Soybean oil press roller combined polishing device

Abstract

The present application relates to the technical field of soybean oil press roller maintenance, and particularly discloses a combined polishing device for soybean oil press roller, which comprises a workbench, a linear motor for driving linear movement of a connecting mechanism, and a polishing mechanism for polishing the soybean oil press roller. The upper end of the workbench is fixedly connected with the linear motor, the upper end of the linear motor is installed with the connecting mechanism, the connecting mechanism is internally installed with a linkage mechanism, the upper end of the connecting mechanism is installed with the polishing mechanism, and the linear motor is installed with a steering control mechanism at both ends. The linkage mechanism comprises a bent pipe, the inner ends of both ends of the bent pipe are fixedly connected with ring plates, one end of each ring plate is fixedly connected with an extension spring, the other end of each extension spring is fixedly connected with a piston, and the other ends of the pistons fixedly connected with a first connecting rod and a second connecting rod are arranged at both ends of the bent pipe. The present application effectively solves the core technical problem that the service life of the press roller is shortened due to the inability to self-adaptively adjust the polishing depth of cut in the prior art.

Description

Technical Field

[0001] This invention relates to a combined grinding device for soybean oil pressing rollers, belonging to the field of soybean oil pressing roller maintenance technology. Background Technology

[0002] During operation, the soybean oil pressing rollers are subjected to uneven pressure distribution for a long time, which causes the wear rate in the middle area of ​​the rollers to be significantly faster than that at the ends, forming a concave wear characteristic of "small gap at both ends and large gap in the middle". In severe cases, the generatrix of the rollers changes from a straight line to an arc, which directly affects the oil extraction efficiency and power consumption of the oil press.

[0003] Therefore, the pressure roller needs to be regularly repaired by grinding to restore its cylindricity.

[0004] During the grinding process, if the grinding depth cannot be adaptively adjusted according to the actual wear profile of the pressure roller—concave in the middle and convex at both ends—it will inevitably lead to over-grinding of the already severely worn middle area while the two ends are ground to a certain extent. Therefore, it is urgent to improve a soybean oil pressing roller combined grinding device to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a combined grinding device for soybean oil pressing rollers, in order to solve the problem that if the grinding depth cannot be adaptively adjusted according to the actual wear profile of the rollers—concave in the middle and convex at both ends—the grinding depth will inevitably lead to over-grinding of the already severely worn middle area while the two ends are ground to a sufficient extent.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A combined grinding device for soybean oil pressing rollers includes a worktable, a linear motor for driving a connecting mechanism to move linearly, and a grinding mechanism for grinding the soybean oil pressing rollers. The linear motor is fixedly connected to the upper end of the worktable, and a connecting mechanism is mounted on the upper end of the linear motor. A linkage mechanism is installed inside the connecting mechanism, and the grinding mechanism is mounted on the upper end of the connecting mechanism. Steering control mechanisms are installed at both ends of the linear motor. The linkage mechanism includes a bent tube, with ring plates fixedly connected to both ends of the bent tube. A telescopic spring is fixedly connected to one end of each ring plate, and a piston is fixedly connected to the other end of each telescopic spring. A first connecting rod and a second connecting rod are fixedly connected to the other ends of the pistons at both ends of the bent tube. A friction layer is fixedly connected to the outer side of the first connecting rod, and a detection wheel is rotatably connected to the top of the second connecting rod. Hydraulic oil is filled between the two pistons inside the bent tube, and the pistons are slidably connected to the inner wall of the bent tube. The end of the first connecting rod away from the piston is fixedly connected to the grinding mechanism, and the detection wheel is located directly below the soybean oil pressing roller.

[0008] Furthermore, two drive rollers for driving the soybean oil pressing roller to rotate at a uniform speed are installed on the upper end of the worktable. The two drive rollers are parallel to each other, and the soybean oil pressing roller is placed on the upper end of the two drive rollers.

[0009] Furthermore, the steering control mechanism includes a vertical plate, with a spring telescopic rod and a steering rod fixedly connected to the upper end of the vertical plate, and the bottom end of the vertical plate fixedly connected to the housing of the linear motor by screws. The top of the moving end of the spring telescopic rod is provided with an arc-shaped groove that matches the friction layer on the outer side of the first connecting rod, and friction protrusions are provided inside the arc-shaped groove.

[0010] Furthermore, there are two steering control mechanisms, which are respectively located at both ends of the linear motor.

[0011] Furthermore, the connecting mechanism includes a connecting plate, an L-shaped mounting hole is provided in the middle of the connecting plate, the inner wall of the mounting hole is fixedly connected to the outer wall of the bent pipe, and a slide is provided at the upper end of the connecting plate.

[0012] Furthermore, the polishing mechanism includes a polishing machine, a reinforcing arm is installed on the outside of the polishing machine, a turntable is fixedly connected to the lower part of the bent end of the reinforcing arm, a connecting shaft is fixedly connected to the lower end of the turntable, a circular plate is installed at the lower end of the turntable, a plurality of ball bearings are installed on the upper edge of the circular plate, a rotating hole is opened in the middle of the upper end of the circular plate, a spring is installed inside the upper end of the rotating hole, a support plate is fixedly connected to the lower end of the circular plate, and a support wheel is rotatably connected to the lower end of the support plate.

[0013] Furthermore, the vertical cross-sectional projections of the connecting shaft and the rotating hole are both T-shaped. The connecting shaft is rotatably connected to the circular plate via a spring and a bearing. The lower end of the turntable is in close contact with the ball bearing.

[0014] Furthermore, the center point of the reinforcing arm and the center point of the steering rod are set on the same horizontal plane, the circular plate is fixedly connected to the first connecting rod, and the center point of the first connecting rod and the center point of the spring telescopic rod are set on the same horizontal plane.

[0015] Furthermore, the support wheel is mounted on the upper end of the connecting plate via a slide rail.

[0016] Furthermore, the grinding wheel inside the grinding machine is a flap wheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention achieves automatic sensing and differentiated feed control of the wear profile of the pressure roller through a purely mechanical linkage structure. While ensuring that the two ends are ground in place, it completely avoids excessive cutting of the middle wear area, effectively solving the core technical problem of shortening the service life of the pressure roller due to the inability to adaptively adjust the grinding depth in the prior art. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a front view of the placement position of the drive roller in this invention;

[0021] Figure 3 This is a schematic diagram of the installation position of the linkage mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the steering control mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection mechanism structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the linkage mechanism structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0026] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B;

[0027] Figure 9 This is a schematic diagram of the grinding mechanism of the present invention;

[0028] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C;

[0029] Figure 11 This is a schematic diagram of the mounting position of the connecting shaft of the present invention;

[0030] Figure 12 This is a schematic diagram of the contact structure between the steering control mechanism and the grinding mechanism of the present invention.

[0031] In the diagram, 1 is the worktable; 2 is the linear motor.

[0032] 3. Steering control mechanism; 31. Vertical plate; 32. Spring telescopic rod; 33. Steering rod;

[0033] 4. Drive roller; 5. Soybean oil pressing roller;

[0034] 6. Connecting mechanism; 61. Connecting plate; 62. Mounting hole; 63. Slide rail;

[0035] 7. Linkage mechanism; 71. Bend; 72. Ring plate; 73. Telescopic spring; 74. Piston; 75. First connecting rod; 76. Friction layer; 77. Second connecting rod; 78. Detection wheel;

[0036] 8. Grinding mechanism; 81. Grinding machine; 82. Reinforcing arm; 83. Turntable; 84. Connecting shaft; 85. Round plate; 86. Ball bearing; 87. Rotary hole; 88. Clock spring; 89. Support plate; 810. Support wheel. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figures 1-12 As shown, this embodiment provides a combined grinding device for soybean oil pressing rollers, including a worktable 1, a linear motor 2 for driving the linear movement of a connecting mechanism 6, and a grinding mechanism 8 for grinding the soybean oil pressing rollers 5. The linear motor 2 is fixedly connected to the upper end of the worktable 1, and the connecting mechanism 6 is installed on the upper end of the linear motor 2. A linkage mechanism 7 is installed inside the connecting mechanism 6, and the grinding mechanism 8 is installed on the upper end of the connecting mechanism 6. Steering control mechanisms 3 are installed at both ends of the linear motor 2. The linkage mechanism 7 includes a bent tube 71, and a ring plate 72 is fixedly connected inside both ends of the bent tube 71. A telescopic spring 73 is fixedly connected to one end of each ring plate 72, and a piston 74 is fixedly connected to the other end of each telescopic spring 73. The piston 74 is set at both ends of the bent tube 71, and a first connecting rod 75 and a second connecting rod 77 are fixedly connected to the other end of each piston 74. The outer side of the first connecting rod 75... A friction layer 76 is fixedly connected, and a detection wheel 78 is rotatably connected to the top of the second connecting rod 77. Hydraulic oil is filled between the two pistons 74 inside the bent tube 71. The pistons 74 are slidably connected to the inner wall of the bent tube 71. The end of the first connecting rod 75 away from the pistons 74 is fixedly connected to the grinding mechanism 8. The detection wheel 78 is located at the lower end of the soybean oil pressing roller 5. Through the linkage of the bent tube 71 and its internal hydraulic oil, ring plate 72, telescopic spring 73, and pistons 74, the detection wheel 78 contacts the surface of the soybean oil pressing roller 5 in real time and transmits its wear fluctuations to the first connecting rod 75 hydraulically. This drives the grinding mechanism 8 to automatically float with the contour of the roller, realizing purely mechanical contour tracking grinding. It can adaptively compensate for the axial wear difference of the roller without any electronic sensors, significantly improving the grinding reliability and repair accuracy in high dust and oil mist environments.

[0039] As a further optimized solution of the present invention, the steering control mechanism 3 includes a vertical plate 31, with a spring telescopic rod 32 and a steering rod 33 fixedly connected to the upper end of the vertical plate 31. The bottom end of the vertical plate 31 is fixedly connected to the housing of the linear motor 2 by screws. The top of the moving end of the spring telescopic rod 32 is provided with an arc-shaped groove that matches the friction layer 76 on the outer side of the first connecting rod 75. Friction protrusions are provided inside the arc-shaped groove. There are two steering control mechanisms 3, which are respectively set at both ends of the linear motor 2. With the above settings, when the grinder 81 moves to the chamfered positions at both ends of the soybean oil pressing roller 5, it automatically turns to achieve grinding of the chamfered positions of the soybean oil pressing roller 5.

[0040] As a further optimized solution of the present invention, the connecting mechanism 6 includes a connecting plate 61, with an L-shaped mounting hole 62 in the middle of the connecting plate 61. The inner wall of the mounting hole 62 is fixedly connected to the outer wall of the bent pipe 71. A slide rail 63 is provided at the upper end of the connecting plate 61. The L-shaped mounting hole 62 in the middle of the connecting plate 61 is fixedly engaged with the outer wall of the bent pipe 71, which not only provides a stable mounting support for the bent pipe 71, but also uses the L-shaped bend structure to axially limit the bent pipe 71, preventing the bent pipe 71 from shifting or deflecting during long-term reciprocating motion. The slide rail 63 at the upper end of the connecting plate 61 provides a precise linear guide trajectory for the support wheel 810, ensuring the straightness of the grinding mechanism 8 when moving along the axial direction of the pressure roller, thereby ensuring the straightness of the pressure roller generatrix after grinding.

[0041] As a further optimized embodiment of the present invention, the grinding mechanism 8 includes a grinding machine 81. A reinforcing arm 82 is mounted on the outside of the grinding machine 81. A turntable 83 is fixedly connected to the lower part of the bent end of the reinforcing arm 82. A connecting shaft 84 is fixedly connected to the lower end of the turntable 83. A circular plate 85 is mounted on the lower end of the turntable 83. A plurality of ball bearings 86 are mounted on the upper edge of the circular plate 85. A rotating hole 87 is opened in the middle of the upper end of the circular plate 85. A spring 88 is installed inside the upper end of the rotating hole 87. A support plate 89 is fixedly connected to the lower end of the circular plate 85. A support wheel 81 is rotatably connected to the lower end of the support plate 89. 0. The vertical cross-sectional projections of the connecting shaft 84 and the rotating hole 87 are both T-shaped. The connecting shaft 84 is rotatably connected to the circular plate 85 via a spring 88 and a bearing. The lower end of the turntable 83 is in close contact with the ball bearing 86. The center point of the reinforcing arm 82 and the center point of the steering rod 33 are set on the same horizontal plane. The circular plate 85 is fixedly connected to the first connecting rod 75. The center point of the first connecting rod 75 and the center point of the spring telescopic rod 32 are set on the same horizontal plane. The support wheel 810 is installed on the upper end of the connecting plate 61 via the slide rail 63. The support wheel 810 is installed on the outside of the grinder 81 via the support wheel 810. The strong arm 82 significantly improves the overall rigidity of the grinding head, effectively suppressing high-frequency chatter during the grinding process; the turntable 83, connecting shaft 84, circular plate 85, and spring 88 constitute a flexible deflection compensation structure. When the grinding wheel encounters a local high point or hard impurities on the surface of the pressure roller, the connecting shaft 84 can deflect slightly relative to the circular plate 85 to overcome the elastic force of the spring 88, giving the grinding machine 81 radial clearance capability and preventing the grinding wheel from breaking or the pressure roller surface from being burned or scratched due to rigidity overload; multiple balls 86 set on the upper edge of the circular plate 85 and the lower edge of the turntable 83... The end is in close contact with the rolling contact, which greatly reduces the frictional resistance during deflection, making the floating response of the grinding head more sensitive and smooth. The support wheel 810, which is rotatably connected to the lower end of the support plate 89, rolls along the slide 63, which not only bears the overall weight of the grinding machine 81, but also ensures low resistance sliding of the grinding head during axial reciprocating motion. At the same time, the rolling cooperation between the support wheel 810 and the slide 63 also plays an auxiliary guiding role, ensuring the stability of the posture of the grinding machine 81 and keeping the grinding pressure uniform throughout the entire length of the pressure roller, effectively improving the contour reproduction accuracy of contour grinding.

[0042] Example 1

[0043] Soybean oil pressing roller 5 placement and roller surface inspection:

[0044] During operation, the equipment is powered by an external industrial power supply. After the power supply is completed, the soybean oil pressing roller 5 that needs to be ground is placed in the middle of the upper end of the two drive rollers 4, and the soybean oil pressing roller 5 is driven to rotate at a uniform speed by the two drive rollers 4.

[0045] Specifically, this is achieved by installing two drive rollers 4 on the upper end of the workbench 1 to drive the soybean oil pressing roller 5 to rotate at a uniform speed. The two drive rollers 4 are parallel to each other, and the soybean oil pressing roller 5 is placed on the upper end of the two drive rollers 4.

[0046] After placement, the detection wheel 78 is in close contact with the lower end face of the soybean oil pressing roller 5, and the connecting mechanism 6 is moved by the linear motor 2, thereby moving the detection wheel 78 to the position where the soybean oil pressing roller 5 is most severely worn (in this process, the position where the soybean oil pressing roller 5 is most severely worn is moved to the bottom, generally in the middle of the soybean oil pressing roller 5, the specific position needs to be determined by measurement). Then, the length of the second connecting rod 77 (further explanation is needed, the length of the second connecting rod 77 can be adjusted according to actual needs and the adjusted state can be locked) is adjusted so that the detection wheel 78 is in close contact with the soybean oil pressing roller 5.

[0047] After adjustment, control the linear motor 2 to drive the grinding mechanism 8 to move back and forth along the soybean oil pressing roller 5, observe whether the movement of the grinding mechanism 8 is smooth, and complete the test.

[0048] Example 2

[0049] The equipment is running as a whole, and the soybean oil pressing roller 5 is being polished:

[0050] When the detection wheel 78 is in a severely worn position on the soybean oil pressing roller 5, the second connecting rod 77 extends outward, the first connecting rod 75 retracts inward, and the grinder 81 (the grinding wheel inside the grinder 81 is a flap wheel) moves away from the soybean oil pressing roller 5 to perform slight grinding, or separates from the soybean oil pressing roller 5 and does not perform grinding (during this process, the grinder 81 is in an idling state).

[0051] When the detection wheel 78 is in a position where the wear of the soybean oil pressing roller 5 is not severe, the second connecting rod 77 retracts inward, the first connecting rod 75 pushes outward, and the grinder 81 moves towards the soybean oil pressing roller 5 to perform pressing and grinding. This is to make the position of the soybean oil pressing roller 5 at this location level with the position of the soybean oil pressing roller 5 where the wear is severe, thus ensuring the overall smoothness of the soybean oil pressing roller 5.

[0052] Example 3

[0053] Chamfering and grinding at both ends of soybean oil pressing roller 5:

[0054] When the grinder 81 moves to both ends of the soybean oil pressing roller 5, the reinforcing arm 82 contacts the steering rod 33 and rotates. The friction protrusions inside the arc groove of the spring telescopic rod 32 contact the friction layer 76 and control the first connecting rod 75. At this time, after rotation, the grinder 81 grinds the chamfered positions at both ends of the soybean oil pressing roller 5.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined grinding device for soybean oil pressing rollers, comprising a worktable (1), a linear motor (2) for driving the connecting mechanism (6) to move linearly, and a grinding mechanism (8) for grinding the soybean oil pressing rollers (5), characterized in that: A linear motor (2) is fixedly connected to the upper end of the workbench (1). A connecting mechanism (6) is installed on the upper end of the linear motor (2). A linkage mechanism (7) is installed inside the connecting mechanism (6). A grinding mechanism (8) is installed on the upper end of the connecting mechanism (6). A steering control mechanism (3) is installed at both ends of the linear motor (2). The linkage mechanism (7) includes a bent tube (71), with ring plates (72) fixedly connected inside both ends of the bent tube (71). A telescopic spring (73) is fixedly connected to one end of each ring plate (72), and a piston (74) is fixedly connected to the other end of each telescopic spring (73). A first connecting rod (75) and a second connecting rod (77) are fixedly connected to the other ends of the pistons (74) at both ends of the bent tube (71). A friction layer (76) is fixedly connected to the outside of the first connecting rod (75), and a detection wheel (78) is rotatably connected to the top of the second connecting rod (77). Hydraulic oil is filled between the two pistons (74) inside the bent tube (71). The pistons (74) are slidably connected to the inner wall of the bent tube (71). The end of the first connecting rod (75) away from the piston (74) is fixedly connected to the grinding mechanism (8). The detection wheel (78) is located at the lower end of the soybean oil pressing roller (5).

2. The soybean oil pressing roller combined grinding device according to claim 1, characterized in that: The upper end of the workbench (1) is equipped with two drive rollers (4) for driving the soybean oil pressing roller (5) to rotate at a uniform speed. The two drive rollers (4) are parallel to each other, and the soybean oil pressing roller (5) is placed on the upper end of the two drive rollers (4).

3. The soybean oil pressing roller combined grinding device according to claim 1, characterized in that: The steering control mechanism (3) includes a vertical plate (31), with a spring telescopic rod (32) and a steering rod (33) fixedly connected to the upper end of the vertical plate (31). The bottom end of the vertical plate (31) is fixedly connected to the housing of the linear motor (2) by screws. The top of the moving end of the spring telescopic rod (32) is provided with an arc-shaped groove that matches the friction layer (76) on the outside of the first connecting rod (75). Friction protrusions are provided inside the arc-shaped groove.

4. The soybean oil pressing roller combined grinding device according to claim 1, characterized in that: There are two steering control mechanisms (3), which are respectively located at both ends of the linear motor (2).

5. The soybean oil pressing roller combined grinding device according to claim 1, characterized in that: The connecting mechanism (6) includes a connecting plate (61), which has an L-shaped mounting hole (62) in the middle. The inner wall of the mounting hole (62) is fixedly connected to the outer wall of the bent pipe (71). A slide (63) is provided at the upper end of the connecting plate (61).

6. The soybean oil pressing roller combined grinding device according to claim 1, characterized in that: The polishing mechanism (8) includes a polishing machine (81), a reinforcing arm (82) is installed on the outside of the polishing machine (81), a turntable (83) is fixedly connected to the lower part of the bent end of the reinforcing arm (82), a connecting shaft (84) is fixedly connected to the lower end of the turntable (83), a circular plate (85) is installed at the lower end of the turntable (83), a plurality of ball bearings (86) are installed on the upper edge of the circular plate (85), a rotating hole (87) is opened in the middle of the upper end of the circular plate (85), a spring spring (88) is installed inside the upper end of the rotating hole (87), a support plate (89) is fixedly connected to the lower end of the circular plate (85), and a support wheel (810) is rotatably connected to the lower end of the support plate (89).

7. The soybean oil pressing roller combined grinding device according to claim 6, characterized in that: The vertical cross-sectional projections of the connecting shaft (84) and the rotating hole (87) are both T-shaped. The connecting shaft (84) is rotatably connected to the circular plate (85) through a spring (88) and a bearing. The lower end of the turntable (83) is in close contact with the ball (86).

8. The soybean oil pressing roller combined grinding device according to claim 6, characterized in that: The center point of the reinforcing arm (82) and the center point of the steering rod (33) are set on the same horizontal plane. The circular plate (85) is fixedly connected to the first connecting rod (75). The center point of the first connecting rod (75) and the center point of the spring telescopic rod (32) are set on the same horizontal plane.

9. A soybean oil pressing roller combined grinding device according to claim 6, characterized in that: The support wheel (810) is mounted on the upper end of the connecting plate (61) via a slide rail (63).

10. A soybean oil pressing roller combined grinding device according to claim 6, characterized in that: The grinding wheel inside the grinding machine (81) is a flap wheel.

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