CN2501706Y

CN2501706Y - Device for mounting or dismounting large screw or nut

Info

Publication number: CN2501706Y
Application number: CN 01254410
Authority: CN
Inventors: 周美伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-27
Filing date: 2001-10-27
Publication date: 2002-07-24
Anticipated expiration: 2011-10-27

Abstract

The utility model discloses a device used to install or demount large screws and nuts, which is characterized by comprising a sleeve (1), a gear frame (2), a gear frame shell (3), a gear shaft (4), a bridge gear (5), a liner (7), a gear cover (8), a wrench (10). A square end (12) at the end of the gear frame (2) is inserted into a square hole (14) of the sleeve (1), the bridge gear (5) is arranged in a bridge gear window (11) of the gear frame (2), the gear shaft (4) is arranged at the center of the gear frame (2), the gear frame shell (3) covers the gear frame (2), when being used a square end (13) of the gear shaft (4) is sleeved with a square hole (21) at one end of the wrench (10). The utility model has the advantage of simple structure, and can be operated only by one person with his own power.

Description

The device of the large-scale screw nut of installation or removal

The utility model belongs to the device of large-scale screw of installation or removal or nut, relates in particular to the device of installation or removal truck wheel screwing or nut.

Screw nut on the truck wheel is twisted very tightly, must be with the installation or removal of powerful degree ability, existing instrument is a sleeve, steel pole, sleeve be nested polygonal screw head or nut, very long steel pole inserts sleeve, with manpower screw is loaded onto and is tightened or dismantle, have by the installation or removal of Electronmotive Force with spigot and socket joint realization screw nut, its weak point is: the former needs very long steel pole, about 1 meter how long, need more manpower, about three people again, the latter is because of using Electronmotive Force, equipment is comparatively complicated, large-scale, need power supply, cost is high again, just have at the specialized maintenance station, screw nut is just difficult to manage if automobile must change the outfit midway.

The purpose of this utility model is to avoid above-mentioned weak point and simple in structure, operable big screw nut installation or removal device of manpower is provided for this reason.The device of the large-scale screw nut of installation or removal, by sleeve, tooth rest, the tooth rest shell, gear wheel shaft, carrier gear, lining, gear cap, wrench is formed, the square spigot of tooth rest end inserts in the square hole of sleeve, idle gear system is in the carrier gear window of tooth rest, gear wheel shaft places the center of tooth rest, tooth rest shell shroud tooth rest, lining is seated on the upper surface of gear of gear wheel shaft, gear cap wears the square spigot of gear wheel shaft, cover tooth rest shell upper surface, be fixed on the tooth rest square spigot of the square hole of wrench one end cover cogwheel shaft during use.The utility model advantage: simple in structure, need only manpower, a people can operate.

Following structure accompanying drawing is described in detail the utility model:

Accompanying drawing 1 is the utility model STRUCTURE DECOMPOSITION scheme drawing.

Accompanying drawing 2 is cutaway views of the utility model sleeve (1).

Accompanying drawing 3 is scheme drawings of the utility model tooth rest (2).

Accompanying drawing 4 is scheme drawings of the utility model tooth rest shell (3).

Accompanying drawing 5 is scheme drawings of the utility model gear wheel shaft (4).

As shown in Figure 1, the utility model is by sleeve 1, tooth rest 2, tooth rest shell 3, gear wheel shaft 4, carrier gear 5, lining 7, gear cap 8, wrench 10 is formed, the square spigot 12 of tooth rest 2 ends inserts in the square hole 14 of sleeve 1, carrier gear 5 is installed on 11 mouthfuls of the carrier gear windows of tooth rest 2, gear wheel shaft 4 places the center of tooth rest 2, tooth rest shell 3 shroud tooth rests 2, lining 7 is seated on the upper surface of gear wheel shaft gear 19, gear cap 8 wears the square spigot 13 of gear wheel shaft 4, cover tooth rest shell 3 upper surfaces, be fixed on the tooth rest 2, the square spigot 3 of the square hole 21 cover cogwheel shaft 4 of wrench 10 1 ends during use, wrench 10 is ratchet wrenches, the 9th, and screw.

Sleeve 1 its interior bottom as shown in Figure 1, 2 can embed hex screw or nut, and its internal upper part can embed the square spigot 12 of tooth rest.Tooth rest 2 is shown in Fig. 1,3, and there is square spigot 12 its bottom, and there are three carrier gear windows 11 at the middle part, and carrier gear 5 device is at window, and its gear teeth are mutually meshing with the gear teeth of gear wheel shaft 4, the gear teeth 17 in the tooth rest shell 3.The tooth rest shell is shown in Fig. 1,3, internal tooth 17 is arranged at its top, meshing with carrier gear, tooth rest shell locating plate 16 is arranged at the bottom, shroud tooth rest 2, gear wheel shaft 4 is shown in Fig. 1,5, the lower end has small column to embed in the center hole 20 on tooth rest 2 chassis, and its gear teeth are mutually meshing with carrier gear 5, and the middle part is a cylinder, cover is with lining 8, top is square spigot 13, exposes outside the gear cap 8, can be chimeric with square hole 21 couplings of ratchet handle 10 1 ends, gear cap 8 is covered in tooth rest shell 3 upper surfaces, is fixed on the tooth rest 2 by pin 6.

During use, the sleeve 1 nut screw to be installed or dismounting that is nested, on the screw or nut of tooth rest shell locating plate 16 around withstanding on, square hole 21 covers of ratchet handle 10 embed the square spigot 13 of gear wheel shafts 4, a manpower rotating ratchet wrench 10 can the rotating screw nut.

Claims

1, the device of the large-scale screw nut of installation or removal, it is characterized in that: by sleeve (1), tooth rest (2), tooth rest shell (3), gear wheel shaft (4), carrier gear (5), lining (7), gear cap (8), wrench (10) is formed, the square spigot (12) of tooth rest (2) end inserts in the square hole (14) of sleeve (1), carrier gear (5) is installed on carrier gear window (11) mouth of tooth rest (2), gear wheel shaft (4) places the center of tooth rest (2), tooth rest shell (3) shroud tooth rest (2), lining (7) is seated on the upper surface of gear wheel shaft gear (19), gear cap (8) wears the square spigot (13) of gear wheel shaft (4), cover the upper surface of tooth rest shell (3), be fixed on the tooth rest (2) square spigot (13) of the square hole (21) of wrench (10) one ends cover cogwheel shaft (4) during use.