CN220063670U - Tensile testing machine - Google Patents
Tensile testing machine Download PDFInfo
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- CN220063670U CN220063670U CN202320939320.8U CN202320939320U CN220063670U CN 220063670 U CN220063670 U CN 220063670U CN 202320939320 U CN202320939320 U CN 202320939320U CN 220063670 U CN220063670 U CN 220063670U
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- link
- end cover
- chain
- chain link
- pin plate
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- 238000009864 tensile test Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005259 measurement 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
- 230000003068 static effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a tensile testing machine, which comprises: the hydraulic jack comprises a support base, a hollow hydraulic jack arranged on the support base and a protection support tube arranged on the support base, wherein the protection support tube is detachably connected with a body of the hollow hydraulic jack; the protection stay tube is whole rectangular form, and it with the flexible pipe portion of hollow oil jack is linked together, and first chain link A of round link chain one end is fixed through first anchor clamps on the free end of protection stay tube, the second chain link B on the round link chain passes the protection stay tube with flexible pipe portion is after fixed through the second anchor clamps on the free end of flexible pipe portion, flexible pipe portion extension is in order to right tension part between first chain link A and the second chain link B of round link chain is stretched.
Description
Technical Field
The utility model relates to the technical field of tensile test equipment, in particular to a tensile test machine.
Background
The requirements of the coal mine safety regulations are as follows: the round-link chain must be tested at 2 times its maximum dead load tension before initial use and every 2 years after use, and must not be used when it is found that the crack or permanent elongation exceeds 0.2%.
An existing tensile testing machine such as an adjustable horizontal tensile machine with an authorized bulletin number of CN214150209U can cause damage to an instrument and even cause injury to an operator if a tensile part of a tested object breaks and fragments of the tested object burst and splash when the tensile testing machine is used for tensile testing, so that potential safety hazards exist.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a tension testing machine which can carry out a closed test on a tension part of an object to be tested, and is safe and reliable in the test process.
In order to solve the problems, the utility model adopts the following technical scheme:
a tensile testing machine, comprising:
the hydraulic jack comprises a support base, a hollow hydraulic jack arranged on the support base and a protection support tube arranged on the support base, wherein the protection support tube is detachably connected with a body of the hollow hydraulic jack;
the protection stay tube is whole rectangular form, and it with the flexible pipe portion of hollow oil jack is linked together, and the first chain link of round link chain one end is fixed on the free end of protection stay tube through first anchor clamps, the second chain link on the round link chain pass the protection stay tube with flexible pipe portion is after fixed on the free end of flexible pipe portion through the second anchor clamps, flexible pipe portion extension is in order to right tension part between the first chain link of round link chain and the second chain link is stretched.
As a preferred embodiment of the present utility model,
as a preferred implementation mode, the protection support tube comprises a plurality of seamless steel tubes and a plurality of seamless steel tube flange connections, and the seamless steel tube at one end of the protection support tube is provided with a jack connecting flange corresponding to the body of the hollow oil jack.
As a preferred embodiment, the first clamp comprises a first end cap and a first pin plate;
the first end cover is provided with a first end cover boss corresponding to the pipe orifice of the protection support pipe, the first end cover is arranged on the free end face of the protection support pipe through the first end cover boss, the first end cover and the first end cover boss are provided with a through straight-line-shaped through hole, and a first chain link of the round-link chain protrudes out of the first end cover through the straight-line-shaped through hole;
the first pin plate is inserted into the part of the first chain link protruding out of the first end cover so as to limit the first chain link when the telescopic pipe part stretches.
As a preferred embodiment, an arc-shaped first pin plate clamping hole is formed in the first pin plate corresponding to the first chain link, and the end portion of the first chain link is clamped in the first pin plate clamping hole so as to avoid pin removal of the first pin plate.
As a preferred embodiment, the end face of the first end cap boss is provided with a relief groove for avoiding interference between the first end cap boss and an adjacent chain link.
As a preferred embodiment, the second clamp includes a second end cap and a second pin plate;
a second end cover boss is arranged on the second end cover corresponding to the pipe orifice of the telescopic pipe part, the second end cover is arranged on the end face of the free end of the telescopic pipe part through the second end cover boss, and a through cross-shaped through hole is formed in the second end cover and the second end cover boss and used for the passage of a round-link chain link;
the second chain link protrudes out of the second end cover through the cross-shaped through hole, and the second pin plate is inserted into the protruding portion of the second chain link so as to limit the second chain link when the telescopic pipe portion stretches.
As a preferred embodiment, the second pin plate is provided with a second pin plate clamping groove corresponding to the adjacent link of the second link, so as to yield the adjacent link and avoid the second pin plate from being out of pin.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
according to the utility model, the tension part of the round-link chain is sealed and protected by the protection supporting tube communicated with the telescopic tube part of the hollow oil jack. When the round-link chain breaks, the splashing of fragments can be effectively prevented.
The protective supporting tube can be formed by splicing a plurality of seamless steel tubes, and can adapt to tension tests with different lengths by adjusting the number of the seamless steel tubes, so that the applicability of the protective supporting tube is improved.
The utility model adopts the hollow oil jack to drive the pulling force, has more compact overall structure and small occupied space, and can be flexibly placed in a test place.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the embodiment.
Fig. 2 is a schematic structural view of an embodiment.
Fig. 3 is a schematic structural view of a second jig of the embodiment.
Fig. 4 is a schematic view of the structure of fig. 3 at another angle.
Fig. 5 is a schematic structural view of the first jig of the embodiment.
Fig. 6 is a schematic view of the structure of fig. 5 at another angle.
Wherein: 100. a round-link chain; a first chain link; b a second chain link;
1. a support base; 2. a hollow oil jack; 2-1 a telescopic tube part; 3. a seamless steel pipe; 3-1 steel pipe connecting flanges; 3-2 jack connecting flanges; 4. a first end cap; 4-1 first end cap bosses; 4-2 a straight through hole; 4-3 giving way; 5. a first pin plate; 5-1 a first pin plate clamping hole; 6. a second end cap; 6-1 a second end cap boss; 6-2 cross-shaped through holes; 7. a second pin plate; 7-1 the second pin plate is provided with a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be clearly and completely described in connection with the following specific embodiments.
A tensile testing machine as shown in fig. 1 to 6, comprising:
the hydraulic support comprises a support base 1, a hollow hydraulic jack 2 arranged on the support base 1 and a protection support tube arranged on the support base 1, wherein the protection support tube is detachably connected with a body of the hollow hydraulic jack 2, in the embodiment, the hollow hydraulic jack 2 is connected with a hydraulic pump station, and the stretching tension is provided by the oil pressure provided by the hydraulic pump;
referring to fig. 2, the protective support tube is integrally in a strip shape and is communicated with the telescopic tube portion 2-1 of the hollow hydraulic jack 2, a first chain link a at one end of the round-link chain 100 is fixed on the free end of the protective support tube through a first clamp, a second chain link B on the round-link chain 100 passes through the protective support tube and the telescopic tube portion 2-1 and is fixed on the free end of the telescopic tube portion 2-1 through a second clamp, and the telescopic tube portion 2-1 stretches to stretch a tension portion between the first chain link a and the second chain link B of the round-link chain 100.
Referring to fig. 2, the protection support tube comprises a plurality of seamless steel tubes 3, a plurality of seamless steel tubes 3 are in flange connection, and a jack connecting flange 3-2 is arranged on the seamless steel tube 3 at one end of the protection support tube corresponding to the body of the hollow oil jack 2.
Referring to fig. 5 and 6, the first clamp includes a first end cap 4 and a first pin plate 5. The first end cover 4 is provided with a first end cover boss 4-1 corresponding to the pipe orifice of the protection support pipe, the first end cover 4 is installed on the free end face of the protection support pipe through the first end cover boss 4-1, the first end cover 4 and the first end cover boss 4-1 are provided with a through straight through hole 4-2, and the first chain link A of the round-link chain 100 protrudes out of the first end cover 4 through the straight through hole 4-2. The portion of the first link a protruding from the first end cap 4 is inserted into the first pin plate 5 to limit the first link a when the extension tube portion 2-1 is extended.
Referring to fig. 1 and 5, the end surface of the first end cap boss 4-1 is provided with a relief groove 4-3 for avoiding interference between the first end cap boss 4-1 and an adjacent link.
Referring to fig. 1 and 6, an arc-shaped first pin plate clamping hole 5-1 is formed in the first pin plate 5 corresponding to the first chain link a, and the end of the first chain link a is clamped in the first pin plate clamping hole 5-1 to avoid the pin removal of the first pin plate 5.
Referring to fig. 3 and 4, the second clamp includes a second end cap 6 and a second pin plate 7. The second end cover 6 is provided with a second end cover boss 6-1 corresponding to the pipe orifice of the telescopic pipe part 2-1, the second end cover 6 is installed on the free end face of the telescopic pipe part 2-1 through the second end cover boss 6-1, and the second end cover 6 and the second end cover boss 6-1 are provided with a through cross-shaped through hole 6-2 for the passage of chain links of the round-link chain 100.
Referring to fig. 1 and 3, the second link B protrudes the second end cap 6 through the cross-shaped through hole 6-2, and the second pin plate 7 is inserted into the protruding portion of the second link B to limit the second link B when the extension pipe portion 2-1 is extended. And a second pin plate clamping groove 7-1 is formed on the second pin plate 7 corresponding to the adjacent chain link of the second chain link B and is used for yielding the adjacent chain link and avoiding the pin removal of the second pin plate 7.
In this embodiment, the amount of deformation of the tension portion of the round link chain 100 is obtained by the amount of extension of the extension pipe portion 2-1. The specific measurement mode can be referred to as the following steps: when the hollow hydraulic jack 2 provides 5 tons of tension, the extension L1 of the telescopic pipe part 2-1 is recorded, the tension provided by the hollow hydraulic jack 2 is increased to 10 tons (2 times of static tension) and kept for 20 seconds, and then the hollow hydraulic jack 2 is restored to provide 5 tons of tension, and the difference value between the extension L2 and the extension L1 of the telescopic pipe part 2-1 is recorded to be the permanent extension of the tension part.
Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. A tensile testing machine, comprising:
the hydraulic support comprises a support base (1), a hollow hydraulic jack (2) arranged on the support base (1) and a protection support tube arranged on the support base (1), wherein the protection support tube is detachably connected with a body of the hollow hydraulic jack (2);
the protection stay tube is whole rectangular form, and it is linked together with flexible pipe portion (2-1) of hollow oil jack (2), and first chain link (A) of round-link chain (100) one end is fixed on the free end of protection stay tube through first anchor clamps, second chain link (B) on round-link chain (100) pass protection stay tube with flexible pipe portion (2-1) back is fixed on flexible pipe portion (2-1) free end through the second anchor clamps, flexible pipe portion (2-1) is elongated in order to be right tensile part between first chain link (A) and second chain link (B) of round-link chain (100) is tensile.
2. The tensile testing machine according to claim 1, wherein the protection support tube comprises a plurality of seamless steel tubes (3), the seamless steel tubes (3) are in flange connection, and the seamless steel tubes (3) at one end of the protection support tube are provided with jack connecting flanges (3-2) corresponding to the body of the hollow oil jack (2).
3. A tensile testing machine according to claim 1, characterized in that said first clamp comprises a first end cap (4) and a first pin plate (5);
a first end cover boss (4-1) is arranged on the first end cover (4) corresponding to the pipe orifice of the protection support pipe, the first end cover (4) is arranged on the free end face of the protection support pipe through the first end cover boss (4-1), a through straight through hole (4-2) is formed in the first end cover (4) and the first end cover boss (4-1), and a first chain link (A) of the round-link chain (100) protrudes out of the first end cover (4) through the straight through hole (4-2);
the first pin plate (5) is inserted into the part of the first chain link (A) protruding out of the first end cover (4) so as to limit the first chain link (A) when the telescopic pipe part (2-1) stretches.
4. A tensile testing machine according to claim 3, wherein an arc-shaped first pin plate clamping hole (5-1) is formed in the first pin plate (5) corresponding to the first chain link (a), and the end part of the first chain link (a) is clamped in the first pin plate clamping hole (5-1) to avoid the pin removal of the first pin plate (5).
5. A tensile testing machine according to claim 3, characterized in that the end face of the first end cap boss (4-1) is provided with a relief groove (4-3) for avoiding interference between the first end cap boss (4-1) and an adjacent chain link.
6. A tensile testing machine according to claim 1, characterized in that said second clamp comprises a second end cap (6) and a second pin plate (7);
a second end cover boss (6-1) is arranged on the second end cover (6) corresponding to the pipe orifice of the telescopic pipe part (2-1), the second end cover (6) is arranged on the free end face of the telescopic pipe part (2-1) through the second end cover boss (6-1), and a through cross-shaped through hole (6-2) is formed in the second end cover (6) and the second end cover boss (6-1) and used for the passage of a link of a round-link chain (100);
the second chain link (B) protrudes out of the second end cover (6) through the cross-shaped through hole (6-2), and the second pin plate (7) is inserted into the protruding part of the second chain link (B) so as to limit the second chain link (B) when the telescopic pipe part (2-1) stretches.
7. A tensile testing machine according to claim 6, characterized in that a second pin plate clamping groove (7-1) is formed in the second pin plate (7) corresponding to the adjacent link of the second link (B) for yielding the adjacent link and avoiding the pin-out of the second pin plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320939320.8U CN220063670U (en) | 2023-04-24 | 2023-04-24 | Tensile testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320939320.8U CN220063670U (en) | 2023-04-24 | 2023-04-24 | Tensile testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220063670U true CN220063670U (en) | 2023-11-21 |
Family
ID=88763420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320939320.8U Active CN220063670U (en) | 2023-04-24 | 2023-04-24 | Tensile testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220063670U (en) |
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2023
- 2023-04-24 CN CN202320939320.8U patent/CN220063670U/en active Active
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