Riveting threaded pull rod for assembling actuator and actuator ventilation system

Abstract

The utility model relates to a riveting threaded pull rod for assembling an actuator and an actuator ventilation system. The threaded pull rod comprises a riveting head, a connecting section, a step section and a threaded connector which are connected in sequence. The riveting head is used for being connected with a supporting cover of an actuator in a riveting mode. The diameter of the threaded connector is smaller than that of the connecting section; the threaded connector is used for being connected with the threaded sleeve and controlling the pressure by adjusting the distance. Compared with the prior art, the threaded pull rod provided by the utility model can adjust the distance and control the pressure through the threaded section, is more flexible than original parts, ensures high precision through multi-process production, is stable and firm in use, is not easy to damage, is simple to replace, and realizes the assembly of the parts without an auxiliary mounting tool in the assembly process; the problems that the auxiliary installation tool scratches the surface of the part, influences the appearance of the part and even causes deformation and damage of the part in the assembly process are solved, automatic assembly is achieved, the assembly efficiency is improved, and labor hours are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile turbochargers, in particular to a riveted threaded pull rod for assembling an actuator and an actuator ventilation system. Background Art

[0002] Turbocharging technology is widely used in the field of automobile manufacturing. In the exhaust gas turbocharger, the actuator rocker arm, pull rod and supercharger rocker arm of the supercharger form a crank-connecting rod mechanism. By controlling the opening of the exhaust gas bypass valve at the turbine end of the supercharger, the flow ratio of exhaust gas passing through the turbine and the exhaust gas bypass valve under different working conditions can be accurately controlled, thereby effectively controlling the speed of the turbocharger to achieve the boost demand.

[0003] The installation distance of the existing integrated supercharger tie rod is the distance between the installation holes at both ends, and the installation distance can only be controlled within the tolerance range, so the tie rod length is basically not adjustable, and when the pressure changes greatly, it cannot meet the use needs. In addition, the existing tie rod must be assembled with the help of auxiliary installation tools during the assembly process to realize the assembly of parts, which seriously affects the production cycle, and during the assembly process, auxiliary installation tools such as pliers will also scratch the surface of the parts, affecting the appearance of the parts, and in severe cases, causing deformation and damage to the parts.

[0004] Therefore, there is an urgent need for a pull rod that can adjust the distance to control the pressure and can be assembled without the aid of auxiliary installation tools. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and to provide a riveted threaded pull rod and an actuator ventilation system for assembling an actuator. The pressure can be controlled by adjusting the distance of the threaded section. It is more flexible than the original parts. The multi-step production ensures high precision, stable use, firmness, not easy to damage, and simple replacement.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The first object of the utility model is to provide a riveted threaded pull rod for assembling an actuator, wherein the threaded pull rod comprises a rivet head, a connecting section, a stage, and a threaded connector which are connected in sequence; the rivet head is used for riveting connection with a support cover of the actuator; the diameter of the threaded connector is smaller than the diameter of the connecting section; the threaded connector is used for connecting with a threaded sleeve and controlling the pressure by adjusting the distance.

[0008] Furthermore, the length of the rivet head is 5.7±0.05 mm and the diameter is 4.95±0.05 mm.

[0009] Furthermore, the diameter of the connecting section is 8.0-7.9 mm.

[0010] Furthermore, the connecting section is a cylinder.

[0011] Furthermore, the length of the threaded connector is 40 mm.

[0012] Furthermore, the threaded connector includes a connecting section and a threaded section connected to the connecting section; the connecting section is connected to the stage; and the diameter of the connecting section is 6 mm.

[0013] Furthermore, the threaded section is provided with a thread, the thread is an M6*1mm thread, and the pitch of the thread is 35±0.5mm.

[0014] Furthermore, the total length of the connecting section, the platform stage and the threaded connector is 144.3±0.5 mm.

[0015] Furthermore, the step is a 30° step step to ensure safety and avoid collisions caused by chamfering.

[0016] Furthermore, the threaded tie rod is a SUS303CU stainless steel tie rod.

[0017] The second object of the utility model is to provide an actuator ventilation system, including the above-mentioned riveted threaded rod for assembling an actuator, the actuator ventilation system also includes an actuator and a threaded sleeve; the actuator includes a support cover; the actuator and the threaded sleeve are connected through the riveted threaded rod for assembling the actuator; the rivet head for assembling the riveted threaded rod of the actuator is riveted to the support cover of the actuator; the threaded connection head for assembling the riveted threaded rod of the actuator is threadedly connected to the threaded sleeve.

[0018] Furthermore, the actuator ventilation system also includes a crank and a bypass valve assembly; the crank is connected to the bypass valve assembly; and the crank is connected to the threaded sleeve.

[0019] Furthermore, the bypass valve assembly includes a valve body and a valve core matched with the valve body.

[0020] Furthermore, the valve core is connected to a crank; and the crank is rotatably connected to a threaded sleeve.

[0021] Furthermore, the actuator also includes a spring, a rubber sealing strip, a first cover body, and a second cover body; the spring is crimped between the first cover body and the support cover; the riveted threaded pull rod used to assemble the actuator passes through the first cover body and is movably connected to the first cover body; the rubber sealing strip is sleeved on the outside of the support cover; the first cover body and the second cover body are connected; the rubber sealing strip is sleeved between the first cover body and the second cover body.

[0022] Furthermore, the second cover body is provided with a vent hole for externally connecting to an air compressor.

[0023] Furthermore, after the riveted joint is machined, high-frequency high-temperature annealing and baking are required to prevent the riveted joint from cracking when the riveted joint is assembled and welded (riveted) with the support cover.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] 1) The technical solution provides a riveted threaded pull rod for assembling an actuator, which can adjust the distance of the threaded section to control the pressure. It is more flexible than the original parts, and the multi-process production ensures high precision, stable use, firm and not easy to damage, and easy to replace.

[0026] 2) The technical solution provides a riveted threaded pull rod for assembling an actuator, and a rivet joint is provided. During the assembly process, parts can be assembled without the aid of auxiliary installation tools, which will not affect the production rhythm. It avoids the problem that auxiliary installation tools such as pliers scratch the surface of parts during the assembly process, affecting the appearance of parts, and causing deformation and damage of parts in severe cases. Automated assembly is realized, assembly efficiency is improved, and labor hours are saved.

[0027] 3) The technical solution provides an actuator ventilation system, which is provided for assembling the actuator riveted threaded pull rod. One side can adjust the distance to control the pressure through the threaded connection, which is more flexible. The riveted structure of the riveted head and the support cover on the other side is stable, firm, not easy to damage, and easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a riveted threaded pull rod for assembling an actuator in Example 1 of the utility model.

[0029] Figure 2 This is a schematic diagram of the dimensions of a riveted threaded pull rod used to assemble an actuator in Example 2 of the utility model.

[0030] Figure 3 This is a schematic diagram of the structure of the actuator ventilation system in Example 3 of the present utility model.

[0031] in:

[0032] 1. Riveted joint; 2. Connecting section; 3. Stage; 4. Threaded connector; 4-1. Connecting section; 4-2. Threaded section; 5. Actuator; 5-1. Support cover; 5-2. Spring; 5-3. Rubber sealing sleeve; 5-4. First cover body; 5-5. Second cover body; 5-6. Vent hole; 6. Threaded sleeve; 7. Crank; 8. Bypass valve assembly; 8-1. Valve core; 8-2. Valve body. DETAILED DESCRIPTION

[0033] The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. The features such as component models, material names, connection structures, etc. that are not clearly described in this technical solution are all regarded as common technical features disclosed in the prior art.

[0034] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements; "up", "down", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may change. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] It should be noted that, in the present utility model, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] The content of the utility model is further described in detail below in conjunction with specific embodiments.

[0037] Example 1

[0038] like Figure 1 As shown, in this embodiment, a riveted threaded rod is used to assemble an actuator, and the threaded rod includes a rivet head 1, a connecting section 2, a stage section 3, and a threaded connector 4 which are connected in sequence; the rivet head 1 is used to be riveted and connected to the support cover 5-1 of the actuator 5; the diameter of the threaded connector 4 is smaller than the diameter of the connecting section 2; the threaded connector 4 is used to be connected to the threaded sleeve 6 and control the pressure by adjusting the distance.

[0039] The connecting section 2 is a cylinder.

[0040] The threaded connector 4 includes a connecting section 4 - 1 and a threaded section 4 - 2 connected to the connecting section 4 - 1 ; the connecting section 4 - 1 is connected to the stage 3 .

[0041] The threaded section 4 - 2 is provided with external threads.

[0042] The threaded sleeve 6 is provided with an internal thread, which matches the external thread on the threaded section 4 - 2 .

[0043] The stage 3 is a step stage.

[0044] The threaded pull rod is a SUS303CU stainless steel pull rod.

[0045] The pressure can be controlled by rotating the threaded pull rod and adjusting the connection length between the threaded connector 4 and the threaded sleeve 6 .

[0046] Example 2

[0047] like Figure 2 As shown, this embodiment, based on Embodiment 1, further includes the following settings:

[0048] The length of the rivet head 1 is 5.7±0.05 mm, and the diameter is 4.95±0.05 mm.

[0049] The diameter of the connecting section 2 is 8.0-7.9 mm.

[0050] The length of the threaded connector 4 is 40 mm.

[0051] The diameter of the connecting section 4 - 1 is 6 mm.

[0052] The thread segment 4 - 2 is provided with a M6*1mm thread, and the thread pitch is 35±0.5mm.

[0053] The total length of the connecting section 2, the stage 3 and the threaded connector 4 is 144.3±0.5 mm.

[0054] The step 3 is a 30° step, which is used to ensure safety and avoid collisions caused by chamfering.

[0055] The threaded pull rod of the present application is processed by a high-precision CNC lathe, and the processing process includes the following steps:

[0056] S1. Process the riveted end, the size is 4.95±0.05mm, S2. Process the total length chamfer, the size is 144.3±0.5mm, S3. Process the outer circle, the size is 8.0-7.9mm, S4. Grind the outer circle, the size is 0.05mm, S5. Roll the thread, M6*1mm thread, S6. High temperature rivet joint, S7. Clean, S8. Dry at 130℃ / 20min.

[0057] Example 3

[0058] This embodiment provides an actuator ventilation system based on the embodiment 1. The actuator ventilation system of this embodiment includes the above-mentioned riveted threaded pull rod for assembling the actuator. In this embodiment, the shape of the riveted head 1 changes after riveting.

[0059] The actuator ventilation system also includes an actuator 5 and a threaded sleeve 6; the actuator 5 includes a support cover 5-1; the actuator 5 and the threaded sleeve 6 are connected through the riveted threaded pull rod for assembling the actuator; the rivet head 1 for assembling the riveted threaded pull rod of the actuator is riveted to the support cover 5-1 of the actuator 5; the threaded connection head 4 for assembling the riveted threaded pull rod of the actuator is threadedly connected to the threaded sleeve 6.

[0060] The actuator ventilation system further comprises a crank 7 and a bypass valve assembly 8 ; the crank 7 is connected to the bypass valve assembly 8 ; the crank 7 is connected to the threaded sleeve 6 .

[0061] The bypass valve assembly 8 includes a valve body 8-2 and a valve core 8-1 matched with the valve body 8-2. The specific structure and working principle of the bypass valve assembly 8 can be realized by referring to the prior art, and the present application does not make any improvements.

[0062] The valve core 8 - 1 is connected to the crank 7 ; the crank 7 is rotatably connected to the threaded sleeve 6 .

[0063] The actuator 5 also includes a spring 5-2, a rubber sealing sleeve 5-3, a first cover body 5-4, and a second cover body 5-5; the spring 5-2 is crimped between the first cover body 5-4 and the support cover 5-1; the riveted threaded pull rod used to assemble the actuator passes through the first cover body 5-4 and is movably connected to the first cover body 5-4; the rubber sealing sleeve 5-3 is sleeved on the outside of the support cover 5-1; the first cover body 5-4 and the second cover body 5-5 are connected; the rubber sealing sleeve 5-3 is arranged between the first cover body 5-4 and the second cover body 5-5.

[0064] The second cover body 5 - 5 is provided with a vent hole 5 - 6 for connecting to an external compressor.

[0065] After the riveted joint 1 is machined, high-frequency high-temperature annealing and baking are required to prevent the riveted joint 1 from cracking during the assembly and welding of the riveted joint 1 and the support cover 5 - 1 .

[0066] The process for assembling the actuator riveted threaded pull rod and the actuator 5 comprises the following steps:

[0067] S1. First, assemble the riveted joint 1 of the threaded pull rod onto the support cover 5-1 of the actuator 5 by welding and riveting. S2. Assemble the spring and the rubber sealing strip. S3. Assemble the first cover body 5-4 and the second cover body 5-5, wherein the connecting section 2 passes through the first cover body 5-4. S4. Then automatically check the sealing performance and pressure.

[0068] The crank 7 and the bypass valve assembly 8 are on the turbine end of the automobile engine supercharger.

[0069] The working method comprises the following steps: the threaded connector 4 of the threaded tie rod is threadedly connected with the threaded sleeve 6, and the actuator 5, the threaded tie rod, the threaded sleeve 6, and the crank 7 form a crank-connecting rod mechanism. The vent hole 5-6 is externally connected to the compressor outlet pressure, which generates pressure on the rubber sealing strip sleeve 5-3, presses the threaded tie rod to move toward the bypass valve assembly 8, further compresses the spring 5-2, and the spring 5-2 generates a force. The threaded tie rod controls the bypass valve assembly 8 to open through the threaded sleeve 6 and the crank 7 until the spring 5-2 generates a force to make the threaded tie rod move away from the bypass valve assembly 8, and the threaded tie rod controls the bypass valve assembly 8 to close through the threaded sleeve 6 and the crank 7.

[0070] During adjustment, the actuator 5 can be turned to rotate the threaded rod so that the threaded rod moves relative to the threaded sleeve 6, thereby conveniently adjusting the control pressure.

[0071] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A riveted threaded tie rod for assembling an actuator, characterized in that: The threaded pull rod comprises a rivet joint (1), a connecting section (2), a stage (3), and a threaded connecting head (4) which are connected in sequence; The rivet head (1) is used for riveting connection with a support cover (5-1) of an actuator (5); The diameter of the threaded connector (4) is smaller than the diameter of the connecting section (2); The threaded connector (4) is used to connect with the threaded sleeve (6) and to control the pressure by adjusting the distance.

2. A riveted threaded tie rod for assembling an actuator according to claim 1, characterized in that: The rivet head (1) has a length of 5.65-5.75 mm and a diameter of 4.9-5.0 mm.

3. The riveted threaded tie rod for assembling an actuator according to claim 1, characterized in that: The diameter of the connecting section (2) is 7.9-8.0 mm.

4. A riveted threaded tie rod for assembling an actuator according to claim 1, characterized in that: The length of the threaded connector (4) is 40 mm; The threaded connector (4) comprises a connecting section (4-1) and a threaded section (4-2) connected to the connecting section (4-1); The connecting section (4-1) is connected to the stage (3); The diameter of the connecting section (4-1) is 6 mm; The threaded section (4-2) is provided with a thread, the thread is an M6*1mm thread, and the thread pitch is 34.5-35.5mm.

5. The riveted threaded tie rod for assembling an actuator according to claim 1, characterized in that: The total length of the connecting section (2), the platform section (3) and the threaded connector (4) is 144.25 to 144.35 mm.

6. A riveted threaded tie rod for assembling an actuator according to claim 1, characterized in that: The step stage (3) is a 30° step stage.

7. A riveted threaded tie rod for assembling an actuator according to claim 1, characterized in that: The threaded pull rod is a SUS303CU stainless steel pull rod.

8. An actuator ventilation system for assembling an actuator riveted threaded tie rod according to any one of claims 1 to 7, characterized in that: The actuator ventilation system further comprises an actuator (5) and a threaded sleeve (6); The actuator (5) comprises a support cover (5-1); The actuator (5) and the threaded sleeve (6) are connected via the riveted threaded tie rod used to assemble the actuator; The rivet joint (1) for assembling the riveted threaded pull rod of the actuator is riveted to the support cover (5-1) of the actuator (5); The threaded connection head (4) for assembling the actuator riveted threaded pull rod is threadedly connected to the threaded sleeve (6).

9. The actuator ventilation system according to claim 8, characterized in that: The actuator ventilation system also includes a crank (7) and a bypass valve assembly (8); The crank (7) is connected to a bypass valve assembly (8); The crank (7) is connected to the threaded sleeve (6).

10. The actuator ventilation system according to claim 8, characterized in that: The actuator (5) also includes a spring (5-2), a rubber sealing sleeve (5-3), a first cover body (5-4), and a second cover body (5-5); The spring (5-2) is pressed between the first cover body (5-4) and the support cover (5-1); The riveted threaded pull rod used for assembling the actuator passes through the first cover body (5-4) and is movably connected to the first cover body (5-4); The rubber sealing strip sleeve (5-3) is sleeved on the outside of the support cover (5-1); The first cover body (5-4) is connected to the second cover body (5-5); The rubber sealing strip sleeve (5-3) is arranged between the first cover body (5-4) and the second cover body (5-5).

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