Gearbox body of four-wheel-drive mini-tiller

Abstract

A gearbox body of a four-wheel-drive mini-tiller relates to the technical field of agricultural machinery gearboxes, through the arrangement of a connecting rod, the connecting strength of a tool box and a walking box is enhanced, and the situation that the tool box and the walking box are loosened after being used for a long time, and stable transmission of internal bevel gears is affected is avoided; comprising a spindle box, the front end of the spindle box is an engine system installation end, a tool box is arranged below the front end of the spindle box, a walking box is arranged at the rear end of the spindle box, the free end of the tool box and the free end of the walking box incline towards the sides, away from the spindle box, of the tool box and the walking box, and installation bases are arranged on the opposite sides of the tool box and the walking box. Connecting rods are arranged on the mounting seats, and the two ends of the connecting rods are connected to the mounting seats on the corresponding sides respectively.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery gearbox technical field, concretely relates to a four drive micro -tiller gearbox. BACKGROUND

[0002] Micro -tiller is a kind of small ploughing instrument, it is applicable to the topography such as hilly land and cannot adopt large and medium-sized agricultural machinery, and it is mainly powered by small diesel engine and gasoline engine;Through transmission system driving ploughing knife assembly ploughing, four drive micro -tiller belongs to micro -tiller, and engine and gearbox are directly connected, and the situation of hard ground skidding idling does not appear, and the performance is more stable.

[0003] The gearbox of the common four drive micro -tiller is connected with cutter box and walking box, engine system is connected with gearbox, gearbox is connected with cutter box and walking box respectively through transmission system, cutter box is used to install ploughing knife assembly, and walking box is used to install walking wheel;The four drive micro -tiller gearbox assembly of application No.

[0004] In actual use, cutter box and walking box can be subjected to reaction force from ground, and if bolt failure or poor fastening effect, it can directly affect the gear transmission in cutter box and walking box, therefore, how to better guarantee the connection strength of cutter box and walking box and ensure that cutter box and walking box can provide stable support for the transmission of bevel gear inside it is an urgent problem to be solved. UTILITY MODEL CONTENTS

[0005] I. Technical problems solved

[0006] The utility model provides a four drive micro -tiller gearbox in view of prior art's insufficient, through the setting of connecting rod, the connection strength of cutter box and walking box is enhanced, cutter box and walking box are avoided after long time use Loose, affect the stable transmission of internal bevel gear.

[0007] II. Specific technical solutions

[0008] A four drive micro -tiller gearbox, including main shaft box, the front end of main shaft box is engine system installation end, the lower portion of main shaft box front end is provided with cutter box, the rear end of main shaft box is provided with walking box, the free end of cutter box and walking box is inclined to the side away from main shaft box respectively, the opposite side of cutter box and walking box is provided with mounting seat, the mounting seat is provided with connecting rod, the both ends of connecting rod are connected on the mounting seat of corresponding side respectively.

[0009] Realization principle, working principle:

[0010] In the scheme, the front end of the main shaft box is an engine system mounting end for mounting an oil tank and a diesel or gasoline engine, the main shaft box is used for mounting transmission components such as an input shaft and a gear box, and power of the engine system is transmitted to the main shaft box and then distributed to a walking box and a tool box; in order to improve the overall integration and reduce the footprint of the mini-tiller, the power input of the walking box and the tool box is realized through bevel gears or helical gears, that is, the bottoms of the tool box and the walking box are inclined towards the two sides of the main shaft box, and in actual operation, due to factors such as running time or fastening failure of the tool box and the walking box, the helical gear matching is easily affected, and then the transmission effect of the gear box is affected, through the setting of the connecting rod, the tool box and the walking box can be supported and constrained, and the connection strength of the walking box and the tool box with the main shaft box is improved.

[0011] As preferred, the mounting seat comprises a mounting plate, two ends of the mounting plate are provided with a connecting plate perpendicular to the mounting plate, and the connecting plate of each mounting plate is fixedly arranged on the walking box or the tool box; the beneficial effect of the present preferred is that the mounting seat is provided to facilitate the installation of the connecting rod, and the connecting plate can be fixed to the corresponding tool box or walking box through bolts, and the mounting plate facilitates the installation of the connecting rod.

[0012] As preferred, the mounting plates of the two mounting seats are parallel, and there is a gap between the walking box and the tool box and the mounting plate on the corresponding side, and the two ends of the connecting rod are arranged on the mounting plate through fixing bolts; the beneficial effect of the present preferred is that the two ends of the connecting rod are fixed on the mounting plate through bolts, and the gap between the mounting plate and the walking box and the tool box facilitates the installation and fastening of the bolts.

[0013] As preferred, an operation handle mounting seat is arranged at the upper end of the main shaft box, the operation handle mounting seat is used for mounting an operation handle, a first oil injection screw hole is further arranged at the top of the main shaft box, the first oil injection screw hole is in communication with oil channels in the tool box and the walking box, a first sealing oil plug is threadedly connected with the first oil injection screw hole, and the first oil injection screw hole is located between the operation handle mounting seat and the engine system mounting end; the beneficial effect of the present preferred is that the operation handle mounting seat is provided to facilitate the installation of the operation handle, the first oil injection screw hole is arranged between the operation handle mounting seat and the engine system mounting end, which has the effect that the first sealing oil plug can form protection to ensure the sealing effect after the engine system and the operation handle are mounted, and the first oil injection screw hole will not affect the oil injection of the first oil injection screw hole, and the first oil injection screw hole is in communication with the oil channels of the tool box and the walking box to facilitate the cooperative lubrication of the transmission gears.

[0014] Preferably, the top of the travel box is provided with a second oil filling screw hole, and the second oil filling screw hole is threadedly connected to a second sealing oil plug; the beneficial effect of this preferred embodiment is that by providing the second oil filling screw hole, it can be further ensured that the engine oil can flow more smoothly to various positions in the travel box, thus ensuring the lubrication effect.

[0015] Preferably, the bottom of the spindle box, tool box, and travel box are all provided with oil drain screw holes, and each oil drain screw hole is threaded with an oil drain plug. The advantage of this preferred embodiment is that the oil drain screw holes provided at the bottom of the spindle box, tool box, and travel box facilitate oil draining during maintenance, making the operation simple and convenient.

[0016] Preferably, an observation window is provided on one side of the spindle box, and the observation window is a transparent plate. The advantage of this preferred option is that, by setting the observation window, it is possible to intuitively determine whether the amount of oil injected has reached the set value, ensuring that the amount of oil is sufficient, and it is also easier to observe.

[0017] The beneficial effects of this utility model are as follows:

[0018] In this design, the connecting rod significantly enhances the connection and support strength between the toolbox, travel box, and spindle box, thereby improving the connection stability of the bevel gears or helical gears in the structure. Simultaneously, the mounting base facilitates the installation and adjustment of the connecting rod. The placement of the first oil filling screw hole prevents external influences on the first sealing oil plug, protecting its sealing stability. Furthermore, oil drain screw holes are located at the bottom of the spindle box, toolbox, and travel box, allowing for better oil drainage and facilitating maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly of the gearbox housing of the four-wheel drive micro-tiller of this utility model.

[0020] Figure 2 This is a side view of the mounting bracket for the gearbox of the four-wheel drive micro-tiller of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Spindle box; 2. Engine system mounting end; 3. Tool box; 4. Travel box; 5. Mounting base; 6. Connecting rod; 7. Mounting plate; 8. Connecting plate; 9. Fixing bolt; 10. Operating handle mounting base; 11. First sealing oil plug; 12. Second sealing oil plug; 13. Oil drain plug; 14. Observation window. Detailed Implementation

[0023] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] like Figures 1-2 As shown:

[0025] A four-wheel drive micro-tiller gearbox includes a spindle box 1. The left end of the spindle box 1 is the engine system mounting end 2. A tool box 3 is fixedly installed below the left end of the spindle box 1 by bolts. A travel box 4 is fixedly installed at the rear end of the spindle box 1 by bolts. The bottom ends of the tool box 3 and the travel box 4 are inclined to the left and right respectively, with an optimal inclination angle of 15-30° to better adapt to the meshing direction of the transmission gears. In implementation, mounting seats 5 are fixedly installed on the right side of the tool box 3 and the left side of the travel box 4 by bolts. A connecting rod 6 is fixedly installed on the mounting seat 5 by bolts. The two ends of the connecting rod 6 are respectively connected to the mounting seats 5 on the corresponding sides to better distribute the vibration stress of the tool box 3 and the travel box 4 and enhance the connection strength of the spindle box 1.

[0026] In specific implementation, such as Figure 2 The mounting base 5 includes a mounting plate 7. Connecting plates 8 perpendicular to the mounting plate 7 are integrally formed at both ends of the mounting plate 7. The mounting plate 7 is provided with through holes for accommodating the connecting rod 6. Both connecting plates 8 are provided with through holes. Each connecting plate is fixed to the traveling box 4 or the tool box 3 by bolts 9. The mounting base 5 facilitates the installation of the connecting rod 6. The connecting plates 8 can be fixed to the corresponding tool box 3 or traveling box 4 by bolts, and the mounting plate 7 facilitates the installation and fixation of the connecting rod 6.

[0027] During the specific installation of the mounting base 5, the mounting plates of the two mounting bases 5 are parallel, and there are gaps between the traveling box 4 and the tool box 3 and the corresponding mounting plate 7. The two ends of the connecting rod 6 are fixed to the through holes of the mounting plate 7 by fixing bolts. The two ends of the connecting rod 6 are fixed to the mounting plate 7 by bolts, and the gap between the mounting plate 7 and the traveling box 4 and the tool box 3 facilitates the installation and tightening of bolts.

[0028] In implementation, an operating handle mounting seat 10 is provided in the middle of the main shaft box 1. The operating handle mounting seat 10 is used to install the operating handle. The operating handle is existing technology and will not be described in detail here. Its main function is to control the gear shifting and steering of the micro-tiller. A first oil filling screw hole is also provided on the top of the main shaft box 1. A first sealing oil plug 11 is threadedly connected to the first oil filling screw hole. Specifically, the first oil filling screw hole is located between the operating handle mounting seat 10 and the engine system mounting end 2. The setting of the operating handle mounting seat 10 facilitates the installation of the operating handle. The first oil filling screw hole is located between the operating handle mounting seat 10 and the engine system mounting end 2. Its effect is that after the engine system and the operating handle are installed, the first sealing oil plug 11 can form a protection to prevent it from being affected by the impact of external objects, thus avoiding the sealing effect. At the same time, it will not affect the oil filling of the first oil filling screw hole.

[0029] During implementation, a second oil filling screw hole is provided on the top of the right-side travel box 4, and a second sealing oil plug 12 is threaded into the second oil filling screw hole; specifically, by setting the second oil filling screw hole, it can be further ensured that the engine oil can flow more smoothly to various positions in the travel box 4, ensuring the lubrication effect.

[0030] In implementation, oil drain screw holes are provided at the bottom of the spindle box 1, tool box 3, and travel box 4, and each oil drain screw hole is threaded with an oil drain plug 13. In this embodiment, the oil drain screw holes provided at the bottom of the spindle box 1, tool box 3, and travel box 4 facilitate oil draining during maintenance, making the operation simple and convenient. Specifically, an observation window 14 is also provided on one side of the spindle box 1. The observation window 14 is a transparent plate, specifically acrylic or tempered glass. Through the setting of the observation window 14, it is possible to intuitively determine whether the oil injection volume has reached the set value, ensuring sufficient oil volume, and making it easier to observe.

[0031] The beneficial effects of this utility model are as follows:

[0032] In this design, the front end of the main spindle box 1 is the engine system mounting end 2, used to install the fuel tank and diesel or gasoline engine. The main spindle box 1 is used to install the input shaft and transmission components such as the gearbox. Its main function is to transmit the power of the engine system into the main spindle box 1, and then distribute the power to the travel box 7 and the tool box 3 through the transmission components of the main spindle box 1. In order to improve the overall integration and reduce the footprint of the micro-tiller, the power input of the travel box 4 and the tool box 3 is achieved through bevel gears or helical gears. That is, the bottom of the tool box 3 and the travel box 4 are inclined towards the sides of the main spindle box. In actual operation, due to factors such as the running time of the tool box and the travel box or the failure of fastening, the helical gear engagement can be easily affected, which in turn affects the transmission effect of the gearbox. By setting the connecting rod, the tool box 3 and the travel box 4 can be supported and constrained, thereby improving the connection strength between the travel box 4 and the tool box 3 and the main spindle box 1.

[0033] In this design, the connection and support strength of the tool box 3, the travel box 4, and the spindle box 1 are greatly improved by the setting of the connecting rod 6, thereby improving the connection stability of the bevel gear or helical gear in the structure. At the same time, the mounting base 5 facilitates the installation and adjustment of the connecting rod 6. The position of the first oil filling screw hole can prevent the first sealing oil plug 11 on it from being affected by the outside world, thus protecting its sealing stability. Oil drain screw holes are provided at the bottom of the spindle box 1, the tool box 3, and the travel box 4, which can better drain the oil and facilitate maintenance.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims.

Claims

1. A four-wheel micro-cultivator gearbox, comprising a main shaft box (1), the front end of the main shaft box (1) being an engine system mounting end (2), a cutter box (3) being arranged below the front end of the main shaft box (1), and a walking box (4) being arranged at the rear end of the main shaft box (1), characterized in that: The free end of the tool box (3) and the walking box (4) is inclined to the side away from the main shaft box (1), the opposite side of the tool box (3) and the walking box (4) is provided with a mounting seat (5), the mounting seat (5) is provided with a connecting rod (6), and the two ends of the connecting rod (6) are connected to the mounting seat (5) on the corresponding side.

2. The four-wheel micro-cultivator gearbox of claim 1, wherein: The mounting seat (5) comprises a mounting plate (7), and the two ends of the mounting plate (7) are provided with a connecting plate (8) perpendicular to the mounting plate (7), and the connecting plate (8) of each mounting plate (7) is fixedly arranged on the walking box (4) or the tool box (3).

3. The four-wheel micro-tractor gearbox according to claim 2, characterized in that: The mounting plates (7) of the two mounting seats (5) are parallel, and there is a gap between the walking box (4) and the tool box (3) and the mounting plate (7) on the corresponding side, the gap is used for mounting and fixing the connecting rod (6), and the two ends of the connecting rod (6) are arranged on the mounting plate (7) through a fixing bolt (9).

4. The four-wheel micro-tractor gearbox of claim 1, wherein: The upper end of the main shaft box (1) is provided with an operating handle mounting seat (10), the operating handle mounting seat (10) is used for mounting an operating handle, and the top of the main shaft box (1) is further provided with a first oil injection screw hole, the first oil injection screw hole is in communication with the oil channel in the tool box (3) and the walking box (4), the first oil injection screw hole is threadedly connected with a first sealing oil plug (11), and the first oil injection screw hole is located between the operating handle mounting seat (10) and the engine system mounting end (2).

5. The four-wheel micro-tractor gearbox of claim 1, wherein: The top of the walking box (4) is provided with a second oil injection screw hole, and the second oil injection screw hole is threadedly connected with a second sealing oil plug (12).

6. The four-wheel micro-tractor gearbox of claim 1, wherein: The bottom of the main shaft box (1), the tool box (3) and the walking box (4) is provided with a drain screw hole, and the drain screw hole is threadedly connected with a drain screw plug (13).

7. The four-wheel micro-tractor gearbox of claim 1, wherein: One side of the main shaft box (1) is further provided with an observation window (14), and the observation window (14) is a transparent plate.

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