CN208744714U - A kind of gearbox bearing extractor - Google Patents

Abstract

The utility model relates to a kind of gearbox bearing extractors, vehicle maintenance tool technology, including pulling seat, strut, chain and for hooking the drag hook on bearing, pulling seat shape in disk form, the center of pulling seat is provided with the screw hole through pulling seat upper and lower surface, and strut is bolted in screw hole, and the quantity of chain is three, the upper end of every chain is both connected on pulling seat and three chains are distributed by center circumference array of the central axes of pulling seat, and the lower end of every chain is provided with a drag hook；Strut is stud, and the bottom end end face of strut is plane, and the driving portion of driving strut rotation is provided at the top of strut.Using the structure, the utility model is using chain as the arm of force, more flexible in use, schedulable bigger, and when use, drag hook is more easier to hook the suitable position on bearing, a large amount of regulating time is not needed, to greatly improve working efficiency.

Description

A kind of gearbox bearing extractor

Technical field

The utility model belongs to vehicle maintenance tool technical field, in particular to a kind of gearbox bearing extractor.

Background technique

As the pith of car transmissions, being needed in gearbox using a large amount of bearings, bearing is a kind of vulnerable part, Therefore need often dismounting bearing.And the fit system of bearing and gear box casing is mostly to be interference fitted, and the withdrawal space is smaller, Cause bearing dismantling difficult, mostly realizes the disassembly of gearbox bearing using simple special tooling at present.

The title of above-mentioned special tooling, which is called, draws horse comprising pulling seat is screwed onto the screw rod at pulling seat center and is hinged on Transporting persons or goods by cart in pulling seat circumferential direction is provided with the pulling claw for firmly grasping bearing in the free end transported persons or goods by cart.Above-mentioned transport persons or goods by cart is by link mechanism It is made, the axis that could make screw rod by repeatedly reconciling and generation is needed to take the axis collinear of bearing when in use, and It is inconvenient when adjusting, thus greatly reduce working efficiency.

Utility model content

The utility model provides a kind of gearbox bearing extractor, solves gearbox bearing removal work in the prior art Transporting persons or goods by cart on tool is not easy to the technical issues of adjusting and working efficiency is caused to substantially reduce when using.

The utility model is achieved through the following technical solutions: including pulling seat, strut, chain and for hooking the drawing on bearing Hook, the pulling seat shape in disk form, the center of the pulling seat is provided with the screw hole through the pulling seat upper and lower surface, described Strut is bolted in the screw hole, and the quantity of the chain is three, and the upper end of the every chain is both connected to the pulling seat Upper and three chains are distributed by center circumference array of the central axes of the pulling seat, and the lower end of the every chain is respectively provided with There is the drag hook；

The strut is stud, and the bottom end end face of the strut is plane, is provided with described in driving at the top of the strut The driving portion of strut rotation.

Further, in order to preferably realize that the utility model, the drag hook hook body in flat shape, the drag hook end Inside offers the notch through the drag hook.

Further, it in order to preferably realize that the utility model, the driving portion are extension bar, is set at the top of the strut It is equipped with through-hole, the extension bar, which is worn, to be connect in the through-hole.

Further, in order to which the utility model is better achieved, one end of the extension bar is provided with diameter greater than described The other end of the stopper of through-hole aperture, the extension bar is bolted with nut.

Further, in order to which the utility model is better achieved, clamping groove, the card are provided on the pulling seat upper surface The slot bottom center of access slot is provided with the through slot through the pulling seat lower surface, and the width of the through slot is less than the clamping groove Width, the drag hook and the chain sequentially pass through the clamping groove and the through slot, the upper end of the chain from top to bottom It is provided with clamping joint, is formed and is abutted between the clamping joint and the clamping groove groove wall；

The quantity of the clamping groove is three, and three clamping grooves are using the central axes of the pulling seat as center Circle-Array Column distribution.

Further, in order to which the utility model is better achieved, the clamping groove and the through slot are fan groove, described The central axes of clamping groove and the through slot are conllinear with the central axes of the pulling seat, and the arc length of the clamping groove is equal to the through slot Arc length and be greater than the clamping joint length.

Further, in order to which the utility model is better achieved, the longitudal section of the clamping groove is projected as semicircle, described The shape of clamping joint is spherical shape.

Further, in order to which the utility model is better achieved, three clamping grooves and three through slots combine shape At mounting groove group, on the pulling seat setting there are two the mounting groove group, wherein clamping groove in mounting groove group described in one group from The distance of the strut is greater than the clamping groove in mounting groove group described in another group with a distance from the strut.

Further, in order to which the utility model is better achieved, the strut is the screw rod made of stainless steel, the support The top of bar is additionally provided with can be by the magnetized magnetic part of the strut.

Further, in order to which the utility model is better achieved, the magnetic part is magnet base.

The utility model has the advantages that compared to the prior art

Gearbox bearing extractor provided by the utility model, strut made of stud is screwed onto and is set in pulling seat In the screw hole of heart position, three chains are evenly equipped on pulling seat, the lower end of every chain is provided with a drag hook, in strut Top is additionally provided with the driving portion of driving strut rotation, and using the structure, when use, drag hook is hooked in bearing to be removed On, the lower end of strut is withstood on the axis for installing bearing to be removed, is rotated using driving portion driving strut, to pass through chain Power transmission pulls bearing, is removed to drag hook, when in use, schedulable bigger using chain as the arm of force, more Adding flexibly, when use, drag hook is more easier to hook the suitable position on bearing, a large amount of regulating time is not needed, thus Greatly improve working efficiency.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the gearbox bearing extractor in the use of the new type；

Fig. 2 is the structural schematic diagram of the pulling seat in the use of the new type；

Fig. 3 is the top view of pulling seat shown in Fig. 2；

Fig. 4 is the A-A cross-sectional schematic in Fig. 3；

Fig. 5 is the attachment structure schematic diagram of the chain and clamping joint and drag hook in the utility model；

Fig. 6 is the structural schematic diagram of the chain in the use of the new type.

1- pulling seat in figure；11- clamping groove；12- through slot；13- screw hole；2- strut；3- chain；31- clamping joint；4- drag hook； 41- notch；The first hook portion of 42-；The second hook portion of 43-；5- extension bar；51- stopper；6- nut；7- magnet base.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Obtained all other embodiment is put, the range that the utility model is protected is belonged to.

Embodiment 1:

In the present embodiment, a kind of gearbox bearing extractor, including pulling seat 1, strut 2, chain 3 and for hook in bearing On drag hook 4；

Above-mentioned pulling seat 1 shape in disk form is made of hard and the metal material that will not be magnetized, such as aluminium and copper, and And the screw hole 13 through 1 upper and lower surface of the pulling seat is offered in the center of the pulling seat 1, above-mentioned strut 2 is screw rod, the strut 2 bottom end end face is plane, and the top of the strut 2 is provided with driving portion, for driving strut 2 to rotate in screw hole 13, the support Bar 2 with magnetized metal material by that can be made, such as stainless steel.

Chain 3 in the present embodiment is iron chains, and surface is coated with anti-corrosion paint, and the quantity of chain 3 is three, every The upper end of chain 3 is both connected on pulling seat 1 and three chains 3 are distributed by center circumference array of the central axes of pulling seat 1.Every The lower end of root chain 3 is provided with an above-mentioned hook 4.

When use, user will be that three hooks 4 hook on bearing to be removed, and the bottom end of strut 2 is withstood on On the axis for installing bearing to be removed, then rotated using driving portion driving strut 2, strut 2 withstands on axis, drag hook 4 and chain 3 with And the cooperation of pulling seat 1 will apply a pulling capacity to bearing, so that bearing is removed from axis.What the use of the new type provided Gearbox bearing extractor, using chain 3 as the arm of force, compared to the prior art in bearing extractor on connecting rod knot Structure, the utility model is when in use, it is only necessary to hook drag hook 4 on bearing, without the adjusting force that takes much time Arm (namely chain 3), flexibility ratio and schedulable bigger, and then working efficiency is provided significantly.

Embodiment 2:

A kind of specific embodiment of the present embodiment as embodiment, the drag hook 4 in the present embodiment hook body in flat shape, The notch 41 through drag hook 4 is offered on the inside of 4 end of drag hook, in this way, just form two hook portions in the end of drag hook 4, i.e., One hook portion 42 and the second hook portion 43, limiting close to 4 inside of drag hook is the first hook portion 42, another is the second hook portion 43, is passed through Above-mentioned setting, the position of the first hook portion 42 is in the top of the second hook portion 43, and the end of the second hook portion 43 is vertical from zip strip 3 Straight distance is greater than the first vertical range of the hook portion 42 from chain 3.

Using the structure, when use, the first hook portion 42 is hooked on bearing to be removed, apply pulling capacity when It waits, is slid when applying pulling capacity if the first hook portion 42 is not steady in hook on bearing, so that drag hook 4 rises, at this point, Second hook portion 43 will hook on bearing, fall off and cause when applying pulling capacity to reduce and drag hook 4 and bearing occur Dangerous probability, and then improve the safety and practicability of the utility model.

It is worth noting that, linking together by welding between the drag hook 4 in the present embodiment and chain 3.

Embodiment 3:

A kind of specific embodiment of the present embodiment as embodiment 1 in the present embodiment, limits above-mentioned driving portion as reinforcing Bar 5, the extension bar 5 is by stainless steel or iron or copper at being provided with through-hole, above-mentioned extension bar 5 at the top of above-mentioned strut 2 Just it wears and connects in the through hole, and limit the axially vertical of the axis of extension bar 5 and strut 2.

As a kind of more excellent embodiment of the present embodiment, it is big that one end of the extension bar 5 in the present embodiment is provided with diameter When the stopper 51 of above-mentioned through-hole aperture, installation, one end of stopper 51 not set on extension bar 5 is passed through into above-mentioned through-hole, It is bolted with nut 6 in the other end (one end of not set stopper) of extension bar 5, it, can using the cooperation of above-mentioned nut 6 and stopper 51 It is fallen on strut 2 to avoid extension bar 5.

Embodiment 4:

A kind of improvement embodiment of the present embodiment as above-described embodiment, in the present embodiment, on the top of above-mentioned strut 2 It is additionally provided with the magnetic part for magnetizing strut 2, specifically, which is magnet base 7, since magnet base 7 is existing Technology, therefore no longer it is repeated in detail herein, magnet base 7 can when in use magnetize strut 2, without the use of When, so that strut 2 demagnetizes.

Using the structure, when use, applies a magnetic force between the axis for installing bearing to be removed in strut 2, make Frictional force between strut 2 and axis is bigger so that be bonded tighter between strut 2 and axis, avoid using when strut 2 send out Raw inclination and cause the pulling capacity being applied on bearing to bias, further increase the safety of the utility model and practical Property.

Embodiment 5:

A kind of specific embodiment of the present embodiment as above-described embodiment, in the present embodiment, in above-mentioned 1 upper surface of pulling seat It is provided with clamping groove 11, the slot bottom center of the clamping groove 11 is provided with through slot 12, which runs through 1 following table of pulling seat Face, the width of above-mentioned through slot 12 are less than the width of clamping groove 11, have clamping joint 31 in the upper end of above-mentioned chain 3 setting (welding). When specific installation, above-mentioned drag hook 4 and chain 3 are sequentially passed through into clamping groove 11 and through slot 12, above-mentioned clamping joint from top to bottom Formed and abutted between 31 and 11 cell wall of clamping groove, limit the quantity of above-mentioned clamping groove 11 as three, and three clamping grooves 11 with The central axes of pulling seat 1 are the distribution of center circumference array.

Using the structure, the withstanding effect power between 11 cell wall of clamping joint 31 and clamping groove can be transferred to by chain 3 On drag hook 4, drag hook 4 is transferred on bearing again to provide pulling capacity for it.Chain 3 is connected to drawing using this kind of dismountable mode On seat 1, while being capable of providing sufficiently large pulling capacity, installing and dismounting is very convenient.

As a kind of specific embodiment of the present embodiment, clamping groove 11 and through slot 12 in the present embodiment are fan groove (namely the orthographic projection of the clamping groove 11 and through slot 12 be sector), and the central axes of clamping groove 11 and through slot 12 with pulling seat 1 Central axes it is conllinear, the arc length of clamping groove 11 is equal to the arc length of through slot 12 and is greater than the length of clamping joint 31, in this way, to be clamped First 31 have certain activity space in clamping groove 11, when applying pulling capacity, convenient for the automatic fine tune of 3 position of chain Section, so that drag hook 4, which reaches, most preferably hooks tight position.

In addition, the longitudal section of the clamping groove 11 in the present embodiment is projected as semicircle, the shape of clamping joint 31 is spherical shape, card Connector 31 can rotate in clamping groove 11, in this way, the automatic fine for being also convenient for 3 position of chain is adjusted, so that drag hook 4 reaches Most preferably hook tight position.

Embodiment 6:

Preferred forms of the present embodiment as above-described embodiment in the present embodiment, limit three clamping grooves 11 and three A corresponding through slot 12 combines the mounting groove group formed for installing chain 3, and there are two mounting grooves for setting on above-mentioned pulling seat 1 Group, wherein the clamping groove 11 in one group of mounting groove group be greater than with a distance from strut 2 clamping groove 11 in another group of mounting groove group from The distance of strut 2.

In this way, chain 3 can be mounted on to 2 farther away one groups from the strut installations of clamping groove 11 when taking biggish bearing In slot, when taking lesser bearing, chain 3 can be mounted in one group of mounting groove that clamping groove 11 is had a contest from strut 2, thus The scope of application of further expansion the utility model, and then enhance the practicability of the utility model.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power Subject to the protection scope that benefit requires.

Claims (10)

1. a kind of gearbox bearing extractor, it is characterised in that: including pulling seat, strut, chain and for hook on bearing Drag hook, the pulling seat shape in disk form, the center of the pulling seat are provided with the screw hole through the pulling seat upper and lower surface, institute It states strut to be bolted in the screw hole, the quantity of the chain is three, and the upper end of the every chain is both connected to the drawing On seat and three chains are distributed by center circumference array of the central axes of the pulling seat, and the lower end of the every chain is all provided with It is equipped with the drag hook；

The strut is stud, and the bottom end end face of the strut is plane, and the driving strut is provided at the top of the strut The driving portion of rotation.

2. a kind of gearbox bearing extractor according to claim 1, it is characterised in that: the drag hook is hooked in flat shape Body offers the notch through the drag hook on the inside of the drag hook end.

3. a kind of gearbox bearing extractor according to claim 1, it is characterised in that: the driving portion is reinforcing Bar is provided with through-hole at the top of the strut, and the extension bar, which is worn, to be connect in the through-hole.

4. a kind of gearbox bearing extractor according to claim 3, it is characterised in that: one end of the extension bar is set It is equipped with the stopper that diameter is greater than the through-hole aperture, the other end of the extension bar is bolted with nut.

5. a kind of gearbox bearing extractor described according to claim 1-any one of 4, it is characterised in that: the drawing Clamping groove is provided on seat upper surface, the slot bottom center of the clamping groove is provided with through the logical of the pulling seat lower surface Slot, the width of the through slot are less than the width of the clamping groove, and the drag hook and the chain sequentially pass through described from top to bottom Clamping groove and the through slot, the upper end of the chain are provided with clamping joint, shape between the clamping joint and the clamping groove groove wall At abutting；

The quantity of the clamping groove is three, and three clamping grooves are using the central axes of the pulling seat as center circumference array point Cloth.

6. a kind of gearbox bearing extractor according to claim 5, it is characterised in that: the clamping groove and described logical Slot is fan groove, and the central axes of the clamping groove and the through slot are conllinear with the central axes of the pulling seat, the clamping groove Arc length be equal to the through slot arc length and be greater than the clamping joint length.

7. a kind of gearbox bearing extractor according to claim 6, it is characterised in that: the longitudal section of the clamping groove It is projected as semicircle, the shape of the clamping joint is spherical shape.

8. a kind of gearbox bearing extractor according to claim 7, it is characterised in that: three clamping grooves and three A through slot combines to form mounting groove group, and there are two the mounting groove groups for setting on the pulling seat, wherein installing described in one group Clamping groove in slot group be greater than another group with a distance from the strut described in clamping groove in mounting groove group from the strut away from From.

9. a kind of gearbox bearing extractor described according to claim 1-any one of 4, it is characterised in that: the support Bar is the screw rod made of stainless steel, and the top of the strut is additionally provided with can be by the magnetized magnetic part of the strut.

10. a kind of gearbox bearing extractor according to claim 9, it is characterised in that: the magnetic part is magnetic Power seat.