Speed-changing walking machine and agricultural machine

Abstract

The present application discloses a variable speed traveler and an agricultural machine, and belongs to the technical field of agricultural power machinery. The variable speed traveler includes a housing; an oil storage tank, which is connected and arranged at the bottom of the housing; spiral blades, which are arranged in the oil storage tank; a filtering mechanism, which includes a filter box; a first oil pump is arranged between the oil storage tank and the filtering mechanism to transfer the content at one end of the oil storage tank to the box body in the filter box, and the box body can be connected to the housing so that the oil in the box body can enter the housing. The technical solution of the present application adopts spiral blades and a first oil pump to extract impurities and lubricating oil from the oil storage tank, and then transports the lubricating oil to the box body after filtering through the filtering mechanism, so that the lubricating oil can be recycled, which solves the problem that the maintenance of the lubricating oil in the oil storage tank is relatively troublesome and cumbersome, and thus achieves the technical effect of facilitating lubrication and maintenance of the oil storage tank.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural power machinery, and more specifically, to a variable speed travel device and an agricultural machine. Background Art

[0002] The variable speed travel device is a kind of agricultural power machinery, which enables micro-tillers, rotary tillers, seed drills and other agricultural machinery to be driven in multiple gears through the variable speed travel device to adapt to different agricultural operation occasions.

[0003] In the related technology, for example, the patent with the prior art publication number CN215529845U provides a steerable walking device that is easy to remove teeth for the purpose of improving work efficiency. The patent provides the following technical solutions: a steerable walking device that is easy to remove teeth, including a drive system, an upper box body, a lower box body and an upper box body cover, the upper box body, the lower box body and the upper box body cover are connected by a first fixing bolt, the upper box body and the lower box body are connected to the drive system, a worm shaft assembly connected to the drive system is arranged in the middle of the upper box body and the lower box body, the upper box body and the lower box body are provided with symmetrically distributed wheel axles on both sides of the worm assembly, a propulsion mechanism is arranged on the outer side of the wheel axle, the propulsion mechanism is connected to the adjustment mechanism, the connecting surface between the adjustment mechanism and the propulsion mechanism is arranged to be an oblique arc shape, and a circular locating pin is arranged on one side of the propulsion mechanism.

[0004] The operating environment of this type of equipment is harsh, and the lubricating oil in its travel device often carries a lot of debris and impurities and is concentrated in the oil storage tank. The lubricating oil inside the oil storage tank cannot be recycled. Due to the limited internal capacity of the lubrication box, the lubrication box needs to be frequently replenished with lubricating oil, making the maintenance work of the agricultural machinery during use more cumbersome. Summary of the invention

[0005] The purpose of the present application is to provide a variable speed travel device and an agricultural machine, which solves the technical problem that the maintenance of lubricating oil in the oil storage tank is troublesome and cumbersome, and achieves the technical effect of facilitating the lubrication maintenance of the oil storage tank.

[0006] One aspect of the present application provides a variable speed walking device, comprising:

[0007] case;

[0008] An oil storage tank is arranged at the bottom of the housing, and the oil storage tank is connected with the interior of the housing through an oil leakage port;

[0009] A spiral blade is disposed in the oil storage tank, and the spiral blade is driven to transfer the content in the oil storage tank to one end of the oil storage tank;

[0010] A filter mechanism is arranged at one side of the oil storage tank, and the filter mechanism includes a filter box; a first oil pump is arranged between the oil storage tank and the filter mechanism, and the first oil pump can transfer the content at one end of the oil storage tank to the filter box;

[0011] The box body is arranged at the top end of the shell body, and is used to store the oil body filtered by the filtering mechanism. The box body can be communicated with the shell body so that the oil body in the box body can enter the shell body.

[0012] As an optional solution of the technical solution of this application document, the filtering mechanism also includes:

[0013] A filter housing, wherein the filter box is detachably disposed in the filter housing, and valves are disposed on both sides of the filter housing;

[0014] A flow meter is arranged on a side of the filter housing close to the box body;

[0015] The oil drain valve is connected and arranged at the bottom of the filter housing.

[0016] As an optional solution of the technical solution of this application document, the filtering mechanism also includes:

[0017] A connecting pipe, one end of which is detachably arranged on the top of the filter box, and the other end of the connecting pipe is connected to an end of the filter housing close to the box body;

[0018] A fixed electric sheet, fixedly arranged in the connecting pipe at one end away from the filter box;

[0019] The movable electric sheet is slidably arranged in the connecting pipe through a return spring.

[0020] As an optional solution of the technical solution of the present application document, an alarm device is configured on one side of the shell, and the alarm device responds to the conduction between the fixed electric sheet and the movable electric sheet.

[0021] As an optional solution of the technical solution of this application document, it also includes:

[0022] A flow diversion mechanism, the flow diversion mechanism is arranged between the filtering mechanism and the box body;

[0023] Wherein, the diversion mechanism comprises:

[0024] A flow divider, arranged at the output end of the filtering mechanism, for dividing the filtered oil;

[0025] A plurality of shunt pipes are provided, and the plurality of shunt pipes are all connected and arranged on one side of the shunt device, and the other end of the shunt pipe is connected to the box body.

[0026] As an optional solution of the technical solution of this application document, it also includes:

[0027] An oil spraying mechanism is arranged on the top of the shell, and the oil spraying mechanism is connected with the box body through a second oil pump;

[0028] Wherein, the oil pouring mechanism comprises:

[0029] An oil spray housing is connected and arranged on the top of the box body;

[0030] A diverter groove is arranged on a side of the oil spray housing close to the second oil pump;

[0031] An oil pouring pipe is arranged on one side of the diversion groove, and an oil pouring port is opened on one side of the oil pouring pipe.

[0032] As an optional solution of the technical solution of this application document, the oil pouring port is opened at the top of the oil pouring pipe;

[0033] The top end of the oil pouring pipe is provided with an oil pouring cover body, and a side of the oil pouring cover body facing the oil pouring pipe is provided with an arc groove corresponding to the oil pouring port.

[0034] As an optional solution of the technical solution of this application document, the second oil pump transmission is configured on one side of the driving shaft.

[0035] As an optional solution of the technical solution of the present application document, two cooling chambers are configured at the bottom of the shell on both sides of the oil storage tank, and the diverter pipe is arranged to pass through the two cooling chambers in sequence.

[0036] Another aspect of the present application also provides an agricultural machine, including the aforementioned variable speed travel device.

[0037] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0038] (1) The technical solution of the present application adopts a spiral blade and a first oil pump to extract impurities and lubricating oil from the oil storage tank, and then transports the lubricating oil to the box after filtering through a filtering mechanism, so that the lubricating oil can be recycled and there is no need to frequently replenish the lubricating oil, thereby solving the problem that the maintenance of the lubricating oil in the oil storage tank is relatively troublesome and tedious, and thus achieving the technical effect of facilitating the lubrication maintenance of the oil storage tank.

[0039] (2) The technical solution of the present application provides a cooling chamber on the inner side of the shell, and cools the circulating lubricating oil through the coolant in the cooling chamber, thereby ensuring the next use of the lubricating oil and increasing the use effect of the equipment.

[0040] (3) The technical solution of the present application can temporarily store filtered impurities by setting a detachable filter box inside the filter mechanism. When the flow meter detects that the lubricating oil flow is too low, the filter box can be replaced or cleaned, thereby increasing the use effect of the equipment.

[0041] (4) The technical solution of the present application is to dispose an oil pouring cover with an arc-shaped groove on the top of the oil pouring mechanism, so as to divert the lubricating oil sprayed from the oil pouring port, so that the lubricating oil pours down in a waterfall shape, thereby increasing the lubrication effect of the equipment and improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the overall structure of a variable speed walking device disclosed in a preferred embodiment of the present application;

[0043] Figure 2 A schematic cross-sectional structure diagram of a housing in a speed-changing walking device disclosed in a preferred embodiment of the present application;

[0044] Figure 3 This is a schematic structural diagram of a housing in a speed-changing walking device disclosed in a preferred embodiment of the present application;

[0045] Figure 4 This is a schematic diagram of the structure of the driving structure in the variable speed walking device disclosed in a preferred embodiment of the present application;

[0046] Figure 5 It is a schematic diagram of the assembly structure of the spiral blade and the first oil pump in the variable speed travel device disclosed in a preferred embodiment of the present application;

[0047] Figure 6 This is a schematic diagram of the assembly structure of the filtering mechanism and the diverting mechanism in a variable speed traveler disclosed in a preferred embodiment of the present application;

[0048] Figure 7 A schematic diagram of another perspective of the assembly structure of the filtering mechanism and the diverting mechanism in the variable speed walking device disclosed in a preferred embodiment of the present application;

[0049] Figure 8 This is a schematic diagram of the structure of a filter box in a variable speed traveler disclosed in a preferred embodiment of the present application;

[0050] Fig. 9 This is an internal cross-sectional view of a filter box in a variable speed traveler disclosed in a preferred embodiment of the present application;

[0051] Fig.10 for Fig. 9 A partial enlarged view of the middle A;

[0052] Fig.11 This is a structural schematic diagram of an oil spraying mechanism in a variable speed walking device disclosed in a preferred embodiment of the present application;

[0053] Fig.12 The present invention is a schematic structural diagram of an oil pouring cover in a variable speed travel device disclosed in a preferred embodiment of the present application.

[0054] Explanation of reference numerals in the figure: 1, housing; 101, cooling chamber; 1011, liquid inlet pipe; 1012, liquid outlet pipe; 1013, liquid pump; 1014, driving structure; 10141, first gear; 10142, second gear; 102, gear lever;

[0055] 2. drive shaft; 201. flywheel;

[0056] 3. Output shaft;

[0057] 4. Oil storage tank;

[0058] 5. Oil leakage;

[0059] 6. Spiral leaves;

[0060] 7. first oil pump; 701. first pulley; 702. first belt;

[0061] 8. Filter mechanism; 801. Filter housing; 802. Valve; 803. Filter box; 804. Oil drain valve; 805. Flow meter; 806. Connecting pipe; 807. Fixed electric sheet; 808. Moving electric sheet; 809. Return spring;

[0062] 9. Diverter mechanism; 901. Diverter; 902. Diverter pipe;

[0063] 10. Box body; 1001. Oil filling nozzle;

[0064] 11. Oil pouring mechanism; 1101. Oil pouring housing; 1102. Diverter slot; 1103. Oil pouring pipe; 11031. Oil pouring port; 1104. Oil pouring cover; 11041. Arc groove;

[0065] 12. A second oil pump; 1201. A second pulley; 1202. A second belt. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0067] Reference below Figure 1-Figure 12 The speed-changing walking device and its working principle recorded in the embodiments of the present application are described.

[0068] Reference Figure 1 , Figure 2 and Figure 5 The embodiment of the present application discloses a variable speed walking device, including a shell 1, the interior of the shell 1 is rotatably connected with a driving shaft 2 and an output shaft 3, the driving shaft 2 and the output shaft 3 are driven by a gear set, an oil storage tank 4 is opened at the bottom of the shell 1, and the top of the oil storage tank 4 is connected with the interior of the shell 1 through an oil leakage port 5, and the interior of the oil storage tank 4 is rotatably connected with a spiral blade 6, and the spiral blade 6 is used to clean the lubricating oil and impurities inside the oil storage tank 4, a first oil pump 7 is arranged on the outside of the shell 1, the driving end of the first oil pump 7 is coaxially fixed with the fixed end of the spiral blade 6, and the driving end of the first oil pump 7 is linked with the driving shaft 2, a filtering mechanism 8 is fixedly arranged on the output end of the first oil pump 7, a diverter mechanism 9 is fixedly arranged on the output end of the filtering mechanism 8, a box 10 is fixedly arranged on the other end of the diverter mechanism 9, the inner side of the box 10 is fixedly arranged on the outer side of the shell 1, and an oil sprinkling mechanism 11 is arranged on the top of the shell 1, and the oil sprinkling mechanism 11 is connected with the box 10 through a second oil pump 12.

[0069] The lubricating oil in the casing 10 is extracted by the second oil pump 12 and then pressed into the oil sprinkling mechanism 11. The oil sprinkling mechanism 11 lubricates the gear set in the casing 1. The used lubricating oil flows into the oil storage tank 4 through the oil leakage port 5. The lubricating oil and impurities in the oil storage tank 4 are cleaned out by the spiral blades 6. The impurities and lubricating oil are extracted by the first oil pump 7 and pressed into the filtering mechanism 8. The lubricating oil and impurities are separated by the filtering mechanism 8. The lubricating oil is transmitted to the diverter mechanism 9 through the filtering mechanism 8, and then transmitted to the casing 10 through the diverter mechanism 9, waiting for the next use. At this point, the process of recycling lubricating oil for equipment is completed, the lubricating oil in the oil storage tank 4 is recycled, and there is no need to frequently replenish the lubricating oil. The technical problem that the lubricating oil maintenance work in the oil storage tank is relatively troublesome and cumbersome is solved, and the technical effect of facilitating lubrication and maintenance of the oil storage tank is achieved.

[0070] Reference Figure 1 , Figure 6 and Figure 8 The filtering mechanism 8 includes a filtering housing 801, both ends of which are provided with valves 802, one end of each of the two valves 802 is respectively fixed to the output end of the first oil pump 7 and the input end of the diversion mechanism 9, a filtering box 803 is detachably provided on the inner side of the filtering housing 801, an oil drain valve 804 is provided at the bottom of the filtering housing 801, and a flow meter 805 is provided at the output end of the filtering housing 801.

[0071] Impurities in the lubricating oil are filtered through the filter box 803 and temporarily stored in the filter box 803. When the flow meter 805 detects that the flow of the lubricating oil is too low, the filter box 803 needs to be cleaned or replaced, the two valves 802 are closed, and a small amount of lubricating oil in the filter mechanism 8 is released through the oil drain valve 804. Then the filter housing 801 can be opened and the filter box 803 can be removed and cleaned to ensure the filtering effect of the equipment.

[0072] It is understandable that in some cases, the flow meter 805 may detect that the flow rate of the filtered lubricating oil is low because the amount of lubricating oil in the box 10 is small, and then the amount of oil entering the housing 1 and the oil storage tank 4 is small, so that even if the filter box 803 can effectively filter, there is still less lubricating oil passing through the flow meter 805. Therefore, in a specific embodiment of the present application, Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the filtering mechanism 8 also includes a connecting pipe 806, one end of which is inserted into the top of the filter box 803, and the other end of the connecting pipe 806 is inserted into the end of the filter shell 801 close to the box body 10; in addition, a fixed electric sheet 807 is fixedly arranged in the connecting pipe 806, and the fixed electric sheet 807 is arranged on the side of the connecting pipe 806 away from the filter box 803. A movable electric sheet 808 is also connected to the connecting pipe 806 through a reset spring 809, and the movable electric sheet 808 can move in the connecting pipe 806, that is, during operation, when the oil pressure in the connecting pipe 806 close to the filter box 803 is relatively large, a part of the lubricating oil enters the connecting pipe 806 to drive the movable electric sheet 808 to stretch the reset spring 809 and move until the movable electric sheet 808 contacts the fixed electric sheet 807, and the two are conductive.

[0073] In another technical solution, an alarm device (not shown) is arranged on one side of the housing 1, and the alarm device responds to the conduction between the fixed electric sheet 807 and the movable electric sheet 808. In the actual working process, the alarm device can be a sound signal alarm device or a light signal alarm device.

[0074] Through the above technical solution, the alarm device sounds an alarm, which means that the pressure on both sides of the filter box 803 is relatively large. Therefore, in the actual working process, the alarm device is combined with the flow rate of the flow meter 805 to make the following judgment:

[0075] The alarm device does not sound an alarm, and the flow meter 805 detects that the lubricating oil flow is normal: the lubricating oil circulates normally, and the filter box works normally;

[0076] The alarm device does not sound an alarm, and the flow meter 805 detects that the lubricating oil flow is too low: the amount of lubricating oil involved in the circulation is small, and lubricating oil needs to be injected into the box 10 from the oil filling nozzle 1001, and the filter box 803 works normally;

[0077] The alarm device sounds an alarm, and the flow meter 805 detects that the flow rate of the lubricating oil is normal: the amount of lubricating oil involved in the circulation is large, and the first oil pump 7 and / or the second oil pump 12 need to be suspended;

[0078] The alarm device sounds an alarm, and the flow meter 805 detects that the lubricating oil flow is too low: the filtering efficiency of the filter box 803 is low, and the filter box 803 needs to be cleaned or replaced.

[0079] By providing the connecting tube 806, the fixed electric sheet 807 and the movable electric sheet 808, it is possible to more accurately judge whether the filter box 803 needs to be cleaned and replaced, and to judge whether the amount of lubricating oil involved in the circulation is normal, so as to inject new lubricating oil into the box body 10 in time.

[0080] Reference Figure 1 , Figure 6 and Fig.11 The diversion mechanism 9 includes a plurality of diverters 901, and the plurality of diverters 901 divert the flow through the diversion pipe 902. The bottom of the shell 1 is located on both sides of the oil storage tank 4 and has two cooling chambers 101. The cooling chamber 101 stores circulating coolant. The plurality of diverters 901 pass through the two cooling chambers 101 and are fixed to the bottom of the box 10.

[0081] The lubricating oil is diverted to several diverters 901 through the diverter pipe 902. When the equipment is running, heat is generated inside the shell 1. The lubricating oil has a certain temperature after use. When the several diverters 901 transmit the lubricating oil, it passes through two cooling chambers 101. The coolant circulating in the two cooling chambers 101 cools the lubricating oil quickly to ensure the next use.

[0082] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 Two liquid inlet pipes 1011 are provided on one side of the two cooling chambers 101, and two liquid outlet pipes 1012 are provided on the other side of the two cooling chambers 101. The two liquid outlet pipes 1012 are connected to the interior of the two cooling chambers 101 through two liquid pumps 1013. The two liquid pumps 1013 are linked to the driving shaft 2 through the driving structure 1014. Radiators are provided outside the two liquid inlet pipes 1011 and the two liquid outlet pipes 1012.

[0083] The coolant is input into the cooling chamber 101 through the liquid inlet pipe 1011, and the two liquid pumps 1013 are driven by the driving structure 1014 to extract the coolant in the cooling chamber 101 and press it into the liquid outlet pipe 1012. The coolant in the liquid outlet pipe 1012 is cooled by the radiator and then enters the cooling chamber 101 through the liquid inlet pipe 1011, completing the circulation of the coolant.

[0084] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The driving structure 1014 includes two first gears 10141, the inner sides of the two first gears 10141 are respectively fixed to the driving ends of the two liquid pumps 1013, the two first gears 10141 are meshedly connected with a second gear 10142, and the inner side of the second gear 10142 is fixed to one end of the driving shaft 2.

[0085] The rotation of the driving shaft 2 drives the second gear 10142 to rotate, thereby driving the two first gears 10141 to rotate, so that the two first gears 10141 respectively drive the two liquid pumps 1013 to operate, thereby ensuring the driving effect of the coolant circulation.

[0086] Reference Figure 1 and Figure 5 Two first pulleys 701 are arranged on the outer side of the first oil pump 7, and the outer sides of the two first pulleys 701 are meshed and connected with a first belt 702. The inner side of one of the first pulleys 701 is fixed to the driving end of the first oil pump 7, and the inner side of the other first pulley 701 is fixed to one end of the driving shaft 2.

[0087] The rotation of the driving shaft 2 drives a first pulley 701 to rotate, and the first belt 702 drives another first pulley 701 to rotate, thereby driving the first oil pump 7 to operate, thereby ensuring the operation of the first oil pump 7 and the recycling effect of the lubricating oil.

[0088] Reference Figure 1 , Figure 6 and Fig.11 Two second pulleys 1201 are arranged on the outer side of the second oil pump 12, and the outer sides of the two second pulleys 1201 are meshedly connected with a second belt 1202. The inner side of one of the second pulleys 1201 is fixed to the driving end of the second oil pump 12, and the inner side of the other second pulley 1201 is fixed to the outer side of the driving shaft 2. A flywheel 201 is fixed at one end of the driving shaft 2, and the flywheel 201 is connected to the diesel engine of the agricultural machine.

[0089] The diesel engine drives the drive shaft 2 to rotate through the flywheel 201, thereby driving a second pulley 1201 to rotate, and drives another second pulley 1201 to rotate through the second belt 1202, thereby driving the second oil pump 12 to operate, ensuring the operation of the second oil pump 12, thereby ensuring the lubrication effect of the equipment.

[0090] Reference Figure 1 , Fig.11 and Fig.12 The oil spraying mechanism 11 includes an oil spraying shell 1101. A diverter groove 1102 is provided on the top of the oil spraying shell 1101 near the second oil pump 12. One side of the diverter groove 1102 is fixed to the second oil pump 12, and a plurality of oil spraying pipes 1103 are provided on the other side of the diverter groove 1102.

[0091] The lubricating oil is pressed into the diverter groove 1102 by the second oil pump 12 , and the diverter groove 1102 transmits the lubricating oil to a plurality of oil spraying pipes 1103 , and the plurality of oil spraying pipes 1103 lubricate the gear set inside the housing 1 .

[0092] Reference Figure 1 , Fig.11 and Fig.12 The oil pouring mechanism 11 further includes an oil pouring cover body 1104 , a plurality of arc grooves 11041 are formed at the bottom of the oil pouring cover body 1104 , and a plurality of oil pouring ports 11031 are formed at the tops of the plurality of oil pouring pipes 1103 .

[0093] The lubricating oil is sprayed onto the corresponding arc groove 11041 through the oil spraying port 11031 , and the arc groove 11041 disperses the lubricating oil so that the lubricating oil is sprayed onto the gear set more evenly.

[0094] Reference Figure 1 , Figure 6 and Fig.12 A plurality of gear levers 102 are also provided on the outside of the shell 1 for controlling the speed change effect of the walking device, and an oil filling nozzle 1001 is provided on the outside of the box body 10.

[0095] By turning the second oil pump 12, the gear position can be adjusted to control the speed of the traveler, and the lubricating oil can be added to the box 10 through the oil filling nozzle 1001 to ensure the normal use of the equipment.

[0096] In summary, when the speed change walking device disclosed in the embodiment of the present application is in use, the lubricating oil is pressed into the diverter groove 1102 through the second oil pump 12, and the diverter groove 1102 transmits the lubricating oil to a plurality of oil spraying pipes 1103, and the plurality of oil spraying pipes 1103 lubricate the gear set inside the housing 1. The used lubricating oil flows into the oil storage tank 4 through the oil leakage port 5, and is rotated by the driving shaft 2 to drive a first pulley 701 to rotate, and another first pulley 701 is driven to rotate through the first belt 702, thereby driving the spiral blade 6 and the first oil pump 7 to operate, and the lubricating oil and impurities in the oil storage tank 4 are cleaned out by the spiral blade 6, and then the impurities and lubricating oil are extracted by the first oil pump 7 and pressed into the filtering mechanism 8, and the impurities in the lubricating oil are filtered out by the filter box 803, and the impurities are temporarily stored in the filter box 803, and the lubricating oil is transmitted to the diverter mechanism 9 through the filter mechanism 8, and the lubricating oil is diverted to a plurality of diverters 901 through the diverter pipe 902.

[0097] When the equipment is running, heat is generated inside the shell 1. The lubricating oil has a certain temperature after use. When the lubricating oil is transmitted by the plurality of diverters 901, it passes through the two oil spraying mechanisms 11. The lubricating oil is quickly cooled by the coolant circulating in the two oil spraying mechanisms 11, and is transmitted to the box 10 through the diverter mechanism 9, waiting for the next use. The process of recycling the lubricating oil for lubrication of the equipment is completed. Through the above scheme, the lubricating oil in the oil storage tank 4 can be recycled without frequent replenishment of the lubricating oil.

[0098] In this application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0099] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0100] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A variable speed walking device, characterized in that: include: A housing, wherein a drive shaft and an output shaft are rotatably connected in the housing, and the drive shaft and the output shaft are driven by a gear set; An oil storage tank is arranged at the bottom of the housing, and the oil storage tank is connected with the interior of the housing through an oil leakage port; A spiral blade is disposed in the oil storage tank, and the spiral blade is driven to transfer the content in the oil storage tank to one end of the oil storage tank; A filtering mechanism is arranged on one side of the oil storage tank; A box body is arranged at the top end of the shell body, the box body is used to store the oil body filtered by the filtering mechanism, and the box body can be connected with the shell body so that the oil body in the box body can enter the shell body; Wherein, the filtering mechanism comprises: A filter box, wherein a first oil pump is disposed between the oil storage tank and the filter mechanism, and the first oil pump can transfer the content at one end of the oil storage tank to the filter box; A filter housing, wherein the filter box is detachably disposed in the filter housing, and valves are disposed on both sides of the filter housing; A flow meter is arranged on a side of the filter housing close to the box body; An oil drain valve is connected and arranged at the bottom of the filter housing; A connecting pipe, one end of which is detachably arranged on the top of the filter box, and the other end of the connecting pipe is connected to an end of the filter housing close to the box body; A fixed electric sheet, fixedly arranged in the connecting pipe at one end away from the filter box; A movable electric sheet is slidably arranged in the connecting pipe via a return spring; Wherein, an alarm device is disposed on one side of the shell, and the alarm device responds to the conduction between the fixed electrical sheet and the movable electrical sheet.

2. The variable speed walking device according to claim 1, characterized in that: Also includes: A flow diversion mechanism, the flow diversion mechanism is arranged between the filtering mechanism and the box body; Wherein, the diversion mechanism comprises: A flow divider, arranged at the output end of the filtering mechanism, for dividing the filtered oil; A plurality of shunt pipes are provided, and the plurality of shunt pipes are all connected and arranged on one side of the shunt device, and the other end of the shunt pipe is connected to the box body.

3. The variable speed walking device according to claim 1, characterized in that: Also includes: An oil spraying mechanism is arranged on the top of the shell, and the oil spraying mechanism is connected with the box body through a second oil pump; Wherein, the oil pouring mechanism comprises: An oil spray housing is connected and arranged on the top of the box body; A diverter groove is arranged on a side of the oil spray housing close to the second oil pump; An oil pouring pipe is arranged on one side of the diversion groove, and an oil pouring port is opened on one side of the oil pouring pipe.

4. The variable speed walking device according to claim 3, characterized in that: The oil pouring port is opened at the top of the oil pouring pipe; The top end of the oil pouring pipe is provided with an oil pouring cover body, and a side of the oil pouring cover body facing the oil pouring pipe is provided with an arc groove corresponding to the oil pouring port.

5. The variable speed walking device according to claim 3, characterized in that: The second oil pump transmission is arranged on one side of the driving shaft.

6. The speed-changing walking device according to claim 2, characterized in that: The bottom of the shell is located on both sides of the oil storage tank and is provided with two cooling chambers, and the diverter pipe is arranged to pass through the two cooling chambers in sequence.

7. An agricultural machine, characterized in that: It comprises the variable speed walking device described in any one of claims 1-6.

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