easy to slide away.

[0036] The front end of the clamping and extracting device 2 faces the lower side of the straight lifting section 11a. Looking from the side, the position of the first tassel-supporting rod 12 on the upper side of the straight lifting section 11a is on the rear side of the front end of the clamping and extracting device 2. In this way, when the root of the radish leaf enters the clamping and extracting device 2, the radish leaf is still in a lifted state.

[0037] Preferably, if Figure 4As shown, the root of the first tassel-supporting rod 12 has a rotating connection part 121 and a block part 122, and the rotating connection part 121 establishes a rotating connection relationship with the circulation unit 11, where the rotating connection part 121 is a hinge hole, and the block part 122 has a cylindrical part 12a arranged around the rotating connection part 121 and a retaining part 12b with a straight side surface, the retaining part 12b has a first side surface 12c perpendicular to the extension direction of the first tassel-supporting rod 12 and a second side surface 12d connecting the first side surface 12c and the cylindrical part 12a, the angle between the second side surface 12d and the first side surface 12c is an obtuse angle and is tangent to the cylindrical surface of the cylindrical part 12a; as shown Figure 5 、 6 As shown, the rear cover plate 18 has a guide plate a on one side near the linear lifting section 11a, which acts on the block portion 122. The guide plate 1a has a linear guide portion a1 parallel to the linear lifting section 11a, with an upper transition portion a2 and a lower transition portion a3 on the upper and lower sides of the linear guide portion a1, respectively. The first side surface 12c of the first tassel-supporting rod 12 on the linear lifting section 11a contacts the linear guide portion a1, and the retaining portion 12b is located below the cylindrical portion 12a. In this way, the first tassel-supporting rod 12 can remain perpendicular to the linear guide portion a1 when subjected to a downward force. The upper transition portion a2 and the lower transition portion a3 are each composed of multiple plate segments connected end to end, forming an obtuse angle between adjacent plates. The upper transition portion a2 and the lower transition portion a3 both extend along the direction of the circulation unit 11. After the first tassel rod 12 moves to the top of the linear guide portion a1, the first tassel rod 12 gradually rotates relative to the circulation unit 11 during the contact between the block portion 122 and the upper transition portion a2, so that the radish leaves hanging on the first tassel rod 12 gradually disengage from the first tassel rod 12, preventing the radish leaves from following the first tassel rod 12 to the return section of the circulation unit 11 and thus breaking the radish leaves. After the block portion 122 disengages from the upper transition portion a2, when the first tassel rod 12 moves along the return section on the circulation unit 11, the first tassel rod 12 is in a state of free rotation relative to the circulation unit 11 until the first tassel rod 12 reaches the lower end of the circulation unit 11. The lower transition portion a3 acts on the cylindrical portion 12a, the second side surface 12d and the first side surface 12c in sequence to correct the posture of the first tassel rod 12, and then the first tassel rod 12 enters the linear lifting section 11a. In this way, the first tassel-supporting rod 12 will not affect the radish leaves in the adjacent row when moving along the return section on the circulation unit 11.

[0038] Preferably, the clamping and extracting device 2 includes two clamping belts 21 with the front lower and the back higher, and the two clamping belts 21 are symmetrically installed in the same plane; the belt segment close to the symmetry center of each clamping belt 21 is the clamping belt segment 21a, and the belt segment away from the clamping belt 21 is the return belt segment 21b; the clamping belt segments of the two clamping belts 21 are installed in parallel or in contact with each other.

[0039] Preferably, the extraction device 2 further comprises an elastic pressing wheel mechanism 22 acting on the clamping belt segment, and a retaining wheel mechanism 23 acting on the return belt segment, wherein the retaining wheel mechanism 23 is used to prevent the return belt segment from falling.

[0040] Preferably, the front and rear ends of the clamping belt 21 are respectively provided with a driven pulley 25 and a driving pulley 24 , and the driving pulley 24 is driven to rotate by a second hydraulic motor 26 .

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A radish pulling and harvesting device, comprising a tassel-supporting mechanism (1) and a clamping and pulling device (2) arranged front and back; the tassel-supporting mechanism (1) comprises active tassel-supporting components (1A) symmetrically arranged on the left and right, the active tassel-supporting components (1A) comprising a circulation unit (11) and first tassel-supporting rods (12) equidistantly installed on the circulation unit (11), the circulation unit (11) having a linear lifting section (11a) for moving the first tassel-supporting rod (12) from bottom to top; characterized in that: The tassel-supporting mechanism (1) further comprises a fixed tassel-supporting component (1B) installed in front of the active tassel-supporting component (1A), the fixed tassel-supporting component (1B) comprising a second tassel-supporting rod (13) extending forward and backward, the second tassel-supporting rod (13) being lower in front and higher in the back; The circulation unit (11) is installed obliquely relative to the front-to-back direction; the first tassel-supporting rod (12) on the linear lifting section (11a) extends obliquely forward, and the first tassel-supporting rod (12) also has an extension component in the front-to-back direction, so that the radish leaves lifted up by the second tassel-supporting rod (13) can continue to be supported by the first tassel-supporting rod (12) located in the upper middle side of the linear lifting section (11a) after they are separated from the second tassel-supporting rod (13) from the rear side; The second tassel-supporting rod (13) is in a concave arc shape, the tangent of the front end of the second tassel-supporting rod (13) is parallel to the ground or has a small angle with the ground, and the tangent of the rear end has a large angle with the ground; There is a distance between the two second tassel-supporting rods (13), so that a radish entry channel is formed between the two second tassel-supporting rods (13), and in a top-view direction, the first tassel-supporting rods (12) on the straight lifting section (11a) are all located within the channel width between the two second tassel-supporting rods (13); The second tassel-supporting rod (13) has a connecting plate portion (133), and the connecting plate portion (133) is fixed to the front side cover plate (17) of the tassel-supporting mechanism (1) via a bracket (19); The root of the first tassel-supporting rod (12) has a rotating connection part (121) and a block part (122), and the rotating connection part (121) establishes a rotating connection relationship with the circulation unit (11); the front side cover plate (17) or the rear side cover plate (18) of the tassel-supporting mechanism (1) has a guide plate (a) acting on the block part (122) on one side close to the straight lifting section (11a).

2. The radish pulling and harvesting device according to claim 1, characterized in that: The second tassel-supporting rod (13) comprises a main rod portion (131) made of a hollow tube and conical parts (132) installed at both ends of the main rod portion (131), and the conical parts (132) can be disassembled relative to the main rod portion (131).

3. The radish pulling and harvesting device according to claim 1, characterized in that: The circulation unit (11) is a chain having a driving sprocket (14) and a driven sprocket (15) on its upper and lower sides respectively; the driving sprocket (14) is driven to operate by a first hydraulic motor (16).

4. The radish pulling and harvesting device according to claim 1, characterized in that: The upper end of the straight lifting section (11a) is inclined backward relative to the lower end.

5. The radish pulling and harvesting device according to claim 1, characterized in that: The clamping and extracting device (2) comprises two clamping belts (21) which are lower in front and higher in the back, and the two clamping belts (21) are coplanarly and symmetrically installed; the belt segment close to the symmetry center of each clamping belt (21) is the clamping belt segment, and the belt segment away from the clamping belt (21) is the return belt segment; the clamping belt segments of the two clamping belts (21) are installed in parallel or in contact with each other.

6. The radish pulling and harvesting device according to claim 5, characterized in that: The clamping and extracting device (2) further comprises an elastic pressing wheel mechanism (22) acting on the clamping belt segment, and a retaining wheel mechanism (23) acting on the return belt segment.

7. The radish harvesting device according to claim 5, characterized in that: The front and rear ends of the clamping belt (21) are respectively provided with a driven pulley (25) and a driving pulley (24), and the driving pulley (24) is driven to rotate by a second hydraulic motor (26).

Images