CN2546139Y - Screw supporting apparatus - Google Patents
Screw supporting apparatus Download PDFInfo
- Publication number
- CN2546139Y CN2546139Y CN 02236585 CN02236585U CN2546139Y CN 2546139 Y CN2546139 Y CN 2546139Y CN 02236585 CN02236585 CN 02236585 CN 02236585 U CN02236585 U CN 02236585U CN 2546139 Y CN2546139 Y CN 2546139Y
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- CN
- China
- Prior art keywords
- screw
- supporting seat
- screw shaft
- screw rod
- spring
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- 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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Abstract
Disclosed is a screw supporting device, which at least comprises: a screw shaft connected with the power source; a screw cap screwed with the screw shaft; two clamping seats respectively nested on the screw shafts at the two sides of the screw cap; a connecting rod for connecting the two clamping seats; and a rail bar fixedly arranged on a machine table, and the two ends of the clamping seats are provided with connectors nested on the sliding blocks of the rail bar and connected with the two sliding blocks. The utility model can supply the slender screw with proper supporting force under the condition of reduced costs and low consumption of power of the screw, thus preventing the slender screw from drooping due to deadweight, avoiding the breakage resulted from radial load borne by the screw and torque load borne by the screw when rotation, and extending the service life of the slender screw.
Description
[technical field]
The utility model relates to a kind of screw rod bracing or strutting arrangement, particularly is installed in the screw rod bracing or strutting arrangement on the equipment board with elongate threaded screw.
[background technology]
Ball screw is the capital equipment of present board, and it is installed on board as main actuated element.If the length of board institute product processed is bigger, then board certainly will will strengthen length, and also must extend as the ball screw length of actuated element thereupon.When spiro rod length increasing, and make the axial length of screw rod and diameter ratio arrive a certain degree greatly, promptly can cause screw rod too elongated and sagging because of conducting oneself with dignity, axle head can bear the load of moment of torsion when causing screw rod can bear radial load and screw rod rotation, and the service life of reducing screw rod.Therefore it is bigger to work as board length; and the axial length of ball screw is when relatively extending; sagging for preventing screw rod because of deadweight; usually can install supporting seat additional on screw rod; with the power of providing support make screw rod be difficult for because of deadweight sagging; and avoid screw rod to bear radial load and axle head bears moment of torsion when avoiding screw rod to rotate load, so that unlikely reduction in the service life of screw rod.
In known technology, as Fig. 5, shown in Figure 6, nut (20) operation that desire will be provided with workbench (201) is moved to the place, location, the general practice all is to utilize screw rod (10) to rotate nut (20) generation displacement is advanced, if an overlength screw rod (10) then is provided with two bracing frames (30), and this two bracing frame (30) and mat one connecting rod (40) are linked to each other, make and keep certain spacing distance, and a pulley (301) is installed all on each bracing frame (30) relative position, each end with a cable wire (901) or (902) is fixed on the holder (90), be enclosed within then on the pulley (301) of each bracing frame (30), each other end with cable wire (901) or (902) is fixed on the nut (20) that is provided with workbench (201) more at last; When nut (20) is subjected to screw rod (10) transmission displacement, can drive a bracing frame (30) by cable wire (901) or (902) and advance, and two bracing frames (30) is connected with each other by a connecting rod (40), so it keeps the relative motion of equal proportion; At first blush, above-mentioned overlength screw rod (10) is under the support of each bracing frame (30), as if not reason deadweight and sagging, but importantly, this drives the cable wire (901) of bracing frame (30) or (902) under long-term effect, is easy to produce fracture, so usually just must cable wire of replacing every three to six months, dismounting, both bothered on the assembling operation and bothersome, do not met economic principle in fact.
In addition, commonly using has a kind of supporting seat device in addition, as U.S. Pat 5251501, is whether whether the rotation of utilization ball bearing unit move with the control supporting seat; When screw rod rotates and the nut that drives the installment work platform when advancing, ball bearing in the supporting seat does not rotate with screw rod, so supporting seat is driven toward the nut direction of advance by screw rod and moves, and supporting seat has a connecting rod that supporting seat can equidistantly be moved together to each other, when a supporting seat moves to the screw rod end, another supporting seat then moves to the middle position of screw rod to support the screw rod of overlength, but because this method can be consumed the power of screw rod when mobile supporting seat, and must install the control device whether ball bearing rotates in addition additional, not only bothered on the assembling operation and bothersome but also increase cost, do not met economic principle in fact.
Therefore, the above-mentioned bracing frame of commonly using shows and as seen has serious defective, and the utmost point is waited to improve.
[utility model content]
The purpose of this utility model is to provide a kind of screw rod bracing or strutting arrangement, it can reduce cost and make under the lower situation of the power consumption of screw rod, make elongated screw rod obtain proper supporting power, prevent that elongated screw rod is sagging because of deadweight, axle head bears torque load and ruptures when avoiding screw rod to bear the rotation of radial load and screw rod, thereby can prolong the service life of elongate threaded screw.
Screw rod bracing or strutting arrangement of the present utility model comprises at least:
One connects the screw shaft of power source;
One nut is screwed with above-mentioned screw shaft;
Two supporting seats are to be sheathed on respectively on the screw shaft of above-mentioned nut both sides, with the studdle axle; It is characterized in that:
One connecting rod is to connect two above-mentioned supporting seats, makes two above-mentioned supporting seats with moving; And
Guiding device is to be fixedly arranged on the board, and this guiding device becomes to be slidingly matched with this supporting seat.When promoted by above-mentioned nut, make supporting seat on this guiding device, do linear moving, and make above-mentioned supporting seat the power of providing support give screw shaft.
Described screw rod bracing or strutting arrangement is characterized in that: this guiding device can be the rail bar that is fixedly arranged on the board, and these supporting seat two ends are provided with the connector that is set in the slide block on this rail bar and connects this two slide block.
Described screw rod bracing or strutting arrangement is characterized in that: this supporting seat is provided with needle bearing, is sheathed on the above-mentioned screw shaft with this needle bearing.When making supporting seat promoted by nut, can freely on screw shaft, move, and more not consume the power of screw shaft.
Described screw rod bracing or strutting arrangement is characterized in that: this supporting seat is equiped with spring and bumper towards a side of nut, and this spring and bumper are sheathed on the screw shaft, the impact when promoting supporting seat to reduce nut.
Described screw rod bracing or strutting arrangement is characterized in that: the spring bracing of a support spring is set in spring below, with spring remain on not with the screw shaft position contacting on.
Screw rod bracing or strutting arrangement of the present utility model, can reduce cost and make the consumption of power of screw shaft to reduce, the utility model promotes supporting seat with nut, make supporting seat do linear moving with nut, and not must with cable wire come transmission or by screw shaft guiding start to reduce the cost and the consume of screw shaft power; Wherein two supporting seats are separately positioned on the both sides of nut with the studdle axle, and two supporting seats are connected with moving together by two connecting rods, when nut moves to the two ends of screw shaft, there is a supporting seat can be pushed into the two ends of screw shaft by nut, another supporting seat then can because of with moving so be moved near the point midway of screw shaft, therefore no matter nut moves to any position, and supporting seat is the studdle axle all suitably.Secondly, for making supporting seat can on screw shaft, move to any position arbitrarily, and one needle bearing is installed in supporting seat contact screw shaft part, this needle bearing is fixed on the supporting seat, needle roller in the bearing is done the relative action of rolling and sliding with the screw shaft contact, and supporting seat can be moved on screw shaft in the clear.Moreover, when considering that nut promotion supporting seat moves, can produce unnecessary bump vibrations, so add shock mount and bumper respectively at a side of two supporting seats contact nuts, the impact when promoting supporting seat to reduce nut.Gravity effect because of spring can make spring touch screw shaft again, and the rotation of interference screw shaft, so one spring bracing is set with support spring in each spring below, spring can not contacted with screw shaft because of the influence of gravity, rotate to avoid spring to interfere screw shaft because of the contact screw shaft, so use the spring bracing support spring, with spring remain on not with the screw shaft position contacting on.
In sum, screw rod bracing or strutting arrangement of the present utility model can utilize nut to promote supporting seat and make supporting seat do linear moving with nut, and must mat screw drive supporting seat; Therefore no matter where nut moves to, and supporting seat all can provide screw rod required proper supporting power, and does not consume the power of screw rod.Can prevent that elongate threaded screw is sagging because of deadweight, make the radial load that screw rod bears reduce, and the torque load that axle head bears during the screw rod rotation also can reduce, really can prolong the service life of elongate threaded screw.
Relevant the utility model is to reach technology, means and the effect thereof that above-mentioned purpose adopts, now lift a preferable possible embodiments and cooperate graphic detailed description as after, believe the above-mentioned purpose of the utility model, feature and advantage thereof, when can by one deeply and concrete understanding.
[description of drawings]
Fig. 1 is the vertical view of the utility model screw rod bracing or strutting arrangement.
Fig. 2 is the partial enlarged drawing of Fig. 1 supporting seat.
Fig. 3 A, 3B are the front view and the sectional views of the needle bearing among Fig. 2.
Fig. 4 is the side sectional view of Fig. 1 spring bracing.
Fig. 5 is the vertical view of known screw rod bracing or strutting arrangement.
Fig. 6 is the front view of known screw rod bracing or strutting arrangement.
[specific embodiment]
The utility model provides a kind of screw rod bracing or strutting arrangement, as shown in Figure 1, wherein the nut of ball screw (2) is screwed on last the moving of screw shaft (1) of ball screw, and a supporting seat (3) respectively is set with studdle axle (1) in the both sides of nut (2), two supporting seats (3) are then connected with moving by two connecting rods (4), and the impact of two supporting seats (3) when adding shock mount (5) and bumper (6) and promote supporting seat (3) to reduce nut (2) respectively at the side by nut (2); One spring bracing (7) is set with support spring (5) in each spring (5) below again, spring (5) can not contacted because of gravity is displaced downwardly to screw shaft (1), avoiding spring (5) to interfere screw shaft (1) rotation because of contact screw shaft (1), thus spring bracing (7) spring (5) can be remained on not with screw shaft (1) position contacting on.
Fig. 2 is the partial enlarged drawing of Fig. 1 supporting seat, supporting seat among the figure (3) comprises the supporting seat slide block (31) of being located at two ends, be sheathed on the needle bearing (32) on the screw shaft (1) and connect the connector (33) of two slide blocks (31), wherein supporting seat slide block (31) places on the guiding device and slides, guiding device herein is rail bar (8), and rail bar (8) is fixedly arranged on the board, makes supporting seat (3) can the power of providing support give screw shaft (1) and can be guided to do linear moving; Needle bearing (32) then is placed on the screw shaft (1), supporting seat (3) can be relatively rotated with screw shaft (1) and moves; By connector (33) two supporting seat slide blocks (31) and needle bearing (32) are linked one then, be combined into supporting seat (3), and the support force of screw shaft (1) institute palpus is provided.When nut (2) moves to the two ends of screw shaft (1), there is a supporting seat (3) can be pushed to the two ends of screw shaft (1) by nut (2), another supporting seat (3) then can because of with moving so be moved near the point midway of screw shaft (1), therefore no matter nut (2) moves to any position of screw shaft (1), and supporting seat (3) is studdle axle (1) all suitably.
Fig. 3 then is the part drawing of Fig. 2 needle bearing, by among the figure as can be known needle bearing (32) be that mat fixing hole (323) is fixed on the connector (33) of supporting seat (3), therefore needle bearing (32) is not relatively rotate with supporting seat (3) and move, and but can relatively rotate with screw shaft (1) and move; And the needle roller (322) of needle bearing (32) places needle roller maintainance set (321) to contact with screw shaft (1), and needle bearing (32) can be relatively rotated with screw shaft (1) and move, cause supporting seat (3) to go up at screw shaft (1) in the clear and move, and do not consume the power of screw shaft (1).
Fig. 4 is the side sectional view of Fig. 1 spring bracing, by among the figure as can be known spring bracing (7) be to pull (71) and sliding shoe (72) is combined by support; Its gripper shoe (71) is to place on two sliding shoes (72), and sliding shoe (72) then respectively places on the connecting rod (4), sliding shoe (72) can be gone up at connecting rod (4) slide; Spring (5) is supported by the gripper shoe (71) of spring bracing (7), make spring (5) not reason gravity move down and remain on not with the contacted position of screw shaft (1) on.Make when nut (2) promotes supporting seat (3), first bump bumper (6) and compression spring (5) impulsive force when absorbing bump, spring bracing this moment (7) also moves with spring (5), and make spring (5) can remain at any time not with screw shaft (1) position contacting on.
Claims (5)
1, a kind of screw rod bracing or strutting arrangement comprises at least:
One connects the screw shaft of power source;
One nut is screwed with above-mentioned screw shaft;
Two supporting seats are to be sheathed on respectively on the screw shaft of above-mentioned nut both sides; It is characterized in that:
One connecting rod is to connect two above-mentioned supporting seats; And
Guiding device is to be fixedly arranged on the board, and this guiding device becomes to be slidingly matched with this supporting seat.
2, screw rod bracing or strutting arrangement as claimed in claim 1 is characterized in that: this guiding device is the rail bar that is fixedly arranged on the board, and these supporting seat two ends are provided with the connector that is set in the slide block on this rail bar and connects this two slide block.
3, screw rod bracing or strutting arrangement as claimed in claim 2, it is characterized in that: this supporting seat is provided with needle bearing, is sheathed on the above-mentioned screw shaft with this needle bearing.
4, as claim 2 or 3 described screw rod bracing or strutting arrangements, it is characterized in that: this supporting seat is equiped with spring and bumper towards a side of nut, and this spring and bumper are sheathed on the screw shaft.
5, screw rod bracing or strutting arrangement as claimed in claim 4 is characterized in that: the spring bracing that a support spring is set in the spring below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236585 CN2546139Y (en) | 2002-06-07 | 2002-06-07 | Screw supporting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236585 CN2546139Y (en) | 2002-06-07 | 2002-06-07 | Screw supporting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2546139Y true CN2546139Y (en) | 2003-04-23 |
Family
ID=33710820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02236585 Expired - Lifetime CN2546139Y (en) | 2002-06-07 | 2002-06-07 | Screw supporting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2546139Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391381B (en) * | 2007-09-19 | 2010-07-21 | 张胜富 | High-speed working-up center guide screw quakeproof mechanism |
| CN105058074A (en) * | 2015-07-23 | 2015-11-18 | 洪子涵 | Screw driving supporting device |
| CN106695352A (en) * | 2015-07-23 | 2017-05-24 | 洪子涵 | Carrying platform displacement device |
| CN106889955A (en) * | 2015-12-19 | 2017-06-27 | 天津蓝莓信息技术有限责任公司 | A kind of device and method of automatic replacing clean robot rag |
| CN108296331A (en) * | 2018-02-10 | 2018-07-20 | 清远韶兴新能源科技有限公司 | A kind of CNC tube bending machine being conveniently replaceable bending die |
-
2002
- 2002-06-07 CN CN 02236585 patent/CN2546139Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391381B (en) * | 2007-09-19 | 2010-07-21 | 张胜富 | High-speed working-up center guide screw quakeproof mechanism |
| CN105058074A (en) * | 2015-07-23 | 2015-11-18 | 洪子涵 | Screw driving supporting device |
| CN106695352A (en) * | 2015-07-23 | 2017-05-24 | 洪子涵 | Carrying platform displacement device |
| CN106889955A (en) * | 2015-12-19 | 2017-06-27 | 天津蓝莓信息技术有限责任公司 | A kind of device and method of automatic replacing clean robot rag |
| CN108296331A (en) * | 2018-02-10 | 2018-07-20 | 清远韶兴新能源科技有限公司 | A kind of CNC tube bending machine being conveniently replaceable bending die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120607 Granted publication date: 20030423 |