CN102876861B - Quenching tool for crane wheels - Google Patents
Quenching tool for crane wheels Download PDFInfo
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- CN102876861B CN102876861B CN201210346222.XA CN201210346222A CN102876861B CN 102876861 B CN102876861 B CN 102876861B CN 201210346222 A CN201210346222 A CN 201210346222A CN 102876861 B CN102876861 B CN 102876861B
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- cover plate
- water
- wheel
- lower cover
- crane wheel
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Abstract
The invention relates to a quenching tool for crane wheels, comprising an upper cover plate and a lower cover plate which used for clamping corresponding crane wheels. The upper cover plate and the lower cover plate are respectively provided with an upper matching surface and a lower matching surface which are opposite to each other and are in close fit with the outer end surfaces of the upper rims and the lower rims of the crane wheels so as to reduce the speed of cooling the outer end surfaces of the upper rims and the lower rims of the crane wheels by water; a gap for the corresponding water to get through during quenching to directly cool the inner side surfaces of the upper rims and the lower rimes of the crane wheels in a contacting way is left between the outlines of the upper cover plate and the lower cover plate; and the lower cover plate is provided with a hoisting structure for hoisting corresponding hoisting tools. Due to the adoption of the quenching tool for the crane wheels, the speed of cooling the outer end surface of the rims of the crane wheels can be decreased during quenching, and the hardness of the inner side surfaces of the rims of the crane wheels can be guaranteed.
Description
Technical field
The present invention relates to crane wheel quenching frock.
Background technology
Existing crane wheel comprises the tread and the upper and lower wheel rim that prevents crane wheel derailing that is arranged at the axial both sides of tread for coordinating with respective rail roll extrusion, and upper and lower wheel rim has the wheel rim medial surface connected with tread and the annular wheel rim outer face that is distributed in the upper and lower two ends of crane wheel with the opposing setting of corresponding wheel rim medial surface.Other position such as tread, wheel rim medial surface of crane wheel is because contacting with track the requirement of corresponding hardness, and be the hardness requirement that ensures these positions, must carry out quench treatment to crane wheel, but crane wheel is in quenching process, cooling rapidly due to the inside and outside side of wheel rim, easily causes wheel rim cracking.Conventional solution is to wheel rim precooling, but this easily causes again wheel rim medial surface to cause hardness defective because not meeting quenching conditions.
Summary of the invention
While the object of the present invention is to provide a kind of quenching, can reduce the speed of cooling of wheel rim outer face, can ensure again the crane wheel quenching frock of wheel rim medial surface hardness simultaneously.
In order to address the above problem, technical scheme of the present invention is:
A kind of crane wheel quenching frock, comprise for clamping corresponding crane wheel, lower cover, described is upper, lower cover is provided with towards relatively and be respectively used to upper with crane wheel, lower rim outer face closely cooperate with quench time reduce water on, the speed of cooling of lower rim outer face upper, lower mating surface, described is upper, between the outline of lower cover, be provided with for passing through for corresponding water in the time quenching, so that water is directly to upper, the gap of lower rim medial surface contact cooling, on described lower cover, be provided with the hoisting structure for corresponding suspender lifting.
On described upper cover plate, be provided with in the periphery of described upper mating surface towards the upper cooling performance adjusting boss of the ring texture of lower convexity; On described lower cover, be provided with in the periphery of described lower mating surface towards the lower cooling performance adjusting boss of the ring texture of projection.
Described hoisting structure comprises and axially extending along the vertical direction and for being threaded onto the swing pipe of wheel hub axis hole of corresponding crane wheel, the lower end of described swing pipe is fixedly arranged on described lower cover, the upper end of described swing pipe is passed by the top of described upper cover plate, is provided with the swing pipe water hole that is communicated with the endoporus of described swing pipe and the wheel hub axis hole of corresponding crane wheel on the tube wall of described swing pipe.
On described upper cover plate, be provided with handle.
On described upper cover plate, be provided with fovea superior to get out of the way the upper cover plate groove of upper side hub of corresponding crane wheel; On described lower cover, be provided with recessed to get out of the way the lower cover groove of downside wheel hub of corresponding crane wheel.
On described upper cover plate, be provided with for passing through so that the water upper cover plate water hole cooling to the upside spoke of corresponding crane wheel for corresponding water in the time quenching; On described lower cover, be provided with for passing through so that the water lower cover water hole cooling to the downside spoke of corresponding crane wheel for corresponding water in the time quenching.
Beneficial effect of the present invention is: in the time that crane wheel is quenched, because the upper and lower mating surface on upper and lower cover plate closely cooperates with the upper and lower wheel rim outer face of crane wheel respectively, stop directly contact upper and lower wheel rim outer face of water, the speed of cooling of the upper and lower wheel rim outer face of crane wheel is reduced greatly, ensured that upper and lower wheel rim can not ftracture; While is due to the effect in the gap between upper and lower cover plate, water can directly contact with the upper and lower wheel rim medial surface of crane wheel again and is cooling to it, so just can ensure that upper and lower wheel rim medial surface completes martensitic transformation in time, has ensured the hardness of upper and lower wheel rim medial surface.
Brief description of the drawings
Fig. 1 is the use state graph of the embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Crane wheel with the embodiment of quenching frock as shown in Figure 1 and 2: comprise the suspension bracket for corresponding crane wheel 20 being lifted on to quenching bath, suspension bracket comprises upper cover plate 1 and lower cover 17, is provided with handle 2 on upper cover plate 1.Upper and lower cover plate is provided with towards relatively and be respectively used to closely cooperate to reduce upper mating surface 3 and the lower mating surface 9 of the speed of cooling of water to upper and lower wheel rim outer face in the time quenching with the upper and lower wheel rim outer face of crane wheel 20, is provided with towards the upper cooling performance of the ring texture of lower convexity regulates boss 4 on upper cover plate 1 in the periphery of upper mating surface 3; On lower cover 17, be provided with in the periphery of lower mating surface 9 towards the lower cooling performance adjusting boss 8 of the ring texture of projection, can change the cooling performance of upper and lower wheel rim cooling zone by changing the height of upper and lower cooling performance adjusting boss, adapt to the demand of different flange thicknesses.On upper cover plate 1, be provided with for passing through so that the water upper cover plate water hole 16 cooling to the upside spoke of corresponding crane wheel 20 for corresponding water in the time quenching; On described lower cover 17, be provided with for passing through so that the water lower cover water hole cooling to the downside spoke of corresponding crane wheel 20 for corresponding water in the time quenching.On upper cover plate 1, be provided with fovea superior to get out of the way the upper cover plate groove 18 of upper side hub of corresponding crane wheel 20; On lower cover 17, be provided with recessed to get out of the way the lower cover groove 19 of downside wheel hub of corresponding crane wheel 20, it is in order to place the crane wheel that hub size is larger that upper and lower cover plate groove is set, certainly can be by changing groove depth and the groove footpath of upper and lower cover plate groove, to adapt to the crane wheel of different hub thicknesses and hub diameter.Suspension bracket also comprises and axially extending along the vertical direction and for being threaded onto the swing pipe 14 of wheel hub axis hole 10 of corresponding crane wheel 20, the lower end of swing pipe 14 is fixedly arranged on lower cover 17, the upper end of swing pipe 14 is passed for corresponding suspender and is lifted by the top of upper cover plate 1, on the tube wall of swing pipe 14, be provided with and be communicated with the endoporus 15 of swing pipe and the swing pipe water hole 11 of the wheel hub axis hole 10 of corresponding crane wheel, when quenching, water can be directly cooling to the hole wall of wheel hub axis hole 10 by swing pipe water hole 11, to ensure the hardness of wheel hub axis hole 10.Between upper and lower cover plate, be provided with in the time quenching for corresponding water by so that water directly the tread 6 to crane wheel, on the gap 12 of wheel rim medial surface 5 and lower rim medial surface 7 contact cooling.In figure, part 13 represents the through hole passing for swing pipe arranging on upper cover plate, and when quenching, water also can carry out cooling to the upside spoke of crane wheel by through hole 13.
In above-described embodiment, upper and lower cooling performance regulates the Principles of Regulation of boss to be: see accompanying drawing 1, it is relative with flange thickness that upper and lower cooling performance regulates the height (hereinafter to be referred as boss height) of boss, and it is a little that the wheel rim boss height that generally speaking thickness is large also should corresponding increase.For the wheel rim of a certain thickness, increasing boss height is the equal of just to have increased blocking wheel rim.Certainly, upper and lower cooling performance regulate boss and and corresponding wheel rim between space A be also an influence factor, if space is excessive, lose occlusion effect; Space is less, and the occlusion effect that boss height forms wheel rim is just more obvious.Meanwhile, the upper and lower cooling performance of certain altitude regulates boss and corresponding wheel rim, tread to form a semi-open region, and cooling fluid will work therein; When increase boss height is obvious, opening B size and the mobility in this semi-open region (upper and lower wheel rim cooling zone) can correspondingly diminish, corresponding larger to wheel rim, tread is because at the influenced meeting in centre little (this can ensure the quenching of tread and wheel rim inner side after hardness).
When work, use this quenching frock that crane wheel 20 is lifted in quenching bath and is quenched, water is tread 6 and the direct contact cooling of upper and lower wheel rim medial surface to crane wheel 20 by the gap 12 between upper and lower cover plate; Water is cooling to the upper and lower side wheel spoke of crane wheel by upper and lower cover plate water hole; Water is cooling to the wheel hub axis hole 10 of crane wheel 20 by swing pipe water hole 11, thereby ensures the hardness of these positions.And due to the effect of the upper and lower mating surface on upper and lower cover plate, reduced the speed of cooling of the upper and lower wheel rim outer face of water to crane wheel 20, upper and lower wheel rim can not be ftractureed in quenching process.
In other embodiments of the invention: the upper and lower cover plate groove on upper and lower cover plate also can not established; The upper and lower cooling performance being arranged on upper and lower cover plate regulates boss also can not have; Certain upper and lower cover plate can also be all circular rings, now upper and lower mating surface can be made up of the upper surface of the lower surface of upper cover plate and lower cover, the suspension rod that swing pipe can be arranged on lower cover replaces, suspension rod is connected with upper and lower cover plate by tie-beam, between each tie-beam, is provided with water space; Swing pipe can also be replaced along other hoisting structures such as the circumferential uniform suspension ring of lower cover.
Claims (5)
1. a crane wheel quenching frock, it is characterized in that: comprise for clamping corresponding crane wheel, lower cover, described is upper, lower cover is provided with towards relatively and be respectively used to upper with crane wheel, lower rim outer face closely cooperate with quench time reduce water on, the speed of cooling of lower rim outer face upper, lower mating surface, described is upper, between the outline of lower cover, be provided with for passing through for corresponding water in the time quenching, so that water is directly to upper, the gap of lower rim medial surface contact cooling, on described lower cover, be provided with the hoisting structure for corresponding suspender lifting, described hoisting structure comprises axially extension along the vertical direction, and for being threaded onto the swing pipe of wheel hub axis hole of corresponding crane wheel, the lower end of described swing pipe is fixedly arranged on described lower cover, the upper end of described swing pipe is passed by the top of described upper cover plate, on the tube wall of described swing pipe, be provided with the swing pipe water hole that is communicated with the endoporus of described swing pipe and the wheel hub axis hole of corresponding crane wheel.
2. crane wheel according to claim 1 quenching frock, is characterized in that: on described upper cover plate, be provided with in the periphery of described upper mating surface towards the upper cooling performance adjusting boss of the ring texture of lower convexity; On described lower cover, be provided with in the periphery of described lower mating surface towards the lower cooling performance adjusting boss of the ring texture of projection.
3. crane wheel according to claim 1 quenching frock, is characterized in that: on described upper cover plate, be provided with handle.
4. crane wheel according to claim 1 quenching frock, is characterized in that: on described upper cover plate, be provided with fovea superior to get out of the way the upper cover plate groove of upper side hub of corresponding crane wheel; On described lower cover, be provided with recessed to get out of the way the lower cover groove of downside wheel hub of corresponding crane wheel.
5. according to the crane wheel quenching frock described in claim 1～4 any one, it is characterized in that: on described upper cover plate, be provided with for passing through so that the water upper cover plate water hole cooling to the upside spoke of corresponding crane wheel for corresponding water in the time quenching; On described lower cover, be provided with for passing through so that the water lower cover water hole cooling to the downside spoke of corresponding crane wheel for corresponding water in the time quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346222.XA CN102876861B (en) | 2012-09-18 | 2012-09-18 | Quenching tool for crane wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346222.XA CN102876861B (en) | 2012-09-18 | 2012-09-18 | Quenching tool for crane wheels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102876861A CN102876861A (en) | 2013-01-16 |
| CN102876861B true CN102876861B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210346222.XA Active CN102876861B (en) | 2012-09-18 | 2012-09-18 | Quenching tool for crane wheels |
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| CN (1) | CN102876861B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424494Y (en) * | 2009-06-19 | 2010-03-17 | 洛阳Lyc轴承有限公司 | Semi-automatic carburizing and quenching die for heat treatment of bearing ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4492292B2 (en) * | 2004-10-21 | 2010-06-30 | アイシン・エィ・ダブリュ株式会社 | Induction hardening method and hardening jig |
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- 2012-09-18 CN CN201210346222.XA patent/CN102876861B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424494Y (en) * | 2009-06-19 | 2010-03-17 | 洛阳Lyc轴承有限公司 | Semi-automatic carburizing and quenching die for heat treatment of bearing ring |
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| Publication number | Publication date |
|---|---|
| CN102876861A (en) | 2013-01-16 |
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