CN211527749U - Force measuring device for middle-long cylindrical helical compression spring - Google Patents
Force measuring device for middle-long cylindrical helical compression spring Download PDFInfo
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- CN211527749U CN211527749U CN202020214896.4U CN202020214896U CN211527749U CN 211527749 U CN211527749 U CN 211527749U CN 202020214896 U CN202020214896 U CN 202020214896U CN 211527749 U CN211527749 U CN 211527749U
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Abstract
The utility model relates to a spring dynamometry field specifically is a well elongated cylinder helical compression spring measuring force device. The device is characterized in that a lower connecting block and a lower positioning block are respectively arranged on two sides of a base plate of the device along the direction of a central axis, and an upper positioning block and an upper connecting block are respectively arranged on two sides of a top plate along the direction of the central axis; the bottom disc and the top disc are oppositely arranged along the direction of a central axis, and the lower positioning block and the upper positioning block are oppositely arranged along the direction of the central axis; two ends of the test spring are respectively connected with the lower positioning block and the upper positioning block; four chassis thread blind holes are uniformly formed in one side of the lower positioning block along the circumference of the chassis, four top disc through holes are uniformly formed in the top disc along the circumference, the chassis thread blind holes correspond to the top disc through holes one to one, and the four guide rods are respectively installed on the top disc and the chassis through the top disc through holes and the chassis thread blind holes which correspond to one. The utility model discloses evenly distributed can further realize the vertical atress central line of spring and the coincidence of pressure head axis in four guide bars on top dish and chassis, guarantees measurement accuracy.
Description
Technical Field
The utility model relates to a spring dynamometry field specifically is a well elongated cylinder helical compression spring measuring force device that well elongated can not stand alone.
Background
The spring has wide application and various types, and relates to various industries. There are compression springs, tension springs, disc springs, etc., among which the most widely used are cylindrical helical compression springs. The spring of the control rod driving mechanism assembly for the million-kilowatt pressurized water reactor nuclear power station is also a cylindrical spiral compression spring, the required load precision is high, the height-diameter ratio of the spring is large (10-50), the stability is poor, and the spring cannot stand alone. At present, the existing compression spring force measuring device cannot accurately test the mechanical property.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a well elongated cylinder helical compression spring measuring force device is provided, can high-efficient, high accuracy measurement spring force value.
The technical scheme of the utility model:
a mid-length cylindrical helical compression spring force measuring device, the device comprising: chassis, top dish, guide bar, lower locating piece, go up locating piece, test spring, lower connecting block, go up the connecting block, concrete structure is as follows:
the two sides of the chassis are respectively provided with a lower connecting block and a lower positioning block along the direction of the central axis, the chassis and the lower connecting block are of an integral structure, and the chassis is connected with the lower positioning block; an upper positioning block and an upper connecting block are respectively arranged on two sides of the top disc along the direction of the central axis, the top disc and the upper connecting block are of an integral structure, and the top disc is connected with the upper positioning block;
the bottom disc and the top disc are oppositely arranged along the direction of a central axis, and the lower positioning block and the upper positioning block are oppositely arranged along the direction of the central axis; the chassis is fixed on a universal tester base through a lower connecting block, the top disc is fixed on a universal tester beam through an upper connecting block, and two ends of a test spring are respectively connected with a lower positioning block and an upper positioning block;
four chassis thread blind holes are uniformly formed in one side of the lower positioning block along the circumference of the chassis, four top disc through holes are uniformly formed in the top disc along the circumference, the chassis thread blind holes correspond to the top disc through holes one to one, and the four guide rods are respectively installed on the top disc and the chassis through the top disc through holes and the chassis thread blind holes which correspond to one.
The middle-long cylindrical helical compression spring force measuring device is characterized in that an external thread is arranged at one end, which is mounted on the chassis, of the guide rod, one end of the guide rod is in threaded connection with a chassis threaded blind hole in the chassis, the other end of the guide rod penetrates through a top disc through hole, and the guide rod is in sliding fit with the top disc through hole in the top disc.
The lower end of the testing spring is sleeved on the side face of the lower positioning block, the upper end of the testing spring is sleeved on the side face of the upper positioning block, and the four guide rods move upwards relatively in the downward compression process of the testing spring.
The middle-long cylindrical helical compression spring force measuring device is characterized in that a lower positioning block is connected with a base plate through a bolt, and an upper positioning block is connected with a top plate through a bolt.
The middle-long cylindrical helical compression spring force measuring device is cylindrical in shape of the lower positioning block, the upper positioning block, the lower connecting block and the upper connecting block.
The middle-long cylindrical helical compression spring force measuring device is characterized in that the height range of the middle-long cylindrical helical compression spring is 43.75-2012.50 mm, and the height-diameter ratio of the middle-long cylindrical helical compression spring is 10-50.
The middle-long cylindrical helical compression spring force measuring device is characterized in that the outer diameters of the lower positioning block and the upper positioning block are D2The length of the lower positioning block and the upper positioning block is more than or equal to 4d +2t when the thickness is-0.1 mm; wherein D is2: test spring inner diameter (mm), d: test spring wire diameter (mm), t: pitch (mm).
The utility model has the advantages of it is following and beneficial effect:
1. the utility model discloses the dynamometry problem of long-type spring in can not stand alone has been solved to the device, and lower locating piece adopts bolted connection with the chassis, goes up the locating piece and adopts bolted connection with the take-up reel, changes different specification locating pieces according to spring internal diameter size moreover, can realize different specification springs, and it is convenient to dismantle, easy operation, easily control.
2. The utility model discloses evenly distributed can further realize the vertical atress central line of spring and the coincidence of pressure head axis in four guide bars on top dish and chassis, and the spring adopts this kind of locating piece to guarantee that the spring freely expands along the circumference direction at compression process, and can not introduce external force, guarantees measurement accuracy.
3. The utility model discloses an go up the locating piece and connect with the top dish, go on before the spring mounting power value system zero clearing, guarantee the weight of top dish and the measurement that the clamping process production power does not influence the power value, improve the power value degree of accuracy.
4. The utility model discloses simple structure, the preparation is simple and easy, low in cost, it is convenient to dismantle, has the laboratory application effect of high-efficient ideal.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of the chassis structure of fig. 1.
Fig. 3 is a right side view of the top tray structure of fig. 1.
Fig. 4 is a sectional view taken along line B-B in fig. 1.
In the figure: 1-a chassis; 2-top plate; 3, a guide rod; 4, a lower positioning block; 5, an upper positioning block; 6-testing the spring; 7, a lower connecting block; 8, an upper connecting block; 9-a chassis thread blind hole; 10-top disk through hole.
The specific implementation mode is as follows:
the following describes embodiments of the present invention in further detail with reference to the drawings and implementation steps. It is to be understood that such detail may be implemented by persons skilled in the art, and that other embodiments may be utilized, and that changes and/or modifications may be made to the illustrated implementation steps without departing from the spirit and scope of the present invention as defined by the appended claims. In addition, although the specific features of the present invention are disclosed in the embodiments, such specific features may be appropriately modified to achieve the functions of the present invention.
As shown in fig. 1-4, the force measuring device for middle-long cylindrical helical compression spring of the present invention mainly comprises: chassis 1, top dish 2, guide bar 3, down locating piece 4, go up locating piece 5, test spring 6, lower connecting block 7, go up connecting block 8 etc. and concrete structure is as follows:
a lower connecting block 7 and a lower positioning block 4 are respectively arranged on two sides of the chassis 1 along the direction of a central axis, the chassis 1 and the lower connecting block 7 are of an integral structure, and the chassis 1 is connected with the lower positioning block 4; an upper positioning block 5 and an upper connecting block 8 are respectively arranged on two sides of the top disc 2 along the direction of the central axis, the top disc 2 and the upper connecting block 8 are of an integral structure, and the top disc 2 is connected with the upper positioning block 5; wherein, the lower positioning block 4, the upper positioning block 5, the lower connecting block 7 and the upper connecting block 8 are all cylindrical.
The base plate 1 and the top plate 2 are oppositely arranged along the direction of a central axis, and the lower positioning block 4 and the upper positioning block 5 are oppositely arranged along the direction of the central axis; the chassis 1 is fixed on the universal tester base through a lower connecting block 7, and the top disc 2 is fixed on a universal tester beam through an upper connecting block 8.
The lower end of the test spring 6 is sleeved on the side face of the lower positioning block 4, the upper end of the test spring 6 is sleeved on the side face of the upper positioning block 5, two ends of the test spring 6 are respectively connected with the lower positioning block 4 and the upper positioning block 5, and the four guide rods 3 move upwards relatively in the downward compression process of the test spring 6.
The utility model discloses in, the external diameter of lower locating piece 4, last locating piece 5 is D ═ D2The length of the lower positioning block 4 and the upper positioning block 5 is more than or equal to 4d +2t when the thickness is-0.1 mm; wherein D is2: test spring inner diameter (mm), d: test spring wire diameter (mm), t: the spring pitch (mm) was tested.
As shown in fig. 1-4, the working process of the present invention is as follows:
【001】 The chassis 1 is inserted into a universal tester base, pin holes of the chassis 1 are aligned with pin holes in the universal tester base, and then the chassis 1 is fixed on the universal tester base through bolts;
【002】 One end of each of the four guide rods 3 with threads is inserted into a chassis threaded blind hole 9 of the chassis 1 respectively, and the four guide rods 3 are screwed tightly and fixed on the chassis 1 firstly;
【003】 A lower positioning block 4 with a bolt is connected with the chassis 1;
【004】 The top disc 2 is inserted into a cross beam of the universal testing machine, pin holes of the top disc 2 are aligned with pin holes in the cross beam of the universal testing machine, and then the top disc 2 is fixed on the cross beam of the universal testing machine through a pin;
【005】 An upper positioning block 5 with a bolt is connected with the top plate 2;
【006】 The four guide rods 3 are respectively inserted into the top disc through holes 10 of the top disc 2 according to the corresponding relation, and the top disc 2 is exposed by about 5-10 mm;
【007】 Starting a compression module of the universal test force value testing system;
【008】 Resetting the universal test force value testing system;
【009】 One end of a middle-long test spring 6 penetrates into the lower positioning block 4;
【010】 Aligning the other end of the middle-long test spring 6 and penetrating the other end into the upper positioning block 5;
【011】 When the top disc 2 is close to the end face of the test spring 6, a displacement fine adjustment knob is selected, and the top disc 2 slightly contacts the end face of the test spring 6 to provide a certain pre-pressure for the test spring 6;
【012】 And the test spring 6 moves downwards along with the beam of the universal testing machine, and the compression displacement and stress curve of the spring is recorded.
The result shows, the utility model discloses the device is under the condition that does not introduce external force, and measurement accuracy is high, easy dismounting moreover, and easy operation, the on-the-spot realization of being convenient for, consequently with the help of universal tester's compression module, elongated cylinder helical compression spring measuring force device in the development can effectively solve the problem that current compression spring measuring force device can't the accuracy carry out mechanical properties test.
What has been described above is merely the preferred implementation steps of the present invention. It is to be noted that changes and/or variations may be made in the illustrated examples by those skilled in the art without departing from the spirit of the appended claims and the scope of the principles of the present invention, which should also be construed as within the scope of the claims.
Claims (7)
1. A middle-long cylindrical helical compression spring force measuring device is characterized by comprising: chassis, top dish, guide bar, lower locating piece, go up locating piece, test spring, lower connecting block, go up the connecting block, concrete structure is as follows:
the two sides of the chassis are respectively provided with a lower connecting block and a lower positioning block along the direction of the central axis, the chassis and the lower connecting block are of an integral structure, and the chassis is connected with the lower positioning block; an upper positioning block and an upper connecting block are respectively arranged on two sides of the top disc along the direction of the central axis, the top disc and the upper connecting block are of an integral structure, and the top disc is connected with the upper positioning block;
the bottom disc and the top disc are oppositely arranged along the direction of a central axis, and the lower positioning block and the upper positioning block are oppositely arranged along the direction of the central axis; the chassis is fixed on a universal tester base through a lower connecting block, the top disc is fixed on a universal tester beam through an upper connecting block, and two ends of a test spring are respectively connected with a lower positioning block and an upper positioning block;
four chassis thread blind holes are uniformly formed in one side of the lower positioning block along the circumference of the chassis, four top disc through holes are uniformly formed in the top disc along the circumference, the chassis thread blind holes correspond to the top disc through holes one to one, and the four guide rods are respectively installed on the top disc and the chassis through the top disc through holes and the chassis thread blind holes which correspond to one.
2. The force measuring device according to claim 1, wherein the guide rod is provided with an external thread at one end thereof mounted on the base plate, one end of the guide rod is connected with the threaded blind hole of the base plate on the base plate through a thread, the other end of the guide rod passes through the through hole of the top plate, and the guide rod is in sliding fit with the through hole of the top plate on the top plate.
3. The force measuring device according to claim 1, wherein the lower end of the test spring is fitted to the side of the lower positioning block, the upper end of the test spring is fitted to the side of the upper positioning block, and the four guide rods move upward relative to each other during the downward compression of the test spring.
4. The force measuring device according to claim 1, wherein the lower positioning block is bolted to the bottom plate, and the upper positioning block is bolted to the top plate.
5. The force measuring device according to claim 1, wherein the lower positioning block, the upper positioning block, the lower connecting block and the upper connecting block are all cylindrical.
6. The force measuring device according to claim 1, wherein the height of the middle-long cylindrical helical compression spring is in the range of 43.75-2012.50 mm, and the height-diameter ratio of the middle-long cylindrical helical compression spring is 10-50.
7. The force measuring device as claimed in claim 1, wherein the lower and upper positioning blocks have outer diameters D2The length of the lower positioning block and the upper positioning block is more than or equal to 4d +2t when the thickness is-0.1 mm; wherein D is2: testing the inner diameter of the spring in mm; d: test bombSpring wire diameter, mm; t: pitch, mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020214896.4U CN211527749U (en) | 2020-02-27 | 2020-02-27 | Force measuring device for middle-long cylindrical helical compression spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020214896.4U CN211527749U (en) | 2020-02-27 | 2020-02-27 | Force measuring device for middle-long cylindrical helical compression spring |
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| CN211527749U true CN211527749U (en) | 2020-09-18 |
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| CN202020214896.4U Active CN211527749U (en) | 2020-02-27 | 2020-02-27 | Force measuring device for middle-long cylindrical helical compression spring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629843A (en) * | 2020-12-11 | 2021-04-09 | 重庆工商大学 | Clamp special for mechanical property test of multi-strand arc spring |
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2020
- 2020-02-27 CN CN202020214896.4U patent/CN211527749U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629843A (en) * | 2020-12-11 | 2021-04-09 | 重庆工商大学 | Clamp special for mechanical property test of multi-strand arc spring |
| CN112629843B (en) * | 2020-12-11 | 2022-12-20 | 重庆工商大学 | Clamp special for mechanical property test of multi-strand arc spring |
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