CN2723128Y

CN2723128Y - Vertical bearing part dismantling device

Info

Publication number: CN2723128Y
Application number: CN 200420060215
Authority: CN
Inventors: 尹明善; 丁邦隆; 郭长福
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2004-07-09
Filing date: 2004-07-09
Publication date: 2005-09-07
Anticipated expiration: 2014-07-09

Abstract

The utility model discloses a vertical bearing part dismantling device, mainly comprising a dismantling head, a cylinder block, a machine frame 3 and a baffle 4. The upper side of the dismantling head is provided with the cylinder block which is provided with two independent upper and lower cylinder chambers 23, 24. The upper end of a piston shaft 21 in the upper cylinder chamber 23 is arranged on the machine frame 3, and the lower end of the piston shaft 22 in the lower cylinder chamber 24 is connected with a mandrel 11 of the dismantling head. The upper and lower cylinder chambers 23, 24 are respectively provided with two air holes which are arranged on an air source pipe passage respectively through a gas pipe 25 and a gas valve switch 26. The upper end of an expansion pipe 12 is connected with the bottom of the cylinder block 2. The baffle 4 arranged beneath the dismantling head is provided with a baffle square hole 5 which is arranged right beneath the dismantling head. The utility model capable of being operated by one person has the advantages of convenient operation, labor saving, high production efficiency and convenient installation, removal and replacement of the dismantling head.

Description

The provision for disengagement of vertical bearing class part

One, technical field:

The utility model relates to a kind of extracting tool, in particular for the demountor of dismounting engine or other machine upper bearing (metal) class part.

Two, background technology:

At present, hand disassembly is generally adopted in the dismounting of blind hole inner bearing class part on machine or the engine.Also useful special pneumatic type stripping attachment, as publication number 2557293, patent No. ZL02275618.3, the utility model name is called and has just disclosed a kind of stripping attachment that is specifically designed to parts such as interior each class bearing of blind hole, oil sealing in enormous quantities, the job type ground teardown of engine or the engine in the Chinese utility model patent of " pneumatic bearing stripping attachment ".This stripping attachment mainly by guide blot, connect cover, nut, special use and tear head, cover plate and pressing plate etc. open and form, the wherein special-purpose head of tearing open is for by conical head bolt and be set on the outer expansion bolt of conical head bolt and tear head open and constitute, nut sleeve is connected on the conical head bolt and is positioned at the top that expansion bolt is torn head open, guide blot and conical head bolt link by connecing cover, cover plate is positioned on the pressing plate and with expansion bolt tears the head thread socket open, cover plate also can be made gear-like, and in the one side one driving gear and its engagement is set.During use, after expansion bolt torn open head and put the brearing bore that needs dismounting into, need above-mentioned nut be blocked by spanner, then with small size pneumatic gun head butt joint guide blot, pull the counter clockwise direction trigger of small size pneumatic gun head, it is done is rotated counterclockwise, the conical head bolt spiral rises and locks above-mentioned nut, make expansion bolt tear the head expansion open simultaneously and hold brearing bore tightly, after the spanner that blocks above-mentioned nut withdrawed from, pull the counter clockwise direction trigger of small size pneumatic gun head once more, make and connect cover and conical head bolt vertical lifting, drive expansion bolt and tear a vertical lifting (also can tear head open) open, thereby bearing is broken away from from being disassembled parent part, finish whole unloading process by the cover plate clockwise direction being rotated promote expansion bolt.As seen, this stripping attachment in use also will be used spanner, first-class other aid of pneumatic gun, and complicated operation, effort, often needs two people to finish jointly, and sometimes even will use both hands and feet, inefficiency is used extremely inconvenient.

Three, summary of the invention:

The purpose of this utility model provides the provision for disengagement of a kind of vertical bearing class part, solves existing this type of demountor complicated operation, effort, and production efficiency is low, inconvenient problem with use.

The technical solution of the utility model is: it comprises by axle and is set on the head of tearing open that the outer expansion tube of axle forms, wherein have breach on the expanding end tube wall of expansion tube, and this breach evenly distributes along the gyratory directions of expansion tube, the expanding end of expansion tube and the tail end of axle have respectively be complementary in, the male-tapered face, its architectural feature is: A, described top of tearing head open is provided with cylinder block, this cylinder block has two independently to go up, the lower cylinder chamber, the axis of the piston upper end in the upper cylinder chamber is connected on the frame, the axis of the piston lower end in the lower cylinder chamber links to each other with described axle of tearing head open, on, respectively there are two pores to be connected an end of normally-open normally-close air valve switch respectively by tracheae on the lower cylinder chamber, the other end of normally-open normally-close air valve switch is connected on the source of the gas pipeline, and the upper end of described expansion tube is connected on the shell body of cylinder block; B, described tear open the head the below be provided with baffle plate, baffle plate is provided with the baffle plate square hole, this baffle plate square hole be positioned at described tear open the head under.

Two pores of cylinder block upper cylinder chamber air inlet or give vent to anger under the control of normally-open normally-close air valve switch in the utility model, the i.e. chamber air feed or the exhaust of piston top and the bottom in this cylinder chamber, upper and lower surface at piston produces pressure differential, make the axis of the piston do to descend or ascending motion, because this axis of the piston upper end is connected on the frame, therefore cylinder block integral body is done to descend or ascending motion with respect to frame, and head is whole to descend or rise thereby drive is torn open; The air inlet or give vent to anger under the control of normally-open normally-close air valve switch of two pores of lower cylinder chamber, be the chamber air feed or the exhaust of piston top and the bottom in the downward cylinder chamber, upper and lower surface at piston produces pressure differential, make the axis of the piston do to descend or ascending motion, tear open on the axle because this axis of the piston upper end is connected, tear moving downward or upward of an axle open thereby drive.Cylinder block is whole to descend to making and tears head open and enter in the endoporus of bearing demolition class part, the axis of the piston decline drive in the lower cylinder chamber is torn an axle open and is moved down, under the squeezing action of the inside and outside taper surface that expansion tube expanding end and axle tail end are complementary, the expanding end of expansion tube expands outwardly promptly bearing demolition class part, the axis of the piston in the upper cylinder chamber is risen, driving cylinder block moves on the whole, and, just bearing class part can be disassembled from engine or other machine very like a cork by the barrier force of baffle plate.

The utility model has the advantages that: simple to operate, laborsaving, a people just can independently finish, and the production efficiency height, tears the installation of head open and changes all very convenient.

Four, description of drawings:

Fig. 1 is the structural representation of embodiment 1 in the utility model;

Fig. 2 is the structural representation of cylinder block among Fig. 1;

Fig. 3 is a structural representation of tearing head among Fig. 1 open;

Fig. 4 be among Fig. 3 expansion tube 12 partly cut open figure;

Fig. 5 is the A-A profile of Fig. 4;

Fig. 6 is the structural representation of embodiment 2 in the utility model;

Fig. 7 is the structural representation of cylinder block among Fig. 6;

Fig. 8 is the partial sectional view of cylinder block among Fig. 6.

Five, the specific embodiment:

The meaning of each label is among Fig. 1 to Fig. 8: 11 axles, 111 male-tapered faces, 12 expansion tubes, 121 breach, 122 inner conical faces, 123 annular flange, 3 frames, 4 baffle plates, 5 baffle plate square holes, 7 mount pads, 8 cover plates, 9 adapter sleeves, 10 nuts, 13,14,15 and 16 is passage, 17 damping panels, 18 elastic axis, 19 damping springs, 20 wheels, 21 lower piston axles, 22 upper piston axles, upper cylinder chambers 23,

lower cylinder chambers

24,25 tracheaes, 26 normally-open normally-close air valve switch.

Implement one:

Referring to Fig. 1 to Fig. 5, tear head in the utility model open by axle 11 and be set on the outer expansion tubes 12 of axle 11 and form, wherein have breach 121 on the expanding end tube wall of expansion tube 12, and this breach 121 evenly distributes along the gyratory directions of expansion tube 12, the tail end of the expanding end of expansion tube 12 and axle 11 have respectively be complementary in, male-tapered face 122,111, described top of tearing head open is provided with cylinder block, this cylinder block has two independently to go up,

lower cylinder chamber

23,24, the axis of the piston 22 upper ends in the upper cylinder chamber 23 are connected on the frame 3, the axis of the piston 21 lower ends in the lower cylinder chamber 24 link to each other with described axle 11 of tearing head open, on,

lower cylinder chamber

23,24 housing external diameters size is consistent, on, lower cylinder chamber 23, two pores 13 are respectively arranged on 24,15 and 14,16 are connected an end of normally-open normally-close air valve switch 26 respectively by tracheae 25, the other end of normally-open normally-close air valve switch 26 is connected on the source of the gas pipeline, and the upper end of described expansion tube 12 is connected the bottom of cylinder block; B, described tear open the head the below be provided with baffle plate 4, baffle plate 4 is provided with baffle plate square hole 5, this baffle plate square hole 5 be positioned at described tear open the head under.For guaranteeing two pores 13, the 15 above and below air inlet or the exhaust of piston in cylinder chamber 23 all the time on the upper cylinder chamber 23, two

pores

13,15 are preferably driveed top and the bottom in cylinder chamber 23 respectively.In like manner, also be the same for two

pores

14,16 on the lower cylinder chamber 24.

As shown in Figure 1, the below of baffle plate 4 is provided with the damping workbench.This damping workbench is made up of damping panel 17, elastic axis 18 and damping spring 19, and damping spring 19 is enclosed within on the elastic axis 18 and is in its pre-compressed state, and damping panel 17 is installed on the elastic axis 18 and is pressed in the top of damping spring 19.Baffle plate 4 is by on the side plate that is bolted to frame 3.Wheel 20 is installed on the base plate of frame 3, is convenient to whole demountor and moves.During dismounting, interior dismounting parent part is placed on the damping workbench.

As shown in Figure 3, the inside and outside taper surface 122,111 that the tail end of the expanding end of expansion tube 12 and axle 11 is complementary is up big and down small taper surface, this structure can guarantee that the tube wall of expansion tube expanding end is thick than other position, elastic strength is better, grasp is strong, and can successively axle 11 and expansion tube 12 be installed respectively when being installed on stripping attachment or other instrument, otherwise when changeing, therefore more convenient.The expanding end outer wall of expansion tube 12 radially is provided with annular flange 123, when expansion tube 12 stretches into the endoporus of bearing class part, is contacted by the inner hole wall of annular flange 123 with bearing class part, can guarantee to tear open the promptly reliability of bearing class part of head.

The upper end of Fig. 1 central shaft 11 is threaded with the lower end of the axis of the piston 21 in the lower cylinder chamber 24, and the upper end of expansion tube 12 is threaded on the adapter sleeve 9, and adapter sleeve 9 is connected the bottom of cylinder block by nut 10.When installing or changeing, expansion tube 12 is screwed off adapter sleeve 9, adapter sleeve 9 is screwed off nut 10, just can carry out corresponding installation or change, very convenient.

Implement two:

Referring to Fig. 6, Fig. 7 and Fig. 8, in this example, except that following description, other structure is identical with example 1, and the upper cylinder chamber 23 of cylinder block is bigger than lower cylinder chamber 24, and axle 11 and expansion tube 12 all are T-shape, the upper end of axle 11 is threaded with the lower end of the axis of the piston 21 in the lower cylinder chamber 24, the upper end of expansion tube 12 is stretched in the mount pad 7, and below with cover plate 8 spacing, the upper end of mount pad 7 is connected on the shell body of cylinder block 2.When installing or changeing, only need cover plate 8 taken off from mount pad 7 and get final product, convenient and swift.

The operation principle of operation principle: the utility model embodiment 1 and embodiment 2 is identical, as Fig. 1, shown in Figure 6, the engine or other machine that are disassembled are placed on the damping workbench of baffle plate 4 belows, and allow the endoporus of bearing demolition class part aim at the head of tearing open of top, pull pore 13 on the cylinder block upper cylinder chamber 23, the normally-open normally-close air valve switch 26 of 15 correspondences, the source of the gas pipeline is communicated with pore 15 by tracheae 25, gases at high pressure enter lower part of piston chamber the upper cylinder chamber 23 from pore 15, simultaneously, pore 13 is by tracheae 25 outside exhausts, in the upper cylinder chamber 23 piston on, lower surface produces pressure differential, under the promotion of gas, move on the piston in the upper cylinder chamber 23, because this axis of the piston upper end is connected on the frame 3, therefore cylinder block integral body moves down with respect to frame 3, and drive is torn an integral body open and moved down, and tears head open and enters in the endoporus of bearing class part;

Pull pore 14 on the cylinder block lower cylinder chamber 24, the normally-open normally-close air valve switch 26 of 16 correspondences, the source of the gas pipeline is communicated with pore 14 by tracheae 25, the upper chamber that gases at high pressure enter piston the lower cylinder chamber 24 from pore 14, simultaneously, pore 16 is by tracheae 25 outside exhausts, in the lower cylinder chamber 24 piston on, lower surface produces pressure differential, under the promotion of gas, piston moves down in the lower cylinder chamber 24, because this axis of the piston lower end is connected and tears open on the axle 11, thereby drive is torn an axle 11 open and is moved down, expansion tube 12 expanding ends and axle 11 tail ends be complementary in, male-tapered face 122, under 111 the squeezing action, the expanding end of expansion tube 12 expands outwardly promptly bearing demolition class part;

Rightabout is pulled pore 13 on the cylinder block upper cylinder chamber 23, the normally-open normally-close air valve switch 26 of 15 correspondences, the source of the gas pipeline is communicated with pore 13 by tracheae 25, the upper chamber that gases at high pressure enter piston the upper cylinder chamber 23 from pore 13, simultaneously, pore 15 is by tracheae 25 outside exhausts, in the upper cylinder chamber 23 piston on, lower surface produces pressure differential, under the promotion of gas, piston moves down in the upper cylinder chamber 23, because this axis of the piston upper end is connected on the frame 3, therefore cylinder block integral body moves up with respect to frame 3, the engine that drive is disassembled or other machine move upward, when the engine that is disassembled or other machine upwards touched plate washer 4, under the barrier effect of plate washer 4, bearing class part separated from engine or other machine that is disassembled;

Rightabout is pulled pore 14 on the cylinder block lower cylinder chamber 24, the normally-open normally-close air valve switch 26 of 16 correspondences, the source of the gas pipeline is communicated with pore 16 by tracheae 25, gases at high pressure enter lower part of piston chamber the lower cylinder chamber 24 from pore 16, simultaneously, pore 14 is by tracheae 25 outside exhausts, in the lower cylinder chamber 24 piston on, lower surface produces pressure differential, under the promotion of gas, move on the piston in the lower cylinder chamber 24, because this axis of the piston lower end is connected and tears open on the axle 11, thereby drive is torn an axle 11 open and is moved upward, the tail end of tearing an axle 11 open upwards returns to initial bit, the expanding end of expansion tube 12 resets and loses tensile force, and bearing class part drops from tearing head open, has so far just finished whole dismantlement work.

The utility model also can be used for dismantling the revolving parts that is installed in the band endoporus on engine or other machine by tight fit.In addition, also can adopt hydraulic way to come moving up and down of driven plunger axle.

Claims

1, the provision for disengagement of a kind of vertical bearing class part, comprise by axle (11) and be set on the head of tearing open that the outer expansion tube (12) of axle (11) forms, wherein have breach (121) on the expanding end tube wall of expansion tube (12), and this breach (121) evenly distributes along the gyratory directions of expansion tube (12), the tail end of the expanding end of expansion tube (12) and axle (11) have respectively be complementary in, male-tapered face (122,111), it is characterized in that: A, described top of tearing head open is provided with cylinder block, this cylinder block has two independently to go up, lower cylinder chamber (23,24), the axis of the piston (22) upper end in the upper cylinder chamber (23) is connected on the frame (3), the axis of the piston (21) lower end in the lower cylinder chamber (24) links to each other with described axle (11) of tearing head open, on, lower cylinder chamber (23,24) respectively there are two pores to be connected an end of normally-open normally-close air valve switch (26) respectively by tracheae (25) on, the other end of normally-open normally-close air valve switch (26) is connected on the source of the gas pipeline, and the upper end of described expansion tube (12) is connected the bottom of cylinder block; B, described tear open the head the below be provided with baffle plate (4), baffle plate (4) is provided with baffle plate square hole (5), this baffle plate square hole (5) be positioned at described tear open the head under.

2, vertical bearing class part according to claim 1 provision for disengagement, it is characterized in that: the below of described baffle plate (4) is provided with the damping workbench, this damping workbench is made up of damping panel 17, elastic axis 18 and damping spring 19, damping spring 19 is enclosed within on the elastic axis 18 and is in its pre-compressed state, and damping panel 17 is installed on the elastic axis 18 and is pressed in the top of damping spring 19.

3, vertical bearing class part according to claim 1 provision for disengagement is characterized in that: the inside and outside taper surface (122,111) that the tail end of the expanding end of described expansion tube (12) and axle (11) is complementary is up big and down small taper surface.

4, vertical bearing class part according to claim 1 provision for disengagement is characterized in that: the expanding end outer wall of described expansion tube (12) radially is provided with annular flange (123).

5, according to claim 1 or 2 or 3 or 4 described vertical bearing class part provisions for disengagement, it is characterized in that: the upper end of described axle (11) is threaded with the lower end of the axis of the piston (21) in lower cylinder chamber (24), the upper end of expansion tube (12) is threaded on the adapter sleeve (9), and adapter sleeve (9) is connected on the shell body of cylinder block (2) by nut (10).

6, according to claim 1 or 2 or 3 or 4 described vertical bearing class part provisions for disengagement, it is characterized in that: described axle (11) and expansion tube (12) all are T-shape, the upper end of axle (11) is threaded with the lower end of the axis of the piston (21) in lower cylinder chamber (24), the upper end of expansion tube (12) is stretched in the mount pad (7), and below with cover plate (8) spacing, the upper end of mount pad (7) is connected the bottom of cylinder block (2).