CN219657114U - Spring compression mechanism and spring fatigue test device - Google Patents
Spring compression mechanism and spring fatigue test device Download PDFInfo
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- CN219657114U CN219657114U CN202320827964.8U CN202320827964U CN219657114U CN 219657114 U CN219657114 U CN 219657114U CN 202320827964 U CN202320827964 U CN 202320827964U CN 219657114 U CN219657114 U CN 219657114U
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- 230000006835 compression Effects 0.000 title claims abstract description 35
- 238000007906 compression Methods 0.000 title claims abstract description 35
- 238000009661 fatigue test Methods 0.000 title claims abstract description 8
- 238000005381 potential energy Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000012669 compression test Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a spring compression mechanism and a spring fatigue test device, and relates to the technical field of mechanical test equipment, wherein the spring compression mechanism comprises a base, a fixed seat, a power assembly, a swing arm and a connecting rod assembly; the fixed seat and the power assembly are arranged on the base; the fixing seat is provided with a mounting groove, the swing arm is rotationally connected with the side wall of the mounting groove through a first rotating shaft, and the swing arm is provided with a fixing part capable of fixing the pin of the torsion spring; one end of the connecting rod assembly is connected with the output end of the power assembly, the other end of the connecting rod assembly is abutted against the swing arm, the connecting rod assembly performs linear reciprocating motion under the traction of the power assembly and can push the swing arm to rotate around the first rotating shaft towards the direction close to the bottom wall of the mounting groove, and the multi-period compression of the torsion spring can be realized in a short time, so that the performance and the service life of the torsion spring are tested.
Description
Technical Field
The utility model relates to the technical field of mechanical test equipment, in particular to a spring compression mechanism and a spring fatigue test device.
Background
The torsion spring is also called torsion spring, belonging to the spiral spring. The ends of the torsion springs are secured to other components which pull them back to the original position as they rotate about the center of the torsion springs, creating a torque or rotational force. The torsion spring can store and release angular energy or statically secure a device by rotating the arm about the central axis of the spring body.
When the torsional spring is stored under long-time compression and cold humid environment, the quality of torsional spring is easy to be damaged, leads to elasticity to decline, causes the torsional spring unable use, after the torsional spring production, the reply torsional spring carries out compression test many times in the short time to test performance and life of torsional spring, and then estimate the ageing time of torsional spring and the life that the torsional spring stored for a long time, however, detect the intensity of torsional spring through exerting the pretightning force in the prior art more, be difficult to realize compressing the torsional spring many times, thereby make the spring fatigue intensity detection of the quick stress relaxation phenomenon that produces in the spring short term.
Disclosure of Invention
The utility model aims to provide a spring compression mechanism so as to solve the technical problem that the prior art is difficult to compress a torsion spring for multiple times, so that the fatigue strength of the spring is detected when the stress relaxation phenomenon is rapidly generated in a short period of time.
The present utility model provides a spring compression mechanism comprising: the device comprises a base, a fixed seat, a power assembly, a swing arm and a connecting rod assembly; the fixed seat and the power assembly are arranged on the base; the fixing seat is provided with a mounting groove, the swing arm is rotationally connected with the side wall of the mounting groove through a first rotating shaft, and the swing arm is provided with a fixing part capable of fixing a pin of the torsion spring; one end of the connecting rod assembly is connected with the output end of the power assembly, the other end of the connecting rod assembly is in butt joint with the swing arm, and the connecting rod assembly is driven by the power assembly to perform linear reciprocating motion and can push the swing arm to rotate around the first rotating shaft towards the direction close to the bottom wall of the mounting groove.
Further, the connecting rod assembly comprises a deflector rod and a linkage rod group; one end of the deflector rod is connected with the linkage rod group, the other end of the deflector rod is abutted against the swing arm, and the deflector rod is rotationally connected with the fixed seat through a second rotating shaft.
Further, the linkage rod group includes: the output rod, the push-pull rod and the linkage rod; the output rod is connected with the output end of the power assembly; one end of the push-pull rod is rotationally connected with one end of the output rod, which is far away from the power assembly; one end of the linkage rod is rotationally connected with the push-pull rod, and the other end of the linkage rod is rotationally connected with one end of the deflector rod, which is far away from the swing arm.
Further, the linkage rod, the deflector rod and the swing arm are two; each linkage rod, each deflector rod and each swing arm are a group of linkage assemblies, and the two groups of linkage assemblies are symmetrically arranged on two sides of the push-pull rod by taking the push-pull rod as a central line.
Further, a guide seat is arranged on the base; the guide seat is provided with a guide groove, the extending direction of the guide groove is the moving direction of the push-pull rod, and the push-pull rod is in sliding fit with the guide groove.
Further, a supporting groove is formed in the fixing seat; one end of the push-pull rod, which is far away from the power assembly, is arranged in the supporting groove and is in sliding fit with the supporting groove.
Further, a rolling shaft is arranged at one end, close to the swing arm, of the deflector rod; the axis of the roller is parallel to the axis of the first rotating shaft, and the outer wall of the roller is abutted to the swing arm.
Further, the power assembly includes an output motor and a cam; the cam is connected with the output end of the output motor; the cam is provided with a third rotating shaft, and the output rod is rotationally connected with the cam through the third rotating shaft.
Further, a fixing groove is formed in one end, connected with the first rotating shaft, of the swing arm, a shaft hole used for the first rotating shaft to penetrate through is formed in the side wall of the fixing groove, and a fixing hole used for inserting a pin of the torsion spring is formed in the bottom wall of the fixing groove.
The utility model also aims to provide a spring fatigue test device which comprises a counter, a power supply and a spring compression mechanism; the power supply and the counter are respectively and electrically connected with the power assembly.
The beneficial effects are that:
the utility model provides a spring compression mechanism which comprises a base, a fixed seat, a power assembly, a swing arm and a connecting rod assembly, wherein the fixed seat is arranged on the base; the fixed seat and the power assembly are arranged on the base; the fixing seat is provided with a mounting groove, the swing arm is rotationally connected with the side wall of the mounting groove through a first rotating shaft, and the swing arm is provided with a fixing part capable of fixing the pin of the torsion spring; one end of the connecting rod assembly is connected with the output end of the power assembly, the other end of the connecting rod assembly is abutted against the swing arm, and the connecting rod assembly performs linear reciprocating motion under the traction of the power assembly and can push the swing arm to rotate around the first rotating shaft towards the direction close to the bottom wall of the mounting groove.
When the torsion spring is in use, one end of the torsion spring is fixed on the fixing part, the other end of the torsion spring is abutted in the mounting groove, then the power supply is connected, the power assembly operates to push and pull the connecting rod assembly to reciprocate, the end of the connecting rod assembly pushes the swinging arm to rotate around the axis of the first rotating shaft when in reciprocating movement, so that one end of the torsion spring fixed on the swinging arm rotates, the other end of the torsion spring is abutted on the groove wall of the mounting groove and cannot move, the torsion spring is compressed, the torsion spring deforms to generate elastic potential energy, when the connecting rod assembly is in reset movement, the swinging arm loses the thrust of the connecting rod assembly, the torsion spring releases the elastic potential energy to push the swinging arm to return to the original position, the torsion spring returns to a normal unstressed state, and the connecting rod assembly moves forwards and backwards once respectively, namely, for one period of compression of the torsion spring is realized, the torsion spring can be compressed for multiple periods in a short time, the performance and the service life of the torsion spring are tested, and the aging time of the torsion spring is estimated, and the service life of the torsion spring stored for a long time is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a spring compression mechanism according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a split structure of a spring compression mechanism according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram showing a usage state and a structure of a spring compression mechanism according to an embodiment of the present utility model;
FIG. 4 is a second schematic structural view of a spring compression mechanism according to an embodiment of the present utility model;
FIG. 5 is a third schematic view of a spring compression mechanism according to an embodiment of the present utility model;
fig. 6 is a diagram showing the installation position of the torsion spring of the spring compression mechanism according to the embodiment of the present utility model.
Icon:
100-base;
110-a guide seat; 111-guide grooves;
200-fixing seats;
210-mounting slots; 211-a first rotating shaft;
300-a power assembly;
310-cam; 311-a third rotating shaft;
400-swinging arms; 410-fixing holes;
500-a connecting rod assembly;
510-a linkage rod;
520-output rod;
530—a toggle;
531-a second axis of rotation; 532-roller;
540-push-pull rod.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
As shown in fig. 1 and 2, the spring compression mechanism provided in this embodiment includes a base 100, a fixing base 200, a power assembly 300, a swing arm 400, and a link assembly 500; the fixed seat 200 and the power assembly 300 are both arranged on the base 100; the fixing base 200 is provided with a mounting groove 210, the swing arm 400 is rotatably connected with the side wall of the mounting groove 210 through a first rotating shaft 211, and the swing arm 400 is provided with a fixing part capable of fixing a pin of a torsion spring; one end of the connecting rod assembly 500 is connected with the output end of the power assembly 300, the other end of the connecting rod assembly 500 is abutted against the swing arm 400, and the connecting rod assembly 500 performs linear reciprocating motion under the traction of the power assembly 300 and can push the swing arm 400 to rotate around the first rotating shaft towards the direction close to the bottom wall of the mounting groove.
When the torsion spring is tested, one end of the torsion spring is required to be fixed on the fixing part, the other end of the torsion spring is abutted in the mounting groove 210, then a power supply is connected, as shown in fig. 3 to 5, the power assembly 300 operates to push and pull the connecting rod assembly 500 to reciprocate, the end part of the connecting rod assembly 500 pushes the swing arm 400 to rotate along the axis of the first rotating shaft of the swing arm 400 in the reciprocating movement process, so that one end of the torsion spring fixed on the swing arm 400 rotates, the other end of the torsion spring is abutted on the groove wall of the mounting groove 210 and cannot move, the torsion spring is compressed, the torsion spring deforms to generate elastic potential energy, when the connecting rod assembly 500 performs reset movement, the swing arm 400 loses the thrust of the connecting rod assembly 500, the torsion spring releases the elastic potential energy to push the swing arm 400 to return to the original position, the torsion spring returns to a normal unstressed state, and the connecting rod assembly 500 moves forwards and backwards for one time respectively.
Specifically, in this embodiment, the extending direction of the mounting groove 210 is a horizontal direction, the axis of the first rotating shaft 211 is a vertical direction, the first rotating shaft 211 is detachably set in the mounting groove 210 perpendicular to the bottom wall of the mounting groove 210, when the torsion spring to be tested is mounted, the first rotating shaft 211 is detached, before the first rotating shaft 211 is inserted in the mounting groove 210, the pin of the torsion spring is placed in the fixing portion to be connected with the swing arm 400, and then the first rotating shaft 211 sequentially passes through the groove wall of the mounting groove 210, the swing arm 400 and the torsion spring, so that the penetrating end of the first rotating shaft 211 is inserted into the other groove wall of the mounting groove 210, and the other pin of the torsion spring is abutted against the groove wall of the mounting groove 210. As shown in fig. 3, in a normal state, the swing arm 400 is kept open under the support of the torsion spring, when the power assembly 300 is operated, the link assembly 500 moves and pushes the swing arm 400 to rotate, the swing arm 400 rotates towards the mounting groove 210, the pin of the torsion spring follows the swing arm 400 to rotate, thereby gradually compressing the torsion spring, as shown in fig. 2, the torsion spring is compressed and deformed, the swing arm 400 rotates to a limit position, as shown in fig. 3, one compression of the torsion spring is completed, then, the link assembly 500 is pushed by the power assembly 300 to perform a return motion, the swing arm 400 loses the thrust exerted by the link assembly 500, the torsion spring is restored to the original state, thereby pushing the swing arm 400 to restore to the original position, until the swing arm 400 is restored to the original position, the compression of the torsion spring is completed once, namely, a period of the compression test of the torsion spring is completed, and the test is carried out until 5×10 times of experiments are completed 2 Secondary, 5 x 10 4 Secondary, 1×10 5 Secondary, 2 x 10 5 Secondary, 3.5×10 5 Secondary, 5.5×10 5 Secondary, 7×10 5 Secondary, 9×10 5 Secondary, 1×10 6 And measuring the elasticity by using a spring dynamometer at the next time, and calculating the corresponding stress relaxation rate.
In this embodiment, the linkage assembly 500 includes a toggle 530 and a linkage; one end of the deflector rod 530 is connected with the linkage rod group, the other end of the deflector rod 530 is abutted with the swing arm 400, and the deflector rod 530 is rotatably connected with the fixed seat 200 through the second rotating shaft 531.
After the deflector rod 530 is rotationally connected with the fixed seat 200 through the second rotating shaft 531, the deflector rod 530 rotates in the horizontal direction by taking the axis of the second rotating shaft 531 as the rotating shaft, so that irregular vertical rotation of the deflector rod 530 under the stirring of the linkage rod group is avoided, and the end part of the deflector rod 530 cannot stir the swing arm 400 according to a preset rotating route.
In this embodiment, the link lever group includes: an output lever 520, a push-pull lever 540, and a link lever 510; the output rod 520 is connected with the output end of the power assembly 300; one end of the push-pull rod 540 is rotatably connected with one end of the output rod 520 far away from the power assembly 300; one end of the linkage rod 510 is rotatably connected with the push-pull rod 540, and the other end is rotatably connected with one end of the deflector rod 530 away from the swing arm 400.
When the test is performed, the output rod 520 moves under the drive of the power assembly 300, the push-pull rod 540 connected with the output rod 520 moves along with the output rod 520, the push-pull rod 540 moves back and forth in the same direction under the pushing of the output rod 520, and as the push-pull rod 540 is rotationally connected with the output rod 520, when the angle of the output rod 520 changes, the connection part of the push-pull rod 540 and the output rod 520 rotates, the push-pull rod 540 does not need to rotate, and when the push-pull rod 540 moves back and forth, the linkage rod 510 rotates under the movement of the push-pull rod 540, so that the linkage rod 510 can push the shift rod 530 to rotate when rotating, and the shifting of the shift rod 530 to the swing arm 400 is completed.
Specifically, in this embodiment, the connection between the shift lever 530 and the link lever 510, the connection between the link lever 510 and the push-pull lever 540, and the connection between the push-pull lever 540 and the output lever 520 are all provided with rotating shafts, the ends of the shift lever 530, the link lever 510, the push-pull lever 540, and the output lever 520 are all provided with rotating holes, the rotating shafts are inserted into the rotating holes, the two rod bodies connected with the rotating shafts can rotate with the axes of the rotating shafts being the rotating shafts, and in this embodiment, the axes of the rotating shafts are parallel to each other, so the rotating directions of the rod bodies are the same or opposite.
In this embodiment, there are two linkage bars 510, shift bars 530 and swing arms 400; each of the linkage rod 510, the shift lever 530 and the swing arm 400 is a set of linkage components, and the two sets of linkage components are symmetrically disposed on two sides of the push-pull rod 540 with the push-pull rod 540 as a center line.
The two groups of linkage components are symmetrically arranged by taking the push-pull rod 540 as a central line, and can test two torsion springs simultaneously through the same push-pull rod 540, the output rod 520 and the power component 300, so that a comparison test can be carried out without additionally arranging the power component 300 and the output rod 520.
In this embodiment, a guide seat 110 is disposed on the base 100; the guide seat 110 is provided with a guide groove 111, the extending direction of the guide groove 111 is the moving direction of the push-pull rod 540, and the push-pull rod 540 is in sliding fit with the guide groove 111.
The guide holder 110 can limit the push-pull rod 540, the push-pull rod 540 passes through the guide groove 111, two ends of the push-pull rod 540 are respectively arranged at two sides of the guide groove 111, the groove wall of the guide groove 111 is abutted with the peripheral wall of the push-pull rod 540, and the push-pull rod 540 can slide along the extending direction of the guide groove 111, so that the push-pull rod 540 is in sliding fit with the guide groove 111, the limit of the push-pull rod 540 is realized, the moving direction of the push-pull rod 540 is fixed, and irregular rotation of the push-pull rod 540 is avoided.
Specifically, in this embodiment, the extending direction of the guide groove 111 is a horizontal direction, and the top of the guide groove 111 is opened, so that the push-pull rod 540 is placed in the guide groove 111, and a limiting plate is detachably disposed on the top of the guide groove 111, specifically, the limiting plate is connected with the guide groove 111 through a screw, and the limiting plate can plug the notch at the top of the guide groove 111, so that the push-pull rod 540 is prevented from falling out of the guide groove 111 from the top opening of the guide groove 111.
As an implementation manner, a sliding groove may be provided on the base 100, and the push-pull rod 540 is placed in the sliding groove of the base 100, where the push-pull rod 540 is embedded on the base 100, and a cover plate is provided on the top of the sliding groove to avoid the push-pull rod 540 from falling out of the top of the sliding groove.
In this embodiment, the fixing base 200 is provided with a supporting groove; one end of the push-pull rod 540 remote from the power assembly 300 is disposed within and slidably engaged with the support slot.
The end of the push-pull rod 540 is arranged in the supporting groove, when the push-pull rod 540 moves back and forth, the rod body of the push-pull rod 540 slides in the supporting groove, and the supporting groove can support the rod body of the push-pull rod 540, so that the phenomenon that the push-pull rod 540 is deformed due to long-time falling of the dead weight of the push-pull rod 540 is avoided.
In addition, in the present embodiment, the supporting groove and the guiding groove 111 have the same structure, so that the push-pull rod 540 can be supported, and meanwhile, an auxiliary guiding function can be realized for the push-pull rod 540, so that the movement route of the push-pull rod 540 is further limited, and irregular movement of the push-pull rod 540 is avoided.
In this embodiment, the output end of the power assembly 300, the bottom of the guide groove 111, and the bottom of the support groove are all at the same level, so as to ensure that each rod in the link assembly 500 can move in the same plane.
In the present embodiment, a roller 532 is disposed at one end of the lever 530 near the swing arm 400; the axis of the roller 532 is parallel to the axis of the first shaft 211, and the outer wall of the roller 532 abuts against the swing arm 400.
When the lever 530 pushes the swing arm 400 to rotate, the roller 532 pushes the swing arm 400, so that the swing arm 400 rotates to compress the torsion spring, and the axis of the roller 532 is parallel to the axis of the first rotating shaft 211, so that during pushing, the roller 532 rotates, friction force between the lever and the swing arm 400 can be reduced, and abrasion of the swing arm 400 and the lever 530 is avoided.
In this embodiment, the power assembly 300 includes an output motor and a cam 310; the cam 310 is connected with the output end of the output motor; the cam 310 is provided with a third rotation shaft 311, and the output lever 520 is rotatably connected to the cam 310 through the third rotation shaft 311.
Specifically, in this embodiment, the output end of the output motor faces upward, after the cam 310 is connected to the output motor, the cam 310 can rotate under the driving of the output motor, one end of the output rod 520 follows the third rotating shaft 311 to perform a circumferential motion together with the cam 310, and the other end of the output rod 520 is rotationally connected to the push-pull rod 540.
In this embodiment, a fixing groove is provided at one end of the swing arm 400 connected to the first rotation shaft 211, a shaft hole for the first rotation shaft 211 to pass through is provided at a side wall of the fixing groove, and a fixing hole 410 for inserting a pin of the torsion spring is provided at a bottom wall of the fixing groove.
In this embodiment, referring to fig. 6, after the torsion spring is sleeved on the first rotating shaft 211, the swing arm 400 is sleeved outside the torsion spring, and a pin at one end of the torsion spring is introduced into the fixing hole 410, so that the pin at one end of the torsion spring can rotate along with the swing arm 400, after the torsion spring and the swing arm 400 are installed, the first rotating shaft 211 can be installed in the installation groove 210, and thus the connection of the torsion spring and the swing arm 400 and the rotational connection of the swing arm 400 and the side wall of the installation groove 210 are completed.
The spring fatigue test device provided by the embodiment comprises a counter, a power supply and a spring compression mechanism; the power supply and the counter are respectively and electrically connected with the power assembly 300.
The power supply can provide electric energy for the power component 300 of the spring compression mechanism, so that the power component 300 can drive the connecting rod component 500 to act to push the swing arm 400 to compress the torsion spring, the counter is connected with the power component 300 in a line, and the counter records the compression times of the torsion spring by recording the driving times of the power component 300.
In this embodiment, since the power assembly 300 is an output motor and the cam 310, the numerical value recorded by the counter is the rotation number of the cam 310, and the cam 310 rotates one turn, the push-pull connecting rod assembly 500 and the swing arm 400 compress and release the torsion spring once, so as to complete a compression cycle of the torsion spring, after a compression test is performed on the torsion spring for a predetermined number of times, the spring force can be measured by the spring dynamometer, and the corresponding stress relaxation rate is calculated, and the spring fatigue test device provided by the embodiment can provide stable test data, realize full automation of the service life of the spring; in addition, the spring aging test can be performed in a short time, so that the time and the economic cost are reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present utility model.
Claims (10)
1. A spring compression mechanism, comprising: the device comprises a base (100), a fixed seat (200), a power assembly (300), a swing arm (400) and a connecting rod assembly (500);
the fixed seat (200) and the power assembly (300) are arranged on the base (100);
the fixing seat (200) is provided with a mounting groove (210), the swing arm (400) is rotatably connected with the side wall of the mounting groove (210) through a first rotating shaft (211), and the swing arm (400) is provided with a fixing part capable of fixing a pin of a torsion spring;
one end of the connecting rod assembly (500) is connected with the output end of the power assembly (300), the other end of the connecting rod assembly is abutted against the swing arm (400), and the connecting rod assembly (500) is driven by the power assembly (300) to perform linear reciprocating motion and can push the swing arm (400) to rotate around the first rotating shaft towards the direction close to the bottom wall of the mounting groove.
2. The spring compression mechanism of claim 1, wherein the linkage assembly (500) comprises a toggle lever (530) and a linkage;
one end of the deflector rod (530) is connected with the linkage rod group, the other end of the deflector rod is abutted against the swing arm (400), and the deflector rod (530) is rotationally connected with the fixed seat (200) through a second rotating shaft (531).
3. The spring compression mechanism of claim 2, wherein the linkage rod set comprises: an output rod (520), a push-pull rod (540) and a linkage rod (550);
the output rod (520) is connected with the output end of the power assembly (300);
one end of the push-pull rod (540) is rotationally connected with one end of the output rod (520) far away from the power assembly;
one end of the linkage rod (550) is rotationally connected with the push-pull rod (540), and the other end of the linkage rod (530) is rotationally connected with one end far away from the swing arm (400).
4. A spring compression mechanism according to claim 3, wherein the linkage rod (550), the toggle lever (530) and the swing arm (400) are two;
each linkage rod (550), each deflector rod (530) and each swing arm (400) are a group of linkage components, and the two groups of linkage components are symmetrically arranged on two sides of the push-pull rod (540) by taking the push-pull rod (540) as a central line.
5. A spring compression mechanism according to claim 3, wherein the base (100) is provided with a guide seat (110);
the guide seat (110) is provided with a guide groove (111), the extending direction of the guide groove (111) is the moving direction of the push-pull rod (540), and the push-pull rod (540) is in sliding fit with the guide groove (111).
6. A spring compression mechanism according to claim 3, wherein the mounting base (200) is provided with a support slot;
one end of the push-pull rod (540) far away from the power assembly (300) is arranged in the supporting groove and is in sliding fit with the supporting groove.
7. The spring compression mechanism of claim 2, wherein a roller (532) is provided at an end of the lever (530) adjacent to the swing arm (400);
the axis of the roller is parallel to the axis of the first rotating shaft, and the outer wall of the roller (532) is abutted against the swing arm (400).
8. A spring compression mechanism according to claim 3, wherein the power assembly (300) comprises an output motor and a cam (310);
the cam (310) is connected with the output end of the output motor;
the cam (310) is provided with a third rotating shaft (311), and the output rod (520) is rotatably connected with the cam (310) through the third rotating shaft (311).
9. The spring compression mechanism of claim 1, wherein a fixing groove is provided at an end of the swing arm (400) connected to the first rotation shaft, a shaft hole for the first rotation shaft to pass through is provided at a side wall of the fixing groove, and a fixing hole (410) for inserting a pin of the torsion spring is provided at a bottom wall of the fixing groove.
10. A spring fatigue test device comprising a counter, a power source, and a spring compression mechanism according to any one of claims 1-9;
the power supply and the counter are respectively and electrically connected with the power assembly (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320827964.8U CN219657114U (en) | 2023-04-13 | 2023-04-13 | Spring compression mechanism and spring fatigue test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320827964.8U CN219657114U (en) | 2023-04-13 | 2023-04-13 | Spring compression mechanism and spring fatigue test device |
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| Publication Number | Publication Date |
|---|---|
| CN219657114U true CN219657114U (en) | 2023-09-08 |
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| CN202320827964.8U Active CN219657114U (en) | 2023-04-13 | 2023-04-13 | Spring compression mechanism and spring fatigue test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309364A (en) * | 2023-11-30 | 2023-12-29 | 济南考格尔汽车制造有限公司 | Anti-fatigue testing device and method for vehicle fastener |
-
2023
- 2023-04-13 CN CN202320827964.8U patent/CN219657114U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309364A (en) * | 2023-11-30 | 2023-12-29 | 济南考格尔汽车制造有限公司 | Anti-fatigue testing device and method for vehicle fastener |
| CN117309364B (en) * | 2023-11-30 | 2024-02-06 | 济南考格尔汽车制造有限公司 | Anti-fatigue testing device and method for vehicle fastener |
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