WO2018166445A1

WO2018166445A1 - Rotor shaft of hose pump

Info

Publication number: WO2018166445A1
Application number: PCT/CN2018/078850
Authority: WO
Inventors: 吴俊�
Original assignee: 合肥华运机械制造有限公司
Priority date: 2017-03-13
Filing date: 2018-03-13
Publication date: 2018-09-20

Abstract

A rotor shaft of a hose pump, for achieving of making the position of a roller connected to the shaft adjustable in the radial direction, and for providing an appropriate extruded degree of a hose. The rotor shaft comprises a main shaft (10) and a rotor base (20) which are fixedly connected; a roller support arm (40) and the rotor base (20) are in limiting fit with each other along radial displacement; and the rotor base (20) is provided with at least two installation positions which are adapted to be connected with the roller support arm (40) and symmetrically arranged at intervals in the circumferential direction. The roller support arm can implement displacement on the rotor base in the radial direction and be locked by a locking part to be fixed. The position of the roller support arm can be adjusted as needed, that is to say, the fitting position of the roller and the hose is adjusted, the force that the roller exerts to the hose can be guaranteed, and normal work of the hose can be guaranteed.

Description

Hose pump rotor shaft

Technical field

The present invention relates to a hose pump, and more particularly to an improved structure of a hose pump rotor.

Background technique

The prior art hose pump is widely used in the chemical industry and the like. The basic structure includes a housing and a hose placed in the housing. The rotor bracket driven by the spindle drives the roller to squeeze the hose to pump the medium. During the working process, the degree of rolling of the roller, that is, the deformation of the hose, has special requirements, which is closely related to the pumping flow rate and the material of the hose. This requires the roller to be displaced in the radial direction to ensure the hose. The degree of squeezing; in addition, in the early, middle and late stages of use, because the elasticity of the hose changes, it is urgent for the roller to be adjusted in the radial position to obtain the appropriateness of the roller rolling hose. Technical issues that need to be addressed.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hose pump rotor shaft that facilitates the position of the roller associated with the shaft in the radial direction and allows the hose to be squeezed to a moderate degree.

In order to achieve the above object, the present invention adopts the following technical solution: a hose pump rotor shaft, the rotor shaft includes a fixedly connected main shaft and a rotor seat, and a radial displacement limit fit is formed between the roller bracket arm and the rotor seat. At least two mounting positions on the rotor seat are used to connect the roller bracket arms and the mounting positions are symmetrically spaced along the circumferential direction.

Due to the above technical solution, the roller bracket arm can be displaced in the radial direction on the rotor seat and locked by the locking member, so that the position of the roller bracket arm can be adjusted when needed, that is, Adjust the position of the roller and the hose, so as to ensure the strength of the hose to ensure the normal operation of the hose.

DRAWINGS

Figure 1 is a perspective view of the first embodiment;

Figure 2 is a right side view of Figure 1;

3, 4, and 5 are perspective views of the second embodiment;

Figure 6 is a perspective view showing the state of use of the present invention;

7, 8, and 9 are perspective structural views of the first embodiment of the multi-pump according to the present invention;

Figure 10 is a schematic view showing the state of use of the first embodiment of the multi-pump;

Figure 11 is a perspective structural view showing a second embodiment of the multi-pump of the present invention;

Figure 12 is a schematic view showing the state of use of the second embodiment of the multi-pump.

detailed description

In the hose pump rotor shown in FIGS. 1-4, the hose pump rotor shaft includes a fixedly coupled main shaft 10 and a rotor seat 20, and a radial displacement limit fit is formed between the roller bracket arm 40 and the rotor base 20. At least two mounting positions on the rotor base 20 are used to connect the roller carrier arms 40 and the mounting positions are symmetrically spaced apart in the circumferential direction.

The main shaft 10 and the rotor base 20 can be independently processed and fixed in a separate structure. The motor drives the main shaft 10 to rotate, and the rotor base 20 rotates synchronously to drive the roller support arm 40 and the roller 30 connected thereto. When the roller 30 rotates, the intermittent contact and the rolling pressure hose realize the task of pumping the medium. Since the roller bracket arm 40 and the rotor base 20 form a radial displacement limit fit, the roller 30 can be adjusted in the radial direction of the rotor as needed to ensure the strength of the roller 30 rolling the hose. The pumping efficiency of the hose under normal operating conditions, which can increase the service life of the hose.

In order to achieve the limit-oriented guiding of the radial movement fit, there are two basic schemes, that is, the rotor seat 20 can be selected to have a groove shape or a square shape. The following specific instructions:

Embodiment 1

The rotor seat 20 is formed by a groove 21 formed by a bottom plate 21 and two side plates 22 disposed on opposite sides thereof. The bottom plate 21 is fixed to the main shaft 10, and the groove length direction of the groove on the rotor base 20 and the main shaft 10 The radial direction is the same. In this scheme, the slotted structure is selected as the guiding constraint of the limit fit, which is not only simple in structure, but also advantageous in assembly operation.

The inner section of the roller bracket arm 40 is located in the slot cavity of the rotor base 20 and the two form a radially moving fit. The roller bracket arm 40 and the bottom plate 21 of the rotor base 20 and/or the side plate 22 are provided with connecting bolts. The 50 constitutes a locking connection, the outer end of the roller carrier arm 40 being located outside the outer end of the slot cavity of the rotor seat 20. When the adjustment roller carrier arm 40 is in the proper position, it is locked and fastened by the connecting bolt 50, ensuring that the position of the roller 30 is stable.

In order to fit the rotor seat 20 of the slot structure described above, the roller bracket arm 40 is in the shape of a strip, and the inner side surface of the roller bracket arm 40 is fitted to the inner surface of the bottom plate 21, and the roller bracket arm is attached. The two sides of the plate 40 are in contact with the inner surface of the side plate 22 of the rotor base 20, and a strip-shaped hole 41 is formed in the surface of the roller support arm 40, and the longitudinal direction of the strip-shaped hole 41 is consistent with the radial direction. A connection hole 211 is defined in the plate surface of the bottom plate 21, and the strip hole 41 corresponds to the position of the connection hole 211 and is connected to the link bolt 50.

In the above solution, the roller bracket arm 40 and the groove bottom and the groove wall of the rotor base 20 are configured to fit together, that is, a three-face contact type matching between the two, leaving a movement adjustment in the radial direction to ensure the rotor. The realization of dynamic balance.

Preferably, the two roller support arms 40 are symmetrically arranged about the main shaft 10, the outer surface of the roller support arm 40 is provided with a projection 42, and the adjustment screw is disposed between the projections 42 of the two roller support arms 40. 60. The above solution is premised on the fact that the upper limit groove of the roller bracket arm 40 is a straight groove, which is convenient for processing and convenient adjustment, in particular, the protrusion 42 is arranged to arrange the screw 60 to allow the screw 60 and the bolt of the connecting bolt 50. It is in the avoidance position and can realize the stepless adjustment of the spacing between the roller support arms 40, so as to achieve the optimal roller 30 pressure of the roller.

Preferably, the mounting position is evenly arranged in the circumferential direction at an angle of intervals of 180, 120, 90, 72, and 60 by 2 to 6. The choice of several installation locations depends on the characteristics of the media and the pumping flow.

One end of the main shaft 10 is fixedly connected to the rotor base 20, and the other end is overhanging, and the overhanging end is connected to the power shaft. The overhanging section of the main shaft 10 is located on the side of the bottom plate 21 opposite to the groove type area. . This configuration facilitates the mounting of the rotor shaft and the mounting and adjustment of the roller bracket arm 40.

In order to facilitate the observation of whether the adjustment meets the requirement of the displacement amount, a scale or a marking scale 23 is provided on the rotor base 20. Preferably, a scale 23 is provided on the edge of the side plate 22 of the rotor base 20 at the notch, and the projection 42 has The scale 421 is marked, and the scale 23 is arranged adjacent to the mark scale 421. The corresponding arrangement of the above-mentioned scale 23 and the marking scale 421 can also be provided when the hose pump is assembled, that is, the hose is first arranged in the pump casing and the pipe end is fixed, and at this time, since there is no squeeze of the roller 30 Pressure, the hose can be installed very conveniently, whether the rear mounting of the rotor or the first installation, the roller bracket arm 40 is first adjusted to the approximate position, that is, the roller 30 is adjusted to the initial position of the installation, in the initial position of the installation. The roller 30 has no interference or substantially no interference with the hose. After the hose is installed, the position of the roller bracket arm 40 on the rotor seat 20 is adjusted, and the corresponding positions of the scale 23 and the marking scale 421 are observed, which is convenient. It is determined whether the roller 30 has reached the design position.

Embodiment 2

The difference between this embodiment and the first embodiment lies in the form of the rotor seat 20, that is, the rotor seat 20 is a slat arranged evenly spaced along the circumference of the main shaft 10 and the longitudinal direction of the slat and the radial direction of the main shaft 10. Consistently, the cross section of the rotor base 20 perpendicular to its longitudinal direction is a non-circular cross section. Preferably, the rotor seat 20 has a square cross section perpendicular to its length.

The roller bracket arm 40 which is coupled with the square cross section of the rotor seat 20 may be provided with a slot or a square tube and the rotor seat 20 to form a limit guiding fit for displacement in the radial direction, and a locking mechanism is also adopted between the two. The parts can be locked and fastened.

The above is the basic structure of a single stage or single pump. However, the hose pump is a hose that cooperates with a plurality of rollers on the rotor bracket. This type of structure is called a single stage pump, and the pumping efficiency is determined.

The invention also provides a multi-stage hose pump rotor shaft, that is, a rotor shaft drives the roller on the axially spaced multi-stage rotor bracket to cooperate with the corresponding hose to form a multi-stage or multi-stage pump. By setting at least two sets of rotors, respectively, matched with the hoses provided at the corresponding positions, the pumping efficiency can be significantly improved under the condition that the structural structure is basically unchanged and the number of devices is constant, and the single-stage pump is updated to multi-stage or multi-link. Pump.

Referring specifically to FIGS. 7-12, at least two mounting positions on the rotor base 20 are used to connect the roller bracket arms 40 and the mounting positions are symmetrically spaced apart in the circumferential direction to form a group of rotors, and the rotor seats 20 are spaced apart in the axial direction. To at least one set of rotors.

As a preferred embodiment, the following description is based on the structure of a two-stage or double hose pump, that is, the rotor seat 20 includes first and second rotor seats 20a, 20b, first and second rotor seats 20a, The first and second roller support arms 40a, 40b and the first and second roller wheels 30a, 30b are disposed in the respective 20b, and the first and second roller support arms 40a, 40b are axially spaced and arranged perpendicular to each other.

By adopting the above two sets of rotor structures, the pumping efficiency can be improved and the stability of the spindle 10 can be ensured.

The main shaft 10 and the rotor base 20 can be independently processed and fixed in a separate structure, and the motor drives the main shaft 10 to rotate, and the rotor base 20 rotates synchronously to drive the first and second roller support arms 40a connected thereto. 40b and the first and second rollers 30a, 30b rotate, and the first and second rollers 30a, 30b rotate intermittently, and the rolling hose realizes the task of pumping the medium. Since the roller bracket arm 40 and the rotor base 20 form a limit fit along the radial displacement, the displacement adjustment of the first and second rollers 30a, 30b along the radial direction of the rotor can be adjusted as needed to ensure the first and second The rollers 30a, 30b roll the strength of the hose to make the pumping efficiency in the normal working state of the hose, which can improve the service life of the hose. For the specific structure, refer to the applicant's prior disclosure of the application.

In order to properly arrange the two sets of rotors, there are two basic schemes, which are described in detail below:

Embodiment 1

1, 2, 3, and 4, the groove-shaped area of the first rotor base 20a surrounded by the bottom plate 21 and the opposite side plates 22 thereof constitutes the mounting position of the first roller support arm 40a, the bottom plate 21 is fixedly coupled to the main shaft 10, and the second rotor base 20b includes inner and outer double-sided groove-shaped seats. The slot of the double-sided groove of the base body is perpendicular to the longitudinal direction and the inner slot is opposite to the side plate 22 of the first rotor seat 20a. The slots formed are aligned and integrally joined by a connector 23, and the outer slotted region of the second rotor seat 20b constitutes the mounting position of the second roller bracket arm 40b. In the above solution, the rotor seat 20 is constructed by using a component and then fixedly connected. The above solution is convenient for selecting between a single-stage or two-stage pump. If necessary, the second rotor seat 20b is basically a single-stage pump after being removed. Structure. It is easy to change a single stage to two levels if needed.

Implementation plan two

5, 6, the groove-shaped area of the first rotor base 20a surrounded by the bottom plate 21 and the opposite side plates 22 thereof constitutes the mounting position of the first roller bracket arm 40a, and the bottom plate 21 and the spindle 10 The second flange seat 20b is formed by the outwardly extending flange card slot 24 at the slot edge of the side plate 22, and the slot length direction of the flange card slot 24 is opposite to the slot length of the first rotor seat 20a. vertical.

Different from the actual one, the rotor seat 20 is a monolithic structure, and the precision of the positioning surface is ensured when integrally processed, and the structure of the rotor seat 20 itself is relatively simple.

Claims

A hose pump rotor shaft, characterized in that the rotor shaft comprises a fixedly connected main shaft (10) and a rotor seat (20), and the roller support arm (40) and the rotor seat (20) are radially displaced. In the limit fit, at least two mounting positions on the rotor seat (20) are used to connect the roller bracket arms (40) and the mounting positions are symmetrically spaced in the circumferential direction.
The hose pump rotor shaft according to claim 1, wherein said rotor seat (20) is formed by a groove type region surrounded by a bottom plate (21) and side plates (22) provided on opposite sides thereof. a mounting position of the wheel bracket arm (40), the bottom plate (21) is fixedly coupled to the main shaft (10), the groove length direction of the groove on the rotor seat (20) and the radial direction of the main shaft (10) Consistent.
The hose pump rotor shaft according to claim 1, wherein said rotor seat (20) is a slat that is evenly spaced along the circumference of the main shaft (10) and the length direction of the slat and the main shaft (10) The radial direction is uniform, and the cross section of the rotor base (20) perpendicular to the longitudinal direction thereof is a non-circular cross section.
A hose pump rotor shaft according to claim 2 or 3, wherein said mounting position is evenly arranged in the circumferential direction at an angle of intervals of 180, 120, 90, 72 and 60 by 2 to 6.
A hose pump rotor shaft according to claim 3, wherein said rotor seat (20) has a square cross section perpendicular to its longitudinal direction.
The hose pump rotor shaft according to claim 1 or 2 or 3, wherein the rotor base (20) is provided with a scale or a marking scale (23), and the bottom surface of the bottom plate 21 is provided with a connecting hole (211). ).
A hose pump rotor shaft according to claim 1 or 2 or 3, wherein one end of the main shaft (10) is fixedly connected to the rotor base (20), and the other end is overhanging and the overhanging end and the power shaft Connected, the overhanging section of the main shaft (10) is located on the side of the bottom plate (21) opposite the grooved area.
The hose pump rotor shaft according to claim 2, wherein at least two mounting positions on the rotor base (20) are used for connecting the roller bracket arms (40) and the mounting positions are symmetrically spaced apart in the circumferential direction to form a The group of rotors, the rotor seats (20) are spaced apart from each other in the axial direction to at least one set of rotors.
The hose pump rotor shaft according to claim 8, wherein said rotor seat (20) comprises first and second rotor seats (20a, 20b), first and second rotor seats (20a) And 20b) respectively arranging the first and second roller support arms (40a, 40b) and the first and second roller wheels (30a, 30b), and the first and second roller support arms (40a, 40b) are axially spaced and mutually Vertically arranged.
A hose pump rotor shaft according to claim 8 or 9, wherein the first rotor base (20a) is formed by a groove-shaped area surrounded by a bottom plate (21) and side plates (22) provided on opposite sides thereof. a mounting position of the first roller bracket arm (40a), the bottom plate (21) is fixedly coupled to the main shaft (10), and the second rotor seat (20b) includes inner and outer double-sided groove-shaped seats, and the seat body thereof The groove of the double-sided groove is perpendicular to the longitudinal direction and the inner notch is aligned with the notch formed by the side plate (22) of the first rotor seat (20a) and is integrally connected by the connecting member (23), and the second rotor seat (20b) The outer grooved region constitutes the mounting position of the second roller carrier arm (40b).
An 8 or 9 hose pump rotor shaft according to claim, wherein the first rotor seat (20a) is formed by a grooved area surrounded by a bottom plate (21) and side plates (22) provided on opposite sides thereof. a mounting position of the first roller bracket arm (40a), the bottom plate (21) is fixedly coupled to the main shaft (10), and the edge of the slot of the side plate (22) has an outwardly extending flanged card slot (24) The second rotor base (20b) is formed, and the groove length direction of the flange groove (24) is perpendicular to the groove length direction of the first rotor base (20a).