CN211462998U - A counter weight balancing unit for shaking table - Google Patents
A counter weight balancing unit for shaking table Download PDFInfo
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- CN211462998U CN211462998U CN201921606064.0U CN201921606064U CN211462998U CN 211462998 U CN211462998 U CN 211462998U CN 201921606064 U CN201921606064 U CN 201921606064U CN 211462998 U CN211462998 U CN 211462998U
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Abstract
The utility model discloses a counterweight balancing device for a shaking table, which comprises a shaking table body and a counterweight balancing device, wherein the shaking table body is provided with a bottom plate, and the counterweight balancing device comprises an eccentric wheel component and a driving component; the eccentric wheel assembly comprises a large belt wheel and an eccentric wheel; the eccentric wheel is movably connected to a large belt wheel, the large belt wheel is movably mounted on the bottom plate, a balancing weight is arranged on the large belt wheel, and the balancing weight is of a fan-shaped structure; the driving assembly comprises a motor and a small belt pulley; the motor is fixed on the bottom plate; the motor is provided with a motor shaft, and the small belt wheel is fixedly connected with the motor shaft; the small belt wheel is in transmission connection with the large belt wheel through a transmission belt; work as the motor during operation, the motor shaft rotates, drives little band pulley rotates, little band pulley passes through the big band pulley of rotating band drive and rotates, makes the balancing weight follows big band pulley rotates together, the utility model discloses stability is good, and the practicality is strong.
Description
Technical Field
The utility model relates to a medical equipment and laboratory instrument, concretely relates to counter weight balancing unit for shaking table.
Background
The shaking table is an instrument for mixing liquid or solid and liquid in a laboratory, can provide mild and efficient uniform mixing motion, and ensures that an experimental sample is in a shaking or suspending state uniformly and for a long time. The method is mainly used for electrophoresis gel dyeing/decoloring, sample washing, molecular hybridization, immunoprecipitation, protein imprinting, cell culture and the like, and the basic principle is that the liquid in a conical flask or a culture dish is subjected to circumferential oscillation by utilizing the eccentric oscillation effect of an eccentric wheel to fully mix reagents.
Chinese patent (CN103305424A) variable amplitude convolution type cell culture shaking table, comprising: eccentric device, tray, hold ware, base, motor, counter weight, controller, eccentric device installs on the base, and eccentric device includes main eccentric wheel, inferior eccentric wheel, is equipped with the counter weight on main eccentric wheel, the inferior eccentric wheel, and inferior eccentric wheel top is equipped with the tray, the motor passes through transmission to be connected on one of them set of eccentric device, and this set of eccentric device includes: the amplitude-variable wheel is connected to the amplitude positioning plate through the amplitude-variable rod, the upper end of the amplitude-variable wheel is connected to the tray, and the motor is connected with the controller.
The existing shaking table mostly adopts a cylindrical balancing weight and is arranged on the side surface of an eccentric wheel.
The existing shaking table has the following defects: firstly, the weight of the balancing weight of the existing shaking table is not enough; secondly, the prior rocking bed is easy to run under the maximum load state and has poor stability.
The cause is as follows: firstly, because the weight difference between the no-load and the maximum load of the shaking table is very big, the balancing weight with larger weight is needed to balance the shaking table, and the existing shaking table adopts the cylindrical balancing weight, so the space utilization rate is low, and the weight of the balancing weight is not enough. Secondly, current shaking table, the balancing weight is lighter, has only realized the balance under the less state of load, and at the maximum load state, the off centre of gravity is more, can lead to the complete machine shake violent, the running condition appears even.
Therefore, it is necessary to provide a balance weight balancing device for a swing bed with simple structure and good stability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome current shaking table counter weight unreasonable, the violent problem of complete machine shake provides a good counter weight balancing unit who is used for the shaking table of stability, solves the shaking table counter weight not enough and the shaking table operation shake problem.
In order to realize the purpose of the utility model, the utility model discloses a technical scheme realize as follows: a counterweight balancing device for a shaking table comprises a shaking table body and a counterweight balancing device arranged on the shaking table body;
a bottom plate is arranged on the shaking table body, and the counterweight balancing device is arranged on the bottom plate;
the counterweight balancing device comprises an eccentric wheel assembly and a driving assembly which are arranged on the bottom plate; the eccentric wheel assembly is in transmission connection with the driving assembly;
the eccentric wheel assembly comprises a large belt wheel and an eccentric wheel; the eccentric wheel is movably connected to a large belt wheel, the large belt wheel is movably mounted on the bottom plate, a balancing weight is connected to the large belt wheel, and the balancing weight is of a fan-shaped structure;
the driving assembly comprises a motor and a small belt pulley; the motor is fixed on the bottom plate; the motor is provided with a motor shaft, and the small belt wheel is fixedly connected with the motor shaft; the small belt wheel is in transmission connection with the large belt wheel through a transmission belt.
Preferably, a circular through hole is formed in the top of the eccentric wheel, and the circular through hole penetrates through the upper surface and the lower surface of the eccentric wheel in the vertical direction.
Preferably, a connecting shaft is arranged on the large belt pulley, and when the eccentric wheel is connected with the large belt pulley, the connecting shaft penetrates through the circular through hole, so that the eccentric wheel is movably sleeved on the connecting shaft.
Preferably, the motor is fixed on the bottom plate through a mounting bracket, the mounting bracket is fixedly connected with the motor through a screw punching mode, and the mounting bracket is connected with the bottom plate through a plurality of connecting rods, so that the motor is fixedly mounted on the bottom plate.
Preferably, the connecting rods comprise a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively connected to the periphery of the mounting support in a screw punching mode.
Preferably, when the motor works, the motor shaft rotates to drive the small belt wheel to rotate, the small belt wheel drives the large belt wheel to rotate through the rotating belt, and the balancing weight rotates along with the large belt wheel.
Preferably, the minimum distance between the large pulley and the driving component is greater than the thickness of the balancing weight.
Preferably, the balancing weight is fixed on the large belt wheel in a screw punching mode.
Preferably, the eccentric amount of the cradle body during no load is equal to the eccentric amount of the cradle body during maximum load, and the formula that the weight block and the load of the cradle body satisfy is as follows: 2mr1＝Mr2，Wherein m is the weight of the counterweight block, r1Is the distance from the gravity center of the balancing weight to the rotation center, M is 80 percent of the maximum load weight of the shaking table body, r2The distance from the center of gravity of the load to the center of rotation.
Preferably, the device also comprises a rocking disc, and the rocking disc is fixedly connected with the eccentric wheel; a plurality of connecting holes are uniformly formed in the eccentric wheel, and the connecting holes comprise a first connecting hole, a second connecting hole, a third connecting hole and a fourth connecting hole;
preferably, the lower surface of bottom plate is equipped with a plurality of supporting legss, the supporting legs includes first supporting legs, second supporting legs, third supporting legs and fourth supporting legs.
Advantageous effects
Compared with the prior art, the utility model discloses the beneficial effect who gains does: the utility model is provided with a counterweight balancing device, and the counterweight balancing device comprises an eccentric wheel component and the driving component; the eccentric wheel assembly is connected with the driving assembly through a transmission belt; the eccentric wheel assembly comprises a large belt wheel and an eccentric wheel; the eccentric wheel is movably connected to a large belt wheel, the large belt wheel is movably mounted on the bottom plate, and a balancing weight is arranged on the large belt wheel; the eccentric wheel assembly consisting of the balancing weight, the large belt wheel and the eccentric wheel has balanced balancing weight, so that the gravity center of the shaking table body can be reduced, and the whole machine can run more stably. The balancing weight is of a fan-shaped structure; the setting of this structure makes the balancing weight is high to the utilization ratio in space, makes the shaking table body obtains bigger weight easily, improves the stability of shaking table body. The small belt wheel is in transmission connection with the large belt wheel through a transmission belt. The design that the small belt wheel drives the large belt wheel enables the torque of the motor to be reduced, the stress is uniform, and the service life of the motor is prolonged. When the motor works, the motor shaft rotates to drive the small belt wheel to rotate, the small belt wheel drives the large belt wheel to rotate through the rotating belt, the balancing weight rotates along with the large belt wheel, the centrifugal force generated when most of the shaking table bodies are loaded is offset, the stability of the shaking table bodies is enhanced, and the whole machine can stably run.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
the technical characteristics corresponding to the marks in the attached drawings are as follows: 1-shaking table body, 2-bottom plate, 3-eccentric wheel, 4-big belt wheel, 5-balancing weight, 6-motor, 7-small belt wheel, 8-driving belt, 9-mounting bracket, 10-first connecting rod, 11-second connecting rod, 12-third connecting rod, 13-fourth connecting rod, 14-first connecting hole, 15-second connecting hole, 16-third connecting hole, 17-first supporting leg, 18-second supporting leg, 19-circular through hole and 20-connecting shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more fully described, the present invention will be described in further detail with reference to the following embodiments, and obviously, some embodiments of the present invention are described below in the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.
As shown in fig. 1, a counterweight balancing device for a shaking table comprises a shaking table body 1 and a counterweight balancing device arranged on the shaking table body 1, wherein the shaking table body 1 is provided with a bottom plate 2, and the counterweight balancing device is arranged on the bottom plate 2;
as shown in fig. 1, the counterweight balancing device includes an eccentric wheel assembly and a driving assembly mounted on the base plate 2; the eccentric wheel assembly is in transmission connection with the driving assembly.
As shown in fig. 1, the eccentric wheel assembly comprises a large pulley 4 and an eccentric wheel 3; the eccentric wheel 3 is movably connected to a large belt wheel 4, the large belt wheel 4 is movably mounted on the bottom plate 1, and a balancing weight 5 is arranged on the large belt wheel 4; the eccentric wheel assembly consisting of the balancing weight 5, the large belt wheel 4 and the eccentric wheel 3 has balanced balancing weight, so that the gravity center of the shaking table body 1 can be reduced, and the whole machine can run more stably.
As shown in fig. 1, the counterweight 5 has a fan-shaped structure; the setting of this structure makes balancing weight 5 is high to the utilization ratio in space, makes shaking table body 1 obtains bigger weight easily, improves shaking table body 1's stability.
As shown in fig. 1, the drive assembly comprises a motor 6 and a small pulley 7; the motor 6 is fixed on the bottom plate 2; the motor 6 is provided with a motor shaft (not shown in the attached drawings), and the small belt wheel 7 is fixedly connected with the motor shaft;
the small belt wheel 7 is in transmission connection with the large belt wheel 4 through a transmission belt 8. The design that the small belt wheel 7 drives the large belt wheel 4 enables the torque of the motor 6 to be reduced, the stress is uniform, and the service life of the motor 6 is prolonged.
As shown in FIG. 1, a circular through hole 19 is formed in the top of the eccentric wheel 3, and the circular through hole 19 penetrates through the upper surface and the lower surface of the eccentric wheel 3 in the vertical direction. The circular through hole 19 is provided so that the eccentric wheel 3 can be eccentrically rotated.
As shown in fig. 1, a connecting shaft 20 is arranged on the large belt pulley 4, and when the eccentric wheel 3 is connected with the large belt pulley 4, the connecting shaft 20 passes through the circular through hole 19, so that the eccentric wheel 3 is movably sleeved on the connecting shaft 20.
The device also comprises a rocking disc (not shown in the attached drawing), and the rocking disc is fixedly connected with the eccentric wheel 4.
As shown in fig. 1, a plurality of connecting holes are uniformly formed in the eccentric wheel 3, and the connecting holes include a first connecting hole 14, a second connecting hole 15, a third connecting hole 16 and a fourth connecting hole 17; the arrangement of the first connecting hole 14, the second connecting hole 15, the third connecting hole 16 and the fourth connecting hole 17 facilitates the connection of the eccentric wheel 3 with the rocking disc.
As shown in fig. 1, the motor 6 is fixed on the base plate 2 through a mounting bracket 9, the mounting bracket 9 is fixedly connected to the motor 6 through a screw hole, and the mounting bracket 9 is connected to the base plate 2 through a plurality of connecting rods, so that the motor 6 is fixedly mounted on the base plate 2. Specifically, the connecting rods include a first connecting rod 10, a second connecting rod 11, a third connecting rod 12 and a fourth connecting rod 13; the first connecting rod 10, the second connecting rod 11, the third connecting rod 12 and the fourth connecting rod 13 are respectively connected to the periphery of the mounting bracket 9 in a screw punching mode. The arrangement of the first connecting rod 10, the second connecting rod 11, the third connecting rod 12 and the fourth connecting rod facilitates the fixed connection of the mounting bracket 9 and the bottom plate 2, so that the motor 6 is fixedly mounted on the bottom plate 1.
When the motor 6 works, the motor shaft rotates to drive the small belt wheel 7 to rotate, the small belt wheel 7 drives the large belt wheel 4 to rotate through the rotating belt, the balancing weight 5 rotates along with the large belt wheel 4 to counteract centrifugal force generated when most of the shaking table body 1 is loaded, so that the stability of the shaking table body 1 is enhanced, and the whole machine can stably run.
The minimum distance between the large belt wheel 4 and the driving component is larger than the thickness of the balancing weight 5. The arrangement of this structure allows the weight 5 to have enough space to rotate with the large pulley 4.
The balancing weight 5 is fixed on the large belt wheel 4 in a screw punching mode, and the balancing weight 5 can rotate along with the large belt wheel 4 due to the arrangement of the structure.
The above-mentionedThe eccentric volume when shaking table body 1 is unloaded equals the eccentric volume when maximum load, balancing weight 5 with the formula that shaking table body 1's load satisfied is: 2mr1＝Mr2，Wherein m is the weight of the counterweight 5, r1Is the distance from the gravity center of the balancing weight 5 to the rotation center, M is 80 percent of the maximum load weight of the shaking table body 1, r2The distance from the center of gravity of the load to the center of rotation.
As shown in fig. 1, the lower surface of the bottom plate 2 is provided with a plurality of supporting legs, and the supporting legs include a first supporting leg 17, a second supporting leg 18, a third supporting leg (not shown in the drawing), and a fourth supporting leg (not shown in the drawing). The setting of first supporting legs 17, second supporting legs 18, third supporting legs and fourth supporting legs is used for supporting bottom plate 2 avoids simultaneously bottom plate 2 and the plane direct contact who supports can effectively reduce bottom plate 2's wearing and tearing prolong shaking table body 1's life.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A counterweight balancing device for a shaking table is characterized by comprising a shaking table body and a counterweight balancing device arranged on the shaking table body;
a bottom plate is arranged on the shaking table body, and the counterweight balancing device is arranged on the bottom plate;
the counterweight balancing device comprises an eccentric wheel assembly and a driving assembly which are arranged on the bottom plate; the eccentric wheel assembly is in transmission connection with the driving assembly;
the eccentric wheel assembly comprises a large belt wheel and an eccentric wheel; the eccentric wheel is movably connected to a large belt wheel, the large belt wheel is movably mounted on the bottom plate, a balancing weight is connected to the large belt wheel, and the balancing weight is of a fan-shaped structure;
the driving assembly comprises a motor and a small belt pulley; the motor is fixed on the bottom plate; the motor is provided with a motor shaft, and the small belt wheel is fixedly connected with the motor shaft; the small belt wheel is in transmission connection with the large belt wheel through a transmission belt.
2. A counterweight balance device for a rocking bed according to claim 1 wherein:
the top of the eccentric wheel is provided with a circular through hole, and the circular through hole penetrates through the upper surface and the lower surface of the eccentric wheel along the vertical direction.
3. A counterweight balance device for a rocking bed according to claim 2 wherein:
the large belt wheel is provided with a connecting shaft, and when the eccentric wheel is connected with the large belt wheel, the connecting shaft penetrates through the circular through hole, so that the eccentric wheel is movably sleeved on the connecting shaft.
4. A counterweight balance device for a rocking bed according to claim 1 wherein:
the motor is fixed on the bottom plate through a mounting bracket, the mounting bracket is fixedly connected with the motor through a screw punching mode, and the mounting bracket is connected with the bottom plate through a plurality of connecting rods, so that the motor is fixedly mounted on the bottom plate.
5. The counterweight balance device for a rocking bed according to claim 4, wherein:
the connecting rods comprise a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively connected to the periphery of the mounting support in a screw punching mode.
6. A counterweight balance device for a rocking bed according to claim 1 wherein:
when the motor works, the motor shaft rotates to drive the small belt wheel to rotate, the small belt wheel drives the large belt wheel to rotate through the rotating belt, and the balancing weight rotates along with the large belt wheel.
7. A counterweight balance device for a rocking bed according to claim 1 wherein:
the minimum distance between the large belt wheel and the driving component is larger than the thickness of the balancing weight.
8. A counterweight balance device for a rocking bed according to claim 1 wherein:
the balancing weight is fixed on the large belt wheel in a screw punching mode.
9. A counterweight balance device for a rocking bed according to claim 1 wherein:
the eccentric volume of shaking table body when no load equals the eccentric volume when maximum load, the balancing weight with the formula that the load of shaking table body satisfied is: 2mr1＝Mr2Wherein m is the weight of the counterweight block, r1Is the distance from the gravity center of the balancing weight to the rotation center, M is 80 percent of the maximum load weight of the shaking table body, r2The distance from the center of gravity of the load to the center of rotation.
10. A counterweight balance device for a rocking bed according to claim 1 wherein:
the lower surface of bottom plate is equipped with a plurality of supporting legss, the supporting legs includes first supporting legs, second supporting legs, third supporting legs and fourth supporting legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921606064.0U CN211462998U (en) | 2019-09-25 | 2019-09-25 | A counter weight balancing unit for shaking table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921606064.0U CN211462998U (en) | 2019-09-25 | 2019-09-25 | A counter weight balancing unit for shaking table |
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| CN211462998U true CN211462998U (en) | 2020-09-11 |
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| CN201921606064.0U Active CN211462998U (en) | 2019-09-25 | 2019-09-25 | A counter weight balancing unit for shaking table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984825A (en) * | 2022-06-16 | 2022-09-02 | 上海知楚仪器有限公司 | Accurate positioning mechanism of high-speed biological shaking table |
| CN116728557A (en) * | 2023-07-17 | 2023-09-12 | 潍坊京泰新型建材有限公司 | Be used for green printing opacity concrete specialty production facility of low carbon |
-
2019
- 2019-09-25 CN CN201921606064.0U patent/CN211462998U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984825A (en) * | 2022-06-16 | 2022-09-02 | 上海知楚仪器有限公司 | Accurate positioning mechanism of high-speed biological shaking table |
| CN116728557A (en) * | 2023-07-17 | 2023-09-12 | 潍坊京泰新型建材有限公司 | Be used for green printing opacity concrete specialty production facility of low carbon |
| CN116728557B (en) * | 2023-07-17 | 2023-11-28 | 潍坊京泰新型建材有限公司 | Be used for green printing opacity concrete specialty production facility of low carbon |
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