CN108661893A - A kind of peristaltic pump containing knurled shaft - Google Patents

Abstract

The invention discloses a peristaltic pump with a knurled shaft, which belongs to the technical field of fluid pumps and includes a pump head, a hose and a motor. The pump head is composed of a synchronous disc, a knurled shaft, a rotor, and a pump casing. The synchronous disc includes a first synchronous disc and a second synchronous disc. The centers of the first synchronous disc and the second synchronous disc are connected by a cylindrical structure. A synchronous disc and the second synchronous disc are installed on the output shaft of the motor together. One end of the knurled shaft is threaded through the second synchronous disc and is installed on the inner threaded hole on the edge of the first synchronous disc. The other end of the knurled shaft is One end is knurled, and the knurled end of the knurled shaft is riveted on the through hole of the second synchronous disk. The center of the rotor has a through hole matched with the knurled shaft, and the rotor passes through the knurled shaft through the through hole. By setting knurling at one end of the shaft, the parts are constructed more compactly, occupy less space, are small in size, more compact, and have high reliability.

Description

A peristaltic pump with a knurled shaft

technical field

The invention belongs to the technical field of fluid pumps, in particular to a peristaltic pump with a knurled shaft.

Background technique

In today's production and life, we can see the existence of peristaltic pumps everywhere. Because of its simple structure, clean and pollution-free, corrosion resistance, idling, dry running, two-way transportation and other advantages, it is widely used. However, in the present The peristaltic pumps in the prior art all adopt the structure of a smooth shaft and a rotor, so that the internal components of the whole device are not very compact and occupy a lot of space, which makes the volume of the peristaltic pump generally relatively large.

Therefore, how to solve the above problems has become the focus of research by those skilled in the art.

Contents of the invention

The object of the present invention is to provide a peristaltic pump with a knurled shaft, which can effectively solve the disadvantages of the looseness of the above-mentioned components.

The purpose of the present invention is achieved through the following technical solutions:

A peristaltic pump with a knurled shaft, characterized in that it includes a motor, a first synchronous disc, a second synchronous disc, a knurled shaft, and a rotor, the motor includes a motor output shaft, and the edge of the first synchronous disc has an inner There is a through hole at the position corresponding to the inner hole of the second synchronous disc and the inner hole of the first synchronous disc, one side of the second synchronous disc is integrally connected with the first synchronous disc through a central cylindrical connecting rod, and the other side of the second synchronous disc has a A mounting rod fixedly connected to the output shaft of the motor, one end of the knurled shaft is a smooth end, the smooth end of the knurled shaft passes through the through hole of the second synchronous disc, the smooth end of the knurled shaft and the inner hole of the first synchronous disc Universal, the other end of the knurled shaft is riveted on the through hole of the second synchronous disc, the knurled shaft is located in a section of the second synchronous disc with knurling, the rotor is sleeved on the knurled shaft, and the rotor is located on the Between the first sync disc and the second sync disc.

Preferably, there are three knurled shafts and three rotors, which are symmetrically installed between two synchronous discs.

Preferably, the motor has a casing, the casing is composed of a vertical plate and a side plate connected by a vertical connecting rod, the vertical plate is fixedly installed on the motor, and there is a groove on the top of the side plate.

As a preference, a "U"-shaped hose with an upward opening is installed inside the housing, and there are joints with nuts at both ends of the hose, and the bottom of the hose is against the groove of the side plate.

Preferably, there is a platform on the top of the riser, and there are two gaps on the platform corresponding to the two ends of the hose.

Preferably, there are thin tubes with external threads at both ends of the flexible pipe, and the nuts on the external threads clamp the flexible pipe on the notch.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, knurling is provided at one end of the shaft, so that the structure of the parts is more compact, less space is occupied, and the volume is smaller and more compact. During operation, the knurled shaft and the rotor are arranged between two synchronous discs, so that The process in which the motor drives the knurled shaft to rotate, and the knurled shaft drives the rotor to rotate is more stable and highly feasible.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Description of reference signs: 1-motor, 2-hose, 3-knurled shaft, 4-rotor, 5-first synchronous disc, 6-second synchronous disc, 7-side plate, 8-vertical plate, 9- Vertical connecting rod, 10-platform, 101-motor output shaft, 201-joint, 501-cylindrical connecting rod, 601-through hole, 602-installation rod.

Detailed ways

The present invention will be further described below in combination with specific embodiments and accompanying drawings.

Embodiment one

As shown in Figure 1, a kind of peristaltic machine that contains knurled shaft comprises motor 1, first synchronous disk 5, second synchronous disk 6, knurled shaft 3, rotor 4, and described first synchronous disk 5 and second The center of the synchronous disk 6 is integrally connected by a cylindrical connecting rod 501. There is an inner hole on the side of the connecting rod of the first synchronous disk. The second synchronous disk 6 has a through hole 601 corresponding to the inner hole of the first synchronous disk. One end of the knurled shaft 3 is Smooth end, the smooth end of the knurled shaft 3 passes through the through hole of the second synchronous disc, the smooth end of the knurled shaft is connected with the inner hole of the first synchronous disc, the rotor 4 passes through the knurled shaft 3, and the other end of the knurled shaft 3 is riveted Pressed outside the through hole of the second synchronous disc, the knurled shaft 3 is provided with knurling in the inner section of the through hole of the second synchronous disc, and the first synchronous disc 5 and the second synchronous disc 6 are fixedly connected to the motor output shaft 101 through the installation rod 602 Above, the motor 1 rotates to drive the first synchronous disc 5 and the second synchronous disc 6 to rotate, and the rotor 4 on the knurled shaft revolves along with the rotation of the first synchronous disc 5 and the second synchronous disc 6 .

In this embodiment, the synchronous disk is fixedly connected to the output shaft of the motor through the connecting rod 602, the motor rotates to drive the synchronous disk to rotate, the rotor on the knurled shaft revolves with the rotation of the synchronous disk, the rotor is worn on the knurled shaft, and Located between the two synchronous discs, the knurled shaft in the through hole of the second synchronous disc has knurling, which increases the tightness of the components and is more stable during operation.

Embodiment two

As shown in Figure 1, a kind of peristaltic machine that contains knurled shaft comprises motor 1, first synchronous disk 5, second synchronous disk 6, knurled shaft 3, rotor 4, and described first synchronous disk 5 and second The center of the synchronous disk 6 is integrally connected by a cylindrical connecting rod. The first synchronous disk connecting rod side has an inner hole, and the second synchronous disk 6 has a through hole corresponding to the inner hole of the first synchronous disk. One end of the knurled shaft 3 is a smooth end , the smooth end of the knurled shaft 3 passes through the through hole of the second synchronous disc, the smooth end of the knurled shaft is screwed to the inner hole of the first synchronous disc, the rotor 4 passes through the knurled shaft 3, and the other end of the knurled shaft 3 is riveted on Outside the through hole of the second synchronous disc, the knurled shaft 3 is provided with knurling in the inner section of the through hole of the second synchronous disc, and the first synchronous disc 5 and the second synchronous disc 6 are fixedly connected to the motor output shaft 101 through the installation rod 602, The rotation of the motor 1 drives the first synchronous disc 5 and the second synchronous disc 6 to rotate, and the rotor 4 on the knurled shaft revolves with the rotation of the first synchronous disc 5 and the second synchronous disc 6, and the rotor and the knurled shaft have three , evenly installed on the edge between the first synchronous disc and the second synchronous disc.

In this embodiment, three knurled shafts and three rotors are evenly installed between the edges of the two synchronous disks, which can ensure a stable fluid output rate and increase the displacement of the device.

Embodiment Three

As shown in Figure 1, a kind of peristaltic machine that contains knurled shaft comprises motor 1, first synchronous disk 5, second synchronous disk 6, knurled shaft 3, rotor 4, and described first synchronous disk 5 and second The center of the synchronous disk 6 is integrally connected by a cylindrical connecting rod. The first synchronous disk connecting rod side has an inner hole, and the second synchronous disk 6 has a through hole corresponding to the inner hole of the first synchronous disk. One end of the knurled shaft 3 is a smooth end , the smooth end of the knurled shaft 3 passes through the through hole of the second synchronous disc, the smooth end of the knurled shaft is screwed to the inner hole of the first synchronous disc, the rotor 4 passes through the knurled shaft 3, and the other end of the knurled shaft 3 is riveted on Outside the through hole of the second synchronous disc, the knurled shaft 3 is provided with knurling in the inner section of the through hole of the second synchronous disc, and the installation rod 602 of the first synchronous disc 5 and the second synchronous disc 6 is fixedly connected on the motor output shaft 101, and the motor 1 Rotation drives the first synchronous disc 5 and the second synchronous disc 6 to rotate, the rotor 4 on the knurled shaft revolves with the rotation of the first synchronous disc 5 and the second synchronous disc 6, the motor has a casing, and the casing is composed of a vertical plate The vertical connecting rod 9 is composed of a horizontal bar and a vertical bar. One end of the horizontal bar is vertically welded on the vertical plate 8, and one end of the vertical bar is vertically welded in the middle of the horizontal bar. The side plate One end of the vertical rod is fixed on the middle section of the vertical bar, and the vertical plate is fixedly installed on the motor. There is a platform on the top of the vertical plate, and there are two gaps on the platform corresponding to the two ends of the hose. The two ends of the hose have thin tubes with external threads, and the nuts on the external threads Snap the hose over the notch.

In this embodiment, the casing is used to protect the entire peristaltic pump device, and the hose 2 can be stably installed inside the casing. When the motor 1 rotates to drive the synchronous disc to rotate, the rotor 4 revolves and rolls the hose 2 to form a vacuum in the hose. , to achieve a reciprocating adsorption effect, and the operation is safer.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (6)

1. A peristaltic pump with a knurled shaft, characterized in that it includes a motor (1), a first synchronous disc (5), a second synchronous disc (6), a knurled shaft (3), and a rotor (4), The motor (1) includes a motor output shaft (101), the edge of the first synchronous disc (5) has an inner hole, and the position of the second synchronous disc (6) corresponding to the inner hole of the first synchronous disc (5) has a The through hole (601), one side of the second synchronous disc (6) is integrally connected with the first synchronous disc (5) through the central cylindrical connecting rod (501), and the other side of the second synchronous disc is connected with the motor output shaft (101) The fixedly connected installation rod (602), one end of the knurled shaft (3) is a smooth end, the smooth end of the knurled shaft (3) passes through the through hole (601) of the second synchronous disc, the smooth end of the knurled shaft (3) The other end of the knurled shaft (3) is riveted on the through hole of the second synchronous disc (6), and the knurled shaft (3) is located in the second synchronous disc One section is knurled, the rotor (4) is sleeved on the knurled shaft, and the rotor (4) is located between the first synchronous disc (5) and the second synchronous disc (6). 2. A peristaltic pump with knurled shafts according to claim 1, characterized in that: there are three knurled shafts (3) and three rotors (4), which are evenly installed on the edge of the synchronous disc. 3. A peristaltic pump with a knurled shaft according to claim 1, characterized in that: the motor has a casing, and the casing is composed of vertical plates (8) and side plates (7) through vertical connecting rods (9 ) connection, the vertical plate is fixedly installed on the motor (1), and there is a groove on the side plate (7). 4. A peristaltic pump with a knurled shaft according to claim 3, characterized in that: a "U"-shaped hose (2) with an upward opening is installed inside the housing, and there are nuts at both ends of the hose Connector (201) with the hose under the groove against the side plate (7). 5. A peristaltic pump with a knurled shaft according to claim 4, characterized in that: there is a platform (10) on the upper end of the riser (8), and there are two gaps on the platform corresponding to the two ends of the hose. 6. A peristaltic pump with a knurled shaft according to claim 5, characterized in that: the two ends of the hose (2) have thin tubes with external threads, and the nuts on the external threads connect the hose (2) stuck in the notch.