System for prolonging service life of bearing of four-roller stone cutting machine

Abstract

The utility model discloses a system for prolonging the service life of a bearing of a four-roller stone cutting machine. The system comprises a main shaft, a bearing system, a gland system and an oil circulation system, the bearing system and the gland system are arranged on the surface of the main shaft; the bearing system is arranged in the gland system; both the gland system and the bearing system are provided with the oil circulation systems; the oil circulation system can lubricate and cool the bearing system. According to the stone cutting machine, the bearing of the stone cutting machine is lubricated and cooled through the lubricating oil, abrasion of the bearing of the stone cutting machine is reduced, the bearing is cooled, and the service life of the machine is prolonged.

Description

Technical Field

[0001] The utility model relates to a system for improving the bearing life of a four-roller stone cutting machine, belonging to the technical field of stone cutting. Background Art

[0002] Diamond wire is a cutting tool made of a metal wire with an outer layer of electroplated diamond. In industry, many hard stones are cut with diamond wire, and the cutting assembly is an important part of the stone cutting machine. In the cutting assembly, the main wheel is the main working part.

[0003] Prior art CN116021657A discloses a new type of cutting assembly and multi-wire cutting machine, in which the main wheel has a high speed and reciprocates, causing the bearing supporting the main wheel to be prone to high temperature and wear. It is usually not cooled or cooled by water, resulting in a short service life of the bearing. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a system for improving the bearing life of a four-roller stone cutting machine, which solves the problem that the main wheel is subjected to high temperature and wear during use, resulting in a low bearing life of the main wheel.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions: a system for improving the bearing life of a four-roller stone cutting machine, comprising:

[0006] Spindle, bearing system, gland system, oil circulation system,

[0007] The main shaft surface is provided with the bearing system and the gland system; the bearing system is arranged in the gland system; the gland system and the bearing system are both provided with the oil circulation system;

[0008] The oil circulation system is capable of lubricating and cooling the bearing system.

[0009] Preferably, the bearing system comprises at least two spindle bearings and a bearing spacer.

[0010] Preferably, the bearing spacer is arranged between the main shaft bearings.

[0011] Preferably, the oil circulation system includes a lower oil inlet, a containing cavity, an upper oil outlet, and an oil seal.

[0012] Preferably, the gland system has two connections with the main shaft, and the oil seal is provided at both connections between the gland system and the main shaft.

[0013] Preferably, the lower oil inlet and the upper oil outlet are symmetrically arranged in the gland system.

[0014] Preferably, a receiving cavity is provided in the middle of the main shaft bearing, and the receiving cavity can accommodate lubricating oil and the main shaft bearing.

[0015] The beneficial effects of the utility model are:

[0016] (1) Through the utility model, during the use of the four-roller stone cutting machine, lubricating oil can be used to provide lubrication for the main wheel of the four-roller stone cutting machine, thereby reducing the friction generated by the main wheel during use, reducing the loss of the main wheel, and increasing the service life of the main wheel.

[0017] (2) Through the utility model, during the use of the four-roller stone cutting machine, it is necessary to frequently reciprocate, and the rotation speed of the main wheel is high. At this time, the bearing is easily exposed to high temperature, which affects the function and service life of the bearing. The flowing lubricating oil can provide cooling for the bearing of the main wheel.

[0018] (3) Through the utility model, an oil pump is provided, which can provide power for the lubricating oil, so that the lubricating oil can enter the oil circulation system from the lower oil inlet and leave the oil circulation system from the upper oil outlet. Moreover, when the lubricating oil leaves the oil circulation system, it can be reused through the filtering device, which can purify the oil circulation system, and the filtering device is easy to disassemble and replace. The lubricating oil can be replaced after being used to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 Assembly view of the utility model

[0021] Figure 3 This is the assembly side view of the utility model

[0022] Figure 4 The schematic diagram of the structure of the main shaft of the utility model is

[0023] Figure 5 It is an exploded schematic diagram of the bearing system and the gland system of the utility model.

[0024] In the figure: 1-spindle, 101-fixed key, 102-fixed thread, 2-bearing system, 201-spindle bearing, 202-bearing spacer, 3-pressure cover system, 301-spindle end pressure cover, 302-spindle housing, 303-pressure cover, 304-locking nut, 305-nut spacer, 4-oil circulation system, 401-upper oil outlet, 402-oil channel, 403-accommodating chamber, 404-lower oil inlet, 405-oil seal, 406-long oil seal. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0026] In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "up", "down", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "end", "head" and "tail" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do 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 should not be understood as a limitation to the present invention.

[0027] Embodiment 1, as Figure 1-Figure 5 As shown, a system for improving the bearing life of a four-roller stone cutting machine includes a main shaft 1, a bearing system 2, a gland system 3, and an oil circulation system 4.

[0028] The surface of the main shaft 1 is provided with a bearing system 2 and a gland system 3 ; the oil circulation system is arranged inside the gland system 3 and the bearing system 2 ; and the bearing system 2 is arranged inside the gland system 3 .

[0029] The spindle 1 is an important working part of the main four-roller stone cutting machine and needs to perform a large number of rotation procedures. The bearing system 2 assists the spindle 1 to rotate, and the gland system 3 protects, lubricates and cools the bearing system 2.

[0030] The main shaft 1 is cylindrical in shape, with a shorter diameter at one end. A fixed key 101 is provided on the shorter side of the main shaft. The motor controls the fixed key 1 on the main shaft 1 through a synchronous belt to rotate the main shaft. The diameter of the middle section of the main shaft 1 is larger than the end with the fixed key 101. A fixed thread 102 is provided on the side of the middle section close to the shorter diameter; a fixed platform with a longer diameter is provided on the side of the middle section away from the shorter diameter. A boss 1 is also provided on the fixed platform toward the middle section of the main shaft 1, and a step with the same bottom diameter as the middle section and a gradually shortened top diameter is provided on the other side of the fixed platform. A groove 1 is provided at one end of the gland system 3 to cooperate with the fixed platform; a locking nut 304 is provided at the other end of the gland system 3 to cooperate with the fixed thread 102; the gland system 3 is fixed to the main shaft 1 through the groove 1 and the locking nut 304. The bearing system 2 is arranged in the gland system. The clearance of the internal structure of the bearing system 2 is adjusted by adjusting the position of the locking nut 304 at the fixed thread 102 to prevent the bearing system 2 from having clearance inside during operation, causing abnormal noise or increased wear.

[0031] The gland system 3 is composed of a spindle end gland 301, a spindle housing 302, a pressure cover 303, a locking nut 304, and a nut spacer 305. Screw holes 1 are provided between the spindle end gland 301, the spindle housing 302, and the pressure cover 303. The positions of the screw holes 1 correspond to each other. The spindle end gland 301, the spindle housing 302, and the pressure cover 303 are fixed through the screw holes 1. The spindle end gland 301 has a larger diameter, and screw holes 2 are also provided on the outer ring of the screw holes 1. The gland system is fixed to the four-roller stone cutting machine through the screw holes 2 to ensure that the stone cutting machine does not roll with the stone cutting machine when it is in working state. The spindle housing 302 can accommodate the bearing system 2. The inner diameter of the spindle housing 302 is the same as the maximum diameter of the bearing system 2 to ensure that there is no gap between the bearing system 2 and the spindle housing 302 during operation. The outer diameter of the pressure cover 303 is the same as the outer diameter of the spindle housing 302, and the inner diameter of the pressure cover 303 is slightly larger than the locking nut 304. The locking nut 304 is arranged at the fixed thread 102 of the spindle 1. The locking nut 304 is provided with a nut spacer 305 in the direction of the spindle end pressure cover 301. The nut spacer 305 is connected and fixed to the bearing system 2. The matching of the locking nut 304 and the nut spacer 305 can limit the displacement of the bearing system 2 in the horizontal direction of the spindle 1. The pressure cover 303 is not connected to the spindle 1 and the locking nut 304.

[0032] The interior of the bearing system 2 is composed of at least two spindle bearings 201 and a bearing spacer 202. Six spindle bearings 201 are used in this embodiment. The length of the outer ring of the spindle bearing 201 is the same as the inner diameter length of the spindle housing 302. Four of the spindle bearings 201 fit each other, and one end of the whole after fitting is connected to the spindle end pressure cover 301; the other end of the whole after fitting is provided with a bearing spacer 202. The remaining two spindle bearings 201 are also fitted at the other end of the bearing spacer 202. The spindle bearing 201 is divided into an inner ring and an outer ring, and balls or rollers are provided between the inner ring and the outer ring. The inner diameter of the bearing spacer 202 is the same as the middle section of the spindle 1; the outer diameter is the same as the inner ring of the spindle bearing 202.

[0033] The oil circulation system 4 includes an upper oil outlet 401, an oil channel 402, a receiving chamber 403, a lower oil inlet 404, an oil seal 405, and a long oil seal 406. The oil circulation system 4 is arranged in the bearing system 2 and the gland system 3, wherein in the gland system 3, an upper oil outlet 401 and a lower oil inlet 404 are arranged inside the pressure cover 303. The axis of the upper oil outlet 401 and the lower oil inlet 404 are on the same vertical line, and the upper oil outlet 401 is above the lower oil outlet 404. The lower oil inlet 404 and the opening 3 at one end of the upper oil outlet 401 are both connected to the surface of the pressure cover 303, and the opening 4 at the other end of the lower oil inlet is connected to the inside of the spindle housing 302; the opening 5 of the upper oil outlet 401 is arranged on the pressure cover 303, and the distance between the opening 5 and the spindle 1 is equal to the distance between the midpoints of the inner diameter and the outer diameter of the spindle 1 and the spindle housing 302.

[0034] A single oil passage 402 is provided inside the spindle housing 302, and the openings of the oil passage 402 are provided at both ends of the spindle housing 302, one end of which is connected to the inside of the spindle housing 302, and an opening 1 is provided near the edge of the spindle end pressure cover 301, and the other end opening 2 is provided on the side of the spindle housing 302, and is connected to the upper oil outlet of the pressure cover 303. The oil passage 402 is parallel to the spindle 1. The diameters of the upper oil outlet 401, the lower oil outlet 404 and the oil passage 402 are the same.

[0035] The accommodating cavity 403 is the gap between the inner ring and the outer ring of the main shaft bearing 201 excluding the gap between the balls or rollers.

[0036] The oil seal 405 and the long oil seal 406 are arranged between the main shaft 1 and the gland system 3. A boss 2 is arranged at the inner diameter of the main shaft end gland 301; a boss 3 is arranged at the inner diameter of the pressure cover 303. The inner diameter of the oil seal 405 is the same as that of the nut spacer 305; the outer diameter is the same as the inner diameter of the pressure cover 303. One end of the oil seal 405 is connected to the main shaft bearing 201, and the other end is connected to the boss 3 of the pressure cover 303. The pressure cover 303 is connected and fixed to the main shaft 1 through the oil seal 405. The inner diameter of the long oil seal 406 is the same as the outer diameter of the fixing platform of the main shaft 1; the inner diameter is the same as the inner diameter of the main shaft end gland 301. One end of the long oil seal 406 is connected to the main shaft bearing 201, and the other end is connected to the boss 2 of the main shaft end gland 301. The height of the boss 2 of the main shaft end gland 301 is the same as the thickness of the long oil seal 406. The main shaft end gland 301 is arranged on the main shaft 1 through the boss 2 and the long oil seal 406. The oil seal 405 and the long oil seal 406 can prevent the lubricating oil from leaking from the gap at the connection between the main shaft 1 and the gland system 3, thereby ensuring the airtightness of the oil passage.

[0037] The oil circulation system 4 also needs to be connected to an oil pump, which is connected to the lower oil inlet 404 and the upper oil outlet 401. The oil pump provides lubricating oil to the device, and when the main shaft 1 is working, the inner ring of the main shaft bearing 201 and the outer ring of the main shaft bearing 201 are driven to rotate, and the lubricating oil can reduce the friction between the balls or rollers connected to the inner ring and the outer ring of the main shaft bearing 201.

[0038] The oil pump is also equipped with a filtering structure. During the use of lubricating oil, a certain amount of impurities are often generated. When too many impurities accumulate, it will affect the use of the device and the lubrication effect. By using a filtering device, the impurities generated during the use of lubricating oil can be removed in time. The service life of the equipment is increased. The lubricating oil of the oil pump needs to be replaced after a certain period of use to ensure the lubrication effect.

[0039] The oil pump can also provide cooling for the lubricating oil. When the main shaft 1 runs for a long time, a large amount of heat will be generated, and the heat can be taken out of the device through the lubricating oil and cooled outside the device. The cooled lubricating oil returns to the device and can provide cooling for the bearing.

[0040] The lubricating oil can circulate in the oil circulation system 4. The flow direction is: the oil pump pumps the lubricating oil into the oil circulation system 4 from the lower oil inlet 404, and the lubricating oil enters the oil circulation system from the lower oil inlet 404, and can enter the accommodating cavity 403 on the main shaft bearing 201, providing lubrication for the sliding between the roller or needle roller on the main shaft bearing 201 and the inner ring and outer ring of the bearing. And absorb part of the heat generated by the rolling friction between the main shaft bearings 201. After filling the accommodating cavity 403, the lubricating oil enters the oil channel 402 from the opening 1, and flows back into the oil pump from the upper oil outlet 401 after passing through the opening 2. A cooling system is arranged on the inside of the oil pump, and the lubricating oil can re-enter the oil circulation system 4 for work after being cooled.

[0041] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A system for improving the bearing life of a four-roller stone cutting machine, comprising: The main shaft, bearing system, gland system, and oil circulation system are characterized by: The main shaft surface is provided with the bearing system and the gland system; the bearing system is arranged in the gland system; the gland system and the bearing system are both provided with the oil circulation system; The oil circulation system is capable of lubricating and cooling the bearing system.

2. A system for improving the bearing life of a four-roller stone cutting machine according to claim 1, characterized in that: The bearing system includes at least two spindle bearings and a bearing spacer.

3. A system for improving the bearing life of a four-roller stone cutting machine according to claim 2, characterized in that: The bearing spacer is arranged between the main shaft bearings.

4. A system for improving the bearing life of a four-roller stone cutting machine according to claim 1, characterized in that: The oil circulation system comprises a lower oil inlet, a containing cavity, an upper oil outlet and an oil seal.

5. A system for improving the bearing life of a four-roller stone cutting machine according to claim 4, characterized in that: The gland system has two connections with the main shaft, and the oil seal is provided at each connection between the gland system and the main shaft.

6. A system for improving the bearing life of a four-roller stone cutting machine according to claim 4, characterized in that: The lower oil inlet and the upper oil outlet are symmetrically arranged in the gland system.

7. A system for improving the bearing life of a four-roller stone cutting machine according to claim 4, characterized in that: A receiving cavity is arranged in the middle of the main shaft bearing, and the receiving cavity can receive lubricating oil and the main shaft bearing.

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