CN211206034U - Electro-hydraulic servo universal testing machine - Google Patents
Electro-hydraulic servo universal testing machine Download PDFInfo
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- CN211206034U CN211206034U CN201922157268.7U CN201922157268U CN211206034U CN 211206034 U CN211206034 U CN 211206034U CN 201922157268 U CN201922157268 U CN 201922157268U CN 211206034 U CN211206034 U CN 211206034U
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Abstract
The utility model relates to the field of testing and detecting the mechanical property of building materials, and discloses an electro-hydraulic servo universal testing machine, wherein a test bed and an upper beam are connected into a rigid frame through a light bar, and are ascended and descended through a hydraulic power device; the lower beam is fixed on the screw rod, and the motor is used for position regulation and control; the upper cross beam and the lower cross beam are respectively internally provided with a tension sensor and a pressure sensor, and form a stretching space; the lower beam and the test bed form a compression space, the lower part of the lower beam is provided with a transition plate and a lower pressing plate of a compression clamp, and the top surface of the test bed is provided with a spherical pressing seat and a spherical pressing plate; the upper cross beam and the lower cross beam are respectively provided with an upper chuck and a lower chuck of the tensile clamp, and the upper chuck and the lower chuck are internally provided with clamps. Compared with the prior art, the utility model discloses a test bench, entablature's rational design can realize the tensile or the difunctional of compression to the test piece.
Description
Technical Field
The utility model belongs to building material mechanical properties test detection area relates to a servo universal tester of electricity liquid.
Background
The mechanical property of the building material plays a crucial role in the quality of buildings, and a mechanical property testing device is needed for determining whether the mechanical property of the material is qualified, and a universal testing machine can obtain basic mechanical property indexes of the material through tests such as tensile strength, elongation and elastic modulus of the building material.
Application number is 201820205119.6's utility model discloses an universal tester, including board and actuating mechanism, board fixed surface is connected with the perpendicular to the power screw rod on board surface, the first horizontal pole of power screw rod upper end fixedly connected with, first horizontal pole below is equipped with the second horizontal pole, second horizontal pole sliding connection in power screw rod, first horizontal pole and the corresponding one side difference fixedly connected with fixture of second horizontal pole, the second horizontal pole with actuating mechanism connects, second horizontal pole opposite side fixedly connected with briquetting, board surface with the corresponding position of briquetting is equipped with the bearing seat, and second horizontal pole below sets up briquetting and bearing seat. The utility model with the application number of 201720083740.5 also discloses a universal testing machine, which comprises a base, a stand column, an upper cross beam and a lower cross beam, wherein the upper cross beam and the lower cross beam are both provided with wedge-shaped clamps; the wedge anchor clamps include mount pad, a pair of wedge, are equipped with the wedge groove that supplies the wedge to slide on the mount pad, and wedge one side in opposite directions is equipped with the clamp splice, and clamp splice an organic whole is connected with the slider of dovetail, be equipped with the dovetail that supplies the slider to slide in on the wedge, be equipped with the subassembly of opening and close that is used for blockking the dovetail slide entrance on the wedge. According to the prior art, certain potential safety hazards exist for operators or other field workers in the operation process of workers or equipment, meanwhile, the clamping degree of the clamp to the test piece is lack of necessary detection, and when the service life of the equipment is prolonged, the clamping degree of the clamp to the test piece can be changed, or the clamping mechanism in the clamp is abraded or damaged, the clamp can possibly break away in the test process of the test piece, damage is caused to the equipment, and potential danger exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a servo universal tester of electricity liquid.
An electro-hydraulic servo universal testing machine comprises a base, a test bed, a spherical pressing seat, a spherical pressing plate, a lower pressing plate, a transition plate, an upper cross beam, a lower cross beam, a screw rod, a feed rod, an upper chuck, a lower chuck, an upper clamp, a lower clamp, a motor and a hydraulic power device, and is characterized in that the test bed and the upper cross beam are connected into a rigid frame through the feed rod and ascend and descend through the hydraulic power device; the lower cross beam is fixed on the screw rod, and position regulation and control are carried out through a motor arranged in the base; the upper cross beam and the lower cross beam are respectively internally provided with a tension sensor and a pressure sensor, and form a stretching space; the lower beam and the test bed form a compression space, the lower part of the lower beam is provided with a transition plate and a lower pressing plate of a compression clamp, and the top surface of the test bed is provided with a spherical pressing seat and a spherical pressing plate; the upper cross beam and the lower cross beam are respectively provided with an upper chuck and a lower chuck of the tensile clamp, and the upper chuck and the lower chuck are internally provided with clamps.
Preferably, a hydraulic cylinder and a clamp are arranged in the upper and lower chucks, and the hydraulic cylinder comprises a piston rod and a push-pull plate; the hydraulic cylinder controls the clamping and loosening of the clamp by pushing a piston rod connected with a push-pull plate.
Preferably, a hydraulic sensor is installed in the upper and lower chucks for detecting the hydraulic pressure of the piston rod.
Preferably, the clamp comprises a lining plate and a clamping block, and the lining plate is provided with a dovetail groove; the clamping block is provided with an integrally formed dovetail-shaped sliding block matched with the dovetail groove.
Preferably, the lining plate is a right trapezoid, and an included angle between the oblique waist of the right trapezoid and the oblique side of the chuck is 25-35 degrees.
As a further preference, the angle between the oblique waist of the right trapezoid and the oblique side of the clamping head is 30 °.
Preferably, the top surface of the test bed is provided with an infrared alarm which is aligned with the center of the top surface of the spherical pressing plate. An infrared alarm is arranged at the bottom of the lower cross beam and is aligned to the top surface of the test bed.
Preferably, the servo universal tester of electricity liquid is equipped with the protection casing, the electromagnetic lock is installed to the protection casing, the electromagnetic lock links to each other with the equipment circuit, and during equipment operation, the electromagnetic lock is automatic to be locked, makes the protection casing unable open, and equipment stall, the protection casing can be opened.
As a further preferred option, servo universal tester of electricity liquid is equipped with the protection casing, electromagnetic lock and alarm device are installed to the protection casing, the electromagnetic lock links to each other with alarm device circuit and equipment circuit, and during equipment operation, the electromagnetic lock can't be opened, and during equipment operation the electromagnetic lock is opened, triggers alarm device.
Compared with the prior art, the invention has the following advantages:
(1) compared with the prior art, the utility model discloses a test bench, entablature's rational design can realize the dual function to the tensile or compression of test piece.
(2) Compared with the prior art, the utility model discloses an universal tester is through installing oil pressure sensor in to upper and lower chuck for detect the oil pressure of piston rod, control detects the tight degree of clamp to the clamp of test piece, when failing to press from both sides tightly, alarm device reports to the police.
(3) Compared with the prior art, the utility model discloses a universal testing machine is equipped with the protection casing, and the electromagnetic lock is installed to the protection casing, the electromagnetic lock links to each other with the equipment circuit, and during the equipment operation, the electromagnetic lock is automatic to be tightly closed, makes the protection casing can't open, and equipment shut down, the protection casing can be opened, electromagnetic lock and alarm device are installed to the protection casing, the electromagnetic lock links to each other with alarm device circuit and equipment circuit, and during the equipment operation, the electromagnetic lock can't be opened, and the electromagnetic lock is opened during the equipment operation, triggers alarm device, and realization that can be fine can prevent the maloperation to the protection of staff simultaneously.
Drawings
Fig. 1 is the utility model discloses a servo universal tester's of electricity liquid front view.
Fig. 2 is the utility model discloses a left side view of servo universal tester of electricity liquid.
Fig. 3 is the utility model discloses a servo universal tester anchor clamps of electricity liquid front view.
The reference numbers are as follows: 1 base, 2 test bench, 3 spherical press base, 4 spherical press plate, 5 lower press plate, 6 transition plate, 7 lower beam, 8 lower chuck, 9 upper chuck, 10 upper beam, 11 feed bar, 12 lead screw, 13 push-pull plate; 14 a piston rod; 15 lining board; 16 clamp blocks; 17 test piece.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 and 2, an electro-hydraulic servo universal tester comprises a base 1, a test bed 2, a spherical pressing seat 3, a spherical pressing plate 4, a lower pressing plate 5, a transition plate 6, an upper cross beam 10, a lower cross beam 7, a lead screw 12, a feed rod 11, upper and lower chucks 9 and 8, upper and lower clamps, a motor and a hydraulic power device, and is characterized in that the test bed 2 and the upper cross beam 10 are connected into a rigid frame through the feed rod 11 and ascend and descend through the hydraulic power device; the lower cross beam 7 is fixed on a screw rod 12, and position regulation and control are carried out through a motor; the upper cross beam 10 and the lower cross beam 7 are respectively internally provided with a tension sensor and a pressure sensor, and the upper cross beam 10 and the lower cross beam 7 form a stretching space; the lower beam 7 and the test bed 2 form a compression space, the lower part of the lower beam 7 is provided with a transition plate 6 and a lower pressing plate 5 of a compression clamp, and the top surface of the test bed 2 is provided with a spherical pressing seat 3 and a spherical pressing plate 4; the upper cross beam 10 and the lower cross beam 7 are respectively provided with an upper chuck 9 and a lower chuck 8 of the stretching clamp, and the upper chuck 9 and the lower chuck 8 are internally provided with clamps. The hydraulic source mainly comprises a motor, an oil pump, an oil tank, an air cooler, a control valve group, a piston, an oil cylinder and the like. And opening an oil pump control switch, and realizing the ascending and descending of the oil cylinder piston by controlling the servo valve through a computer. The air cooler cools the hydraulic oil to keep the temperature of the hydraulic oil within a certain range. The outer side of the main machine is provided with a protective cover for safety protection and dust prevention. During a tensile test, the upper end of the test piece is clamped by an upper chuck of the control clamp, the lower cross beam is controlled by a motor in the lower cross beam to ascend or descend along the screw rod to adjust the position, and the lower end of the test piece is clamped by a lower chuck of the control clamp. Then, a hydraulic source provides power to control the rising of the oil cylinder piston, so that the rigid frame of the testing machine rises integrally, the lower cross beam keeps the position still, and the tensile force to the test piece is generated; during compression test, a test piece is placed on a spherical pressing plate of a compression clamp, the lower cross beam is controlled to ascend or descend through a motor in the lower cross beam to adjust the position, so that the lower pressing plate is just contacted with the top surface of the test piece, and then power is provided through a hydraulic source to control the ascending of an oil cylinder piston, so that the rigid frame of the testing machine ascends integrally, and pressure is generated on the test piece. This universal tester can realize the test to the tensile and compression of test piece, has improved the utilization ratio of equipment, has saved the cost of equipment.
Above-mentioned universal tester, upper and lower chuck include pneumatic cylinder and anchor clamps: the hydraulic cylinder comprises a piston rod 14 and a push-pull plate 13; the hydraulic cylinder controls the clamping and unclamping of the clamp by pushing a piston rod 14 connected with a push-pull plate 13. And the utility model discloses an oil pressure sensor is installed to universal test machine in the chuck from top to bottom, and whether the chuck pressed from both sides tightly when judging centre gripping test piece 17 through the size of detecting piston oil pressure in the anchor clamps, monitors the chuck and to the tight degree of clamp of test piece, avoids the chuck in the testing process not to press from both sides the breaking away from that tightly leads to the test piece to cause the damage to equipment, and the potential safety hazard that leads to the fact to the personnel. Further preferably, the oil pressure sensor is connected to an alarm device. When the clamping degree is lower than a certain numerical value, the alarm device is triggered, and the operation and the maintenance of the clamping degree of the test piece and the equipment can be reminded to an operator. The above triggering is a conventionally known means, and the present invention is not a protection for the triggering procedure, but a protection for the structure. Preferably, the clamp comprises a lining plate 15 and a clamping block 16, and a dovetail groove is formed in the lining plate; the clamping block is provided with an integrally formed dovetail-shaped sliding block matched with the dovetail groove.
Preferably, the lining plate is a right trapezoid, and an included angle between the oblique waist of the right trapezoid and the oblique side of the chuck is 25-35 degrees. Through the reasonable design to the contained angle, can strengthen the firm degree of welt and chuck, reduce the wearing and tearing to the welt.
Preferably, the inclined waist of the right trapezoid forms an angle of 30 degrees with the inclined edge of the chuck.
Preferably, the top surface of the test bed is provided with an infrared alarm which is aligned with the center of the top surface of the spherical pressing plate, whether a test piece is placed during a compression test is detected, an alarm is given when the test piece is detected to be abnormal, and the phenomenon that the lower pressing plate and the spherical pressing plate are subjected to air pressure due to the fact that the test piece is forgotten to be placed is avoided. An infrared alarm is arranged at the bottom of the lower cross beam and is aligned to the top surface of the test bed.
Preferably, the servo universal tester of electricity liquid is equipped with the protection casing, the electromagnetic lock is installed to the protection casing, the electromagnetic lock links to each other with the equipment circuit, and during equipment operation, the automatic locking of electromagnetic lock makes the protection casing unable open, and equipment stall, the protection casing can be opened. As a further preferred option, servo universal tester of electricity liquid is equipped with the protection casing, electromagnetic lock and alarm device are installed to the protection casing, the electromagnetic lock links to each other with alarm device circuit and equipment circuit, and during equipment operation, the electromagnetic lock can't be opened, and during equipment operation the electromagnetic lock is opened, triggers alarm device.
Compared with the prior art, the invention has the following advantages:
(1) compared with the prior art, the utility model discloses a test bench, entablature's rational design can realize the dual function to the tensile or compression of test piece.
(2) Compared with the prior art, the utility model discloses an universal tester is through installing oil pressure sensor in to upper and lower chuck for detect the oil pressure of piston rod, control detects the tight degree of clamp to the clamp of test piece, when failing to press from both sides tightly, alarm device reports to the police.
(3) Compared with the prior art, the utility model discloses a universal testing machine is equipped with the protection casing, and the electromagnetic lock is installed to the protection casing, the electromagnetic lock links to each other with the equipment circuit, and during the equipment operation, the electromagnetic lock is automatic to be tightly closed, makes the protection casing can't open, and equipment shut down, the protection casing can be opened, electromagnetic lock and alarm device are installed to the protection casing, the electromagnetic lock links to each other with alarm device circuit and equipment circuit, and during the equipment operation, the electromagnetic lock can't be opened, and the electromagnetic lock is opened during the equipment operation, triggers alarm device, and realization that can be fine can prevent the maloperation to the protection of staff simultaneously.
Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (9)
1. An electro-hydraulic servo universal testing machine comprises a base, a test bed, a spherical pressing seat, a spherical pressing plate, a lower pressing plate, a transition plate, an upper cross beam, a lower cross beam, a screw rod, a feed rod, an upper chuck, a lower chuck, an upper clamp, a lower clamp, a motor and a hydraulic power device, and is characterized in that the test bed and the upper cross beam are connected into a rigid frame through the feed rod and ascend and descend through the hydraulic power device; the lower cross beam is fixed on the screw rod, and position regulation and control are carried out through the motor; the upper cross beam and the lower cross beam are respectively internally provided with a tension sensor and a pressure sensor, and form a stretching space; the lower beam and the test bed form a compression space, the lower part of the lower beam is provided with a transition plate and a lower pressing plate of a compression clamp, and the top surface of the test bed is provided with a spherical pressing seat and a spherical pressing plate; the upper cross beam and the lower cross beam are respectively provided with an upper chuck and a lower chuck of the tensile clamp, and the upper chuck and the lower chuck are internally provided with clamps.
2. The electro-hydraulic servo universal testing machine as claimed in claim 1, wherein a hydraulic cylinder and a clamp are arranged in the upper and lower chucks, and the hydraulic cylinder comprises a piston rod and a push-pull plate; the hydraulic cylinder controls the clamping and loosening of the clamp by pushing a piston rod connected with a push-pull plate.
3. The electro-hydraulic servo universal tester as claimed in claim 2, wherein an oil pressure sensor is installed in the upper and lower chucks for detecting the oil pressure of the piston rod.
4. The electro-hydraulic servo universal testing machine as claimed in claim 2 or 3, wherein the fixture comprises a lining plate and a clamping block, and the lining plate is provided with a dovetail groove; the clamping block is provided with an integrally formed dovetail-shaped sliding block matched with the dovetail groove.
5. The electro-hydraulic servo universal tester as claimed in claim 4, wherein the lining plate is a right trapezoid, and an included angle between an oblique waist of the right trapezoid and an oblique side of the chuck is 25-35 °.
6. The electro-hydraulic servo universal tester as claimed in claim 5, wherein the angle between the oblique waist of the right trapezoid and the oblique side of the chuck is 30 °.
7. The electro-hydraulic servo universal tester as claimed in claim 1 or 2, wherein the top surface of the test table is provided with an infrared alarm aligned with the center of the top surface of the spherical pressing plate.
8. The electro-hydraulic servo universal testing machine according to claim 1 or 2, wherein the electro-hydraulic servo universal testing machine is provided with a protective cover, the protective cover is provided with an electromagnetic lock, the electromagnetic lock is connected with a device line, when the device is operated, the electromagnetic lock is automatically locked, so that the protective cover cannot be opened, when the device is stopped, the protective cover can be opened.
9. The electro-hydraulic servo universal testing machine as claimed in claim 8, wherein the protective cover is provided with an electromagnetic lock and an alarm device, the electromagnetic lock is connected with an alarm device circuit and an equipment circuit, when the equipment is in operation, the electromagnetic lock cannot be opened, when the equipment is in operation, the electromagnetic lock is opened to trigger the alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157268.7U CN211206034U (en) | 2019-12-05 | 2019-12-05 | Electro-hydraulic servo universal testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157268.7U CN211206034U (en) | 2019-12-05 | 2019-12-05 | Electro-hydraulic servo universal testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211206034U true CN211206034U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922157268.7U Active CN211206034U (en) | 2019-12-05 | 2019-12-05 | Electro-hydraulic servo universal testing machine |
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| Country | Link |
|---|---|
| CN (1) | CN211206034U (en) |
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2019
- 2019-12-05 CN CN201922157268.7U patent/CN211206034U/en active Active
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