CN203843780U

CN203843780U - Damage-free demounting tool for precision bearings

Info

Publication number: CN203843780U
Application number: CN201420214943.XU
Authority: CN
Inventors: 王维清
Original assignee: Shaanxi Baocheng Aviation Instrument Co Ltd
Current assignee: Shaanxi Baocheng Aviation Instrument Co Ltd
Priority date: 2014-04-29
Filing date: 2014-04-29
Publication date: 2014-09-24
Anticipated expiration: 2024-04-29

Abstract

The utility model provides a damage-free demounting tool for precision bearings. The damage-free demounting tool comprises a left drag hook and a right drag hook. The left drag hook and the right drag hook are respectively of a semi-cylinder structure, the lower ends of two semi-cylinders are guided through guide pins and the upper ends are inserted together through an inserted pin so as to form a cavity cylinder, the two ends of the inserted pin stretch outside the cavity cylinder, a platform is arranged on two sides of the lower portion of the cavity cylinder, a notch I is formed in the platform, jaw parts are arranged on the other two sides of the lower portion of the cavity cylinder, the cavity cylinder is sleeved with a shaft sleeve, the shaft sleeve and the cavity cylinder are in clearance fit, a nut is screwed with external threads on the shaft sleeve, the upper end face of the nut abuts against the lower end face of the inserted pin, the inserted pin drives the left drag hook and the right drag hook to move upwards when the nut is screwed, and meanwhile a notch II for receding from a product wire is formed in the portion, corresponding to the notch I, of the shaft sleeve. The damage-free demounting tool is simple in structure, low in cost, suitable for demounting the precision bearings in high-speed small-and-medium mechanical and electrical products with relatively-closed installing positions and high manufacturing cost, stable in motion, gentle in demounting force and free of damage to the products.

Description

Precision bearing not damaged works the instrument of unloading

Technical field

The utility model belongs to bearing to be risen and unloads technical field of tools, is specifically related to a kind of precision bearing not damaged and works the instrument of unloading, and the not damaged that is particularly arranged on the middle-size and small-size precision bearing in relative closure spatial axes rises and unloads.

Background technology

Bearing is applied very wide in various machines or electronic product; all to adopt the magnitude of interference to be pressed in corresponding pedestal; once test performance index does not meet product technology requirement after assembling; will dismantle the parts such as bearing; correlated parts is reprocessed, and bearing is wear part in addition, sometimes needs dismounting to upgrade; and the position that bearing is installed is different, when dismounting, usually can meet difficulty.If be arranged on the little space of relative closure, because structure is little, center also has compared with the part such as major axis, wire, compact conformation, free-hand cannot dismounting; Maybe cannot complete this work by general common tool, or waste time and energy and also cause precision bearing damage even to scrap, carry out not damaged dismounting and be unable to handle at all, therefore be necessary to propose to improve.

Utility model content

The technical problem that the utility model solves: provide a kind of precision bearing not damaged to work the instrument of unloading, by turn nut, the claw of Zola's hook and right drag hook lower end is transferred to bearing, convenient and swift, volume is little, easy to operate, cost is low, can fast the precision bearing not damaged being arranged in relative closure spatial axes be taken out.

The technical solution adopted in the utility model: precision bearing not damaged works the instrument of unloading, there is Zola's hook and right drag hook, described Zola's hook and right drag hook are semicylinder structure, lead by pilot pin in described two semicylinder lower ends, upper end plugs together rear formation cavity cylinder by latch and cavity cylinder outside is stretched out at latch two ends, both sides, described cavity cylinder bottom are shaped with and on platform and platform, are shaped with notch I, other both sides, cavity cylinder bottom are equipped with claw, axle sleeve is sleeved on cavity cylinder and both matched in clearance, external screw thread on nut and axle sleeve screws and nut upper surface pushes against latch lower surface and drive by latch on Zola's hook and right drag hook and move in the time that turn is female, simultaneously, axle sleeve and notch I corresponding position are shaped with the notch II of dodging product wire.

Wherein, the semicylinder top of described Zola's hook and right drag hook is all shaped with the horizontal pin-and-hole with latch adaptation, semicylinder bottom be shaped with two all with the pin-and-hole of pilot pin adaptation, described pin-and-hole is positioned at horizontal pin-and-hole below and point occupy both sides, transverse bolt hole.

Further, in described Zola's hook or right drag hook outside wall surface, be shaped with cannelure, on described axle sleeve, be shaped with transverse holes, insert in transverse holes straight pin one end, and the straight pin other end inserts the rotation of restriction Zola hook, right drag hook and latch in cannelure.

Further, on described sleeve outer circle week, be shaped with the annular protrusion of being convenient to hand, on described annular protrusion, be shaped with anti-skidding reticulate pattern.

The utility model is compared with prior art:

1,, rising while unloading bearing, the cavity on axle sleeve and hollow cylinder and cell body can effectively be dodged the part such as major axis, wire, have ensured carrying out smoothly of the work of unloading;

2, simple to operate, cost is low, is specially adapted to the dismounting of precision bearing in installation site relative closure, the middle-size and small-size electronic product of high speed that manufacturing cost is higher;

3, steadily, removal force is soft, to product not damaged in motion.

Brief description of the drawings

Fig. 1 is the utility model structural front view;

Fig. 2 is the utility model structure top view;

Fig. 3 is Zola's hook of the present utility model and right hook structure front view;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is Zola's hook of the present utility model and right hook structure upward view;

Fig. 6 is axle sleeve structure schematic diagram of the present utility model.

Detailed description of the invention

Below in conjunction with accompanying drawing 1-6, a kind of embodiment of the present utility model is described.

Precision bearing not damaged works the instrument of unloading, there is Zola's hook 7 and right drag hook 1, it is characterized in that: described Zola's hook 7 and right drag hook 1 are semicylinder structure, lead by pilot pin 6 in described two semicylinder lower ends, upper end plugs together rear formation cavity cylinder 13 by latch 4 and cavity cylinder 13 outsides are stretched out at latch 4 two ends, described cavity cylinder 13 both sides, bottom are shaped with on platform 18 and platform 18 and are shaped with notch I 8, cavity cylinder 13 other both sides, bottom are equipped with claw 10, axle sleeve 2 is sleeved on cavity cylinder 13 and both matched in clearance, nut 5 screws with the external screw thread 16 on axle sleeve 2 and nut 5 upper surfaces push against latch 4 lower surfaces and driven on Zola's hook 7 and right drag hook 1 and moved by latch 4 in the time of turn nut 5, simultaneously, axle sleeve 2 is shaped with notch I 8 corresponding positions the notch II 14 of dodging product wire, the semicylinder top of described Zola's hook 7 and right drag hook 1 is all shaped with the horizontal pin-and-hole 12 with latch 4 adaptations, semicylinder bottom be shaped with two all with the pin-and-hole 11 of pilot pin 6 adaptations, described pin-and-hole 11 is positioned at horizontal pin-and-hole 12 belows and divides and occupy 12 both sides, transverse bolt hole, in described Zola's hook 7 or right drag hook 1 outside wall surface, be shaped with cannelure 9, on described axle sleeve 2, be shaped with transverse holes 15, insert in transverse holes 15 straight pin 3 one end, straight pin 3 other ends insert the interior restriction of cannelure 9 Zola hook 7, the rotation of right drag hook 1 and latch 4, on described axle sleeve 2 excircles, be shaped with the annular protrusion 17 of being convenient to hand, on described annular protrusion 17, be shaped with anti-skidding reticulate pattern.

When use, first by pin-and-hole 11 interference fit on pilot pin 6 one end and right drag hook 1, make afterwards the claw 10 of right drag hook 1 be put into have needed the bearing outer edge of unloading, the claw of right drag hook 1 10 is moved to bearing lower surface, then Zola's hook 7 is put into bearing opposite side outer rim place, pin-and-hole 11 on Zola's hook 7 is aligned to pilot pin 6, again the claw of Zola's hook 7 10 is placed on to bearing lower surface, now pilot pin 6 other ends insert pin-and-hole 11 matched in clearance in the pin-and-hole 11 on Zola's hook 7 and on pilot pin 6 and Zola's hook 7, now, Zola's hook 7 and right drag hook 1 are combined and form cavity cylinder 13, then the axle sleeve 2 that straight pin 3 is housed is sleeved on the cavity cylinder 13 that Zola's hook 7 and right drag hook 1 form and axle sleeve 2 coordinates with cavity cylinder 13 glade plane spaces, wherein, insert in the transverse holes 15 on axle sleeve 2 straight pin 3 one end, straight pin 3 other ends insert in the cannelure 9 on right drag hook 1, afterwards nut 5 and the external screw thread 16 on axle sleeve 2 are screwed, latch 4 is inserted in the horizontal pin-and-hole 12 of Zola's hook 7 and right drag hook 1 upper end, make afterwards the lower surface of axle sleeve 2 be adjacent to the product plane of bearing below, turn nut 5, because the product plane of axle sleeve 2 lower ends and bearing below is adjacent to, so axle sleeve 2 does not move when turn nut 5, and nut 5 moves up in turn process, thereby promote the upwards translation of latch 4 on it, latch 4 drives Zola's hook 7 and right drag hook 1 with moving on its synchronous linear, thereby the claw 10 of Zola's hook 7 and right drag hook 1 lower end is transferred to bearing, straight pin 3 on axle sleeve 2 can limit Zola's hook 7 and right drag hook 1 with and on latch 4 rotate, simple in structure, easy to operate, and cost is low, be applicable to installation site relative closure, the dismounting of precision bearing in the higher high speed middle and small motor product of manufacturing cost, motion steadily, removal force is soft, to product not damaged.

Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, and the equivalence of being done with content described in the utility model claim therefore all changes, within all should being included in the utility model claim scope.

Claims

1. precision bearing not damaged works the instrument of unloading, there is Zola's hook (7) and right drag hook (1), it is characterized in that: described Zola's hook (7) and right drag hook (1) are semicylinder structure, described two semicylinder lower ends are by pilot pin (6) guiding, upper end plugs together rear formation cavity cylinder (13) by latch (4) and cavity cylinder (13) outside is stretched out at latch (4) two ends, described cavity cylinder (13) both sides, bottom are shaped with on platform (18) and platform (18) and are shaped with notch I (8), other both sides, cavity cylinder (13) bottom are equipped with claw (10), axle sleeve (2) is sleeved on cavity cylinder (13) above and both matched in clearance, external screw thread (16) on nut (5) and axle sleeve (2) screws and nut (5) upper surface pushes against latch (4) lower surface and when turn nut (5) by moving on latch (4) drive Zola's hook (7) and right drag hook (1), simultaneously, axle sleeve (2) is shaped with notch I (8) corresponding position the notch II (14) of dodging product wire.

2. precision bearing not damaged according to claim 1 works the instrument of unloading, it is characterized in that: the semicylinder top of described Zola's hook (7) and right drag hook (1) is all shaped with the horizontal pin-and-hole (12) adaptive with latch (4), semicylinder bottom is shaped with two all pin-and-holes (11) adaptive with pilot pin (6), and described pin-and-hole (11) is positioned at horizontal pin-and-hole (12) below and point occupy both sides, transverse bolt hole (12).

3. precision bearing not damaged according to claim 1 and 2 works the instrument of unloading, it is characterized in that: in described Zola's hook (7) or right drag hook (1) outside wall surface, be shaped with cannelure (9), on described axle sleeve (2), be shaped with transverse holes (15), insert in transverse holes (15) straight pin (3) one end, and straight pin (3) other end inserts the rotation of restriction Zola's hook (7), right drag hook (1) and latch (4) in cannelure (9).

4. precision bearing not damaged according to claim 3 works the instrument of unloading, it is characterized in that: on described axle sleeve (2) excircle, be shaped with the annular protrusion (17) of being convenient to hand, described annular protrusion is shaped with anti-skidding reticulate pattern on (17).