Cantilever roller for heating furnace

Abstract

The utility model relates to the technical field of cantilever rollers, and discloses a cantilever roller for a heating furnace, which comprises a rotating shaft seat, a rotating shaft and a wear-resistant shaft sleeve, the rotating shaft is rotatably connected with the rotating shaft seat, the wear-resistant shaft sleeve is detachably and fixedly arranged at the end part of the rotating shaft, and the wear-resistant shaft sleeve comprises an inner shaft sleeve and a wear-resistant lining plate; the multiple wear-resisting lining plates are arranged on the peripheral surface of the inner shaft sleeve in an annular array mode, the wear-resisting lining plates and the inner shaft sleeve are fixedly connected through first bolts, and the end of the rotating shaft is sleeved with the inner shaft sleeve. According to the cantilever roller for the heating furnace, the wear-resisting shaft sleeve is arranged on the surface of the rotating shaft, the wear-resisting lining plate in the wear-resisting shaft sleeve is fixedly installed on the surface of the inner shaft sleeve, the wear-resisting lining plate can be independently detached and replaced, the cooling channel is formed in the wear-resisting lining plate, cooling liquid can flow through the cooling channel, cooling of the wear-resisting lining plate is accelerated, and the service life of the wear-resisting lining plate is prolonged. The effect that the wear-resistant lining plate is replaceable and is compatible with the built-in cooling channel is achieved, and use is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever rollers, in particular to a cantilever roller used for a heating furnace. Background Art

[0002] The cantilever roller of the heating furnace is mainly used for conveying the blank in the furnace when the blank enters and leaves the furnace. For example, the prior art is announced as CN207649370U. The disclosed cantilever roller for the heating furnace includes a roller shaft, a roller, a heat shielding ring, a bearing seat, a motor reducer, a flange, a rotary joint, and a connecting shaft. The roller shaft includes a water inlet pipe, a hollow shaft, an inner tube and a water dividing block. The water inlet pipe is inserted into the inner tube and the liquid is transferred between the inner tube and the inner tube through the water dividing block. The hollow shaft is sleeved on the inner tube; the roller includes a roller head and a baffle. The roller head is sleeved on On the hollow shaft, there is a first internal thread on its inner surface, the retaining ring is sleeved on the hollow shaft close to the roller head and the end of the retaining ring and the end of the hollow shaft are on the same plane, there is a second internal thread on the inner surface of the retaining ring, and there is an external thread on the outer surface of the hollow shaft; the heat shielding ring is sleeved on the hollow shaft close to the roller head; the bearing seat is sleeved on the hollow shaft close to the heat shielding ring; the connecting shaft is sleeved on the water inlet pipe and connected to the flange sleeved thereon; the motor reducer is located between the bearing seat and the flange and sleeved on the connecting shaft; the rotary joint is sleeved on the water inlet pipe.

[0003] During actual use, the blank is in direct contact with the surface of the cantilever roller, causing wear and damage, which makes replacement very troublesome. If the wear-resistant roller head proposed in the above scheme is added, the roller head hinders heat transfer, resulting in poor cooling, which seriously affects its service life. Based on this, the existing cantilever roller has an unreasonable cooling channel design, which makes replacement of the wear-resistant bushing difficult, and needs further improvement. Utility Model Content

[0004] The utility model aims to provide a cantilever roller for a heating furnace to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cantilever roller for a heating furnace, comprising a rotating shaft seat, a rotating shaft and a wear-resistant sleeve, wherein the rotating shaft is rotatably connected to the rotating shaft seat, the wear-resistant sleeve is detachably fixedly installed on the end of the rotating shaft, the wear-resistant sleeve comprises an inner sleeve and a wear-resistant liner, a plurality of wear-resistant liner plates are arranged in a ring-shaped array on the surrounding surface of the inner sleeve, and the wear-resistant liner plates are fixedly connected to the inner sleeve by a first bolt, the inner sleeve is sleeved on the end of the rotating shaft, and the inner sleeve is fixed to the rotating shaft by a second bolt;

[0006] A cooling channel is provided inside the wear-resistant lining, and a cooling input channel and a cooling output channel are provided inside the rotating shaft. Ports of the cooling input channel and the cooling output channel are respectively connected to two ends of the cooling channel. The wear-resistant lining can be removed separately, and the coolant can flow through the cooling channel to accelerate the cooling of the wear-resistant lining, thereby achieving the effect of replaceable wear-resistant lining and compatibility with built-in cooling channel.

[0007] In some embodiments, the inner sleeve includes a sleeve body, and a first flange and a second flange are respectively fixedly installed at both ends of the sleeve body, and a plurality of docking joints are respectively threadedly installed on the end faces of the first flange and the second flange. One end of the docking joint is a hexagonal cap, and the other end of the docking joint is a conical nozzle. The conical nozzle of the docking joint can be inserted into the port of the cooling channel. A plurality of connecting holes are opened on the surface of the docking joint, and the docking joint is detachable, so as to facilitate the dredging and unblocking of the cooling channel.

[0008] In some embodiments, the cross section of the sleeve is a square structure, and there are four wear-resistant liners, which are fixed around the sleeve to form a cylinder, and the wear-resistant liners can be removed and replaced individually.

[0009] In some embodiments, a plurality of first holes arranged radially are opened inside the first flange, the plurality of first holes correspond one-to-one to each docking joint installed on the first flange, and the cooling input channel is connected to the connecting hole of the docking joint through the first holes.

[0010] A plurality of second channels arranged radially are provided inside the second flange, and the plurality of second channels correspond one-to-one to the respective butt joints installed on the second flange. The cooling output channel is connected to the connecting hole of the butt joint through the second channels. The cooling input channel, the cooling output channel and the cooling channel in the wear-resistant lining form a circulation channel, thereby improving the cooling speed of the wear-resistant lining, reducing high-temperature damage and extending its service life.

[0011] In some embodiments, a first annular groove and a second annular groove are provided on the surface of the rotating shaft, an end of the cooling input channel away from the first channel is connected to the first annular groove, and an end of the cooling output channel away from the second channel is connected to the second annular groove. There are two rotating shaft seats, and delivery connectors are threadedly installed on the upper sides of the two rotating shaft seats. The two delivery connectors are respectively connected to the first annular groove and the second annular groove, so as to facilitate the injection of coolant into the cooling input channel and the reflux and discharge of the coolant through the cooling output channel.

[0012] Beneficial Effects

[0013] The utility model provides a cantilever roller for a heating furnace, which has the following beneficial effects:

[0014] 1. The cantilever roller for the heating furnace is provided with a wear-resistant sleeve on the surface of the rotating shaft, and the wear-resistant lining in the wear-resistant sleeve is fixedly installed on the surface of the inner sleeve, so that the wear-resistant lining can be removed separately for replacement, and a cooling channel is provided inside the wear-resistant lining, so that the coolant can flow through the cooling channel to accelerate the cooling of the wear-resistant lining, so as to achieve the effect that the wear-resistant lining can be replaced and is compatible with the built-in cooling channel, and the use is more convenient.

[0015] 2. The cantilever roller for the heating furnace is provided with a cooling input channel and a cooling output channel inside the rotating shaft. The cooling input channel, the cooling output channel and the cooling channel inside the wear-resistant lining plate form a circulation channel, thereby improving the cooling speed of the wear-resistant lining plate, reducing high-temperature damage and extending its service life. The butt joint is provided to communicate with the mouth of the cooling channel, and the butt joint is detachable, so as to facilitate the unblocking and clearing of the cooling channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating shaft and the wear-resistant bushing;

[0018] Figure 3 for Figure 1 A schematic diagram of a local enlarged structure;

[0019] Figure 4 It is a schematic diagram of the cross-section structure of the butt joint.

[0020] In the figure: 1 rotating shaft seat, 2 rotating shaft, 3 inner sleeve, 4 wear-resistant lining, 5 first bolt, 6 second bolt, 7 cooling channel, 8 cooling input channel, 9 cooling output channel, 10 sleeve body, 11 first flange, 12 second flange, 13 butt joint, 14 connecting hole, 15 first channel, 16 second channel, 17 first annular groove, 18 second annular groove, 19 conveying joint. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model provides a technical solution: a cantilever roller for a heating furnace, comprising a rotating shaft seat 1, a rotating shaft 2 and a wear-resistant sleeve, the rotating shaft 2 is rotatably connected to the rotating shaft seat 1, the wear-resistant sleeve is detachably fixedly installed on the end of the rotating shaft 2, the wear-resistant sleeve comprises an inner sleeve 3 and a wear-resistant lining plate 4, a plurality of wear-resistant lining plates 4 are arranged in a ring array on the surrounding surface of the inner sleeve 3, and the wear-resistant lining plate 4 is fixedly connected to the inner sleeve 3 by a first bolt 5, the inner sleeve 3 is sleeved on the end of the rotating shaft 2, and the inner sleeve 3 is fixed to the rotating shaft 2 by a second bolt 6.

[0023] Specifically, the inner sleeve 3 includes a sleeve body 10, and a first flange 11 and a second flange 12 are fixedly mounted on both ends of the sleeve body 10, and a plurality of butt joints 13 are threadedly mounted on the end surfaces of the first flange 11 and the second flange 12.

[0024] A cooling channel 7 is provided inside the wear-resistant lining 4, one end of the butt joint 13 is a hexagonal cap, and the other end of the butt joint 13 is a conical mouth, which can be inserted into the port of the cooling channel 7, and a plurality of connecting holes 14 are provided on the surface of the butt joint 13.

[0025] A cooling input channel 8 and a cooling output channel 9 are provided inside the rotating shaft 2, and a plurality of first channels 15 arranged radially are provided inside the first flange 11. The plurality of first channels 15 correspond one-to-one to the respective docking joints 13 installed on the first flange 11, and the cooling input channel 8 is connected to the connecting hole 14 of the docking joint 13 through the first channels 15.

[0026] The second flange 12 has a plurality of radially arranged second channels 16 formed inside, the plurality of second channels 16 corresponding one-to-one to the respective butt joints 13 installed on the second flange 12 , and the cooling output channel 9 is connected to the connecting hole 14 of the butt joint 13 through the second channels 16 .

[0027] like Figure 1 As shown, the ports of the cooling input channel 8 and the cooling output channel 9 are respectively connected to the two ends of the cooling channel 7, and are connected to the mouth of the cooling channel 7 by setting a butt joint 13. The butt joint 13 is detachable, so as to facilitate the unblocking and clearing of the cooling channel 7.

[0028] In this embodiment, the cross section of the casing 10 is a square structure, and there are four wear-resistant lining plates 4. The four wear-resistant lining plates 4 are fixed around the casing 10 to form a cylinder.

[0029] A first annular groove 17 and a second annular groove 18 are provided on the surface of the rotating shaft 2, an end of the cooling input channel 8 away from the first channel 15 is connected to the first annular groove 17, an end of the cooling output channel 9 away from the second channel 16 is connected to the second annular groove 18, there are two rotating shaft seats 1, and a conveying joint 19 is threadedly installed on the upper side of the two rotating shaft seats 1, and the two conveying joints 19 are respectively connected to the first annular groove 17 and the second annular groove 18.

[0030] Working principle: The coolant is input into the cooling input channel 8 through the delivery joint 19, and enters the first channel 15, the butt joint 13, the cooling channel 7, the butt joint 13, the second channel 16, the cooling output channel 9 in sequence, and is finally output from another delivery joint 19. By arranging the cooling input channel 8 and the cooling output channel 9 inside the rotating shaft 2, the cooling input channel 8, the cooling output channel 9 and the cooling channel 7 in the wear-resistant lining 4 form a circulation channel, which improves the cooling speed of the wear-resistant lining 4, reduces high-temperature damage, and extends its service life.

[0031] The cantilever roller for the heating furnace is provided with a wear-resistant sleeve on the surface of the rotating shaft 2, and the wear-resistant lining plate 4 in the wear-resistant sleeve is fixedly installed on the surface of the inner sleeve 3, so that the wear-resistant lining plate 4 can be removed separately for replacement, and a cooling channel 7 is provided inside the wear-resistant lining plate 4, so that the coolant can flow through the cooling channel 7 to accelerate the cooling of the wear-resistant lining plate 4, so as to achieve the effect that the wear-resistant lining plate 4 is replaceable and compatible with the built-in cooling channel 7, and the use is more convenient.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cantilever roller for a heating furnace, comprising a rotating shaft seat (1), a rotating shaft (2) and a wear-resistant sleeve, characterized in that: The rotating shaft (2) is rotatably connected to the rotating shaft seat (1); the wear-resistant sleeve is detachably fixedly mounted on the end of the rotating shaft (2); the wear-resistant sleeve comprises an inner sleeve (3) and a wear-resistant lining plate (4); a plurality of wear-resistant lining plates (4) are arranged in a ring-shaped array on the surrounding surface of the inner sleeve (3); the wear-resistant lining plates (4) are fixedly connected to the inner sleeve (3) by a first bolt (5); the inner sleeve (3) is sleeved on the end of the rotating shaft (2); and the inner sleeve (3) is fixed to the rotating shaft (2) by a second bolt (6); A cooling channel (7) is provided inside the wear-resistant lining plate (4), and a cooling input channel (8) and a cooling output channel (9) are provided inside the rotating shaft (2). Ports of the cooling input channel (8) and the cooling output channel (9) are respectively connected to two ends of the cooling channel (7).

2. A cantilever roller for a heating furnace according to claim 1, characterized in that: The inner shaft sleeve (3) comprises a sleeve body (10), with a first flange (11) and a second flange (12) respectively fixedly mounted at both ends of the sleeve body (10), and a plurality of butt joints (13) respectively threadedly mounted on the end surfaces of the first flange (11) and the second flange (12).

3. A cantilever roller for a heating furnace according to claim 2, characterized in that: One end of the butt joint (13) is a hexagonal cap, and the other end of the butt joint (13) is a conical nozzle. The conical nozzle of the butt joint (13) can be inserted into the port of the cooling channel (7), and a plurality of connecting holes (14) are provided on the surface of the butt joint (13).

4. A cantilever roller for a heating furnace according to claim 3, characterized in that: The cross section of the sleeve (10) is a square structure. There are four wear-resistant lining plates (4), and the four wear-resistant lining plates (4) are fixed around the sleeve (10) to form a cylinder.

5. A cantilever roller for a heating furnace according to claim 4, characterized in that: The first flange (11) is provided with a plurality of first holes (15) arranged radially therein, the plurality of first holes (15) corresponding one-to-one to the respective butt joints (13) installed on the first flange (11), and the cooling input channel (8) is connected to the connecting hole (14) of the butt joint (13) through the first holes (15).

6. A cantilever roller for a heating furnace according to claim 5, characterized in that: The second flange (12) is provided with a plurality of second holes (16) arranged radially therein, the plurality of second holes (16) corresponding one-to-one to the respective butt joints (13) installed on the second flange (12), and the cooling output channel (9) is connected to the connecting hole (14) of the butt joint (13) through the second holes (16).

7. A cantilever roller for a heating furnace according to claim 6, characterized in that: A first annular groove (17) and a second annular groove (18) are formed on the surface of the rotating shaft (2); an end of the cooling input channel (8) away from the first hole (15) is connected to the first annular groove (17); and an end of the cooling output channel (9) away from the second hole (16) is connected to the second annular groove (18).

8. A cantilever roller for a heating furnace according to claim 7, characterized in that: There are two rotating shaft seats (1), and conveying joints (19) are threadedly mounted on the upper sides of the two rotating shaft seats (1). The two conveying joints (19) are respectively connected to the first annular groove (17) and the second annular groove (18).

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