Material anti-clustering facility of double-cone vacuum dryer

Abstract

The utility model belongs to the technical field of double-cone vacuum dryers, and particularly relates to a material anti-clustering facility of a double-cone vacuum dryer, which comprises a base, two supports and a vacuum drying tank, the two supports are fixedly connected to the top surface of the base, the vacuum drying tank is rotatably connected between the two supports, and the material anti-clustering facility further comprises a rotating rod and a rotating shaft, the rotating rod is rotationally connected to the inner wall of the vacuum drying tank, one end of the rotating rod penetrates through the inner wall of the vacuum drying tank and extends to the outside, and a plurality of crushing blades are fixedly connected to the peripheral side of the rotating rod; the first chain wheel is fixedly connected to the vacuum drying tank; the motor is fixedly connected to the top face of the base, an output shaft of the motor penetrates through one support and extends to the outside to be rotationally connected with one support, and a second chain wheel is fixedly connected to the output shaft of the motor. And the other part of materials may be excessively dry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to double -cone vacuum drying machine technical field especially relates to a double -cone vacuum drying machine's material anti -grouping facility. BACKGROUND

[0002] Double -cone vacuum drying machine is a kind of new drying equipment integrating mixing and drying, double -cone vacuum drying machine is double -cone rotary tank body, steam or hot water is passed into jacket in tank under vacuum state, heat is contacted with wet material through tank body inner wall, and the water vapor evaporated after wet material absorbs heat is extracted through vacuum exhaust pipe by vacuum pump, since tank body is in vacuum state, and the rotation of tank body makes material constantly up and down inside and outside overturn, so it speeds up the drying speed of material, improves drying efficiency, reaches the purpose of uniform drying.

[0003] For example, the Chinese patent with the announcement number CN219390317U discloses a double-cone rotary vacuum dryer, relating to the field of vacuum dryers, comprising a double-cone cylinder, a sleeve is fixedly arranged on one side of the double-cone cylinder, a gas guiding mechanism is arranged inside the double-cone cylinder, the gas guiding mechanism comprises a connecting pipe, a gas-conducting pipe is fixedly arranged at the top end of the connecting pipe, a sleeve is arranged on the top end of the gas-conducting pipe, and a spring capable of stretching and contracting is fixedly arranged at the bottom end of the sleeve. The utility model discloses the following technical scheme: when exhaust, the gas passes through the filter screen into the air inlet cylinder, and then is discharged through the gas guiding mechanism. The raw materials inside the double-cone cylinder gather at the low place inside the double-cone cylinder, and the filter screen at the air inlet end of the gas guiding mechanism is located at the high place inside the double-cone cylinder. Therefore, no matter how the double-cone cylinder rotates, the filter screen will not contact the raw materials and will be as far away from the raw materials as possible, so that the raw materials are not discharged with the gas during exhaust, and clogging does not occur.

[0004] The above-mentioned patent has the following problems:

[0005] The patent has some shortcomings when in use, such as: the double-cone rotary vacuum dryer may cause the wet materials to form groups during the drying process, which may result in insufficient drying of some materials and over-drying of other materials. In view of this, we propose a double-cone vacuum dryer material anti-grouping facility. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a double-cone vacuum dryer material anti-grouping facility to solve the problems proposed in the background.

[0007] Therefore, the utility model provides a double-cone vacuum dryer material anti-grouping facility, which comprises a base, two supports and a vacuum drying tank, the two supports are fixedly connected to the top surface of the base, the vacuum drying tank is rotatably connected between the two supports, and the utility model further comprises:

[0008] A rotating rod is rotationally connected to the inner wall of the vacuum drying tank, and one end of the rotating rod penetrates the inner wall of the vacuum drying tank and extends to the outside. A plurality of crushing blades are fixedly connected to the circumferential side of the rotating rod.

[0009] A first sprocket is fixedly connected to the vacuum drying tank.

[0010] A motor is fixedly connected to the top surface of the base, and the output shaft of the motor penetrates one of the supports and extends to the outside and is rotationally connected to one of the supports. A second sprocket is fixedly connected to the output shaft of the motor. The first sprocket and the second sprocket are engaged with the first chain.

[0011] A fixed block is fixedly connected to one of the supports.

[0012] A reciprocating assembly is located in the fixed block and is used to drive the rotating rod to rotate.

[0013] Based on the above structure, the vacuum drying tank, the rotating rod and the crushing blades are provided to ensure that the rotating rod can drive the plurality of crushing blades to rotate in the vacuum drying tank, so that the plurality of crushing blades can cut and scatter the baled materials. The first sprocket, the motor, the second sprocket and the first chain are provided to ensure that when the user starts the motor, the output shaft of the motor can drive the second sprocket to rotate, so that the second sprocket drives the first sprocket to rotate through the first chain, so that the first sprocket drives the vacuum drying tank to rotate between the two supports. The reciprocating assembly is provided to ensure that the user can drive the rotating rod to reciprocate in the vacuum drying tank through the reciprocating assembly.

[0014] In the above technical solution, further, the reciprocating assembly comprises:

[0015] A first gear slot is formed in the fixed block. A first gear is rotationally connected in the first gear slot, and one end of the first gear penetrates the inner wall of the first gear slot and extends into one of the supports and is fixed to one end of the rotating rod. Two incomplete gears are rotationally connected in the first gear slot, and one of the incomplete gears is engaged with the first gear.

[0016] A second gear slot is formed in the fixed block and is in communication with the first gear slot. A second gear and a third gear are rotationally connected in the second gear slot, and the second gear and the third gear are engaged with each other. One end of the second gear penetrates the inner wall of the second gear slot and extends into the first gear slot and is fixed to one of the incomplete gears.

[0017] The movable groove is arranged in the fixed block and communicates with the first gear groove and the second gear groove, the third sprocket and the fourth sprocket are rotationally connected in the movable groove, one end of the third sprocket penetrates the inner wall of the movable groove and extends into the first gear groove and is fixed with the other incomplete gear, one end of the fourth sprocket penetrates the inner wall of the movable groove and extends into the second gear groove and is fixed with the third gear, and the second chain is engaged between the third sprocket and the fourth sprocket.

[0018] The fifth sprocket is rotationally connected on one side of the fixed block, and one end of the fifth sprocket penetrates one side of the fixed block and extends into the movable groove and is fixed with the fourth sprocket.

[0019] The sixth sprocket is fixedly connected on the output shaft of the motor, and the third chain is engaged between the sixth sprocket and the fifth sprocket.

[0020] In the technical solution, the first gear can reciprocate in the first gear groove.

[0021] In the above technical solution, further, one end of the first gear is rotationally connected with one of the supports.

[0022] In the technical solution, when the first gear rotates, one end of the first gear can normally rotate in one of the supports.

[0023] In the above technical solution, further, one end of the second gear is rotationally connected with the first gear groove.

[0024] In the technical solution, when the second gear rotates, one end of the second gear can normally rotate in the first gear groove.

[0025] In the above technical solution, further, one end of the fourth sprocket is rotationally connected with the second gear groove.

[0026] In the technical solution, when the fourth sprocket rotates, one end of the fourth sprocket can normally rotate in the second gear groove.

[0027] In the above technical solution, further, one end of the third sprocket is rotationally connected with the first gear groove.

[0028] In the technical solution, when the third sprocket rotates, one end of the third sprocket can normally rotate in the first gear groove.

[0029] In the above technical solution, further, the other incomplete gear is engaged with the first gear.

[0030] In the technical solution, when the other incomplete gear rotates to the appropriate position, the other incomplete gear will be engaged with the first gear.

[0031] The utility model discloses the beneficial effect is:

[0032] The material anti -grouping facility of this double -cone vacuum drying machine, through the vacuum drying jar, rotating rod and broken blade who set up, ensure that rotating rod can drive multiple broken blade rotates in the vacuum drying jar, let multiple broken blade can cut the material of group cutting and scattering, through the first sprocket, motor, second sprocket and first chain who set up, ensure when the user starts motor, the output shaft of motor can drive second sprocket to rotate, let second sprocket drive first sprocket to rotate through first chain, make first sprocket drive vacuum drying jar to rotate between two supports, through the reciprocating assembly who sets up, ensure that the user can drive rotating rod reciprocating rotation in the vacuum drying jar through reciprocating assembly, solved when the damp material group, possibly cause partial material drying to be not sufficient, and another part of material can be over-dried problem. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the whole structure schematic drawing of the utility model;

[0034] Figure 2 It is the internal structure schematic drawing of the vacuum drying jar of the utility model;

[0035] Figure 3 It is the internal structure schematic drawing of fixed block one of the utility model;

[0036] Figure 4 It is the internal structure schematic drawing of fixed block two of the utility model.

[0037] The mark in the drawing indicates that:

[0038] 1, base;2, support;3, vacuum drying jar;4, rotating rod;5, broken blade;6, first sprocket;7, motor;8, second sprocket;9, first chain;10, fixed block;11, first gear slot;12, first gear;13, incomplete gear;14, second gear slot;15, second gear;16, third gear;17, movable slot;18, third sprocket;19, fourth sprocket;20, second chain;21, fifth sprocket;22, sixth sprocket;23, third chain. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the respective portions shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the associated objects before and after are in an "or" relationship.

[0042] It should be noted that in the description of the present application, the orientation or position relationship indicated by the orientation terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, only for the purpose of facilitating the description of the present application and simplifying the description, without the opposite indication, these orientation terms do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer relative to the contour of each component.

[0043] It should be noted that in this application, the terms "comprising", "including", or any other variant thereof, are intended to cover non-exclusive inclusions, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0044] Embodiment 1:

[0045] Please refer to Figure 1 - Figure 4 As shown in the figure, the embodiment provides a material anti-balling facility of a double-cone vacuum dryer, which comprises a base 1, two supports 2 and a vacuum drying tank 3. The two supports 2 are fixedly connected to the top surface of the base 1. The vacuum drying tank 3 is rotatably connected between the two supports 2. The material anti-balling facility further comprises:

[0046] A rotating rod 4 is rotatably connected to the inner wall of the vacuum drying tank 3. One end of the rotating rod 4 penetrates the inner wall of the vacuum drying tank 3 and extends to the outside. A plurality of crushing blades 5 are fixedly connected to the circumferential side of the rotating rod 4.

[0047] A first sprocket 6 is fixedly connected to the vacuum drying tank 3.

[0048] A motor 7 is fixedly connected to the top surface of the base 1. The output shaft of the motor 7 penetrates one of the supports 2 and is rotatably connected to the outside of the support 2. A second sprocket 8 is fixedly connected to the output shaft of the motor 7. A first chain 9 is engaged between the first sprocket 6 and the second sprocket 8.

[0049] A fixed block 10 is fixedly connected to one of the supports 2.

[0050] A reciprocating assembly is located in the fixed block 10 and is used to drive the rotating rod 4 to rotate.

[0051] Embodiment 2:

[0052] The embodiment provides a material anti-balling facility of a double-cone vacuum dryer, which further has the following technical features in addition to the technical solutions of the above-mentioned embodiments. The reciprocating assembly comprises:

[0053] The first gear slot 11 is arranged in the fixed block 10, the first gear 12 is rotatably connected in the first gear slot 11, and one end of the first gear 12 penetrates the inner wall of the first gear slot 11 and extends into one of the supports 2 and is fixed with one end of the rotating rod 4. Two incomplete gears 13 are rotatably connected in the first gear slot 11, and one of the incomplete gears 13 is engaged with the first gear 12;

[0054] The second gear slot 14 is arranged in the fixed block 10 and is in communication with the first gear slot 11, the second gear 15 and the third gear 16 are rotatably connected in the second gear slot 14, and the second gear 15 and the third gear 16 are engaged with each other, one end of the second gear 15 penetrates the inner wall of the second gear slot 14 and extends into the first gear slot 11 and is fixed with one of the incomplete gears 13;

[0055] The movable slot 17 is arranged in the fixed block 10 and is in communication with the first gear slot 11 and the second gear slot 14, the third sprocket 18 and the fourth sprocket 19 are rotatably connected in the movable slot 17, one end of the third sprocket 18 penetrates the inner wall of the movable slot 17 and extends into the first gear slot 11 and is fixed with the other incomplete gear 13, one end of the fourth sprocket 19 penetrates the inner wall of the movable slot 17 and extends into the second gear slot 14 and is fixed with the third gear 16, and the second chain 20 is engaged between the third sprocket 18 and the fourth sprocket 19;

[0056] The fifth sprocket 21 is rotatably connected to one side of the fixed block 10, and one end of the fifth sprocket 21 penetrates one side of the fixed block 10 and extends into the movable slot 17 and is fixed with the fourth sprocket 19;

[0057] The sixth sprocket 22 is fixedly connected to the output shaft of the motor 7, and the third chain 23 is engaged between the sixth sprocket 22 and the fifth sprocket 21.

[0058] Wherein, in use, the user will add wet material into the vacuum drying tank 3, then the user starts the motor 7, the output shaft of the motor 7 drives the second sprocket 8 to rotate, the second sprocket 8 drives the first sprocket 6 to rotate through the first chain 9, the first sprocket 6 drives the vacuum drying tank 3 to rotate between the two supports 2, wherein, when the output shaft of the motor 7 rotates, the output shaft of the motor 7 also drives the sixth sprocket 22 to rotate, the sixth sprocket 22 drives the fifth sprocket 21 to rotate on one side of the fixed block 10 through the third chain 23, when the fifth sprocket 21 rotates, the fifth sprocket 21 drives the fourth sprocket 19 to rotate in the movable groove 17, the fourth sprocket 19 drives the third sprocket 18 to rotate through the second chain 20, the third sprocket 18 drives the other incomplete gear 13 to rotate in the first gear groove 11, at the same time, when the fourth sprocket 19 rotates, the fourth sprocket 19 drives the third gear 16 to rotate in the second gear groove 14, the third gear 16 drives the second gear 15 to rotate in the second gear groove 14 in the opposite direction, the second gear 15 drives the two incomplete gears 13 to rotate in opposite directions, when one of the incomplete gears 13 rotates, the incomplete gear 13 drives the first gear 12 to rotate in the positive direction, when one of the incomplete gears 13 rotates to the appropriate position, one of the incomplete gears 13 disengages from the first gear 12, at the same time, the other incomplete gear 13 engages with the first gear 12, when the other incomplete gear 13 rotates, the other incomplete gear 13 drives the first gear 12 to rotate in the opposite direction, ensuring that the first gear 12 can reciprocate in the first gear groove 11.

[0059] Embodiment 3:

[0060] The embodiment provides a material anti-balling facility of a double-cone vacuum drying machine, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features, one end of the first gear 12 is rotatably connected with one of the supports 2.

[0061] Wherein, it is ensured that when the first gear 12 rotates, one end of the first gear 12 can normally rotate in one of the supports 2.

[0062] Embodiment 4:

[0063] The embodiment provides a material anti-balling facility of a double-cone vacuum drying machine, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features, one end of the second gear 15 is rotatably connected with the first gear groove 11.

[0064] Wherein, it is ensured that when the second gear 15 rotates, one end of the second gear 15 can normally rotate in the first gear groove 11.

[0065] Embodiment 5:

[0066] The embodiment provides a material anti-balling facility of a double-cone vacuum dryer, in addition to the technical scheme of the above embodiment, and has the following technical features: one end of the fourth sprocket 19 is rotationally connected with the second gear groove 14.

[0067] The fourth sprocket 19 is rotationally connected with the second gear groove 14.

[0068] Embodiment 6:

[0069] The embodiment provides a material anti-balling facility of a double-cone vacuum dryer, in addition to the technical scheme of the above embodiment, and has the following technical features: one end of the third sprocket 18 is rotationally connected with the first gear groove 11.

[0070] The third sprocket 18 is rotationally connected with the first gear groove 11.

[0071] Embodiment 7:

[0072] The embodiment provides a material anti-balling facility of a double-cone vacuum dryer, in addition to the technical scheme of the above embodiment, and has the following technical features: the other incomplete gear 13 is meshed with the first gear 12.

[0073] The other incomplete gear 13 is meshed with the first gear 12.

[0074] In use, the user adds wet material into the vacuum drying tank 3, and then the user starts the motor 7, so that the output shaft of the motor 7 drives the second sprocket 8 to rotate, the second sprocket 8 drives the first sprocket 6 to rotate through the first chain 9, and the first sprocket 6 drives the vacuum drying tank 3 to rotate between the two supports 2, wherein, when the output shaft of the motor 7 rotates, the output shaft of the motor 7 also drives the sixth sprocket 22 to rotate, the sixth sprocket 22 drives the fifth sprocket 21 to rotate on one side of the fixed block 10 through the third chain 23, when the fifth sprocket 21 rotates, the fifth sprocket 21 drives the fourth sprocket 19 to rotate in the movable groove 17, the fourth sprocket 19 drives the third sprocket 18 to rotate through the second chain 20, the third sprocket 18 drives the other incomplete gear 13 to rotate in the first gear groove 11, and at the same time, when the fourth sprocket 19 rotates, the fourth sprocket 19 drives the third gear 16 to rotate in the second gear groove 14, the third gear 16 drives the second gear 15 to rotate in the second gear groove 14 in the opposite direction, the second gear 15 drives the other incomplete gear 13 to rotate in the first gear groove 11 in the opposite direction, the two incomplete gears 13 rotate in opposite directions, when one of the incomplete gears 13 rotates, the incomplete gear 13 drives the first gear 12 to rotate in the positive direction, when one of the incomplete gears 13 rotates to the appropriate position, one of the incomplete gears 13 disengages from the first gear 12, and at the same time, the other incomplete gear 13 engages with the first gear 12, when the other incomplete gear 13 rotates, the other incomplete gear 13 drives the first gear 12 to rotate in the opposite direction, so that the first gear 12 can reciprocate in the first gear groove 11, when the first gear 12 reciprocates, the first gear 12 drives the rotating rod 4 to reciprocate in the inner cavity of the vacuum drying tank 3, the rotating rod 4 drives the plurality of crushing blades 5 to reciprocate in the inner cavity of the vacuum drying tank 3, so that the plurality of crushing blades 5 can cut and crush the bunched material.

[0075] The embodiments of the present application are described above in conjunction with the drawings, the embodiments and the features in the embodiments of the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, all of which belong to the protection of the present application.

Claims

1. A material anti-balling device of a double-cone vacuum dryer, comprising a base (1), two supports (2) and a vacuum drying tank (3), the two supports (2) are fixedly connected to the top surface of the base (1), and the vacuum drying tank (3) is rotatably connected between the two supports (2), characterized in that, Also include: The rotating rod (4) is rotatably connected to the inner wall of the vacuum drying tank (3), and one end of the rotating rod (4) penetrates the inner wall of the vacuum drying tank (3) and extends to the outside, a plurality of crushing blades (5) are fixedly connected to the side of the rotating rod (4); The first sprocket (6) is fixedly connected to the vacuum drying tank (3); The motor (7) is fixedly connected to the top surface of the base (1), and the output shaft of the motor (7) penetrates one of the supports (2) and extends to the outside and is rotatably connected with one of the supports (2), the output shaft of the motor (7) is fixedly connected with the second sprocket (8), and the first chain (9) is engaged between the second sprocket (8) and the first sprocket (6); The fixed block (10) is fixedly connected to one of the supports (2); The reciprocating assembly is located in the fixed block (10) and is used to drive the rotating rod (4) to rotate.

2. The material anti-bunching facility of a double-cone vacuum dryer according to claim 1, characterized in that, The reciprocating assembly comprises: The first gear slot (11) is formed in the fixed block (10), the first gear (12) is rotatably connected in the first gear slot (11), one end of the first gear (12) penetrates the inner wall of the first gear slot (11) and extends into one of the supports (2) and is fixed with one end of the rotating rod (4), two incomplete gears (13) are rotatably connected in the first gear slot (11), and one of the incomplete gears (13) is engaged with the first gear (12); The second gear slot (14) is formed in the fixed block (10) and communicates with the first gear slot (11), the second gear (15) and the third gear (16) are rotatably connected in the second gear slot (14), and the second gear (15) and the third gear (16) are engaged with each other, one end of the second gear (15) penetrates the inner wall of the second gear slot (14) and extends into the first gear slot (11) and is fixed with one of the incomplete gears (13); The movable groove (17) is formed in the fixed block (10) and communicates with the first gear slot (11) and the second gear slot (14), the third sprocket (18) and the fourth sprocket (19) are rotatably connected in the movable groove (17), one end of the third sprocket (18) penetrates the inner wall of the movable groove (17) and extends into the first gear slot (11) and is fixed with the other incomplete gear (13), one end of the fourth sprocket (19) penetrates the inner wall of the movable groove (17) and extends into the second gear slot (14) and is fixed with the third gear (16), and the second chain (20) is engaged between the third sprocket (18) and the fourth sprocket (19); The fifth sprocket (21) is rotatably connected to one side of the fixed block (10), and one end of the fifth sprocket (21) penetrates one side of the fixed block (10) and extends into the movable groove (17) and is fixed with the fourth sprocket (19); A sixth sprocket wheel (22) is fixedly connected to the output shaft of the motor (7), and the sixth sprocket wheel (22) is engaged with the fifth sprocket wheel (21) through a third chain (23).

3. The anti-lumping facility of a double-cone vacuum dryer according to claim 2, wherein One end of the first gear (12) is rotatably connected to one of the brackets (2).

4. The material anti-bunching facility of a double-cone vacuum dryer according to claim 2, wherein, One end of the second gear (15) is rotatably connected to the first gear slot (11).

5. The anti-lumping facility of a double-cone vacuum dryer according to claim 2, wherein One end of the fourth sprocket wheel (19) is rotatably connected to the second gear slot (14).

6. The anti-lumping facility of a double-cone vacuum dryer according to claim 2, wherein One end of the third sprocket wheel (18) is rotatably connected to the first gear slot (11).

7. The anti-lumping facility of a double-cone vacuum dryer according to claim 2, wherein, The other incomplete gear (13) is engaged with the first gear (12).

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