Turbocharger actuator pressure fine adjustment device

Abstract

The utility model relates to the technical field of turbochargers, and discloses a turbocharger actuator pressure fine adjustment device which comprises a device body and a turbine box assembly, a butt joint groove is formed in the device body, a butt joint block is connected in the butt joint groove in a sliding mode, and the butt joint block is arranged at the bottom of the turbine box assembly. The special-shaped rotating disc is rotated to push the four movable blocks to be away from each other along the four guide rods and extrude reset springs on the guide rods, at the moment, the butt-joint blocks can be inserted into butt-joint grooves in the device body, when the butt-joint blocks are completely inserted into the butt-joint grooves, the special-shaped rotating disc can be rotated again, the four movable blocks are not supported, and the butt-joint blocks are separated from the butt-joint grooves. And four movable blocks can be driven to get close to each other through elastic potential energy of reset springs on four guide rods, so that limiting insertion blocks on the four movable blocks are inserted into limiting insertion grooves in butt joint blocks, mounting and fixing of the turbine box assembly are completed, and on the contrary, dismounting of the turbine box assembly can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbochargers, in particular to a pressure fine-tuning device for a turbocharger actuator. Background Art

[0002] In order to improve the low-speed performance and acceleration of the engine, the turbocharger uses a turbine box with a smaller flow area. When the engine is operating at low speed, the turbocharger speed is increased, thereby increasing the pressure ratio and air flow, so that more fuel can be fully burned and the low-speed performance and acceleration of the engine are improved.

[0003] Patent application number CN200720062730.X discloses a turbocharger actuator pressure fine-tuning device. The device consists of a turbine housing assembly, an actuator sleeve connector with a left-handed threaded locking nut, an actuator sleeve intermediate piece with left-handed and right-handed internal threads at both ends, and an actuator push rod with a right-handed threaded locking nut. The actuator sleeve connector has a connecting pin hole at one end and a left-handed external thread at the other end. The actuator sleeve connector is secured to the drive pin of the turbine housing assembly through the connecting pin hole. The actuator sleeve connector and the actuator push rod are threadedly connected to the actuator sleeve intermediate piece and locked with left-handed and right-handed threaded locking nuts. The fine-tuning device utilizes both left-handed and right-handed threaded adjustment methods. By rotating the actuator sleeve intermediate piece, which has left-handed and right-handed threads at both ends, the preload force of the spring in the bypass valve actuator assembly can be precisely adjusted.

[0004] However, the turbine box assembly in the turbocharger actuator pressure fine-tuning device involved in this patent is prone to wear and damage after long-term use, making it inconvenient for operators to replace it. Summary of the Invention

[0005] Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a turbocharger actuator pressure fine-tuning device to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a turbocharger actuator pressure fine-tuning device, comprising a device body and a turbine box assembly, the device body being provided with a docking groove, a docking block being slidably connected in the docking groove, the docking block being arranged at the bottom of the turbine box assembly, the device body being provided with a transmission cavity, a special-shaped rotating disk being rotatably installed in the transmission cavity, four guide rods being provided in the transmission cavity, a movable block being slidably installed on the guide rod, a limit plug being protruding from the movable block, four limit slots being provided on the docking block that are adapted to the limit plug, a return spring being sleeved on the guide rod, and two mutually symmetrical rollers being rotatably installed on the movable block.

[0008] Preferably, a guide hole is provided on the movable block, and the size of the guide hole is adapted to the guide rod.

[0009] Preferably, a groove is formed on one end of the movable block away from the limiting plug block, and the two rollers are symmetrically arranged in the groove.

[0010] Preferably, the plurality of rollers and the special-shaped rotating disk are on the same horizontal line.

[0011] Preferably, the device body is provided with four guide grooves, which are evenly arranged along the circumferential direction, and the docking block is provided with four guide blocks protruding outwards and matching with the guide grooves.

[0012] Preferably, a rotating shaft is rotatably installed in the transmission cavity, the rotating shaft is installed on the special-shaped rotating disk, and one end of the rotating shaft passing through the transmission cavity is connected to an adjusting knob.

[0013] Preferably, a limiting ring is provided on the rotating shaft, and a limiting rotation groove adapted to the limiting ring is provided on the device body.

[0014] Compared with the prior art, the present invention provides a turbocharger actuator pressure fine-tuning device, which has the following beneficial effects:

[0015] The utility model is provided with a turbine box assembly, a docking block and a movable block, etc., so that the four movable blocks can be pushed away from each other along the four guide rods by rotating the special-shaped rotating disk, and the return springs on the guide rods are squeezed. At this time, the docking block can be inserted into the docking groove on the device body. When the docking block is fully inserted into the docking groove, the special-shaped rotating disk can be rotated again, so that the four movable blocks lose their support, and then the elastic potential energy of the return springs on the four guide rods can be used to drive the four movable blocks to move closer to each other, so that the limiting plugs on the four movable blocks are inserted into the limiting slots on the docking block, completing the installation and fixation of the turbine box assembly. Conversely, the turbine box assembly can be removed. The overall operation is simple and convenient, so that the operator can quickly disassemble and replace the turbine box assembly, thereby ensuring the normal operation of the turbocharger actuator pressure fine-tuning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a side cross-sectional structural diagram of the movable block, guide rod, special-shaped rotating disk and rotating shaft of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the special-shaped rotating disk, movable block, roller and other structures of the present invention;

[0019] Figure 4This is a bottom-view cross-sectional structural diagram of the guide block, guide groove, docking block and other structures of the present invention.

[0020] Among them: 1. Device body; 2. Turbine box assembly; 3. Docking block; 4. Transmission chamber; 5. Docking groove; 6. Rotating shaft; 7. Adjusting knob; 8. Limit rotation groove; 9. Limiting ring; 10. Special-shaped rotating disk; 11. Movable block; 12. Limiting slot; 13. Limiting plug-in block; 14. Guide rod; 15. Reset spring; 16. Roller; 17. Guide block; 18. Guide groove. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] See also Figure 1-4 , a turbocharger actuator pressure fine-tuning device includes a device body 1 and a turbine box assembly 2, a docking groove 5 is provided on the device body 1, a docking block 3 is slidably connected in the docking groove 5, and the docking block 3 is arranged at the bottom of the turbine box assembly 2, a transmission chamber 4 is provided in the device body 1, a special-shaped rotating disk 10 is rotatably installed in the transmission chamber 4, four guide rods 14 are provided in the transmission chamber 4, a movable block 11 is slidably installed on the guide rod 14, a limit plug 13 is convexly provided on the movable block 11, four limit slots 12 adapted to the limit plug 13 are provided on the docking block 3, a return spring 15 is sleeved on the guide rod 14, and two mutually symmetrical rollers 16 are rotatably installed on the movable block 11.

[0025] The four movable blocks 11 can be pushed away from each other along the four guide rods 14 by rotating the special-shaped rotating disk 10, and the return springs 15 on the guide rods 14 can be squeezed. At this time, the docking block 3 can be inserted into the docking groove 5 on the device body 1. When the docking block 3 is fully inserted into the docking groove 5, the special-shaped rotating disk 10 can be rotated again so that the four movable blocks 11 lose their support, and then the elastic potential energy of the return springs 15 on the four guide rods 14 can drive the four movable blocks 11 to move closer to each other, so that the limiting plugs 13 on the four movable blocks 11 are inserted into the limiting slots 12 on the docking block 3, completing the installation and fixation of the turbine box assembly 2. Conversely, the turbine box assembly 2 can be removed. The overall operation is simple and convenient, so that the operator can quickly disassemble and replace the turbine box assembly 2 to ensure the normal operation of the turbocharger actuator pressure fine-tuning device.

[0026] Specifically, in this embodiment, a guide hole is opened on the movable block 11 , and the size of the guide hole is adapted to the guide rod 14 .

[0027] By providing the guide hole, the movable block 11 can slide along the guide rod 14 through the guide hole, thereby limiting the moving direction of the movable block 11 .

[0028] Specifically, in this embodiment, a groove is formed at one end of the movable block 11 away from the limiting plug block 13 , and the two rollers 16 are symmetrically arranged in the groove.

[0029] Specifically, in this embodiment, the plurality of rollers 16 and the special-shaped rotating disk 10 are located on the same horizontal line.

[0030] Specifically, in this embodiment, four guide grooves 18 are formed on the device body 1 , and the four guide grooves 18 are evenly arranged along the circumferential direction. Four guide blocks 17 adapted to the guide grooves 18 are protruded outwardly from the docking block 3 .

[0031] By arranging the guide groove 18 and the guide block 17 , the docking block 3 can be guided when being inserted into the docking groove 5 , thereby preventing the limiting slot 12 from deviating from the limiting block 13 after insertion, resulting in failure to fix.

[0032] Specifically, in this embodiment, a rotating shaft 6 is rotatably installed in the transmission cavity 4 , the rotating shaft 6 is installed on the special-shaped rotating disk 10 , and one end of the rotating shaft 6 that passes through the transmission cavity 4 is connected to the adjusting knob 7 .

[0033] By setting the adjusting knob 7 , the special-shaped rotating disk 10 can be driven to rotate by rotating the adjusting knob 7 .

[0034] Specifically, in this embodiment, a limit ring 9 is provided on the rotating shaft 6 , and a limit rotation groove 8 adapted to the limit ring 9 is opened on the device body 1 .

[0035] By cooperating with the limiting rotation groove 8 and the limiting ring 9, the position of the rotating shaft 6 can be restricted to prevent the special-shaped rotating disk 10 from deviating from the original position and causing the four movable blocks 11 to be unable to contact and transmit.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turbocharger actuator pressure fine-tuning device, comprising a device body and a turbine housing assembly, characterized in that: The device body is provided with a docking groove, in which a docking block is slidably connected, and the docking block is arranged at the bottom of the turbine box assembly. The device body is provided with a transmission cavity, in which a special-shaped rotating disk is rotatably installed, and four guide rods are provided in the transmission cavity, on which a movable block is slidably installed, and a limit plug-in block is convexly provided on the movable block, and the docking block is provided with four limit slots adapted to the limit plug-in block, a return spring is sleeved on the guide rod, and two mutually symmetrical rollers are rotatably installed on the movable block.

2. The turbocharger actuator pressure fine-tuning device according to claim 1, characterized in that: A guide hole is provided on the movable block, and the size of the guide hole is adapted to the guide rod.

3. The turbocharger actuator pressure fine-tuning device according to claim 1, characterized in that: A groove is formed on one end of the movable block away from the limiting plug-in block, and two rollers are symmetrically arranged in the groove.

4. The turbocharger actuator pressure fine-tuning device according to claim 1, characterized in that: The plurality of rollers and the special-shaped rotating disk are located on the same horizontal line.

5. The turbocharger actuator pressure fine-tuning device according to claim 1, characterized in that: The device body is provided with four guide grooves, which are evenly arranged along the circumferential direction; the docking block is provided with four guide blocks protruding outwards and matching with the guide grooves.

6. The turbocharger actuator pressure fine-tuning device according to claim 1, characterized in that: A rotating shaft is rotatably installed in the transmission cavity, the rotating shaft is installed on the special-shaped rotating disk, and one end of the rotating shaft that passes through the transmission cavity is connected to an adjusting knob.

7. The turbocharger actuator pressure fine-tuning device according to claim 6, characterized in that: A limiting ring is provided on the rotating shaft, and a limiting rotation groove adapted to the limiting ring is opened on the device body.

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