CN113048155A - Oil liquid cooling bearing sleeve for machine tool lubricating oil - Google Patents
Oil liquid cooling bearing sleeve for machine tool lubricating oil Download PDFInfo
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- CN113048155A CN113048155A CN202110277209.2A CN202110277209A CN113048155A CN 113048155 A CN113048155 A CN 113048155A CN 202110277209 A CN202110277209 A CN 202110277209A CN 113048155 A CN113048155 A CN 113048155A
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- oil
- bearing
- gear
- bearing sleeve
- machine tool
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
- F16C37/007—Cooling of bearings of rolling bearings
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- General Engineering & Computer Science (AREA)
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- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses an oil cooling bearing sleeve for machine tool lubricating oil, which relates to the technical field of bearing sleeves and comprises a bearing seat mechanism, wherein the bearing seat mechanism comprises a first bearing sleeve and a second bearing sleeve, the first bearing sleeve and the second bearing sleeve are assembled and connected, a bearing is arranged in the first bearing sleeve, a first oil port and a second oil port are respectively arranged on the first bearing sleeve and the second bearing sleeve, the first oil port and the second oil port are connected with an oil circulating mechanism, a half-tooth driving gear is driven to rotate by a driving motor in the oil circulating mechanism, the half-tooth driving gear intermittently drives a driven gear to rotate in the rotating process, the driven gear drives a push rod to do up-and-down reciprocating motion by a connecting rod in the rotating process, the oil is intermittently extracted from a liquid inlet pipe and is pressed into a spiral heat dissipation pipe by a one-way liquid outlet valve, oil finally flows back to the bearing seat mechanism through the liquid outlet pipe after passing through the spiral radiating pipe, and the oil circulation function is achieved.
Description
Technical Field
The invention relates to the technical field of bearing sleeves, in particular to an oil liquid cooling bearing sleeve for machine tool lubricating oil.
Background
The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. The bearing is of various types, including a deep groove ball bearing, which is the most representative rolling bearing. Compared with other types of bearings with the same size, the bearing has the advantages of small friction coefficient, high limit rotating speed, simple structure, low manufacturing cost, high precision, no need of frequent maintenance, large size range and multiple forms, and is the bearing with the widest application. It mainly bears radial load, also can bear certain axial load. When it is subjected to only radial loads, the contact angle is zero. After the deep groove ball bearing is installed on the shaft, the axial displacement of the shaft or the shell in two directions can be limited within the axial play range of the bearing, so that the axial positioning can be carried out in two directions. When the deep groove ball bearing has larger radial play, the deep groove ball bearing has the performance of an angular contact bearing and can bear larger axial load. Under the high-speed operation condition of large axial load, the deep groove ball bearing has more superiority than the thrust ball bearing.
The bearing is generally installed in the bearing frame through the bearing housing to run through the setting with the part in the bearing, the during operation, in the long-time rotation process of part, can produce a large amount of heats because of friction or other modes, among the prior art, the mode of taking to add lubricating oil in the bearing housing usually reduces thermal production, but the cooling effect of this kind of method is limited, need add one set of corresponding fluid circulation system to lubricating oil, increaseing its cooling effect, increase life.
Disclosure of Invention
The invention aims to provide an oil liquid cooling bearing sleeve for machine tool lubricating oil, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an oil cooling bearing sleeve for machine tool lubricating oil comprises a bearing seat mechanism, wherein the bearing seat mechanism comprises a first bearing sleeve and a second bearing sleeve, the first bearing sleeve and the second bearing sleeve are in assembly connection, a bearing is arranged in the first bearing sleeve, a first oil port and a second oil port are respectively arranged on the first bearing sleeve and the second bearing sleeve, the first oil port and the second oil port are connected with an oil circulating mechanism, the oil circulating mechanism comprises a circulating box, a piston cylinder is arranged in the circulating box, a piston head is connected in the piston cylinder in a sliding manner, one surface of the piston head is connected with a gear push rod mechanism, a liquid inlet pipe penetrates through the side wall of the piston cylinder, a one-way liquid inlet valve is arranged in the liquid inlet pipe, a one-way liquid outlet valve is arranged on the surface of the piston cylinder, which is far away from the gear push rod mechanism, and one end of the one-way liquid outlet valve, which is far away from, the one end that the piston cylinder was kept away from to the spiral cooling tube is connected with the drain pipe, the one end that the circulation case was kept away from to the feed liquor pipe is connected with first fluid mouth, the one end that the circulation case was kept away from to the drain pipe is connected with second fluid mouth.
Furthermore, the first bearing sleeve is installed on the bearing seat through a connecting pin, a first connecting port penetrates through the connecting mechanism, and a second connecting port penetrates through the oil circulating mechanism.
Further, the circulation box is a cuboid box-shaped structure, and a gear push rod mechanism is arranged at the top of the circulation box.
Further, gear push rod mechanism includes the gear box, the internal rotation of gear box is connected with half tooth drive gear and driven gear, half tooth drive gear and driven gear meshing are connected, it is connected with the connecting rod to rotate on the gear face of driven gear, the one end that driven gear was kept away from to the connecting rod is connected on the push rod.
Furthermore, the half-tooth driving gear is assembled and connected to the output end of the driving motor, one end, far away from the driven gear, of the push rod penetrates through the wall surfaces of the gear box and the circulating box, and the push rod is fixedly connected with the piston head.
Furthermore, a cooling fan is arranged on the side wall of the side, away from the bearing seat mechanism, of the circulating box.
Further, bearing frame mechanism and fluid circulation mechanism all install on coupling mechanism, coupling mechanism includes mounting plate, mounting plate is last to install threaded rod and slide bar, threaded rod and slide bar are located mounting plate's both sides, mounting plate's the equal through connection of one end is kept away from to threaded rod and slide bar is on hanging the board, hang board and mounting plate parallel arrangement, the one end that mounting plate was kept away from to the threaded rod is connected with the knob.
Further, the two sides of the hanging plate are provided with side wall plates, a plurality of bolt rods are fixedly arranged on the side wall plates, and one ends, far away from the side wall plates, of the bolt rods are connected to the supporting plate in a penetrating mode.
Furthermore, a base mechanism is arranged at the bottom of the connecting mechanism and comprises a base plate, a plurality of groups of cylindrical blocks are arranged on the base plate, one surface, far away from the base plate, of each cylindrical block is in contact with the mounting bottom plate, and damping springs are sleeved on the plurality of groups of cylindrical blocks.
Furthermore, a plurality of groups of cushion pads are arranged on the side wall of the base plate.
Compared with the prior art, the invention has the beneficial effects that: drive half tooth drive gear through driving motor and rotate, half tooth drive gear drives driven gear in the middle of the rotation process intermittent type nature and rotates, driven gear drives the push rod through the connecting rod at the rotation in-process and is reciprocating motion from top to bottom, the push rod drives the piston head and is reciprocating motion from top to bottom in the piston cylinder, intermittently take fluid out from the feed liquor pipe, and impress to the spiral radiating pipe in through one-way drain valve, intermittent type nature's supply, be favorable to the heat dissipation of fluid, fluid finally flows back to the bearing frame mechanism through the drain pipe behind the spiral radiating pipe, realize fluid circulation function.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the bearing seat mechanism of the present invention.
Fig. 3 is a schematic cross-sectional view of a bearing seat mechanism according to the present invention.
Fig. 4 is a schematic structural view of the connecting mechanism and the base mechanism of the present invention.
Fig. 5 is a schematic perspective view of the suspension plate of the present invention.
Fig. 6 is a schematic structural view of the oil circulation mechanism and the gear push rod mechanism in the present invention.
In the figure: 1. a bearing housing mechanism; 11. a bearing; 12. a first bearing sleeve; 13. a second bearing housing; 14. a first connection port; 15. a second connection port; 16. a first oil port; 17. a second oil port; 18. a connecting pin; 19. a bearing seat; 2. a connecting mechanism; 21. mounting a bottom plate; 22. a suspension plate; 23. a side wall panel; 24. a threaded rod; 25. a knob; 26. a slide bar; 27. a latch rod; 28. a support plate; 3. an oil circulating mechanism; 31. a circulation box; 32. a piston cylinder; 33. a piston head; 34. a liquid inlet pipe; 35. a one-way liquid inlet valve; 36. a one-way liquid outlet valve; 37. a spiral radiating pipe; 38. a heat radiation fan; 39. a liquid outlet pipe; 4. a base mechanism; 41. a base plate; 42. a cylindrical block; 43. a damping spring; 44. a cushion pad; 5. a gear push rod mechanism; 51. a gear case; 52. a half-tooth drive gear; 53. a driven gear; 54. a connecting rod; 55. a push rod.
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.
Example 1:
referring to fig. 1, 2, 3 and 6, in an embodiment of the present invention, an oil-cooled bearing housing for machine tool lubricating oil includes a bearing housing mechanism 1, where the bearing housing mechanism 1 includes a first bearing housing 12 and a second bearing housing 13, the first bearing housing 12 and the second bearing housing 13 are assembled and connected, a bearing 11 is disposed inside the first bearing housing 12, a first oil port 16 and a second oil port 17 are respectively disposed on the first bearing housing 12 and the second bearing housing 13, the first oil port 16 and the second oil port 17 are connected to an oil circulation mechanism 3, the oil circulation mechanism 3 includes a circulation tank 31, a piston cylinder 32 is disposed inside the circulation tank 31, a piston head 33 is slidably connected to the piston cylinder 32, one surface of the piston head 33 is connected to a gear push rod mechanism 5, a liquid inlet pipe 34 penetrates through a side wall of the piston cylinder 32, a one-way liquid inlet valve 35 is arranged in the liquid inlet pipe 34, a one-way liquid outlet valve 36 is arranged on one surface, away from the gear push rod mechanism 5, of the piston cylinder 32, one end, away from the piston cylinder 32, of the one-way liquid outlet valve 36 is connected with a spiral radiating pipe 37, one end, away from the piston cylinder 32, of the spiral radiating pipe 37 is connected with a liquid outlet pipe 39, one end, away from the circulation box 31, of the liquid inlet pipe 34 is connected with the first oil liquid port 16, and one end, away from the circulation box 31, of the liquid outlet pipe 39 is connected with the.
The first bearing sleeve 12 is installed on a bearing seat 19 through a connecting pin 18, a first connecting port 14 penetrates through the connecting mechanism 21, and a second connecting port 15 penetrates through the oil circulating mechanism 3 1.
Example 2:
referring to fig. 6, in the embodiment of the present invention, the circulation box 31 is a rectangular box-shaped structure, and a gear push rod mechanism 5 is disposed at the top of the circulation box 31.
The gear push rod mechanism 5 comprises a gear box 51, a half-tooth driving gear 52 and a driven gear 53 are rotatably connected to the interior of the gear box 51, the half-tooth driving gear 52 is meshed with the driven gear 53, a connecting rod 54 is rotatably connected to the gear surface of the driven gear 53, and one end, far away from the driven gear 53, of the connecting rod 54 is connected to a push rod 55.
The half-tooth driving gear 52 is assembled and connected on the output end of the driving motor, one end of the push rod 55 far away from the driven gear 53 penetrates through the gear box 51 and the wall surface of the circulating box 31, and the push rod 55 is fixedly connected with the piston head 33. The driving motor drives the half-tooth driving gear 52 to rotate, the half-tooth driving gear 52 drives the driven gear 53 to rotate intermittently in the rotating process, the driven gear 53 drives the push rod 55 to do up-and-down reciprocating motion through the connecting rod 54 in the rotating process, the push rod 55 drives the piston head 33 to do up-and-down reciprocating motion in the piston cylinder 32, oil is intermittently pumped out of the liquid inlet pipe 34 and is pressed into the spiral radiating pipe 37 through the one-way liquid outlet valve 36, intermittent supply is facilitated, heat dissipation of the oil is facilitated, the oil finally flows back into the bearing seat mechanism 1 through the liquid outlet pipe 39 after passing through the spiral radiating pipe 37, and the oil circulating function is achieved.
A side wall of the circulation box 31 on the side far away from the bearing seat mechanism 1 is provided with a heat radiation fan 38. By arranging the heat dissipation fan 38, the heat dissipation rate of the spiral heat dissipation pipe 37 is accelerated, the cooling performance of the oil liquid is improved, and the service life of the bearing seat mechanism 1 is prolonged.
Example 3:
referring to fig. 1, 4 and 5, in the embodiment of the present invention, the bearing block mechanism 1 and the oil circulating mechanism 3 are both installed on the connecting mechanism 2, the connecting mechanism 2 includes an installation bottom plate 21, a threaded rod 24 and a sliding rod 26 are installed on the installation bottom plate 21, the threaded rod 24 and the sliding rod 26 are located on two sides of the installation bottom plate 21, one ends of the threaded rod 24 and the sliding rod 26, which are far away from the installation bottom plate 21, are both connected to the suspension plate 22 in a penetrating manner, the suspension plate 22 is arranged in parallel with the installation bottom plate 21, and one end of the threaded rod 24, which is far away from the installation bottom plate 21, is connected to.
The side wall plates 23 are mounted on two sides of the suspension plate 22, a plurality of plug pins 27 are fixedly arranged on the side wall plates 23, and one ends of the plug pins 27 far away from the side wall plates 23 are connected to the supporting plate 28 in a penetrating mode. Through the wrench movement knob 25, the threaded rod 24 is controlled to rotate, the mounting base plate 21 connected with the threaded rod 24 is driven to move on a vertical horizontal plane, the sliding rod 26 plays a role in limiting and positioning, the movement of the bearing seat mechanism 1 in the horizontal plane can be realized, the mounting connection of the bearing seat mechanism 1 and a mechanical part is facilitated, and the mounting device is convenient and practical.
Example 4:
referring to fig. 4, on the basis of embodiment 1, a base mechanism 4 is disposed at the bottom of the connecting mechanism 2, the base mechanism 4 includes a base plate 41, a plurality of sets of cylindrical blocks 42 are disposed on the base plate 41, one side of the cylindrical blocks 42 away from the base plate 41 contacts with the installation bottom plate 21, and a damping spring 43 is sleeved on each of the plurality of sets of cylindrical blocks 42.
The side walls of the base plate 41 are provided with a plurality of sets of cushioning pads 44. The mechanical parts can generate vibration during working by using the bearing sleeves, the vibration collision generated at two sides of the installation bottom plate 21 is buffered by the buffer pads 44 arranged on the side walls of the base plate 41, and the longitudinal vibration of the installation bottom plate 21 is buffered by the cylindrical blocks 42 and the damping springs 43 arranged on the base plate 41.
The working principle of the invention is as follows: the driving motor drives the half-tooth driving gear 52 to rotate, the half-tooth driving gear 52 drives the driven gear 53 to rotate intermittently in the rotating process, the driven gear 53 drives the push rod 55 to do up-and-down reciprocating motion through the connecting rod 54 in the rotating process, the push rod 55 drives the piston head 33 to do up-and-down reciprocating motion in the piston cylinder 32, oil is intermittently pumped out of the liquid inlet pipe 34 and is pressed into the spiral radiating pipe 37 through the one-way liquid outlet valve 36, intermittent supply is facilitated, heat dissipation of the oil is facilitated, the oil finally flows back into the bearing seat mechanism 1 through the liquid outlet pipe 39 after passing through the spiral radiating pipe 37, and the oil circulating function is achieved.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an oil cooling bearing housing for lathe lubricating oil, includes bearing housing mechanism (1), its characterized in that, bearing housing mechanism (1) includes first bearing housing (12) and second bearing housing (13), first bearing housing (12) and second bearing housing (13) be assembled between/be connected, the inside of first bearing housing (12) is provided with bearing (11), be provided with first fluid port (16) and second fluid port (17) on first bearing housing (12) and second bearing housing (13) respectively, first fluid port (16) and second fluid port (17) are connected with oil circulation mechanism (3), oil circulation mechanism (3) are including circulation case (31), the inside of circulation case (31) is provided with piston cylinder (32), sliding connection has piston head (33) in piston cylinder (32), the one side of piston head (33) is connected with gear push rod mechanism (5), run through on the lateral wall of piston cylinder (32) and be provided with feed liquor pipe (34), be provided with one-way feed liquor valve (35) in feed liquor pipe (34), be provided with one-way drain valve (36) on the one side that gear push rod mechanism (5) were kept away from in piston cylinder (32), the one end that piston cylinder (32) were kept away from in one-way drain valve (36) is connected with spiral cooling tube (37), the one end that piston cylinder (32) were kept away from in spiral cooling tube (37) is connected with drain pipe (39), the one end that circulation case (31) were kept away from in feed liquor pipe (34) is connected with first oil liquid mouth (16), the one end that circulation case (31) were kept away from in drain pipe (39) is connected with second oil liquid mouth (.
2. The oil-cooled bearing sleeve for the lubricating oil of the machine tool is characterized in that the first bearing sleeve (12) is installed on a bearing seat (19) through a connecting pin (18), a first connecting port (14) is arranged on the connecting mechanism (2) in a penetrating mode, and a second connecting port (15) is arranged on the oil circulating mechanism (3) in a penetrating mode.
3. The oil-cooled bearing sleeve for the machine tool lubricating oil according to claim 1, characterized in that the circulating box (31) is of a rectangular box-shaped structure, and a gear push rod mechanism (5) is arranged at the top of the circulating box (31).
4. The oil cooling bearing sleeve for the lubricating oil of the machine tool is characterized in that the gear push rod mechanism (5) comprises a gear box (51), a half-tooth driving gear (52) and a driven gear (53) are rotatably connected inside the gear box (51), the half-tooth driving gear (52) is meshed with the driven gear (53), a connecting rod (54) is rotatably connected to the gear surface of the driven gear (53), and one end, far away from the driven gear (53), of the connecting rod (54) is connected to a push rod (55).
5. The oil-cooled bearing bush for lubricating oil of machine tools as claimed in claim 4, characterized in that the half-tooth drive gear (52) is assembled and connected to the output end of the drive motor, the end of the push rod (55) far away from the driven gear (53) penetrates through the gear box (51) and the wall surface of the circulation box (31), and the push rod (55) is fixedly connected with the piston head (33).
6. An oil-cooled bearing housing for a machine tool lubricating oil according to claim 3, characterized in that a side wall of the circulation box (31) on the side away from the bearing block mechanism (1) is provided with a heat radiation fan (38).
7. The oil cooling bearing sleeve for the machine tool lubricating oil is characterized in that the bearing seat mechanism (1) and the oil circulating mechanism (3) are both installed on the connecting mechanism (2), the connecting mechanism (2) comprises a mounting bottom plate (21), a threaded rod (24) and a sliding rod (26) are installed on the mounting bottom plate (21), the threaded rod (24) and the sliding rod (26) are located on two sides of the mounting bottom plate (21), one ends, far away from the mounting bottom plate (21), of the threaded rod (24) and the sliding rod (26) are both connected to the suspension plate (22) in a penetrating mode, the suspension plate (22) and the mounting bottom plate (21) are arranged in parallel, and one end, far away from the mounting bottom plate (21), of the threaded rod (24) is connected with a knob (25).
8. The oil-cooled bearing bush for the lubricating oil of the machine tool according to claim 7, wherein the side wall plates (23) are mounted on two sides of the suspension plate (22), a plurality of plug rods (27) are fixedly arranged on the side wall plates (23), and one ends of the plug rods (27) far away from the side wall plates (23) are connected to the supporting plate (28) in a penetrating manner.
9. The oil-cooled bearing sleeve for the lubricating oil of the machine tool according to claim 7, characterized in that the base mechanism (4) is arranged at the bottom of the connecting mechanism (2), the base mechanism (4) comprises a base plate (41), a plurality of groups of cylindrical blocks (42) are arranged on the base plate (41), one surface of each cylindrical block (42) far away from the base plate (41) is in contact with the mounting base plate (21), and a damping spring (43) is sleeved on each group of cylindrical blocks (42).
10. The oil-cooled bearing sleeve for machine tool lubricating oil according to claim 9, characterized in that the side walls of the base plate (41) are provided with sets of cushions (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277209.2A CN113048155A (en) | 2021-03-15 | 2021-03-15 | Oil liquid cooling bearing sleeve for machine tool lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277209.2A CN113048155A (en) | 2021-03-15 | 2021-03-15 | Oil liquid cooling bearing sleeve for machine tool lubricating oil |
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| Publication Number | Publication Date |
|---|---|
| CN113048155A true CN113048155A (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110277209.2A Pending CN113048155A (en) | 2021-03-15 | 2021-03-15 | Oil liquid cooling bearing sleeve for machine tool lubricating oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810839A (en) * | 2021-09-30 | 2022-07-29 | 中维化纤股份有限公司 | Bearing protection device for high-speed operation of drafting roller |
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| CN211289512U (en) * | 2020-07-13 | 2020-08-18 | 山东首景辉光电科技有限公司 | Aircraft bearing lubricating structure |
| CN211343768U (en) * | 2019-12-25 | 2020-08-25 | 唐山金丰收饲料有限公司 | Feed grinder's bearing frame lubricating cooling system |
| CN212155503U (en) * | 2020-05-25 | 2020-12-15 | 连云港市赣榆榆翔机械有限公司 | Multifunctional bearing seat |
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2021
- 2021-03-15 CN CN202110277209.2A patent/CN113048155A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050281687A1 (en) * | 2004-05-15 | 2005-12-22 | Karl Frauhammer | Bearing device and fan apparatus |
| CN105570651A (en) * | 2016-01-12 | 2016-05-11 | 华北水利水电大学 | Mechanical automatic lubrication system for friction pairs of external locking mechanism for railway turnout |
| CN106931040A (en) * | 2017-04-03 | 2017-07-07 | 响水县自行车三套轴有限公司 | One kind has automatic oiling function bearing block |
| CN206890050U (en) * | 2017-07-21 | 2018-01-16 | 漯河市福沃液压件有限公司 | A kind of automatic lubrication installation for hydraulic tube braider |
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| CN211343768U (en) * | 2019-12-25 | 2020-08-25 | 唐山金丰收饲料有限公司 | Feed grinder's bearing frame lubricating cooling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114810839A (en) * | 2021-09-30 | 2022-07-29 | 中维化纤股份有限公司 | Bearing protection device for high-speed operation of drafting roller |
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Application publication date: 20210629 |
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