GB2607719A

GB2607719A - Adjustable squeeze roller type hose pump

Info

Publication number: GB2607719A
Application number: GB2206270.7A
Authority: GB
Inventors: Zhang Lixin; Wang Wendong; Ma Xiao
Original assignee: Shihezi University
Current assignee: Shihezi University
Priority date: 2021-05-02
Filing date: 2022-04-29
Publication date: 2022-12-14
Anticipated expiration: 2042-04-29
Also published as: GB202206270D0; CN113062852A; GB2607719B; CN113062852B

Abstract

An adjustable squeeze roller peristaltic hose pump comprises a hydraulic rotary joint 3 supplying oil to hydraulic adjusting mechanisms each composed of a cylinder 14 and piston 11 arranged around a semi-hollow shaft 12, a support 18 supporting a squeeze roller 8 via a bearing 15 and a central shaft 9 through the roller. Triangular plates 16 are arranged either side of the rollers, each plate comprising adjusting holes 17 and being fixed to the semi-hollow shaft. A hollow end of the semi-hollow shaft is connected to the hydraulic rotary joint, and the hydraulic rotary joint comprises an oil inlet 2 and an oil outlet 1. In operation, oil pressure in the semi-hollow shaft may be adjusted by the oil inlet or outlet of the hydraulic rotary joint such that an extending length of the pistons is adjusted to change an interference between the rollers and the hose. The adjusting holes in the triangular plates enable the supports to reciprocate. A solid end of the hollow shaft may be connected to a motor.

Description

ADJUSTABLE SQUEEZE ROLLER TYPE HOSE PUMP

TECHNICAL FIELD

100011 The present disclosure relates to the field of machinery, in particular an adjustable squeeze roller type hose pump.

BACKGROUND ART

100021 With the continuous development of agricultural technology, the liquid fertilizer, as a new type of fertilizer, has been widely used due to its low production cost, high fertilizer efficiency, easy absorption, significant cost saving and yield increase, convenient and rapid fertilization mode, and the ability to add trace elements missing in the soil according to the soil testing and fertilization program during the application process. The hose pump in the prior art is suitable for the industries such as sewage treatment and paper making, and there are few hose pumps applied to the agricultural field. In the working process of the hose pump, the rotor is in continuous friction with the rubber hose, and the interference magnitude of the hose squeezed by the squeeze roller cannot be adjusted according to the conveyed liquids with different densities and different outlet pressures, thus the service life of the rubber hose is shortened. Moreover, as the rubber hose is difficult to replace, there is an urgent need for an adjustable squeeze roller type hose pump that can be achieved according to different liquid densities and different outlet pressures.

SUMMARY

100031 An objective of the present disclosure is to provide an adjustable squeeze roller type hose pump which is mainly used for conveying some liquid.

100041 The technical solution for achieving the present disclosure is as follows: an adjustable squeeze roller type hose pump includes a hydraulic rotary device, a bearing housing, a hollow shaft, hydraulic adjusting devices, squeeze rollers, triangular plates, and a U-shaped plate.

100051 First, one end of the hydraulic rotary device is connected to the rotating hollow shaft, and the other end of the hydraulic rotary device is provided with an oil inlet and an oil outlet, thus facilitating to adjust oil pressure in the hollow shaft and effectively preventing a connecting part of the hydraulic rotary device and the shaft from oil leakage.

100061 Second, the bearing housing is fixed to a box body side plate to fix the hollow shaft.

100071 Third, the hollow shaft is a semi-hollow shaft, a solid end of the hollow shaft is connected to a motor, and a hollow end of the hollow shaft is connected to the hydraulic rotary device, and the hollow shaft is provided with three holes to be connected to the adjusting devices, thus providing sufficient pressure while guaranteeing the rotation of the hollow shaft.

100081 Fourth, the hydraulic adjusting devices each are composed of a piston and a cylinder body, and capable of moving up and down by the provided pressure.

100091 Fifth, a bearing and a shaft are arranged in each squeeze roller, thus the friction force between the squeeze roller and the hose as well as the shaft can be effectively reduced when the hose is squeezed.

100101 Sixth, the triangular plates are used for fixing the squeeze rollers and each are provided with adjusting holes, thus an axial force born by each hydraulic adjusting device can be effectively reduced, and the damage is reduced.

100111 Seventh, the U-shaped plate is used for fixing the hose to guarantee that the hose does not shift when subjected to the force.

100121 Throughout the description and claims of this specification, the words "comprise" and "contain" and variations of the words, for example "comprising" and "comprises", mean "including but not limited to', and do not exclude other components, integers or steps. Moreover the singular encompasses the plural unless the context otherwise requires: in particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise.

100131 Preferred features of each aspect of the invention may be as described in connection with any of the other aspects. Within the scope of this application it is expressly intended that the various aspects, embodiments, examples and alternatives set out in the preceding paragraphs, in the claims and/or in the following description and drawings, and in particular the individual features thereof, may be taken independently or in any combination. That is, all embodiments and/or features of any embodiment can be combined in any way and/or combination, unless such features are incompatible.

BRIEF DESCRIPTION OF THE DRAWINGS

100141 One or more embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: 100151 FIG. 1 is an axonornetric diagram of an adjustable squeeze roller type hose pump of the present disclosure, in which a part of a second box body side plate is removed to expose internal structures.

100161 FIG. 2 is an axonometric view of the adjustable squeeze roller type hose pump of the present disclosure, in which a part of a second box body side plate is not removed.

100171 FIG. 3 is a schematic diagram of a structure of a hydraulic adjusting device. 100181 FIG. 4 is a schematic diagram of a structure of a semi-hollow shaft.

100191 FIG. 5 is a schematic diagram of a structure of a triangular plate.

DETAILED DESCRIPTION OF THE EMBODIMENTS

100201 The following describes the technical solutions and structures of the present disclosure with reference to the accompanying drawings of the specification, thus facilitating those skilled in the art to understand.

100211 As shown in FIG 1 and FIG 2, an adjustable squeeze roller type hose pump comprises a hollow shaft 12, bearing housings 13, a hydraulic rotary joint 3, and a first box body side plate 4. Preferably, the hollow shaft 12 is a semi-hollow shaft. The bearing housings are located at the two ends of the hollow shaft and are fixed onto the box body side plates; the left side of the hollow shaft is connected to the hydraulic rotary joint 3, and the hydraulic rotary joint 3 comprises an oil inlet and an oil outlet. The first box body side plate 4, a U-shaped plate 6 and a second box body side plate 7 are connected together, with the U-shaped plate 6 sandwiched between the first box body side plate 4 and the second box body side plate 7. The box body side plate 4 and the second box body side plate 7 are fixed to the U-shaped plate 6. A hose fixing device 5 is arranged on the U-shaped plate 6, and the U-shaped plate 6 and the hose fixing device 5 are used for fixing the hose jointly, thus preventing the hose from lateral movement. The hollow shaft is connected with cylinder bodies 14 and pistons 11, which form hydraulic adjusting devices. The hydraulic adjusting devices each are provided with a support 18 to support a squeeze roller 8, the squeeze roller is connected to a central shaft, and the central shaft 9 fixed onto triangular plates 16 using adjusting nuts 10. The triangular plates each are provided with adjusting holes 17, which allow the whole squeeze device to move, and effectively reduce the axial shear stress of the hydraulic adjusting mechanism composed of the cylinder body 14 and the piston 11, thereby prolonging the service life, and guaranteeing the stable operation of the hose pump.

100221 Now, the working principle is described below.

100231 A Liquid Conveying Function 100241 A motor is used for providing power, the motor is connected to the semi-hollow shaft 12 through a coupling, and the motor drives the hollow shaft 12 to rotate. The hollow shaft is provided with the hydraulic adjusting device, the support 18, and the squeeze roller 8. The squeeze roller 8 squeezes the hose to implement liquid conveying. As the hose is worn after working for a period of time or liquids conveyed in the hose have different densities, the interference magnitudes of the hose squeezed by the squeeze roller are different, hydraulic oil can be conveyed by the oil inlet 2 of the hydraulic rotary joint 3 to provide pressure, thus adjusting the interference magnitude of the hose squeezed by the whole squeeze device. The oil can be discharged through the oil outlet of the hydraulic rotary joint to release pressure when the hose is dismounted.

100251 The above embodiments are merely illustrative description of the principles of the present disclosure and their efficacy, and are not intended to limit the present disclosure. Such insubstantial improvements made by employing the methodological concept and technical solutions of the present disclosure, or direct application of the inventive concept and technical solutions to other applications without improvements are within the scope of protection of the present disclosure.

Claims

CLAIMS1. An adjustable squeeze roller type hose pump, comprising a hydraulic rotary joint (3), wherein hydraulic adjusting mechanisms each composed of a cylinder body (14) and a piston (11) are arranged on a semi-hollow shaft (12); each hydraulic adjusting mechanism is provided with a support (18), and the support is provided for supporting a squeeze roller, via a bearing (15) and a central shaft (9) arranged in the squeeze roller (8); triangular plates (16) are arranged at two sides of the squeeze roller (8), and the triangular plates (16) each are provided with adjusting holes (17); the triangular plates (16) are fixed onto the semi-hollow shaft (12), a hollow end of the semi-hollow shaft (12) is connected to the hydraulic rotary joint (3), and the hydraulic rotary joint (3) comprises an oil inlet (2) and an oil outlet (1).
2. The adjustable squeeze roller type hose pump according to claim 1, wherein when the pump is in normal operation, oil pressure in the semi-hollow shaft (12) is adjusted by the oil inlet (2) or the oil outlet (1) of the hydraulic rotary joint (3), such that an extending length of the piston (11) which is arranged in the cylinder body (14) and connected to the hollow shaft is adjusted, to change a interference magnitude of the hose squeezed; and the adjusting holes (17) formed in the triangular plates (16) enable the support (18) supporting the squeeze roller (8) to reciprocate.
3. The adjustable squeeze roller type hose pump according to claim 1 or claim 2, wherein the hollow end of the semi-hollow shaft (12) is connected to the hydraulic rotary joint (3), and a solid end of the hollow shaft is connected to a motor