CN214952632U - Permanent compression deformation test fixture - Google Patents
Permanent compression deformation test fixture Download PDFInfo
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- CN214952632U CN214952632U CN202022685415.0U CN202022685415U CN214952632U CN 214952632 U CN214952632 U CN 214952632U CN 202022685415 U CN202022685415 U CN 202022685415U CN 214952632 U CN214952632 U CN 214952632U
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Abstract
The utility model discloses a permanent compression deformation test fixture in the field of permanent deformation monitoring, which comprises a base, a polish rod and a lead screw are fixedly arranged on the upper end surface of the base, two polish rods and two lead screws are respectively arranged on the upper end surface of the base, a press plate is slidably arranged on the polish rod, a communicated slide hole is arranged on the upper end surface and the lower end surface of the press plate, the press plate is slidably connected with the polish rod through the slide hole, a lug is fixedly arranged on the right side of the press plate, the lug is respectively arranged on the left side and the right side of the press plate, a mounting groove is arranged in the middle of the lug, mounting holes are respectively arranged on the upper end surface and the lower end surface of the mounting groove, a threaded ring is rotatably arranged in the mounting groove, a round platform is fixedly arranged on the upper end surface and the lower end surface of the threaded ring, the threaded ring is rotatably connected with the lead screw through the threaded hole, the device can freely control the distance between the press plate and the base, no gasket is needed to be used, and the use is simpler.
Description
Technical Field
The utility model relates to a permanent deformation monitoring field specifically is a permanent compression deformation test fixture.
Background
The permanent compression deformation is the percentage of the deformation size of the test piece to the original size after the test piece is placed for a certain time after stress is eliminated.
In the past when carrying out the permanent compression deformation test, all be through a gasket of cover on the slide bar of base up end, then place the material at the base up end, then directly push down through the clamp plate, come the clearance between control clamp plate lower extreme face and the base up end through the gasket, when measuring the material of different thickness and material, the height that needs the compression is all inequality, so just need prepare the gasket of very many co-altitude, and the gasket still can take place wearing and tearing in the use, if the gasket takes place wearing and tearing will cause the compression height of material and the height difference of settlement, will cause the experiment result to have the gap like this, unusual inconvenient.
Therefore, the utility model provides a permanent compression deformation test fixture to solve the problem of proposing among the above-mentioned background art.
Disclosure of Invention
An object of the utility model is to provide a permanent compression deformation test fixture 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:
a permanent compression deformation test tool comprises a base, a polished rod and a screw rod are fixedly arranged on the upper end surface of the base, two polished rods and two screw rods are arranged on the upper end surface of the base, a pressing plate is arranged on the polished rods in a sliding manner, the upper end surface and the lower end surface of the pressure plate are provided with communicated slide holes, the pressure plate is connected with the polish rod in a sliding way through the slide holes, the right side of the pressure plate is fixedly provided with a convex block which is arranged on the left side and the right side of the pressure plate, the middle of the convex block is provided with an installation groove, the upper end surface and the lower end surface of the installation groove are both provided with installation holes, a threaded ring is rotatably arranged in the mounting groove, round tables are fixedly arranged on the upper end surface and the lower end surface of the threaded ring, the circular truncated cone is rotatably connected with the mounting hole, the upper end face and the lower end face of the threaded ring are provided with communicated threaded holes, and the threaded ring is in threaded connection with the lead screw through the threaded holes.
As a further aspect of the present invention: two polished rods on the upper end surface of the base are installed diagonally, two screw rods are also installed diagonally, and the convex blocks on the left side and the right side of the pressing plate are also installed diagonally, so that the stress of the material is more uniform.
As a further aspect of the present invention: the middle of the pressing plate is provided with a rectangular groove which is communicated with mounting grooves of lugs on the left side and the right side, the lower ends of the thread rings are fixedly provided with chain wheels, the chain wheels at the lower ends of the left thread ring and the right thread ring are in chain transmission, and only one of the two thread rings needs to be rotated, so that the other thread ring can be synchronously rotated.
As a further aspect of the present invention: the surface of the thread ring is provided with friction grains to increase the friction force on the surface of the thread ring.
As a further aspect of the present invention: the arc-shaped grooves are formed in the parts, on the left side and the right side, of the pressing plates, where the convex blocks are installed, so that people can conveniently rotate the thread rings.
As a further aspect of the present invention: the height of the thread ring is the same as that of the mounting groove, the height of the circular truncated cone is the same as that of the mounting hole, no gap exists between the upper end and the lower end of the thread ring and the mounting groove, and the moving precision of the pressing plate is guaranteed.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
the convex blocks are arranged on the left side and the right side of the pressing plate diagonally, the middle of each convex block is provided with the mounting groove, the upper end surface and the lower end surface of each mounting groove are provided with the mounting holes, the mounting thread rings are rotatably mounted in the mounting grooves, the convex blocks are fixedly mounted on the upper end surface and the lower end surface of each thread ring, the convex blocks are rotatably connected with the mounting holes, the upper end surface and the lower end surface of each thread ring are provided with communicated threaded holes, the lower end surfaces of the thread rings are fixedly provided with chain wheels, the chain wheels at the lower ends of the two thread rings are driven by chains, so that the two thread rings can rotate simultaneously by rotating any one of the two thread rings, then the pressing plate can be controlled to move up and down on the screw rods and the polish rods through the threaded groove holes formed in the thread rings and the two screw rods on the upper end surface of the base, the pressing plate can be stopped at any height, so that no gasket is needed to control the height, and the gap between the lower end surface of the pressing plate and the upper end surface of the base is controlled by the gasket in the past, it is necessary to prepare shims of very many different heights and the problem of wear of the shims during use also occurs.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the exploded structure of the present invention;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is a schematic top view of the cross-sectional structure of the present invention.
In the figure: 1-base, 2-polish rod, 3-lead screw, 4-pressing plate, 5-slide hole, 6-lug, 7-mounting groove, 8-mounting hole, 9-thread ring, 10-round table, 11-thread hole, 12-rectangular groove, 13-chain wheel, 14-chain, 15-arc 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. 1-4, in the embodiment of the present invention, a permanent compression deformation testing tool comprises a base 1, a polish rod 2 and a lead screw 3 are fixedly installed on an upper end surface of the base 1, two polish rods 2 and two lead screws 3 are installed on an upper end surface of the base 1, a pressing plate 4 is slidably installed on the polish rod 2, a sliding hole 5 communicating with an upper end surface and a lower end surface of the pressing plate 4 is opened on the upper end surface and the lower end surface of the pressing plate 4, the pressing plate 4 is slidably connected with the polish rod 2 through the sliding hole 5, a bump 6 is fixedly installed on a right side of the pressing plate 4, the bump 6 is installed on both the left side and the right side of the pressing plate 4, an installation groove 7 is opened in the middle of the bump 6, installation holes 8 are opened on both the upper end surface and the lower end surface of the installation groove 7, a threaded ring 9 is rotatably installed in the installation groove 7, a round platform 10 is fixedly installed on both the upper end surface and the lower end surface of the threaded ring 9, the round platform 10 is rotatably connected with the installation holes 8, a threaded hole 11 communicating with the upper end surface and the lower end surface of the threaded ring 9, the threaded ring 9 is in threaded connection with the screw rod 3 through a threaded hole 11.
In the embodiment, the two polish rods 2 on the upper end surface of the base 1 are diagonally arranged, the two screw rods 3 are also diagonally arranged, and the convex blocks 6 on the left side and the right side of the pressing plate 4 are also diagonally arranged, so that the stress of the material is more uniform.
In this embodiment, a rectangular groove 12 is formed in the middle of the pressing plate 4, the rectangular groove 12 is communicated with the mounting grooves 7 of the left and right bumps 6, a chain wheel 13 is fixedly mounted at the lower end of each threaded ring 9, the chain wheels 13 at the lower ends of the left and right threaded rings 9 are driven by a chain 14, and only one of the two threaded rings 9 needs to be rotated, so that the other threaded ring 9 can synchronously rotate.
In this embodiment, the surface of the thread ring 9 is provided with friction lines to increase the friction force on the surface of the thread ring 9.
In this embodiment, the portion of the pressing plate 4 where the bumps 6 are installed on the left and right sides is provided with an arc-shaped groove 15, which is convenient for people to rotate the thread ring 9.
In this embodiment, the height of the thread ring 9 is the same as that of the mounting groove 7, and the height of the circular truncated cone 10 is the same as that of the mounting hole 8, so that no gap exists between the upper end and the lower end of the thread ring 9 and the mounting groove 7, and the moving precision of the pressing plate 4 is ensured.
The utility model discloses a theory of operation is:
before the device is used, the device is simply known, firstly, a material to be tested is placed in the middle of the upper end face of a base 1, then the height of the material at the moment is recorded, then a pressing plate 4 is taken up, a sliding hole 5 formed in the pressing plate 4 is aligned to a polished rod 2 on the upper end face of the base 1, then the pressing plate 4 is placed on the upper end face of the polished rod 2, if the sliding hole 5 of the pressing plate 4 is aligned to the polished rod 2, a threaded hole 11 formed in a threaded ring 9 is also aligned to a screw rod 3 on the upper end face of the base 1, at the moment, any one of the two threaded rings 9 is rotated, a chain wheel 13 at the lower end of the threaded ring 9 drives the other threaded ring 9 to rotate simultaneously through a chain 14, at the moment, the two threaded rings 9 are respectively meshed with two screw rods 3 arranged on the upper end face of the base 1, the pressing plate 4 slowly starts to move downwards on the screw rods 3 and the slide rods, at this time, a vernier caliper can be taken out, an inner measuring claw of the vernier caliper is adjusted to the height of a compressed material, then the lower end of the inner measuring claw of the vernier caliper is aligned with the upper section of the base 1, the whole vernier caliper is perpendicular to the base 1, then the pressing plate 4 continues to move downwards by continuing to rotate the threaded ring 9, finally the threaded ring 9 can be loosened when the lower end face of the pressing plate 4 is in contact with the upper end face of the inner measuring claw of the vernier caliper, the pressing plate 4 is fixed at the current position, the material between the pressing plate 4 and the base 1 is compressed to the designated height, and then when a plurality of materials need to be tested at one time, the material can be placed on the upper end face of the pressing plate 4, and then the material is compressed through the other pressing plate 4.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a permanent compression deformation test fixture, includes base (1), its characterized in that: the polishing device is characterized in that a polished rod (2) and a lead screw (3) are fixedly mounted on the upper end face of the base (1), two polished rods (2) and two lead screws (3) are mounted on the upper end face of the base (1), a pressing plate (4) is slidably mounted on the polished rod (2), the upper end face and the lower end face of the pressing plate (4) are provided with communicated slide holes (5), the pressing plate (4) is slidably connected with the polished rods (2) through the slide holes (5), a lug (6) is fixedly mounted on the right side of the pressing plate (4), the lug (6) is mounted on the left side and the right side of the pressing plate (4), a mounting groove (7) is formed in the middle of the lug (6), mounting holes (8) are formed in the upper end face and the lower end face of the mounting groove (7), a circular truncated cone (9) is rotatably mounted in the mounting groove (7), and a circular cone (10) is fixedly mounted on the upper end face and the lower end face of the circular cone (9), the round platform (10) is rotatably connected with the mounting hole (8), the upper end face and the lower end face of the thread ring (9) are provided with communicated thread holes (11), and the thread ring (9) is in threaded connection with the screw rod (3) through the thread holes (11).
2. The permanent compression deformation test tool according to claim 1, characterized in that: the two polish rods (2) on the upper end face of the base (1) are diagonally arranged, the two screw rods (3) are also diagonally arranged, and the convex blocks (6) on the left side and the right side of the pressing plate (4) are also diagonally arranged.
3. The permanent compression deformation test tool according to claim 1, characterized in that: rectangular channel (12) have been seted up in the middle of clamp plate (4), rectangular channel (12) intercommunication left and right sides mounting groove (7) of lug (6), screw thread circle (9) lower extreme fixed mounting has sprocket (13), and sprocket (13) of controlling two screw thread circles (9) lower extremes pass through chain (14) transmission.
4. The permanent compression deformation test tool according to claim 1, characterized in that: the surface of the thread ring (9) is provided with friction lines.
5. The permanent compression deformation test tool according to claim 1, characterized in that: the pressing plate (4) is provided with arc-shaped grooves (15) at the parts of the left and right sides where the convex blocks (6) are installed.
6. The permanent compression deformation test tool according to claim 1, characterized in that: the height of the thread ring (9) is the same as that of the mounting groove (7), and the height of the circular truncated cone (10) is the same as that of the mounting hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022685415.0U CN214952632U (en) | 2020-11-19 | 2020-11-19 | Permanent compression deformation test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022685415.0U CN214952632U (en) | 2020-11-19 | 2020-11-19 | Permanent compression deformation test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214952632U true CN214952632U (en) | 2021-11-30 |
Family
ID=79035395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022685415.0U Active CN214952632U (en) | 2020-11-19 | 2020-11-19 | Permanent compression deformation test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214952632U (en) |
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2020
- 2020-11-19 CN CN202022685415.0U patent/CN214952632U/en active Active
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