CN110721755A

CN110721755A - Fast rotatory eggshell trompil centre gripping protection device of accuse

Info

Publication number: CN110721755A
Application number: CN201911139020.6A
Authority: CN
Inventors: 范维林; 张贵祥; 李长林
Original assignee: Tianjin Hope Industry and Trade Co Ltd
Current assignee: Tianjin Hope Industry and Trade Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-01-24

Abstract

The invention provides a speed-controlled rotary eggshell opening clamping and protecting device, a transmission shaft body arranged on a shaft rod bearing in a fixed stand, a clamping and protecting frame with an upper protecting ring and a side protecting tool arranged at the top of the transmission shaft body, and a tensioning flange and a locking bolt for clamping and protecting a clamped eggshell to be stably placed at the upper part of the transmission shaft body, a driven umbrella wheel in the middle of the transmission shaft body is meshed with a driving umbrella wheel arranged on a motor long shaft of a stepping motor on the upper surface of the fixed stand, the upper side of the stepping motor is connected with a rotating speed knob for controlling the rotating speed of the stepping motor to drive the transmission shaft body and the clamped eggshell on the upper part of the transmission shaft body to rotate at different rotating speeds, an external protecting cover is arranged on the upper plane of a stand of the fixed stand through a protecting cover bolt, and a shock-absorbing foot pad is arranged at the bottom of the fixed, thereby obtaining the standardized embryo allantoic membrane exposure scientific research and application of the egg test product.

Description

Fast rotatory eggshell trompil centre gripping protection device of accuse

Technical Field

The invention relates to a clamping and protecting device for opening a hole in an eggshell by rotating at a controlled speed.

Background

Since scientific researches such as opening, observation and dissection of eggshells of egg test products of birds, reptiles or poultry are required in more and more scientific researches such as medicine, zoology and bioengineering, the eggshells of the egg test products are ensured to be stable and safe in the operations, so as to obtain standardized egg test products for scientific researches and application experiments, for example, inoculation culture researches such as virus and vaccine or drug experiments are carried out by using chick embryo allantoic membrane, scientific research experiment operations such as opening, observation and dissection of the eggshells of egg test products of a large number of birds, reptiles or poultry are required, the former experiment operations are all that an experimenter simply holds the eggshells of the egg test products with one hand or places the eggshells in a simple protective tool for opening, observing and dissecting, and the eggshells of the egg test products are not clamped smoothly when the inner membrane and embryo tissues are very soft and tender due to the hard eggshells The eggshell cannot be stably and safely clamped, the inner membrane and embryo tissue of the eggshell cannot be easily controlled and protected, a certain technical difficulty is carefully required for manual operation in each step of operation for preventing eggshell breakage, the technical requirement on manual operation is higher, the perfect consistency, scientific standardization and nonstandard damage rate is difficult to achieve, the manual operation consumes great time and labor, the scientific experiment operation is influenced to a certain extent, operators are easily polluted, particularly, the large-batch egg test product opening, observation and dissection operation tasks cannot be finished in a qualified mode in large-batch scientific research experiments, the current large-batch scientific research experiments and the increasingly refined sample quality requirements cannot be met, the quality and safety of the scientific experiment operation are influenced to a certain extent, the deep development of related researches is hindered, and in order to overcome the difficulties, the problems that birds in large-batch scientific research and experiments are difficult to control and protect the inner membrane and embryo tissues are basically, The eggshell of the egg test product of reptiles or poultry is difficult to stabilize the difficult problem of safe centre gripping in the operation of trompil, observation and dissection to the needs that the eggshell is difficult to be carried out in scientific research and application experiment satisfied big batch scientific experiment and the sample quality requirement that more and more refines are carried out to the egg test product that obtains standardization, research and development a accuse speed is rotatory eggshell trompil centre gripping protection device has just become necessary and urgent need.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a clamping and protecting device for opening an eggshell by rotating an eggshell at a controlled speed, which can ensure the stability and safety of the eggshell of egg test products during the operations of opening an eggshell, observing and performing scientific research experiments on the eggshells of egg test products of birds, reptiles or poultry, can stably clamp and safely protect the clamped eggshells, meets the requirements of large-scale scientific experiments and increasingly refined sample quality requirements, and ensures the normal progress of the experiments and the reliability of experimental data.

In order to achieve the above objects, the present invention provides a clamping and protecting device for opening a hole in an eggshell by rotating at a controlled speed, comprising a transmission shaft body mounted on a shaft bearing in the middle of the inside of a fixed stand, a clamping and protecting frame with an upper guard ring and a side guard is mounted on the top of a sliding shaft on the upper portion of the transmission shaft body, and the clamped eggshell is stably held and protected on the upper portion of the transmission shaft body by a tensioning flange and a locking bolt, a driven bevel wheel in the middle of the transmission shaft body is engaged with a driving bevel wheel mounted on a long motor shaft of a stepping motor on the upper surface of the fixed stand, a rotation speed knob is connected to the upper side of the stepping motor for controlling the stepping motor to drive the transmission shaft body and the clamped eggshell, which is clamped and protected by the clamping and protecting frame, to rotate at different rotation speeds as required, an external shield is, Mechanical accidents and damages can be caused when the driven umbrella wheel and the stepping motor operate, and the whole device is stabilized by the damping foot pads at the bottom of the fixing stand.

The invention has the beneficial effects that: the clamped eggshell can be stably clamped and safely protected in scientific research operations such as opening, observing and dissecting the eggshell of the egg test product, and the stability and safety of the eggshell of the egg test product are ensured, so that the standardized embryo allantois membrane of the egg test product is obtained for exposure scientific research and application experiments.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention.

In the figure:

1. damping foot pad 2, stand inner cavity 3, bearing outer sleeve 4, stand upper cavity 5, shield bolt 6, shield flange 7, driven umbrella wheel

8. Umbrella wheel bolt 9, shield upper surface 10, shield upper hole 11, tensioning flange 12, flange main shaft 13 and round wide edge

14. Tensioning support rod 15, side protective tool 16, side rudder vertical plate 17, guard ring soft pad 18, support leg sleeve hole 19 and clamping protective frame

20. Guard ring shell 21, clamped eggshell 22, opening position 23, guard ring spring 24, guard ring support leg 25 and upper guard ring

26. Guard plate soft cushion 27, side arc plate 28, vertical plate round hole 29, bracket soft cushion 30, egg bottom bracket 31 and sliding shaft lever

32. Tension spring 33, locking bolt 34, straight rod spindle 35, driving umbrella wheel 36, motor long shaft 37 and rotating speed knob

38. External shield 39, step motor 40, motor support 41, motor bolt 42, transmission shaft 43 and shaft bearing

44. The bearing inner sleeve 45, the bearing bolt 46, the stand lower cavity 47, the threaded shaft rod 48 and the fixed stand.

Detailed Description

The invention is described with reference to the accompanying drawings and examples.

As shown in the attached drawings, the invention provides a speed-controlled rotary eggshell opening clamping protection device, which comprises a transmission shaft body 42 arranged on a shaft rod bearing 43 in the middle inside a fixed stand 48, wherein the fixed stand 48 is a cylindrical hollow workbench made of hard and corrosion-resistant materials, a through round hole-shaped stand inner cavity 2 is arranged in the middle of the fixed stand, the upper side of the stand inner cavity 2 is a stand upper cavity 4 with the same axle center and large inner diameter, a shaft rod bearing 43 is tightly matched and arranged in the stand upper cavity 4, the inner diameter size of the stand upper cavity 4 is required to be tightly matched with the size of a bearing outer sleeve 3 of the shaft rod bearing 43, the height size of the stand upper cavity 4 is required to be larger than the height size of the bearing outer sleeve 3 of the shaft rod bearing 43 so as to be convenient for installing a bearing bolt 45, the lower side of the stand inner cavity 2 is a stand, a same shaft rod bearing 43 is also tightly fitted and installed in the lower cavity 46 of the stand, the inner diameter of the lower cavity 46 of the stand is required to be tightly fitted and installed with the size of the bearing outer sleeve 3 of the shaft rod bearing, the height of the lower cavity 46 of the stand is also required to be larger than the height of the bearing outer sleeve 3 of the shaft rod bearing so as to be convenient for installing a bearing bolt 45, and a threaded shaft rod 47 of the transmission shaft body 42 is tightly fitted and installed in the bearing inner sleeves 44 of the two shaft rod bearings 43; the transmission shaft body 42 is a transmission part which is arranged perpendicular to the fixed stand 48 and is made of rigid metal materials, a plurality of elements are matched on the straight rod main shaft 34 to form the transmission part, the top of a sliding shaft rod 31 on the upper part of the transmission shaft body 42 is provided with a clamping protective frame 19 with an upper protective ring 25 and a side protective tool 15, the clamped eggshell 21 is clamped and protected by a tensioning flange 11 and a locking bolt 33 to stably stay on the upper part of the transmission shaft body 42, a driven umbrella wheel 7 in the middle of the transmission shaft body 42 is meshed with an active umbrella wheel 35 on a motor long shaft 36 of a stepping motor 39 arranged on the upper surface of the fixed stand 48, the uppermost part of the transmission shaft body 42 is a section of sliding shaft rod 31 with a smooth outer surface, an egg bottom bracket 30 of the clamping protective frame 19 is fixedly arranged on the top of the sliding shaft rod 31, the tensioning flange 11 for clamping the protective frame 19 is arranged, the upper part of the threaded shaft rod 47 is fixedly provided with a driven bevel wheel 7 through two bevel wheel bolts 8; the lower part of the threaded shaft rod 47 penetrates through the bearing inner sleeves 44 of two shaft rod bearings 43 arranged in a fixed stand 48, the threaded shaft rod 47 is fixed on the upper and lower ends of the two shaft rod bearings 43 by bearing bolts 45, the whole transmission shaft body 42 is also fixedly fixed on the fixed stand 48 to rotate by the bearing bolts 45 and the shaft rod bearings 43 which are fastened on the threaded shaft rod 47, one side of the upper surface of the fixed stand is fixedly provided with a stepping motor 39 by a motor bracket 40 and a motor bolt 41, a motor long shaft 36 of the stepping motor 39 is fixedly provided with an active umbrella wheel 35 by two umbrella wheel bolts 8, the active umbrella wheel 35 and a passive umbrella wheel 7 fixedly arranged on the threaded shaft rod 47 are meshed to drive the transmission shaft body 42 and the upper clamping protective frame 19 and the clamped eggshell 21 to rotate, the upper part of the stepping motor 39 is connected with a rotating speed knob 37, and, the device is used for controlling the stepping motor 39 to drive the transmission shaft body 42 and the clamped eggshell 21 clamped and protected by the clamping protective frame 19 at different rotating speeds according to requirements; the clamping protective frame 19 is a mechanical device which is composed of a plurality of components and is used for stably clamping and safely protecting a clamped eggshell 21, the bottom of the clamping protective frame 19 is provided with an egg bottom bracket 30 in a pit shape upwards and is firmly arranged at the top of a sliding shaft rod 31 of a transmission shaft body 42, the upper side of the egg bottom bracket 30 is covered with a thin and flexible bracket cushion 29 to stably place the clamped eggshell 21, the shape and the size of the egg bottom bracket 30 and the bracket cushion 29 can be different according to the shape and the size of different egg types, the upper side of the placed clamped eggshell 21 is sleeved with an upper protective ring 25 with a protective ring spring 23 and a plurality of protective ring supporting legs 24 at one side, each supporting leg protective ring 24 of the upper protective ring 25 is sleeved with a side steering upright plate 16 and a side supporting leg round hole 28, the upper protective ring 25 is a circular ring-shaped sleeve belt which is made of external flaky rigid materials and lining flexible materials and is sleeved at the upper part of the clamped, the protective ring is sleeved below an opening position 22 of a clamped eggshell 21, the main body is a protective ring shell 20 which is made of rigid sheet materials and is encircled into a small upper part and a large lower part in a circular shape, a layer of soft protective ring cushion 17 is uniformly installed in the protective ring shell 20 and can protect the clamped eggshell 21 clamped in an upper protective ring 25, an upper protective ring spring 23 is installed in the middle of the protective ring shell 20 in a disconnecting mode so that the protective ring shell 20 has elasticity for proper expansion and tightening, a plurality of protective ring supporting legs 24 which are obliquely and upwards extended are installed on the protective ring shell 20 at equal intervals, an upper side circular arc plate 27 can be firmly sleeved through supporting leg sleeve holes 18 in a side protective tool 15, and the whole clamping protective frame 19 is matched for stably clamping and safely protecting the clamped eggshell; the side protector 15 is a component which is made by compounding an external flaky rigid material and a lining flexible material and is sleeved on the side edge of the clamped eggshell 21, the side protector 15 is composed of a side arc plate 27 of an internal composite guard plate cushion 26 and a side steering upright plate 16, the side arc plate 27 is oval and is made into an inner arc bending shape according to the shape of the side wall of the clamped eggshell 21 and stably and properly attached on the outer part of the clamped eggshell 21, a layer of soft guard plate cushion 26 is uniformly arranged in the side arc plate 27 to protect the clamped eggshell 21 clamped in the side arc plate 27, a circular support leg sleeve hole 18 is arranged on the upper part of the side arc plate 27 and can be firmly sleeved on a guard ring support leg 24 of an upper guard ring 25, the side steering upright plate 16 is made into a fish fin shape and is vertically arranged in the middle of the outer part of the side arc plate 27, a circular upright hole 28 is arranged at the tip part of a fish fin of each side steering upright plate 16, a bar-shaped tensioning support bar 14 with, a tensioning spring 32 is movably arranged below each tensioning support rod 14, and the tensioning support rods 14 are connected with the circular wide edge 13 of the tensioning flange 11 sleeved on the sliding shaft rod 31 on the upper part of the transmission shaft body 42 through the tensioning springs 32; the tensioning flange 11 is sleeved on the sliding shaft rod 31 at the upper part of the transmission shaft rod 42 and can slide up and down, the flange main shaft 12 of the tensioning flange 11 is provided with a locking bolt 33, and after the tensioning flange 11 is pressed downwards and the locking bolt 33 is fixed, the whole clamping protective frame 19 clamps and protects the clamped eggshell 21 from different sides so as to carry out the opening operation and scientific research on the eggshell of the egg test product without damaging the micro-incision of the inner membrane; an outer shield 38 is fixed on the plane above a fixed stand 48 through a shield bolt 5, the outer shield 38 is a protective shield body made of firm corrosion-resistant rigid material, the whole shield is a thin shell and made into an inverted basin-shaped structure, a shield flange 6 at the lower side is hermetically connected with the plane above the stand of the fixed stand 48 through the shield bolt 5 and is on the same axis with an inner cavity 2 of the stand, a basin-shaped shell is arranged on the upper side of the shield flange 6 to surround the driving umbrella wheel 35, the driven umbrella wheel 7 and the stepping motor 39, a shield upper hole 10 is arranged in the center of the upper part 9 of the shield of the basin-shaped shell of the outer shield 38, the diameter of the shield upper hole is matched with the outer diameter of a threaded shaft rod 47 of the transmission shaft body 42, a micro gap is reserved between the diameter of the shield upper hole and the outer diameter of the basin-shaped shell, the transmission shaft body 42 is not influenced, and the mechanical accident, the whole device for balancing and stabilizing the shock absorption foot pads 1 is symmetrically and uniformly arranged on the lower surface of the bottom of the fixed stand 48; the whole device can stably clamp and safely protect the clamped eggshell, and ensures that the standardized embryo allantoic membrane of the egg test product can be stably and safely obtained for exposure, scientific research and application in the opening operation of fine incisions without damaging the inner membrane on the eggshell of the egg test product.

Example (b):

when in use, firstly, egg test articles of birds, reptiles or poultry for experiment are prepared, the opening position 22 of the eggshell of the egg test article is determined and marked, the clamped eggshell 21 is put into the clamping protective frame 19 by hand, the upper protective ring 25 is firstly sleeved under the opening position 22 of the clamped eggshell 21, a layer of soft protective ring cushion 17 uniformly arranged inside the protective ring shell 20 just protects the clamped eggshell 21 clamped in the upper protective ring 25, the protective ring spring 23 arranged in the middle of the protective ring shell 20 is disconnected to ensure that the protective ring shell 20 has elasticity for proper expansion and tightening, thus, the clamped eggshell 21 can easily pass through the upper guard ring 25 and can be clamped tightly without damage, a plurality of guard ring supporting legs 24 which are obliquely extended upwards are arranged on the guard ring shell 20 at equal intervals, the upper side circular arc plate 27 is firmly sleeved through the supporting leg sleeve hole 18 on the side protector 15, and the whole clamping protective frame 19 is matched to stably clamp and safely protect the clamped eggshell 21; the side protection tool 15 consists of a side arc plate 27 and a side rudder vertical plate 16 of an inner composite guard plate soft cushion 26, the inner arc of the side arc plate 27 is bent to be stably and properly attached to the outer part of the side of the clamped eggshell 21, a layer of soft guard plate soft cushion 26 uniformly installed in the side arc plate 27 protects the clamped eggshell 21 clamped in the side arc plate 27, a layer of thin and soft bracket soft cushion 29 is covered on the upper edge of a nest-shaped upward egg bottom bracket 30 at the bottom of the clamping protection frame 19 to be stably placed on the clamped eggshell 21, then the tensioning flange 11 is pressed downwards and the locking bolt 33 is fixed, so that the whole clamping protection frame 19 clamps and protects the clamped eggshell 21 from different sides so as to carry out scientific research operations such as hole opening, observation, dissection and the like on the eggshell of the egg type test product without damaging the micro-incision of the inner membrane; the rotating speed knob 37 connected with the upper side of the stepping motor 39 is adjusted according to the experiment requirement, the rotating speed knob 37 can adjust different rotating speeds, the rotating speed knob is used for controlling the stepping motor 39 to rotate at a determined rotating speed, an operation program is started, the stepping motor 39 starts to rotate, the driving umbrella wheel 35 fixedly arranged on the motor long shaft 36 through two umbrella wheel bolts 8 and the driven umbrella wheel 7 fixedly arranged on the threaded shaft rod 47 are also meshed with the driving shaft body 42 and the clamped eggshell 21 clamped and protected by the clamping protective frame 19 to rotate at the determined rotating speed along with the rotation of the stepping motor 39, then scientific research operations such as opening, observation and dissection and the like of micro incisions without damaging the inner membrane can be carried out on the clamped eggshell which is stably clamped and safely protected, the external shield 38 surrounds the driving umbrella wheel 35, the driven umbrella wheel 7 and the stepping motor 39, and mechanical accidents and damages can be prevented when the driving umbrella wheel 35, the driven umbrella wheel 7 and the stepping motor 39 are operated, the safety of the experiment is ensured; after the operation is finished, the operation procedure is withdrawn, then the locking bolt 33 is loosened to enable the tensioning flange 11 to be restored to the original position, the clamped eggshell 21 which is finished with the operation is taken out from the clamping protective frame 19, the operations can be repeatedly carried out, scientific research operations such as eggshell hole opening, observation, dissection and the like of a large number of egg test products of birds, reptiles or poultry can be continuously carried out, the clamped eggshell can be stably clamped and safely protected, the eggshell stability and safety of the egg test products are guaranteed, and accordingly the standardized embryo allantois membranes of the egg test products are obtained to carry out exposure scientific research and application experiments.

Claims

1. The utility model provides a fast rotatory eggshell trompil centre gripping protection device of accuse, characterized by: comprises a transmission shaft body (42) arranged on a shaft rod bearing (43) in the middle inside a fixed stand (48), a clamping and protecting frame (19) with an upper protecting ring (25) and a side protecting tool (15) is arranged at the top of a sliding shaft rod (31) at the upper part of the transmission shaft body (42), and a clamped eggshell (21) is stably clamped and protected on the upper part of the transmission shaft body (42) through a tensioning flange (11) and a locking bolt (33), a driven umbrella wheel (7) at the middle part of the transmission shaft body (42) is meshed with a driving umbrella wheel (35) on a motor long shaft (36) of a stepping motor (39) arranged on the upper surface of the fixed stand (48), a rotating speed knob (37) is connected on the stepping motor (39) and is used for controlling the stepping motor (39) to drive the transmission shaft body (42) and the clamped eggshell (21) which is clamped and protected by the clamping and protecting frame (19) at the upper part to rotate at different, the plane is installed outside guard shield (38) through guard shield bolt (5) on the stand of fixed stand (48) and prevents that probably to cause mechanical accident and damage when initiative umbrella wheel (35), passive umbrella wheel (7) and step motor (39) operate, and there is shock attenuation callus on the sole (1) fixed stand (48) bottom to stabilize whole device.

2. The device of claim 1, wherein the device comprises: the clamping protection frame (19) is a mechanical device which consists of a plurality of components and is used for stably clamping and safely protecting a clamped eggshell (21), a nest-shaped upward egg bottom bracket (30) is arranged at the bottom of the clamping protection frame (19) and is firmly installed at the top of a sliding shaft rod (31) of a transmission shaft body (42), the clamped eggshell (21) is stably placed by covering a layer of thin and flexible bracket cushion (29) on the egg bottom bracket (30), the shapes and the sizes of the egg bottom bracket (30) and the bracket cushion (29) can be different according to the shapes and the sizes of different egg types, a side protection ring spring (23) and an upper protection ring (25) with a plurality of protection ring support legs (24) are sleeved on the placed clamped eggshell (21), a side protection ring support leg (24) with a side vertical plate (16) and a side protection tool (15) with a vertical plate (16) and a vertical plate (28) are sleeved on each protection ring support leg (24) of the upper protection ring (25), the side protection device is characterized in that a tensioning support rod (14) is movably mounted in a vertical plate round hole (28) of each side rudder vertical plate (16) of the side protection tool (15), a tensioning spring (32) is movably mounted below each tensioning support rod (14), the tensioning support rods (14) are connected and sleeved on a round wide edge (13) of a tensioning flange (11) through the tensioning springs (32), the tensioning flange (11) is sleeved on a sliding shaft rod (31) at the upper part of a transmission shaft rod (42) and can slide up and down, a locking bolt (33) is arranged on a flange main shaft (12) of the tensioning flange (11), and after the tensioning flange (11) is pressed downwards and the locking bolt (33) is fixed, the whole clamping protection frame (19) clamps and protects the clamped eggshells (21) from different sides so as to carry out opening operation and scientific research application on the eggshells of egg test articles without damaging micro incisions of the inner.

3. The device of claim 1, wherein the device comprises: the upper guard ring (25) is a circular ring-shaped sleeve belt which is made of external flaky rigid materials and lining flexible materials in a composite mode and is sleeved on the upper portion of a clamped eggshell (21), the upper guard ring is sleeved below an opening position (22) of the clamped eggshell (21), the main body is a guard ring shell (20) which is made of rigid sheet materials and is formed into a circular ring shape with a small upper portion and a large lower portion, a layer of soft guard ring cushion (17) is uniformly installed in the guard ring shell (20) and can protect the clamped eggshell (21) clamped in the upper guard ring (25), an upper guard ring spring (23) is installed in the middle of the guard ring shell (20) in a disconnecting mode to enable the guard ring shell (20) to have elasticity of proper expansion and tightening, a plurality of guard ring support legs (24) which are arranged at equal intervals and extend obliquely upwards are firmly sleeved with an upper side circular arc plate (27) through support leg sleeve holes, the whole clamping protective frame (19) is matched to carry out stable clamping and safe protection on the clamped eggshell (21).

4. The device of claim 1, wherein the device comprises: the side protector (15) is a part which is made by compounding an external flaky rigid material and an inner lining flexible material and is sleeved on the side of the clamped eggshell (21), the side protector (15) consists of a side arc plate (27) of an inner side composite guard plate cushion (26) and a side steering vertical plate (16), the side arc plate (27) is oval and is made into an inner arc bending shape according to the shape of the side wall of the clamped eggshell (21) and stably and properly lodged on the outer side of the clamped eggshell (21), a layer of soft guard plate cushion (26) is uniformly arranged in the side arc plate (27) to protect the clamped eggshell (21) clamped in the side arc plate (27), a circular support leg sleeve hole (18) is formed in the upper part of the side arc plate (27) and can be firmly sleeved on a guard ring support leg (24) of an upper part guard ring (25), the side steering vertical plate (16) is made into a fish fin shape and is vertically arranged in the middle of the outer part of the side arc plate (27), a round vertical plate round hole (28) is formed in the fin tip of the side rudder vertical plate (16), a rod-shaped tensioning support rod (14) with shackles at two ends is installed after penetrating through the vertical plate round hole (28), and the tensioning support rod (14) is connected with a round wide edge (13) of a tensioning flange (11) which is sleeved on a sliding shaft rod (31) on the upper portion of a transmission shaft body (42) through a tensioning spring (32).

5. The device of claim 1, wherein the device comprises: the transmission shaft body (42) is a transmission part which is arranged perpendicular to a fixed stand (48) and is made of rigid metal materials, the transmission part is formed by matching a plurality of elements on a straight rod main shaft (34), the uppermost part of the transmission shaft body (42) is a section of sliding shaft rod (31) with a smooth outer surface, an egg bottom bracket (30) with a clamping protective frame (19) is fixedly arranged on the top of the sliding shaft rod (31), the middle part of the sliding shaft rod (31) is provided with a tensioning flange (11) with the clamping protective frame (19), the lower part of the transmission shaft body (42) is a section of threaded shaft rod (47) with a threaded outer surface, the lower part of the threaded shaft rod (47) penetrates through bearing inner sleeves (44) of two shaft rod bearings (43) arranged in the fixed stand (48), the threaded shaft rod (47) is fixed by bearing bolts (45) at the upper end and the lower end of the two shaft rod bearings (43), and the whole transmission shaft body (42) is also fixed by the Is firmly fixed on a fixed stand (48) to rotate, a driven umbrella wheel (7) is fixedly arranged on the upper part of a threaded shaft rod (47) through two umbrella wheel bolts (8), and the driven umbrella wheel (7) rotates with a clamping protective frame (19) which is horizontally arranged on the upper part of a stepping motor (39) on the fixed stand (48) and a clamped eggshell (21).

6. The device of claim 1, wherein the device comprises: the external shield (38) is a protective shield body made of firm corrosion-resistant rigid material, the whole shield is an inverted basin-shaped structure made of a thin shell, the lower shield flange (6) is hermetically connected with the upper plane of the stand of the fixed stand (48) through a shield bolt (5) and is positioned on the same axis with the stand inner cavity (2), the upper edge of the shield flange (6) is provided with a basin-shaped shell to surround the driving umbrella wheel (35), the driven umbrella wheel (7) and the stepping motor (39), a shield upper hole (10) is arranged in the center of the shield upper surface (9) of the basin-shaped shell of the outer shield (38), the diameter of the transmission shaft body (42) is matched with the outer diameter of a threaded shaft rod (47) of the transmission shaft body (42) to leave a micro gap, so that the transmission shaft body (42) is not influenced when rotating, and mechanical accidents and damages caused by the operation of the driving umbrella wheel (35), the driven umbrella wheel (7) and the stepping motor (39) are prevented.

7. The device of claim 1, wherein the device comprises: the fixed stand (48) is a cylindrical hollow workbench made of hard and corrosion-resistant materials, a through round hole-shaped stand inner cavity (2) is formed in the middle of the fixed stand, a stand upper cavity (4) with the same axle center and large inner diameter is arranged above the stand inner cavity (2), a shaft rod bearing (43) is tightly installed in the stand upper cavity (4) in a matched mode, the inner diameter of the stand upper cavity (4) is required to be tightly matched with the size of a bearing outer sleeve (3) of the shaft rod bearing (43), the height of the stand upper cavity (4) is required to be larger than the height of the bearing outer sleeve (3) of the shaft rod bearing (43) so as to be convenient for installing a bearing bolt (45), a stand lower cavity (46) with the same axle center and large inner diameter is arranged below the stand inner cavity (2), and the same shaft rod bearing (43) is also tightly installed in the stand lower cavity (46) in, the inner diameter of the stand lower cavity (46) is required to be closely matched with the size of the bearing outer sleeve (3) of the shaft rod bearing, the height of the stand lower cavity (46) is also required to be larger than the height of the bearing outer sleeve (3) of the shaft rod bearing so as to be convenient for installing a bearing bolt (45), a threaded shaft rod (47) of a transmission shaft body (42) is closely matched and installed in the bearing inner sleeves (44) of the two shaft rod bearings (43), the threaded shaft rod (47) is fixed by the bearing bolt (45) at the upper end and the lower end of the two shaft rod bearings (43), the transmission shaft body (42) is firmly fixed on a fixed stand (48) through the fastened bearing bolt (45) and the shaft rod bearing (43) to rotate, a stepping motor (39) is fixedly installed on one side of the upper surface of the fixed stand through a motor support (40) and a motor bolt (41), an active bevel wheel (35) is fixedly installed on a long shaft motor (36) of the stepping motor (39) through, the driving umbrella wheel (35) is meshed with a driven umbrella wheel (7) fixedly mounted on a threaded shaft rod (47) to drive a transmission shaft body (42) and a clamping protective frame (19) on the upper portion and a clamped eggshell (21) to rotate, a stepping motor (39) adjusts different rotating speeds through a rotating speed knob (37) connected to the outside of the stepping motor, an external shield (38) is fixed on a plane above a fixing stand (48) through a shield bolt (5), and the lower surface of the bottom of the fixing stand (48) is symmetrically and uniformly provided with a shock absorption foot pad (1) to balance and stabilize the whole device.