RU2244202C2 - Device for supplying lubricant - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: device has housing with a plunger, check valve, and cylinder with a piston.

EFFECT: enhanced efficiency.

1 dwg

Description

The invention relates to the field of engineering and can be used to pump greases and thick oils to the friction surfaces of the nodes and mechanisms of various machines during their operation.

Known solid-injection pump (av.St.SSSR No. 717475, class F 16 3/06, Official Bulletin "Discoveries, inventions, industrial designs, trademarks" No. 7 of 02.25.1980, pg. 212), in which the injection of lubricant carried out using a rod and a piston screwed into the body by thread. The disadvantage of this solid oil blower is that it is not suitable for pumping greases to friction surfaces with small gaps due to the impossibility of creating a large lubricant pressure. To do this, a plunger pair and a check valve are required at the grease outlet from the housing.

The closest device for the same purpose, adopted as a prototype, is a lever-plunger syringe Ш1-3911010-А ТУ 37.001.424-82, inv.-bearing 5669 (Appendix 1), publisher "Shadrinsk Automobile Aggregate Plant", Shadrinsk, Kurgan region, 641806, Sverdlova St. 1, year of publication 01.01.83, sheets 2.10.

The injection of lubricant in the lever-plunger syringe is carried out by the plunger 7 through the check valve 8, which is integrated at the outlet of the lubricant from the housing. The disadvantage of this lever-plunger syringe is that to supply lubricant to the plunger 7, it is necessary to move the piston 5 in the cylinder 6, constantly applying manual force to the rod 4. At the same time, the lever-plunger syringe must be held in hands and the reciprocating movement of the plunger 7, which is very laborious and inconvenient in work. The amount of lubricant to be filled into the lever-plunger syringe is significantly less (more than 2 times) the amount of lubricant in the inventive device for supplying lubricant.

The objective of the present invention is to increase the productivity of the device and ease of use, as well as reducing labor costs when working with the device.

A comparison of the claimed device for supplying lubricant containing a housing with a plunger and a check valve, a cylinder with a piston and a rod, with the prototype allows us to conclude that the latter does not have signs similar to the significant distinguishing features in the claimed device for supplying lubricant:

- the device is equipped with a universal stand;

- a thread is made on the stem and in the cover to move the piston.

The set of features of the proposed technical solution has differences from the prototype and the known analogue and does not follow explicitly from the studied prior art, therefore, the authors believe that the object is new and has an inventive step.

The invention has an inventive step and due to the fact that a combination of features, namely:

- the device is equipped with a universal stand;

- a thread is made on the stem and in the cover to move the piston,

solve the problem of the invention: improving device performance and ease of use, as well as reducing labor costs when working with the device. These signs are interconnected so that when one of them is eliminated, the technical result obtained by the invention disappears. The invention also represents a certain step in the development of technology and is progressive, as it allows to increase the productivity of the device and ease of use, as well as reduce labor costs when working with the device.

A lubricant supply device comprising a housing with a plunger and a check valve, a cylinder with a piston and a rod, in which the invention is claimed, can be widely used in mechanical engineering, i.e. is an industrially applicable technical solution.

The achievement of the technical result during operation of the lubricant supply device, comprising a housing with a plunger and a check valve, a cylinder with a piston and a rod, is ensured by the fact that:

- the device is equipped with a universal stand;

this allows you to install the device in any convenient position for work (vertical or horizontal);

- a thread is made on the stem and in the cover to move the piston.

This solution allowed to apply the load to the rod periodically and significantly less than in the existing prototype, and also allowed to reduce the load applied to the lever to move the plunger. Reducing the applied load made it possible to increase the volume filled with grease by more than 2 times. Accordingly, increased device performance.

The essence of the claimed invention is illustrated by the attached drawing. The drawing shows a lubricant supply device, which consists of a handle 1, a cover 2, a rod 3, a piston 4, a lever 5, a cylinder 6, a plunger 7, a check valve 8, a stand 9, a flexible sleeve 10, a fitting 11, a housing 12. B the cover 2 and the stem 3 has a trapezoidal thread, through which the piston 4 moves and delivers lubricant to the plunger 7.

Preparation of the device for operation and its operation is carried out in the following order. Unscrew cylinder 6 with cover 2, stem 3 and piston 4 from housing 12. Rotate handle 1 with stem 3 and piston 4 and unscrew from housing 12. Rotate handle 1 with stem 3 and move piston 4 to fill cylinder 6 with grease. Screw cylinder 6 with grease into housing 12 until it stops. By turning the handle 1, moving the piston 4, apply lubricant to the plunger 7. Giving reciprocating motion to the lever 5 and the plunger 7, apply lubricant through valve 8, flexible sleeve 10 and fitting 11 to the friction surfaces. In this case, the device can be installed using the universal stand 9 in any convenient position for work (vertical or horizontal).

Claims (1)

A lubricant supply device comprising a housing with a plunger and a check valve, a cylinder with a piston and a rod, characterized in that the device is equipped with a universal stand, and a thread is made on the rod and in the cover for moving the piston.