A quick assembly and disassembly turntable structure and fruit and vegetable processing equipment
By adopting a three-stage mating connection method, the problems of inconvenient assembly and disassembly and unstable rotation of the turntable are solved in the prior art, and the rapid assembly and disassembly and stable rotation of the turntable are achieved.
Patent Information
- Application Number
- CN202420788753.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The assembly and disassembly of the rotor and shaft of the existing food processing equipment is difficult to control the tightness of the fitting, resulting in the rotor shaking on the shaft, poor rotation stability or inconvenient installation and disassembly.
A quick assembly and disassembly rotary disk structure adopts a three-stage mating connection method, including an upper mating section, a lower mating section and a middle mating section. There is a gap between the middle mating section and the middle section shaft. The upper mating section and the lower mating section are equipped with a circumferential positioning structure to ensure stable rotation of the rotary disk.
It realizes rapid assembly and disassembly and stable rotation of the turntable, reduces the difficulty of parts manufacturing and improves the convenience of operation.
Smart Images
Figure CN222708020U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of fruit and vegetable processing equipment, and specifically relates to a quick assembly and disassembly turntable structure and fruit and vegetable processing equipment. Background Art
[0002] In the catering industry and household scenarios, the assembly and disassembly settings of the turntable and shaft of existing food processing equipment are mainly as follows: the center sleeve of the turntable and the drive shaft are matched in a one-piece manner, the inner wall surface of the center sleeve is a regular cylindrical surface, and the outer wall surface of the drive shaft is also a regular cylindrical surface. This kind of matching method makes it difficult to control the tightness of the fit, and it is easy to be too loose or too tight. When it is too loose, the turntable shakes on the shaft, the turntable rotates with poor stability, and the noise is loud. When it is too tight, the user has to use force to plug and unplug the turntable when installing and disassembling it, which is very inconvenient. Utility Model Content
[0003] In view of the above analysis, the embodiments of the present utility model aim to provide a quick assembly and disassembly turntable structure and fruit and vegetable processing equipment to solve one or more of the above problems existing in the prior art.
[0004] The purpose of the utility model is achieved in this way:
[0005] On the one hand, a quick assembly and disassembly turntable structure is provided, comprising:
[0006] A turntable, wherein a central sleeve is protruding upward from the center of the turntable, and the central sleeve comprises an upper matching section located at the top, a lower matching section located at the bottom, and a middle matching section located in the middle;
[0007] A driving shaft, the driving shaft comprising an upper shaft corresponding to the upper mating section, a lower shaft corresponding to the lower mating section, and a middle shaft corresponding to the middle mating section;
[0008] Wherein, there is a gap between at least the middle mating section and the middle section shaft;
[0009] At least one of the upper mating section and the lower mating section is provided with a circumferential positioning structure so as to drive the turntable to rotate when the drive shaft rotates.
[0010] Furthermore, the axial lower end of the central sleeve is opened; the axial upper end of the central sleeve is opened or has a blind hole.
[0011] Furthermore, the circumferential positioning structure is a combination of one or more structures selected from the group consisting of a keyway, a regular polygon, and a circumferential flat belt.
[0012] Furthermore, the upper matching section is cylindrical, and two flat positions are arranged on the side circumferential surface of the cylinder, and the two flat positions cooperate with the two flat positions of the central sleeve to transmit rotational power.
[0013] Furthermore, the average diameter of the upper fitting section is Da, the average diameter of the lower fitting section is Db, the average diameter of the middle fitting section is Dc, and Da≤Dc<Db.
[0014] Furthermore, the clearance between the upper fitting section and the upper shaft is Sa, the clearance between the lower fitting section and the lower shaft is Sb, and the clearance between the middle fitting section and the middle shaft is Sc, then Sa <Sc,Sb<Sc。
[0015] Furthermore, an inclined and smooth transition is provided between the inner surfaces of the upper mating section and the middle mating section, and a step transition is provided between the inner surfaces of the middle mating section and the lower mating section; correspondingly, an inclined and smooth transition is provided between the outer surfaces of the upper shaft and the middle shaft, and a step transition is provided between the outer surfaces of the middle shaft and the lower shaft.
[0016] Furthermore, the connection between the lower shaft and the middle shaft has an annular step end face, and the connection between the middle mating section and the inner wall surface of the lower mating section has a step mating surface; when the drive shaft is installed in the center sleeve, the upper shaft and the top end sleeve of the upper mating section have a first contact point, the middle shaft and the inner wall of the middle mating section do not contact, the lower shaft and the bottom end sleeve of the lower mating section have a second contact point, and the annular step end face of the lower shaft and the step mating surface of the inner wall surface of the center sleeve have a third contact point.
[0017] Further, the gap Sc is located between the first contact point and the third contact point, and the gap Sa is located above the gap Sb.
[0018] On the other hand, a fruit and vegetable processing device is also provided, comprising the quick assembly and disassembly turntable structure in the above technical solution.
[0019] Compared with the prior art, the utility model provides a quick assembly and disassembly turntable structure and fruit and vegetable processing equipment. The center sleeve of the turntable and the shaft adopt a three-section matching connection method. While reducing the matching area, the matching length is lengthened, the difficulty of parts manufacturing is reduced, and the stability of the turntable rotation is ensured. Since the matching clearance of the middle matching section is large, the friction is small during assembly and disassembly, which is very convenient to operate and convenient for users to assemble and disassemble quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0021] Figure 1 A schematic diagram of the structure of the quick assembly and disassembly turntable provided by the utility model Figure 1 ;
[0022] Figure 2 A partial cross-sectional view of the quick assembly and disassembly turntable structure provided by the utility model;
[0023] Figure 3 A schematic diagram of the structure of the drive shaft provided by the utility model;
[0024] Figure 4 A schematic diagram of the structure of the center sleeve on the disk body provided by the utility model;
[0025] Figure 5 A schematic diagram of the structure of the quick assembly and disassembly turntable provided by the utility model Figure 2 ;
[0026] Figure 6 A schematic diagram of the structure of the cutter disc provided by the utility model being installed in the mounting groove on the disc body;
[0027] Figure 7 A schematic diagram of the cross-sectional structure of a blade provided by the utility model;
[0028] Figure 8 A schematic diagram of the cross-sectional structure of a cutter head using the first type of locking element provided by the utility model;
[0029] Fig. 9 A schematic diagram of the cross-sectional structure of a cutter head using the second locking element provided by the utility model;
[0030] Fig.10 A schematic diagram of the cross-sectional structure of a cutter head using a third type of locking element provided by the utility model;
[0031] Fig.11 A structural schematic diagram of the fruit and vegetable processing equipment provided by the utility model;
[0032] Fig.12 A cross-sectional view of the fruit peel box provided by the utility model;
[0033] Fig.13 The structure diagram of the material box provided by the utility model Figure 1 ;
[0034] Fig.14 The structure diagram of the material box provided by the utility model Figure 2 ;
[0035] Fig.15 The structure diagram of the material box provided by the utility model Figure 3 .
[0036] Reference numerals:
[0037] 100-turntable; 101-disk body; 1011-center sleeve; 1011A-upper matching section; 1011B-lower matching section; 1011C-middle matching section; 1012-mounting slot; 102-blade; 1021-mounting through hole; 103-locking piece; 1031-rivet; 1032-screw; 1033-pressure rivet; 1033a-flattened pressure rivet;
[0038] 200-fruit peel box; 201-box body; 202-spoiler;
[0039] 300-feeding barrel; 301-barrel body; 302-feeding port; 303-automatic feeding mechanism; 304-spoiler ribs; 305-fruit and vegetable outlet;
[0040] 400-main engine; 401-driving shaft; 401a-upper shaft; 401b-lower shaft; 401c-middle shaft; 401d-first contact point; 401e-second contact point; 401f-third contact point; 401g-flat position; 401h-annular step end face. DETAILED DESCRIPTION
[0041] 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 in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0042] In the accompanying drawings, the size and relative size of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed in a different order than described. For example, two successively described processes may be performed substantially simultaneously or in an order opposite to the order described. In addition, the same reference numerals represent the same components.
[0043] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values and / or the values provided that will be recognized by those of ordinary skill in the art.
[0044] Example 1
[0045] A specific embodiment of the utility model discloses a quick assembly and disassembly turntable structure, and the turntable and the driving shaft 401 of the host 400 can be quickly assembled.
[0046] like Figures 1 to 4 As shown, the quick assembly and disassembly turntable structure includes a turntable 100, and the turntable 100 has a turntable body 101. A center sleeve 1011 is protruded upward at the center of the turntable 100, and the axial lower end of the center sleeve 1011 is opened; the axial upper end of the center sleeve 1011 is opened or blind-hole-set, and the center sleeve 1011 is divided into three sections to cooperate with the drive shaft 401. Among the three matching sections of the center sleeve 1011 and the drive shaft 401, the upper one is the upper matching section 1011A, and the lower one is the lower matching section 1011A. 1B, the middle matching section 1011C is located in the middle; the driving shaft 401 includes an upper section shaft 401a corresponding to the upper matching section 1011A, a lower section shaft 401b corresponding to the lower matching section 1011B, and a middle section shaft 401c corresponding to the middle matching section 1011C; at least there is a gap between the middle matching section 1011C and the middle section shaft 401c; at least one of the upper matching section 1011A and the lower matching section 1011B is provided with a circumferential positioning structure, so that the rotating disk 100 is driven to rotate when the driving shaft 401 rotates. When the central shaft sleeve 1011 of the rotating disk 100 is sleeved on the driving shaft 401, the rotating disk can stably follow the rotation of the driving shaft 401 by relying on the matching of the upper matching section 1011A and the lower matching section 1011B.
[0047] For example, a circumferential positioning structure is provided on the upper mating section 1011A. Optionally, the circumferential positioning structure can be a combination of one or more structures with a circumferential drive structure such as a keyway, a regular polygon, a circumferential belt flat position, etc. Exemplarily, the upper mating section 1011A adopts a structure of two circumferential belt flat positions to transmit rotational power, that is, the upper mating section 1011A of the drive shaft 401 is set to a cylindrical shape, and two flat positions 401g are set on the cylindrical shape. The two flat positions 401g cooperate with the two flat positions of the center sleeve 1011 to transmit rotational power.
[0048] The average diameter of the drive shaft 401 in the upper mating section 1011A is Da, the average diameter of the drive shaft 401 in the lower mating section 1011B is Db, and the average diameter of the drive shaft 401 in the middle mating section 1011C is Dc, then Da≤Dc<Db. The average diameters Da, Db, and Dc refer to the average values of radial widths in a broad sense, and are not limited to the diameters of a circle in a narrow sense.
[0049] The clearance between the upper matching section 1011A and the upper shaft 401a is Sa, the clearance between the lower matching section 1011B and the lower shaft 401b is Sb, and the clearance between the middle matching section 1011C and the middle shaft 401c is Sc. Then Sa <Sc,Sb<Sc。
[0050] The clearances Sa, Sb, and Sc can be positive or negative. When they are positive, it means there is a clearance in the fit, and when they are negative, it means there is an interference in the fit.
[0051] The transition between the three matching sections of the inner surface of the central sleeve 1011 can be a step transition or a smooth transition. In accordance with the inner surface structure of the central sleeve 1011, the transition between the three matching sections of the outer surface of the drive shaft 401 can be a step transition or a smooth transition.
[0052] Exemplarily, the inner surface of the center sleeve 1011 has an inclined smooth transition between the inner surfaces of the upper mating section 1011A and the middle mating section 1011C, and a step transition is used between the inner surfaces of the middle mating section 1011C and the lower mating section 1011B; the outer surface of the drive shaft 401 has a smooth transition of the same shape between the outer surfaces of the upper shaft 401a and the middle shaft 401c, and a step transition is used between the outer surfaces of the middle shaft 401c and the lower shaft 401b.
[0053] Reference Figure 3The outer surfaces of the upper shaft 401a and the middle shaft 401c are coplanar and smoothly transitioned; the connection between the lower shaft 401b and the middle shaft 401c has an annular stepped end surface 401h, and the connection between the inner wall surface of the middle matching section 1011C and the lower matching section 1011B has a stepped matching surface. When the drive shaft 401 is installed in the central sleeve 1011, the upper shaft 401a and the top sleeve of the upper matching section 1011A have a first contact point 401d, and the middle section The shaft 401c does not contact the inner wall of the middle mating section 1011C, the lower shaft 401b has a second contact point 401e with the bottom sleeve of the lower mating section 1011B, and the annular step end surface 401h of the lower shaft 401b has a third contact point 401f with the step mating surface of the inner wall of the center sleeve 1011; the gap Sc is located between the first contact point 401d and the third contact point 401f, and the gap Sa is located above the gap Sb.
[0054] In this embodiment, the turntable 100 may be a knife disk with blades disposed thereon, or may be a turntable in other forms, such as a turntable with a stirring function.
[0055] like Figures 5 to 10 As shown, the cutter disc includes a disc body 101 , a blade 102 and a locking piece 103 . A mounting groove 1012 is provided on the disc body 101 . The blade 102 is fixed in the mounting groove 1012 by the locking piece 103 . The cutting edge of the blade 102 is higher than the upper surface of the disc body 101 .
[0056] In this embodiment, there is at least one blade 102, the number of the mounting slots 1012 on the disc body 101 is the same as the number of the blades 102, and the blades 102 can be arranged on the disc body 101 at a geometrically evenly divided angle, or at a geometrically non-evenly divided angle and an asymmetrically offset placement. The arrangement of the blades 102 allows the fruit to be peeled to be thrown upwardly and collide with the blades 102 when the disc body 101 rotates, so that the peel of the fruit to be peeled is cut by the blades 102.
[0057] In this embodiment, the shape of the mounting groove 1012 on the disk body 101 is adapted to the shape of the blade 102, that is, the blade 102 follows the contour of the mounting groove 1012 of the disk body 101. When the blade 102 is installed in the mounting groove 1012, the position of the blade 102 is accurately positioned.
[0058] In this embodiment, a mounting through hole 1021 is provided on the blade 102 , and the locking member 103 passes through the mounting through hole 1021 to fix the blade 102 on the disk body 101 .
[0059] In this embodiment, the locking element 103 includes but is not limited to the following three structures:
[0060] The first locking member 103 structure is as follows: Figure 8As shown, the locking member 103 is a rivet 1031, which has a head, a body and a tail, and the blade 102 is fixed to the disk body 101 by riveting with the rivet 1031. Specifically, the bottom surface of the mounting groove 1012 on the disk body 101 is provided with a rivet hole that matches the size of the rivet 1031. After the blade 102 is installed in the mounting groove 1012, the mounting through hole 1021 on the blade 102 is aligned with the rivet hole, and the blade 102 is fixed in the mounting groove 1012 by the rivet 1031. The top openings of the mounting through hole 1021 and the rivet hole are outwardly expanded, which can also be understood that the mounting through hole 1021 on the blade 102 is a first necking hole, the upper part of the rivet hole is a second diameter-reducing hole, and the lower part of the rivet hole is a regular cylindrical hole, and the aperture of the cylindrical hole is equal to the aperture diameter of the small hole of the diameter-reducing hole. When the blade 102 is installed in the mounting groove 1012, the hole wall of the first necking hole is coplanar with the hole wall of the second diameter-reducing hole, that is, the first necking hole is aligned with the second diameter-reducing hole to form a larger combined necking hole. The shape of the lower end face of the head of the rivet 1031 is adapted to the shape of the hole wall of the combined diameter-reducing hole, and the head contour is contoured with the hole mouth contour of the blade 102 installation through hole 1021. After the rivet 1031 rivets the blade 102, the head of the rivet 1031 is located in the combined diameter-reducing hole, the top of the head of the rivet 1031 is flush with the top surface of the blade 102 or is located below the top surface of the blade 102, and the lower end face of the head is in surface contact with the hole wall of the combined diameter-reducing hole, which can provide sufficient support force and area, so that the rivet 1031 can fully compact the hole wall surface of the combined diameter-reducing hole. The tail is the reinforcement part of the rivet 1031. When the compression force acts on the rivet 1031, the air between the head and the tail is squeezed out, and the tail expands and turns over to form a close contact with the lower surface of the disk body 101, thereby achieving a riveted connection of the locking blade 102.
[0061] The second locking member 103 structure is as follows: Fig. 9As shown, the locking member 103 is a screw 1032, and the screw 1032 has a nail cap and a nail rod; the bottom surface of the mounting groove 1012 on the disk body 101 is provided with a threaded mounting hole. After the blade 102 is installed in the mounting groove 1012, the blade 102 is fixed in the mounting groove 1012 by passing the screw 1032 through the mounting through hole 1021 of the blade 102. The difference between the threaded mounting hole and the above-mentioned rivet hole is that the lower part of the threaded mounting hole is a threaded hole, which is compatible with the size of the screw 1032. The mounting through hole 1021 on the blade 102 is a first necking hole, the upper part of the threaded mounting hole is a second diameter-reducing hole, and the lower part of the threaded mounting hole is a regular threaded hole. When the blade 102 is installed in the mounting groove 1012, the hole wall of the first necking hole is coplanar with the hole wall of the second diameter-reducing hole, that is, the first necking hole and the second diameter-reducing hole are aligned to form a larger combined necking hole. The shape of the lower end face of the nail cap is adapted to the shape of the hole wall of the combined reduced diameter hole, and the outline of the nail cap is contoured to the hole mouth outline of the blade 102 installation through hole 1021. When the screw 1032 fixes the blade 102 on the disk body 101, the nail cap of the screw 1032 is located in the combined reduced diameter hole, the top of the nail cap is flush with the top surface of the blade 102 or is located below the top surface of the blade 102, and the lower end face of the nail cap is in surface contact with the hole wall of the combined reduced diameter hole, which can provide sufficient support force and area, so that the nail cap can fully compact the hole wall surface of the combined reduced diameter hole, and lock and correct the position of the blade 102 through the pressing force of the screw 1032 and the outer shape structure of the nail cap. In the solution of fixing the blade 102 with the screw 1032, when the blade 102 is defective, it can be replaced at any time, and the disassembly and assembly are convenient and fast, saving the production / use cost.
[0062] The third locking member 103 structure is as follows: Fig.10 As shown, the locking member 103 is molded integrally with the disk body 101. The locking member 103 is made of a plastically deformable material. Through a riveting or hot riveting process, the head of the locking member 103 is flanged to lock the blade 102. Specifically, the locking member 103 is a riveting member 1033, which is protruding from the bottom surface of the mounting groove 1012 on the disk body 101. The riveting member 1033 is a cylindrical structure, and the number and position of the cylindrical structure correspond to the number and position of the mounting through holes 1021 on the blade 102. The riveting member 1033 is integrally formed on the bottom surface of the mounting groove 1012. When the blade 102 is installed on the installation groove 1012, the rivet 1033 passes through the installation through hole 1021 of the blade 102 from bottom to top, and there is a gap between the top of the rivet 1033 and the first reduced diameter hole wall of the installation through hole 1021. Under external pressure or external pressure combined with heating conditions, the top of the rivet is plastically deformed and squeezed into the gap between the rivet and the first reduced diameter hole wall, thereby achieving a reliable connection between the blade 102 and the disk body 101. Fig.10 , the flattened rivet 1033a and the rivet 1033 before being flattened.
[0063] This embodiment also discloses a fruit and vegetable processing device, including the above-mentioned knife disc and a main machine 400, a peel box 200 and a material discharge barrel 300. Figures 11 to 15 As shown, the peel box 200 can be detachably mounted on the main unit 400, and the discharge barrel 300 can be detachably mounted on the peel box 200; the fruits and vegetables added into the discharge barrel 300 enter the peel box 200 under the action of the automatic discharge mechanism, and are peeled in the peel box 200.
[0064] In one optional embodiment, the material discharge barrel 300 includes a barrel body 301, the top of the barrel body 301 is provided with an upward opening, the bottom of the barrel body 301 is provided with a material discharge port 302, an automatic material discharge mechanism 303 is provided in the barrel body 301, and a spoiler rib 304 is fixedly provided below the bottom of the barrel body 301, and the inner wall surface of the spoiler rib 304 forms a disturbance space, and the disturbance space constitutes a processing space for fruits and vegetables entering the disturbance space from the material discharge port 302. A fruit and vegetable outlet 305 is provided on one side of the spoiler rib 304. After the fruits and vegetables are processed in the disturbance space of the spoiler rib 304, they are discharged outward from the fruit and vegetable outlet 305.
[0065] In one of the optional embodiments, the fruit peel box 200 includes a box body 201, in which a knife disc and a spoiler ring 202 are arranged; the knife disc is rotatably arranged in the box body 201, and the spoiler ring 202 is arranged above the knife disc, and a processing space for fruits and vegetables is formed between the inner side surface of the spoiler ring 202 and the top surface of the knife disc.
[0066] Compared with the prior art, the quick assembly and disassembly turntable structure and the fruit and vegetable processing equipment provided in this embodiment have at least one of the following beneficial effects:
[0067] 3. The center sleeve and shaft of the turntable adopt a three-section matching connection method. While reducing the matching area, the matching length is lengthened, the difficulty of parts manufacturing is reduced, and the stability of the turntable rotation is ensured. Due to the large matching clearance of the middle matching section, the friction is small during assembly and disassembly, which is very convenient to operate and convenient for users to assemble and disassemble quickly.
[0068] 2. The blade is locked by a locking mechanism, so you can choose existing blades on the market, which can not only reduce the cost of the cutter head, but also reduce the production scrap rate, reduce customer use costs, and save energy and protect the environment.
[0069] 3. By fixing the spoiler rib at the bottom of the barrel, the user only needs to install and disassemble one part during installation, use, and cleaning, which is very convenient and also eliminates the risk of losing or missing the spoiler rib.
[0070] 4. By setting the spoiler ring above the knife disc, the fruits and vegetables can contact the blade regardless of whether there are raised positions in the spoiler ring, which greatly improves the efficiency of fruit and vegetable processing, and the fruit and vegetable skin is cut evenly, and the effect is significantly improved.
[0071] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A quick assembly and disassembly turntable structure, characterized in that: include: A turntable, wherein a central sleeve is protruding upward from the center of the turntable, and the central sleeve has an upper matching section located at the top, a lower matching section located at the bottom, and a middle matching section located in the middle; A driving shaft, the driving shaft comprising an upper shaft section corresponding to the upper mating section, a lower shaft section corresponding to the lower mating section, and a middle shaft section corresponding to the middle mating section; Wherein, there is a gap between at least the middle matching section and the middle section shaft; At least one of the upper mating section and the lower mating section is provided with a circumferential positioning structure so that the rotating disk is driven to rotate when the driving shaft rotates.
2. The quick assembly and disassembly turntable structure according to claim 1, characterized in that: The axial lower end of the central sleeve is open; The axial upper end of the central sleeve is provided with an opening or a blind hole.
3. The quick assembly and disassembly turntable structure according to claim 1, characterized in that: The circumferential positioning structure is a combination of one or more structures including a keyway, a regular polygon, and a circumferential flat position.
4. The quick assembly and disassembly turntable structure according to claim 3, characterized in that: The upper matching section is cylindrical, and two flat positions are arranged on the side circumferential surface of the cylinder. The two flat positions match with the two flat positions of the central sleeve to transmit rotational power.
5. The quick assembly and disassembly turntable structure according to claim 1, characterized in that: The average diameter of the upper fitting section is Da, the average diameter of the lower fitting section is Db, and the average diameter of the middle fitting section is Dc, Da≤Dc<Db.
6. The quick assembly and disassembly turntable structure according to claim 1, characterized in that: The clearance between the upper fitting section and the upper shaft is Sa, the clearance between the lower fitting section and the lower shaft is Sb, and the clearance between the middle fitting section and the middle shaft is Sc. Then Sa <Sc,Sb<Sc。 7. The quick assembly and disassembly turntable structure according to claim 1, characterized in that: The inner surfaces of the upper mating section and the middle mating section have an inclined and smooth transition, and the inner surfaces of the middle mating section and the lower mating section have a stepped transition; Correspondingly, there is an inclined and smooth transition between the outer surfaces of the upper shaft and the middle shaft, and a stepped transition between the outer surfaces of the middle shaft and the lower shaft.
8. The quick assembly and disassembly turntable structure according to claim 7, characterized in that: The connection between the lower shaft and the middle shaft has an annular stepped end surface, and the connection between the middle matching section and the inner wall surface of the lower matching section has a stepped matching surface; When the drive shaft is installed in the center sleeve, the upper shaft has a first contact point with the top sleeve of the upper mating section, the middle shaft does not contact the inner wall of the middle mating section, the lower shaft has a second contact point with the bottom sleeve of the lower mating section, and the annular step end face of the lower shaft has a third contact point with the step mating surface of the inner wall of the center sleeve.
9. The quick assembly and disassembly turntable structure according to claim 8, characterized in that: The gap Sc is located between the first contact point and the third contact point, and the gap Sa is located above the gap Sb.
10. A fruit and vegetable processing equipment, characterized in that: It comprises the quick assembly and disassembly turntable structure as claimed in any one of claims 1 to 9.