CN2442796Y

CN2442796Y - Portable hand-operated bearing pressure assembling device

Info

Publication number: CN2442796Y
Application number: CN 00226873
Authority: CN
Inventors: 师耀哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-13
Filing date: 2000-10-13
Publication date: 2001-08-15
Anticipated expiration: 2010-10-13

Abstract

The utility model relates to a hand-operated shaft bearing pressure assembling device, which comprises a hollow screw rod and a screw nut of a screw rod, wherein, the outer part of the screw nut of a screw rod is sheathed with a transverse rod, and both ends of the transverse rod are provided with a push rod with a hooked pin; the lower end of the screw rod is provided with an inner cone sleeve and an opening elastic outer cone sleeve clip, and the upper end of the outer cone sleeve clip is provided with a non-return ring which is connected with a non-return rod which passes through a cavity of a screw rod; the other end of the non-return rod is inserted in a top hole of a pressure sleeve at the upper end of the screw nut of a screw rod, and a pressure spring is arranged between the pressure sleeve and the non-return rod. When the screw nut of a screw rod is rotated, the non-return rod exerts force on the outer cone sleeve clip to clamp a shaft head, and simultaneously, the push rod moves down with the screw nut of a screw rod to press the shaft bearing into a shaft extension.

Description

Portable manual bearing press mounting device

The utility model relates to a kind of manual installation instrument, particularly a kind of manual bearing press mounting device.

At present, bearing is installed in hot jacket method or the cold-press methods of adopting on the shaft extension more.Needing in cold-press method with special press device and frock, also have the instrument that directly utilizes hammer and so on that bearing is packed in the shaft extension, particularly in repairing trades, all is to utilize this simple tools to carry out the installation of bearing basically.This method is had relatively high expectations to operating personnel's practical experience, careless slightly will the scuffing with damage of bearings or with shaft extension.No matter be that hot jacket or above-mentioned manual cold charge are all inconvenient.Chinese patent CN86203484 discloses a kind of omnipotent bearing pull and press device, the nut that it has a screw mandrel and matches with it, in the screw mandrel lower end yoke is housed, the sleeve that the yoke lower end is equipped with the circular cone screw mandrel and is matched with it, it is flexible to utilize circular cone advance and retreat to drive flexible arm-tie, with bearing from pulling out or being pressed into.This apparatus structure is complicated, and it is very inconvenient to operate, so be difficult to promote the use of in repairing trades.

Task of the present utility model provides a kind of simple in structure, easy to operate, and the stronger portable manual bearing press mounting device of versatility.

Task of the present utility model is to realize in the following way: the portable manual bearing press mounting device that is provided comprises a leading screw and feed screw nut with handles with matching.Improvements of the present utility model are that said leading screw is hollow leading screw, the outer whippletree of suit of said feed screw nut, the push rod of a buckle pin respectively is equipped with at these whippletree both ends, the inner conical drogue of a thread connection is equipped with in above-mentioned leading screw lower end, opening elasticity outer cone cartridge clip is housed in this inner conical drogue, be provided with a Non-return ring between the upper end of outer cone cartridge clip and above-mentioned leading screw lower surface, connect a retaining bar that passes through aforementioned leading screw cavity on the Non-return ring, the other end of this retaining bar is inserted in from the apical pore of the extended gland in aforementioned feed screw nut upper end, and a compression spring is housed between the shaft shoulder of gland and retaining bar.Promptly when moving down with feed screw nut, gland can impose a downward thrust for the retaining bar by the compression spring.Clamp spindle nose with the outer cone cartridge clip during pressing bearing, push rod hook pin is withstood bearing face, the rotating threaded shaft nut, gland moves down with the relative leading screw of feed screw nut, and is by the retaining pole pair outer cone cartridge clip application of force that spindle nose more folder is tighter, and leading screw can not be moved.Meanwhile, push rod also moves down with feed screw nut, by push rod hook pin bearing is pressed into shaft extension.

The utility model has the advantages that simple in structurely, compact, volume is little, operates also very convenient.Owing to only utilized the one-level lead screw transmission, more laborsaving during operation so transfer efficiency is higher, being pressed into of bearing is also relatively more steady.

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

Accompanying drawing is the structure chart of a specific embodiment of the utility model.

As shown in the figure: screw mandrel 1 is the inverted T-shaped of hollow, and mother lead screw 2 is equipped with on its top, is installing handle 3 on the nut 2.Whippletree 4 is sleeved on the feed screw nut 2 by plain thrust bearing 5, radial bearing 6, and nut 7 is used for the axial location of bearing 5, and gland 8 is used for the axial location of bearing 6.Push rod 9 is equipped with at the two ends of whippletree 4, this push rod 9 be kink on whippletree 4, and form by straight-bar 91 and hook pin 92 two parts, wherein straight-bar 91 connects firmly with hook pin 92 usefulness screws and is in the same place.Like this, only need to change the hook pin and just can adapt to press-fiting of different size bearing.The T shape lower end of leading screw 1 is provided with screw thread, is used to install inner conical drogue 10, refills the elasticity outer cone cartridge clip 11 of an opening in the inner conical drogue 10, and the spindle nose diameter of the internal diameter of outer cone cartridge clip 11 and bearing to be installed adapts.Be provided with a Non-return ring 12 between the lower surface of the upper end of external conical sleeve folder 11 and leading screw 1, different big or small outer cone cartridge clips should be equipped with corresponding Non-return ring.Retaining bar 13 passes from the inner chamber of leading screw 1, and the one end links to each other with Non-return ring 12, and the other end inserts in the apical pore of gland 14, and gland 14 is connected as a single entity with feed screw nut 2, can think the extension of nut 2.One end of compression spring 15 is pressed on the shaft shoulder of retaining bar 13, and the other end withstands on the gland 14.According to shaft extension length and spindle nose external diameter, select suitable push rod and outer cone cartridge clip when press-fiting.Earlier clamp spindle nose 16, and preliminary pretension with inside and outside tapered sleeve, then the screw thread by leading screw 1 lower end with inner conical drogue with leading screw 1 connection, like this leading screw 1 just with spindle nose 16 relative fixed.Hook pin 92 on the push rod 9 is withstood on the bearing to be press-fited 17.During by handle 3 rotating threaded shaft nuts 2, nut 2 moves down, gland 14 on the nut 2 moves down thereupon, and by compressing spring 15 to 13 1 downward power of retaining bar, again by Non-return ring 12 with outer cone cartridge clip 11 to pressing down, thereby opening outer cone cartridge clip 11 is further tightened spindle nose 16 is held tighter, leading screw 1 can not be moved relative to spindle nose 16.Meanwhile, give 17 1 downward pressure of bearing to be installed again by whippletree 4, push rod 9 during the moving down of feed screw nut 2, thereby bearing 17 is pressed in the shaft extension 18 gradually.

Claims

1, a kind of portable manual bearing press mounting device, comprise a leading screw (1) and feed screw nut with handles with matching (2), it is characterized in that said leading screw (1) is hollow leading screw, said feed screw nut (a 2) whippletree of outer suit (4), the push rod (9) of a buckle pin respectively is equipped with at these whippletree both ends, the inner conical drogue (10) of a thread connection is equipped with in above-mentioned leading screw (1) lower end, opening elasticity external conical sleeve (11) folder is housed in this inner conical drogue, be provided with a Non-return ring (12) between the upper end of outer cone cartridge clip (11) and above-mentioned leading screw (1) lower surface, Non-return ring (12) is gone up and is connected a retaining bar (13) that passes through aforementioned leading screw cavity, the other end of this retaining bar is inserted in from the apical pore of the aforementioned feed screw nut extended gland in upper end (14), and a compression spring (15) is housed between the shaft shoulder of gland (14) and retaining bar (13).

2, manual bearing press mounting device as claimed in claim 1, it is characterized in that push rod (9) be kink on whippletree (4), and form by straight-bar (91) and hook pin (92) two parts, straight-bar (91) and hook pin (92) connect firmly together with screw.