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Linear actuator

A technology of linear actuators and bearing support, applied in transmissions, transmission parts, belts/chains/gears, etc., can solve problems such as high overall cost, high production cost, high production process and technical requirements, and eliminate Effects of abnormal noise, reduced accuracy requirements, and stable operation

Active Publication Date: 2016-01-27
力纳克传动系统(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the unit cost of each part is higher, the overall cost is higher
[0004] Furthermore, prior art support devices for actuators are complex structures requiring extremely precise dimensions
In this way, it is difficult to provide stable quality in the case of mass production, resulting in high requirements for the production process and technology, and thus high production costs

Method used

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Embodiment 1

[0027] Such as Figure 1 to Figure 7 As shown, the present invention provides a bearing support device for an actuator, which includes: a bearing support frame 1, a bearing 2, a worm wheel 3 and a spindle 8, wherein: the bearing support frame 1 is configured to support and fix the bearing 2 The bearing 2 is configured to support the worm wheel 3 and is riveted to the worm wheel 3 and the spindle 8; and the worm wheel 3 and the spindle 8 are riveted.

[0028] figure 1 It is a schematic diagram of the overall assembly structure according to this embodiment; figure 2 It is a structural schematic diagram of the bearing support frame 1 according to this embodiment; image 3 It is a structural schematic diagram of the bearing 2 according to this embodiment; Figure 4 It is a schematic cross-sectional structure diagram of the bearing 2 according to this embodiment; Figure 5 It is a structural schematic diagram of the worm wheel 3 according to this embodiment; Image 6 It is a ...

Embodiment 2

[0032] Such as Figure 8 with Figure 9 As shown, on the basis of Embodiment 1, this embodiment includes a ball bearing 4 , a coupling 5 , a rear fixing device 6 , a spindle nut 7 , a motor housing 9 and an outer tube 10 .

[0033] The bearing support frame 1 is a plastic bearing support frame, which supports and fixes the bearing 2 so as to meet the requirements for the assembly size of the bearing 2 . The bearing 2 is firstly installed into the motor housing 9, then installed into the bearing support frame, and finally the motor housing 9 and the outer tube 10 are screwed together so as to fix the bearing support frame 1. In this way, by matching the shape of the bearing support frame 1 with the shape of the bearing 2, the requirement for dimensional accuracy is met. Bearing 2 is a plastic bearing that supports the worm wheel 3 and is riveted to the worm wheel 3, ball bearing 4, coupling 5, spindle nut 7 and spindle 8, then fits into the motor housing 9; next bearing 2 is ...

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PUM

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Abstract

A linear actuator with a support that includes a bearing support frame, a bearing, a worm wheel, and a spindle, the bearing support frame being configured to support and secure the bearing, the bearing being configured to support the worm wheel and riveted to the worm wheel and the spindle; and the worm wheel and the spindle are riveted. The present invention enables the actuator to run more stably and at least doubles the service life of the product; reduces the requirement of the precision of parts such as motor housing and back fixture, and ensures that the service life of the product meet requirements even when the dimension of a few parts is inaccurate; and therefore eliminates the abnormal noise generated by the spindle of the actuator.

Description

technical field [0001] The invention relates to a linear actuator with support means. Background technique [0002] Current actuators used to support loads employ two configurations. With the first configuration, the parts on the mandrel, including the worm gear, are assembled by riveting or screwing, so the worm gear needs to transmit torque and ensure that the engagement position with the worm shaft remains constant. Thus, in the case of high loads, the strength and precision requirements of the rear fixture and the motor housing are very high. Furthermore, since a large number of parts are involved, it is difficult to control product quality, thereby increasing production costs and resulting in unstable quality. [0003] For the second configuration, the parts of the spindle are separate from the worm gear. In this case, the spindle is responsible for transmitting linear motion and the worm gear is responsible for transmitting torque. This fully utilizes the character...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/021
CPCF16H57/021F16H2057/0213F16H25/24F16H2025/2084F16H2025/209
Inventor 柳忠政
Owner 力纳克传动系统(深圳)有限公司