Constant torque spring is a constant force spring with special force moving between two spools. The spring is stored on the storage spool and wound reversely on the output spool. When released, torque is obtained from the output spool when the spring returns to its natural curvature on the storage spool.
The spring does not need to be connected to the storage spool. The spring can be installed in a cavity without storing the spool at all. However, friction will then be introduced and torque requirements will change. The torque generated by the constant torque spring will increase slightly after several revolutions. Constant torque, even negative torque, is also possible. Negative gradients of up to 50% can be achieved in some applications.
As for the design of constant torque spring, when considering the use of constant torque spring, it is strongly recommended that you talk with Qianye engineers and study various design parameters. Some initial design calculations can be carried out according to the following eight steps.
1. Select materials
Most of the springs we produce are made of type 301 stainless steel. This material is readily available and predictable. Thousands of industry engineers can assist in selecting standard sizes to speed up the process. We also use high carbon steel, Inconel and Elgiloy in various designs as needed.
2. Life expectancy
This is one of the most important considerations because the life of constant torque springs is very predictable. Practical is important because it is estimated that high life cycle requirements may lead to larger and more expensive designs. Of course, underestimating the life cycle can lead to premature failure.
3. Establish torque
When determining the correct torque for the spring, your design needs to consider many factors. Torque is only a measurable torsional force, which often leads to rotation.
4. Determine space
When looking at the charts in the design guide, it is clear that multiple thickness and width combinations can be used to produce the same torque. The inner diameter (ID) of the spring depends on the thickness, the life cycle and the required force. The outer diameter (OD) depends on the above, and the total length is taken as an additional consideration. The standard tolerance for ID and OD is ± 10%.
5. Calculate the total length
The total length of the constant torque spring shall take into account the actual number of turns of the spring on the output valve core plus at least enough material to maintain 1 / 2 turn on the spring when fully rotated. The formula for determining the length is as follows: l = π n (do + NT) + 10
6. Select end details
This end detail connects the spring to the output spool. We have many standard end details available. We have a complete tool and mold department that can create many designs that customers need.
7. Calculate the minimum spool spacing
The distance between the centers of the spool (dimension “s”) must be greater than the spring radius when completely wound on the storage spool, plus the spring radius when completely wound on the output spool.
8. Complete the design
Once the above criteria are reviewed and the constant torque projectile can be located or inferred from the design diagram.
Shenzhen Qianye Precision Metal Co., Ltd. ໄດ້ຖືກສ້າງຕັ້ງຂຶ້ນໃນປີ 2006 ເພື່ອສະຫນອງນ້ໍາສະແຕນເລດທີ່ມີຄຸນນະພາບສູງສໍາລັບຫຼາຍຂົງເຂດ. ໂດຍຜ່ານຄວາມພະຍາຍາມຢ່າງຕໍ່ເນື່ອງ, 19 ໃບຢັ້ງຢືນສິດທິບັດແລະ 4 ລິຂະສິດຊອບແວອຸປະກອນພາກຮຽນ spring ໄດ້ຮັບການອະນຸຍາດຈາກຫ້ອງການຊັບສິນທາງປັນຍາຂອງລັດ, ແລະອິດທິພົນອຸດສາຫະກໍາ enviable ໄດ້ຖືກສ້າງຂຶ້ນ. ບໍລິສັດໄດ້ອອກແບບແລະການຜະລິດລະດັບຄວາມກ້ວາງຂອງ springs ພະລັງງານ, springs ຜົນບັງຄັບໃຊ້ຄົງທີ່, springs torsion ຄົງທີ່, springs ຜົນບັງຄັບໃຊ້ທີ່ປ່ຽນແປງແລະ motor brush spring. Qianye ເຮັດວຽກໃນການຮ່ວມມືຢ່າງໃກ້ຊິດກັບລູກຄ້າຂອງຕົນໃນການພັດທະນາວິທີແກ້ໄຂ bespoke ເພື່ອຕອບສະຫນອງຄວາມຕ້ອງການສ່ວນບຸກຄົນຂອງເຂົາເຈົ້າ. ເພື່ອສະໜອງການບໍລິການທີ່ດີກວ່າ, ໄດ້ລົງທຶນຢ່າງບໍ່ຢຸດຢັ້ງໃນເຕັກໂນໂລຊີການຜະລິດ ແລະ ຕ່ອງໂສ້ການສະໜອງ. ບໍລິສັດຕົວມັນເອງເປັນຜູ້ຜະລິດວັດຖຸດິບສະແຕນເລດ. ເນື່ອງຈາກການສະຫນັບສະຫນູນຂອງວັດຖຸດິບ, ມັນບໍ່ຂຶ້ນກັບຂໍ້ຈໍາກັດດ້ານວັດສະດຸໃນເວລາທີ່ເຮັດຜະລິດຕະພັນພາກຮຽນ spring; ຄວາມຕ້ອງການວັດສະດຸພິເສດສາມາດພັດທະນາແລະຜະລິດ; ຍິ່ງໄປກວ່ານັ້ນ, ເວລາການຈັດສົ່ງແມ່ນສັ້ນລົງຢ່າງຫຼວງຫຼາຍ. ຄຸນນະພາບເປັນສິ່ງສໍາຄັນທີ່ສຸດແລະ Qianye ໄດ້ຮັບການຢັ້ງຢືນ ISO9001, ISO14001 ແລະວິສາຫະກິດເຕັກໂນໂລຊີສູງແຫ່ງຊາດໂດຍເນັ້ນຫນັກຂະຫນາດໃຫຍ່ກ່ຽວກັບການຝຶກອົບຮົມພະນັກງານຂອງຕົນ. ຈິດໃຈຂອງມັນແມ່ນ “ປະຕິບັດຕໍ່ຄົນດ້ວຍຄວາມຈິງໃຈແລະສ້າງສິ່ງຂອງດ້ວຍຄວາມຈິງໃຈ” ເພື່ອໃຫ້ແນ່ໃຈວ່າມັນພະຍາຍາມເພື່ອຄວາມດີເລີດ.
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