Bearing transmission structure of hydraulic cone crusher for mining

Abstract

The utility model discloses a hydraulic cone crusher bearing transmission structure for mining, which comprises a main shaft and an oil drum below the main shaft, the surface of the main shaft is sleeved with a ball bearing, and the outer ring of the ball bearing is sleeved with a bowl-shaped oil box; according to the lubricating and cooling device for the bearing transmission structure of the crusher, the bowl-shaped oil box and the oil drum in threaded connection are adopted to form the lubricating and cooling device, the oil supply pump in the oil drum is started, so that lubricating oil is guided into the oil spraying pipe from the oil supply pipe and then sprayed out from the two oil spraying nozzles of the oil spraying pipe, and the lubricating oil penetrates through the through hole to enter the ball bearing; and in the process, cooling liquid circularly passes through a liquid inlet pipe, a spiral heat exchange pipe and a liquid outlet pipe under the action of an external circulating pump, so that the lubricating oil passing through the ball bearing is recovered into an oil drum, and the lubricating oil is recovered into the oil drum through the spiral heat exchange pipe and the liquid outlet pipe. And lubricating oil in the oil drum can be continuously cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher bearings, in particular to a bearing drive structure of a hydraulic cone crusher for mine exploitation. Background Art

[0002] A cone crusher is a kind of crushing machinery suitable for raw materials in the metallurgy, construction, road construction, chemical and silicate industries. According to different crushing principles and different particle sizes of products, it is divided into many models. Crushers are widely used in many departments such as mines, smelting, building materials, highways, railways, water conservancy and chemical industries. The cone crusher has a large crushing ratio, high efficiency, low energy consumption, and uniform product particle size, and is suitable for medium crushing and fine crushing of various ores and rocks. The models are mainly divided into SMG series, spring type and HPC series. The bearings connected to the main shaft of the cone crusher bear a large gravity. When the rotating shaft works for a long time, it will cause the temperature of the bearings connected to it to rise. If the bearing temperature does not drop for a long time, it will reduce the service life of the equipment, and it will also increase the production energy consumption.

[0003] In the prior art, the published patent No. CN114934955B discloses a bearing drive structure of a hydraulic cone crusher for mine exploitation. In this solution, a lubrication mechanism is installed. The lubrication mechanism drives a reciprocating screw to rotate through the rotation of the main shaft, so that the oil pushing plate moves upward, and the lubricating oil is introduced into the bearing for lubrication. However, since the cooling structure of the lubricating oil is not disclosed in this solution, during the continuous lubrication of the bearing, the lubricating oil may lose its cooling effect, which will have an adverse impact on the use of the bearing drive structure of the cone crusher.

[0004] Therefore, a bearing drive structure of a hydraulic cone crusher for mine exploitation is proposed, which has the advantages of facilitating continuous lubrication and cooling of the bearing, and thus solves the problems in the above background art. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and a bearing drive structure of a hydraulic cone crusher for mine exploitation is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the mining uses a hydraulic cone crusher bearing transmission structure, including a main shaft and an oil barrel below it, the surface of the main shaft is sleeved with a ball bearing, and the outer ring of the ball bearing is sleeved with a bowl-shaped oil box, an oil spray pipe is arranged inside the bowl-shaped oil box, and two oil spray nozzles are fixed on the surface of the oil spray pipe corresponding to the ball bearing, an oil leakage hole is opened at the bottom of the bowl-shaped oil box, and a circular filter is embedded in the oil leakage hole, a threaded ring is welded on the periphery of the oil leakage hole of the bowl-shaped oil box, and the outer surface of the threaded ring is welded with a threaded ring. An installation foot welded to the bottom surface of the bowl-shaped oil box is arranged around, an oil barrel is arranged below the main shaft, and a threaded nozzle threadedly connected to the threaded ring is arranged on the top surface of the oil barrel, a spiral heat exchange tube is arranged inside the oil barrel, and the left end of the spiral heat exchange tube passes through the oil barrel and is connected to a liquid inlet pipe, and the left end of the spiral heat exchange tube passes through the oil barrel and is connected to a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to an externally installed coolant storage tank, an oil supply pump is arranged at the bottom inside the oil barrel, and the oil outlet of the oil supply pump is connected to an oil supply pipe, and one end of the oil supply pipe is connected to the fuel injection pipe through a threaded joint.

[0007] As a further description of the above technical solution: a dust cover is provided at the opening of the top surface of the bowl-shaped oil box, and the middle part of the dust cover corresponds to the main shaft quick-release hole.

[0008] As a further description of the above technical solution: the mounting foot is an L-shaped structure as a whole, and a mounting hole is provided at the bottom of the mounting foot.

[0009] As a further description of the above technical solution: the inner wall of the threaded mouth is provided with an internal thread, and the outer wall of the threaded ring is provided with an external thread corresponding to the internal thread.

[0010] As a further description of the above technical solution: heat-resistant rubber sleeves are respectively mounted on both sides of the ball bearing, and a plurality of through holes are opened around the end surface of the heat-resistant rubber sleeve.

[0011] As a further description of the above technical solution: an eccentric device is fixedly installed on the top of the main shaft, and the eccentric device is externally connected to a conical crushing head.

[0012] As a further description of the above technical solution: an arc portion is provided at one end of the oil injection pipe extending to the inside of the bowl-shaped oil box, and the arc portion is arranged on the periphery of the main shaft, and an oil injection nozzle is provided on both sides of the arc portion.

[0013] The utility model has the following beneficial effects:

[0014] In the present utility model, a lubricating and cooling device for the bearing drive structure of a crusher is composed of a bowl-shaped oil box and a screw-connected oil barrel. By starting the oil supply pump in the oil barrel, the lubricating oil is forced to be introduced from the oil supply pipe into the spray pipe, and then sprayed out from the two spray nozzles of the spray pipe, so that the lubricating oil passes through the through holes and enters the inside of the ball bearing. Until the lubricating oil passing through the ball bearing transitions into the bowl-shaped oil box, and then is recycled into the oil barrel after being filtered by the oil leakage holes and the circular filter screen. During this process, by circulating the coolant through the liquid inlet pipe, the spiral heat exchange pipe and the liquid outlet pipe under the action of an external circulation pump, the lubricating oil in the oil barrel can be continuously cooled, which is beneficial to the continuous lubrication of the ball bearing and also convenient for the continuous cooling of the ball bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the bearing drive structure of a hydraulic cone crusher for mining in the present utility model;

[0016] Figure 2 is a schematic internal structure diagram of the oil barrel of the bearing drive structure of a hydraulic cone crusher for mining in the present utility model;

[0017] Figure 3 is a schematic structural diagram of the ball bearing of the bearing drive structure of a hydraulic cone crusher for mining in the present utility model.

[0018] Legend:

[0019] 1. Main shaft; 2. Eccentric device; 3. Bowl-shaped oil box; 4. Dust cover; 5. Installation support feet; 6. Oil barrel; 7. Threaded ring; 8. Oil supply pump; 9. Spiral heat exchange pipe; 10. Ball bearing; 11. Heat-resistant rubber sleeve; 12. Spray pipe; 13. Spray nozzle; 14. Oil leakage hole; 15. Circular filter screen; 16. Oil supply pipe; 17. Threaded nozzle; 18. Liquid inlet pipe; 19. Liquid outlet pipe; 20. Through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] According to the embodiments of the present utility model, a bearing drive structure of a hydraulic cone crusher for mining is provided.

[0022] Now, the present utility model will be further described in conjunction with the accompanying drawings and specific embodiments. As Figures 1-3As shown in the figure, the bearing drive structure of the hydraulic cone crusher for mine exploitation according to the embodiment of the present utility model includes a main shaft 1 and an oil barrel 6 below it. A ball bearing 10 is sleeved and installed on the surface of the main shaft 1, and a bowl-shaped oil box 3 is sleeved and installed on the outer ring of the ball bearing 10. Spray pipes 12 are arranged inside the bowl-shaped oil box 3, and two spray nozzles 13 are fixed on the surface of the spray pipes 12 corresponding to the ball bearing 10. An oil leakage hole 14 is opened at the bottom of the bowl-shaped oil box 3, and a circular filter screen 15 is embedded in the oil leakage hole 14. A threaded ring 7 is welded around the oil leakage hole 14 of the bowl-shaped oil box 3, and mounting feet 5 welded to the bottom surface of the bowl-shaped oil box 3 are arranged around the threaded ring 7. An oil barrel 6 is arranged below the main shaft 1, and a threaded nozzle 17 threadedly connected to the threaded ring 7 is arranged on the top surface of the oil barrel 6. Spiral heat exchange pipes 9 are arranged inside the oil barrel 6, and the left end of the spiral heat exchange pipe 9 penetrates through the oil barrel 6 and is connected to a liquid inlet pipe 18, and the left end of the spiral heat exchange pipe 9 penetrates through the oil barrel 6 and is connected to a liquid outlet pipe 19. The liquid inlet pipe 18 and the liquid outlet pipe 19 are respectively connected to an externally installed coolant storage tank. A fuel supply pump 8 is arranged at the inner bottom of the oil barrel 6, and a fuel supply pipe 16 is connected to the outlet of the fuel supply pump 8. One end of the fuel supply pipe 16 is connected to the spray pipe 12 through a threaded joint. In this patent, we only use the fuel supply pump 8 and do not improve its structure and function. Its setting method, installation method and electrical connection method can be debugged and operated by those skilled in the art as long as they follow the requirements of its user manual, so it will not be elaborated here. And the fuel supply pump 8 is provided with a control switch matching it, and the installation position of the control switch is selected according to actual use requirements to facilitate operation and control by the operator. In order to facilitate the circulating flow of the coolant (specifically cold water), the inlet and outlet of the externally installed coolant storage tank are respectively connected to the liquid inlet pipe 18 and the liquid outlet pipe 19, and a circulation pump is arranged on the coolant circulation pipe;

[0023] In one embodiment, a dust-proof cover 4 is arranged at the opening on the top surface of the bowl-shaped oil box 3, and a quick-recession hole corresponding to the main shaft 1 is arranged in the middle of the dust-proof cover 4. Through the arrangement of the dust-proof cover 4, the lubricating oil is prevented from being polluted. Among them, the dust-proof cover 4 is magnetically adsorbed and connected to the support block with a magnet on the inner wall of the bowl-shaped oil box 3.

[0024] In one embodiment, the whole mounting foot 5 is in an L-shaped structure, and mounting holes are opened at the bottom of the mounting foot 5. Through the arrangement of the mounting foot 5, the fixed installation of the bowl-shaped oil box 3 is facilitated, and support is provided for the main shaft 1.

[0025] In one embodiment, internal threads are arranged on the inner wall of the threaded nozzle 17, and external threads corresponding to the internal threads are arranged on the outer wall of the threaded ring 7. Through the arrangement of the threaded nozzle 17 and the threaded ring 7, the oil barrel 6 can be detached, so as to facilitate the maintenance and replacement of the oil barrel 6.

[0026] In one embodiment, heat-resistant rubber sleeves 11 are sleeved and installed on both sides of the ball bearing 10, and a number of through holes 20 are formed around the end faces of the heat-resistant rubber sleeves 11. The heat-resistant rubber sleeves 11 can prevent external impurities from entering the interior of the ball bearing 10, and the number of through holes 20 facilitates the passage of lubricating oil.

[0027] In one embodiment, an eccentric device 2 is fixedly installed at the top of the main shaft 1, and a conical crushing head is externally connected to the eccentric device 2 to facilitate stone crushing. This is a well-known prior art and will not be elaborated further.

[0028] In one embodiment, the end of the oil spray pipe 12 extending into the pot-shaped oil box 3 is provided with an arc portion, and the arc portion is arranged around the main shaft 1. One oil spray nozzle 13 is provided on each side of the arc portion. Through the two oil spray nozzles 13, the lubrication range of the ball bearing 10 can be increased, which is beneficial to improving the lubrication effect and the cooling effect.

[0029] Working principle:

[0030] During use, first, the device is installed at a suitable position by passing bolts through the mounting feet 5. Then, the eccentric device 2 of the main shaft 1 is connected to the conical crushing head, and the tooth surface provided on the lower surface of the eccentric device 2 is meshed and connected with an external driving device. When the main shaft 1 rotates for a long time and causes the bearing to overheat, by starting the oil supply pump 8 in the oil barrel 6, the lubricating oil is guided from the oil supply pipe 16 into the oil spray pipe 12 and then sprayed out by the two oil spray nozzles 13 of the oil spray pipe 12, so that the lubricating oil passes through the through holes 20 and enters the interior of the ball bearing 10. Until the lubricating oil passing through the ball bearing 10 transitions into the pot-shaped oil box 3, and then is recycled into the oil barrel 6 after being filtered by the oil leakage holes 14 and the circular filter screen 15. During this process, the coolant is circulated through the liquid inlet pipe 18, the spiral heat exchange pipe 9 and the liquid outlet pipe 19 under the action of an external circulation pump to continuously cool the lubricating oil in the oil barrel 6, preventing the ball bearing 10 from being damaged due to overheating for a long time.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Hydraulic cone crusher bearing drive structure for mine exploitation, including a main shaft (1) and an oil barrel (6) below it, characterized in that: A ball bearing (10) is sleeved and installed on the surface of the main shaft (1), and a bowl-shaped oil box (3) is sleeved and installed on the outer ring of the ball bearing (10). An oil injection pipe (12) is arranged inside the bowl-shaped oil box (3), and two oil injection nozzles (13) are fixed on the surface of the oil injection pipe (12) corresponding to the ball bearing (10). An oil leakage hole (14) is opened at the bottom of the bowl-shaped oil box (3), and a circular filter (15) is embedded and installed in the oil leakage hole (14). A threaded ring (7) is welded to the periphery of the oil leakage hole (14) of the bowl-shaped oil box (3), and a mounting foot (5) welded to the bottom surface of the bowl-shaped oil box (3) is arranged at the periphery of the threaded ring (7). The main shaft (1) is provided below An oil barrel (6) is provided with a threaded nozzle (17) threadedly connected to a threaded ring (7) on the top surface of the oil barrel (6); a spiral heat exchange tube (9) is arranged inside the oil barrel (6); the left end of the spiral heat exchange tube (9) passes through the oil barrel (6) and is connected to a liquid inlet tube (18); and the left end of the spiral heat exchange tube (9) passes through the oil barrel (6) and is connected to a liquid outlet tube (19); the liquid inlet tube (18) and the liquid outlet tube (19) are respectively connected to an externally installed coolant storage tank; an oil supply pump (8) is provided at the bottom inside the oil barrel (6); and the oil outlet of the oil supply pump (8) is connected to an oil supply tube (16); one end of the oil supply tube (16) is connected to an oil injection tube (12) through a threaded joint.

2. The bearing drive structure of the hydraulic cone crusher for mine exploitation according to claim 1, characterized in that: A dust cover (4) is provided at the opening of the top surface of the bowl-shaped oil box (3), and the middle portion of the dust cover (4) corresponds to the quick-release hole of the main shaft (1).

3. The bearing drive structure of the hydraulic cone crusher for mine exploitation according to claim 1, characterized in that: The mounting foot (5) is in an L-shaped structure as a whole, and a mounting hole is provided at the bottom of the mounting foot (5).

4. The bearing drive structure of the hydraulic cone crusher for mine exploitation according to claim 1, wherein: The inner wall of the threaded mouth (17) is provided with an internal thread, and the outer wall of the threaded ring (7) is provided with an external thread corresponding to the internal thread.

5. The bearing drive structure of the hydraulic cone crusher for mine exploitation according to claim 1, wherein: Heat-resistant rubber sleeves (11) are respectively sleeved and installed on both sides of the ball bearing (10), and a plurality of through holes (20) are formed around the end surface of the heat-resistant rubber sleeve (11).

6. The bearing drive structure of the hydraulic cone crusher for mine exploitation according to claim 1, characterized in that: An eccentric device (2) is fixedly mounted on the top of the main shaft (1), and the eccentric device (2) is externally connected to a conical crushing head.

7. The bearing drive structure of the hydraulic cone crusher for mine exploitation according to claim 1, characterized in that: An arc portion is provided at one end of the oil injection pipe (12) extending to the inside of the bowl-shaped oil box (3), and the arc portion is arranged on the periphery of the main shaft (1), and an oil injection nozzle (13) is provided on both sides of the arc portion.

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