Fastener looseness-preventing device
A fastener and anti-loosening technology, applied in the direction of pump components, parts of pumping devices for elastic fluids, non-variable pumps, etc., can solve the problem of impeller falling off the installation shaft, which cannot ensure loosening or prevent movement safety, Mechanical accidents and other problems, to achieve the effect of beautiful appearance, simple structure and convenient production
Inactive Publication Date: 2015-02-11
WEIHAI CREDITFAN VENTILATOR
View PDF0 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In the existing fan industry, spring washers or conical washers are usually used to connect the motor shaft and impeller and tightened by bolts. This method of preventing loosening and movement is suitable for low-speed or infrequent starting. The fan can meet the requirements, but for the fan with high speed or frequent start, it cannot guarantee the safety of loosening or preventing movement. If the rotating parts cannot be securely and firmly prevented from loosening, it may cause the impeller to fall off the installation shaft, which is easy mechanical accident
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] The present invention is further described below in conjunction with accompanying drawing:
[0012] As shown in the drawings, a fastener anti-loosening device includes a motor shaft 1, an impeller 2 and a fastening bolt 3, and is characterized in that a positioning washer 4 and an anti-loosening washer 5 are provided, and the center of the positioning washer 4 is provided with There are through holes, and the side wall is provided with a positioning card slot 6. The anti-loosening gasket 5 is triangular in shape, and the center of the anti-loosening gasket 5 is provided with a perforation. One corner of the anti-loosening gasket 5 is vertically bent with the anti-loosening gasket 5 to form a baffle 7, where the other corner extends radially and is bent vertically against the baffle plate 7 to form a positioning plate 8, the fastening bolt 3 passes through the perforation of the anti-loosening washer 5 and the through hole of the positioning washer 4 and passes through th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of fans, in particular to a fastener looseness-preventing device. The fastener looseness-preventing device comprises a motor shaft, an impeller and a fastening bolt, and is characterized by being provided with a positioning washer and a looseness-preventing washer, wherein a through hole is formed in the center of the positioning washer; a positioning clamping groove is formed in the side wall of the positioning washer; the looseness-preventing washer is triangular; a punched hole is formed in the center of the looseness-preventing washing; one angle of the looseness-preventing washer is vertically bent, so that a baffle is formed; another angle of the looseness-preventing washer radially extends and is reversely and vertically bent relative to the baffle, so that a positioning plate is formed; the fastening bolt penetrates through the punched hole of the looseness-preventing washer and the through hole of the positioning washer; the impeller is fixed on the motor shaft through the looseness-preventing washer and the positioning washer; one side of the fastening bolt is in contact with the baffle of the looseness-preventing washer; the positioning plate of the looseness-preventing washer is clamped in the positioning clamping groove, so that the purpose that the looseness of the fastening bolt is prevented during the frequently starting of a motor, and mechanical accidents are avoided. The fastener looseness-preventing device has the advantages of simple structure, attractiveness in appearance, high convenience in manufacture, high safety, high reliability and the like.
Description
technical field [0001] The invention relates to the field of fan technology, in particular to a fastener loosening device for a fan motor shaft and an impeller. Background technique [0002] In the existing fan industry, spring washers or conical washers are usually used to connect the motor shaft and impeller and tightened by bolts. This method of preventing loosening and movement is suitable for low-speed or infrequent starting. The fan can meet the requirements, but for the fan with high speed or frequent start, it cannot guarantee the safety of loosening or preventing movement. If the rotating parts cannot be securely and firmly prevented from loosening, it may cause the impeller to fall off the installation shaft, which is easy cause mechanical accidents. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, and provide a fastener anti-loosening device with simple structure, beautiful a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/054
CPCF04D29/054
Inventor 乔君正石亚君王新
Owner WEIHAI CREDITFAN VENTILATOR