BR202013008793U2 - improvements made to helical pump - Google Patents

Abstract

improvements made to the helical pump. it is a helical pump (1) composed of a motor mechanism (2) coupled to a gearmotor (3) on its back and fixed to rigid elements with mechanical connections so that they drive. a rotor (4) on a stator component (5) whereas a helical pump (1) sealing system (1) is provided where the gaskets (7) operate as a mechanical seal on a stuffing box (8); includes a drive shaft (9) and a coupling shaft (10); the gaskets fit into the hardness hardened wear gasket bushings (12) arranged on the drive shaft (9); a helical pump body (13) provides for at least four expanded manholes (14) for withdrawing the driveshaft couplings (9) and coupling (10).

Description

UTILITY MODEL PATENT DESCRIPTIVE REPORT "Improvements Introduced into Helical Pumps" This Patent Application is filed under Utility Model Patent for "HELIC PUMPS INTRODUCED", particularly of a similarly similarly conventional Domoa. technical advantages in order to incur functional improvements, and result in equipment which is extraordinarily easier to maintain compared to equipment of the current state of the art.

In order to better interpret the proposed improvements, a brief explanation of the state-of-the-art gear pump technology, its operation as well as the identified problems where it will be possible for one skilled in the art to recognize the limiting aspects for later discussion will be given. on the advantages achieved with the revealed proposal.

Pumps are machine tools that apply energy to a fluid for the purpose of transporting it from one point to another under procedural conditions.

In particular, helical pumps are known in the prior art. A conventional Helical pump has a rubber stator whose inner part is in the form of a high pitch, double threaded two-inlet (double helix) screw. The rotor is a screw whose pitch is half the pitch of the stator thread. The rotor rotates around its main axis and with it, necessarily around the stator axis, making a sliding eccentric movement with mechanical action. In this way, the spaces that form between the inside of the stator and the rotor move axially and continuously with the movement of the rotor from the suction to the discharge mouth, without changes in its shape or shape. volume.

This type of pump can be used to pump any type of product, especially those of high viscosity such as concentrated foods, pulps, pasta among others. A characteristic of this type of pump is that it can not run dry, because as the stator is rubber there will be overheating due to the friction occurring burning it impairing the efficiency of the pump.

All state-of-the-art pumps naturally wear components due to working time. Common and frequent wear is on gaskets, gaskets, bearings and shafts. To service these pumps and consequently replace worn components, the operator disassembles the entire assembly inside the pump casing. Obviously it is necessary that the equipment remains off.

Even for replacing only one component, the pump known in the prior art needs to be completely disassembled. This will replace the damaged part followed by mounting the components and installing the pump in the equipment. Obviously, economic and technical losses occur during the traditional maintenance of helical pumps.

The "Improvements Introduced in Helical Pumps", the subject of this patent application, have a number of advantages and improvements over conventional helical pumps. The proposal aims to improve maintenance by eliminating the need to completely disassemble the pump. Notwithstanding the present invention the proposed pump provides for local maintenance, ie there is no longer a need to remove the pump. _. Preliminarily, the inventor has simply and innovatively identified a new arrangement in the helical pump casing that solves the main problem of the state of the art.

This problem can be translated with regard to access to internal components that have the highest defect index. In a preferred embodiment the new arrangement addresses areas of access to internal components based on the constructiveness of manhole windows closed by covers. Particularly there are two side windows in the helical pump body.

Another groundbreaking detail is an improvement dealing with a helical pump sealing system. This seal is a sealing system type. Includes bushings for gaskets installed on the drive shaft. This sealing system prevents spindle pumps from being filled with welds where the gaskets have worn. Wear occurs on bushings that can be replaced by the rear of the pump, ensuring better leak-free performance. In addition to the present description in order to gain a better understanding of the features of the present utility model application, attached hereto is a set of drawings, in which, by way of example but not limitation, an embodiment has been shown for helical pump now claimed where: Figure 1 represents the sectional view of the proposed helical pump; Figure 2 is a detail of the sealing system including the gaskets and gasket bushings; Figure 3 represents the perspective view of the helical pump.

DETAILED DESCRIPTION

The "PERFORMANCE INTRODUCED IN HELICAL PUMP", the subject of this Utility Model Patent Application, applies to a helical pump (1) composed of a motor mechanism "(2) coupled to a geared motor (3) supported and fixed to rigid elements. , with mechanical connections such that they drive a rotor (4) into a stator component (5). Includes a sealing pump (6) system (1) where the gaskets (7) operate as a mechanical seal on the stuffing box. (8) A drive shaft (9) and a coupling shaft (10) are provided.

In the present improvement maintenance of the helical pump (1) occurs by disassembling the stuffing box (8) and optionally by connecting the gearmotor (3) with the lantern (11) which is expanded to replace the components eliminating the fact of disassembling all The motorcycle bomb set.

The gaskets of the present helical pump (1) fit into the hardness hardened wear gaskets (12) arranged on the drive shaft (9). Said gasket bushings (12) seal the drive shaft with the pumping chamber.

In the present improvement the sealing system (6) prevents that in the maintenance of the helical pumps (1) the shafts are filled with welds in the place that the gaskets have worn. The wear occurs on the bushings (12) which can be replaced by the rear part called lantern (11), ensuring better performance without leaks. Tightening the gaskets (7) of split construction allows removal of the drive shaft (9) without disassembling the pump (1) facilitating the replacement of the gaskets (7) by the lantern (11) of the pump assembly. The body (13) The auger pump housing provides at least four expanded manholes (14) which enable the drive shaft couplings (9) and coupling (10) to be removed for replacement if damage and fracture occur therein. It is adaptable to different types of stator and rotor assemblies, which changes the pump configuration if a larger pump is needed for higher flow.The replacement of the couplings through the developed improvements is extremely easy due to the passage through the expanded manholes.

Generally speaking, the objectives achieved are translated by the large windows in the pump body to facilitate maintenance without having to relocate the mechanical assembly, disassembly of the stuffing box without disassembling the motor, to exchange the packing set for the overlapping stuffing bushes.

It is verified by what has been described and illustrated that the "PERFORMANCE INTRODUCED IN 'HELIC PUMP", now claimed falls under the rules governing the utility model patent under the Industrial Property Law, deserving for what was exposed and as a consequence , its privilege.

Claims (4)

1) "PERFORMANCE INTRODUCED IN HELICAL PUMP" means a helical pump (1) composed of a motor mechanism (2) coupled to a gearmotor (3) supported and fixed to rigid elements, with mechanical connections to drive a rotor ( 4) on a stator component (5) CHARACTERIZED BY THE FACT THAT there is provided a sealing system (6) of the helical pump (1) where the gaskets (7) operate as a mechanical seal on a stuffing box (8); includes a drive shaft (9) and a coupling shaft (10); the gaskets fit into the hardness hardened wear gasket bushings (12) arranged on the drive shaft (9); a helical pump body (13) provides for at least four expanded manholes (14) for withdrawing the drive shaft couplings (9) and coupling (10). 2) "PERFORMANCE INTRODUCED IN HELIC PUMP" according to claim 1, characterized by the fact that the body (13) of the helical pump (1) is adaptable to different types of stator and rotor assemblies. 3) "PERFORMANCE INTRODUCED IN HYDICO PUMP" according to claim 1, characterized by the fact that the gasket bushings (12) can be used by the rear end called the lantern (11). 4) "PERFORMANCE INTRODUCED IN HELICAL PUMP" according to claim 1, characterized by the fact that the split gaskets (7) are split so as to remove the drive shafts (9) without disassembling the pump (1) facilitating the replacement of the gaskets (7) by the lantern (11) of the pump set.