CN213796318U

CN213796318U - Valve rod pretightening force adjusting mechanism for supercharger air release valve

Info

Publication number: CN213796318U
Application number: CN202022659587.0U
Authority: CN
Inventors: 张宝坤; 李立超; 邴昊; 韩家明; 冯旭; 宋春锋; 鞠广理; 张岩
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-27
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a valve rod pretightning force adjustment mechanism for booster bleed valve belongs to booster technical field. The utility model discloses a valve rod pretightning force adjustment mechanism, including two clamping bars through round pin hub connection, the tip of one of them clamping bar sets up the location hook, and the tip of another clamping bar sets up the location and holds in the palm, and the location hook hold in the palm can be fast with the valve rod joint with the location, and the location hook holds in the palm the clamp force opposite direction who acts on the valve rod with the location, and then utilizes lever principle, only needs very little power can overcome the pretightning force of valve rod to the valve rod dismantlement difficulty, hard problem have been solved. Simultaneously, the location holds in the palm or the location hook can also move, is convenient for adjust the interval between the two in order to adapt to the not valve rod of equidimension, and application scope is wider.

Description

Valve rod pretightening force adjusting mechanism for supercharger air release valve

Technical Field

The utility model relates to a booster technical field especially relates to a valve rod pretightning force adjustment mechanism for booster bleed valve.

Background

In the engine performance development test process, the pretightening force of the valve rod of the air release valve needs to be adjusted frequently, and no valve rod pretightening force adjusting tool special for a common air release valve is available on the market at present, so that the pretightening force valve rod is assembled and disassembled in a complex process, the development efficiency of an engine bench test is reduced, and the development cost of the engine bench test is increased. The existing valve rod pretightening force adjusting tool mostly needs to change the structure of a valve rod, so that the production cost is increased, and the durability of the valve rod is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve rod pretightning force adjustment mechanism for booster bleed valve, simple structure, the cost of manufacture is low, can satisfy different model demands, convenient to use.

In order to realize the purpose, the following technical scheme is provided:

a valve rod pretightening force adjusting mechanism for a booster air release valve comprises a pin shaft and two clamping rods, wherein the clamping rods are rotatably connected through the pin shaft;

one of the two clamping rods is provided with a positioning hook, the other clamping rod is provided with a positioning support, two ends of the valve rod are respectively clamped with the positioning hook and the positioning support, and the directions of the clamping forces of the positioning hook and the positioning support on the valve rod are opposite;

the positioning hook is fixedly connected with the positioning support, one of the positioning hook is fixedly connected with the corresponding clamping rod, and the other positioning hook is slidably connected with the corresponding clamping rod.

As a preferable scheme of the valve rod pretightening force adjusting mechanism, the positioning hook comprises a first connecting seat and a hook body, the hook body is fixed on one side of the first connecting seat, and the first connecting seat is fixed at one end of the corresponding clamping rod.

As a preferable scheme of the valve rod pretightening force adjusting mechanism, the positioning support comprises a second connecting seat and a support block, the support block is fixed on the second connecting seat, and the second connecting seat is in sliding connection with one end of the corresponding clamping rod.

As the preferable scheme of the valve rod pretightening force adjusting mechanism, one end, connected with the second connecting seat, of one clamping rod is provided with a long hole, a connecting piece is arranged on the second connecting seat and can penetrate through the long hole to connect the second connecting seat with the clamping rod, and the second connecting seat can slide along the long hole.

As the preferred scheme of the valve rod pretightening force adjusting mechanism, a stand column is arranged on the supporting block, the stand column is telescopically arranged on the second connecting seat in a penetrating mode, a locking piece is arranged on the second connecting seat, and the locking piece can lock or unlock the stand column and the second connecting seat.

As a preferable scheme of the valve rod pretightening force adjusting mechanism, a hook groove is formed in the hook body, a groove is formed in the support block, and the center line of the hook groove in the length direction is overlapped with the center line of the groove in the length direction.

As a preferable scheme of the valve rod pretightening force adjusting mechanism, the hook groove is of an n-shaped structure.

As the preferable scheme of the valve rod pretightening force adjusting mechanism, the groove is of a U-shaped structure.

As the preferable scheme of the valve rod pretightening force adjusting mechanism, the clamping rod comprises a bending section and two vertical sections, the vertical sections are respectively positioned at two ends of the bending section, and the bending sections of the two clamping rods are rotationally connected through the pin shaft.

As a preferable scheme of the valve rod pretightening force adjusting mechanism, a holding part is arranged at one end of the clamping rod, which is far away from the positioning hook or the positioning support.

As a preferable scheme of the valve rod pretightening force adjusting mechanism, the hand holding part is provided with an anti-slip pad.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a valve rod pretightning force adjustment mechanism, including two clamping bars through round pin hub connection, the tip of one of them clamping bar sets up the location hook, and the tip of another clamping bar sets up the location and holds in the palm, and the location hook hold in the palm can be fast with the valve rod joint with the location, and the location hook holds in the palm the clamp force opposite direction who acts on the valve rod with the location, and then utilizes lever principle, only needs very little power can overcome the pretightning force of valve rod to the valve rod dismantlement difficulty, hard problem have been solved. Simultaneously, the location holds in the palm or the location hook can also move, is convenient for adjust the interval between the two in order to adapt to the not valve rod of equidimension, and application scope is wider.

Drawings

Fig. 1 is a schematic structural view of a valve rod pretightening force adjusting mechanism in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a clamping bar according to an embodiment of the present invention;

fig. 3 is a schematic structural view of another clamping bar according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a positioning hook in an embodiment of the present invention;

fig. 5 is a schematic structural view of the positioning holder in the embodiment of the present invention.

Reference numerals:

1. a pin shaft; 2. a clamping bar; 21. a long hole; 22. bending sections; 23. a vertical section; 24. a hand-held portion; 3. a positioning hook; 31. a first connecting seat; 32. a hook body; 321. a hook groove; 4. a positioning support; 41. a second connecting seat; 411. a connecting member; 42. a support block; 421. and (4) a groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the embodiment provides a valve rod pretightening force adjusting mechanism for a supercharger exhaust valve, which includes a pin 1 and two clamping rods 2, wherein the clamping rods 2 are rotatably connected through the pin 1; one of the two clamping rods 2 is provided with a positioning hook 3, the other clamping rod is provided with a positioning support 4, the two ends of the valve rod are respectively clamped with the positioning hook 3 and the positioning support 4, and the directions of the clamping forces acting on the valve rod by the positioning hook 3 and the positioning support 4 are opposite; the positioning hooks 3 and the positioning supports 4 are fixedly connected with the corresponding clamping rods 2, and the other one is connected with the corresponding clamping rods 2 in a sliding manner. The positioning hook 3 and the positioning support 4 can be fast connected with the valve rod in a clamped mode, the clamping force applied to the valve rod by the positioning hook 3 and the positioning support 4 is opposite in direction, then the lever principle is utilized, the pre-tightening force of the valve rod can be overcome by only small force, and therefore the problem that the valve rod is difficult to disassemble and labor is wasted is solved. Simultaneously, the location holds in the palm 4 or the location hook 3 can also remove, is convenient for adjust the interval between the two in order to adapt to the not valve rod of equidimension, and application scope is wider.

In the present embodiment, the positioning hook 3 includes a first coupling seat 31 and a hook body 32, the hook body 32 is fixed to one side of the first coupling seat 31, and the first coupling seat 31 is fixed to one end of the corresponding clamping bar 2. The first connecting seat 31 is fastened at one end of the corresponding clamping rod 2 by using a bolt, and is convenient to assemble and disassemble.

Further, the positioning bracket 4 comprises a second connecting seat 41 and a supporting block 42, the supporting block 42 is fixed on the second connecting seat 41, and the second connecting seat 41 is slidably connected with one end of the corresponding clamping rod 2. Further, one end of one of the clamping bars 2 connected with the second connecting seat 41 is provided with a long hole 21, a connecting member 411 is arranged on the second connecting seat 41, the connecting member 411 can be inserted into the long hole 21 to connect the second connecting seat 41 with the clamping bar 2, and the second connecting seat 41 can slide along the long hole 21. In this embodiment, one end of one of the clamping bars 2 connected with the second connecting seat 41 is provided with a connecting piece, the connecting piece is provided with a long hole 21, the connecting piece 411 adopts a bolt and a nut, the second connecting seat 41 is connected with the corresponding clamping bar 2 by utilizing the matching of the bolt and the nut, the slippage of the second connecting seat 41 is avoided, and the bolt can slide left and right in the long hole 21, so that the second connecting seat 41 can slide left and right to adapt to valve rods with different sizes, and the hook body 32 and the supporting block 42 are respectively clamped at two ends of the valve rod to position the valve rod.

Further, a hook groove 321 is provided in the hook body 32, a recessed groove 421 is provided in the holder 42, and a longitudinal center line of the hook groove 321 coincides with a longitudinal center line of the recessed groove 421. The both ends of valve rod all are equipped with the constant head tank, can make the one end joint of valve rod in hook groove 321, and the other end joint is in recess 421, and then fixes a position the valve rod. Meanwhile, the support block 42 can slide left and right, so that the distance between the hook groove 321 and the groove 421 can be larger or smaller, and the valve rod support is suitable for valve rods with different sizes.

In other embodiments, the supporting block 42 is provided with a pillar, the pillar is telescopically inserted into the second connecting seat 41, and the second connecting seat 41 is provided with a locking member, which can lock or unlock the pillar and the second connecting seat 41. Specifically, the stand is fixed in the bottom of tray 42, has seted up threaded hole on the second connecting seat 41, and stand threaded connection is in threaded hole, and rotatory stand can make the different heights of stand lift, and the retaining member adopts the bolt, and its threaded connection is on second connecting seat 41, and after the stand rose to predetermined height, utilized the bolt to push up the stand, avoided the stand rotation to make the stand keep this height. The support block 42 can be lifted to different heights so as to be suitable for the inclined valve rod, and the application range is wider.

In other embodiments, the positioning hooks 3 can be slidably connected with the corresponding clamping bars 2, and the positioning brackets 4 can be fixedly connected with the corresponding clamping bars 2.

Optionally, the hook groove 321 is an n-shaped structure. Further, the groove 421 has a u-shaped structure. The opening of the hook groove 321 faces downwards, the opening of the groove 421 faces upwards, so that the clamping force of the hook body 32 on the valve rod faces downwards, the clamping force of the support block 42 on the valve rod faces upwards, the support block 42 serves as a fulcrum, a lever principle is formed, and the valve rod is easily disassembled.

Optionally, each clamping bar 2 includes a bending section 22 and two vertical sections 23, the vertical sections 23 are respectively located at two ends of the bending section 22, and the bending sections 22 of the two clamping bars 2 are rotatably connected through a pin 1. The clamping rod 2 with the structure is easier to operate.

Optionally, a hand grip portion 24 is disposed at an end of the clamping rod 2 away from the positioning hook 3 or the positioning support 4. In use, the worker can hold the grip portion 24 to control the opening and closing of the clamping rod 2 and the magnitude of the clamping force.

In other embodiments, the hand gripping portion 24 may also be provided with a non-slip pad. A non-slip mat with a non-slip effect, such as a silicone sleeve or a rubber sleeve, for example, may be sleeved on the outer side of the grip portion 24. The grip portion 24 may be provided with anti-slip lines or protrusions to achieve an anti-slip effect.

During operation, location hook 3 is placed in the one end of ordinary bleed valve rod, and location holds in the palm 4 and places in the other end of valve rod, and the portion 24 of holding of the hand of clamping bar 2 is held to the hand, overcomes the pretightning force of valve rod, takes out the valve rod from booster valve rod seat fast, and then carries out valve rod pretightning force according to the experimental demand and adjusts. After the adjustment, place locating hook 3 and location support 4 at the both ends of valve rod once more, through holding portion 24 of holding, overcome the pretightning force of valve rod, adorn the valve rod smoothly in the valve rod seat of booster to realize pretightning force valve rod quick assembly disassembly.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A valve rod pretightening force adjusting mechanism for a supercharger air release valve is characterized by comprising a pin shaft (1) and two clamping rods (2), wherein the clamping rods (2) are rotatably connected through the pin shaft (1);

one of the two clamping rods (2) is provided with a positioning hook (3), the other clamping rod is provided with a positioning support (4), two ends of the valve rod are respectively clamped with the positioning hook (3) and the positioning support (4), and the directions of clamping forces acting on the valve rod by the positioning hook (3) and the positioning support (4) are opposite;

the positioning hooks (3) and the positioning supports (4), one of the positioning hooks is fixedly connected with the corresponding clamping rod (2), and the other positioning hook is connected with the corresponding clamping rod (2) in a sliding manner.

2. The valve rod pretightening force adjusting mechanism according to claim 1, wherein the positioning hook (3) includes a first connecting seat (31) and a hook body (32), the hook body (32) is fixed on one side of the first connecting seat (31), and the first connecting seat (31) is fixed on one end of the corresponding clamping rod (2).

3. The valve rod pretightening force adjusting mechanism according to claim 2, wherein the positioning bracket (4) includes a second connecting seat (41) and a bracket (42), the bracket (42) is fixed on the second connecting seat (41), and the second connecting seat (41) is slidably connected with one end of the corresponding clamping rod (2).

4. The valve rod pretightening force adjusting mechanism according to claim 3, wherein one end of one of the clamping rods (2) connected with the second connecting seat (41) is provided with a long hole (21), the second connecting seat (41) is provided with a connecting piece (411), the connecting piece (411) can be inserted into the long hole (21) to connect the second connecting seat (41) with the clamping rod (2), and the second connecting seat (41) can slide along the long hole (21).

5. The valve rod pretightening force adjusting mechanism according to claim 4, wherein a stand column is arranged on the support block (42), the stand column is telescopically inserted into the second connecting seat (41), a locking member is arranged on the second connecting seat (41), and the locking member can lock or unlock the stand column and the second connecting seat (41).

6. The valve rod pretightening force adjusting mechanism according to claim 4, wherein a hook groove (321) is formed in the hook body (32), a groove (421) is formed in the support block (42), and a center line of the hook groove (321) in the length direction coincides with a center line of the groove (421) in the length direction.

7. The valve stem preload force adjustment mechanism according to claim 6, wherein the hook groove (321) is of n-shaped configuration.

8. The valve stem preload adjustment mechanism as claimed in claim 7, wherein the groove (421) is of u-shaped configuration.

9. The valve rod pretightening force adjusting mechanism according to any one of claims 1 to 8, wherein the clamping rod (2) includes a bent section (22) and two vertical sections (23), the vertical sections (23) are respectively located at two ends of the bent section (22), and the bent sections (22) of the two clamping rods (2) are rotatably connected through the pin shaft (1).

10. The valve rod pretightening force adjusting mechanism according to any one of claims 1 to 8, wherein a grip portion (24) is provided at an end of the clamping rod (2) away from the positioning hook (3) or the positioning bracket (4).