Transmission device for kitchen machine

Abstract

The present invention discloses a transmission device for a food processor, comprising a housing, a cover and a transmission module arranged in the transmission cavity, the upper portion of the housing is open and forms a transmission cavity, the transmission module is constrained below the upper boundary of the transmission cavity, and the transmission cavity is filled with grease; the transmission module comprises: a power input assembly, an intermediate transmission assembly and a power output assembly, the power output assembly is engaged with the power output assembly through the intermediate transmission assembly, the power input assembly is connected to an input shaft and a transmission shaft on one side of the housing, the power output assembly is connected to a first output shaft on the other side of the housing, and the intermediate transmission assembly is connected to a second output shaft in the middle of the housing, so that the relative transmission units can drive the grease to flow toward the relative receptacles.

Description

Technical Field

[0001] The present invention relates to the technical field of food processor equipment, and in particular to a transmission device for a food processor. Background Art

[0002] At present, with the increasing replacement of household appliances, food processors have been widely popularized in household appliances. Usually, they have multiple stirring shafts, which are mainly used for stirring noodles, beating eggs, and mincing meat. By replacing the accessory connectors, they can also be used for slicing, shredding, and juicing. Existing food processors usually adopt a horizontally placed drive motor, a gear assembly connected to the drive motor, and a shell assembly covering the drive motor and the gear assembly. The gear assembly can be connected to at least one output shaft to meet different cooking needs. However, since the gear assembly and the drive motor are arranged in the cavity of the same shell assembly, this type of food processor has large internal noise and vibration, and the lubricating grease between the gear meshing parts is continuously consumed during daily use, causing wear of the gear meshing parts, thereby amplifying the internal noise and wear, and affecting the service life of the gear assembly.

[0003] Another food processor in the prior art has a Chinese invention patent with publication number "CN212643442U", entitled "A gear box and a kitchen appliance using the same". The gear assembly is built into the gear box, a plurality of gear grooves are provided in the gear box, and liquid oil is filled in the gear box to achieve the effect of long-term immersion of the worm gear assembly that provides input torque in the liquid oil, thereby improving the service life of the worm gear assembly.

[0004] However, in essence, it is provided with a worm gear accommodating groove, a bevel gear accommodating groove, and a reflux groove. The worm gear accommodating groove and the reflux groove are connected, and the upper boundary of the bevel gear accommodating groove is flush with the gear box body. The gear parts in the bevel gear accommodating groove cannot well receive the liquid oil flowing between the worm gear accommodating groove and the reflux groove. No reflux can be formed between the bevel gear accommodating groove and the worm gear accommodating groove, and the liquid oil is easily lost in the bevel gear accommodating groove.

[0005] In addition, the large gear with a larger diameter, which serves as an intermediate transmission, is mounted above the bevel gear receiving groove, that is, it is accommodated in the cover body. The large gear cannot receive the liquid oil in any receiving groove. Therefore, a food processor transmission device with better oil flow is needed. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a transmission device for a food processor.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a transmission device for a food processor, comprising a housing, a cover, and a transmission module disposed within a transmission cavity, wherein the housing has an upper opening and forms the transmission cavity, the transmission module is constrained below the upper boundary of the transmission cavity, and the transmission cavity is filled with grease;

[0008] The transmission module includes:

[0009] A power input assembly, an intermediate transmission assembly and a power output assembly, wherein the power output assembly is connected to the power output assembly through the intermediate transmission assembly, the power input assembly is connected to an input shaft and a transmission shaft on one side of the housing, the power output assembly is connected to a first output shaft on the other side of the housing, and the intermediate transmission assembly is connected to a second output shaft in the middle of the housing;

[0010] The input shaft, the first output shaft and the second output shaft are arranged in the same plane, the second output shaft is arranged vertically between the input shaft and the first output shaft, the input shaft and the first output shaft are arranged parallel to each other and guide the grease to the meshing position of the power output assembly and the intermediate transmission assembly, the transmission shaft is parallel to the second output shaft and guides the grease to the meshing position of the intermediate transmission assembly and the power input assembly, and the intermediate transmission assembly guides the grease to move between the power input assembly and the power output assembly by rotating.

[0011] Furthermore, the transmission module also includes a transmission unit for constituting a power input assembly, an intermediate transmission assembly and a power output assembly, and a receiving boundary adjacent to any transmission unit is provided in the transmission cavity.

[0012] Furthermore, it also includes an oil guide structure formed on the transmission unit, the oil guide structure includes a plurality of oil delivery blocks arranged in a ring in the middle of the transmission unit, the oil delivery blocks pass through the upper and lower ends of the transmission unit, and each of the oil delivery blocks is provided with at least one oil guide curved piece, the oil guide curved piece extends in a spiral shape and connects the upper and lower ends of the oil delivery block.

[0013] Furthermore, the transmission cavity is provided with a first groove for accommodating a power input assembly, a second groove for accommodating an intermediate transmission assembly, and a third groove for accommodating a power output assembly, and the first groove, the second groove and the third groove are arranged in communication.

[0014] Furthermore, the upper part of the first container groove and the second container groove define a first transmission area, the lower part of the first container groove and the upper part of the third container groove define a second transmission area, and the lower part of the third container groove defines a power output area. The power input component and the intermediate transmission component cooperate in the first transmission area, and the intermediate transmission component and the power output component cooperate in the second transmission area. The first output shaft and the second output shaft are arranged in the power output area.

[0015] Furthermore, the power input assembly includes a worm gear assembly and a first gear cooperating with the intermediate transmission assembly. The worm is connected to the input shaft, and the end face of the worm wheel faces the second groove to form a first grease output area. The first groove opens at the meshing point of the worm gear assembly and forms a second grease output area. The second grease output area is arranged toward the third groove, and the end face of the worm faces the third groove to form a third grease output area.

[0016] Furthermore, the power output assembly includes a second bevel gear arranged on the first output shaft, the second bevel gear is adjacent to the second gear, and exerts an upward force from the grease in the third tank.

[0017] Furthermore, an oil guide wheel is provided on the second output shaft, and the oil guide wheel is arranged at the bottom of the third tank. The oil guide wheel has a circumferential oil guide portion adjacent to the boundary of the third tank, and an axial oil guide portion facing the second tank. The projection of the circumferential oil guide portion with respect to the second output shaft at least partially overlaps with the power output assembly, and the projection of the axial oil guide portion with respect to the second output shaft is between the input shaft and the first output shaft.

[0018] Furthermore, the intermediate transmission assembly includes a second gear that cooperates with the power input assembly, and a table is extended from the bottom of the second container, and the table is at least supported below the outer edge of the second gear.

[0019] Furthermore, the projection of the second gear at least partially overlaps with the first receiving groove and the third receiving groove, and a plurality of oil holes are provided in the middle of the second gear.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] 1. By arranging the first output shaft, the input shaft, and the second output shaft in the same plane, and the first output shaft and the input shaft being arranged parallel to each other, the relative transmission units can drive the grease to flow toward the relative grooves;

[0022] 2. By defining a transmission cavity in the box, any component of the transmission module is arranged in the transmission cavity for transmission. The transmission cavity is sealed by closing the cover, and the transmission cavity is filled with grease to ensure that any part of the transmission module can be fully lubricated.

[0023] 3. By providing an independent receiving groove for each transmission component, the receiving edge of the receiving groove can be adjacent to the outer edge of the transmission component, further ensuring that the grease is in full contact with the transmission module, reducing the internal volume of the transmission cavity, reducing the amount of grease filling, and reducing costs. During operation, the grease can flow more easily between the transmission components;

[0024] 4. The first groove accommodates the power input assembly, the second groove accommodates the intermediate transmission assembly, and the third groove accommodates the power output assembly. The second groove is arranged on the upper part of the first groove, and the worm gear applies a force toward the second groove to the grease. The third groove is located below the second groove and the first groove, so that the grease in the second groove can be connected to the rest of the transmission cavity. In addition, the worm applies a force toward the third groove to the grease, and the bevel gear in the third groove applies an upward force to the grease, thereby realizing efficient flow of grease in the transmission cavity, so that in the transmission cavity of the same volume, less amount of grease needs to be filled and the same lubrication effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic cross-sectional view of the present invention;

[0026] Figure 2 An exploded schematic diagram of the transmission module and the housing of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the present invention after the cover is removed;

[0028] Figure 4 Schematic diagram of the internal structure of the transmission cavity of the present invention;

[0029] Figure 5 Schematic diagram of the first transmission area, the second transmission area and the power output area of ​​the present invention;

[0030] Figure 6 A top view of the transmission cavity of the present invention;

[0031] Figure 7 A schematic diagram of the positions of the oil hole and the transmission module on the second gear of the present invention;

[0032] Figure 8 Schematic diagram of the second grease delivery area and the third grease delivery area of ​​the present invention;

[0033] Figure 9 is a schematic diagram of the first grease delivery area of ​​the present invention;

[0034] Figure 10 It is a structural schematic diagram of the worm gear of the present invention;

[0035] Figure 11 This is an embodiment of the oil guide wheel in the transmission cavity of the present invention

[0036] Figure 12 This is an embodiment of the oil guide tanker of the present invention;

[0037] Figure 13 This is another embodiment of the oil guide wheel of the present invention in the transmission cavity;

[0038] Figure 14 Another embodiment of the oil guide tanker of the present invention;

[0039] Figure 15 is a cross-sectional view of another embodiment of the oil guide tanker of the present invention;

[0040] In the figure: 1. Box body; 2. Cover body;

[0041] 3. Transmission chamber; 3.1. First receiving slot; 3.2. Second receiving slot; 3.21. Table; 3.3. Third receiving slot; 3.31. Lifting slot;

[0042] 4. Power input assembly; 4.1. Input shaft; 4.2. Worm gear;

[0043] 4.3, worm gear; 4.31, oil delivery block; 4.32, oil guide vane;

[0044] 4.4, first gear; 4.5, transmission shaft;

[0045] 5. Power output assembly; 5.1. First output shaft; 5.2. Second bevel gear;

[0046] 6. Intermediate transmission assembly; 6.1. Second output shaft; 6.2. Second gear; 6.21. Oil hole; 6.3. First bevel gear;

[0047] 7. First transmission area; 8. Second transmission area;

[0048] 9. Power output area; 10. First grease output area; 11. Second grease output area; 12. Third grease output area;

[0049] 13. Oil guide wheel; 13.1. Oil guide vane; 13.2. Circumferential oil guide portion; 13.3. Axial oil guide portion; 13.4. Cut-off surface;

[0050] 13.5, upper blade group; 13.6, lower blade group;

[0051] 14. Oil guide ring; 14.1. Oil guide rib; 14.2. Oil passage space; 14.3. First arc-shaped guide section; 14.4. Rising section; 14.5. Second arc-shaped guide section; DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] It should be understood that although terms such as upper, middle, lower, top, end, etc. appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for ease of understanding, and are not used to define any direction or order limitation.

[0054] like Figure 1-10 As shown, a transmission device for a food processor includes a housing 1, a cover 2 and a transmission module arranged in a transmission cavity 3. The upper portion of the housing 1 is open and defines a transmission cavity 3 inside. Any transmission component of the transmission module is constrained below the upper boundary of the transmission cavity 3. The cover 2 closes the upper boundary of the transmission cavity 3. The transmission module is connected to an output shaft group and an input shaft 4.1 outside the housing 1. The input shaft 4.1 is connected to the transmission module, and the transmission module drives the output shaft group to rotate by transmitting torque.

[0055] Specifically, the transmission cavity 3 is filled with a lubricant, which can be grease or liquid oil. It should be noted that grease is a slow-flowing lipid at room temperature, and its fluidity is improved under the action of heat generated during the operation of the transmission module.

[0056] In this embodiment, in order to improve the contact rate between the transmission module and the grease, a containment boundary adjacent to any transmission component of the transmission module is provided in the transmission cavity 3, thereby reducing the gap between the transmission module and the transmission cavity 3. During the operation of the transmission module, the lubricant can flow between the containment boundary and the outer boundary of the transmission module, reducing the filling amount of the lubricant while ensuring sufficient contact between the lubricant and the transmission module.

[0057] As a further improvement to the internal space of the transmission chamber 3, a first groove 3.1 for accommodating the power input assembly 4, a second groove 3.2 for accommodating the intermediate transmission assembly 6, and a third groove 3.3 for accommodating the power output assembly 5 are provided in the transmission chamber 3. The first groove 3.1, the second groove 3.2 and the third groove 3.3 are arranged in a connected manner, so that the lubricant can flow between the grooves under the action of the above-mentioned transmission components, so that the lubricant contacts any transmission part.

[0058] Preferably, the first containing tank 3.1 is arranged on the right side of the box body 1, the second containing tank 3.2 is arranged above the first containing tank 3.1, and the third containing tank 3.3 is arranged on the left side of the box body 1 and is located in the middle of the second containing tank 3.2. The third containing tank 3.3 is connected to the second containing tank 3.2 up and down, and the third containing tank 3.3 is also connected to the first containing tank 3.1 on the right side.

[0059] Among them, the projection of the second receptacle 3.2 coincides with the first receptacle 3.1 and the third receptacle 3.3. The power input assembly 4 in the first receptacle 3.1 allows the grease to be transported to the second receptacle 3.2. The intermediate transmission assembly 6 in the second receptacle 3.2 allows the grease to fully pass through the second receptacle 3.2. At the same time, the grease in the second receptacle 3.2 is allowed to enter the third receptacle 3.3 under the drive of the intermediate transmission assembly 6. The power output assembly 5 in the third receptacle 3.3 is configured to rotate about a horizontal axis, thereby driving the grease in the third receptacle 3.3 to be transported upward to the first receptacle 3.1 and the second receptacle 3.2.

[0060] As a further explanation of the circulation of grease in the transmission chamber 3, the upper part of the first groove 3.1 and the second groove 3.2 define a first transmission area 7, the lower part of the first groove 3.1 and the upper part of the third groove 3.3 define a second transmission area 8, and the lower part of the third groove 3.3 defines a power output area 9. The power input component 4 cooperates with the intermediate transmission component 6 in the first transmission area 7, and the intermediate transmission component 6 cooperates with the power output component 5 in the second transmission area 8. The first output shaft 5.1 and the second output shaft 6.1 are arranged in the power output area 9. Through the above improvements, the grease can flow through the first transmission area 7, the second transmission area 8 and the power output area 9, and pass through the first groove 3.1, the second groove 3.2 and the third groove 3.3 to realize the reflux of the grease in the torque transmission direction.

[0061] Specifically, the transmission module includes:

[0062] A power input assembly 4, an intermediate transmission assembly 6 and a power output assembly 5, wherein the power output assembly 5 is connected to the power output assembly 5 through the intermediate transmission assembly 6, the power input assembly 4 is connected with an input shaft 4.1 on one side of the box body 1, and the power output assembly 5 is connected with a first output shaft 5.1 on the other side of the box body 1.

[0063] According to different cooking requirements of the food processor, the intermediate transmission assembly 6 is connected with a second output shaft 6.1 in the middle of the box body 1, and the second output shaft 6.1 is arranged perpendicular to the first output shaft 5.1.

[0064] The input shaft 4.1, the first output shaft 5.1, and the second output shaft 6.1 are arranged coplanarly. The input shaft 4.1 and the first output shaft 5.1 are arranged parallel to each other and face each other. The transmission unit thereon guides the grease from the first groove 3.1 toward the connecting area between the third groove 3.3 and the second groove 3.2, thereby passing through the meshing portion of the power output assembly 5 and the intermediate transmission assembly 6.

[0065] The second output shaft 6.1 is arranged vertically between the input shaft 4.1 and the first output shaft 5.1. The second output shaft 6.1 guides the grease in the second tank 3.2 to flow to the first tank 3.1 and the third tank 3.3 through the rotation of the transmission unit thereon, that is, to move between the power input assembly 4 and the power output assembly 5.

[0066] Preferably, the transmission unit of the intermediate transmission assembly 6 is arranged above the second output shaft 6.1 and adjacent to the upper boundary of the transmission chamber 3, so that the grease is driven downward in the upper part of the transmission chamber 3, i.e., in the second containing groove 3.2, and enters the first containing groove 3.1 and the second containing groove 3.2;

[0067] The transmission shaft 4.5 is parallel to the second output shaft 6.1 and is adjacent to one side of the input shaft 4.1. The transmission shaft 4.5 guides the grease in the first groove 3.1 axially upward to the second groove 3.2 through the transmission unit thereon, passes through the meshing portion of the intermediate transmission assembly 6 and the power input assembly 4, and at the same time, the transmission shaft 4.5 guides the grease in the first groove 3.1 radially outward to the third groove 3.3 through the transmission unit thereon.

[0068] like Figures 1 to 3 As shown, as a further implementation of the transmission module,

[0069] The power input assembly 4 includes a worm gear 4.2 and a worm gear 4.3 assembly, a first gear 4.4 that cooperates with the intermediate transmission assembly 6, and a transmission shaft 4.5. The worm gear 4.2 and worm gear 4.3 assembly includes the worm gear 4.2 and the worm gear 4.3. The worm gear 4.3 is connected to the input shaft 4.1. The worm gear 4.2 and the first gear 4.4 are coaxially connected to the transmission shaft 4.5. The input shaft 4.1 and the transmission shaft are both disposed in the first receiving groove 3.1. The input shaft 4.1 is arranged horizontally, and the transmission shaft 4.5 is arranged vertically.

[0070] The intermediate transmission assembly 6 includes a second gear 6.2 coaxially arranged on the second output shaft 6.1, and a first bevel gear 6.3 cooperating with the power output assembly 5. The second output shaft 6.1 is inserted into the third receiving groove 3.3 and is arranged vertically.

[0071] The power output assembly 5 includes a second bevel gear 5.2 coaxially arranged on the first output shaft 5.1. The second bevel gear 5.2 is transmission-connected to the first bevel gear 6.3. The first output shaft 5.1 is inserted into the third receiving groove 3.3 and is horizontally arranged.

[0072] The worm wheel 4.2, worm 4.3 assembly, the first gear 4.4, the second gear 6.2, the first bevel gear 6.3 and the second bevel gear 5.2 constitute a transmission unit.

[0073] The transmission unit further comprises an oil guide structure, comprising a plurality of oil supply blocks 4.31 arranged in a ring around the middle of the transmission unit. The oil supply blocks 4.31 extend through the upper and lower ends of the transmission unit. Each of the oil supply blocks 4.31 is provided with at least one oil guide curved piece 4.32, which extends in a spiral shape and connects the upper and lower ends of the oil supply block 4.31.

[0074] According to actual needs, the above-mentioned oil guide structure can be constructed in any transmission unit to improve the flow of grease in the transmission cavity 3.

[0075] The upper end surface of the worm wheel 4.2 is adjacent to the bottom of the second groove 3.2, the lower end surface of the worm wheel 4.2 is adjacent to the middle of the third groove 3.3, the bottom of the worm 4.3 is adjacent to the middle of the third groove 3.3, and the upper end surface of the first gear 4.4 is adjacent to the top of the second groove 3.2. The first gear 4.4 and the second gear 6.2 are meshed and driven in the first transmission area 7;

[0076] A table 3.21 extends from the bottom of the second receiving groove 3.2. The table 3.21 is at least received below the outer edge of the second gear 6.2. The middle portion of the second receiving groove 3.2 is connected to the third receiving groove 3.3, thereby connecting the second receiving groove 3.2 and the third receiving groove 3.3.

[0077] The first bevel gear 6.3 and the second bevel gear 5.2 are located in the third receiving groove 3.3, and the upper end surface of the first bevel gear 6.3 is adjacent to the bottom of the second receiving groove 3.2. The second bevel gear 5.2 cooperates with the first bevel gear 6.3 in the second transmission area 8. Figure 1 It can be seen that the outer boundary of the second bevel gear 5.2 is adjacent to the bottom of the second groove 3.2 and the third groove 3.3, so that the grease in the third groove 3.3 can flow to the first bevel gear 6.3 under the drive of the second bevel gear 5.2, and has a tendency to flow toward the second groove 3.2 and the first groove 3.1.

[0078] The grease circulation transmission chamber 3 will be further explained below in conjunction with the power input assembly 4 , the intermediate transmission assembly 6 and the power output assembly 5 .

[0079] from Figure 4 and Figure 5 As can be seen, the side of the first receiving groove 3.1 corresponding to the worm gear 4.2 is connected to the second receiving groove 3.2 up and down, and the end face of the first receiving groove 3.1 faces the second receiving groove 3.2. The grease in the first receiving groove 3.1 can be transported to the second receiving groove 3.2 under the rotation of the worm gear 4.2, thereby forming a first grease output area 10, and the first gear 4.4 is a small-module gear. The first gear 4.4 and the second gear 6.2 are specifically engaged in the first grease output area 10, thereby optimizing the grease flow between the first receiving groove 3.1 and the second receiving groove 3.2.

[0080] Furthermore, a rotational gap is reserved between the second gear 6.2 and the table 3.21, and at least part of the grease flows to the table 3.21 under the rotation of the second gear 6.2 and enters the third groove 3.3. The rotational gap is adjusted by the position of the retaining spring on the second output shaft 6.1.

[0081] like Figure 8 As shown, an opening is provided on one side of the first receiving groove 3.1 close to the table surface 3.21 and the third receiving groove 3.3, and the opening is connected to the third receiving groove 3.3, so that the peripheral end surface of the worm gear 4.2 can be exposed between the first receiving groove 3.1 and the third receiving groove through the opening, thereby forming a second grease output area 11, and the grease is output into the third receiving groove 3.3 under the rotation of the worm gear 4.2.

[0082] The end surface of the worm 4.3 faces the third receiving groove 3.3 to form a third grease output area 12. The grease in the first receiving groove 3.1 can flow into the third receiving groove 3.3 under the rotation of the worm 4.3.

[0083] As a further optimization of the third grease output area 12, the third grease output area 12 overlaps with the second transmission area 8, the worm 4.3 extends axially and is arranged close to the first bevel gear 6.3, and the circumferential end face of the worm wheel 4.2 at the opening is arranged close to the first bevel gear 6.3, so that the grease flows through the third grease output area 12 to the first bevel gear 6.3.

[0084] Furthermore, the input shaft 4.1 where the worm 4.3 is located and the first output shaft 5.1 where the second bevel gear 5.2 is located are located on the same vertical plane and are parallel to each other, so as to improve the guidance of grease flowing from the first container groove 3.1 to the second bevel gear 5.2.

[0085] like Figure 7 As shown, specifically, the projection of the second gear 6.2 at least partially overlaps with the first receiving groove 3.1 and the third receiving groove 3.3 to improve the efficiency of the second gear 6.2 and the grease, and a plurality of oil holes 6.21 are provided in the middle of the second gear 6.2 to form a fourth grease output area connected to the first receiving groove 3.1, so that the grease in the second receiving groove 3.2 can enter the third receiving groove 3.3 through the oil holes 6.21, and then flow to the meshing part of the first bevel gear 6.3 and the second bevel gear 5.2, or enter the first receiving groove 3.1 through the oil holes 6.21, and then flow to the meshing part of the worm wheel 4.2 and the worm 4.3 assembly.

[0086] Preferably, the oil passage hole 6.21 is adjacent to the center and the outer edge of the second gear 6.2 to further improve the oil passage efficiency and the degree of connectivity between the third containing groove 3.3 and the second containing groove 3.2.

[0087] It should be pointed out that the meshing portion of the first bevel gear 6.3 and the second bevel gear 5.2 is located within the projection of the oil hole 6.21, so that the grease in the third groove 3.3 can enter the second groove 3.2 through the oil hole 6.21 under the drive of the second bevel gear 5.2, or the high-quality grease in the second groove 3.2 can flow through the oil hole 6.21 to the meshing portion of the first bevel gear 6.3 and the second bevel gear 5.2.

[0088] like Figure 9 and Figure 10 As shown, as a further embodiment of the first grease output area 10, an oil guide structure is provided on the worm gear, and a plurality of oil delivery blocks 4.31 are provided in a ring around the middle of the worm gear 4.2. The first receiving groove 3.1 is also provided with an annular step portion corresponding to the worm gear 4.2, thereby supporting the worm gear 4.2 at a certain distance and providing space for the oil delivery block 4.31 to connect the bottom of the first receiving groove 3.1 and the second receiving groove 3.2. The grease in the first receiving groove 3.1 can enter the second receiving groove 3.2 through the oil delivery block 4.31 under the rotation of the worm gear 4.2.

[0089] Specifically, each oil delivery block 4.31 is provided with at least one oil guide curved piece 4.32, which extends in a spiral shape and connects the upper and lower ends of the oil delivery block 4.31, so that the oil guide curved piece 4.32 has an upward tendency to drive the oil to be discharged upward.

[0090] It should be noted that the first gear 4.4 is specifically arranged in the middle of the multiple oil supply blocks 4.31, so that the oil supply block 4.31 is directly opposite the meshing position of the first gear 4.4 and the second gear 6.2, so that the first gear 4.4 and the second gear 6.2 can fully receive grease.

[0091] Through the above improvements, the grease can fully flow through the first transmission area 7, the second transmission area 8 and the power output area 9, as well as the first container groove 3.1, the second container groove 3.2 and the third container groove 3.3, so that any component of the transmission module in the box body 1 can fully absorb the grease.

[0092] like Figure 11 and Figure 13 As shown, in other embodiments, the second output shaft 6.1 is further provided with an oil guide wheel 13, which is arranged at the bottom of the third receiving groove 3.3. The oil guide wheel 13 has a circumferential oil guide portion 13.2 adjacent to the boundary of the third receiving groove 3.3, and an axial oil guide portion 13.3 facing the second receiving groove 3.2. The circumferential oil guide portion 13.2 and the axial oil guide portion 13.3 are arranged on the oil guide wheel 13 from bottom to top in the axial direction, and the outer diameter of the circumferential oil guide portion 13.2 is axially contracted inwardly, thereby generating an upward oil guiding force at the bottom of the third receiving groove 3.3.

[0093] The projection of the circumferential oil guide portion 13.2 about the second output shaft 6.1 at least partially overlaps with the power output assembly 5, that is, the second bevel gear 5.2 in the power output assembly 5, so that the grease at the bottom of the third receptacle 3.3 passes through the second bevel gear 5.2 under the action of the circumferential oil guide portion 13.2, thereby improving the lifting effect of the second bevel gear 5.2 on the grease during rotation.

[0094] Among them, the projection of the axial oil guide part 13.3 with respect to the second output shaft 6.1 is between the input shaft 4.1 and the first output shaft 5.1. The grease at the bottom of the third groove 3.3 is first gathered axially toward the center under the action of the circumferential oil guide part 13.2, and is output upward to the second transmission area 8 and the second groove 3.2 under the action of the axial oil guide part 13.3, preferably passing through the meshing point of the second bevel gear 5.2 and the first bevel gear 6.3, passing through the second grease output area 11 and the third grease output area 12, thereby improving the grease flow effect in the third groove 3.3 and the entire transmission cavity 3.

[0095] like Figure 11 and Figure 12 As shown in FIG. 1 , as an embodiment of the oil guide wheel 13, the oil guide wheel 13 includes a plurality of oil guide vanes 13.1, which are spaced apart about the central axis of the second output shaft 6.1. A circumferential oil guide portion 13.2 and an axial oil guide portion 13.3 are formed on each oil guide vane 13.1. The circumferential oil guide portion 13.2 matches the tooth portion of the second bevel gear 5.2 and has a first spiral upward curve. The axial oil guide portion 13.3 is adjacent to the top of the circumferential oil guide portion 13.2 and has a spiral upward curve. The circumferential oil guide portion 13.2 has a radially inward contraction tendency in the oil guiding direction to provide a tendency for the grease in the third receiving groove 3.3 to be discharged upward along the center, and the axial oil guide portion 13.3 has a cut-off surface 13.4 formed in the oil guiding direction. The axial oil guide portion 13.3 has a radially outward expansion tendency with respect to the cut-off surface 13.4 to provide outward guidance for the grease in the third receiving groove 3.3, which is conducive to the flow of the grease toward the first receiving groove 3.1 and the second receiving groove 3.2.

[0096] like Figures 13 to 15 As shown, as a further improvement of the oil guide vessel 13,

[0097] The oil guide wheel 13 includes an upper blade assembly 13.5 and a lower blade assembly 13.6, and an oil guide ring 14 arranged above the upper blade assembly 13.5. The upper blade assembly 13.5 and the lower blade assembly 13.6 are arranged symmetrically about a plane perpendicular to the axis of the second output shaft 6.1. The upper blade assembly 13.5 and the lower blade assembly 13.6 each include a plurality of oil guide vanes 13.1, which are spaced apart about the central axis of the second output shaft 6.1. A circumferential oil guide portion 13.2 and an axial oil guide portion 13.3 are formed on each oil guide vane 13.1.

[0098] Among them, the circumferential oil guide portion 13.2 of the upper blade group 13.5 matches the tooth portion of the second bevel gear 5.2 and has a first spiral upward curve. The axial oil guide portion 13.3 is adjacent to the top of the circumferential oil guide portion 13.2 and has a second spiral upward curve. The circumferential oil guide portion 13.2 has a radially inward convergence trend in the oil guiding direction to provide a trend for the grease in the third receptacle 3.3 to be output upward along the center. The axial oil guide portion 13.3 is formed with a cut-off surface 13.4 in the oil guiding direction. The axial oil guide portion 13.3 has a radially outward expansion trend with respect to the cut-off surface 13.4 to provide outward guidance for the grease in the third receptacle 3.3, which is conducive to the flow of grease toward the first receptacle 3.1 and the second receptacle 3.2.

[0099] Among them, the bottom of the third containing groove 3.3 is also provided with a lifting groove 3.31 that matches the outer contour of the lower blade group 13.6. The lifting groove 3.31 has a tendency to expand axially upward, and the axial oil guide portion 13.3 of the oil guide vane 13.1 of the lower blade group 13.6 is located at the bottom of the lifting groove 3.31, and the circumferential oil guide portion 13.2 of the oil guide vane 13.1 of the lower blade group 13.6 is adjacent to the upper boundary of the lifting groove 3.31 and is arranged toward the tooth portion of the second bevel gear 5.2.

[0100] like Figure 15 As shown, specifically, the oil guide ring 14 is arranged in the middle of the third receiving groove 3.3 and is located below the first output shaft 5.1. Any axial cross-section of the oil guide ring 14 is in the shape of an upwardly converging slope, and a plurality of oil guide ribs 14.1 are arranged at intervals on the upper end surface of the oil guide ring 14. An oil flow space 14.2 is formed between adjacent oil guide ribs 14.1, so that the grease on the circumference of the oil guide ring 14 can be gathered upward through the oil flow space 14.2.

[0101] Furthermore, the oil flow space 14.2 and the oil guide rib 14.1 both have a first arc-shaped guide section 14.3, a rising section 14.4, and a second arc-shaped guide section 14.5 arranged in sequence about the axial direction. The curvature of the first arc-shaped guide section 14.3 is smaller than that of the second arc-shaped guide section 14.5, and the end of the second arc-shaped guide section 14.5 tends to the vertical plane, and the depth of the oil flow space 14.2 gradually decreases along its guiding direction to facilitate the output of grease at the end of the second arc-shaped guide section 14.5.

[0102] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A transmission device for a food processor, characterized in that: The invention comprises a box body (1), a cover body (2) and a transmission module arranged in a transmission cavity (3); the box body (1) has an upper opening and forms the transmission cavity (3); the transmission module is constrained below the upper boundary of the transmission cavity (3); and the transmission cavity (3) is filled with grease; The transmission module includes: A power input assembly (4), an intermediate transmission assembly (6) and a power output assembly (5), wherein the power input assembly (4) is connected to the power output assembly (5) via the intermediate transmission assembly (6), the power input assembly (4) is connected to an input shaft (4.1) and a transmission shaft (4.5) on one side of the housing (1), the power output assembly (5) is connected to a first output shaft (5.1) on the other side of the housing (1), and the intermediate transmission assembly (6) is connected to a second output shaft (6.1) in the middle of the housing (1); the transmission module further comprises a transmission unit for constituting the power input assembly (4), the intermediate transmission assembly (6) and the power output assembly (5); The transmission cavity (3) is provided with a first receiving groove (3.1) for accommodating a power input assembly (4), a second receiving groove (3.2) for accommodating an intermediate transmission assembly (6), and a third receiving groove (3.3) for accommodating a power output assembly (5), wherein the first receiving groove (3.1), the second receiving groove (3.2) and the third receiving groove (3.3) are arranged in communication with each other; The input shaft (4.1), the first output shaft (5.1) and the second output shaft (6.1) are arranged coplanarly, the second output shaft (6.1) is arranged vertically between the input shaft (4.1) and the first output shaft (5.1), the input shaft (4.1) and the first output shaft (5.1) are arranged parallel to each other, and the transmission unit on the input shaft (4.1) guides the grease to flow from the first groove (3.1) toward the connection area between the third groove (3.3) and the second groove (3.2), and guides the grease to the meshing portion of the power output assembly (5) and the intermediate transmission assembly (6). The transmission shaft (4.5) is parallel to the second output shaft (6.1), and the transmission shaft (4.5) guides the grease in the first container groove (3.1) axially upward to the second container groove (3.2) through the transmission unit thereon, and guides the grease to the meshing position between the intermediate transmission component (6) and the power input component (4); The intermediate transmission assembly (6) guides the grease to travel between the power input assembly (4) and the power output assembly (5) by rotating.

2. The transmission device for a food processor according to claim 1, characterized in that: The invention also includes an oil guide structure, which can be formed in any transmission unit. The oil guide structure includes a plurality of oil supply blocks (4.31) arranged in a ring in the middle of the transmission unit. The oil supply blocks (4.31) pass through the upper and lower ends of the transmission unit. Each of the oil supply blocks (4.31) is provided with at least one oil guide curved piece (4.32). The oil guide curved piece (4.32) extends in a spiral shape and connects the upper and lower ends of the oil supply block (4.31).

3. The transmission device for a food processor according to claim 1, characterized in that: The upper part of the first containing groove (3.1) and the second containing groove (3.2) define a first transmission area (7), the lower part of the first containing groove (3.1) and the upper part of the third containing groove (3.3) define a second transmission area (8), and the lower part of the third containing groove (3.3) defines a power output area (9). The power input component (4) and the intermediate transmission component (6) cooperate in the first transmission area (7), and the intermediate transmission component (6) and the power output component (5) cooperate in the second transmission area (8). The first output shaft (5.1) and the second output shaft (6.1) are arranged in the power output area (9).

4. The transmission device for a food processor according to claim 1, characterized in that: The power input assembly (4) comprises a worm wheel (4.2) and a worm (4.3) assembly, and a first gear (4.4) cooperating with an intermediate transmission assembly (6); the worm (4.3) is connected to an input shaft (4.1), and the end face of the worm wheel (4.2) faces the second receiving groove (3.2) to form a first grease output area (10); the first receiving groove (3.1) opens at the meshing position of the worm wheel (4.2) and the worm (4.3) assembly and forms a second grease output area (11); the second grease output area (11) is arranged toward a third receiving groove (3.3); and the end face of the worm (4.3) faces the third receiving groove (3.3) to form a third grease output area (12).

5. The transmission device for a food processor according to claim 1, characterized in that: The power output assembly (5) comprises a second bevel gear (5.2) arranged on the first output shaft (5.1), the second bevel gear (5.2) being adjacent to the second gear (6.2) and exerting an upward force from the grease in the third container groove (3.3).

6. The transmission device for a food processor according to claim 3, characterized in that: The second output shaft (6.1) is also provided with an oil guide wheel (13), the oil guide wheel (13) having a circumferential oil guide portion (13.2) adjacent to the boundary of the third receiving groove (3.3), and an axial oil guide portion (13.3) facing the second receiving groove (3.2), the projection of the circumferential oil guide portion (13.2) with respect to the second output shaft (6.1) at least partially overlapping with the power output assembly (5), and the projection of the axial oil guide portion (13.3) with respect to the second output shaft (6.1) being between the input shaft (4.1) and the first output shaft (5.1).

7. The transmission device for a food processor according to claim 1, characterized in that: The intermediate transmission assembly (6) comprises a second gear (6.2) matched with the power input assembly (4); a table (3.21) is provided at the bottom of the second receiving groove (3.2); the table (3.21) is at least supported below the outer edge of the second gear (6.2).

8. The transmission device for a food processor according to claim 7, characterized in that: The projection of the second gear (6.2) at least partially overlaps the first receiving groove (3.1) and the third receiving groove (3.3), and a plurality of oil holes (6.21) are provided in the middle of the second gear (6.2).

9. The transmission device for a food processor according to any one of claims 1 to 8, characterized in that: The transmission cavity (3) is provided with a receiving boundary adjacent to any transmission unit.

Images