Precise part of automobile gearbox

Abstract

The utility model discloses a precision part of an automobile gearbox, and relates to the technical field of precision parts. The valve element comprises an inner rod, a short rod arranged at one end of the inner rod, a middle rod arranged at one end of the short rod and an outer rod arranged at one end of the middle rod. An annular groove is formed in the outer wall of the inner rod, and an inner cavity is formed in one side face of the inner rod. According to the utility model, the valve core which is integrally formed is used, so that the valve can be used on different gearboxes, and is small and practical; the device can be quickly mounted when being small, and is small in size and convenient to dismount; the device is practical, is suitable for different vehicle types, and even can meet the requirements of vehicle types with different high and low configurations; the valve element is simple in structure, small in size and formed at a time, production cost is reduced, production time is saved, quick production of the valve element is improved, working efficiency of valve element production is further improved, production cost is reduced, and quality of the valve element is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision parts, in particular to precision parts for automobile gearboxes. Background Art

[0002] With the rapid development of economy and the progress of science and technology, facing the competitive pressure from all sides, it is more and more important to improve products and reduce costs. At present, the company's automobile orders are increasing, and the orders for its matching precision parts (valve cores) are also increasing. However, during the processing of existing precision parts (valve cores), the design of precision parts (valve cores) is relatively complex, resulting in a long processing time for precision parts (valve cores), thereby reducing the work efficiency of valve core production. Therefore, an automobile gearbox precision part is proposed to solve the above problems. Summary of the invention

[0003] The purpose of the utility model is to provide a precision part for an automobile gearbox in order to solve the above-mentioned problem.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Precision parts for automotive transmissions, including valve cores;

[0006] The valve core comprises an inner rod, a short rod arranged at one end of the inner rod, a middle rod arranged at one end of the short rod, and an outer rod arranged at one end of the middle rod;

[0007] An annular groove is arranged on the outer wall of the inner rod, an inner cavity is opened on one side surface of the inner rod, and the inner cavity extends into the middle rod.

[0008] Preferably, the inner rod has a length of 11.2 mm and a diameter of 21 mm, the short rod has a length of 4 mm and a diameter of 15.15 mm, the middle rod has a length of 15.2 mm and a diameter of 13.8 mm, and the outer rod has a length of 21.6 mm and a diameter of 9 mm.

[0009] Preferably, the error in length of the inner rod, short rod, middle rod and outer rod is plus or minus 0.1 mm, the error in diameter of the inner rod is plus or minus 0.05 mm, the error in diameter of the middle rod is plus or minus 0.1 mm, and the error in diameter of the outer rod and short rod is plus or minus 0.03 mm.

[0010] Preferably, the outer opening diameter of the inner cavity is 21 mm, with an error of plus or minus 0.05 mm, and the inner end diameter is 8, with an error of plus or minus 0.2 mm and minus 0 mm.

[0011] Preferably, an internal threaded hole is provided in the middle of one end surface of the outer rod.

[0012] Preferably, the valve core is an integrally formed product, and the valve core is made of pure copper.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model can be used on different gearboxes through the use of an integrally formed valve core, and is small and practical. It is small in size and can be quickly installed, and is small in volume and convenient to disassemble. It is practical in that it is suitable for use on different models of vehicles, and can even meet the needs of different high- and low-end models. It is small in volume and is formed in one time, which reduces production costs and saves production time, thereby improving the rapid production of the valve core, further improving the work efficiency of the valve core production, reducing production costs, and improving the quality of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a front view provided according to an embodiment of the utility model is shown;

[0016] Figure 2 The cross-sectional structure schematic diagram of the front view provided by the embodiment of the utility model is shown.

[0017] Legend:

[0018] 1. Valve core; 101. Inner rod; 102. Short rod; 103. Middle rod; 104. Outer rod; 2. Annular groove; 3. Inner cavity; 4. Internal threaded hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 , the utility model provides a technical solution:

[0021] The automobile gearbox precision part is characterized in that it includes a valve core 1; by installing the valve core 1 in the gearbox, the operation of the gearbox is stable, and the valve core 1 has the function of ensuring the balance and stability of the gearbox, and also has wear-resistant properties;

[0022] The valve core 1 includes an inner rod 101, a short rod 102 arranged at one end of the inner rod 101, a middle rod 103 arranged at one end of the short rod 102, and an outer rod 104 arranged at one end of the middle rod 103, so as to cooperate with the gearbox to make the gearbox run smoothly;

[0023] An annular groove 2 is provided on the outer wall of the inner rod 101, and when installed in the gearbox, an annular sealing gasket is provided in the annular groove 2 to achieve sealing of the valve core 1 and prevent liquid from flowing out of the gearbox, thereby facilitating the smooth operation of the gearbox; an inner cavity 3 is opened on one side surface of the inner rod 101, and the inner cavity 3 extends into the middle rod 103.

[0024] In the utility model, the length of the inner rod 101 is 11.2 mm and the diameter is 21 mm, the length of the short rod 102 is 4 mm and the diameter is 15.15 mm, the length of the middle rod 103 is 15.2 mm and the diameter is 13.8 mm, and the length of the outer rod 104 is 21.6 mm and the diameter is 9 mm; the manufacturing accuracy of the valve core 1 is improved, thereby improving the quality of the valve core.

[0025] In the utility model, the length errors of the inner rod 101, the short rod 102, the middle rod 103 and the outer rod 104 are plus or minus 0.1 mm, the diameter error of the inner rod 101 is plus or minus 0.05 mm, the diameter error of the middle rod 103 is plus or minus 0.1 mm, and the diameter errors of the outer rod 104 and the short rod 102 are both plus or minus 0.03 mm; the manufacturing accuracy of the valve core 1 is improved, thereby improving the quality of the valve core 1.

[0026] In the utility model, the outer diameter of the inner cavity 3 is 21mm, with an error of plus or minus 0.05mm, and the inner end diameter is 8, with an error of plus or minus 0.2mm and minus 0mm, which improves the manufacturing accuracy of the valve core 1 and thus improves the quality of the valve core 1.

[0027] In the present invention, an internal threaded hole 4 is provided in the middle of one end surface of the outer rod 104 to facilitate the installation of the valve core 1 .

[0028] In the utility model, the valve core 1 is an integrally molded product, which can be used on different gearboxes and is small and practical. It is small in size and can be quickly installed, has a small volume, and is easy to disassemble. It is practical in that it is suitable for use in different models of vehicles and can even meet the needs of different high- and low-end models. It is small in size and is molded in one time, which reduces production costs and saves production time, thereby improving the rapid production of the valve core, further improving the work efficiency of the valve core production, and reducing production costs. The valve core 1 is made of pure copper, which improves the quality of the valve core 1.

[0029] Working principle: When the utility model is used, when processing the valve core 1, the valve core 1 is processed at one time using a lathe, so that the valve core 1 is an integrated product, which is convenient for the valve core 1 to be installed on different gearboxes, and is small and practical; small, it can be quickly installed, small in size, and easy to disassemble; practical, that is, it is suitable for use in different models, and can even meet the needs of different high and low configuration models;

[0030] When installing the valve core 1, first fix the valve core 1, then install it on the gearbox, and finally perform a sealing test on the valve core 1.

[0031] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Automobile gearbox precision parts, characterized in that: comprising a valve core (1); The valve core (1) comprises an inner rod (101), a short rod (102) arranged at one end of the inner rod (101), a middle rod (103) arranged at one end of the short rod (102), and an outer rod (104) arranged at one end of the middle rod (103); An annular groove (2) is provided on the outer wall of the inner rod (101), an inner cavity (3) is provided on one side surface of the inner rod (101), and the inner cavity (3) extends into the middle rod (103).

2. The automobile gearbox precision part according to claim 1, characterized in that: The inner rod (101) has a length of 11.2 mm and a diameter of 21 mm, the short rod (102) has a length of 4 mm and a diameter of 15.15 mm, the middle rod (103) has a length of 15.2 mm and a diameter of 13.8 mm, and the outer rod (104) has a length of 21.6 mm and a diameter of 9 mm.

3. The automobile gearbox precision part according to claim 2, characterized in that: The length errors of the inner rod (101), the short rod (102), the middle rod (103) and the outer rod (104) are plus or minus 0.1 mm, the diameter error of the inner rod (101) is plus or minus 0.05 mm, the diameter error of the middle rod (103) is plus or minus 0.1 mm, and the diameter errors of the outer rod (104) and the short rod (102) are both plus or minus 0.03 mm.

4. The automobile gearbox precision part according to claim 3, characterized in that: The outer diameter of the inner cavity (3) is 21 mm, with an error of plus or minus 0.05 mm, and the inner diameter is 8 mm, with an error of plus or minus 0.2 mm and minus 0 mm.

5. The automobile gearbox precision part according to claim 4, characterized in that: An internal threaded hole (4) is provided in the middle of one end surface of the outer rod (104).

6. The automobile gearbox precision part according to claim 1, characterized in that: The valve core (1) is an integrally formed product, and the valve core (1) is made of pure copper.

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