CN215178546U - Leaf spring performance detection device - Google Patents
Leaf spring performance detection device Download PDFInfo
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- CN215178546U CN215178546U CN202121026894.3U CN202121026894U CN215178546U CN 215178546 U CN215178546 U CN 215178546U CN 202121026894 U CN202121026894 U CN 202121026894U CN 215178546 U CN215178546 U CN 215178546U
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- leaf spring
- hydraulic
- steel plate
- hydraulic servo
- sliding guide
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Abstract
The utility model provides a leaf spring performance detection device, on current hydraulic servo unit's basis, the bottom plate has been increased, sliding guide, the fixed bolster, sliding support, the connecting bush, connecting bolt, the bearing plate, U type bolt and action bars, wherein, servo hydraulic press post ann is at the both ends of bottom plate, sliding guide and fixed bolster are installed respectively in the both sides of bottom plate, sliding support establishes on sliding guide, the connecting bush is used for the suit to install in leaf spring's lug and on fixed bolster and sliding support through connecting bolt, the bearing plate is laid at leaf spring's middle part and through two U type bolts and leaf spring fixed connection, the action bars are installed and are exerted pressure to the bearing plate in hydraulic servo unit's hydraulic piston bottom and under hydraulic piston's servo elevating movement drives. The utility model discloses under the various road conditions of can simulating, the kinetic energy that leaf spring bore in the vertical direction between the automobile compartment body and wheel to detect out this leaf spring's rigidity, intensity and durability.
Description
Technical Field
The utility model relates to a detection device especially relates to a leaf spring performance detection device, belongs to automobile parts performance check out test set and makes technical field.
Background
The Leaf Spring (English name: Leaf Spring) is an elastic beam with approximate equal strength formed by combining a plurality of alloy Spring pieces with equal width but unequal length (the thicknesses of the alloy Spring pieces can be equal or unequal), is used for dissipating motion energy between an automobile carriage and wheels in the vertical direction, and is an elastic element which is most widely applied in modern automobile suspension systems.
As an elastic element in an automobile suspension system, the stiffness and the strength of a steel plate spring are important performance indexes of the steel plate spring, and therefore, the stiffness and the strength test of the steel plate spring also become important items in the performance index detection of the steel plate spring.
In addition, the durability of the steel plate spring is also an item which needs to be intensively absorbed in the development and use processes of the automobile.
The durability of the steel plate spring directly influences the reliability of the whole automobile, and through durability tests and rigidity, strength and other detection tests aiming at the steel plate spring, the development period can be shortened, and the research and development cost can be reduced, so that the steel plate spring is a common performance and quality research and control means in automobile parts and whole automobile development and production.
Therefore, the stiffness, strength and durability test of the steel plate spring is an extremely important work for automobile manufacturers and steel plate spring manufacturers.
SUMMERY OF THE UTILITY MODEL
For the detection needs that satisfy leaf spring performance index, the utility model provides a leaf spring performance detection device, aim at:
the device for detecting the performance of the steel plate spring is provided for production enterprises and research and development units of automobiles and steel plate springs, is used for detecting the rigidity, strength and durability indexes of the steel plate spring, simplifies detection operation, reduces the cost of detection equipment, improves detection efficiency, ensures product quality on the basis of ensuring accurate and reliable detection data, and provides scientific basis for research and development and production of the steel plate spring.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a steel plate spring performance detection device is used for detecting the rigidity, strength and durability indexes of a steel plate spring, the steel plate spring is formed by combining a plurality of alloy spring pieces with equal width but unequal length, wherein lifting lugs are arranged at two ends of the longest alloy spring piece;
leaf spring performance detection device include hydraulic servo unit, hydraulic servo unit includes servo hydraulic pressure post and is two servo hydraulic pressure post's inboard carries out servo elevating movement's hydraulic piston, in addition, still includes:
the device comprises a bottom plate, a sliding guide rail, a fixed support, a sliding support, a connecting bush, a connecting bolt, a bearing plate, a U-shaped bolt and an action rod;
the servo hydraulic machine columns are arranged on the bottom plate and are positioned at two ends of the bottom plate;
the sliding guide rail and the fixed support are respectively and fixedly arranged on the bottom plate, and the sliding guide rail and the fixed support are respectively positioned on two sides of a vertical center line of the bottom plate;
the sliding bracket is arranged on the sliding guide rail and can move on the sliding guide rail;
the connecting bush is used for being sleeved in a lifting lug of the steel plate spring, and the connecting bolt is used for respectively installing the connecting bush sleeved in the lifting lug on the fixed support and the sliding support;
the bearing plate is arranged in the middle of the steel plate spring and fixedly connected with the steel plate spring through two U-shaped bolts;
the action rod is arranged at the bottom of the hydraulic piston and is driven by the servo lifting motion of the hydraulic piston to apply pressure to the pressure bearing plate.
Further:
the action rod is vertically mounted on a vertical centerline of the hydraulic piston.
Further:
the steel plate spring performance detection device further comprises a hammer head, and the hammer head is connected to the bottom of the action rod in a threaded connection mode.
As a technical solution, the sliding support is a roller, and the roller of the roller is served by the connecting bolt.
Further:
the sliding guide rail and the fixed support are respectively connected to the bottom plate through bolts.
Further, the leaf spring performance detection device further comprises:
a hydraulic servo controller;
the hydraulic servo controller is arranged on the hydraulic servo unit and used for controlling the output force and the output motion form of a hydraulic piston of the hydraulic servo unit.
Further, the hydraulic servo controller comprises a programmable logic controller.
Furthermore, the steel plate spring performance detection device also comprises a road spectrum acquisition instrument;
the road spectrum acquisition instrument is in information communication with the hydraulic servo controller and is used for transmitting acquired and edited road spectrum information to the hydraulic servo controller and controlling the output force and the output motion form of a hydraulic piston of the hydraulic servo unit through the hydraulic servo controller.
Compared with the prior art, the beneficial effects of the utility model and showing the progress lie in:
1) the utility model provides a leaf spring performance detection device, on the basis of current hydraulic servo unit, the bottom plate has been increased, sliding guide, the fixed bolster, sliding support, the connecting bush, connecting bolt, the bearing plate, U type bolt and action bars, wherein, servo hydraulic press post is installed at the both ends of bottom plate, sliding guide and fixed bolster are fixed mounting respectively in the both sides of the perpendicular central line of bottom plate, sliding support establishes on sliding guide, the connecting bush is used for the suit to install in leaf spring's lug and on fixed bolster and sliding support through connecting bolt, the bearing plate is laid at leaf spring's middle part and through two U type bolts and leaf spring fixed connection, the action bars is installed in hydraulic servo unit's hydraulic piston bottom, the action bars exerts pressure to the bearing plate under hydraulic piston's servo elevating movement drives, thereby detect leaf spring's rigidity, Strength and durability performance indexes;
2) the utility model discloses a hydraulic servo unit is exerted pressure to the impact that leaf spring goes on, can simulate out under various road conditions, the motion energy that leaf spring bore in the vertical direction between the automobile carriage body and wheel to detect out the rigidity, intensity and the durability of this leaf spring, provide accurate, reliable leaf spring performance detection data for the manufacturing enterprise and the research and development unit of car and leaf spring, provide scientific foundation for the research and development and the production of leaf spring;
3) the utility model provides a leaf spring performance detection device, novel in design is unique, compact structure, convenient operation and safe and reliable, can be on guaranteeing that detection data is accurate, reliable basis, simplify detection operation, reduce check out test set's cost, improve detection efficiency to guarantee the quality of product, accelerate research and development speed, consequently, have popularization and using value.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments of the present invention will be briefly described below.
Obviously:
the drawings in the following description are only for some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative effort, but these other drawings also belong to the drawings used for the embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a leaf spring performance detection device provided by an embodiment of the present invention.
In the figure:
110-servo hydraulic column, 120-hydraulic piston;
210-bottom plate, 220-sliding guide rail, 230-fixed bracket, 240-sliding bracket, 250-connecting bushing, 260-connecting bolt, 270-bearing plate, 280-U-shaped bolt, 290-action rod and 291-hammer head;
300-leaf spring.
Detailed Description
In order to make the purpose, technical solution, beneficial effect and obvious progress of the embodiments of the present invention clearer, in the following, the drawings provided in the embodiments of the present invention will be combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that these embodiments of all descriptions are only partial embodiments of the present invention, rather than all embodiments, and based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative work belong to the scope of protection of the present invention.
It should be noted that:
the terms "first," "second," and "third" (if any), etc. in the description and claims of the present invention and the accompanying drawings of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order; furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements, but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the description of the embodiments of the present invention, the terms "upper", "lower", "top", "bottom", and other indicative orientations or positions are only used for describing the orientation or position relationship shown in the drawings according to the embodiments of the present invention, and are not used for indicating or implying any particular orientation, particular orientation configuration, or operation that the device or component must have, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or movably connected, or integrated; the term "connected" refers to a connection between two elements or an interaction between two elements, and unless otherwise specifically defined, the term is used in the present invention to refer to the specific meaning of the term as it is used in the present invention.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical solution of the present invention will be described in detail with reference to specific examples.
Examples
The embodiment provides a steel plate spring performance detection device for detecting the rigidity, the strength and the durability performance indexes of a steel plate spring.
The steel plate spring in the embodiment is formed by combining a plurality of alloy spring pieces with equal width but unequal length, wherein lifting lugs are arranged at two ends of the longest alloy spring piece.
As shown in fig. 1 the embodiment of the present invention provides a leaf spring performance detection device, which has a schematic structural diagram as follows:
a leaf spring performance detection device comprising:
a hydraulic servo unit including servo hydraulic columns 110 and hydraulic pistons 120 performing servo up-and-down movement inside the two servo hydraulic columns 110, and further including:
a base plate 210, a slide guide 220, a fixing bracket 230, a slide bracket 240, a coupling bushing 250, a coupling bolt 260, a bearing plate 270, a U-bolt 280, and an action bar 290;
the servo hydraulic machine column 110 is installed on the base plate 210 and located at both ends of the base plate 210;
the sliding guide 220 and the fixing bracket 230 are respectively fixedly installed on the bottom plate 210, and the sliding guide 220 and the fixing bracket 230 are respectively located at two sides of a vertical center line of the bottom plate 210;
the sliding bracket 240 is disposed on the sliding guide 220 and is movable on the sliding guide 220;
the connecting bushing 250 is used for being sleeved in a lifting lug (not shown in the figure) of the leaf spring 300, and the connecting bolt 260 is used for installing the connecting bushing 250 sleeved in the lifting lug on the fixed bracket 230 and the sliding bracket 240 respectively;
the bearing plate 270 is arranged in the middle of the leaf spring 300, and the bearing plate 270 is fixedly connected with the leaf spring 300 through two U-shaped bolts 280;
the action bar 290 is installed at the bottom of the hydraulic piston 120, and the action bar 290 presses the pressure plate 270 by the servo-up and down movement of the hydraulic piston 120.
The device for detecting the performance of the leaf spring provided by the embodiment is used for detecting the rigidity, the strength and the durability index of the leaf spring by the following method:
a) detecting the rigidity value of the steel plate spring:
firstly, a detected steel plate spring is arranged on a fixed support and a sliding support of a steel plate spring performance detection device through a connecting bush and a connecting bolt, a bearing plate is placed in the middle above the steel plate spring, and the bearing plate and the steel plate spring are fixed together through two U-shaped bolts;
secondly, loading a preloading acting force on the acting rod through a hydraulic servo unit so as to press the bearing plate, slowly loading the acting rod through the hydraulic servo unit until the steel plate spring is reversely arched, recording the acting force value at the moment and the displacement value of one end of the sliding support of the steel plate spring on the sliding guide rail under the acting force of the value, and then unloading the acting force acting on the bearing plate;
repeating the steps, recording the displacement value of one end of the sliding bracket on the sliding guide rail when the steel plate spring is pressed, calculating the average number of the displacement values obtained by the detection, and calculating the rigidity value of the steel plate spring according to the relation between the loading force and the displacement value.
b) Detecting the strength value of the leaf spring:
firstly, as in the a) steel plate spring stiffness test, a steel plate spring to be tested is firstly installed on a steel plate spring performance detection device;
then, a preloading acting force is loaded on the acting rod through the hydraulic servo unit so as to press the bearing plate, the acting rod is slowly loaded through the hydraulic servo unit until the steel plate spring is broken, and the acting force value at the moment is recorded, namely the strength value of the steel plate spring.
c) And (3) detecting the durability of the steel plate spring:
firstly, as in the a) steel plate spring stiffness test, the steel plate spring to be tested is required to be installed on a steel plate spring performance testing device;
and then, editing the acquired road popularity information, introducing the edited road popularity information into a hydraulic servo unit, and allowing the hydraulic servo unit to press the steel plate spring through an action rod according to the action force and the action frequency in the road popularity until the steel plate spring fails, so as to serve as a detection result of the durability of the steel plate spring.
From the above description, it can be seen that:
firstly, the embodiment is based on the existing hydraulic servo unit, a steel plate spring performance detection device is formed by a bottom plate, a sliding guide rail, a fixed support, a sliding support, a connecting bush, a connecting bolt, a bearing plate, a U-shaped bolt and an action rod, wherein a servo hydraulic machine column is arranged at two ends of the bottom plate, the sliding guide rail and the fixed support are respectively and fixedly arranged at two sides of a vertical central line of the bottom plate, the sliding support is arranged on the sliding guide rail, the connecting bush is used for being sleeved in a lifting lug of the steel plate spring and is arranged on the fixed support and the sliding support through the connecting bolt, the bearing plate is arranged in the middle of the steel plate spring and is fixedly connected with the steel plate spring through the two U-shaped bolts, the action rod is arranged at the bottom of a hydraulic piston of the hydraulic servo unit, and the action rod is driven by servo lifting motion of the hydraulic piston to apply pressure to the bearing plate;
secondly, the steel plate spring performance detection device provided by the embodiment can simulate the motion energy born by the steel plate spring in the vertical direction between the automobile carriage body and the wheels under various road conditions by applying pressure to the steel plate spring through the hydraulic servo unit, so that the rigidity, the strength and the durability of the steel plate spring are detected, accurate and reliable steel plate spring performance detection data are provided for the automobile and the steel plate spring production enterprises and research and development units, and scientific basis is provided for the research and development and production of the steel plate spring;
thirdly, the leaf spring performance detection device that this embodiment provided, novel in design is unique, compact structure, convenient operation and safe and reliable, can be on guaranteeing that detection data is accurate, reliable basis, simplify detection operation, reduce check out test set's cost, improve detection efficiency to guarantee the quality of product, accelerate the speed of research and development.
Further, in this embodiment, the action rod 290 is vertically installed on the vertical center line of the hydraulic piston 120, so as to ensure the uniformity of the acting force of the hydraulic piston 120 on the action rod 290, thereby ensuring the accuracy of the detection data.
Further, the steel plate spring performance detecting device may further include a hammer 291, and the hammer 291 is connected to the bottom of the action rod 290 by a screw.
Through setting up tup 291, can slow down the wearing and tearing of action pole 290, both can prolong the working life of action pole 290, also can select the tup 291 of equidimension not according to leaf spring 300's different specifications to this precision of guaranteeing the test data.
In a preferred embodiment, the sliding bracket 240 is a roller, and the roller is served by the connecting bolt 260.
The sliding support 240 adopts a roller, which can reduce the friction between the sliding support 240 and the sliding guide 220 to the utmost extent, so as to obtain the displacement value of one end of the sliding support on the sliding guide which is most accurate when the detected steel plate spring is pressed down, thereby ensuring the accuracy of the detection data.
Further, the sliding guide 220 and the fixing bracket 230 are respectively coupled to the base plate 210 by bolts (not shown).
The sliding guide rail and the fixed support can be connected with the bottom plate more conveniently and quickly by adopting bolt connection for fixation, and the sliding guide rail and the fixed support with different specifications and sizes can be replaced more conveniently as required, so that the detection requirements of the performance indexes of the steel plate springs with different specifications and sizes are met.
Furthermore, the device for detecting the performance of the leaf spring provided by this embodiment may further include a hydraulic servo controller (not shown in the figure), where the hydraulic servo controller is installed on the hydraulic servo unit and is used to control the output force and the output motion form of the hydraulic piston of the hydraulic servo unit.
Further, a programmable logic controller is installed in the hydraulic servo controller.
Through hydraulic servo controller, especially install the hydraulic servo controller of programmable logic controller (being PLC), can realize the automated inspection of leaf spring performance detection device to can further improve the efficiency of detecting and the accuracy of testing.
Furthermore, the steel plate spring performance detection device provided by this embodiment may further include a road spectrum collector (not shown in the figure), the road spectrum collector is in information communication with the hydraulic servo controller, and the road spectrum collector is configured to transmit the collected and edited road spectrum information to the hydraulic servo controller and control the output force and the output motion form of the hydraulic piston of the hydraulic servo unit through the hydraulic servo controller.
Therefore, indexes such as rigidity, strength and durability of the steel plate spring under specific road conditions can be measured more accurately, and more reliable detection reference data is provided for research and production of the steel plate spring.
During the description of the above description:
the description of the terms "present embodiment," "as shown at … …," "further improved technical solution," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and the schematic representation of the terms in this specification does not necessarily refer to the same embodiment or example, and the particular feature, structure, material, or characteristic described may be combined or combined in any suitable manner in any one or more embodiments or examples;
furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the present invention may be modified from the foregoing embodiments or equivalents of some or all of the features of the foregoing embodiments, and such modifications or substitutions do not depart from the spirit of the embodiments of the present invention.
Claims (8)
1. A steel plate spring performance detection device is used for detecting the rigidity, strength and durability indexes of a steel plate spring, the steel plate spring is formed by combining a plurality of alloy spring pieces with equal width but unequal length, wherein lifting lugs are arranged at two ends of the longest alloy spring piece;
leaf spring performance detection device include hydraulic servo unit, hydraulic servo unit includes servo hydraulic pressure post and two the inboard hydraulic piston that carries out servo elevating movement of servo hydraulic pressure post, its characterized in that still includes:
the device comprises a bottom plate, a sliding guide rail, a fixed support, a sliding support, a connecting bush, a connecting bolt, a bearing plate, a U-shaped bolt and an action rod;
the servo hydraulic machine columns are arranged on the bottom plate and are positioned at two ends of the bottom plate;
the sliding guide rail and the fixed support are respectively and fixedly arranged on the bottom plate, and the sliding guide rail and the fixed support are respectively positioned on two sides of a vertical center line of the bottom plate;
the sliding bracket is arranged on the sliding guide rail and can move on the sliding guide rail;
the connecting bush is used for being sleeved in a lifting lug of the steel plate spring, and the connecting bolt is used for respectively installing the connecting bush sleeved in the lifting lug on the fixed support and the sliding support;
the bearing plate is arranged in the middle of the steel plate spring and fixedly connected with the steel plate spring through two U-shaped bolts;
the action rod is arranged at the bottom of the hydraulic piston and is driven by the servo lifting motion of the hydraulic piston to apply pressure to the pressure bearing plate.
2. The leaf spring performance testing apparatus of claim 1, wherein: the action rod is vertically mounted on a vertical centerline of the hydraulic piston.
3. The leaf spring performance testing apparatus of claim 1, wherein: still include the tup, the tup passes through threaded connection mode and connects the bottom of action pole.
4. The leaf spring performance testing apparatus of claim 1, wherein: the sliding support is a roller, and the roller of the roller is served by the connecting bolt.
5. The leaf spring performance testing apparatus of claim 1, wherein: the sliding guide rail and the fixed support are respectively connected to the bottom plate through bolts.
6. The leaf spring performance testing apparatus of claim 1, further comprising:
a hydraulic servo controller;
the hydraulic servo controller is arranged on the hydraulic servo unit and used for controlling the output force and the output motion form of a hydraulic piston of the hydraulic servo unit.
7. The leaf spring performance testing apparatus of claim 6, wherein: the hydraulic servo controller comprises a programmable logic controller.
8. The leaf spring performance testing apparatus of claim 6, further comprising:
a road spectrum acquisition instrument;
the road spectrum acquisition instrument is in information communication with the hydraulic servo controller and is used for transmitting acquired and edited road spectrum information to the hydraulic servo controller and controlling the output force and the output motion form of a hydraulic piston of the hydraulic servo unit through the hydraulic servo controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026894.3U CN215178546U (en) | 2021-05-13 | 2021-05-13 | Leaf spring performance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026894.3U CN215178546U (en) | 2021-05-13 | 2021-05-13 | Leaf spring performance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215178546U true CN215178546U (en) | 2021-12-14 |
Family
ID=79369704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121026894.3U Active CN215178546U (en) | 2021-05-13 | 2021-05-13 | Leaf spring performance detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215178546U (en) |
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2021
- 2021-05-13 CN CN202121026894.3U patent/CN215178546U/en active Active
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