JP2528556B2 - Fluid squeeze pump - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump case in which a fluid squeezing tube is provided along the inner peripheral surface of a pump case, a rotor main body is provided in the center, and the rotor main body is rotated. In a fluid squeeze pump that is pressed and rolled on a squeeze tube, a rotor drive device linked to a reduction mechanism for rotor-main drive is removably accommodated in an opening provided in the pump case, and a pump case The present invention relates to a fluid squeezing pump stored inside.

[0002]

2. Description of the Related Art Conventionally, a fluid squeezing pump in which a speed reducer is incorporated in a pump case is disclosed in JP-A-53-36010.
A fluid squeezing pump incorporating a rotor drive device linked to a reduction gear mechanism is disclosed in Japanese Patent Publication No. 63-37278. However, in both cases, at least one pump case cover must be removed to reduce the speed reduction device / drive device. It is a structure that can not take out.

[0003]

A rotor drive device linked to a reduction mechanism has been used for driving the rotor main body of a fluid squeeze pump. However, when the drive device is provided outside the pump case, Separately, at least one pump case cover must be removed in order to remove this drive for maintenance, repair, etc.

However, the removal of the pump case cover requires a very large amount of workability, and furthermore, the removal of the pump case cover exposes the entire internal structure, which makes reassembling the assembly more troublesome.

According to the present invention, the pump case cover is provided with an opening having a large outer diameter of the rotor drive unit, from which only the rotor drive unit can be taken out while leaving other internal structures unchanged, thereby improving the efficiency of repair work. The object of the present invention is to provide a fluid squeezing pump that can be used.

[0006]

SUMMARY OF THE INVENTION The present invention addresses the above-mentioned problems, and an opening having a large outer diameter of a rotor drive unit linked to a reduction mechanism at the center of a pump case cover on one side. On the other hand, one end of the housing cylinder for housing the rotor drive device faces the opening provided in the pump case cover, and the other end penetrates the center of the rotor main body and is integrated with the arm plate that constitutes the rotor main body. The rotary drive side of the rotor drive device is internally fitted to the rotor drive device housing cylinder, and the fixed side is fitted into the opening of the pump case cover through the lid body. is there.

[0007]

When the drive motor of the rotor driving device linked to the speed reducing mechanism is operated, the speed reducing mechanism reduces the speed to a speed suitable for rotation of the rotor and rotates the rotating side of the rotor driving device.

Since the rotating side of the rotor drive device is internally fitted in the rotor drive device accommodating cylinder, the rotor main body formed integrally with the accommodating cylinder is rotated, and the rotation presses the fluid squeezing tube by the roller. While rolling, the pump action is performed.

The fixed side of the rotor drive is a pump case.
An open-ended tubular lip that is integral with the cover 12.
A pump case via a ring-shaped lid 15 fitted to
Since it is fitted into the opening of the cover, remove the lid 15.
Even if removed, the rim part that is integral with the pump case cover 12
By means of 16, the rotor drive device 5 causes the rim 57 of the rotary frame to
Bearing supported in the center of the other arm plate
In combination with the support by 8, the rotor drive device 5 is
A fixed position can be maintained in the space 1 .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a cylinder 11 and a pair of pump case covers 12 and 1
3 is a pump case that is hermetically formed by the cylinder 1
A rubber pad 2 is attached to the inner surface of 1.

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

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

The inside of the pump case 1 constructed as described above is kept at a negative pressure by a vacuum pump or the like, if necessary, so as to always assist the return holding of the fluid squeezing tube 3 to the original form.

The rotor main body 4 includes a pair of arm plates 41 and 42 facing each other in parallel with a space therebetween, and one of the arm plates 41 and 42.
One end is fixed to the inner center portion of the inner side of the No. 1 and the other end is integrally formed with the rotor drive unit housing cylinder 6 which penetrates the other arm plate 42 and faces the opening 14 of the pump case cover 12.

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

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

That is, the rotor drive unit 5 has a rotating side 5 in a rotor drive unit housing cylinder 6 formed integrally with the rotor main body 4.
2 is accommodated as a whole, and the rim portion 61 of the accommodation cylinder 6 is accommodated.
The bolt 62 is fastened to the rim 57 of the rotary frame 56.

The rim portion 58 of the fixed side 51 of the rotor drive device 5 leaves the exposed portion, and the pump case cover 12
Via the lid 15 that closes the opening 14 of the
Since the pump case cover 12 is fitted with the rim 16 of the opening 14 and is fixed by bolts or the like, the rotor main body 4 is rotatable together with the support shaft 43 provided at the outer center of the arm plate 41. It will be supported in the pump case 1.

The rotor driving device 5 comprises a rotating side 52 having a speed reducing mechanism 53 built therein and a fixed side 51 having a hub motor 54 as a driving source built therein.
The drive shaft 55 from 4 extends into the speed reducing mechanism 53 on the rotating side 52, and the driving force reduced by the speed reducing mechanism 53 is fixed to the rotating frame 56 of the rotating side 52 on the rotor drive device housing cylinder 6. To rotate the rotor main body 4.

According to the present invention having the above-mentioned structure, when the hub motor 54 is first actuated to rotate the drive gear 9, the intermediate gears 91 engaged with the drive gear 9 rotate, but the intermediate gears 91. , The second internal gear 93 meshing with the second gear 92 is fixed, the intermediate gear 91
··· Revolves while rotating.

When the intermediate gear 91 is rotated, the tooth ratio between the first gear 94 and the first internal gear 95 and the tooth ratio between the second gear 92 and the second internal gear 93 are different, The rotating frame 56 is rotated more decelerated than the drive gear 9.

By the rotation of the rotary frame 56, the rollers 7, 7 rotatably supported by the rotor main body 4 move the fluid squeeze tube 3
It rolls up to apply a continuous pressing force to the tube 3, and when the fluid squeezing tube 3 is released from the pressing by the rollers 7 and 7, the restoring force by self-elasticity and the negative force in the pump case 1 are generated. After being restored by pressure, the fluid squeeze tube 3 is pumped by the pressing action of the rollers 7, 7 and the restoring action by self-elasticity and negative pressure, and pumps the fluid in the popper to the transfer pipe.

[0023]

Since the present invention is configured as described above, the opening 14 of the pump case cover 12 is formed into a ring shape even when repairing or replacing the rotor drive unit due to damage or the like.
Pump case cover even if the lid 15 to be closed is removed
The rim 16 which is integral with 12 allows the rotor drive 5
Is supported by the rim 57 of the rotary frame, and is in the other end side arm plate.
The rotor drive coupled with the support by the bearing 8 installed in the center
The moving device 5 can maintain a fixed position in the pump case 1.
The rotor can be installed without removing the pump case cover.
The drive unit can be removed and the core of the rotor drive unit
Since there is no rocking and you can save the time and effort of centering during installation,
Work efficiency such as repair can be significantly improved.

Further, the rotor drive device 5 has a rotating side 5 inside a rotor drive device housing cylinder 6 formed integrally with the rotor main body 4.
Since the whole 2 is accommodated, there is an effect that a useless space in the pump case can be effectively used.

[0025]

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view of a fluid squeezing pump according to the present invention.

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

[Explanation of symbols]

 1 Pump Case 11 Cylindrical Case 12 Pump Case Cover on Open Port Side 13 Pump Case Cover on Bearing Side 14 Open Port 15 Ring Lid 16 Edge Portion of Open Port 2 Pad 3 Fluid Squeeze Tube 4 Rotor Main Body 41 Bearing Arm Plate 42 Arm Plate Penetrating Side of Support Cylinder 43 Support Shaft 5 Rotor Drive Unit 51 Fixed Side of Rotor Drive Unit 52 Rotation Side of Rotor Drive Unit 53 Speed Reduction Mechanism 54 Hub Motor 55 Hub Motor Drive Shaft 56 Rotation Side Rotation Frame 57 Rotating-side rotary frame edge portion 58 Rotor drive device fixed side edge portion 6 Rotor drive device accommodation cylinder 61 Rotor drive device accommodation cylinder edge portion 62 Bolt tightening 7 Roller 8 Bearing 9 Drive gear 91 Intermediate gear 92 Intermediate Gear second gear 93 Second internal gear 94 First gear 95 First internal gear

Claims (1)

(57) [Claims] 1. An outer diameter for accommodating a rotor drive unit linked to a reduction mechanism at a central portion of a pump case cover on one side of a pump case, which comprises a pair of pump case covers sandwiching a cylinder and accommodates a rotor main body. , Pump case cover
An opening having a tubular rim that rises integrally with the opening is provided, and one end of the housing cylinder that houses the rotor drive device faces the opening of the pump case cover,
The other end is formed integrally with the rotor main body by penetrating through the central portion of one arm plate of the rotor main body and being fixed to the other arm plate, and the rotation side of the rotor drive device linked to the reduction mechanism is connected to the rotor drive device. It is characterized in that it is internally fitted to the housing cylinder, and the fixed side is fitted to the opening of the pump case cover through a lid body fitted to the tubular rim of the opening which is integral with the pump case cover. Fluid squeezing pump