CN112504858A - Main transformer clamp upper support plate bearing capacity test device - Google Patents
Main transformer clamp upper support plate bearing capacity test device Download PDFInfo
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- CN112504858A CN112504858A CN202011302210.8A CN202011302210A CN112504858A CN 112504858 A CN112504858 A CN 112504858A CN 202011302210 A CN202011302210 A CN 202011302210A CN 112504858 A CN112504858 A CN 112504858A
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- 238000012360 testing method Methods 0.000 title claims abstract description 87
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 23
- 230000004224 protection Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 206010057071 Rectal tenesmus Diseases 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 208000012271 tenesmus Diseases 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a device for testing the bearing capacity of an upper supporting plate of a main transformer clamping piece, which comprises a test box and a test seat, wherein the side wall of the bottom of the test box is provided with a supporting leg, the test seat is arranged below the test box, a lifting bearing plate is slidably arranged in the test box, one side of the top of the test box is provided with a mounting frame, the outer side of the mounting frame is provided with a second hydraulic rod, and the telescopic end of the second hydraulic rod is provided with a push plate; when the condition that the lift bearing plate tenesmus suddenly appears, the lift bearing plate at first contacts with protection mechanism's buffer board, drive compression spring when the telescopic link moves down, the urceolus is impressed through the buffer hole with the inside hydraulic oil of inner tube through the piston, the total area that makes hydraulic oil through the buffer hole through the elastic deformation of spring and the buffer hole of gradual change reduces and increase the throttle effect of hydraulic oil, play the cushioning effect to the lift bearing plate, protect testing arrangement, avoid testing arrangement to damage.
Description
Technical Field
The invention relates to the technical field of iron core processing, in particular to a device for testing the bearing capacity of an upper supporting plate of a clamp of a main transformer.
Background
In the production process of the clamp fittings of the main transformer core, different structural fittings need to be used, and the upper supporting plate needs to ensure that the bearing capacity of the upper supporting plate meets the standard in the use process.
When the bearing capacity of the existing upper supporting plate is tested through a hydraulic device, the bearing weight needs to be adjusted continuously, and the existing testing device cannot realize the loading and unloading operation of the bearing weight and has high operation difficulty; meanwhile, in the test process, once the hydraulic device breaks down, the lifting bearing plate bearing the heavy object can directly collide with the test box, so that the device is damaged.
Disclosure of Invention
The invention solves the problem that the bearing capacity test device of the upper supporting plate of the main transformer clamping piece solves the problem that when the bearing capacity of the existing upper supporting plate is tested through a hydraulic device, the bearing weight needs to be continuously adjusted, the existing test device can not realize the loading and unloading operation of the bearing weight, and the operation difficulty is high; meanwhile, in the test process, once the hydraulic device breaks down, the lifting bearing plate bearing the heavy object can directly collide with the test box, so that the technical problem of damage to the device is solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a main transformer clamp upper supporting plate bearing capacity test device comprises a test box and a test seat, wherein a supporting leg is installed on the side wall of the bottom of the test box, the test seat is installed below the test box, and a lifting bearing plate is installed inside the test box in a sliding mode;
the test box comprises a test box body, a support frame, a second hydraulic rod, a push plate, a weight box, a transmission box, a servo motor, movable plates and a protection mechanism, wherein the support frame is installed on one side of the top of the test box body;
protection mechanism includes urceolus and inner tube, urceolus internally mounted has the inner tube, the spring is installed to the inside bottom side of inner tube, the piston is installed at the spring top, the telescopic link is installed on the piston top side, and the telescopic link top is located the urceolus outside and installs the buffer board, a plurality of backward flow hole has been seted up in the inner tube top outside, a plurality of buffering hole has been seted up in the inner tube middle part and the bottom outside.
Preferably, axle seats are symmetrically installed on two sides of the top of the test box, rotating shafts are installed between the axle seats, gears are installed on the outer sides of two ends of each rotating shaft, a chain belt is installed on the outer side of each gear, a first hydraulic rod is installed on the side wall of the test box, the telescopic end of each first hydraulic rod is connected with one end of the chain belt, and the other end of the chain belt is connected with the lifting bearing plate.
Preferably, slide rails are arranged on the periphery of the inner side of the test box, and the lifting bearing plate is slidably mounted with the slide rails.
Preferably, the bottom of the test box is provided with a through groove, and the bottom side of the lifting bearing plate is provided with a bearing seat.
Preferably, the weight box both sides all are provided with the outer prop, the spout has been seted up to the outer prop inboard, spout internal rotation installs the threaded rod, and threaded rod and fly leaf threaded connection.
Preferably, the output end of the servo motor is located inside the transmission box and provided with a driving tooth, the end part of the threaded rod is located inside the transmission box and provided with a driven tooth, and the driven tooth is meshed with the driving tooth.
Preferably, the diameter of the buffer hole on the outer side of the inner cylinder is gradually reduced from the middle part to the bottom part, and hydraulic oil is filled in the inner cylinder.
Preferably, the specific operation steps of the test device are as follows:
the method comprises the following steps: the upper supporting plate is placed on the test seat, the height of the top side of the lifting bearing plate is parallel to the height of the bottom side of the interior of the weight box, the driving teeth are driven to rotate through the work of the servo motor, the driven teeth in the transmission box are further driven to rotate, the threaded rod rotates in the sliding groove of the outer column, the movable plate is driven to move in the weight box, and a heavy object in the weight box is pushed to the lifting bearing plate;
step two: at the moment, the chain belt is driven to be transmitted on the gear through the extension of the first hydraulic rod, and then the lifting bearing plate is driven to move downwards until the bottom side of the bearing seat is contacted with the upper supporting plate, at the moment, the first hydraulic rod stops working, the weight of a heavy object is completely acted on the upper supporting plate, and the change of the upper supporting plate is observed;
step three: the lifting bearing plate continuously lifts, at the moment, weights in the weight box are gradually stacked on the lifting bearing plate, then the total weight of all the weights on the lifting bearing plate acts on the upper supporting plate and then the change of the upper supporting plate is observed, when the lifting bearing plate suddenly drops, the lifting bearing plate is firstly contacted with a buffer plate of a protection mechanism to drive the telescopic rod to move downwards and compress the spring, hydraulic oil in the inner cylinder is pressed into the outer cylinder through the buffer hole by the piston, the total area of the hydraulic oil passing through the buffer hole is reduced by elastic deformation of the spring and the gradually changed buffer hole to increase the throttling effect of the hydraulic oil, and the buffering effect is achieved on the lifting bearing plate;
step four: after the test finishes, the lift bearing plate rises step by step, drives the push pedal through the second hydraulic stem work on the mounting bracket and removes this moment, with inside heavy object propelling movement to the weight box again.
The invention has the beneficial effects that: the upper supporting plate is placed on a test seat, the height of the top side of the lifting bearing plate is parallel to the height of the bottom side of the interior of the weight box, the driving teeth are driven to rotate through the work of a servo motor, the driven teeth in the transmission box are further driven to rotate, the threaded rod rotates in the sliding groove of the outer column, the movable plate is driven to move in the weight box, a heavy object in the weight box is pushed to the lifting bearing plate, the lifting bearing plate ascends gradually after the test is finished, the push plate is driven to move through the work of a second hydraulic rod on the mounting frame at the moment, the heavy object is pushed to the interior of the weight box again, the loading and unloading operation of the heavy object is automatically realized;
when the condition that the lift bearing plate tenesmus suddenly appears, the lift bearing plate at first contacts with protection mechanism's buffer board, drive compression spring when the telescopic link moves down, the urceolus is impressed through the buffer hole with the inside hydraulic oil of inner tube through the piston, the total area that makes hydraulic oil through the buffer hole through the elastic deformation of spring and the buffer hole of gradual change reduces and increase the throttle effect of hydraulic oil, play the cushioning effect to the lift bearing plate, protect testing arrangement, avoid testing arrangement to damage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall side view of the present invention;
FIG. 3 is a cross-sectional view of the weight box of the present invention;
FIG. 4 is a rear view of the present invention;
fig. 5 is a cross-sectional view of the protective mechanism of the present invention.
Illustration of the drawings:
1. a test chamber; 2. supporting legs; 3. a test seat; 4. lifting the bearing plate; 5. a shaft seat; 6. a rotating shaft; 7. a gear; 8. a chain belt; 9. a first hydraulic lever; 10. a mounting frame; 11. a second hydraulic rod; 12. pushing the plate; 13. a weight box; 14. a transmission case; 15. a servo motor; 16. a driving tooth; 17. a driven tooth; 18. an outer column; 19. a chute; 20. a movable plate; 21. a threaded rod; 22. a load bearing seat; 23. a protection mechanism; 24. an outer cylinder; 25. an inner barrel; 26. a spring; 27. a piston; 28. a telescopic rod; 29. a buffer plate; 30. a return orifice; 31. and a buffer hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific examples are given below.
Referring to fig. 1 to 5, the device for testing the bearing capacity of the upper supporting plate of the clamp of the main transformer comprises a test box 1 and a test base 3, wherein a supporting leg 2 is installed on the side wall of the bottom of the test box 1, the test base 3 is installed below the test box 1, and a lifting bearing plate 4 is installed in the test box 1 in a sliding manner;
a mounting frame 10 is mounted on one side of the top of the test box 1, a second hydraulic rod 11 is mounted on the outer side of the mounting frame 10, a push plate 12 is mounted at the telescopic end of the second hydraulic rod 11, a weight box 13 is mounted on the opposite side of the top of the test box 1, a transmission box 14 is mounted at the outer end of the weight box 13, a servo motor 15 is mounted on the outer side of the transmission box 14, movable plates 20 are slidably mounted in the weight box 13, and protection mechanisms 23 are mounted on the periphery of the bottom side of;
As an embodiment of the invention, shaft seats 5 are symmetrically arranged on two sides of the top of a test box 1, a rotating shaft 6 is rotatably arranged between the shaft seats 5 on the two sides, gears 7 are arranged on the outer sides of two ends of the rotating shaft 6, a chain belt 8 is arranged on the outer side of the gears 7, a first hydraulic rod 9 is arranged on the side wall of the test box 1, the telescopic end of the first hydraulic rod 9 is connected with one end of the chain belt 8, the other end of the chain belt 8 is connected with a lifting bearing plate 4, and the first hydraulic rod 9 is used for driving the chain belt 8 to transmit on the gears 7 in a telescopic mode to further drive the.
As an embodiment of the present invention, slide rails are arranged around the inner side of the test box 1, and the lifting bearing plate 4 is slidably mounted with the slide rails to guide the lifting bearing plate 4.
As an implementation mode of the invention, the bottom of the test box 1 is provided with a through groove, and the bearing seat 22 is arranged at the bottom side of the lifting bearing plate 4, so that the weight of the heavy object of the lifting bearing plate 4 can be conveniently transmitted to the upper supporting plate through the bearing seat 22.
As an embodiment of the present invention, outer columns 18 are disposed on both sides of the weight box 13, sliding grooves 19 are formed in the inner sides of the outer columns 18, a threaded rod 21 is rotatably mounted inside the sliding groove 19, the threaded rod 21 is in threaded connection with a movable plate 20, a driving tooth 16 is mounted at an output end of the servo motor 15 and inside the transmission box 14, a driven tooth 17 is mounted at an end of the threaded rod 21 and inside the transmission box 14, the driven tooth 17 is engaged with the driving tooth 16, the servo motor 15 operates to drive the driving tooth 16 to rotate, and further drive the driven tooth 17 inside the transmission box 14 to rotate, so that the threaded rod 21 rotates in the sliding groove 19 of the outer column 18, and the movable plate 20 is driven to move in the weight box.
In one embodiment of the present invention, the diameter of the buffer holes 31 on the outer side of the inner cylinder 25 gradually decreases from the middle to the bottom, the inner cylinder 25 is filled with hydraulic oil, and the gradually-changing buffer holes 31 reduce the total area of the hydraulic oil passing through the buffer holes 31 to increase the throttling effect of the hydraulic oil.
As an embodiment of the invention, the specific operation steps of the test device are as follows:
the method comprises the following steps: the upper supporting plate is placed on the test seat 3, the height of the top side of the lifting bearing plate 4 is flush with the height of the bottom side inside the weight box 13 at the moment, the servo motor 15 works to drive the driving teeth 16 to rotate, further the driven teeth 17 in the transmission box 14 are driven to rotate, the threaded rod 21 rotates in the sliding groove 19 of the outer column 18, the movable plate 20 is driven to move in the weight box 13, and a heavy object in the weight box 13 is pushed to the lifting bearing plate 4;
step two: at the moment, the chain belt 8 is driven to transmit on the gear 7 through the extension of the first hydraulic rod 9, and then the lifting bearing plate 4 is driven to move downwards until the bottom side of the bearing seat 22 is contacted with the upper supporting plate, at the moment, the first hydraulic rod 9 stops working, the weight of a heavy object is completely acted on the upper supporting plate, and the change of the upper supporting plate is observed;
step three: the lifting bearing plate 4 is lifted continuously, at the moment, the weights in the weight box 13 are stacked on the lifting bearing plate 4 gradually, then the total weight of all the weights on the lifting bearing plate 4 acts on the upper supporting plate and then the change of the upper supporting plate is observed, when the lifting bearing plate 4 suddenly drops, the lifting bearing plate 4 is firstly contacted with the buffer plate 29 of the protection mechanism 23 to drive the telescopic rod 28 to move downwards and compress the spring 26, hydraulic oil in the inner cylinder 25 is pressed into the outer cylinder 24 through the buffer hole 31 through the piston 27, the total area of the hydraulic oil passing through the buffer hole 31 is reduced through the elastic deformation of the spring 26 and the gradually changed buffer hole 31, so that the throttling effect of the hydraulic oil is increased, and the buffering effect is achieved on the lifting bearing plate 4;
step four: after the test is finished, the lifting bearing plate 4 gradually rises, at the moment, the second hydraulic rod 11 on the mounting rack 10 works to drive the push plate 12 to move, and the heavy object is pushed to the interior of the weight box 13 again.
The upper supporting plate is placed on the test seat 3, the height of the top side of the lifting bearing plate 4 is flush with the height of the bottom side inside the weight box 13 at the moment, the servo motor 15 works to drive the driving tooth 16 to rotate, further the driven tooth 17 in the transmission box 14 is driven to rotate, the threaded rod 21 rotates in the sliding groove 19 of the outer column 18, the movable plate 20 is driven to move in the weight box 13, the heavy object in the weight box 13 is pushed to the lifting bearing plate 4, after the test is finished, the lifting bearing plate 4 gradually rises, at the moment, the push plate 12 is driven to move through the second hydraulic rod 11 on the mounting frame 10, the heavy object is pushed to the weight box 13 again, the loading and unloading operation of the heavy object is automatically realized, and the practical operation and use are;
when the condition that the lift bearing plate 4 tenesmus suddenly appears, lift bearing plate 4 at first contacts with buffer board 29 of protection machanism 23, compression spring 26 when driving telescopic link 28 and moving down, the hydraulic oil of inner tube 25 inside through the buffering hole 31 impressing urceolus 24 through piston 27, the total area that makes hydraulic oil through buffering hole 31 through the elastic deformation of spring 26 and gradual change buffering hole 31 reduces and increase the throttle effect of hydraulic oil, play the cushioning effect to lift bearing plate 4, protect testing arrangement, avoid testing arrangement to damage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The device for testing the bearing capacity of the upper supporting plate of the clamping piece of the main transformer is characterized by comprising a test box (1) and a test seat (3), wherein a supporting leg (2) is installed on the side wall of the bottom of the test box (1), the test seat (3) is installed below the test box (1), and a lifting bearing plate (4) is installed in the test box (1) in a sliding mode;
the test box comprises a test box body (1), a mounting frame (10) is mounted on one side of the top of the test box body (1), a second hydraulic rod (11) is mounted on the outer side of the mounting frame (10), a push plate (12) is mounted at the telescopic end of the second hydraulic rod (11), a weight box (13) is mounted on the opposite side of the top of the test box body (1), a transmission box (14) is mounted at the outer end of the weight box (13), a servo motor (15) is mounted on the outer side of the transmission box (14), a movable plate (20) is slidably mounted in the weight box (13), and protection mechanisms (23) are mounted on the periphery;
protection machanism (23) include urceolus (24) and inner tube (25), urceolus (24) internally mounted has inner tube (25), spring (26) are installed to the inside bottom side of inner tube (25), piston (27) are installed at spring (26) top, telescopic link (28) are installed to piston (27) top side, and telescopic link (28) top is located urceolus (24) outside and installs buffer board (29), a plurality of backward flow hole (30) have been seted up in inner tube (25) top outside, a plurality of buffer hole (31) have been seted up in inner tube (25) middle part and the bottom outside.
2. The main transformer clamping piece upper supporting plate bearing capacity test device is characterized in that shaft seats (5) are symmetrically arranged on two sides of the top of the test box (1), a rotating shaft (6) is rotatably arranged between the shaft seats (5) on two sides, gears (7) are arranged on the outer sides of two ends of the rotating shaft (6), chain belts (8) are arranged on the outer sides of the gears (7), a first hydraulic rod (9) is arranged on the side wall of the test box (1), the telescopic end of the first hydraulic rod (9) is connected with one end of each chain belt (8), and the other end of each chain belt (8) is connected with a lifting bearing plate (4).
3. The device for testing the bearing capacity of the upper supporting plate of the main transformer clamp according to claim 1, wherein slide rails are arranged around the inner side of the test box (1), and the lifting bearing plate (4) is slidably mounted with the slide rails.
4. The device for testing the bearing capacity of the upper supporting plate of the main transformer clamp according to claim 1, wherein a through groove is formed in the bottom of the test box (1), and a bearing seat (22) is installed on the bottom side of the lifting bearing plate (4).
5. The main transformer clamp upper supporting plate load-bearing capacity test device as claimed in claim 1, wherein outer columns (18) are arranged on both sides of the weight box (13), sliding grooves (19) are formed in inner sides of the outer columns (18), a threaded rod (21) is rotatably mounted inside the sliding grooves (19), and the threaded rod (21) is in threaded connection with the movable plate (20).
6. The main transformer clamp upper supporting plate bearing capacity test device as claimed in claim 1, wherein a driving tooth (16) is installed at an output end of the servo motor (15) and inside the transmission box (14), a driven tooth (17) is installed at an end of the threaded rod (21) and inside the transmission box (14), and the driven tooth (17) is meshed with the driving tooth (16).
7. The main transformer clamp upper supporting plate bearing capacity test device as claimed in claim 1, wherein the diameter of the buffer hole (31) on the outer side of the inner cylinder (25) is gradually reduced from the middle to the bottom, and the inner part of the inner cylinder (25) is filled with hydraulic oil.
8. The device for testing the load-bearing capacity of the upper supporting plate of the main transformer clamp according to any one of claims 1 to 7, wherein the device comprises the following specific operation steps:
the method comprises the following steps: the upper supporting plate is placed on the test seat (3), the height of the top side of the lifting bearing plate (4) is flush with the height of the bottom side inside the weight box (13), the servo motor (15) works to drive the driving teeth (16) to rotate, further the driven teeth (17) in the transmission box (14) are driven to rotate, the threaded rod (21) is driven to rotate in the sliding groove (19) of the outer column (18), the movable plate (20) is driven to move in the weight box (13), and heavy objects in the weight box (13) are pushed to the lifting bearing plate (4);
step two: at the moment, the first hydraulic rod (9) extends to drive the chain belt (8) to transmit on the gear (7), so that the lifting bearing plate (4) is driven to move downwards until the bottom side of the bearing seat (22) is contacted with the upper supporting plate, at the moment, the first hydraulic rod (9) stops working, the weight of a heavy object is completely acted on the upper supporting plate, and the change of the upper supporting plate is observed;
step three: the lifting bearing plate (4) is lifted continuously, at the moment, weights in the weight box (13) are stacked on the lifting bearing plate (4) step by step, then the total weight of all the weights on the lifting bearing plate (4) acts on the upper supporting plate, the change of the upper supporting plate is observed, when the lifting bearing plate (4) suddenly drops, the lifting bearing plate (4) is firstly contacted with a buffer plate (29) of a protection mechanism (23), a telescopic rod (28) is driven to move downwards while a spring (26) is compressed, hydraulic oil in an inner cylinder (25) is pressed into an outer cylinder (24) through a buffer hole (31) through a piston (27), the total area of the hydraulic oil passing through the buffer hole (31) is reduced through the elastic deformation of the spring (26) and the gradually changed buffer hole (31), so that the throttling effect of the hydraulic oil is increased, and the buffering effect is achieved on the lifting bearing plate (4);
step four: after the test is finished, the lifting bearing plate (4) gradually rises, at the moment, the second hydraulic rod (11) on the mounting rack (10) works to drive the push plate (12) to move, and the heavy object is pushed to the interior of the weight box (13) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302210.8A CN112504858A (en) | 2020-11-19 | 2020-11-19 | Main transformer clamp upper support plate bearing capacity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302210.8A CN112504858A (en) | 2020-11-19 | 2020-11-19 | Main transformer clamp upper support plate bearing capacity test device |
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| Publication Number | Publication Date |
|---|---|
| CN112504858A true CN112504858A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011302210.8A Pending CN112504858A (en) | 2020-11-19 | 2020-11-19 | Main transformer clamp upper support plate bearing capacity test device |
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2020
- 2020-11-19 CN CN202011302210.8A patent/CN112504858A/en active Pending
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| DE602008000488D1 (en) * | 2008-10-25 | 2010-02-11 | Vut V Brne Fakulta Stavebni | Material deformation test stand for the long-term monitoring of deformation properties under constant pressure |
| CN201836287U (en) * | 2010-09-30 | 2011-05-18 | 安徽意通电力设备有限公司 | High-power hydraulic buffer |
| CN103868798A (en) * | 2014-03-24 | 2014-06-18 | 江苏东方印务有限公司 | Compressive tester for cartons |
| CN208503346U (en) * | 2018-06-29 | 2019-02-15 | 萍乡学院 | Electric power material transport trolley damped noise reduction device |
| CN209416828U (en) * | 2018-11-27 | 2019-09-20 | 菲林格尔家居科技股份有限公司 | A kind of floor crushing resistance detection device |
| CN210571433U (en) * | 2019-11-07 | 2020-05-19 | 南京国器智能装备有限公司 | Steering engine load test bench |
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Application publication date: 20210316 |