CN214603393U

CN214603393U - Add cooling device hot cutting saw headstock

Info

Publication number: CN214603393U
Application number: CN202120406995.7U
Authority: CN
Inventors: 侯兰波; 孙绪才; 侯晓鹏
Original assignee: Shandong De Hua No1 Machine Tool Nc Equipment Co ltd
Current assignee: Shandong Deyi Robot Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-11-05
Anticipated expiration: 2031-02-23

Abstract

The utility model provides a with cooling device earnestly saw headstock, including the main shaft box, the main shaft is installed to the internal cooperation of main shaft box, the main shaft belt pulley is installed in the one end cooperation that the main shaft stretches out the main shaft box, the other end installation saw bit ring flange that the main shaft stretches out the main shaft box, be equipped with the saw bit on the saw bit ring flange, install cylindrical roller bearing between the main shaft that is close to main shaft belt pulley one side and the main shaft box, the cover is equipped with first bearing cooling jacket between cylindrical roller bearing and the main shaft box, install first end cover on the terminal surface of first bearing cooling jacket, be close to and install angular contact ball bearing between the main shaft of saw bit ring flange one side and the main shaft box, the cover is equipped with second bearing cooling jacket between angular contact ball bearing and the main shaft box, install the second end cover on the terminal surface of second bearing cooling jacket.

Description

Add cooling device hot cutting saw headstock

Technical Field

The utility model belongs to the technical field of the hot saw technique of cutting and specifically relates to a saw headstock is cut to heating cooling device heat.

Background

The hot cutting saw is mainly applied to round billet material cutting and sampling processes in the metal smelting and metal rolling industries, the temperature of a cut metal material is about 800 ℃, the ambient temperature is high, the influence on the deformation and the service life of equipment parts is large, especially, the influence on the lubrication of a bearing in a main shaft box is large, lubricating grease in the bearing can lose at high temperature and agglomerate and become dry, the bearing is extremely easy to damage under the conditions of 2000r/min rotating speed and abnormal lubrication, equipment faults are caused, the normal production is influenced, meanwhile, the deviation of a blade can be caused to cause safety accidents, and how to solve the problems is a problem to be solved urgently at present.

Disclosure of Invention

An object of the utility model is to provide an add cooling device hot cutting saw headstock installs cooling jacket additional through the bearing position department at main shaft both ends, plays the effect to the headstock cooling, ensures that bearing temperature control is at reasonable within range, and then guarantees the normal operation of main shaft.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a hot-cutting saw spindle box with a cooling device, which comprises a spindle box body, a spindle is arranged in the spindle box body in a matching way, a spindle belt pulley is arranged at one end of the spindle extending out of the spindle box body in a matching way, a saw blade flange is arranged at the other end of the spindle extending out of the spindle box body, a saw blade is arranged on the saw blade flange, a cylindrical roller bearing is arranged between the spindle close to one side of the spindle belt pulley and the spindle box body, a first bearing cooling jacket is sleeved between the cylindrical roller bearing and the spindle box body, a first end cover is arranged on the end surface of the first bearing cooling jacket, an angular contact ball bearing is arranged between the spindle close to one side of the saw blade flange and the spindle box body, a second bearing cooling jacket is sleeved between the angular contact ball bearing and the spindle box body, a second end cover is arranged on the end surface of the second bearing cooling jacket, spiral water grooves are arranged on the outer peripheral surfaces of the first bearing cooling jacket and the second bearing cooling jacket, the main shaft box body is also provided with a water supply and drainage mechanism communicated with the spiral water tank, the water supply and drainage mechanism comprises a water inlet main pipe and a water return main pipe, the water inlet main pipe comprises a first water inlet three-way valve and a second water inlet three-way valve, the first water inlet three-way valve is communicated with the second water inlet three-way valve through a first connecting pipe, one outlet of the first water inlet three-way valve is communicated with the spiral water tank on the second bearing cooling jacket through a first pipeline, one outlet of the second water inlet three-way valve is communicated with the spiral water tank on the first bearing cooling jacket through a second pipeline, the other outlet of the first water inlet three-way valve is provided with a water inlet pipe, the other outlet of the second water inlet three-way valve is provided with a first plug, the water return main pipe comprises a first water return three-way valve and a second water return three-way valve, and the first water return three-way valve is communicated with the second water return three-way valve through a second connecting pipe, an outlet of the first water return three-way valve is communicated with the spiral water tank on the first bearing cooling sleeve through a third pipeline, an outlet of the second water return three-way valve is communicated with the spiral water tank on the second bearing cooling sleeve through a fourth pipeline, a water return pipe is installed on the other outlet of the first water return three-way valve, and a second plug is installed on the other outlet of the second water return three-way valve. An inner spacer sleeve is sleeved on the periphery of the main shaft between the angular contact ball bearings, and an outer spacer sleeve is mounted on the inner peripheral wall of a cooling sleeve of the second bearing between the angular contact ball bearings. The improved spindle sealing structure is characterized in that a first sealing ring is installed in the first end cover, an upper spacer sleeve is sleeved between the first sealing ring and the spindle, a second sealing ring is installed in the second end cover, and a lower spacer sleeve is sleeved between the second sealing ring and the spindle. The outer peripheral surface of the first bearing cooling sleeve is sleeved with two groups of third sealing rings, the third sealing rings are respectively positioned at two ends of the spiral water channel, the outer peripheral surface of the second bearing cooling sleeve is sleeved with two groups of fourth sealing rings, and the fourth sealing rings are respectively positioned at two ends of the spiral water channel. A back washing device is arranged between the second pipeline and the third pipeline and between the first pipeline and the fourth pipeline, the back washing device comprises a fifth pipeline and a sixth pipeline, wherein the fifth pipeline is communicated with the first pipeline or the second pipeline, the sixth pipeline is communicated with the third pipeline or the fourth pipeline, one end of the fifth pipeline is provided with a back washing three-way valve, one outlet of the back washing three-way valve is provided with a back washing drain pipe, the other outlet of the back washing three-way valve is provided with an electronic flowmeter which is communicated with the spiral water tank, a filter screen is also arranged between the electronic flowmeter and the back washing three-way valve, a seventh pipeline is communicated between the sixth pipeline and the fifth pipeline, the sixth pipeline is communicated with the spiral water tank, the fifth pipeline is provided with a first control valve, the first control valve is positioned between the back washing three-way valve and the seventh pipeline, and the sixth pipeline is provided with a second control valve, the second control valve is positioned between the third pipeline or the fourth pipeline and the seventh pipeline, the seventh pipeline is provided with a third control valve, and the backwashing water discharge pipe is provided with a fourth control valve.

The utility model has the advantages of: a with cooling device earnestly saw headstock, install cooling jacket additional in the bearing position department at main shaft both ends, the cooling jacket is sheathe in and is set up spiral water tank, spiral water tank closely cooperates with the headstock, realize the cooling water circulation in the spiral water tank through the plumbing mechanism that sets up on the headstock, play the effect to the headstock cooling, ensure that bearing temperature control obtains normal lubrication at reasonable within range, and then guarantee the normal operation of main shaft, avoid the emergence of accident, the life of whole device has also been improved to a certain extent simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a spiral water tank on a bearing cooling jacket;

FIG. 3 is a schematic view of the structure of the water supply and drainage mechanism;

FIG. 4 is an enlarged partial view of I of FIG. 1;

FIG. 5 is an enlarged partial view of II of FIG. 1;

fig. 6 is a schematic structural view of the backwashing device.

Detailed Description

A with cooling device hot cutting saw headstock, as shown in fig. 1, including main shaft box 1, main shaft 2 is installed to main shaft box 1 fit in, main shaft 2 stretches out main shaft box 1's one end cooperation and installs main shaft belt pulley 3, main shaft 2 stretches out main shaft box 1's other end installation saw bit ring flange 4, is equipped with saw bit 5 on the saw bit ring flange 4. The power device such as the motor can drive the main shaft belt pulley 3 and the main shaft 2 to rotate through the transmission belt, so as to realize the cutting of the saw blade 5.

A cylindrical roller bearing 6 is arranged between the main shaft 2 close to one side of the main shaft belt pulley 3 and the main shaft box body 1, a first bearing cooling sleeve 7 is sleeved between the cylindrical roller bearing 6 and the main shaft box body 1, and a first end cover 8 is arranged on the end face of the first bearing cooling sleeve 7. An angular contact ball bearing 9 is arranged between the main shaft 2 close to one side of the saw blade flange plate 4 and the main shaft box body 1, a second bearing cooling sleeve 10 is sleeved between the angular contact ball bearing 9 and the main shaft box body 1, and a second end cover 11 is arranged on the end face of the second bearing cooling sleeve 10. As shown in fig. 2, spiral water grooves 12 are provided on the outer peripheral surfaces of the first bearing cooling jacket 7 and the second bearing cooling jacket 10.

Each functional unit in the main shaft box 1 cooperates each other, has guaranteed that the hot saw can be in high-speed operation and normal safe use under the high temperature environment in order, and wherein the steady and life of hot saw under high-speed operation has been guaranteed to the reasonable selection of material and reasonable cooperation precision of cooling jacket, and spiral water tank 12 on the cooling jacket makes the cooling effect of circulating water more effective even. The cylindrical roller bearing 6 and the angular contact ball bearing 9 are used for supporting the high-speed operation of the main shaft 2, the main shaft box body 1 is used for supporting all parts and is matched with the cooling water jacket to form a cooling water cavity, and the main shaft 2 is used for supporting the saw blade 5 and the main shaft belt pulley 3 and transmitting power. The cooling water jacket can be detached from the main spindle box 1, and the spiral water tank 12 on the periphery of the cooling water jacket can be cleaned independently, so that the cooling water jacket is convenient to maintain.

In order to facilitate the circulation of the cooling water in the cooling water jacket so as to cool the spindle box body 1, a water supply and drainage mechanism communicated with the spiral water tank 12 is further installed on the spindle box body 1, as shown in fig. 3, the water supply and drainage mechanism comprises a water inlet main pipe and a water return main pipe, wherein the water inlet main pipe comprises a first water inlet three-way valve 13 and a second water inlet three-way valve 14, the first water inlet three-way valve 13 is communicated with the second water inlet three-way valve 14 through a first connecting pipe 15, an outlet of the first water inlet three-way valve 13 is communicated with the spiral water tank 12 on the second bearing cooling jacket 10 through a first pipeline 29, an outlet of the second water inlet three-way valve 14 is communicated with the spiral water tank 12 on the first bearing cooling jacket 7 through a second pipeline 30, a water inlet pipe 22 is installed at the other outlet of the first water inlet three-way valve 13, and a first plug 16 is installed at the other outlet of the second water inlet three-way valve 14.

The water return main pipe comprises a first water return three-way valve 17 and a second water return three-way valve 18, the first water return three-way valve 17 is communicated with the second water return three-way valve 18 through a second connecting pipe 19, one outlet of the first water return three-way valve 17 is communicated with the spiral water tank 12 on the first bearing cooling jacket 7 through a third pipeline 31, one outlet of the second water return three-way valve 18 is communicated with the spiral water tank 12 on the second bearing cooling jacket 10 through a fourth pipeline 32, a water return pipe 20 is installed on the other outlet of the first water return three-way valve 17, and a second plug 21 is installed on the other outlet of the second water return three-way valve 18.

Before the hot cutting saw works, the main shaft cooling device system is firstly turned on, cooling water is circulated in the cooling water jacket, and the hot cutting saw is turned on to start working under the condition that the cooling system is ensured to normally run. When the water circulation is realized in the spiral water tank 12 by the water supply and drainage mechanism, cooling water enters the first water inlet three-way valve 13 and the second water inlet three-way valve 14 from the water inlet pipe 22, for the first bearing cooling jacket 7, the cooling water enters the spiral water tank 12 from the second water inlet three-way valve 14 and the second pipeline 30, and the water return is completed by the third pipeline 31, the first water return three-way valve 17 and the water return pipe 20 after the circulation absorbs heat. For the second bearing cooling jacket 10, cooling water enters the spiral water tank 12 through the first water inlet three-way valve 13 and the first pipeline 29, and after circulating heat absorption, water return is completed through the fourth pipeline 32, the second water return three-way valve 18, the second connecting pipe 19 and the water return pipe 20. Thereby take out the heat in the main shaft box body 1, reduce inside temperature, guarantee the normal lubrication of lubricating grease, ensure the normal operation of each bearing, prolonged the life of hot saw greatly under the prerequisite of hot saw safe in utilization.

Furthermore, in order to facilitate the positioning and installation of the bearings, an inner spacer 23 is sleeved on the outer periphery of the main shaft 2 between the angular ball bearings 9, and an outer spacer 24 is installed on the inner peripheral wall of the second bearing cooling sleeve 10 between the angular ball bearings 9.

Further, in order to ensure the sealing performance of the rotation of the main shaft 2 and avoid the leakage of the cooling circulating water, as shown in fig. 4 and 5, a first sealing ring 25 is installed in the first end cover 8, an upper spacer 26 is sleeved between the first sealing ring 25 and the main shaft 2, a second sealing ring 27 is installed in the second end cover 11, and a lower spacer 28 is sleeved between the second sealing ring 27 and the main shaft 2. Two groups of third sealing rings 33 are sleeved on the peripheral surface of the first bearing cooling jacket 7, the third sealing rings 33 are respectively positioned at two ends of the spiral water tank 12, two groups of fourth sealing rings 34 are sleeved on the peripheral surface of the second bearing cooling jacket 10, and the fourth sealing rings 34 are respectively positioned at two ends of the spiral water tank 12.

When cooling water enters the spiral water tank 12, the flow rate of the cooling water entering the spiral water tank 12 may be reduced due to accumulation of impurities in the water, so that a normal cooling effect cannot be achieved, and in order to solve the above problem without disassembling the cooling water jacket and ensure the flow rate of the cooling water entering the spiral water tank 12, so as to achieve a normal cooling effect, back washing devices are installed between the second pipeline 30 and the third pipeline 31 and between the first pipeline 29 and the fourth pipeline 32. As shown in fig. 6, the backwashing device includes a fifth pipeline 35 and a sixth pipeline 36, wherein the fifth pipeline 35 is communicated with the first pipeline 29 or the second pipeline 30, and is equivalent to a water inlet pipeline of the backwashing device, and the sixth pipeline 36 is communicated with the third pipeline 31 or the fourth pipeline 32, and is equivalent to a water return pipeline of the backwashing device.

A backflushing three-way valve 37 is installed at one end of the fifth pipeline 35, a backflushing drain pipe 38 is installed at one outlet of the backflushing three-way valve 37, an electronic flowmeter 39 is installed at the other outlet of the backflushing three-way valve 37, the electronic flowmeter 39 is communicated with the spiral water tank 12, and the electronic flowmeter 39 can detect the flow of cooling water entering the spiral water tank 12 in real time. A filter screen 40 is further installed between the electronic flowmeter 39 and the backflushing three-way valve 37, and is used for filtering impurities entering the spiral water tank 12 to cool water. A seventh pipeline 41 is communicated between the sixth pipeline 36 and the fifth pipeline 35, and the sixth pipeline 36 is communicated with the spiral water tank 12. The fifth pipeline 35 is provided with a first control valve 42, the first control valve 42 is positioned between the backflushing three-way valve 37 and the seventh pipeline 41, the sixth pipeline 36 is provided with a second control valve 43, the second control valve 43 is positioned between the third pipeline 31 or the fourth pipeline 32 and the seventh pipeline 41, the seventh pipeline 41 is provided with a third control valve 44, and the backflushing water discharge pipe 38 is provided with a fourth control valve 45.

When the normal cooling water circulation is in and out, namely water is fed into the spiral water tank 12 through the fifth pipeline 35, water is discharged from the sixth pipeline 36, the first control valve 42 and the second control valve 43 are opened, the third control valve 44 and the fourth control valve 45 are closed, the cooling water enters the spiral water tank 12 through the filtration of the filter screen 40, the electronic flow meter 39 monitors the flow entering the spiral water tank 12, when excessive impurities are accumulated in front of the filter screen 40 and the flow of the cooling water entering the spiral water tank 12 is influenced, the back flushing is required to be carried out on the cooling water, at the moment, the first control valve 42 and the second control valve 43 are closed, the third control valve 44 and the fourth control valve 45 are opened, the cooling water enters the spiral water tank 12 through the seventh pipeline 41 and the sixth pipeline 36, then the back flushing is carried out on the filter screen 40 through the discharge of the back flushing water pipe 12, and the impurities on the filter screen are discharged through the back flushing water discharge pipe 38, so as to complete the process, ensuring the flow of cooling water entering the spiral water tank 12. If the flow rate does not reach the standard after backwashing, the cooling water jacket is manually disassembled for maintenance or replacement, so that the flow rate of cooling water entering the spiral water tank 12 is ensured, and the normal temperature reduction of the main spindle box 1 is realized.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides a add cooling device hot cutting saw headstock which characterized in that: the cooling device comprises a main shaft box body (1), a main shaft (2) is installed in the main shaft box body (1) in a matched mode, a main shaft belt pulley (3) is installed at one end, extending out of the main shaft box body (1), of the main shaft (2), a saw blade flange plate (4) is installed at the other end, extending out of the main shaft box body (1), of the main shaft (2), a saw blade (5) is arranged on the saw blade flange plate (4), a cylindrical roller bearing (6) is installed between the main shaft (2) close to one side of the main shaft belt pulley (3) and the main shaft box body (1), a first bearing cooling sleeve (7) is sleeved between the cylindrical roller bearing (6) and the main shaft box body (1), a first end cover (8) is installed on the end face of the first bearing cooling sleeve (7), an angular contact ball bearing (9) is installed between the main shaft (2) close to one side of the saw blade flange plate (4) and the main shaft box body (1), a second bearing cooling sleeve (10) is sleeved between the angular contact ball bearing (9) and the main shaft box body (1), a second end cover (11) is arranged on the end face of the second bearing cooling jacket (10), spiral water grooves (12) are arranged on the peripheral surfaces of the first bearing cooling jacket (7) and the second bearing cooling jacket (10), a water supply and drainage mechanism communicated with the spiral water grooves (12) is further arranged on the spindle box body (1), the water supply and drainage mechanism comprises a water inlet main pipe and a water return main pipe, the water inlet main pipe comprises a first water inlet three-way valve (13) and a second water inlet three-way valve (14), the first water inlet three-way valve (13) is communicated with the second water inlet three-way valve (14) through a first connecting pipe (15), one outlet of the first water inlet three-way valve (13) is communicated with the spiral water grooves (12) on the second bearing cooling jacket (10) through a first pipeline (29), one outlet of the second water inlet three-way valve (14) is communicated with the spiral water grooves (12) on the first bearing cooling jacket (7) through a second pipeline (30), a water inlet pipe (22) is arranged on the other outlet of the first water inlet three-way valve (13), a first plug (16) is arranged on the other outlet of the second water inlet three-way valve (14), the water return main pipe comprises a first water return three-way valve (17) and a second water return three-way valve (18), the first water return three-way valve (17) and the second water return three-way valve (18) are communicated through a second connecting pipe (19), an outlet of the first water return three-way valve (17) is communicated with a spiral water tank (12) on the first bearing cooling jacket (7) through a third pipeline (31), an outlet of the second water return three-way valve (18) is communicated with the spiral water tank (12) on the second bearing cooling jacket (10) through a fourth pipeline (32), a water return pipe (20) is installed on the other outlet of the first water return three-way valve (17), and a second plug (21) is installed on the other outlet of the second water return three-way valve (18).

2. The hot cutting saw spindle box with the cooling device as claimed in claim 1, wherein: an inner spacer (23) is sleeved on the periphery of the main shaft (2) between the angular contact ball bearings (9), and an outer spacer (24) is mounted on the inner peripheral wall of the second bearing cooling sleeve (10) between the angular contact ball bearings (9).

3. The hot cutting saw spindle box with the cooling device as claimed in claim 1, wherein: install first sealing washer (25) in first end cover (8), the cover is equipped with between first sealing washer (25) and main shaft (2) spacer sleeve (26), install second sealing washer (27) in second end cover (11), the cover is equipped with down spacer sleeve (28) between second sealing washer (27) and main shaft (2).

4. The hot cutting saw spindle box with the cooling device as claimed in claim 1, wherein: the outer peripheral surface of the first bearing cooling jacket (7) is sleeved with two groups of third sealing rings (33), the third sealing rings (33) are respectively located at two end positions of the spiral water tank (12), the outer peripheral surface of the second bearing cooling jacket (10) is sleeved with two groups of fourth sealing rings (34), and the fourth sealing rings (34) are respectively located at two end positions of the spiral water tank (12).

5. The hot cutting saw spindle box with the cooling device as claimed in claim 1, wherein: a backwashing device is arranged between the second pipeline (30) and the third pipeline (31) and between the first pipeline (29) and the fourth pipeline (32), the backwashing device comprises a fifth pipeline (35) and a sixth pipeline (36), wherein the fifth pipeline (35) is communicated with the first pipeline (29) or the second pipeline (30), the sixth pipeline (36) is communicated with the third pipeline (31) or the fourth pipeline (32), a backwashing three-way valve (37) is arranged at one end of the fifth pipeline (35), a backwashing drain pipe (38) is arranged at one outlet of the backwashing three-way valve (37), an electronic flowmeter (39) is arranged at the other outlet of the backwashing three-way valve (37), the electronic flowmeter (39) is communicated with the spiral water tank (12), a filter screen (40) is also arranged between the electronic flowmeter (39) and the backwashing three-way valve (37), a seventh pipeline (41) is communicated between the sixth pipeline (36) and the fifth pipeline (35), the sixth pipeline (36) is communicated with the spiral water tank (12), wherein a first control valve (42) is installed on the fifth pipeline (35), the first control valve (42) is located between the backflushing three-way valve (37) and the seventh pipeline (41), a second control valve (43) is installed on the sixth pipeline (36), the second control valve (43) is located between the third pipeline (31) or the fourth pipeline (32) and the seventh pipeline (41), a third control valve (44) is installed on the seventh pipeline (41), and a fourth control valve (45) is installed on the backflushing drain pipe (38).