Blade transmission case

Abstract

The utility model discloses a tillage blade transmission case which comprises a case body and a bottom shell, a first through hole is formed in the lower surface of the bottom shell, a groove is formed in the upper surface of the bottom shell, the groove is communicated with the first through hole, and a sliding plate is connected into the groove in a sliding mode. Belongs to the technical field of agricultural operation machines. According to the tillage blade transmission box, the bottom shell is installed at the bottom of the box body, the connecting rod penetrates through the first through hole and the second through hole in the corresponding position, the bolt is screwed, the bolt drives the sleeve to rotate through the sliding block, then the sleeve drives the circular plate to rotate, the circular plate drives the sliding plate to be clamped with the clamping groove through the inclined groove and the sliding rod, and after the bolt is screwed in place, fixing of the bottom shell is completed; when the bottom shell needs to be disassembled, the bolts are unscrewed in the reverse direction, compared with a traditional mode that the box body and the bottom shell are connected and fixed through a plurality of screws, operation is more convenient and labor-saving, only one bolt needs to be screwed for installation and disassembly, and the disassembly and assembly efficiency of the bottom shell can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural working machines, and more specifically to a tiller blade transmission box. Background Art

[0002] The tiller blade transmission box of an agricultural machine is a device that adjusts and controls the power transmitted to the tiller blade, so that the tiller blade can perform different actions, such as rotation and stop.

[0003] In some existing tiller blade transmission boxes, the bottom shell arranged at the bottom of the box body is connected to the box body by multiple screws. Every time the user installs and disassembles the bottom shell, the multiple screws need to be repeatedly screwed, which reduces the efficiency of the user's disassembly of the bottom shell. In addition, when the bottom shell is placed on the box body, the bottom shell cannot be positioned. The user needs to align the through holes on the bottom shell with the mounting holes on the box body before screwing the screws in, which is more troublesome. Utility Model Content

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

[0005] In some existing tiller blade transmission boxes, the bottom shell arranged at the bottom of the box body is connected to the box body by multiple screws. Every time the user installs and disassembles the bottom shell, the multiple screws need to be repeatedly screwed, which reduces the efficiency of the user's disassembly of the bottom shell. In addition, when the bottom shell is placed on the box body, the bottom shell cannot be positioned. The user needs to align the through holes on the bottom shell with the mounting holes on the box body before screwing the screws in, which is more troublesome.

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

[0007] The cam is provided with a first groove, the first groove is connected with the first through hole, the second groove is provided with a second through hole, the bottom shell is rotatably connected with a sleeve, the sleeve is arranged at the bottom of the inner wall of the bottom shell, the bolt passes through the bottom shell and is threadedly connected with the bottom shell, and the bolt is located at the inner side of the sleeve, the outer side of the sleeve is provided with a circular plate, the circular plate is fixedly connected with the sleeve, the inner side of the circular plate is provided with an inclined groove, the inner side of the inclined groove is slidably connected with a sliding rod, the sliding rod is fixedly connected with the sliding rod, the inner side of the sleeve is slidably connected with a sliding block, the inner side of the sleeve is slidably connected with a sliding block, the inner side of the bottom shell is threadedly connected with a bolt, the bolt is fixedly connected with the sliding block, the bottom of the box body is fixedly connected with a connecting rod, the outer side wall of the connecting rod is provided with a slot, the slot is used in conjunction with the slide plate, and the slide plate can be fixed to the box body when the slot is engaged with the slot.

[0008] Preferably, the cross section of the slider is a square structure, the outer side wall of the slider is in contact with the inner side wall of the sleeve, and the sleeve can be driven to rotate by the slider when the bolt is screwed.

[0009] Preferably, an input shaft is rotatably connected inside the housing, and an output shaft is rotatably connected inside the housing and below the input shaft, a plurality of input gears are arranged on the input shaft, a sleeve is arranged on the output shaft, the sleeve can slide back and forth on the output shaft, and the output shaft can drive the sleeve to rotate, an output gear is arranged on the sleeve, and the position of the sleeve is controlled by a shift fork, thereby changing the mutual engagement or separation of different input gears and different output gears, thereby achieving the purpose of controlling different gears.

[0010] Preferably, the slot is an annular structure, and the cross-section of the slot is a trapezoidal structure. The slot has a trapezoidal cross-section, and the inclined surface of the trapezoidal structure is located on the side of the connecting rod away from the box body. When the slide plate is engaged with the slot, the slide plate will squeeze the inclined surface on the slot, making the bottom shell and the box body tighter.

[0011] Preferably, the outer side wall of the slide plate fits with the inner side wall of the groove, and the slide plate can slide back and forth in the groove.

[0012] Preferably, there are four grooves in total, the four grooves are symmetrically distributed, and the four grooves are arranged in a cross shape as a whole.

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

[0014] 1) When the tiller blade transmission box is in use, the bottom shell is installed to the bottom of the box body, so that the connecting rod passes through the first through hole and the second through hole at the corresponding position, and the bolt is tightened. The bolt drives the sleeve to rotate through the slider, and the sleeve drives the circular plate to rotate. The circular plate drives the slide plate to engage with the slot through the inclined groove and the slide rod. After the bolt is tightened into place, the bottom shell is fixed. When the bottom shell needs to be disassembled, the bolt can be loosened in the reverse direction. Compared with the traditional method of connecting and fixing the box body and the bottom shell through multiple screws, the operation is more convenient and labor-saving. Only one bolt needs to be screwed for installation and disassembly, which is conducive to improving the disassembly and assembly efficiency of the bottom shell.

[0015] 2) When the tiller blade transmission box is in use, after the bottom shell is installed to the bottom of the box body, the four connecting rods at the bottom of the box body will respectively enter and pass through the first through hole and the second through hole at the designated position, and the bottom shell installed on the bottom of the box body can be positioned by the connecting rods cooperating with the first through hole and the second through hole, thereby further improving the installation efficiency of the bottom shell. 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 bottom shell of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the input shaft of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the output shaft of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the skateboard of the utility model;

[0021] Figure 6 It is a cross-sectional schematic diagram of the sleeve of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the connecting rod of the utility model.

[0023] Explanation of the numbers in the figure: 1. box body; 2. bottom shell; 3. first through hole; 4. groove; 5. slide plate; 6. second through hole; 7. sleeve; 8. round plate; 9. inclined groove; 10. slide rod; 11. slide block; 12. bolt; 13. connecting rod; 14. slot; 15. output shaft; 16. input shaft. DETAILED DESCRIPTION

[0024] In some existing tiller blade transmission boxes, the bottom shell arranged at the bottom of the box body is connected to the box body by multiple screws. Every time the user installs and disassembles the bottom shell, the multiple screws need to be repeatedly screwed, which reduces the efficiency of the user's disassembly of the bottom shell. In addition, when the bottom shell is placed on the box body, the bottom shell cannot be positioned. The user needs to align the through holes on the bottom shell with the mounting holes on the box body before screwing the screws in. The operation is relatively troublesome. The following solution is used to solve this problem.

[0025] See also Figures 1 to 7A tiller transmission box includes a box body 1 and a bottom shell 2. A first through hole 3 is provided on the lower surface of the bottom shell 2. A groove 4 is provided on the upper surface of the bottom shell 2. The groove 4 is communicated with the first through hole 3. A slide plate 5 is slidably connected to the inside of the groove 4. A second through hole 6 is provided inside the slide plate 5. A sleeve 7 is rotatably connected to the inside of the bottom shell 2. The sleeve 7 is arranged at the bottom of the inner wall of the bottom shell 2. A bolt 12 passes through the bottom shell 2 and is threadedly connected to the bottom shell 2. At the same time, the bolt 12 is located on the inner side of the sleeve 7. A circular plate 8 is sleeved on the outer side of the sleeve 7. The plate 8 is fixedly connected to the sleeve 7, an inclined groove 9 is provided inside the circular plate 8, a slide rod 10 is slidably connected inside the inclined groove 9, the slide rod 10 is fixedly connected to the slide plate 5, a slider 11 is slidably connected inside the sleeve 7, a bolt 12 is threadedly connected inside the bottom shell 2, the bolt 12 is fixedly connected to the slider 11, a connecting rod 13 is fixedly connected to the bottom of the box body 1, a slot 14 is provided on the outer wall of the connecting rod 13, the slot 14 is used in conjunction with the slide plate 5, and the slide plate 5 can fix the bottom shell 2 on the box body 1 when the slot 14 is engaged.

[0026] The cross section of the slider 11 is a square structure, and the outer wall of the slider 11 fits with the inner wall of the sleeve 7. When the bolt 12 is screwed, the sleeve 7 can be driven to rotate through the slider 11, and the slider 11 can slide up and down inside the sleeve 7.

[0027] An input shaft 16 is rotatably connected inside the housing 1, and an output shaft 15 is rotatably connected inside the housing 1 and below the input shaft 16. A plurality of input gears are arranged on the input shaft 16, and a sleeve is arranged on the output shaft 15. The sleeve can slide back and forth on the output shaft 15, and the output shaft 15 can drive the sleeve to rotate. An output gear is arranged on the sleeve, and the position of the sleeve is controlled by a shift fork, thereby changing the mutual engagement or separation of different input gears and different output gears, thereby achieving the purpose of controlling different gears.

[0028] The slot 14 is an annular structure, and the cross section of the slot 14 is a trapezoidal structure. The slot 14 with a trapezoidal cross section has an inclined surface of the trapezoidal structure located on the side of the connecting rod 13 away from the box body 1. When the connecting rod 13 passes through the first through hole 3 and the second through hole 6, the control slide 5 is engaged with the slot 14, and the slide 5 will squeeze the inclined surface on the slot 14, so that the bottom shell 2 and the box body 1 are tighter.

[0029] The outer wall of the slide plate 5 fits with the inner wall of the groove 4 , and the slide plate 5 is limited by the groove 4 , so that the slide plate 5 can slide back and forth in the groove 4 .

[0030] There are four grooves 4 in total, and the four grooves 4 are symmetrically distributed. The four grooves 4 are arranged in a cross shape as a whole, and the two opposite grooves are on the same straight line.

[0031] The utility model uses the following steps: When the tiller transmission box is in use, the bottom shell 2 is installed to the bottom of the box body 1, so that the four connecting rods 13 at the bottom of the box body 1 respectively enter and pass through the first through hole 3 and the second through hole 6 at the corresponding positions, and the shell body 2 is positioned by the connecting rods 13 in conjunction with the first through hole 3 and the second through hole 6, and then the bolts 12 at the bottom position of the bottom shell 2 are tightened. When the bolts 12 rotate, the sleeve 7 is driven to rotate through the slider 11, and the sleeve 7 drives the circular plate 8 to rotate. The circular plate 8 squeezes the slide rod 10 through the inner wall of the inclined groove 9. Since the slide plate 5 is limited by the groove 4, the rotating circular plate 8 is rotated. The plate 8 drives the slide plate 5 to slide in the direction close to the circular plate 8 through the inclined groove 9 and the slide rod 10. At this time, the inner wall of the second through hole 6 on the slide plate 5 will be squeezed to the inner wall of the slot 14 on the connecting rod 13, so that the slide plate 5 is engaged with the slot 14. After the bolts 12 are tightened into place, the fixation of the bottom shell 2 is completed. When the bottom shell 2 needs to be disassembled, the bolts 12 can be loosened in the reverse direction. Compared with the traditional method of connecting and fixing the box body 1 and the bottom shell 2 through multiple screws, the operation is more convenient and labor-saving. Only one bolt 12 needs to be screwed for installation and disassembly, which is beneficial to improving the efficiency of disassembly and assembly of the bottom shell 2.

[0032] 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. A tiller blade transmission box, comprising a box body (1) and a bottom shell (2), characterized in that: The bottom surface of the bottom shell (2) is provided with a first through hole (3), the top surface of the bottom shell (2) is provided with a groove (4), the groove (4) is communicated with the first through hole (3), a slide plate (5) is slidably connected to the inside of the groove (4), a second through hole (6) is provided to the inside of the slide plate (5), a sleeve (7) is rotatably connected to the inside of the bottom shell (2), a circular plate (8) is sleeved on the outside of the sleeve (7), the circular plate (8) is fixedly connected to the sleeve (7), and an inclined groove (8) is provided to the inside of the circular plate (8). A groove (9) is provided, the interior of the inclined groove (9) is slidably connected with a slide rod (10), the slide rod (10) is fixedly connected with the slide plate (5), the interior of the sleeve (7) is slidably connected with a slide block (11), the interior of the bottom shell (2) is threadedly connected with a bolt (12), the bolt (12) is fixedly connected with the slide block (11), the bottom of the box body (1) is fixedly connected with a connecting rod (13), the outer side wall of the connecting rod (13) is provided with a card slot (14), and the card slot (14) is used in conjunction with the slide plate (5).

2. A tiller blade transmission box according to claim 1, characterized in that: The cross section of the slider (11) is a square structure, and the outer side wall of the slider (11) fits with the inner side wall of the sleeve (7).

3. A tiller blade transmission box according to claim 1, characterized in that: An input shaft (16) is rotatably connected inside the housing (1), and an output shaft (15) is rotatably connected inside the housing (1) and below the input shaft (16).

4. A tiller blade transmission box according to claim 1, characterized in that: The clamping groove (14) is an annular structure, and the cross section of the clamping groove (14) is a trapezoidal structure.

5. A tiller blade transmission box according to claim 1, characterized in that: The outer side wall of the slide plate (5) is in contact with the inner side wall of the groove (4).

6. A tiller blade transmission box according to claim 1, characterized in that: There are four grooves (4) in total, and the four grooves (4) are symmetrically distributed.

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