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Component of novel shaft hole connection mode and manufacturing method of component

A connection method and a new type of technology, applied in the direction of bearing components, shafts, shafts and bearings, etc., can solve the problems of lack of flexibility, high processing costs, abrasive tools and precision limitations, and achieve improved connection strength, simple processing, and guaranteed strength Effect

Active Publication Date: 2017-03-22
济宁勤昌工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another example is the Chinese patent (application number 201410596566.5), which is called the structure of the center sleeve of the motorcycle clutch. This method adopts a die-casting process to make an internal spline sleeve integrated with the center sleeve body. The internal spline sleeve is made of alloy steel. High cost, limited by grinding tools and precision, lack of flexibility

Method used

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  • Component of novel shaft hole connection mode and manufacturing method of component
  • Component of novel shaft hole connection mode and manufacturing method of component
  • Component of novel shaft hole connection mode and manufacturing method of component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1, reference Figure 2-6 , The components of a new type of shaft hole connection described in this embodiment include a flat shaft 1 welded on the input shaft 3 of the hydraulic gear pump and a flat shaft sleeve 2 welded on the output shaft 4 of the power take-off. The butt joint position of the flat shaft sleeve 2 and the output shaft 4 is provided with a welding groove, and the flat shaft 1 is fixed in the flat shaft sleeve 2 by hot fitting or pressing.

[0043] The end surface of the input shaft 3 is provided with a groove 5 for the flat shaft 1 to be embedded, which improves the shear resistance.

[0044] The depth of the groove 5 is 15 mm.

[0045] The flat shaft 1 is heated to 80°C for hot charging, and the flat shaft sleeve 2 is heated to 130°C for hot charging.

[0046] The included angle of the welding groove is 70 degrees to facilitate the welding of the two.

[0047] The flat shaft 1 is a flat shaft with a cross-section of two side planes 6.

[0048] The cutti...

Embodiment 2

[0050] Example 2, the method for preparing a member of a new type of shaft-hole connection described in this specific embodiment, includes the following steps:

[0051] 1) Cutting: select round bar material, and cut the material with a length of 55±2mm from the round bar material, with a diameter of 60mm;

[0052] 2) Rough turning: Use ordinary lathe to turn the outer circle, end face and punch positioning holes. The rough turning is carried out in two times. When the outer circle is roughed, the rough turning allowance is 0.5mm, the cutting speed is 140m / min, and the feed is 0.20mm / r;

[0053] 3) Drilling: A radial drilling machine is used to drill a middle hole at the center position with a diameter of 5mm;

[0054] 4) Quenching and tempering treatment: first quenching treatment, then high temperature tempering treatment in the temperature range of 620 ℃ to enhance the strength, plasticity and toughness of the drive shaft, the hardness is HRC55;

[0055] 5) Finish turning: Use ordina...

Embodiment 3

[0064] Example 3, the method for preparing a member of a new type of shaft-hole connection described in this specific embodiment, includes the following steps:

[0065] 1) Cutting: select round bar material, and cut material with a length of 60±2mm from the round bar material, with a diameter of 56mm;

[0066] 2) Rough turning: Use a common lathe to turn the outer circle, end face and punch positioning holes. The rough turning is carried out in two times. When the outer circle is roughed, the rough turning allowance is 0.6mm, the cutting speed is 160m / min, and the feed rate is 0.18mm / r;

[0067] 3) Drilling: A radial drilling machine is used to drill a middle hole at the center position with a diameter of 5mm;

[0068] 4) Quenching and tempering treatment: first quenching treatment, then high temperature tempering treatment in the temperature range of 600 ℃ to enhance the strength, plasticity and toughness of the drive shaft, the hardness is HRC56;

[0069] 5) Finish turning: Use ordin...

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Abstract

The invention relates to a component of a novel shaft hole connection mode. The component comprises a flat shaft welded to an input shaft of a hydraulic gear pump, and a flat shaft sleeve welded to an output shaft of a power take-off device. A welding groove is formed in the butt-joint position of the flat shaft sleeve and the output shaft. The flat shaft is fixed in the flat shaft sleeve in a hot charging or pressing-in mode. The invention further provides a manufacturing method of the component of the novel shaft hole connection mode. The component of the novel shaft hole connection mode and the manufacturing method of the component have the beneficial effects that 1, the flat shaft sleeve and the flat shaft are matched as a whole, the number of stress faces is only two, the match precision can be guaranteed easily, transferred loads can be divided to the flat shaft and the flat shaft sleeve, and the connection strength can be guaranteed only by guaranteeing the strength of the flat shaft and the flat shaft sleeve; 2, the reliability of shaft hole connection can be completely improved, and the reliability is greatly improved; and 3, the thickness of a nickel plating layer of the matching face of the flat shaft is controlled strictly, the form and position accuracy of assembly is guaranteed, alloy welding rods are welded through groove brazing, and the strength of welded positions is guaranteed.

Description

Technical field [0001] The invention relates to a component of a novel connection method of a shaft hole and a preparation method thereof, and in particular to a component of a novel connection method of a shaft hole suitable for a tractor-mounted crane power transmission system and a preparation method thereof. Background technique [0002] Spline is a common matching application of shaft hole connection in mechanical applications. It is used for power transmission and is widely used in industrial and civil fields such as transportation, machinery manufacturing, and engineering machinery. [0003] Tractor-mounted cranes are important engineering equipment in civil engineering construction. Due to the large tractor horsepower and the large and frequent load changes during work, and there are many applications in the power transmission system, shaft hole connections often appear after a period of work The splines and spline holes wear out and break teeth, causing connection failure,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00F16C3/02F16C33/04
CPCB23P15/00F16C3/02F16C33/04
Inventor 李志伟王成常爱伟葛建伟
Owner 济宁勤昌工贸有限公司