Lightweight wear-resistant connecting rod

Abstract

The utility model provides a light wear-resistant connecting rod which comprises a body, an oblong hole is formed in the body, the oblong hole comprises a pair of long side walls, wear-resistant inserts are fixedly arranged on the long side walls, at least one connecting rod is arranged at each of the two ends of the body, the connecting rods extend horizontally and are perpendicular to the wear-resistant inserts, and the wear-resistant inserts are arranged on the connecting rods. The body and the connecting rod are made of light materials. The wear-resistant insert is arranged in the long side wall and is in contact with the transmission bearing, so that the connecting rod can be made of a light material, the service life of the connecting rod can be ensured, the weight of the connecting rod can be reduced, the additional load of the motor is reduced, and the working efficiency of the motor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air compressors, and in particular to a lightweight, wear-resistant connecting rod. Background Art

[0002] Although there are many types of general reciprocating piston air compressors, their structures are similar, that is, the motor outputs power through the eccentric wheel, and the eccentric wheel drives the connecting rod to drive the piston to reciprocate in the cylinder to compress the gas to produce compressed air.

[0003] The connecting rod currently in use includes a body and a connecting rod provided on the body and integrally formed with the body, the connecting rod is connected to the piston, an oblong hole is provided on the body, the motor is connected to the eccentric wheel, a transmission bearing is provided on the eccentric wheel, the oblong hole is sleeved on the transmission bearing, the rotation of the motor drives the eccentric wheel to rotate eccentrically, and the transmission bearing drives the connecting rod to move laterally, and this structure is the same as the existing cam transmission mechanism. There is a large friction between the transmission bearing and the oblong hole. In order to ensure the service life of the connecting rod, the connecting rod is generally made of steel, which makes the connecting rod heavier, increases the additional load of the motor, and reduces the working efficiency of the motor. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies of the prior art, the present application provides a lightweight and wear-resistant connecting rod, which can not only ensure the service life of the connecting rod, but also reduce the weight of the connecting rod, reduce the additional load of the motor, and improve the working efficiency of the motor.

[0005] The present application is achieved through the following technical solution: a lightweight wear-resistant connecting rod, comprising a main body, wherein an oblong hole is provided in the main body, wherein the oblong hole comprises a pair of long side walls, and wear-resistant inserts are fixedly provided on the long side walls. At least one connecting rod is respectively provided at both ends of the main body, wherein the connecting rod extends horizontally, and the connecting rod and the wear-resistant insert are vertically arranged, and the main body and the connecting rod are made of lightweight materials.

[0006] Furthermore, the main body and the connecting rod are made of aluminum.

[0007] Furthermore, the wear-resistant insert is made of steel.

[0008] Furthermore, a mounting groove is provided on the long side wall, the mounting groove is recessed from the long side wall away from the center of the oblong hole, and the wear-resistant insert is fixed in the mounting groove.

[0009] Furthermore, the wear-resistant insert is fixedly connected to the body by screws.

[0010] Furthermore, a card seat is provided in the installation groove, a card slot is provided in the wear-resistant insert, and the card seat is adapted to be arranged in the card slot.

[0011] Further, the connecting rod includes a first connecting rod and a second connecting rod which are separately arranged. The first connecting rod is integrally formed with the body, and the second connecting rod is detachably connected to the first connecting rod.

[0012] Further, a fixing groove is provided at one end of the first connecting rod away from the body, and one end of the second connecting rod is fixed in the fixing groove.

[0013] Further, the first connecting rod and the second connecting rod are detachably connected by screws.

[0014] Further, the number of connecting rods provided at both ends of the body is equal, and they are symmetrically arranged according to the center line of the body.

[0015] Compared with the prior art, the present application has the following beneficial effects: a wear-resistant insert is provided in the long side wall, and the wear-resistant insert is in contact with the transmission bearing, so that the connecting rod can be made of a lightweight material, which can not only ensure the service life of the connecting rod, but also reduce the weight of the connecting rod, thereby reducing the additional load of the motor and improving the working efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is a three-dimensional schematic diagram of the assembly of the connecting rod, cylinder liner, piston and leather cup in an embodiment of the present application;

[0018] Figure 2 is Figure 1 an exploded view of;

[0019] Figure 3 is a partial exploded view of the assembly of the connecting rod, piston and leather cup;

[0020] Figure 4 is a schematic structural diagram of the wear-resistant insert. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. They are only examples of devices and methods consistent with some aspects of the present application.

[0022] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit the application. The singular forms "a", "the", and "said" used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0023] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various signals, these signals should not be limited to these terms. These terms are only used to distinguish signals of the same type from each other. For example, without departing from the scope of this application, the first signal may also be referred to as the second signal, and similarly, the second signal may also be referred to as the first signal. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to a determination".

[0024] The following will describe in detail a lightweight and wear-resistant connecting rod of this application with reference to the accompanying drawings. Without conflict, the features in the following embodiments may be combined with each other.

[0025] Please refer to Figure 1 and Figure 4 As shown, a lightweight and wear-resistant connecting rod includes a body 1. A long circular hole 2 is provided in the body 1. The long circular hole 2 includes a pair of long side walls 3. Wear-resistant inserts 4 are fixedly provided on the long side walls 3. At least one connecting rod is provided at both ends of the body 1. The connecting rod extends horizontally and is perpendicular to the wear-resistant insert 4. The body 1 and the connecting rod are made of lightweight materials.

[0026] Among them, the lightweight material is preferably aluminum, and the wear-resistant insert 4 is preferably made of steel.

[0027] The specific assembly method between the wear-resistant insert 4 and the body 1 is as follows: An installation groove 5 is provided on the long side wall 3. The installation groove 5 is recessed and formed in a direction away from the center of the long circular hole 2 on the long side wall 3. A clamping seat 6 is provided in the installation groove 5. The height of the clamping seat 6 is equal to that of the installation groove 5. A clamping groove 7 is provided in the wear-resistant insert 4. The clamping groove 7 is adapted to the clamping seat 6. The wear-resistant insert 4 is snapped into the installation groove 5, and the clamping seat 6 is clamped in the clamping groove 7. Then, the wear-resistant insert 4 and the body 1 are fixedly connected with screws.

[0028] The wear-resistant insert 4 abuts against the transmission bearing 8. The transmission bearing 8 is sleeved on the eccentric wheel, and the eccentric wheel is in transmission connection with the motor. The motor drives the transmission bearing 8 to perform eccentric rotation through the eccentric wheel, thereby driving the connecting rod to perform linear reciprocating movement. Through the setting of the wear-resistant insert 4, not only the service life of the connecting rod can be ensured, but also the weight of the connecting rod can be reduced, the additional load of the motor can be reduced, and the working efficiency of the motor can be enhanced. The connection between the transmission bearing 8 and the motor is the same as the prior art and will not be described in detail herein.

[0029] In this embodiment, the connecting rod includes a first connecting rod 9 and a second connecting rod 10 which are separately arranged. The first connecting rod 9 is integrally formed with the body 1. A fixing groove 11 is provided at one end of the first connecting rod 9 away from the body 1. A positioning post 12 is provided in the fixing groove 11. A positioning through hole 13 is provided at one end of the second connecting rod 10. One end of the second connecting rod 10 is arranged in the fixing groove 11, and the positioning post 12 is inserted into the positioning through hole 13, and then the second connecting rod 10 and the first connecting rod 9 are fixed by screws. During use, a piston 14 is connected to one end of the second connecting rod 10 away from the first connecting rod 9. A leather cup 15 is provided on the piston 14. The second connecting rod 10 drives the piston 14 to be inserted into the cylinder liner 16 from one end of the cylinder liner 16 away from the body 1. The outer periphery of the leather cup 15 is folded against the insertion direction of the second connecting rod 10 and is in sealed contact with the inner wall of the cylinder liner 16. Then, the second connecting rod 10 and the first connecting rod 9 are assembled, and the end of the cylinder liner 16 away from the body 1 is hermetically assembled. This assembly method can improve the sealing effect between the leather cup 15 and the cylinder liner 16 and extend the service life of the leather cup. As for the movement mode between the piston 14 and the cylinder liner 16 and the flow mode of the compressed gas, they are the same as the prior art and will not be described in detail herein.

[0030] The number of connecting rods provided at both ends of the body 1 is equal and symmetrically arranged according to the center line of the body 1, or the number of connecting rods provided at both ends of the body 1 is not equal. The number of connecting rods provided at one end of the body 1 is m, and the number of connecting rods provided at the other end of the body 1 is n. m is an even number, n is an odd number, and m - n = 1 or n - m = 1. In this embodiment, the setting and preventing method of the connecting rod is the former.

[0031] The above are only the preferred embodiments of the present application, and do not impose any formal restrictions on the present application. Although the present application has been disclosed above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present application by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A lightweight and wear-resistant connecting rod, characterized in that, It includes a body, in which an oblong hole is provided. The oblong hole includes a pair of long side walls, and wear-resistant inserts are fixed on the long side walls. At least one connecting rod is provided at each end of the body, the connecting rod extends horizontally, and the connecting rod is perpendicular to the wear-resistant insert. The body and the connecting rod are made of aluminum material.

2. The lightweight wear-resistant connecting rod according to claim 1, wherein The wear-resistant insert is made of steel material.

3. The lightweight wear-resistant connecting rod according to claim 1, wherein An installation groove is provided on the long side wall, and the installation groove is recessed and formed from the long side wall away from the center direction of the oblong hole. The wear-resistant insert is fixed in the installation groove.

4. The lightweight wear-resistant connecting rod according to claim 3, characterized in that, The wear-resistant insert is fixedly connected to the body by screws.

5. The lightweight wear-resistant connecting rod according to claim 3, characterized in that, A clamping seat is provided in the installation groove, and a clamping groove is provided in the wear-resistant insert. The clamping seat is adaptively clamped in the clamping groove.

6. The lightweight wear-resistant connecting rod according to claim 1, wherein The connecting rod includes a first connecting rod and a second connecting rod which are separately arranged. The first connecting rod is integrally formed with the body, and the second connecting rod is detachably connected to the first connecting rod.

7. The lightweight and wear-resistant connecting rod according to claim 6, wherein, A fixing groove is provided at one end of the first connecting rod away from the body, and one end of the second connecting rod is fixed in the fixing groove.

8. The lightweight wear-resistant connecting rod according to claim 6, wherein The first connecting rod and the second connecting rod are detachably connected by screws.

9. The lightweight wear-resistant connecting rod according to claim 1, characterized in that, The number of connecting rods provided at both ends of the body is equal and is symmetrically arranged according to the center line of the body.

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