SU1476074A1 - Working equipment for moving viscous materials - Google Patents

Abstract

The invention relates to earth-moving machines. The goal is to reduce the consumption of the lubricating medium by automatically adjusting it depending on the load on the working member. The working body contains pushing bars 1 and a hollow blade 2 with nozzles 3 on the working surface. The cavity of the blade 2 is divided by the elastic membrane 4 into the nozzle and retaining chambers 5 and 6. The chamber 5 is in communication with the lubricant supply system. Chamber 6 is in communication with the working environment supply system. The working body has hydraulic cylinders - struts (GPC) 7, pressure and drain hydraulic lines 8 and 9 and the hydraulic distributor 10. With the blade 2 and the push bars of the GPC 7 are connected pivotally. The valve 10 is connected to the CCP 7 cavity and to the pressure and drain hydrolines 8 and 9. The working fluid supply system is made of pressure transducer 12. The latter has a spring-loaded piston 11, cavities 13 and 14. The cavity 13 communicates with the chamber 6. The cavity 14 communicates through an adjustable hydraulic throttle (DG) 15 with a hydraulic distributor 10. The latter is configured to communicate the piston cavities of the GPC 7 in one of the positions of the spool with DG 15 and the rod cavities with drainage line 9. The lubricant medium supply system is made of a pneumatic valve 16, An adjustable pneumodrossel (PD) 17 is connected to the control hydroorgan 18 and from a receiver 20. The operating cavity of the hydroorgan 18 communicates through GD 19 with the piston cavities of the GPC 7 and with the hydraulic control chamber of the pneumatic valve 16. The receiver 20 communicates through the PD 17 and the pneumatic valve 16 with the chamber 5. During the development of viscous material in piston cavities of the PCP 7, the pressure increases and the PD 17 and the pneumatic valve 16 open. The lubricant from PD 17 goes to the nozzles 3. When the operating conditions change, the HD 15 and PD 17 are adjusted. The consumption of the lubricant depends on the degrees and open the PD 17 and set automatically depending on the load. 1 il.

Description

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5 communicates with the lubrication system. Chamber 6 is in communication with the working environment supply system. The working body has gpdrrtsilindra - psdkoay (GCP) 7, pressure and drain gidaolinin 8 and 9 and the hydraulic valve 10, With the blade 2 and the pushes of bars GCP 7 are hinged. The valve 10 is connected to the CCP 7 cavity and to the pressure and discharge valves 8 and 9. The working medium supply system is made of pressure converter 12, the latter has a spring-loaded piston 11t cavities 13 and 14, cavity 3 communicates with chamber b, cavity 14 communicates through adjustable hydraulic throttle (DG) 15 with a hydraulic distributor 10; The latter is configured to communicate piston cavities of PDP 7 in one of the spool positions with DG 15 and rod cavities with

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Hydraulic filler 9, The lubricant supply system is made of pneumatic valve 16, adjustable pneumatic modulus (PD) 17 with control hydroorgan 18 and from receiver 20, Hydraulic organ 18 communicates through HD 19 with piston cavities 7 and with chamber hydraulically controlling the pneumatic valve 16, the Receiver 20 communicates through the PD 17 and the pneumatic valve 16 with the chamber 5. When the viscous material is developed in the piston cavities of the GPC 7, the pressure increases and the PD 17 opens and the pneumatic valve 16 goes to the nozzles 3. When changing operational s environment setting is performed DG 15 and PD 17. The flow of the lubricating medium depends on the degree of opening of PD 17 and is set automatically according to the load 1 yl,

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The invention relates to working bodies of the glazing transport machines and can be used to move viscous materials,

The purpose of the invention is to reduce the flow rate of the lubricant by automatically adjusting it depending on the load on the working member.

The drawing shows a working body for the movement of viscous materials,

The working body contains pushing bars 1 and a hollow blade 2 with nozzles 3 located along the entire working surface, Nozzles 3 communicate with the cavity of the blade 2, which is divided by an elastic membrane 4 pa nozzle 5 and retaining chamber 6, Chamber 5 communicates with the lubricant supply system, and chamber 6 communicates with the system for supplying a working environment. The working body is equipped with hydraulic struts 7, hingedly connected with the blade 2 and pushing bars 1, pressure 8 and drain 9 hydrolines and hydraulic distributor 10 connected to the rod and piston cavities of hydraulic cylinders 7 and to the pressure 8 and drain 9 hydrolines m ,, Worker supply system

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media is made of a pressure transducer 12 having a spring-loaded piston 11, the cavity 13 of which is in communication with the chamber 6, and the cavity 14 communicates through an adjustable hydraulic throttle 15 with the hydraulic distributor 10, the latter is configured to communicate in the upper position of its spool rod cavities of hydraulic cylinders-struts 7 with drain hydraulic line , and their piston cavities - with a hydrothrottle 15; The lubricant medium supply system is made of a pneumatic valve 16, of an adjustable pneumodel 17 with a control organ 18, representing fighting cylinder with a spring-loaded piston and the adjusting screw. The working cavity of the hydroorgan 18 communicates with the hydraulic control chamber of the pneumatic valve 16 and through the adjustable hydraulic throttle 19 with the piston cavities of the hydraulic struts 7, The receiver 20, the communicated pneumatic throttle 17 and the pneumatic valve 16 with the nozzle chamber 5 of the blade 2 are also included in the lubricant supply system.

The working body works as follows.

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In the initial position, the working body does not entail external force action, therefore, in the piston cavities of the hydraulic cylinders-struts 7, blocked by the valve

divider 10 no overpressure

working fluid. In the working cavity of the control body 18 and in the hydraulic control chamber of the pneumatic valve 16, there is also no overpressure and it is closed, and the stem of the control body 18 is spring extended and sets the control body of the pneumatic valve 17 to the Closed position. The lubricant does not flow to the working body. The inlet of the pressure transducer 12 is connected via a hydrothrottle 15 and a hydraulic distributor 10 with a drainage line 9, and the piston is lowered down.

To move the material, the spool of the hydraulic distributor 10 is lowered to the extreme upper position and it connects the rod cavities of the hydraulic struts 7 to the drain hydraulic line 9, and the piston cavities through the hydraulic throttle 15 to the cavity 14 of the pressure transmitter 12. With the beginning of the movement of the material by the working body, the magnitude of the external force is increased, and consequently, the pressure of the working fluid in the piston cavities of the hydraulic cylinders-struts 7. Under the action of the specified pressure, the pneumatic valve 16 and the air throttle 17 open. to the working body through the air throttle 17, is automatically installed using the control body 18 in accordance with the magnitude of the external force action through the pressure of the working fluid spines in the piston cavities of the hydraulic struts 7, The amount of incoming lubricant is adjusted according to the operating conditions by changing the elasticity of the spring of the control organ 18 with a screw, the throttle 19 performs the functions of a filter that delays the high-frequency oscillations of the working fluid pressure in the hydraulic lines management An increase in the external force and the corresponding pressure of the working fluid in the piston cavities of the hydraulic struts 7 causes an increase in pressure in the cavity 14 of the converter 12

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pressure, the piston of which moves upward, overcoming the force of the spring, and increases the pressure in the retaining chamber 6 of the blade; Under the action of this pressure, the diaphragm 4 is pressed against the inner surface of the blade 2 and overlaps the nozzles 3, Lubricating working medium coming from the siver 20 through the air throttle 17 and the pneumatic valve 16 and the nozzle cavity 5, squeezes the membrane 4 and out through the nozzles 3 onto the outer surface of the blade, reducing the strength of the trench material 15 along the blade. Since the amount of pressure of the membrane 4 e to the nozzles 3 depends on the magnitude of the external force applied to the working member, the pressure value of the lubricating working medium is necessary to release the membrane 4 and the output of the lubricating medium, also depends on the magnitude of the external screen effect. The greater the magnitude of the external force flow, the greater the magnitude of the pressure of the lubricant flowing through the nozzle 3 onto the outer surface of the blade,

After the termination of the external force action on the working member, all its elements return to the initial position, and the lubricant g working medium line is automatically blocked by a pneumatic valve 16,

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Claims (1)

Invention Formula Work equipment for moving viscous materials containing 40 pushing bars and a hollow blade with nozzles over the entire working surface communicated with the cavity of the blade, which is divided by an elastic membrane into the nozzle and retaining chambers communicated with supply systems, respectively, of a lubricating and working medium, in order to reduce energy consumption by automatically adjusting the fluid environment depending on the load on the working equipment, it is equipped with hydraulic cylinders-struts, hingedly connected with the blade and current bars, pressure and drain The hydraulics and hydraulic valve connected to the rod and piston cavities of hydraulic cylinders and brackets and to the pressure and drain hydraulic lines, the system led up the working medium made of a pressure-sensitive piston having a spring-loaded piston, the cavity of which on the spring side communicates with the retaining chamber of the blade, and the opposite cavity through the first adjustable hydrodissel connected to the hydraulic distributor, configured to communicate in one of the positions of its spool rod stocks of hydraulic cylinders- strut with drain hydroline, and their piston cavities - with the first adjustable hydraulic throttle, 760746 lubricating medium supply system is made of air valves with hydraulic control chamber of the controlled Unidirectional gidroorganom control, the operating cavity which communicates with the chamber and hydraulically actuated pneumatic valve controlled by the second throttle valve - with pis- Yu nevymi cavities of hydraulic cylinders, struts receiver communicated via adjustment Unidirectional and pnevmoglapan with a nozzle chamber dump. 15