A new valve cover

Abstract

The utility model relates to valve machining technical field, especially a new type valve cover. Including base, annular pipe, reinforcing surface, fixed ring and annular groove, the annular groove sets up in the base body center position, two fixed ring respectively set up on the base body, and two fixed ring respectively are close to base body both ends setting, the annular pipe sets up in the base upward operation surface. Including raw material detection, heating and material preparation, making embryo and forging, intermediate detection, trimming and shaping, cooling and cutting, welding and processing, final detection, cleaning and polishing, equipment maintenance, the utility model has the beneficial effect that: through the close connection of annular pipe and annular groove, the sealing performance of valve cover is promoted, effectively prevents medium leakage, through strict raw material detection and each link quality detection, can effectively improve the quality of valve cover, enhances its sealing property and pressure resistance, reduces the occurrence of product failure and leakage problem.

Description

Technical Field

[0001] This utility model relates to the field of valve processing technology, and in particular to a novel valve cover. Background Technology

[0002] In existing technologies, the valve cover, as a crucial component of a valve, directly impacts its performance and service life through its structural design. Traditional valve covers suffer from several structural shortcomings, such as poor sealing performance and insufficient structural strength. Poor sealing performance can easily lead to media leakage, resulting in resource waste and potential environmental pollution; while insufficient structural strength may cause deformation and damage during long-term use, affecting the normal operation of the valve, increasing maintenance costs, and creating safety hazards.

[0003] As a crucial component of valves, the quality of the valve cover directly impacts the valve's performance and service life. Traditional valve cover manufacturing processes have limitations in product quality, production efficiency, and cost control, making it difficult to meet the ever-growing market demands. For example, valve covers produced using traditional processes often exhibit poor sealing and pressure resistance, making them prone to leakage. Furthermore, the production process causes significant equipment wear and tear, leading to increased production costs.

[0004] Therefore, a new type of valve cover needs to be designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a novel valve cover. The technical solution adopted by this utility model is as follows:

[0006] A novel valve cover includes a base, an annular tube, a reinforcing surface, a fixing ring, and an annular groove. The annular groove is located at the center of the base body. Two fixing rings are respectively located on the base body and are located near both ends of the base body. The annular tube is located on the upward working surface of the base, and the inner side of the bottom end of the annular tube is connected to the outer side of the annular groove.

[0007] As an improvement, the base body is designed in a rhombus shape, and all four corners of the base are designed in an arc shape.

[0008] As an improvement, the reinforcing surface is designed in an arc shape, and the reinforcing surface is connected at the junction of the base and the annular tube.

[0009] As an improvement, the inner diameter of the annular tube is the same as the diameter of the annular groove.

[0010] A novel valve cover manufacturing process is characterized by including raw material inspection, heating and preparation, billet making and forging, intermediate inspection, edge trimming and shaping, cooling and cutting, welding and machining, final inspection, cleaning and polishing, and equipment maintenance.

[0011] Raw material testing: Before heating and material preparation, the cut rolled steel and plates are subjected to strict quality testing. The chemical composition of the cut rolled steel is detected by a spectrometer, and the plates are tested for flaws by an ultrasonic flaw detector.

[0012] Heating and material preparation: The cut rolled steel is heated to 900-1250℃ in an electronic high-frequency furnace to obtain billets. At the same time, the plates are cut to make rectangular billet one and cylindrical billet two.

[0013] Billet preparation and forging: The billet is upset to form a billet at an initial forging temperature of 900-1250℃, followed by hot primary forging (900-1150℃) and hot finish forging (800-1000℃). During the forging process, an infrared thermometer is used to monitor the billet temperature in real time.

[0014] Intermediate inspection: After hot precision forging, the forging is subjected to preliminary dimensional and hardness inspection. The key dimensions of the forging are measured using a coordinate measuring machine, and the hardness is tested using a Rockwell hardness tester.

[0015] Trimming and shaping: Trimming of hot precision forged blanks on a punch press, shaping and punching on a 315-630T punch press;

[0016] Cooling and cutting: Naturally cool to ≤200℃, heat the furnace to 1050℃±10℃, keep it at ≥2h and then water cool, then perform positive defocus laser cutting, and after cutting, perform roughness testing on the cut surface;

[0017] Welding and machining: Laser welding of valve cover and sleeve; precision machining of symmetrical side holes on both sides on machine tool; after welding, X-ray flaw detection is used to inspect the welded parts;

[0018] Final inspection: A comprehensive performance test is conducted on the completed valve cover, including sealing test, pressure test, etc. The sealing test uses a helium mass spectrometer leak detector, and the pressure test uses a dedicated pressure testing equipment.

[0019] Cleaning and polishing: Degreasing, pickling to remove oil and dirt, sanding, grinding to remove burrs, shot blasting to polish to obtain the finished product;

[0020] Equipment maintenance: After each batch of production is completed, a comprehensive maintenance and upkeep is carried out on equipment such as electronic high-frequency furnaces, punch presses, laser cutting machines, and machine tools. Oil stains, iron filings, and other impurities are cleaned from the surface and inside of the equipment. The wear of key components is checked and vulnerable parts are replaced in a timely manner.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model discloses a novel valve cover. Through the tight connection between the annular tube and the annular groove, the sealing performance of the valve cover is improved, effectively preventing media leakage. The diamond-shaped and arc-shaped corner design of the base, as well as the setting of the reinforcing surface, enhance the structural strength of the valve cover, enabling it to withstand greater pressure, reducing the risk of deformation and damage, and extending the service life of the valve.

[0023] Through rigorous raw material testing and quality inspection at each stage, the quality of the valve cover can be effectively improved, its sealing and pressure resistance can be enhanced, and the occurrence of product failures and leakage problems can be reduced.

[0024] Reasonable heating and forging processes, as well as precise temperature control, have improved the quality and production efficiency of forgings and reduced the scrap rate.

[0025] Advanced welding and processing techniques ensure the structural precision and stability of the valve cover.

[0026] Obviously, based on the above description of this utility model, and in accordance with the common technical knowledge and practices in the field, various other modifications, substitutions or alterations can be made without departing from the basic technical concept of this utility model.

[0027] The following detailed embodiments further illustrate the above-described content of this utility model. However, this should not be construed as limiting the scope of the above-described subject matter of this utility model to the following examples. All technologies implemented based on the above-described content of this utility model fall within the scope of this utility model. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0029] Figure 2 This is a top view of the structure of this utility model.

[0030] Reference table for attached figures:

[0031] 1. Base; 2. Annular tube; 3. Reinforcing surface; 4. Fixing ring; 5. Annular groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] To address the technical problems in the background art, a novel valve cover is provided as follows:

[0034] Combination Figures 1-2 As shown, this utility model provides a novel valve cover, including a base, an annular tube, a reinforcing surface, a fixing ring, and an annular groove. The base body has a rhomboid design, and all four corners of the base are arc-shaped. The annular groove is located at the center of the base body. Two fixing rings are respectively located on the base body, and the two fixing rings are respectively located near the two ends of the base body. The annular tube is located on the upward working surface of the base, and the inner side of the bottom end of the annular tube is connected to the outer side of the annular groove. The inner diameter of the annular tube is the same as the diameter of the annular groove. The reinforcing surface has an arc-shaped design and is connected at the junction of the base and the annular tube.

[0035] A novel valve cover manufacturing process is characterized by including raw material inspection, heating and preparation, billet making and forging, intermediate inspection, edge trimming and shaping, cooling and cutting, welding and machining, final inspection, cleaning and polishing, and equipment maintenance.

[0036] Raw material testing: Before heating and material preparation, the cut rolled steel and plates are subjected to strict quality testing. The chemical composition of the cut rolled steel is detected by a spectrometer, and the plates are tested for flaws by an ultrasonic flaw detector.

[0037] Heating and material preparation: The cut rolled steel is heated to 900-1250℃ in an electronic high-frequency furnace to obtain billets. At the same time, the plates are cut to make rectangular billet one and cylindrical billet two.

[0038] Billet preparation and forging: The billet is upset to form a billet at an initial forging temperature of 900-1250℃, followed by hot primary forging (900-1150℃) and hot finish forging (800-1000℃). During the forging process, an infrared thermometer is used to monitor the billet temperature in real time.

[0039] Intermediate inspection: After hot precision forging, the forging is subjected to preliminary dimensional and hardness inspection. The key dimensions of the forging are measured using a coordinate measuring machine, and the hardness is tested using a Rockwell hardness tester.

[0040] Trimming and shaping: Trimming of hot precision forged blanks on a punch press, shaping and punching on a 315-630T punch press;

[0041] Cooling and cutting: Naturally cool to ≤200℃, heat the furnace to 1050℃±10℃, keep it at ≥2h and then water cool, then perform positive defocus laser cutting, and after cutting, perform roughness testing on the cut surface;

[0042] Welding and machining: Laser welding of valve cover and sleeve; precision machining of symmetrical side holes on both sides on machine tool; after welding, X-ray flaw detection is used to inspect the welded parts;

[0043] Final inspection: A comprehensive performance test is conducted on the completed valve cover, including sealing test, pressure test, etc. The sealing test uses a helium mass spectrometer leak detector, and the pressure test uses a dedicated pressure testing equipment.

[0044] Cleaning and polishing: Degreasing, pickling to remove oil and dirt, sanding, grinding to remove burrs, shot blasting to polish to obtain the finished product;

[0045] Equipment maintenance: After each batch of production is completed, a comprehensive maintenance and upkeep is carried out on equipment such as electronic high-frequency furnaces, punch presses, laser cutting machines, and machine tools. Oil stains, iron filings, and other impurities are cleaned from the surface and inside of the equipment. The wear of key components is checked and vulnerable parts are replaced in a timely manner.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0047] 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 process, method, article, or apparatus.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

[0049] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel valve cover, characterized in that, It includes a base (1), an annular tube (2), a reinforcing surface (3), a fixing ring (4) and an annular groove (5). The annular groove (5) is located at the center of the base (1) body. The two fixing rings (4) are respectively located on the base (1) body and are located close to both ends of the base (1) body. The annular tube (2) is located on the upward working surface of the base (1) and the inner side of the bottom end of the annular tube (2) is connected to the outer side of the annular groove (5).

2. The novel valve cover according to claim 1, characterized in that, The base (1) has a rhomboid shape and all four corners are arc-shaped.

3. The novel valve cover according to claim 1, characterized in that, The reinforcing surface (3) is arc-shaped and is connected at the junction of the base (1) and the annular tube (2).

4. A novel valve cover according to claim 1, characterized in that, The inner diameter of the annular tube (2) is the same as the diameter of the annular groove (5).

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