CN212206541U - Ejection falling detection testing machine for frame front fork assembly - Google Patents
Ejection falling detection testing machine for frame front fork assembly Download PDFInfo
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- CN212206541U CN212206541U CN202022690104.3U CN202022690104U CN212206541U CN 212206541 U CN212206541 U CN 212206541U CN 202022690104 U CN202022690104 U CN 202022690104U CN 212206541 U CN212206541 U CN 212206541U
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Abstract
An ejection falling detection testing machine for a frame front fork assembly comprises a base, a guide frame, a protective barrel, a lifting frame and a limit ring cover, wherein an upward convex impact table is fixedly installed in the middle of the top surface of the base; the guide frame is arranged over the impact table in a spanning mode, the middle of the guide frame is sleeved with the lifting frame in a lifting and sliding mode, and the bottom of the guide frame is sleeved with the buffer spring; the limiting ring cover is coaxially arranged and is embedded on the inner wall of the protective cylinder in a sliding manner; the inner wall of the lifting frame is fixedly connected with a plurality of hanging ropes for hanging the frame front fork assembly. The ejection falling detection testing machine adopts an ejection detection mode to replace a hoisting detection mode in the prior art, avoids the negative influence of external connecting equipment on the free falling action of the workpiece in the falling process, and has high detection precision.
Description
Technical Field
The utility model relates to a mechanical detection technical field specifically is a frame front fork sub-assembly launch and fall testing machine.
Background
The frame and the front fork of the bicycle and the electric moped are main supporting parts, the structural strength, the external force damage resistance and the stability of the connecting part of the frame and the front fork are key indexes of national standards, and the safety quality and the service life of the bicycle and the electric moped are seriously related.
However, the current fall detection of bicycles and electric mopeds is usually performed on the basis of the whole vehicle or on a single component, and a device special for detecting the fall of a frame and a front fork assembly is not found yet, and the existing whole vehicle fall detection device cannot adjust the fall posture of the vehicle, namely cannot adjust where the vehicle is as a contact point to perform a fall test.
Moreover, in the falling detection equipment in the prior art, the object to be detected is mostly lifted by adopting a chain block, a belt or a steel wire rope, then the connecting piece is quickly paid off and falls synchronously with the object to be detected, but the falling mode can improve the potential energy of the object to be detected, the falling process is extremely unstable, the shaking and other conditions are easy to occur, the paying off speed is not easy to control, and the detection precision is further reduced.
Therefore, how to adopt a drop detection testing machine to realize the adjustment of the vehicle drop attitude and the landing point is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, a frame front fork sub-assembly launch and fall testing machine is provided, this launch and fall testing machine adopts and launches the hoist and mount testing mode that testing mode replaced among the prior art, avoids falling the negative effects of in-process external connecting device to the action of the free falling body of work piece, and detects the precision height.
An ejection falling detection testing machine for a frame front fork assembly comprises a base, a guide frame, a protective barrel, a lifting frame and a limit ring cover, wherein an upward convex impact table is fixedly installed in the middle of the top surface of the base; the guide frame is arranged over the impact table in a spanning mode, the middle of the guide frame is sleeved with the lifting frame in a lifting and sliding mode, and the bottom of the guide frame is sleeved with the buffer spring; the limiting ring cover is coaxially arranged and is embedded on the inner wall of the protective cylinder in a sliding manner; the inner wall of the lifting frame is fixedly connected with a plurality of hanging ropes for hanging the frame front fork assembly.
In addition, a limit ring groove is coaxially manufactured on the inner wall of the protective cylinder, and the top of the protective cylinder is hinged and connected with a hydraulic ejector rod; the limiting ring groove is internally and circumferentially slid and axially limited and connected with a limiting ring cover; an outer circumference guide wheel and an inner circumference guide wheel are uniformly distributed on the bottom surface of the limiting ring cover in the circumferential direction, wherein the outer circumference guide wheel is rotatably supported on the inner wall of the bottom of the limiting ring groove, and the inner circumference guide wheel is arranged above the base in a hanging mode.
Moreover, a plurality of plum blossom-shaped pin plates which are arranged towards the axis of the limit ring cover are manufactured on the annular inner wall of the limit ring cover, and the top surface of the limit ring cover is tangentially and hinged with the output end of the hydraulic ejector rod; the bottom surface of the plum blossom pin plate is rotatably connected with an inner circumference guide wheel.
And the lifting frame is in a ring shape, the outer diameter of the lifting frame is smaller than the inner diameter of the protective cylinder, the inner diameter of the lifting frame is larger than the outer diameter of the impact table, a plurality of knocking plates arranged right above the impact cylinder are fixedly arranged on the bottom surface of the lifting frame, and a plurality of plum blossom grooves which are sunken towards the axis of the lifting frame and are used for vertically penetrating through the plum blossom pin plates are manufactured on the annular inner wall of the lifting frame.
The utility model has the advantages and the technical effect be:
the utility model discloses a test machine for detecting the ejection and falling of a frame front fork assembly, which provides a main body support through a base, an impact platform on the base is used for providing an impact contact surface of the frame front fork assembly, and a guide frame on the base provides vertical lifting guide of a lifting frame; the hanging rope on the inner periphery of the lifting frame is used for binding and fixing the frame front fork assembly according to the falling posture, the buffer spring at the bottom of the lifting frame is used for buffering the falling impact force of the lifting frame (before the lifting frame is contacted with the buffer spring, the frame front fork assembly impacts the top surface of the impact table, so the design of the buffer spring cannot influence the falling detection of the free falling body of the assembly), and the knocking plate at the bottom of the lifting frame is used for contacting the piston end of the impact cylinder and enhancing the structural strength at the bottom of the lifting frame; the protective cylinder is used for preventing the combined piece from bursting out to hurt people, and the protective cylinder is used for slidably positioning the limit ring cover; the plum blossom cotter board of spacing ring lid is used for adjusting the pressfitting on falling to buffer spring to on the lift frame that has been steady state, for the impact cylinder provides the energy storage spacing when lift frame bottom jack-up, and the spacing ring lid top is passed through hydraulic pressure ejector pin and is connected with protection section of thick bamboo top, provides the rotational power for the spacing ring lid by hydraulic pressure top cap.
The utility model discloses a frame front fork sub-assembly launch and fall testing machine, this launch and fall testing machine replaces the hoist and mount mode with the mode that falls that launches rising and free fall and avoids falling the negative effects of in-process external connecting device to work piece free fall action, and it detects the precision higher, is a frame front fork sub-assembly launch and fall testing machine who has higher creativity.
Drawings
Fig. 1 is a main view semi-sectional view (highest position state of the lifting frame) of the present invention;
fig. 2 is a main view semi-sectional view (the lowest position of the lifting frame) of the present invention;
FIG. 3 is a top view of the lifting frame, the protective cylinder and the stop ring cover assembly of the present invention;
FIG. 4 is a schematic view (passing state) of the connection structure of the lifting frame, the protective cylinder and the stop ring cover assembly of the present invention;
fig. 5 is a schematic view of the connection structure of the lifting frame, the protective cylinder and the limiting ring cover assembly of the present invention (lifting limiting state);
in the figure: 1-a lifting frame; 2-a guide frame; 3, hanging a rope; 4-knocking the plate; 5-a protective cylinder; 6-a limit ring cover; 7-a limit ring groove; 8-a buffer spring; 9-impact cylinder; 10-a base; 11-hydraulic ejector rods; 12-a peripheral guide wheel; 13-inner peripheral guide wheel; 14-plum blossom groove; 15-plum blossom pin plate.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
An ejection falling detection testing machine for a frame front fork assembly comprises a base 10, a guide frame 2, a protective barrel 5, a lifting frame 1 and a limit ring cover 6, wherein an upward convex impact table is fixedly installed in the middle of the top surface of the base, the protective barrel extending upwards is fixedly installed on the periphery of the top surface of the base, and a plurality of impact cylinders 9 of which output ends extend upwards out of the top surface of the base are fixedly embedded in the base; the guide frame is arranged over the impact table in a spanning mode, the middle of the guide frame is sleeved with the lifting frame in a lifting and sliding mode, and the bottom of the guide frame is sleeved with the buffer spring 8; the limiting ring cover is coaxially arranged and is embedded on the inner wall of the protective cylinder in a sliding manner; the inner wall of the lifting frame is fixedly connected with a plurality of hanging ropes 3 for hanging the frame front fork assembly.
In addition, a limit ring groove 7 is coaxially formed on the inner wall of the protective cylinder, and the top of the protective cylinder is hinged and connected with a hydraulic ejector rod 11; the limiting ring groove is internally and circumferentially slid and axially limited and connected with a limiting ring cover; an outer circumference guide wheel 12 and an inner circumference guide wheel 13 are uniformly distributed on the bottom surface of the limit ring cover in the circumferential direction, wherein the outer circumference guide wheel is rotatably supported on the inner wall of the bottom of the limit ring groove, and the inner circumference guide wheel is arranged above the base in a hanging manner.
Moreover, a plurality of plum blossom-shaped pin plates 15 which are arranged towards the axis of the limit ring cover are manufactured on the annular inner wall of the limit ring cover, and the top surface of the limit ring cover is tangentially and hinged with the output end of the hydraulic ejector rod; the bottom surface of the plum blossom pin plate is rotatably connected with an inner circumference guide wheel.
And the lifting frame is in a ring shape, the outer diameter of the lifting frame is smaller than the inner diameter of the protective cylinder, the inner diameter of the lifting frame is larger than the outer diameter of the impact table, a plurality of knocking plates 4 arranged right above the impact cylinder are fixedly arranged on the bottom surface of the lifting frame, and a plurality of plum blossom grooves 14 which are sunken towards the axis of the lifting frame and are used for vertically penetrating through the plum blossom pin plates are formed in the annular inner wall of the lifting frame.
Additionally, the utility model discloses it is preferred, strike cylinder and hydraulic ram all adopt the ripe product among the prior art.
To more clearly illustrate the embodiments of the present invention, an example is provided below:
an ejection falling detection testing machine for a frame front fork assembly is characterized in that a lifting frame is fixed to the lowest position shown in figure 2 before detection is carried out, the bottom of the lifting frame is supported by a buffer spring and an impact cylinder piston rod, the top of the lifting frame is supported by an inner peripheral guide wheel rotatably connected with the bottom of a quincuncial pin plate, and then a hanging rope with proper length is selected to bind the frame front fork assembly to the middle position of the lifting frame according to a falling posture and a landing point; then the impact cylinder is inflated, the hydraulic mandril drives the limit ring cover to rotate in the limit ring groove until the quincuncial groove passes through the quincuncial pin plate at a certain moment, so that the lifting frame, the hanging rope and the frame front fork assembly are ejected and lifted together; when the lifting frame rises to the highest position shown in figure 1, all kinetic energy applied by the impact cylinder is converted into potential energy, then the lifting frame and the frame front fork assembly perform free falling body action until the frame front fork assembly impacts the top surface of the impact table firstly, then the lifting frame falls onto the buffer spring to perform elastic buffer with a certain amplitude, and the buffer amplitude is not greater than the length of the hanging rope, namely, the frame front fork assembly is in a static state on the impact table in the lifting frame buffer process; and finally, finishing all the action flows of the ejection falling detection testing machine once after the lifting frame stops sliding and is in a static state.
The parts of the utility model which are not described all adopt the mature products and the mature technical means in the prior art.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (4)
1. The utility model provides a frame front fork sub-assembly launch and fall testing machine which characterized in that: the device comprises a base, a guide frame, a protective barrel, a lifting frame and a limit ring cover, wherein the middle part of the top surface of the base is fixedly provided with an upward-protruding impact table, the periphery of the top surface of the base is fixedly provided with an upward-extending protective barrel, and a plurality of impact cylinders of which output ends extend upwards out of the top surface of the base are fixedly embedded in the base; the guide frame is arranged over the impact table in a spanning mode, the middle of the guide frame is sleeved with the lifting frame in a lifting and sliding mode, and the bottom of the guide frame is sleeved with the buffer spring; the limiting ring cover is coaxially arranged and is embedded on the inner wall of the protective cylinder in a sliding manner; and a plurality of hanging ropes for hanging the frame front fork assembly are fixedly connected to the inner wall of the lifting frame.
2. The ejection drop detection tester for the front fork assembly of the vehicle frame according to claim 1, wherein: a limiting ring groove is coaxially formed in the inner wall of the protective cylinder, and the top of the protective cylinder is hinged and connected with a hydraulic ejector rod; the limiting ring groove is internally and circumferentially slid and axially limited and connected with a limiting ring cover; the bottom surface of the limiting ring cover is circumferentially and uniformly provided with outer circumference guide wheels and inner circumference guide wheels, wherein the outer circumference guide wheels are rotatably supported on the inner wall of the bottom of the limiting ring groove, and the inner circumference guide wheels are arranged above the base in a hanging manner.
3. The ejection drop detection tester for the front fork assembly of the vehicle frame according to claim 2, wherein: a plurality of plum blossom-shaped pin plates which are arranged towards the axis of the limit ring cover are manufactured on the annular inner wall of the limit ring cover, and the top surface of the limit ring cover is tangentially and hinged with the output end of the hydraulic ejector rod; the bottom surface of the plum blossom pin plate is rotatably connected with an inner circumference guide wheel.
4. The ejection drop detection tester for the front fork assembly of the vehicle frame as claimed in claim 3, wherein: the lifting frame is in a ring shape, the outer diameter of the lifting frame is smaller than the inner diameter of the protective cylinder, the inner diameter of the lifting frame is larger than the outer diameter of the impact table, a plurality of knocking plates arranged right above the impact cylinder are fixedly arranged on the bottom surface of the lifting frame, and a plurality of plum blossom grooves which are sunken towards the axis of the lifting frame and are used for vertically penetrating through the plum blossom pin plate are manufactured on the annular inner wall of the lifting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022690104.3U CN212206541U (en) | 2020-11-19 | 2020-11-19 | Ejection falling detection testing machine for frame front fork assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022690104.3U CN212206541U (en) | 2020-11-19 | 2020-11-19 | Ejection falling detection testing machine for frame front fork assembly |
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| CN212206541U true CN212206541U (en) | 2020-12-22 |
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| CN202022690104.3U Active CN212206541U (en) | 2020-11-19 | 2020-11-19 | Ejection falling detection testing machine for frame front fork assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117030292A (en) * | 2023-10-08 | 2023-11-10 | 广东粤港澳大湾区黄埔材料研究院 | Shock-falling testing device for aerocar |
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2020
- 2020-11-19 CN CN202022690104.3U patent/CN212206541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117030292A (en) * | 2023-10-08 | 2023-11-10 | 广东粤港澳大湾区黄埔材料研究院 | Shock-falling testing device for aerocar |
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