CN202144013U

CN202144013U - Double-nut synchronous installing and dismounting device

Info

Publication number: CN202144013U
Application number: CN 201120175770
Authority: CN
Inventors: 于向军; 胡季; 孙中朝; 王德武
Original assignee: Kunming University
Current assignee: Kunming University of Science and Technology; Kunming University
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2012-02-15
Anticipated expiration: 2021-05-30

Abstract

The utility model discloses a double-nut synchronous installing and dismounting device which comprises two magnetic sleeves and a speed changing device, wherein the speed changing device comprises an input shaft, a driving gear, output shafts, driven gears, an input shaft, a bracket, an outer cover, an end cover and a nylon shaft sleeve; the speed changing device is wrapped between the outer cover and the end cover; the driving gear is sheathed and fixed on the input shaft which is sheathed in the bracket in a penetrating manner through the nylon shaft sleeve; the driven gears are sheathed and fixed on the output shafts; two output shafts are symmetrically arranged on two sides of the input shaft and are sheathed in the bracket in a penetrating manner; the driving gear is meshed with two driven gears on two sides; the two sleeves are positioned outside the end cover, and are respectively sheathed at the outer ends of the two output shafts; and by matching with a handheld 12V electric motor, the double-nut synchronous replacing device is time-saving and has high working efficiency when being used for replacing wheels, consistent pretightening force on a diagonal nut can be realized conveniently, the fatigue life of a bolt can be prolonged, and the reliability of wheel installing can be improved.

Description

The synchronous installation and removal device of double nut

Technical field

The utility model relates to a kind of car wheel nut installation and removal device, the synchronous installation and removal device of particularly a kind of double nut.

Background technology

Car is in long use, and owing to tire wear and unexpected reason, tyre explosion or tire pressure lose to the greatest extent; Need in time to change fast spare tyre; Using existing driver's tool all is the single nut operation of turn, not only time-consuming, efficient is low, and is difficult to realize that diagonal angle nut pretightning force is consistent.

The utility model content

The purpose of the utility model provides the synchronous installation and removal device of a kind of double nut; Cooperate the hand electric motor to use more wheel change of the synchronous installation and removal device of this double nut; Save time, high efficiency; Be convenient to realize that diagonal angle nut pretightning force is consistent, improve the fatigue life of bolt and the reliability that wheel is installed.

The utility model is made up of two sleeve and speed change gears with magnetic, and speed change gear is made up of power shaft, driving gear, output shaft, driven gear, power shaft, support, outer cover, end cap and nylon sleeve, and outer cover coats the outside that is arranged on support; End cap is located at the outer cover front portion; Speed change gear is coated between outer cover and the end cap, and driving gear is sheathed to be fixed on the power shaft, and power shaft is set in the support with nylon sleeve; Driven gear is sheathed to be fixed on the output shaft; Two output shaft symmetries are positioned at the both sides of power shaft, and two output shafts are set in the support, and two driven gears of driving gear and both sides are meshing with each other; Two sleeves are positioned at the end cap outside, and two sleeves are set in the outer end of two output shafts respectively.

The course of work and the principle of the utility model are following:

1, unloading process: two jacket casings are located on two nuts at wheel diagonal angle; Electro-motor is set on the power shaft, and the rotation direction that electro-motor is pressed nut drives power shaft, and power shaft drives the driving gear rotation; Driving gear drives the driven gear rotation; Output shaft drives sleeve and turns to nut is screwed off, and repeats aforementioned work the diagonal angle nut of remainder is screwed off, and accomplishes the wheel work of unloading;

2, installation process: two nuts are put in the sleeve; Let nut aim at two bolts at wheel diagonal angle respectively, electro-motor drives power shaft by the rotation direction of contrary nut, and power shaft drives the driving gear rotation; Driving gear drives the driven gear rotation; Output shaft drive sleeve turns to nut is screwed, and repeats aforementioned work the diagonal angle nut of remainder is screwed, and accomplishes wheel-mounted work.

The beneficial effect of the utility model is: cooperate hand-held 12V electro-motor to use more wheel change of the synchronous installation and removal device of this double nut; Save time, high efficiency; Be convenient to realize that diagonal angle nut pretightning force is consistent, improve the fatigue life of bolt and the reliability that wheel is installed.

Description of drawings

Fig. 1 is the partial sectional perspective view of the utility model embodiment.

The specific embodiment

See also shown in Figure 1; The utility model is made up of with speed change gear 2 two sleeves 1 with magnetic, and speed change gear 2 is made up of power shaft 21, driving gear 22, output shaft 23, driven gear 24, support 26, outer cover 27, end cap 28 and nylon sleeve 29, and outer cover 27 coats the outside that is arranged on support 26; End cap 28 is located at outer cover 27 front portions; Speed change gear 2 is coated between outer cover 27 and the end cap 28, driving gear 22 sheathed being fixed on the power shaft 21, and power shaft 21 is set in the support 26 with nylon sleeve 29; Driven gear 24 sheathed being fixed on the output shaft 23; Two output shaft 23 symmetries are positioned at the both sides of power shaft 21, and two output shafts 23 are set in the support 26 with nylon sleeve 29, and driving gear 22 is meshing with each other with two driven gears 24 of both sides; Two sleeves 1 are positioned at end cap 28 outsides, and two sleeves 1 are set in the outer end of two output shafts 23 respectively.

Be arranged with first circlip 4 on the output shaft 23 of the junction of described sleeve 1 and output shaft 23.

Described inboard output shaft 23 rear ends of outer cover 27 walls that are positioned at are arranged with second circlip 5.

Described power shaft 21 rear ends are arranged with the 3rd circlip 6.

The course of work and the principle of present embodiment are following:

1, unloading process: two sleeves 1 are set on two nuts at wheel diagonal angle; Electro-motor is set on power shaft 21 rear ends, and the rotation direction that electro-motor is pressed nut drives power shaft 21, and power shaft 21 drives driving gear 22 rotations; Driving gear 22 drives driven gear 24 rotations; Output shaft 23 drives sleeves 1 and turns to nut is screwed off, and repeats aforementioned work the diagonal angle nut of remainder is screwed off, and accomplishes the wheel work of unloading;

2, installation process: two nuts are put in the sleeve 1; Let nut aim at two bolts at wheel diagonal angle respectively, electro-motor drives power shaft 21 by the rotation direction of contrary nut, and power shaft 21 drives driving gear 22 rotations; Driving gear 22 drives driven gear 24 rotations; Output shaft 23 drive sleeves 1 turn to nut are screwed, and repeat aforementioned work the diagonal angle nut of remainder is screwed, and accomplish wheel-mounted work.

Claims

1. synchronous installation and removal device of double nut; It is characterized in that: form by two sleeve (1) and speed change gears (2) with magnetic; Speed change gear (2) is made up of power shaft (21), driving gear (22), output shaft (23), driven gear (24), support (26), outer cover (27), end cap (28) and nylon sleeve (29); Outer cover (27) coats the outside that is arranged on support (26), and end cap (28) is located at outer cover (27) front portion, and speed change gear (2) is coated between outer cover (27) and the end cap (28); Driving gear (22) is sheathed to be fixed on the power shaft (21); Power shaft (21) is set in the support (26) with nylon sleeve (29), and driven gear (24) is sheathed to be fixed on the output shaft (23), and two output shafts (23) symmetry is positioned at the both sides of power shaft (21); Two output shafts (23) are set in the support (26) with nylon sleeve (29), and driving gear (22) is meshing with each other with two driven gears (24) of both sides; Two sleeves (1) are positioned at end cap (28) outside, and two sleeves (1) are set in the outer end of two output shafts (23) respectively.