Agricultural machine transmission case

Abstract

The agricultural machine transmission case comprises a first shell and a second shell, a through hole is formed in one side of the second shell, a cover plate is movably connected to the interior of the through hole, a first inserting hole is formed in the cover plate, an inserting rod is movably connected to the interior of the first inserting hole, and the inserting rod is fixedly connected with the second shell. A first groove is formed in the side, away from the second shell, in the cover plate. Belongs to agricultural machinery technical field. According to the agricultural machine transmission box, bolts on a cover plate are unscrewed, a circular plate drives an insertion plate to move in the direction close to the bolts through sliding grooves and sliding rods, the insertion plate is separated from insertion grooves in insertion rods, at the moment, a user can take down the cover plate from a second shell, internal accessories are replaced and maintained through a through hole formed in one side of the second shell, and after the operation is finished, the cover plate is replaced and maintained. The cover plate is installed back, the inserting rod on the second shell penetrates through the first inserting hole in the cover plate, then the bolt is screwed, the inserting plate and the inserting groove can be controlled to be clamped, and therefore installation of the cover plate is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and more specifically, to a transmission box for agricultural machinery. Background Art

[0002] Agricultural machinery is a machine used for agriculture. When these machines are in use, they need to move through some transmission structures, and the transmission mechanism is generally located in the transmission box of the agricultural machinery.

[0003] For example, in the existing tractor transmission box, the two shells of the transmission box are connected and fixed by multiple diagonal bolts and nuts, which is inconvenient to connect. There are too many small accessories and they are easy to lose. Once lost, it will affect the overall use. Most importantly, there are no through holes on the side of the shell, which makes it inconvenient for users to replace and maintain the bearings, gears, shafts and other accessories in the shell. Utility Model Content

[0004] The purpose of the utility model is to provide an agricultural machinery transmission box to solve the problems raised in the above background technology:

[0005] In the existing tractor transmission case, the two shells of the transmission case are connected and fixed by multiple diagonal bolts and nuts, which is inconvenient to connect. There are too many small accessories, which are easy to lose. Once lost, it will affect the overall use. Most importantly, there are no through holes on the side of the shell, which is inconvenient for users to replace and maintain the bearings, gears, shafts and other accessories in the shell.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A transmission box for agricultural machinery comprises a first shell and a second shell, a through hole is provided on one side of the second shell, a cover plate is movably connected inside the through hole, a first plug hole is provided inside the cover plate, a plug rod is movably connected inside the first plug hole, the plug rod is fixedly connected to the second shell, a first groove is provided inside the cover plate on a side away from the second shell, a bolt is provided inside the first groove, the bolt is threadedly connected to the cover plate, a circular plate is sleeved on the outside of the bolt, the circular plate is fixedly connected to the bolt, a sliding groove is provided on the upper surface of the circular plate, a sliding rod is slidably connected inside the sliding groove, a plug plate is fixedly connected to the top of the sliding rod, the plug plate passes through the cover plate and extends to the inside of the first plug hole, the plug plate is slidably connected to the cover plate, a slot is provided inside the plug rod, the slot is used in conjunction with the plug plate, a second plug hole is provided inside the first shell, a threaded hole is provided inside the second shell The threaded hole is used in conjunction with the second jack. Traditionally, the first shell and the second shell are connected and fixed by fixing bolts and fixing nuts, which is inconvenient during installation, and too many small accessories are easy to lose. The utility model directly opens a threaded hole on the second shell, and then connects and fixes the first shell and the second shell by fixing bolts and threaded holes, which is more convenient to operate and will not cause the fixing nut to be lost. The outside of the second shell is fixedly connected with a connecting plate, which can be fixed to the outside of the second shell by welding, and the angle between the connecting plate and the second shell can be changed according to its needs. The outside of the connecting plate is fixedly connected with a first connecting frame, and the outside of the first connecting frame is fixedly connected with a second connecting frame. The second connecting frame is a U-shaped structure. The middle of the second connecting frame with the U-shaped structure is opened as a whole, and there is no obstruction on the left and right sides, which will not affect the back and forth swinging of the second connecting frame.

[0008] Preferably, there are three first sockets, which are symmetrically distributed. The cover plate and the second shell are positioned and connected through the insertion rod and the first sockets. Then the user tightens the bolts on the cover plate to drive the insertion plate to engage with the slot to complete the connection and fixation between the cover plate and the second shell.

[0009] Preferably, the slide groove is an equilateral triangle structure, and when the circular plate rotates, the slide rod on the plug plate is squeezed through the inner wall of the slide groove, thereby driving the plug plates at three different positions to move simultaneously.

[0010] Preferably, the cross section of the plug plate is an isosceles trapezoidal structure. A plug plate of such a shape can limit itself and prevent the plug plate from being directly separated from the cover plate.

[0011] Preferably, a second groove is provided on one side of the cover plate, and the second groove provided on one side of the cover plate is for matching with other accessories on the second shell to prevent the installation of the cover plate from being hindered.

[0012] Preferably, the outer wall of the circular plate fits with the inner wall of the first groove, and the first groove is movably connected to the cover plate. When the user tightens the bolt, the bolt drives the circular plate to rotate and move axially in the first groove. The outer wall of the circular plate fits with the inner wall of the first groove, which can limit the circular plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1) When the agricultural machinery transmission box is in use, the bolts on the cover plate are loosened, and the circular plate drives the plug plate to move toward the direction close to the bolts through the sliding groove and the sliding rod, so that the plug plate is separated from the slot on the plug rod. At this time, the user can remove the cover plate from the second shell, and replace and maintain the internal accessories through the through hole opened on one side of the second shell. After completion, the cover plate is installed back, and the plug rod on the second shell is passed through the first plug hole on the cover plate. Then, the bolts can be tightened to control the plug plate to engage with the slot, thereby completing the installation of the cover plate.

[0015] 2) When the agricultural machinery transmission box is in use, the shells of the traditional agricultural machinery transmission box are connected and fixed by fixing bolts and fixing nuts, which is inconvenient to install and too many small accessories are easy to lose. The utility model directly opens threaded holes on the second shell, and then connects and fixes the first shell and the second shell with fixing bolts and threaded holes. The operation is more convenient and the fixing nuts will not be lost. The middle of the U-shaped second connecting frame is opened up as a whole, and there is no obstruction on the left and right sides, which will not affect the back and forth swing of the second connecting frame. The connecting plate can be fixed to the outside of the second shell by welding, and the angle between the connecting plate and the second shell can be changed according to its needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the second housing of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the plug rod of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the cover plate of the utility model.

[0020] Explanation of the numbers in the figure: 1. first shell; 2. second shell; 3. through hole; 4. cover plate; 5. first groove; 6. bolt; 7. round plate; 8. slide groove; 9. slide rod; 10. plug plate; 11. first plug hole; 12. plug rod; 13. slot; 14. second plug hole; 15. connecting plate; 16. first connecting frame; 17. second connecting frame; 18. second groove. DETAILED DESCRIPTION

[0021] In the existing tractor transmission case, the two shells of the transmission case are connected and fixed by multiple diagonal bolts and nuts, which is inconvenient to connect. There are too many small accessories, which are easy to lose. Once lost, it will affect the overall use. Most importantly, there are no through holes on the side of the shell, which is inconvenient for users to replace and maintain the bearings, gears, shafts and other accessories in the shell. The following solution is used to solve this problem.

[0022] See also Figures 1 to 4A transmission box for agricultural machinery includes a first shell 1 and a second shell 2. A through hole 3 is provided on one side of the second shell 2. The through hole 3 is provided to facilitate users to replace and maintain accessories in the second shell 2. The through hole 3 is sealed by a cover plate 4. The cover plate 4 is movably connected to the inside of the through hole 3. A first plug hole 11 is provided inside the cover plate 4. A plug rod 12 is movably connected to the inside of the first plug hole 11. The plug rod 12 is fixedly connected to the second shell 2. A first groove 5 is provided on the side of the cover plate 4 away from the second shell 2. A bolt 6 is arranged inside a groove 5, and the bolt 6 is threadedly connected to the cover plate 4. A circular plate 7 is sleeved outside the bolt 6, and the circular plate 7 is fixedly connected to the bolt 6. A slide groove 8 is provided on the upper surface of the circular plate 7. A slide rod 9 is slidably connected inside the slide groove 8. A plug plate 10 is fixedly connected to the top of the slide rod 9. The plug plate 10 passes through the cover plate 4 and extends to the inside of the first plug hole 11. The plug plate 10 is slidably connected to the cover plate 4. A slot 13 is provided inside the plug rod 12, and the slot 13 is used in conjunction with the plug plate 10. The first housing 1 is provided inside The second jack 14 and the second shell 2 are provided with a threaded hole inside, and the threaded hole is used in conjunction with the second jack 14. The conventional first shell 1 and the second shell 2 are connected and fixed by fixing bolts and fixing nuts, which is inconvenient to install, and too many small accessories are easy to lose. The utility model directly opens a threaded hole on the second shell 2, and then connects and fixes the first shell 1 and the second shell 2 by fixing bolts and the threaded hole, which is more convenient to operate, and the fixing nut will not be lost. The outside of the second shell 2 is fixedly connected with a connecting plate 15, and the connecting plate 15 can be fixed to the outside of the second shell 2 by welding, and the angle between the connecting plate 15 and the second shell 2 can be changed according to its needs. The outside of the connecting plate 15 is fixedly connected with a first connecting frame 16, and the outside of the first connecting frame 16 is fixedly connected with a second connecting frame 17. The second connecting frame 17 is a U-shaped structure, and the middle of the U-shaped second connecting frame 17 is opened as a whole, and there is no obstruction on the left and right sides, which will not affect the back and forth swinging of the second connecting frame 17.

[0023] There are three first sockets 11, which are symmetrically distributed. The three plug rods 12 cooperate with the three first sockets 11 to position the cover 4 on the second shell 2. Then the user tightens the bolts 6 on the cover 4 to drive the plug plate 10 to engage with the slot 13 to complete the connection and fixation between the cover 4 and the second shell 2.

[0024] The slide groove 8 is an equilateral triangle structure. When the circular plate 7 rotates, the slide rod 9 on the plug plate 10 will be squeezed through the inner wall of the slide groove 8, so that the circular plate 7 can drive the plug plates 10 at three different positions to move simultaneously through the slide groove 8 and the slide rod 9.

[0025] The cross section of the plug board 10 is an isosceles trapezoidal structure. The plug board 10 of such a shape can limit itself and prevent the plug board 10 from being directly separated from the cover plate 4, thereby ensuring the stability of the accessories on the cover plate 4.

[0026] A second groove 18 is formed on one side of the cover plate 4 . The second groove 18 is formed on one side of the cover plate 4 to cooperate with other accessories on the second housing 2 to prevent the installation of the cover plate 4 from being hindered.

[0027] The outer wall of the circular plate 7 fits with the inner wall of the first groove 5, and the first groove 5 is movably connected to the cover plate 4. When the user screws the bolt 6, the bolt 6 will drive the circular plate 7 to rotate and move axially in the first groove 5. While the sliding rod 9 on the plug plate 10 remains in the sliding groove 8, the circular plate 7 does not contact and fit with the plug plate 10 to prevent jamming. The outer wall of the circular plate 7 fits with the inner wall of the first groove 5 to limit the circular plate 7, so that the circular plate 7 rotates and moves more smoothly.

[0028] When the gearbox is in use, the user unscrews the bolt 6 on the cover plate 4. During the unscrewing process of the bolt 6, the circular plate 7 is driven to move in the direction away from the second housing 2. At the same time, the circular plate 7 is also rotating in the opposite direction. When the circular plate 7 rotates in the opposite direction, the sliding rod 9 is squeezed through the inner wall of the sliding groove 8, so that the sliding rod 9 enters the side position of the sliding groove 8 from the sharp angle position on the sliding groove 8. During the process, the sliding rod 9 will drive the plugging plate 10 to move in the direction close to the bolt 6, so that the plugging plate 10 is separated from the slot 13 on the plugging rod 12. At this time, the user can remove the cover plate 4 from the second housing 2, and replace and maintain the internal accessories through the through hole 3 opened on one side of the second housing 2. After completion, the cover plate 4 is installed back, the plugging rod 12 on the second housing 2 passes through the first plugging hole 11 on the cover plate 4, and then the bolt 6 is tightened to control the plugging plate 10 to engage with the slot 13, thereby completing the installation of the cover plate 4.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An agricultural machinery transmission box, comprising a first housing (1) and a second housing (2), characterized in that: A through hole (3) is provided on one side of the second shell (2), and a cover plate (4) is movably connected to the interior of the through hole (3), and a first plug hole (11) is provided on the interior of the cover plate (4), and a plug rod (12) is movably connected to the interior of the first plug hole (11), and the plug rod (12) is fixedly connected to the second shell (2), and a first groove (5) is provided on the side of the cover plate (4) away from the second shell (2), and a bolt (6) is provided inside the first groove (5), and the bolt (6) is threadedly connected to the cover plate (4), and a circular plate (7) is sleeved on the outside of the bolt (6), and the circular plate (7) is fixedly connected to the bolt (6), and a sliding groove (8) is provided on the upper surface of the circular plate (7), and a sliding rod (9) is slidably connected to the interior of the sliding groove (8), and the sliding rod (9) ) is fixedly connected to the top of the cover plate (4), the plug plate (10) passes through the cover plate (4) and extends to the inside of the first plug hole (11), the plug plate (10) is slidably connected to the cover plate (4), a slot (13) is provided inside the plug rod (12), the slot (13) is used in conjunction with the plug plate (10), a second plug hole (14) is provided inside the first shell (1), a threaded hole is provided inside the second shell (2), the threaded hole is used in conjunction with the second plug hole (14), a connecting plate (15) is fixedly connected to the outside of the second shell (2), a first connecting frame (16) is fixedly connected to the outside of the connecting plate (15), a second connecting frame (17) is fixedly connected to the outside of the first connecting frame (16), and the second connecting frame (17) is a U-shaped structure.

2. The agricultural machinery transmission box according to claim 1, characterized in that: There are three first plug holes (11) in total, and the three first plug holes (11) are symmetrically distributed.

3. The agricultural machinery transmission box according to claim 1, characterized in that: The slide groove (8) is an equilateral triangle structure.

4. The agricultural machinery transmission box according to claim 1, characterized in that: The cross section of the inserting plate (10) is an isosceles trapezoidal structure.

5. The agricultural machinery transmission box according to claim 1, characterized in that: A second groove (18) is formed on one side of the cover plate (4).

6. The agricultural machinery transmission box according to claim 1, characterized in that: The outer wall of the circular plate (7) is in contact with the inner wall of the first groove (5), and the first groove (5) is movably connected to the cover plate (4).

Images