Multi-cylinder synchronous hydraulic cylinder structure

Abstract

The utility model discloses a multi-cylinder synchronous hydraulic cylinder structure which comprises a hydraulic cylinder main body, a liquid inlet, a piston rod I, a liquid outlet and a converging device, the converging device is arranged, and a fixing plate I and a fixing plate II are fastened and mounted on the outer side of the hydraulic cylinder main body through bolts; the oil liquid of the three hydraulic cylinder main bodies is converged through the flow dividing groove, then the pressure brought by the oil liquid passes through the three movable grooves of the flow dividing groove, then the synchronous assembly is subjected to translation adjustment, and after the synchronous assembly makes contact with the baffle, the electric control valve is separated after receiving signal induction; then the oil liquid is discharged by the electric control valve along the left side and the right side of the baffle plate, so that the liquid of the three groups of hydraulic cylinder main bodies is synchronously subjected to flow regulation from a discharge hole in the front end of the electric control valve; and meanwhile, when the hydraulic oil is released, the baffle can be pushed back to the initial position through the spring for resetting.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a multi-cylinder synchronous hydraulic cylinder structure. Background Art

[0002] As the actuator of the hydraulic system, the hydraulic cylinder has the characteristics of simple transmission structure, flexible movement, and the ability to transmit force. It is widely used in engineering machinery. When the hydraulic system is used to output power, the symmetrical external connection devices need to work synchronously. Usually, two independent hydraulic cylinders are used to achieve this, which are connected to the symmetrical external connection devices respectively. However, due to the manufacturing errors of the two hydraulic cylinders themselves, the stroke and installation distance will not be completely consistent. After the hydraulic oil is input, it is difficult to achieve true synchronization, resulting in the symmetrical external connection devices working in an uncoordinated manner.

[0003] For example, publication number CN201120167670.4 discloses a "Hydraulic Cylinder with Synchronous Structural Device", in which the upper cylinder body and the lower cylinder body are fixedly connected via an anti-shear key, thereby achieving synchronous operation of a symmetrical external connection device.

[0004] When multiple groups of hydraulic cylinders are used synchronously, the liquid entering the hydraulic cylinder can be kept at a synchronous frequency through the liquid inlet to squeeze the piston rod outward. However, when the oil is discharged, the different discharge pressures will cause the piston rods of the multiple groups of hydraulic cylinders to reset to different positions, resulting in the liquid outflow points of the multiple groups of hydraulic cylinders being at different frequencies, which is not conducive to the synchronous frequency operation of the multiple groups of hydraulic cylinders. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a multi-cylinder synchronous hydraulic cylinder structure, which solves the above-mentioned problems.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-cylinder synchronized hydraulic cylinder structure, comprising a hydraulic cylinder body, a liquid inlet, a piston rod, a liquid outlet and a merging device, wherein the front end of the hydraulic cylinder body is provided with a liquid inlet and a liquid outlet on the upper and lower sides, a piston rod is installed on the inner side of the top of the hydraulic cylinder body, the hydraulic cylinder body is installed on the inner side of the middle part of the merging device, and the liquid outlet is movably connected to the inner side of the middle part of the merging device, the merging device comprises a fixed plate, a diverter groove, a synchronization component, a baffle, an electric control valve and a fixed plate. A diverter groove is provided on the inner rear side of the fixed plate, the synchronization component and the baffle are respectively arranged on the inside of the fixed plate, the electric control valve is installed in the middle part of the front end of the fixed plate, the front end of the diverter groove is connected to the rear end of the synchronization component, the right end of the fixed plate and the fixed plate are fixedly connected by bolts, the hydraulic cylinder body is installed at the middle connection of the fixed plate and the fixed plate, and the liquid outlet is movably connected to the rear side of the diverter groove.

[0009] Preferably, the synchronization component includes piston rod 2, sensor block 1 and sensor block 3, the sensor block 1 is installed in the middle of the front end of the piston rod 2, the piston rod 2 is arranged inside the fixed plate 1, and the sensor block 3 is installed in the middle of the rear end of the baffle.

[0010] Preferably, three groups of through holes are opened at the rear end of the fixed plate 1, and the three groups of through holes are respectively connected to the rear ends of the diversion grooves, so as to facilitate the oil inside the three groups of hydraulic cylinder bodies to pass through the diversion grooves to achieve the effect of merging the liquids.

[0011] Preferably, three groups of movable grooves are opened at the front end of the diversion groove, and the inner sides of the three groups of movable grooves are respectively provided with corresponding synchronization components, so that the oil can be pushed synchronously through the setting of the synchronization components to achieve the output effect.

[0012] Preferably, sliding rods and springs are respectively provided on the left and right sides of the front end of the baffle. The baffle is elastically matched with the left and right sides of the inner side of the fixed plate through the sliding rods and springs on the left and right sides. When the hydraulic oil is released, the baffle will be pushed back to the initial position by the spring to reset it.

[0013] Preferably, sensing blocks three are respectively provided at the middle of the rear end and the left and right sides of the baffle. The three groups of sensing blocks three are respectively provided corresponding to the sensing blocks one at the front ends of the three groups of piston rods two. The electric control valve can only be opened after the three groups of sensing blocks one and the sensing blocks three are docked and sensed, thereby allowing the liquid to flow out and be discharged.

[0014] Preferably, the piston rod 2, the induction block 1 and the induction block 3 are arranged on the same horizontal line, and the piston rod 2 is adjusted to move in a translational manner along the movable groove in the middle of the inner side of the diversion groove, so that the piston rod 2 can be guided and translated along the inner side of the diversion groove.

[0015] (3) Beneficial effects

[0016] The utility model provides a multi-cylinder synchronous hydraulic cylinder structure. It has the following beneficial effects: by setting a converging device, fixing plate 1 and fixing plate 2 are fastened and installed on the outside of the hydraulic cylinder body by bolts; the oil of the three groups of hydraulic cylinder bodies is merged through the diverter groove, and then the pressure brought by the oil passes through the three groups of movable grooves of the diverter groove respectively to cause the synchronization component to perform translation adjustment, and after the synchronization component contacts the baffle, the electric control valve receives the signal induction and separates, and then the oil is discharged through the electric control valve along the left and right sides of the baffle, so that the liquid of the three groups of hydraulic cylinder bodies is synchronously adjusted from the discharge port at the front end of the electric control valve; at the same time, when the hydraulic oil is released, the baffle is pushed back to the initial position by the spring to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the planar structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the top plan structure of the merging device of the present invention;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the merging device of the present utility model;

[0021] Figure 5 This is a schematic diagram of the top plan structure of the synchronization component of the present invention.

[0022] In the figure: hydraulic cylinder body 1, liquid inlet 2, piston rod 1 3, liquid outlet 4, merging device 5, fixed plate 1 51, diverter trough 52, synchronization component 53, baffle 54, electric control valve 55, fixed plate 2 56, piston rod 2 531, sensor block 1 532, sensor block 3 533. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 and 2The utility model provides a technical solution for a multi-cylinder synchronous hydraulic cylinder structure: a multi-cylinder synchronous hydraulic cylinder structure, comprising a hydraulic cylinder body 1, a liquid inlet 2, a piston rod 3, a liquid outlet 4 and a merging device 5, the liquid inlet 2 and the liquid outlet 4 are provided on the upper and lower sides of the front end of the hydraulic cylinder body 1, a piston rod 3 is installed on the inner side of the top end of the hydraulic cylinder body 1, the hydraulic cylinder body 1 is installed on the inner side of the middle part of the merging device 5, and the liquid outlet 4 is movably connected to the inner side of the middle part of the merging device 5.

[0025] See also Figure 3 and 4 The present invention provides a technical solution for a multi-cylinder synchronous hydraulic cylinder structure: a multi-cylinder synchronous hydraulic cylinder structure, a confluence device 5 includes a fixed plate 1 51, a diverter groove 52, a synchronization component 53, a baffle 54, an electric control valve 55 and a fixed plate 2 56, a diverter groove 52 is opened on the inner rear side of the fixed plate 1 51, the synchronization component 53 and the baffle 54 are respectively arranged inside the fixed plate 1 51, the electric control valve 55 is installed in the middle of the front end of the fixed plate 1 51, the front end of the diverter groove 52 is connected to the rear end of the synchronization component 53, the fixed plate 1 51 and the right end of the fixed plate 2 56 are fixedly connected by bolts, the hydraulic cylinder body 1 is installed at the middle connection of the fixed plate 1 51 and the fixed plate 2 56, the outlet 4 is connected to the diverter groove 52 The rear sides are movably connected, and three groups of through holes are provided at the rear end of the fixed plate 51, and the three groups of through holes are respectively connected to the rear ends of the diverter grooves 52, so that the oil inside the three groups of hydraulic cylinder bodies 1 can merge through the diverter grooves 52. Three groups of movable grooves are provided at the front end of the diverter grooves 52, and the inner sides of the three groups of movable grooves are respectively provided with synchronization components 53, so that the oil can be pushed synchronously through the setting of the synchronization components 53 to achieve the output effect. Slide rods and springs are respectively provided on the left and right sides of the front end of the baffle 54. The baffle 54 is elastically matched with the left and right sides of the interior of the fixed plate 51 through the slide rods and springs on the left and right sides. When the hydraulic oil is released, the baffle 54 will be pushed back to the initial position by the spring for reset.

[0026] See also Figure 5The present invention provides a technical solution for a multi-cylinder synchronous hydraulic cylinder structure: a multi-cylinder synchronous hydraulic cylinder structure, a synchronization component 53 includes a piston rod 2 531, a sensing block 1 532 and a sensing block 3 533, a sensing block 1 532 is installed at the front middle of the piston rod 2 531, the piston rod 2 531 is arranged inside the fixed plate 1 51, and the sensing block 3 533 is installed at the rear middle of the baffle 54, and the rear middle and left and right sides of the baffle 54 are respectively provided with sensing blocks 3 533, three groups of sensing blocks 3 533 They are respectively arranged corresponding to the sensing blocks 1 532 at the front ends of the three groups of piston rods 2 531, and the electric control valve 55 can only be opened after the three groups of sensing blocks 1 532 and sensing blocks 3 533 are connected and sensed, thereby allowing the liquid to flow out and be discharged. The piston rod 2 531, the sensing block 1 532 and the sensing block 3 533 are arranged on the same horizontal line, and the piston rod 2 531 is translated and adjusted along the movable groove in the middle of the inner side of the diversion groove 52, so that the piston rod 2 531 can be guided and translated along the inner side of the diversion groove 52.

[0027] When in use, the gaps of the diverter groove 52 on the inner side of the rear end of the fixing plate 1 51 are respectively connected to the liquid outlets 4 on the front ends of the three groups of hydraulic cylinder bodies 1, and then the fixing plate 1 51 and the fixing plate 2 56 are locked and fixed to the outer side of the upper end of the hydraulic cylinder body 1 by bolts;

[0028] When the oil inside the three hydraulic cylinder bodies 1 is transported to the inside of the diverter groove 52 through the liquid outlet 4, the oil in the three hydraulic cylinder bodies 1 is merged through the diverter groove 52, and then the pressure brought by the oil passes through the three groups of movable grooves of the diverter groove 52 respectively, and pushes the piston rods 2 531 of the three synchronous components 53 respectively, so that the three piston rods 2 531 are respectively moved forward along the inside of the three groups of movable grooves, and at the same time, the induction block 1 532 at the front end of the three piston rods 2 531 is connected to the induction block 3 53 The three-phase fitting induction causes the electric control valve 55 to open after receiving the fitting of the three sets of sensing blocks 1 532 and 3 533, and then the oil is discharged from the electric control valve 55 along the left and right sides of the baffle 54, so that the liquid of the three groups of hydraulic cylinder bodies 1 is adjusted to flow through the discharge port at the front end of the same electric control valve 55; at the same time, when the hydraulic oil is released, the baffle 54 is pushed back to the initial position by the spring for reset, so that the three groups of hydraulic cylinder bodies 1 can be discharged synchronously.

[0029] The control method of the present invention is to manually start and stop the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field. Moreover, the present invention is mainly used to protect mechanical devices. Therefore, the control method and wiring arrangement are not explained in detail in the present invention.

[0030] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-cylinder synchronous hydraulic cylinder structure, comprising a hydraulic cylinder body (1), a liquid inlet (2), a piston rod (3) and a liquid outlet (4), wherein the liquid inlet (2) and the liquid outlet (4) are provided on the upper and lower sides of the front end of the hydraulic cylinder body (1), and the piston rod (3) is installed on the inner side of the top end of the hydraulic cylinder body (1); Its characteristics are: The invention also includes a merging device (5), wherein the hydraulic cylinder body (1) is installed on the inner side of the middle part of the merging device (5), and the liquid outlet (4) is movably connected to the inner side of the middle part of the merging device (5). The merging device (5) includes a fixed plate (51), a diverter groove (52), a synchronous component (53), a baffle (54), an electric control valve (55) and a fixed plate (56). The inner rear side of the fixed plate (51) is provided with a diverter groove (52), the synchronous component (53) and the baffle (54) are connected to the fixed plate (51). ) are respectively arranged inside the fixed plate one (51), the electric control valve (55) is installed in the middle of the front end of the fixed plate one (51), the front end of the diverter groove (52) is connected to the rear end of the synchronization component (53), the fixed plate one (51) and the right end of the fixed plate two (56) are fixedly connected by bolts, the hydraulic cylinder body (1) is installed at the middle connection between the fixed plate one (51) and the fixed plate two (56), and the liquid outlet (4) is movably connected to the rear side of the diverter groove (52).

2. The multi-cylinder synchronized hydraulic cylinder structure according to claim 1, characterized in that: The synchronization component (53) includes a second piston rod (531), a first induction block (532) and a third induction block (533). The first induction block (532) is installed in the middle of the front end of the second piston rod (531). The second piston rod (531) is arranged inside the first fixed plate (51). The third induction block (533) is installed in the middle of the rear end of the baffle (54).

3. The multi-cylinder synchronized hydraulic cylinder structure according to claim 1, characterized in that: The rear end of the fixing plate 1 (51) is provided with three groups of through holes, and the three groups of through holes are respectively connected to the rear ends of the diversion troughs (52).

4. The multi-cylinder synchronized hydraulic cylinder structure according to claim 1, characterized in that: The front end of the diversion groove (52) is provided with three groups of movable grooves, and the inner sides of the three groups of movable grooves are respectively provided with corresponding synchronization components (53).

5. The multi-cylinder synchronized hydraulic cylinder structure according to claim 1, characterized in that: The front end of the baffle (54) is provided with a slide rod and a spring on both sides, and the baffle (54) is elastically matched with the left and right sides of the interior of the fixed plate (51) through the slide rods and springs on the left and right sides.

6. The multi-cylinder synchronized hydraulic cylinder structure according to claim 2, characterized in that: The middle portion of the rear end and the left and right sides of the baffle (54) are respectively provided with a third sensing block (533), and the three groups of third sensing blocks (533) are respectively provided corresponding to the first sensing blocks (532) at the front ends of the three groups of second piston rods (531).

7. The multi-cylinder synchronized hydraulic cylinder structure according to claim 2, characterized in that: The second piston rod (531), the first induction block (532) and the third induction block (533) are arranged on the same horizontal line, and the second piston rod (531) is adjusted to move along the movable groove in the middle of the inner side of the diversion groove (52).

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