Control ruler for angles between planes of V-shaped guides

Sherov, Karibek; Alikulov, D. E.

doi:10.1007/s11018-012-9971-5

Cited by 10 publications

(10 citation statements)

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“…The results of the study show that with increasing the machining modes, the size of the build-up decreases or it disappears altogether. The appearance of the hindered layer was detected in works [15,18,19] carried out to study the process of the chips formation. It is known [20,21] that this phenomenon usually appears when treating plastic materials.…”

Section: Experimental Research and Discussion Of The Resultsmentioning

confidence: 99%

Studying the process of tooling cylindrical gears

Sherov¹,

Mardonov²,

Zharkevich³

et al. 2020

J Appl Eng Science

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The studies of the state of gears production show that there is a problem of ensuring the accuracy and quality of teeth tooling in fi nishing operations. To solve this problem, there has been developed a method of fi nishing the teeth of gears and a design of a special reeling tool for its implementation. A feature of the proposed method is its implementation on universal lathes. This article presents the results of an experimental study of the proposed method of tooling and studying the chip formation process. The research methodology is based on the scientifi c principles of engineering technology, the theory of chip formation, the theory of metal cutting and gear tooling. The metallographic method of research has also been used and the experiment has been planned. The results of experimental studies confi rm the possibility of applying the proposed method for fi nishing side surfaces of the cylindrical gear teeth, at this there has been achieved roughness R a = 1.25 ÷ 0.32 μm. The results of studying chip formation show that the tooling of the "shaver-squeegee" ensures high-quality crushing of chips, it somewhat weakens the structure of the chips and improves the working conditions of the tool and improves the quality of the fi nishing tooling of gear teeth.

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Section: Experimental Research and Discussion Of The Resultsmentioning

confidence: 99%

Studying the process of tooling cylindrical gears

Sherov¹,

Mardonov²,

Zharkevich³

et al. 2020

J Appl Eng Science

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show abstract

“…However, not all problems of ensuring accuracy and reducing the complexity of processing and assembling such surfaces are solved. The FCS includes the surfaces of mobile and fixed joints, when the coupling is performed simultaneously on several surfaces, and the accuracy of their coupling is determined by the contact norms [3,4].…”

Section: The Methods Of Selecting the Optimal Layouts Of The Size Limit Deviations During Assemblymentioning

confidence: 99%

The Method of Selecting the Optimal Layouts of the Size Limit Deviations During Assembly

Sherov¹,

Alikulov²,

Sikhimbayev³

et al. 2021

News of NAN RK. SGTS

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The development of mechanical engineering in recent years has led to a special focus on the processing of functionally connected surfaces. In world practice, more attention is paid to the creation of methods, techniques, technological processes, tools, measures, etc., which would reduce the complexity of processing and assembling functionally connected surfaces (FCS) of details and connections. Currently, the connection between the dimensions and positions of surfaces is not standardized for all details. These details include body parts and frames that have V-shaped surfaces and associated planes. Apparently, this is due to the large variety of functionally connected surfaces and the complexity of controlling the technological support of dimensions. When coupling details of metal-cutting machines FCS, it is necessary to ensure simultaneous contact of two combined surfaces of the guides. This article provides a method for selecting the optimal layouts of the size limit deviations when assembling details with FCS. The influence of the location of the size limit deviations on the complexity of the fitting operation when assembling two combined surfaces of details is considered. Possible layouts of the size limit deviations are shown, as well as a diagram of the relative position of the two combined surfaces before the fit operation, depending on the values of the size limit deviations. Some recommendations are given for choosing the optimal layouts of the limit deviations of the dimensions of the adjacent planes: - the position of the adjacent planes depends on the size values and their deviations; - the position of the adjacent planes is significantly affected by the position of the size deviations of the connected planes; - depending on the location of the limit deviations of the size of the joints, the amount of removed allowance varies considerably and leads to a significant change in the labor intensity of the scraping process.

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“…In [18,19,20,21], dispersion fields of the diameters of the sleeve and holes for biaxial joints were shown. Depending on the task, the desired option for the mutual arrangement of tolerance fields of size R and size 0.5D can be selected.…”

Section: Series Of Geology and Technical Sciences 2 2021mentioning

confidence: 99%

Research of the Internal Leakage Process of a Liquid in the Design of a Gear Pump With a Two-Axial Connection

Sherov¹,

Alikulov²,

Smirnov³

et al. 2021

News of NAN RK. SGTS

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This article presents the results of a study of the process of internal fluid leakage in the design of a gear pump with a biaxial connection. It is known that the volumetric efficiency mainly depends on the leakage of the working fluid through the gaps formed by the tooth heads and the pump casing, as well as between the end surfaces of the gears and the side walls of the casing. In addition, additional leaks occur along the contact line of the teeth. To reduce radial leaks, the gap between the gears and the pump casing is minimized, and to reduce end-leakage, the side walls are automatically pressed against the end surfaces of the gears by liquid under operating pressure. The design of the pump shows that the main internal fluid leaks occur in the gap between the gears and the housing. Naturally, these leaks require excessive energy consumption and, thereby, reduce the efficiency of the pump. The natural way to combat this circumstance is to reduce the marked gaps to a minimum. This is possible using an additional element - a biaxial sleeve. The dependence of the spring force on the fluid flow rate and the guaranteed gap between the ring gear and the pump casing has been analytically established. They are characterized by a drop in force with an increase in clearance and a rise in flow rate. This is due to an increase in the dynamic force in the gaps, which must be compensated by the spring.

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Control ruler for angles between planes of V-shaped guides

Cited by 10 publications

References 0 publications

Studying the process of tooling cylindrical gears

Studying the process of tooling cylindrical gears

The Method of Selecting the Optimal Layouts of the Size Limit Deviations During Assembly

Research of the Internal Leakage Process of a Liquid in the Design of a Gear Pump With a Two-Axial Connection

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