CN218066996U

CN218066996U - Spring fatigue test equipment

Info

Publication number: CN218066996U
Application number: CN202221434641.4U
Authority: CN
Inventors: 张东东
Original assignee: Catalog Precision Parts Suzhou Co ltd
Current assignee: Catalog Precision Parts Suzhou Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-12-16
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a spring fatigue test equipment, including mount and base, mount welded fastening is in base upper end rear side, the mount upper end is fixed with electric putter, the symmetry is fixed with two sets of guide bars between mount inboard and the base, sliding connection has the fixed plate on the guide bar, the inboard fixed plate lower extreme of guide bar is fixed with the quarter butt, sliding connection has the indicator panel on the quarter butt. The utility model discloses a threaded connection's compression cover can conveniently be dismantled compression cover, and conveniently adjusts the extension length of compression cover, simultaneously through the nut, conveniently highly fixes the indicator board, simultaneously through the indicator board, conveniently carries on spacingly to the expansion sleeve, makes compression cover and indicator board contact in the installation, can make multiunit compression cover position on the connecting rod unanimous, guarantees the unanimity of the volume of compressing when testing the spring, improves and detects the accuracy.

Description

Spring fatigue test equipment

Technical Field

The utility model relates to a spring test technical field specifically is a spring fatigue test equipment.

Background

Compression spring fatigue means that the metal is often deformed, cracks increase, crack gaps increase, and fatigue is caused. In practical application, the fatigue life of the spring is greatly related to the size, direction and time-varying rule of the load. Under the conditions of large load and large amplitude, the cycle frequency of the elastic element breakage is reduced, and the fatigue performance of the spring steel wire is measured by using the fatigue limit in the engineering.

The patent with the publication number of CN215492324U discloses a spring fatigue testing machine, which comprises a base, wherein a plurality of lower fixing seats are arranged on the base, the lower fixing seats are arranged in a straight line shape, a supporting side plate is arranged on one side of the lower fixing seats of the base, a lifting plate is connected onto the supporting side plate through a lifting mechanism, a plurality of lifting seats are slidably mounted on the lifting plate, the lifting seats are perpendicular to the lifting plate and can slide up and down relative to the lifting plate, upper fixing seats are correspondingly arranged at the bottom ends of the lifting seats, and the upper fixing seats correspond to the lower fixing seats in position one by one; the base is provided with a controller, and the lifting mechanism is electrically connected with the controller, so that the efficiency of the spring fatigue test can be effectively improved.

Can only carry out tensile test to the spring among the above-mentioned technique, and carry out compression test to the spring, it takes place lateral displacement easily at compression in-process spring, leads to the test inaccurate, when testing the spring of different specifications simultaneously, it adjusts through adjusting screw, nevertheless because personnel manual operation, it is difficult to control and rotates the number of turns unanimous at every turn, and then the distance that can appear between two sets of fixing bases is inconsistent, influences measurement accuracy, so carries out technical innovation in this technique.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring fatigue test equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spring fatigue test equipment, includes mount and base, mount welded fastening is in base upper end rear side, the mount upper end is fixed with electric putter, the symmetry is fixed with two sets of guide bars between mount inboard and the base, sliding connection has the fixed plate on the guide bar, the inboard fixed plate lower extreme of guide bar is fixed with the quarter butt, sliding connection has the indicator panel on the quarter butt, the fixed plate is located the indicator panel upside, electric putter downside telescopic link passes mount and fixed plate fixed connection, fixed plate downside equidistance is fixed with five groups of connecting rods, the connecting rod passes the indicator panel and has the compression cover through threaded connection, the compression cover is located the indicator panel downside, the activity is provided with the installation base on the base, installation base upper end equidistance is fixed with the connecting seat, the cover is equipped with the stop collar on the connecting seat, it is fixed with pressure sensor to inlay on the connecting seat, be fixed with the support cover on the pressure sensor, the connecting seat corresponds respectively and is located the positive downside of compression cover.

Preferably, the connecting rod external diameter is less than the compression cover internal diameter, the inside processing of compression cover has the internal thread, the processing of connecting rod side has the external screw thread, the bar groove has been seted up to compression cover bottom.

Preferably, the guide rod on the left side of the base is provided with scale marks, threads are machined on the upper side face of the short rod on the inner side of the guide rod, and the short rod on the lower side of the indicating plate is connected with a nut through the threads.

Preferably, a groove is formed in the base, the mounting base is mounted in the groove, a plurality of groups of threaded holes are formed in the groove, the mounting base is connected with the bolts through threads, and the bolts penetrate through the mounting base and are screwed into the corresponding threaded holes.

Preferably, the fixing frame looks sideways at the cross-section and personally submits the L type, be fixed with the controller on the fixing frame on electric putter right side, the controller passes through wire and pressure sensor and electric putter electric connection.

Preferably, including fixing the fixing base on the installation base and fixing the link at the connecting rod downside, the fixing base sets up in installation base positive front side, and corresponds the setting with the installation base respectively, fixing base upper end welded fastening has U type peg.

Preferably, the main cross section of the connecting seat is convex, the magnetic rings are fixed on the side surface of the connecting seat and the corresponding positions inside the limiting sleeve, and the two groups of magnetic rings are magnetically connected.

Compared with the prior art, the beneficial effects of the utility model are that: a spring fatigue testing device is provided,

1. the compression sleeve is connected through the screw thread, the compression sleeve can be conveniently disassembled, the extension length of the compression sleeve can be conveniently adjusted, the height of the indicating plate can be conveniently fixed through the nut, meanwhile, the telescopic sleeve can be conveniently limited through the indicating plate, the compression sleeve is contacted with the indicating plate in installation, the positions of the compression sleeves on the connecting rod can be consistent, the consistency of compression amount when the springs are tested is ensured, the detection accuracy is improved, meanwhile, different springs which do not exceed the height of the limiting sleeve can be directly tested through the effect of the limiting sleeve, and the situation that the springs transversely displace in the compression process is avoided;

2. the positions of the connecting seat and the fixing seat can be adjusted through the mounting base connected through the bolt, when the spring needs to be subjected to tensile test, the mounting base can be moved until the mounting base is contacted with the other side of the groove, then the spring can be fixed through the bolt, the compression sleeve is taken down under the action of the threads, two ends of the spring are respectively hung on the hanging rod and the hanging ring, the tensile test can be performed, and meanwhile, the tensile distance of the spring is convenient to regulate and control through matching with the scale marks;

3. through the magnetic ring of connecting seat and stop collar side, can conveniently dismantle the stop collar, make things convenient for personnel to detect the back, take out the spring, simultaneously through the support cover on the bar groove of compression sleeve bottom and the pressure sensor, when compressing, can be so that the couple at spring both ends gets into respectively in the compression sleeve supports the cover, then compress the detection again, avoid its couple to influence the compression.

Drawings

FIG. 1 is a schematic view of the overall front sectional structure of the present invention;

FIG. 2 is a schematic view of a top-view connection structure of the base and the mounting base of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 4 is a schematic view of the connection structure of the connection seat, the magnetic ring and the support sleeve of the present invention;

fig. 5 is a schematic diagram of the test of the present invention when the spring is stretched.

In the figure: 1. a fixed mount; 2. a fixing plate; 3. a guide bar; 4. an indicator panel; 5. a connecting rod; 6. hanging a ring; 7. compressing the sleeve; 8. a base; 9. installing a base; 10. a limiting sleeve; 11. a connecting seat; 12. a hanging rod; 13. a fixed seat; 14. a support sleeve; 15. a magnetic ring; 16. a pressure sensor; 17. and (6) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides a spring fatigue test equipment technical scheme:

example one

As shown in figures 1-4, a spring fatigue testing device comprises a fixing frame 1 and a base 8, the fixing frame 1 is welded and fixed on the rear side of the upper end of the base 8, an electric push rod is fixed on the upper end of the fixing frame 1, two groups of guide rods 3 are symmetrically fixed between the inner side of the fixing frame 1 and the base 8, a fixed plate 2 is connected on the guide rods 3 in a sliding manner, a short rod is fixed on the lower end of the fixed plate 2 on the inner side of the guide rods 3, an indicating plate 4 is connected on the short rod in a sliding manner, the fixed plate 2 is positioned on the upper side of the indicating plate 4, a telescopic rod on the lower side of the electric push rod penetrates through the fixing frame 1 and is fixedly connected with the fixed plate 2, five groups of connecting rods 5 are fixed on the lower side of the fixed plate 2 at equal intervals, the connecting rods 5 penetrate through the indicating plate 4 and are connected with a compression sleeve 7 through threads, the compression sleeve 7 is positioned on the lower side of the indicating plate 4, an installation base 9 is movably arranged on the base 8, connection base 9 is fixed with connecting seats 11 at equal intervals, a limiting sleeve 10 is sleeved on the connection seat, a pressure sensor 16 is fixedly embedded on a connecting seat 11, a supporting sleeve 14 is fixedly arranged on the pressure sensor 16, the connecting seat 11 is respectively and correspondingly positioned at the right lower side of a compression sleeve 7, the outer diameter of a connecting rod 5 is smaller than the inner diameter of the compression sleeve 7, an internal thread is processed inside the compression sleeve 7, an external thread is processed on the side surface of the connecting rod 5, a strip-shaped groove is formed at the bottom of the compression sleeve 7, a scale mark is arranged on a guide rod 3 at the left side of a base 8, threads are processed on the upper side surface of a short rod at the inner side of the guide rod 3, a nut is connected on the short rod at the lower side of an indicating plate 4 through the threads, the transverse cross section of the fixing frame 1 at the side of the electric push rod is L-shaped, a controller is fixedly arranged on the fixing frame 1 at the right side of the electric push rod, the controller is electrically connected with the pressure sensor 16 and the electric push rod through leads, the transverse cross section of the connecting seat 11 is convex, magnetic rings 15 are respectively and are fixedly arranged at corresponding positions inside the connecting seat 11 and the limiting sleeve 10, and the two sets of magnetic rings 15 are magnetically connected.

Example two

On the basis of embodiment one, as shown in fig. 1, fig. 2 and fig. 5, a groove 17 is provided on the base 8, the installation base 9 is installed in the groove 17, a plurality of groups of threaded holes are provided inside the groove 17, the installation base 9 is provided with a threaded connection bolt, the bolt passes through the threaded hole corresponding to the screw in the installation base 9, including fixing the fixing seat 13 on the installation base 9 and fixing the suspension ring 6 on the lower side of the connecting rod 5, the fixing seat 13 is arranged on the front side of the installation base 9, and is respectively arranged corresponding to the installation base 9, the U-shaped suspension rod 12 is welded and fixed on the upper end of the fixing seat 13, the position of the installation base 9 is adjusted respectively, the suspension rod 12 is arranged on the lower side of the suspension ring 6, and then the spring is suspended, and the tensile test is convenient.

The working principle is as follows: when the spring tension testing device is used, equipment is connected with electricity, compression testing is carried out on a spring when the spring needs to be tested, the limiting sleeve 10 is located right below the compression sleeve 7, the spring is placed in the limiting sleeve 10, a hook at one end of the spring enters the support sleeve 14 at the moment, then the electric push rod is operated and drives the connecting rod 5 to move downwards, the connecting rod 5 drives the compression sleeve 7 to enter the limiting sleeve 10, the hook at the top of the spring penetrates through the strip-shaped groove to enter the compression, direct contact with the hook of the spring is avoided, compression is influenced, the pressure value can be detected through the pressure sensor 16 at the bottom of the support sleeve 14, signals of the pressure value are transmitted to the controller, detection can be carried out by an assistant person, after detection is completed, the limiting sleeve 10 is taken down, the spring can be taken out, when the spring needs to be stretched, a bolt on the mounting base 9 is taken down, the mounting base 9 is moved until the pressure value is contacted with the other side of the groove 17, the mounting base 9 is fixed through the bolt, the compression sleeve 7 is taken down through the action of threads, two ends of the hanging rod 12 and the hanging ring 6 respectively, the spring tension testing device can be stretched, and the technical specifications of the whole testing device, which are well-known technical contents of the whole technical specifications of the technical book in the field.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spring fatigue test equipment, includes mount (1) and base (8), its characterized in that: the fixed frame (1) is welded and fixed on the rear side of the upper end of the base (8), an electric push rod is fixed at the upper end of the fixed frame (1), two groups of guide rods (3) are symmetrically fixed between the inner side of the fixed frame (1) and the base (8), the guide rod (3) is connected with a fixed plate (2) in a sliding way, the lower end of the fixed plate (2) at the inner side of the guide rod (3) is fixed with a short rod, an indicating plate (4) is connected to the short rod in a sliding manner, the fixing plate (2) is positioned on the upper side of the indicating plate (4), the lower side telescopic rod of the electric push rod passes through the fixed frame (1) and is fixedly connected with the fixed plate (2), five groups of connecting rods (5) are fixed on the lower side of the fixed plate (2) at equal intervals, the connecting rod (5) passes through the indicating plate (4) and is connected with a compression sleeve (7) through threads, the compression sleeve (7) is positioned at the lower side of the indicating plate (4), the base (8) is movably provided with a mounting base (9), the upper end of the mounting base (9) is fixed with connecting seats (11) at equal intervals, a limiting sleeve (10) is sleeved on the connecting seat (11), a pressure sensor (16) is embedded and fixed on the connecting seat (11), a supporting sleeve (14) is fixed on the pressure sensor (16), the connecting seats (11) are respectively and correspondingly positioned at the right lower sides of the compression sleeves (7).

2. A spring fatigue testing apparatus according to claim 1, wherein: the outer diameter of the connecting rod (5) is smaller than the inner diameter of the compression sleeve (7), an internal thread is machined in the compression sleeve (7), an external thread is machined on the side face of the connecting rod (5), and a strip-shaped groove is formed in the bottom of the compression sleeve (7).

3. A spring fatigue testing apparatus according to claim 1, wherein: the scale marks are arranged on the guide rod (3) on the left side of the base (8), threads are machined on the side face of the short rod on the inner side of the guide rod (3), and a nut is connected to the short rod on the lower side of the indicating plate (4) through the threads.

4. A spring fatigue testing apparatus according to claim 1, wherein: the novel mounting base is characterized in that a groove (17) is formed in the base (8), the mounting base (9) is mounted in the groove (17), a plurality of groups of threaded holes are formed in the groove (17), the mounting base (9) is connected with bolts through threads, and the bolts penetrate through the threaded holes formed in the mounting base (9) and screwed into the corresponding threaded holes.

5. A spring fatigue testing apparatus according to claim 1, wherein: the side view cross section of the fixing frame (1) is L-shaped, a controller is fixed on the fixing frame (1) on the right side of the electric push rod, and the controller is electrically connected with the pressure sensor (16) and the electric push rod through a conducting wire.

6. The spring fatigue testing device according to claim 1, comprising a fixed seat (13) fixed on the mounting base (9) and a hanging ring (6) fixed on the lower side of the connecting rod (5), wherein the fixed seat (13) is arranged right in front of the mounting base (9) and respectively arranged corresponding to the mounting base (9), and a U-shaped hanging rod (12) is welded and fixed on the upper end of the fixed seat (13).

7. The spring fatigue testing device as claimed in claim 1, wherein the connecting seat (11) has a convex cross section in front view, the magnetic rings (15) are fixed on the side surface of the connecting seat (11) and the corresponding positions inside the limiting sleeve (10), and the two groups of magnetic rings (15) are magnetically connected.