CN109357093B - Water-cooling rotary joint device for hot straightening machine - Google Patents
Water-cooling rotary joint device for hot straightening machine Download PDFInfo
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- CN109357093B CN109357093B CN201811441020.7A CN201811441020A CN109357093B CN 109357093 B CN109357093 B CN 109357093B CN 201811441020 A CN201811441020 A CN 201811441020A CN 109357093 B CN109357093 B CN 109357093B
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joints Allowing Movement (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a water-cooling rotary joint device for a hot straightener, which comprises: the device comprises a flange (1), a stop (2), a rotary joint component, a cooling water pipe (4), a supporting roller (5), a roller shaft (6) and a rivet (7); the rotary joint member includes: a joint base (40) and a bearing base member (3); joint seat (40) and bearing housing part (3) fixed connection, bearing housing part (3) and flange (1) fixed connection, the downside installation backstop (2) of bearing housing part (3), the one end of cooling water pipe (4) is from right to left and is run through flange (1), bearing housing part (3), joint seat (40) in proper order, and this end tip of cooling water pipe (4) sets up inscribe wire hole (48) at joint seat (40), the other end of cooling water pipe (4) passes through rivet (7) and is connected with roller axle (6), suit supporting roller (5) on roller axle (6).
Description
Technical Field
The invention belongs to the technical field of mechanical cooling of rolling mills, and particularly relates to a water-cooling rotary joint device for a hot straightening machine.
Background
In the production process of the Lai steel wide and thick plate, the hot straightening is an indispensable production process. The thermal straightening is generally carried out at 650-1000 ℃, and is suitable for medium plates. In general, the hot straightening rolls have a relatively high temperature and require water for cooling. The hot straightening roll is characterized in that a long blind hole structure is arranged inside the center of the hot straightening roll, a rotary joint is connected with the blind hole of the hot straightening roll, and water is introduced for cooling. The rotating joint moves forward or backward because the hot straightening roller moves, and cooling water enters and exits through the rotating joint. The existing rotary joint has the defects of poor water tightness, easy water inlet of an internal bearing, aggravated abrasion, short service life and production process. If the rotary joint is damaged, the machine is shut down, the time for replacing the rotary joint is long, and the production efficiency is influenced.
Currently, there are two main types of existing rotary joints: the first, Chinese patent application publication No. CN201010584092.4, water-cooled rotary joint of hot straightening machine, discloses a water-cooled rotary joint of hot straightening machine, relates to the structure of rolling pad straightening machine. The return water body is split type structure, middle part ring disk body and right part siphonozooid are disjunctor dish seat body structure, the sealing washer has been registrated to the right open-ended ring inslot of dish seat body, return water body left part siphonozooid is independent dish cover body, the siphonozooid right side port location registrate of a ring dish of extension at right end portion closes in dish seat body location annular groove, two annular groove of step formula have been seted up to the circle in the dish cover body ring dish, the sealing washer registrates at left end one-level annular groove as the water seal, the circle registrates at the left end step axle excircle of leveling roller in the water seal, four U-shaped breachs have been seted up to the equipartition of dish cover body lower extreme. Has the advantages that: the water return pipe body is arranged in a split mode, so that water seal leakage can flow out of the U-shaped notch of the disc sleeve body, and bearing lubricating oil space cannot be mixed. Second, chinese patent application publication No. cn201720783736.x, entitled "high temperature rotary joint", discloses a high temperature rotary joint, which includes a first joint including a first connection pipe, a first metal bellows fixedly connected to the first connection pipe, and a first sealing ring disposed at an end of the first metal bellows, and a second joint including a second connection pipe, a second metal bellows fixedly connected to the second connection pipe, and a second sealing ring disposed at an end of the second metal bellows. According to the invention, metal corrugated pipes with certain length and rigidity are respectively welded at the butt joint positions of the fixed joint and the rotary joint of the rotary joint, and a wear-resistant material sealing ring is welded at the other end of each metal corrugated pipe, after the rotary joint is assembled, the sealing rings are in butt joint, so that the corrugated pipes have certain compression amount, the expansion amount after thermal expansion is effectively utilized, the axial pre-tightening force required by sealing contact is provided, and meanwhile, working media, bearings and other rotary components are separated from each other.
However, in the first rotary joint, the hot straightening roll has a different appearance structure from the existing hot straightening roll, and has no projected shaft diameter, and water sealing cannot be realized or cannot be connected to the blind hole of the existing hot straightening roll; the second rotary joint only has one water inlet, cannot discharge cooling water again, and is not suitable for cooling the hot straightening roller.
Disclosure of Invention
The invention aims to overcome the defects of the existing selective joint, and provides a water-cooling rotary joint device for a hot straightener, which is convenient to install, suitable for forward transmission or reverse rotation, economical and applicable, stable in rotation, long in service life, simple in structure and convenient to maintain, reduces the replacement frequency, improves the production efficiency, and is convenient to observe the damage degree.
In order to achieve the above object, the present invention provides a water-cooled rotary joint device for a hot straightener, comprising: the device comprises a flange 1, a stop 2, a rotary joint part, a cooling water pipe 4, a supporting roller 5, a roller shaft 6 and a rivet 7; the rotary joint member includes: a joint housing 40 and a bearing housing member 3;
the joint seat 40 is fixedly connected with the bearing seat component 3, the bearing seat component 3 is fixedly connected with the flange 1, the stop 2 is installed on the lower side of the bearing seat component 3, one end of the cooling water pipe 4 sequentially penetrates through the flange 1, the bearing seat component 3 and the joint seat 40 from right to left, the end part of the end of the cooling water pipe 4 is arranged in an inner connecting wire hole 48 of the joint seat 40, the other end of the cooling water pipe 4 is connected with the roller shaft 6 through a rivet 7, and the roller shaft 6 is sleeved with the supporting roller 5.
As an improvement of the above device, the middle part of the flange 1 is provided with an internal connecting screw hole 14, one side end face of the flange 1 is provided with a plurality of counter bores 12 and is fixed by using counter bolts, and the other side end face opposite to the side end face of the flange 1 is correspondingly provided with a first lightening hole 11, so that the weight is conveniently lightened; the shaft shoulder on the other side and the blind hole 17 end of the hot straightening roll are provided with bolts for positioning and installation, and the shaft shoulder on the other side is provided with a sealing groove 13 on which a sealing ring is arranged to prevent water leakage. Wherein the diameter of the first lightening hole 11 is larger than that of the hot straightening roll 16; the internal screw hole 14 is matched with the pipe thread of the shaft screw head 331 of the bearing seat component 3, and the thread is pipe thread, so that water sealing is facilitated.
As a modification of the above device, the joint housing 40 includes: elastic component 42, observation hole 41, water inlet 43 and water outlet 44;
a plurality of annular bosses arranged on one side wall of the joint seat 40 are correspondingly matched and pressed with a plurality of positioning sub-openings 45 arranged on the bearing seat 31 to form fixed connection; the inside of the joint socket 40 is divided into a first inner space 8 and a second inner space 9; the elastic component 42 is arranged in the second inner space 9, and the second inner space 9 is provided with a viewing hole 41; one side of the first inner space 8 is provided with a water inlet hole 43, the water inlet hole 43 extends towards the inside of the first inner space 8, one side adjacent to the side of the water inlet hole 43 is provided with a water outlet 44, the middle part of the joint seat 40 is provided with a first through hole, and the first through hole penetrates through the first inner space 8 and the second inner space 9.
As a modification of the above-described device, the elastic member 42 includes: the device comprises a static ring 421, a corrugated pipe 424, a spring 425, a plane retaining ring 426, a corrugated pipe positioning sleeve 427, a retainer ring 422, a rotation stopping groove 47 and a plurality of rotation stopping steel balls 423;
a bellows retaining sleeve 427 is nested within the bellows 424, and the tube threads 428 of the bellows retaining sleeve 427 are connected to the internal wire holes 48; and through the inner bore of the bellows 424; the spring 425 is sleeved on the corrugated pipe 424 and fixed between the plane retaining ring 426 and the stationary ring 421 in a welding mode, the retaining ring 422 is sleeved on the stationary ring 421, a plurality of rotation stopping steel balls 423 are symmetrically arranged on two sides of the outer circle of the retaining ring 422, a rotation stopping groove 47 is formed in the inner wall of the second inner space 9, the rotation stopping steel balls 423 are correspondingly arranged in the rotation stopping groove 47 respectively, and the rotation stopping steel balls 423 are steel balls with elasticity and have the function of preventing the stationary ring 421 from rotating.
As a modification of the above apparatus, the bearing housing member 3 includes: the bearing seat 31, the baffle cover 32, the shaft 33, the bolt 34, the bearing 35, the hoisting hole 36, the oil filling hole 37, the movable ring positioning sleeve 38, the movable ring 39, the spacer ring 46 and the positioning sub-opening 45;
a third inner space 10 is arranged in the bearing seat 31, a second through hole is formed in the middle of the bearing seat 31, the shaft 33 is arranged in the second through hole, a plurality of rolling bearings 35 are sleeved on the shaft 33, the rolling bearings 35 are separated by a spacer ring 46, the shaft 33 and the rolling bearings 35 are combined and sleeved in the third inner space 10 in the bearing seat 31, the baffle cover 32 is sleeved on the shaft 33 and fixed on one side of the bearing seat 31 by bolts 35, and the rolling bearings 35 are sealed in the bearing seat 31; the upper side and the lower side of the outer part of the bearing seat 31 are respectively and correspondingly provided with a hoisting hole 36 and an oil filling hole 37, a movable ring positioning sleeve 38 is nested in a short hole 335 at one end of the shaft 33, and a movable ring 39 is nested on the movable ring positioning sleeve 38; wherein, the diameter of the first through hole is equal to and communicated with the diameter of the second through hole.
As a modification of the above device, the shaft 33 is a hollow shaft, which includes: a stage of a table, a hollow shaft 333, a chamfered plane 332, a cylindrical inner hole 336;
one end of the shaft 33 is provided with a cylindrical inner bore 336, and the exterior thereof is provided with a pipe thread 331; a chamfered plane 332 is formed at one end close to the pipe thread 331, the chamfered plane 332 is connected with one end of a hollow shaft 333, the other end of the hollow shaft 333 is fixedly connected with a table, and a short hole 335 is formed at the end part of the table; rotating by clamping the chamfered plane 332, screwing one end of the shaft 33 with the pipe thread 331 into the internal thread hole 14 of the flange 1;
the chamfered plane 332 and the cylindrical inner hole 336 are on the same horizontal line, and the diameter of the hollow shaft 333 is larger than the diameter of the chamfered plane 332 and the cylindrical inner hole 336 in the diameter direction, so that the bearing 35 can be mounted conveniently.
As an improvement of the above apparatus, the step section comprises: first step 334, second step 338, third step 339, fourth step 340.
Diametrically, the second step 338 is the same length as the third step 339, and both are smaller than the fourth step 340; the length of the second step 388 and the length of the third step 339 are both greater than the length of the first step 334 in the diameter direction; the lengths of the second step 338 and the third step 339 are smaller than that of the hollow shaft 333, and the hollow shaft 333 is used for mounting a bearing; in the diameter direction, the diameter of the chamfered edge plane 332 is smaller than that of the hollow shaft 333, wherein the first step 334 is provided with a short hole 335, the length of the short hole is smaller than that of the first step 334 and serves as a mounting hole of the movable ring positioning sleeve 38, the second step 338 and the third step 339 are mounted in a middle hole at the left end of the bearing seat 31 and are in clearance fit with each other to prevent abrasion, a sealing groove 337 is formed between the first step 334 and the third step, a sealing ring is mounted on the sealing groove 337 to prevent water from leaking into the rolling bearing 35, so that the abrasion of the rolling bearing 35 is aggravated, and the service life is short. The diameter of the fourth step 340 is larger than the middle hole at the left end of the bearing seat, so that the bearing installation position is convenient to locate.
As an improvement of the above device, in the blocking cover 32, a plurality of mounting holes 321 are uniformly distributed on an end surface thereof, a sub-opening 322 is arranged on one end surface, an inner hole 323 is arranged in the middle part, and a square hole groove 324 is arranged on an extension line of a radial direction of one side of an outer circle, for mounting the stopper 2, and the blocking cover 32 is used in cooperation with the stopper 2. Wherein, the stop 2 is matched with the square hole groove 324 of the stop cover 32 of the rotary joint component 3 to prevent rotation; an end face bead 322 is fitted to the outer ring of the rolling bearing 35.
As a modification of the above device, the movable ring 39 is a cylindrical ring; the movable ring 39 is made of tungsten carbide.
As a modification of the above device, the movable ring positioning sleeve 38 has a stepped cylindrical shape.
As a modification of the above device, the stopper 2 includes: a fixed plate 21 and a right-angle plate 22; the hot straightening roll bearing seat and the hot straightening roll bearing seat are fixedly connected into a whole in a welding mode, wherein a first mounting hole 23 is formed in the fixing plate 21, the hot straightening roll bearing seat 15 is fixed through a bolt, the hot straightening roll bearing seat 15 is fixedly connected with a fixing base of a hot straightening machine through a bolt, the rotating joint part can be effectively prevented from rotating, and the rigidity and the strength are good.
As a modification of the above device, one end of the cooling water pipe 4 is a pipe thread and is installed in the water inlet 43 in the joint base 40; a plurality of small water outlet holes 18 are drilled on the pipe wall at the other end of the pipe, and a roller shaft 6 is arranged on the pipe wall at the other end and is connected with the roller shaft 6 through a rivet 7; the roller shaft 6 is sleeved with a supporting roller 5. Wherein, the cooling water pipe 4 is longer and has the same length with the hot straightening roller 16; the pipe wall at the other end is drilled with a plurality of small water outlet holes 18, and the pipe holes at the other end are provided with supporting rollers for ensuring the positioning of the cooling water pipe when the supporting rollers rotate.
As a modification of the device, the supporting roller 5 is provided with an inner hole 51 in the middle, the outline of the outer circle is a flat-top sharp-pointed shape 52, the friction area between the supporting roller and the inner wall of the blind hole 17 of the hot straightening roller is reduced, and the outer end surface of the supporting roller is provided with 3 lightening holes 53.
As a modification of the above-mentioned device, the roller shaft 6 is stepped and comprises: a second stage 63, a third stage 64, a first rivet hole 62, a second rivet hole 61 and a water through hole 65, specifically, the supporting roller 5 is sleeved on the second stage 63, that is, the second stage 63 is installed and matched with the supporting roller 5; the first rivet hole 62 and the second rivet hole 61 are not on the same side, are respectively on two opposite sides, and are perpendicular to each other; the third stage 64 is fitted to the right end pipe hole of the cooling water pipe 4, and then, a rivet 7 is inserted through the first rivet hole 62 and fixed to the first rivet hole 62 by riveting, and a water passage hole 65 is provided in the center.
The invention has the advantages that:
1. the invention has simple structure and convenient use.
2. The invention can be used by rotating forward and backward and rotating at an indefinite speed, has good water sealing effect, and is not easy to damage by water inflow.
3. The invention has convenient disassembly and assembly, convenient maintenance, convenient replacement of vulnerable parts such as the movable ring, the bearing and the like and high repair value.
4. The invention has stable movement, no noise and good cooling effect.
Drawings
FIG. 1 is a schematic structural view of a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 2 is a schematic structural view of a joint block fixedly connected with a rotary joint bearing block component in a water-cooled rotary joint device for a hot straightening machine according to the present invention;
FIG. 3 is a schematic structural view of an elastic component of a joint block in a water-cooled rotary joint device for a hot straightening machine according to the present invention;
FIG. 4 is a schematic view of the construction of the shaft in the swivel bearing housing part in a water-cooled swivel device for a hot straightener of the present invention;
FIG. 5 is a cross-sectional view of a flange in a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 6 is a schematic structural view of a flange in a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 7 is a front view of a stop in a water cooled swivel arrangement for a hot straightener of the present invention;
FIG. 8 is a top view of a stop in a water cooled swivel arrangement for a hot straightener of the present invention;
FIG. 9 is a right side view of a stop in a water cooled swivel arrangement for a hot straightener of the present invention;
FIG. 10 is a front view of a backup roller in a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 11 is a side view of a backup roller in a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 12 is a schematic view of the construction of one side of a roller shaft in a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 13 is a schematic view of the opposite side of the roll shaft in a water-cooled rotary joint apparatus for a hot straightener of the present invention;
FIG. 14 is a schematic structural view of a swivel part rotating ring used in a water-cooled swivel device of a hot straightener of the present invention;
FIG. 15 is a schematic view of a rotating ring positioning sleeve of a rotary joint component in a water-cooled rotary joint device for a hot straightener of the present invention;
FIG. 16 is a front view of a shield cover of a swivel bearing block member in a water-cooled swivel assembly for a hot straightener of the present invention;
FIG. 17 is a side view of a shield cap for a swivel bearing block component in a water-cooled swivel assembly for a hot straightener of the present invention;
FIG. 18 is a schematic structural diagram of the stop of the water-cooled rotary joint device for a hot straightening machine of the present invention installed in cooperation with a hot straightening roll bearing seat.
Reference numerals:
1. flange 2, backstop 3, bearing frame part
4. Cooling water pipe 5, supporting roller 6 and roller shaft
7. Rivet 8, first inner space 9, second inner space
10. A third inner space 11, a first lightening hole 12 and a counter bore
13. Sealing groove 14, internal connecting wire hole 15 and hot straightening roll bearing seat
16. Hot straightening roll 17 and blind hole of hot straightening roll
21. Fixed plate 22, right-angle plate 23 and mounting hole
31. Bearing seat 32, shield cover 33 and shaft
34. Bolt 35, bearing 36, lifting hole
37. Oil filling hole 38, movable ring positioning sleeve 39 and movable ring
40. Adapter 41, observation hole 42, elastic component
43. Water inlet 44, water outlet 45 and positioning sub-port
46. Spacer ring 47, rotation stopping groove 48 and internal thread connecting hole
421. Static ring 422, retaining ring 423 and rotation stopping steel ball
424. Bellows 425, spring 426, and flat stop ring
427. Bellows retaining sleeve 428, pipe threads
321. Mounting hole 322, sub-opening 323 and inner hole
324. Square hole 331, pipe thread 332, chamfered plane
333. Hollow shaft 334, first step 335, short hole
336. Cylindrical inner hole 337, seal groove 338, second step
339. Third step 340, fourth step
51. Inner hole 52, flat top tip 53, lightening hole
61. Rivet hole 62, rivet hole 63, step section
64. Water through hole
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a water-cooled rotary joint apparatus for a hot straightener, comprising: the device comprises a flange 1, a stop 2, a rotary joint part, a cooling water pipe 4, a supporting roller 5, a roller shaft 6 and a rivet 7; the rotary joint member includes: a joint housing 40 and a bearing housing member 3;
the joint seat 40 is fixedly connected with the bearing seat component 3, the bearing seat component 3 is fixedly connected with the flange 1, the stop 2 is installed on the lower side of the bearing seat component 3, the left end of the cooling water pipe 4 sequentially penetrates through the flange 1, the bearing seat component 3 and the joint seat 40 from right to left, the end part of the left end of the cooling water pipe 4 is arranged in an internal connecting wire hole 48 of the joint seat 40, the right end of the cooling water pipe is connected with the roller shaft 6 through a rivet 7, and the roller shaft 6 is sleeved with the supporting roller 5.
As an improvement of the above device, as shown in fig. 5 and 6, the middle of the flange 1 is provided with an internal screw hole 14, the left end face of the flange 1 is provided with a plurality of counter bores 12 and is mounted and fixed by using counter bolts, and the right end face opposite to the left end face of the flange 1 is correspondingly provided with a first lightening hole 11 for lightening the weight; the right shaft shoulder and the blind hole 17 end of the hot straightening roll are provided with bolts for positioning and installation, and the shaft shoulder on the right side is provided with a sealing groove 13 on which a sealing ring is arranged to prevent water leakage. Wherein the diameter of the first lightening hole 11 is larger than that of the hot straightening roll 16; the internal screw hole 14 is matched with the pipe thread of the shaft screw head 331 of the bearing seat component 3, and the thread is pipe thread, so that water sealing is facilitated.
As a modification of the above-described device, as shown in fig. 1, 2 and 3, the joint housing 40 includes: elastic component 42, observation hole 41, water inlet 43 and water outlet 44;
two annular bosses arranged on the right side wall of the joint seat 40 are correspondingly matched and pressed with the positioning sub-openings 45 arranged on the bearing seat 31 to form fixed connection; the inside of the joint socket 40 is divided into a first inner space 8 and a second inner space 9; the elastic component 42 is arranged in the second inner space, and the second inner space is provided with a viewing hole 41; the left side of first inner space 8 is equipped with inlet opening 43, and inlet opening 43 extends a distance to first inner space 8's inside to be equipped with delivery port 44 at the downside that is adjacent with the left side of inlet opening 43, first through-hole is seted up at the middle part of adapter 40, and first through-hole runs through first inner space 8 and second inner space 9.
As a modification of the above apparatus, as shown in fig. 3, the elastic member 42 includes: the static ring 421, the bellows 424, the spring 425, the plane retainer 426, the bellows positioning sleeve 427, the retainer ring 422, the rotation stopping groove 47, and 2 rotation stopping steel balls 423;
a bellows retaining sleeve 427 is nested within the bellows 424, and the tube threads 428 of the bellows retaining sleeve 427 are connected to the internal wire holes 48; and through the inner bore of the bellows 424; the spring 425 is sleeved on the corrugated pipe 424 and fixed between the plane retaining ring 426 and the stationary ring 421 in a welding manner, the retaining ring 422 is sleeved on the stationary ring 421, two rotation stopping steel balls 423 are symmetrically arranged on two sides of the outer circle of the retaining ring 422, a rotation stopping groove 47 is arranged on the inner wall of the second inner space 9, the two rotation stopping steel balls 423 are respectively and correspondingly arranged in the rotation stopping groove 47, and the rotation stopping steel balls 423 are steel balls with elasticity and have the function of preventing the stationary ring 421 from rotating.
Wherein, the spring 425 in the elastic component 42 is used for keeping the positive pressure of the static ring 421 when the hot straightening roller 16 rotates; the bellows 424 is welded between the stationary ring 421 and the plane baffle ring 426, and has the function of telescopic pipeline during installation, so that normal transmission of return water is ensured. The static ring 421 is a static seal, the dynamic ring 39 is a dynamic seal, and the key of the end face seal is between the static ring 421 and the dynamic ring 39. In order to make the two end surfaces of the moving ring 39 and the static ring 421 tightly contact, the relative contact and rotation sealing between the moving ring 39 and the static ring 421 is a moving sealing, which relies on the pressure of the elastic component 42 and the medium water to generate a proper pressing force on the contact surface of the moving ring and the static ring, so that the two smooth and straight end surfaces are tightly contacted, and a very thin fluid film is maintained between the end surfaces to achieve the sealing purpose. Sealing is effected by virtue of the close fit of the moving ring 39 and the stationary ring 421, the stationary ring 421 being axially movable as a stationary seal. When the device works, the static ring 421 is pressed on the dynamic ring 39 to move relatively under the action of liquid pressure and spring pressure; wherein, the spring 425 presses the stationary ring 421.
As a modification of the above apparatus, as shown in fig. 2 and 4, the bearing housing member 3 includes: the bearing seat 31, the baffle cover 32, the shaft 33, the bolt 34, the bearing 35, the hoisting hole 36, the oil filling hole 37, the movable ring positioning sleeve 38, the movable ring 39, the spacer ring 46 and the positioning sub-opening 45;
a third inner space 10 is arranged in the bearing seat 31, a second through hole is formed in the middle of the bearing seat 31, the shaft 33 is arranged in the second through hole, two rolling bearings 35 are sleeved on the shaft 33, the rolling bearings 35 are separated by a spacer ring 46, the shaft 33 and the rolling bearings 35 are combined and sleeved in the third inner space 10 in the bearing seat 31, the baffle cover 32 is sleeved on the shaft 33 and fixed on the right side of the bearing seat 31 by bolts 35, and the rolling bearings 35 are sealed in the bearing seat 31; the upper side and the lower side of the outer part of the bearing seat 31 are respectively and correspondingly provided with a hoisting hole 36 and an oil filling hole 37, a movable ring positioning sleeve 38 is nested in a short hole 335 at the left end of the shaft 33, and a movable ring 39 is sheathed on the movable ring positioning sleeve 38; wherein, the diameter of the first through hole is equal to and communicated with the diameter of the second through hole.
As shown in fig. 18, the shaft 33, the inner ring of the rolling bearing 35, the moving ring positioning sleeve 38, and the moving ring 39 in the bearing seat member 3 rotate with the rotation of the hot straightening roller 16, and the bearing seat 31, the joint seat 40, the elastic component 42, the stationary ring 421, the retainer ring 422, the rotation stopping steel ball 423, the bellows 424, the spring 425, the plane retainer ring 426, and the bellows positioning sleeve 427 are relatively stationary and do not rotate with the rotation of the hot straightening roller 16; the water inlet hole 43 and the water outlet 44 do not communicate with each other, otherwise, the cooling effect is not realized; the inlet water enters the blind hole 17 of the hot straightening roller from the inner hole of the cooling water pipe 4 for cooling, and the outlet water flows out along the outer wall of the cooling water pipe 4. The positioning sub-opening 45 plays a role in installation and positioning, and ensures a correct installation position between the movable ring 39 and the fixed ring 421 after installation.
As a modification of the above device, as shown in fig. 4, the shaft 33 is a hollow shaft, and includes: a stage of a table, a hollow shaft 333, a chamfered plane 332, a cylindrical inner hole 336;
the right end of the shaft 33 is provided with a cylindrical inner bore 336, and the exterior thereof is provided with a pipe thread 331; a chamfered plane 332 is formed at one end close to the pipe thread 331, the chamfered plane 332 is connected with the right end of the hollow shaft 333, the left end of the hollow shaft 333 is fixedly connected with a table stage, and the end part of the table stage is provided with a short hole 335; clamping the chamfered plane 332 by a wrench and rotating, so that one end of the shaft 33 with the pipe thread 331 can be screwed into the internal thread hole 14 of the flange 1;
the chamfered plane 332 and the cylindrical inner hole 336 are on the same horizontal line, and the diameter of the hollow shaft 333 is larger than the diameter of the chamfered plane 332 and the cylindrical inner hole 336 in the diameter direction, so that the bearing 35 can be mounted conveniently.
As an improvement of the above device, as shown in fig. 4, the stage is an inner ring limit step of the rolling bearing 35, and includes: first step 334, second step 338, third step 339, fourth step 340;
diametrically, the second step 338 is the same length as the third step 339, and both are smaller than the fourth step 340; the length of the second step 388 and the length of the third step 339 are both greater than the length of the first step 334 in the diameter direction; the lengths of the second step 338 and the third step 339 are smaller than that of the hollow shaft 333, and the hollow shaft 333 is used for mounting a bearing; in the diameter direction, the diameter of the chamfered edge plane 332 is smaller than that of the hollow shaft 333, wherein the first step 334 is provided with a short hole 335, the length of the short hole is smaller than that of the first step 334 and serves as a mounting hole of the movable ring positioning sleeve 38, the second step 338 and the third step 339 are mounted in a middle hole at the left end of the bearing seat 31 and are in clearance fit with each other to prevent abrasion, a sealing groove 337 is formed between the first step 334 and the third step, a sealing ring is mounted on the sealing groove 337 to prevent water from leaking into the rolling bearing 35, so that the abrasion of the rolling bearing 35 is aggravated, and the service life is short. The diameter of the fourth step 340 is larger than the middle hole at the left end of the bearing seat, so that the bearing installation position is convenient to locate.
The right end of the shaft 33 is provided with pipe threads, and after the shaft is screwed into the internal thread hole 14 of the flange 1, water leakage is prevented; the surface of the chamfered edge plane 332 is a plane, so that the clamping of a wrench is facilitated; the rolling bearings 35 are separated by the spacer rings, so that mutual friction between the two bearings can be effectively prevented, and the aggravation of abrasion is avoided.
As a modification of the above device, as shown in fig. 16 and 17, in the blocking cover 32, a plurality of mounting holes 321 are uniformly distributed on the end surface, a sub-opening 322 is arranged on the left end surface, an inner hole 323 is arranged in the middle part, and a square hole groove 324 is arranged on the extension line of the radial direction of one side of the outer circle for mounting the stopper 2, so that the blocking cover 32 is used in cooperation with the stopper 2. Wherein, the stop 2 is matched with the square hole groove 324 of the stop cover 32 of the rotary joint bearing seat component 3 to prevent rotation; the left end surface bead 322 is fitted to the outer ring of the rolling bearing 35.
As a modification of the above device, as shown in fig. 14, the movable ring 39 is a cylindrical ring; the movable ring 39 is made of tungsten carbide.
As a modification of the above device, as shown in fig. 15, the movable ring positioning sleeve 38 has a stepped cylindrical shape.
As a modification of the above device, as shown in fig. 7, 8 and 9, the stopper 2 includes: a fixed plate 21 and a right-angle plate 22; the hot straightening roll bearing seat and the hot straightening roll bearing seat are fixedly connected into a whole in a welding mode, wherein a first mounting hole 23 is formed in the fixing plate 21, the hot straightening roll bearing seat 15 is fixed through a bolt, the hot straightening roll bearing seat 15 is fixedly connected with a fixing base of a hot straightening machine through a bolt, the rotating joint part can be effectively prevented from rotating, and the rigidity and the strength are good.
As a modification of the above device, as shown in fig. 1, 10-13 and 18, the left end of the cooling water pipe 4 is a pipe thread and is installed in a water inlet 43 in the joint base 40; a plurality of small water outlet holes 48 are drilled on the pipe wall at the right end of the pipe, and a roller shaft 6 is arranged on the pipe wall at the right end of the pipe and is connected with the roller shaft 6 through rivets 7; the roller shaft 6 is sleeved with a supporting roller 5. Wherein, the cooling water pipe 4 is longer and has the same length with the hot straightening roller 16; the right pipe wall is drilled with a plurality of small water outlet holes 48, and the right pipe hole is provided with a supporting roller wheel which can ensure the positioning of the cooling water pipe when rotating.
As a modification of the above-mentioned device, as shown in FIGS. 10 and 11, the supporting roller 5 has an inner hole 51 in the middle, a flat-top sharp-pointed outer contour 52 to reduce the friction area with the inner wall of the blind hole 17 of the hot straightening roller, and 3 lightening holes 53 on the outer end surface.
As a modification of the above-described device, as shown in fig. 12 and 13, the roller shaft 6 is stepped and includes: a second stage 63, a third stage 64, a first rivet hole 62, a second rivet hole 61 and a water through hole 65, specifically, the supporting roller 5 is sleeved on the second stage 63, that is, the second stage 63 is installed and matched with the supporting roller 5; the first rivet hole 62 and the second rivet hole 61 are not on the same side, are respectively on two opposite sides, and are perpendicular to each other; as shown in fig. 1, the third stage 64 is fitted to the right end pipe hole of the cooling water pipe 4, and then, the rivet 7 is inserted through the first rivet hole 62 and fixed to the first rivet hole 62 by caulking, and a water passage hole 65 is provided in the center.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A water-cooling rotary joint device for a hot straightener, characterized in that it comprises: the device comprises a flange (1), a stop (2), a rotary joint component, a cooling water pipe (4), a supporting roller (5), a roller shaft (6) and a rivet (7); the rotary joint member includes: a joint base (40) and a bearing base member (3);
the joint seat (40) is fixedly connected with the bearing seat part (3),
the joint base (40) includes: the device comprises an elastic component (42), an observation hole (41), a water inlet hole (43) and a water outlet (44);
a plurality of annular bosses arranged on one side wall of the joint seat (40) are correspondingly matched and pressed with a plurality of positioning sub-openings (45) arranged on the bearing seat (31) to form fixed connection; the interior of the joint seat (40) is divided into a first inner space (8) and a second inner space (9); the elastic component (42) is arranged in the second inner space (9), and the second inner space (9) is provided with an observation hole (41); a water inlet hole (43) is formed in one side of the first inner space (8), the water inlet hole (43) extends towards the inside of the first inner space (8), a water outlet (44) is formed in one side, adjacent to the side of the water inlet hole (43), of the connector base (40), a first through hole is formed in the middle of the connector base, and the first through hole penetrates through the first inner space (8) and the second inner space (9);
the bearing block member (3) includes: the device comprises a bearing seat (31), a blocking cover (32), a shaft (33), a bolt (34), a bearing (35), a hoisting hole (36), an oil filling hole (37), a movable ring positioning sleeve (38), a movable ring (39), a spacer ring (46) and a positioning sub-opening (45);
a third inner space (10) is arranged in the bearing seat (31), a second through hole is formed in the middle of the bearing seat (31), the shaft (33) is installed in the second through hole, a plurality of bearings (35) are sleeved on the shaft (33), the bearings (35) are separated by a spacer ring (46), the shaft (33) and the bearings (35) are combined and sleeved in the third inner space (10) in the bearing seat (31), the blocking cover (32) is sleeved on the shaft (33) and fixed on one side of the bearing seat (31) by bolts (34), and the bearings (35) are sealed in the bearing seat (31); the upper side and the lower side of the outer part of the bearing seat (31) are respectively and correspondingly provided with a hoisting hole (36) and an oil filling hole (37), a movable ring positioning sleeve (38) is nested in a short hole (335) at one end of the shaft (33), and a movable ring (39) is sleeved on the movable ring positioning sleeve (38);
bearing block part (3) and flange (1) fixed connection, backstop (2) are installed to the downside of bearing block part (3), the one end of condenser tube (4) from right to left runs through flange (1), bearing block part (3), adapter (40) in proper order, and this end tip of condenser tube (4) sets up inscribe wire hole (48) in adapter (40), the other end of condenser tube (4) passes through rivet (7) and is connected with roller axle (6), suit bearing roller (5) on roller axle (6).
2. The device according to claim 1, characterized in that the middle of the flange (1) is provided with an internal thread connecting hole (14), one side end face of the flange (1) is provided with a plurality of counter bores (12) and is fixedly installed by using counter bolts, and the other side end face opposite to the side end face of the flange (1) is correspondingly provided with a first lightening hole (11); the shaft shoulder on the other side and the blind hole end of the hot straightening roll are provided with bolts for positioning and installation, a sealing groove (13) is arranged on the shaft shoulder on the other side, and a sealing ring is arranged on the sealing groove.
3. The device according to claim 1, characterized in that said elastic assembly (42) comprises: the device comprises a static ring (421), a corrugated pipe (424), a spring (425), a plane retainer ring (426), a corrugated pipe positioning sleeve (427), a retainer ring (422), a rotation stopping groove (47) and a plurality of rotation stopping steel balls (423);
the bellows positioning sleeve (427) is nested in the bellows (424), and the pipe thread (428) of the bellows positioning sleeve (427) is connected with the internal screw thread hole (48); and penetrates through the inner hole of the corrugated pipe (424); the bellows (424) is established to spring (425) cover, and is fixed in between plane retaining ring (426) and quiet ring (421) through welded mode with it, and retaining ring (422) suit is on quiet ring (421), and is equipped with a plurality of only commentaries on classics steel ball (423) on the both sides of the excircle of retaining ring (422) symmetrically, is equipped with only commentaries on classics groove (47) on the inner wall of second inner space (9), installs a plurality of only commentaries on classics steel ball (423) respectively correspondingly in only commentaries on classics groove (47).
4. The device according to claim 1, characterized in that said shaft (33) is a hollow shaft comprising: a stage, a hollow shaft (333), a chamfered plane (332) and a cylindrical inner hole (336);
one end of the shaft (33) is provided with a cylindrical inner hole (336), and the outer part of the shaft is provided with a pipe thread (331); a chamfered plane (332) is formed at one end close to the pipe thread (331), the chamfered plane (332) is connected with one end of a hollow shaft (333), the other end of the hollow shaft (333) is fixedly connected with a table stage, and a short hole (335) is formed at the end part of the table stage; one end of a shaft (33) with a pipe thread (331) is screwed into an internal thread hole (14) of the flange (1) by rotating while holding the chamfered surface (332).
5. The apparatus of claim 4, wherein the stage comprises: a first step (334), a second step (338), a third step (339);
the first step (334) is as wide as the second step (338), and both are smaller than the third step (339); the width of the third step (339) is larger than that of the hollow shaft (333); in the diameter direction, the diameter of the chamfered plane (332) is smaller than that of the hollow shaft (333), wherein the short hole (335) is a mounting hole of the movable ring positioning sleeve (38), a sealing groove (337) is arranged between the short hole (335) and one end of the table stage, and a sealing ring is mounted on the sealing groove (337).
6. The device according to claim 1, characterized in that, in the baffle cover (32), a plurality of mounting holes (321) are evenly distributed on the end surface, a sub-opening (322) is arranged on one end surface, an inner hole (323) is arranged in the middle, a square hole groove (324) is arranged on the extension line of the radial direction of one side of the excircle and is used for mounting the backstop (2), and the baffle cover (32) is matched with the backstop (2) for use; wherein the stop (2) is matched with a square hole groove (324) of a stop cover (32) of the rotary joint component (3).
7. The device according to claim 1, characterized in that the cooling water pipe (4), one end of which is a pipe thread, is installed in a water inlet hole (43) in the joint base (40); a plurality of small water outlet holes (48) are drilled on the pipe wall at the other end of the pipe, a roller shaft (6) is arranged on the pipe wall at the other end of the pipe, and the pipe wall is connected with the roller shaft (6) through a rivet (7); the roller shaft (6) is sleeved with a supporting roller (5).
8. Device according to claim 1, characterized in that the roller axle (6) is stepped and comprises: a second stage (63), a third stage (64), a first rivet hole (62), a second rivet hole (61) and a water through hole (65); specifically, a bearing roller (5) is sleeved on the second stage (63); the first rivet hole (62) and the second rivet hole (61) are not on the same side, are respectively arranged on two opposite sides and are perpendicular to each other; and a third stage (64) is matched with the right pipe hole of the cooling water pipe (4) and then passes through the first rivet hole (62) by a rivet (7) and is riveted and fixed with the first rivet hole (62), and a water through hole (65) is arranged at the center part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441020.7A CN109357093B (en) | 2018-11-29 | 2018-11-29 | Water-cooling rotary joint device for hot straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441020.7A CN109357093B (en) | 2018-11-29 | 2018-11-29 | Water-cooling rotary joint device for hot straightening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109357093A CN109357093A (en) | 2019-02-19 |
| CN109357093B true CN109357093B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811441020.7A Active CN109357093B (en) | 2018-11-29 | 2018-11-29 | Water-cooling rotary joint device for hot straightening machine |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10135533B4 (en) * | 2001-07-20 | 2007-04-12 | Mosmatic Ag | Hinge for high-pressure devices for connecting a non-rotating part to a rotating part |
| CN2675297Y (en) * | 2004-01-08 | 2005-02-02 | 沈阳人和机械制造有限公司 | embedded rotary joint |
| CN102032405B (en) * | 2010-12-10 | 2012-01-11 | 福建三钢闽光股份有限公司 | Water-cooling rotating joint of hot straightener |
| CN102310491B (en) * | 2011-08-30 | 2014-05-14 | 奉化市釜用密封件有限公司 | Rotary joint of solar monocrystalline silicon cutting machine and using method thereof |
| CN107701836A (en) * | 2016-08-08 | 2018-02-16 | 常州市常通塑管有限公司 | A kind of chicksan |
| CN206810999U (en) * | 2017-05-31 | 2017-12-29 | 舞阳钢铁有限责任公司 | A kind of roller system of straightening machine swivel joint attachment structure |
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2018
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