Vertical simple hose pump based on welding process

Abstract

A vertical simple hose pump based on a welding process, comprising a fixed plate (13) having a main shaft (11), the fixed plate (13) being mounted on the main shaft (11). Roller shafts (10) are connec

Description

[0001] The present invention relates to the field of machineries, and in particular, to a welding-based simple upright hose pump. BACKGROUND

[0002] With continuous development of agricultural technology, liquid fertilizer, as a new type of fertilizer, has been widely used due to advantages of low production cost, high fertilizer efficiency, easy to be absorbed, significant effects of reducing cost and increasing yield, convenient and rapid fertilization methods, capability of adding trace elements lacking in soil according to a soil testing and fertilization plan during application, and the like. Hose pumps in the prior art are suitable for industrial industries such as sewage treatment and paper making. There are few hose pumps applied in the field of agriculture, shells of most hose pumps are cast and are difficult to cast, and precision of a process cannot be guaranteed, which results in waste of raw materials. A circular shell of this hose pump is formed by welding extruded steel plates, process of which is simple, and meets manufacturing requirements of most factories. Both a front baffle plate and a rear baffle plate are made of steel plates, and are configured to fix the circular shell. Four bosses are welded to an outer surface of the circular shell on a same side, and two arc-shaped ribs are welded on a lower part of an inner surface, which facilitates fixing a rubber hose, minimizing structural complexity of the hose pump, reducing cost, and meeting requirements of agricultural production. SUMMARY

[0003] An objective of the present invention is to provide a welding-based simple upright hose pump, which is mainly configured to delivery some liquids.

[0004] A technical solution of the present invention is that: a welding-based simple upright hose pump includes a fixed plate with a spindle, rollers, a shell, a front baffle plate, and a rear baffle plate.

[0005] Firstly, an upper feed port and a low discharge port are symmetrically formed in a circular shell. Four bosses are welded to an outer surface of the circular shell on a same side, and two arc-shaped ribs are welded to a lower part of an inner surface, which facilitates fixing rubber hoses.

[0006] Secondly, the front baffle plate and the rear baffle plate are welded to the shell, four holes corresponding to mounting holes for a flange of a gear reducer are formed on the rear baffle plate, and a large hole for locating is formed at a center.

[0007] Thirdly, bearings are mounted on the rollers, roller shafts are mounted on the bearings, the bearings are positioned and clamped by shoulders of the roller shafts and the bosses of the fixed plate.

[0008] Fourthly, the bearings and the shafts are arranged in the rollers, which can effectively reduce frictional force among the rollers, the hoses, and the shafts when the hoses are compressed.

[0009] Fifthly, the bearings are in an interference fit with the rollers, the bearings are in an interference fit with the roller shafts, and the fixed plate is in a transition fit with and is fixed to the roller shafts by welding.

[0010] Sixthly, a motor is connected to the hose pump through a helical gear reducer, upright mounting is adopted, and space occupied by an assembled body is reduced.

[0011] Compared with the prior art, the present invention achieves the following technical effects:

[0012] According to the simple upright hose pump provided by the present invention, liquids with different densities pass through the hoses, and the shell is not made by casting, which avoids common defects and material waste in a casting process, simplifies structure of the pump, reduces weight of the hose pump, upright mounting is adopted, and mounting space is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG. 1 is an isometric view of a welding-based simple upright hose pump of the present invention;

[0014] FIG. 2 is an exploded view of an extrusion device; and

[0015] FIG. 3 is an isometric view of fit among a circular shell, a rear baffle plate, and a base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Technical solutions and structures of the present invention are described below in conjunction with drawings in a specification, so as to facilitate understanding by those skilled in the art.

[0017] As shown in FIG. 1, FIG. 2, and FIG. 3, a welding-based simple upright hose pump includes a circular shell 1, a front baffle plate 9, a rear baffle plate 16, and a base 8. The circular shell 1 is connected to the front baffle plate 9, the rear baffle plate 16, and the base 8 by welding. The rear baffle plate 16 is connected to a helical gear reducer 3. The helical gear reducer 3 is connected to a motor 2. The helical gear reducer 3 is connected to a spindle 11 on a fixed plate 13 with the spindle 11. The spindle 11 is connected to ends of roller shafts 10. Bearings 14 are assembled at both ends of the roller shafts 10. Outer rings of the bearings 14 are matched with rollers 12. Another ends of the roller shafts 10 are connected to the fixed plate 13. The hoses 7 are mounted inside the circular shell 1, and are prevented from moving by arc-shaped ribs 15. Both ends of the hoses 7 are fixed to bosses 17 by fixing brackets 6 through cooperation of bolts 5 and nuts 4.

[0018] Working principle is as follows:

[0019] Liquid delivery function: power is provided by the motor 2, and the motor 2 is connected to the spindle 11 on the fixed plate 13 through the helical gear reducer 3. The motor 2 drives the spindle 11 to rotate. Upper and lower holes are symmetrically formed in the fixed plate 13. The roller shafts 10 are arranged in the holes of the fixed plate 13. The bearings 14 are arranged on the roller shafts 10. The rollers 12 are arranged on the bearings 14. Liquids are delivered by compressing the hoses 7 through the rollers 12. According to the welding-based simple upright hose pump provided by the present invention, liquids with different densities pass through the hoses 7, and the shell is not made by casting, which avoids common defects and material waste in a casting process, simplifies structure of the pump, reduces weight of the hose pump, upright mounting is adopted, and mounting space is saved.

[0020] The above embodiments only exemplarily illustrate principle and effects of the present invention, and are not intended to limit the present invention. Non-substantial improvements made as long as adopting method conceptions and technical solutions of the present invention, or direct applying the conceptions and the technical solutions of the present invention to others occasions without improvement, all fall within the scope of protection of the present invention.

Claims

1. A welding-based simple upright hose pump, wherein the welding-based simple upright hose pump comprises a circular shell (1), and a fixed plate (13) with a spindle (11), the fixed plate (13) connected to the spindle (11) is arranged on the spindle (11); two centrally symmetrical holes are formed in the fixed plate (13); bosses are arranged at the holes for preventing bearings from moving and separating fixing brackets from outer rings of the bearings; roller shafts (10) are inserted into the holes; the bearings (14) are mounted at a left end and a right end of the roller shafts (10); rollers (12) are mounted on the bearings (14); an output shaft of a helical gear reducer (3) is connected to the spindle (11); the helical gear reducer (3) is matched with a motor (2); four bosses (17) symmetrically arranged in a vertical direction for fixing hoses and arc-shaped ribs (15) for preventing the hoses from moving are welded to the circular shell (1); circular holes symmetrically arranged in a vertical direction are formed in the circular shell (1); the circular holes are configured for receiving rubber hoses; the hoses (7) are fixed to the bosses (17) by the fixing brackets (6) through cooperation of bolts (5) and nuts (4); baffle plates are welded to both sides of the circular shell (1); the baffle plates comprise a rear baffle plate (16); four holes corresponding to mounting holes for a flange of the gear reducer are formed in the rear baffle plate (16); and a large hole for locating is formed in a center.

2. The welding-based simple upright hose pump according to claim 1, wherein through rotation of the spindle (11), the rollers (12) are driven to perform circular motion in a plane and compress the hoses (7); and the hoses (7) are fixed to the bosses (17) and the arc-shaped ribs (15) to be prevented from moving.

3. The welding-based simple upright hose pump according to claim 1, wherein the output shaft of the gear reducer is in an interference fit with the spindle (11) through a key connection; the rollers (12) are in an interference fit with outer rings of the bearings (14); the roller shafts (10) are in an interference fit with inner rings of the bearings (14) and are positioned through shoulders of the roller shafts; and the roller shafts are connected to the fixed plate (13) by electric welding and are positioned adjacent to the inner rings of the bearings (14) through the bosses on the fixed plate (13).

4. The welding-based simple upright hose pump according to claim 1, wherein rolling friction is produced between the rollers (12) and the hoses (7).

5. The welding-based simple upright hose pump according to claim 1, wherein the helical gear reducer (3) is mounted upright.

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