Driving shaft supporting structure of vertical ring rolling mill

Abstract

The utility model discloses a driving shaft supporting structure of a vertical ring rolling mill. According to the device, an overall moving frame is in an inverted L shape, a first supporting structure is arranged at the bottom of the middle position of the overall moving frame, a supporting frame is vertically arranged at the bottom of the right side of the overall moving frame, and a second supporting structure is arranged at the bottom of the supporting frame; the third supporting structure is arranged at the left bottom of the integral moving frame; the first supporting structure comprises a first bearing mounting cylinder and a first rolling bearing, and the main body part of the driving shaft penetrates through the first rolling bearing; the second supporting structure comprises a second bearing mounting cylinder and a second rolling bearing, and the tail end of the driving shaft penetrates through the second rolling bearing; the third supporting structure comprises a third bearing mounting cylinder and a third rolling bearing, and the head end of the driving shaft penetrates through the third rolling bearing; and the centers of the first supporting structure and the second supporting structure are collinear. The horizontal state of the driving shaft in the working process can be kept, the problem that the outer wall of a formed ring piece is inclined is solved, and the forming quality of the ring piece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ring rolling machines, in particular to a driving shaft supporting structure of a vertical ring rolling machine. Background Art

[0002] Ring rolling machine is a kind of rotary forging equipment. According to the structural characteristics of ring rolling equipment, it can be divided into two categories: vertical ring rolling machine and horizontal ring rolling machine. Among them, vertical ring rolling machine is suitable for medium and small rings, and is widely used in the plastic forming of rings such as inner and outer rings of bearings, wheel rims, railway wheel hoops, steam turbines, aircraft engines, aerospace equipment, etc. The vertical ring rolling machine is a core roller driven by an electric motor to rotate. In the process of downward pressure on the main shaft, it forms a pair of rollers with the core roller, and the ring blank on the core roller is repeatedly rolled. The inner and outer diameters of the ring are expanded, and the wall thickness is reduced, and the ring is gradually formed.

[0003] In the existing technical solution, the frame of the vertical ring rolling machine only supports the driving shaft through a front-end support. The driving shaft is a cantilever beam. When rolling the ring, the ring is sleeved on the core shaft, and the rotating driving shaft moves downward under the drive of the oil cylinder. After contacting the ring, the ring is gradually deformed. However, the driving shaft is relatively long. During the process of the driving shaft rolling the ring, it only relies on a front-end support, and the driving shaft is easy to tilt upward. The outer wall of the formed ring will also be tilted. Such rings are of poor quality and cannot be used.

[0004] For example, in the auxiliary cylinder device of a vertical ring rolling machine with the authorization announcement number CN 212717451 U, the main cylinder directly acts on the frame of the driving shaft, and the auxiliary cylinder acts on the end of the driving shaft. In this scheme, during the process of the driving shaft rolling the ring, since the overall weight of the auxiliary cylinder is added to the tail end of the connecting plate, the auxiliary cylinder also moves downward synchronously while the main cylinder drives the driving shaft downward. While the main cylinder applies the driving force, the auxiliary cylinder needs to apply the downward supporting force. The main cylinder and the auxiliary cylinder need to be used in coordination. If the coordination is not good, it will affect the horizontal state of the driving shaft. The structure is relatively complex, and the coordination requirements for the main cylinder and the auxiliary cylinder are strict, and the operation is cumbersome.

[0005] In order to solve the above technical problems, the utility model proposes a driving shaft support structure of a vertical ring rolling machine. Summary of the invention

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and propose a driving shaft support structure for a vertical ring rolling machine, which can keep the driving shaft in a horizontal state during operation, avoid the problem of outer wall inclination of the formed ring, ensure the forming quality of the ring, and has a simple structure and easy operation.

[0007] In order to achieve the above objectives, the utility model proposes the following technical solutions:

[0008] A driving shaft support structure of a vertical ring rolling machine, comprising an integral moving frame, a driving shaft, a first support structure, a support frame, a second support structure and a third support structure;

[0009] The top of the integral moving frame is connected to the active oil cylinder. Driven by the active oil cylinder, the integral moving frame moves downward, and the active shaft rolls the ring.

[0010] The integral mobile frame is in the shape of a “┌”, the first supporting structure is arranged at the bottom of the middle position of the integral mobile frame, the supporting frame is vertically arranged at the bottom of the right side of the integral mobile frame, the second supporting structure is arranged at the bottom of the supporting frame; the third supporting structure is arranged at the bottom of the left side of the integral mobile frame;

[0011] The first supporting structure comprises a first bearing mounting cylinder and a first rolling bearing arranged in the first bearing mounting cylinder, the main part of the driving shaft passes through the first rolling bearing, and the first supporting structure provides supporting force for the main part of the driving shaft;

[0012] The second support structure includes a second bearing mounting cylinder and a second rolling bearing arranged in the second bearing mounting cylinder, and the end of the driving shaft passes through the second rolling bearing; the second support structure provides support force to the end of the driving shaft, thereby promoting the driving shaft to maintain balance during operation, thereby ensuring the forming quality of the ring;

[0013] The third supporting structure comprises a third bearing mounting cylinder and a third rolling bearing arranged in the third bearing mounting cylinder, the head end of the driving shaft passes through the third rolling bearing, and the third supporting structure provides supporting force for the head end of the driving shaft;

[0014] The centers of the first supporting structure, the second supporting structure and the third supporting structure remain collinear.

[0015] The driving shaft is provided with a plurality of shaft shoulders, which cooperate with the first support structure, the second support structure, and the third support structure to limit the driving shaft in the horizontal direction, so that the driving shaft will not move in the horizontal direction. For the horizontal position limit of the driving shaft, other structures that can achieve the limit effect are also possible, which is already known in the prior art and is known to those skilled in the art.

[0016] Preferably, the upper surface of the integral movable frame is provided with reinforcing ribs.

[0017] Preferably, the support frame and the integral movable frame are connected via bolts and nuts to achieve a detachable connection.

[0018] Preferably, grooves are symmetrically provided on both sides of the front and rear of the position where the integral movable frame is connected to the support frame, in an I-shape or ⊥-shape, and include a vertical plate and a connecting horizontal plate at the bottom of the vertical plate.

[0019] Preferably, an inverted T-shaped slot is provided on the top of the support frame, and the vertical plate and the connecting horizontal plate are inserted into the inverted T-shaped slot. The overall movable frame and the support frame are fixed in the vertical direction by vertical screws and in the horizontal direction by horizontal screws, thereby achieving fixation of the overall movable frame and the support frame in two directions to ensure that the support frame remains in a vertical state and that the driving shaft remains in a horizontal state.

[0020] During the specific installation, the support frame moves horizontally and gradually approaches the end of the overall movable frame, so that the vertical plate and the connecting horizontal plate are inserted into the inverted T-shaped slot, and then the vertical screws and horizontal screws are installed to achieve the connection between the support frame and the overall movable frame and keep the support frame in a vertical state; then the support frame is connected to the second support structure.

[0021] Preferably, the support frame includes a first half support frame and a second half support frame, the first half support frame and the second half support frame have the same structure and are arranged opposite to each other; the second bearing mounting cylinder includes two half bearing mounting cylinders, namely a first half bearing mounting cylinder and a second half bearing mounting cylinder; the first half support frame and the first half bearing mounting cylinder are an integrated structure, and the second half support frame and the second half bearing mounting cylinder are an integrated structure;

[0022] The first half support frame is in a “┌” shape, comprising a horizontal connecting plate and a vertical support plate, and the vertical support plates of the first half support frame and the second half support frame are laterally fixed by bolts and nuts;

[0023] A vertical bearing mounting cylinder connecting plate is provided at the bottom of the first half bearing mounting cylinder and the second half bearing mounting cylinder, and the two bearing mounting cylinder connecting plates are transversely fixed by bolts and nuts;

[0024] The horizontal connecting plate is provided with a horizontal groove; the two horizontal connecting plates are combined to form a ⊥-shaped installation groove, the vertical plate and the connecting horizontal plate at the end of the integral moving frame can be inserted into the installation groove, and the connecting horizontal plate and the horizontal connecting plate are vertically fixed by bolts and nuts.

[0025] During the specific installation, the first half support frame and the second half support frame are first separated, and the second rolling bearing is sleeved on the end of the driving shaft;

[0026] The first half support frame is then clamped in the horizontal groove of the connecting cross plate, and the first half bearing mounting cylinder is aligned with the second rolling bearing. As the first half support frame is pushed inward, the first half bearing mounting cylinder is adjacent to the second rolling bearing. At this time, the second rolling bearing and the first half bearing mounting cylinder are first installed together, and then the horizontal groove of the second half support frame is clamped on the other side of the connecting cross plate. As the second half support frame is pushed inward, the two vertical support plates are gradually approached, and the second half bearing mounting cylinder is adjacent to the second rolling bearing. Finally, the first half support frame and the second half support frame are combined, and the second half bearing mounting cylinder and the first half bearing mounting cylinder are combined to form a complete second bearing mounting cylinder, and the end of the active shaft with the second rolling bearing is placed in the second bearing mounting cylinder. At this time, the nut used to connect the first half support frame and the second half support frame is tightened, and the nut used to connect the first half bearing mounting cylinder and the second half bearing mounting cylinder is tightened; finally, the horizontal connecting plate and the connecting cross plate are connected by bolts and nuts, thereby completing the detachable and stable connection between the support frame and the overall movable frame.

[0027] When disassembly and maintenance are required, the support frame can be separated from the overall movable frame by loosening the nuts connecting the first half support frame and the second half support frame, the nuts connecting the first half bearing mounting cylinder and the second half bearing mounting cylinder, and the nuts connecting the horizontal connecting plate and the connecting cross plate.

[0028] Specifically, the active oil cylinder applies a pulling force or a pushing force to the integral movable frame, and the integral movable frame drives the active shaft to move up and down. During the up and down movement of the active shaft, the active shaft always maintains a horizontal state under the support of the first supporting structure, the second supporting structure and the third supporting structure. When the active shaft applies a rolling force to the formed ring, it also maintains a horizontal state.

[0029] The beneficial effects of the utility model are:

[0030] The utility model provides an integral movable frame in the shape of "┌", under which a first supporting structure, a second supporting structure and a third supporting structure are provided, so that the driving shaft always maintains a horizontal state, avoids the problem of outer wall inclination of the formed ring, and ensures the forming quality of the ring.

[0031] The utility model further ensures the horizontal state of the driving shaft by arranging the connection structure between the supporting frame and the integral moving frame, and at the same time, the installation and disassembly are simple and convenient for operation.

[0032] By adopting the above scheme, the utility model can keep the driving shaft in a horizontal state during operation, avoid the problem of outer wall tilt of the formed ring, ensure the forming quality of the ring, and has a simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 It is a front structural diagram of the first embodiment.

[0035] Figure 2 It is a schematic structural diagram of the connection portion between the integral moving frame and the supporting frame in the second embodiment.

[0036] Figure 3 It is a schematic structural diagram of the connection portion between the integral moving frame and the supporting frame in the third embodiment.

[0037] Figure 4 It is a cross-sectional view of the connection portion between the integral moving frame and the supporting frame in the third embodiment.

[0038] In the figure, 1-first supporting structure, 2-driving shaft, 3-second supporting structure, 4-support frame, 5-integral movable frame, 6-vertical screw, 7-horizontal screw, 8-connection between active oil cylinder and integral movable frame, 9-third supporting structure, 31-second bearing mounting cylinder, 32-second rolling bearing, 311-first half bearing mounting cylinder, 312-second half bearing mounting cylinder, 313-bearing mounting cylinder connecting plate, 41-first half supporting frame, 42-second half supporting frame, 411-horizontal connecting plate, 412-vertical supporting plate, 51-vertical plate, 52-connecting horizontal plate. Implementation

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] First embodiment:

[0044] like Figure 1 As shown, a driving shaft support structure of a vertical ring rolling machine includes an integral moving frame 5, a driving shaft, a first support structure 1, a support frame 4, a second support structure 3 and a third support structure 9;

[0045] The top of the integral moving frame 5 is connected to the active oil cylinder. Driven by the active oil cylinder, the integral moving frame 5 moves downward, and the active shaft 2 rolls the ring.

[0046] The integral mobile frame 5 is in the shape of a “┌”, the first supporting structure 1 is arranged at the bottom of the middle position of the integral mobile frame 5, the supporting frame 4 is vertically arranged at the bottom of the right side of the integral mobile frame 5, the second supporting structure 3 is arranged at the bottom of the supporting frame 4; the third supporting structure 9 is arranged at the bottom of the left side of the integral mobile frame 5;

[0047] The first support structure 1 includes a first bearing mounting cylinder and a first rolling bearing arranged in the first bearing mounting cylinder, the driving shaft 2 partially passes through the first rolling bearing, and the first support structure 1 provides support force for the main part of the driving shaft 2;

[0048] The second support structure 3 includes a second bearing mounting cylinder 31 and a second rolling bearing 32 arranged in the second bearing mounting cylinder. The end of the driving shaft 2 passes through the second rolling bearing 32. The second support structure 3 provides a supporting force to the end of the driving shaft 2, thereby promoting the driving shaft 2 to maintain balance during operation, thereby ensuring the forming quality of the ring.

[0049] The third supporting structure 9 includes a third bearing mounting cylinder and a third rolling bearing arranged in the third bearing mounting cylinder. The first end of the driving shaft 2 passes through the third rolling bearing. The third supporting structure 9 provides supporting force for the first end of the driving shaft 2.

[0050] The centers of the first supporting structure 1 , the second supporting structure 3 and the third supporting structure 9 remain collinear.

[0051] Second embodiment:

[0052] like Figure 1 As shown, a driving shaft support structure of a vertical ring rolling machine includes an integral moving frame 5, a driving shaft, a first support structure 1, a support frame 4, a second support structure 3 and a third support structure 9;

[0053] The top of the integral moving frame 5 is connected to the active oil cylinder. Driven by the active oil cylinder, the integral moving frame 5 moves downward, and the active shaft 2 rolls the ring.

[0054] The integral mobile frame 5 is in the shape of a “┌”, the first supporting structure 1 is arranged at the bottom of the middle position of the integral mobile frame 5, the supporting frame 4 is vertically arranged at the bottom of the right side of the integral mobile frame 5, the second supporting structure 3 is arranged at the bottom of the supporting frame 4; the third supporting structure 9 is arranged at the bottom of the left side of the integral mobile frame 5;

[0055] The first support structure 1 includes a first bearing mounting cylinder and a first rolling bearing arranged in the first bearing mounting cylinder, the driving shaft 2 partially passes through the first rolling bearing, and the first support structure 1 provides support force for the main part of the driving shaft 2;

[0056] The second support structure 3 includes a second bearing mounting cylinder 31 and a second rolling bearing 32 arranged in the second bearing mounting cylinder. The end of the driving shaft 2 passes through the second rolling bearing 32. The second support structure 3 provides a supporting force to the end of the driving shaft 2, thereby promoting the driving shaft 2 to maintain balance during operation, thereby ensuring the forming quality of the ring.

[0057] The third supporting structure 9 includes a third bearing mounting cylinder and a third rolling bearing arranged in the third bearing mounting cylinder. The first end of the driving shaft 2 passes through the third rolling bearing. The third supporting structure 9 provides supporting force for the first end of the driving shaft 2.

[0058] The centers of the first supporting structure 1 , the second supporting structure 3 and the third supporting structure 9 remain collinear.

[0059] like Figure 2 As shown, grooves are symmetrically arranged on the front and rear sides of the position where the integral moving frame 5 is connected to the supporting frame 4 , forming an I-shape or ⊥-shape, and include a vertical plate 51 and a connecting horizontal plate 52 at the bottom of the vertical plate 51 .

[0060] like Figure 2As shown, the top of the support frame 4 is provided with an inverted T-shaped slot, and the vertical plate 51 and the connecting horizontal plate 52 are inserted into the inverted T-shaped slot. The overall movable frame 5 and the support frame 4 are fixed in the vertical direction by vertical screws 6 and in the horizontal direction by horizontal screws 7, thereby realizing the fixation of the overall movable frame 5 and the support frame 4 in two directions to ensure that the support frame 4 remains in a vertical state and the driving shaft 2 remains in a horizontal state.

[0061] During the specific installation, the support frame 4 moves horizontally and gradually approaches the end of the integral movable frame 5, so that the vertical plate 51 and the connecting horizontal plate 52 are inserted into the inverted T-shaped slot, and then the vertical screws 6 and the horizontal screws 7 are installed, thereby realizing the connection between the support frame 4 and the integral movable frame 5 and keeping the support frame 4 in a vertical state; then the support frame 4 is connected to the second support structure 3.

[0062] Third embodiment:

[0063] like Figure 1 As shown, a driving shaft support structure of a vertical ring rolling machine includes an integral moving frame 5, a driving shaft, a first support structure 1, a support frame 4, a second support structure 3 and a third support structure 9;

[0064] The top of the integral moving frame 5 is connected to the active oil cylinder. Driven by the active oil cylinder, the integral moving frame 5 moves downward, and the active shaft 2 rolls the ring.

[0065] The integral mobile frame 5 is in the shape of a “┌”, the first supporting structure 1 is arranged at the bottom of the middle position of the integral mobile frame 5, the supporting frame 4 is vertically arranged at the bottom of the right side of the integral mobile frame 5, the second supporting structure 3 is arranged at the bottom of the supporting frame 4; the third supporting structure 9 is arranged at the bottom of the left side of the integral mobile frame 5;

[0066] The first support structure 1 includes a first bearing mounting cylinder and a first rolling bearing arranged in the first bearing mounting cylinder, the driving shaft 2 partially passes through the first rolling bearing, and the first support structure 1 provides support force for the main part of the driving shaft 2;

[0067] The second support structure 3 includes a second bearing mounting cylinder 31 and a second rolling bearing 32 arranged in the second bearing mounting cylinder. The end of the driving shaft 2 passes through the second rolling bearing 32. The second support structure 3 provides a supporting force to the end of the driving shaft 2, thereby promoting the driving shaft 2 to maintain balance during operation, thereby ensuring the forming quality of the ring.

[0068] The third supporting structure 9 includes a third bearing mounting cylinder and a third rolling bearing arranged in the third bearing mounting cylinder. The first end of the driving shaft 2 passes through the third rolling bearing. The third supporting structure 9 provides supporting force for the first end of the driving shaft 2.

[0069] The centers of the first supporting structure 1 , the second supporting structure 3 and the third supporting structure 9 remain collinear.

[0070] like Figure 3 and 4 As shown, grooves are symmetrically arranged on the front and rear sides of the position where the integral moving frame 5 is connected to the supporting frame 4 , forming an I-shape or ⊥-shape, and include a vertical plate 51 and a connecting horizontal plate 52 at the bottom of the vertical plate 51 .

[0071] The support frame 4 includes a first half support frame 41 and a second half support frame 42, the first half support frame 41 and the second half support frame 42 have the same structure and are arranged opposite to each other; the second bearing mounting cylinder 31 includes two half bearing mounting cylinders, namely a first half bearing mounting cylinder 311 and a second half bearing mounting cylinder 312; the first half support frame 41 and the first half bearing mounting cylinder 311 are an integral structure, and the second half support frame 42 and the second half bearing mounting cylinder 312 are an integral structure;

[0072] The first half support frame 41 is in a “┌” shape, including a horizontal connection 411 and a vertical support plate 412, and the first half support frame 41 and the vertical support plate 412 of the second half support frame 42 are transversely fixed by bolts and nuts;

[0073] A vertical bearing installation cylinder connecting plate 313 is provided at the bottom of the first half bearing installation cylinder 311 and the second half bearing installation cylinder 312, and the two bearing installation cylinder connecting plates 313 are transversely fixed by bolts and nuts;

[0074] The horizontal connecting plate 411 has a horizontal groove; the two horizontal connecting plates 411 are combined to form a ⊥-shaped installation groove, and the vertical plate 51 and the connecting horizontal plate 52 at the end of the overall movable frame 5 can be inserted into the installation groove, and the connecting horizontal plate 52 and the horizontal connecting plate 411 are vertically fixed by bolts and nuts.

[0075] During the specific installation, the first half support frame 41 and the second half support frame 42 are first separated, and the second rolling bearing 32 is sleeved on the end of the driving shaft 2;

[0076] Then the horizontal groove of the first half support frame 41 is clamped on one side of the connecting cross plate 52, and at the same time, the first half bearing mounting cylinder 311 is aligned with the second rolling bearing 32. As the first half support frame 41 is pushed inward, the first half bearing mounting cylinder 311 is adjacent to the second rolling bearing 32. At this time, the second rolling bearing 32 is first installed together with the first half bearing mounting cylinder 311, and then the horizontal groove of the second half support frame 42 is clamped on the other side of the connecting cross plate 52. As the second half support frame 42 is pushed inward, the two vertical support plates 412 are gradually close to each other, and the second half bearing mounting cylinder 312 is adjacent to the second rolling bearing 32. Finally, the first half support frame 41 is pushed inward, and the second half bearing mounting cylinder 312 is adjacent to the second rolling bearing 32. The half support frame 41 and the second half support frame 42 are combined, and the second half bearing mounting cylinder 312 and the first half bearing mounting cylinder 311 are combined to form a complete second bearing mounting cylinder 312. The end of the active shaft 2 with the second rolling bearing 32 is placed in the second bearing mounting cylinder 312. At this time, the nut used to connect the first half support frame 41 and the second half support frame 42 is tightened, and the nut used to connect the first half bearing mounting cylinder 311 and the second half bearing mounting cylinder 312 is tightened; finally, the horizontal connecting plate 411 and the connecting cross plate 52 are connected by bolts and nuts, thereby completing the detachable and stable connection between the support frame 4 and the overall movable frame 5.

[0077] When disassembly and maintenance are required, loosen the nuts used to connect the first half support frame 41 and the second half support frame 42, the nuts used to connect the first half bearing mounting cylinder 311 and the second half bearing mounting cylinder 312, and the nuts used to connect the horizontal connecting plate 411 and the connecting cross plate 52, and the support frame 4 can be separated from the overall movable frame 5.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A driving shaft support structure of a vertical ring rolling machine, comprising an integral moving frame and a driving shaft, wherein the top of the integral moving frame is connected to a driving oil cylinder, and a plurality of shaft shoulders are arranged on the driving shaft, characterized in that: It also includes a first supporting structure, a supporting frame, a second supporting structure and a third supporting structure. The overall movable frame is in the shape of a "┌". The first supporting structure is arranged at the bottom of the middle position of the overall movable frame, the supporting frame is vertically arranged at the bottom of the right side of the overall movable frame, and the second supporting structure is arranged at the bottom of the supporting frame; the third supporting structure is arranged at the bottom of the left side of the overall movable frame; the first supporting structure includes a first bearing mounting cylinder and a first rolling bearing arranged in the first bearing mounting cylinder, and the main part of the driving shaft passes through the first rolling bearing; the second supporting structure includes a second bearing mounting cylinder and a second rolling bearing arranged in the second bearing mounting cylinder, and the end of the driving shaft passes through the second rolling bearing; the third supporting structure includes a third bearing mounting cylinder and a third rolling bearing arranged in the third bearing mounting cylinder, and the head end of the driving shaft passes through the third rolling bearing; the centers of the first supporting structure and the second supporting structure remain collinear.

2. The driving shaft support structure of a vertical ring rolling machine according to claim 1, characterized in that: A reinforcing rib is provided on the upper surface of the integral moving frame.

3. The driving shaft support structure of a vertical ring rolling machine according to claim 1, characterized in that: The support frame and the integral moving frame are connected via bolts and nuts.

4. The driving shaft support structure of a vertical ring rolling machine according to claim 1, characterized in that: The position where the integral moving frame is connected to the supporting frame is symmetrically provided with grooves on both sides, which are I-shaped or ⊥-shaped, and include a vertical plate and a connecting horizontal plate at the bottom of the vertical plate.

5. The driving shaft support structure of a vertical ring rolling machine according to claim 4, characterized in that: An inverted T-shaped slot is provided on the top of the support frame, and the vertical plate and the connecting horizontal plate are inserted into the inverted T-shaped slot. The overall movable frame and the support frame are fixed in the vertical direction by vertical screws and in the horizontal direction by horizontal screws.

6. The driving shaft support structure of a vertical ring rolling machine according to claim 4, characterized in that: The support frame includes a first half support frame and a second half support frame, the first half support frame and the second half support frame have the same structure and are arranged opposite to each other; the second bearing mounting cylinder includes two half bearing mounting cylinders, namely the first half bearing mounting cylinder and the second half bearing mounting cylinder; the first half support frame and the first half bearing mounting cylinder are an integral structure, and the second half support frame and the second half bearing mounting cylinder are an integral structure; the first half support frame is in the shape of "┌", including a horizontal connecting plate and a vertical supporting plate, and the vertical supporting plates of the first half support frame and the second half support frame are transversely fixed by bolts and nuts; a vertical bearing mounting cylinder connecting plate is provided at the bottom of the first half bearing mounting cylinder and the second half bearing mounting cylinder, and the two bearing mounting cylinder connecting plates are transversely fixed by bolts and nuts, and the horizontal connecting plate is provided with a horizontal groove; the two horizontal connecting plates are combined to form a ⊥-shaped installation groove, and the vertical plate and the connecting cross plate at the end of the overall movable frame can be inserted into the installation groove, and the connecting cross plate and the horizontal connecting plate are vertically fixed by bolts and nuts.

Images