Transmission case of mini-tiller

Abstract

The utility model relates to the technical field of mini-tillers, in particular to a mini-tiller transmission case which comprises a gearbox, a walking box, a transmission chain wheel shaft and a transmission mechanism, and the transmission mechanism comprises a traction box, a traction gear, a traction shaft, a traction rack, a driven rack, two stable bearings, a driven assembly and a lubricating assembly. The transmission chain wheel shaft starts to rotate and drives the traction gear to rotate, so that the traction rack is driven to rotate, and under the driving of the traction rack, the traction shaft stably starts to rotate under the action of the two stable bearings and drives the driven rack to rotate, so that the output end of the mini-tiller is driven to rotate through the driven assembly, and no chain exists in the process. Looseness of the chain does not need to be considered, the problems that in the prior art, when the mini-tiller is started through the chain to cultivate land, the chain is loosened after being used for a period of time, the transmission effect is poor, and even transmission cannot be achieved are solved, and the effect of prolonging the service life of the transmission box is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-tillage machines, in particular to a transmission box for a micro-tillage machine. Background Art

[0002] When farming, micro-tillers can effectively replace oxen and cultivate farmland areas that ordinary tillers cannot reach. Due to their small size and low weight, they are very convenient to transport. Existing micro-tiller transmission boxes are mostly chain-driven, which may cause loosening and breakage due to excessive friction during use, and have a short service life.

[0003] Prior art CN219734157U discloses a transmission box for a four-wheel drive micro-tillage machine, comprising a micro-tillage machine main body box, a connecting box, a gearbox, a traction drive unit box, a transmission sprocket shaft, a driven sprocket shaft, a chain, a control box, an upper oil pipeline, a lower oil pipeline and a nozzle, wherein the connecting box is fixedly connected to one side of the micro-tillage machine main body box, the gearbox is fixedly connected to the bottom of the connecting box, the traction drive unit box is fixedly connected to one side of the gearbox, and an oil collecting groove is provided at the bottom, the transmission sprocket shaft is rotatably connected in the gearbox, and is partially located in the traction drive unit box, the driven sprocket shaft is rotatably connected to the traction drive unit box, and is located on a side away from the transmission sprocket shaft, the chain is simultaneously engaged with the transmission sprocket shaft and the driven sprocket shaft, and the control box is fixedly connected to the traction drive unit box. On one side of the driving unit case, the upper oil pipe is fixedly connected to one side of the control box and communicated with the control box, the lower oil pipe is fixedly connected to one side of the control box and communicated with the control box and the oil collecting tank, the nozzle is fixedly connected to the upper oil pipe and is located in the traction driving unit case. When the micro-tillage machine is working, the transmission sprocket shaft drives the driven sprocket shaft to rotate through the chain. At this time, the control box is started, and the control box pumps the lubricating oil in the oil collecting tank into the nozzle through the lower oil pipe and the upper oil pipe. The nozzle sprays the chain to lubricate it. At the same time, the dripping lubricating oil flows into the oil collecting tank along the inclined inner wall of the traction driving unit case for recycling to lubricate the oil tank, thereby increasing the service life of the micro-tillage machine.

[0004] However, the above prior art uses a chain to start the micro-tillage machine to cultivate the land. After a period of use, the chain will loosen, resulting in poor transmission effect or even failure to transmit. Utility Model Content

[0005] The utility model aims to provide a transmission box for a micro-tillage machine, which solves the problem that in the prior art, the micro-tillage machine is started by a chain to till the land, and the chain becomes loose after being used for a period of time, resulting in poor transmission effect or even failure of transmission.

[0006] To achieve the above-mentioned purpose, the utility model provides a micro-tillage machine transmission box, including a gearbox, a travel box, a transmission sprocket shaft and a transmission mechanism, wherein the transmission mechanism includes a traction box, a traction gear, a traction shaft, a traction rack, a driven rack, two stabilizing bearings, a driven assembly and a lubrication assembly, wherein the travel box is fixedly connected to the bottom of the gearbox, the transmission sprocket shaft is rotatably connected to the gearbox, the traction box includes a left box and a right box, the left box is detachably connected to the right box by a plurality of bolts, and is detachably connected to one side of the gearbox by bolts, the traction gear is detachably connected to the traction rack ... The box is rotatably connected and meshes with the transmission sprocket shaft, the traction shaft is rotatably connected in the traction box, the traction rack is fixedly connected to one end of the traction shaft and meshes with the traction gear, the driven rack is fixedly connected to the traction shaft and is located at an end away from the traction rack, the stabilizing bearing includes an inner ring and an outer ring, the inner rings of the two stabilizing bearings are fixedly connected to the surfaces of the traction shaft, the outer walls of the two stabilizing bearings are fixedly connected to the inner wall of the traction box, the driven assembly is located below the driven rack, and the lubrication assembly is located on one side of the traction box.

[0007] Among them, the driven component includes a driven gear shaft and a mounting hexagonal shaft, the driven gear shaft is rotationally connected to the traction box, meshes with the driven rack, and is provided with a hexagonal hole, the mounting hexagonal shaft is slidingly connected to the driven rack and passes through the hexagonal hole.

[0008] Among them, the driven component also includes a limit plate and a fixing ring, the limit plate is fixedly connected to the surface of the mounting hexagonal shaft and is located on one side of the traction box, the fixing ring is slidably connected to the surface of the mounting hexagonal shaft and is detachably connected to the mounting hexagonal shaft by bolts.

[0009] Wherein, the lubrication assembly includes an oil tank and an oil pump, the oil tank is fixedly connected to one side of the traction box, and the oil pump is fixedly connected to the top of the oil tank.

[0010] Wherein, the lubrication assembly further includes a nozzle and a discharge port, wherein the nozzle is located above the traction rack and communicated with the interior of the oil tank, and the discharge port is located below the traction box.

[0011] Among them, the micro-tillage machine transmission box also includes a reinforcing mechanism, which includes two connecting components, and the connecting components include two connecting frames and a connecting rod. The two connecting components are respectively located on both sides of the traction box and the gearbox, and the two connecting frames are respectively fixedly connected to one side of the traction box and the gearbox, and the connecting rod is fixedly connected to the two connecting frames and is located between the two connecting frames.

[0012] The utility model discloses a micro-tiller transmission box. When the micro-tiller is pulled to till the land, the transmission sprocket shaft starts to rotate, driving the traction gear to rotate, thereby driving the traction rack to rotate. Driven by the traction rack, the traction shaft starts to rotate stably under the action of the two stabilizing bearings, driving the driven rack to rotate, thereby driving the output end of the micro-tiller to rotate through the driven component. There is no chain in the process, and there is no need to consider the looseness of the chain. This avoids the problem that the chain will loosen after a period of use in starting the micro-tiller to till the land through the chain in the prior art, resulting in poor transmission effect or even failure to transmit, thereby achieving the effect of increasing the service life of the transmission box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0015] Figure 2 It is a schematic structural diagram of the right box and its interior of the traction box of the first embodiment of the utility model.

[0016] Figure 3 It is a schematic structural diagram of the installation of the hexagonal shaft of the first embodiment of the utility model.

[0017] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0018] 101-gearbox, 102-travel box, 103-drive sprocket shaft, 104-traction box, 105-traction gear, 106-traction rack, 107-driven rack, 108-stabilizing bearing, 109-driven gear shaft, 110-installing hexagonal shaft, 111-limiting plate, 112-fixing ring, 113-oil tank, 114-oil pump, 115-nozzle, 116-discharge port, 117-traction shaft, 201-connecting frame, 202-connecting rod. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figure 1-Figure 3 ,in Figure 1It is a schematic diagram of the overall structure of the first embodiment of the utility model; Figure 2 It is a schematic diagram of the structure of the right box and its interior of the traction box of the first embodiment of the utility model; Figure 3 It is a schematic structural diagram of the installation of the hexagonal shaft of the first embodiment of the utility model.

[0022] The utility model provides a transmission box for a micro-tillage machine, comprising a gearbox 101, a travel box 102, a transmission sprocket shaft 103 and a transmission mechanism, wherein the transmission mechanism comprises a traction box 104, a traction gear 105, a traction shaft 117, a traction rack 106, a driven rack 107, two stabilizing bearings 108, a driven component and a lubrication component, wherein the driven component comprises a driven gear shaft 109, an installation hexagonal shaft 110, a limit plate 111 and a fixing ring 112, and the lubrication component comprises an oil tank 113, an oil pump 114, a nozzle 115 and a discharge port 116. The above-mentioned scheme solves the problem that the above prior art starts the micro-tillage machine to cultivate land by a chain, and the chain becomes loose after being used for a period of time, which leads to poor transmission effect or even failure of transmission.

[0023] According to this specific embodiment, the walking box 102 is fixedly connected to the bottom of the gearbox 101, the transmission sprocket shaft 103 is rotatably connected to the gearbox 101, the traction box 104 includes a left box and a right box, the left box and the right box are detachably connected by a plurality of bolts, and are detachably connected to one side of the gearbox 101 by bolts, the traction gear 105 is rotatably connected to the traction box 104, and meshes with the transmission sprocket shaft 103, the traction shaft 117 is rotatably connected to the traction box 104, the traction rack 106 is fixedly connected to one end of the traction shaft 117, and meshes with the traction gear 105, the driven rack 107 is fixedly connected to the traction shaft 117, and is located at an end away from the traction rack 106, and the stabilizing bearing 108 includes The micro-tillage machine comprises an inner ring and an outer ring, wherein the inner ring is rotatably connected to the outer ring, the inner rings of the two stabilizing bearings 108 are fixedly connected to the surface of the traction shaft 117, the outer rings of the two stabilizing bearings 108 are fixedly connected to the inner wall of the traction box 104, the driven component is located below the driven rack 107, and the lubrication component is located on one side of the traction box 104. When the micro-tillage machine is pulled to plow the land, the transmission sprocket shaft 103 starts to rotate, driving the traction gear 105 to rotate, thereby driving the traction rack 106 to rotate. Driven by the traction rack 106, the traction shaft 117 starts to rotate stably under the action of the two stabilizing bearings 108, and the output end of the micro-tillage machine is driven to rotate through the driven component. There is no chain in the meantime, and there is no need to consider the chain loosening.

[0024] Among them, the driven gear shaft 109 is rotatably connected to the traction box 104, and meshes with the driven rack 107, and is provided with a hexagonal hole. The mounting hexagonal shaft 110 is slidably connected to the driven rack 107 and passes through the hexagonal hole. When the driven rack 107 rotates, the driven gear shaft 109 rotates, driving the mounting hexagonal shaft 110 (i.e., the output end of the micro-tillage machine transmission box) to rotate, thereby cultivating the farmland.

[0025] Secondly, the limiting plate 111 is fixedly connected to the surface of the mounting hexagonal shaft 110 and is located on one side of the traction box 104. The fixing ring 112 is slidably connected to the surface of the mounting hexagonal shaft 110 and is detachably connected to the mounting hexagonal shaft 110 by bolts. When the mounting hexagonal shaft 110 needs to be replaced, the bolts in the fixing ring 112 are taken out, and then the fixing ring 112 and the mounting hexagonal shaft 110 can be taken out. After replacement, the fixing ring 112 is installed on the mounting hexagonal shaft 110, and it and the limiting plate 111 are close to the driven gear shaft 109. At this time, the bolts are screwed into the fixing ring 112 and the mounting hexagonal shaft 110, and the replacement is completed.

[0026] At the same time, the oil tank 113 is fixedly connected to one side of the traction box 104, and the oil pump 114 is fixedly connected to the top of the oil tank 113. When lubricating, the oil pump 114 is started to pump the lubricating oil in the oil tank 113 through a pipeline to the traction rack 106, so as to lubricate the traction rack 106 and the traction gear 105, which can effectively prevent jamming and aging.

[0027] At the same time, the nozzle 115 is located above the traction rack 106 and is connected to the inside of the oil tank 113. The discharge port 116 is located below the traction box 104. During lubrication, the lubricating oil pumped out by the oil pump 114 enters the nozzle 115 through a pipeline and is then sprayed out from the nozzle 115, which can make the distribution of the lubricating oil more uniform. At the same time, the dripping lubricating oil will be discharged from the discharge port 116 under the action of gravity to prevent the lubricating oil in the traction box 104 from overflowing.

[0028] When the micro-tillage machine is pulled to plow the land, the transmission sprocket shaft 103 starts to rotate, driving the traction gear 105 to rotate, thereby driving the traction rack 106 to rotate. Driven by the traction rack 106, the traction shaft 117 starts to rotate stably under the action of the two stabilizing bearings 108, driving the driven rack 109 to rotate, causing the driven gear shaft 109 to rotate, driving the installation hexagonal shaft 110 (i.e., the output end of the micro-tillage machine transmission box) to rotate, thereby cultivating the farmland; when lubricating, start the oil pump 114, pump the lubricating oil in the oil tank 113 through the pipeline to the nozzle 115, and then spray it from the nozzle 115, so that The distribution of lubricating oil is more uniform, so as to lubricate the traction rack 106 and the traction gear 105, which can effectively prevent jamming and aging. At the same time, the dripping lubricating oil will be discharged from the discharge port 116 under the action of gravity to prevent the lubricating oil in the traction box 104 from overflowing; when it is necessary to replace the installation hexagonal shaft 110, the bolts in the fixing ring 112 are taken out, and then the fixing ring 112 and the installation hexagonal shaft 110 can be taken out. After replacement, the fixing ring 112 is installed on the installation hexagonal shaft 110, and it and the limit plate 111 are close to the driven gear shaft 109. At this time, the bolts are screwed into the fixing ring 112 and the installation hexagonal shaft 110, and the replacement is completed. During the operation of the micro-tillage machine transmission box, there are no parts driven by the chain, and there is no need to consider the problem of chain loosening, which avoids the problem that the chain will loosen after a period of use in the prior art of starting the micro-tillage machine to cultivate the land, resulting in poor transmission effect or even no transmission, thereby increasing the service life of the transmission box.

[0029] The second embodiment of the present application is:

[0030] See also Figure 4 , Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0031] On the basis of the first embodiment, the micro-tillage machine transmission box of this embodiment further includes a reinforcing mechanism, the reinforcing mechanism includes two connecting components, and the connecting components include two connecting frames 201 and a connecting rod 202 .

[0032] Among them, the two connecting components are respectively located on both sides of the traction box 104 and the gearbox 101, the two connecting frames 201 are respectively fixedly connected to one side of the traction box 104 and the gearbox 101, and the connecting rod 202 is fixedly connected to the two connecting frames 201 and is located between the two connecting frames 201. When the micro-tillage machine is working, driving and working in the farmland will be accompanied by severe vibration. The traction box 104 and the gearbox 101 connected only by bolts may be passively separated. Under the connection of the four connecting frames 201 and the two connecting rods 202, if the original bolts fall off, the connection between the traction box 104 and the gearbox 101 can still be maintained, thereby achieving the effect of strengthening the connection strength between the traction box 104 and the gearbox 101.

[0033] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A transmission box for a micro-tillage machine, comprising a gearbox, a travel box and a transmission sprocket shaft, wherein the travel box is fixedly connected to the bottom of the gearbox, and the transmission sprocket shaft is rotatably connected to the gearbox, characterized in that: Also includes a transmission mechanism; The transmission mechanism includes a traction box, a traction gear, a traction shaft, a traction rack, a driven rack, two stabilizing bearings, a driven assembly and a lubrication assembly. The traction box includes a left box and a right box. The left box and the right box are detachably connected by multiple bolts and are detachably connected to one side of the gearbox by bolts. The traction gear is rotatably connected to the traction box and meshes with the transmission sprocket shaft. The traction shaft is rotatably connected in the traction box. The traction rack is fixedly connected to one end of the traction shaft and meshes with the traction gear. The driven rack is fixedly connected to the traction shaft and is located at an end away from the traction rack. The stabilizing bearing includes an inner ring and an outer ring. The inner rings of the two stabilizing bearings are fixedly connected to the surface of the traction shaft. The outer walls of the two stabilizing bearings are fixedly connected to the inner wall of the traction box. The driven assembly is located below the driven rack, and the lubrication assembly is located on one side of the traction box.

2. The micro-tillage machine transmission box according to claim 1, characterized in that: The driven assembly includes a driven gear shaft and a mounting hexagonal shaft. The driven gear shaft is rotationally connected to the traction box and meshes with the driven rack and is provided with a hexagonal hole. The mounting hexagonal shaft is slidably connected to the driven rack and passes through the hexagonal hole.

3. The micro-tillage machine transmission box according to claim 2, characterized in that: The driven assembly also includes a limit plate and a fixing ring. The limit plate is fixedly connected to the surface of the hexagonal shaft installation and is located on one side of the traction box. The fixing ring is slidably connected to the surface of the hexagonal shaft installation and is detachably connected to the hexagonal shaft installation via bolts.

4. The micro-tillage machine transmission box according to claim 1, characterized in that: The lubrication assembly comprises an oil tank and an oil pump. The oil tank is fixedly connected to one side of the traction box, and the oil pump is fixedly connected to the top of the oil tank.

5. The micro-tillage machine transmission box according to claim 4, characterized in that: The lubrication assembly further comprises a spray head and a discharge port, wherein the spray head is located above the traction rack and communicated with the interior of the oil tank, and the discharge port is located below the traction box.

6. The micro-tillage machine transmission box according to claim 1, characterized in that: The micro-tillage machine transmission box also includes a reinforcing mechanism, which includes two connecting components, and the connecting components include two connecting frames and a connecting rod. The two connecting components are respectively located on both sides of the traction box and the gearbox, and the two connecting frames are respectively fixedly connected to one side of the traction box and the gearbox, and the connecting rod is fixedly connected to the two connecting frames and is located between the two connecting frames.

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