CN203067693U - Straight line actuating module - Google Patents
Straight line actuating module Download PDFInfo
- Publication number
- CN203067693U CN203067693U CN 201320021726 CN201320021726U CN203067693U CN 203067693 U CN203067693 U CN 203067693U CN 201320021726 CN201320021726 CN 201320021726 CN 201320021726 U CN201320021726 U CN 201320021726U CN 203067693 U CN203067693 U CN 203067693U
- Authority
- CN
- China
- Prior art keywords
- straight line
- end cover
- draw runner
- actuating module
- sliding bar
- 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 - Fee Related
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Abstract
The utility model discloses a straight line actuating module. The straight line actuating module comprises a sealed shell which is composed of a front end cover, a back end cover and shell walls. A straight line guide rail is solidified in the shell, a sliding bar is assembled on the straight line guide rail, a mounting hole is formed at one end of the sliding bar and penetrates through the front end cover, teeth are laid at the other end of the sliding bar, a worm lead screw which is matched with the teeth on the sliding bar is arranged in the shell, the two ends of the worm lead screw are arranged on the front end cover and the back end cover through bearings, an input shaft is arranged on the back end cover, and the input shaft penetrates through the back end cover and is solidified with the end face of the worm lead screw. According to the straight line actuating module, the worm lead screw is matched with the sliding bar, revolving power of a motor can be directly converted into straight line thrust of the actuating module, and therefore a gear reducing mechanism is eliminated, in addition, decrease of the number of parts of the actuating module is achieved, and the effect of improving system reliability is achieved. Compared with similar mechanisms in the prior art, the straight line actuating module has the advantages of being simple in structure, reliable in function, strong in axial carrying capacity.
Description
Technical field
The utility model relates to a kind of actuator, relates in particular to a kind of energy and will rotatablely move and directly become straight-line straight line start module.
Background technique
Electromechanical actuator is the critical component of ACTIVE CONTROL system, and motor drives actuator through driving mechanism, will rotatablely move to change into straight reciprocating motion.With reference to Fig. 4, Chinese utility model patent CN2643532Y discloses a kind of electromechanical actuator, and its driving mechanism is gear drive, and actuator is screw pair and is sleeved on reciprocal start loop bar on the screw pair nut.The actuator of this structure needs special two-stage reduction gears mechanism to realize slowing down to increase turning round, and part is many, complex structure, poor reliability.
Summary of the invention
Must use the deficiency of reduction gears mechanism in order to overcome prior art, the utility model provides a kind of straight line start module, can directly the power of motor be input in the start module by worm screw-threaded shaft, finally output power by gear slider, realize the purpose of straight line start.
A kind of straight line start module, comprise the closed shell that is constituted by front cover, rear end cover and shell wall, be consolidated with linear rail in the described housing, be equipped with draw runner at linear rail, one end of draw runner offers pilot hole and passes front cover, and the other end of draw runner is equipped with teeth; Be provided with the worm screw-threaded shaft that matches with teeth on the draw runner in housing, the two ends of worm screw-threaded shaft all are installed in respectively on front cover and the rear end cover by bearing; Rear end cover is provided with input shaft, and this input shaft runs through rear end cover and fixed with the end face of worm screw-threaded shaft.
Described draw runner stretches out to embed in the pilot hole on the end of front cover steel ball, and the inwall of steel ball and pilot hole is tangent, and described steel ball offers through hole along diametric(al), is processed with the platform perpendicular to through-bore axis on the steel ball at through hole two ends.
Described bearing adopts four-point contact ball.
The utility model cooperates by worm screw-threaded shaft and draw runner, can directly the rotating power of motor be converted to the linear thrust of start module, has saved reduction gears mechanism, reaches the number of spare parts that reduces the start module in addition, improves the effect of system reliability.Existing similar mechanism compares, and this device has simple in structure, reliable in function, advantage such as axial carrying capacity is strong.
Description of drawings
Fig. 1 is overall structure schematic representation of the present utility model;
Fig. 2 is draw runner and linear rail cooperation figure in the utility model;
Fig. 3 is the structural representation of steel ball;
Fig. 4 is the structural representation of " a kind of electromechanical actuator " in the background technique;
Among the figure: 1-draw runner, 101-pilot hole, 102-teeth, 2-front cover, 3-bearing, 4-worm screw-threaded shaft, 5-shell wall, 6-rear end cover, 7-linear rail, 8-steel ball, 801-platform, 802-through hole;
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
Defer to technique scheme, as shown in Figure 1, present embodiment provides a kind of straight line start module, comprise the closed shell that is constituted by front cover 2, rear end cover 6 and shell wall 5, be consolidated with linear rail 7 in the described housing, be equipped with draw runner 1 at linear rail 7, an end of draw runner 1 offers pilot hole 101 and passes front cover 2, and the other end of draw runner 1 is equipped with teeth 102; Be provided with the worm screw-threaded shaft 4 that matches with teeth 102 on the draw runner 1 in housing, the two ends of worm screw-threaded shaft 4 all are installed in respectively on front cover 2 and the rear end cover 6 by bearing 3; Rear end cover 6 is provided with input shaft, and this input shaft runs through rear end cover 6 and fixed with the end face of worm screw-threaded shaft 4.
In the present embodiment, described shell wall 5 adopts the cuboid shell wall 5 of inner hollow, and two sides of this cuboid shell wall 5 are separately installed with front cover 2 and rear end cover 6, and front cover 2 and rear end cover 6 adopt the mode that removably connects with cuboid shell wall 5; Be provided with groove on front cover 2 and the rear end cover 6, be consolidated with bearing 3 in the groove, bearing 3 adopts four-point contact ball.Be consolidated with linear rail 7 on cuboid shell wall 5 inner bottom surface, draw runner 1 is installed on the linear rail 7.
Above-mentioned draw runner 1 matches with linear rail 7, draw runner 1 adopts cuboid draw runner 1 in the present embodiment, one end of this draw runner 1 stretches out front cover 2, this end of draw runner 1 is provided with pilot hole 101, as shown in Figures 2 and 3, the inventor provides a kind of example of pilot hole 101, pilot hole 101 is the ball hole among this embodiment, embed in the ball hole steel ball 8 is arranged, the diameter of steel ball 8 is slightly less than the diameter in ball hole, make steel ball 8 tangent with the inwall of pilot hole 101, steel ball 8 also can freely rotate in the hole when namely guaranteeing in the steel ball 8 embedding pilot holes 101; Described steel ball 8 offers through hole 802 along diametric(al), does the installation of dynamic load for convenience, is processed with the platform 801 perpendicular to through hole 802 axis on the steel ball 8 at through hole 802 two ends.This structure make the start object be subjected to force direction and draw runner 1 can not be strict collinear the time, can make external force along draw runner 1 direction transmission by the effect of spherical output terminal, stuck phenomenon just can not take place in draw runner 1 like this.
An end that does not stretch out front cover 2 at draw runner 1 is equipped with the teeth 102 of some, and teeth 102 quantity can be laid 3 ~ 10 according to the load difference.These teeth 102 mesh with worm screw-threaded shaft 4, have limited the degrees of freedom of draw runner 1 other directions, guarantee that it only moves along worm screw-threaded shaft 4 axial directions.Worm screw-threaded shaft 4 is installed on front cover 2 and the rear end cover 6 by bearing 3, this bearing 3 adopts four-point contact ball, the application of four-point contact ball guarantees the high rotating speed that worm screw-threaded shaft 4 can be the same with motor on the one hand, can bear bigger end thrust again on the other hand.The fixed input shaft of one end of worm screw-threaded shaft 4, this input shaft passes rear end cover 6, and fixed with the output shaft of drive motor.By changing start speed and the thrust of revolving the adjustable straightening line of lift angle start module of spiral chute teeth 102 on the worm screw-threaded shaft 4.
During work, screw rod leading screw and motor coaxle rotation, teeth 102 engagements on screw rod leading screw and the draw runner 1 promote draw runner 1 along the axial motion of worm screw-threaded shaft 4, reach the purpose of straight line start.
Although below in conjunction with the accompanying drawings and embodiments specific embodiments of the present utility model is described in detail; but the utility model is not limited to above-mentioned specific embodiments, and all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Claims (3)
1. straight line start module, comprise the closed shell that is constituted by front cover (2), rear end cover (6) and shell wall (5), it is characterized in that, be consolidated with linear rail (7) in the described housing, be equipped with draw runner (1) at linear rail (7), one end of draw runner (1) offers pilot hole (101) and passes front cover (2), and the other end of draw runner (1) is equipped with teeth (102); Be provided with the worm screw-threaded shaft (4) that matches with last teeth (102) on the draw runner (1) in housing, the two ends of worm screw-threaded shaft (4) all are installed in respectively on front cover (2) and the rear end cover (6) by bearing (3); Rear end cover (6) is provided with input shaft, and this input shaft runs through rear end cover (6) and fixed with the end face of worm screw-threaded shaft (4).
2. straight line start module as claimed in claim 1, it is characterized in that, described draw runner (1) stretches out to embed in the pilot hole (101) on the end of front cover (2) steel ball (8), steel ball (8) is tangent with the inwall of pilot hole (101), described steel ball (8) offers through hole (802) along diametric(al), is processed with the platform (801) perpendicular to through hole (802) axis on the steel ball (8) at through hole (802) two ends.
3. straight line start module as claimed in claim 1 is characterized in that, described bearing (3) adopts four-point contact ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320021726 CN203067693U (en) | 2013-01-15 | 2013-01-15 | Straight line actuating module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320021726 CN203067693U (en) | 2013-01-15 | 2013-01-15 | Straight line actuating module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067693U true CN203067693U (en) | 2013-07-17 |
Family
ID=48766480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320021726 Expired - Fee Related CN203067693U (en) | 2013-01-15 | 2013-01-15 | Straight line actuating module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067693U (en) |
-
2013
- 2013-01-15 CN CN 201320021726 patent/CN203067693U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20190115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |