CN218266276U - Large-flow peristaltic pump head - Google Patents

Abstract

The utility model relates to the field of relevant equipment for gas production, in particular to a large-flow peristaltic pump head, which comprises a pump shell, a pressing block and a roller assembly, wherein the roller assembly comprises a main shaft, a roller disc and a roller train; the two roller discs are arranged, a central shaft hole is formed in the center of the disc body, the two roller discs are respectively connected to the main shaft in a rotating mode at intervals through the central shaft hole, a plurality of uniformly distributed circular roller grooves are formed in one disc body, opposite to the two roller discs, the circular roller grooves are sunken into the disc body, the diameter of each circular roller groove is larger than the outer diameter of each roller group, an axle hole is formed in the center of each circular roller groove, each roller group is located between the two roller discs, and the two ends of each roller group are respectively inserted into the two opposite circular roller grooves and are connected to the axle holes in an axle mode. The utility model discloses design into the concavo-convex shape with the gyro wheel dish to adapt to longer gyro wheel, and then provide bigger working face, adapt to thicker hose, realize with bigger flow under the rotational speed, and then can reduce the rotational speed, improve the life of hose.

Description

Large-flow peristaltic pump head

Technical Field

The utility model relates to a peristaltic pump field specifically is a large-traffic peristaltic pump head.

Background

The peristaltic pump is a liquid driving device, which consists of three parts: the device comprises a driver, a pump head and a hose, wherein the driver is provided with a control system and a power system, and the power system generally refers to a driving motor for rotation; the pump head is a power conversion part and mainly comprises a pump shell, a pressing block and an idler wheel assembly, and the hose is in direct contact with a transmission medium.

The flow of the peristaltic pump is influenced by the revolution diameter of a pressure wheel of the peristaltic pump, the inner diameter of a hose, the rotating speed, the viscosity of liquid, the specific gravity of the liquid, the suction lift, the lift and the temperature of the liquid. The same type of pump head can be suitable for hoses of one or more specifications, and different hose specifications are mainly embodied in inner diameter and wall thickness. Generally, a pump head is suitable for a hose with a wall thickness, so that the pump head can adapt to a thick hose and is in direct relation to a working surface, and the wider the working surface is, the more hose specifications can be applied. The wider the working face is, the larger the representative pump head volume is, and the larger flow rate of the peristaltic pump head with the same volume is realized, which is always a difficult problem and a research and development direction of the industry.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-traffic peristaltic pump head, the design has special-shaped gyro wheel assembly, utilizes the maximize with the space to the hose of adaptation thicker specification realizes the purpose that small but flow is big.

In order to achieve the above object, the utility model provides a following technical scheme:

a large-flow peristaltic pump head comprises a pump shell, a pressing block and a roller assembly, wherein the roller assembly comprises a main shaft, a roller disc and a roller group; the utility model discloses a rolling wheel assembly, including main shaft, gyro wheel dish, two, gyro wheel dish is set up to two, and open at disk body central authorities has central shaft hole, two the gyro wheel dish passes through central shaft hole is spaced rotation respectively and is connected on the main shaft, two be equipped with a plurality of evenly distributed's circular gyro wheel groove on the disk body of gyro wheel dish one side in opposite directions, circular gyro wheel groove is sunken to the disk body, and its diameter is greater than the external diameter of gyro wheel group, open at the center of circular gyro wheel groove has the coupling hole, the gyro wheel group is located two in the middle of the gyro wheel dish, and both ends insert respectively two mutually opposite circular gyro wheel inslot to the coupling is in the coupling hole.

Optionally, a circular bearing groove which is recessed into the disk body is formed in the center of the disk body on the side, where the circular roller groove is not formed, of the roller disk, and a deep groove ball bearing which is sleeved outside the main shaft is arranged in the circular bearing groove.

Optionally, three circular roller grooves are formed in each roller disc, and the roller groups are axially connected in each pair of circular roller grooves;

optionally, the roller group includes a roller shaft, an inner roller, an outer roller, and a small bearing located between two ends of the roller shaft and the outer roller; the roller shaft, the inner roller and the outer roller are sequentially sleeved from inside to outside, the axial length of the inner roller is smaller than that of the outer roller, the small bearings are located at two ends of the inner roller and are sleeved with the roller shaft, and the outer wheel surface of each small bearing is abutted to the inner circular surface of the outer roller.

Optionally, a gasket is further sleeved on the roller shaft outside the small bearing.

Compared with the prior art, the utility model discloses a large-traffic peristaltic pump head has overcome the technological problem that can only realize the flow promotion with the mode that improves the pump head size in the industry tradition, under the unchangeable circumstances of pump head volume, realize the promotion of flow through structural design, it is concrete, design into the concavo-convex shape with the gyro wheel dish, so as to adapt to longer gyro wheel, and then provide bigger working face, adapt to thicker hose, realize with bigger flow under the rotational speed, simultaneously under the prerequisite of having guaranteed the flow, can reduce the rotational speed, and then make the life of hose obtain improving.

Drawings

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

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

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the inner side of the roller plate according to the embodiment of the present invention;

FIG. 4 is a schematic view of the outer side of a roller disc according to an embodiment of the present invention;

FIG. 5 is a schematic view of the roller structure according to the embodiment of the present invention;

fig. 6 is an exploded view of fig. 5.

Wherein: 1-main shaft, 2-roller disc, 3-roller group, 4-deep groove ball bearing, 21-central shaft hole, 22-shaft hole, 23-circular roller groove, 24-circular bearing groove, 31-roller shaft, 32-inner roller, 33-outer roller, 34-small bearing and 35-gasket.

Detailed Description

The application provides a large-flow peristaltic pump head.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment is as follows:

the embodiment of the application discloses a large-flow peristaltic pump head, which, together with a driver and a hose, forms a complete liquid peristaltic pump, wherein the driver is a control system and a power system, comprises a control unit and a driving motor, and provides running power for the pump head by adopting the conventional technology in the field; as the main part of this embodiment, the pump head includes a pump housing, a pressing block and a roller assembly; as shown in fig. 1 and 2, the roller assembly comprises a main shaft 1, a roller disc 2, a roller group 3 and a deep groove ball bearing 4;

specifically, as shown in fig. 2, two roller discs 2 are provided, and are respectively rotatably connected to two ends of the main shaft 1, wherein one surface of each roller disc 2 facing each other is defined as an inner side surface, and the back surface is an outer side surface; as shown in fig. 3 and 4, the roller discs 2 are provided with a central shaft hole 21 and a plurality of shaft connection holes 22 uniformly distributed outwards around the central shaft hole 21, preferably, three shaft connection holes 22 are provided, the central shaft hole 21 of each roller disc 2 is provided with a deep groove ball bearing 4, and the two roller discs 2 are respectively rotatably connected to two ends of the main shaft 1 through the deep groove ball bearings 4 and can freely rotate around the main shaft 1; as shown in fig. 2, three roller groups 3 are uniformly distributed between the two roller discs 2 around the axis direction by taking the central connecting line of the two central shaft holes 21 as the axis, and two ends of the roller groups 3 are respectively coupled in the coupling holes 22 of the two roller discs 2; a circular roller groove 23 which is sunken towards the disc body of the roller disc 2 is formed in the inner side surface of the roller disc 2 by taking the shaft connecting hole 22 as the center, the diameter of the circular roller groove 23 is slightly larger than the diameter of the end surface of the roller group 3, the roller group 3 can be accommodated, the axial length of the roller group 3 is increased, and a hose with a larger outer diameter can be extruded; on the outer side surface of the roller disc 2, a circular bearing groove 24 which is sunken towards the disc body of the roller disc 2 is arranged by taking the central shaft hole 21 as the center, and the diameter of the circular bearing groove 24 is directly slightly larger than the outer diameter of the deep groove ball bearing 4 and can accommodate the deep groove ball bearing 4;

as shown in fig. 5 and 6, the roller group 3 includes a roller shaft 31, an inner roller 32, an outer roller 33, and a small bearing 34 between both ends of the roller shaft 31 and the outer roller 33; wherein, the end of the roller shaft 31 is a T-shaped reduced diameter surface for being inserted into the shaft connecting hole 22, the inner roller 32 is sleeved outside the roller shaft 31, and both ends are respectively sleeved with small bearings 34, and the roller shaft 31 outside the small bearings 34 is further sleeved with a gasket 35; the axial length of the outer roller 33 is the sum of the axial lengths of the inner roller 32 and the two small bearings 34, the outer roller 33 is sleeved outside the inner roller 32 and the two small bearings 34, and the inner circular surfaces at the two ends of the outer roller 33 are in surface contact with the small bearings 34, so that the outer roller 33 can freely rotate around the roller shaft 31 under the action of the small bearings 34; and pressure pipe gaps are formed between all the outer rollers 33 of the whole roller group 3 and the pressing blocks.

The technical effects of the embodiment are as follows:

take the KZ35 type pump head of this embodiment as an example, the pump head flow parameter of same specification is the same basically in the trade, and rotational speed 600rpm, flow 11-12L/min, use the utility model discloses applicable thicker specification's hose behind the technique, the flow can reach 17L/min under the 600rpm, and the flow improves to original 140%. The rotating speed can be reduced to 400rpm and reduced by 33.3 percent at the same flow rate, so that the service life of the hose is greatly prolonged.

The components, devices referred to in this application are meant as illustrative examples only and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the drawings. These components, devices may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

In the description of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral with; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the application and to simplify the description, but do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and thus should not be construed as limiting the application.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

It should also be noted that in the apparatus of the present application, the components may be disassembled and/or reassembled. These decompositions and/or recombinations are to be considered as equivalents of the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.

Claims (5)

1. A large-flow peristaltic pump head comprises a pump shell, a pressing block and a roller assembly, and is characterized in that the roller assembly comprises a main shaft (1), a roller disc (2) and a roller group (3); roller disc (2) sets up to two, and disk body central authorities open there are central axis hole (21), two roller disc (2) are passed through central axis hole (21) is spaced rotation respectively and is connected on main shaft (1), two be equipped with a plurality of evenly distributed's circular roller groove (23) on the disk body in roller disc (2) in opposite directions, circular roller groove (23) are sunken to the disk body, and its diameter is greater than the external diameter of roller train (3), open at the center of circular roller groove (23) has coupling hole (22), roller train (3) are located two in the middle of roller disc (2), and both ends insert respectively two relatively in circular roller groove (23) to the coupling is in coupling hole (22).

2. The pump head of the peristaltic pump for high flow rate according to claim 1, wherein a circular bearing groove (24) which is recessed into the disk body is formed in the center of the disk body on the side of the roller disk (2) which is not provided with the circular roller groove (23), and a deep groove ball bearing (4) which is sleeved outside the main shaft (1) is arranged in the circular bearing groove (24).

3. The high-flow peristaltic pump head according to claim 1, wherein three circular roller grooves (23) are provided on each roller disc (2), and the roller groups (3) are journalled in each pair of circular roller grooves (23).

4. A high flow rate peristaltic pump head according to claim 1, 2 or 3, wherein said roller set (3) comprises a roller shaft (31), an inner roller (32), an outer roller (33) and small bearings (34) between the two ends of said roller shaft (31) and said outer roller (33); the roller shaft (31), the inner roller (32) and the outer roller (33) are sequentially sleeved from inside to outside, the axial length of the inner roller (32) is smaller than that of the outer roller (33), the small bearings (34) are located at two ends of the inner roller (32) and are sleeved with the roller shaft (31), and the outer wheel surface of each small bearing is abutted to the inner circular surface of the outer roller (33).

5. The high flow peristaltic pump head according to claim 4, wherein a gasket (35) is further sleeved on the roller shaft (31) outside the small bearing (34).

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