A worm and gear clamp based on an air intake pipeline

Abstract

The utility model discloses a worm and gear hoop based on air intake pipeline relates to engine field. This worm and gear hoop based on air intake pipeline, including hoop body and adaptive electric torque gun, the hoop body includes annular steel band and is located worm and gear locking mechanism at annular steel band one end, the annular steel band is used for the connecting part of air intake pipeline of set, worm and gear locking mechanism is equipped with with electric torque gun matched transmission interface. This worm and gear hoop based on air intake pipeline, through two -stage speeder of electric torque gun and tighten mode, first -class high -speed and tighten to 60% of set torque can guarantee production efficiency, and the second -class low -speed and tighten to set torque can reduce annular steel band to air intake pipeline elastomer material's excessive compression, reduces the creep and stress relaxation, and promotes the clamping force stability.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, specifically to a worm gear clamp based on an intake manifold. Background Technology

[0002] With increasingly stringent emission requirements for automobiles and the pursuit of power and fuel economy, more and more engines are equipped with turbochargers to optimize performance. When a turbocharger is working, the gas in the intake manifold is in a high-temperature and high-pressure state, requiring worm gear clamps to reliably fix and seal the pipe connections.

[0003] In existing technologies, worm gear clamps mostly use a fixed speed tightening method: if the speed is too high, it can easily damage the annular steel strip of the clamp body or the worm gear locking mechanism; if the speed is too low, it will reduce the production cycle and affect efficiency. At the same time, the elastomeric material of the intake pipe will undergo creep and stress relaxation after the clamp is tightened, resulting in a decrease in the clamping force of the annular steel strip, affecting the connection stability and sealing performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a worm gear clamp based on an intake pipe, which solves the problems of easy damage or low efficiency in existing methods of tightening worm gear clamps at a fixed speed.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a worm gear clamp based on an intake pipe, comprising a clamp body and a matching electric torque gun; the clamp body includes an annular steel strip and a worm gear locking mechanism provided at one end of the annular steel strip, the annular steel strip is used to be sleeved on the connection part of the intake pipe, and the worm gear locking mechanism is provided with a transmission interface that matches the electric torque gun; The electric torque gun is configured to have a two-stage speed-controlled tightening mode. The first stage tightens the clamp body to 60% of the set torque at a set high speed, and the second stage tightens the clamp body to the set torque at a lower speed than the first stage.

[0006] Preferably, the worm gear locking mechanism includes a housing and a worm gear and a worm that mesh with each other inside the housing, with the end of the worm gear fixedly connected to the transmission interface.

[0007] Preferably, the outer side of the annular steel strip has multiple through drive holes, and the worm gear is engaged with the drive holes.

[0008] Preferably, the two ends of the annular steel strip are connected by a worm gear locking mechanism to form an annular structure with an adjustable diameter.

[0009] Preferably, the inner wall of the annular steel strip is provided with an elastic sealing layer, which is used to fit against the outer wall of the air intake pipe.

[0010] Preferably, the transmission interface between the output end of the electric torque gun and the end of the worm gear is a matching polygonal structure to realize power transmission.

[0011] Preferably, the free end of the annular steel strip is provided with a scale marking for indicating the degree of tightening.

[0012] Its beneficial effects are as follows: 1. This worm gear clamp based on the intake pipe uses a two-stage speed-changing tightening mode of an electric torque gun. The first stage tightens at a high speed to 60% of the set torque to ensure production efficiency, while the second stage tightens at a low speed to the set torque to reduce excessive compression of the intake pipe elastomer material by the annular steel belt, reduce creep and stress relaxation, and improve clamping force stability.

[0013] 2. This worm gear clamp based on the intake pipe, the worm gear locking mechanism engages with the drive hole of the annular steel belt through the worm gear, and cooperates with the power transmission of the worm and the transmission interface to achieve precise adjustment of the diameter of the annular steel belt and ensure the sealing effect; the elastic sealing layer on the inner wall of the annular steel belt can enhance the fit and sealing with the outer wall of the intake pipe, and the scale markings on the free end make it easy to intuitively observe the tightening degree and improve the assembly reliability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the clamp body of this utility model.

[0016] In the diagram: 1. Clamp body; 11. Annular steel belt; 111. Drive hole; 12. Worm gear locking mechanism; 121. Transmission interface; 2. Electric torque gun. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] This utility model discloses a worm gear clamp based on an intake pipe, according to the attached... Figures 1-2 As shown, it includes a clamp body 1 and a matching electric torque gun 2; the clamp body 1 includes an annular steel belt 11 and a worm gear locking mechanism 12 located at one end of the annular steel belt 11. The annular steel belt 11 is used to be sleeved on the connection part of the air intake pipe, and the worm gear locking mechanism 12 is provided with a transmission interface 121 that matches the electric torque gun 2. The electric torque gun 2 is configured to have a two-stage speed-controlled tightening mode. The first stage tightens the clamp body 1 to 60% of the set torque at a set high speed, and the second stage tightens the clamp body 1 to the set torque at a lower speed than the first stage.

[0020] The electric torque gun 2 has a two-stage speed-changing tightening mode. The first stage tightens at a high speed to 60% of the set torque to ensure production efficiency. The second stage tightens at a low speed to the set torque to reduce excessive compression of the elastomer material of the air intake pipe by the annular steel belt 11, reduce creep and stress relaxation, and improve clamping force stability.

[0021] According to the appendix Figure 2 As shown, the worm gear locking mechanism 12 includes a housing and a worm gear and a worm that mesh with each other inside the housing. The end of the worm is fixedly connected to the transmission interface 121.

[0022] According to the appendix Figure 2 As shown, the outer side of the annular steel belt 11 has multiple through drive holes 111, and the worm gear is meshed with the drive holes 111.

[0023] The worm gear locking mechanism 12 engages with the drive hole 111 of the annular steel belt 11 through the worm gear, and in conjunction with the power transmission between the worm and the transmission interface 121, it can achieve precise adjustment of the diameter of the annular steel belt 11 and ensure the sealing effect. According to the appendix Figure 2 As shown, the two ends of the annular steel strip 11 are connected by a worm gear locking mechanism 12 to form an annular structure with an adjustable diameter.

[0024] According to the appendix Figure 2As shown, the inner wall of the annular steel strip 11 is provided with an elastic sealing layer, which is used to fit against the outer wall of the intake pipe.

[0025] According to the appendix Figures 1-2 As shown, the output end of the electric torque gun 2 and the transmission interface 121 at the end of the worm gear are adapted polygonal structures to realize power transmission.

[0026] The free end of the annular steel belt 11 is provided with scale markings for indicating the degree of tightening.

[0027] The elastic sealing layer on the inner wall of the annular steel strip 11 enhances the fit and sealing with the outer wall of the intake pipe, and the scale markings on the free end make it easy to visually observe the tightness and improve assembly reliability.

[0028] The annular steel strip 11 of the clamp body 1 is fitted onto the connection part of the air intake pipe, and the output end of the electric torque gun 2 is connected to the transmission interface 121 of the worm gear locking mechanism 12.

[0029] After starting the electric torque gun 2, the first stage drives the worm gear to rotate at a set high speed. The worm gear drives the worm wheel inside the housing to rotate, and the worm wheel meshes with the drive hole 111 of the annular steel belt 11, tightening the annular steel belt 11 until 60% of the set torque is reached. Then, the electric torque gun 2 automatically switches to the second stage at a low speed, continuing to drive the worm gear and worm wheel to further tighten the annular steel belt 11 to the set torque. At this time, the elastic sealing layer on the inner wall of the annular steel belt 11 is tightly fitted to the outer wall of the intake pipe, achieving reliable fixation and sealing. The scale markings on the free end of the annular steel belt 11 can help judge the degree of tightening, ensuring that the assembly meets the requirements.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air intake line based worm and gear clamp, characterized by, It includes a clamp body (1) and a matching electric torque gun (2); the clamp body (1) includes an annular steel belt (11) and a worm gear locking mechanism (12) located at one end of the annular steel belt (11). The annular steel belt (11) is used to be sleeved on the connection part of the air intake pipe, and the worm gear locking mechanism (12) is provided with a transmission interface (121) that matches the electric torque gun (2). The electric torque gun (2) is configured to have a two-stage speed-controlled tightening mode. The first stage tightens the clamp body (1) to 60% of the set torque at a set high speed, and the second stage tightens the clamp body (1) to the set torque at a speed lower than the first stage.

2. An air intake line based worm gear clamp as claimed in claim 1, wherein, The worm gear locking mechanism (12) includes a housing and a worm gear and a worm that mesh with each other inside the housing. The end of the worm is fixedly connected to the transmission interface (121).

3. An air intake line based worm gear clamp as claimed in claim 2, wherein, The outer side of the annular steel strip (11) is provided with multiple through drive holes (111), and the worm gear is engaged with the drive holes (111).

4. An air intake line based worm gear clamp as claimed in claim 1, wherein, The two ends of the annular steel strip (11) are connected by a worm gear locking mechanism (12) to form an annular structure with an adjustable diameter.

5. An air intake line based worm gear clamp as claimed in claim 1, wherein, The inner wall of the annular steel strip (11) is provided with an elastic sealing layer, which is used to fit against the outer wall of the air intake pipe.

6. An air intake line based worm gear clamp as claimed in claim 2, wherein, The output end of the electric torque gun (2) and the transmission interface (121) at the end of the worm gear are adapted polygonal structures to realize power transmission.

7. An air intake line based worm gear clamp as claimed in claim 1, wherein, The free end of the annular steel strip (11) is provided with scale markings for indicating the degree of tightening.

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