Gantry mechanism of heavy paddy field folding rotary cultivator

Abstract

The utility model relates to the technical field of paddy field folding rotary cultivators, in particular to a gantry mechanism of a heavy paddy field folding rotary cultivator, which is characterized in that two gantry plates are symmetrically arranged at the front end and the rear end of a gantry supporting pipe, and a reinforcing plate is fixedly arranged between the two gantry plates; the gantry plate, the reinforcing plate and the gantry supporting pipe are connected and form a stable triangular gantry structure. A first box body fixing plate is arranged at the rear end of the gantry supporting pipe, the upper end face of the first box body fixing plate is flush with the upper end face of the gantry supporting pipe, and a reinforcing structure capable of enhancing the bearing capacity of the first box body fixing plate is fixedly arranged at the lower end of the first box body fixing plate. A second box body fixing plate is vertically and fixedly arranged at the rear end of the first box body fixing plate, and the weight of the rear portion of the box body is pulled between the second box body fixing plate and the gantry structure through an arch-shaped supporting arm so that the overall strength of the gantry structure can be further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable rotary tillers for paddy fields, in particular to a gantry mechanism of a heavy-duty foldable rotary tiller for paddy fields. Background Art

[0002] The heavy-duty paddy field folding rotary tiller has a larger rotary tillage range, which is convenient for use in large paddy fields. However, due to its relatively large size and overall weight, the overall weight is concentrated on the gantry structure in the middle of the equipment when in use, and the load on the gantry mechanism is large. Therefore, a gantry structure with a reasonable connection structure, high strength and large load-bearing capacity suitable for the heavy-duty paddy field folding rotary tiller is needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a gantry mechanism of a heavy-duty paddy field folding rotary tiller, which has the advantages of high strength and heavy load-bearing capacity and is suitable for use in the heavy-duty paddy field folding rotary tiller.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a gantry mechanism of a heavy-duty paddy field folding rotary tiller, including a gantry, a connecting platform, a support arm and a rotary tiller connecting mechanism, the rear end face of the gantry is provided with a connecting platform, the rear end face of the connecting platform is provided with a connecting end plate, the connecting end plate is provided with a support arm and the support arm is connected to the gantry, a transmission box mounting position is provided on the connecting platform below the support arm, a transmission yielding port is provided at the gantry corresponding to the transmission box mounting position, a rotary tiller connecting mechanism is provided at both opposite side ends of the connecting platform, the rotary tiller connecting mechanism includes a connecting shaft, a rotating member and a rotary tiller connecting member, the connecting shaft is provided at the side end of the connecting platform and is connected to the gantry and the connecting end plate, the rotating member is provided on the connecting shaft and rotates relative to the connecting shaft, and the rotating part of the rotating member is provided with a rotary tiller connecting member. A connecting platform is arranged on the rear end face of the gantry, and the gantry and the connecting platform are connected and reinforced by a supporting arm. The gantry, the connecting platform and the supporting arm form a stable gantry structure, and rotary tiller connecting mechanisms suitable for installing a rotary tiller frame are arranged on both side ends of the connecting platform.

[0005] As a preferred solution, the rotary tiller connecting piece includes a clamping type connecting piece, which is connected to the rotary tiller body by means of the clamping type connecting piece, so as to facilitate assembly and disassembly of the rotary tiller body.

[0006] As a preferred solution, a gantry traction member is provided on the top of the gantry, a connection slot is provided on the gantry traction member, the gantry passes through the connection slot and is connected to the gantry traction member, an upper traction connection part and a support arm connection part are provided on the gantry traction member, and the upper traction connection part and the support arm connection part are respectively located at the front and rear sides of the gantry. The gantry traction member is provided on the top of the gantry and is firmly connected to the gantry through the connection slot, and the support arm is detachably connected to the gantry through the gantry traction member.

[0007] As a preferred solution, the front end face of the gantry is provided with a three-point suspension mechanism, which includes an upper traction connecting member and two lower traction connecting members. The upper traction connecting member is an upper traction connecting part, and the two lower traction connecting members are respectively arranged at the two bottom ends of the front end face of the gantry.

[0008] As a preferred solution, the connecting platform includes a platform frame and a platform plate. The platform frame is connected to the rear end face of the gantry frame. The bottom end of the platform frame is provided with a rotary tiller expansion limit end face. The platform plate is arranged on the platform frame and a transmission box mounting position is arranged on the platform plate.

[0009] As a preferred solution, folding drive component connectors are provided on both side end surfaces of the gantry, and the two folding drive component connectors are symmetrically distributed on both sides of the gantry; safety pendant connectors are provided on both side end surfaces of the gantry, and the two safety pendant connectors are symmetrically distributed on both sides of the gantry; pendant drive component connectors are also provided on both side end surfaces of the gantry, and the two pendant drive component connectors are symmetrically distributed on both sides of the gantry.

[0010] As a preferred solution, the folding drive member connector and the safety pendant connector are the same.

[0011] Compared with the prior art, the utility model has the following beneficial effects: a connecting platform is arranged on the rear end face of the gantry, and the rear end face of the connecting platform is connected to the upper position of the gantry through a supporting arm, and the gantry, the connecting platform and the supporting arm form a gantry mechanism with a stable structure and high strength, which is suitable for use with a heavy-duty paddy field folding rotary tiller; rotary tiller connecting mechanisms suitable for installing the folding body are arranged at both side ends of the connecting platform, and the rotary tiller connecting mechanism is connected to the gantry and the connecting end plate to avoid all the weight being concentrated on the gantry, which is not only suitable for connection with a large-sized and heavy rotary tiller body, but also can reasonably distribute the weight and extend the service life of the gantry mechanism; the rotary tiller connecting mechanism is connected to the gantry frame and the connecting end plate, and the gearbox or transmission box of the heavy-duty paddy field folding rotary tiller is arranged on the connecting platform, even when the heavy-duty paddy field folding rotary tiller causes the gantry mechanism to be deformed, the influence on the transmission components can be reduced, thereby reducing the loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a three-dimensional structural diagram of the gantry mechanism from the rear side perspective;

[0014] Figure 2 It is a three-dimensional structural diagram of the gantry mechanism from the front side perspective;

[0015] Figure 3 It is a schematic diagram of the gantry mechanism applied to a heavy paddy field folding rotary tiller;

[0016] In the figure: 1. gantry, 2. connecting platform, 21. rotary tiller expansion limit end surface, 3. support arm, 4. rotary tiller connecting mechanism, 41. rotary tiller connecting part, 5. connecting end plate, 6. gantry traction part, 61. upper traction connection part, 62. support arm connection part. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0018] See also Figure 1-Figure 3 A gantry mechanism of a heavy-duty paddy field folding rotary tiller comprises a gantry 1, a connecting platform 2, a support arm 3 and a rotary tiller connecting mechanism 4. A connecting platform 2 is arranged on the rear end face of the gantry 1. The connecting platform 2 is used to install and connect the rotary tiller body of the heavy-duty paddy field folding rotary tiller and related transmission components. The end of the connecting platform 2 away from the gantry 1 is its rear end. A connecting end plate 5 is arranged on the rear end face of the connecting platform 2. A support arm 3 is arranged on the connecting end plate 5. The support arm 3 is also directly connected to the gantry 1. When viewed from the side end of the gantry 1, the support arm 3, the gantry 1 and the connecting platform 2 are in a stable triangular structure. The support arm 3 strengthens the connection strength between the gantry 1 and the connecting platform 2 to prevent the connecting platform 2 from rotating and deforming relative to the gantry 1 due to excessive load.

[0019] In some embodiments, the support arm 3 is replaceable. The connecting end plate 5 and the gantry 1 are both provided with support arm 3 connecting pieces, and the two ends of the support arm 3 are detachably connected to the two support arm 3 connecting pieces respectively, and the support arm 3 connecting pieces can be ear seats with connecting holes.

[0020] In order to achieve a better strengthening effect, the support arm 3 is above the connecting platform 2 and connects the connecting platform 2 to the gantry 1. A transmission box installation position is set on the connecting platform 2 in the area below the support arm 3. The transmission box installation position is used to install the gearbox or transmission box used for the heavy-duty paddy field folding rotary tiller. A transmission clearance port is set at the corresponding transmission box installation position on the gantry 1. When the heavy-duty paddy field folding rotary tiller is used with a tractor, the power of the tractor is transmitted to the gearbox or transmission box through the transmission clearance port.

[0021] A rotary tiller connection mechanism 4 is provided at both opposite ends of the connection platform 2, and the rotary tiller connection mechanism 4 is used to connect the gantry mechanism with the rotary tiller body of the heavy paddy field folding rotary tiller. The rotary tiller connection mechanism 4 includes a connecting shaft, a rotating member, and a rotary tiller connection member 41. The connecting shaft is provided at the side end of the connection platform 2, the connecting shaft is located between the gantry 1 and the connecting end plate 5 and is connected to both the gantry 1 and the connecting end plate 5, the rotating member is provided on the connecting shaft and rotates relative to the connecting shaft, and the rotating part of the rotating member is provided with a rotary tiller connection member 41.

[0022] In the gantry mechanism of this embodiment, a connecting platform 2 is provided on the rear end face of the gantry 1 and is connected and reinforced by a support arm 3 to form a stable gantry structure. The installation position of the two rotary tiller connecting mechanisms 4 is transferred from the gantry 1 of the prior art to the rear of the gantry 1. On the one hand, it can better adapt to the installation of a large and heavy rotary tiller body. On the other hand, it can also transfer the weight to the rear of the gantry 1 and be borne jointly by the gantry 1 and the connecting platform 2. The gearbox or transmission box of the heavy-duty paddy field folding rotary tiller is arranged on the connecting platform 2.

[0023] See also Figure 1 and Figure 2 As a preferred embodiment, the rotary tiller connecting member 41 includes a clamping type connecting member. Specifically, the clamping type connecting member includes a plurality of clamping members, and the clamping members include two connecting plates, and the connecting plates are provided with clamping grooves. After the two connecting plates are arranged opposite to each other, the two clamping grooves are connected to form a clamping cavity. When the rotary tiller frame is connected for use, the two connecting plates are respectively placed on both sides of the hanging beam of the rotary tiller frame, so that the hanging beam is clamped in the clamping cavity, the tops of the two connecting plates are connected to the rotating member, and then the bottom ends of the two connecting plates are connected. The advantage of using a clamping type connecting member is that it is convenient to assemble or disassemble the gantry mechanism and the rotary tiller body.

[0024] See also Figure 1In some embodiments, a gantry traction member 6 is provided on the top of the gantry 1, and a connecting slot is provided on the gantry traction member 6. The connecting slot is buckled on the top of the gantry 1 and the gantry 1 passes through the connecting slot. The gantry 1 is connected to the gantry traction member 6, and a part of the gantry traction member 6 is located on the front side of the gantry 1 and is provided with an upper traction connection portion 61. The upper traction connection portion 61 is used to connect the gantry 1 to the tractor, and another part of the gantry traction member 6 is located on the rear side of the gantry 1 and is provided with a support arm connection portion 62. The support arm connection portion 62 is used to be detachably connected to the support arm 3.

[0025] The front end face of the gantry 1 is provided with a three-point suspension mechanism, through which the gantry mechanism of this embodiment can be connected to a tractor or other forms of tractors. The three-point suspension mechanism includes an upper traction connecting member and two lower traction connecting members. The upper traction connecting member is arranged at the upper position of the front end face of the gantry 1, and the two lower traction connecting members are respectively arranged at the two bottom ends of the front end face of the gantry 1.

[0026] In some embodiments, the upper traction connection portion 61 is an upper traction connection member of a three-point suspension mechanism.

[0027] See also Figure 1 and Figure 2 The connecting platform 2 includes a platform frame and a platform plate. The platform frame is connected to the rear end face of the gantry frame 1. The rear end face of the platform frame is provided with a connecting end plate 5. The rear end face of the platform frame is provided with a rotary tiller deployment limit end face 21. When the gantry mechanism of this embodiment is connected and used in coordination with the rotary tiller body, both rotary tiller connection mechanisms 4 are connected with the rotary tiller mechanism. Under the action of the rotary tiller connection mechanism 4, the rotary tiller body rotates relative to the gantry mechanism, thereby realizing the deployment or folding of the heavy paddy field folding rotary tiller. When the heavy paddy field folding rotary tiller is deployed to the working state, the upper end face of the rotary tiller body contacts the deployment limit end face 21 of the rotary tiller, and the platform frame limits the further deployment of the two rotary tillers.

[0028] The platform plate is arranged on the platform frame, and the transmission box mounting position is arranged on the platform plate.

[0029] See also Figure 1-Figure 3 In order to facilitate the installation of various functional components suitable for controlling the rotary tiller body on the gantry mechanism, folding drive member connectors are provided on both side end surfaces of the gantry 1, and the two folding drive member connectors are symmetrically distributed on both sides of the gantry 1. The folding drive member connector is used to install the folding drive member, and the folding drive member connector includes a mounting pin rotatably mounted on the side wall of the gantry 1. When in use, the folding drive member is installed on the folding drive member connector and rotates relative to the gantry 1. The telescopic part of the folding drive member is connected to the folding body and drives the folding body to rotate between the unfolded position and the folded position relative to the gantry 1;

[0030] Safety pendant connectors are provided on both side end surfaces of the gantry 1. The two safety pendant connectors are symmetrically distributed on both sides of the gantry 1. The safety pendant connectors are used to install safety pendants. The safety pendant connectors include mounting pins rotatably mounted on the side walls of the gantry 1. When in use, the safety pendant is mounted on the safety pendant connector and rotates relative to the gantry 1. When the folding body is in the folding position, the end of the safety pendant hooks the folding body to prevent the folding body from losing control and flipping to the unfolded position.

[0031] A hanger drive connecting member is also provided on the end faces of both sides of the gantry 1. The two hanger drive connecting members are symmetrically distributed on both sides of the gantry 1. The hanger drive connecting member is used to install the hanger drive member. The hanger drive member includes a mounting pin rotatably installed on the side wall of the gantry 1. When in use, the hanger drive member is installed on the hanger drive mounting member and rotates relative to the gantry 1. The telescopic part of the hanger drive member is connected to the safety hanger and drives the safety hanger to rotate relative to the gantry 1.

[0032] In some embodiments, in order to simplify the structure, the folding drive member connector and the safety pendant connector are the same.

[0033] See also Figure 1-Figure 3 As a preferred embodiment, the gantry 1 includes a gantry support tube and a gantry plate. The two gantry plates are symmetrically arranged on the front and rear sides of the gantry support tube and connected to the gantry support tube. A reinforcing plate is arranged between the two gantry plates at the upper and side parts. The gantry plate, the gantry support tube and the reinforcing plate form a stable triangular gantry structure. The connecting platform 2 is a first box fixing plate. The first box fixing plate is located at the rear end of the gantry support tube. The upper end surface of the first box fixing plate is flush with the upper end surface of the gantry support tube. The transmission box is installed on the upper plate surface of the first box fixing plate. The lower end of the first box fixing plate is fixed with a reinforcing structure to enhance the bearing capacity of the first box fixing plate. A second box fixing plate is vertically fixed at the rear end of the first box fixing plate. The second box fixing plate is the connecting end plate 5. The second box fixing plate is connected to the gantry through an arched support arm. The arched support arm pulls the second box fixing plate to further enhance the overall strength of the gantry mechanism. A rotary tiller connection hole is provided between the two side ends of the gantry plate and the second box fixing plate. The rotary tiller connection hole is used to rotate and install the rotary tiller connection mechanism through a pin shaft, so as to connect with the rotary tiller frame. The pin shaft is the rotation center of the folding / unfolding of the rotary tiller frame. The three-point suspension mechanism is arranged at the front of the gantry structure. The three-point suspension method enhances the stability of the folding farmland machine when connected to the tractor. Wear-resistant sleeves are added to each suspension hole of the three-point suspension mechanism to increase the service life of the gantry mechanism.

[0034] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gantry mechanism for a heavy-duty paddy field folding rotary tiller, characterized in that: The invention comprises a gantry (1), a connecting platform (2), a support arm (3) and a rotary tiller connecting mechanism (4); the rear end surface of the gantry (1) is provided with a connecting platform (2); the rear end surface of the connecting platform (2) is provided with a connecting end plate (5); the connecting end plate (5) is provided with a supporting arm (3) and the supporting arm (3) is connected to the gantry (1); a transmission box installation position is provided on the connecting platform (2) below the supporting arm (3); a transmission clearance opening is provided on the gantry (1) at a position corresponding to the transmission box installation position; rotary tiller connecting mechanisms (4) are provided at opposite side ends of the connecting platform (2); the rotary tiller connecting mechanism (4) comprises a connecting shaft, a rotating member and a rotary tiller connecting member (41); the connecting shaft is provided at a side end of the connecting platform (2) and is connected to the gantry (1) and the connecting end plate (5); the rotating member is provided on the connecting shaft and rotates relative to the connecting shaft; the rotating part of the rotating member is provided with a rotary tiller connecting member (41).

2. The gantry mechanism of a heavy-duty paddy field folding rotary tiller according to claim 1 is characterized in that: The rotary tiller connecting piece (41) comprises a clamping type connecting piece.

3. The gantry mechanism of the heavy-duty paddy field folding rotary tiller according to claim 2 is characterized in that: A gantry traction member (6) is provided at the top of the gantry frame (1), a connection slot is provided on the gantry traction member (6), the gantry frame (1) passes through the connection slot and is connected to the gantry traction member (6), an upper traction connection portion (61) and a support arm connection portion (62) are provided on the gantry traction member (6), and the upper traction connection portion (61) and the support arm connection portion (62) are respectively located at the front and rear sides of the gantry frame (1).

4. The gantry mechanism of the heavy-duty paddy field folding rotary tiller according to claim 3 is characterized in that: A three-point suspension mechanism is arranged on the front end surface of the gantry (1), the three-point suspension mechanism comprising an upper traction connection member and two lower traction connection members, the upper traction connection member is an upper traction connection portion (61), and the two lower traction connection members are respectively arranged at two bottom ends of the front end surface of the gantry (1).

5. The gantry mechanism of the heavy-duty paddy field folding rotary tiller according to claim 3 is characterized in that: The connecting platform (2) comprises a platform frame and a platform plate. The platform frame is connected to the rear end surface of the gantry frame (1). The bottom end of the platform frame is provided with a rotary tiller expansion limit end surface (21). The platform plate is arranged on the platform frame and a transmission box installation position is arranged on the platform plate.

6. The gantry mechanism of the heavy-duty paddy field folding rotary tiller according to claim 5, characterized in that: Folding drive member connectors are provided on both side end surfaces of the gantry (1), and the two folding drive member connectors are symmetrically distributed on both sides of the gantry (1); safety pendant connectors are provided on both side end surfaces of the gantry (1), and the two safety pendant connectors are symmetrically distributed on both sides of the gantry (1); pendant drive member connectors are also provided on both side end surfaces of the gantry (1), and the two pendant drive member connectors are symmetrically distributed on both sides of the gantry (1).

7. The gantry mechanism of the heavy-duty paddy field folding rotary tiller according to claim 6, characterized in that: The folding drive member connector and the safety pendant connector are the same.

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