Novel front counterweight adjusting system and tractor

Abstract

The invention relates to a novel front counterweight adjusting system and a tractor, the front counterweight adjusting system comprises a front counterweight assembly, an outer support and an inner support, and the outer support is fixedly arranged; the inner support can slide horizontally and is installed on the outer support in a positioned mode, and the front counterweight assembly is installed on the inner support. The tractor has the advantages that the structure is simple, design is reasonable, the distance between the front balance weight and the gravity center of the whole tractor can be adjusted through the hydraulic oil cylinder, and therefore the mass ratio of the front wheels to the rear wheels of the tractor is adjusted, and the effects of reducing soil compaction and saving fuel consumption are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tractors, and in particular to a novel front counterweight adjustment system and a tractor. Background Art

[0002] Tractors are important mechanical equipment in agricultural production, and their working efficiency is crucial. During agricultural operations, tractors need to adjust the weight of counterweights according to different agronomic requirements to maximize traction efficiency and save fuel. During heavy-load operations, if the number of counterweights is insufficient, the tires are prone to slipping during operation, destroying the soil aggregate structure, causing energy waste, and increasing fuel consumption. During light-load operations, if there are too many counterweights, the land will be compacted, affecting agricultural production. At the same time, because the vehicle is too heavy, it also causes excessive fuel consumption. Therefore, during agricultural production, the number of tractor counterweights needs to be adjusted according to agronomic requirements.

[0003] Existing tractor front counterweights generally adopt a multi-piece counterweight structure. The weight of the tractor front counterweight can be installed with different numbers of counterweight pieces according to agronomy. When adjusting the counterweight with this structure, the counterweight pieces need to be replaced, which is labor-intensive. Summary of the invention

[0004] The invention provides a novel front counterweight adjustment system and a tractor, aiming to solve the problems in the prior art.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A novel front counterweight adjustment system comprises a front counterweight assembly, an outer bracket and an inner bracket, wherein the outer bracket is fixedly arranged; the inner bracket can be horizontally slidable and positioned on the outer bracket, and the front counterweight assembly is mounted on the inner bracket.

[0007] The beneficial effects of the present invention are as follows: during use, when the front counterweight assembly needs to be extended, the inner bracket is moved in a manner that can be thought of by a person skilled in the art, so that the front counterweight assembly is extended forward, thereby increasing the proportion of the front axle load;

[0008] When the front counterweight assembly needs to be retracted, the inner bracket is moved in the opposite direction in a manner that can be thought of by a person skilled in the art, so that the front counterweight assembly is retracted, the proportion of the front axle load is reduced, and the adjustment is convenient.

[0009] The present invention has a simple structure and a reasonable design. The distance between the front counterweight and the center of gravity of the whole vehicle can be adjusted to adjust the mass ratio of the front and rear wheels of the tractor, thereby reducing soil compaction and saving fuel consumption.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the inner bracket and the outer bracket are U-shaped brackets respectively, and the two sides of the inner bracket are respectively horizontally slidably connected and positioned with the two sides of the outer bracket; the front counterweight assembly is installed on the closed end of the inner bracket.

[0012] The beneficial effect of adopting the above further solution is that the structure is simple, and the shapes of the inner bracket and the outer bracket are reasonably designed, which ensures that the inner bracket can move stably, thereby adjusting the position of the inner bracket and the front counterweight assembly thereon.

[0013] Furthermore, sliding grooves with one end open are respectively provided on both sides of the open end of the outer bracket, and both sides of the open end of the inner bracket extend into the two sliding grooves respectively, and are slidably connected and positioned with the two sliding grooves respectively.

[0014] The beneficial effects of adopting the above further solution are simple structure and reasonable design. By setting the sliding groove, the inner bracket can move stably on the outer bracket, thereby adjusting the position of the inner bracket and the front counterweight assembly thereon.

[0015] Furthermore, it also includes an oil cylinder, which is arranged in the outer bracket, and its two ends are rotatably connected to the closed end of the outer bracket and the closed end of the inner bracket respectively.

[0016] The beneficial effect of adopting the above further solution is that during use, when the front counterweight assembly needs to be extended, the extension of the oil cylinder is used to drive the inner bracket to move, so that the front counterweight assembly is extended forward, increasing the proportion of the front axle load;

[0017] When the front counterweight assembly needs to be retracted, the extension and retraction of the oil cylinder is used to drive the inner bracket to move, thereby retracting the front counterweight assembly, reducing the proportion of the front axle load and facilitating adjustment.

[0018] Furthermore, it also includes a reversing valve, on which interface 1, interface 2, interface 3 and interface 4 are provided, wherein interface 1 is connected to interface 2 and interface 3 is connected to interface 4, or interface 1 is connected to interface 3 and interface 2 is connected to interface 4; interface 1 and interface 2 are respectively connected to two independent oil chambers in the oil cylinder through pipelines.

[0019] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, and utilizing the reversing valve to supply oil or return oil to the oil cylinder, thereby realizing the extension and retraction of the oil cylinder, and convenient operation.

[0020] Furthermore, the front counterweight assembly includes a plurality of front counterweight plates, and the plurality of front counterweight plates are respectively mounted on the closed ends of the inner bracket.

[0021] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, and use of multiple front counterweight plates for counterweighting. At the same time, the number of front counterweight plates can be adjusted according to needs to change the proportion of front axle load.

[0022] Furthermore, the plurality of front weight plates are connected together by long bolts.

[0023] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and convenient assembly by connecting multiple front counterweight plates together using long bolts.

[0024] Furthermore, the plurality of front weight plates are arranged side by side and are fitted with each other, and a slot is respectively provided on one end thereof; the closed end of the inner bracket is snapped into the slot and snapped with the slot.

[0025] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing multiple slots on multiple front counterweight plates to realize connection with the inner bracket, which is convenient for assembly and saves time and effort.

[0026] Furthermore, a pair of locking holes are respectively provided at one end of the plurality of front counterweight plates corresponding to the positions in the locking slot, a groove is provided at the closed end of the inner bracket, and a pair of through holes are respectively provided on both sides of the groove; the pair of through holes can be connected to any pair of the locking holes, a pin shaft is inserted into the pair of through holes and the corresponding pair of locking holes, and an elastic locking pin is clamped with the position of the pin shaft corresponding to the groove.

[0027] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. Multiple front counterweight plates are assembled on the inner bracket by using pins, and elastic locking pins are used to prevent the pins from moving, thereby ensuring the stability of the assembly of multiple front counterweight plates.

[0028] The invention also relates to a tractor comprising the novel front counterweight adjustment system as described above.

[0029] The beneficial effect of adopting the above further scheme is that the present invention also provides a tractor with a simple structure and reasonable design. The distance between the front counterweight and the center of gravity of the whole vehicle can be adjusted to adjust the mass ratio of the front and rear wheels of the tractor, thereby achieving the effect of reducing soil compaction and saving fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an assembly diagram of the present invention;

[0031] Figure 2 An exploded view of the present invention;

[0032] Figure 3 It is an assembly diagram of the adjustment system of the present invention on a tractor.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Outer bracket; 2. Inner bracket; 3. Sliding groove; 4. Oil cylinder; 5. Reversing valve; 6. Front counterweight; 7. Long bolt; 8. Slot; 9. Slot hole; 10. Groove; 11. Through hole; 12. Pin; 13. Elastic locking pin; 14. Rotating pin. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] Example 1

[0040] like Figures 1 to 3 As shown, this embodiment provides a novel front counterweight adjustment system, including a front counterweight assembly, an outer bracket 1 and an inner bracket 2, wherein the outer bracket 1 is fixedly arranged; the inner bracket 2 can be horizontally slid and positioned on the outer bracket 1, and the front counterweight assembly is installed on the inner bracket 2.

[0041] During use, when the front counterweight assembly needs to be extended, the inner bracket 2 is moved in a manner that can be imagined by a person skilled in the art, so that the front counterweight assembly is extended forward, increasing the proportion of the front axle load;

[0042] When the front counterweight assembly needs to be retracted, the inner bracket 2 is moved in the opposite direction in a manner that can be imagined by a person skilled in the art, so that the front counterweight assembly is retracted, the proportion of the front axle load is reduced, and the adjustment is convenient.

[0043] This embodiment has a simple structure and a reasonable design. The distance between the front counterweight and the center of gravity of the vehicle can be adjusted to adjust the mass ratio of the front and rear wheels of the tractor, thereby reducing soil compaction and saving fuel consumption.

[0044] Example 2

[0045] On the basis of Example 1, in this embodiment, the inner bracket 2 and the outer bracket 1 are respectively U-shaped brackets, and the two sides of the inner bracket 2 are horizontally slidably connected and positioned with the two sides of the outer bracket 1; the front counterweight assembly is installed on the closed end of the inner bracket 2.

[0046] This solution has a simple structure, and the shapes of the inner bracket 2 and the outer bracket 1 are reasonably designed, ensuring that the inner bracket 2 can move stably, thereby adjusting the position of the inner bracket 2 and the front counterweight assembly thereon.

[0047] Example 3

[0048] On the basis of Example 2, in this embodiment, sliding grooves 3 with one end open are respectively provided on both sides of the open end of the outer bracket 1, and both sides of the open end of the inner bracket 2 extend into the two sliding grooves 3 respectively, and are slidably connected and positioned with the two sliding grooves 3 respectively.

[0049] This solution has a simple structure and a reasonable design. By providing the sliding groove 3, the inner bracket 2 can move stably on the outer bracket 1, thereby adjusting the position of the inner bracket 2 and the front counterweight assembly thereon.

[0050] Alternatively, sliding grooves are provided on the inner walls at both sides of the open end of the outer bracket 1, and both sides of the open end of the inner bracket 2 are slidably connected to the two sliding grooves through sliders.

[0051] Example 4

[0052] On the basis of any one of Examples 2 to 3, this embodiment further includes an oil cylinder 4, which is disposed in the outer bracket 1, and whose two ends are rotatably connected to the closed end of the outer bracket 1 and the closed end of the inner bracket 2 respectively.

[0053] During use, when the front counterweight assembly needs to be extended, the extension of the oil cylinder 4 is used to drive the inner bracket 2 to move, so that the front counterweight assembly extends forward and increases the proportion of the front axle load;

[0054] When the front counterweight assembly needs to be retracted, the extension and contraction of the oil cylinder 4 is utilized to drive the inner bracket 2 to move, thereby retracting the front counterweight assembly, reducing the proportion of the front axle load, and facilitating adjustment.

[0055] Based on the above scheme, a pair of mounting plates are respectively fixedly installed relatively to the closed end of the inner bracket 2 and the closed end of the outer bracket 1, and a pair of penetrating mounting holes are respectively provided on the two pairs of mounting plates, and rotating pins 14 are rotatably installed in the two pairs of mounting holes; through holes are respectively provided at both ends of the cylinder 4, and the two rotating pins 14 respectively penetrate the two through holes and are respectively connected to the two through holes in a transmission manner.

[0056] In addition, the two rotating pins 14 are respectively in a structure with one end being thick and the other end being thin, and the thin ends are respectively provided with threads and are threadedly connected with nuts.

[0057] Example 5

[0058] On the basis of Example 4, this embodiment also includes a reversing valve 5, on which are provided an interface 1, an interface 2, an interface 3 and an interface 4, wherein the interface 1 is connected to the interface 2 and the interface 3 is connected to the interface 4, or the interface 1 is connected to the interface 3 and the interface 2 is connected to the interface 4; the interface 1 and the interface 2 are respectively connected to two independent oil chambers in the oil cylinder 4 through pipelines.

[0059] The solution has a simple structure and a reasonable design. The reversing valve 5 is used to supply oil or return oil to the oil cylinder 4, thereby realizing the extension and retraction of the oil cylinder 4, and the operation is convenient.

[0060] Preferably, in this embodiment, the above-mentioned interface 1 is connected to the oil pump through a pipeline, and the interface 4 can be connected to the oil tank through a pipeline, and the oil tank can recover the oil.

[0061] Example 6

[0062] On the basis of the above embodiments, in this embodiment, the front counterweight assembly includes a plurality of front counterweight plates 6 , and the plurality of front counterweight plates 6 are respectively mounted on the closed ends of the inner bracket 2 .

[0063] This solution has a simple structure and a reasonable design. It uses multiple front counterweight plates 6 for counterweighting. At the same time, the number of front counterweight plates 6 can be adjusted according to needs to change the proportion of the front axle load.

[0064] Preferably, in this embodiment, the plurality of front weight plates 6 are respectively in sheet-like structures.

[0065] Example 7

[0066] On the basis of Example 6, in this embodiment, a plurality of front weight plates 6 are connected together by long bolts 7 .

[0067] This solution has a simple structure and a reasonable design. A plurality of front counterweight plates 6 are connected together by long bolts 7, and the assembly is convenient.

[0068] Based on the above solution, the plurality of front weight plates 6 are relatively provided with through holes for the long bolts 7 to pass through.

[0069] Example 8

[0070] On the basis of Example 7, in this embodiment, a plurality of the front weight plates 6 are arranged side by side and are provided with a slot 8 on one end thereof; the closed end of the inner bracket 2 is snapped into the slot 8 and snapped with the slot 8 .

[0071] This solution has a simple structure and a reasonable design. The plurality of slots 8 on the plurality of front counterweight plates 6 are used to realize the connection thereof on the inner bracket 2, so the assembly is convenient, and time and labor are saved.

[0072] Preferably, in this embodiment, the plurality of slots 8 are respectively in a structure with a narrow slot bottom, a wide slot opening and penetrating both sides.

[0073] Example 9

[0074] On the basis of Example 8, in this embodiment, a pair of locking holes 9 are respectively provided at one end of the plurality of front counterweight plates 6 corresponding to the positions in the locking slot 8, a groove 10 is provided at the closed end of the inner bracket 2, and a pair of through holes 11 are provided on both sides of the groove 10; the pair of through holes 11 can be connected to any pair of the locking holes 9, a pin shaft 12 is inserted into the pair of through holes 11 and the corresponding pair of locking holes 9, and the pin shaft 12 is clamped with an elastic locking pin 13 at the position corresponding to the groove 10.

[0075] This solution has a simple structure and a reasonable design. The plurality of front counterweight plates 6 are assembled on the inner bracket 2 by using the pin shaft 12, and the elastic locking pin 13 is used to prevent the pin shaft 12 from moving, thereby ensuring the stability of the assembly of the plurality of front counterweight plates 6.

[0076] Based on the above solution, a pair of clamping holes 9 corresponding to each clamping slot 8 can be complete circular holes.

[0077] Alternatively, each front weight plate 6 is provided with groove bodies at the parts on both sides corresponding to the groove 10, and the two groove bodies on the side where two adjacent front weight plates 6 are close to each other can be assembled into a complete circular hole body.

[0078] Example 10

[0079] On the basis of the above embodiments, this embodiment further provides a tractor, comprising the novel front counterweight adjustment system as described above.

[0080] The present embodiment also provides a tractor with a simple structure and reasonable design. The distance between the front counterweight and the center of gravity of the vehicle can be adjusted to adjust the mass ratio of the front and rear wheels of the tractor, thereby reducing soil compaction and saving fuel consumption.

[0081] The working principle of the present invention is as follows:

[0082] During use, when the front counterweight assembly needs to be extended, the extension of the oil cylinder 4 is used to drive the inner bracket 2 to move, so that the front counterweight assembly extends forward and increases the proportion of the front axle load;

[0083] When the front counterweight assembly needs to be retracted, the extension and contraction of the oil cylinder 4 is utilized to drive the inner bracket 2 to move, thereby retracting the front counterweight assembly, reducing the proportion of the front axle load, and facilitating adjustment.

[0084] The present invention provides a novel front counterweight automatic adjustment system, which can adjust the distance between the front counterweight and the center of gravity of the whole vehicle through a hydraulic cylinder, thereby adjusting the mass ratio of the front and rear wheels of the tractor, thereby achieving the effect of reducing soil compaction and saving fuel consumption.

[0085] The present invention enables the weight plate to slide through the action of the sliding groove and the two sides of the inner bracket (i.e. the sliding core shaft), thereby adjusting the center of mass distribution of the entire vehicle, thereby adjusting the mass proportion of the front and rear axles.

[0086] In addition, the present invention adopts a hydraulic cylinder as an actuator and a hydraulic reversing valve as a control element, thereby automating the operation.

[0087] The present invention improves the original structure that when adjusting the center of mass of the front and rear axles, the number of counterweights that need to be replaced is large, which results in high labor intensity. By introducing the present invention, when four-wheel drive is in operation, the counterweight can be extended forward to fully utilize the power of the front axle. When two-wheel drive or light load operation is required, the front counterweight is retracted to reduce the compaction of the soil by the front axle and fully utilize the driving force of the rear axle.

[0088] It should be noted that all electronic components involved in the present invention adopt the existing technology, and the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is the existing technology.

[0089] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0090] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new front weight adjustment system, characterized by: It comprises a front counterweight assembly, an outer bracket (1) and an inner bracket (2), wherein the outer bracket (1) is fixedly arranged; the inner bracket (2) can be horizontally slidable and positioned on the outer bracket (1), and the front counterweight assembly is mounted on the inner bracket (2).

2. The novel front counterweight adjustment system according to claim 1 is characterized in that: The inner bracket (2) and the outer bracket (1) are respectively U-shaped brackets, and the two sides of the inner bracket (2) are respectively horizontally slidably connected and positioned with the two sides of the outer bracket (1); the front counterweight assembly is mounted on the closed end of the inner bracket (2).

3. The novel front counterweight adjustment system according to claim 2 is characterized in that: A sliding groove (3) with one end open is respectively provided on both sides of the open end of the outer bracket (1), and both sides of the open end of the inner bracket (2) extend into the two sliding grooves (3) respectively, and are slidably connected and positioned with the two sliding grooves (3) respectively.

4. The novel front counterweight adjustment system according to claim 2 is characterized in that: It also comprises an oil cylinder (4), which is arranged in the outer bracket (1), and whose two ends are rotatably connected to the closed end of the outer bracket (1) and the closed end of the inner bracket (2), respectively.

5. The novel front weight adjustment system according to claim 4 is characterized in that: It also comprises a reversing valve (5), on which a first interface, a second interface, a third interface and a fourth interface are provided, wherein the first interface is in communication with the second interface and the third interface is in communication with the fourth interface, or the first interface is in communication with the third interface and the second interface is in communication with the fourth interface; the first interface and the second interface are in communication with two oil chambers in the oil cylinder (4) which are independent of each other through pipelines.

6. The novel front counterweight adjustment system according to any one of claims 2 to 5, characterized in that: The front counterweight assembly comprises a plurality of front counterweight plates (6), and the plurality of front counterweight plates (6) are respectively mounted on the closed ends of the inner bracket (2).

7. The novel front weight adjustment system according to claim 6 is characterized in that: The plurality of front weight plates (6) are connected together by long bolts (7).

8. The novel front counterweight adjustment system according to claim 7 is characterized in that: The plurality of front weight plates (6) are arranged side by side and are fitted together, and are respectively provided with a slot (8) on one end thereof; the closed end of the inner bracket (2) is snapped into the slot (8) and snapped with the slot (8).

9. The novel front weight adjustment system according to claim 8 is characterized in that: A pair of locking holes (9) are respectively arranged at one end of the plurality of front weight plates (6) corresponding to the positions in the locking slot (8); a groove (10) is arranged at the closed end of the inner bracket (2); a pair of through holes (11) are arranged on both sides of the groove (10); the pair of through holes (11) can be connected with any pair of the locking holes (9); a pin shaft (12) is inserted into the pair of through holes (11) and the corresponding pair of the locking holes (9); and an elastic locking pin (13) is engaged with the position of the pin shaft (12) corresponding to the position in the groove (10).

10. A tractor, characterized in that: It comprises a novel front counterweight adjustment system as described in any one of claims 1-9.

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