CN113649418B - Gear coupling and hot rolling finishing mill group - Google Patents
Gear coupling and hot rolling finishing mill group Download PDFInfo
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- CN113649418B CN113649418B CN202110794200.9A CN202110794200A CN113649418B CN 113649418 B CN113649418 B CN 113649418B CN 202110794200 A CN202110794200 A CN 202110794200A CN 113649418 B CN113649418 B CN 113649418B
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- 230000008878 coupling Effects 0.000 title claims abstract description 53
- 238000010168 coupling process Methods 0.000 title claims abstract description 53
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 53
- 238000005098 hot rolling Methods 0.000 title abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000007142 ring opening reaction Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000004519 grease Substances 0.000 abstract description 22
- 230000001050 lubricating effect Effects 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/142—Yielding spindle couplings; Universal joints for spindles
- B21B35/143—Yielding spindle couplings; Universal joints for spindles having slidably-interengaging teeth, e.g. gear-type couplings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The application belongs to the technical field of mechanical equipment transmission, and particularly relates to a gear coupling and a hot rolling finishing mill group. The gear coupling comprises a driving end outer gear sleeve, a driving end inner gear ring, a driving end cover, a driven end outer gear sleeve, a driven end inner gear ring, a driven end cover, a first oil retainer and a second oil retainer, wherein the driving end outer gear sleeve and the driving end inner gear ring are respectively provided with a first end and a second end which are opposite, and the first oil retainer is arranged between the second end of the driving end inner gear ring and the second end of the driving end outer gear sleeve; the driving end outer tooth shaft sleeve and the driving end inner tooth ring are respectively provided with a first end and a second end which are opposite, the second oil retainer is arranged between the first end of the driven end inner tooth ring and the first end of the driven end outer tooth shaft sleeve, the first oil retainer and the second oil retainer form a closed cavity, and when lubricating grease is supplemented to the first tooth head and the second tooth head, the lubricating grease cannot enter the closed cavity due to the blocking of the first oil retainer and the second oil retainer, so that the using amount of the lubricating grease is greatly saved.
Description
Technical Field
The application belongs to the technical field of mechanical equipment transmission, and particularly relates to a gear coupling and a hot rolling finishing mill group.
Background
The large drum-shaped tooth coupler has strong bearing capacity, can compensate the installation errors of the angle direction, the axial direction and the radial direction caused by the misalignment of the axes of two connecting shafts, has wide application in the aspect of shafting transmission under the working condition of low speed and heavy load, and is particularly applied between a main motor and a main speed reducer of a hot rolling finishing mill group of a steel enterprise.
The inner teeth and the outer teeth of the tooth coupling are meshed through the gear pair, and in actual operation, the inner tooth surfaces and the outer tooth surfaces of the tooth coupling can periodically and axially slide relatively, so that grease is generally used for lubricating the gear pair in the prior art to prevent the surface of the gear pair from being worn, but when the grease is supplemented, grease is required to be filled in all cavities inside the tooth coupling, the backlash and the tooth top clearance of the meshed gear pair can be filled with the grease, so that the surface of working teeth can be fully lubricated, and the cavities inside the tooth coupling comprise non-transmission parts which do not need to be lubricated, so that the grease is greatly wasted.
Disclosure of Invention
The gear coupling and the hot rolling finishing mill group provided by the application solve the technical problem of great waste of grease in the prior art.
In one aspect, the application provides a tooth coupling and a hot rolling finishing mill group, wherein the tooth coupling comprises a driving end external tooth shaft sleeve, a driving end annular gear, a driving end cover, a driven end external tooth shaft sleeve, a driven end annular gear, a driven end cover, a first oil retainer and a second oil retainer, wherein:
the driving end cover, the driving end outer gear sleeve, the driving end inner gear ring and the first gear head enclose a first oil cavity, the first oil retainer is arranged between the second end of the driving end inner gear ring and the second end of the driving end outer gear sleeve, and the first oil retainer, the driving end outer gear sleeve, the driving end inner gear ring and the first gear head enclose a second oil cavity;
the driven end outer gear sleeve is arranged opposite to the driving end outer gear sleeve, the driven end outer gear sleeve and the driven end inner gear ring are also provided with a first end and a second end which are opposite to each other, the second end of the driving end inner gear ring is connected with the first end of the driven end inner gear ring, a second tooth head is arranged in the middle of the peripheral surface of the driven end outer gear sleeve, the middle of the driven end inner gear ring is meshed with the second tooth head, a driven end cover is arranged between the second end of the driven end inner gear ring and the second end of the driven end outer gear sleeve, a third oil cavity is formed by surrounding the driven end outer gear sleeve, the driven end inner gear ring and the second tooth head, and a second oil baffle ring is arranged between the first end of the driven end ring and the first end of the driven end outer gear sleeve, the first oil cavity is formed by surrounding the first oil cavity, the driven end outer gear sleeve and the fourth oil cavity.
Further, a first flange plate is arranged at the second end of the inner gear ring at the driving end, a second flange plate is arranged at the first end of the inner gear ring at the driven end, and the first flange plate is connected with the second flange plate through a second bolt.
Further, the first oil retainer and the second oil retainer both comprise assembly rings and flanges arranged on the periphery of the assembly rings, the outer rings of the flanges are covered with flexible layers, the assembly rings of the first oil retainer are fixedly sleeved on the outer tooth shaft sleeve of the driving end, and the flexible layers of the flanges of the first oil retainer are in contact with the inner tooth ring of the driving end; the assembly ring of the second oil retainer is fixedly sleeved on the driven-end outer gear shaft sleeve, and the flexible layer of the flange of the second oil retainer is contacted with the driven-end inner gear ring.
Further, the first oil retainer and the second oil retainer are made of steel materials, the inner ring of the first oil retainer is in interference fit with the outer ring of the outer gear sleeve at the driving end, and the inner ring of the second oil retainer is in interference fit with the outer ring of the outer gear sleeve at the driven end.
Further, the first oil retainer and the second oil retainer are made of flexible materials, each of the first oil retainer and the second oil retainer is composed of two semi-rings, first bosses are arranged on the outer sides of two ends of one of the semi-ring openings, second bosses are arranged on the outer sides of two ends of the other of the semi-ring openings, the first bosses and the second bosses are in one-to-one correspondence, and each first boss is fixedly connected with the corresponding second boss.
Further, the distance between the flange of the first oil retainer and the inner gear ring at the driving end and the distance between the flange of the second oil retainer and the inner gear ring at the driven end are 3-6 mm, the flexible layer is in a strip-shaped structure, and the diameter of the strip-shaped structure is 6-10 mm.
Further, a first exhaust device and a second exhaust device are arranged on one vertical side of the gear coupling, wherein:
the first exhaust device is arranged at the top of the second oil cavity, the second exhaust device is arranged at the top of the fourth oil cavity, the first exhaust device and the second exhaust device comprise a body, a channel, an exhaust hole and a limiting component, wherein the channel is arranged in the body, the exhaust hole is communicated with one side of the channel, the blocking component is arranged in the channel, the blocking component is used for operatively blocking the exhaust hole, the channel of the first exhaust device is communicated with the second oil cavity, and the channel of the second exhaust device is communicated with the fourth oil cavity.
Further, the passageway includes first passageway and second passageway, the shutoff assembly includes first bolt, elastic component and shutoff piece, wherein:
the body is internally and sequentially provided with the first channel and the second channel from bottom to top, the first channel is coaxially communicated with the second channel, the inner diameter of the first channel is smaller than that of the second channel, limiting steps are formed at the left side and the right side of the joint of the first channel and the second channel, and the exhaust hole is communicated with one side of the second channel;
the top of the second channel is in threaded connection with the first bolt, the bottom of the first bolt is connected with the elastic piece, the bottom of the elastic piece is connected with the blocking block, when the first bolt is screwed down, the elastic piece is in a compressed state, the blocking block is arranged on the limiting step, and the blocking block covers the exhaust hole; when the first bolt is unscrewed, the elastic piece is released, and the blocking block is separated from the exhaust hole; the first passage of the first exhaust device is communicated with the second oil cavity, and the first passage of the second exhaust device is communicated with the fourth oil cavity.
Further, a stop iron is arranged on the other vertical side of the gear coupling, a proximity switch is further arranged under the gear coupling, when the first exhaust device and the second exhaust device are located at the highest point, the stop iron is in contact with the proximity switch, and the proximity switch and a prime motor assembled on the outer gear shaft sleeve of the driving end are electrically connected with the controller.
On the other hand, the application also provides a hot rolling finishing mill group 10, which comprises the gear coupling.
The application has the following beneficial effects:
the application provides a hot rolling finishing mill group, which comprises a gear coupling, wherein a first oil retainer is additionally arranged between the second end of an outer gear shaft sleeve at a driving end and the second end of an inner gear ring at a driving end, and a second oil retainer is additionally arranged between the first end of an outer gear shaft sleeve at a driven end and the first end of the inner gear ring at the driven end, so that a closed cavity is formed between the first oil retainer and the second oil retainer, the closed cavity is a non-transmission part, lubricating grease is not required, and when the first gear head and the second gear head are supplemented with lubricating grease, the lubricating grease cannot enter the closed cavity due to the obstruction of the first oil retainer and the second oil retainer, so that the use amount of the lubricating grease is greatly saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application.
Fig. 1 is a cross-sectional view of a large drum-type tooth coupling with a slinger provided in this embodiment;
fig. 2 is a front view of a first oil deflector and a second oil deflector made of steel material according to the present embodiment;
fig. 3 is a side view of the first oil slinger and the second oil slinger of steel material provided by this embodiment;
fig. 4 is a front view of the first oil slinger and the second oil slinger of flexible material provided by this embodiment;
FIG. 5 is a side view of the first and second oil slingers of flexible material provided in this embodiment;
fig. 6 is a structural diagram of a first exhaust device and a second exhaust device provided in the present embodiment.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
The application provides a tooth coupling, fig. 1 is a cross-sectional view of a large drum-type tooth coupling with oil slinger provided by the embodiment, and in combination with fig. 1, the tooth coupling comprises a driving end external tooth shaft sleeve 1, a driving end internal tooth ring 5, a driving end cover 3, a driven end external tooth shaft sleeve 14, a driven end internal tooth ring 10 and a driven end cover 12, a first oil slinger and a second oil slinger, wherein the inner ring of the driving end external tooth shaft sleeve 1 of the tooth coupling is assembled on the outer ring of a main shaft of a prime motor, and the inner ring of the driven end external tooth shaft sleeve 14 of the tooth coupling is assembled on the outer ring of the main shaft of a load machine.
Referring to fig. 1, in this embodiment, the outer gear sleeve 1 at the driving end and the inner gear ring 5 at the driving end have opposite first ends and second ends, a first gear head 2 is disposed in the middle of the outer peripheral surface of the outer gear sleeve 1 at the driving end, the middle of the inner gear ring 5 at the driving end is meshed with the first gear head 2, the end cover 3 at the driving end is disposed between the first end of the inner gear ring 5 and the first end of the outer gear sleeve 1 at the driving end, the end cover 3 at the driving end, the outer gear sleeve 1 at the driving end, the inner gear ring 5 at the driving end and the first gear head 2 enclose a first oil cavity 4, a first oil retainer 15 is disposed between the second end of the inner gear ring 5 at the driving end and the second end of the outer gear sleeve 1 at the driving end, the first oil retainer 15, the outer gear sleeve 1 at the driving end, the inner gear ring 5 and the first gear head 2 enclose a second oil cavity 6.
Further, in this embodiment, the driven-end external gear sleeve 14 is disposed opposite to the driving-end external gear sleeve 1, the driven-end external gear sleeve 14 and the driven-end internal gear ring 10 also have opposite first ends and second ends, the second end of the driving-end internal gear ring 5 is connected to the first end of the driven-end internal gear ring 10, the second tooth head 13 is disposed in the middle of the outer peripheral surface of the driven-end external gear sleeve 14, the middle of the driven-end internal gear ring 10 is disposed on the second tooth head 13 in a meshed manner, the driven-end cover 12 is disposed between the second end of the driven-end internal gear ring 10 and the second end of the driven-end external gear sleeve 14, the driven-end cover 12, the driven-end external gear sleeve 14, the driven-end internal gear ring 10 and the second tooth head 13 enclose a third oil cavity 11, the second oil retainer 16 is disposed between the first end of the driven-end external gear ring 10 and the first end of the driven-end external gear sleeve 14, the first oil retainer 15, the driven-end external gear sleeve 14, the driven-end internal gear ring 10 and the first tooth head 2 enclose an oil cavity fourth 9.
According to the gear coupling provided by the embodiment, the first oil retainer 15 and the second oil retainer 16 are added, the closed cavity formed between the first oil retainer 15 and the second oil retainer 16 is a non-transmission part, lubricating grease is not needed, when lubricating grease is injected into the first oil cavity 4, the second oil cavity 6, the third oil cavity 9 and the fourth oil cavity 11, the lubricating grease cannot enter the closed cavity due to the blocking of the first oil retainer 15 and the second oil retainer 16, the using amount of the lubricating grease is greatly saved, and when the gear coupling operates, the meshing surface gaps of the first gear head 2 and the second gear head 13 are always filled with the lubricating grease under the action of centrifugal force.
Referring to fig. 1, in this embodiment, a first flange 31 is disposed at a second end of the driving end ring gear 5, a second flange 32 is disposed at a first end of the driven end ring gear 10, and the first flange 31 and the second flange 32 are connected by a second bolt 33, so that the driving end outer gear sleeve 1 is connected with the driven end outer gear sleeve 14.
The shaft coupling can cause the situation that the shaft center is not on the same straight line when in operation, so that the oil retainer and the inner gear ring interfere and are extruded mutually, based on the fact, fig. 2 is a front view of the first oil retainer and the second oil retainer which are made of steel materials, fig. 3 is a side view of the first oil retainer and the second oil retainer which are made of steel materials, according to the embodiment, in combination with fig. 2 and fig. 3, the first oil retainer 15 and the second oil retainer 16 both comprise an assembly ring 20 and a flange 19 which is arranged on the periphery of the assembly ring 20, in the embodiment, the flange 19 is arranged at one end of the assembly ring 20, the outer ring of the flange 19 is covered with a flexible layer, the assembly ring 20 of the first oil retainer 15 is fixedly sleeved on the outer gear sleeve 1 of the driving end, and the flexible layer of the flange 19 of the first oil retainer 15 is contacted with the inner gear ring 5 of the driving end; the assembly ring 20 of the second oil retainer 16 is fixedly sleeved on the driven end external gear shaft sleeve 14, and a flexible layer of the flange 19 of the second oil retainer 16 is contacted with the driven end annular gear 10 and can counteract interference and extrusion between the oil retainer and the annular gear.
Preferably, the flexible layer in this embodiment may be rubber, felt, or the like; the outer ring of the flange 19 may be provided with a sealing groove 23, the flexible layer being mounted in the sealing groove 23, a portion of the flexible layer protruding outside the sealing groove 23.
When the first oil retainer 15 and the second oil retainer 16 are made of steel, the first oil retainer 15 and the second oil retainer 16 are of an integrated structure, the inner ring of the first oil retainer 15 is in interference fit with the outer ring of the driving end outer tooth shaft sleeve 1, and the inner ring of the second oil retainer 16 is in interference fit with the outer ring of the driven end outer tooth shaft sleeve 14.
Further, the first oil retainer 15 and the second oil retainer 16 may be made of flexible materials, fig. 4 is a front view of the first oil retainer and the second oil retainer made of flexible materials provided in this embodiment, fig. 5 is a side view of the first oil retainer and the second oil retainer made of flexible materials provided in this embodiment, when the first oil retainer 15 and the second oil retainer 16 are made of flexible materials, the first oil retainer 15 and the second oil retainer 16 are made of split structures, the first oil retainer 15 and the second oil retainer 16 are each composed of two half rings, wherein the outer sides of two ends of one half ring opening are respectively provided with a first boss 21, the outer sides of two ends of the other half ring opening are respectively provided with a second boss 22, the first bosses 21 are in one-to-one correspondence with the second bosses 22, each first boss 21 is fixedly connected with the corresponding second boss 22, so that the two half rings of the first oil retainer 15 are fixedly sleeved on the external end tooth 1, the two half rings of the second oil retainer 16 are fixedly sleeved on the external end shaft sleeve 14, and in particular, the two half rings are fixedly sleeved on the external end sleeve 14, and each first boss 21 is connected with the corresponding first boss 22 through a bolt.
It is conceivable that the first bosses 21 are arranged on the outer sides of two ends of one of the half ring openings, the grooves are arranged on the outer sides of two ends of the other half ring opening, the first bosses 21 are arranged in one-to-one correspondence with the grooves, and each first boss 21 is embedded into the corresponding groove, so that the two half rings are connected.
Preferably, the flexible material may be synthetic resin, plastic plate, nylon, etc., which is not limited in this embodiment.
Further, in this embodiment, the distance between the flange 19 of the first oil retainer 15 and the driving end ring gear 5 and the distance between the flange 19 of the second oil retainer 16 and the driven end ring gear 10 are 3-6 mm, the flexible layer is in a strip structure, the diameter of the strip structure is 6-10 mm, and the flexible layer is slightly extruded to ensure tightness when the gear coupling operates.
When the prime mover or the loader is replaced, the coaxiality and the opening degree of the two main shafts are aligned by using the dial indicator, the base of the dial indicator is generally fixed on the second end face of the outer gear sleeve 1 at the driving end, the pointer is fixed on the first end face of the outer gear sleeve 14 at the driven end, in order to avoid the influence of the first oil retainer 15 and the second oil retainer 16 on the coaxiality, in this embodiment, the distance between the first oil retainer 15 and the second end face of the outer gear sleeve 1 at the driving end is 30-50 mm, and the distance between the second oil retainer 16 and the first end face of the outer gear sleeve 14 at the driven end is 30-50 mm.
During actual continuous operation, as the meshing tooth surfaces of the first tooth head 2 and the second tooth head 13 will periodically slide axially relatively, heat is generated due to dynamic friction and static friction, internal temperature rise causes positive pressure to be formed inside the tooth coupling, additional continuous axial force is applied to main shaft bearings of the prime mover and the load machine, the service lives of the bearings of the prime mover and the load machine are shortened, and accordingly internal high-temperature gas needs to be periodically discharged, based on the fact that fig. 6 is a block diagram of the first exhaust device 7 and the second exhaust device 8 provided in the embodiment, and in combination with fig. 1 and 6, one vertical side of the tooth coupling is provided with the first exhaust device 7 and the second exhaust device 8, the first exhaust device 7 is arranged at the top of the second oil cavity 6, the second exhaust device 8 is arranged at the top of the fourth oil cavity 9, the first exhaust device 7 and the second exhaust device 8 both comprise a body 24, a channel, an exhaust hole 28 and a limiting component, wherein the body 24 is provided with the channel, the exhaust hole 28 is communicated with one side of the channel, the blocking component is arranged in the channel, the blocking component is operatively communicated with the second exhaust hole 8, and the blocking component 28 is communicated with the second channel 9.
Further, the channel comprises a first channel 25 and a second channel 26, the plugging assembly comprises a first bolt 27, an elastic piece 29 and a plugging block 30, the first channel 25 and the second channel 26 are sequentially arranged in the body 24 from bottom to top, the first channel 25 is coaxially communicated with the second channel 26, the inner diameter of the first channel 25 is smaller than that of the second channel 26, limit steps are formed on the left side and the right side of the joint of the first channel 25 and the second channel 26, and the air exhaust hole 28 is communicated with one side of the second channel 26; the top of the first channel 25 is provided with a first bolt 27, the bottom of the first bolt 27 is connected with an elastic piece 29, the bottom of the elastic piece 29 is connected with a blocking block 30, when the first bolt 27 is screwed down, the elastic piece 29 is in a compressed state, the blocking block 30 is arranged on a limiting step, and the blocking block 30 covers the exhaust hole 28; when the first bolt 27 is unscrewed, the elastic member 29 is released, and the blocking block 30 is separated from the vent hole 28; the first passage 25 of the first venting device 7 communicates with the second oil chamber 6, and the first passage 25 of the second venting device 8 communicates with the fourth oil chamber 9.
When the gear coupling is operated, the first bolt 27 is screwed down, and the blocking block 30 covers the exhaust hole 28, so that noise is avoided; when the high-temperature gas needs to be discharged, the first bolt 27 is loosened, the elastic piece 29 is released along with the first bolt, the blocking block 30 moves upwards to be separated from the exhaust hole 28, and the high-temperature gas in the oil cavity overflows from the exhaust hole 28 along with the blocking block.
Preferably, in this embodiment, the elastic member 29 is a spring, and the blocking block 30 is a steel ball.
In practical applications, for example, in iron and steel enterprises, two vertical faces of a flat head sleeve of a transmission shaft of a finishing mill are kept vertical, the vertically arranged flat head vertical faces of working rolls are required to be inserted into the flat head sleeve of the transmission shaft of the finishing mill, as a first air discharging device 7 and a second air discharging device 8 can rotate along with a gear coupling, if the first air discharging device 7 and the second air discharging device 8 are not at the highest point when the gear coupling is stopped, inconvenience can be caused, based on the fact that a stop iron 17 is arranged on the other vertical side of the gear coupling in the embodiment, a proximity switch 18 is further arranged right below the gear coupling, when the first air discharging device 7 and the second air discharging device 8 are at the highest point, the stop iron 17 is in contact with the proximity switch 18, the proximity switch 18 and a prime mover assembled on an outer gear sleeve 1 of a driving end are electrically connected with a controller, and after the stop iron 17 is in contact with the proximity switch 18, the proximity switch 18 sends a stop signal to the controller to control the prime mover to stop the gear coupling, so that the gear coupling is stopped.
Further, in this embodiment, the stop iron 17 is magnetically contacted with the proximity switch 18, the effective detection distance of the proximity switch 18 is 10-15 mm, and when the first exhaust device 7 and the second exhaust device 8 are located at the highest point, the distance between the stop iron 17 and the proximity switch 18 is 10mm.
Example 2
The embodiment provides a hot rolling finishing mill group, which comprises a tooth coupling in the embodiment 1, wherein a first oil retainer 15 and a second oil retainer 16 are added to the tooth coupling, a closed chamber formed between the first oil retainer 15 and the second oil retainer 16 is a non-transmission part, lubricating grease is not needed, and when lubricating grease is injected into a first oil cavity 4, a second oil cavity 6, a third oil cavity 9 and a fourth oil cavity 11, the lubricating grease cannot enter the closed chamber due to the obstruction of the first oil retainer 15 and the second oil retainer 16, so that the use amount of the lubricating grease is greatly saved; because the vertical one side of tooth shaft coupling is equipped with first exhaust apparatus and second exhaust apparatus, can regularly discharge inside high temperature gas, avoid prime mover and load machine's bearing life to shorten to the vertical opposite side of tooth shaft coupling is equipped with the keep-off iron 17, still is provided with proximity switch 18 under the tooth shaft coupling, and when first exhaust apparatus 7 and second exhaust apparatus 8 were located the highest point, the keep-off iron 17 contacted with proximity switch 18, and proximity switch 18 and the prime mover of assembly 1 on the outer tooth axle sleeve of drive end are all connected with the controller electricity.
Specifically, in this embodiment, the prime mover is a motor, the load machine is a speed reducer, the proximity switch 18 and the motor are all electrically connected with the controller, according to a set program, when normal production is performed, the proximity switch 18 is not electrified, when production is completed, after the motor stops, the proximity switch 18 is electrified, at this time, the motor rotates a certain angle again until the stop iron 17 contacts with the proximity switch 18, the proximity switch 18 sends a stop signal to the controller, the controller controls the motor to stop, at this time, the first exhaust device 7 and the second exhaust device 8 are at the highest point, and the flat head elevation of the work roll arranged vertically is conveniently inserted into the flat head sleeve of the transmission shaft of the finishing mill.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The utility model provides a tooth shaft coupling, its characterized in that, tooth shaft coupling includes drive end external tooth axle sleeve, drive end ring gear, drive end cover, driven end external tooth axle sleeve, driven end ring gear, driven end cover, first oil retainer and second oil retainer, wherein:
the driving end cover, the driving end outer gear sleeve, the driving end inner gear ring and the first gear head enclose a first oil cavity, the first oil retainer is arranged between the second end of the driving end inner gear ring and the second end of the driving end outer gear sleeve, and the first oil retainer ring, the driving end outer gear sleeve, the driving end inner gear ring and the first gear head enclose a second oil cavity;
the driven end outer gear sleeve is arranged opposite to the driving end outer gear sleeve, the driven end outer gear sleeve and the driven end inner gear ring are also provided with a first end and a second end which are opposite to each other, the second end of the driving end inner gear ring is connected with the first end of the driven end inner gear ring, a second tooth head is arranged in the middle of the peripheral surface of the driven end outer gear sleeve, the middle of the driven end inner gear ring is meshed with the second tooth head, a driven end cover is arranged between the second end of the driven end inner gear ring and the second end of the driven end outer gear sleeve, a third oil cavity is formed by surrounding the driven end cover, the driven end inner gear ring and the second tooth head, and a second oil baffle ring is arranged between the first end of the driven end ring and the first end of the driven end outer gear sleeve, the first oil cavity is formed by surrounding the first oil cavity, the driven end outer gear sleeve and the fourth oil cavity;
the distance between the first oil retainer and the second end face of the outer-tooth shaft sleeve of the driving end is 30-50 mm, and the distance between the second oil retainer and the first end face of the outer-tooth shaft sleeve of the driven end is 30-50 mm;
the vertical one side of tooth shaft coupling is equipped with first exhaust apparatus and second exhaust apparatus, wherein:
the first exhaust device is arranged at the top of the second oil cavity, the second exhaust device is arranged at the top of the fourth oil cavity, the first exhaust device and the second exhaust device comprise a body, a channel, an exhaust hole and a limiting component, wherein the channel is arranged in the body, the exhaust hole is communicated with one side of the channel, the blocking component is arranged in the channel, the blocking component is used for operatively blocking the exhaust hole, the channel of the first exhaust device is communicated with the second oil cavity, and the channel of the second exhaust device is communicated with the fourth oil cavity;
the passageway includes first passageway and second passageway, the shutoff subassembly includes first bolt, elastic component and shutoff piece, wherein:
the body is internally and sequentially provided with the first channel and the second channel from bottom to top, the first channel is coaxially communicated with the second channel, the inner diameter of the first channel is smaller than that of the second channel, limiting steps are formed at the left side and the right side of the joint of the first channel and the second channel, and the exhaust hole is communicated with one side of the second channel;
the top of the second channel is in threaded connection with the first bolt, the bottom of the first bolt is connected with the elastic piece, the bottom of the elastic piece is connected with the blocking block, when the first bolt is screwed down, the elastic piece is in a compressed state, the blocking block is arranged on the limiting step, and the blocking block covers the exhaust hole; when the first bolt is unscrewed, the elastic piece is released, and the blocking block is separated from the exhaust hole; the first passage of the first exhaust device is communicated with the second oil cavity, and the first passage of the second exhaust device is communicated with the fourth oil cavity.
2. The tooth coupling as defined in claim 1, wherein said second end of said driving end ring gear is provided with a first flange, said first end of said driven end ring gear is provided with a second flange, and said first flange is connected to said second flange by a second bolt.
3. The gear coupling according to claim 1, wherein the first oil retainer and the second oil retainer each comprise an assembly ring and a flange arranged on the periphery of the assembly ring, the outer ring of the flange is covered with a flexible layer, the assembly ring of the first oil retainer is fixedly sleeved on the outer gear sleeve of the driving end, and the flexible layer of the flange of the first oil retainer is in contact with the inner gear ring of the driving end; the assembly ring of the second oil retainer is fixedly sleeved on the driven-end outer gear shaft sleeve, and the flexible layer of the flange of the second oil retainer is contacted with the driven-end inner gear ring.
4. A gear coupling as claimed in claim 3 wherein said first and second oil slingers are each of steel material, an inner race of said first oil slinger being in interference fit with an outer race of said drive end externally toothed sleeve, an inner race of said second oil slinger being in interference fit with an outer race of said driven end externally toothed sleeve.
5. A gear coupling as claimed in claim 3, wherein the first oil retainer and the second oil retainer are made of flexible materials, each of the first oil retainer and the second oil retainer is composed of two half rings, wherein first bosses are respectively arranged on the outer sides of two ends of one of the half ring openings, second bosses are respectively arranged on the outer sides of two ends of the other half ring opening, the first bosses are in one-to-one correspondence with the second bosses, and each first boss is fixedly connected with the corresponding second boss.
6. A gear coupling according to claim 3, wherein the distance between the flange of the first oil retainer and the inner gear ring at the driving end and the distance between the flange of the second oil retainer and the inner gear ring at the driven end are 3-6 mm, the flexible layer is in a strip-shaped structure, and the diameter of the strip-shaped structure is 6-10 mm.
7. The tooth coupling as claimed in claim 1, wherein a stop iron is provided at the other vertical side of said tooth coupling, a proximity switch is further provided under said tooth coupling, said stop iron is in contact with said proximity switch when said first exhaust means and said second exhaust means are at the highest point, and said proximity switch and a prime mover mounted on said outer tooth sleeve of said drive end are electrically connected to a controller.
8. A hot finishing block comprising the tooth coupling as defined in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794200.9A CN113649418B (en) | 2021-07-14 | 2021-07-14 | Gear coupling and hot rolling finishing mill group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794200.9A CN113649418B (en) | 2021-07-14 | 2021-07-14 | Gear coupling and hot rolling finishing mill group |
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| CN113649418A CN113649418A (en) | 2021-11-16 |
| CN113649418B true CN113649418B (en) | 2023-10-24 |
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| CN111998009A (en) * | 2020-09-15 | 2020-11-27 | 大唐贵州发耳发电有限公司 | Gear coupling of main oil pump of steam turbine set and modification method thereof |
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| US3095713A (en) * | 1961-11-20 | 1963-07-02 | Zurn Ind Inc | Seal and flexible gear type coupling |
| CN2564792Y (en) * | 2002-08-15 | 2003-08-06 | 襄樊市博亚机械有限公司 | Short Rzeppa synchronous universal coupling |
| CN104128368A (en) * | 2014-07-16 | 2014-11-05 | 镇江市宏业科技有限公司 | Aluminum foil mill stop locating device |
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|---|---|
| CN113649418A (en) | 2021-11-16 |
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