CN211819626U

CN211819626U - Temperature-resistant and pressure-resistant turbocharger actuator

Info

Publication number: CN211819626U
Application number: CN202020251220.2U
Authority: CN
Inventors: 徐跃农; 陈孟娟; 朱小永
Original assignee: Suzhou Carrefour Auto Parts Co ltd
Current assignee: Suzhou Carrefour Auto Parts Co ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-30
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a temperature resistant is withstand voltage and is used turbo charger executor, including last casing, lower casing and pull rod, go up the casing and through the mode fixed connection that bordures and compress tightly with lower casing, be provided with the exhaust hole down on the casing, the air cock sets up on last casing, spring holder lower part embedding and fixed mounting uide bushing, the pull rod passes the uide bushing and extends to casing outside down, and but pull rod and uide bushing relative slip, upward be provided with the air flue on the casing. The gas that has pressure of this executor's air cock input can not reveal under the isolated effect of diaphragm, and consequently the power of this executor is higher than traditional turbo charge by-pass valve executor, and the spring is under spring holder and piston combined action in addition, and the spring also can not produce the displacement after long-term the use, consequently provides the life of this executor.

Description

Temperature-resistant and pressure-resistant turbocharger actuator

Technical Field

The utility model relates to a processing equipment specifically is a temperature resistant is withstand voltage uses turbo charger executor.

Background

The waste gas bypass valve of the supercharger is opened and closed through a motion mechanism of a push rod, a rocker arm and a waste gas valve, the push rod is stressed to drive the rocker arm to move left and right, and then the waste gas valve is driven to swing, so that the waste gas bypass valve is opened and closed. The existing actuator is easy to generate attenuation after running at high temperature and high pressure, so that the actuator is attenuated in advance, and further a fault occurs. Therefore, the turbocharger actuator for resisting temperature and pressure is provided by improving the turbocharger actuator.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the problem of premature senility of the air release valve in six small spaces of China under high temperature and high pressure is solved.

For solving the technical problem, the utility model relates to a temperature resistant is withstand voltage and is used turbo charger executor, including last casing, lower casing and pull rod, its characterized in that, go up casing and casing down through the mode fixed connection that bordures and compress tightly, it has the diaphragm to go up to compress tightly fixed mounting between casing and the lower casing, the bottom of diaphragm is provided with the piston, the top fixed connection of piston and pull rod, the other end of pull rod is worn out from the casing down, the position cover that the pull rod is located last casing and casing down has the spring, fixed mounting has the bottom plate in the casing down, the spring holder has been placed to the top of bottom plate, the both ends of spring are used in spring holder and piston respectively, install the air cock on going up the casing, be provided with the exhaust hole on the casing down.

An air passage is arranged on the inner wall of the top end of the upper shell and consists of two symmetrical meniscuses, and an air guide groove with a certain distance is arranged between the two plates.

As a preferred technical scheme of the utility model, spring holder lower part embedding and fixed mounting uide bushing, be provided with the sealing washer between uide bushing and the spring holder, sealing washer fixed mounting is on the uide bushing.

As an optimized technical scheme of the utility model, the inner wall of uide bushing is the arc surface.

As an optimal technical scheme of the utility model, the pull rod is through two clamping pieces fixed mounting on the piston, and two clamping pieces are located the upper portion and the lower part of piston respectively to two clamping pieces pass through the screw thread and install on the pull rod.

As an optimized technical scheme of the utility model, the piston sets up to have opening and top confined tubular structure for the bottom, the piston top sets up to center department undercut structure.

As a preferred technical scheme of the utility model, the bottom plate passes through bolt fixed mounting on the inner wall of casing down, the bolt is worn out from the bottom of casing down, and the surface cover is equipped with hexagon nut.

As an optimal technical scheme of the utility model, the pull rod runs through spring holder, uide bushing, bottom plate and casing down in proper order, and can reciprocate in last casing and casing down along axial direction under the atmospheric pressure effect.

Compared with the prior art, the utility model discloses an useful part is: the high-temperature and high-pressure performance of the actuator is superior to that of a traditional turbocharger bypass valve actuator, the spring, the diaphragm and the air release valve body are under long-term high-temperature and high-pressure operation, and the spring cannot generate advanced attenuation, so that the temperature-resistant and pressure-resistant service life of the air release valve is prolonged, the turbocharger valve is prevented from being opened in advance, and the pressurizing is avoided to be ineffective.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural view of the upper case.

In the figure: 1. an upper housing; 2. a lower housing; 21. an exhaust hole; 3. a pull rod; 31. a clip; 4. a membrane; 5. a piston; 6. a spring; 7. a spring holder; 8. a guide sleeve; 81. a seal ring; 9. a base plate; 10. a bolt; 11. an air tap; 12. an airway.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3, the utility model relates to a temperature-resistant and pressure-resistant turbocharger actuator, which comprises an upper casing 1, a lower casing 2 and a pull rod 3, and is characterized in that the upper casing 1 and the lower casing 2 are fixedly connected in a wrapping and pressing manner, the lower casing 2 is fixedly connected in a wrapping and pressing manner to form a sealed cavity, a diaphragm 4 is fixedly installed between the upper casing 1 and the lower casing 2 in a pressing manner, the diaphragm 4 is woven by specific weaving number, the service life is prolonged, and the elastic attenuation is reduced, a piston 5 is arranged at the bottom of the diaphragm 4, the piston 5 is fixedly connected with the top end of the pull rod 3, the other end of the pull rod 3 penetrates out of the lower casing 2, a spring 6 is sleeved at the position of the pull rod 3 between the upper casing 1 and the lower casing 2, the spring 6 is pre-pressed at high temperature to release the attenuation in advance, the attenuation after the high-temperature operation is avoided, two ends of the spring 6 respectively act on the spring retainer 7 and the piston 5, an air nozzle 11 is arranged on the upper shell 1, and an exhaust hole 21 is arranged on the lower shell 2.

Wherein, be provided with air flue 12 on the top inner wall of last casing 1, air flue 12 comprises the meniscus of two symmetries, is provided with the air guide groove of certain distance between two boards, increases the air guide groove design, thereby after the diaphragm withstood the upper cover, thereby gaseous through air guide groove slowly get into the valve body in open the bleed valve.

Wherein, spring holder 7 lower part embedding and fixed mounting uide bushing 8, be provided with sealing washer 81 between uide bushing 8 and the spring holder 7, sealing washer 81 fixed mounting is on uide bushing 8, the inner wall of uide bushing 8 is the arc surface, uide bushing 8, adopt circular arc hole design, the bleed valve is when carrying out reciprocating motion, change uide bushing arc design and the friction of bleed valve formation point sum line, frictional force is little, reduce the hysteresis phenomenon of bleed valve, avoid conventional straight hole design, line and line contact, the friction surface is big, easily cause the dead phenomenon of reciprocating motion card, cause the bleed valve can not the return.

Wherein, pull rod 3 is through two clamping pieces 31 fixed mounting on piston 5, and two clamping pieces 31 are located the upper portion and the lower part of piston 5 respectively to two clamping pieces 31 pass through the screw thread and install on pull rod 3, and piston 5 sets up to have the open-ended and top confined tubular structure in the bottom, and piston 5 top sets up to center department undercut structure.

Wherein, bottom plate 9 passes through bolt 10 fixed mounting on the inner wall of casing 2 down, and bolt 10 is worn out from casing 2's bottom down, and the surface cover is equipped with hexagon nut, and the cooperation through bolt 10 and hexagon nut makes bottom plate 9 firmly fixed casing 2 down, reduces bottom plate 9's removal probability.

Wherein, the pull rod 3 penetrates through the spring retainer 7, the guide sleeve 8, the bottom plate 9 and the lower shell 2 in sequence, and can move up and down in the upper shell 1 and the lower shell 2 along the axial direction under the action of air pressure.

The working principle is as follows: after air pressure is introduced through the air nozzle 11, the air can smoothly enter a closed space enclosed by the upper shell 1 and the membrane 4 through the air passage 12, the membrane 4 pushes the piston 5 to move downwards under the action of the air pressure, the piston 5 drives the pull rod 3 to move downwards, the actuating mechanism communicated with the pull rod 3 controls the opening of the waste gas bypass valve, air in the lower shell 2 passes through the exhaust hole 21, after the air pressure in the upper shell 1 is reduced, the pull rod 3 moves upwards under the action of the elastic force of the spring 6, the actuating mechanism communicated with the pull rod 3 controls the closing of the waste gas bypass valve, gas with pressure input by the air nozzle 11 of the actuator cannot be leaked under the isolation action of the membrane 4, the power of the actuator is higher than that of a traditional actuator for a turbo-charging bypass valve, in addition, the spring 6 does not generate displacement under the combined action of the spring retainer 7 and the piston 5 after being used for a long time, thus providing the service life of the present actuator.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The turbocharger actuator for temperature resistance and pressure resistance comprises an upper shell (1), a lower shell (2) and a pull rod (3), and is characterized in that the upper shell (1) and the lower shell (2) are fixedly connected in a wrapping and pressing mode, a diaphragm (4) is fixedly installed between the upper shell (1) and the lower shell (2) in a pressing mode, a piston (5) is arranged at the bottom of the diaphragm (4), the piston (5) is fixedly connected with the top end of the pull rod (3), the other end of the pull rod (3) penetrates out of the lower shell (2), a spring (6) is sleeved at the position, located between the upper shell (1) and the lower shell (2), of the pull rod (3), a bottom plate (9) is fixedly installed in the lower shell (2), a spring retainer (7) is placed above the bottom plate (9), two ends of the spring (6) respectively act on the spring retainer (7) and the piston (5), an air tap (11) is installed on the upper shell (1), and an exhaust hole (21) is formed in the lower shell (2).

2. The temperature-resistant and pressure-resistant turbocharger actuator according to claim 1, wherein an air passage (12) is arranged on the inner wall of the top end of the upper shell (1), the air passage (12) is composed of two symmetrical half-moon plates, and a certain distance of air guide grooves are arranged between the two half-moon plates.

3. The temperature-resistant and pressure-resistant turbocharger actuator according to claim 1, wherein a guide sleeve (8) is embedded in and fixedly mounted on the lower portion of the spring holder (7), a sealing ring (81) is arranged between the guide sleeve (8) and the spring holder (7), and the sealing ring (81) is fixedly mounted on the guide sleeve (8).

4. A temperature and pressure resistant turbocharger actuator according to claim 3, wherein the inner wall of the guide sleeve (8) is a circular arc surface.

5. A temperature and pressure resistant turbocharger actuator according to claim 1, wherein the pull rod (3) is fixedly mounted on the piston (5) by two clamping pieces (31), the two clamping pieces (31) are respectively located at the upper part and the lower part of the piston (5), and the two clamping pieces (31) are mounted on the pull rod (3) by screw threads.

6. The temperature and pressure resistant turbocharger actuator according to claim 1, wherein the piston (5) is arranged in a cylindrical structure with an opening at the bottom and a closed top, and the top of the piston (5) is arranged in a downward concave structure at the center.

7. The temperature-resistant and pressure-resistant turbocharger actuator according to claim 1, wherein the bottom plate (9) is fixedly mounted on the inner wall of the lower shell (2) through a bolt (10), the bolt (10) penetrates out of the bottom of the lower shell (2), and a hexagon nut is sleeved on the surface of the bolt.

8. The temperature-resistant and pressure-resistant turbocharger actuator according to claim 1, characterized in that the pull rod (3) penetrates through the spring retainer (7), the guide sleeve (8), the bottom plate (9) and the lower housing (2) in sequence and can move up and down in the upper housing (1) and the lower housing (2) along the axial direction under the action of air pressure.