CN209385500U - Sleeve assembly and flame-proof electric equipment and axle sleeve processing unit (plant) - Google Patents
Sleeve assembly and flame-proof electric equipment and axle sleeve processing unit (plant) Download PDFInfo
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- CN209385500U CN209385500U CN201822271150.2U CN201822271150U CN209385500U CN 209385500 U CN209385500 U CN 209385500U CN 201822271150 U CN201822271150 U CN 201822271150U CN 209385500 U CN209385500 U CN 209385500U
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Abstract
The utility model discloses a kind of sleeve assembly and flame-proof electric equipments and axle sleeve processing unit (plant), sleeve assembly, it include: sleeve body, bushing, sleeve body is fixed on welded unit by welding manner, lining is set in the inner cavity of sleeve body, bushing is the material of expanded by heating and the diminution that is cooled, and bushing is mounted in advance in the inner cavity of sleeve body, and the expansion clearance for reserving when sleeve body and welded unit are weldingly connected for bushing is preset between sleeve body and bushing.By the way that first bushing is mounted in sleeve body in advance, and the expansion clearance reserved between sleeve body and bushing, when sleeve body is weldingly fixed on welded unit, bushing effect of being expanded with heat and contract with cold is fitted closely with sleeve body, it solves in the prior art when axle sleeve needs to be fixed on the biggish components of other volumes by welding, there is the problem that its assembly efficiency of the axle sleeve of bushing is low and yield rate is low.
Description
Technical field
The utility model relates to axle sleeves to produce and process technical field, and in particular to a kind of sleeve assembly and flame-proof electric equipment
With axle sleeve processing unit (plant).
Background technique
It generally requires to fix copper bushing in the inner cavity of axle sleeve, copper bushing is connected with rotation axis cooperation, can be effectively
The wearability and corrosion resistance for improving axle sleeve, improve the use reliability of axle sleeve.But bushing is easy the effect hair that expanded with heat and contract with cold
Change shape, when axle sleeve needs to be fixed on the biggish components of other volumes by welding, axle sleeve and components welding
When will cause the interference connection that formation is interference fitted between bushing and axle sleeve so that the problem of bushing fails.For example,
The flameproof enclosure of flame-proof mine electrical equipment, the inner hole of affiliated axle sleeve should assemble copper bushing.
The installation method of flameproof enclosure in the prior art and affiliated axle sleeve is as follows: as shown in figure 12, flameproof enclosure and institute
Belong to axle sleeve 101, be welded together by arc welding group, forms welded steel component；Copper bush 102 is used into " artificial hammering method " again
It is assemblied among axle sleeve 101；Finally use definite value cutter: hand reamer 103, manually to 102 internal diameter of copper bush and its
Deviation, surface roughness ream machining to required value.In the prior art, when being welded in order to avoid axle sleeve 101 and flameproof enclosure
The copper bush 102 being mounted in axle sleeve 101 is influenced by the high temperature of welding point, and copper bush 102 is sent out by thermal expansion and cold events
Raw deformation, causes that interference fit forms axle sleeve 101 and copper bush 102 becomes clearance fit, thus need first by flameproof enclosure with
Axle sleeve 101 is fixed together installs copper bush 102 again.In above-mentioned technical proposal, the entity object that copper bush 102 is assembled is body
The larger and more heavy weight flameproof enclosure of product needs that above-mentioned installment work could be completed by lifting or mechanical handing, seriously
Influence assembly efficiency.Also, also as assembly difficulty height causes flameproof enclosure low with the assembly yield rate of affiliated axle sleeve the two
The problem of.
Utility model content
Therefore, the utility model is intended to provide a kind of sleeve assembly and flame-proof electric equipment and axle sleeve processing unit (plant),
The technical issues of solution, is in the prior art when axle sleeve needs to be fixed on other volumes biggish zero by welding
When part, there is the problem that its assembly efficiency of the axle sleeve of bushing is low and yield rate is low.For this purpose, the utility model provides a kind of axle sleeve
Component, comprising: sleeve body, bushing,
The sleeve body is fixed on welded unit by welding manner, and the lining is set on the sleeve body
In inner cavity, the bushing is the material of expanded by heating and the diminution that is cooled, and the bushing is mounted in advance in the inner cavity of the sleeve body,
It is preset between the sleeve body and the bushing for being when the sleeve body and the welded unit are weldingly connected
The reserved expansion clearance of the bushing.
The expansion clearance is 0.05mm to 0.1mm.
The bushing is connected by way of flaring press fitting with sleeve body assembly, is located at the sleeve body wherein
The opening of one or both ends, open edge position are equipped with the inclined surface for limiting to the bushing.
The plunger tip taper of its opening of the sleeve body is 45 degree to 60 degree, and the inclined surface depth is 2mm.
The positioning for preventing the bushing from rotating along the sleeve body circumferential direction is provided on the sleeve body
When structure, the sleeve body and the welded unit are weldingly connected, the bushing expanded by heating and when the bushing is cooling
The shrinkage stress effect of generation is lower to be fitted closely with the location structure.
Its circumferential direction that is open of the sleeve body end is equipped with the inclined surface for limiting to the bushing, described
Location structure includes at least one limiting slot being arranged in the inclined surface circumferential direction.
The limiting slot is the groove of the V-shaped structure in cross section.
The depth of the limiting slot is 0.5mm to 1mm.
The location structure includes the bending seamed edge being arranged on the inner cavity of the sleeve body, and the bending seamed edge prevents
The bushing is rotated along the sleeve body circumferential direction.
A kind of flame-proof electric equipment, comprising:
Welded unit, the welded unit are flameproof enclosure；
Above-mentioned sleeve assembly, the sleeve body and the flameproof enclosure are fixedly linked by welding manner.
The production method of sleeve assembly, comprising the following steps:
Step S1 produces the sleeve body and the bushing；
The bushing is assemblied in the sleeve body by step S2, forms sleeve assembly；
The sleeve body is fixed on the welded unit by step S3 by welding manner.
The step S1, the step of producing the sleeve body include: to add at the open-ended edge of the sleeve body
Work is used for the inclined surface limited to the bushing；
The step that the bushing is assemblied in the sleeve body is included: the side by flaring press fitting by the step S2
The bushing is assemblied in the sleeve body by formula, and the gasket end fits with the inclined surface.
The step S1, the step of producing the sleeve body include: processed in the circumferential direction of the inclined surface it is fixed
Bit architecture.
It further include step S2-1 between step S2 and step S3, the step S2-1 includes:
Check whether the gasket end opening has crackle, having crackle, then sleeve assembly is unqualified；
Torsion test is carried out to the bushing in the sleeve body, whether detects the bushing relative to the axle sleeve
Ontology rotates, and the then sleeve assembly that rotates is unqualified；
Hydraulic pressure test is carried out to the sleeve assembly, detects and whether is sent out on the joint face of the sleeve body and the bushing
Raw infiltration phenomenon, infiltration occurs, and then sleeve assembly is unqualified.
A kind of axle sleeve processing unit (plant), for processing sleeve body comprising:
Lower die, sleeve body are fixed in the lower die；
Upper mold, be driven towards the lower die direction close to or far from being provided with pressure head, the pressure head in the lower die
Towards in the lower die moving process, inclined surface and use of the processing for being limited to the bushing on the sleeve body
In the location structure for preventing the bushing from rotating along the sleeve body circumferential direction.
The location structure is the limiting slot for being arranged in its open edge position of the sleeve body, is had on the pressure head
The convex ribs protruded towards its internal chamber wall of the sleeve body.
The technical solution of the utility model has the advantages that
1. sleeve assembly provided by the utility model, the sleeve body is fixed on welded unit by welding manner,
The lining is set in the inner cavity of the sleeve body, and the bushing is the material of expanded by heating and the diminution that is cooled, the lining
Set in the inner cavity of the sleeve body, is preset between the sleeve body and the bushing in the axle sleeve sheet in advance
The expansion clearance reserved when body and the welded unit are weldingly connected for the bushing.By the way that bushing is first mounted in sleeve body in advance
Above-mentioned expansion clearance that is interior, and reserving between sleeve body and bushing, is weldingly fixed on welded unit when by sleeve body
When, bushing effect of being expanded with heat and contract with cold is fitted closely with sleeve body, is solved and is needed first to weld sleeve body in the prior art
It connects on welded unit, then bushing is assemblied among sleeve body by " artificial hammering method ", it is also necessary to is right manually
The internal diameter of copper bush its deviation, surface roughness ream machining to required value, above-mentioned procedure of processing cause to need through lifting or
The problem of person's mechanical handing could complete above-mentioned installment work, seriously affect assembly efficiency.The application not only overcomes existing axis
It covers the high problem of component assembly difficulty, and bushing and sleeve body is made further solid and reliablelyly by expanding with heat and contract with cold for bushing
It is fixed together, improves the assembly efficiency and assembly yield rate of bushing and sleeve body.
2. sleeve assembly provided by the utility model, bushing assembles phase with the sleeve body by way of flaring press fitting
Even, positioned at the opening of the sleeve body wherein one or both ends, open edge position is equipped with for limiting to the bushing
Inclined surface, bushing is assemblied on sleeve body by flaring press-loading apparatus, not only relative to existing " artificial hammering method "
The assembly efficiency of sleeve assembly is effectively improved, and the compression bar for being flared press-loading apparatus can be with one completely into bushing inner cavity
And complete to the final extrusion molding of bushing inner diameter, thus to sleeve surface burnishing-in, make sleeve surface burnishing-in to roughness Ra≤
6.3um improves product quality while promoting assembly efficiency.
3. sleeve assembly provided by the utility model, the plunger tip taper of its opening of sleeve body is 45 degree to 60 degree, described
Inclined surface depth is 2mm, and above-mentioned inclined surface is circular cone surface chamfer, the plasticity stream for effectively containing bushing flaring, pressing and being formed
Synthesis type is moved and matched, ensures the connection dependability between the flaring of bushing and sleeve body.
4. sleeve assembly provided by the utility model, it is provided on the sleeve body for preventing the bushing described in
The location structure of sleeve body circumferential direction rotation.Bushing is connected by way of flaring press fitting with sleeve body assembly
When, bushing is connected with above-mentioned location structure, and location structure can play the position-limiting action to bushing.Moreover, in the axle sleeve sheet
When body and the welded unit are weldingly connected, the bushing expanded by heating and the shrinkage stress generated when the bushing is cooling work
It is fitted closely with lower with the location structure, further improves the connection reliability of sleeve body and bushing.
5. sleeve assembly provided by the utility model, its circumferential direction of the opening of the sleeve body end is equipped with and is used for
To the inclined surface of bushing limit, the location structure includes at least one limit being arranged in the inclined surface circumferential direction
Position slot, when bushing is connected by way of flaring press fitting with sleeve body assembly, in the end edge position insertion of bushing
State limiting slot, the position-limiting action that limiting slot plays bushing.Moreover, the sleeve body and the welded unit are weldingly connected
When, it is completely embedded into limiting slot under the bushing expanded by heating and the shrinkage stress generated when the bushing is cooling effect, into
One step rides over bushing tightly on the inclined surface of sleeve body, can be effectively in flaring press fitting and axis by above-mentioned limiting slot
Bushing is fitted tightly on sleeve body in set ontology welding sequence, prevents the bushing along the axle sleeve sheet by limiting slot
The rotation of body circumferential direction.
6. sleeve assembly provided by the utility model, the limiting slot is the groove of the V-shaped structure in cross section, bushing end
Portion is embedded in the limiting slot of above-mentioned " V " shape structure, and the limiting slot of " V " shape structure can be such that bushing is bonded more with sleeve body
Closely, the bushing is effectively prevented to rotate along the sleeve body circumferential direction.
7. flame-proof electric equipment provided by the utility model, first by bushing by way of flaring press fitting with the axle sleeve sheet
Body assembly is connected, and the end edge position of bushing is embedded in above-mentioned limiting slot, the position-limiting action that limiting slot plays bushing, in axle sleeve
Expansion clearance is reserved between ontology and bushing, and the sleeve assembly being made of bushing and sleeve body is welded on flameproof enclosure,
Bushing effect of being expanded with heat and contract with cold in the welding process is fitted closely with sleeve body, and the end of bushing is inlaid in limiting slot completely
It is interior.Compared with the existing technology it is not necessary that above-mentioned installment work can be completed by lifting or mechanical handing.Moreover, without use
" artificial hammering method " and hand reamer process bushing, effectively improve the assembly efficiency and assembly finished product of bushing and sleeve body
Rate.
8. axle sleeve processing unit (plant) provided by the utility model, comprising: lower die, sleeve body are fixed in the lower die；On
Mould, be driven towards the lower die direction close to or far from being provided with pressure head in the lower die, be arranged on the pressure head useful
In the forming part for processing location structure on the sleeve body.It can be effectively in axle sleeve sheet by above-mentioned axle sleeve processing unit (plant)
Machine-shaping location structure on body
8. axle sleeve processing unit (plant) provided by the utility model, axle sleeve processing unit (plant) can be processed effectively on sleeve body
Form inclined surface for limiting to the bushing and for preventing the bushing from rotating along the sleeve body circumferential direction
Location structure.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the assembling schematic diagram of conversion axle sleeve and bushing provided by the utility model；
Fig. 2 is conversion axle sleeve cross-sectional view provided by the utility model；
Fig. 3 is bushing cross-sectional view provided by the utility model；
Fig. 4 is the assembling schematic diagram of button axle sleeve and bushing provided by the utility model；
Fig. 5 is button axle sleeve cross-sectional view provided by the utility model；
Fig. 6 is the button axle sleeve cross-sectional view provided by the utility model with limiting slot；
Fig. 7 is button axle sleeve partial enlargement diagram shown in fig. 6；
Fig. 8 is the assembling schematic diagram of push-button socket provided by the utility model and bushing；
Fig. 9 is the structural schematic diagram of axle sleeve processing unit (plant) provided by the utility model；
Figure 10 is the assembling schematic diagram of flame-proof electric equipment provided by the utility model its flameproof enclosure and sleeve assembly；
Figure 11 is the structural schematic diagram of axle sleeve processing unit (plant) provided by the utility model；
Figure 12 is the assembling schematic diagram of flameproof enclosure and the axle sleeve with copper bush in the prior art.
Description of symbols:
1- sleeve body；2- bushing；3- welded unit；The inclined surface 4-；5- location structure；6- lower die；7- upper mold；8- pressure
Head；12- bends seamed edge；101- axle sleeve；102- copper bush；103- hand reamer.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
The present embodiment provides a kind of flame-proof electric equipments, as shown in Figure 10, including flameproof enclosure and sleeve assembly, institute
It states sleeve body 1 and the flameproof enclosure is fixedly linked by welding manner.The sleeve body 1 is as shown in Figures 4 to 7
Button axle sleeve comprising: sleeve body 1, bushing 2, the sleeve body 1 are fixed on welded unit 3 by welding manner, institute
It states bushing 2 to be arranged in the inner cavity of the sleeve body 1, the bushing 2 is the copper product of expanded by heating and the diminution that is cooled, described
Bushing 2 in the inner cavity of the sleeve body 1, is preset between the sleeve body 1 and the bushing 2 in institute in advance
State sleeve body 1 and expansion clearance that when welded unit 3 is weldingly connected is reserved for the bushing 2.In view of copper lining
Cover " the elastic recovery amount " after 2 internal diameters squeeze, " the cooling meat amount " after the welding of sleeve assembly flameproof enclosure, the expansion
Gap is 0.1mm.By the way that first bushing is mounted in sleeve body in advance, and the above-mentioned expansion reserved between sleeve body and bushing
Gap, when sleeve body to be weldingly fixed on welded unit, bushing effect of being expanded with heat and contract with cold closely is pasted with sleeve body
It closes, solves and need that first sleeve body 1 is welded on welded unit 3 in the prior art, then bushing 2 is passed through into " artificial hammering
Method " is assemblied among sleeve body 1, it is also necessary to manually to the internal diameter of copper bush 10 its deviation, surface roughness ream
It is machined to required value, above-mentioned procedure of processing causes to need that above-mentioned installment work could be completed by lifting or mechanical handing, sternly
Ghost image rings the problem of assembly efficiency.The application not only overcomes the high problem of existing sleeve assembly assembly difficulty, and passes through lining
Expanding with heat and contract with cold for set 2 makes bushing 2 and sleeve body 1 are further to be fixed together solid and reliablely, improves bushing 2 and axle sleeve sheet
The assembly efficiency and assembly yield rate of body 1.
In the technical scheme, the bushing 2 is connected by way of flaring press fitting with the sleeve body 1 assembly, position
Opening in 1 both ends of sleeve body, the circumferential direction of open edge position are equipped with for limiting to the bushing 2
Bushing 2 is assemblied on sleeve body 1, not only relative to existing " artificial hammering method " by inclined surface 4 by flaring press-loading apparatus
Effectively improve the assembly efficiency of sleeve assembly, and being flared the compression bar of press-loading apparatus can be with completely into 2 inner cavity of bushing
The final extrusion molding to 2 internal diameter of bushing is completed together, to make 2 surface burnishing-in of bushing to roughness 2 surface burnishing-in of bushing
Ra≤6.3um improves product quality while promoting assembly efficiency.The sleeve body 1 its opening plunger tip taper β be
60 degree, 4 depth of inclined surface is 2mm.Its plunger tip taper of the sleeve body 1 is 60 °, and flaring amount is 30%；According to GB/
T16866-2006 " copper and copper alloy seamless pipe material outer dimension and tolerance ", outer diameter tolerance grade: IT9, IT10, surface
Roughness Ra≤1.6um.Copper sheathing port can be flared 60 ° of taper as a result, and can limit copper product bushing 2 its it is circumferentially mobile from
By spending.Above-mentioned inclined surface 4 is circular cone surface chamfer, and bushing 2 forms the joint face that plunger tip taper α is 60 degree by flaring, effectively
Contain the flaring of bushing 2, the Plastic Flow for pressing and being formed and match synthesis type, between the flaring and sleeve body 1 for ensureing bushing 2
Connection dependability.
In the technical scheme, as shown in Figure 6 and Figure 7, it is provided on the sleeve body 1 for preventing the bushing 2
Along the location structure 5 of 1 circumferential direction of sleeve body rotation, including four be arranged in 4 circumferential direction of inclined surface
Limiting slot, the limiting slot are the groove of the V-shaped structure in cross section, and the depth of limiting slot is 1mm.Bushing 2 passes through flaring pressure
When the mode of dress is connected with the sleeve body 1 assembly, the end edge position of bushing 2 is embedded in above-mentioned limiting slot, limiting slot pair
The position-limiting action that bushing 2 plays.Moreover, when the sleeve body 1 and the welded unit 3 are weldingly connected, the bushing 2 by
It is completely embedded into limiting slot under thermal expansion and the shrinkage stress generated when the bushing 2 is cooling effect, further makes bushing 2 tight
Abutting is pressed on the inclined surface 4 of sleeve body 1, can effectively be welded in flaring press fitting and sleeve body 1 by above-mentioned limiting slot
Connecing is fitted tightly over bushing 2 on sleeve body 1, prevents the bushing 2 along the sleeve body 1 week by limiting slot
It is rotated to direction.It is even closer that the limiting slot of " V " shape structure can be such that bushing 2 is bonded with sleeve body 1, effectively prevents institute
Bushing 2 is stated to rotate along 1 circumferential direction of sleeve body.
First bushing 2 is connected by way of flaring press fitting with the sleeve body 1 assembly in the application, the end of bushing 2
Portion's marginal position is embedded in above-mentioned limiting slot, and the position-limiting action that limiting slot plays bushing 2 is reserved between sleeve body and bushing
The sleeve assembly being made of bushing 2 and sleeve body 1 is welded on flameproof enclosure, in the welding process bushing 2 by expansion clearance
Effect of being expanded with heat and contract with cold is fitted closely with sleeve body 1, and the end of bushing 2 is inlaid in limiting slot completely.Relative to existing
Technology is not necessarily to that above-mentioned installment work can be completed by lifting or mechanical handing.Moreover, without " artificial hammering method " is used
Bushing 2 is processed with hand reamer, effectively improves the assembly efficiency and assembly yield rate of bushing 2 and sleeve body 1.
Certainly, the present utility model application is and 4 depth of inclined surface is not done to plunger tip taper of sleeve body 1 its opening
Concrete restriction, in other embodiments, the plunger tip taper of its opening of sleeve body 1 are 45, and 4 depth of inclined surface is 2mm.
Certainly, the present utility model application is not particularly limited the size of expansion clearance, in other embodiments, described swollen
Swollen gap is 0.05mm or 0.08mm.
A kind of axle sleeve processing unit (plant), for processing above-mentioned sleeve body 1, as shown in figure 11 comprising:
Lower die 6, sleeve body 1 are fixed in the lower die 6；
Upper mold 7, be driven towards 6 direction of lower die close to or far from, pressure head 8 is provided in the lower die 6, it is described
Pressure head 8 is towards in 6 moving process of lower die, inclination of the processing for limiting to the bushing 2 on the sleeve body 1
Face 4 and location structure 5 for preventing the bushing 2 from rotating along 1 circumferential direction of sleeve body, the location structure 5
For the limiting slot for being arranged in its open edge position of sleeve body 1, have on the pressure head 8 towards the sleeve body 1
The convex ribs of its internal chamber wall protrusion.
The production method of the sleeve assembly, comprising the following steps:
Step S1 produces the sleeve body 1 and the bushing 2, by above-mentioned axle sleeve processing unit (plant) in the sleeve body
1 open-ended edge processes inclined surface 4 for limiting to the bushing 2 and for preventing the bushing 2 along the axis
Cover the location structure 5 of 1 circumferential direction of ontology rotation；
The bushing 2 is assemblied in the sleeve body 1 by step S2, forms sleeve assembly, and bushing 2 passes through flaring pressure
The mode of dress is assemblied in the sleeve body 1, and 2 end of bushing fits with the inclined surface 4；
Whether step S3 checks that the bushing 2 is open-ended has crackle, and having crackle, then sleeve assembly is unqualified, on the contrary then close
Lattice；
Torsion test is carried out to the bushing 2 in the sleeve body 1, whether detects the bushing 2 relative to described
Sleeve body 1 rotates, and the then sleeve assembly that rotates is unqualified, on the contrary then qualified；
Hydraulic pressure test is carried out to the sleeve assembly, detect on the joint face of the sleeve body 1 and the bushing 2 whether
It has water leakage, infiltration occurs, and then sleeve assembly is unqualified, on the contrary then qualified；
The sleeve body 1 is fixed on the welded unit 3 by step S4 by welding manner.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, the present embodiment provides a kind of flame-proof electric equipments, as shown in Figure 10,
Including flameproof enclosure and sleeve assembly, the sleeve body 1 and the flameproof enclosure are fixedly linked by welding manner.Institute
Stating sleeve body 1 is conversion axle sleeve as shown in Figure 1 to Figure 3, and the location structure 5 includes that the sleeve body 1 is arranged in
Bending seamed edge 12 on inner cavity, the bushing 2 are connected by way of flaring press fitting with the sleeve body 1 assembly, and length is formed
Cube structure, the bending seamed edge 12 prevent the bushing 2 from rotating along 1 circumferential direction of sleeve body.The sleeve body 1
For rectangular parallelepiped structure, above-mentioned bending seamed edge 12 is the bending part of 1 its side wall of sleeve body of rectangular parallelepiped structure.The axle sleeve sheet
When body 1 and the welded unit 3 are weldingly connected, 2 expanded by heating of the bushing and contraction generated when the bushing 2 is cooling is answered
Be bonded and is connected with sleeve body 1 its side wall completely under power effect, the formation of bushing 2 of copper material it is identical as 1 shape of sleeve body and
The cuboid being bonded completely prevents the bushing 2 from rotating along 1 circumferential direction of sleeve body.
Certainly, the present utility model application is not particularly limited the shape of sleeve body 1, in other embodiments, axle sleeve
Ontology 1 can also be triangle or other irregular shapes.
Certainly, the present utility model application is not particularly limited the set-up mode of sleeve body 1, in other embodiments,
Push-button socket as shown in Figure 8 and Figure 9 is provided with multiple cavities for being equipped with copper bushing 2 on push-button socket.
The production method of the sleeve assembly, comprising the following steps:
Step S1 produces the sleeve body 1 and bushing 2 of rectangular parallelepiped structure, by above-mentioned axle sleeve processing unit (plant) in the axle sleeve
The open-ended edge of ontology 1 processes the inclined surface 4 for limiting to the bushing 2；
The bushing 2 is assemblied in the sleeve body 1 by step S2, forms sleeve assembly, and bushing 2 passes through flaring pressure
The mode of dress is assemblied in the sleeve body 1, and 2 end of bushing fits with the inclined surface 4；
Whether step S3 checks that the bushing 2 is open-ended has crackle, and having crackle, then sleeve assembly is unqualified, on the contrary then close
Lattice；
Torsion test is carried out to the bushing 2 in the sleeve body 1, whether detects the bushing 2 relative to described
Sleeve body 1 rotates, and the then sleeve assembly that rotates is unqualified, on the contrary then qualified；
Hydraulic pressure test is carried out to the sleeve assembly, detect on the joint face of the sleeve body 1 and the bushing 2 whether
It has water leakage, infiltration occurs, and then sleeve assembly is unqualified, on the contrary then qualified；
The sleeve body 1 is fixed on the welded unit 3 by step S4 by welding manner.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (12)
1. a kind of sleeve assembly, comprising: sleeve body (1), bushing (2), which is characterized in that
The sleeve body (1) is fixed on welded unit (3) by welding manner, and the bushing (2) is arranged in the axle sleeve
In the inner cavity of ontology (1), the bushing (2) is the material of expanded by heating and the diminution that is cooled, and the bushing (2) is mounted in the axis in advance
In the inner cavity for covering ontology (1), it is preset between the sleeve body (1) and the bushing (2) in the sleeve body (1)
The expansion clearance reserved when being weldingly connected with the welded unit (3) for the bushing (2).
2. sleeve assembly according to claim 1, which is characterized in that the expansion clearance is 0.05mm to 0.1mm.
3. sleeve assembly according to claim 1, which is characterized in that the bushing (2) flaring press fitting by way of with
The sleeve body (1) assembly is connected, and is located at the opening of the sleeve body (1) wherein one or both ends, open edge position
Install the inclined surface (4) for limiting to the bushing (2).
4. sleeve assembly according to claim 3, which is characterized in that the plunger tip taper of its opening of the sleeve body (1)
It is 45 degree to 60 degree, inclined surface (4) depth is 2mm.
5. sleeve assembly according to any one of claim 1 to 4, which is characterized in that be arranged on the sleeve body (1)
There are the location structure (5) for preventing the bushing (2) from rotating along the sleeve body (1) circumferential direction, the sleeve body
(1) when and the welded unit (3) is weldingly connected, bushing (2) expanded by heating is simultaneously generated when the bushing (2) are cooling
Shrinkage stress effect is lower to be fitted closely with the location structure (5).
6. sleeve assembly according to claim 5, which is characterized in that its circumferential direction of the opening of sleeve body (1) end
Direction is equipped with the inclined surface (4) for limiting to the bushing (2), and the location structure (5) includes being arranged in the inclination
At least one limiting slot in face (4) circumferential direction.
7. sleeve assembly according to claim 6, which is characterized in that the limiting slot is the V-shaped structure in cross section
Groove.
8. sleeve assembly according to claim 7, which is characterized in that the depth of the limiting slot is 0.5mm to 1mm.
9. sleeve assembly according to claim 5, which is characterized in that the location structure (5) includes being arranged in the axis
The bending seamed edge (12) on the inner cavity of ontology (1) is covered, the bending seamed edge (12) prevents the bushing (2) along the sleeve body
(1) circumferential direction rotates.
10. a kind of flame-proof electric equipment characterized by comprising
Welded unit (3), the welded unit (3) are flameproof enclosure；
Sleeve assembly described in any claim in claim 1-9, the sleeve body (1) and the flameproof enclosure pass through
Welding manner is fixedly linked.
11. a kind of axle sleeve processing unit (plant), which is characterized in that for processing axis described in any claim in claim 1-9
It covers ontology (1) comprising:
Lower die (6), sleeve body (1) are fixed on the lower die (6)；
Upper mold (7), be driven towards the lower die (6) direction close to or far from, be provided with pressure head (8) on the lower die (6),
The pressure head (8) is towards in the lower die (6) moving process, and processing is for the bushing on the sleeve body (1)
(2) inclined surface (4) limited and the positioning for preventing the bushing (2) from rotating along the sleeve body (1) circumferential direction
Structure (5).
12. axle sleeve processing unit (plant) according to claim 11, which is characterized in that the location structure (5) is is arranged in
It states the limiting slot of sleeve body (1) its open edge position, has on the pressure head (8) towards the sleeve body (1) in it
The convex ribs of cavity wall protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822271150.2U CN209385500U (en) | 2018-12-29 | 2018-12-29 | Sleeve assembly and flame-proof electric equipment and axle sleeve processing unit (plant) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822271150.2U CN209385500U (en) | 2018-12-29 | 2018-12-29 | Sleeve assembly and flame-proof electric equipment and axle sleeve processing unit (plant) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385500U true CN209385500U (en) | 2019-09-13 |
Family
ID=67863075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822271150.2U Active CN209385500U (en) | 2018-12-29 | 2018-12-29 | Sleeve assembly and flame-proof electric equipment and axle sleeve processing unit (plant) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385500U (en) |
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2018
- 2018-12-29 CN CN201822271150.2U patent/CN209385500U/en active Active
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