Oil press capable of lubricating bearing pair

Abstract

The utility model discloses an oil press capable of lubricating a bearing pair, which comprises a machine base, a pressing cage arranged on the machine base, a pressing shaft arranged in the pressing cage, a pressing screw arranged on the pressing shaft, a blanking hopper arranged on the outer side of the pressing cage and a driving device for driving the pressing shaft to rotate, the outer end of the pressing shaft extending out of the pressing cage, and a shaft sleeve arranged on the machine base and matched with the pressing shaft, an inner blanking cap and an outer blanking cap are arranged on the two sides of the shaft sleeve respectively, an inner bearing and an outer bearing matched with the squeezing shaft are arranged in the shaft sleeve, an oil filling channel is formed in the shaft sleeve, the inner side of the oil filling channel leads to the inner bearing, and a first oil filling port is formed in the outer end of the oil filling channel. The two bearings are arranged at the outer end of the pressing shaft to be matched with the machine base, lubricating oil can be added to the bearings through the oil filling channel, friction force generated when the bearings bear axial force is reduced, abrasion of the bearings is reduced, loads of an oil pressing motor are reduced, and normal use of the oil press is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil presses, in particular to an oil press capable of lubricating a bearing pair. Background Art

[0002] During the oil pressing process, the pressing shaft and pressing screw of the oil press will squeeze the oil material, and the pressing shaft and pressing screw will be subjected to the reverse extrusion force of the oil material along the axial direction. The pressing shaft is connected to the machine base through bearings. The axial force on the pressing shaft will directly act on the bearings, which requires high strength of the bearings. At present, thrust ball bearings are used to withstand the axial force. However, when this type of bearing is subjected to the axial force, the friction between the pressing shaft, bearings and machine base is also large, which increases the load of the oil pressing motor and affects the normal use of the oil press as a whole. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide an oil press capable of lubricating a bearing pair, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an oil press with a lubricable bearing pair, including a machine base, a pressing cage is arranged on the machine base, a pressing shaft is arranged in the pressing cage, a pressing screw is arranged on the pressing shaft, a lower hopper and a driving device for driving the pressing shaft to rotate are arranged on the outside of the pressing cage, the outer end of the pressing shaft protrudes from the pressing cage, a shaft sleeve is arranged on the machine base to cooperate with the pressing shaft, an inner plugging cover and an outer plugging cover are respectively arranged on both sides of the shaft sleeve, an inner bearing and an outer bearing are arranged in the shaft sleeve to cooperate with the pressing shaft, an oil filling channel is arranged in the shaft sleeve, the inner side of the oil filling channel leads to the inner bearing, and a first oil filling port is arranged at the outer end of the oil filling channel.

[0005] Furthermore, a positioning platform is provided on the inner side of the shaft sleeve to cooperate with the inner bearing, a distance sleeve is provided between the inner bearing and the pressing screw, the inner plugging cover is provided on the outer periphery of the distance sleeve, and a first sealing ring is provided between the inner plugging cover and the distance sleeve.

[0006] Furthermore, the outer plugging cover is on the outer side of the outer bearing, the pressing shaft is provided with a limiting member for axially limiting the pressing shaft and the outer bearing, and the outer plugging cover is provided with a second oil filling port for filling oil into the outer bearing.

[0007] Furthermore, the limiting member is a nut combination screwed to the outer end of the press shaft.

[0008] Furthermore, the shaft sleeve is axially adjustable on the machine base, and a locking device for limiting the shaft sleeve and the machine base is provided on the shaft sleeve.

[0009] Furthermore, the shaft sleeve is threadedly connected to the machine base, a first handle is arranged on the shaft sleeve, and the locking device is a locking disk threadedly connected to the outer periphery of the shaft sleeve, a second handle is arranged on the locking disk.

[0010] The above technical scheme of the utility model has the following beneficial effects: the utility model arranges two bearings at the outer end of the pressing shaft to cooperate with the machine base, and lubricating oil can be added to the bearings through the oil filling channel, thereby reducing the friction generated when the bearings are subjected to axial force, reducing the wear of the bearings, reducing the load of the oil pressing motor, and ensuring the normal use of the oil pressing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0013] The following is a detailed description of the preferred implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0014] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0015] like Figure 1-2As shown, an oil press with lubricable bearing pair described in this embodiment includes a machine base 1, a pressing cage 2 is arranged on the machine base 1, a pressing shaft 3 is arranged in the pressing cage 2, a pressing screw 4 is arranged on the pressing shaft 3, a lower hopper 5 and a driving device 6 for driving the pressing shaft 3 to rotate are arranged on the outer side of the pressing cage 2, the outer end of the pressing shaft 3 protrudes out of the pressing cage 2, a shaft sleeve 7 is arranged on the machine base 1 to match the pressing shaft 3, an inner plugging cover 8 and an outer plugging cover 9 are respectively arranged on both sides of the shaft sleeve 7, an inner bearing 10 and an outer bearing 11 are arranged in the shaft sleeve 7 to match the pressing shaft 3, an oil filling passage 12 is arranged in the shaft sleeve 7, the inner side of the oil filling passage 12 leads to the inner bearing 10, and a first oil filling passage 12 is arranged at the outer end of the oil filling passage 12. Oil port 13; In this embodiment, the driving device 6 is a reduction motor, which drives the pressing shaft 3 and the pressing screw 4 to rotate, and squeezes the oil in the pressing cage 2. When the pressing screw 4 squeezes the oil, the oil has an axial reaction force on the pressing screw 4 and the pressing shaft 3, and the reaction force pulls the pressing shaft 3. The axial force acts on the inner bearing 10 and the outer bearing 11. The first oil filling port 13 can add lubricating oil to the oil filling channel 12, and the lubricating oil flows to the inner bearing 10 to lubricate the inner bearing 10, reduce the friction generated when the bearing is subjected to the axial force, reduce the wear of the bearing, reduce the load of the oil pressing motor, and ensure the normal use of the oil press;

[0016] Preferably, a positioning platform is provided on the inner side of the sleeve 7 to cooperate with the inner bearing 10, a distance sleeve 14 is provided between the inner bearing 10 and the pressing screw 4, an inner plugging cover 8 is provided on the outer periphery of the distance sleeve 14, and a first sealing ring 15 is provided between the inner plugging cover 8 and the distance sleeve 14; the distance sleeve 14 plays a positioning role between the inner bearing 10 and the pressing screw 4 and the pressing shaft 3, the inner plugging cover 8 is blocked on the inner side of the sleeve 7, so that a cavity is formed at the inner bearing 10, and the lubricating oil added at the first refueling port 13 can be sealed in the cavity of the inner bearing 10, thereby playing a lubricating role on the inner bearing 10;

[0017] Preferably, the outer plugging cover 9 covers the outer side of the outer bearing 11, and a limiting member 16 for axially limiting the pressing shaft 3 and the outer bearing 11 is provided on the pressing shaft 3. A second refueling port 17 for refueling the outer bearing 11 is provided on the outer plugging cover 9. Lubricating oil can be added to the outer plugging cover 9 at the second refueling port 17 to lubricate the outer bearing 11; wherein the limiting member 16 can axially limit the pressing shaft 3 and the outer bearing 11 to prevent the pressing shaft 3 from axially moving;

[0018] Preferably, the stopper 16 is a nut assembly screwed to the outer end of the pressing shaft 3. In this embodiment, two nuts are screwed to the outer end of the pressing shaft 3, and the nuts are pressed on the outer bearing 11. Preferably, a washer can be arranged between the nut and the outer bearing 11.

[0019] Preferably, the shaft sleeve 7 is axially adjustable and arranged on the machine base 1. A locking device for limiting the shaft sleeve 7 and the machine base 1 is arranged on the shaft sleeve 7. The shaft sleeve 7 can drive the pressing shaft 3 to adjust the axial position, that is, the gap width between the pressing screw 4 and the cake outlet end of the pressing cage 2 can be adjusted, and the cake outlet width can be adjusted, thereby adjusting the oil pressing pressure;

[0020] Preferably, the sleeve 7 is screwed onto the machine base 1, a first handle 18 is provided on the sleeve 7, the locking device is a locking disk 19 screwed onto the outer periphery of the sleeve 7, a second handle 20 is provided on the locking disk 19, rotating the first handle 18 can drive the sleeve 7 to rotate, and axially adjust the position of the sleeve 7, after the position of the sleeve 7 is determined, the second handle 20 is rotated to make the locking disk 19 close to the machine base 1, thereby fixing the position of the sleeve 7.

[0021] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An oil press with a lubricable bearing pair, comprising a machine base, a pressing cage is arranged on the machine base, a pressing shaft is arranged in the pressing cage, a pressing screw is arranged on the pressing shaft, a lower hopper and a driving device for driving the pressing shaft to rotate are arranged outside the pressing cage, characterized in that: The outer end of the pressing shaft protrudes out of the pressing cage, and a shaft sleeve is arranged on the machine base to cooperate with the pressing shaft. An inner plugging cover and an outer plugging cover are respectively arranged on both sides of the shaft sleeve. An inner bearing and an outer bearing are arranged in the shaft sleeve to cooperate with the pressing shaft. An oil filling channel is arranged in the shaft sleeve, and the inner side of the oil filling channel leads to the inner bearing. A first oil filling port is arranged at the outer end of the oil filling channel.

2. The oil press with lubricable bearing pair according to claim 1, characterized in that: The inner side of the shaft sleeve is provided with a positioning platform to cooperate with the inner bearing, a distance sleeve is provided between the inner bearing and the pressing screw, the inner plugging cover is provided on the outer periphery of the distance sleeve, and a first sealing ring is provided between the inner plugging cover and the distance sleeve.

3. The oil press with lubricable bearing pair according to claim 1, characterized in that: The outer plugging cover is on the outer side of the outer bearing, the pressing shaft is provided with a limiting member for axially limiting the pressing shaft and the outer bearing, and the outer plugging cover is provided with a second oil filling port for filling oil to the outer bearing.

4. The oil press with lubricable bearing pair according to claim 3, characterized in that: The limiting member is a nut assembly threadedly connected to the outer end of the press shaft.

5. The oil press with lubricable bearing pair according to claim 1, characterized in that: The shaft sleeve is axially adjustable and arranged on the machine base, and a locking device for limiting the position of the shaft sleeve and the machine base is arranged on the shaft sleeve.

6. The oil press with lubricable bearing pair according to claim 5, characterized in that: The shaft sleeve is threadedly connected to the machine base, a first turning handle is arranged on the shaft sleeve, and the locking device is a locking disk threadedly connected to the outer periphery of the shaft sleeve, a second turning handle is arranged on the locking disk.

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