CN115609991A - Leveling test bed for simulating hydraulic press under different unbalance loading conditions - Google Patents
Leveling test bed for simulating hydraulic press under different unbalance loading conditions Download PDFInfo
- Publication number
- CN115609991A CN115609991A CN202211545468.XA CN202211545468A CN115609991A CN 115609991 A CN115609991 A CN 115609991A CN 202211545468 A CN202211545468 A CN 202211545468A CN 115609991 A CN115609991 A CN 115609991A
- Authority
- CN
- China
- Prior art keywords
- cross beam
- leveling
- unbalance loading
- rack
- jar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0052—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for fluid driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0064—Counterbalancing means for movable press elements
Abstract
The invention relates to the technical field of hydraulic press experimental devices, and discloses a leveling test bed for simulating different unbalance loading working conditions of a hydraulic press, which comprises a fixed support, a lower cross beam, a movable cross beam, an upper cross beam, a main hydraulic cylinder, a leveling cylinder and an unbalance loading cylinder, wherein the lower cross beam is fixedly arranged at the top of the fixed support, the lower cross beam is horizontally arranged, four corners of the top of the lower cross beam are fixedly provided with four stand columns, the stand columns are vertically arranged with the lower cross beam, the upper cross beam is fixedly arranged at the upper ends of the four stand columns, the upper cross beam is horizontally arranged, the movable cross beam is slidably arranged on column walls of the four stand columns, the movable cross beam is positioned between the lower cross beam and the upper cross beam, and the main hydraulic cylinder is vertically and fixedly arranged at the center of the upper cross beam. According to the leveling test bed for simulating the hydraulic machine under different unbalance loading working conditions, the unbalance loading working conditions of the hydraulic machine are simulated in a test bed mode, and the cost required by the hydraulic machine experiment is greatly reduced.
Description
Technical Field
The invention relates to the technical field of hydraulic press experimental devices, in particular to a leveling test bed for simulating hydraulic presses under different unbalance loading working conditions.
Background
In the actual production and operation process of the hydraulic machine, the sliding blocks can be subjected to different force effects under different working conditions to generate unbalance loading, and the condition can possibly cause damage to products and molds in different degrees, so that the hydraulic machine equipment is damaged. At present, aiming at the research of overcoming the unbalance loading problem of a hydraulic machine, a plurality of hydraulic test beds exist on the level of theoretical systems and hydraulic elements, and no system is provided for carrying out system exploration. Among them, passive leveling is the dominant method for leveling against unbalance loading. However, the magnitude and the form of the offset load force are random, and different equipment conditions are different, so that the offset load force cannot be widely applied to the development of the hydraulic machine in actual exploration.
The leveling operation disclosed in the prior art is only modified in the hydraulic system and the hydraulic machine itself to perform leveling control. The development of a reverse unbalance loading system and method for the unbalance loading problem and a test bed for simulating the unbalance loading and leveling of a hydraulic machine under different working conditions are not related. In addition, most of the existing simulation unbalance loading modes are carried out by using finite element analysis, but the precision reliability is poor; the novel machine type test has single working condition, the problem is difficult to correct, and the defects of high manufacturing cost and more consumable materials exist. Therefore, the research and development of unbalance loading simulation and leveling test bed of the hydraulic machine under different working conditions have great significance for accelerating the research and development of hydraulic forming speed and adapting to various hydraulic forming working conditions.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a leveling test bed for simulating different unbalance loading working conditions of a hydraulic machine, and the problems in the background art are solved by building the hydraulic machine test bed.
Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a leveling test bed for simulating different unbalance loading working conditions of a hydraulic machine comprises a fixed support, a lower cross beam, a movable cross beam, an upper cross beam, a main hydraulic cylinder, a leveling cylinder and an unbalance loading cylinder,
the hydraulic cylinder is characterized in that an oil tank assembly is arranged on one side of the fixed support, the lower cross beam is fixedly arranged at the top of the fixed support and horizontally arranged, stand columns are fixedly arranged at four corners of the top of the lower cross beam, the number of the stand columns is four, the stand columns and the lower cross beam are vertically arranged, the upper cross beam is fixedly arranged at the upper ends of the four stand columns, the upper cross beam is horizontally arranged, the movable cross beam is slidably arranged on the column walls of the four stand columns, the movable cross beam is positioned between the lower cross beam and the upper cross beam, the movable cross beam, the lower cross beam and the upper cross beam are arranged in parallel, the main hydraulic cylinder is vertically and fixedly arranged at the center of the upper cross beam, and the tail end of a piston rod of the main hydraulic cylinder is fixedly connected with the top of the movable cross beam;
many sharp spouts that are parallel to each other are seted up to the upper surface of bottom end rail, the figure of leveling jar is four, four the leveling jar is located the upper surface four corners department of bottom end rail respectively, and four the leveling jar with correspond sharp spout sliding connection, both sides the bottom of sharp spout is equipped with the stop gear that the leveling jar is fixed, the upper surface symmetry of bottom end rail is equipped with two guide rails, two the guide rail with correspond sharp spout sliding connection, and the inside of guide rail is equipped with screw drive mechanism, the figure of unbalance loading jar is two, two the unbalance loading jar sets up respectively on screw drive mechanism, two the unbalance loading jar is the diagonal angle and arranges wherein two the adjacent limit of leveling jar, the terminal piston rod end of leveling jar and the terminal supporting flange that all fixes of piston rod of unbalance loading jar.
In a preferred embodiment, two first T-shaped sliding blocks are symmetrically and fixedly arranged at the bottom of the leveling cylinder, and the first T-shaped sliding blocks are arranged in a sliding fit manner corresponding to the linear sliding grooves.
In a preferred embodiment, the limiting mechanism includes a moving plate, a first rack and a second rack, cavities are respectively formed in two sides of the interior of the lower cross beam, the moving plate is horizontally located in the cavities, the first rack is symmetrically and fixedly arranged on the upper surface of the moving plate, the upper end of the first rack extends into the linear sliding groove, the second rack is fixedly arranged at the bottom of the first T-shaped slider, the first rack and the second rack are meshed, the first rack is a long rack, the second rack is a short rack, two springs are symmetrically and fixedly arranged at the bottom of the moving plate, the lower ends of the two springs are fixedly connected with the bottom of the cavities, energizing magnets are fixedly arranged at the bottoms of the cavities, a moving block is fixedly arranged at the bottom of the moving plate, and the moving block and the energizing magnets are arranged in a position alignment mode.
In a preferred embodiment, two second T-shaped sliding blocks are symmetrically and fixedly arranged at the bottom of the guide rail, and the second T-shaped sliding blocks are arranged in a sliding fit with the corresponding linear sliding grooves.
In a preferred embodiment, the screw transmission mechanism comprises a screw seat arranged inside the guide rail in a sliding manner, a screw is arranged inside the guide rail in a rotating manner, the screw seat is arranged on the rod wall of the screw in a threaded manner, the bottom of the unbalance loading cylinder is fixedly arranged at the top of the screw seat, motor supports are arranged on two sides of each fixing support, a motor is fixedly arranged at the top of each motor support, and the output end of each motor is fixedly connected with one end of the screw.
In a preferred embodiment, guide pillars are fixedly arranged at four corners of the edge of the movable cross beam, opposite-polarity guide sleeves are fixedly arranged inside the four guide pillars, and the opposite-polarity guide sleeves are slidably arranged on the column walls of the upright columns.
In a preferred embodiment, two ends of each of the four upright posts are provided with external threads, and two ends of each of the four upright posts respectively penetrate through the lower cross beam and the upper cross beam and are fixedly connected through nuts.
In a preferred embodiment, the outer wall center of the main hydraulic cylinder and the tail end of the piston rod are both fixedly provided with mounting flanges, and the center of the upper cross beam and the center of the movable cross beam are both provided with mounting holes connected with the mounting flanges.
Advantageous effects
Compared with the prior art, the invention provides a leveling test bed for simulating different unbalance loading working conditions of a hydraulic machine, which has the following beneficial effects:
1. according to the leveling test bed for the simulation hydraulic machine under different unbalance loading working conditions, through the lower cross beam, the movable cross beam, the upper cross beam and the main hydraulic cylinder, when the main hydraulic cylinder extends out, the movable cross beam can be pushed to move downwards along the stand column, so that the movable cross beam moves downwards to the position of the support flange on the unbalance loading cylinder, and under the action of the main hydraulic cylinder and the unbalance loading cylinder, because the unbalance loading cylinder and the leveling cylinder are internally provided with the displacement sensors, the displacement sensors can receive pressure signals, convert the signals into digital signals and feed the digital signals back to the industrial personal computer, and the industrial personal computer controls the oil tank assembly.
2. According to the leveling test bed for simulating the hydraulic press under different unbalance loading conditions, the bottoms of the leveling cylinder and the unbalance loading cylinder are arranged inside the linear sliding groove in a sliding mode through the linear sliding groove, the first T-shaped sliding block and the second T-shaped sliding block which are arranged on the lower cross beam, when the movable cross beam acts on the unbalance loading cylinder, the unbalance loading conditions of the main hydraulic cylinder under different working conditions can be simulated through changing the position and the stroke of the unbalance loading cylinder, and meanwhile the leveling cylinder is controlled to act on the movable cross beam to restore the horizontal position of the movable cross beam and ensure secondary test.
3. According to the leveling test bed of the simulation hydraulic machine under different unbalance loading working conditions, the spring can apply upward elastic force to the moving plate through the moving plate, the first rack, the second rack, the spring, the electrified magnet and the moving block which are arranged at the bottom of the leveling cylinder, so that the moving plate drives the first rack to move upwards and is meshed with the second rack at the bottom of the first T-shaped sliding block, the position of the leveling cylinder can be clamped and limited, and the use stability of the leveling cylinder is improved; when the leveling cylinder needs to be moved, the power supply of the electrified magnet is switched on, so that the electrified magnet generates magnetic force and adsorbs the moving block to move downwards, the first rack and the second rack on the moving block can be separated, the clamping limit of the first T-shaped sliding block is relieved, and the internal movement of the bottom linear sliding groove of the leveling cylinder can be guaranteed.
4. According to the leveling test bed for the simulation hydraulic machine under different unbalance loading working conditions, the guide pillar and the movable cross beam are integrated through the guide pillar arranged on the movable cross beam, the special-shaped guide sleeve is arranged in the guide pillar and sleeved on the stand column, the movable cross beam is prevented from inclining in the moving process, the movable cross beam is guaranteed to be perpendicular to the stand column to the greatest extent to realize vertical movement, the situation that the movable cross beam is blocked in the moving process is avoided, meanwhile, abrasion and vibration of the guide pillar on the stand column in the long-term moving process are reduced, and the gap between the guide pillar and the stand column is prevented from being increased.
5. According to the leveling test bed for the simulation hydraulic machine under different unbalance loading working conditions, the motor can drive the lead screw to rotate by controlling the motor to work through the guide rail, the threaded seat, the lead screw, the motor support and the motor, the lead screw can drive the threaded seat to move in the guide rail and drive the unbalance loading cylinder to move, and the precision of the unbalance loading cylinder in the simulation of the working condition of the hydraulic machine can be controlled in real time.
Drawings
FIG. 1 is a schematic structural diagram of a leveling test bed under different unbalance loading conditions of a simulation hydraulic machine provided by the invention;
FIG. 2 is a perspective view of a leveling test bed under different unbalance loading conditions of a simulation hydraulic machine provided by the invention;
FIG. 3 is a top view of the lower cross member of FIG. 1;
FIG. 4 is a schematic structural view of the lower beam of FIG. 1;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
fig. 6 is a schematic structural view of the anisotropic guide sleeve in fig. 2.
In the figure: 1. fixing a bracket; 2. a fuel tank assembly; 3. a lower cross beam; 4. a movable cross beam; 5. an upper cross beam; 6. a master cylinder; 7. a leveling cylinder; 8. a unbalance loading cylinder; 9. a column; 10. a linear chute; 11. a guide rail; 12. a support flange; 13. a first T-shaped slider; 14. moving the plate; 15. a first rack; 16. a second rack; 17. a spring; 18. energizing a magnet; 19. a moving block; 20. a second T-shaped slider; 21. a threaded seat; 22. a lead screw; 23. a motor bracket; 24. a motor; 25. a guide post; 26. an opposite-sex guide sleeve; 27. a nut; 28. and (6) installing a flange.
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.
Referring to fig. 1-6, a leveling test bed for simulating different unbalance loading conditions of a hydraulic machine comprises a fixed support 1, a lower beam 3, a movable beam 4, an upper beam 5, a main hydraulic cylinder 6, a leveling cylinder 7 and an unbalance loading cylinder 8, wherein an oil tank assembly 2 is arranged on one side of the fixed support 1, the lower beam 3 is fixedly arranged at the top of the fixed support 1, the lower beam 3 is horizontally arranged, stand columns 9 are fixedly arranged at four corners of the top of the lower beam 3, the stand columns 9 are four in number, the stand columns 9 are vertically arranged with the lower beam 3, the upper beam 5 is fixedly arranged at the upper ends of the four stand columns 9, the upper beam 5 is horizontally arranged, external threads are arranged at two ends of the four stand columns 9, and two ends of the four stand columns 9 respectively penetrate through the lower beam 3 and the upper beam 5 and are fixedly connected through nuts 27; the movable cross beam 4 is arranged on the column walls of the four upright columns 9 in a sliding mode, the movable cross beam 4 is located between the lower cross beam 3 and the upper cross beam 5, the movable cross beam 4 is arranged in parallel with the lower cross beam 3 and the upper cross beam 5, the main hydraulic cylinder 6 is vertically and fixedly arranged at the center of the upper cross beam 5, the tail end of a piston rod of the main hydraulic cylinder 6 is fixedly connected with the top of the movable cross beam 4, a mounting flange 28 is fixedly arranged at the center of the outer wall of the main hydraulic cylinder 6 and the tail end of the piston rod, and mounting holes connected with the mounting flange 28 are formed in the center of the upper cross beam 5 and the center of the movable cross beam 4.
The upper surface of the lower beam 3 is provided with a plurality of mutually parallel linear sliding chutes 10, the number of the leveling cylinders 7 is four, the four leveling cylinders 7 are respectively positioned at four corners of the upper surface of the lower beam 3, the four leveling cylinders 7 are in sliding connection with the corresponding linear sliding chutes 10, the bottoms of the linear sliding chutes 10 at two sides are provided with limiting mechanisms for fixing the leveling cylinders 7, the upper surface of the lower beam 3 is symmetrically provided with two guide rails 11, the two guide rails 11 are in sliding connection with the corresponding linear sliding chutes 10, the guide rails 11 are internally provided with screw rod transmission mechanisms, the number of the unbalance loading cylinders 8 is two, the two unbalance loading cylinders 8 are respectively arranged on the screw rod transmission mechanisms, two unbalance loading cylinders 8 are diagonally arranged at the adjacent sides of two leveling cylinders 7, the tail ends of piston rods of the leveling cylinders 7 and the tail ends of piston rods of the unbalance loading cylinders 8 are both fixedly provided with a supporting flange 12, the leveling cylinders 7 and the unbalance loading cylinders 8 have the same structure and are cylinder bodies of the same type, oil inlets and oil outlets of the leveling cylinders 7 and the unbalance loading cylinders 8 are both connected with the oil tank assembly 2, an oil circuit of the main hydraulic cylinder 6 is also connected with the oil tank assembly 2, displacement sensors are respectively arranged inside the leveling cylinders 7 and the unbalance loading cylinders 8, the descending speed of each hydraulic cylinder is detected through the displacement sensors, and a detection signal is fed back to a controller, and the controller is arranged in the oil tank assembly 2; when the movable cross beam 4 acts on the unbalance loading cylinder 8, the unbalance loading condition of the main hydraulic cylinder 6 under different working conditions can be simulated by changing the position and the stroke of the unbalance loading cylinder 8, and meanwhile, the leveling cylinder 7 is controlled to act on the movable cross beam 4 to restore the horizontal position of the movable cross beam 4, so that secondary test is ensured.
The bottom of the leveling cylinder 7 is symmetrically and fixedly provided with two first T-shaped sliders 13, the first T-shaped sliders 13 are arranged in sliding fit with corresponding linear sliding grooves 10, the limiting mechanism comprises a moving plate 14, a first rack 15 and a second rack 16, cavities are formed in two sides of the interior of the lower beam 3, the moving plate 14 is horizontally located in the cavities, the first rack 15 is symmetrically and fixedly arranged on the upper surface of the moving plate 14, the upper end of the first rack 15 extends into the linear sliding grooves 10, the second rack 16 is fixedly arranged at the bottom of the first T-shaped sliders 13, the first rack 15 is meshed with the second rack 16, the first rack 15 is a long rack, the second rack 16 is a short rack, the bottom of the moving plate 14 is symmetrically and fixedly provided with two springs 17, the lower ends of the two springs 17 are fixedly connected with the bottoms of the cavities, an electrified magnet 18 is fixedly arranged at the bottom of the moving plate 14, a moving block 19 is fixedly arranged at the bottom of the moving plate 14, the moving block 19 is aligned with the electrified magnet 18, the springs 17 can apply upward elastic force to the moving plate 14, the moving plate can drive the first rack 15 to move upwards and the second T-shaped sliders 13 to increase the meshing stability of the leveling cylinder 7, and the leveling cylinder can be used in a clamping connection with the leveling cylinder.
Two second T-shaped sliding blocks 20 are symmetrically and fixedly arranged at the bottom of the guide rail 11, the second T-shaped sliding blocks 20 are arranged in a sliding fit mode with corresponding linear sliding grooves 10, the screw transmission mechanism comprises a threaded seat 21 arranged inside the guide rail 11 in a sliding mode, a lead screw 22 is arranged inside the guide rail 11 in a rotating mode, the threaded seat 21 is arranged on the rod wall of the lead screw 22 in a threaded mode, the bottom of the unbalance loading cylinder 8 is fixedly installed at the top of the threaded seat 21, motor supports 23 are arranged on two sides of the fixing support 1, a motor 24 is fixedly arranged at the top of each motor support 23, the output end of each motor 24 is fixedly connected with one end of the lead screw 22, each motor 24 can drive the lead screw 22 to rotate, each lead screw 22 can drive the threaded seat 21 to move inside the guide rail 11 and drive the unbalance loading cylinder 8 to move, and the accuracy of the unbalance loading cylinder 8 in the hydraulic press working condition simulation can be controlled in real time.
The edge four corners department of movable cross beam 4 all fixes and is equipped with guide pillar 25, the inside of four guide pillars 25 is all fixed and is equipped with different sex guide pin bushing 26, and different sex guide pin bushing 26 slides and sets up on the column wall of stand 9, special-shaped guide pin bushing 26 is two semicylindrical, inside sets up to concave formula cashew nut column structure, can reduce movable cross beam 4 and remove the process slope, guarantee that movable cross beam 4 can furthest perpendicular to stand 9 and realize reciprocating, avoid it to appear blocking dead situation at the removal in-process.
An electric appliance cabinet is further arranged on one side of the leveling test bed, a control system is arranged in the electric appliance cabinet, the control system adopts a programmable logic controller PLC, oil circuit adjustment of each hydraulic cylinder is achieved by detecting digital signals of the displacement sensor, and the purpose of leveling the movable cross beam 5 can be achieved under different unbalance loading working conditions in a simulated mode.
In summary, in the leveling test bed of the simulated hydraulic machine under different unbalance loading conditions, when in use, the positions of the leveling cylinder 7 and the unbalance loading cylinder 8 are firstly adjusted, so that the first T-shaped slide block 13 at the bottom of the leveling cylinder 7 and the second T-shaped slide block 20 at the bottom of the unbalance loading cylinder 8 move inside the corresponding linear chute 10, when the leveling cylinder 7 is moved, the power supply of the electrified magnet 18 needs to be switched on, the electrified magnet 18 generates magnetic force and adsorbs the moving block 19 to move downwards, the first rack 15 and the second rack 16 on the moving plate 14 can be separated, the clamping limit of the first T-shaped slide block 13 is released at the moment, the internal movement of the linear chute 10 at the bottom of the leveling cylinder 7 can be ensured, and simultaneously the bottom of the guide rail 11 moves inside the linear chute 10 through the second T-shaped slide block 20, then, by controlling the master hydraulic cylinder 6 to work, when the master hydraulic cylinder 6 extends out, the movable cross beam 4 can be pushed to move downwards along the upright post 9, so that the movable cross beam 4 moves downwards to the position of the support flange 12 on the offset load cylinder 8, and meanwhile, under the action of the master hydraulic cylinder 6 and the offset load cylinder 8, because displacement sensors are arranged inside the offset load cylinder 8 and the leveling cylinder 7, the displacement sensors can receive pressure signals and convert the signals into digital signals to be fed back to an industrial personal computer, the industrial personal computer controls the oil tank assembly 2 to provide oil for the inside of the master hydraulic cylinder 6, and meanwhile, by controlling the motor 24 to work, the motor 24 can drive the lead screw 22 to rotate, the lead screw 22 can drive the threaded seat 21 to move inside the guide rail 11 and drive the offset load cylinder 8 to move, and can control the accuracy of the offset load cylinder 8 in real time when the working condition of the hydraulic machine is simulated; in addition, because the guide post 25 on the movable cross beam 4 makes the guide post 25 and the movable cross beam 4 become a whole, and the guide post 25 is internally provided with the special-shaped guide sleeve 26 and is sleeved on the upright post 9, the inclination of the movable cross beam 4 in the moving process is reduced, the movable cross beam 4 can be ensured to move vertically to the upright post 9 to the maximum extent, the situation that the movable cross beam is blocked in the moving process is avoided, meanwhile, the abrasion and the vibration of the guide post on the upright post 9 in the long-term moving process are reduced, and the increase of the gap between the guide post 25 and the upright post 9 is avoided.
It should be noted that the term "comprises/comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a leveling test platform under different unbalance loading operating mode of simulation hydraulic press, includes fixed bolster (1), bottom end rail (3), movable cross beam (4), entablature (5), main hydraulic cylinder (6), leveling jar (7) and unbalance loading jar (8), its characterized in that:
an oil tank assembly (2) is arranged on one side of the fixed support (1), the lower cross beam (3) is fixedly arranged at the top of the fixed support (1), the lower cross beam (3) is horizontally arranged, four corners of the top of the lower cross beam (3) are fixedly provided with stand columns (9), the number of the stand columns (9) is four, the stand columns (9) and the lower cross beam (3) are vertically arranged, the upper cross beam (5) is fixedly arranged at the upper ends of the four stand columns (9), the upper cross beam (5) is horizontally arranged, the movable cross beam (4) is slidably arranged on the column walls of the four stand columns (9), the movable cross beam (4) is located between the lower cross beam (3) and the upper cross beam (5), the movable cross beam (4) is arranged between the lower cross beam (3) and the upper cross beam (5) in parallel, the main hydraulic cylinder (6) is vertically and fixedly arranged at the center of the upper cross beam (5), and the tail end of a piston rod of the main hydraulic cylinder (6) is fixedly connected with the top of the movable cross beam (4);
many straight line spout (10) that are parallel to each other are seted up to the upper surface of bottom end rail (3), the figure of leveling jar (7) is four, four leveling jar (7) are located the upper surface four corners department of bottom end rail (3) respectively, and four leveling jar (7) with correspond straight line spout (10) sliding connection, both sides the bottom of straight line spout (10) is equipped with the stop gear that leveling jar (7) are fixed, the upper surface symmetry of bottom end rail (3) is equipped with two guide rails (11), two guide rail (11) with correspond straight line spout (10) sliding connection, and the inside of guide rail (11) is equipped with screw drive mechanism, the figure of unbalance loading jar (8) is two, two unbalance loading jar (8) set up respectively on screw drive mechanism, two unbalance loading jar (8) are the diagonal angle and arrange wherein two the adjacent side of leveling jar (7), the piston rod end of piston rod end and the piston rod end of carrying unbalance loading jar (8) of leveling jar (7) all fixedly are equipped with support flange (12).
2. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 1, characterized in that: the bottom of the leveling cylinder (7) is symmetrically and fixedly provided with two first T-shaped sliding blocks (13), and the first T-shaped sliding blocks (13) are arranged in a sliding fit mode corresponding to the linear sliding grooves (10).
3. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 2, characterized in that: the limiting mechanism comprises a moving plate (14), a first rack (15) and a second rack (16), cavities are formed in two sides of the inner portion of the lower cross beam (3), the moving plate (14) is horizontally located in the cavities, the first rack (15) is symmetrically and fixedly arranged on the upper surface of the moving plate (14), the upper end of the first rack (15) extends into the linear sliding groove (10), the second rack (16) is fixedly arranged at the bottom of the first T-shaped sliding block (13), the first rack (15) is meshed with the second rack (16), the first rack (15) is a long rack, the second rack (16) is a short rack, two springs (17) are symmetrically and fixedly arranged at the bottom of the moving plate (14), the lower ends of the two springs (17) are fixedly connected with the bottoms of the cavities, an electrifying magnet (18) is fixedly arranged at the bottom of the moving plate (14), and the moving block (19) is aligned with the electrifying magnet (18).
4. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 1, is characterized in that: the bottom of the guide rail (11) is symmetrically and fixedly provided with two second T-shaped sliding blocks (20), and the second T-shaped sliding blocks (20) are arranged in a sliding fit manner corresponding to the linear sliding grooves (10).
5. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 1, is characterized in that: screw drive mechanism sets up screw base (21) inside guide rail (11) including sliding, the inside of guide rail (11) is rotated and is equipped with lead screw (22), screw base (21) screw thread sets up on the pole wall of lead screw (22), the bottom fixed mounting of unbalance loading jar (8) is in the top of screw base (21), the both sides of fixed bolster (1) all are provided with motor support (23), the fixed motor (24) that are equipped with in top of motor support (23), the output of motor (24) and the one end fixed connection of lead screw (22).
6. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 1, characterized in that: guide posts (25) are fixedly arranged at four corners of the edge of the movable cross beam (4), opposite-nature guide sleeves (26) are fixedly arranged inside the four guide posts (25), and the opposite-nature guide sleeves (26) are arranged on the column wall of the upright column (9) in a sliding mode.
7. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 1, characterized in that: the two ends of the four upright posts (9) are provided with external threads, and the two ends of the four upright posts (9) respectively penetrate through the lower cross beam (3) and the upper cross beam (5) and are fixedly connected through nuts (27).
8. The leveling test bed for simulating the hydraulic machine under different unbalance loading conditions as claimed in claim 1, is characterized in that: the outer wall center department of master cylinder (6) is fixed and the terminal all fixed mounting flange (28) that are equipped with of piston rod, the mounting hole of being connected with mounting flange (28) is all seted up in the center department of entablature (5) and the center department of activity crossbeam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211545468.XA CN115609991B (en) | 2022-12-05 | 2022-12-05 | Leveling test bed for simulating hydraulic machine under different unbalance loading working conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211545468.XA CN115609991B (en) | 2022-12-05 | 2022-12-05 | Leveling test bed for simulating hydraulic machine under different unbalance loading working conditions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115609991A true CN115609991A (en) | 2023-01-17 |
| CN115609991B CN115609991B (en) | 2023-03-21 |
Family
ID=84880892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211545468.XA Active CN115609991B (en) | 2022-12-05 | 2022-12-05 | Leveling test bed for simulating hydraulic machine under different unbalance loading working conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115609991B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092981A (en) * | 2007-07-25 | 2007-12-26 | 天津市天锻压力机有限公司 | Anti partial loading oil cylinder in use for large size hydraulic machine |
| CN101284286A (en) * | 2008-05-16 | 2008-10-15 | 江苏江海机床集团有限公司 | Benders for offset load processing |
| CN105479803A (en) * | 2015-11-18 | 2016-04-13 | 合肥合锻机床股份有限公司 | Hydraulic machine loading system and control method thereof |
| CN106696341A (en) * | 2017-03-29 | 2017-05-24 | 福州大学 | Passive type dynamic leveling control system of hydraulic machine and control method thereof |
| CN109203556A (en) * | 2017-07-07 | 2019-01-15 | 博世力士乐（常州）有限公司 | The electro-hydraulic leveling system of the passive type of hydraulic press |
| CN110778569A (en) * | 2019-11-08 | 2020-02-11 | 合肥合锻智能制造股份有限公司 | Anti-unbalance loading blank pressing cylinder device |
| CN114165487A (en) * | 2021-12-16 | 2022-03-11 | 合肥合锻智能制造股份有限公司 | Hydraulic control system for composite material |
| CN114193810A (en) * | 2021-12-15 | 2022-03-18 | 合肥合锻智能制造股份有限公司 | Large split type thick plate end socket forming hydraulic machine with double-driving four-corner leveling function |
| CN114454547A (en) * | 2022-02-14 | 2022-05-10 | 福州大学 | Experiment bench for testing four-corner leveling performance of press and load simulation method |
-
2022
- 2022-12-05 CN CN202211545468.XA patent/CN115609991B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092981A (en) * | 2007-07-25 | 2007-12-26 | 天津市天锻压力机有限公司 | Anti partial loading oil cylinder in use for large size hydraulic machine |
| CN101284286A (en) * | 2008-05-16 | 2008-10-15 | 江苏江海机床集团有限公司 | Benders for offset load processing |
| CN105479803A (en) * | 2015-11-18 | 2016-04-13 | 合肥合锻机床股份有限公司 | Hydraulic machine loading system and control method thereof |
| CN106696341A (en) * | 2017-03-29 | 2017-05-24 | 福州大学 | Passive type dynamic leveling control system of hydraulic machine and control method thereof |
| CN109203556A (en) * | 2017-07-07 | 2019-01-15 | 博世力士乐（常州）有限公司 | The electro-hydraulic leveling system of the passive type of hydraulic press |
| CN110778569A (en) * | 2019-11-08 | 2020-02-11 | 合肥合锻智能制造股份有限公司 | Anti-unbalance loading blank pressing cylinder device |
| CN114193810A (en) * | 2021-12-15 | 2022-03-18 | 合肥合锻智能制造股份有限公司 | Large split type thick plate end socket forming hydraulic machine with double-driving four-corner leveling function |
| CN114165487A (en) * | 2021-12-16 | 2022-03-11 | 合肥合锻智能制造股份有限公司 | Hydraulic control system for composite material |
| CN114454547A (en) * | 2022-02-14 | 2022-05-10 | 福州大学 | Experiment bench for testing four-corner leveling performance of press and load simulation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115609991B (en) | 2023-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110108852B (en) | Loading-controllable and size-adjustable analog simulation test device | |
| CN103009073A (en) | Automatic intermittent cycle worktable | |
| CN109760799A (en) | The intelligent moulding bed system built towards boat segmental | |
| CN104197856A (en) | In-place surface topography detection workbench | |
| CN116871615B (en) | Large taper mechanism with balance adjusting function | |
| CN203110533U (en) | Marking machine | |
| CN109592600A (en) | Large-scale heavy duty supports jacking system | |
| CN110142591B (en) | Bearing double-face capping machine and capping method thereof | |
| CN103969123A (en) | Combined structural test loading device | |
| CN115609991B (en) | Leveling test bed for simulating hydraulic machine under different unbalance loading working conditions | |
| CN216506420U (en) | High-pressure intermediate head production mould | |
| CN100348342C (en) | Large-scale digit-controlled hydraulic pressure straightener main frame | |
| CN202498666U (en) | Intelligent dual-die hydraulic tire vulcanizer | |
| CN103309354A (en) | Test head movement mechanism of keypad test machine | |
| CN113739895A (en) | Adjustable automatic loading and unloading large-mass weight calibration device and calibration method | |
| CN209336111U (en) | A kind of rotation fusion welding machine | |
| CN112109212A (en) | Automatic equipment for machining floor bearing plate assembly for pouring reinforced cement | |
| CN207964479U (en) | Load test system for three-dimensional structure experiment | |
| CN112903481B (en) | Pendulum testing machine | |
| CN107491094B (en) | Method for precisely balancing Z-axis weight in real time | |
| CN105181241A (en) | Adjustable work bench type force loading apparatus and calibration method thereof | |
| CN104390792A (en) | Fixed wall barrier adjusting device and dynamic compensation method thereof | |
| CN201361780Y (en) | Flexible assembled digital fixture device | |
| CN103383323A (en) | Vibration damping device able to freely adjust force transfer column plane relative position | |
| CN208383616U (en) | Multidimensional loading structure experimental rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |