JP2706842B2 - Rotary pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention mainly relates to mortar, concrete, or soil for greening, a binder for agglomerated to fix the soil for greening, and the like. In a rotary-type feeding machine that is capable of forcibly squeezing an object to be conveyed from an elastic cylinder with a roller of a pressing body, a rotary-type machine capable of cooling an elastic cylinder portion is mainly used. Related to a pumping machine.

(Prior Art) Conventionally, this type of rotary pumping device has a pressing action in which a roller of a rotary pressing member presses and rolls an elastic cylindrical body provided along a substantially horizontal U-shape in a case main body from the inside. The object to be conveyed, such as concrete inside the elastic cylinder, is pressure-fed by a squeezing motion caused by the restoring force of the elastic cylinder. The elastic cylinder used for this is suitably made of a rubber material and an appropriate reinforcing core material (for example, a synthetic resin material, a metal material, a glass fiber, or the like) appropriately provided in the rubber material. , Are formed in dimensions.) Are often used.

However, when these rotary pumps are operated for a long period of time, the inside of the case body becomes hot due to frictional heat of each part and the like, and if this high temperature continues, the rotary pump itself, especially the elastic cylindrical body, Will have various adverse effects. That is, the elastic cylindrical body is easily peeled at the joint between the rubber material and the reinforcing core material as appropriate, and there is a problem that the durability is significantly deteriorated. Eventually, the elastic cylinder must be interchangeably mounted relatively frequently, and the pumping operation must be interrupted for that, resulting in poor work efficiency.
In addition, it has disadvantages such as being uneconomical.

Therefore, a squeeze-type concrete pump as described in JP-B-59-22076 has been invented. This is a squeeze-type concrete pump, in which a plurality of outlets are provided on the pump case surface with respect to the back of the pumping tube, and a cock provided with an outlet and connected to a pipe opened to the atmosphere or a water tank is connected to the outlet. Then, liquid or air can be introduced into the pump case.

(Problems to be Solved by the Invention) However, the structure of the squeezed concrete pump as described above is complicated, and most of the cooling device is outside the concrete pump. There were difficulties, etc. that made the whole larger. In addition, although the pumping tube portion in contact with the pump case can be cooled, it is difficult to sufficiently cool the contact portion between the pumping tube and the roller where frictional heat is generated. Is not suitable for cooling. In addition, when the squeezing amount per unit time is increased, the moving speed of the roller is increased, and the amount of frictional heat is also increased, but the cooling power is automatically increased according to the increase in the amount of frictional heat. There was a drawback that handling was inconvenient.

(Means for Solving the Problems) In view of the above, the present invention has been made to solve the above-described difficulties and the like. Specifically, a main case portion formed in a substantially drum shape and a main case portion And a sub-case portion formed in a substantially drum shape and arranged in parallel with each other, and a substantially horizontal U
The main elastic cylinder 2a is arranged in
The main pressing body 3a is rotatably supported so as to press the main pressing body 3a from the inside, and the pressing action by the main pressing body 3a and the main elastic cylinder 2a
With the restoring force of the main elastic cylinder 2a, the object to be conveyed in the main elastic cylinder 2a is formed so as to be continuously pumped. On the other hand, in the sub-case portion of the case body 1, the sub elastic cylinder 2b Along with disposing, the sub-pressing body 3b is rotatably supported so as to press the sub-elastic cylinder 2b from the inside, and the pressing action of the sub-pressing body 3b and the restoring force of the sub-elastic cylinder 2b , Formed so that the object to be conveyed in the secondary elastic cylinder 2b can be continuously pressure-fed,
The auxiliary pressing member 3b is connected to the rotation axis of the main pressing member 3a via a clutch mechanism as appropriate, and in addition to simultaneously rotating the main pressing member 3a and the sub pressing member 3b, only the main pressing member 3a can be rotated. In the formed rotary type pump, a plurality of ventilation holes 1a are appropriately formed in each of the side wall portion of the main case portion, the side wall portion of the sub case portion, and the partition portion between the main case portion and the sub case portion. A relatively large gear having a substantially annular shape is provided on the side of the main pressing body 3a, and the gear is formed so as to mesh with the small gear 6 of the cooling fan 5, and an appropriate number of cooling fans 5 are attached to the main case portion. The cooling fan 5 is arranged so as to face the ventilation hole 1a of the partition wall portion between the and the sub-case portion, and the rotation of the main pressing body 3a causes the cooling fan 5 to rotate at a higher speed to cool the inside of the case body 1. The means to do it were adopted.

(Operation) The case main body 1 is formed by juxtaposing a sub-case portion formed in a substantially drum shape with a main case portion formed in a substantially drum shape, and the main elastic cylinder 2a is The sub elastic cylinder 2b is disposed in a substantially horizontal U-shape in the main case portion.
The main pressing body 3a is disposed in a substantially horizontal U-shape in the sub case portion.
Is rotatably supported so as to press the main elastic cylinder 2a from the inside, and the sub-pressing body 3b is rotatably supported so as to press the sub-elastic cylinder 2b from the inside. The object to be pressed in 2a is continuously pumped by the pressing action of the main pressing body 3a and the squeezing motion of the restoring force of the main elastic cylinder 2a, and the object to be pressed in the sub elastic cylinder 2b is The pressure is continuously fed by the pressing action of the pressing body 3b and the squeezing motion of the restoring force of the auxiliary elastic cylinder 2b.

Then, the sub-pressing member 3b is connected to the rotation shaft of the main pressing member 3a by a clutch mechanism as appropriate, and rotates simultaneously with the main pressing member 3a, or only the main pressing member 3a rotates.

The ventilation holes 1a are appropriately formed in the side wall portion of the main case portion, the side wall portion of the sub case portion, and the partition wall portion between the main case portion and the sub case portion, respectively. The cooling fan 5 arranged so as to face the ventilation hole 1a of the partition between the main pressing member 3 and the small gear 6 meshes with a substantially annular relatively large gear provided on the side of the pressing member 3a. The rotation speed increases with the rotation of 3a. Then, the ventilation hole 1 on the side wall of the sub case
a, ventilation hole 1 in the partition wall between the main case part and the sub case part
a, the air passes in one direction through the ventilation hole 1a in the side wall of the main case, and introduces outside air into the case main body 1; It is discharged outside to cool the entire inside of the case body 1.

Hereinafter, the present invention will be described with reference to illustrated examples.

According to the present invention, an elastic cylinder 2 is disposed in a substantially horizontal U-shape in a case body 1 and a pressing body 3 is rotatably pivoted in the case body 1 so as to press the elastic cylinder 2 from inside. The pressing action of the pressing body 3 and the restoring force of the elastic cylinder 2 are used to fix the mortar, concrete, or greening soil or greening soil in the elastic cylinder 2. The present invention relates to a rotary pumping machine provided with a cooling device capable of continuously pumping an object to be pumped, such as a binder to be granulated, as needed, and cooling the inside of a case body 1 reliably and efficiently.

The case main body 1 shown in the figure includes a main case part formed in a substantially drum shape, and a sub case part arranged in parallel with the main case and formed in a substantially drum shape. Ventilation holes 1a are appropriately formed in the side wall of the sub case and the partition between the main case and the sub case.

Then, in the case main body 1, the main elastic cylindrical body 2 a which is disposed so as to be bent in a substantially horizontal U-shape so as to abut on the inner surface of the peripheral wall of the main case portion, and abuts on the inner surface of the peripheral wall of the sub case. And a main elastic body 2b which is pivotally supported by the main case portion so as to be able to press the main elastic cylindrical body 2a.
Similarly, a sub-pressing member 3b pivotally supported by the sub-case portion so as to press the sub-elastic cylinder 2b is formed.

The main elastic cylinder 2a and the sub elastic cylinder 2b are appropriately made of a rubber material, and a reinforcing core material (for example,
It is formed in an appropriate shape and size by an appropriate synthetic resin material, an appropriate metal material, a glass fiber or the like. ), And is composed of a composite material having a moderate elasticity.
It is configured to have appropriate strength and durability.

The main pressing body 3a is composed of a pressing body fixed to a rotating shaft rotatably supported by a bearing disposed substantially at the center of the main case portion of the case main body 1, and a tip portion of the pressing body base. And a suitable number of rollers 4 that are rotatably mounted on the main elastic cylinder 2a and press the main elastic cylinder 2a directly from the inside. That is, the roller 4 is provided between the main elastic cylinder 2a and the peripheral wall of the main case.
Are arranged at appropriate positions so as to be pressed so as to be substantially flat. In addition, the main elastic body is the main pressing body 3a.
A substantially cylindrical restoring pressing body facing each other at an interval slightly wider than the outer diameter of 2a is provided, and the restoring pressing body rotates together with the roller 4 and is pressed by the roller 4 in a substantially flat shape. The main elastic cylinder 2a is sandwiched between both sides of the cylinder 2a.
It is formed so as to promote the restoring force.

On the other hand, the sub-pressing body 3b is rotatably mounted on the pressing body base that is rotatably mounted on the rotation shaft of the main pressing body 3a, and is rotatably mounted on the front end portion of the pressing body base. And an appropriate number of rollers 4 that are pressed directly. That is, the roller 4 is provided between the auxiliary elastic cylindrical body 2b and the peripheral wall of the auxiliary case.
Are arranged at appropriate positions so as to be pressed so as to be substantially flat. In addition, the pressing body of the sub-pressing body 3b has a sub-elastic cylindrical body.
A substantially cylindrical restoring pressing body is provided to face each other at an interval slightly wider than the outer diameter of 2b, and the restoring pressing body also rotates together with the roller 4 and is pressed by the roller 4 in a substantially flat shape. By sandwiching the cylindrical body 2b from both sides, the secondary elastic cylindrical body 2b
It is formed so as to promote the restoring force.

Further, the sub-pressing member 3b is appropriately connected to the rotation shaft via a clutch mechanism, and in addition to rotating the main pressing member 3a and the sub-pressing member 3b simultaneously, can rotate only the main pressing member 3a. It is configured as follows. That is, the clutch mechanism is provided with a clutch claw on one side surface of the pressing body of the sub-pressing body 3b provided so as to be rotatable with respect to the rotation axis,
On the other hand, clutch pawls are provided on one side of a sliding body slidably provided in the axial direction of the rotary shaft via a key, and the engagement and disengagement of these pawls reduces the driving force from the rotary shaft. Communication,
Alternatively, it is configured so as to be able to shut off. Moreover,
A handlebar is rotatably mounted on the outer side of the sub-case portion, and a sliding body is mounted on the handlebar, and the swinging operation of the handlebar causes the sliding body to slide in the axial direction of the rotation shaft. Is formed.

The cooling device fixes a relatively large gear having a substantially annular shape to the side of the main pressing body 3a, and engages the small gear 6 meshed with the gear.
The cooling fan 5 provided with is disposed so as to face the ventilation hole 1a of the partition wall portion between the main case portion and the sub case portion, and is supported by appropriate means, with the rotation of the main pressing body 3a, The cooling fan 5 is formed so that the inside of the case main body 1 can be efficiently cooled by rotating at a higher speed. That is, air flows in one direction through the ventilation hole 1a in the side wall portion of the sub case portion, the ventilation hole 1a in the partition wall portion between the main case portion and the sub case portion, and the ventilation hole 1a in the side wall portion of the main case portion. As a result, the outside air is smoothly introduced into the case body 1, and the frictional heat and the like generated in the case body 1 are smoothly discharged out of the case body 1,
The entire inside of the case main body 1 is surely cooled.

The specific configuration, shape, size, mounting position, mounting means, number, and the like of the cooling fan 5 are not limited to those shown in the drawings, and can be freely set as appropriate.

The present invention is configured as described above. Next, an example of use will be described. First, an appropriate driving device (for example, an electric motor, a hydraulic motor, an engine, etc.) provided outside the case body 1 is driven. Then, the driving force is transmitted to the rotating shaft, and the pressing body 3 (the main pressing body 3a and the sub-pressing body 3b) is rotated, so that the elastic cylinder 2 (the main elastic cylinder 2a and the sub-elastic cylinder 2b) is rotated. Pump the object to be pumped. At this time, an appropriate number of cooling fans 5 rotate at a high speed via small gears 6 meshing with a relatively large gear having a substantially annular shape fixed to the side portion of the main pressing body 3a, and appropriately rotate through the ventilation holes 1a. While introducing outside air into the case body 1,
The frictional heat generated in the case body 1 is discharged to the outside of the case body 1 to cool the inside of the case body 1.

By the way, in the case of a rotary-type pumping machine as in the present invention including the main elastic cylinder 2a and the sub-elastic cylinder 2b, for example, the main pressing body 3a pumps greening soil, and the sub-pressing body 3b greens. For example, it is possible to pump the binder to be aggregated to fix the soil.

(Effects of the Invention) Accordingly, the present invention forms a case main body 1 including a main case portion formed in a substantially drum shape and a sub case portion formed in parallel with the main case portion and formed in a substantially drum shape. In the main case portion of the case body 1, a main elastic cylinder 2a is disposed in a substantially horizontal U-shape, and the main pressing body 3a is rotatably moved so as to press the main elastic cylinder 2a from the inside. The main pressing body 3a is supported so as to be able to continuously feed the object to be pressed in the main elastic cylinder 2a by the pressing action of the main pressing body 3a and the restoring force of the main elastic cylinder 2a. In the sub-case portion, a sub-elastic cylinder 2b is disposed in a substantially horizontal U-shape, and the sub-pressing body 3b is rotatably supported so as to press the sub-elastic cylinder 2b from the inside. Due to the pressing action of the sub-pressing body 3b and the restoring force of the sub-elastic cylinder 2b, the pressure Is formed so as to be continuously pressure-fed, and in addition to connecting the sub-pressing body 3b to the rotation axis of the main pressing body 3a via a clutch mechanism as appropriate, in addition to rotating the main pressing body 3a and the sub-pressing body 3b simultaneously. A rotary-type feeder formed so that only the main pressing body 3a can be rotated, and a side wall portion of a main case portion;
A plurality of ventilation holes 1a are appropriately formed in the side wall portion of the sub case portion, and the partition portion between the main case portion and the sub case portion, and a relatively large gear having a substantially annular shape is provided on a side portion of the main pressing body 3a. The small gear 6 of the cooling fan 5 is formed so as to mesh with the gear, and an appropriate number of cooling fans 5 face the ventilation hole 1a of the partition wall between the main case and the sub case. The cooling fan 5 rotates at a higher speed with the rotation of the main pressing body 3a to cool the inside of the case body 1, so that the main pressing body 3a (or the main pressing body 3a and the sub pressing With the rotation of the body 3b), an appropriate number of cooling fans 5 also rotate, so that outside air can be smoothly introduced into the entire case body 1 through the ventilation holes 1a, and various parts generated in the case body 1 Friction heat, etc., can be reliably and smoothly discharged from the ventilation hole 1a, and the case body 1 Whole becomes to reliably cool. In particular, the cooling fan 5 is capable of rotating at a considerably high speed, and at the same time, the main pressing body 3a (or the main pressing body 3a).
The rotation speed of the cooling fan 5 also changes in accordance with the rotation speed of the main pressing member 3a (or the main pressing member 3a) in order to increase the squeezing amount per unit time. And the rotation speed of the sub-pressing body 3b)
Even when the moving speed is increased, the rotation speed of the cooling fan 5 automatically increases with an increase in the amount of frictional heat, so that a sufficient and stable cooling force can be obtained and the handling becomes easy. . That is, even if the rotary type pump is operated for a long time, the entire inside of the case main body 1 does not reach a high temperature state, and the rotary type pump itself, the main elastic cylinder 2a, and the secondary elastic cylinder 2b may be adversely affected by heat. And the durability of the main elastic cylinder 2a and the sub-elastic cylinder 2b is not impaired, and the cycle of compatible mounting of the main elastic cylinder 2a and the sub-elastic cylinder 2b becomes longer.
It is economical and the work efficiency is good.

Further, the cooling device including the cooling fan 5, the substantially annular relatively large gear fixed to the side of the main pressing body 3a, and the ventilation hole 1a has a simple configuration, and can be configured to be small and compact. In addition to being easily installed in the case main body 1 of the type pressure feeder, it is hard to break down and has excellent durability.
Moreover, the external shape and dimensions of the rotary type pump are not different from those of the conventional type (the rotary type is not enlarged), and the cooling device is not obstructed. It will be optimal. In particular, since the cooling fan 5 is located at a substantially central portion in the case main body 1, safety is high.

Furthermore, since an appropriate number of cooling fans 5 are arranged so as to face the ventilation holes 1a of the partition wall portion between the main case portion and the sub case portion, the introduced outside air moves smoothly inside the case body 1. And the entire case body 1,
Main elastic cylinder 2a, sub elastic cylinder 2b, main pressing body 3a, sub pressing body 3b
Each can be cooled powerfully and efficiently.

[Brief description of the drawings]

The drawings illustrate the present invention. FIG. 1 is a partially cutaway front view of a pumping machine, and FIG. 2 is a partially cutaway side view of the pumping machine. 1 ... case body, 1a ... ventilation hole, 2 ... elastic cylinder,
2a ... main elastic cylinder, 2b ... sub elastic cylinder, 3 ... pressing body,
3a: Main pressing body, 3b: Sub pressing body, 4: Roller, 5 ...
... cooling fan, 6 ... small gear.

Claims (1)

(57) [Claims] A main case portion formed substantially in a drum shape;
A main body is formed of a sub-case part which is juxtaposed to the main case part and is formed in a substantially drum shape, and a main elastic cylinder is disposed in a substantially horizontal U-shape in the main case part of the case main body. At the same time, the main pressing body is rotatably supported so as to press the main elastic cylinder from the inside, and the pressing action by the main pressing body and the restoring force of the main elastic cylinder cause the inside of the main elastic cylinder to be pressed. The object to be conveyed is formed so as to be continuously pressure-fed, while a sub-elastic cylinder is disposed in a substantially horizontal U-shape within the sub-case portion of the case body, and the sub-elastic cylinder is pressed from the inside. The sub-pressing body is rotatably supported as described above, and the pressing action by the sub-pressing body and the restoring force of the sub-elastic cylinder are formed so that the object to be conveyed in the sub-elastic cylinder can be continuously fed. Connect the auxiliary pressing body to the rotation axis of the main pressing body via a clutch mechanism as appropriate. In addition to rotate the main pressing member and the sub-pressing member at the same time, a rotary pumping machine formed for rotation only the main pressing member, the side wall portion of the main case portion,
A plurality of ventilation holes are appropriately drilled in the side wall portion of the sub-case portion, and the partition portion between the main case portion and the sub-case portion, and a substantially annular relatively large gear is provided on a side portion of the main pressing body, A small gear of the cooling fan is formed to mesh with this gear,
An appropriate number of cooling fans are arranged so as to face the ventilation holes in the partition between the main case and the sub-case. A rotary type pump configured to cool the main body.