CN114738368B - Flexible shaft assembly and locking plate thereof - Google Patents
Flexible shaft assembly and locking plate thereof Download PDFInfo
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- CN114738368B CN114738368B CN202210315304.1A CN202210315304A CN114738368B CN 114738368 B CN114738368 B CN 114738368B CN 202210315304 A CN202210315304 A CN 202210315304A CN 114738368 B CN114738368 B CN 114738368B
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- supporting
- locking plate
- flexible shaft
- support
- arms
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
- F16C1/10—Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
- F16C1/102—Arrangements to mount end fittings of the sheathings to support walls or brackets
- F16C1/105—Arrangements to mount end fittings of the sheathings to support walls or brackets to a slot in the bracket
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Connection Of Plates (AREA)
Abstract
The invention relates to the technical field of automobile flexible shafts, and discloses a flexible shaft assembly and a locking plate thereof, which comprise a locking plate body, wherein the locking plate body comprises a first supporting block and two supporting arms, the upper ends of the two supporting arms are respectively connected with the two ends of the first supporting block, a mounting groove which is opened towards the lower end direction of the supporting arms is formed between the two supporting arms, the upper ends of the two supporting arms respectively protrude towards the front side to form supporting convex parts, the lower ends of the two supporting convex parts are respectively connected with a second supporting block, the rear side surface of the first supporting block is a first supporting surface, the rear side surfaces of the two second supporting blocks are respectively second supporting surfaces, the first supporting surface is flush with the second supporting surface, and the most protruding point of the supporting convex parts and the deformation distance a are formed between the first supporting surface and the second supporting surface. The flexible shaft assembly and the locking plate thereof have the advantages of low production cost, high assembly efficiency and falling prevention.
Description
Technical Field
The invention relates to the technical field of automobile flexible shafts, in particular to a flexible shaft assembly and a locking plate thereof.
Background
When the flexible shaft assembly in the variable speed control system is used, the flexible shaft needs to be fixed on the flexible shaft support to realize the push-pull function of the flexible shaft and ensure the movement stroke of the flexible shaft. The structure of the flexible shaft locking device is generally composed of a flexible shaft, a flexible shaft bracket and a flexible shaft locking plate. The flexible shaft 1 and the flexible shaft support are assembled to form an installation groove, the flexible shaft locking plate is installed in the clamping groove to generate elasticity, the elasticity of the flexible shaft locking plate acts on the flexible shaft support to generate friction force, and the flexible shaft locking plate is prevented from falling off while the flexible shaft is fixed. Because the flexible shaft locking plate structure is unreasonable, the vehicle frequently vibrates in the operation process, so that the locking plate falls off, the vehicle can not be shifted, and the whole vehicle can not normally operate.
As shown in figure 5, application number is CN201020592885.6 variable speed control flexible axle locking plate structure, and this locking plate structure is for preventing that the locking plate from dropping, is equipped with connecting seat 10 respectively at the both ends of the opening part of locking plate, connects through rigid connection spare 11, nevertheless unable installation in the little flexible axle assembly in locking plate space between flexible axle support and the flexible axle of this structure, and simultaneously, this height is risen in this structural production, and the packaging efficiency is low.
Disclosure of Invention
The purpose of the invention is: the locking plate and the flexible shaft assembly thereof have the advantages of low production cost, high assembly efficiency and falling prevention.
In order to achieve the above object, the present invention provides a locking plate, which includes a locking plate body, wherein the locking plate body includes a first supporting block and two supporting arms, upper ends of the two supporting arms are respectively connected to two ends of the first supporting block, an installation groove opened toward a lower end of the supporting arms is formed between the two supporting arms, upper ends of the two supporting arms respectively protrude forward to form supporting protrusions, lower ends of the two supporting protrusions are respectively connected to a second supporting block, a rear side surface of the first supporting block is a first supporting surface, rear side surfaces of the two second supporting blocks are respectively second supporting surfaces, the first supporting surface is flush with the second supporting surface, and a deformation distance a is formed between a most protruding point of the supporting protrusion and the first supporting surface and the second supporting surface.
Preferably, the length b of the first supporting surface is 1.5 to 4 times the length c of the second supporting surface.
Preferably, the length b of the first supporting surface is set to be 15-20mm, and the length c of the second supporting surface is set to be 5-10mm.
Preferably, the supporting convex part is a cambered surface.
The utility model provides a flexible axle assembly, including flexible axle, support and the locking plate, axle through-hole has been seted up to the support, the flexible axle passes through axle through-hole install in the support, the flexible axle coaxial fixation has the screens piece, the screens piece with be formed with the draw-in groove between the support, the locking plate passes through mounting groove interference joint in the draw-in groove, support the convex part orientation the screens piece supports pastes the installation, first holding surface with the second holding surface respectively with the support supports pastes the installation.
Preferably, the deformation distance a is 25% -35% larger than the width d of the slot.
Preferably, the length f of the supporting protrusion is set to 18-20mm.
Preferably, the thickness e of the locking piece is set to be 1.5-1.8mm.
Compared with the prior art, the flexible shaft assembly and the locking plate thereof have the beneficial effects that: support the convex part towards the direction protrusion of keeping away from first holding surface and second holding surface, first holding surface flushes with the second holding surface and sets up, support the convex part first holding surface with be formed with deformation distance an between the second holding surface, make and support and form triangular supports structure between convex part, first holding surface and the second holding surface, prevent that the locking plate warp. The deformation distance a enables the locking plate to have certain elastic deformation capacity, the supporting convex part, the first supporting surface and the second supporting surface are respectively matched with the corresponding outer side surfaces in an abutting mode, and the locking plate is fixed between the flexible shaft and the flexible shaft support. Simultaneously, first holding surface and second holding surface are located the both ends that support the convex part respectively, the friction area who props the both ends of cambered surface has been increased, the friction area between locking plate and the flexible axle support promptly, effectively prevent to drop, simultaneously, the lower extreme that supports the convex part at two is connected with the second holding surface respectively, when the vehicle vibrates, the second holding surface is located the both sides of mounting groove notch, the friction area of increase mounting groove notch both sides, prevent that the locking plate from dropping from the notch direction of mounting groove, effectively prevent on the whole that the locking plate from dropping between flexible axle and the flexible axle support. Meanwhile, the locking plate is simple in overall structure, can be of an integrated structure, is few in accessory quantity and low in production cost, can be arranged between the flexible shaft and the flexible shaft support in an interference mode through the mounting groove notch at the lower end of the supporting arm, is simple in mounting mode, and improves mounting efficiency of the flexible shaft assembly.
Drawings
Fig. 1 is a schematic view of the overall structure of a flexible shaft assembly according to an embodiment of the present invention.
FIG. 2 is a schematic side view of a bracket with a flexible shaft according to an embodiment of the present invention.
Fig. 3 is a side schematic view of the overall construction of a lock plate according to an embodiment of the present invention.
Fig. 4 is a schematic side view of a locking plate according to an embodiment of the present invention.
FIG. 5 is a schematic view of the overall structure of comparative scheme 1.
In the figure:
10. a connecting seat; 11. a rigid connection member;
20. locking plates; 21. a lock sheet body; 22. mounting grooves; 23. a flexible shaft; 24. a card position sheet; 25. a support; 26. a card slot;
30. a first support block; 31. a first support surface;
40. a support arm; 41. a support protrusion; 42. a second support block; 43. a second support surface. Provided is a device.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. used herein are used to indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used broadly, and for example, the terms "connected," "connected," or "fixed" may be fixed, or detachably connected, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 4, a locking plate 20 according to a preferred embodiment of the present invention includes a locking plate body 21, the locking plate body 21 includes a first supporting block 30 and two supporting arms 40, upper ends of the two supporting arms 40 are respectively connected to two ends of the first supporting block 30, an installation groove 22 opened toward a lower end of the supporting arms 40 is formed between the two supporting arms 40, upper ends of the two supporting arms 40 are respectively protruded forward to form supporting protrusions 41, lower ends of the two supporting protrusions 41 are respectively connected to second supporting blocks 42, a rear side of the first supporting block 30 is a first supporting surface 31, rear sides of the two second supporting blocks 42 are second supporting surfaces 43, the first supporting surface 31 is flush with the second supporting surfaces 43, and a maximum point of the supporting protrusion 41 and a deformation distance a are formed between the first supporting surface 31 and the second supporting surfaces 43.
According to the locking plate 20, the supporting convex part 41 protrudes towards the direction far away from the first supporting surface 31 and the second supporting surface 43, the first supporting surface 31 and the second supporting surface 43 are arranged in a flush mode, and the deformation distance a is formed among the supporting convex part 41, the first supporting surface 31 and the second supporting surface 43, so that a triangular supporting structure is formed among the supporting convex part 41, the first supporting surface 31 and the second supporting surface 43, and the locking plate 20 is prevented from deforming. The deformation distance a enables the locking plate 20 to have a certain elastic deformation capability, so that the supporting convex portion 41, the first supporting surface 31 and the second supporting surface 43 respectively abut against and cooperate with the corresponding outer side surfaces, and the locking plate 20 is fixed between the flexible shaft 23 and the flexible shaft 23 support 25. Simultaneously, first holding surface 31 and second holding surface 43 are located the both ends that support convex part 41 respectively, the friction area who props the both ends of cambered surface has been increased, the friction area between locking plate 20 and the flexible axle 23 support 25 promptly, effectively prevent to drop, and simultaneously, the lower extreme that supports convex part 41 at two is connected with second holding surface 43 respectively, when the vehicle vibration, second holding surface 43 is located the both sides of mounting groove 22 notch, the friction area of increase mounting groove 22 notch both sides, prevent that locking plate 20 from droing from the notch direction of mounting groove 22, effectively prevent on the whole that locking plate 20 from droing between flexible axle 23 and the flexible axle 23 support 25. Meanwhile, the locking plate 20 is simple in overall structure, the locking plate 20 can be of an integrated structure, the number of accessories is small, the production cost is low, the locking plate 20 can be arranged between the flexible shaft 23 and the flexible shaft 23 support 25 through the notch of the mounting groove 22 at the lower end of the supporting arm 40 in an interference mode, the mounting mode is simple, and the mounting efficiency of the flexible shaft 23 assembly is improved.
Further, as shown in fig. 3, the length b of the first supporting surface 31 is 1.5 to 4 times the length c of the second supporting surface 43. The first supporting surface 31 serves as a main part of the friction surface, forms a large friction area, provides a main friction force for the locking plate 20, and prevents the locking plate 20 from moving during the vibration of the vehicle. Second holding surface 43 is located the both sides of the notch of mounting groove 22 respectively, the frictional force of the both sides of the notch of increase mounting groove 22, second holding surface 43 and notch cooperation prevent that locking plate 20 from coming off from the notch, and simultaneously, first holding surface 31 and second holding surface 43 are located the both ends of locking plate 20 respectively, upper portion and the lower part from locking plate 20 are provided with the friction surface respectively, the wholeness of locking plate 20 frictional action has been promoted, prevent coming off of locking plate 20. Because first holding surface 31 can prevent locking plate 20 from droing as main friction surface, second holding surface 43 as supplementary friction surface, consequently, the length setting of second holding surface 43 is less than first holding surface 31, helps reduction in production cost, also reduces locking plate 20's volume simultaneously, more is applicable to the little flexible axle 23 assembly in installation space and uses.
Preferably, as shown in fig. 3, the length b of the first supporting surface 31 is set to be 15-20mm, wherein the length b is set too small, the locking piece 20 generates insufficient elastic force, so that the formed friction force is insufficient, and the locking piece 20 is not firmly assembled with the flexible shaft 23. If the arrangement is too large, the friction force between the locking plate 20 and the flexible shaft 23 support 25 is too large, and the locking plate 20 is clamped in the clamping groove 26 to be easily deformed and failed. The length c of the second support surface 43 is set at 5-10mm. If the length c is set too small, the second support surface 43 will generate insufficient friction force and the assembly will be weak. If set up too big, in order to make locking plate 20 and flexible axle 23 support 25 complete cooperation, flexible axle 23 support 25 need widen in order to cooperate the locking plate 20 size, makes manufacturing cost increase, is unfavorable for reduction in production cost.
Further, as shown in fig. 4, the supporting convex portion 41 is a supporting arc surface. Because the convex part of locking plate 20 is the cambered surface, the cambered surface profile line is comparatively smooth, and the installation of being more convenient for helps promoting the packaging efficiency.
The utility model provides a flexible axle 23 assembly, as shown in fig. 1 to 4, including flexible axle 23, support 25 and locking plate 20, axle through-hole has been seted up to support 25, flexible axle 23 is installed in support 25 through axle through-hole, flexible axle 23 coaxial fixation has screens piece 24, be formed with draw-in groove 26 between screens piece 24 and the support 25, locking plate 20 passes through mounting groove 22 interference joint in draw-in groove 26, support convex part 41 towards screens piece 24 and support the installation, first holding surface 31 supports the installation with support 25 respectively with second holding surface 43.
According to the flexible shaft 23 assembly, the clamping pieces 24 and the support 25 of the flexible shaft 23 are respectively abutted against two sides of the locking piece 20, so that the flexible shaft 23 is fixed in the shaft through hole of the support 25, and the locking piece 20 is used for fixing the flexible shaft 23. The support convex part 41 of locking plate 20 supports and pastes screens piece 24, the first holding surface 31 and the second holding surface 43 of locking plate 20 all support the installation with support 25, support the most salient point of convex part 41, be formed with deformation distance a between first holding surface 31 and the second holding surface 43, locking plate 20 produces elasticity after the draw-in groove 26 of packing into, locking plate 20's elasticity is used in on support 25, first holding surface 31 all produces frictional force with support 25 with the second support, prevent that locking plate 20 from droing in fixed flexible axle 23. The problem of locking plate 20 drops among the variable speed operating system is solved, the reliability of flexible axle 23 assembly among the fast operating system has been promoted by a wide margin.
When the flexible shaft 23 assembly locking plate 20 falls off, the vehicle flexible shaft 23 assembly is replaced, wherein the replacement cost is 520 yuan per platform. After the flexible shaft 23 assembly is used, the after-sale cost of the flexible shaft 23 assembly is greatly reduced, and the sum of the after-sale locking plate 20 accessories is reduced.
Wherein, compared with the technical scheme of the invention as a comparison scheme 1, the structure of the variable speed control flexible shaft lock plate with the application number of CN201020592885.6 in FIG. 5 is shown;
| technical scheme | Length/piece of assembly | Production cost (Yuan/one) |
| Technical scheme of the |
10 seconds | 2.5 yuan/piece |
| Comparative scheme 1 | 25 seconds | 6 yuan/piece |
Table 1 comparison of assembly duration and production cost data for comparative scheme 1 and the inventive technical scheme.
According to the data in the table, the locking plate 20 of the comparison scheme 1 has a complex structure and high production cost. The nut is required to be installed on the bolt, the assembling time is long, and the production and assembly efficiency is not improved. The locking plate 20 has a simple structure, can be inserted into the clamping groove 26 from the notch for fixation, and has the advantages of simple operation steps, high assembly efficiency and low production cost.
Furthermore, the clamping piece 24 of the flexible shaft 23 is assembled with the bracket 25 to form the mounting groove 22, the deformation distance a is 25% -35% larger than the width d of the clamping groove 26, and the locking piece 20 deforms to generate enough elastic force after being mounted in the clamping groove 26.
Further, as shown in fig. 4, the thickness e of the locking piece 20 is set to 1.5 to 1.8mm. The thickness of the locking plate 20 is set within a suitable range so that the locking plate 20 can provide sufficient elastic support strength to extend the service life of the locking plate 20.
Further, as shown in fig. 4, the length f of the supporting protrusion 41 is set to 18-20mm, and the supporting protrusion 41 is set to a suitable length, so that the overall shape of the supporting protrusion 41 is relatively relaxed, the stress concentration position at the connection position of the two ends of the supporting protrusion 41 is avoided, and the service life of the locking plate 20 is prolonged.
To sum up, in the flexible shaft 23 assembly and the locking plate 20 thereof according to the embodiments of the present invention, the supporting protrusion 41 protrudes toward a direction away from the first supporting surface 31 and the second supporting surface 43, the first supporting surface 31 and the second supporting surface 43 are flush, and a deformation distance a is formed between the supporting protrusion 41, the first supporting surface 31, and the second supporting surface 43, so that a triangular supporting structure is formed between the supporting protrusion 41, the first supporting surface 31, and the second supporting surface 43, and the locking plate 20 is prevented from deforming. The deformation distance a enables the locking plate 20 to have a certain elastic deformation capability, so that the supporting convex part 41, the first supporting surface 31 and the second supporting surface 43 are respectively matched with the corresponding outer side surfaces in an abutting mode, and the locking plate 20 is fixed between the flexible shaft 23 and the flexible shaft 23 bracket 25. Simultaneously, first holding surface 31 and second holding surface 43 are located the both ends that support convex part 41 respectively, the friction area who supports the both ends of cambered surface has been increased, the friction area between locking piece 20 and the flexible axle 23 support 25 promptly, effectively prevent to drop, simultaneously, the lower extreme that supports convex part 41 at two is connected with second holding surface 43 respectively, when the vehicle vibrates, second holding surface 43 is located the both sides of mounting groove 22 notch, the friction area of increase mounting groove 22 notch both sides, prevent that locking plate 20 from dropping from the notch direction of mounting groove 22, effectively prevent on the whole that locking plate 20 from dropping between flexible axle 23 and the flexible axle 23 support 25. Meanwhile, the locking plate 20 has a simple integral structure, the locking plate 20 can be of an integral structure, the number of accessories is small, the production cost is low, the locking plate 20 is arranged between the flexible shaft 23 and the flexible shaft 23 support 25 through the notch of the mounting groove 22 at the lower end of the supporting arm 40 in an interference manner, the mounting mode is simple, and the mounting efficiency of the flexible shaft 23 assembly is improved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. The locking plate is characterized by comprising a locking plate body, wherein the locking plate body comprises a first supporting block and two supporting arms, the upper ends of the two supporting arms are respectively connected with the two ends of the first supporting block, a mounting groove facing the lower end of each supporting arm and opening is formed between the two supporting arms, the upper ends of the two supporting arms respectively protrude forwards to form supporting convex parts, the lower ends of the two supporting convex parts are respectively connected with a second supporting block, the rear side face of the first supporting block is a first supporting face, the rear side face of the second supporting block is a second supporting face, the first supporting face is flush with the second supporting face, and a deformation distance a is formed between the most protruding point of the supporting convex part and the first supporting face and the second supporting face.
2. The locking tab of claim 1, wherein: the length b of the first supporting surface is 1.5-4 times of the length c of the second supporting surface.
3. The locking tab of claim 2, wherein: the length b of the first supporting surface is set to be 15-20mm, and the length c of the second supporting surface is set to be 5-10mm.
4. The locking tab of claim 1, wherein: the supporting convex part is a cambered surface.
5. A flexible shaft assembly is characterized in that: the locking plate comprises a flexible shaft, a support and the locking plate as claimed in any one of claims 1 to 4, wherein a shaft through hole is formed in the support, the flexible shaft is installed on the support through the shaft through hole, a clamping piece is coaxially fixed on the flexible shaft, a clamping groove is formed between the clamping piece and the support, the locking plate is in interference clamping connection with the clamping groove through the installation groove, the supporting convex part faces towards the clamping piece, the clamping piece is abutted to the support, and the first supporting surface and the second supporting surface are respectively abutted to the support.
6. The flexible shaft assembly of claim 5, wherein: the deformation distance a is 25% -35% larger than the width d of the clamping groove.
7. The flexible shaft assembly of claim 5, wherein: the length f of the supporting convex part is set to be 18-20mm.
8. The flexible shaft assembly of claim 5, wherein: the thickness e of the locking plate is set to be 1.5-1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210315304.1A CN114738368B (en) | 2022-03-28 | 2022-03-28 | Flexible shaft assembly and locking plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210315304.1A CN114738368B (en) | 2022-03-28 | 2022-03-28 | Flexible shaft assembly and locking plate thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114738368A CN114738368A (en) | 2022-07-12 |
| CN114738368B true CN114738368B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210315304.1A Active CN114738368B (en) | 2022-03-28 | 2022-03-28 | Flexible shaft assembly and locking plate thereof |
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|---|---|
| CN (1) | CN114738368B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202776594U (en) * | 2012-07-17 | 2013-03-13 | 上海埃蒙迪材料科技有限公司 | Self-locking bracket with locking piece |
| CN103362936A (en) * | 2013-08-05 | 2013-10-23 | 无锡市张泾宇钢机械厂 | Resilient pad |
| CN207550762U (en) * | 2017-11-26 | 2018-06-29 | 张泽英 | A kind of logistics wooden case cover board and side plate pack locking plate |
| CN210116564U (en) * | 2019-04-08 | 2020-02-28 | 北京汽车股份有限公司 | Support fixed bolster and fender mounting structure and vehicle |
| CN214247965U (en) * | 2020-11-26 | 2021-09-21 | 青岛四方川崎车辆技术有限公司 | Adjusting shim with self-locking function |
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2022
- 2022-03-28 CN CN202210315304.1A patent/CN114738368B/en active Active
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| CN114738368A (en) | 2022-07-12 |
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