CN208457021U - Hollow wheel hub, idler wheel and rolling cage shoe - Google Patents

Abstract

The utility model discloses a kind of hollow wheel hub, idler wheel and rolling cage shoes, and wherein hollow wheel hub includes: bearing block；Closure plate；Baffle；Support sleeve, one end are fixedly connected with closure plate, and the other end is directly or indirectly connect with baffle, the support sleeve and bearing block coaxial line；And taper bush, match there are two, two taper bush inclined-planes relatively cover on support sleeve；Wherein, the connection of baffle and second end is releasable connection.Rolling cage shoe weight according to the utility model is lighter.

Description

Hollow wheel hub, idler wheel and rolling cage shoe

Technical field

The utility model relates to hollow wheel hub used in idler wheel used in a kind of rolling cage shoe and the idler wheel and it is furnished with the rolling The rolling cage shoe of wheel.

Background technique

The utility model is the further improvement to the claimed technical solution of Chinese patent literature CN207161514U, By trying out Related product certain time, wherein there are still the places required further improvement for discovery, and have into one Walk the space of loss of weight.

Specifically, hollow wheel hub disclosed in Chinese patent literature CN207161514U has the bearing of a sleeve pipe structure Seat, and then a radially connected body covered among bearing block is provided, then fill a support in the centrifugation end cap of radially connected body Set provides two end plates, which is annular element, and internal diameter is more than or equal to bearing pedestal bore dia, for constructing the wheel of rubber tire slot Edge；Two end plates at least one and bearing block and/or radially connected body releasable connection；And then provide a pair of of tapered sleeve, two tapered sleeve inclined-planes It is set in the support sleeve relatively to construct rubber tire slot, and the tapered sleeve for being located at least in removable end plate side is removable.Diameter therein It is usually sleeved on bearing block with interference connection type to connector, radially connected body should be in the center of bearing block axial direction in principle Between, otherwise unbalanced to the support of support sleeve everywhere in the axial direction of bearing block, even interference connects no fit-up gap, but When rubber tire unbalance stress, the problem of still may being further exacerbated by rubber tire unbalance stress.

In addition, in Chinese patent literature CN207161514U, such as the detachable side of idler wheel, baffle side also need additionally One end cap is set, and number of packages is relatively more, and whole assembly difficulty can be made relatively large.

Summary of the invention

The utility model is directed to the claimed technical solution of Chinese patent literature CN207161514U, and further progress subtracts Weight, and propose a kind of hollow wheel hub, the utility model further relates to a kind of idler wheel using the hollow wheel hub, and has the idler wheel Rolling cage shoe.

According to the embodiments of the present invention, a kind of hollow wheel hub is provided, comprising:

Bearing block is sleeve pipe structure, has first end and the second end opposite with first end；

Closure plate, the annular distance aperture for the annular slab for constructing first end wheel rim, the annular slab are greater than bearing block bore hole Diameter, and it is less than or equal to first end outer diameter；Closure plate is fixedly connected with first end, and with bearing block coaxial line；

Baffle, to be connected to second end directly or indirectly with the plectane for constructing second end wheel rim, the plectane and axis Hold a coaxial line；

Support sleeve, one end are fixedly connected with closure plate, and the other end is directly or indirectly connect with baffle, the support sleeve and bearing Seat coaxial line；And

Taper bush, match there are two, two taper bush inclined-planes relatively cover on support sleeve, and with first end wheel above-mentioned Edge and second end wheel rim determine the rubber tire slot of V-type；

Wherein, the connection of baffle and second end is releasable connection.

Above-mentioned hollow wheel hub, optionally, the one side of baffle towards bearing block have positioning convex platform, the positioning convex platform and bearing Seat bore cooperation is to guarantee the concentricity between bearing block and baffle.

Optionally, annular space is determined between support sleeve and bearing block；

The support member for being located at annular space second end is provided, the centripetal end of the support member is fixed on bearing block, is centrifuged End is used to support support sleeve；

Support member is used for being fixedly connected between baffle and bearing block.

Optionally, the support member is nut seat, the nut seat at least there are four, and not more than eight, and with bearing Seat axis is axis annular array in annular space second end；

Correspondingly, screw hole is provided with aligning one by one on baffle with nut seat, to be fixedly connected by screw with nut seat.

Optionally, the nut seat is round nut seat.

Optionally, the centripetal end of nut seat and bearing block are welded to connect, and centrifugation end and support sleeve are welded to connect.

Optionally, the connection between closure plate and support sleeve and bearing block is to be welded to connect.

Optionally, in first end, the end face of closure plate towards second end is bonded with first end and forms counterbore in first end；

An end cap with axis hole is provided, the ring flange of the end cap is identical as counterbore aperture and is caught in counterbore, and passes through spiral shell It binds and fits over first end；

Oil sealing is equipped in end cap；

End cap is equipped with the labyrinth seal structure for forming labyrinth seal with wheel between centers far from one end of bearing block.

According to the embodiments of the present invention, additionally provide a kind of using hollow wheel hub above-mentioned as the idler wheel of wheel hub.

According to the embodiments of the present invention, a kind of rolling cage shoe for having aforementioned roller is additionally provided.

According to the embodiments of the present invention, baffle and closure plate form disc, exist in the width direction of hollow wheel hub Biggish hollow parts, whole weight are relatively small.It is claimed relative to Chinese patent literature CN207161514U Technical solution further reduces radially connected body, and is able to further loss of weight.And in baffle side, only one, baffle removable Component, number of packages is few, and difficulty of processing reduces, and assembly difficulty can also reduce, and whole structural strength is under the conditions of integral structure It also can be more preferable.

Detailed description of the invention

Fig. 1 is that idler wheel master cuts open structural schematic diagram in an embodiment.

Fig. 2 is wheel hub schematic view of the front view in an embodiment.

Fig. 3 is baffle arrangement schematic diagram in an embodiment.

Fig. 4 is the left view structural representation corresponding to Fig. 3.

Fig. 5 is that supporter master cuts open structural schematic diagram in an embodiment.

Fig. 6 is the left view structural representation corresponding to Fig. 5.

In figure: 1. rubber tires, 2. taper bush, 3. support sleeves, 4. nut seats, 5. bearing blocks, 6. bearings, 7. baffles, 8. spiral shells Nail, 9. spring washers, 10. wheel shafts, 11. screws, 12. spring washers, 13. closure plates, 14. screws, 15. spring washers, 16. spring washers, 17. round nuts, 18. end cap, 19. axle envelopes, 20. fixing sleeves, 21. sealing rings, 22. screws, 23. seal closures, 24. ventilation holes.

701. positioning convex platforms, 702. via holes, 703. pilot holes.

Specific embodiment

Rolling cage shoe mainly executes colliery industry standard MT236-2011 " rectangle steel guide rolling cage shoe ", existing rolling at present Wheel cage shoe includes one and is mounted on pedestal on such as cage for rolling cage shoe, is equipped with one by the first pin shaft on pedestal Substantially L-shaped swing arm, pedestal of the swing arm as idler wheel, for installing idler wheel.When idler wheel is impacted, swing arm can be produced It is raw to swing, therefore, it is hinged with a buffer far from one end of pedestal in swing arm, the seat end of buffer is pacified by the second pin shaft On pedestal, buffer is for generating buffering.

Rolling cage shoe is although be intended only as directive wheel, i.e., the idler wheel run along rectangle steel guide, but such as cage operation speed Degree is fast, also requires even running, the presence of buffer also indicates that it will receive biggish impact, therefore, to idler wheel self structure Intensity still suffers from relatively high requirement.

From loss of weight level, each cage usually requires 12 rolling cage shoes of configuration, even small-sized rolling wheel pot Ear, referring to above-mentioned colliery industry standard, such as the rolling cage shoe of model L25, self weight is 111kg, for slightly larger, such as The rolling cage shoe of model LS35, self weight are 259kg, and the self weight of 12 rolling cage shoes just has 1332kg ~ 3108kg, serious shadow The lifting capacity of such as cage is rung.Therefore, carrying out loss of weight to rolling cage shoe is very important.

About the idler wheel of rolling cage shoe, as shown in Figure 1, wheel shaft 10 is used to idler wheel being mounted on such as swing arm, wheel shaft 10, which overhang, is arranged, and left end shown in figure is projecting end, is denoted as second end, and right end is assembly of the wheel shaft in such as swing arm End, is denoted as first end.

In Fig. 1, baffle 7, closure plate 13 and two taper bush 2 determine the rubber tire slot of V-type, for installing rubber tire 1, Baffle 7 should be that removably, in favor of replacing rubber tire 1, and dismantled component is mainly baffle 7 and second end in second end Taper bush 2, dismounting number of packages is few, and safety is relatively high (reduce part and fall probability).

For hollow wheel hub shown in Fig. 2, basic structure includes a bearing block 5, support sleeves 3, a block baffles 7, one piece of closure plate 13 and two taper bush 2, wherein about bearing block, as it can be seen that being a sleeve pipe structure, structure in pipe sleeve in figure At bearing chamber, for installing a pair of bearings 6, bearing as shown in the figure is tapered roller bearing, the centre of bearing chamber have one it is convex Ring, for the interior side positioning between two bearings 6, the bearing 6 positioned at the left side carries out outer positioning (left positioning) by 10 left end collar of wheel shaft, Bearing 6 positioned at the right carries out outer positioning (right positioning) using spring washer 16 and round nut 17.

It is also shown in Fig. 1, the left end of wheel shaft 10 is provided with axial oilhole, and wheel shaft 10 is located at the portion between two bearings 6 and separates There is radial direction oil hole, which is connected to the axial oilhole, lubricant can be injected from the left end of wheel shaft 10, such as lubricate Rouge.It is subject to corresponding, 7 center of baffle is provided with a via hole 702, and the oil injection head for such as oil gun is infused by via hole 702 Oil.

In second end, it will usually a special blanking cover be arranged, to block the second end of bearing chamber, in the utility model In embodiment, special blanking cover is no longer set, but uses the baffle 7 of integration, the second end of baffle 7 and bearing block 5 can be with It is directly connected to, such as baffle 7 is fixed in the screw hole by being distributed on 5 second end end face of bearing block.

In Fig. 1 in the structure with shown in, baffle 7 with bearing block 4 by the way of being indirectly connected with, in Fig. 6 as it can be seen that second End is circumferentially with six nut seats 4, and the centripetal end of nut seat 4 is welded on bearing block 5, and centrifugation end is welded on support sleeve 3.Gear Being provided with to contraposition on plate 7 has equal number of bolt hole with nut seat 4, and pilot hole 703 as shown in Figure 3 can pass through The cooperation of screw 11 shown in Fig. 1 wears spring washer 12 and baffle 7 is fixed on bearing block 5.Screw 11 belongs to detachable joint, Baffle 7 can be removed from second end, the taper bush 2 positioned at second end can remove rubber tire 1.

Note: spring washer is the abbreviation of elastic washer.

As previously mentioned, nut seat 4 between baffle 7 and bearing block 5 and supporter 3 for being indirectly connected with, nut seat 4 is in contrast Monomer is smaller, is conducive to loss of weight, ventilation hole 24 is determined between nut seat 4, if baffle 7 and closure plate 13 are above all without lightening hole When, ventilation hole 24 can be understood as simple lightening hole.Its term name does not constitute the limitation in its structure, is only used for indicating The gap determined between nut seat 4.

Obviously, if should not ventilation hole 24 above-mentioned, a ring body structurc can be provided, be supported on bearing block 5 with Between support sleeve 3, in some embodiments, which may be constructed the flange of bearing block 5, open screw on flange, and structure At a flange arrangement, for the connection of baffle 7, it can also be formed between baffle 7 be directly connected to whereby.

Merely from loss of weight, the part that baffle 7 and ventilation hole 24 align can reduce repeated hole, similarly, on closure plate 13 Repeated hole can also be reduced in identical position.

In turn, referring to figs. 5 and 6, annular space is determined between support sleeve 3 and bearing block 5, which is hollow part Point, it is mainly used for loss of weight.

Be formed by nut seat 4 above-mentioned and bearing block 5 flange and in some embodiments used in ring body Structure is referred to as support member, and the centripetal end of the support member is fixed on bearing block 5, and centrifugation end is used to support support sleeve 3.

As previously mentioned, the preferred nut seat 4 of support member, the nut seat 4 at least there are four, and not more than eight, and It is axis annular array in annular space second end using the axis of bearing block 5, forms more uniform support.

It is preferably round nut seat about nut seat 4, in structure shown in Fig. 6, round nut seat is in satisfaction and support sleeve 3 and under conditions of bearing block 5 engages, can self-assembling formation groove, and then weld formed weld seam and will not occupy additional space.

In addition, round nut seat itself take up space it is also small.

For the first end structure, as it can be seen that the disc of composition in other words to play a supportive role is closure plate 13 in Fig. 1 and 2.Closure plate 13 be an annular version, with baffle 7, also with 5 coaxial line of bearing block.And as baffle 7, i.e., it is used as wheel rim again as disc Plate is constructed, in first end for constructing first end wheel rim.As previously described, because second end is projecting end, then first end is just It is directed towards one end of swing arm, under conditions of idler wheel not being removed from swing arm, rubber tire 1 can not be torn open from first end It unloads.Therefore, in a preferred embodiment, it is high to be welded to connect intensity using being welded to connect between closure plate 13 and bearing block 5.And it adopts With girth welding, the additional interface for needing to seal will not be generated, is easy to keep the sealing of bearing chamber.

But in some embodiments, closure plate 13 can also be using being fixed on axis with by the way of 5 releasable connection of bearing block It holds on seat 5.In the construction shown in fig. 1, in the radial direction of bearing block 5, closure plate 13 and the first end end face of bearing block 4 are only a small amount of Overlapping, in some embodiments, closure plate 13 can have in the radial direction of bearing block 4 and first end end face and be enough to lay bolt hole Overlapping, the mode being connected by screw bolts whereby and is attached between bearing block.

In addition, flange can also be arranged in first end for bearing block 5, to expand first end end face, while meet closure plate 13 and end cap 18 releasable connection form assembly.

It is subject to corresponding, closure plate 13 is used as annular element, and annular distance aperture is greater than 5 bore aperture of bearing block, and is less than or equal to First end outer diameter.

For support sleeve 3, then the wheel rim support section of main composition idler wheel, two taper bush 2 are sleeved on support sleeve 3 On, and form the V-groove installed for rubber tire 1.Support sleeve 3 should also have a relatively high concentricity between bearing block 5, and with Concentricity between bearing block 5 is higher, and the service life of idler wheel will be longer.

In fig. 1 and 2 as it can be seen that the left end end face of support sleeve 3 is engaged with baffle 7, inner face and nut seat 4 are welded, right end It engages with closure plate 13, and is welded between closure plate 13, under conditions of nut seat 4, baffle 7 can be between support sleeve 3 It is connected using screw.

With Chinese patent literature CN207161514U, in the present embodiment, the structure of the V-type part for constructing rubber tire slot Part also uses taper bush 2, and (cooperation based on tolerance range) is gap-matched between taper bush 2 and support sleeve 3.

Two taper bush 2 and first end wheel rim above-mentioned and second end wheel rim determine the rubber tire slot of V-type, in Fig. 1 institute In the structure shown, for installing rubber tire 1.

Chinese patent literature CN207161514U has been put forward for the first time smallclothes rolling cage shoe, and hub portion passes through smallclothes Welding or bolt fastening structure, and the hub body part of traditional rolling cage shoe, generally use cast structure, cast by material It is limited, selection range is narrow, such as can only select cast iron, cast steel, cast aluminium, and founding materials interior tissue is lax, and hardness is big, but toughness Difference, such as cast iron belong to typical hard brittle material.And the impact that rolling cage shoe is subject to would generally be bigger, in use process In, in addition during transportation caused by collide with, the generation of certain structure divisions may be made to burst apart.

Smallclothes produced by smallclothes rolling cage shoe can choose the component of other materials, such as baffle, can use steel plate Blanking forms, these be easy to the component that contact of the external world, can choose that hardness is slightly lower, but the relatively good material of toughness makes, Such as mild steel.

In addition, density is much larger than the density of aluminium, at present in rolling cage shoe field, cast aluminium application range for steel Also relatively wider, when smallclothes rolling cage shoe, certain smallclothes therein can use wrought aluminium, such as closure plate 13.

In the structure shown in Fig. 1 and 2, taper bush 2 still still can use cast member.

About assembly, as shown in Figure 1,2 and 3, the one side of baffle 7 towards bearing block 5 has positioning convex platform 701, shown in Fig. 3 For entity positioning convex platform 701, Fig. 1 and Fig. 2 show ring structure portion, can be with loss of weight.Annular convex platform 701 is a circle on the whole Frustum, substantially identical as second end bearing saddle bore aperture at maximum diameter, the taper of annular convex platform 701 is conducive to positioning convex platform 701 import.

After positioning convex platform 701 is embedded in bearing block bore, be conducive to keep higher concentricity between bearing block 5 and baffle 7.

It is understood that pilot hole 703 as shown in Figure 3, is to have gap between unthreaded hole, with bolt, makes merely Good assembly precision can not be often obtained with pilot hole 703.Generally when being assembled using bolt, generally require to assist it He positions structure, foregoing positioning convex platform 701, can be using the positioning for example with pin hole interference fit when more Pin is positioned.

It is bonded in the end face of first end, closure plate 13 towards second end with first end and forms counterbore in first end, had in Fig. 2 Compare and clearly indicates.

In turn, an end cap 18 with axis hole is provided, axis hole is pierced by from bearing chamber for wheel shaft 10.The method of the end cap 18 Blue disk is identical as counterbore aperture and is caught in counterbore, and wears spring washer 15 by screw 14 and be assemblied in first end, end cap 18 and A gasket seal is clamped between the end face of one end.

It is rotatory sealing between end cap 18 and wheel shaft 10, seal chamber can be set in end cap 18, (is also cried with accommodating oil sealing Axle envelope), the used preferred double-lip sealing ring 12 of oil sealing.

End cap 18 is equipped with the labyrinth seal structure for forming labyrinth seal between wheel shaft 10 far from one end of bearing block 5.

About labyrinth seal structure above-mentioned, it is seen that in the application number of application artificial Shandong Nuo Tai mechanical & electronic equipment corporation, Ltd For " 2018202419121 ", the patent Shen of entitled " rolling cage shoe sealed bearing housing structure, idler wheel and rolling cage shoe " Please, which is described in detail such labyrinth seal structure.

Claims (10)

1. a kind of hollow wheel hub characterized by comprising

Bearing block is sleeve pipe structure, has first end and the second end opposite with first end；

Closure plate, for the annular slab for constructing first end wheel rim, the annular distance aperture of the annular slab is greater than bearing block bore aperture, and Less than or equal to first end outer diameter；Closure plate is fixedly connected with first end, and with bearing block coaxial line；

Baffle, to be connected to second end directly or indirectly with the plectane for constructing second end wheel rim, the plectane and bearing block Coaxial line；

Support sleeve, one end are fixedly connected with closure plate, and the other end is directly or indirectly connect with baffle, and the support sleeve and bearing block are total Axis；And

Taper bush, match there are two, two taper bush inclined-planes relatively cover on support sleeve, and with first end wheel rim above-mentioned and Second end wheel rim determines the rubber tire slot of V-type；

Wherein, the connection of baffle and second end is releasable connection.

2. hollow wheel hub according to claim 1, which is characterized in that the one side of baffle towards bearing block has convex Platform, the positioning convex platform and the cooperation of bearing block bore are to guarantee the concentricity between bearing block and baffle.

3. hollow wheel hub according to claim 1, which is characterized in that determine annular space between support sleeve and bearing block；

The support member for being located at annular space second end is provided, the centripetal end of the support member is fixed on bearing block, and centrifugation end is used In support support sleeve；

Support member is used for being fixedly connected between baffle and bearing block.

4. hollow wheel hub according to claim 3, which is characterized in that the support member is nut seat, and the nut seat is extremely There are four few, and not more than eight, and be axis annular array in annular space second end using bearing block axis；

Correspondingly, screw hole is provided with aligning one by one on baffle with nut seat, to be fixedly connected by screw with nut seat.

5. hollow wheel hub according to claim 4, which is characterized in that the nut seat is round nut seat.

6. hollow wheel hub according to claim 4 or 5, which is characterized in that the centripetal end of nut seat and bearing block welding connect It connects, centrifugation end and support sleeve are welded to connect.

7. hollow wheel hub according to claim 1, which is characterized in that the connection between closure plate and support sleeve and bearing block is weldering It connects in succession.

8. hollow wheel hub according to claim 1 or claim 7, which is characterized in that in first end, closure plate is towards the end face of second end It is bonded with first end and forms counterbore in first end；

An end cap with axis hole is provided, the ring flange of the end cap is identical as counterbore aperture and is caught in counterbore, and fills by screw Fit over first end；

Oil sealing is equipped in end cap；

End cap is equipped with the labyrinth seal structure for forming labyrinth seal with wheel between centers far from one end of bearing block.

9. a kind of idler wheel, which is characterized in that the idler wheel is using any hollow wheel hub of claim 1 ~ 8 as wheel hub.

10. a kind of rolling cage shoe, which is characterized in that the rolling cage shoe has idler wheel described in claim 9.