Transmission case of double-disc ditcher and double-disc ditcher comprising transmission case

Abstract

The transmission case comprises a case body, an input shaft assembly and an output shaft assembly, the case body comprises an input case and an output case which are integrally formed, the input case and the output case are communicated with each other, and flanges which protrude out of the case body and are connected into a whole are arranged on the outer side faces of the input case and the output case respectively. The flange and the box body are integrally formed, the input shaft assembly is arranged on the input box, the output shaft assembly is arranged on the output box, the input shaft assembly is connected with the end of the output shaft assembly to transmit power, the output shaft assembly is provided with two output shafts capable of rotating synchronously, and the two output shafts are arranged on the two side walls of the output box respectively. The integrated box is stable and reasonable in structure, high in power transmission efficiency and convenient to assemble and disassemble, the integrated box body is high in structural strength, the integrated flange is high in connecting precision and convenient to install, oil leakage is avoided, all parts are connected more reliably and stably, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of double-disc trenching machines, in particular to a double-disc trenching machine transmission box and a double-disc trenching machine comprising the same. Background Art

[0002] A trencher is a commonly used device for trenching in agricultural production. A double-disc trencher is provided with two parallel trenching knives, which are driven by a transmission box to perform trenching operations simultaneously. The production efficiency is high and the trenching amount with the same stroke is doubled. Therefore, the double-disc trencher is more and more widely used in production. The transmission box used in the prior art to drive the two trenching knives has some defects. The transmission box currently used includes an input box and an output box connected by bolts. Due to factors such as operating conditions or installation differences, bolt breakage or oil leakage often occurs at the connection between the input box and the output box. The accuracy of the connection between the input box and the output box directly affects the meshing and transmission of the input gear and the output gear, as well as the service life of the transmission box. Moreover, because there are many connecting parts of the transmission box, after giving priority to ensuring the accuracy of the connecting parts of the input box and the output box, the input end of the input box and the opposite input box body are often adjusted with spacers to connect with the front and rear frames of the double-disc trencher. The spacers will make the connection surface smaller and the connection strength reduced, resulting in a decrease in the performance of the entire machine. Therefore, a double-disc trencher transmission box that overcomes the above defects is required. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a transmission box for a double-disc trencher.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A double-disc trencher transmission box comprises a box body, an input shaft assembly and an output shaft assembly, wherein the box body comprises an input box and an output box which are integrally formed, the input box and the output box are connected to each other, the input shaft assembly is arranged on the input box, the output shaft assembly is arranged on the output box, and the input shaft assembly is connected to the output shaft assembly to transmit power.

[0006] As an implementation mode of the present utility model, the input box and the output box are integrally cast.

[0007] As an implementation manner of the present utility model, a support seat plate is arranged between the input box and the output box, and a through hole connecting the input box and the output box is arranged on the support seat plate.

[0008] As an embodiment of the utility model, the support seat plate is integrally formed with the input box and the periphery is connected to the wall of the input box, an oil hole penetrating the support seat plate is provided below the through hole, and the bottom of the oil hole penetrates to the inner wall of the input box.

[0009] As an embodiment of the utility model, the input box is respectively provided with a first flange and a second flange on both sides, the output box is provided with a third flange on the outer end face, and side flanges are provided on both sides, and the first flange, the second flange, the third flange and the side flange are integrally formed with the box body.

[0010] As an embodiment of the utility model, the input box is provided with a first support hole, a second support hole and a third support hole which penetrate the input box in sequence from top to bottom, and the input shaft assembly is arranged on the first support hole, the second support hole and the third support hole.

[0011] As an embodiment of the utility model, a fourth support hole is provided on the outer end box wall of the output box, and the two box walls are respectively provided with a first output shaft hole and a second output shaft hole, and the output shaft assembly is arranged on the fourth support hole and the first output shaft hole and the second output shaft hole.

[0012] As an embodiment of the utility model, the input shaft assembly includes an input shaft, an intermediate shaft and a transmission shaft that are meshed with each other through gears, the input shaft transmits power to the transmission shaft through the intermediate shaft, and the end of the transmission shaft is connected to the output shaft assembly through a spline.

[0013] As an embodiment of the utility model, the output shaft assembly includes a connecting shaft, which is connected to the input shaft assembly through a spline, and a small bevel gear is respectively provided at both ends of the connecting shaft. The two small bevel gears are respectively meshed with large bevel gears provided on the two output shafts, and the connecting shaft drives the two output shafts to rotate synchronously through the small bevel gear and the large bevel gear.

[0014] A double-disc trencher comprises a double-disc trencher transmission box as described in any one of the above items.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] The utility model provides a double-disc trencher transmission box, comprising a box body, an input shaft assembly and an output shaft assembly, the box body comprising an integrally formed input box and an output box, an integrally formed support seat plate is arranged between the input box and the output box to strengthen the structural strength of the box body, a through hole and an oil hole are arranged between the input box and the output box to communicate with each other, the oil hole facilitates the flow of lubricating oil in the input box and the output box, and can avoid oilless operation in a box body to damage gears or bearings; the outer sides of the input box and the output box are respectively provided with flanges protruding from the box body and connected as one body, the front and rear frames are fixedly connected to the flanges, and there is no need to use a spacer for adjustment, thereby ensuring the connection area and improving the installation accuracy; the input shaft assembly is arranged on the input box, and the output shaft assembly is arranged on the output box, the input shaft assembly passes through the support seat plate and is connected to the output shaft assembly to transmit power, which is convenient for assembly and disassembly, and the output shaft assembly is provided with two synchronously rotatable output shafts, the utility model has a stable and reasonable structure, is convenient for assembly and disassembly, has high power transmission efficiency, has a high strength of the integral box body, has high installation accuracy, is more reliable and stable in connection, is conducive to heat dissipation, has no oil leakage, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model from another angle;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the box body of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the box body of the utility model from another angle;

[0022] Figure 6 It is a front structural schematic diagram of the box body of the utility model;

[0023] Figure 7 It is a rear view structural schematic diagram of the box body of the utility model;

[0024] Figure 8 This is a three-dimensional structural diagram of the input shaft assembly and the output shaft assembly of the utility model.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the utility model installed on a double-disc trencher;

[0026] Fig.10 A three-dimensional exploded view of the utility model installed on a double-disc trencher.

[0027] Among them: 1. Box body; 1-1. Input box; 1-2. Output box; 1-3. Support seat plate; 1-4. Through hole; 1-5. First flange; 1-6. Second flange; 1-7. Third flange; 1-8. Side flange; 1-9. Oil hole; 1-10. First support hole position; 1-11. Second support hole; 1-12. Third support hole; 1-13. Fourth support hole; 1-14. First output shaft hole; 1-15. Second output shaft hole; 2. Input shaft assembly; 2-1. Input shaft; 2-2. Intermediate shaft; 2-3. Transmission shaft; 3. Output shaft assembly; 3-1. Connecting shaft; 3-2. Small bevel gear; 3-3. Output shaft; 3-4. Large bevel gear. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0029] like Figures 1 to 8 A double-disc trencher transmission box shown includes a box body 1, an input shaft assembly 2 and an output shaft assembly 3. The box body 1 includes an input box 1-1 and an output box 1-2 which are integrally formed. The input box 1-1 and the output box 1-2 are connected to each other. The input shaft assembly 2 is arranged on the input box 1-1, and the output shaft assembly 3 is arranged on the output box 1-2. The input shaft assembly 2 is connected to the output shaft assembly 3 to transmit power. An integrally formed support seat plate 1-3 can be arranged between the input box 1-1 and the output box 1-2. The support seat plate 1-3 can strengthen the structural strength of the box body 1. A through hole 1-4 for installing a bearing seat is arranged on the support seat plate 1-3. The bearing seat is fixed in the input box 1-1 with bolts. The bearing seat supports the rotation of the input shaft assembly 2 to make the power transmission smoother; the periphery of the support seat plate 1-3 can be fully or partially connected to the inner wall of the box body 1. When the support seat plate 1-3 is fully connected to the inner wall of the box body 1, an oil hole 1-9 connecting the input box 1-1 and the output box 1-2 is arranged on the support seat plate 1-3. The oil hole 1-9 is arranged below the through hole 1-4 and penetrates to the inner side of the inner wall of the input box 1-1. The oil hole 1-9 enables the lubricating oil in the input box 1-1 and the output box 1-2 to be quickly exchanged and circulated, ensuring that the lubrication environment of the components in the two boxes is good, avoiding the phenomenon in the prior art that the lubricating oil only circulates through the bearing gap, sometimes causing oil-free operation in a box, resulting in damage to the components in the box.

[0030] like Figures 2 to 8As shown, the input box 1-1 and the output box 1-2 are integrally cast, and the input box 1-1 is provided with a first support hole 1-10, a second support hole 1-11 and a third support hole 1-12 which penetrate the input box 1-1 from top to bottom, and the third support hole 1-12 and the through hole 1-4 are located on the same axis, and the input shaft assembly 2 is arranged on the first support hole 1-10, the second support hole 1-11 and the third support hole 1-12. A fourth support hole 1-13 which is located on the same axis as the through hole 1-4 is arranged on the outer end wall of the output box 1-2, and a first output shaft hole 1-14 and a second output shaft hole 1-15 are arranged on both sides of the output box 1-2, and the output shaft assembly 3 is arranged on the fourth support hole 1-13 and the first output shaft hole 1-14 and the second output shaft hole 1-15. The first flange 1-5 and the second flange 1-6 are respectively provided on the two side surfaces of the input box 1-1. The first flange 1-5 is arranged on the outer side surface and surrounds the outer periphery of the first support hole 1-10, the second support hole 1-11 and the third support hole 1-12. The first flange 1-5 is also provided with a mounting hole connected to the front and rear frames; the second flange 1-6 is arranged on the corresponding side surface and surrounds the outer periphery of the first support hole 1-10 and the second support hole 1-11; the third flange 1-7 is provided on the outer end face of the output box 1-2, and side flanges 1-8 are provided on both side surfaces. The third flange 1-7 surrounds the fourth support hole 1-13, and the third flange 1-7 is also provided with mounting holes connected to the front and rear frames. The front and rear frames are installed on the first flange 1-5 and the third flange 1-7. There is no need to use the spacer in the prior art to adjust the installation position and size, which improves the connection area and installation accuracy and makes the connection more stable; the first flange 1-5, the second flange 1-6, the third flange 1-7 and the two side flanges 1-8 are all cast integrally with the box body 1.

[0031] like Figures 3 to 5 and Figure 8As shown, the input shaft assembly 2 includes an input shaft 2-1, an intermediate shaft 2-2 and a transmission shaft 2-3 which are meshed with each other through gears. The input shaft 2-1 is arranged on the first support hole 1-10, the intermediate shaft 2-2 is arranged on the second support hole 1-11, and the transmission shaft 2-3 is arranged on the third support hole 1-12. The input shaft 2-1 transmits power to the transmission shaft 2-3 through the intermediate shaft 2-2. The end of the transmission shaft 2-3 is connected to the output shaft assembly 3 through a spline to transmit power to the output shaft assembly 3; the output shaft assembly 3 includes a connecting shaft 3-1, one end of which is connected to the connecting shaft 3-1. It is connected to the input shaft assembly 2 through a spline, and the other end is arranged on the fourth support hole 1-13. A small bevel gear 3-2 is respectively arranged at both ends of the connecting shaft 3-1. The two small bevel gears 3-2 are respectively meshed with the large bevel gears 3-4 arranged on the two output shafts 3-3. The connecting shaft 3-1 can drive the two output shafts 3-3 to rotate synchronously through the small bevel gear 3-2 and the large bevel gear 3-4. The two output shafts 3-3 are respectively arranged on the first output shaft hole 1-14 and the second output shaft hole 1-15, and extend to the outside of the output box 1-2 to be connected with the trenching parts of the trencher.

[0032] like Fig. 9 and Fig.10 As shown, any of the above double-disc trencher transmission boxes can be installed on the double-disc trencher to drive the trenching assembly to perform trenching operations. The double-disc trencher transmission box of the present application is easy to install and has high connection accuracy, which can improve the mechanical properties of the double-disc trencher as a whole.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-disc trencher transmission box, characterized in that: It comprises a box body (1), an input shaft assembly (2) and an output shaft assembly (3); the box body (1) comprises an input box (1-1) and an output box (1-2) which are integrally formed; the input box (1-1) and the output box (1-2) are connected to each other; the input shaft assembly (2) is arranged on the input box (1-1); the output shaft assembly (3) is arranged on the output box (1-2); the input shaft assembly (2) and the output shaft assembly (3) are connected to transmit power; The output shaft assembly (3) comprises a connecting shaft (3-1), the connecting shaft (3-1) being connected to the input shaft assembly (2) via a spline, a small bevel gear (3-2) being respectively arranged at both ends of the connecting shaft (3-1), the two small bevel gears (3-2) being respectively meshed with large bevel gears (3-4) arranged on two output shafts (3-3), and the connecting shaft (3-1) drives the two output shafts (3-3) to rotate synchronously via the small bevel gear (3-2) and the large bevel gear (3-4).

2. A double-disc trencher transmission box according to claim 1, characterized in that: The input box (1-1) and the output box (1-2) are integrally cast.

3. A double-disc trencher transmission box according to claim 1, characterized in that: A support seat plate (1-3) is provided between the input box (1-1) and the output box (1-2), and a through hole (1-4) connecting the input box (1-1) and the output box (1-2) is provided on the support seat plate (1-3).

4. A double-disc trencher transmission box according to claim 3, characterized in that: The support seat plate (1-3) is integrally formed with the input box (1-1) and its periphery is connected to the wall of the input box (1-1); an oil hole (1-9) penetrating the support seat plate (1-3) is provided below the through hole (1-4); the bottom of the oil hole (1-9) penetrates the inner wall of the input box (1-1).

5. A double-disc trencher transmission box according to claim 1, characterized in that: The input box (1-1) is provided with a first flange (1-5) and a second flange (1-6) on both side surfaces, respectively; the output box (1-2) is provided with a third flange (1-7) on the outer end surface, and side flanges (1-8) are provided on both side surfaces; the first flange (1-5), the second flange (1-6), the third flange (1-7) and the side flange (1-8) are integrally formed with the box body (1).

6. A double-disc trencher transmission box according to claim 1, characterized in that: The input box (1-1) is provided with a first support hole position (1-10), a second support hole (1-11) and a third support hole (1-12) which pass through the input box (1-1) in sequence from top to bottom, and the input shaft assembly (2) is arranged on the first support hole position (1-10), the second support hole (1-11) and the third support hole (1-12).

7. A double-disc trencher transmission box according to claim 1, characterized in that: A fourth support hole (1-13) is provided on the outer end box wall of the output box (1-2), and a first output shaft hole (1-14) and a second output shaft hole (1-15) are provided on the two box walls respectively; the output shaft assembly (3) is provided on the fourth support hole (1-13) and the first output shaft hole (1-14) and the second output shaft hole (1-15).

8. A double-disc trencher transmission box according to claim 1, characterized in that: The input shaft assembly (2) comprises an input shaft (2-1), an intermediate shaft (2-2) and a transmission shaft (2-3) which are meshed with each other through gears; the input shaft (2-1) transmits power to the transmission shaft (2-3) through the intermediate shaft (2-2); and the end of the transmission shaft (2-3) is connected to the output shaft assembly (3) through a spline.

9. A double-disc trencher, characterized in that: A double-disc trencher transmission box comprising the transmission box of any one of claims 1-8.

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