CN113606319A

CN113606319A - But manual power transmission device of high-speed joint separation

Info

Publication number: CN113606319A
Application number: CN202110851975.5A
Authority: CN
Inventors: 曹琛; 杨帅; 关志伟; 张玉美
Original assignee: Tianjin Aerospace Electromechanical Equipment Research Institute
Current assignee: Tianjin Aerospace Electromechanical Equipment Research Institute
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-11-05
Anticipated expiration: 2041-07-27
Also published as: CN113606319B

Abstract

The invention provides a manual power transmission device capable of being quickly connected and separated, which comprises a power transmission assembly and a handheld speed reducer assembly, wherein the handheld speed reducer assembly is used for driving the power transmission assembly; the power transmission assembly comprises a power input shaft, a gear transmission assembly and a power output shaft, the output end of the power input shaft is connected with the gear transmission assembly, the input end of the power output shaft is connected with the gear transmission assembly, the input end of the power input shaft is provided with a jack, the handheld speed reducer assembly is provided with a butt joint corresponding to the jack, and the handheld speed reducer assembly is connected with the power input end. The manual power transmission device capable of being quickly connected and separated has the advantages of simple structure, strong applicability and quick use, can be quickly connected during use, can be quickly separated after use, can be used as a set of auxiliary manual power transmission device, can be used as a standby when the automatic function of a machine is lacked, and cannot be too bloated and expanded to influence the automatic operation of the whole machine.

Description

But manual power transmission device of high-speed joint separation

Technical Field

The invention belongs to the field of manual power transmission of non-coincident shafts, and particularly relates to a manual power transmission device capable of being quickly connected and separated.

Background

In the prior art, a mechanical product usually has a set of perfect automatic power transmission system, and in order to ensure the continuous operation of the machine, a set of manual power transmission system under emergency needs to be equipped. Generally, a deviation exists between a port needing power and an input port, and a chain transmission mode and a belt transmission mode are mostly adopted as a common transmission system in a non-coincident direction, but the transmission stability is poor, and a fixed and unchangeable transmission ratio cannot be ensured; and the general transmission device has complex structure and poor applicability, and cannot realize quick connection and separation.

Disclosure of Invention

In view of the above, the present invention is directed to a manual power transmission device capable of being quickly connected and separated, so as to solve the problems of poor transmission stability, insufficient applicability, and incapability of quick connection and separation of a transmission mechanism in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a manual power transmission device capable of being quickly connected and separated comprises a power transmission assembly and a handheld speed reducer assembly, wherein the handheld speed reducer assembly is used for driving the power transmission assembly;

the power transmission assembly comprises a power input shaft, a gear transmission assembly and a power output shaft, the output end of the power input shaft is connected with the gear transmission assembly, the input end of the power output shaft is connected with the gear transmission assembly, the input end of the power input shaft is provided with a jack, the handheld speed reducer assembly is provided with a butt joint matched with the jack, and the handheld speed reducer assembly is connected with the power input end.

Furthermore, the input end of the power input shaft is connected with an input shaft guide sleeve, the input shaft guide sleeve is installed on the rack, the handheld speed reducer assembly comprises a power butt joint, and the power butt joint penetrates through the outer wall of the rack and then is connected with the jack in a matched mode.

Further, the gear transmission assembly comprises a shell and an outer cover, an inner cavity is formed after the shell and the outer cover are buckled and installed, two groups of shaft sleeves are installed in the inner cavity, deep groove ball bearings are installed at two ends of each group of shaft sleeves, a driving gear is installed on the outer wall of one group of shaft sleeves, a driven gear is installed on the outer wall of the other group of shaft sleeves, the driving gear is meshed with the driven gear, a gear transmission assembly fixing support is installed on the shell, and the gear transmission assembly fixing support is installed on the rack.

Furthermore, each group of shaft sleeves is provided with an annular bulge, each group of shaft sleeves is also provided with a first hole elastic check ring, the two gears are respectively arranged between the corresponding annular bulge and the first hole elastic check ring, and the two gears and the corresponding shaft sleeves transmit torque by virtue of flat keys.

Furthermore, guide flat key grooves are processed in the inner rings of the two groups of shaft sleeves, a guide flat key is installed at the output end of power input, a guide flat key is installed at the input end of a power output shaft, the output end of the power input shaft is connected with the shaft sleeve provided with the driving gear, and the input end of the power output shaft penetrates through the shaft sleeve provided with the driven gear and then is connected with the power input shaft through a push plate.

Furthermore, a through hole is formed in the push plate, a copper sleeve is installed in the through hole, the input end of the power output shaft penetrates through the copper sleeve and then is connected with a round nut, a stop washer for the round nut is installed between the round nut and the push plate, an annular groove is formed in the power input shaft, an arc-shaped groove corresponding to the groove is formed in the bottom of the push plate, and the bottom of the support plate is inserted into the groove.

Furthermore, the power output shaft is further provided with an output shaft guide assembly, the output shaft guide assembly comprises a guide support, a cavity is arranged inside the guide support, annular bosses are arranged at two ends of the cavity of the guide support, a thrust ball bearing is arranged at one end of the cavity, a nylon sleeve and a circlip for a second hole are arranged at the other end of the cavity, one end of the nylon sleeve is tightly propped against the annular bosses, and the other end of the nylon sleeve is limited by the circlip for the second hole.

Furthermore, a thrust ball bearing collar is tightly pressed on the annular boss, the seat ring is limited by a compression spring, the power output shaft is sleeved with the compression spring, one end of the compression spring is tightly pressed on the power output shaft collar, and the other end of the compression spring is tightly pressed on the thrust ball bearing.

Furthermore, the handheld speed reducer assembly comprises a speed reducer, an input connecting plate is connected to an input flange of the speed reducer, an output connecting plate is connected to an output flange, the input connecting plate is connected with the top of the output connecting plate through a connecting shaft, a power butt joint is installed on an output shaft of the speed reducer, the power butt joint is in a regular hexagonal prism shape, the power butt joint is fixed on the output shaft of the speed reducer through a set screw, a round hole is formed in the lower portion of the output connecting plate, a positioning screw is installed in the round hole, and the positioning screw is connected to the rack;

the input shaft of the speed reducer is connected with a shaking rotating handle, the shaking rotating handle comprises a shaking handle shaft and a rotating shaking handle, the rotating shaking handle is installed on the shaking handle shaft, and the shaking handle shaft is inserted into the input end of the speed reducer.

Compared with the prior art, the manual power transmission device capable of being quickly connected and separated has the following advantages:

(1) the manual power transmission device capable of being quickly connected and separated has the advantages of simple structure, strong applicability and quick use, can be quickly connected during use, can be quickly separated after use, can be used as a set of auxiliary manual power transmission device, can be used as a standby when the automatic function of a machine is lacked, and cannot be too bloated and expanded to influence the automatic operation of the whole machine.

(2) The manual power transmission device capable of being quickly connected and separated has the power transmission function of the parallel shafts, realizes torque transmission through gear meshing transmission under the driving of the handheld speed reducer assembly, and has the characteristics of quick connection and separation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a structural part diagram of a manual power transmission device capable of being quickly connected and disconnected according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a quick connect/disconnect manual power transmission device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a gear assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an output shaft guide assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a handheld speed reducer assembly according to an embodiment of the invention.

Description of reference numerals:

1. an input shaft guide sleeve; 2. a power input shaft; 3. a power take-off shaft; 4. pushing the plate; 5. a gear drive assembly; 6. a gear transmission assembly fixing bracket; 7. an output shaft guide assembly; 8. a compression spring; 9. a hand-held reducer assembly; 10. a guiding flat key; 11. a round nut; 12. a lock washer for a round nut; 13. a copper sleeve; 14. a housing; 15. an outer cover; 16. a deep groove ball bearing; 17. a shaft sleeve; 18. a driving gear; 19. a driven gear; 20. a flat bond; 21. a circlip for the first hole; 22. a thrust ball bearing; 23. a guide bracket; 24. a nylon sleeve; 25. a circlip for the second hole; 26. a speed reducer; 27. an input connection board; 28. an output connection plate; 29. a connecting shaft; 30. a powered docking head; 31. tightening the screw; 32. a rocking handle shaft; 33. rotating the rocking handle; 34. and (5) positioning the screw.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, a manual power transmission device capable of being quickly connected and disconnected includes the following:

as shown in fig. 1 and 2, in the parallel shaft power transmission device, an input shaft guide sleeve 1, a gear transmission assembly fixing support 6 and an output shaft guide assembly 7 are connected with a frame and are fixed ends of the device. The input end of the power input shaft 2 passes through the input shaft guide sleeve 1, the guide flat key 10 is installed at the connecting end shaft section of the power input shaft and passes through the transmission gear assembly 5, and the push plate 4 is clamped by the groove of the middle shaft section; the connecting end of the power output shaft 3 penetrates through a round hole of the push plate 4, the power output shaft 23 is axially positioned by a round nut 11 and a stop washer 12 for the round nut, a copper sleeve 13 is arranged between the power output shaft 23 and the round hole of the push plate 4, a shaft section provided with a guide flat key 10 penetrates through the transmission gear assembly 5, a shaft collar of the power output shaft 32 abuts against one end of a compression spring 8, and the other end of the compression spring abuts against an output shaft guide assembly 7; the hand-held reducer assembly 9 is an external assembly.

The parallel shaft power transmission device comprises an input shaft guide sleeve 1, a power input shaft 2, a power output shaft 3, a push plate 4, a gear transmission assembly 5 fixing support, an output shaft guide assembly 7, a compression spring 8 and a handheld speed reducer assembly 9. The device possesses parallel shaft power transmission function, realizes the transmission of moment of torsion through gear engagement transmission under handheld reduction gear subassembly 9 drive to possess the characteristics of quick access and separation.

The input shaft guide sleeve 1 is a guide part of the power input shaft 2 of the device, comprises a stainless steel shell 14 and a copper bush, and is integrally installed on a rack, wherein the inner diameter of the copper bush 13 is slightly larger than the outer diameter of the input shaft, and the copper bush has enough length to ensure the smooth guide of the input shaft.

The power input shaft 2 is a power input end of the device, the input shaft is divided into an input end and a connecting end, the input end is provided with a hexagonal prism hole and is matched and connected with an external handheld speed reducer assembly 9, the input end part of the shaft penetrates through an input shaft guide copper sleeve 13, a guide flat key 10 is installed on a shaft section of the connecting end and penetrates through a driving gear 18 of the gear transmission assembly 5, an annular groove is formed in the middle of the input shaft, and the power input shaft 2 can axially move and rotate around an axis.

The power output shaft 3 is the power output end of the device, the output shaft is divided into an output end and a connecting end, a regular hexagonal prism is machined on the output end shaft head of the output shaft and is in butt joint transmission with a regular hexagonal prism hole of the power action mechanism, stable power output is guaranteed, the connecting end of the output shaft penetrates through a round hole of the push plate 4, the round nut 11 is used for axial positioning, and a shaft section provided with the guide flat key 10 penetrates through a driven gear 19 of the gear transmission assembly 5.

The push plate 4 is a connecting piece of the power input shaft 2 and the power output shaft 3, one end of the push plate is semicircular, a circular hole is formed in the circle center position, one end of the push plate is a semicircular groove, one end of the groove is embedded into the annular groove of the input shaft, the circular hole at the other end of the push plate is sleeved into the connecting end of the output shaft, a copper sleeve 13 is installed at the matching position of the shaft and the hole, and the circular nut 11 is axially positioned. When the power input shaft 2 is pushed axially, the power output shaft 3 is driven to move axially by the action of the push plate 4.

The gear transmission assembly 5 shown in fig. 3 is a closed independent assembly, the outer part is a shell 14 and an outer cover 15, a shaft sleeve 17, a driving gear 18 and a driven gear 19 are arranged in the assembly, the two gears are arranged on the shaft sleeve 17 through flat keys 20, the gears are axially positioned through a first hole and an elastic retainer ring 21, and deep groove ball bearings 16 are arranged at two ends of the shaft sleeve.

The gear transmission assembly 5 comprises a shell 14, an outer cover 15, a driving gear 18, a driven gear 19, a deep groove ball bearing 16, a shaft sleeve 17, a hole elastic retainer ring and a flat key 20. The driving gear 18 and the driven gear 19 respectively penetrate into the shaft sleeve 17 and are axially positioned by the elastic retainer ring for the hole, and then are respectively and integrally installed on the power input shaft 2 and the power output shaft 3, so that the meshing transmission of the driving gear 18 and the driven gear 19 is ensured. At each end of the sleeve 17 a deep groove ball bearing 16 is mounted, wherein the inner bearing ring is positioned by means of the shoulder of the sleeve 17 and the outer bearing ring is positioned by means of the housing 14 and the outer cover 15. The center distance of the two gears is adjusted according to the distance of the power transmission shaft, the gear transmission assembly is suitable for staggered shaft transmission with various space sizes, and the gear transmission assembly 5 is independently made into a whole, so that the applicability is high.

The fixing support of the gear transmission component 5 is an L-shaped support which is a fixing part of the gear transmission component 5, the side surface of the fixing support is fixed on the shell 14 of the gear transmission component 5, and the bottom surface of the fixing support is arranged on the rack.

The output shaft guide assembly 7 shown in fig. 4 mainly comprises a guide support 23, a thrust ball bearing 22 and a nylon sleeve 24, wherein the guide support 23 is connected to a frame and is internally provided with a cylindrical hole, one end of the guide support is provided with the nylon sleeve 24 and is axially positioned by a second hole through an elastic retainer ring 25, the other end of the guide support is provided with the thrust ball bearing 22, and a bearing race of the guide support is supported by a compression spring 8.

The output shaft guide assembly 7 provides a guide effect for the power output shaft 3, is composed of a guide support 23, a thrust ball bearing 22, a nylon sleeve 24 and a circlip for a hole, and is integrally installed on the rack. The flat plate part of the guide support 23 is in contact connection with the machine frame, the middle of the rectangular block part is a cylindrical through hole, a thrust ball bearing 22 and a nylon sleeve 24 are respectively installed at two ends of the through hole, an output shaft sequentially penetrates through the thrust ball bearing 22 and the nylon sleeve 24, the nylon sleeve 24 is axially positioned by an inner boss of the support and an elastic retainer ring for holes, and the thrust ball bearing 22 is axially positioned by the inner boss of the support and the compression spring 8.

The compression spring 8 is sleeved on the power output shaft 3, two ends of the compression spring are tightly pressed by a shaft collar of the output shaft and a seat ring of the thrust ball bearing 22, when the power output shaft 3 moves axially, the compression spring 8 is compressed, meanwhile, the output end of the output shaft moves and enters the butt joint matching hole, when the use is finished, the compression spring 8 restores to the original length, the output end of the output shaft is separated from the butt joint matching hole, and the power output is finished.

As shown in fig. 5, the main body of the handheld speed reducer assembly 9 is a speed reducer 26, an input connection plate 27 and an output connection plate 28 are respectively connected to an input flange and an output flange of the speed reducer 26, and then connected together by a connection shaft 29 to serve as a handheld handle, a power butt joint 30 is mounted on an output shaft of the speed reducer, wherein the power butt joint 30 is in a regular hexagonal prism shape, and the power butt joint 30 is fixed by a set screw 31, wherein a circular hole is formed below the output connection plate 28, and a positioning screw 34 penetrates through the circular hole and is connected to a rack to position the whole assembly.

The handheld speed reducer assembly 9 is an external power applying assembly and comprises a speed reducer 26, an input connecting plate 27, an output connecting plate 28, a connecting shaft 29, a rotary rocking handle 33, a rocking handle shaft 32, a power butt joint 30 and a positioning screw 34, wherein the input connecting plate 27 and the output connecting plate 28 are respectively connected to an input flange and an output flange of the speed reducer 26 and then connected together through the connecting shaft 29 to serve as a handheld handle, the power butt joint 30 is installed on an output shaft of the speed reducer 26, the power butt joint 30 is in a regular hexagonal prism shape, when the handheld speed reducer assembly is used, the power butt joint 30 is inserted into a regular hexagonal prism hole in the input end of the power input shaft 2, the rocking handle is rotated, and torque is transmitted to the power butt joint 30, the power input shaft 2 and the power output shaft 3 from the rocking handle in sequence and finally transmitted to a driving assembly.

The specific implementation is as follows:

when the device is used, firstly, the power butt joint 30 of the hand-held reducer component 9 is aligned to the input interface of the power input shaft 2, the rotating handle 33 is shaken to align and insert the hexagonal head with the hexagonal hole, then the hand-held reducer component 9 is axially pushed to drive the power input shaft 2 to axially move, the push plate 4 drives the power output shaft 3 to axially move, at the moment, the shaft sections of the power input shaft 2 and the power output shaft 3 which are provided with the guide flat keys 10 completely enter the key grooves of the shaft sleeve 17, the spring 8 is in a compressed state, the power output shaft 3 is pushed to the interface of the driving component, the rotating handle 33 is continuously shaken to align and insert the hexagonal head of the power output shaft 3 with the hexagonal hole of the driving component, then the positioning screw 34 passes through the round hole below the output connecting plate 28 and is screwed into the machine frame, the hand-held reducer component 9 is fixed through two-point fixing, and then the rotating handle 33 is shaken, the device works normally and transmits power from the handle to the driving component.

After the use, the positioning screw 34 is firstly loosened, the compression spring 8 is immediately restored to the original length and pushes the power output shaft 3, then the power input shaft 2 is pushed back to the initial position through the push plate 4, then the handheld speed reducer assembly 9 is pulled out, and the use process of the whole power transmission device is completed.

The whole power transmission device is simple in structure, high in applicability and fast to use, can be quickly connected during use, can be quickly separated after use is completed, can be used as a set of auxiliary manual power transmission device, can be used as a standby when the automatic function of a machine is lacked, and cannot be too overstaffed to influence the automatic operation of the whole machine.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a but manual power transmission device of quick connect separation which characterized in that: comprises a power transmission component and a hand-held reducer component (9) used for driving the power transmission component;

the power transmission assembly comprises a power input shaft (2), a gear transmission assembly (5) and a power output shaft (3), the output end of the power input shaft (2) is connected with the gear transmission assembly (5), the input end of the power output shaft (3) is connected with the gear transmission assembly (5), the input end of the power input shaft (2) is provided with a jack, a butt joint matched with the jack is arranged on the handheld speed reducer assembly (9), and the handheld speed reducer assembly (9) is connected with the power input end.

2. A quick connect disconnect manual power transmission device as defined in claim 1 wherein: the input end of the power input shaft (2) penetrates through the input shaft guide sleeve (1), the input shaft guide sleeve (1) is installed on the rack, the handheld speed reducer assembly (9) comprises a power butt joint (30), and the power butt joint (30) penetrates through the outer wall of the rack and then is connected with the jack in a matched mode.

3. A quick connect disconnect manual power transmission device as defined in claim 1 wherein: gear drive subassembly (5) are including shell (14), enclosing cover (15), form inside cavity after shell (14) and enclosing cover (15) lock installation, inside cavity installs two sets of axle sleeves (17), deep groove ball bearing (16) are all installed at the both ends of every group axle sleeve (17), driving gear (18) are installed to one of them group axle sleeve (17) outer wall, driven gear (19) are installed to another group axle sleeve (17) outer wall, driving gear (18) and driven gear (19) meshing, install gear drive subassembly fixed bolster (6) on shell (14), gear drive subassembly fixed bolster (6) are installed in the frame.

4. A quick-connect disconnect manual power transmission device as defined in claim 3 in which: all be equipped with annular protruding on every group axle sleeve (17), still install first hole circlip (21) on every group axle sleeve (17), two gears are installed respectively between annular protruding and first hole circlip (21) that correspond, and two gears rely on parallel key (20) with axle sleeve (17) that correspond to transmit the moment of torsion.

5. The manual power transmission device capable of being quickly connected and disconnected according to claim 4, wherein: the inner rings of the two groups of shaft sleeves (17) are provided with guide flat keys (10) and keyways, the output end of power input is provided with the guide flat keys (10), the input end of a power output shaft (3) is provided with the guide flat keys (10), the output end of the power input shaft (2) is connected with the shaft sleeve (17) provided with a driving gear (18), and the input end of the power output shaft (3) penetrates through the shaft sleeve (17) provided with a driven gear (19) and then is connected with the power input shaft (2) through a push plate (4).

6. The quick-connect disconnect manual power transmission device of claim 5, further comprising: the push plate (4) is provided with a through hole, a copper sleeve (13) is installed in the through hole, the input end of the power output shaft (3) penetrates through the copper sleeve (13) and then is connected with a round nut (11), a stop washer (12) for the round nut is installed between the round nut (11) and the push plate (4), an annular groove is formed in the power input shaft (2), the bottom of the push plate (4) is provided with an arc-shaped groove corresponding to the groove, and the bottom of the supporting plate is inserted into the groove.

7. A quick connect disconnect manual power transmission device as defined in claim 6 wherein: still install output shaft direction subassembly (7) on power output shaft (3), output shaft direction subassembly (7) are including guide bracket (23), the inside cavity that is equipped with of guide bracket (23), the cavity both ends of guide bracket (23) are equipped with annular boss, thrust ball bearing (22) are installed to one of them end of cavity, nylon cover (24) are installed to the other end, circlip (25) are used in the second hole, nylon cover (24) one end top is tight on annular boss, the other end is spacing with circlip (25) are used in the second hole.

8. A quick connect disconnect manual power transmission device as defined in claim 7 wherein: the thrust ball bearing (22) shaft collar is tightly pressed on the annular boss, the seat ring is limited by the compression spring (8), the compression spring (8) is sleeved on the power output shaft (3), one end of the compression spring (8) is tightly pressed on the shaft collar of the power output shaft (3), and the other end of the compression spring is tightly pressed on the thrust ball bearing (22).

9. A quick connect disconnect manual power transmission device as defined in claim 8 wherein: the handheld speed reducer assembly (9) comprises a speed reducer (26), an input connecting plate (27) is connected onto an input flange of the speed reducer (26), an output connecting plate (28) is connected onto the output flange, the input connecting plate (27) is connected with the top of the output connecting plate (28) through a connecting shaft (29), a power butt joint (30) is installed on an output shaft of the speed reducer (26), the power butt joint (30) is in a regular hexagonal prism shape, the power butt joint (30) is fixed onto the output shaft of the speed reducer (26) through a set screw (31), a round hole is formed in the lower portion of the output connecting plate (28), a positioning screw (34) is installed in the round hole, and the positioning screw (34) is connected onto a rack;

the input shaft of the speed reducer (26) is connected with a shaking rotating handle, the shaking rotating handle comprises a shaking handle shaft (32) and a rotating shaking handle (33), the rotating shaking handle (33) is installed on the shaking handle shaft (32), and the shaking handle shaft (32) is inserted into the input end of the speed reducer (26).