CN204235093U - The ball-and-socket self-centering parallels device of threaded defencive function - Google Patents
The ball-and-socket self-centering parallels device of threaded defencive function Download PDFInfo
- Publication number
- CN204235093U CN204235093U CN201420715987.0U CN201420715987U CN204235093U CN 204235093 U CN204235093 U CN 204235093U CN 201420715987 U CN201420715987 U CN 201420715987U CN 204235093 U CN204235093 U CN 204235093U
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- Prior art keywords
- parallels
- axle sleeve
- bulb
- face
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The ball-and-socket self-centering parallels device of threaded defencive function belongs to the installation auxiliary device field of the rail vehicle hole-bored axle from end to end with fine thread, this device comprises cylinder axle sleeve and bulb parallels, cylinder axle sleeve is only provided with an end cap in front end, the cylindrical shell of this end cap and cylinder axle sleeve is one-body molded; The outer face of described end cap is provided with ball-and-socket, and the inner face of end cap forms location backstop; The other end of described cylinder axle sleeve is the axle sleeve chamber of not establishing end cap, and the inwall of its axle sleeve cavity rear end is provided with annular steps; The madial wall of described annular steps is provided with fine thread; Described bulb parallels is column structure, and its front end face is provided with bulb; The rear end face of bulb parallels is cylinder end face, and the lateral wall of bulb parallels is provided with handle.Device of the present utility model has ensured that pressure can not produce the bias along hole-bored axle from end to end radial direction in transmittance process, and then realizes the protection to hole-bored axle from end to end nose threads section.
Description
Technical field
The utility model belongs to the installation auxiliary device field of the rail vehicle hole-bored axle from end to end with fine thread, is specifically related to a kind of ball-and-socket self-centering parallels device of threaded defencive function.
Background technology
When the hole-bored axle from end to end of conventional track vehicle is together with the press mounting of car wheel, need with forcing press by press-fiting one end applying pressure of parallels 2 to hole-bored axle from end to end, with pressure vertically by the axis hole on the other end of axletree press-in wheel.
The existing structure press-fiting parallels 2 as shown in Figure 2, press-fit the pedestal 2-3 of parallels 2 end and the head central contact of forcing press, the mandrel 2-1 of its front end inserts hole-bored axle from end to end inner chamber 1-3, and the round table surface 2-2 of pedestal 2-3 front end contacts with hole-bored axle from end to end front end face 1-2 and transmits pressure assembling force.Axial location and the transmission of pressure is realized by said method.
As shown in Figure 1, different from the conventional rails bogie of car, monorail in Chongqing bogie adopts rubber tyre to replace steel wheel, and its axletree uses axle head with the hole-bored axle from end to end 1 of M125X2-6g type fine thread.Different together with the press mounting of car wheel from conventional axletree, the hole-bored axle from end to end 1 with fine thread needs directly to be press fit in the axis hole on bogie frame.
Madial wall with its thread segment of hole-bored axle from end to end 1 1-1 of fine thread is thinner, being therefore only applicable to the pressure born vertically, then easily deforming when bearing pressure radially, cause its tooth form to be destroyed.But, because the old parallels 2 that press-fits does not possess pressure direction adjustment and the defencive function to hole-bored axle from end to end thread segment, at the head center of forcing press and the pedestal 2-3 out of plumb press-fiting parallels 2 end or the round table surface 2-2 that press-fits parallels 2 with time not closely connected with the front end face 1-2 of the hole-bored axle from end to end 1 of fine thread, angle can be there is in the direction of pressure assembling force with the axis direction of the hole-bored axle from end to end 1 with fine thread, and the moment produced along axletree radial direction, this radial moment can cause thread segment inwall stressed, cause its tooth form to be out of shape and make it cannot closely cooperate with shaft end nut in subsequent handling, this can make the hole-bored axle from end to end 1 with fine thread need extra adjusting operation to correct, and then bring the decline of production efficiency, when problem is serious, axletree is even directly scrapped, cause larger economic loss.
Utility model content
Existingly press-fit parallels in order to solve and not possess the automatic regulating function of pressure direction and the defencive function to hole-bored axle from end to end thread segment; when press-fiting the hole-bored axle from end to end with fine thread by it; except transmission axial compressive force; also easily produce the moment along hole-bored axle from end to end radial direction; the thread segment with the hole-bored axle from end to end of fine thread is caused to be destroyed press-fiting in process; cause the technical problem of production cost raising and work efficiency drop, the utility model provides a kind of ball-and-socket self-centering parallels device of threaded defencive function.
The technical scheme that the utility model technical solution problem is taked is as follows:
The ball-and-socket self-centering parallels device of threaded defencive function comprises cylinder axle sleeve and bulb parallels, and cylinder axle sleeve is only provided with an end cap in front end, the cylindrical shell of this end cap and cylinder axle sleeve is one-body molded; The outer face of described end cap is provided with ball-and-socket, and the inner face of end cap forms location backstop; The other end of described cylinder axle sleeve is the axle sleeve chamber of not establishing end cap, and the inwall of its axle sleeve cavity rear end is provided with annular steps; The madial wall of described annular steps is provided with fine thread; Described bulb parallels is column structure, and its front end face is provided with bulb; The rear end face of bulb parallels is cylinder end face, and the lateral wall of bulb parallels is provided with handle.
Described ball-and-socket mates with bulb and is connected, the common spherical pair formed with self-centering function both it.
The beneficial effects of the utility model are: the ball-and-socket self-centering parallels device of this threaded defencive function by cylinder axle sleeve realize with the thread segment of hole-bored axle from end to end be threaded and location backstop end face in hole-bored axle from end to end front end face and cylinder axle sleeve remains and fits tightly; the self-centering correction of press pressure is realized again by spherical pair structure; thus ensured that pressure can not produce the bias along hole-bored axle from end to end radial direction in transmittance process, and then realize the protection to the thread segment of the front end of hole-bored axle from end to end.In addition this ball-and-socket self-centering parallels device also has simple and practical, easy to operate, with low cost, is convenient to advantages such as popularizing.
Accompanying drawing explanation
Fig. 1 is the stereogram of the hole-bored axle from end to end with fine thread;
Fig. 2 is the old schematic diagram press-fiting parallels and hole-bored axle from end to end and press-fit;
Fig. 3 is the explosive view of the ball-and-socket self-centering parallels device of the threaded defencive function of the utility model;
Fig. 4 is the axial section of Fig. 3;
Fig. 5 is the axial sectional block diagram of the utility model cylinder axle sleeve;
Fig. 6 is the application schematic diagram of the ball-and-socket self-centering parallels device of the threaded defencive function of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details.
As shown in Figures 3 to 6, the ball-and-socket self-centering parallels device of threaded defencive function of the present utility model comprises cylinder axle sleeve 3 and bulb parallels 4, and cylinder axle sleeve 3 is only provided with an end cap in front end, the cylindrical shell of this end cap and cylinder axle sleeve 3 is one-body molded.The outer face of end cap is provided with ball-and-socket 3-1, and the inner face of end cap forms location backstop 3-2.The other end of cylinder axle sleeve 3 is the axle sleeve chambeies of not establishing end cap, and the inwall of its axle sleeve cavity rear end is provided with annular steps 3-3.The madial wall of annular steps 3-3 is provided with fine thread, and this fine thread mates mutually with the thread segment 1-1 of the hole-bored axle from end to end 1 with fine thread.
Bulb parallels 4 is column structures, and its front end face is provided with bulb 4-1; The rear end face of bulb parallels 4 is cylinder end face 4-2, and the lateral wall of bulb parallels 4 is provided with handle 4-3.
Ball-and-socket 3-1 mates with bulb 4-1 and is connected, the common spherical pair formed with self-centering function both it.
During the ball-and-socket self-centering parallels device of embody rule threaded defencive function of the present utility model; first the fine thread on annular steps 3-3 madial wall is enclosed within the thread segment 1-1 of the front end of the hole-bored axle from end to end 1 with fine thread; make both it, to form the coaxial filament bumper structure be threaded; then; make it along the axially-movable of screw structure by rotating cylinder axle sleeve 3, until the location backstop 3-2 end face in hole-bored axle from end to end front end face 1-2 and cylinder axle sleeve 3 fits tightly.After this, bulb 4-1 and ball-and-socket 3-1 also fits by the handle 4-3 of hand-held bulb parallels 4, makes to form the spherical pair with self-centering function both it, finally, the head end face of forcing press is slowly pressed close to the cylinder end face 4-2 of bulb parallels 4.
The axial compressive force that forcing press applies is passed to hole-bored axle from end to end front end face 1-2 through spherical pair and location backstop 3-2 in turn from cylinder end face 4-2, in the process, no matter whether the cylinder end face 4-2 of head end face and bulb parallels 4 aligns, and described spherical pair all can realize pressure self-centering globally and guarantee that pressure is the most only applied on hole-bored axle from end to end front end face 1-2 along the axis of cylinder axle sleeve 3.The screw structure that fine thread on annular steps 3-3 madial wall and the thread segment 1-1 of the front end of hole-bored axle from end to end 1 are formed jointly can guarantee that cylinder axle sleeve 3 is coaxially connected all the time with hole-bored axle from end to end 1; and the location backstop 3-2 end face in hole-bored axle from end to end front end face 1-2 and cylinder axle sleeve 3 is remained fit tightly; this has all ensured that pressure can not produce bias radially in transmittance process, thus forms protection to the thread segment 1-1 of the front end of hole-bored axle from end to end 1.
Claims (2)
1. the ball-and-socket self-centering parallels device of threaded defencive function, it is characterized in that: this device comprises cylinder axle sleeve (3) and bulb parallels (4), cylinder axle sleeve (3) is only provided with an end cap in front end, the cylindrical shell of this end cap and cylinder axle sleeve (3) is one-body molded; The outer face of described end cap is provided with ball-and-socket (3-1), and the inner face of end cap forms location backstop (3-2); The other end of described cylinder axle sleeve (3) is the axle sleeve chamber of not establishing end cap, and the inwall of its axle sleeve cavity rear end is provided with annular steps (3-3); The madial wall of described annular steps (3-3) is provided with fine thread; Described bulb parallels (4) is column structure, and its front end face is provided with bulb (4-1); The rear end face of bulb parallels (4) is cylinder end face (4-2), and the lateral wall of bulb parallels (4) is provided with handle (4-3).
2. the ball-and-socket self-centering parallels device of threaded defencive function as claimed in claim 1, is characterized in that: described ball-and-socket (3-1) mates with bulb (4-1) and is connected, the common spherical pair formed with self-centering function both it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420715987.0U CN204235093U (en) | 2014-11-24 | 2014-11-24 | The ball-and-socket self-centering parallels device of threaded defencive function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420715987.0U CN204235093U (en) | 2014-11-24 | 2014-11-24 | The ball-and-socket self-centering parallels device of threaded defencive function |
Publications (1)
Publication Number | Publication Date |
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CN204235093U true CN204235093U (en) | 2015-04-01 |
Family
ID=52764645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420715987.0U Expired - Fee Related CN204235093U (en) | 2014-11-24 | 2014-11-24 | The ball-and-socket self-centering parallels device of threaded defencive function |
Country Status (1)
Country | Link |
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CN (1) | CN204235093U (en) |
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2014
- 2014-11-24 CN CN201420715987.0U patent/CN204235093U/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 130062 Jilin province Changchun city green yam Road No. 435 Patentee after: CRRC CHANGCHUN RAILWAY VEHICLES CO., LTD. Address before: 130062 Jilin province Changchun city green yam Road No. 435 Patentee before: Changchun Track Passenger Train Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20201124 |
|
CF01 | Termination of patent right due to non-payment of annual fee |