CN2316209Y - Wheel rail lubricator sprinkler head for locomotive - Google Patents

Abstract

The utility model relates to a wheel rail lubricator sprinkler head for locomotive, which is the improved design for the existing wheel rail lubricator sprinkler head for locomotive. The utility model is characterized in that the variable cross-section design is used in a plunger in the sprinkler head; a big cross section is used in an air pressure push surface; the design of a small cross section is used in an intermetallic sliding fit surface of the plunger; a low-temperature universal O-shaped sealing ring is used in the sliding seal between the big cross section of the plunger and a plunger sleeve; a copper alloy structure is used in the plunger sleeve of the sprinkler head body to form a rubbing pair with the small cross-section plunger of the steel sprinkler head; the method of the communication of a fat storage groove and a nozzle pipeline which are formed into a sloped pipe of 45 DEG is used in the design of a sprinkler fat pipeline. The utility model has the advantages that the sliding clamping probability is reduced, the reliability and the service life of the sprinkler head are increased, and the safe operation on rails is ensured.

Description

Locomotive wheel-rail lubricating device shower nozzle

The utility model relates to a kind of wheel-rail lubricating device, is the improvement to the wheel-rail lubricating device shower nozzle of installing and using on the existing locomotive.

At present, the shower nozzle of the wheel-rail lubricating device of installing and using on the locomotive exists shortcoming, utility model patent " locomotive is Wheel-track Lubricating installations mounted " nozzle structure (ZL90206407.X) with the application of metallochemistry research institute of railway research institute is an example, exists following shortcoming:

1, the shower nozzle volume is bigger, owing to adopt cast iron materials, its weight is also heavy, cause locomotive to install and change inconvenience, after the entrucking in locomotive operation vibration bigger, poor stability.

2, the plunger of shower nozzle adopts the uniform cross section project organization, though can work, the propelling thrust of plunger is big inadequately.

3, the diameter of plunger is excessive in the shower nozzle, with plunger sleeve cooperate area too big, cause the probability of particulate catching phenomenon to increase in the plunger motion process.

4, retracing spring length is long, and the quality of production should not be controlled, and fatigue damage easily.

5, fill the fat position away from cavity one end that respiratory tract is arranged, for a long time need not, after the residual grease drying in the cavity, also cause the plunger clamping stagnation easily.

The purpose of this utility model be at above listed existing utility model patent " locomotive is Wheel-track Lubricating installations mounted " (ZL90206407.X) in the existing shortcoming of shower nozzle, according to the utilization experience, carry out new structure design and improvement, take the design of miniaturization and lightness, improve the functional reliability and the service life of shower nozzle, more guaranteed railway operation safety.

The technical solution of the utility model be achieved in that a kind of locomotive with wheel-rail lubricating device shower nozzle by sprayer body and superincumbent nozzle, grease inlet joint, air inlet connections etc. are installed form, sprayer body is provided with cavity and pipelines such as grease duct, air duct, spray fat inclined tube road and respiratory tract; Grease inlet communicates with grease duct, admission port communicates with air duct, nozzle communicates with spray fat inclined tube road, plunger is housed between the cavity, have grease storage groove on it, the plunger right-hand member is equipped with retracing spring, and plunger slides between cavity, grease storage groove is successively connected with grease duct or air duct, spray fat inclined tube road, realizes shower nozzle work.Its special character is:

Plunger in a, the shower nozzle adopts the variable section design, and air pressure promotion face adopts the heavy in section, and plunger and metallo-bearing fit partly adopt the small bore design;

The small bore bearing fit face of b, plunger adopts the small bore plunger of copper alloy plunger sleeve and steel to form fastness; General low temperature O RunddichtringO is adopted in plunger slipper seal heavy in section;

C, shower nozzle are when filling the fat position, and plunger is in cavity one end that communicates with respiratory tract;

The pipeline inclined tube connection mode at 45 of grease storage groove and nozzle is adopted in the design of d, grease spraying pipe;

E, sprayer body adopt the aluminum alloy manufacturing;

F, nozzle adopt the elongated design, and its length is 40～60mm;

G, retracing spring adopt big relatively external diameter, short type design, external diameter 10～14mm, free height 30～40mm.

The utility model compared with prior art has the following advantages:

1, the variable section of shower nozzle plunger designs, and can improve the propelling thrust of plunger, reduces slip clamping stagnation probability, the reliability of service and the life-span of effectively improving shower nozzle.

2, adopt universal O RunddichtringO, solve airtight problem heavy in section in the variable section design, easy for installation, reliable operation, cost reduces.

3, use the short spring of big external diameter, produce simply the reliability height.

4, fill the fat position near small bore place cavity one end of air hermetic respiratory tract is arranged, the inner dried grease of long-term obsolete shower nozzle can not amass in the slideway scope of plunger and the motion of blocking plunger.

5, the copper steel fastness between plunger and the plunger sleeve has improved resistance to abrasion and quality of fit, has solved the not wear-resisting problem of common aluminum alloy.

6, adopt 45 ° of smooth type inclined tube road designs, guarantee that the grease atomizing is good, smooth ejection.

7, the long nozzle arrangements design of shower nozzle increases traveling security, compatibility when installing with old type shower nozzle.

8, the sprayer body structure adopts the manufacturing of aluminum alloy profile, effectively reduces the weight of shower nozzle, and installation, maintenance is convenient, improves safety.

Now describe the utility model most preferred embodiment in conjunction with the accompanying drawings in detail:

Fig. 1 is locomotive wheel-rail lubricating device nozzle structure scheme drawing;

Fig. 1 a is the preparation position (filling the fat position) of shower nozzle;

Fig. 1 b is the working position (spray fat position) of shower nozzle.

Among the figure: place, (1) nozzle (2) small bore place cavity (3) copper sheathing (4) sprayer body (5) grease inlet (6) admission port (7) gas circuit hole (8) retracing spring (9) assembly opening (10) hexagonal blind nut (11) heavy in section (16) 45 ° of inclined tube roads of O RunddichtringO, cavity (12) filtering net (13) plunger (14) plunger heavy in section (15) (17) grease storage grooves (18) respiratory tracts (19) grease duct (20) air duct

The shower nozzle periphery is made up of sprayer body (4), nozzle (1), hexagonal blind nut (10), grease inlet joint (5) and air inlet connections (6); The sprayer body inner structure: variable section plunger (13) is arranged, and (its heavy in section part is (14), O RunddichtringO (15) is equipped with in the outside), it is the copper sheathing (3) that is embedded in the sprayer body endoporus that the cliding friction of plunger peripheral matched is paid, the right is retracing spring (8), the right of spring is filtering net (12), and three assembly openings (9) are arranged on the sprayer body.

Pipeline in the shower nozzle mainly is divided into grease duct (19), air duct (20), atomizing grease spraying pipe and respiratory tract (18).When plunger (13) (as shown in Figure 1a) when filling the fat position, join with plunger (13) grease storage groove (17) by the grease duct (19) of its connection by grease inlet (5).When plunger (13) during in spray fat position (shown in Fig. 1 b), join by the air duct (20) and plunger (13) grease storage groove (17) of admission port (6) by its connection; The atomizing grease spraying pipe of being made up of 45 ° of inclined tube roads (16) and nozzle endoporus and the other end of grease storage groove (17) join.Irrelevant with plunger position, air duct (20) communicates by gas circuit hole (7) cavity with left side, plunger heavy in section; Respiratory tract (18) is communicated with the cavity (2) and the atomizing grease spraying pipe at plunger small bore place; The cavity 911 at place, plunger heavy in section) communicates with the external world by filtering net (12).The plunger of shower nozzle is filling round moving between fat position and the spray fat position.

The principle of work and the process of shower nozzle are as follows:

1, fills the fat position

When the operation pressure of admission port (6) was zero, grease storage groove (17) alignd with grease duct (19), and the plunger of shower nozzle (13) is promptly preparing to fill fat position (as shown in Figure 1a); The grease that is under the pressure enters and is full of grease storage groove (17) through grease inlet (5).

2, spray fat position

When admission port (6) operation pressure is 500～900KPa, this pressurized air produces propelling thrust through gas circuit hole (7) in the left side, heavy in section (14) of plunger, overcome the resistance of spring (8), shift plunger (13) onto spray fat position (shown in Fig. 1 b), the air that is squeezed in heavy in section place's cavity (11) is discharged through filter screen (12), and the negative pressure that forms in spray fat secondary piston small bore place's cavity (2) is replenished through respiratory tract (18) by the air in the nozzle.Grease storage groove this moment (17) aligns with pipeline and 45 ° of inclined tube roads (16) of admission port (6), and the grease in the grease storage groove (17) is atomizing in 45 ° of inclined tube roads (16) and nozzle (1) under the compressed-air actuated promotion, and through mouth compression ejection.

3, home position (filling the fat position)

When the operation pressure of admission port (6) is zero once more, retracing spring (8) pushes back plunger (13) again and fills the fat position, the negative pressure of piston heavy in section place's cavity (11) is replenished behind the net filtration after filtration by extraneous air, and the pressurized air in the cavity (2) at piston small bore place is got rid of through nozzle.Repeat the fat process of filling of top program 1 then, prepare next cycle of operations.

Claims (1)

1. By sprayer body (4) and superincumbent nozzle (1), grease inlet joint (5), air inlet connections (6) etc. are installed form, sprayer body (4) is provided with cavity (2) (11) and grease duct (19), air duct (20), spray fat inclined tube road (16) and respiratory tract pipelines such as (18) to a kind of locomotive with wheel-rail lubricating device shower nozzle; Grease inlet (5) communicates with grease duct (19), admission port (6) communicates with air duct (20), nozzle (1) communicates with spray fat inclined tube road (16) plunger (13) is housed between the cavity (2) (11), have grease storage groove (17) on it, the plunger right-hand member is equipped with retracing spring (8), and plunger (13) slides between cavity (2) (11), and grease storage groove (17) is successively connected with grease duct (19) or air duct (20), spray fat inclined tube road (16), the work of realization shower nozzle is characterized in that:

   Plunger in a, the shower nozzle (13) adopts the variable section design, and air pressure promotion face adopts heavy in section (14), and plunger (13) partly adopts the small bore design with the metallo-bearing fit;

   The small bore bearing fit face of b, plunger (13) adopts the copper alloy plunger sleeve (3) and the small bore plunger of steel to form fastness; General low temperature O RunddichtringO is adopted in the slipper seal of plunger heavy in section (14);

   C, shower nozzle are when filling the fat position, and plunger (13) is in cavity (2) one ends that communicate with respiratory tract (18);

   Pipeline inclined tube at 45 (16) mode of communicating of grease storage groove (17) and nozzle (1) is adopted in the design of d, grease spraying pipe;

   E, sprayer body (4) adopt the aluminum alloy manufacturing;

   F, nozzle (1) adopt the elongated design, and its length is 40～60mm;

   G, retracing spring (8) adopt big relatively external diameter, short type design, external diameter 10～14mm, free height 30～40mm.

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