CN109578536B - Push rod driving anti-instability mechanism and push rod driving device - Google Patents
Push rod driving anti-instability mechanism and push rod driving device Download PDFInfo
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- CN109578536B CN109578536B CN201811396315.7A CN201811396315A CN109578536B CN 109578536 B CN109578536 B CN 109578536B CN 201811396315 A CN201811396315 A CN 201811396315A CN 109578536 B CN109578536 B CN 109578536B
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- push rod
- driving
- support
- chain
- guide channel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a push rod driving instability prevention mechanism and a push rod driving device, comprising: the far end of the push rod penetrates through the far end base and extends outwards; the far end of the supporting chain group is connected with the far end base, and the near end of the supporting chain group extends along the driving path of the push rod; the driving locking blocks are arranged on the near end side of the far-end base at intervals and are fixedly connected with the push rod, and the near end of the support chain group penetrates through the driving locking blocks to extend outwards; the support chain group is in a bound linear shape at the part between the far-end base and the driving locking block, and the part forms a support part of the support chain group so as to support the push rod; the part of the support chain group passing through the driving locking block is in a free bending shape, and the part forms a free part of the support chain group. The invention can effectively provide the push rod support, hardly occupies the driving stroke of the push rod, can greatly reduce the length of the driving structure on the premise of fixing the driving quantity, and the increase and decrease quantity of the length of the push rod driving anti-instability mechanism is consistent with the increase and decrease quantity of the stroke of the push rod.
Description
Technical Field
The present disclosure relates to push rod supporting structures, and particularly to a push rod driving anti-instability mechanism and a push rod driving device.
Background
In the mechanical field, pushrods are commonly used for the transmission or output of linear movements. When the rod is too long, too thin or the pushing load is too large during the pushing process of the push rod, the problem of instability of the push rod is often faced. In many application scenarios, due to the limitations of space size and load requirements, the instability problem cannot be solved by increasing the cross-sectional area of the rod or reducing the push load without changing the material of the rod.
One of the solutions commonly used today is to add support structure to the rod along its drive path, thereby reducing the length of support of the push rod. However, the support structures are arranged in the push rod driving path in a multi-row manner, and the support structures need to move telescopically along with the push rods, and the support structures are often connected and spaced by elastic structures such as springs.
But both due to the thickness of the multiple support structures themselves and the length of the resilient connecting structure when compressed to a minimum, result in an increase in the overall length of the push rod drive structure.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a push rod driving anti-destabilizing mechanism, which can provide effective support for a push rod during driving, and at the same time, only occupy a very small space of a push rod driving path, thereby realizing compact design of push rod driving. Another object of the present invention is to provide a push rod driving apparatus having the push rod driving anti-destabilizing mechanism.
In order to achieve the purpose, the invention adopts the following technical scheme: a push rod driven anti-destabilization mechanism comprising: the far end of the push rod penetrates through the far end base to extend outwards; a support chain set, a distal end of the support chain set being connected to the distal end base, a proximal end of the support chain set extending along a drive path of the push rod; the driving locking blocks are arranged on the proximal end side of the far-end base at intervals and are fixedly connected with the push rod, and the proximal ends of the supporting chain groups penetrate through the driving locking blocks to extend outwards; the support chain group is in a bound linear shape at the part between the far-end base and the driving locking block, and the part forms a support part of the support chain group so as to support the push rod and prevent the instability of the push rod; the part of the support chain group passing through the driving locking block is in a free bending shape, and the part forms a free part of the support chain group.
The push rod driving anti-instability mechanism is preferably characterized in that the support chain group comprises two support chains symmetrically arranged on two sides of the push rod, each support chain comprises a plurality of support units, the front end and the rear end of each support unit are respectively provided with a hinge link lug and a hinge link groove, each support unit is sequentially hinged to each other through the hinge link lug and the hinge link groove to form a bendable chain structure, and a push rod support groove is formed in one side, in contact with the push rod, of each support unit.
Preferably, the support chain group comprises two support chains symmetrically arranged on two sides of the push rod, each support chain comprises a plurality of support units, the support units are sequentially connected with one another through flexible belts to form a bendable chain structure, and a push rod support groove is formed in one side, in contact with the push rod, of each support unit.
Preferably, when the two support chains are in a linear state, the push rod drives the anti-instability mechanism to only bend towards a single direction, and the direction is away from the push rod.
Preferably, the far-end base is provided with a push rod guide channel, and the far end of the push rod extends outwards through the push rod guide channel.
The push rod driving anti-instability mechanism is characterized in that preferably, the driving locking block is provided with two supporting chain group guide channels, and each supporting chain group guide channel comprises a guide channel narrow section and a guide channel bent section; the support chain penetrates out after sequentially passing through the narrow section of the guide channel and the bent section of the guide channel.
Preferably, the width of the narrow section of the guide channel is consistent with or close to the maximum width of the support chain, the axial direction of the narrow section of the guide channel is consistent with the direction of the support chain in a linear shape, and the axial direction of the narrow section of the guide channel is parallel to the axial direction of the push rod.
Preferably, the width of the curved section of the guide channel is greater than that of the support chain, and the curved section of the guide channel guides the support chain to enter a bent state from a linear state in the narrow section of the guide channel.
The push rod driving anti-instability mechanism is preferably characterized in that the driving locking block is provided with a push rod fixing part fixedly connected with the root of the push rod, the push rod is distributed between the two support chain guide channels, and the two support chain guide channels are communicated with each other or separated from each other.
A push rod driving device comprises an integral frame, a driving motor, a coupler, a screw slider, a guide rail and the push rod driving anti-instability mechanism; the integral frame is arranged at the near end side of the driving locking block, the screw rod sliding block is fixedly connected to the driving locking block, and the screw rod is rotatably supported between the integral frame and the far end base and forms a rotating pair with the screw rod sliding block); the driving motor is connected with the screw rod through the coupler; the guide rail is fixedly connected to the integral frame and is parallel to the axial direction of the screw rod, and the driving locking block is arranged on the guide rail in a sliding manner; therefore, the driving motor, the coupler, the screw slider, the guide rail and the driving locking block jointly form a linear driving mechanism so as to realize linear driving of the driving locking block along the axial direction of the push rod; in the process that the push rod is pushed by the driving locking block, the push rod is supported by the linear supporting part between the driving locking block and the far-end base together, so that the instability of the push rod is prevented.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. compared with the existing push rod instability prevention structure, the push rod instability prevention structure provided by the invention can effectively provide push rod support, hardly occupies the driving stroke of the push rod, and can greatly reduce the length of the driving structure on the premise of fixing the driving quantity. 2. As the length or stroke of the push rod increases, the conventional spaced support anti-destabilization structure increases the length of the drive structure by a scaling factor greater than one due to the incompressible portion of the support structure. The length increase and decrease of the push rod driving anti-instability mechanism of the invention is consistent with the increase and decrease of the stroke of the push rod. 3. The invention has simple and reliable structure, can be implemented on the premise of low weight and low cost, and has practical value.
Drawings
FIG. 1 is a schematic view of the overall structure of a push rod driven anti-destabilizing mechanism of the present invention;
FIG. 2 is a schematic cross-sectional view of the anti-destabilizing mechanism driven by the push rod of the present invention;
FIG. 3 is a schematic diagram of a support chain of the present invention;
FIG. 4 is a schematic structural view of the support unit of the present invention;
FIG. 5 is a schematic structural view of another support chain of the present invention;
FIG. 6 is a schematic cross-sectional view of the driving lock of the present invention;
fig. 7 is a schematic view showing the overall structure of the putter driver according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
As shown in fig. 1 and 2, the push rod driving anti-destabilization mechanism provided by the invention comprises: a distal base 101 through which a distal end of the push rod 103 protrudes outward; a support chain set 100, a distal end of the support chain set 100 is connected with the distal end base 101, and a proximal end of the support chain set 100 extends along a driving path of the push rod 103; a driving lock block 102 arranged at a distance on the proximal side of the distal base 101 and fixedly connected with the push rod 103, wherein the proximal end of the support chain set 100 extends outwards through the driving lock block 102; the supporting chain set 100 is in a bound linear shape between the far-end base 101 and the driving locking block 102, and the supporting part of the supporting chain set 100 is formed by the supporting chain set 100 to support the push rod 103 and prevent the instability of the push rod 103; the portion of the support chain assembly 100 after passing through the drive lock block 102 is free to bend, which forms the free portion of the support chain assembly 100.
In the working process of the push rod driving anti-instability mechanism, the locking block 102 is driven to move along the axial direction of the push rod 103, so that the push rod 103 is pushed to extend out of the far-end base 101. The push rod 103 is supported by the support portion of the support chain set 100. Moreover, as the driving lock block 102 is pushed forward, the length of the supporting part of the supporting chain set 100 is gradually increased, and the length of the free part is gradually decreased; conversely, the length of the support portion of the support chain set 100 is gradually shortened, and the length of the free portion is gradually lengthened. Therefore, the length of the support portion supporting the chain set 100 is always the same as the amount of increase or decrease in the stroke of the push rod 103.
In the above embodiment, preferably, as shown in fig. 2 to 4, the support chain group 100 includes two support chains 11 symmetrically disposed on both sides of the push rod 103, each support chain 11 includes a plurality of support units 104, a front end and a rear end of each support unit 104 respectively have a hinge link lug 105 and a hinge link slot 106, the support units 104 are sequentially hinged to each other through the hinge link lug 105 and the hinge link slot 106 to form a bendable chain structure, and a push rod support groove 107 is formed on a side of each support unit 104 contacting the push rod 103.
In the above embodiment, preferably, as shown in fig. 5, the supporting chain set 100 includes two supporting chains 11 symmetrically disposed on both sides of the push rod 103, each supporting chain 11 includes a plurality of supporting units 104, the supporting units 104 are sequentially connected to each other through flexible belts 108 to form a bendable chain structure, and a push rod supporting groove 107 is formed on a side of each supporting unit 104 contacting the push rod 103.
In the above embodiment, preferably, as shown in fig. 2, when the two support chains 11 are in a straight state, the two support chains can only be bent in a single direction, and the direction is away from the push rod 103.
In the above embodiment, preferably, as shown in fig. 6, the distal base 101 has a push rod guide channel thereon, and the distal end of the push rod 103 protrudes outward through the push rod guide channel.
In the above embodiment, it is preferable that the driving lock block 102 has two support chain group guide channels 111, and each support chain group guide channel 111 includes a guide channel narrow section 112 and a guide channel bent section 113; the support chain 11 passes through the narrow guide channel section 112 and the curved guide channel section 113 in sequence and then exits.
In the above embodiment, it is preferable that the width of the guide passage narrow section 112 is equal to or close to the maximum width of the support chain 11, the axial direction of the guide passage narrow section 112 is equal to the direction in which the support chain 11 is in the linear shape, and the axial direction of the guide passage narrow section 112 is parallel to the axial direction of the push rod 103.
In the above embodiment, it is preferable that the width of the guide passage curved section 113 is larger than the width of the support chain 11, and the guide passage curved section 113 guides the support chain 11 from the straight state in the guide passage narrow section 112 to the bent state.
In the above embodiment, it is preferable that the driving locking piece 102 has a push rod fixing portion 114 fixedly connected to the root of the push rod 103, and the push rod 103 is distributed between the two support chain guide passages 111, and the two support chain guide passages 111 are communicated with each other or separated from each other.
As shown in fig. 7, the present invention provides a push rod driving device, which comprises an integral frame 115, a driving motor 116, a coupling 117, a screw 118, a screw slider 119, a guide rail 120 and the aforementioned push rod driving anti-destabilizing mechanism; the integral frame 115 is arranged at the proximal end side of the driving locking block 102, the screw rod slide block 119 is fixedly connected to the driving locking block 102, and the screw rod 118 is rotatably supported between the integral frame 115 and the distal base 101 and forms a rotating pair with the screw rod slide block 119; the driving motor 116 is connected with the screw 118 through a coupling 117; the guide rail 120 is fastened to the integral frame 115 and parallel to the axial direction of the screw 118, and the driving lock block 112 is slidably disposed on the guide rail 120. Therefore, the driving motor 116, the coupler 117, the screw 118, the screw slider 119, the guide rail 120 and the driving lock block 102 together form a linear driving mechanism, so as to realize linear driving of the driving lock block 102 along the axial direction of the push rod 103; during the pushing process of the push rod 103 by the driving lock block 102, the linear support part between the driving lock block 102 and the distal end base 101 supports the push rod 103 together, preventing the instability of the push rod 103.
The present invention has been described in terms of the above embodiments, and various modifications, arrangements, and connections of the components may be made without departing from the scope of the invention.
Claims (9)
1. A push rod driven anti-destabilization mechanism, comprising:
a distal base (101), through which the distal end of the push rod (103) protrudes outwardly;
a support chain set (100), a distal end of the support chain set (100) being connected to the distal end base (101), a proximal end of the support chain set (100) extending along a drive path of the push rod (103);
a driving lock block (102) which is arranged at the proximal end side of the far-end base (101) at intervals and is fixedly connected with the push rod (103), and the proximal end of the supporting chain group (100) extends outwards through the driving lock block (102);
the supporting chain group (100) is in a bound linear shape between the far-end base (101) and the driving locking block (102), and the supporting part of the supporting chain group (100) is formed to support the push rod (103) so as to prevent the instability of the push rod (103); the part of the support chain group (100) passing through the driving locking block (102) is in a free bending shape, and the part forms a free part of the support chain group (100);
the supporting chain group (100) comprises two supporting chains (11) which are symmetrically arranged on two sides of the push rod (103), and when the two supporting chains (11) are in a linear state, the supporting chains can only be bent to a single direction, and the direction is the direction far away from the push rod (103).
2. The push rod driving anti-destabilization mechanism according to claim 1, wherein each of the support chains (11) comprises a plurality of support units (104), the front end and the rear end of each of the support units (104) are respectively provided with a hinge link lug (105) and a hinge link groove (106), the support units (104) are sequentially hinged with each other through the hinge link lug (105) and the hinge link groove (106) to form a bendable chain structure, and a push rod support groove (107) is formed at one side of each of the support units (104) contacting with the push rod (103).
3. The push rod driving anti-destabilization mechanism according to claim 1, wherein each of the support chains (11) comprises a plurality of support units (104), the support units (104) are sequentially connected with each other through a flexible belt (108) to form a bendable chain structure, and a push rod support groove (107) is formed at one side of each of the support units (104) contacting with the push rod (103).
4. A push rod driven anti-destabilizing mechanism according to any of claims 1 to 3, wherein the distal base (101) has a push rod guide channel thereon through which the distal end of the push rod (103) protrudes outwardly.
5. A push rod driven anti-destabilization mechanism according to any of the claims 1 to 3, characterized in that the drive lock block (102) has two support chain guide channels (111) thereon, each of the support chain guide channels (111) comprising a guide channel narrow section (112) and a guide channel curved section (113); the support chain (11) passes through the narrow section (112) of the guide channel and the bent section (113) of the guide channel in sequence and then penetrates out.
6. The push-rod-driving anti-destabilization mechanism according to claim 5, characterized in that the width of the guide channel narrow section (112) coincides with or is close to the maximum width of the support chain (11), the axial direction of the guide channel narrow section (112) coincides with the direction in which the support chain (11) is in a linear shape, while the axial direction of the guide channel narrow section (112) is parallel to the axial direction of the push rod (103).
7. The push-rod driven anti-destabilizing mechanism according to claim 5, characterized in that the width of the guide channel curved section (113) is larger than the width of the support chain (11), and the guide channel curved section (113) guides the support chain (11) from a straight state in the guide channel narrow section (112) into a bent state.
8. The push rod driving anti-destabilization mechanism according to claim 5, wherein the driving lock block (102) is provided with a push rod fixing part (114) fixedly connected with the root of the push rod (103), and the push rod (103) is distributed between the two support chain guide channels (111), and the two support chain guide channels (111) are communicated with each other or separated from each other.
9. A putter driving device characterized by comprising an integral frame (115), a driving motor (116), a coupling (117), a screw (118), a screw slider (119), a guide rail (120) and a putter-driving anti-buckling mechanism according to any one of claims 1 to 8; the integral frame (115) is arranged at the proximal end side of the driving locking block (102), the screw rod sliding block (119) is fixedly connected to the driving locking block (102), and the screw rod (118) is rotatably supported between the integral frame (115) and the distal end base (101) and forms a rotating pair with the screw rod sliding block (119); the driving motor (116) is connected with the screw rod (118) through the coupler (117); the guide rail (120) is fixedly connected to the integral frame (115) and is parallel to the axial direction of the screw rod (118), and the driving locking block (102) is arranged on the guide rail (120) in a sliding mode; therefore, the driving motor (116), the coupler (117), the screw (118), the screw slider (119), the guide rail (120) and the driving lock block (102) jointly form a linear driving mechanism so as to realize linear driving of the driving lock block (102) along the axial direction of the push rod (103); in the process that the push rod (103) is pushed by the driving locking block (102), the push rod (103) is supported by a linear supporting part between the driving locking block (102) and the far-end base (101) together, and therefore instability of the push rod (103) is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396315.7A CN109578536B (en) | 2018-11-22 | 2018-11-22 | Push rod driving anti-instability mechanism and push rod driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396315.7A CN109578536B (en) | 2018-11-22 | 2018-11-22 | Push rod driving anti-instability mechanism and push rod driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578536A CN109578536A (en) | 2019-04-05 |
| CN109578536B true CN109578536B (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811396315.7A Expired - Fee Related CN109578536B (en) | 2018-11-22 | 2018-11-22 | Push rod driving anti-instability mechanism and push rod driving device |
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| CN (1) | CN109578536B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169693A (en) * | 1994-12-19 | 1996-07-02 | Sanin Booruto Seisakusho:Kk | Extendedly paying-out device for band |
| IT1310893B1 (en) * | 1999-08-26 | 2002-02-22 | Danieli Ct Maskin Spa | AUXILIARY CHAIN FOR TOWING GROUP OF DRAWING MACHINES |
| JP5850803B2 (en) * | 2012-06-18 | 2016-02-03 | 株式会社椿本チエイン | Meshing chain unit, meshing chain type advance / retreat device |
| CN102729068B (en) * | 2012-07-13 | 2014-06-04 | 张必葵 | Fixture on lockset perforating machine |
| JP5747055B2 (en) * | 2013-06-04 | 2015-07-08 | 株式会社椿本チエイン | Movable body moving device |
| CN104739466B (en) * | 2013-12-30 | 2017-04-12 | 瑞奇外科器械(中国)有限公司 | Flexible drive element, end effector and surgical operating instrument |
| CN203948585U (en) * | 2014-06-18 | 2014-11-19 | 永康市捷欣机械设备有限公司 | A kind of waveform machine for forming winding chain guide mechanism |
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2018
- 2018-11-22 CN CN201811396315.7A patent/CN109578536B/en not_active Expired - Fee Related
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| CN109578536A (en) | 2019-04-05 |
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