CN109029970B - Instantaneous safety tongs and linear buffer test bed - Google Patents
Instantaneous safety tongs and linear buffer test bed Download PDFInfo
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- CN109029970B CN109029970B CN201811270270.9A CN201811270270A CN109029970B CN 109029970 B CN109029970 B CN 109029970B CN 201811270270 A CN201811270270 A CN 201811270270A CN 109029970 B CN109029970 B CN 109029970B
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- 238000012360 testing method Methods 0.000 title claims abstract description 92
- 239000000872 buffer Substances 0.000 title claims abstract description 43
- 238000006073 displacement reaction Methods 0.000 claims description 53
- 238000005192 partition Methods 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention relates to an instantaneous safety tongs and a linear buffer test bed, and belongs to the technical field of elevator detection. The test bed comprises a machine body frame, a guide rail frame, a lifting frame and a sensor; the machine body frame comprises a jacking hydraulic cylinder, a top beam frame, an upright post, a buffer mounting seat and a base; the lifting frame comprises a lifting frame body, a lifting force sensor mounting seat, a safety tongs action control mechanism and a safety tongs mounting seat; the safety tongs action control mechanism is fixed in the lifting frame body; the top beam frame is connected with the base through four upright posts; the center of the top beam frame is provided with a circular hole for fixing the jacking hydraulic cylinder; the jacking hydraulic cylinder is used for realizing lifting of the lifting frame. The test bed can test the instantaneous safety tongs and the linear buffer generally, conveniently, reliably, accurately and directly on the basis of meeting the requirements of the gauge, and gives test results.
Description
Technical Field
The invention belongs to the technical field of elevator detection, and relates to an instantaneous safety tongs and a linear buffer test bed.
Background
According to the rule of gauge, the type test of the instantaneous safety tongs and the linear buffer is carried out by the test on the similar equipment of the press, and the test is carried out: load graphs of force-displacement, force-deformation (or displacement-deformation), force-compression stroke and the like; and then determining the application range of the technical parameters related to the bearing capacity of the tested part according to a specified calculation processing mode through the graphs.
However, the current general-purpose pressure testing machine has limited testing space and stroke, and it is difficult to directly assemble the two components to the current general-purpose pressure testing machine for testing. Therefore, the invention provides the test bed, which fully considers that the test bed can test the instantaneous safety tongs and the linear buffer universally, conveniently, reliably, accurately and directly on the basis of meeting the requirements of the gauge and gives test results.
Disclosure of Invention
In view of the above, the present invention aims to provide an instantaneous safety tongs and a linear buffer test stand, which can test the instantaneous safety tongs and the linear buffer and give test results in a universal, convenient, reliable, accurate and direct way on the basis of meeting the requirements of the gauge.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an instantaneous safety tongs and linear buffer test bed comprises a machine body frame (1), a guide rail frame (2), a lifting frame (3) and a sensor (4); the machine body frame (1) comprises a jacking hydraulic cylinder (11), a top beam frame (12), an upright post (13), a buffer mounting seat (14) and a base (15); the lifting frame (3) comprises a lifting frame body, a lifting and force sensor mounting seat (32), a safety tongs action control mechanism (33) and a safety tongs mounting seat (34); the safety gear action control mechanism (33) is fixed in the lifting frame body;
the sensor (4) comprises a force sensor and a displacement sensor;
the top beam frame (12) is connected with the base (15) through four upright posts (13); a circular hole is formed in the center of the top beam frame (12) and used for fixing the jacking hydraulic cylinder (11); the jacking hydraulic cylinder (11) is used for realizing lifting of the lifting frame (3);
one end of the guide rail frame (2) is connected with the top beam frame (12), and a shaft type force sensor is arranged at the joint and used for testing the thrust born by the safety tongs;
an end face force sensor is arranged between a piston rod of the jacking hydraulic cylinder (11) and the lifting frame (3) and used for testing the thrust born by the buffer;
a displacement sensor is arranged between the lifting frame (3) and the top beam frame (12) and is used for testing the maximum displacement of the safety tongs or the buffer during working.
Further, the lifting frame body comprises two rectangular plates (311), four hollow cylinder barrels (312), two long partition plates (313), four short partition plates (314) and a fixing piece (315);
the two rectangular plates (311) are connected through four hollow cylinder barrels (312); the four short separation plates (314) which are parallel to each other are perpendicular to the two long separation plates (313) which are parallel to each other, and are perpendicular to the rectangular plate (311); the rectangular plates (311) extend along the direction of the long partition plates (313) within the interval width of the long partition plates, wherein one short plate extends to the position of the connecting shaft (338), and the other long plate extends to the length same as the length of the long partition plates (313);
round holes are formed at two ends of the two long partition plates (313) and used for fixing a connecting shaft (338) of the safety tongs action control mechanism (33);
the fixing piece (315) is arranged on the front surface of the rectangular plate and is used for fixing a rotating shaft (333) of the safety gear action control mechanism (33);
the jacking and force sensor mounting seat (32) is arranged at the center of the rectangular plate;
the safety tongs mounting seat (34) is arranged on the bottom surface of the lifting frame body and is positioned at the extending position of the rectangular plate (311).
Further, the safety gear action control mechanism (33) comprises a control handle (331), a connecting piece (332), a rotating shaft (333), an elliptical connecting piece (334), a connecting rod (335), a fan-shaped connecting piece (336), a rectangular connecting piece (337) and a connecting shaft (338);
two ends of the connecting sheet (332) are respectively connected with one end of the operating handle (331) and one end of the rotating shaft (333) and keep different orientations; the other end of the rotating shaft (333) is connected with the middle part of the elliptical connecting sheet (334) and is vertical to the connecting sheet (332) in space; the two ends of the oval connecting piece (334) are symmetrically connected with a connecting rod (335), and the connecting part can rotate; the other ends of the two connecting rods (335) are connected with fan-shaped connecting pieces (336), and the connecting parts can rotate; the other ends of the two fan-shaped connecting pieces (336) are connected with a connecting shaft (338) and are vertically connected with the fan-shaped connecting pieces (336); two rectangular connecting pieces (337) with a certain distance are connected to the middle of each connecting shaft (338).
Further, a guide rail mounting seat is arranged in the guide rail frame (2) and used for mounting a guide rail which is suitable for the safety tongs; when the safety tongs are clamped on the guide rail and the lifting frame is moved up and down, the thrust of the safety tongs is transmitted to the guide rail frame and the force sensor. .
Further, the buffer mounting seat (14) is arranged at the center of the front surface of the base (15) and is used for mounting buffers with different sizes.
Further, the test method for the test bench to test the buffer comprises the following steps:
1) The displacement is tested in real time through a displacement sensor additionally arranged between the lifting frame and the top beam frame;
lifting action of the lifting frame is realized by jacking the hydraulic cylinder, and the compression stroke required by the test is the displacement of the lifting frame during the compression of the buffer;
2) The thrust born by the buffer is tested in real time through an end face force sensor arranged between a piston rod of the jacking hydraulic cylinder and the lifting frame;
3) From the compression stroke measured in step 1) and the force measured in step 2), we obtain: force-compression stroke test load curve;
4) And (3) performing data processing according to the test load curve and the gauge requirement by using calculation software of the test bed to directly obtain a test result, namely the application range of the technical parameters related to the bearing capacity of the buffer.
Further, the test method for testing the safety tongs by the test bed comprises the following steps:
1) The two safety tongs are respectively arranged on the safety tongs mounting seat, and the actions of the two safety tongs are simultaneously operated through the safety tongs action operating mechanism, namely, the two safety tongs are clamped on the guide rail;
2) When the two safety tongs are clamped on the guide rails to move downwards, the born thrust is transmitted to the guide rail frame and the shaft type force sensor through the guide rails at the two sides respectively to test and transmit data in real time;
3) The displacement is tested in real time through a displacement sensor additionally arranged between the lifting frame and the top beam frame;
lifting action of the lifting frame is realized by jacking the hydraulic cylinder, and displacement required by the test is the displacement of the lifting frame during clamping of the safety tongs;
4) Testing of safety gear lateral displacement variable:
a sensor mounting frame is arranged outside the safety tongs, a laser displacement sensor is respectively arranged at the same horizontal position on two sides of the sensor mounting frame, and the sum of displacement variable amounts measured by the two displacement sensors is a transverse displacement variable of the safety tongs;
5) The thrust measured in the step 2), the displacement measured in the step 3) and the transverse displacement variable measured in the step 4) are obtained by the following steps: force-displacement, force-deformation or displacement-deformation test load curve;
6) And (3) carrying out data processing according to the test load curve and the gauge requirement by using the calculation software of the test bed, and respectively and directly obtaining test results of the two safety tongs, namely the application range of the related technical parameters of the bearing capacity of the safety tongs.
The invention has the beneficial effects that:
the test bed fully considers the structure, assembly and test space of the tested part, and carries out targeted design on the structure model and size on the basis of a general pressure testing machine, and the application range of relevant technical parameters of bearing capacity can be directly obtained by changing the data processing system according to the requirements of the model gauge by utilizing the control and data testing technology of the general pressure testing machine.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the overall structure of a test stand according to the present invention;
FIG. 2 is a schematic view of a frame structure of a machine body according to the present invention;
FIG. 3 is a schematic view of a structure of a lifting frame according to the present invention;
FIG. 4 is a schematic view of the bottom structure of the lifting frame according to the present invention;
FIG. 5 is a schematic view of a safety gear action control mechanism according to the present invention;
FIG. 6 is a schematic view of a track frame according to the present invention;
FIG. 7 is a schematic view of a damper mount according to the present invention;
FIG. 8 is a schematic diagram of a safety gear lateral deflection test;
reference numerals: 1-organism frame, 2-guide rail frame, 3-lifting frame, 4-sensor, 5-safety tongs, 6-buffer, 11-jacking hydraulic cylinder, 12-roof beam frame, 13-stand, 14-buffer mount pad, 15-base, 21-guide rail, 32-jacking and force sensor mount pad, 33-safety tongs action control mechanism, 34-safety tongs mount pad, 311-rectangular plate, 312-cylinder, 313-long baffle, 314-short baffle, 315-fixing piece, 331-control handle, 332-connecting piece, 333-rotation axis, 334-elliptic connecting piece, 335-connecting rod, 336-sector connecting piece, 337-rectangular connecting piece, 338-connecting shaft.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the instantaneous safety tongs and linear buffer test stand of the present invention comprises a machine body frame 1, a guide rail frame 2, a lifting frame 3 and a sensor 4. The sensor 4 includes a force sensor and a displacement sensor.
As shown in fig. 2, the body frame 1 includes a jacking hydraulic cylinder 11, a roof beam frame 12, a column 13, a bumper mount 14, and a base 15.
The top beam frame 12 is connected with the base 15 through four upright posts 13; a circular hole is formed in the center of the top beam frame 12 and used for fixing the jacking hydraulic cylinder 11; the jacking hydraulic cylinder 11 is used for realizing lifting of the lifting frame 3. One end of the guide rail frame 2 is connected with the top beam frame 12, and an axial force sensor is arranged at the joint and used for testing the thrust born by the safety tongs. An end face force sensor is arranged between a piston rod of the jacking hydraulic cylinder 11 and the lifting frame 3 and used for testing thrust born by the buffer. A displacement sensor is arranged between the lifting frame 3 and the top beam frame 12 and is used for testing the maximum displacement of the safety tongs or the buffer during working.
As shown in fig. 3 and 4, the lift frame 3 includes a lift frame body, a lift up force sensor mount 32, a safety gear operation control mechanism 33, and a safety gear mount 34; the safety gear action control mechanism 33 is fixed in the lifting frame body; the lifting frame body comprises two rectangular plates 311, four hollow cylinder barrels 312, two long partition plates 313, four short partition plates 314 and fixing pieces 315.
The two rectangular plates 311 are connected through four hollow cylindrical drums 312; the four short spacers 314 parallel to each other are perpendicular to the two long spacers 313 parallel to each other, and are perpendicular to the rectangular plate 311; the rectangular plates 311 extend along the long partition 313 within the long partition interval width, wherein one short plate extends to the position of the connecting shaft 338, and the other long plate extends to the same length as the long partition 313; round holes are formed at two ends of the two long partition plates 313 and used for fixing a connecting shaft 338 of the safety gear action control mechanism 33; the fixing member 315 is mounted on the front surface of the rectangular plate, and is used for fixing a rotating shaft 333 of the safety gear action control mechanism 33), and the jacking and force sensor mounting seat 32 is arranged at the center of the rectangular plate; the safety gear mounting seat 34 is arranged on the bottom surface of the lifting frame body and is positioned at the extending position of the rectangular plate 311.
As shown in fig. 5, the safety gear operation control mechanism 33 includes a control handle 331, a link 332, a rotation shaft 333, an elliptical link 334, a connecting rod 335, a fan-shaped link 336, a rectangular link 337, and a connecting shaft 338.
The two ends of the connecting sheet 332 are respectively connected with one end of the operating handle 331 and one end of the rotating shaft 333, and keep different orientations; the other end of the rotating shaft 333 is connected with the middle part of the oval connecting sheet 334 and is vertical to the connecting sheet 332 in space; the two ends of the oval connecting piece 334 are symmetrically connected with a connecting rod 335, and the connecting part can rotate; the other ends of the two connecting rods 335 are connected with fan-shaped connecting pieces 336, and the connecting parts can rotate; the other ends of the two fan-shaped connecting pieces 336 are connected with a connecting shaft 338 and are vertically connected with the fan-shaped connecting pieces 336; two rectangular connecting pieces 337 with a certain distance are connected to the middle of each connecting shaft 338.
As shown in fig. 6, a guide rail mounting seat is arranged in the guide rail frame 2 and is used for mounting a guide rail which is suitable for the safety tongs; when the safety tongs are clamped on the guide rail and the lifting frame is moved up and down, the thrust of the safety tongs is transmitted to the guide rail frame and the force sensor.
As shown in fig. 7, a damper mounting seat 14 is provided at a front center position of the base 15 for mounting dampers of different sizes.
The test bed is used for a data test method:
(1) The test method for testing the buffer comprises the following steps:
1) The displacement is tested in real time through a displacement sensor additionally arranged between the lifting frame and the top beam frame;
lifting action of the lifting frame is realized by jacking the hydraulic cylinder, and compression stroke required by the test is the displacement of the lifting frame during the compression of the buffer;
2) The thrust born by the buffer is tested in real time through an end face force sensor arranged between a piston rod of the jacking hydraulic cylinder and the lifting frame;
3) From the compression stroke measured in step 1) and the force measured in step 2), we obtain: force-compression stroke test load curve;
4) And (3) performing data processing according to the test load curve and the gauge requirement by using calculation software of the test bed to directly obtain a test result, namely the application range of the technical parameters related to the bearing capacity of the buffer.
(2) The test method for testing the safety tongs comprises the following steps:
1) The two safety tongs are respectively arranged on the safety tongs mounting seat, and the actions of the two safety tongs are simultaneously controlled by the safety tongs action control mechanism, namely the two safety tongs are clamped on the guide rail;
2) When the two safety tongs are clamped on the guide rails to move downwards, the born thrust is transmitted to the guide rail frame and the shaft type force sensor through the guide rails at the two sides respectively to test and transmit data in real time;
3) The displacement is tested in real time through a displacement sensor additionally arranged between the lifting frame and the top beam frame;
lifting action of the lifting frame is realized by jacking the hydraulic cylinder, and displacement required by the test is the displacement of the lifting frame during clamping of the safety tongs;
4) The amount of lateral deformation of the safety gear can be measured in real time to transfer data in the following manner, as shown in fig. 8;
a sensor mounting frame is arranged outside the safety tongs, and a laser displacement sensor is respectively arranged at the same horizontal position on two sides of the sensor mounting frame;
a. the transverse dimension B of the clamp body has the deformation as follows: Δb—data that is desired to be tested and transferred in real time;
b. test dimensions a=a1+a2, the variation of which is: delta A-data which are tested and transmitted by the laser displacement sensor in real time;
c. data relationship: Δb= - Δa, i.e. the amount of lateral deformation of the safety gear is equal to the sum of the displacement variables measured by the laser;
5) The thrust measured in the step 2), the displacement measured in the step 3) and the transverse displacement variable measured in the step 4) are obtained by the following steps: test load curves such as force-displacement, force-deformation (or displacement-deformation);
6) And carrying out data processing according to the test load curve and the gauge requirement by using the calculation software of the test bed, and respectively and directly obtaining test results of the two safety tongs, namely the application range of the related technical parameters of the bearing capacity of the safety tongs.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details of the force receiving member and elements may be made therein without departing from the scope of the invention as defined in the appended claims.
Claims (5)
1. The instantaneous safety tongs and linear buffer test bed is characterized by comprising a machine body frame (1), a guide rail frame (2), a lifting frame (3) and a sensor (4); the machine body frame (1) comprises a jacking hydraulic cylinder (11), a top beam frame (12), an upright post (13), a buffer mounting seat (14) and a base (15); the lifting frame (3) comprises a lifting frame body, a lifting and force sensor mounting seat (32), a safety tongs action control mechanism (33) and a safety tongs mounting seat (34); the safety gear action control mechanism (33) is fixed in the lifting frame body;
the sensor (4) comprises a force sensor and a displacement sensor;
the top beam frame (12) is connected with the base (15) through four upright posts (13); a circular hole is formed in the center of the top beam frame (12) and used for fixing the jacking hydraulic cylinder (11); the jacking hydraulic cylinder (11) is used for realizing lifting of the lifting frame (3);
one end of the guide rail frame (2) is connected with the top beam frame (12), and a force sensor is arranged at the joint and used for testing the thrust born by the safety tongs; a guide rail mounting seat is arranged in the guide rail frame (2) and used for mounting a guide rail which is suitable for the safety tongs; when the safety tongs are clamped on the guide rail and the lifting frame is moved up and down, the thrust of the safety tongs is transmitted to the guide rail frame and the force sensor;
a force sensor is arranged between a piston rod of the jacking hydraulic cylinder (11) and the lifting frame (3) and used for testing the thrust born by the buffer;
a displacement sensor is arranged between the lifting frame (3) and the top beam frame (12) and is used for testing the maximum displacement of the safety tongs or the buffer during working;
the safety tongs action control mechanism (33) comprises a control handle (331), a connecting piece (332), a rotating shaft (333), an oval connecting piece (334), a connecting rod (335), a fan-shaped connecting piece (336), a rectangular connecting piece (337) and a connecting shaft (338); two ends of the connecting sheet (332) are respectively connected with one end of the operating handle (331) and one end of the rotating shaft (333) and keep different orientations; the other end of the rotating shaft (333) is connected with the middle part of the elliptical connecting sheet (334) and is vertical to the connecting sheet (332) in space; the two ends of the oval connecting piece (334) are symmetrically connected with a connecting rod (335), and the connecting part can rotate; the other ends of the two connecting rods (335) are connected with fan-shaped connecting pieces (336), and the connecting parts can rotate; the other ends of the two fan-shaped connecting pieces (336) are connected with a connecting shaft (338) and are vertically connected with the fan-shaped connecting pieces (336); two rectangular connecting pieces (337) are connected to the middle of each connecting shaft (338).
2. The instantaneous safety tongs and linear buffer test stand according to claim 1, characterized in that the lifting frame body comprises two rectangular plates (311), four hollow cylindrical drums (312), two long partition plates (313), four short partition plates (314) and a fixing piece (315);
the two rectangular plates (311) are connected through four hollow cylinder barrels (312); the four short separation plates (314) which are parallel to each other are perpendicular to the two long separation plates (313) which are parallel to each other, and are perpendicular to the rectangular plate (311); the rectangular plates (311) extend along the direction of the long partition plates (313) within the interval width of the long partition plates, wherein one short plate extends to the position of the connecting shaft (338), and the other long plate extends to the length same as the length of the long partition plates (313);
round holes are formed at two ends of the two long partition plates (313) and used for fixing a connecting shaft (338) of the safety tongs action control mechanism (33);
the fixing piece (315) is arranged on the front surface of the rectangular plate and is used for fixing a rotating shaft (333) of the safety gear action control mechanism (33);
the jacking and force sensor mounting seat (32) is arranged at the center of the rectangular plate;
the safety tongs mounting seat (34) is arranged on the bottom surface of the lifting frame body and is positioned at the extending position of the rectangular plate (311).
3. The instantaneous safety tongs and linear buffer test stand according to claim 1, characterized in that the buffer mount (14) is arranged in the front central position of the base (15) for mounting buffers of different sizes.
4. The instantaneous safety tongs and linear buffer test stand of claim 1, wherein the test stand is used for testing the buffer by the following test method:
1) The displacement is tested in real time through a displacement sensor additionally arranged between the lifting frame and the top beam frame;
lifting action of the lifting frame is realized by jacking the hydraulic cylinder, and the compression stroke required by the test is the displacement of the lifting frame during the compression of the buffer;
2) The thrust born by the buffer is tested in real time through an end face force sensor arranged between a piston rod of the jacking hydraulic cylinder and the lifting frame;
3) From the compression stroke measured in step 1) and the force measured in step 2), we obtain: force-compression stroke test load curve;
4) And (3) performing data processing according to the test load curve and the gauge requirement by using calculation software of the test bed to directly obtain a test result, namely the application range of the technical parameters related to the bearing capacity of the buffer.
5. The instantaneous safety gear and linear buffer test stand according to claim 1, wherein the test stand is used for testing the safety gear by the following test method:
1) The two safety tongs are respectively arranged on the safety tongs mounting seat, and the actions of the two safety tongs are simultaneously operated through the safety tongs action operating mechanism, namely, the two safety tongs are clamped on the guide rail;
2) When the two safety tongs are clamped on the guide rails to move downwards, the born thrust is transmitted to the guide rail frame and the shaft type force sensor through the guide rails at the two sides respectively to test and transmit data in real time;
3) The displacement is tested in real time through a displacement sensor additionally arranged between the lifting frame and the top beam frame;
lifting action of the lifting frame is realized by jacking the hydraulic cylinder, and displacement required by the test is the displacement of the lifting frame during clamping of the safety tongs;
4) Testing of safety gear lateral displacement variable:
a sensor mounting frame is arranged outside the safety tongs, a laser displacement sensor is respectively arranged at the same horizontal position on two sides of the sensor mounting frame, and the sum of displacement variable amounts measured by the two displacement sensors is a transverse displacement variable of the safety tongs;
5) The thrust measured in the step 2), the displacement measured in the step 3) and the transverse displacement variable measured in the step 4) are obtained by the following steps: force-displacement, force-deformation or displacement-deformation test load curve;
6) And (3) carrying out data processing according to the test load curve and the gauge requirement by using the calculation software of the test bed, and respectively and directly obtaining test results of the two safety tongs, namely the application range of the related technical parameters of the bearing capacity of the safety tongs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811270270.9A CN109029970B (en) | 2018-10-29 | 2018-10-29 | Instantaneous safety tongs and linear buffer test bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811270270.9A CN109029970B (en) | 2018-10-29 | 2018-10-29 | Instantaneous safety tongs and linear buffer test bed |
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| Publication Number | Publication Date |
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| CN109029970A CN109029970A (en) | 2018-12-18 |
| CN109029970B true CN109029970B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811270270.9A Active CN109029970B (en) | 2018-10-29 | 2018-10-29 | Instantaneous safety tongs and linear buffer test bed |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201133867Y (en) * | 2007-12-04 | 2008-10-15 | 南车石家庄车辆有限公司 | Buffer drop hammer tester |
| RU2008141186A (en) * | 2008-10-16 | 2010-04-27 | Оао "Скбим" (Ru) | POWER UNIVERSAL TESTING MACHINE FRAME |
| CN103193126A (en) * | 2013-04-11 | 2013-07-10 | 中国特种设备检测研究院 | Elevator ascending test system |
| CN208999080U (en) * | 2018-10-29 | 2019-06-18 | 重庆市特种设备检测研究院 | A kind of instantaneous safety tongs and linear buffer testing stand |
-
2018
- 2018-10-29 CN CN201811270270.9A patent/CN109029970B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201133867Y (en) * | 2007-12-04 | 2008-10-15 | 南车石家庄车辆有限公司 | Buffer drop hammer tester |
| RU2008141186A (en) * | 2008-10-16 | 2010-04-27 | Оао "Скбим" (Ru) | POWER UNIVERSAL TESTING MACHINE FRAME |
| CN103193126A (en) * | 2013-04-11 | 2013-07-10 | 中国特种设备检测研究院 | Elevator ascending test system |
| CN208999080U (en) * | 2018-10-29 | 2019-06-18 | 重庆市特种设备检测研究院 | A kind of instantaneous safety tongs and linear buffer testing stand |
Non-Patent Citations (1)
| Title |
|---|
| 多行程多倍力液压支架立柱试验台设计与研究;刘欣科;;液压与气动(08);全文 * |
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| CN109029970A (en) | 2018-12-18 |
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