Shaft sleeve mechanism capable of being locked at any angle and position in two directions

An arbitrary-angle, two-way lock technology, applied to mechanical equipment, one-way clutches, clutches, etc., can solve problems such as unbearable, large torque and vibration, and achieve reliable two-way high-torque locking, large locking torque, and small size Effect

Pending Publication Date: 2018-12-25
是云树
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The function of this mechanism is applied to the light load where there is basically no arm at the end, and it is similar to the damping structure, which cannot withstand large torque and vibration

Method used

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  • Shaft sleeve mechanism capable of being locked at any angle and position in two directions
  • Shaft sleeve mechanism capable of being locked at any angle and position in two directions
  • Shaft sleeve mechanism capable of being locked at any angle and position in two directions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] combined with figure 1 , attached figure 2 , attached image 3 And attached Figure 4 As shown, several needle rollers 3 are annularly distributed on the inner wall of the mechanism shell 1, and two adjacent needle rollers 3 form a needle roller group, and the two needle rollers 3 that form the needle roller group 3 are respectively placed in two symmetrically arranged In the wedge-shaped groove 7 , the big end 6 of the wedge-shaped groove is located at the outermost side of the two symmetrically arranged wedge-shaped grooves 7 .

[0054] The unlocking dial 4 can move axially along the mechanism housing 1 , and the unlocking dial 4 has unlocking needles distributed in a ring shape. When the shaft 2 and the mechanism housing 1 need to be fixed together, the unlocking needle on the unlocking dial 4 is not squeezed between the two adjacent needle roller groups, and the wavy shrapnel on the shrapnel disk 5 is placed on the rollers that form the rollers. Between the two...

Embodiment 2

[0058] combined with Figure 5 , attached figure 2 , attached image 3 And attached Figure 4 As shown, a spring 9 is added on the basis of the first embodiment, and the spring 9 is supported between the shaft 2 and the disc body of the unlocking dial 4 . When the disc body of the unlocking dial 4 is pressed and moved into the mechanism housing 1 for unlocking, the spring 9 is in a compressed state. When the pressure on the disc body of the unlocking dial 4 disappears, the spring 9 resumes deformation, and the spring 9 will push the unlocking dial 4 to move outward and reset, so that automatic locking is realized.

Embodiment 3

[0060] as attached Figure 6 As shown, the card roller expansion part 8 is a concave plastic part, and the unlock pin on the unlocking dial 4 is located directly above the opening of the groove of the card roller expansion part 8, when the unlock pin is inserted into the card roller expansion part 8 After entering the groove, the two sides of the card roller expansion member 8 will be squeezed by the unlocking needle and expand outward respectively, and the two sides of the card roller expansion member 8 and the steps at the root of the unlocking needle will simultaneously push the needle rollers 3 on both sides outward. Press, thereby driving the needle roller 3 to move in the wedge-shaped groove 7. The stability of the movement of the needle roller 3 is maintained, and the smoothness of unlocking is improved.

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PUM

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Abstract

The invention relates to the field of rolling mechanisms, in particular to a shaft sleeve mechanism capable of being locked at any angle and position in two directions. A rolling mechanism comprises amechanism housing, a shaft, roller pins, unlocking pin discs, elastic piece discs, wedge-shaped groove large head ends and wedge-shaped grooves; the wedge-shaped grooves are distributed in the innerwall of the mechanism housing, a wedge-shaped groove large head end is arranged on one side of each wedge-shaped groove, one end of each roller pin is arranged in the corresponding wedge-shaped grooveand disposed in the mechanism housing, the elastic piece discs and the unlocking pin discs are movably connected in two openings of the mechanism housing respectively, and every two roller pins constitute a roller pin group; elastic pieces are distributed on the elastic piece discs, each elastic piece is arranged between the two corresponding roller pins constituting a roller pin group, and unlocking pins for penetrating through the portion between every two adjacent roller pin groups are distributed on the unlocking pin discs. The locking torque is large, the size is small, the middle part can also be designed to be hollow, working media such as gas, liquid and electricity can be passed, signal cables can be connected, and the rolling mechanism can be conveniently integrated into a wholemachine for use.

Description

technical field [0001] The invention relates to the field of rolling mechanisms, in particular to a shaft sleeve mechanism capable of bidirectional locking at any angular position. Background technique [0002] A large part of the existing angle adjustment and locking mechanism adopts the bolt and nut locking rotating pair structure, usually after the bolt is loosened with a wrench, the arm is adjusted to the required angle position and then locked. If the locking surface is smooth, it is also easy to loosen when subjected to external force. In order to increase the locking torque, some products process the tooth grooves on the locking pair of the locking mechanism to engage with each other. Such a structure has a large locking force due to mechanical interference, but there is a minimum adjustment due to the tooth grooves (ie : 360° / number of cogging slots), which cannot meet the requirements of stepless adjustment. Obviously, the position change of the end of the support...

Claims

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Application Information

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IPC IPC(8): F16D41/064
CPCF16D41/064
Inventor 是云树
Owner 是云树
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