Elastic collar mechanism

Abstract

The utility model discloses an elastic collar mechanism which comprises a lower gasket, an upper gasket, a limiting assembly and a speed reducing assembly, and is characterized in that a first spring is arranged at the top of the lower gasket, a sliding groove is formed in the top of the lower gasket, the limiting assembly is arranged in the sliding groove and comprises a sliding plate, a second spring and a limiting rod, and the upper gasket is arranged above the lower gasket; when the lower gasket is installed, the sliding plate is pulled to drive the limiting rod to be contained in the sliding groove and extrude the second spring, at the moment, the lower gasket is pressed downwards to be in interference connection with the turbocharger, the sliding plate is loosened, and the second spring pushes the sliding plate and the limiting rod to be inserted into a turbocharger connecting hole. And the firmness of the connection with the turbocharger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbochargers, in particular to an elastic retaining ring mechanism. Background Art

[0002] The centrifugal compressor and turbine are combined into a whole, called a turbocharger. The main difference between it and the gas turbine is that the unit does not have a combustion chamber and corresponding system, the turbine uses the exhaust energy of the reciprocating internal combustion engine to work, and the compressed air provided by its centrifugal compressor is used as the charge of the reciprocating internal combustion engine. In a turbocharger, the compressor impeller and turbine are assembled on the same rotating shaft, which is called a rotor. There are also seals and thrust plates placed on the same rotor shaft and rotating together.

[0003] The rotor is the key component of the turbocharger. In addition, the turbocharger also includes the bearing device, lubrication and cooling system, sealing and heat insulation device, and fixing parts such as compressor housing, intermediate housing and turbine housing that are necessary for normal operation.

[0004] Turbochargers are divided into radial flow turbochargers and axial flow turbochargers depending on the type of turbine.

[0005] The retaining ring structure used in the existing turbocharger is only connected by interference fit, which is easy to loosen, so the maintenance frequency is high.

[0006] Based on this, the present utility model is proposed. Utility Model Content

[0007] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0008] In view of the above problems and / or the problems existing in an existing elastic retaining ring mechanism, the present utility model is proposed.

[0009] Therefore, the purpose of the utility model is to provide an elastic retaining ring mechanism, by arranging a first spring on the top of the lower gasket, opening a slide groove on the top of the lower gasket, and arranging a limit assembly inside the slide groove, including a slide plate, a second spring and a limit rod, an upper gasket is arranged above the lower gasket, and the bottom of the upper gasket is connected with the top of the first spring. When installing the lower gasket, the slide plate is pulled to drive the limit rod to be retracted into the slide groove and squeeze the second spring. At this time, the lower gasket is pressed down to be interference connected with the turbocharger, and the slide plate is released. The second spring pushes the slide plate and the limit rod to be inserted into the turbocharger connecting hole, thereby increasing the firmness of the connection with the turbocharger.

[0010] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0011] An elastic retaining ring mechanism, comprising:

[0012] A lower gasket, a first spring is installed on the top of the lower gasket, and a sliding groove is opened on the top of the lower gasket;

[0013] An upper gasket, located on the top of the lower gasket, wherein the bottom of the upper gasket is connected to the top of the first spring;

[0014] The limiting assembly comprises a slide plate slidably connected to the inside of the slide slot, a second spring installed on the side wall of the slide plate, and a limiting rod installed on the other side wall of the slide plate and extending through the inner wall of the lower gasket.

[0015] As a preferred solution of the elastic retaining ring mechanism described in the utility model, the top of the slide plate is flush with the top of the lower gasket, and a pull plate is installed on the top of the slide plate, and the pull plate extends out of the top of the slide groove.

[0016] As a preferred solution of the elastic retaining ring mechanism described in the utility model, a plurality of fixing columns are installed on the top of the lower gasket, and openings are opened on the tops of the fixing columns.

[0017] As a preferred solution of the elastic retaining ring mechanism described in the utility model, a sliding rod is installed at the bottom of the upper gasket, and the sliding rod extends into the interior of the opening.

[0018] As a preferred solution of the elastic retaining ring mechanism described in the utility model, a movable groove is opened inside the fixed column, the diameter of the movable groove is larger than the diameter of the opening, and a limiting plate is installed at the bottom end of the sliding rod, and the diameter of the limiting plate is consistent with the diameter of the movable groove.

[0019] As a preferred solution of the elastic retaining ring mechanism described in the utility model, it also includes a deceleration assembly, which includes a second fixed column installed on the top of the lower gasket, an air groove opened on the top of the second fixed column, a piston located inside the air groove, a connecting rod installed on the top of the piston and a plurality of air holes opened on the top of the piston, and the top of the connecting rod is connected to the bottom of the upper gasket.

[0020] Compared with the prior art: a first spring is arranged on the top of the lower gasket, a slide groove is opened on the top of the lower gasket, a limit assembly is arranged inside the slide groove, including a slide plate, a second spring and a limit rod, an upper gasket is arranged above the lower gasket, and the bottom of the upper gasket is connected to the top of the first spring. When installing the lower gasket, the slide plate is pulled to drive the limit rod to be retracted into the slide groove and squeeze the second spring. At this time, the lower gasket is pressed down to be interference connected with the turbocharger, the slide plate is released, and the second spring pushes the slide plate and the limit rod to be inserted into the turbocharger connecting hole, thereby increasing the firmness of the connection with the turbocharger. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 This is an overall structural diagram of an elastic retaining ring mechanism of the utility model;

[0023] Figure 2 This is a structural diagram of a lower gasket of an elastic retaining ring mechanism of the utility model;

[0024] Figure 3 This is a structural diagram of a limit assembly of an elastic retaining ring mechanism of the utility model;

[0025] Figure 4 This is a structural diagram of a gasket on an elastic retaining ring mechanism of the utility model;

[0026] Figure 5 The utility model is a structural diagram of a deceleration component of an elastic retaining ring mechanism. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The utility model provides an elastic retaining ring mechanism, wherein a first spring is arranged on the top of a lower gasket, a sliding groove is opened on the top of the lower gasket, a limiting assembly is arranged inside the sliding groove, and comprises a slide plate, a second spring and a limiting rod, an upper gasket is arranged above the lower gasket, and the bottom of the upper gasket is connected with the top of the first spring, when the lower gasket is installed, the slide plate is pulled to drive the limiting rod to be received into the sliding groove and squeeze the second spring, at which time the lower gasket is pressed down to be interference-connected with a turbocharger, the slide plate is released, and the second spring pushes the slide plate and the limiting rod to be inserted into a connecting hole of the turbocharger, thereby increasing the firmness of the connection with the turbocharger.

[0031] Figure 1-5 The figure shows a schematic diagram of a structure of an elastic retaining ring mechanism of the utility model. Figure 1-Figure 5 An elastic retaining ring mechanism of this embodiment includes a lower gasket 100, an upper gasket 200, a limiting assembly 300 and a deceleration assembly 400.

[0032] A first spring 110 is installed on the top of the lower gasket 100, a slide groove 120 is opened on the top of the lower gasket 100, a plurality of fixing columns 130 are installed on the top of the lower gasket 100, and an opening 140 is opened on the top of the fixing column 130. When the upper gasket 200 is impacted downward, the upper gasket 200 presses the first spring 110 downward, and the first spring 110 buffers the downward impact force of the upper gasket 200 to prevent the impact force from causing damage to the turbocharger.

[0033] The upper gasket 200 is located at the top of the lower gasket 100, and the bottom of the upper gasket 200 is connected to the top of the first spring 110. A sliding rod 210 is installed at the bottom of the upper gasket 200, and the sliding rod 210 extends into the interior of the opening 140. A movable groove 150 is opened inside the fixing column 130, and the diameter of the movable groove 150 is larger than the diameter of the opening 140. A limiting plate 220 is installed at the bottom end of the sliding rod 210, and the diameter of the limiting plate 220 is consistent with the diameter of the movable groove 150. When the upper gasket 200 slides up and down, the sliding rod 210 slides up and down inside the opening 140 to guide the upper gasket 200. At the same time, the limiting plate 220 slides inside the movable groove 150. When the upper gasket 200 moves upward, since the diameter of the limiting plate 220 is larger than the diameter of the opening 140, the top of the limiting plate 220 abuts against the top of the movable groove 150, limiting the upper gasket 200 to prevent the upper gasket 200 from separating upward from the lower gasket 100.

[0034] The limiting assembly 300 includes a slide plate 310 slidably connected to the inside of the slide groove 120, a second spring 320 installed on the side wall of the slide plate 310, and a limiting rod 330 installed on the other side wall of the slide plate 310 and extending through the inner wall of the lower gasket 100. The top of the slide plate 310 is flush with the top of the lower gasket 100. A pull plate 340 is installed on the top of the slide plate 310. The pull plate 340 extends out of the top of the slide groove 120. By pulling the slide plate 310 to slide inside the slide groove 120 and squeeze the second spring 320, the limiting rod 330 is installed on the other side wall of the slide plate 310 and extends through the inner wall of the lower gasket 100. 0, the limiting rod 330 follows the slide plate 310 to slide into the slide groove 120, and at this time, the lower gasket 100 is pressed down to make the lower gasket 100 and the turbocharger have an interference connection. At this time, the limiting rod 330 is axially corresponding to the turbocharger connecting hole, and the slide plate 310 is released. The second spring 320 rebounds and pushes the slide plate 310 and the limiting rod 330 to move toward the turbocharger. The limiting rod 330 extends into the turbocharger connecting hole, thereby increasing the firmness of the connection between the lower gasket 100 and the turbocharger.

[0035] The deceleration assembly 400 includes a second fixing column 410 installed on the top of the lower gasket 100, an air groove 420 opened on the top of the second fixing column 410, a piston 430 located inside the air groove 420, a connecting rod 440 installed on the top of the piston 430, and a plurality of air holes 450 opened on the top of the piston 430. The top of the connecting rod 440 is connected to the bottom of the upper gasket 200. When the upper gasket 200 moves downward, the upper gasket 200 pushes the connecting rod 440 and the piston 430 to move downward inside the air groove 420, and the air groove The air inside 420 is squeezed out through the air hole 450, and the air pressure is used in cooperation with the first spring 110 to buffer the downward impact force of the upper gasket 200. At the same time, when the first spring 110 rebounds and pushes the upper gasket 200 upward, the connecting rod 440 moves upward with the upper gasket 200, and the piston 430 moves upward inside the air groove 420. The air enters the air groove 420 through the air hole 450, and the air pressure is used to neutralize the rebound force of the first spring 110, thereby slowing down the speed at which the first spring 110 pushes the upper gasket 200 to rebound.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An elastic retaining ring mechanism, characterized in that: include: A lower gasket (100), a first spring (110) being installed on the top of the lower gasket (100), and a sliding groove (120) being provided on the top of the lower gasket (100); An upper gasket (200) is located on the top of the lower gasket (100), and the bottom of the upper gasket (200) is connected to the top of the first spring (110); The limiting assembly (300) comprises a slide plate (310) slidably connected to the inside of the slide groove (120), a second spring (320) installed on the side wall of the slide plate (310), and a limiting rod (330) installed on the other side wall of the slide plate (310) and extending through the inner wall of the lower gasket (100).

2. The elastic retaining ring mechanism according to claim 1, characterized in that: The top of the slide plate (310) is flush with the top of the lower gasket (100), and a pull plate (340) is installed on the top of the slide plate (310), and the pull plate (340) extends out of the top of the slide groove (120).

3. The elastic retaining ring mechanism according to claim 2, characterized in that: A plurality of fixing columns (130) are installed on the top of the lower gasket (100), and an opening (140) is formed on the top of the fixing column (130).

4. The elastic retaining ring mechanism according to claim 3, characterized in that: A sliding rod (210) is installed at the bottom of the upper gasket (200), and the sliding rod (210) extends into the opening (140).

5. The elastic retaining ring mechanism according to claim 4, characterized in that: A movable groove (150) is provided inside the fixed column (130), and the diameter of the movable groove (150) is larger than the diameter of the opening (140). A limiting plate (220) is installed at the bottom end of the sliding rod (210), and the diameter of the limiting plate (220) is consistent with the diameter of the movable groove (150).

6. The elastic retaining ring mechanism according to claim 5, characterized in that: It also includes a deceleration assembly (400), which includes a second fixing column (410) installed on the top of the lower gasket (100), an air groove (420) opened on the top of the second fixing column (410), a piston (430) located inside the air groove (420), a connecting rod (440) installed on the top of the piston (430) and a plurality of air holes (450) opened on the top of the piston (430), and the top end of the connecting rod (440) is connected to the bottom of the upper gasket (200).

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