JPH04259688A - Fluid squeeze-out pump - Google Patents

Abstract

PURPOSE:To provide possibility of taking of a rotor driving device by furnishing an opening of a dia. equal to the outside dia. of the rotor driving device in the center of one of the pump case covers, and removing the lid to this opening when the device is to be taken out. CONSTITUTION:An opening of a dia. equal to the outside dia. of a rotor driving device is provided in the center of one of the pump case covers. One end of a rotor driving device accommodation cylinder 6 secured to an arm plate 41 of the rotor body and formed in a single piece is confronted to this opening. The rotary side of this rotor driving device accommodated in the accommodation cylinder is fitted is the accommodation cylinder while the stationary side fitted in the opening of the pump case cover through a lid.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a fluid squeezing tube along the inner circumferential surface of a pump case, and a rotor main body is provided in the center and is rotated. In a fluid squeezing pump that presses and rolls on a squeezing tube, a rotor drive device linked to a deceleration mechanism for rotor main drive is housed in a pump case that can be taken out from an opening provided in the pump case. The invention relates to a fluid squeeze pump housed within the device.

0002

[Prior Art] Conventionally, a fluid squeezing pump with a speed reduction device built into the pump case is disclosed in Japanese Patent Application Laid-Open No. 53-36010.
A fluid squeezing pump with a built-in rotor drive device linked to a speed reduction mechanism is disclosed in Japanese Patent Publication No. 63-37278, but in both cases, unless at least one pump case cover is removed, the speed reduction device/drive device cannot be removed. The structure is such that it cannot be taken out.

0003

[Problems to be Solved by the Invention] A rotor drive device linked to a speed reduction mechanism has come to be used to mainly drive the rotor of a fluid squeezing pump, but when the drive device is provided outside the pump case, Additionally, at least one pump case cover must be removed in order to access the drive for maintenance, repair, etc.

[0004] However, removing the pump case cover requires extremely large-scale work, and there is a problem in that removing the pump case cover exposes the entire internal structure, making reassembly even more troublesome.

[0005] The present invention provides an opening with a large outer diameter for the rotor drive device in the pump case cover, through which only the rotor drive device can be taken out while leaving other internal structures intact, thereby increasing the efficiency of repair work. The object of the present invention is to provide a fluid squeezing pump that can perform the following functions.

[0006]

[Means for Solving the Problems] The present invention addresses the above-mentioned problems by providing an open opening with a large outer diameter for a rotor drive device linked to a speed reduction mechanism in the center of a pump case cover on one side. At the same time, the housing tube that houses the rotor drive device has one end facing the opening provided in the pump case cover, and the other end penetrating the center of the rotor body and being integrated with the arm plate that constitutes the rotor body. This objective was achieved by forming a rotor drive unit, internally fitting the rotating side of the rotor drive unit into the rotor drive unit housing cylinder, and fitting the fixed side into the open opening of the pump case cover via the lid. be.

[0007]

[Operation] When the drive motor of the rotor drive device linked to the speed reduction mechanism is activated, the speed is reduced by the speed reduction mechanism to a rotation speed suitable for the rotation of the rotor main body, and the rotary side of the rotor drive device is rotated.

The rotating side of the rotor drive device is internally fitted into the rotor drive device housing cylinder, so the rotor body, which is integrated with the housing cylinder, is rotated, and the rotation causes the roller to press the fluid squeezing tube. The pumping action is performed by rolling while moving.

Since the fixed side of the rotor drive device is fitted into the open opening of the pump case cover through the lid, the rotor main body can be held together with the support shaft provided in the center of the arm plate on the other end of the rotor main body. It is rotatably supported within the pump case.

0010

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a cylinder 11 and a pair of pump case covers 12, 1
3, the pump case is formed in a sealed manner with the cylinder 1
A rubber pad 2 is adhered to the inner surface of 1.

A rotor main body 4 is housed within the pump case 1 and is rotatably supported at the center of the case.

A fluid squeezing tube 3 made of an elastic material such as rubber or synthetic resin is housed in the pump case 1 along the pad 2 in a U-shape around the rotor main body 4. Both ends of 3 extend outside, and one end is connected to a hopper to which material is supplied, and the other end is connected to a transfer pipe leading to a working section.

The interior of the pump case 1 configured as described above is maintained at a negative pressure by a vacuum pump or the like as necessary, so as to constantly assist the fluid squeezing tube 3 to return to its original shape.

The rotor main body 4 includes a pair of arm plates 41 and 42 facing each other parallel to each other with a gap between them, and one of the arm plates 4
One end is fixed to the inner center part of the pump case cover 12, and the other end is integrally formed with a rotor drive device housing cylinder 6 that passes through the other arm plate 42 and faces the opening 14 of the pump case cover 12.

Two rollers 7, 7 are installed at the tips of the pair of arm plates 41, 42 with a phase difference of 180 degrees, and when the rotor main body 4 is rotated, the rollers 7, 7,
7 presses and rolls on the fluid squeezing tube 3 to perform a pumping action.

A support shaft 43 is fixed to the center of the outside of the arm plate 41 located on one side of the rotor main body 4.
This support shaft 43 is rotatably supported by a bearing 8 provided at the center of the inner wall of the pump case cover 13, and the arm plate 4
By the rotation of the rotary side 52 of the rotor drive device 5, which is fitted into the rotor drive device housing cylinder 6 that passes through the arm plate 42 from the inside of the rotor drive device 1 and faces the open opening 14 of the pump case cover 12, and is fixed by bolts or the like. , the rotor main body 4 rotates.

That is, the rotor drive device 5 has a rotation side 5 in a rotor drive device housing cylinder 6 formed integrally with the rotor main body 4.
2 is housed in its entirety, and the mouth edge 61 of the housing cylinder 6 is
A bolt 62 is tightened to the mouth edge 57 of the rotating frame 56 on the rotating side.

The mouth edge 58 of the fixed side 51 of the rotor drive device 5 is attached to the pump case cover 12, leaving an exposed portion.
Through the lid body 15 that closes the opening 14 of the
Since it is fitted with the mouth edge 16 of the opening 14 of the pump case cover 12 and fixed by bolts or the like, the rotor main body 4 can be freely rotated together with the support shaft 43 provided at the center of the outside of the arm plate 41. It will be supported within the pump case 1.

The rotor drive device 5 consists of a rotating side 52 that incorporates a reduction mechanism 53 and a fixed side 51 that incorporates a hub motor 54 serving as a drive source.
A drive shaft 55 from 4 extends into the speed reduction mechanism 53 on the rotation side 52, and the driving force reduced by the speed reduction mechanism 53 is transferred from the rotation frame 56 on the rotation side 52 to the rotor drive device housing cylinder 6 fixed to this. is transmitted to rotate the rotor main body 4.

The present invention has the above structure, and when the hub motor 54 is first activated to rotate the drive gear 9, the intermediate gears 91 meshed with the drive gear 9 rotate; Since the second internal gear 93 meshing with the second gear 92 is fixed, the intermediate gear 91
... revolves around its axis.

When the intermediate gear 91 is rotated, since the ratio of the number of teeth between the first gear 94 and the first internal gear 95 and the ratio of the number of teeth between the second gear 92 and the second internal gear 93 are different, The rotating frame 56 is rotated at a greater speed than the driving gear 9.

Due to the rotation of the rotating frame 56, the rollers 7, 7, which are pivotally supported by the rotor main body 4, rotate the fluid squeezing tube 3.
When the pressure from the rollers 7, 7 is released, the fluid squeezing tube 3 exerts a restoring force due to its own elasticity and a negative force inside the pump case 1. The fluid squeezing tube 3 is restored by the pressure, and the fluid squeezing tube 3 is given a pumping action by the pressing action by the rollers 7 and the restoring action by self-elasticity and negative pressure, and forces the fluid in the popper into the transfer pipe.

[0023]

As the present invention is constructed as described above, even when the rotor drive device is repaired or replaced due to damage etc., the cover body 15 that closes the opening 14 of the pump case cover 12 in a ring shape can be used. Since the rotor drive device can be taken out by simply removing the bolts and without removing the pump case cover, work efficiency such as repairs can be significantly improved.

Further, the rotor drive device 5 has a rotation side 5 in a rotor drive device housing cylinder 6 formed integrally with the rotor main body 4.
2 is housed in its entirety, so there are advantages such as the ability to effectively utilize wasted space within the pump case.

[0025]

[Brief explanation of the drawing]

1 is a general longitudinal sectional view of a fluid squeeze pump according to the invention; FIG.

FIG. 2 is an overall vertical cross-sectional view of a rotor drive device linked to a speed reduction mechanism.

[Explanation of symbols]

1 Pump case 11 Cylindrical case 12 Pump case cover 13 on the open port side
Pump case cover 14 on the bearing side Opening port 15 Ring-shaped lid body 16 Mouth edge of the opening port 2 Pad 3 Fluid squeezing tube 4 Rotor main body 41 Arm plate on the bearing side 42 Arm plate on the housing cylinder penetration side 43 Support shaft 5 Rotor drive Device 51 Fixed side of the rotor drive device 52 Rotation side of the rotor drive device 53 Reduction mechanism 54 Hub motor 55 Drive shaft 56 of the hub motor Rotation side rotation frame 57 Mouth edge of the rotation side rotation frame 58 Fixed side of the rotor drive device rim of mouth 6
Rotor drive device housing tube 61 Mouth edge of rotor drive device housing tube 62
Bolt tightening 7 Roller 8 Bearing 9 Drive gear 91 Intermediate gear 92 Second intermediate gear 93 Second internal gear 94 First gear 95 First internal gear

Claims (1)

[Claims] Claim 1: A pump case consisting of a pair of pump case covers sandwiching a cylinder and accommodating the main body of the rotor has an opening with a large outer diameter for a rotor drive device linked to a speed reduction mechanism in the center of one side of the pump case cover. In addition to providing an opening, the housing cylinder housing the rotor drive device has one end facing the open opening of the pump case cover, and the other end passes through the center of one arm plate of the rotor main body and connects to the other arm plate. By fixing, the rotary side of the rotor drive device, which is formed integrally with the rotor main body and linked to the reduction mechanism, is internally fitted into the rotor drive device housing cylinder, and the fixed side is attached to the pump case cover through the lid body. A fluid squeezing pump characterized by fitting into an open port.