Ring rolling machine driven by servo electro-hydraulic actuator

Abstract

A ring rolling machine driven by a servo electro-hydraulic actuator comprises a machine body and a main roller arranged on one side of the machine body and driven by a speed reduction component to rotate, a vertical core roller component capable of freely rotating is arranged on one side of the main roller, and the core roller component is driven by a vertical hydraulic oil cylinder to ascend and descend. The other side of the surface of the machine body is provided with end face rollers which are driven by hydraulic oil cylinders to ascend, descend and move horizontally, the end face rollers are symmetrically arranged up and down, each hydraulic oil cylinder is correspondingly provided with a servo electro-hydraulic actuator, and control oil ways of the servo electro-hydraulic actuators are communicated with the corresponding hydraulic oil cylinders and used for controlling the corresponding hydraulic oil cylinders to stretch out and draw back. The hydraulic control system is composed of the servo motor two-way metering pump and the functional valve group, can accurately control the action of the oil cylinder, and can quickly respond according to the command requirement of a control system; the whole system outputs kinetic energy according to the requirements of the execution oil cylinder, no extra heat energy loss exists, and the purposes of energy conservation and accurate control are fully achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ring rolling machine technical field, specifically speaking, a kind of ring rolling machine driven by servo electro-hydraulic actuator. BACKGROUND

[0002] The hydraulic cylinder drive of conventional ring rolling machine is all supplied by centralized hydraulic pump station, the speed and output force of oil cylinder are controlled by hydraulic valve, to control the action of ring rolling machine operating mechanism. Oil cylinder and pump station are connected by pipeline, each pipeline needs to be composed of multiple sections, leakage problem often occurs during rolling process, which causes safety hazard, environmental pollution and resource loss. The traditional valve control system adjusts system speed and pressure through flow limiting principle, and the efficiency utilization rate is low. In addition, during pipeline construction process of ring rolling machine, the cleanliness of pipeline cannot be guaranteed, impurities and foreign matters are easy to enter the system, causing system pollution and system failure. SUMMARY

[0003] To solve the above problems, the purpose of the utility model is to provide a kind of ring rolling machine driven by servo electro-hydraulic actuator.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows: a kind of ring rolling machine driven by servo electro-hydraulic actuator, including body and the main roller driven rotation by speed reduction component and set at the side of body, the core roller component is vertically and freely rotatable and set at the side of main roller, the core roller component is driven lifting by vertical hydraulic cylinder, and the movable frame body where the core roller component is located is driven horizontally moving by a horizontal hydraulic cylinder, the other side of the surface of body is provided with end face roller driven lifting and horizontal moving by hydraulic cylinder, the end face roller is symmetrically arranged up and down, and the opposite side of end face roller is parallel to each other, each end face roller is driven rotation by speed reduction device respectively, each hydraulic cylinder is provided with a servo electro-hydraulic actuator respectively, the control oil circuit of servo electro-hydraulic actuator is communicated with corresponding hydraulic cylinder, for controlling the extension and contraction of corresponding hydraulic cylinder.

[0005] Further, the servo electro-hydraulic actuator includes servo motor, bidirectional quantitative pump and function valve group, the bidirectional quantitative pump is driven by servo motor, and the oil circuit of function valve group is communicated with the bidirectional quantitative pump.

[0006] Further, the front and back sides of main roller are respectively provided with front and back swing centering mechanism, the outer end of centering mechanism is provided with centering roller, and the inner end of centering mechanism is driven by corresponding hydraulic cylinder.

[0007] Further, the end face roller is rotationally arranged on sliding seat, the sliding seat is vertically slidably arranged in end face rolling part support, and the hydraulic cylinder is arranged at the top and bottom of end face rolling part support respectively, and the sliding seat is driven by hydraulic cylinder to slide up and down along end face rolling part support.

[0008] Further, the surface of the machine body is provided with a rolling ring platform, and the surface of the rolling ring platform is provided with a plurality of support rotating rollers arranged around the center of the rolling ring platform.

[0009] Further, the end face rolling part support is slidingly arranged on one side of the surface of the machine body, and one side of the end face rolling part support is provided with a hydraulic oil cylinder for pushing the end face rolling part support to move towards the main roller.

[0010] Through the above arrangement, the control of each hydraulic oil cylinder of the utility model is independent, is composed of a servo motor bidirectional quantitative pump and a function valve group, can accurately control the action of the oil cylinder, and can quickly respond according to the control system instruction requirement;The whole system carries out kinetic energy output according to the demand of the execution oil cylinder, and there is no additional heat energy loss, and the purpose of energy saving and accurate control is fully achieved;Due to the nearby installation of the servo electro-hydraulic actuator, the pipeline circuit is reduced, the energy loss caused by the pipeline is avoided, and the oil leakage and cleanliness problems in the pipeline construction process are solved. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model will be further described with reference to the drawings.

[0012] Fig. 1 It is the front view structural schematic diagram of the utility model;

[0013] Fig. 2 It is the structural schematic diagram of the servo electro-hydraulic actuator of the utility model. DETAILED DESCRIPTION

[0014] As Figs. 1-2As shown, a ring rolling machine driven by servo electro-hydraulic actuators includes a machine body 11 and a main roller 3 arranged on one side of the machine body 11 and driven to rotate by a speed reduction component 2. A core roller component 4 is arranged on one side of the main roller 3 and can freely rotate vertically. The core roller component 4 is driven to lift by a vertical hydraulic cylinder 7, and a movable frame body 8 where the core roller component 4 is arranged is driven to move horizontally by a horizontal hydraulic cylinder 7. Another side of the surface of the machine body 11 is provided with an end face roller 9 driven to lift and move horizontally by the hydraulic cylinder 7. The end face roller 9 is symmetrically arranged up and down, and the opposite sides of the end face roller 9 are parallel to each other. Each end face roller 9 is driven to rotate by a speed reduction device 10. Each hydraulic cylinder 7 is provided with a servo electro-hydraulic actuator 1 corresponding to each hydraulic cylinder 7. The control oil way of the servo electro-hydraulic actuator 1 is communicated with the corresponding hydraulic cylinder 7, used to control the extension and retraction of the corresponding hydraulic cylinder 7. The front and back sides of the main roller 3 are respectively provided with a front and back swinging centering mechanism 5. The outer end of the centering mechanism 5 is provided with a centering roller 6. The inner end of the centering mechanism 5 is driven by the corresponding hydraulic cylinder 7. The end face roller 9 is rotatably arranged on a sliding seat 12. The sliding seat 12 is vertically slidably arranged in an end face rolling component support 13. The top and bottom of the end face rolling component support 13 are respectively provided with a hydraulic cylinder 7. The hydraulic cylinder 7 drives the sliding seat 12 to slide up and down along the end face rolling component support 13. The surface of the machine body 11 is provided with a ring rolling platform 14. The surface of the ring rolling platform 14 is provided with a plurality of support rollers arranged around the center of the ring rolling platform 14. The end face rolling component support 13 is slidably arranged on one side of the surface of the machine body 11. The side of the end face rolling component support 13 is provided with a hydraulic cylinder 7 used to push the end face rolling component support 13 to move towards the main roller 3.

[0015] Specifically, the servo electro-hydraulic actuator 1 includes a servo motor 101, a bidirectional quantitative pump 102, and a function valve group 103. The bidirectional quantitative pump 102 is driven by the servo motor 101. The function valve group 103 is communicated with the oil way corresponding to the bidirectional quantitative pump 102.

[0016] The bidirectional quantitative pump 102 and the function valve group 103 are prior art. For example, the model of the mature product of the electric servo pump control unit (EPU) of the American MOOG company is SEPU series.

[0017] The utility model discloses a working principle: the utility model compares with prior art and the difference lies in the change of drive mode, and the core roller part 4 is moved forward and backward to be used as an example to illustrate, and the core roller part 4 moves forward and backward: after the servo motor 101 of the core roller part 4 part starts (here, it is temporarily defined as positive transmission), the two-way constant delivery pump 102 is rotated to discharge oil, and the hydraulic oil cylinder 7 piston rod of the core roller part 4 part acts (extends) and moves the core roller part 4 close to the main roller 3 direction through the guide pillar driven by the main roller 3; if the servo motor 101 changes the rotation direction, then the oil output direction of the two-way constant delivery pump 102 changes, and the piston rod acts (retracts) and moves the core roller part 4 away from the main roller 3 direction through the guide pillar driven by the main roller 3.When the servo motor 101 speed improves, the pump displacement increases, and then the oil cylinder speed increases, and vice versa when the servo motor speed reduces, the pump displacement reduces, and then the oil cylinder speed reduces, and the speed regulation of the core roller operation is realized.

[0018] Similarly, the core roller part 4 moves forward and backward, and the core roller part 4 moves up and down, the centering mechanism 5 opens and closes, the end face roller 9 moves forward and backward, and the end face roller 9 moves up and down, and each action can be driven to complete through the servo electro-hydraulic actuator 1 control corresponding hydraulic oil cylinder 7, that is, after the corresponding servo motor 101 starts (here, it is temporarily defined as positive transmission), the two-way constant delivery pump 102 is rotated to discharge oil, and the corresponding hydraulic oil cylinder 7 piston rod acts (extends) and makes each execution mechanism advance, descend and close, and if the servo motor 101 changes the rotation direction, then the oil output direction of the two-way constant delivery pump 102 changes, and the piston rod acts (retracts) and makes each execution mechanism retreat, rise and open.

[0019] The above only is the specific embodiment of the utility model of illustrative, and is not used to limit the range of the utility model. Any person skilled in the art, under the premise of not departing from the concept and principle of the utility model, the equivalent change and modification made, should belong to the range of the utility model protection.

Claims

1. A ring rolling machine driven by a servo electro-hydraulic actuator, comprising a machine body (11) and a main roller (3) arranged on one side of the machine body (11) and driven to rotate by a reduction member (2), characterized in that: The main roller (3) is provided with a vertical and freely rotating core roller part (4) on one side, the core roller part (4) is driven to lift by a vertical hydraulic oil cylinder (7), and the movable frame body (8) where the core roller part (4) is located is driven to move horizontally by a horizontal hydraulic oil cylinder (7), the other side of the surface of the machine body (11) is provided with an end face roller (9) driven to lift and horizontally move by a hydraulic oil cylinder (7), the end face roller (9) is symmetrically arranged up and down, and the opposite sides of the end face roller (9) are parallel to each other, each end face roller (9) is driven to rotate by a speed reducer (10), and each hydraulic oil cylinder (7) is provided with a servo electro-hydraulic actuator (1) corresponding to each other, the control oil way of the servo electro-hydraulic actuator (1) is communicated with the corresponding hydraulic oil cylinder (7), and is used for controlling the extension and contraction of the corresponding hydraulic oil cylinder (7).

2. A ring rolling machine driven by a servo-electro-hydraulic actuator as claimed in claim 1, characterized in that: The servo electro-hydraulic actuator (1) comprises a servo motor (101), a bidirectional quantitative pump (102) and a function valve group (103), the bidirectional quantitative pump (102) is driven by the servo motor (101), and the function valve group (103) is communicated with the oil way corresponding to the bidirectional quantitative pump (102).

3. A ring rolling machine driven by a servo-electro-hydraulic actuator as claimed in claim 1, characterized in that: The front and back of the main roller (3) is respectively provided with a front and back swing centering mechanism (5), the outer end of the centering mechanism (5) is provided with a centering rotating roller (6), and the inner end of the centering mechanism (5) is driven by the corresponding hydraulic oil cylinder (7).

4. A ring rolling machine driven by a servo-electro-hydraulic actuator as claimed in claim 1, wherein: The end face roller (9) is rotatably arranged on the sliding seat (12), the sliding seat (12) is vertically slidably arranged in the end face rolling part support (13), and the top and bottom of the end face rolling part support (13) are respectively provided with hydraulic oil cylinders (7), and the hydraulic oil cylinders (7) drive the sliding seat (12) to slide up and down along the end face rolling part support (13).

5. A ring rolling machine driven by a servo-electro-hydraulic actuator as claimed in claim 1, wherein: The surface of the machine body (11) is provided with a ring rolling platform (14), and the surface of the ring rolling platform (14) is provided with a plurality of support rotating rollers arranged around the center of the ring rolling platform (14).

6. A ring rolling machine driven by a servo-electro-hydraulic actuator as claimed in claim 4, characterized in that: The end face rolling part support (13) is slidably arranged on one side of the surface of the machine body (11), and the end face rolling part support (13) is provided with a hydraulic oil cylinder (7) for pushing the end face rolling part support (13) to move towards the main roller (3).

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