Bearing seat connection improvement structure of speed reducer and cantilever roller

Abstract

The utility model relates to a speed reducer and cantilever roller bearing seat connection improvement structure which comprises a connecting frame fixedly connected to a bearing seat, a speed reducer shell is provided with a support and a spacing pad fixedly connected between the support and the connecting frame, and the spacing pad is made of nylon materials. The connecting frame is inverted-L-shaped, the bottom end of the inverted-L-shaped connecting frame is welded with the bearing seat, and the top edge of the inverted-L-shaped connecting frame, the spacing pad and the support are fixed together through a bolt and a nut; a cotter pin for preventing the nut from loosening is arranged between the bolt and the nut; the support and the speed reducer shell are integrally cast; a second nylon spacing pad is arranged between a nut of the bolt and the bracket; the speed reducer has the beneficial effects that kinetic energy between the speed reducer and the bearing seat can be absorbed through the arranged spacing pad and the second nylon pad spacing pad, and the service life of the speed reducer and the service life of the cantilever roller are prolonged.

Description

Technical Field

[0001] This application relates to the field of steelmaking equipment technology, and in particular to an improved structure for the connection between the bearing housing of a speed reducer and a cantilever roller. Background Technology

[0002] In steel production, such as in continuous hot billet production lines, cantilever rolls are widely used. They primarily bear the crucial responsibility of supporting and guiding the smooth movement of the billets. The rotation of the cantilever roll drives the hot billet conveyor. Existing cantilever roll installation methods (such as...) Figure 5 Yes, one end of the cantilever roller is suspended in the air to receive and transport hot steel billets, and the other end of the cantilever roller is inserted into the output end of the reducer. The reducer and the bearing seat of the cantilever roller are fixedly connected by an L-shaped bracket. The motor output shaft is inserted into the input end of the reducer to provide power, and the motor housing is fixed on the reducer. Due to long-term use, it has been found that the L-shaped bracket at the connection between the reducer and the bearing seat is frequently damaged, which needs to be resolved.

[0003] Among existing patents, CN201921980715.2, entitled "A Cantilever Roller Device," discloses a device including a reducer body. A rear roller is fixed to the lower side of one side of the reducer body. A sealing groove is formed at one end of the rear roller. A front roller is fixed inside the sealing groove by a sealing block. When the front roller needs to be disassembled, the user rotates a locking sleeve clockwise, causing the locking sleeve to engage with the thread and move towards the rear roller. When the locking sleeve moves to a certain extent, the end of the front roller is exposed, and the worker can then pull the sealing block out of the sealing groove, completing the disassembly. During installation, the worker first inserts the sealing block into the sealing groove, and then rotates the locking sleeve counterclockwise, causing the locking sleeve to move towards the front roller, thus enclosing the contact point between the front and rear rollers, completing the installation. This patent does not disclose how the reducer connects to the cantilever roller, which needs to be supplemented.

[0004] There is also a patent with application number CN202021776982.0, entitled "Anti-slip structure for cantilever rollers", which discloses a structure including a roller shaft and a base. A speed reducer body is installed at one end of the base, and the roller shaft passes through the speed reducer body. Two limiting barrels are provided at both ends of the roller shaft near the speed reducer body, and several equidistant rotor slots are provided on the two limiting barrels near the speed reducer body. In this invention, the roller shaft is connected to the limiting barrel by a bolt at the point where it passes through the reducer body. The limiting barrel is fixed on the roller shaft and rotates in the same direction as the roller shaft. The reducer body has a limiting groove two near the bottom of the limiting barrel. When the roller shaft rotates, several equidistant rotors are located near the limiting groove two of the two limiting barrels of the reducer body. The rotors rotate with the roller shaft. The two limiting barrels fixed on the roller shaft can limit the position of the roller shaft and prevent the axial movement of the roller shaft. A support shaft is provided between the limiting groove two and the limiting barrel. The reducer of this application is fixed on a relatively large base. However, due to space limitations, we cannot install a relatively large base at present. At the same time, a relatively large base is also relatively expensive and uneconomical. Utility Model Content

[0005] The purpose of this invention is to provide an improved structure for the connection between the bearing housing of the reducer and the cantilever roller. An energy-absorbing structure is added between the reducer and the bearing housing to replace the original rigid connection, thereby preventing the reducer and the cantilever roller from being damaged due to excessive vibration.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] The input end of the reducer is connected to the output shaft of the motor, the cantilever roller is rotatably connected to the bearing housing, one end of the cantilever roller is connected to the output end of the reducer, and the other end of the cantilever roller is used to receive and convey hot steel billets.

[0008] An improved structure for connecting a speed reducer and a cantilever roller bearing housing includes a connecting frame fixedly connected to the bearing housing, a support on the speed reducer housing, and a spacer fixedly connected between the support and the connecting frame. The spacer is made of nylon material.

[0009] Furthermore, the connecting frame is inverted L-shaped, with the bottom end of the inverted L-shaped connecting frame welded to the bearing seat, and the top edge of the inverted L-shape, the spacer pad, and the support fixed together by bolts and nuts.

[0010] Furthermore, a cotter pin is provided between the bolt and the nut to prevent the nut from loosening.

[0011] Furthermore, a first reinforcing rib and a second reinforcing rib are provided between the connecting frame and the bearing seat.

[0012] Furthermore, the support is integrally cast with the reducer housing.

[0013] Furthermore, a second nylon spacer is provided between the nut of the bolt and the connecting bracket.

[0014] Furthermore, a flat washer is provided between the nut and the second nylon spacer.

[0015] The beneficial effects of this application are:

[0016] This application utilizes spacers to absorb the kinetic energy between the reducer and the bearing housing, thereby extending the service life of the reducer and the cantilever roller.

[0017] By using a second nylon spacer, hard contact between the nut and the connecting bracket can be avoided, thus reducing the vibration of the reducer and making it less prone to damage.

[0018] The reinforcing ribs can be added to increase the connection strength between the connecting frame and the bearing housing, and prevent the connecting frame from deforming under stress. Attached Figure Description

[0019] Figure 1 This is a schematic front view of the structure of this application;

[0020] Figure 2 This is a schematic top view of the structure of this application;

[0021] Figure 3 This is a schematic sectional view of the structure connecting the connecting frame and the support;

[0022] Figure 4 This is a schematic diagram of the cotter pin installation structure;

[0023] Figure 5 This is a schematic diagram of the structure before the improvement.

[0024] The numbers on the map

[0025] 1-Reducer, 2-Motor, 3-Bearing housing, 4-Cantilever roller, 5-Connecting frame, 6-Support;

[0026] 51 - First reinforcing rib, 52 - Second reinforcing rib;

[0027] 61-Spacer pad, 62-Second nylon spacer pad, 63-Flat washer, 64-Bolt, 65-Nut, 66-Small washer, 67-Cotter pin. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] Example 1

[0030] like Figure 1 As shown in Figure 5,

[0031] The input end of the reducer 1 is connected to the output shaft of the motor 2 for transmission. The cantilever roller 4 is rotatably connected to the bearing seat 3. One end of the cantilever roller 4 is connected to the output end of the reducer 1 for transmission. The other end of the cantilever roller 4 is used to receive and convey hot steel billets.

[0032] An improved structure for connecting a speed reducer and a cantilever roller bearing housing includes a connecting frame 5 fixedly connected to the bearing housing 3, a support 6 provided on the housing of the speed reducer 1, and a spacer 61 fixedly connected between the support 6 and the connecting frame 5. The spacer 61 is made of nylon material.

[0033] like Figure 1-2 As shown, the connecting frame 5 is inverted L-shaped. The bottom end of the inverted L-shaped connecting frame is welded to the bearing seat 3. The top edge of the inverted L-shape, the spacer 61, and the support 6 are fixed together by bolts 64 and nuts 65.

[0034] The detailed structure is as follows: bolt 64 passes through connecting frame 5, spacer 61, and support 6 in sequence, and is then tightened with nut 65. Because spacer 61 has a certain degree of elasticity, it can reduce the impact force between reducer 1 and bearing housing 3, and prevent premature damage to reducer 1, cantilever roller 4, connecting frame 5, and bolt 64.

[0035] like Figure 4 As shown, a cotter pin 67 is provided between the bolt 64 and the nut 65 to prevent the nut 65 from loosening. The bolt 64 has a through hole at one end in the radial direction, and the nut 65 has an open groove at one end. After the nut 65 is tightened, the cotter pin 67 is inserted into the open groove and the through hole in sequence, and its open end is pried open along the outer surface of the nut 65 to prevent the nut 65 from loosening.

[0036] The support 6 is integrally cast with the housing of the reducer 1. The integrally cast support 6 is firmly connected and not easily deformed.

[0037] With the spacer pad 61 having a certain degree of elasticity, when the connecting frame 5 receives circumferential torque, part of it is absorbed by the spacer pad 61, which reduces the impact force on the connecting frame 5, reduces vibration, and extends the service life of the reducer 1 and the cantilever roller 4.

[0038] Example 2

[0039] This embodiment has a basically the same structure as Embodiment 1.

[0040] The difference is that,

[0041] like Figure 1-2 As shown,

[0042] A first reinforcing rib 51 and a second reinforcing rib 52 are provided between the connecting frame 5 and the bearing seat 3. This can increase the strength of the connecting frame 5 and prevent the connecting frame 5 from deforming under stress.

[0043] To improve the connection strength between the connecting frame 5 and the bearing housing 3, we also customized a batch of parts that are integrally cast with the connecting frame 5 and the bearing housing 3. These parts were installed on the cantilever roller production line and used for six months without any deformation.

[0044] Example 3

[0045] This embodiment has a basically the same structure as Embodiment 1.

[0046] The difference is that,

[0047] like Figure 2-3 As shown,

[0048] A second nylon spacer 62 is provided between the nut of bolt 64 and the connecting frame 5.

[0049] A flat washer 63 is provided between the nut and the second nylon spacer 62;

[0050] The outer diameter of the rigid flat washer 63 is equal to the outer diameter of the elastic second nylon spacer 62; the pressure of the bolt 64 nut is evenly applied to the end face of the second nylon spacer 62 to prevent the second nylon spacer 62 from being locally deformed due to the small size of the nut.

[0051] Bolt 64 passes through flat washer 63, second nylon spacer 62, connecting bracket 5, spacer 61, support 6, and small washer 66 in sequence, and is then tightened with nut 65.

[0052] The second nylon spacer 62 allows the connecting frame 5 to absorb some of the energy when it is subjected to force, further reducing the impact force on the connecting frame 5 and preventing damage to the reducer 1 and the cantilever roller 4.

[0053] The above description is merely a preferred embodiment of this application; however, the scope of protection of this application is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An improved structure for connecting a reducer and a cantilever roller to a bearing housing, wherein the input end of the reducer (1) is drivenly connected to the output shaft of a motor (2), the cantilever roller (4) is rotatably connected to a bearing housing (3), one end of the cantilever roller (4) is drivenly connected to the output end of the reducer (1), and the other end of the cantilever roller (4) is used to receive and transport hot steel billets; characterized in that: It includes a connecting frame (5) fixedly connected to the bearing housing (3), a support (6) provided on the housing of the reducer (1), and a spacer (61) fixedly connected between the support (6) and the connecting frame (5). The spacer (61) is made of nylon material.

2. The improved structure for connecting the bearing housing of the reducer and the cantilever roller according to claim 1, characterized in that: The connecting frame (5) is inverted L-shaped. The bottom end of the inverted L-shaped connecting frame (5) is welded to the bearing seat (3). The top edge of the inverted L-shape, the spacer (61), and the support (6) are fixed together by bolts (64) and nuts (65).

3. The improved structure for connecting the bearing housing of the reducer and the cantilever roller according to claim 2, characterized in that: A cotter pin (67) is provided between the bolt (64) and the nut (65) to prevent the nut (65) from loosening.

4. The improved structure for connecting the bearing housing of the reducer and the cantilever roller according to claim 3, characterized in that: The connecting frame (5) and the bearing seat (3) are provided with a first reinforcing rib (51) and a second reinforcing rib (52) to increase the rigidity of the connecting frame (5).

5. The improved structure for connecting the bearing housing of the reducer and the cantilever roller according to claim 1, characterized in that: The support (6) and the housing of the reducer (1) are integrally cast.

6. The improved structure for connecting the bearing housing of the reducer and the cantilever roller according to claim 4, characterized in that: A second nylon spacer (62) is provided between the nut of the bolt (64) and the connecting frame (5).

7. An improved structure for connecting the bearing housing of a speed reducer and a cantilever roller according to claim 6, characterized in that: A flat washer (63) is provided between the nut and the second nylon spacer (62).

Images