Bar production cooling bed loading and unloading steel roller way transmission device with self-cooling function

Abstract

The utility model belongs to the field of production conveying devices, and particularly relates to a bar production cooling bed loading and unloading steel roller way transmission device with a self-cooling function, a motor drives a transmission roller to rotate at the same time during transmission, fan blades rotate to form a fan, the fan is blown to one side of the motor, air passes through an air channel formed by a hollow roller body, and the air channel is communicated with the motor. And meanwhile, the roller body, the bracket, the motor and other components are air-cooled. The mounting shaft of the driving roller is mounted in the middle of the motor shaft, the roller body is sleeved on the outer side of the motor shaft, and the length of the mounting shaft is smaller than that of the motor shaft, so that the contact area between the mounting shaft and the motor shaft is reduced, and the heat conduction speed to the motor shaft is reduced; and wind generated by rotation of the fan blades can quickly cool the motor shaft exposed outside in the roller body, so that a motor bearing is effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production conveying device field, concretely relates to a bar production cooling bed upper unloading steel roller way transmission device with self -cooling function. BACKGROUND

[0002] The bar cooling bed input roller way is located behind the double-length flying shear and is used for conveying the rolled piece after rolling. It has the characteristics of large number of uses, fast rotation speed, large speed range, continuous work, poor working environment, etc. The roller body is worn out quickly, and the roller body and the red steel (generally about 1000 DEG C) are directly contacted. The heat of the roller body and the roller way support is easily conducted to the roller way motor. The motor is often burned and the roller body is worn out. The roller body is replaced frequently. If the replacement is not timely, the rolled piece will jump during the conveying process, or the front and rear two rolled pieces will collide due to poor conveying, and other steel disorder phenomena will occur, causing production interruption, scrap steel and other economic losses.

[0003] At present, the bar cooling bed input roller way basically does not take additional cooling measures. In order to ensure the wear resistance of the roller body, the current generally adopts local wear-resistant blocks, and no cooling measures are taken for the roller body. In the steel rolling production, the roller body of the roller way is cooled by circulating water cooling. However, for the bar cooling bed input roller way, if the water cooling method is adopted, the weight of the roller way will be increased. In addition, the running speed is high, the moment of inertia is large, and the running stability of the roller way is affected. At the same time, due to the large number of bar cooling bed input roller ways, generally one set of roller way is arranged every 1.2 meters, and generally about 100 sets of roller ways are needed for the production line. The water cooling pipeline arrangement is complex, the installation is difficult, the maintenance intensity is large, and the pipeline damage will cause adverse effects on the input roller way motor.

[0004] At present, the bar cooling bed input roller way motor basically does not take additional cooling measures. Generally, the motor is directly connected with the roller way support by bolts, and some increase a steel structure between the roller way support and the motor to increase the distance between the roller way support and the motor to reduce heat conduction. However, the structure is large, the manufacturing cost is high, and the heat insulation effect is limited.

[0005] Due to the above reasons, at present, most bar production lines add fans, increase doors and windows, and improve the ventilation conditions in the area of the cooling bed input roller way to improve the working environment. However, generally the effect is limited.

[0006] Chinese patent document CN116477265A (202310208941.3) discloses a self-cooling cold bed upper unloading steel roller drive device and a self-cooling method. The device comprises a support, a motor arranged on the support, and a transmission roller arranged on the rotary end of the motor. The transmission roller comprises an inner core body for connecting the rotary end of the motor, an outer roller body for supporting materials arranged outside the inner core body, and a wind cooling blade connected between the inner core body and the outer roller body. The wind cooling blade is a heat insulating body, and a wind cooling channel corresponding to the motor is formed between the inner core body and the outer roller body. The wind cooling blade cools the motor during rotation, reduces heat transfer from the transmission roller to the motor shaft, cools the motor, and prevents the motor from malfunctioning. In order to cool the motor shaft, the above-mentioned transmission device must be provided with heat dissipation holes on the wall of the core body, which is not conducive to processing and preparation. Practical new type content

[0007] The utility model discloses a kind of rod production cold bed upper unloading steel roller drive devices with self-cooling function, utilize the cooling wind of transmission roller high-speed rotation to cool motor, by shortening the length of connecting position between transmission roller and motor shaft, further reduce heat transfer speed, and can effectively cool exposed motor shaft.

[0008] The technical problem to be solved by the utility model is solved by the following technical scheme: a kind of rod production cold bed upper unloading steel roller drive devices with self-cooling function, including support, motor being arranged on support and transmission roller being connected with motor;

[0009] The motor includes a motor shaft.

[0010] The transmission roller includes a roll body, a mounting shaft and a fan blade located between the roll body and the mounting shaft, the fan blade is uniformly distributed around the mounting shaft, and a cooling air duct is arranged between the fan blades.

[0011] The mounting shaft is installed at the middle position of the motor shaft, the roll body is sleeved outside the motor shaft, and the length of the mounting shaft is less than the length of the motor shaft.

[0012] The motor is located at the air outlet side of the cooling air duct.

[0013] Preferably, a first ventilation hole is arranged on the support, and the first ventilation hole is used to send air to the motor side. By arranging the first ventilation hole on the support, the air entering the cooling air duct is sent to the motor side to fully cool the motor.

[0014] The utility model discloses further preferably include with the fixed flange of motor connection, the fixed flange detachable setting on the support, be provided with second vent on the fixed flange. In order to carry out more effective cooling to motor, set up second vent on the fixed flange, guarantee the wind of second vent direct blowing to motor shell, take away the heat of motor.

[0015] The utility model discloses further preferably include the heat insulation pad of setting between fixed flange and support. Utilize the heat insulation pad to cut off the conduction heat of support to motor, further improve motor operating environment.

[0016] The utility model discloses further preferably, the thickness of heat insulation pad is 10~15mm. In order to guarantee the heat insulation effect, keep the thickness of heat insulation pad at 10~15mm, and the heat insulation also plays the role of buffer protection to motor.

[0017] The utility model discloses further preferably, the heat dissipation hole is set up in the installation shaft lateral wall. Through setting up heat dissipation hole on the installation shaft lateral wall, realized the quick heat dissipation of motor shaft with the cooperation of installation shaft.

[0018] The utility model discloses further preferably, the wall thickness of roll body is 15~20mm. Since roll body is hollow structure, in order to guarantee the strength of roll body and slow down the heat conduction speed, keep the wall thickness of roll body at 15~20mm.

[0019] The utility model discloses further preferably, the installation shaft adopts key connection with motor shaft. The installation shaft adopts key connection with motor shaft, can effectively avoid the transmission roller axial excursion or the relative rotation with motor shaft along motor shaft, and convenient installation and disassembly.

[0020] The utility model discloses further preferably, roll body, installation shaft, fan blade adopt integrally casted. Roll body, installation shaft, fan blade adopt integrally casted, help to improve the strength of roll body, installation shaft and fan blade junction, guarantee the overall strength of transmission roller.

[0021] The utility model discloses further preferably, the outer surface of roll body is provided with heat insulation plating. Through setting up heat insulation plating on the outer surface of roll body, reduce the heat absorption of roll body, further protect the motor.

[0022] Since the rolled piece transmits heat to the motor through the transmission roller, the temperature of the transmission is reduced. Inspired by the fan, the high-speed rotating transmission roller is also a high-speed rotating part, and its own energy can be fully utilized for ventilation and cooling. By changing the support web structure of the transmission roller, the original vertical plane hole layout is modified into a spatial 120° cross three-section connected structure, and the blade outer edge is connected with the hub inner cavity by casting, which not only ensures the support strength of the hub web, but also reduces the overall weight of the transmission roller, so that the cooling fan convection effect is generated when the web blade rotates, part of the heat is taken away, and the local cooling effect is achieved.

[0023] Compared with the prior art, the beneficial effects of the utility model are that: the utility model drives the transmission roller to rotate at the same time as the motor, the fan is formed by the rotation of the fan blade, and the fan blows to the side of the motor, and the air passage formed by the hollow roller body blows to the roller body, support, motor and other components.

[0024] The utility model discloses a transmission roller is installed in the middle position of the motor shaft, and the roller body is arranged on the outside of the motor shaft, so that the contact area between the mounting shaft and the motor shaft is reduced, the heat conduction speed to the motor shaft is reduced, and the motor shaft can be quickly cooled by the wind generated by the rotation of the fan blade, and the motor bearing is effectively protected. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure schematic view of the rod production cooling bed upper unloading steel roller drive device with self-cooling function;

[0026] Figure 2 It is a perspective view of the rod production cooling bed upper unloading steel roller drive device with self-cooling function;

[0027] Figure 3 It is the front view of the transmission roller;

[0028] Figure 4 It is the sectional view of the transmission roller;

[0029] In the drawing, 1 is a support, 11 is a first ventilation hole;

[0030] 2 is a motor, and 21 is a motor shaft;

[0031] 3 is a transmission roller, 31 is a roller body, 32 is a mounting shaft, 321 is a heat dissipation hole, 33 is a fan blade, and 34 is a cooling air duct;

[0032] 4 is a fixed flange, 41 is a second ventilation hole, and 5 is a heat insulation pad. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings.

[0034] As shown in Figure 1 and Figure 2 A rod production cooling bed upper unloading steel roller drive device with self-cooling function, comprising a support 1, a motor 2 arranged on the support 1 and a transmission roller 3 connected with the motor 2.

[0035] The motor 2 comprises a motor shaft 21.

[0036] The transmission roller 3 comprises a roller body 31 and a mounting shaft 32 arranged coaxially and a fan blade 33 located between the roller body 31 and the mounting shaft 32, the fan blades 33 are uniformly distributed axially around the mounting shaft 32, and cooling air ducts 34 are arranged between the fan blades 33. Specifically, the roller body 31, the mounting shaft 32 and the fan blade 33 are integrally cast. The wall thickness of the roller body 31 is 15-20 mm. The outer surface of the roller body 31 is provided with a heat insulation plating layer.

[0037] As shown in Figure 3 In the embodiment, the three fan blades 33 are uniformly distributed at 120 degrees between the roller body 31 and the mounting shaft, forming three cooling air ducts 34 uniformly distributed at 120 degrees.

[0038] As shown in Figure 1 The mounting shaft 32 is installed at the middle position of the motor shaft 21, the roller body 31 is sleeved on the outer side of the motor shaft 21, and the length of the mounting shaft 32 is less than the length of the motor shaft 21. Specifically, the mounting shaft 32 and the motor shaft 21 are connected by a key.

[0039] The motor 2 is located at the air outlet side of the cooling air duct 34.

[0040] The support 1 is provided with a first ventilation hole 11, and the first ventilation hole 11 is used for sending air to the side of the motor 2.

[0041] The rod production cooling bed upper unloading steel roller drive device with self-cooling function further comprises a fixed flange 4 connected with the motor 2, the fixed flange 4 is detachably arranged on the support 1, and the fixed flange 4 is provided with a second ventilation hole 41.

[0042] The rod production cooling bed upper unloading steel roller drive device with self-cooling function further comprises a heat insulation pad 5 arranged between the fixed flange 4 and the support 1. Specifically, the heat insulation pad 5 is made of rubber, and the thickness of the heat insulation pad 5 is 10-15 mm.

[0043] In the embodiment, the fixed flange 4 is fixedly connected with the motor 2, the fixed flange 4 is connected with the support 1 through bolts, the fixed flange 4 is provided with bolt through holes, the support 1 is provided with bolt mounting holes, the heat insulation pad 5 is provided with a circular hole matched with the bolt through holes on the fixed flange 4, and the hole diameter is 2-5 mm larger than the bolt through holes, so that the motor 2 is conveniently fixed on the support 1.

[0044] As shown in Figure 4 The mounting shaft 32 side wall is provided with a heat dissipation hole 321.

[0045] The roller body 31 is a work roller, has a fan blade, directly contacts with red steel, is fixedly installed on the support 1, rotates and generates wind under the driving of the motor 2, blows to one side of the motor 2, and realizes automatic cooling of the whole transmission device under the cooling action of the wind.

[0046] Because the production processes of different models of bars are different, the rolling speeds of different types and specifications of bars are different, and different input roller way conveying speeds are required. The greater the conveying speed is, the faster the roller body 31 rotates, the greater the wind force is, and the better the cooling effect of the bar production cooling bed on the steel unloading roller way transmission device with the self-cooling function is.

[0047] The transmission mode with self-cooling in the embodiment can be applied to other high-speed rotating equipment components, and is particularly suitable for high-temperature and high-speed continuous operation modes (such as some motor transmission devices with a flywheel structure), so that the self-cooling of the system is realized, and the operation environment is improved.

Claims

1. A steel unloading roller conveyor with self-cooling function for bar production cooling bed, characterized in that: The utility model provides a kind of cooling device of motor, including support (1), motor (2) being arranged on support (1) and transmission roller (3) being connected with motor (2); The motor (2) includes a motor shaft (21); The transmission roller (3) includes a roller body (31) and a mounting shaft (32) arranged coaxially, and a fan blade (33) located between the roller body (31) and the mounting shaft, the fan blades (33) are uniformly distributed around the mounting shaft (32), and cooling air ducts (34) are arranged between the fan blades (33); The mounting shaft (32) is installed at the middle position of the motor shaft (21), the roller body (31) is sleeved on the outside of the motor shaft (21), and the length of the mounting shaft (32) is less than the length of the motor shaft (21); The motor (2) is located at the air outlet side of the cooling air duct (34).

2. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 1, characterized in that: A first ventilation hole (11) is provided on the support (1), and the first ventilation hole (11) is used to send air to the side of the motor (2).

3. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 2, characterized in that: A fixed flange (4) connected with the motor (2) is further included, the fixed flange (4) is detachably arranged on the support (1), and a second ventilation hole (41) is provided on the fixed flange (4).

4. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 3, characterized in that: A heat insulation pad (5) is further arranged between the fixed flange (4) and the support (1).

5. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 4, characterized in that: The thickness of the heat insulation pad (5) is 10-15 mm.

6. The bar production cooling bed top unloading roller table drive with self-cooling function according to claim 1, characterized in that: Heat dissipation holes (321) are provided through the side wall of the mounting shaft (32).

7. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 1, characterized in that: The wall thickness of the roller body (31) is 15-20 mm.

8. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 1, characterized in that: The mounting shaft (32) and the motor shaft (21) are connected by a key.

9. The bar production cooling bed upper unloading roller table drive with self-cooling function according to claim 1, characterized in that: The roller body (31), the mounting shaft (32), and the fan blade (33) are integrally cast.

10. The bar production cooling bed top unloading roller table drive with self-cooling function according to claim 1, characterized in that: A heat insulation plating layer is provided on the outer surface of the roller body (31).

Images