Carrier roller device of frame type vertical ring rolling machine

Abstract

The utility model relates to the field of forging, in particular to a carrier roller device of a frame type vertical ring rolling machine, which comprises a carrier roller shaft, a shaft front sealing cover and a shaft sleeve are sleeved on the carrier roller shaft, a riding wheel is sleeved on the shaft front sealing cover, a gland is arranged on the end face of the riding wheel, the gland is sleeved on the shaft sleeve, and the shaft sleeve is sleeved on the shaft sleeve. A framework oil seal is arranged between the gland and the shaft sleeve, a mounting cavity is defined by the carrier roller shaft, the shaft front sealing cover, the carrier roller, the gland and the shaft sleeve, and a bearing assembly is arranged in the mounting cavity. The shaft front sealing cover is arranged at the front end of the supporting wheel, and the rear end of the supporting wheel and the shaft sleeve are sealed through the gland, so that a closed mounting cavity is formed between the supporting wheel shaft and the supporting wheel, lubricating oil injected into a bearing cannot be thrown out in the operation process of the bearing and can circularly act on the bearing, environmental pollution is avoided, good operation of the bearing is ensured, and the service life of the bearing is prolonged. The service life of the lubricating oil is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of forging, in particular to a frame-type vertical ring rolling machine roller device. Background Art

[0002] The rollers of the frame-type vertical ring rolling machine need to carry the core roller to complete the rolling of the ring blank, so the rollers need to have strong stress resistance, especially radial stress. The traditional roller device includes a roller shaft, on which a supporting wheel is sleeved, and a bearing is provided between the supporting wheel and the roller shaft. During use, the core roller is placed on the supporting wheel. When the core roller rotates, the supporting wheel can rotate accordingly around the roller shaft to reduce the wear of the core roller and the supporting wheel. During the use of the roller device, lubricating oil needs to be added to the bearing to keep the supporting wheel rotating smoothly. However, the lubricating oil injected into the bearing will be thrown out during the bearing rotation, resulting in waste of lubricating oil and pollution of the production environment, while increasing the number of times the lubricating oil needs to be added.

[0003] Therefore, a technical solution is currently needed to solve the technical problem that the lubricating oil added to the bearing between the roller shaft and the supporting wheel is easily thrown out during the operation of the bearing, causing lubricating oil waste and environmental pollution, and also increasing the frequency of lubricating oil filling. Utility Model Content

[0004] The purpose of the utility model is to overcome the technical problems in the prior art of lubricating oil added to the bearing between the roller shaft and the supporting wheel, which is easily thrown out during the operation of the bearing, causing waste of lubricating oil and environmental pollution, and also increasing the frequency of lubricating oil filling, and to provide a frame-type vertical ring rolling machine roller device.

[0005] The utility model provides a frame-type vertical ring rolling machine roller device, comprising a roller shaft, a shaft front sealing cover and a shaft sleeve are sleeved on the roller shaft, a supporting wheel is sleeved on the shaft front sealing cover, a pressure cover is provided on the end face of the supporting wheel, the pressure cover is sleeved on the shaft sleeve, a skeleton oil seal is provided between the pressure cover and the shaft sleeve, the roller shaft, the shaft front sealing cover, the supporting wheel, the pressure cover and the shaft sleeve are enclosed to form an installation cavity, and a bearing assembly is provided in the installation cavity.

[0006] The utility model discloses a frame-type vertical ring rolling machine roller device. A shaft front sealing cover and a shaft sleeve are arranged on the roller shaft. The front end of the tugboat is connected and sealed with the roller through the shaft front sealing cover. At the rear end of the tugboat, a pressure cover is connected between the shaft sleeve and the roller, thereby forming a closed installation cavity between the roller shaft and the roller. The bearing assembly is arranged in the installation cavity. The lubricating oil injected into the bearing will not be thrown out during the operation of the bearing, thereby avoiding environmental pollution. The lubricating oil in the installation cavity can circulate to the bearing, thereby ensuring the good operation of the bearing. At the same time, the pollution problem of the lubricating oil caused by the external environment is avoided, and the service life of the lubricating oil is extended.

[0007] Preferably, the roller shaft is provided with an oil delivery hole, and the oil delivery hole is connected to the mounting cavity.

[0008] An oil delivery hole is set in the roller shaft, and the lubricating oil is accurately added to the bearing in the installation cavity through the oil delivery hole, which makes the lubricating oil filling operation simpler and also ensures that the lubricating oil reaches the bearing position accurately.

[0009] Preferably, the oil delivery hole includes an oil inlet section and an oil outlet section, the oil inlet section is arranged along the length direction of the roller shaft and passes through one end of the roller shaft, the oil outlet section connects the oil inlet section and the mounting cavity, and the oil outlet section is arranged along the diameter direction of the roller shaft.

[0010] The lubricating oil enters the oil inlet section through the end of the roller shaft, then enters the oil outlet section, and finally enters the installation cavity through the oil outlet section, thereby realizing the filling of the bearing lubricating oil. The oil inlet section is arranged along the length direction of the roller shaft, and the oil outlet section is arranged along the radial direction of the roller shaft, which makes the processing technology of the oil delivery hole simpler.

[0011] Preferably, the bearing assembly includes two bearings, and the two bearings are respectively sleeved on the roller shaft.

[0012] The two bearings can share the load of the roller and reduce the failure rate of the bearings. At the same time, when one of the bearings fails, the other bearing can still support the rotation of the roller and reduce the damage to the roller.

[0013] Preferably, at least one of the bearings is a cylindrical roller bearing.

[0014] The cylindrical roller bearing is composed of two rib guides of a bearing ring, a cage, rollers and a guide ring. It will not swing eccentrically when it is loaded by the supporting roller, thus avoiding the problem of the core roller being stuck between the two rollers and causing damage to the roller device or the core roller.

[0015] Preferably, a spacer is provided in the installation cavity, and the two bearings are respectively arranged on both sides of the spacer.

[0016] The spacer can separate the two bearings in the installation cavity to avoid interference between the two bearings during use, thereby increasing the running stability of the two bearings.

[0017] Preferably, an annular step is provided on the outer wall of the roller shaft, and the annular step extends to between the two bearings, and the oil outlet section passes through the side wall of the annular step along the diameter direction of the roller shaft.

[0018] The annular step extends into the installation cavity, and the oil outlet section is arranged in the annular step, so that the oil outlet section can deliver the lubricating oil to between the outer ring and the inner ring of the bearing. Compared with the lubricating oil directly output from the outer wall of the roller shaft, the lubricating oil in this solution can more easily reach the area of ​​the bearing that needs lubrication, ensuring the effective input of the lubricating oil and reducing the waste of the lubricating oil.

[0019] Preferably, an annular groove is provided on the side of the shaft front sealing cover connected to the supporting wheel, and an O-ring is nested in the annular groove.

[0020] During the rotation of the supporting wheel relative to the roller shaft, the supporting wheel contacts the shaft front sealing cover and rotates relative to it. By detachably setting an O-ring on the side of the shaft front sealing cover that contacts the supporting wheel, not only can the sealing performance between the shaft front sealing cover and the supporting wheel be improved, but also the wear of the shaft front sealing cover and the supporting wheel can be prevented. At the same time, the O-ring can be replaced after excessive wear, thereby reducing production costs.

[0021] Preferably, the pressure cover is provided with a plurality of first connecting screw holes, and the plurality of first connecting screw holes are evenly arranged around the roller shaft, and the end face of the roller is provided with a plurality of second connecting screw holes, and the second connecting screw holes are arranged one-to-one corresponding to the first connecting screw holes.

[0022] Each set of corresponding first connecting screw holes and second connecting screw holes are connected by bolts, thereby realizing a detachable connection between the pressure cover and the supporting wheel, and facilitating the installation of the internal components of the supporting wheel and subsequent maintenance.

[0023] Preferably, the end surface of the supporting wheel connected to the pressure cover is provided with a keyway, a flat key is provided in the keyway, and the pressure cover is provided with a connecting groove, and the flat key is embedded in the connecting groove.

[0024] By adding a flat key between the supporting wheel and the gland, the rotation between the gland and the supporting wheel can be prevented, and the bolts connecting the gland and the supporting wheel can be prevented from being deformed due to stress, thereby affecting the later disassembly of the gland.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The utility model provides a frame-type vertical ring rolling machine roller device. By arranging a shaft front sealing cover at the front end of the puller, the rear end of the roller is sealed with the shaft sleeve through a pressure cover, thereby forming a closed installation cavity between the roller shaft and the roller. The lubricating oil injected into the bearing will not be thrown out during the operation of the bearing, thereby avoiding environmental pollution.

[0027] 2. The utility model provides a frame-type vertical ring rolling machine roller device, in which the lubricating oil injected into the installation cavity can circulate to the bearing, ensuring the good operation of the bearing;

[0028] 3. The utility model provides a frame-type vertical ring rolling machine roller device, in which the lubricating oil is located in a closed space installation cavity, thereby avoiding the pollution problem of the lubricating oil caused by the external environment and extending the service life of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic end view of a frame-type vertical ring rolling machine of the utility model;

[0030] Figure 2 yes Figure 1 Middle AA section view;

[0031] Figure 3 This is a schematic structural diagram of the roller shaft of the utility model;

[0032] Figure 4 yes Figure 2 Enlarged view of area B in the middle;

[0033] Figure 5 yes Figure 2 Enlarged view of area C in the middle;

[0034] Markings in the figure:

[0035] 1- roller shaft, 11- oil delivery hole, 111- oil inlet section, 112- oil outlet section, 12- annular step, 2- shaft front sealing cover, 21- annular groove, 3- shaft sleeve, 4- supporting wheel, 41- second connecting screw hole, 42- keyway, 5- pressure cover, 51- first connecting screw hole, 6- skeleton oil seal, 7- bearing assembly, 71- bearing, 8- spacer, 9- O-ring, 10- bolt. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0037] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships such as "upper," "lower," "left," "right," "center," "inside," and "outside" are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is placed when it is conventionally used. These terms of orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians, and do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, they should not be understood as limitations on the present invention.

[0038] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0039] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0040] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0041] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0042] Example 1

[0043] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a frame-type vertical ring rolling machine roller device includes a roller shaft 1, a shaft front sealing cover 2 and a shaft sleeve 3 are sleeved on the roller shaft 1, a supporting wheel 4 is sleeved on the shaft front sealing cover 2, a pressure cover 5 is provided on the end face of the supporting wheel 4, the pressure cover 5 is sleeved on the shaft sleeve 3, a skeleton oil seal 6 is provided between the pressure cover 5 and the shaft sleeve 3, the roller shaft 1, the shaft front sealing cover 2, the supporting wheel 4, the pressure cover 5 and the shaft sleeve 3 are enclosed to form a mounting cavity, a bearing assembly 7 is provided in the mounting cavity, and an oil delivery hole 11 is provided on the roller shaft 1, and lubricating oil can be delivered to the mounting cavity through the oil delivery hole 11.

[0044] By arranging a front shaft sealing cover 2 and a shaft sleeve 3 on the roller shaft 1, the front end of the tugboat 4 is connected and sealed with the supporting roller 4 through the front shaft sealing cover 2, and a pressure cover is connected between the shaft sleeve 3 and the supporting roller 4 at the rear end of the tugboat 4, thereby forming a closed installation cavity between the roller shaft 1 and the supporting roller 4, and the bearing assembly 7 is arranged in the installation cavity. The lubricating oil injected into the bearing will not be thrown out during the operation of the bearing, thereby avoiding environmental pollution. The lubricating oil in the installation cavity can circulate to the bearing, thereby ensuring the good operation of the bearing, while also avoiding the pollution problem of the lubricating oil caused by the external environment, thereby extending the service life of the lubricating oil.

[0045] Oil delivery hole 11: The oil delivery hole 11 includes an oil inlet section 111 and an oil outlet section 112. The oil inlet section 111 is arranged along the length direction of the roller shaft 1 and passes through one end of the roller shaft 1. The oil outlet section 112 connects the oil inlet section 111 and the mounting cavity. The oil outlet section 112 is arranged along the diameter direction of the roller shaft 1. The lubricating oil enters the oil inlet section 111 through the end of the roller shaft 1, and then enters the oil outlet section 112, and finally enters the mounting cavity through the oil outlet section 112, thereby realizing the filling of the bearing lubricating oil. In addition, the oil inlet section 111 is arranged along the length direction of the roller shaft 1, and the oil outlet section 112 is arranged along the radial direction of the roller shaft 1, which makes the processing technology of the oil delivery hole 11 simpler.

[0046] Bearing assembly 7: The bearing assembly 7 includes two bearings 71, and the two bearings 7 are respectively mounted on the roller shaft 1. The two bearings 71 can share the load of the roller 4, reducing the failure rate of the bearings 71. At the same time, when one of the bearings 71 fails, the other bearing 71 can still support the rotation of the roller 4, which can reduce the damage to the roller device; further, at least one of the bearings 71 is a cylindrical roller bearing, which is guided by two ribs of a bearing ring, a retaining frame, a roller and a guide ring. It will not swing eccentrically when it is loaded by the roller, thereby avoiding the core roller being stuck between the two roller devices, which may cause damage to the roller device or the core roller.

[0047] Front shaft sealing cover 2: An annular groove 21 is provided on the side of the front shaft sealing cover 2 connected to the supporting roller 4, and an O-ring 9 is nested in the annular groove 21. During the rotation of the supporting roller 4 relative to the roller shaft 1, the supporting roller 4 contacts and rotates relative to the front shaft sealing cover 2. By detachably providing the O-ring 9 on the side of the front shaft sealing cover 2 that contacts the supporting roller 4, not only can the sealing performance between the front shaft sealing cover 2 and the supporting roller 4 be improved, but also the wear of the front shaft sealing cover 2 and the supporting roller 4 can be prevented. At the same time, the O-ring 9 can be replaced after excessive wear, thereby reducing production costs.

[0048] Pressure cover 5: The pressure cover 5 is provided with a plurality of first connecting screw holes 51, and the plurality of first connecting screw holes 51 are evenly arranged around the roller shaft 1. The end face of the supporting roller 4 is provided with a plurality of second connecting screw holes 41, and the second connecting screw holes 41 are arranged in a one-to-one correspondence with the first connecting screw holes 51. Each group of corresponding first connecting screw holes 51 and second connecting screw holes 41 are connected by bolts 10, thereby realizing a detachable connection between the pressure cover 5 and the supporting roller 4, and facilitating the installation of the internal components of the supporting roller 4 and subsequent maintenance.

[0049] Example 2

[0050] like Figure 1 and Figure 2 As shown, the difference between this embodiment and embodiment 1 is that a spacer ring 8 is provided in the installation cavity, and the two bearings 71 are respectively arranged on both sides of the spacer ring 8.

[0051] In this embodiment, the spacer 8 can separate the two bearings 71 in the installation cavity to avoid interference between the two bearings 71 during use, thereby increasing the running stability of the two bearings 71.

[0052] Example 3

[0053] like Figure 1 、 Figure 2 and Figure 3 As shown, in this embodiment, an annular step 12 is provided on the outer wall of the roller shaft 1 , and the annular step 12 extends between the two bearings 71 , and the oil outlet section 112 passes through the side wall of the annular step 12 along the diameter direction of the roller shaft 1 .

[0054] In this embodiment, the annular step 12 extends into the installation cavity, and the oil outlet section 112 is arranged in the annular step 12, so that the oil outlet section 112 can deliver the lubricating oil to between the outer ring and the inner ring of the bearing 71. Compared with the lubricating oil directly output from the outer wall of the roller shaft 1, the lubricating oil in this solution can more easily reach the area of ​​the bearing 71 that needs lubrication, ensuring the effective input of the lubricating oil and reducing the waste of the lubricating oil.

[0055] Example 4

[0056] like Figure 1 、 Figure 2 and Figure 5 As shown, in this embodiment, the difference from embodiment 1 is that a keyway 42 is provided on the end face of the supporting wheel 4 connected to the pressure cover 5, a flat key is provided in the keyway 2, and the pressure cover 5 is provided with a connecting groove, and the flat key is embedded in the connecting groove.

[0057] In this embodiment, by adding a flat key between the support roller 4 and the pressure cover 5, the rotation between the pressure cover 5 and the support roller 4 can be resisted, and the bolts 10 connecting the pressure cover 5 and the support roller 4 can be prevented from being deformed due to stress, thereby affecting the later disassembly of the pressure cover.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A frame type vertical ring rolling machine roller device, characterized in that: The invention comprises a roller shaft (1), wherein a shaft front sealing cover (2) and a shaft sleeve (3) are sleeved on the roller shaft (1), a supporting wheel (4) is sleeved on the shaft front sealing cover (2), a pressure cover (5) is provided on the end face of the supporting wheel (4), the pressure cover (5) is sleeved on the shaft sleeve (3), a skeleton oil seal (6) is provided between the pressure cover (5) and the shaft sleeve (3), and the roller shaft (1), the shaft front sealing cover (2), the supporting wheel (4), the pressure cover (5) and the shaft sleeve (3) enclose a mounting cavity, and a bearing assembly (7) is provided in the mounting cavity.

2. A frame type vertical ring rolling machine roller device according to claim 1, characterized in that: The roller shaft (1) is provided with an oil delivery hole (11), and the oil delivery hole (11) is connected to the installation cavity.

3. A frame type vertical ring rolling machine roller device according to claim 2, characterized in that: The oil delivery hole (11) comprises an oil inlet section (111) and an oil outlet section (112); the oil inlet section (111) is arranged along the length direction of the roller shaft (1) and passes through one end of the roller shaft (1); the oil outlet section (112) communicates with the oil inlet section (111) and the mounting cavity; the oil outlet section (112) is arranged along the diameter direction of the roller shaft (1).

4. The frame type vertical ring rolling machine roller device according to claim 1, characterized in that: The bearing assembly (7) comprises two bearings (71), and the two bearings (71) are respectively sleeved on the roller shaft (1).

5. The frame type vertical ring rolling machine roller device according to claim 4, characterized in that: At least one of the bearings (71) is a cylindrical roller bearing.

6. The frame type vertical ring rolling machine roller device according to claim 4, characterized in that: A spacer ring (8) is provided in the installation cavity, and the two bearings (71) are respectively arranged on both sides of the spacer ring (8).

7. A frame type vertical ring rolling machine roller device according to claim 6, characterized in that: An annular step (12) is provided on the outer wall of the roller shaft (1), and the annular step (12) extends between the two bearings (71). The oil outlet section (112) passes through the side wall of the annular step (12) along the diameter direction of the roller shaft (1).

8. A frame type vertical ring rolling machine roller device according to any one of claims 1 to 7, characterized in that: An annular groove (21) is provided on one side of the shaft front sealing cover (2) connected to the supporting wheel (4), and an O-type sealing ring (9) is nested in the annular groove (21).

9. A frame type vertical ring rolling machine roller device according to any one of claims 1 to 7, characterized in that: The pressure cover (5) is provided with a plurality of first connecting screw holes (51), and the plurality of first connecting screw holes (51) are evenly arranged around the roller shaft (1). The end surface of the supporting wheel (4) is provided with a plurality of second connecting screw holes (41), and the second connecting screw holes (41) are arranged in a one-to-one correspondence with the first connecting screw holes (51).

10. The frame type vertical ring rolling machine roller device according to claim 9, characterized in that: The end surface of the supporting wheel (4) connected to the gland (5) is provided with a keyway (42), a flat key is provided in the keyway (42), and the gland (5) is provided with a connecting groove, and the flat key is embedded in the connecting groove.

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