CN111137616A

CN111137616A - Automatic book borrowing and filing device

Info

Publication number: CN111137616A
Application number: CN202010113767.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Yantai Weihai Stationery Co ltd
Current assignee: Yantai Weihai Stationery Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-05-12

Abstract

The invention discloses an automatic book borrowing and filing device, which relates to the field of book borrowing, and particularly relates to an automatic book borrowing and filing device, which comprises a ground, wherein a main body is arranged on the upper side of the ground, a book cabinet containing a book shelf and first sliding cavities positioned on the front side and the rear side of the book cabinet are arranged in the main body, a first transmission cavity is arranged in the ground, a transmission assembly is arranged in the first transmission cavity, a second sliding cavity communicated with the first transmission cavity is arranged on the right side of the first transmission cavity, a first screw rod extending rightwards to the second sliding cavity is rotatably arranged on the left end wall of the first transmission cavity, a first sliding block is arranged on the first screw rod in a threaded fit manner, a first limiting block positioned on the left side of the first sliding block is fixedly arranged on the first screw rod, the device controls the specific positions of a pushing assembly and a filing assembly through a motor, and pushes the book to the filing assembly, the books are returned to the designated positions through the filing assembly, and manpower is saved.

Description

Automatic book borrowing and filing device

Technical Field

The invention relates to the technical field of book borrowing, in particular to an automatic book borrowing and filing device.

Background

The library is a mechanism for collecting, arranging and collecting book data for people to read and reference, the library appears 3000 years before the Gongyuan, the library has functions of preserving human cultural heritage, developing information resources, participating in social education and the like, a plurality of book managers are needed in the library, the book managers need to arrange, encode and put on the shelf for facilitating borrowing of readers, the readers also need to find books needed by the readers from numerous books, and the library needs a lot of time and a lot of manpower for the readers and the book managers.

Disclosure of Invention

Aiming at the defects of the technology, the invention provides an automatic book borrowing and filing device which can overcome the defects.

The invention relates to an automatic book borrowing and filing device, which comprises a ground, wherein a main body is arranged on the upper side of the ground, a book cabinet containing a book shelf and first sliding cavities positioned on the front side and the rear side of the book cabinet are arranged in the main body, a first transmission cavity is arranged in the ground, a transmission assembly is arranged in the first transmission cavity, a second sliding cavity communicated with the first transmission cavity is arranged on the right side of the first transmission cavity, a first screw rod extending rightwards to the second sliding cavity is rotatably arranged on the left end wall of the first transmission cavity, a first sliding block is arranged on the first screw rod in a threaded fit manner, a first limiting block positioned on the left side of the first sliding block is fixedly arranged on the first screw rod, a second transmission cavity is arranged on the front side of the first sliding block, a third transmission cavity is arranged on the rear side of the first sliding block, and a second screw rod extending upwards is rotatably arranged on the upper end wall of the, a first bevel gear fixedly arranged at the lower end of the second screw is arranged in the second transmission cavity, a first rotating shaft extending leftwards is rotatably arranged on the left end wall of the second transmission cavity, a second bevel gear which is fixedly connected with the right end of the first rotating shaft and is meshed with the first bevel gear is arranged in the second transmission cavity, a third screw rod extending upwards is rotatably arranged on the upper end wall of the third transmission cavity, a third bevel gear fixedly arranged at the lower end of the third screw rod is arranged in the third transmission cavity, a second rotating shaft extending leftwards is rotatably arranged on the left end wall of the third transmission cavity, a fourth bevel gear which is fixedly connected with the right end of the second rotating shaft and is meshed with the third bevel gear is arranged in the third transmission cavity, the first sliding cavity is internally provided with a pushing-out assembly positioned at the rear side of the bookcase, and the first sliding cavity is internally provided with a filing assembly positioned at the front side of the bookcase.

Preferably, the release subassembly include with the third screw rod passes through screw-thread fit's second sliding block, be equipped with front side and the communicating fourth transmission chamber in the external world in the second sliding block, fourth transmission chamber right-hand member wall fixed mounting has first motor, first motor left end power connection has first drive shaft, first drive shaft left end fixed mounting has first connecting rod, the first connecting rod other end articulates there is the second connecting rod, the second connecting rod other end articulates there is the connecting block, connecting block right-hand member fixed mounting has the promotion piece, fourth transmission chamber front end wall fixed connection have with promote piece complex, it is equipped with the second stopper to promote a front end.

Preferably, file the subassembly include with the second screw rod passes through screw-thread fit's third sliding block, be equipped with rear side and external communicating fifth transmission chamber in the third sliding block, the third axis of rotation that contains the torsional spring is installed in the wall rotation about the fifth transmission chamber, fixed mounting has the flat board in the third axis of rotation, fifth transmission chamber lower extreme ratio fixed mounting has the third stopper and is located the first electro-magnet of third stopper front side, dull and stereotyped lower extreme be equipped with the first iron plate of first electro-magnet complex.

Preferably, the transmission assembly comprises a second motor located on the left end wall of the first transmission cavity, the right end of the second motor is in power connection with a second driving shaft, the right end of the fourth rotating shaft is connected with a fourth rotating shaft through a first spline, a first gear is fixedly installed on the right side of the fourth rotating shaft, the lower end wall of the first transmission cavity is provided with a sliding groove, a fourth sliding block of which the upper end is connected with the fourth rotating shaft through a bearing is arranged in the sliding groove in a sliding manner, a second electromagnet is arranged on the right end of the sliding groove, a second iron block matched with the second electromagnet is arranged on the right end of the fourth sliding block, the left end of the fourth sliding block is connected with the left end wall of the sliding groove through a spring, a second gear capable of being meshed with the first gear is fixedly installed on the first screw rod, and a fifth rotating shaft located on the front side of the second driving shaft is rotatably installed on the left end, and a third gear which can be meshed with the first gear and a first belt pulley positioned on the right side of the third gear are fixedly arranged on the fifth rotating shaft.

Preferably, the transmission assembly still include with first transmission chamber left end wall rotate the installation and with the same water flat line's of first rotation axis sixth rotation axis, sixth rotation axis right-hand member with first rotation axis passes through the second spline connection, in the sixth rotation axis fixed mounting have with first belt pulley passes through the second belt pulley that first belt is connected and is located the third belt pulley on second belt pulley right side, first transmission chamber left end wall rotate install with the same water flat line's of second rotation axis seventh rotation axis, seventh rotation axis right side with the second rotation axis passes through the third spline connection, in the seventh rotation axis fixed mounting with the fourth belt pulley that the third belt pulley passes through the second belt and is connected.

The beneficial effects are that: the device simple structure, convenient operation, the device at the during operation, through the specific position of motor control release subassembly with filing the subassembly, push away the book through the release subassembly and supply the people to get the book to the recovery unit behind the subassembly that files, through filing the subassembly with the book playback to the assigned position, do not need librarian to file the book, also need not borrow the people of book to look for the book that wants in numerous books, save time practices thrift the manpower.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of A-A of FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic view of B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic view of C-C in FIG. 2 according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of D-D in FIG. 3 according to an embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an automatic book borrowing and filing device, which comprises a ground 10, wherein a main body 19 is arranged on the upper side of the ground 10, a book cabinet 21 containing a book shelf 20 and first sliding cavities 68 positioned on the front side and the rear side of the book cabinet 21 are arranged in the main body 19, a first transmission cavity 49 is arranged in the ground 10, a transmission component is arranged in the first transmission cavity 49, a second sliding cavity 22 communicated with the first transmission cavity 49 is arranged on the right side of the first transmission cavity 49, a first screw 26 extending rightwards to the second sliding cavity 22 is rotatably arranged on the left end wall of the first transmission cavity 49, a first sliding block 24 is arranged on the first screw 26 in a threaded fit manner, a first limiting block 50 positioned on the left side of the first sliding block 24 is fixedly arranged on the first screw 26, a second transmission cavity 23 is arranged on the front side of the first sliding block 24, a third transmission cavity 34 is arranged on the rear side of the first sliding block 24, a second screw 18 extending upwards is rotatably installed on the upper end wall of the second transmission cavity 23, a first bevel gear 17 fixedly installed at the lower end of the second screw 18 is arranged in the second transmission cavity 23, a first rotating shaft 15 extending leftwards is rotatably installed on the left end wall of the second transmission cavity 23, a second bevel gear 16 fixedly connected with the right end of the first rotating shaft 15 and meshed with the first bevel gear 17 is arranged in the second transmission cavity 23, a third screw 40 extending upwards is rotatably installed on the upper end wall of the third transmission cavity 34, a third bevel gear 33 fixedly installed at the lower end of the third screw 40 is arranged in the third transmission cavity 34, a second rotating shaft 32 extending leftwards is rotatably installed on the left end wall of the third transmission cavity 34, a fourth bevel gear 31 fixedly connected with the right end of the second rotating shaft 32 and meshed with the third bevel gear 33 is arranged in the third transmission cavity 34, a push-out assembly positioned at the rear side of the bookcase 21 is arranged in the first sliding cavity 68, and a filing assembly positioned at the front side of the bookcase 21 is arranged in the first sliding cavity 68.

Beneficially, the pushing-out assembly includes a second sliding block 37 in threaded fit with the third screw 40, a fourth transmission cavity 38 with a front side communicating with the outside is arranged in the second sliding block 37, a first motor 39 is fixedly mounted on a right end wall of the fourth transmission cavity 38, a first driving shaft 62 is dynamically connected to a left end of the first motor 39, a first connecting rod 36 is fixedly mounted on a left end of the first driving shaft 62, a second connecting rod 35 is hinged to the other end of the first connecting rod 36, a connecting block 30 is hinged to the other end of the second connecting rod 35, a pushing block 29 is fixedly mounted on a right end of the connecting block 30, a front end wall of the fourth transmission cavity 38 is fixedly connected to the pushing block 29, and a second limiting block 28 is arranged at a front end of the pushing block 29.

Beneficially, the filing assembly includes a third sliding block 41 in threaded fit with the second screw 18, a fifth transmission cavity 42 is arranged in the third sliding block 41, the rear side of the fifth transmission cavity is communicated with the outside, a third rotating shaft 45 including a torsion spring 46 is rotatably mounted on the left wall and the right wall of the fifth transmission cavity 42, a flat plate 43 is fixedly mounted on the third rotating shaft 45, a third limiting block 47 and a first electromagnet 48 located on the front side of the third limiting block 47 are fixedly mounted at the lower end of the fifth transmission cavity 42, and a first iron block 44 in fit with the first electromagnet 48 is arranged at the lower end of the flat plate 43.

Advantageously, the transmission assembly comprises a second motor 69 located at the left end wall of the first transmission chamber 49, the right end of the second motor 69 is in power connection with a second driving shaft 51, the right end of the fourth rotating shaft 52 is in connection with a fourth rotating shaft 52 through a first spline 63, a first gear 58 is fixedly installed at the right side of the fourth rotating shaft 52, the lower end wall of the first transmission chamber 49 is provided with a sliding groove 66, a fourth sliding block 53 with the upper end connected with the fourth rotating shaft 52 through a bearing is arranged in the sliding groove 66 in a sliding manner, the right end of the sliding groove 66 is provided with a second electromagnet 67, the right end of the fourth sliding block 53 is provided with a second iron block 65 matched with the second electromagnet 67, the left end of the fourth sliding block 53 is connected with the left end wall of the sliding groove 66 through a spring 64, a second gear 25 capable of being meshed with the first gear 58 is fixedly installed on the first screw 26, a fifth rotating shaft 56 positioned in front of the second driving shaft 51 is rotatably mounted on the left end wall of the first transmission cavity 49, and a third gear 57 capable of meshing with the first gear 58 and a first belt pulley 55 positioned on the right side of the third gear 57 are fixedly mounted on the fifth rotating shaft 56.

Advantageously, the transmission assembly further comprises a sixth rotating shaft 11 rotatably mounted on the left end wall of the first transmission cavity 49 and horizontally aligned with the first rotating shaft 15, the right end of the sixth rotating shaft 11 is connected to the first rotating shaft 15 through a second spline 14, a second pulley 12 connected to the first pulley 55 through a first belt 54 and a third pulley 13 located on the right side of the second pulley 12 are fixedly mounted on the sixth rotating shaft 11, a seventh rotating shaft 61 rotatably mounted on the left end wall of the first transmission cavity 49 and horizontally aligned with the second rotating shaft 32 is rotatably mounted on the left end wall of the seventh rotating shaft 61, the right side of the seventh rotating shaft 61 is connected to the second rotating shaft 32 through a third spline, and a fourth pulley 60 connected to the third pulley 13 through a second belt 59 is fixedly mounted on the seventh rotating shaft 61.

In the initial state, the second electromagnet 67 is not energized, the spring 64 is in the normal tension state, the fourth slider 53 is positioned on the leftmost side, the first gear 58 is engaged with the second gear 25, the first slider 24 is positioned on the rightmost side, the second slider 37 and the third slider 41 are positioned on the lowermost side, the first electromagnet 48 on the rearmost side of the push block 29 is not energized, the third rotating shaft 45 is in the normal tension state, and the first iron block 44 is in the horizontal state.

When a book needs to be borrowed, the scanner 27 senses the position of the book, the second motor 69 is started to rotate in a positive direction, so as to drive the second driving shaft 51 to rotate, so as to drive the fourth rotating shaft 52 to rotate, so as to drive the first gear 58 to rotate, so as to drive the first screw 26 to rotate, so as to drive the first sliding block 24 to slide leftwards to the designated bookshelf 20, the second electromagnet 67 is electrified, so as to attract the second iron block 65, so as to drive the fourth sliding block 53 to slide rightwards, so as to drive the fourth rotating shaft 52, the first gear 58 to slide rightwards, the spring 64 is stretched, the first gear 58 is engaged with the third gear 57, the first gear 58 drives the third gear 57 to rotate, so as to drive the fifth rotating shaft 56 to rotate, so as to drive the first belt pulley 55 to rotate, so as to drive the second belt pulley 12 to rotate, so as to drive the sixth rotating shaft 11 to rotate, so as to, thereby driving the fourth belt pulley 60 to rotate, thereby driving the seventh rotating shaft 61 to rotate, thereby driving the first rotating shaft 15 and the second rotating shaft 32 to rotate, thereby driving the second bevel gear 16 and the fourth bevel gear 31 to rotate, thereby driving the third bevel gear 33 and the first bevel gear 17 to rotate, thereby driving the third screw 40 and the second screw 18 to rotate, thereby driving the second sliding block 37 and the third sliding block 41 to slide upwards, when the second sliding block 37 and the third sliding block 41 slide to a specified position, the second motor 69 is stopped, the first motor 39 is started to rotate for one circle, thereby driving the first driving shaft 62 to rotate for one circle, thereby driving the pushing block 29 to slide rightwards to push out the book to the flat plate 43 and then to return to the fourth transmission cavity 38, the second motor 69 is started to rotate reversely, thereby driving the second driving shaft 51 to rotate, thereby driving the fourth rotating shaft 52 to rotate, thereby driving the first gear 58 to rotate, thereby rotating the third gear 57, and thus the fifth rotating shaft 56, and thus the first belt pulley 55, and thus the second belt pulley 12, and thus the sixth rotating shaft 11, and thus the third belt pulley 13, and thus the fourth belt pulley 60, and thus the seventh rotating shaft 61, and thus the first rotating shaft 15, and the second rotating shaft 32, and thus the second bevel gear 16, and the fourth bevel gear 31, and thus the third bevel gear 33, and the first bevel gear 17, and thus the third screw 40, and the second screw 18, and thus the second sliding block 37, and the third sliding block 41, are driven to slide downward, and when the second sliding block 37, and the third bevel gear 41 slide to the lowermost side and then the second electromagnet 67 is powered off, the spring 64 acts on the fourth sliding block 53, the fourth rotating shaft 52, and the first gear 58, and thus the first rotating shaft 37, and thus the second rotating shaft 32, and thus the second rotating shaft 16, and the fourth bevel gear 31, the first gear 58 is meshed with the second gear 25, the first gear 58 drives the second gear 25 to rotate, so that the first screw 26 is driven to rotate, the first sliding block 24 is driven to slide rightwards, and when the first sliding block 24 slides to the rightmost side, the second motor 69 stops to take out the book; when returning the book, the book is placed on the plate 43, the second motor 69 is turned forward to rotate the second driving shaft 51, thereby rotating the fourth rotating shaft 52, thereby rotating the first gear 58, thereby rotating the second gear 25, thereby rotating the first screw 26, thereby driving the first sliding block 24 to slide leftward to the designated bookshelf 20, the second electromagnet 67 is energized to attract the second iron block 65, thereby driving the fourth sliding block 53 to slide rightward, thereby driving the fourth rotating shaft 52, the first gear 58 to slide rightward, the spring 64 is stretched, the first gear 58 is engaged with the third gear 57, the first gear 58 drives the third gear 57 to rotate, thereby driving the fifth rotating shaft 56 to rotate, thereby driving the first belt pulley 55 to rotate, thereby driving the second belt pulley 12 to rotate, thereby driving the sixth rotating shaft 11 to rotate, thereby driving the third belt pulley 13 to rotate, thereby driving the fourth belt pulley 60 to rotate, thereby driving the seventh rotating shaft 61 to rotate, thereby driving the first rotating shaft 15 and the second rotating shaft 32 to rotate, thereby driving the second bevel gear 16 and the fourth bevel gear 31 to rotate, thereby driving the third bevel gear 33 and the first bevel gear 17 to rotate, thereby driving the third screw 40 and the second screw 18 to rotate, thereby driving the second sliding block 37 and the third sliding block 41 to slide upwards, when the second sliding block 37 and the third sliding block 41 slide to the uppermost side, the second motor 69 stops, the first electromagnet 48 is energized, the first iron block 44 is attracted, the third rotating shaft 45 is twisted, the book slides to the bookshelf 20, the first electromagnet 48 is de-energized, because the third rotating shaft 45 acts on the flat plate 43 to return to the horizontal state, the second motor 69 is started to rotate reversely, thereby driving the second driving shaft 51 to rotate, thereby driving the fourth rotating shaft 52 to rotate, thereby driving the first gear 58 to rotate, thereby rotating the third gear 57, and thus the fifth rotating shaft 56, and thus the first belt pulley 55, and thus the second belt pulley 12, and thus the sixth rotating shaft 11, and thus the third belt pulley 13, and thus the fourth belt pulley 60, and thus the seventh rotating shaft 61, and thus the first rotating shaft 15, and the second rotating shaft 32, and thus the second bevel gear 16, and the fourth bevel gear 31, and thus the third bevel gear 33, and the first bevel gear 17, and thus the third screw 40, and the second screw 18, and thus the second sliding block 37, and the third sliding block 41, are driven to slide downward, and when the second sliding block 37, and the third bevel gear 41 slide to the lowermost side and then the second electromagnet 67 is powered off, the spring 64 acts on the fourth sliding block 53, the fourth rotating shaft 52, and the first gear 58, and thus the first rotating shaft 37, and thus the second rotating shaft 32, and thus the second rotating shaft 16, and the fourth bevel gear 31, the first gear 58 is engaged with the second gear 25, the first gear 58 drives the second gear 25 to rotate, so as to drive the first screw 26 to rotate, so as to drive the first sliding block 24 to slide rightwards, and when the first sliding block 24 slides to the rightmost side, the second motor 69 stops, and the device resets.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. An automatic book borrowing and filing device comprises a ground, wherein a main body is arranged on the upper side of the ground, a book cabinet containing a book shelf and first sliding cavities which are positioned on the front side and the rear side of the book cabinet are arranged in the main body, a first transmission cavity is arranged in the ground, a transmission assembly is arranged in the first transmission cavity, a second sliding cavity communicated with the first transmission cavity is arranged on the right side of the first transmission cavity, a first screw rod which extends to the second sliding cavity rightwards is rotatably arranged on the left end wall of the first transmission cavity, a first sliding block is arranged on the first screw rod in a threaded fit manner, a first limiting block positioned on the left side of the first sliding block is fixedly arranged on the first screw rod, a second transmission cavity is arranged on the front side of the first sliding block, a third transmission cavity is arranged on the rear side of the first sliding block, and a second screw rod which extends upwards is rotatably arranged on the upper end wall of, a first bevel gear fixedly arranged at the lower end of the second screw is arranged in the second transmission cavity, a first rotating shaft extending leftwards is rotatably arranged on the left end wall of the second transmission cavity, a second bevel gear which is fixedly connected with the right end of the first rotating shaft and is meshed with the first bevel gear is arranged in the second transmission cavity, a third screw rod extending upwards is rotatably arranged on the upper end wall of the third transmission cavity, a third bevel gear fixedly arranged at the lower end of the third screw rod is arranged in the third transmission cavity, a second rotating shaft extending leftwards is rotatably arranged on the left end wall of the third transmission cavity, a fourth bevel gear which is fixedly connected with the right end of the second rotating shaft and is meshed with the third bevel gear is arranged in the third transmission cavity, the first sliding cavity is internally provided with a pushing-out assembly positioned at the rear side of the bookcase, and the first sliding cavity is internally provided with a filing assembly positioned at the front side of the bookcase.

2. An automatic book borrowing and archiving apparatus according to claim 1, wherein: the release subassembly include with the third screw rod passes through screw-thread fit's second sliding block, be equipped with front side and external communicating fourth transmission chamber in the second sliding block, fourth transmission chamber right-hand member wall fixed mounting has first motor, first motor left end power connection has first drive shaft, first drive shaft left end fixed mounting has first connecting rod, the first connecting rod other end articulates there is the second connecting rod, the second connecting rod other end articulates there is the connecting block, connecting block right-hand member fixed mounting has and promotes the piece, fourth transmission chamber front end wall fixedly connected with promote piece complex, it is equipped with the second stopper to promote a front end.

3. An automatic book borrowing and archiving apparatus according to claim 2, wherein: the filing assembly comprises a third sliding block matched with the second screw rod through threads, a fifth transmission cavity communicated with the outside is arranged in the third sliding block, a third rotating shaft containing a torsion spring is installed by rotating the left wall and the right wall of the fifth transmission cavity, a flat plate is fixedly arranged on the third rotating shaft, a third limiting block and a first electromagnet arranged on the front side of the third limiting block are fixedly arranged at the lower end of the fifth transmission cavity, and a first iron block matched with the first electromagnet is arranged at the lower end of the flat plate.

4. An automatic book borrowing and archiving apparatus according to claim 3, wherein: the transmission assembly comprises a second motor positioned on the left end wall of the first transmission cavity, the right end of the second motor is in power connection with a second driving shaft, the right end of the fourth rotating shaft is connected with a fourth rotating shaft through a first spline, a first gear is fixedly installed on the right side of the fourth rotating shaft, the lower end wall of the first transmission cavity is provided with a sliding groove, a fourth sliding block of which the upper end is connected with the fourth rotating shaft through a bearing is arranged in the sliding groove in a sliding manner, a second electromagnet is arranged on the right end of the sliding groove, a second iron block matched with the second electromagnet is arranged on the right end of the fourth sliding block, the left end of the fourth sliding block is connected with the left end wall of the sliding groove through a spring, a second gear capable of being meshed with the first gear is fixedly installed on the first screw rod, and a fifth rotating shaft positioned on the front side of the second driving shaft is rotatably installed on the left, and a third gear which can be meshed with the first gear and a first belt pulley positioned on the right side of the third gear are fixedly arranged on the fifth rotating shaft.

5. An automatic book borrowing and archiving apparatus according to claim 4, wherein: drive assembly still include with first transmission chamber left end wall rotate the installation and with the same water flat line's of first rotation axis sixth rotation axis, sixth rotation axis right-hand member with first rotation axis passes through the second spline connection, in the sixth rotation axis fixed mounting with first belt pulley passes through the second belt pulley that first belt is connected and is located the third belt pulley on second belt pulley right side, first transmission chamber left end wall rotate install with the same water flat line's of second rotation axis seventh rotation axis, seventh rotation axis right side with the second rotation axis passes through the third spline connection, in the seventh rotation axis fixed mounting have with the fourth belt pulley that the third belt pulley passes through the second belt and connects.