CN211259680U

CN211259680U - Shaft end leakage-proof throttle valve

Info

Publication number: CN211259680U
Application number: CN201922422609.9U
Authority: CN
Inventors: 阳永富; 贾洛阳
Original assignee: Shandong Yangde Technology Co ltd
Current assignee: Shandong Yangde Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-14
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to the technical field of engines, especially, relate to a shaft end leak protection air throttle. The butterfly valve comprises a valve body, a rocker arm and a shaft, wherein the shaft is arranged inside the valve body, a through hole for installing the shaft is formed in the valve body, the shaft is rotatably arranged at the position of the through hole, a first bearing end cover and a second bearing end cover are arranged at two ends of the through hole of the valve body respectively, the first bearing end cover and the second bearing end cover are both in sealing connection with the valve body, the shaft penetrates through the second bearing end cover to be connected with the rocker arm, the shaft and the second bearing end cover are in sealing connection through a V-shaped sealing ring, the opening direction of the V-shaped sealing ring faces towards the cavity side. The high-pressure gas acts on the inner side of the V-shaped opening, the V-shaped opening is automatically opened, the pressure is higher, the sealing is tighter, the abrasion caused by the swing of the butterfly valve shaft can be automatically compensated, the problems of high-temperature aging, abrasion failure, shaft end air leakage and the like of a sealing ring are solved, the sealing performance is improved, and the use requirement of the high-temperature high-pressure gas on speed regulation and other throttle valves, particularly after a supercharger, arranged on an air inlet pipeline can be met.

Description

Shaft end leakage-proof throttle valve

Technical Field

The utility model relates to the technical field of engines, especially, relate to a shaft end leak protection air throttle.

Background

At present, a throttle valve is an important part of an engine, and the throttle valve is mainly used for correspondingly adjusting the opening according to the load or rotating speed change of the engine, controlling the air inflow of the engine and realizing the stable operation of the engine.

The throttle valve is usually arranged on an air inlet pipeline behind the intercooler and in front of an engine cylinder, and the throttle valve can only be arranged on the air inlet pipeline behind the supercharger and in front of the intercooler due to structural limitations of the intercooler and the like. The air throttle commonly used in the market at present has the following problems in operation:

1) after the air throttle valve runs for a period of time, the throttle valve sealing ring is aged at high temperature and becomes worn out, and high-temperature and high-pressure gas in the air inlet pipe leaks seriously at the shaft end of the throttle valve.

2) The throttle valve body is made of cast aluminum generally, the throttle valve butterfly door works in a swinging mode, and a bearing seat hole is prone to eccentric wear, so that the butterfly door is blocked.

3) The shaft end and the rocker arm are easy to slide relatively to lose efficacy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a shaft end leak protection air throttle is provided, solve the problem of shaft end gas leakage.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a shaft end leak protection air throttle, includes valve body, rocking arm and axle, the axle sets up inside the valve body, the installation has been seted up on the valve body the through-hole of axle, the axle rotates to set up the through-hole position, the through-hole both ends of valve body are provided with first bearing end cover and second bearing end cover respectively, first bearing end cover, second bearing end cover all with valve body sealing connection, the axle passes second bearing end cover is connected with the rocking arm, the axle with second bearing end cover passes through V-arrangement sealing washer sealing connection, the opening direction of V-arrangement sealing washer is towards the cavity side of valve body, epaxial butterfly door that is provided with.

Further, the shaft is in rolling connection with the valve body through a deep groove ball bearing.

Further, the shaft, the deep groove ball bearing and the valve body are matched to form a cavity structure, and grease is filled in the cavity structure.

Further, the shaft is connected with the valve body in a sealing mode through an O-shaped rubber sealing ring.

Further, an adjusting gasket is arranged between the valve body and the first bearing end cover.

Furthermore, a check ring is arranged between the adjusting gasket and the deep groove ball bearing, and the outer side of the shaft is sleeved with the check ring.

Furthermore, the first bearing end cover and the second bearing end cover are connected with the valve body in a sealing mode through screws and gaskets.

Furthermore, the radial middle part of the shaft is provided with an installation groove, and the butterfly door is fixed in the installation groove through a screw and a gasket.

Further, the shaft is splined to the rocker arm.

The utility model provides a shaft end leak protection air throttle, including valve body, rocking arm and axle, the axle sets up inside the valve body, the installation has been seted up on the valve body the through-hole of axle, the axle rotates the setting and is in the through-hole position, the through-hole both ends of valve body are provided with first bearing end cap and second bearing end cap respectively, first bearing end cap, second bearing end cap all with valve body sealing connection, the axle passes the second bearing end cap is connected with the rocking arm, the axle with the second bearing end cap passes through V-arrangement sealing washer sealing connection, the opening direction of V-arrangement sealing washer is towards the cavity side of valve body, epaxial butterfly door that is provided with. Therefore, the section of the V-shaped sealing ring is V-shaped, high-pressure gas acts on the inner side of the V-shaped sealing ring, the V-shaped opening is automatically opened, the pressure is higher, the sealing is tighter, the abrasion caused by the swing of the butterfly door shaft can be automatically compensated, the problems of high-temperature aging, abrasion failure, shaft end gas leakage and the like of the sealing ring are solved, the sealing performance is improved, and the use requirements of the high-temperature high-pressure gas on speed regulation and other throttle valves, which are arranged on an air inlet pipeline, particularly behind a supercharger.

Drawings

Fig. 1 is an end view of the shaft end leakage-proof throttle valve of the utility model.

Fig. 2 is a schematic structural diagram of the shaft end leakage-proof throttle valve of the present invention.

Fig. 3 is a cross-sectional view of the V-shaped seal ring of the present invention.

Figure 4 is the utility model discloses a V type seal ring axonometric drawing.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a bolt, 2, a first bearing end cover, 3, a second bearing end cover, 4, an adjusting gasket, 5, a retainer ring, 6, a deep groove ball bearing, 7, an O-shaped rubber sealing ring, 8, a shaft, 9, a butterfly door, 10, a valve body, 11, a V-shaped sealing ring, 12 and a rocker arm.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.

As shown in fig. 1-4, the utility model provides a shaft end leak protection air throttle, including valve body 10, rocking arm 12 and axle 8, axle 8 sets up inside valve body 10, the installation has been seted up on the valve body 10 the through-hole of axle 8, axle 8 rotates and sets up the through-hole position, the through-hole both ends of valve body 10 are provided with first bearing end cap 2 and second bearing end cap 3 respectively, first bearing end cap 2, second bearing end cap 3 all with valve body 10 sealing connection, axle 8 passes second bearing end cap 3 is connected with rocking arm 12, axle 8 with second bearing end cap 3 passes through V-arrangement sealing washer 11 sealing connection, the opening direction of V-arrangement sealing washer 11 is towards the cavity side of valve body 10, be provided with butterfly door 9 on the axle 8. Therefore, the section of the V-shaped sealing ring 11 is V-shaped, high-pressure gas acts on the inner side of the V-shaped sealing ring, a V-shaped opening is automatically opened, the higher the pressure is, the tighter the sealing is, the abrasion caused by the swing of the butterfly door shaft 8 can be automatically compensated, the problems of high-temperature aging, abrasion failure, air leakage at the shaft 8 end and the like of the sealing ring are solved, the sealing performance is improved, and the use requirements of the high-temperature high-pressure gas on speed regulation and other throttle valves, which are arranged on an air inlet pipeline, particularly.

The shaft end leakage-proof throttle valve of the utility model, as shown in fig. 1-4, can also be based on the technical scheme described in the foregoing: 8 end leak protection air throttles of axle, valve body 10 material be ZL104, inlay the steel jacket with valve body 10 casting time at the radial middle part both ends bearing frame of axis vertically of valve body 10, improved the intensity of bearing frame, solve deep groove ball bearing eccentric wear and lead to the problem of butterfly door jamming.

The shaft end leakage-proof throttle valve of the utility model, as shown in fig. 1-4, can also be based on the technical scheme described in the foregoing: the deep groove ball bearing, the sealing ring, the groove, the matching surface and the cavity between the end cover and the bearing seat are filled with high-temperature-resistant grease capable of resisting 300 ℃, so that the lubrication can be kept for a long time.

The shaft end leakage-proof throttle valve of the utility model, as shown in fig. 1-4, can also be based on the technical scheme described in the foregoing: the radial middle part of axle is opened there is the mounting groove, and the butterfly door is fixed in the mounting groove by the screw, for the semicircle axle, opens 8 intensity of axle that have the mounting groove and improves greatly.

The shaft end leakage-proof throttle valve of the utility model, as shown in fig. 1-4, can also be based on the technical scheme described in the foregoing: the spline at the end of the shaft 8 is meshed with the spline of the shaft hole of the rocker arm 12, so that the problem of relative sliding failure between the shaft 8 and the rocker arm 12 cannot be caused.

As an embodiment of the present invention, as shown in fig. 1 and fig. 2, a novel shaft end leakage-proof throttle valve includes a bolt 1, a first bearing end cap 2, an adjusting shim 4, a retainer ring 5, a deep groove ball bearing 6, an O-shaped rubber seal 7, a shaft 8, a butterfly door 9, a valve body 10, a V-shaped seal 11, a second bearing end cap 3, and a rocker arm 12. The throttle valve body 10 is internally provided with a cylindrical air inlet channel, flanges at two ends of the valve body 10 are connected with an air inlet pipeline, bearing blocks at two ends of the radial middle part vertical to the axis of the valve body 10 are embedded with steel sleeves when the valve body 10 is cast, and a deep groove ball bearing 6, a shaft 8, a first bearing end cover 2 and a second bearing end cover 3 with a shaft hole are arranged in the bearing blocks; adjusting gaskets 4 are arranged between the first bearing end cover 2 and the second bearing end cover 3 and the end face of the bearing seat of the valve body 10, and are fixed on the bearing seat of the valve body 10 through screws; the butterfly door 9 is fixed in the mounting groove at the radial middle part of the through shaft by a screw; the outer end surfaces of the two deep groove ball bearings 6 on the periphery of the shaft are provided with check rings 5 to prevent the shaft 8 from axially moving; o-shaped rubber sealing rings 7 are arranged on the peripheries of two ends of the shaft, and a cavity between the deep groove ball bearing, the sealing ring, the groove and the matching surface and between the end cover and the bearing seat is filled with 300 ℃ high-temperature resistant butter; the V-shaped sealing ring 11 is placed in the second bearing end cover 3, so that the V-shaped sealing ring 11 is convenient to replace, the opening of the V-shaped sealing ring 11 faces inwards when the V-shaped sealing ring is installed, and the V-shaped sealing ring cannot be reversely installed, so that high-pressure gas acts on the inner side of the V-shaped sealing ring, the V-shaped opening automatically opens, the higher the pressure is, the tighter the sealing is, the abrasion caused by the swing of the butterfly door shaft can be automatically compensated, and the air leakage; a spline at the end of the shaft 8 is meshed with an internal spline in a shaft hole of the rocker arm 12, the rocker arm 12 is connected with the speed regulating actuator through the pull rod, and when the load or the rotating speed of the engine changes, the speed regulating actuator drives the butterfly door to swing through the rocker arm 12, so that the air flow required by the change is met, and the stable operation of the engine is realized.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a shaft end leak protection throttle which characterized in that: including valve body (10), rocking arm (12) and axle (8), axle (8) set up inside valve body (10), the installation has been seted up on valve body (10) the through-hole of axle (8), axle (8) rotate to set up the through-hole position, the through-hole both ends of valve body (10) are provided with first bearing end cover (2) and second bearing end cover (3) respectively, first bearing end cover (2), second bearing end cover (3) all with valve body (10) sealing connection, axle (8) pass second bearing end cover (3) are connected with rocking arm (12), axle (8) with second bearing end cover (3) are through V-arrangement sealing washer (11) sealing connection, the opening direction of V-arrangement sealing washer (11) is towards the cavity side of valve body (10), be provided with butterfly door (9) on axle (8).

2. The shaft end leakage prevention throttle valve according to claim 1, characterized in that: the shaft (8) is connected with the valve body (10) in a rolling mode through a deep groove ball bearing (6).

3. The shaft end leakage prevention throttle valve according to claim 2, characterized in that: the shaft (8), the deep groove ball bearing (6) and the valve body (10) are matched to form a cavity structure, and grease is filled in the cavity structure.

4. The shaft end leakage prevention throttle valve according to claim 3, characterized in that: the shaft (8) is connected with the valve body (10) in a sealing mode through an O-shaped rubber sealing ring (7).

5. The shaft end leakage prevention throttle valve according to claim 4, characterized in that: an adjusting gasket (4) is arranged between the valve body (10) and the first bearing end cover (2).

6. The shaft end leakage prevention throttle valve according to claim 5, characterized in that: and a check ring (5) is arranged between the adjusting gasket (4) and the deep groove ball bearing (6), and the outer side of the shaft (8) is sleeved with the check ring (5).

7. The shaft end leakage prevention throttle valve according to claim 1, characterized in that: the first bearing end cover (2) and the second bearing end cover (3) are connected with the valve body (10) in a sealing mode through screws and gaskets.

8. The shaft end leakage prevention throttle valve according to claim 1, characterized in that: the radial middle part of the shaft (8) is provided with a mounting groove, and the butterfly door (9) is fixed in the mounting groove through a screw and a gasket.

9. The shaft end leakage prevention throttle valve according to claim 1, characterized in that: the shaft (8) is in splined engagement with the rocker arm (12).