CN213054347U - Swinging mechanism for direct-drive conversion of linear motion of eccentric wheel - Google Patents
Swinging mechanism for direct-drive conversion of linear motion of eccentric wheel Download PDFInfo
- Publication number
- CN213054347U CN213054347U CN202022106383.4U CN202022106383U CN213054347U CN 213054347 U CN213054347 U CN 213054347U CN 202022106383 U CN202022106383 U CN 202022106383U CN 213054347 U CN213054347 U CN 213054347U
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- China
- Prior art keywords
- eccentric
- shaft sleeve
- eccentric shaft
- swinging
- linear motion
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Abstract
The utility model discloses an eccentric wheel directly drives conversion linear motion's swing mechanism, it includes that a loading board, one slide to set up the movable plate that sways on the loading board and one set up the motor on the loading board. An eccentric shaft sleeve is sleeved on an output shaft of the motor, a swinging movable plate is inserted into the upper end of the eccentric shaft sleeve and provided with a movable area for the eccentric shaft sleeve to rotate, the inner periphery of the movable area is provided with an impact surface and an avoiding surface, and a certain interval is formed between the avoiding surface and the outer peripheral side wall of the eccentric shaft sleeve. When the motor drives the eccentric shaft sleeve to rotate, the outer peripheral wall of the eccentric shaft sleeve is in contact collision with the impact surface of the movable area, and the swinging movable plate is driven to move along the sliding direction of the swinging movable plate. The swinging mechanism is simple and compact in structure, can be effectively suitable for being used in a narrow space, and further meets the requirement of a user on applying the swinging mechanism on a small and medium-sized grinding and brushing machine.
Description
Technical Field
The utility model relates to a technical field, in particular to eccentric wheel directly drives conversion linear motion's swing mechanism.
Background
At present, the swinging mechanism of the grinding and brushing machine on the market mostly adopts the matching of an eccentric shaft and a connecting rod, the mechanism is simple in structure, but the eccentric shaft and the connecting rod need a certain movable space in the transmission matching process so as to ensure that the eccentric shaft and the connecting rod cannot collide with other mechanisms of the grinding and brushing machine, and a movable connecting structure also needs to be arranged between the eccentric shaft and the connecting rod, so that the swinging mechanism is difficult to be applied to some small and medium-sized grinding and brushing machines.
SUMMERY OF THE UTILITY MODEL
The problem to prior art exists, the utility model aims at providing an eccentric wheel directly drives conversion linear motion's swing mechanism, its compact structure can effectively be applicable to and use in the narrow and small space, and then satisfies the user and uses swing mechanism on middle-size and small-size brush grinding machine.
In order to achieve the above object, the utility model provides an eccentric wheel directly drives conversion linear motion's swing mechanism, including a loading board, one slide set up in swing movable plate and one on the loading board set up in motor on the loading board.
An eccentric shaft sleeve is sleeved on an output shaft of the motor, the upper end of the eccentric shaft sleeve is inserted into the swinging movable plate, the swinging movable plate is provided with a movable area for the eccentric shaft sleeve to rotate, the inner periphery of the movable area is provided with an impact surface and an avoiding surface, and a certain interval is formed between the avoiding surface and the peripheral side wall of the eccentric shaft sleeve.
When the motor drives the eccentric shaft sleeve to rotate, the peripheral wall of the eccentric shaft sleeve collides with the collision surface of the movable area to drive the swinging movable plate to move along the sliding direction of the swinging movable plate.
Optionally, a rotating sleeve coaxially and slidably engaged with the eccentric sleeve is sleeved on the outer periphery of the eccentric sleeve.
Optionally, at least one bearing is sleeved on the outer periphery of the eccentric shaft sleeve, and the rotating sleeve is sleeved on the outer periphery of the bearing.
Optionally, one end of the eccentric sleeve has a flange, and one end face of the bearing abuts against the flange.
The inner periphery of one end, far away from the flange edge, of the rotating sleeve is provided with a clamping groove, an elastic check ring is arranged in the clamping groove, and the other end face of the bearing is abutted to the check ring.
Optionally, a sliding rail assembly is arranged on the bearing plate, a rail portion of the sliding rail assembly is fixed on the bearing plate, and the swinging moving plate is fixed on a sliding block portion of the sliding rail assembly.
Optionally, the swing moving plate has an outward extending portion, the motor is fixed below the outward extending portion, the active region is disposed on the outward extending portion, and the eccentric sleeve is inserted into the active region.
Optionally, the active area is an ellipse-like recess.
Optionally, the active area is an ellipse-like through hole.
Optionally, a cemented carbide piece is arranged in the impact surface, and part of the surface of the cemented carbide piece is exposed outside.
Optionally, a supporting seat is arranged on the swinging moving plate, and a main shaft of a grinding and brushing assembly of the grinding and brushing machine is inserted into the supporting seat along the sliding direction of the swinging moving plate.
The utility model arranges an extension part opposite to the output shaft of the motor on the swinging movable plate, and an eccentric shaft sleeve extending to the extension part is sleeved on the output shaft of the motor; the outer extension part is provided with a movable area for the eccentric shaft sleeve to move, the inner periphery of the movable area is provided with a collision surface and an avoidance surface, and a certain interval is formed between the avoidance surface and the outer peripheral side wall of the eccentric shaft sleeve, so that the motor drives the eccentric shaft sleeve to rotate and only contacts with the collision surface of the movable area but not with the avoidance surface. Therefore, when the motor drives the eccentric shaft sleeve to rotate to be in contact with the impact surface of the active area, the eccentric shaft sleeve drives the swinging moving plate to move along the sliding direction of the swinging moving plate, the swinging moving plate reciprocates in the sliding direction of the swinging moving plate, and the grinding brush assembly connected with the swinging moving plate is driven to swing back and forth. When the motor drives the eccentric shaft sleeve to rotate to be opposite to the avoiding surface of the active area, the eccentric shaft sleeve can be avoided, and the eccentric shaft sleeve and the swinging moving plate are prevented from being impacted in the direction perpendicular to the sliding direction of the swinging moving plate.
By adopting the scheme, the eccentric shaft sleeve is arranged on the output shaft of the motor, and the swing moving plate is provided with the moving area for limiting the moving area of the eccentric shaft sleeve, so that the eccentric shaft sleeve can only move in the moving area. Therefore, the swinging movable plate is driven to reciprocate in the sliding direction of the swinging movable plate through the impact action between the eccentric shaft sleeve and the inner peripheral wall of the movable area, and the grinding brush assembly connected with the swinging movable plate is driven to swing back and forth through the swinging movable plate.
Therefore, a connecting rod is not required to be arranged, the swing mechanism can be more compact, stable and simple, and meanwhile, the transmission steps can be reduced, and the transmission efficiency can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a swing mechanism for direct-drive linear motion conversion of an eccentric wheel according to the present invention;
FIG. 2 is a schematic view of a combination of a swing mechanism for direct-drive linear motion conversion of an eccentric wheel and a scrubbing brush assembly according to the present invention;
fig. 3 is an exploded schematic view of an embodiment of a swing mechanism for direct-drive linear motion conversion of an eccentric wheel according to the present invention;
fig. 4 is the swing principle diagram of the swing mechanism for direct-drive conversion of linear motion of the eccentric wheel of the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1 and 3, an embodiment of the present invention provides a swinging mechanism for direct-drive conversion of linear motion of an eccentric wheel, which includes a bearing plate 1, a swinging moving plate 2 slidably disposed on the bearing plate 1, and a motor 4, wherein the motor 4 is fixed below the bearing plate 1 through a Z-shaped bracket 41.
An eccentric shaft sleeve 3 is sleeved on an output shaft of the motor 4, the upper end of the eccentric shaft sleeve 3 is inserted into the swinging moving plate 2, the swinging moving plate 2 is provided with a moving area 2a for the eccentric shaft sleeve 3 to rotate, the inner periphery of the moving area 2a is provided with an impact surface and an avoiding surface, and a certain interval is arranged between the avoiding surface and the outer peripheral side wall of the eccentric shaft sleeve.
When the motor 4 drives the eccentric sleeve 3 to rotate, the outer peripheral wall of the eccentric sleeve 3 is contacted and collided with the impact surface of the movable area 2a, so that the swinging moving plate 2 is driven to move along the sliding direction of the swinging moving plate 2.
In the present embodiment, the collision surface includes a left collision surface and a right collision surface which are oppositely arranged, the avoidance surface includes a front avoidance surface and a rear avoidance surface which are oppositely arranged, and the left collision surface, the front avoidance surface, the right collision surface and the rear avoidance surface are sequentially spliced end to enclose the active area 2 a.
As shown in fig. 4, when the eccentric sleeve 3 rotates clockwise from the left impact surface to the right impact surface, the outer wall of the eccentric sleeve 3 is gradually pressed toward the right impact surface, so as to drive the swing moving plate 2 to slide rightward. When the eccentric shaft sleeve 3 and a part of the farthest side of the axis of the output shaft 4a of the motor 4 rotate to be contacted with the center line of the right impact surface, the eccentric shaft sleeve 3 is continuously driven, the outer wall of the eccentric shaft sleeve 3 is gradually extruded towards the left impact surface, the swinging moving plate 2 is driven to slide towards the left side, and the operation is sequentially circulated to drive the swinging moving plate 2 to slide left and right.
As shown in fig. 2, in a specific application, a supporting seat 22 is provided on the swing moving plate 2, and a main shaft 51 of the brushing assembly 5 of the brushing machine is inserted into the supporting seat 22 along the sliding direction of the swing moving plate 2, so that the brushing assembly 5 can be driven by the eccentric sleeve 3 to move back and forth linearly.
In order to avoid the extrusion on the swinging moving plate 2 perpendicular to the sliding direction of the swinging moving plate 2, a front avoiding surface and a rear avoiding surface are arranged to form a clearance area, so that the eccentric shaft sleeve 3 can smoothly drive the swinging moving plate 2 to slide left and right.
The utility model arranges an extension part opposite to the output shaft 4a of the motor 4 on the swinging movable plate 2, and an eccentric shaft sleeve 3 extending to the extension part is sleeved on the output shaft 4a of the motor 4; an active area 2a for moving the eccentric sleeve 3 is provided on the outer extension, and a collision surface and an avoidance surface are provided on the inner circumference of the active area 2a, and a certain interval is provided between the avoidance surface and the outer circumferential side wall of the eccentric sleeve 3, thereby allowing the motor 4 to drive the eccentric sleeve 3 to rotate only with the collision surface of the active area 2a and not with the avoidance surface. Thus, when the motor 4 drives the eccentric sleeve 3 to rotate to contact with the impact surface of the active area 2a, the eccentric sleeve 3 drives the swing moving plate 2 to move along the sliding direction of the swing moving plate 2, so that the swing moving plate 2 reciprocates in the sliding direction, and the grinding brush assembly 5 connected with the swing moving plate 2 is driven to swing back and forth. When the motor 4 drives the eccentric shaft sleeve 3 to rotate to be opposite to the avoiding surface of the active area 2a, the eccentric shaft sleeve 3 can be avoided, and the eccentric shaft sleeve 3 and the swing moving plate 2 are prevented from being impacted in the direction perpendicular to the sliding direction of the swing moving plate 2.
By adopting the scheme, the eccentric shaft sleeve 3 is arranged on the output shaft 4a of the motor 4, and the movable area 2a for limiting the movable area of the eccentric shaft sleeve 3 is arranged on the swinging moving plate 2, so that the eccentric shaft sleeve 3 can only move in the movable area 2 a. Therefore, the swinging moving plate 2 is driven to reciprocate in the sliding direction by the impact action between the eccentric shaft sleeve 3 and the inner peripheral wall of the movable area 2a, so that the grinding brush component 5 connected with the swinging moving plate 2 is driven to swing back and forth by the swinging moving plate 2.
Therefore, a connecting rod is not required to be arranged, the swing mechanism can be more compact, stable and simple, and meanwhile, the transmission steps can be reduced, and the transmission efficiency can be improved.
Preferably, as shown in fig. 3, in the present embodiment, a rotating sleeve 31 is sleeved on the outer periphery of the eccentric sleeve 3 and is coaxially and slidably fitted therewith. Through rotating sleeve 31 is established to the cover on eccentric sleeve 3, can become rolling friction with the sliding friction of eccentric sleeve 3 and striking face from this, reduce the striking and make the friction loss to avoid increasing the size of active area 2a, influence the effect that the drive of eccentric sleeve 3 sways the making linear motion of movable plate 2.
Specifically, as shown in fig. 3, at least one bearing 32 is sleeved on the outer periphery of the eccentric shaft sleeve 3, and the rotating sleeve 31 is sleeved on the outer periphery of the bearing 32, so as to realize coaxial rotating fit between the rotating sleeve 31 and the eccentric shaft sleeve 3. The bearing 32 is used for the running fit, the effect is excellent, the running fit stability can be ensured, and the friction loss can not occur.
Specifically, the eccentric sleeve 3 has a flange at one end thereof, and one end surface of the bearing 32 abuts against the flange. The inner periphery of one end of the rotating sleeve 31, which is far away from the flange edge, is provided with a clamping groove, an elastic retainer ring 33 is arranged in the clamping groove, and the other end surface of the bearing 32 abuts against the retainer ring 33. Thereby, the bearing 32 is restrained within the rotating sleeve 31 by the flange and the retainer ring 33.
Alternatively, as shown in fig. 3, in the present embodiment, a sliding rail assembly 11 is disposed on the bearing plate 1, a rail portion of the sliding rail assembly 11 is fixed on the bearing plate 1, and the swing moving plate 2 is fixed on a slider portion of the sliding rail assembly 11. Therefore, the swinging moving plate 2 is in sliding fit with the swinging moving plate 2, and the slide rail assembly 11 can also play a certain guiding role in swinging the swinging moving plate 2 left and right.
Alternatively, as shown in fig. 1 and 3, in the present embodiment, an outward extending portion is provided on the rocking moving plate 2, and the motor 3 is mounted below the outward extending portion. If the motor 3 is directly fixed below the swing moving plate 2, the space of the surface of the swing moving plate 2 is inevitably occupied, so that the swing moving plate 2 needs to be arranged larger to meet the requirement of installing the slide rail assembly 11, which is not beneficial to the miniaturization of the swing moving plate 2. Through setting up the extension portion, can outwards move the mounted position of motor 3, so that reduce the size of rocking movable plate 2 for whole swing mechanism's structure compactification is more fit for installing and use in narrow and small space more.
Alternatively, in the present embodiment, the active region 2a on the extension portion is set to be elliptical-like in order to reduce the area of the extension portion.
Optionally, in this embodiment, the active region 2a is provided as a through hole or a groove.
Alternatively, as shown in fig. 4, in the present embodiment, a cemented carbide piece 21 is disposed in the striking surface, and a part of the surface of the cemented carbide piece 21 is exposed to the outside. Because the eccentric shaft sleeve 3 and the swing moving plate 2 frequently collide in the swing process, the hard alloy part 21 is arranged in the impact surface to improve the structural strength of the inner side of the impact surface, and therefore the swing mechanism can stably do work.
The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.
Claims (10)
1. A swing mechanism for converting straight line motion by direct drive of an eccentric wheel is characterized by comprising a bearing plate, a swing moving plate arranged on the bearing plate in a sliding manner and a motor arranged on the bearing plate;
an eccentric shaft sleeve is sleeved on an output shaft of the motor, the upper end of the eccentric shaft sleeve is inserted into the swinging movable plate, the swinging movable plate is provided with a movable area for the eccentric shaft sleeve to rotate, the inner periphery of the movable area is provided with an impact surface and an avoiding surface, and a certain interval is formed between the avoiding surface and the outer peripheral side wall of the eccentric shaft sleeve;
when the motor drives the eccentric shaft sleeve to rotate, the peripheral wall of the eccentric shaft sleeve collides with the collision surface of the movable area to drive the swinging movable plate to move along the sliding direction of the swinging movable plate.
2. The eccentric wheel direct-drive linear motion conversion swing mechanism according to claim 1, wherein a rotating sleeve coaxially matched with the eccentric shaft sleeve in a sliding manner is sleeved on the outer periphery of the eccentric shaft sleeve.
3. The eccentric wheel direct-drive linear motion conversion swing mechanism according to claim 2, wherein at least one bearing is sleeved on the outer periphery of the eccentric shaft sleeve, and the rotating sleeve is sleeved on the outer periphery of the bearing.
4. The eccentric direct-drive linear motion converting oscillating mechanism according to claim 3, wherein one end of the eccentric sleeve is provided with a flange edge, and one end face of the bearing abuts against the flange edge;
the inner periphery of one end, far away from the flange edge, of the rotating sleeve is provided with a clamping groove, an elastic check ring is arranged in the clamping groove, and the other end face of the bearing is abutted to the check ring.
5. The eccentric direct-drive linear motion conversion oscillating mechanism according to claim 1, wherein the bearing plate is provided with a sliding rail assembly, a rail portion of the sliding rail assembly is fixed on the bearing plate, and the swinging moving plate is fixed on a sliding block portion of the sliding rail assembly.
6. The eccentric direct-drive linear motion converting oscillating mechanism according to claim 5, wherein the oscillating moving plate has an outward extending portion, the motor is fixed below the outward extending portion, the active region is arranged on the outward extending portion, and the eccentric sleeve is inserted into the active region.
7. The eccentric wheel direct-drive linear motion conversion oscillating mechanism according to claim 1 or 6, wherein the active area is an ellipse-like groove.
8. The eccentric wheel direct-drive linear motion conversion swing mechanism according to claim 1 or 6, wherein the active area is an oval-like through hole.
9. The eccentric wheel direct-drive linear motion conversion swing mechanism according to claim 1, wherein a hard alloy piece is arranged in the impact surface, and part of the surface of the hard alloy piece is exposed outside.
10. The eccentric direct-drive linear motion converting oscillating mechanism according to claim 1, wherein the oscillating plate is provided with a support seat, and a main shaft of a grinding and brushing assembly of the grinding and brushing machine is inserted into the support seat along a sliding direction of the oscillating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106383.4U CN213054347U (en) | 2020-09-23 | 2020-09-23 | Swinging mechanism for direct-drive conversion of linear motion of eccentric wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106383.4U CN213054347U (en) | 2020-09-23 | 2020-09-23 | Swinging mechanism for direct-drive conversion of linear motion of eccentric wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213054347U true CN213054347U (en) | 2021-04-27 |
Family
ID=75559782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022106383.4U Expired - Fee Related CN213054347U (en) | 2020-09-23 | 2020-09-23 | Swinging mechanism for direct-drive conversion of linear motion of eccentric wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213054347U (en) |
-
2020
- 2020-09-23 CN CN202022106383.4U patent/CN213054347U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210427 Termination date: 20210923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |