Conical spring stiffness adjusting method and structure

A technology of conical spring and adjustment method, applied in the field of rail transit, can solve the problems of partial cracking of rubber, affect the performance, affect the stiffness of the conical spring, etc., and achieve the effects of increasing nonlinearity, prolonging service life, and increasing vertical stiffness.

Inactive Publication Date: 2019-09-27
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the development of vehicle technology, its fatigue load is becoming more and more severe, and the requirements for fatigue performance are becoming more and more stringent. The structure of the current coni

Method used

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  • Conical spring stiffness adjusting method and structure
  • Conical spring stiffness adjusting method and structure
  • Conical spring stiffness adjusting method and structure

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The conical spring is a rotating body, such as figure 1 As shown, the conical spring includes an outer jacket 1, a rubber body, a partition 4 and a mandrel 7, wherein the outer jacket 1, the partition 4 and the mandrel 7 are all made of metal, and the rubber body connects the outer jacket 1, the partition 4 and the mandrel 7 vulcanized into a whole. The rubber body is provided with partitions 4 distributed vertically, and the partitions 4 are embedded in the rubber body to divide the rubber body into an outer rubber body 3 and an inner rubber body 5 . Have vertical installation hole 2 on the overcoat 1, pass installation hole 2 with bolt, conical spring can be installed on the vehicle. A flange 6 is provided outside the lower end of the mandrel 7 to limit the movement of the lower end of the inner rubber body 5 when the conical spring bears a large load, thereby increasing the vertical stiffness.

[0029] Such as figure 1 and Figure 4 As shown, in order to further ...

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Abstract

The invention provides a conical spring stiffness adjusting method. A conical spring comprises an outer sleeve, a rubber body and a mandrel. The rubber body is vulcanized between the outer sleeve and the mandrel. A flange is arranged outside the lower end of the mandrel. A partition plate is arranged in the rubber body, when the lower end of the inner rubber body between the mandrel and the partition plate moves downwards, the inner rubber body bears dual restraints of the flange and the partition plate, and therefore the vertical stiffness of the conical spring is improved. The vertically distributed partition plate is arranged in the rubber body, so that when the lower end of the inner rubber body between the mandrel and the partition plate moves downwards, an outward convex arc section and an outward convex linear section are gradually attached to the upper surface of the flange and are limited in a space defined by the outer side of the mandrel, the upper surface of the flange and the inner side of the partition plate, so that the vertical stiffness of the conical spring can be greatly improved. The vertically distributed three-section type partition plate is arranged in the rubber body, so that the nonlinearity of the vertical stiffness of the conical spring is improved, and the transverse stiffness of the conical spring is improved.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to the improvement of conical springs on vehicles. Background technique [0002] Conical springs, also known as axle box springs, mainly refer to springs that combine metal and rubber on vehicles with a damping effect. The conical spring is installed between the rail vehicle axle box and the frame to play the role of support, shock absorption and noise reduction. It is a commonly used rubber-metal composite vibration and noise reduction component. It is installed in the primary suspension and secondary suspension of vehicles. On the car body, the main function is to bear the load of the car body and frame. The tapered metal parts and the rubber are vulcanized into a whole under a certain temperature and pressure through the adhesive. Its function is to use the vulcanized rubber to reduce vibration and noise, and the metal parts to support and install the interface. [0003] With...

Claims

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Application Information

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IPC IPC(8): F16F1/387F16F1/393
CPCF16F1/387F16F1/3935F16F2228/06F16F2234/04
Inventor 谭方孙海燕冯万盛林胜刘文松颜瑶李刚兰加标杨哲李东阁於珂睿曾慧
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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