CN201953929U - Steel band transmission device based on roller compression - Google Patents
Steel band transmission device based on roller compression Download PDFInfo
- Publication number
- CN201953929U CN201953929U CN2011200534759U CN201120053475U CN201953929U CN 201953929 U CN201953929 U CN 201953929U CN 2011200534759 U CN2011200534759 U CN 2011200534759U CN 201120053475 U CN201120053475 U CN 201120053475U CN 201953929 U CN201953929 U CN 201953929U
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- CN
- China
- Prior art keywords
- steel band
- roller
- reel
- inner sleeve
- scroll
- 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 relates to a steel band transmission device based on roller compression, which comprises a telescopic mechanism and a compression device, wherein the telescopic mechanism comprises a steel band, one end of the steel band is rotatablely wound and arranged on a steel band scroll, the steel band scroll is connected with a motor, the steel band scroll and the motor are respectively arranged on a scroll fixing frame, the compression device is a circular arc-shaped structure with an opening and is sheathed outside the steel band scroll in a way coaxial with the steel band scroll, the opening direction of the compression device faces the telescopic direction of the steel band, the compression device comprises an inner sleeve barrel, fixing scrolls are uniformly distributed on the outer side of the inner sleeve barrel, rolling wheel mechanisms are uniformly distributed on the fixing scrolls, each rolling wheel mechanism comprises a rolling wheel shaft and a rolling wheel, and the rolling wheels pass out of the inner sleeve barrel to tightly compress the steel band. The steel band transmission device has the beneficial effects that the higher movement and position control precision is provided, the precision assurance is provided for the experiment verification, the friction force and the occurrence of abrasion are reduced, in addition, the structure is simple, the layout is reasonable, and the cost is saved.
Description
Technical field
The utility model belong to a kind of new, accurate be the device of driving medium with the steel band, especially relate to a kind of tape driving device that compresses based on roller.
Background technique
Domestic and international existing parallel robot is divided into bar supports in parallel mechanism and rope traction and parallel-connection mechanism two big classes by the structural type of kinematic chain.Bar supports in parallel mechanism is good by means of its structural rigidity, bearing capacity is strong, cumulative error is little, the anti-advantages such as model is simple, parts are simple of separating of moving, at home and abroad machine industry dominates the market gradually, and will become main force's equipment of 21 century High Speed Light digital control processing.But the calculating that it exists, and working space is less, can't reach the purpose of driving and direct kinematics on the singular point is problem such as complexity very, uses for engineering and has brought a lot of difficulties.Characteristics such as that rope traction and parallel-connection mechanism has is simple in structure, inertia is little, the translation working space is big and movement velocity is fast.But because rope can only bear pulling force, can not bear pressure, its mechanism must adopt redundant constraint controlling schemes, the difficulty of its forward kinematics solution analysis and Singularity Analysis is bigger, the control system of its mechanism is the nonlinear system with height coupling of constraint traction, must carry out linearization and decoupling zero processing to dynamic model.Rope traction and parallel-connection mechanism also must solve rope in engineering is used long accurate control, the rope of resiliently deformable, rope must keep key issues such as straight line.
The above feature limits of parallel robot this mechanism in other industrial fields, further use, as the hoist in the shipbuilding industry, need accurate location and initiatively adjust container hanging, complex-terrain personnel's the active search and rescue of pose and space telescope etc.These applications all need mechanism that bigger working space and better simply structural type and control mode are arranged.
Summary of the invention
The utility model is in order to solve the existing wideless problem of parallel robot Applicable scope, and a kind of tape driving device that compresses based on roller of expanding the parallel robot application space is provided.
The technical solution of the utility model:
A kind of tape driving device that compresses based on roller, it is characterized in that: comprise extending means and hold down gag, described extending means comprises steel band, the winding that one end of described steel band can rotate is on the steel band reel, described steel band reel is connected with motor, and described steel band reel and motor are installed on the reel fixing frame; Described hold down gag is the convex structure of an opening, being sleeved on outside the steel band reel of itself and steel band reel concentric, its opening direction is towards the flexible direction of described steel band, described hold down gag comprises inner sleeve, the outside of described inner sleeve is evenly equipped with dead block, be evenly equipped with roller mechanism on the described dead block, described roller mechanism comprises roller shaft and roller, and described roller passes inner sleeve and compresses steel band.
The holddown spring of pinch rollers further, is installed on the described dead block.
Further, the two ends of described roller shaft are square structures.
Further, described inner sleeve is installed on the reel fixing frame by the outer fixing sheet of its side.
Further, be connected with first belt pulley on the rotor of described motor, the end that described steel band reel stretches out the reel fixing frame is connected with second belt pulley, connects by belt between described first belt pulley and second belt pulley.
Technical conceive of the present utility model, steel band are wrapped on the steel band reel, and the steel band reel takes place clockwise and the rotation of counterclockwise two kinds of different direction under the drive of motor, thereby realize the motion mode of stretching and contracting of steel band.
Steel band because steel band itself has restoring force, can cause steel band that lax phenomenon is arranged on the steel band reel, thereby influence the fore and aft motion of steel band in transmission process.For steel band is adjacent to mutually always, guarantee the precision of Steel Belt Transmission, must add corresponding hold down gag.
Hold down gag is circular-arc, during installation and the steel band reel keep concentric, opening direction is towards the flexible direction of steel band.The dead block of hold down gag is used for fixing holddown spring and leading role is played in the assembling of holddown spring and roller shaft, and the two ends of roller shaft are square form simultaneously, guarantee not twist in movement process.Roller and roller shaft constitute roller mechanism jointly, and roller mechanism remains with the steel band that curls and contacts and provide certain impacting force under the effect of holddown spring.In order to prevent that steel band from tightening up, need the roller mechanism of some and spring mechanism to be evenly distributed on the corresponding position of dead block.
The useful effect that the utlity model has is:
1. the job requirement that the utility model can more effective setting can not issue the loose phenomenon of cast steel band in some special situations;
2. hold down gag provides the precision of higher motion and positioning control for Steel Belt Transmission mechanism, for experimental verification provides guaranteeing precision;
3. the utility model is rolling friction in the contact of main cooperation position, has reduced the generation of frictional force and wearing and tearing;
4. the utility model is simple in structure, and is rationally distributed, saves cost.
Description of drawings
Fig. 1 is a general structure schematic representation one of the present utility model.
Fig. 2 is a general structure schematic representation two of the present utility model.
Fig. 3 is the structural representation of hold down gag of the present utility model.
Embodiment
With reference to Fig. 1-3, a kind of tape driving device that compresses based on roller, comprise extending means and hold down gag 3, described extending means comprises steel band 4, the winding that one end of described steel band 4 can rotate is on steel band reel 1, described steel band reel 1 is connected with motor 2, and described steel band reel 1 is installed on the reel fixing frame 5 with motor 2; Described hold down gag 3 is convex structures of an opening, being sleeved on outside the steel band reel 1 of itself and steel band reel 1 concentric, its opening direction is towards the flexible direction of described steel band 4, described hold down gag 3 comprises inner sleeve 31, the outside of described inner sleeve 31 is evenly equipped with dead block 33, be evenly equipped with roller mechanism on the described dead block 33, described roller mechanism comprises roller shaft and roller 32, and described roller 32 passes inner sleeve 31 and compresses steel band 4.
The holddown spring of pinch rollers 32 is installed on the described dead block 33.
The two ends of described roller shaft are square structures.
Described inner sleeve 31 is installed on the reel fixing frame 5 by the outer fixing sheet 34 of its side.
Be connected with first belt pulley 7 on the rotor of described motor 2, the end that described steel band reel 1 stretches out reel fixing frame 5 is connected with second belt pulley 6, connects by belt between described first belt pulley 7 and second belt pulley 6.
Technical conceive of the present utility model, steel band 4 are wrapped on the steel band reel 1, and steel band reel 1 takes place clockwise and the rotation of counterclockwise two kinds of different direction under the drive of motor 2, thereby realize the motion mode of stretching and contracting of steel band 4.
Steel band 4 because steel band 4 itself has restoring force, can cause steel band 4 that lax phenomenon is arranged on steel band reel 1, thereby influence the fore and aft motion of steel band 4 in transmission process.For steel band 4 is adjacent to mutually always, guarantee the precision of steel band 4 transmissions, must add corresponding hold down gag 3.
Hold down gag 3 is circular-arc, during installation and steel band reel 1 keep concentric, opening direction is towards the flexible direction of steel band 4.The dead block 33 of hold down gag 3 is used for fixing holddown spring and leading role is played in the assembling of holddown spring and roller shaft, and the two ends of roller shaft are square form simultaneously, guarantee not twist in movement process.Roller 32 constitutes roller mechanism jointly with roller shaft, and roller mechanism remains with the steel band 4 that curls and contacts and provide certain impacting force under the effect of holddown spring.In order to prevent that steel band 4 from tightening up, need the roller mechanism of some and spring mechanism to be evenly distributed on the dead block 33 corresponding positions.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (5)
1. tape driving device that compresses based on roller, it is characterized in that: comprise extending means and hold down gag, described extending means comprises steel band, the winding that one end of described steel band can rotate is on the steel band reel, described steel band reel is connected with motor, and described steel band reel and motor are installed on the reel fixing frame; Described hold down gag is the convex structure of an opening, being sleeved on outside the steel band reel of itself and steel band reel concentric, its opening direction is towards the flexible direction of described steel band, described hold down gag comprises inner sleeve, the outside of described inner sleeve is evenly equipped with dead block, be evenly equipped with roller mechanism on the described dead block, described roller mechanism comprises roller shaft and roller, and described roller passes inner sleeve and compresses steel band.
2. a kind of tape driving device that compresses based on roller according to claim 1 is characterized in that: the holddown spring that pinch rollers is installed on the described dead block.
3. a kind of tape driving device that compresses based on roller according to claim 1 and 2, it is characterized in that: the two ends of described roller shaft are square structures.
4. a kind of tape driving device that compresses based on roller according to claim 3 is characterized in that: described inner sleeve is installed on the reel fixing frame by the outer fixing sheet of its side.
5. a kind of tape driving device that compresses based on roller according to claim 4, it is characterized in that: be connected with first belt pulley on the rotor of described motor, the end that described steel band reel stretches out the reel fixing frame is connected with second belt pulley, connects by belt between described first belt pulley and second belt pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200534759U CN201953929U (en) | 2011-03-03 | 2011-03-03 | Steel band transmission device based on roller compression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200534759U CN201953929U (en) | 2011-03-03 | 2011-03-03 | Steel band transmission device based on roller compression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953929U true CN201953929U (en) | 2011-08-31 |
Family
ID=44498039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200534759U Expired - Fee Related CN201953929U (en) | 2011-03-03 | 2011-03-03 | Steel band transmission device based on roller compression |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953929U (en) |
-
2011
- 2011-03-03 CN CN2011200534759U patent/CN201953929U/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: 20110831 Termination date: 20140303 |