CN215218330U

CN215218330U - Compression permanent deformation test improves device

Info

Publication number: CN215218330U
Application number: CN202120865555.8U
Authority: CN
Inventors: 李斌朋; 卜铄; 张燕; 刘浩然; 蒋普; 任圣东
Original assignee: Suzhou Expert Detection Technology Co ltd
Current assignee: Suzhou Expert Detection Technology Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-12-17
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a compression permanent deformation test improvement device in automobile parts rubber materials compression permanent deformation detection technical field, including the holding down plate, terminal surface four corners department all is equipped with the support column under the holding down plate, the holding down plate top is equipped with the top board, the top board up end evenly is equipped with adjusting bolt, adjusting bolt lower extreme from the top down runs through top board and holding down plate to holding down plate lower part, middle part the thread bush has been cup jointed to the adjusting bolt outside, thread bush fixed connection bearing inner circle inner wall, terminal surface swing joint has the bracing piece under the bearing inner race, the device simple structure, convenient operation effectively prolongs compression permanent deformation test device's life.

Description

Compression permanent deformation test improves device

Technical Field

The utility model relates to an automobile parts rubber materials compression permanent deformation detects technical field, specifically is a compression permanent deformation test improves device.

Background

The compression set test is used for testing that vulcanized rubber or thermoplastic rubber is compressed to a specified height at normal temperature or high temperature according to the requirement of the compression ratio, the vulcanized rubber or thermoplastic rubber is kept for a certain time, then the vulcanized rubber or thermoplastic rubber is compressed out, the sample is recovered to the specified time in a free state, the compression set is obtained by measuring the height of the sample through a specified calculation formula, the conventional compression set device uses bolts and nuts to fix a compression plate, but the device is difficult to disassemble and assemble, the bolts and the nuts are easy to damage, and the tensile force of the sample causes the overlarge friction force of the bolts and the nuts to slide or damage, so that the adjustment cannot be carried out according to the specified compression height of the sample.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compression set test improves device 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 compression permanent deformation test improves device, includes the holding down plate, terminal surface four corners department all is equipped with the support column under the holding down plate, the holding down plate top is equipped with the top board, the top board up end evenly is equipped with adjusting bolt, adjusting bolt lower extreme from the top down runs through top board and holding down plate to holding down plate lower part in proper order, middle part the thread bush has been cup jointed to the adjusting bolt outside, thread bush fixed connection bearing inner circle inner wall, terminal surface swing joint has the bracing piece under the bearing inner race.

Preferably, the lower end face of the bearing outer ring is uniformly provided with threaded holes, the inner cavity of each threaded hole is in threaded connection with a support rod, and the bottom end face of each support rod is attached to the upper end face of the lower pressing plate.

Preferably, the threaded holes and the support rods are four groups, and the threaded holes are arranged in an annular array at the lower end face of the bearing outer ring.

Preferably, the top of each adjusting bolt is provided with a jack, and the diameters of the jacks are equal.

Preferably, the lower end faces of the supporting columns are provided with supporting blocks, and the lower end faces of the supporting blocks are provided with rubber pads.

Preferably, the adjusting bolts are provided with five groups, and the four corners and the center of the upper end surface of the upper pressure plate are provided with the adjusting bolts.

Compared with the prior art, the beneficial effects of the utility model are that: through holding down plate, top board, adjusting bolt and thread bush, guarantee rotatory adjusting bolt, drive the top board and move down, it is spacing through the thread bush, replaced traditional bolt and nut cooperation, guarantee that the tension of stretching of sample can not lead to adjusting bolt to damage increase of service life.

Through thread bush, bearing, screw hole and bracing piece, according to the regulation compression height of sample, take suitable bracing piece support bearing, the bolt cover can not the downstream be guaranteed in the rotatory adjusting bolt, and the thread bush is early the inside rotation of bearing, drives the top board and extrudees downwards, guarantees that the thread bush is suitable not the test of sample.

Drawings

FIG. 1 is a diagram: the structure schematic diagram of the compression permanent deformation test improving device of the utility model;

FIG. 2 is a diagram of: the utility model discloses bearing structure schematic diagram.

In the figure: 1. a lower pressing plate; 2. a support pillar; 3. a support block; 4. an upper pressure plate; 5. a bearing; 6. a jack; 7. adjusting the bolt; 8. a threaded sleeve; 9. a support bar; 10. a threaded bore.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

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.

Example 1

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a compression permanent deformation test improves device, including holding down

plate

1, 1 terminal surface four corners department all is equipped with support column 2 under the holding down plate, 1 top of holding down plate is equipped with

top board

4, 4 up ends of top board evenly are equipped with adjusting

bolt

7, 7 lower extreme from the top down of adjusting bolt run through top board 4 and holding down plate 1 to 1 lower part of holding down plate in proper order, threaded sleeve 8 has been cup jointed to 7 outsides of middle part adjusting bolt, 8 inner circle inner walls of threaded sleeve fixed connection bearing 5, terminal surface swing joint has bracing piece 9 under 5 outer lanes of bearing, support column 2 guarantees that adjusting bolt 7 normally goes up and down, it has the supporting role to guarantee that holding down plate 1 has, the regulation space that has adjusting bolt 7 simultaneously again.

Referring to fig. 2, the lower end face of the outer ring of the bearing 5 is uniformly provided with threaded holes 10, the inner cavity of each threaded hole 10 is in threaded connection with a support rod 9, the bottom end face of each support rod 9 is attached to the upper end face of the lower pressing plate 1, internal threads matched with the threaded holes 10 are arranged outside the upper ends of the support rods 9, the support rods 9 and the threaded holes 10 are guaranteed to be stably connected, disassembly is convenient, and different compression samples are tested conveniently.

Referring to fig. 1, four sets of threaded holes 10 and support rods 9 are provided, the threaded holes 10 are arranged in an annular array at the lower end surface of the outer ring of the bearing 5, and the support rods 9 have the same height, so that the stability of the bearing 5 is ensured, and the threaded sleeve 8 is ensured to be stable and can play a role in limiting.

Referring to fig. 1, the top of the adjusting bolt 7 is provided with insertion holes 6, the diameters of the insertion holes 6 are equal, and the insertion holes 6 penetrate through the outer ring of the top of the adjusting bolt 7 to ensure that the adjusting bolt 7 can be rotated to perform extrusion work by inserting the insertion rod.

Referring to fig. 1, the supporting blocks 3 are disposed on the lower end surfaces of the supporting columns 2, the rubber pads are disposed on the lower end surfaces of the supporting blocks 3, and the anti-skid threads are uniformly disposed on the lower end surfaces of the rubber pads, so as to ensure the stability of the supporting blocks 3, and thus the stability of the supporting columns 2 and the lower pressing plate 1 is ensured.

Example 2

On the basis of embodiment 1, five groups of adjusting bolts 7 are added, please refer to fig. 1, five groups of adjusting bolts 7 are arranged on the adjusting bolts 7, and the four corners and the center of the upper end surface of the upper pressure plate 4 are provided with the adjusting bolts 7, the adjusting bolts 7 at the four corners can ensure the stability of the upper pressure plate 4, and the adjusting bolts 7 at the center further ensure the stability of the upper pressure plate 4 and ensure the uniform compression stress.

Five groups of adjusting bolts 7 are additionally arranged on the basis of the embodiment 1, the adjusting bolts 7 at four corners can ensure the stability of the upper pressure plate 4, the adjusting bolts 7 at the center further ensure the stability of the upper pressure plate 4, the compression stress is ensured to be uniform, and the compression permanent deformation rate of the sample is accurately detected.

The working principle is as follows: during the use, according to the regulation compression height of the sample that needs to detect, select corresponding bracing piece 9, with the rotatory 10 inner chambers that get into the screw hole of bracing piece 9, place the sample between top board 4 and lower pressure plate 1, utilize the inserted bar to insert inside jack 6, rotatory inserted bar, it is rotatory to drive bolt 7, thereby it moves down to drive top board 4, thread bush 8 and bearing 5 have limiting displacement, avoid the too big or undersize of compressive force, keep certain time, then detach the compression, let the sample resume specified time under free state, measure the height of sample, obtain the compression permanent deformation rate through the prescribed calculation formula.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 compression set test improves device, includes holding down plate (1), its characterized in that: support columns (2) are arranged at four corners of the lower end face of the lower pressing plate (1), an upper pressing plate (4) is arranged above the lower pressing plate (1), adjusting bolts (7) are evenly arranged on the upper end face of the upper pressing plate (4), the lower ends of the adjusting bolts (7) sequentially penetrate through the upper pressing plate (4) and the lower pressing plate (1) to the lower portion of the lower pressing plate (1), threaded sleeves (8) are sleeved outside the middle adjusting bolts (7), inner walls of inner rings of bearings (5) are fixedly connected with the threaded sleeves (8), and support rods (9) are movably connected with the lower end faces of outer rings of the bearings (5).

2. The compression set test improvement device of claim 1, wherein: the lower end face of the outer ring of the bearing (5) is uniformly provided with threaded holes (10), the inner cavity of each threaded hole (10) is in threaded connection with a supporting rod (9), and the bottom end face of each supporting rod (9) is attached to the upper end face of the lower pressing plate (1).

3. The compression set test improvement device of claim 2, wherein: four groups of threaded holes (10) and four groups of support rods (9) are arranged, and the threaded holes (10) are arranged in an annular array at the lower end face of the outer ring of the bearing (5).

4. The compression set test improvement device of claim 1, wherein: the top of the adjusting bolt (7) is provided with a jack (6), and the diameters of the jacks (6) are equal.

5. The compression set test improvement device of claim 1, wherein: the lower end faces of the supporting columns (2) are provided with supporting blocks (3), and the lower end faces of the supporting blocks (3) are provided with rubber pads.

6. The compression set test improvement device of claim 1, wherein: the adjusting bolts (7) are provided with five groups, and the four corners and the center of the upper end surface of the upper pressure plate (4) are provided with the adjusting bolts (7).