CN201357342Y - Fracture protecting device of steel wire ropes of main shaft box counterweight of machine tool - Google Patents
Fracture protecting device of steel wire ropes of main shaft box counterweight of machine tool Download PDFInfo
- Publication number
- CN201357342Y CN201357342Y CNU2009201450058U CN200920145005U CN201357342Y CN 201357342 Y CN201357342 Y CN 201357342Y CN U2009201450058 U CNU2009201450058 U CN U2009201450058U CN 200920145005 U CN200920145005 U CN 200920145005U CN 201357342 Y CN201357342 Y CN 201357342Y
- Authority
- CN
- China
- Prior art keywords
- steel wire
- wire rope
- balanced lever
- wire ropes
- counterweight
- 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.)
- Expired - Lifetime
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- Auxiliary Devices For Machine Tools (AREA)
Abstract
The utility model relates to a fracture protecting device of steel wire ropes of a main shaft box counterweight of a machine tool, comprising a hanging seat (7) which is fixed on the main shaft box (8); a groove of the hanging seat (7) is internally provided with a balancing lever (5); the hanging seat (7) and the balancing lever (5) are penetrated with a rotating shaft (4); the balancing lever (5) can rotate around the rotating shaft (4); and a groove of the balancing lever (5) is internally provided with a group of symmetrical pulleys (11) which are fixedly connected with the balancing lever (5) by a shaft (10) and are respectively wound by a steel wire rope a (1) and a steel wire rope b (2). The device solves the problem that the stress of the two steel wire ropes is not inconsistent, prolongs the service life thereof, can alarm to a system in time when the steel wire ropes fracture so as to maintain and replace the steel wire ropes in time and ensure the safe production.
Description
Technical field:
The utility model relates to a kind of lathe headstock counterweight wire cable rupture protective device.
Background technology:
The volume and weight of the main spindle box of numerical control floor milling-boring machine is very big, and under the situation of heavy cut, the load of the gravitational equilibrium system of main spindle box is also more and more heavier simultaneously.The main spindle box gravitational equilibrium system of milling-boring machine; majority adopts the counterweight that weight is suitable with it to come balance; and main spindle box is to use steel wire rope with the majority that is connected between the counterweight; steel wire rope is all more than two; just there is a problem in this: these several length of steel wire rope can't reach consistent; when if they simply are connected with counterweight with main spindle box; the pulling force maximum that always the shortest root is subjected to, long is then stressed very little, even not stressed; the phenomenon of this unbalance stress makes stressed big steel wire rope excessively stretch; fatigue deformation has a strong impact on its service life, if wire cable rupture; with serious crisis production safety, cause the heavy losses of life and property.
The utility model content:
In order to solve the deficiency in the existing background technology, the utility model provides a kind of lathe headstock counterweight wire cable rupture protective device, this device solves two stressed inconsistent problems of steel wire rope, prolong its service life; And when fracture takes place steel wire rope, can so that on-call maintenance is changed, guarantee production safety in time to system alarm.
The technical solution of the utility model is: this lathe headstock counterweight wire cable rupture protective device; comprise flap seat; flap seat is fixed on the main spindle box; in the groove of flap seat balanced lever is installed; be installed with rotating shaft on flap seat and the balanced lever, balanced lever can rotate around the shaft, and the pulley of one group of symmetry is installed in the groove of balanced lever; pulley is fixedlyed connected with balanced lever by axle, has steel wire rope a and steel wire rope b to walk around on the pulley respectively.
The bottom surface of above-mentioned balanced lever is the arc face, and perhaps the middle part, bottom surface is domatic for the both sides at arc face middle part; Steel wire rope a and steel wire rope b upper end ensure that by clamping plate clamping plate are parallel to each other with the steel wire rope on top; The both sides of flap seat are fixed with shell fragment respectively, be fixed with respectively on the position corresponding on the main spindle box with shell fragment photoelectricity near switch a and photoelectricity near switch b.
The utlity model has following beneficial effect: steel wire rope a of the present utility model, b are connected above the main spindle box by balanced lever, rotating shaft, flap seat, when the stressed stretching of steel wire rope, if two inconsistent then balanced levers 5 of length of steel wire rope will 4 produce deflection around the shaft, come the inconsistent of compensating length, making at last that two steel wire ropes are stressed reaches consistent, and such two steel wire ropes are simultaneously stressed, and equal and opposite in direction, avoid the phenomenon of unbalance stress, prolonged its service life.Set up safety guard simultaneously, in case rupture, the optoelectronic switch of often opening is in time reported to the police to machine tool system owing to the deflection of balanced lever disconnects, and carries out maintain and replace work.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is left views of accompanying drawing 1.
1-steel wire rope a among the figure, 2-steel wire rope b, 3-photoelectricity be near switch a, the 4-rotating shaft, and 5-balanced lever, 6-photoelectricity be near switch b, 7-flap seat, 8-main spindle box, 9-clamping plate, 10-axle, 11-pulley, 12-shell fragment.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By accompanying drawing 1 in conjunction with the accompanying drawings shown in 2; this lathe headstock counterweight wire cable rupture protective device comprises flap seat 7; flap seat 7 is fixed on the main spindle box 8; balanced lever 5 is installed in the groove of flap seat 7; be installed with rotating shaft 4 on flap seat 7 and the balanced lever 5; balanced lever 54 can rotate around the shaft; it is identical to adjust two length of steel wire rope by the rotation of balanced lever 5; the pulley 11 of one group of symmetry is installed in the groove of balanced lever 5; two pulleys 11 lay respectively at the two ends of balanced lever 5; pulley 11 is fixedlyed connected with balanced lever 5 by axle 10, has steel wire rope a1 and steel wire rope b2 to walk around on the pulley 11 respectively.
For the rotation of balanced lever 5 is flexible, the bottom surface of balanced lever 5 is the arc face, and perhaps middle part, the bottom surface of balanced lever 5 increases the rotary space of balanced lever for the both sides at arc face middle part are domatic.
Steel wire rope a1 and steel wire rope b2 upper end guarantee the parallel of two steel wire ropes by clamping plate 9.
If because steel wire rope quality problems; perhaps because use long period steel wire rope problem of aging; and cause wherein one (one group) wire cable rupture phenomenon to occur; this structure also has the fracture defencive function; the both sides of flap seat 7 are fixed with shell fragment 12 respectively; be fixed with respectively on the position corresponding on the main spindle box with shell fragment 12 photoelectricity near switch a3 and photoelectricity near switch b6; when steel wire rope a1 ruptures; balanced lever 54 rotations around the shaft; at this moment, the electricity that often opens the light will disconnect with shell fragment 12 near switch a3, signals simultaneously to system alarm; when opposite steel wire rope b2 ruptures; the electricity that often opens the light also can signal to system alarm near switch b6, like this, and timely shutdown inspection; carry out maintain and replace work, guarantee production safety.
Claims (4)
1, a kind of lathe headstock counterweight wire cable rupture protective device; comprise flap seat (7); it is characterized in that: flap seat (7) is fixed on the main spindle box (8); balanced lever (5) is installed in the groove of flap seat (7); be installed with rotating shaft (4) on flap seat (7) and the balanced lever (5); balanced lever (5) (4) around the shaft can rotate; the pulley (11) of one group of symmetry is installed in the groove of balanced lever (5); pulley (11) is fixedlyed connected with balanced lever (5) by axle (10), has steel wire rope a (1) and steel wire rope b (2) to walk around on the pulley (11) respectively.
2, lathe headstock counterweight wire cable rupture protective device according to claim 1, it is characterized in that: the bottom surface of balanced lever (5) is the arc face, perhaps the middle part, bottom surface is domatic for the both sides at arc face middle part.
3, lathe headstock counterweight wire cable rupture protective device according to claim 1 is characterized in that: steel wire rope a (1) and steel wire rope b (2) upper end are by clamping plate (9).
4, lathe headstock counterweight wire cable rupture protective device according to claim 1; it is characterized in that: the both sides of flap seat (7) are fixed with shell fragment (12) respectively, be fixed with respectively on the position corresponding on the main spindle box with shell fragment (12) photoelectricity near switch a (3) and photoelectricity near switch b (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201450058U CN201357342Y (en) | 2009-03-04 | 2009-03-04 | Fracture protecting device of steel wire ropes of main shaft box counterweight of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201450058U CN201357342Y (en) | 2009-03-04 | 2009-03-04 | Fracture protecting device of steel wire ropes of main shaft box counterweight of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357342Y true CN201357342Y (en) | 2009-12-09 |
Family
ID=41423103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201450058U Expired - Lifetime CN201357342Y (en) | 2009-03-04 | 2009-03-04 | Fracture protecting device of steel wire ropes of main shaft box counterweight of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357342Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248441A (en) * | 2011-06-21 | 2011-11-23 | 无锡桥联数控机床有限公司 | Steel wire rope adjusting device of counterweight |
| CN103663048A (en) * | 2013-10-25 | 2014-03-26 | 浙江吉利控股集团有限公司 | Connecting structure of lifting chain and counter weight |
| CN108858140A (en) * | 2018-06-27 | 2018-11-23 | 东北大学 | A kind of underloading material transfer robot |
-
2009
- 2009-03-04 CN CNU2009201450058U patent/CN201357342Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248441A (en) * | 2011-06-21 | 2011-11-23 | 无锡桥联数控机床有限公司 | Steel wire rope adjusting device of counterweight |
| CN103663048A (en) * | 2013-10-25 | 2014-03-26 | 浙江吉利控股集团有限公司 | Connecting structure of lifting chain and counter weight |
| CN103663048B (en) * | 2013-10-25 | 2015-11-04 | 浙江吉利控股集团有限公司 | Lift chain and counterweight connection structure |
| CN108858140A (en) * | 2018-06-27 | 2018-11-23 | 东北大学 | A kind of underloading material transfer robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091209 |
|
| CX01 | Expiry of patent term |