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Large-stroke telescopic mechanism

A technology of telescopic mechanism and large stroke, which is applied in the direction of manipulators, claw arms, manufacturing tools, etc., and can solve problems such as poor telescopic stability, overall shaking of the telescopic mechanism, and affecting the working efficiency of business modules.

Pending Publication Date: 2019-04-19
ZHEJIANG GUOZI ROBOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing telescopic mechanisms in China achieve the function of large-stroke telescopic function by stacking multi-layer linear slide rails, or using multi-layer screw nesting and other linear motion superposition methods. During the telescopic process, for single-layer linear motion In other words, if the moment arm between the load and the support point is too long, it will easily cause the overall shaking of the telescopic mechanism and affect the working efficiency of the connected business modules; However, this kind of scissor arm telescopic mechanism has many transmission arms, and every two transmission arms are hinged to each other, so there are many hinge positions on the whole, and these hinge positions are due to clearance problems. Very poor telescopic stability

Method used

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Experimental program
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Effect test

Embodiment 1

[0036] like Figure 1 to Figure 4 As shown, the present embodiment is a telescopic mechanism, including a fixed seat 50, and the fixed seat 50 is provided with a shaft hole. Installed in the shaft hole of the fixed seat 50, the two ends of the first transmission arm 201 are respectively connected in rotation with the first rotation shaft 101 and the second rotation shaft 102, and the first transmission arm 201 is realized to rotate around the first rotation shaft 101 under the action of a driver , the first rotating shaft 101 and the second rotating shaft 102 are connected by a transmission mechanism through a first transmission mechanism, and the first transmission mechanism includes a front transmission wheel 301a and a rear transmission wheel 301b for mutual transmission, wherein the front transmission wheel 301a is fixedly connected to the first rotation shaft 101 , the rear transmission wheel 301b is fixedly connected with the second rotating shaft 102 , and the second ro...

Embodiment 2

[0048] like Figures 4 to 8 As shown, the difference between this embodiment and Embodiment 1 is that this embodiment includes a plurality of transmission arms, and the telescopic mechanism sequentially includes a first rotating shaft 101, a second rotating shaft 102...the N+1th rotating shaft, and the N is greater than or equal to 2, the terminal arm 4 is fixedly connected to the N+1th rotating shaft, and transmission arms are connected between adjacent rotating shafts, which are respectively the first transmission arm 201, the second transmission arm 202...the Nth transmission arm, The adjacent rotating shafts are driven by transmission mechanisms, which are respectively the first transmission mechanism, the second transmission mechanism ... the Nth transmission mechanism, each transmission mechanism includes a front transmission wheel and a rear transmission wheel, and the telescopic mechanism satisfies:

[0049] The front transmission wheel in the Nth transmission mechanis...

Embodiment 3

[0062] like Figure 10 As shown, the difference between this embodiment and Embodiment 2 is that the number of transmission arms in this embodiment is two, and the connection method is basically the same as that of Embodiment 2. The difference is that the transmission ratio of the second transmission mechanism in this embodiment is 1:2, the terminal arm 4 is directly and fixedly connected to the third rotating shaft 103 .

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Abstract

The invention discloses a large-stroke telescopic mechanism, and belongs to the field of mechanical telescopic equipment. The large-stroke telescopic mechanism comprises a first rotating shaft, a second rotating shaft and a first transmission arm, the two ends of the first transmission arm are rotationally connected with the first rotating shaft and the second rotating shaft correspondingly, the first transmission arm is rotated around the first rotating shaft under the effect of a driver, the first rotating shaft and the second rotating shaft are in transmission connection through a first transmission mechanism, the first transmission mechanism includes a front transmission wheel and a rear transmission wheel which are mutually driven, the front transmission wheel is fixedly connected with the first rotating shaft, the rear transmission wheel is fixedly connected with the second rotating shaft, and the second rotating shaft is used for being connected with a terminal arm. The large-stroke telescopic mechanism has the advantages of making the expansion and contraction more stable and the telescopic stroke longer.

Description

【Technical field】 [0001] The invention relates to a large-stroke telescopic mechanism, which belongs to the field of mechanical telescopic equipment. 【Background technique】 [0002] Most of the existing telescopic mechanisms in China achieve the function of large-stroke telescopic function by stacking multi-layer linear slide rails, or using multi-layer screw nesting and other linear motion superposition methods. During the telescopic process, for single-layer linear motion In other words, if the moment arm between the load and the support point is too long, it will easily cause the overall shaking of the telescopic mechanism and affect the working efficiency of the connected business modules; However, this kind of scissor arm telescopic mechanism has many transmission arms, and every two transmission arms are hinged to each other, so there are many hinge positions on the whole, and these hinge positions are due to clearance problems. Stretch stability is poor. 【Content o...

Claims

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Application Information

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IPC IPC(8): B25J18/02
CPCB25J18/025
Inventor 赖华敏吴海宇徐泽杰唐露高劲军
Owner ZHEJIANG GUOZI ROBOT TECH
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