JPH04121465A - Rotary type gas compressor - Google Patents

Abstract

PURPOSE:To effectively cool an elastic cylinder and improve durability by providing a cooling fan rotated interlockingly with a pressing body in a one in which a material to be force fed in the elastic cylinder is force fed by the pressing action for pressing the elastic cylinder from the inside and the restoring force of the elastic cylinder. CONSTITUTION:In a rotary type gas compressor, an elastic cylinder 2 is provided in a nearly horizontal U-shaped form in a case body 1, and a pressing body 3 is rotatably supported so as to press the elastic cylinder 2 from the inside. By the pressing action by this pressing body 3 and the restoring force of the elastic cylinder 2, a material to be force fed such as motar in the elastic cylinder 2 is force fed. In this case, ventilation holes 1a are bored in the side wall part of a main case part, side wall part of a sub-case part, and a bulkhead part between the main and sub-case parts in the case body 1, respectively. As a cooling device for cooling the inner part of the case body 1, a cooling fan 5 having a gear 6 engaged with a nearly ring gear fixed to the side part of a main pressing body 3a is pivotally supported to the case body 1, and the cooling fan 5 is rotated by the rotation of the main pressing body 3a.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is mainly concerned with the ability to force-feed materials such as mortar and concrete by forcibly squeezing them out of an elastic cylindrical body using a roller of a pressing body. Regarding the rotary pressure feeding machine.

(Prior Art) Conventionally, this type of rotary pressure feeding machine has a suppressing action in which a roller of a rotary pressing body presses and transfers an elastic cylindrical body extending in a substantially horizontal U-shape inside a case body from the inside. The object to be pumped, such as concrete, inside the elastic cylinder is pumped by the squeezing movement caused by the restoring force of the elastic cylinder. The elastic cylinder used for this purpose is made of an appropriate rubber material and an appropriate reinforcing core material (for example,
It is formed into an appropriate shape and size using an appropriate synthetic resin material, an appropriate metal material, glass fiber, or the like. ) are often used.

(Problem to be solved by the invention) However, when these rotary type pumps are operated for a long time, the inside of the case body becomes hot due to frictional heat of each part, and if this high temperature continues, the rotary type This will have various adverse effects on the pump itself, especially on the elastic cylinder. That is, the elastic cylindrical body tends to peel off at the joint between the rubber material and the reinforcing core material, resulting in a significant deterioration in durability. As a result, the elastic cylinders have to be interchangeably installed relatively frequently, and the pumping operation has to be interrupted for this purpose, resulting in poor working efficiency and uneconomical operation.

(Means for Solving the Problems) Therefore, the present invention was created in order to solve the above-mentioned difficulties. Specifically, the present invention is directed to an elastic tube arranged in a substantially U-shape inside the case body 1. In a rotary pressure feeding machine that pumps the object to be pumped inside the elastic cylinder 2 by the pressing action of pressing the body 2 from the inside by the rotating pressing body 3 and the restoring force of the elastic cylinder 2, the case Ventilation holes 1a are provided in the main body 1 as appropriate. A means of providing a cooling device consisting of a cooling fan 5 that rotates in conjunction with the suppressor 3 was adopted.

(Function) Therefore, the elastic cylinder 2 is arranged in a substantially U-shape inside the case body 1, and is sequentially pressed from the inside by the rotating pressing body 3, and the material to be pressurized inside the elastic cylinder 2 is Due to the squeezing movement of the pressing action by the body 3 and the restoring force of the elastic cylinder 2, the particles are sequentially forced into the elastic cylinder 2. The cooling fan 5 rotates in conjunction with the pressing body 3, and is provided in the case body 1 to introduce outside air into the case body 1 through appropriate ventilation holes 1a. The inside of the case body 1 is cooled by discharging the frictional heat generated in the case body 1 to the outside of the case body 1.

(Example) Hereinafter, the present invention will be explained with reference to illustrated examples.

The rotary pressure feeding machine of the present invention has an elastic cylinder 2 arranged in a substantially horizontal U-shape inside a case body 1, and a pressing body 3 inside the case body 1 so as to press the elastic cylinder 2 from inside. is rotatably supported, and by the pressing action of this pressing body 3 and the restoring force of the elastic cylinder 2, it is possible to continuously pump the material to be pressurized, such as concrete, inside the elastic cylinder 2. An appropriate number of ventilation holes 1a are provided at appropriate positions in the case body 1, and a cooling device consisting of a cooling fan 5 A that rotates in conjunction with the pressing body 3 is provided. It is something.

The case main body 1 shown in the figure consists of a main case part formed in a substantially drum shape, and a sub case part arranged in parallel with this main case and formed in a partial drum shape.A side wall part of the main case part, Ventilation holes 1a are formed as appropriate in the side wall of the sub case part and in the partition wall between the main case part and the sub case part.

The elastic cylindrical body 2 in the case body 1 includes a main elastic cylindrical body 2a which is curved in a substantially horizontal U-shape so as to come into contact with the inner surface of the peripheral wall of the main case part, and a main elastic cylinder 2a which is curved in a substantially horizontal U-shape so as to come into contact with the inner surface of the peripheral wall of the auxiliary case part. The secondary elastic cylinder 2b is curved in a substantially horizontal U-shape so as to be in contact with the secondary elastic cylinder 2b. The elastic cylinder 2 (the main elastic cylinder 2a1 and the secondary elastic cylinder 2b) is made of a rubber material as a base, and has a reinforcing core material (for example, a synthetic resin material, a metal material, etc. as appropriate) in the rubber material. It is made of a composite material made of glass fibers or the like and is formed into an appropriate shape and size, and is configured to have appropriate elasticity, as well as appropriate strength and durability.

The pressing body 3 in the case body 1 includes a main suppressing body 3a that is pivotally supported by the main case part so as to press the main elastic cylinder 2a, and a sub case part that also presses the secondary elastic cylinder 2b. and a sub-suppression body 3b which is pivotally supported.

The main pressing body 3a includes a pressing body base fixed to a rotating shaft rotatably supported by a bearing disposed approximately at the center of the main case portion of the case body 1, and a tip portion of the pressing body base. It consists of an appropriate number of rollers 4 which are rotatably mounted on the main elastic cylinder 2a and directly press the main elastic cylinder 2a from the inside. That is,
This roller 4 is placed at a suitable position to press the main elastic cylinder 2a into a substantially flat state between it and the peripheral wall of the main case part.

Moreover, the main elastic cylinder 2a is attached to the main pressing body base of the main pressing body 3a.
Restorer pressing bodies each having a substantially cylindrical shape facing each other at an interval slightly wider than the outer diameter of the main elastic cylinders are provided, and the restoring pressing bodies also rotate together with the rollers 4, and the main elastic cylinders are pressed into a substantially flat shape by the rollers 4. By sandwiching the body 2a from both sides, the main elastic cylindrical body 2
It is formed to promote the restoring force of a.

Further, the sub-pressing body 3b includes a pressing body base which is rotatably attached to the rotating shaft of the main pressing body 3a, and a pressing body base which is rotatably attached to the tip of the pressing body base, and has the sub-elastic cylinder 2b inside. It consists of an appropriate number of rollers 4 that press directly from the base. That is,
This roller 4 is arranged at an appropriate position so as to press the secondary elastic cylinder 2b into a substantially flat state between it and the peripheral wall of the secondary case part.

Moreover, the pressing body base of the secondary pressing body 3b has a secondary elastic cylinder 2b.
Restorer pressing bodies of approximately cylindrical shape facing each other at an interval slightly wider than the outer diameter of the auxiliary elastic cylinders are provided, and the restoring pressing bodies also rotate together with the rollers 4, and the auxiliary elastic cylinders are pressed into a substantially flat shape by the rollers 4. By sandwiching the body 2b from both sides, the secondary elastic cylindrical body 2
It is formed to promote the restoring force of b.

By the way, the sub-pressing body 3b is connected to the rotating shaft via an appropriate clutch mechanism, and the main pressing body 3a and the sub-pressing body 3b
In addition to rotating the main suppressor 3a at the same time, the structure is such that only the main suppressor 3a can be rotated. That is, in the clutch mechanism, a clutch pawl portion is provided on one side of the pressing body base of the sub-pressing body 3b, which is provided so as to be rotatable with respect to the rotating shaft. A clutch pawl is provided on one side of a sliding body that is provided so as to be slidable in the direction, and the driving force from the rotating shaft can be transmitted or interrupted by engaging and disengaging these pawls. There is. Moreover, a handle rod is rotatably attached to the outside of the sub-case part, and a sliding body is attached to the handle rod.
) The sliding body is formed to slide in the axial direction of the rotating shaft by the swinging operation of the torque lever.

The cooling device shown in FIGS. 1 and 2 has a substantially annular gear fixed to the side of the main pressing body 3a, and a gear 6 meshing with this gear.
The cooling fan 5 is configured to be pivotally supported on the case body 1 by appropriate means, and the cooling fan 5 is configured to rotate by rotation of the main pressing body 3a.

In addition, the cooling device shown in FIGS. 3 and 4 has a main pressing body 3.
It is constructed by directly fixing an appropriate number of cooling fans 5 to the side part of a, and is formed so that the entire cooling fan 5 rotates with the rotation of the main pressing body 3a.

Note that the specific configuration, shape, jurisdiction, mounting position, mounting means, number, etc. of the cooling fan 5 are not limited to those shown in the illustrations, and can be freely set as appropriate.

Furthermore, the cooling device can be installed not only in a rotary pump equipped with a main elastic cylinder 2a and a secondary elastic cylinder 2b as shown in the figure, but also in a rotary pump in which one elastic cylinder 2 is not equipped. It can also be installed in a type pressure feeding machine.

The present invention is constructed as described above. Next, an example of its use will be explained. First, an appropriate drive device (for example, an electric motor, a hydraulic motor, an engine, etc.) provided outside the case body 1 will be described. The driving force is transmitted to the rotating shaft to rotate the pressing body 3C (main pressing body 3a and secondary pressing body 3b), and the elastic cylinder 2 (main elastic cylinder 2a and secondary elastic cylinder 2b) is rotated.
) to force-feed the material to be pressurized. At this time, a cooling fan 5 is connected to the suppressing body 3 (the main pressing body 3a and the sub-pressing body 3b).
rotates and introduces outside air into the case body 1 through the ventilation hole 1a as appropriate, and exhausts the heat generated in the case body 1 to the outside of the case body 1 to cool the inside of the case body 1. do.

By the way, in the case of a rotary pressure-feeding machine equipped with a main elastic cylinder 2a and a sub-elastic cylinder 2b, for example, the main pressing body 3a pumps soil for greening, and the sub-pressing body 3b pumps soil for greening. It becomes possible to force-feed a caking agent that aggregates the soil and fixes it.

(Effects of the Invention) Therefore, the present invention provides a pressing action for pressing the elastic cylinder 2 disposed in an oval shape inside the case body 1 from the inside by a rotating pressing body 3, and a restoration of the elastic cylinder 2. In a rotary type pumping machine that pumps the material to be pumped inside an elastic cylindrical body 2 by force, ventilation holes 1a are appropriately provided in the case body 1, and a cooling fan 5 that rotates in conjunction with the suppressor 3 is used. Since a cooling device consisting of Frictional heat generated in each part can be reliably discharged from the ventilation holes 1a, and the inside of the case body 1 can be reliably cooled. That is, even if the rotary pressure feeder is operated for a long period of time, the inside of the case body 1 will not reach a high temperature state, and there is no possibility that the rotary pressure feeder itself or the elastic cylinder 2 will be adversely affected by heat. The durability of the elastic cylinder 2 is not impaired, and the cycle of compatible mounting of the elastic cylinder 2 is lengthened.
It is economical and has good work efficiency.

Further, the cooling device has a simple structure, can be small and compact, and can be easily installed inside the case body 1 of the rotary pumping machine, and has excellent durability. Furthermore, by housing the cooling device inside the case body 1 of the rotary pumping machine, the external appearance of the rotary pumping machine is completely unchanged from the conventional one, and the cooling device does not get in the way.

Note that a substantially annular gear is fixed to the side of the main pressing body 3a, and a cooling fan 5 equipped with a gear 6 meshing with this gear is pivotally supported on the case body 1 to constitute a cooling device. It becomes possible to rotate the cooling fan 5 relatively more than the rotation of the body 3, and a more powerful cooling effect can be expected.

Furthermore, by configuring a cooling device by directly fixing the cooling fan 5 to the side of the main pressing body 3a, a reliable cooling effect can be expected due to the rotation of the suppressing body 3, and
The configuration of the cooling device can be simplified.

[Brief explanation of the drawing]

The drawings illustrate the present invention; FIG. 1 is a partially cutaway front view of a pressure feeding machine, FIG. 2 is a partially cutaway side view of the pressure feeding machine, and FIGS. 3 and 4 show other embodiments. , FIG. 3 is a partially cutaway front view of the pressure feeding machine, and FIG. 4 is a partially cutaway side view of the pressure feeding machine. DESCRIPTION OF SYMBOLS 1... Case body, 1a... Ventilation hole, 2... Elastic cylinder, 2a... Main elastic cylinder, 2b... Sub-elastic cylinder, 3... Pressing body, a. ...Main pressing body, b...Sub-suppression body, 4...Roller, 5...Cooling fan 1 6...Gear. Agent for patent applicant Sanwa Sangyo Co., Ltd.

Claims (1)

[Claims] 1. An elastic cylinder arranged in a roughly U-shape inside the case body,
In a rotary type pumping machine that pumps the material to be pumped inside an elastic cylinder using the pressing action of a rotating pressing body from the inside and the restoring force of an elastic cylinder, ventilating holes are provided in the case body as appropriate. , a rotary pressure feeding machine characterized by being provided with a cooling device consisting of a cooling fan that rotates in conjunction with a pressing body.