Gantry mechanism of folding returning machine

Abstract

The utility model relates to the technical field of folding type tillage and soil preparation mechanical equipment, in particular to a gantry mechanism of a folding field returning machine, which comprises a gantry supporting pipe, two gantry plates, a reinforcing plate, a box body fixing plate and a three-point suspension structure, the two gantry plates are symmetrically and fixedly arranged at the front end and the rear end of the gantry supporting pipe, and the reinforcing plate is fixedly arranged between the two gantry plates. The two gantry plates, the reinforcing plate and the gantry supporting pipe form a stable triangular gantry structure, the box fixing plate is located at the rear end of the gantry supporting pipe, the upper end face of the box fixing plate is flush with the upper end face of the gantry supporting pipe, the reinforcing supporting plate is fixedly arranged at the lower end of the box fixing plate, and the bearing capacity of the box fixing plate can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable tillage machinery and equipment, in particular to a gantry mechanism of a foldable tillage machine. Background Art

[0002] The gantry of existing tillage machinery is composed of plate-type suspension parts, which is weak in strength; it has a single suspension point and poor stability. Since the folding farmland machine needs to unfold or fold the machine body, it needs a gantry structure with a reasonable structure and high strength. The gantry structure not only needs to have the necessary connection points for the machine body to unfold or fold, but also needs to meet the strength required for the machine body to unfold or fold, and it also needs to be convenient for connection and use with a variety of tractors. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a gantry mechanism of a folding farmland returning machine. The two ends of the bottom of the gantry bracket are connected to the two ends of the gantry bottom support. In addition to folding frame connectors, folding drive connectors and safety pendant connectors for connecting parts required for folding the machine body, the gantry bracket is also provided with a reinforcing pull plate connector, which is convenient for setting a reinforcing pull plate to further improve the strength of the gantry mechanism.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a gantry mechanism of a folding farmland returning machine, including a gantry bottom support, a gantry bracket and a three-point suspension mechanism, the gantry bracket is arranged on the gantry bottom support and the two bottom ends of the gantry bracket are respectively connected to the two ends of the gantry bottom support, the inner end surface of the gantry bracket and the upper end surface of the gantry bottom support form a transmission clearance port, and the two side end surfaces of the gantry bracket are provided with folding frame connecting parts, the two folding frame connecting parts are respectively located at the two ends of the gantry bottom support, and the side end surfaces of the gantry bracket are provided with folding frame connecting parts. A folding drive connector is arranged above the folding frame connector, and a safety hanger connector is arranged above the folding drive connector on the side end surface of the gantry bracket, and a reinforcing plate connector is also arranged on the rear end surface of the gantry bracket; the three-point suspension mechanism includes an upper traction connector and a lower traction connector, the upper traction connector is arranged on the front end surface of the gantry bracket and is located above the transmission clearance port, at least two upper traction connection holes are arranged on the upper traction connector, and lower traction connectors are arranged at both bottoms of the front end surface of the gantry bracket. The bottom ends of the gantry bracket are connected to the gantry bottom support to form a gantry structure, and two folding frame connectors, two folding drive connectors and two safety hanger connectors are symmetrically arranged on the gantry bracket, and a reinforcing plate connector is also arranged at the top rear end of the gantry bracket. The three-point suspension mechanism is arranged on the front end surface of the gantry bracket and is distributed at three points.

[0005] As an optional solution, the reinforcing plate connector includes a traction plate, which is arranged on the top of the gantry bracket, the rear end of which extends out of the rear end surface of the gantry bracket and is provided with a reinforcing plate connector hole; the upper traction connector includes a traction ear plate, which is vertically arranged on the front end surface of the gantry bracket and connected to the front end of the traction plate, and the traction ear plate is provided with at least two upper traction connector holes. The reinforcing plate connector and the upper traction connector are integrated together, which not only simplifies the structure, but also enables better connection with the gantry bracket.

[0006] As an optional solution, each upper traction connection hole is arranged along an arc from top to bottom. A plurality of upper traction connection holes are distributed along an arc, which is suitable for using the folding farmland returning machine using the gantry mechanism of the present application with tractors of various specifications.

[0007] As an optional solution, there are at least two traction pull plates, the plate surfaces of the traction pull plates are facing each other, and the front end of each traction pull plate is connected to a traction ear plate.

[0008] As an optional solution, the lower traction connecting member includes a connecting seat and a traction connecting plate. The connecting seat is arranged on the gantry bracket and is provided with a mounting pin. At least two traction connecting plates are arranged on the mounting pin. The plate surfaces of each traction connecting plate are facing each other and each traction connecting plate is provided with a lower traction connecting hole.

[0009] As an optional solution, the gantry support includes two gantry plates, the plate surfaces of the two gantry plates are opposite and the two gantry plates are connected by a plurality of reinforcing connecting plates, the gantry bottom support is arranged between the two gantry plates and connected to both gantry plates, and the two opposite ends of the gantry bottom support are provided with folding frame expansion limit end faces. The folding frame expansion limit end faces are arranged at both ends of the gantry bottom support, which can prevent the folding frame of the folding farmland returning machine from being over-expanded.

[0010] As an optional solution, the folding frame connector, the folding drive connector and the safety pendant connector all include a connecting pin, which is arranged between the two gantry plates and rotatably connected to the two gantry plates, and a connecting position is arranged on the connecting pin.

[0011] As an optional solution, a gearbox mounting platform is provided on the rear end surface of the gantry bottom support.

[0012] Compared with the prior art, the utility model has the following beneficial effects: in the gantry mechanism of the utility model, a reinforcing pull plate connecting piece is arranged at the top end of the rear end surface of the gantry bracket. After the gantry mechanism is applied to the folding field returning machine, the reinforcing pull plate is used to connect the gantry bracket and the gearbox mounting platform or other structures of the folding field returning machine, thereby effectively improving the strength of the gantry mechanism; at least two upper traction connecting holes are arranged on the upper traction connecting piece, and the folding field returning machine using the utility model can be adapted to more types of tractors; folding frame connecting pieces, folding drive connecting pieces and safety hanging connecting pieces are arranged on both sides of the gantry bracket to meet the connection requirements of various components of the folding field returning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1 It is a three-dimensional structural diagram of the gantry mechanism from the front side perspective;

[0015] Figure 2 for Figure 1 The structural diagram of the front gantry plate is omitted;

[0016] Figure 3 This is a three-dimensional structural diagram of the gantry mechanism from the rear side perspective;

[0017] Figure 4 It is a schematic diagram of the connection and cooperation between the gantry mechanism and the folding frame;

[0018] In the figure: 1. Gantry bottom support, 101. Folding frame unfolding limit end surface, 2. Gantry bracket, 3. Transmission clearance port, 4. Folding frame connecting piece, 5. Folding drive connecting piece, 6. Safety pendant connecting piece, 7. Strengthening pull plate connecting piece, 8. Upper traction connecting piece, 9. Lower traction connecting piece, 10. Gearbox mounting platform. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-Figure 4As shown, a gantry mechanism of a foldable farmland return machine includes a gantry base support 1, a gantry bracket 2 and a three-point suspension mechanism. The gantry base support 1 and the gantry bracket 2 form a structurally stable gantry structure. The three-point suspension mechanism is installed on the gantry structure to facilitate the connection and coordination of the gantry structure with a tractor or other tractor.

[0021] The gantry crossbeam is made of square steel or other square tube structure. The gantry bracket 2 is in the shape of a gantry frame. The gantry bracket 2 is arranged on the gantry bottom support 1. The two bottom ends of the gantry bracket 2 are respectively connected to the two ends of the gantry bottom support 1. The gantry bracket 2 and the gantry crossbeam are combined to form a stable gantry structure. The inner end surface of the gantry bracket 2 and the upper end surface of the gantry crossbeam form a transmission clearance opening 3. The transmission clearance opening 3 is used for the transmission parts to pass through so that the power of the tractor can be transmitted to the gearbox of the folding field return machine.

[0022] Folding frame connecting parts 4 are arranged on the two side end surfaces of the gantry bracket 2, and the two folding frame connecting parts 4 are respectively located at the two ends of the gantry bottom support 1 and on both sides of the transmission clearance port 3. The folding frame of the folding field returning machine is connected to the gantry mechanism through the folding frame connecting parts 4; on the two side end surfaces of the gantry bracket 2, a folding drive connecting part 5 is arranged above the folding frame connecting part 4, and the two folding drive connecting parts 5 are symmetrically distributed on both sides of the transmission clearance port 3. The folding drive connecting part 5 is used to install the folding drive of the folding field returning machine, and the telescopic part of the folding drive is connected to the folding frame so as to drive the two folding frames to fold or unfold; on the two side end surfaces of the gantry bracket 2, a safety pendant connecting part 6 is arranged above the folding drive connecting part, and the safety pendant connecting part 6 is used to install the safety pendant. After the folding frame is folded, the safety pendant is used to hook the folding frame to avoid the folding frame from losing control and causing safety problems. At the same time, it can also reduce the load of the folding drive and extend the service life of the folding drive.

[0023] The rear end face of the gantry bracket 2 is also provided with a reinforcing pull plate connector 7; when the gantry mechanism of this embodiment is applied to a folding farmland returning machine, a reinforcing pull plate can be used to connect the reinforcing pull plate connector 7 and the fixed body part of the folding farmland returning machine, thereby improving the strength of the gantry mechanism.

[0024] The three-point suspension mechanism includes an upper traction connection member 8 and two lower traction connection members 9, wherein the upper traction connection member 8 is arranged on the front end surface of the gantry bracket 2, and the upper traction connection member 8 is located above the transmission yielding port 3, and the two lower traction connection members 9 are arranged on the front end surface of the gantry bracket 2 and are respectively located at two bottom positions of the front end surface of the gantry bracket 2. Through the upper traction connection member 8 and the two lower traction connection members 9, the gantry mechanism can be stably connected with a tractor or other tractor, so that the folding field returning machine can be used in conjunction with a tractor or other tractor. The upper traction connection member 8 is provided with at least two upper traction connection holes, and the tractor is connected to the corresponding upper traction connection holes according to the specifications of the tractor used, and the adaptability is strong.

[0025] Please note that Figure 1-Figure 3 The direction identification in the application document, the front, rear, up, down and other direction indicators are consistent with the indicated direction of the gantry mechanism of this embodiment relative to the tractor when actually used. When the gantry mechanism is applied to the folding field return machine and used in combination with the tractor, the front direction of the tractor and the front direction of the gantry bracket 2 refer to the same direction.

[0026] See also Figure 4 When the gantry mechanism of this embodiment is applied to the folding field return machine, the two folding frames of the folding field return machine are respectively connected to the two folding frame connectors 4, the two traction drive members of the folding field return machine are respectively connected to the two folding drive member connectors 5, the telescopic parts of the two folding drive members are connected to the two folding frames, and the two folding drive members can drive the two folding frames to rotate relative to the gantry mechanism, thereby realizing the unfolding or folding of the folding field return machine; the two safety hangers of the folding field return machine are respectively installed on the two safety hanger connectors 6 of the gantry mechanism, when the folding field return machine is in a folded state, the two safety hangers are connected to the folding frames to improve the safety of the folding field return machine; the gantry mechanism and the fixed parts of the folding field return machine are connected by a reinforcing pull plate to improve the strength of the gantry structure. When used in combination with a tractor, the folding field return machine is installed on the tractor using a three-point suspension mechanism, and the tractor drives the field return. In some embodiments, a telescopic part connection position is also provided on the gantry bracket above the two safety pendant connectors 6. The telescopic part connection position is used to install a telescopic part for driving and adjusting the safety pendant. The telescopic part drives the safety pendant connected thereto to rotate around the safety pendant connector.

[0027] See also Figure 1-Figure 3 As a specific example of the reinforcing plate connector 7 and the upper traction connector 8, the reinforcing plate connector 7 includes a traction plate, which is arranged on the top of the gantry bracket 2 and fixedly connected to the gantry bracket 2. The rear end of the traction plate extends out of the rear end surface of the gantry bracket 2 and is provided with a reinforcing plate connection hole. The reinforcing plate can be connected to the reinforcing plate connector 7 through the reinforcing plate connection hole and the bolt structure. The upper traction connector 8 includes a traction ear plate, which is vertically arranged on the front end surface of the gantry bracket 2 and connected to the front end surface of the gantry bracket 2. The traction ear plate is also connected to the front end of the traction plate, and at least two upper traction connection holes are provided on the traction ear plate. Preferably, as Figure 1 and Figure 2 As shown, there are three or four upper traction connection holes, and on the traction ear plate, the upper traction connection holes are arranged from top to bottom and along an arc.

[0028] In order to ensure that the reinforcing plate connector 7 and the upper traction connector 8 have sufficient strength, there are at least two traction plates, and the plate surfaces of each traction plate are facing each other. Preferably, there are two traction plates, and the plate surfaces of the two traction plates are facing each other and are reinforced and connected by a reinforcing connecting plate. The reinforcing plate connecting holes on the two traction plates are also facing each other. Each traction plate has a corresponding traction ear plate and the front end of each traction plate is connected to a traction ear plate, and adjacent traction ear plates are also connected and reinforced by a reinforcing connecting plate.

[0029] As a specific example of the lower traction connecting member 9, see Figure 1 and Figure 2 The lower traction connecting member 9 includes a connecting seat and a traction connecting plate. The connecting seat is arranged on the front end surface of the gantry bracket 2 and is connected to the gantry bracket 2. A mounting pin is arranged on the connecting seat. A traction connecting plate is arranged on the mounting pin. A lower traction connecting hole is arranged on the traction connecting plate. The traction vehicle can be connected to the lower traction connecting member 9 through the lower traction connecting hole and the matching connecting structure.

[0030] In a further embodiment, in order to improve the connection effect with the tractor, at least two traction connection plates are arranged on the mounting pin shaft, the plate surfaces of each traction connection plate are facing each other and each traction connection plate is provided with an upper traction connection hole.

[0031] In a further embodiment, a hanging plate is provided on the top of the gantry bracket, the hanging plate is connected to each traction pull plate, and a telescopic member connecting hole is provided on the hanging plate, and the telescopic member connecting hole is a telescopic member connecting position.

[0032] See also Figure 1-Figure 3 The gantry bracket 2 includes two gantry plates, the plate surfaces of the two gantry plates are opposite to each other and the two gantry plates are connected by a plurality of reinforcing connecting plates. In the front-to-back direction, the gantry bottom support 1 is located between the two gantry plates, and the ends of the gantry bottom support 1 are connected to both gantry plates. The two ends of the gantry bottom support 1 are respectively located at the two side end positions of the gantry bracket 2, and the two ends of the gantry bottom support 1 are provided with folding frame expansion limit end faces 101. When the gantry mechanism of this embodiment is applied to a folding farmland returning machine, in order to avoid excessive expansion of the folding frame, when the folding frame is expanded to the maximum expansion state, the end of the folding frame close to the gantry mechanism contacts the corresponding folding frame expansion limit end face 101.

[0033] See also Figure 1-Figure 3As a specific example of the folding frame connector 4, the folding drive connector 5 and the safety pendant connector 6, the folding frame connector 4, the folding drive connector 5 and the safety pendant connector 6 all include a connecting pin, which is arranged between the two gantry plates and is rotatably connected to the two gantry plates, and a connecting position is arranged on the connecting pin. For the folding frame connector 4, a rotating sleeve is arranged on the connecting pin, and the outer end surface of the rotating sleeve is a connecting position suitable for the connection of the folding frame; for the folding drive connector 5, two spacers are arranged on the connecting pin, and the position between the two spacers on the connecting pin is a connecting position suitable for the end connection of the folding drive; for the safety pendant connector 6, the outer end surface of the connecting pin is a connecting position suitable for installing the pendant.

[0034] In some embodiments, a gearbox mounting platform 10 is provided on the rear end face of the gantry bottom support 1, and the gearbox of the folding farmland returning machine is installed on the gearbox mounting platform 10 and its transmission part corresponds to the transmission yielding port 3, so as to facilitate the transmission connection of the tractor.

[0035] As a preferred embodiment, please refer to Figure 1-Figure 3 The gantry bottom support 1 is a gantry support tube, and the gantry bracket 2 includes two gantry plates, which are symmetrically arranged at the front and rear ends of the gantry support tube, and the two gantry plates are fixedly connected to the gantry support tube. Reinforcement plates are arranged at the upper end, the lower end and the side end between the two gantry plates. The gantry support tube and the two gantry plates and the reinforcement plates between the two gantry plates are combined to form a stable triangular gantry frame structure. A box fixing plate is arranged at the rear end of the gantry support tube, and the upper plate surface of the box fixing plate is flush with the upper end surface of the gantry support tube. The upper plate surface of the box fixing plate is a gearbox mounting platform 10, and a reinforcing support plate is fixedly arranged at the lower end of the box fixing plate to enhance the bearing capacity of the box fixing plate.

[0036] Safety pendant support plates are provided at both ends of each gantry plate, and the installation pendant support plates are provided with hanging frame connecting holes, folding drive member connecting holes and safety pendant connecting holes. The gantry bracket is connected to the folding frame of the folding field return machine by a pin shaft passing through two corresponding hanging frame connecting holes to realize the unfolding and folding of the folding frame. The safety pendant is connected to the pin shaft passing through two corresponding safety pendant connecting holes, and the safety pendant is connected to the gantry bracket through a retractable hydraulic rod or a pneumatic rod. The three-point suspension mechanism is arranged at the front of the gantry mechanism. The three-point suspension enhances the stability of the folding field return machine when it is connected to the tractor. Each suspension hole of the three-point suspension mechanism is provided with a wear-resistant sleeve, which improves the service life of the gantry mechanism.

[0037] 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.

[0038] 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 of a foldable farmland returning machine, characterized in that: The invention comprises a gantry bottom support (1), a gantry bracket (2) and a three-point suspension mechanism, wherein the gantry bracket (2) is arranged on the gantry bottom support (1) and the two bottom ends of the gantry bracket (2) are respectively connected to the two end portions of the gantry bottom support (1), the inner end surface of the gantry bracket (2) and the upper end surface of the gantry bottom support (1) form a transmission clearance opening (3), the two side end surfaces of the gantry bracket (2) are provided with folding frame connecting parts (4), the two folding frame connecting parts (4) are respectively located at the two ends of the gantry bottom support (1), and the side end surfaces of the gantry bracket (2) are provided with folding drive parts above the folding frame connecting parts (4). A moving part connecting piece (5) is provided, and a safety hanging part connecting piece (6) is provided on the side end surface of the gantry bracket (2) above the folding driving part connecting piece (5), and a reinforcing pull plate connecting piece (7) is also provided on the rear end surface of the gantry bracket (2); the three-point suspension mechanism comprises an upper traction connecting piece (8) and a lower traction connecting piece (9), the upper traction connecting piece (8) is provided on the front end surface of the gantry bracket (2) and above the transmission yielding opening (3), at least two upper traction connecting holes are provided on the upper traction connecting piece (8), and lower traction connecting pieces (9) are provided at both bottoms of the front end surface of the gantry bracket (2).

2. The gantry mechanism of a foldable farmland returning machine according to claim 1, characterized in that: The reinforcing plate connecting member (7) comprises a traction plate, the traction plate being arranged on the top of the gantry bracket (2), the rear end of the traction plate extending out of the rear end surface of the gantry bracket (2) and being provided with a reinforcing plate connecting hole; the upper traction connecting member (8) comprises a traction ear plate, the traction ear plate being arranged vertically on the front end surface of the gantry bracket (2) and being connected to the front end of the traction plate, the traction ear plate being provided with at least two upper traction connecting holes.

3. The gantry mechanism of the foldable farmland returning machine according to claim 2, characterized in that: The upper traction connection holes are arranged along an arc from top to bottom.

4. The gantry mechanism of the foldable farmland returning machine according to claim 2, characterized in that: There are at least two traction pull plates, the plate surfaces of the traction pull plates are facing each other, and the front end of each traction pull plate is connected with a traction ear plate.

5. The gantry mechanism of the foldable farmland returning machine according to claim 2, characterized in that: The lower traction connection member (9) comprises a connection seat and a traction connection plate, the connection seat being arranged on the gantry bracket (2) and provided with a mounting pin, at least two traction connection plates being arranged on the mounting pin, the plate surfaces of the traction connection plates being opposite to each other and the lower traction connection holes being arranged on the traction connection plates.

6. A gantry mechanism of a foldable farmland returning machine according to any one of claims 1 to 5, characterized in that: The gantry support (2) comprises two gantry plates, the plate surfaces of the two gantry plates are opposite to each other and the two gantry plates are connected via a plurality of reinforcing connecting plates, the gantry bottom support (1) is arranged between the two gantry plates and connected to both gantry plates, and the two opposite ends of the gantry bottom support (1) are provided with folding frame unfolding limit end surfaces (101).

7. The gantry mechanism of the foldable farmland returning machine according to claim 6, characterized in that: The folding frame connecting piece (4), the folding drive connecting piece (5) and the safety hanging connecting piece (6) all include a connecting pin shaft, the connecting pin shaft is arranged between the two gantry plates and is rotatably connected to the two gantry plates, and a connecting position is arranged on the connecting pin shaft.

8. A gantry mechanism of a foldable farmland returning machine according to any one of claims 1 to 5, characterized in that: A gearbox mounting platform (10) is provided on the rear end surface of the gantry bottom support (1).

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