Heim > Bloggen > Brancheninformationen > Application of constant force spring in self weight balance mechanism of sampling device

Application of constant force spring in self weight balance mechanism of sampling device

Quelle:Qianye-Präzision Zeit:2022-9-14

At present, various sample probes and reagent probes are used in medical laboratory equipment to suck samples, add samples, suck and test u, add reagents, measure and other operations. Most of the devices used in these action combinations are intelligent sampling devices, and the system used can automatically process data. Due to the full function and complex mechanism of the sampling device, the self weight of the system device is large, This brings higher and higher performance and power requirements to the driving motors of various sampling devices.

The self weight balance mechanism is set between the sampling device and the main structure and is composed of a lifting device and a constant force spring. The lifting device is composed of gears, racks and linear guide rails. The gears are driven by the motor and fixed on the main structure with the motor. The rack and the gear mesh to move up and down. The rack is fixed on the linear guide rail and the sampling device is fixed on the rack, The lifting device can also be composed of gear combination roller chain or synchronous belt, ball screw or flexible rope.

The upper end of the constant force spring is fixed on the main structure, and the lower end of the constant force spring is wound on a roll shaft on the sampling device. The roll shaft can rotate with the rise and fall of the sampling device. According to the height of the rise and fall of the sampling device, the excess part of the constant force spring can always be wound on the roll shaft. No matter how long the constant force spring is stretched, its own force wound on the roll shaft is constant, and the tension of the constant force spring is greater than or equal to the rack The sum of the gravity of the linear guide rail and the sampling device.

  Feder mit konstanter Kraft is made of steel strip. When it is straightened by external force, the spring will naturally roll back and produce elastic force. The advantages of constant force spring over traditional wire spring are as follows:

  1.High elastic output can be achieved in a very small device space.

 2.Maintain a certain elasticity in all strokes. The preload stroke is short, that is, the required elasticity can be achieved through a short stroke. The original long-term is smaller than the line spring, and the stroke is unlimited.

  When designing or specifying a constant force spring, many basic engineering parameters need to be considered. Material, fatigue life, tensile load, torque and friction, speed and acceleration, installation, safety considerations and application environment are all key factors.

Shenzhen Qianye Precision Metal Co., Ltd. is a global spring manufacturer with more than 20 years of spring manufacturing experience. As a professional spring supplier, we can provide all kinds of spring springs, as well as the application design and solutions of all kinds of springs. We sincerely suggest that customers obtain consulting services from our R&D engineers at the initial stage of product introduction and development. Assist in product design, development and proofing according to your needs, so that your products can find the best solution to meet your application needs.

Stichworte: ,

Neuesten Nachrichten

 How long can the spring last?
How long can the spring last?

Zeit: 2022-9-14

How long can stainless steel springs last? This is a common problem. You might think that as long as it's not stretched beyond the point of recovery, the spring will always return to its original shape. A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external force, and...

 Design cordless curtain springs
Design cordless curtain springs

Zeit: 2022-9-14

There are many types of curtains on the market today, such as Venetian blinds, Roman blinds and honeycomb blinds. When the curtains are lowered, the windows can be shaded to reduce light entering the house and improve privacy. Generally speaking, curtains are provided with control ropes, which can drive the bottom rail of the curtain to rise or fall. In...

 What are constant force springs and how are they used?
What are constant force springs and how are they used?

Time:2022-12-7

Constant force springs are specialized springs that are used to provide a constant force over a range of motion. This makes them ideal for use in a variety of applications, such as automotive or robotic systems.under we will take a closer look at what constant force springs are and how they can be used. What are constant force springs? A...

 Qianye innovative power spring plays an important role in Hose Reel
Qianye innovative power spring plays an important role in Hose Reel

Zeit: 2022-9-14

Hose Reel is also called pipe winder, Winder, reel, drum and air drum. Among many working equipment, the pipe winder is a very labor-saving and convenient long-distance energy transmission device. Its basic structure consists of hose, power spring, rotating shaft and other safety mechanisms.         The power spring of the hose reel can stretch and shrink the pipeline, intensively manage various energy pipelines,...

 Herkömmliche Triebfedern und vorgespannte Federn
Herkömmliche Triebfedern und vorgespannte Federn

Zeit:2022-9-3

Traditional power springs and preloaded power springs are fabricated from spring steel bars to provide torque. Spring steel is a low alloy, medium carbon steel or high carbon steel with a very high yield strength. Objects made of spring steel can return to their original shape despite significant bending or twisting. Power springs use flat (unstressed) steel windings, while pre-stressed...

 Design der Feder mit konstanter Kraft im Spulendämpfer
Design der Feder mit konstanter Kraft im Spulendämpfer

Zeit: 2022-9-14

 When powered by a damped constant force spring mounted on the spool, there are several key principles that influence the design of linear motion applications. These principles support robust and consistent performance of products in a variety of applications, including automotive and aircraft interiors, industrial machine components, and many other user interface applications. The example components shown above will be...

Product