CN112427880A - Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve - Google Patents
Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve Download PDFInfo
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- CN112427880A CN112427880A CN202011308757.9A CN202011308757A CN112427880A CN 112427880 A CN112427880 A CN 112427880A CN 202011308757 A CN202011308757 A CN 202011308757A CN 112427880 A CN112427880 A CN 112427880A
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- torsion
- torsion bar
- arm sleeve
- heater
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
Abstract
The invention discloses a method for releasing an anti-side-rolling torsion bar sleeved in a torsion arm sleeve. The invention also discloses a device for pulling out the anti-rolling torsion bar sleeved in the torsion arm sleeve, which is designed according to the method, and comprises a heater and a water injection pipe; the heater is provided with a heating hole, and the heating hole is provided with electric heating components which are circumferentially arranged; when the temperature rises to a set value, the water injection pipe injects water into the water spraying hole at the end part of the torsion bar. The invention has the advantages that: by the method and the device, the torsion arm can be easily separated from the end part of the torsion bar by utilizing temperature difference expansion and contraction, and the torsion bar cannot be damaged.
Description
Technical Field
The invention relates to the assembly and disassembly of an anti-side-rolling torsion bar, in particular to a method and a device for disengaging the anti-side-rolling torsion bar sleeved in a torsion arm sleeve, and belongs to the technical field of rail transit. A method and apparatus for releasing the anti-rolling torsion bar sleeved in the torsion arm sleeve.
Background
In a straight rod type anti-rolling torsion bar on a train, annular arm sleeves of torsion arms at two ends of the straight rod type anti-rolling torsion bar are sleeved at the end part of the torsion bar in an interference fit mode. When disassembly is needed, the mode of milling the torsion arm or breaking the torsion rod shaft is adopted at present, and in any mode, one part is broken and cannot be used continuously.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the traditional method solves the problem that the torsion arm sleeved on the end part of the torsion bar in an interference fit mode is difficult to be separated from the end part of the torsion bar.
Aiming at the problems, the invention provides the following scheme:
a method for releasing the anti-rolling torsion bar in the sleeve of torsion arm features that the sleeve of torsion arm is heated to a predefined temp, and the end of torsion arm is quickly cooled to release it.
Further, the step of heating the arm sleeve is to heat the periphery of the arm sleeve of the torsion arm by using an electric heating device.
Furthermore, the end part of the torsion bar sleeve in the arm sleeve is cooled, a water spraying hole is formed in the end part of the torsion bar in advance along the axial lead according to a set depth, and cooling water is injected into the water spraying hole when the torsion bar is heated and loosened.
Further, the step of injecting cooling water into the water spraying hole is to erect the torsion bar to enable the hole opening of the water spraying hole to be vertically downward, inject the cooling water into the top of the water spraying hole through the hole opening and then turn back, and enable the cooling water to flow back along the inner wall of the water spraying hole and flow out through the hole opening of the water spraying hole.
Furthermore, a downward guide ring is arranged on the end face of the torsion bar along the edge of the water spraying hole opening.
The device for pulling out the anti-rolling torsion bar sleeved in the torsion arm sleeve comprises a heater and a water injection pipe; the heater is provided with a heating hole, and the heating hole is provided with electric heating components which are circumferentially arranged; when the temperature rises to a set value, the water injection pipe injects water into the water spraying hole at the end part of the torsion bar.
The heating hole is provided with a notch for accommodating and passing through the torsion arm on the heater.
Further, the heating hole of heater sets up vertically, the water injection pipe mouth of pipe is upwards vertically established in the heater below.
Further, the releasing device further comprises a seat frame for fixedly mounting the heater and the water injection pipe, the seat frame comprises a horizontally arranged bottom plate and a vertical mounting plate vertically fixed on the bottom plate, the heater is mounted on the vertical mounting plate, and the lower end of the water injection pipe is mounted on the bottom plate.
Furthermore, a separation assisting device is arranged between the heater and the water injection pipe; the release assisting device comprises a first pressure release block and a second pressure release block which are horizontally arranged, wherein one opposite surfaces of the first pressure release block and the second pressure release block are respectively provided with a first arc-shaped groove and a second arc-shaped groove which are in equal radian, one end of the second pressure release block is fixed on a vertical mounting plate, the first pressure release block is mounted on the second pressure release block at a position close to the mounting plate through a bolt, the first pressure release block can rotate around the bolt, and the axial lead of the arc-shaped groove of the first pressure release block can coincide with the axial lead of the arc-shaped groove of the second pressure release block;
the radius of the arc-shaped groove I is equal to that of the sleeve hole of the arm sleeve of the torsion arm;
and the axial lead of the arc-shaped groove II is superposed with the axial lead of the water injection pipe below.
And a pushing handle extending outwards is arranged at one outer end of the pressure release block.
Furthermore, the stripping device also comprises a hoisting device arranged above the heater and used for hoisting the torsion bar, and a lifting hook of the hoisting device can slide right above the heater.
The invention has the advantages that: by the method and the device, the torsion arm can be easily separated from the end part of the torsion bar by utilizing temperature difference expansion and contraction, and the torsion bar cannot be damaged.
Drawings
FIG. 1 is a schematic perspective view of a mechanism provided on a seat frame of a device for releasing a roll-off resistant torsion bar nested in a torsion arm sleeve according to the present invention;
FIG. 2 is a schematic view of the heating operation of the stripping apparatus;
FIG. 3 is a perspective view of the anti-roll torsion bar;
fig. 4 is a partial structural schematic diagram of fig. 3.
In the figure: 1. a seat frame; 11. a base plate; 12. mounting a plate; 2. a heater; 21. heating the hole; 22. a notch; 3. a threshing-assisting device; 31. pressing and releasing the first block; 311. a first arc-shaped groove; 312. pushing the handle; 32. pressing and releasing the second block; 321. an arc-shaped groove II; 4. a water injection pipe; 5. a bolt; 6. a hoisting device; 61. a hook; 7. a torsion bar; 71. a water sprinkling hole; 72. a flow guide ring; 8. a torsion arm; 81. an arm sleeve.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
as shown in fig. 3 and 4, in a method for releasing an anti-roll torsion bar fitted in a torsion arm cover, an arm cover 81 of a torsion arm 8 fitted around an end portion of a torsion bar 7 is heated to a predetermined temperature to thermally expand the arm cover 81 of the torsion arm 8, and then the end portion of the torsion bar 7 fitted in the arm cover 81 is rapidly cooled to cause the arm cover 81 to be released from the end portion of the torsion bar 7 by cold contraction. Because the arm sleeve 81 also conducts heat to the torsion bar 7 when heating, the cooling of the end portion of the torsion bar in the arm sleeve 81 is the contrast between the expansion of the arm sleeve 81 and the contraction of the end portion of the torsion bar, so that a gap is formed between the arm sleeve 81 and the end portion of the torsion bar, and the end portion of the torsion bar can be easily separated from the arm sleeve 81 of the torsion arm 8.
The heating of the arm sleeve 81 is performed by heating the outer periphery of the arm sleeve 81 of the torsion arm 8 by an electric heating device. This heats quickly and allows easy temperature control.
The end part of the torsion bar 7 sleeved in the arm sleeve 81 is cooled, a water spraying hole 71 is formed in the end part of the torsion bar 7 in advance along the axial lead according to a set depth, and cooling water is injected into the water spraying hole 71 when the temperature is raised and loosened.
The step of injecting cooling water into the water spraying hole 71 is to erect the torsion bar, enable the hole opening of the water spraying hole 71 to be vertical and downward, inject the cooling water into the top of the water spraying hole 71 through the hole opening and then turn back, and enable the cooling water to flow back along the inner wall of the water spraying hole 71 and flow out through the hole opening of the water spraying hole 71. Therefore, the heat at the end part of the torsion bar 7 can be quickly and uniformly absorbed from the inner wall of the water spraying hole 71 to the radial direction, and the end part of the torsion bar 7 is quickly contracted.
As shown in fig. 4, the above-mentioned step further includes that a downward deflector ring 72 is arranged on the end surface of the torsion bar along the edge of the opening of the water spraying hole 71. It is to avoid the backflow water from splashing onto the arm cuff 81 at the end of the torsion bar 7.
As shown in fig. 1, 2 and 3, the device for pulling out the anti-rolling torsion bar sleeved in the torsion arm sleeve, which is designed by the method, comprises a heater 2 and a water injection pipe 4; the heater 2 is provided with a heating hole 21, and the heating hole 21 is provided with electric heating components arranged circumferentially; when the device is used, the end part of the torsion bar is positioned in the heating hole 21 of the heater 2 to heat the torsion arm sleeve 81 sleeved on the end part of the torsion bar, and when the temperature rises to a set value, the water injection pipe 4 injects water into the water spraying hole 71 at the end part of the torsion bar. As described above, the arm cover 81 is expanded with heat and the end portion of the torsion bar is contracted with cold, so that a gap is formed between the arm cover 81 and the end portion of the torsion bar, and the end portion of the torsion bar can be easily removed from the arm cover 81 of the torsion arm 8.
The heating aperture 21 is provided with a notch 22 in the heater 2 to receive and pass the torsion arm.
The heating hole 21 of the heater 2 is vertically arranged, and the orifice of the water injection pipe 4 is vertically arranged below the heater 2 upwards. This is provided to allow the torsion bar 7 to stand upright and facilitate the downward slipping of the arm cover 81.
The releasing device further comprises a seat frame 1 for fixedly mounting the heater 2 and the water injection pipe 4, the seat frame 1 comprises a horizontally arranged bottom plate 11 and a vertical mounting plate 12 vertically fixed on the bottom plate 11, the heater 2 is mounted on the vertical mounting plate 12, and the lower end of the water injection pipe 4 is mounted on the bottom plate 11. The heater and the water injection pipe 4 are fixed on the vertical installation plate 12 through bolts.
A separation assisting device 3 is arranged between the heater 2 and the water injection pipe 4; the separation assisting device 3 comprises a first pressure separation block 31 and a second pressure separation block 32 which are horizontally arranged, one opposite surfaces of the first pressure separation block 31 and the second pressure separation block 32 are respectively provided with a first arc-shaped groove 311 and a second arc-shaped groove 321 which have equal radian, one end of the second pressure separation block 32 is fixed on a vertical mounting plate 12, the first pressure separation block 31 is mounted on the second pressure separation block 32 at a position close to the mounting plate 12 through a bolt 5, the first pressure separation block 31 can rotate around the bolt 5, and the axial lead of the arc-shaped groove can coincide with the axial lead of the arc-shaped groove of the second pressure separation block 32; the arrangement is that when the heater heats the arm sleeve 81 to a proper time, the torsion bar is lowered to the position of the arm sleeve 81 below the release assisting device 3, the first arc-shaped groove 311 of the first press-release block 31 surrounds the torsion bar 7 to the second arc-shaped groove 321 of the second press-release block 32, when the axial lead of the first arc-shaped groove 311 is coincident with the axial lead of the second arc-shaped groove 321, the water injection pipe 4 injects water into the hole of the water spraying hole 71 at the lower end of the torsion bar 7 for cooling, the torsion bar 7 is lifted up on line, the lower ends of the first press-release block 31 and the second press-release block 32 face the upper end face of the downward pressing torsion arm sleeve 81, and the torsion arm sleeve 81 can not slip from the end of the torsion bar 7 by itself, so that the torsion arm sleeve 81 slips from the end of the torsion bar under a certain pressure. Thus, the torsion arm sleeve 81 does not need to be heated to a temperature too high, which is beneficial to reducing heating energy consumption.
The radius of the first arc-shaped slot 311 and the second arc-shaped slot 321 is equal to the radius of the trepanning of the torsion arm sleeve 81. This arrangement facilitates positioning of torsion bar 7 when the first and second arc-shaped slots 311 and 321 enclose torsion bar 7, so that water injection pipe 4 below can be aligned with water spraying hole 71 at the lower end of torsion bar 7.
The axial lead of the second arc-shaped groove 321 is superposed with the axial lead of the water injection pipe 4 below. Therefore, water sprayed vertically and upwards from the water injection pipe 4 can be injected into the water spraying hole 71, or the water injection pipe 4 can be directly inserted into the water spraying hole 71 when the torsion bar 7 is lowered.
The outer end of the first press-off block 31 is provided with a pushing handle 312 extending outwards. The arrangement is such that the first pressure release block 31 can be easily pushed by hand.
The stripping device also comprises a hoisting device 6 which is arranged above the heater and used for hoisting a torsion bar 7, and a lifting hook 61 of the hoisting device can slide right above the heater 2. Thus, lifting the torsion bar as described above is to lift the torsion bar 7 by using the hoisting device, or to transfer the torsion bar 7 by using the hoisting device.
The above-described embodiments are intended to illustrate the invention more clearly and should not be construed as limiting the scope of the invention covered thereby, any modification of the equivalent should be considered as falling within the scope of the invention covered thereby.
Claims (10)
1. A method for releasing an anti-rolling torsion bar sleeved in a torsion arm sleeve is characterized in that: the method is characterized in that an arm sleeve (81) of a torsion arm (8) sleeved on the end part of a torsion bar (7) is heated to a set temperature, and the end part of the torsion bar (7) sleeved in the arm sleeve (81) is rapidly cooled to shrink and loosen.
2. The method of claim 1 for stripping an anti-roll torsion bar nested within a torsion arm sleeve, wherein: the heating of the arm sleeve (81) is realized by heating the periphery of the arm sleeve (81) of the torsion arm (8) by using an electric heating device.
3. The method of claim 1 for stripping an anti-roll torsion bar nested within a torsion arm sleeve, wherein: the end part of the torsion bar (7) sleeved in the arm sleeve (81) is cooled, a water spraying hole (71) is formed in the end part of the torsion bar (7) in advance along the axial lead according to a set depth, and cooling water is injected into the water spraying hole (71) when the temperature is raised and loosened.
4. A method of stripping a roll bar encased in a torsion arm sleeve according to claim 3, wherein: and the step of injecting cooling water into the water spraying hole (71) is to erect the torsion bar, enable the hole opening of the water spraying hole (71) to be vertically downward, inject the cooling water into the top of the water spraying hole (71) through the hole opening and then turn back, and enable the cooling water to flow back along the inner wall of the water spraying hole (71) and flow out through the hole opening of the water spraying hole (71).
5. The method of claim 4 wherein said anti-roll torsion bar is nested within said torsion arm sleeve, further comprising: a downward guide ring (72) is arranged on the end face of the torsion bar along the edge of the hole of the water spraying hole (71).
6. An anti-roll torsion bar stripping apparatus for nesting within a torsion arm sleeve, designed according to the method of claim 1, wherein: comprises a heater (2) and a water injection pipe (4); the heater (2) is provided with a heating hole (21), and the heating hole (21) is provided with electric heating components which are arranged circumferentially; when the device is used, the end part of the torsion bar is positioned in the heating hole (21) of the heater (2), the torsion arm sleeve (81) sleeved on the end part of the torsion bar is heated, and when the temperature rises to a set value, the water injection pipe (4) injects water into the water spraying hole (71) at the end part of the torsion bar.
7. The apparatus of claim 6, wherein said torsion arm sleeve is provided with a torsion bar for preventing said torsion bar from rolling out of said torsion arm sleeve, said torsion bar further comprising: the heating hole (21) of the heater (2) is vertically arranged, and the opening of the water injection pipe (4) is vertically arranged below the heater (2).
8. The apparatus of claim 7, wherein said torsion arm sleeve is provided with a torsion bar for preventing said torsion bar from rolling out of said torsion arm sleeve, said torsion bar further comprising: the releasing device further comprises a seat frame (1) for fixedly mounting the heater (2) and the water injection pipe (4), the seat frame (1) comprises a horizontally arranged bottom plate (11) and a vertical mounting plate (12) vertically fixed on the bottom plate (11), the heater (2) is mounted on the vertical mounting plate (12), and the lower end of the water injection pipe (4) is mounted on the bottom plate (11).
9. The apparatus of claim 8, wherein said torsion arm sleeve is provided with an anti-roll torsion bar, said torsion bar being adapted to be inserted into said torsion arm sleeve, said torsion arm sleeve being adapted to be rotated in a direction opposite to said direction of rotation of said torsion arm sleeve, said torsion bar being adapted to be rotated in said direction of rotation of said torsion: a separation assisting device (3) is arranged between the heater (2) and the water injection pipe (4); the release assisting device (3) comprises a first pressure release block (31) and a second pressure release block (32) which are horizontally arranged, one surfaces, opposite to the first pressure release block (31) and the second pressure release block (32), of the first pressure release block (311) and the second pressure release block (321) are respectively provided with an arc-shaped groove (311) and an arc-shaped groove (321) which are in equal radian, one end of the second pressure release block (32) is fixed on a vertical mounting plate (12), the first pressure release block (31) is mounted on the second pressure release block (32) through a bolt (5) at a position close to the mounting plate (12), the first pressure release block (31) can rotate around the bolt (5), and the axial lead of the arc-shaped groove can coincide with the axial lead of the arc-shaped groove of the second pressure release block (;
the radius of the arc-shaped groove I (311) is equal to the radius of a sleeve hole of the torsion arm sleeve (81);
the axial lead of the second arc-shaped groove (321) is superposed with the axial lead of the water injection pipe (4) below.
10. The apparatus of claim 9, wherein said torsion arm sleeve is provided with an anti-roll torsion bar, said torsion bar being adapted to be inserted into said torsion arm sleeve, said torsion arm sleeve being adapted to be rotated in a direction opposite to said direction of rotation of said torsion arm sleeve, said torsion bar being adapted to be rotated in said direction of rotation of said torsion: the stripping device further comprises a hoisting device (6) arranged above the heater and used for hanging the torsion bar (7), and a lifting hook (61) of the hoisting device can slide right above the heater (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011308757.9A CN112427880A (en) | 2020-11-20 | 2020-11-20 | Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011308757.9A CN112427880A (en) | 2020-11-20 | 2020-11-20 | Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN112427880A true CN112427880A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011308757.9A Pending CN112427880A (en) | 2020-11-20 | 2020-11-20 | Method and device for disengaging anti-side-rolling torsion bar sleeved in torsion arm sleeve |
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| CN (1) | CN112427880A (en) |
Citations (5)
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|---|---|---|---|---|
| CN101284354A (en) * | 2007-12-25 | 2008-10-15 | 中国第一重型机械集团公司 | Large-sized bearing heat disassembling device |
| CN101462221A (en) * | 2007-12-21 | 2009-06-24 | 广东明阳风电技术有限公司 | Method for disassembling self-aligning roller bearing matched with long shaft |
| US20120311849A1 (en) * | 2011-06-10 | 2012-12-13 | Pan-Jit International Inc. | Manufacturing method of a heat conductive device for a light-emitting diode |
| CN102848132A (en) * | 2012-09-28 | 2013-01-02 | 太原重工股份有限公司 | Device for assembling outer jacket and inner lining of extrusion container |
| CN103878532A (en) * | 2014-04-10 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Disassembling device of large interference length fit structure |
-
2020
- 2020-11-20 CN CN202011308757.9A patent/CN112427880A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462221A (en) * | 2007-12-21 | 2009-06-24 | 广东明阳风电技术有限公司 | Method for disassembling self-aligning roller bearing matched with long shaft |
| CN101284354A (en) * | 2007-12-25 | 2008-10-15 | 中国第一重型机械集团公司 | Large-sized bearing heat disassembling device |
| US20120311849A1 (en) * | 2011-06-10 | 2012-12-13 | Pan-Jit International Inc. | Manufacturing method of a heat conductive device for a light-emitting diode |
| CN102848132A (en) * | 2012-09-28 | 2013-01-02 | 太原重工股份有限公司 | Device for assembling outer jacket and inner lining of extrusion container |
| CN103878532A (en) * | 2014-04-10 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Disassembling device of large interference length fit structure |
Non-Patent Citations (1)
| Title |
|---|
| 朱云: "《普通高等教育十二五规划教材 冶金设备 第2版》", 30 September 2013 * |
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Application publication date: 20210302 |