CN2280600Y

CN2280600Y - Two-arm with drawing sleeve

Info

Publication number: CN2280600Y
Application number: CN 96235737
Authority: CN
Inventors: 师耀哲
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-20
Filing date: 1996-03-20
Publication date: 1998-05-06
Anticipated expiration: 2006-03-20

Abstract

The utility model relates to a double arm-type drawing horse which can disassemble and assemble components on a shaft. The utility model comprises a thread rod and two pull hooks; a transverse rod is arranged on the thread rod, and the pull hooks are right-angle pull hooks which are arranged on the transverse rod vertically; the top head of the thread rod is arranged on the end part of the thread rod, and a bearing is arranged between the top head and the thread rod. Therefore, the pull hooks and the top head of the utility model can be conveniently replaced, and the space between the two pull hooks can be adjusted; the components to be disassembled can be disassembled or the components to be assembled can be assembled when the components to the disassembled or the machine of the maintaining device are hooked and the thread rod is rotated. The utility model has the advantages of smooth assembly and disassembly course and strong adaptability.

Description

Double-armly draw horse

The utility model relates to a kind of hand-operated tools from axle dismounting assembling parts, and particularly a kind of have two drag hooks double-arm draws horse.

Existing hand draws horse mostly to be three-pawl type, and as the disclosed Three-claw pull-horse of Chinese patent CN92210261, it has a leading screw that is used to withstand on axle head, and guide pin bushing is housed on the leading screw, and drag hook is hinged on the guide pin bushing.Existing this class drag hook has following problem: 1. an end of drag hook is hinged on the guide pin bushing, and cheicers is less than 90 °, thus a cross component force is always arranged when drawing split part, thereby the unhook phenomenon easily takes place when dismounting; 2. drag hook is non-dismountable, and therefore be difficult to be suitable for the needs of various occasions: 3. leading screw and top are an integral body, must give moment of torsion of split shaft when rotating threaded shaft, thus the stationarity of influence dismounting.

The purpose of this utility model provides-and middle accommodation is big, unloading process is double-arm stably draws horse.

The solution that realizes the utility model purpose is: what provided double-armly draws horse to comprise leading screw and two drag hooks of screw-driven with top, it is characterized in that having a cross bar that is contained on the leading screw, described drag hook is a right-angle retractor, their vertical sleeves are contained on the cross bar, the top of described leading screw is sleeved on the leading screw end, between top and leading screw bearing is housed.Here said drag hook is sleeved on the cross bar and the top is sleeved on and all refers to detachable connection on the leading screw, can change suitable drag hook or top as the case may be during use, rotational lead screw, and cross bar moves, and moves thereby drive drag hook, and part is disassembled from axle.

Compared with prior art, structure of the present utility model is very simple; Because drag hook is to be sleeved on the cross bar, and vertical with cross bar, its hook pin is 90 ° again, so cross component force is almost nil during the split part of drawing, thereby the phenomenon that breaks off relations can not occur, is provided with bearing between top and leading screw in addition, makes unloading process very steady; Because top and drag hook are set on leading screw and the cross bar, change very convenient, and can regulate the spacing of two drag hooks, so can hook the suitable place of waiting to tear part open or hooking the body of institute's maintenance of equipment easily, at this moment, spindle nose or part to be installed, rotational lead screw are withstood in the top, can unload and wait to tear open part or load onto part to be installed, thereby the adaptability of Ben Lama is stronger.

Below in conjunction with accompanying drawing content of the present utility model is illustrated.

Fig. 1 is the structure chart of an embodiment of the utility model

Fig. 2 is the structure chart of another embodiment of the utility model

As shown in Figure 1: there is a hole upper end of leading screw 1, is used for placing plate 2; There is a groove 3 lower end, the axial location that is used to come directly towards, and top 4 is a cone centre, its top is sleeved on the leading screw end, by being stuck in screw (not drawing among the figure) in the groove 4, between the inner bottom surface of leading screw 1 axle head and top 4 ball 5 is housed again, plays the bearing effect its axial location.So when top 4 held out against split shaft, leading screw changeed, and does not change the top.Cross bar 6 is contained on the leading screw 1 by the screw at middle part.Drag hook 7 is a right-angle retractor, is that the through hole by its upper end is sleeved on the cross bar 6, and can slide along cross bar 6, therefore the spacing that can change suitable drag hook and regulate two drag hooks according to concrete split thing.

As shown in Figure 2: have horizontal concrete chute 9 on the cross bar 8, this chute is inserted in the upper end of drag hook 10, and is bound up on the cross bar 8 by locking nut 11.Drag hook 10 can be a monolithic construction, and at this moment, the upper end of drag hook is a screw form, and adopting up and down, two nuts can be fixed on drag hook on the cross bar 8.Drag hook 10 also can be the more piece fabricated structure, and as shown in FIG., it is connect threadably by hook pin 12 and extension bar 13,14 and forms.The leading screw of this example and the structure of top thereof are identical with Fig. 1.

Originally draw the Marko to be equipped with the drag hook of different size specification, to be suitable for the needs of different occasions.

Claims

1, a kind of double-arm horse of drawing, comprise that one has the leading screw (1) of top (4) and two drag hooks (7,10) that driven by leading screw (1), it is characterized in that having a cross bar (6,8) that is contained on the leading screw (1), described drag hook is a right-angle retractor, their vertical sleeves are contained on the cross bar (6,8), the top (4) of described leading screw (1) is sleeved on leading screw (1) end, between top (4) and leading screw (1) bearing is housed.

2, as claimed in claim 1ly draw horse, it is characterized in that drag hook (7) is that through hole by its upper end is sleeved on the cross bar (6).

3, as claimed in claim 1ly draw horse, it is characterized in that having on the described cross bar (8) horizontal concrete chute (9), this chute is inserted in drag hook (10) upper end, and is bound up on the cross bar (8) by locking nut (11).

4, describedly draw horse as claim 2 or 3, it is characterized in that drag hook (10) is the more piece fabricated structure, connect threadably by hook pin (12) and extension bar (13,14) to form.