CN202144013U - Double-nut synchronous installing and dismounting device - Google Patents

Abstract

The utility model discloses a double-nut synchronous installation and disassembly device, which is composed of two magnetic sleeves and a speed change device. The speed change device is composed of an input shaft, a driving gear, an output shaft, a driven gear, an input shaft, and a bracket. , outer cover, end cover and nylon bushing, the transmission device is covered between the outer cover and the end cover, the driving gear is sleeved and fixed on the input shaft, the input shaft is sleeved in the bracket with a nylon bushing, and the driven gear is sleeved Fixed on the output shaft, the two output shafts are symmetrically located on both sides of the input shaft, the two output shafts are sleeved in the bracket, the driving gear meshes with the two driven gears on both sides, and the two sleeves are located outside the end cover , the two sleeves are set respectively on the outer ends of the two output shafts; the double nut synchronous replacement device is used to replace the wheels with the hand-held 12V electric motor, which saves time and high work efficiency, and is convenient to achieve the same pretightening force of the diagonal nuts and improve The fatigue life of the bolts and the reliability of the wheel installation.

Description

Double nut synchronous installation and removal device

technical field

The utility model relates to a car wheel nut installation and disassembly device, in particular to a double nut synchronous installation and disassembly device.

Background technique

During the long-term use of the car, due to tire wear and accidents, the tire blows out or the tire pressure is lost. It is necessary to replace the spare tire in time and quickly. Using the existing on-board tools is to rotate a single nut, which is not only time-consuming , low efficiency, and it is difficult to achieve the same pretightening force of the diagonal nuts.

Utility model content

The purpose of this utility model is to provide a double-nut synchronous installation and disassembly device, which can be used to replace wheels with a hand-held electric motor, which saves time and high work efficiency, and is convenient to achieve consistent pre-tightening force of diagonal nuts. Improve the fatigue life of the bolts and the reliability of the wheel installation.

The utility model is composed of two magnetic sleeves and a speed change device. The speed change device is composed of an input shaft, a driving gear, an output shaft, a driven gear, an input shaft, a bracket, an outer cover, an end cover and a nylon bushing. The outer cover Covering is arranged on the outside of the bracket, the end cover is set on the front of the cover, the speed change device is covered between the cover and the end cover, the driving gear is sleeved and fixed on the input shaft, and the input shaft is inserted in the bracket with a nylon sleeve , the driven gear is sleeved and fixed on the output shaft, the two output shafts are symmetrically located on both sides of the input shaft, the two output shafts are sleeved in the bracket, the driving gear meshes with the two driven gears on both sides, and the two The sleeve is located outside the end cover, and the two sleeves are sleeved on the outer ends of the two output shafts respectively.

Working process and principle of the present utility model are as follows:

1. Disassembly process: Set two sleeves on the two nuts at the opposite corners of the wheel, set the electric motor on the input shaft, the electric motor drives the input shaft according to the rotation direction of the nut, and the input shaft drives the driving gear to rotate. The driving gear drives the driven gear to rotate, and the output shaft drives the sleeve to rotate until the nut is unscrewed. Repeat the above work to unscrew the remaining diagonal nuts to complete the work of unloading the wheel;

2. Installation process: put the two nuts in the sleeve, align the nuts with the two bolts at the opposite corners of the wheel, the electric motor drives the input shaft in the opposite direction of the nut, the input shaft drives the driving gear to rotate, and the driving gear drives The driven gear rotates, and the output shaft drives the sleeve to rotate until the nuts are tightened. Repeat the aforementioned work to tighten the remaining diagonal nuts to complete the work of loading the wheels.

The beneficial effects of the utility model are: using the dual-nut synchronous installation and removal device to replace the wheel with the hand-held 12V electric motor saves time and high work efficiency, facilitates the realization of the same pretightening force of the diagonal nuts, improves the fatigue life of the bolt and the installation of the wheel. reliability.

Description of drawings

Fig. 1 is a three-dimensional partial sectional view of an embodiment of the utility model.

Detailed ways

Please refer to shown in Fig. 1, the utility model is made up of two magnetic sleeves 1 and a speed change device 2, and the speed change device 2 is composed of an input shaft 21, a driving gear 22, an output shaft 23, a driven gear 24, a support 26 , an outer cover 27, an end cover 28 and a nylon bushing 29, the outer cover 27 is covered on the outside of the bracket 26, the end cover 28 is placed on the front of the outer cover 27, and the speed change device 2 is covered between the outer cover 27 and the end cover 28 , the driving gear 22 is sleeved and fixed on the input shaft 21, the input shaft 21 is sleeved in the bracket 26 with a nylon sleeve 29, the driven gear 24 is sleeved and fixed on the output shaft 23, and the two output shafts 23 are located symmetrically on the input shaft 21 on both sides, two output shafts 23 are sleeved in the bracket 26 with nylon bushings 29, and the driving gear 22 meshes with the two driven gears 24 on both sides; the two sleeves 1 are located outside the end cover 28, and the two The two sleeves 1 are sheathed on the outer ends of the two output shafts 23 respectively.

The output shaft 23 at the connection between the sleeve 1 and the output shaft 23 is sleeved with a first elastic circlip 4 .

The second elastic circlip 5 is sleeved on the rear end of the output shaft 23 located inside the wall of the housing 27 .

The rear end of the input shaft 21 is sheathed with a third circlip 6 .

The working process and principle of the present embodiment are as follows:

1. Disassembly process: set two sleeves 1 on the two nuts at the opposite corners of the wheel, set the electric motor on the rear end of the input shaft 21, the electric motor drives the input shaft 21 according to the direction of rotation of the nut, and the input shaft 21 drives the driving gear 22 to rotate, the driving gear 22 drives the driven gear 24 to rotate, the output shaft 23 drives the sleeve 1 to rotate until the nut is unscrewed, repeat the aforementioned work to unscrew the remaining diagonal nuts, and complete the work of unloading the wheel;

2. Installation process: Put the two nuts in the sleeve 1, align the nuts with the two bolts at the opposite corners of the wheel, the electric motor drives the input shaft 21 in the opposite direction of the nuts, and the input shaft 21 drives the driving gear 22 to rotate , the driving gear 22 drives the driven gear 24 to rotate, and the output shaft 23 drives the sleeve 1 to rotate until the nuts are tightened. Repeat the aforementioned work to tighten the remaining diagonal nuts to complete the work of loading the wheels.

Claims (1)

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.

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