Support device for a rotating shaft

Abstract

The present disclosure provides a rotating shaft supporting device, belonging to the technical field of mechanical part assembly. The rotating shaft supporting device comprises a supporting flange, a plurality of supporting seats and a plurality of connecting assemblies. The supporting flange is used for connecting with the end face of the end to be supported of the rotating shaft. The plurality of supporting seats are arranged at the outer periphery of the supporting flange with the center of the supporting flange as the center and are used for connecting with the base of the equipment. The plurality of connecting assemblies are arranged one by one with the plurality of supporting seats. Each of the plurality of connecting assemblies comprises a first part and a second part. The first part is connected with the second part and can rotate relative to the second part. The first part is connected with the corresponding supporting seat. The second part is in contact with the second flange face of the supporting flange. The present disclosure can adapt to the deflection of the rotating shaft.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of mechanical part assembly, and particularly relates to a support device of a rotating shaft. BACKGROUND

[0002] The rotating shaft is a common moving part in the field of mechanical design. The rotating shaft is an actuator that can transmit the rotary torque output by a rotating driving device such as a motor or a hydraulic motor to other devices.

[0003] In the related art, the rotating shaft is generally supported by a bearing. In actual use, the bearing is usually sleeved on one end of the rotating shaft (the other end of the rotating shaft is connected to other devices), and then the bearing is fixed on the base of the corresponding device through a bearing seat, so that the bearing can position the rotating shaft in the axial and radial directions to support the rotating shaft.

[0004] However, for large mechanical equipment with low precision requirements, due to the factors such as machining error and assembly error of the coaxiality of the rotating shaft and the rotating driving device, the rotating shaft will produce a deflection in the rotating process. The bearing supporting the rotating shaft is sleeved on one end of the rotating shaft, and the bearing will form a constraint on the axial and radial directions of the rotating shaft, so that the bearing will generate a reaction force on the rotating shaft to prevent the rotating shaft from producing a deflection. That is, when the rotating shaft produces a deflection, the bearing will limit the deflection of the rotating shaft, and if this working condition continues, it will seriously accelerate the wear between the bearing and the rotating shaft, and even cause damage to the bearing and the rotating shaft, resulting in the rotating shaft unable to work normally. SUMMARY

[0005] The support device of the rotating shaft provided by the embodiments of the present disclosure can adapt to the deflection of the rotating shaft to avoid the situation that the rotating shaft is damaged by stress and cannot work normally. The technical solution is as follows:

[0006] The embodiment of the present disclosure provides a rotating shaft supporting device, which comprises a supporting flange, a plurality of supporting seats and a plurality of connecting assemblies; the supporting flange is used for connecting with an end surface of a rotating shaft end to be supported, the supporting flange has opposite first and second flange surfaces, the first flange surface is in contact with the end surface, and the center of the supporting flange is located on the axis of the rotating shaft; the plurality of supporting seats are arranged at the outer periphery of the supporting flange with the center of the supporting flange as the center, and the supporting seats are used for connecting with a base of equipment; the plurality of connecting assemblies are arranged one by one with the plurality of supporting seats, and each of the plurality of connecting assemblies comprises a first part and a second part, the first part is connected with the second part, the first part can rotate relative to the second part, the first part is connected with the corresponding supporting seat, the second part is in contact with the second flange surface of the supporting flange, and the rotation direction of the first part relative to the second part is parallel to the second flange surface.

[0007] In another implementation manner of the present disclosure, the first part comprises a connecting shaft and a connecting rod, one end of the connecting shaft is connected with the supporting seat corresponding to the connecting assembly, the other end of the connecting shaft is connected with the connecting rod, and the axis of the connecting shaft is parallel to the second flange surface; the second part comprises a shaft sleeve, the outer wall of the shaft sleeve is in contact with the second flange surface of the supporting flange, and the shaft sleeve is rotatably sleeved on the connecting rod.

[0008] In another implementation manner of the present disclosure, the connecting rod is a ball head structure, the contact surface between the shaft sleeve and the connecting rod is a curved surface corresponding to a ball, the axis of symmetry of the curved surface is coaxial with the axis of the connecting shaft; the outer circle of the shaft sleeve is tangent to the plane where the supporting flange is located.

[0009] In another implementation manner of the present disclosure, the second flange surface of the supporting flange has a wear-resistant coating, and the wear-resistant coating is in contact with the outer wall of the shaft sleeve.

[0010] In another implementation manner of the present disclosure, the wear-resistant coating is in the form of a circular ring, and the center of the circular ring where the wear-resistant coating is located is the center of the supporting flange.

[0011] In another implementation manner of the present disclosure, the wear-resistant coating is a hard alloy coating.

[0012] In another implementation manner of the present disclosure, the wear-resistant coating is connected with the second flange surface of the supporting flange by means of surfacing.

[0013] In still another implementation manner of the present disclosure, the connecting shaft comprises a middle section, a first connecting section and a second connecting section, two ends of the middle section are connected with the first connecting section and the second connecting section respectively, an outer diameter of the middle section is larger than that of the first connecting section, the connecting rod is sleeved outside the first connecting section, and one end of the connecting rod is in contact with the middle section; the second connecting section is connected with the support seat corresponding to the connecting assembly.

[0014] In still another implementation manner of the present disclosure, an outer diameter of the second connecting section is smaller than that of the middle section, and the middle section is in contact with the support seat corresponding to the connecting assembly.

[0015] In still another implementation manner of the present disclosure, the second connecting section comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected with one end of the second connecting rod, the other end of the second connecting rod is connected with the middle section, an outer diameter of the first connecting rod is smaller than that of the second connecting rod, and one end of the first connecting rod connected with the second connecting rod is in abutment with a positioning stopper inside the support seat.

[0016] The technical scheme provided by the support device for rotating shaft according to the embodiments of the present disclosure has the following beneficial effects:

[0017] When the support device for rotating shaft is used on the rotating shaft, the rotating shaft can be integrated with the support flange through the connection of the first flange surface of the support flange and the end surface of the end to be supported of the rotating shaft, because the support device for rotating shaft comprises the support flange, the plurality of support seats and the plurality of connecting assemblies.

[0018] Because the plurality of connecting assemblies are arranged in one-to-one correspondence with the plurality of support seats, and each connecting assembly in the plurality of connecting assemblies comprises a first part and a second part, the connecting assembly can be fixed on the support seat, and the connecting assembly can be in close contact with the support flange, through the connection of the first part of the connecting assembly with the corresponding support seat and the contact of the second part of the connecting assembly with the second flange surface of the support flange. In this way, when the rotating shaft deviates during rotation, a part of the connecting assemblies distributed around the support flange can limit the rotating shaft after deviation, preventing axial displacement, while adapting to the deviation of the rotating shaft, avoiding the situation that the rotating shaft is damaged by force and cannot work normally.

[0019] That is, in the above structure, the support seat and the support flange are connected through the connecting assembly, so that when the rotating shaft deviates during rotation, the deviation of the rotating shaft can be adapted, avoiding the situation that the rotating shaft is damaged by force and cannot work normally. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of the support device for the rotating shaft provided in the embodiments of this disclosure;

[0022] Figure 2 A side view of the support device for the rotating shaft provided in an embodiment of this disclosure;

[0023] Figure 3 This is a schematic diagram illustrating the use of the support device for the rotating shaft provided in an embodiment of this disclosure.

[0024] The symbols in the diagram represent the following meanings:

[0025] 1. Support flange; 11. Wear-resistant coating; 101. First flange face; 102. Second flange face;

[0026] 2. Support base;

[0027] 3. Connecting assembly; 31. Connecting shaft; 32. Connecting rod; 33. Bushing; 311. Intermediate section; 312. First connecting section; 313. Second connecting section; 3131. First connecting rod; 3132. Second connecting rod;

[0028] 100, Rotary shaft; 200, Fastener; 300, Rotary drive device; 400, Actuator. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0030] This disclosure provides a support device for a rotating shaft, such as... Figure 1 As shown, the support device for the rotating shaft includes a support flange 1, multiple support seats 2, and multiple connecting components 3.

[0031] The support flange 1 is used to connect with the end face of the rotating shaft 100 to be supported. The support flange 1 has a first flange face 101 and a second flange face 102 arranged opposite to each other. The first flange face 101 is connected with the end face of the rotating shaft 100 to be supported, and the center of the support flange 1 is located on the axis of the rotating shaft 100.

[0032] The plurality of support seats 2 are arranged at the outer periphery of the support flange 1 at intervals with the center of the support flange 1 as the center, and are used to be connected with the base of the equipment.

[0033] The plurality of connecting assemblies 3 are arranged in one-to-one correspondence with the plurality of support seats 2, and each of the plurality of connecting assemblies 3 comprises a first part and a second part, the first part of the connecting assembly 3 is connected with the second part, and the first part of the connecting assembly 3 can rotate relative to the second part of the connecting assembly 3.

[0034] The first part of the connecting assembly 3 is connected with the corresponding support seat 2, and the second part of the connecting assembly 3 is used to be in contact with the second flange surface of the support flange 1, so as to limit the movement of the support flange 1 in the direction perpendicular to the first flange surface 101.

[0035] The support device for the rotating shaft provided by the embodiments of the present disclosure uses the support flange 1, the plurality of support seats 2 and the plurality of connecting assemblies 3 when used on the rotating shaft, so that the first flange surface 101 of the support flange 1 is connected with the end surface of the end to be supported of the rotating shaft 100, so as to integrate the end of the rotating shaft 100 with the support flange 1.

[0036] Since the plurality of connecting assemblies 3 are arranged in one-to-one correspondence with the plurality of support seats 2, and each of the plurality of connecting assemblies 3 comprises a first part and a second part, the first part of the connecting assembly 3 can be connected with the corresponding support seat 2, and the second part of the connecting assembly 3 can be in contact with the second flange surface 102 of the support flange 1, so that the connecting assembly 3 can be fixed on the support seat 2, and at the same time, the connecting assembly 3 can be attached to the support flange 1. In this way, when the rotating shaft 100 deviates during rotation, a part of the connecting assemblies 3 distributed around the support flange 1 will limit the rotating shaft 100 after deviation, preventing axial displacement, while also adapting to the deviation of the rotating shaft 100, avoiding damage to the rotating shaft 100 and the situation that the rotating shaft 100 cannot work normally.

[0037] That is, in the above structure, the support seat 2 is connected with the support flange 1 through the connecting assembly 3, so that when the rotating shaft deviates during rotation, the deviation of the rotating shaft can be adapted, and the situation that the rotating shaft is damaged by force and cannot work normally is avoided.

[0038] Referring again to Figure 1 Optionally, the rotating shaft 100 and the support flange 1 are connected together through the fastener 200.

[0039] In the above implementation, the rotating shaft 100 is integrated with the support flange 1 through the fastener 200, so that detachable connection between the rotating shaft 100 and the support flange 1 can be achieved, and the support flange 1 can be flexibly selected according to the size of the end surface of the rotating shaft 100.

[0040] Exemplarily, the fastener 200 can be a bolt, a nut, a washer or the like. Correspondingly, the support flange 1 is provided with a counterbore, the bolt is inserted into the counterbore of the support flange 1 and extends out of the first flange surface 101 of the support flange 1 and is inserted into the end surface of the rotating shaft 100. The nut, the washer or the like is sleeved on the bolt and located in the counterbore. In this way, detachable connection between the rotating shaft 100 and the support flange 1 can be simply achieved.

[0041] In addition, in order to improve the stability of the connection between the rotating shaft 100 and the support flange 1, the fastener 200 is in plurality, and the plurality of fasteners 200 are arranged on the end surface of the support flange 1 in a circumferential and uniform interval with the center of the support flange 1 as the center.

[0042] Optionally, the first part includes a connecting shaft 31 and a connecting rod 32, one end of the connecting shaft 31 is connected with the support seat 2 corresponding to the connecting assembly 3, the other end of the connecting shaft 31 is connected with the connecting rod 32, and the axis of the connecting shaft 31 is parallel to the second flange surface 102.

[0043] The second part includes a shaft sleeve 33, the outer wall of the shaft sleeve 33 is in contact with the second flange surface 102 of the support flange 1, and the shaft sleeve 33 is rotatably sleeved on the connecting rod 32.

[0044] In the above implementation, the connecting assembly 3 is arranged in the above structure, so that the connecting rod 32 and the support seat 2 can be connected together through the connecting shaft 31, and the second flange surface 102 of the support flange 1 can be in contact with the shaft sleeve 33 to limit the movement of the support flange 1 in the direction perpendicular to the first flange surface 101.

[0045] That is, the above structure can simultaneously achieve the purpose of preventing the rotating shaft 100 from moving in the direction of its own axis and preventing the rotating shaft 100 from tilting.

[0046] Of course, the above connecting assembly 3 can also be in other forms, such as a universal joint structure, as long as the first part can rotate relative to the second part and can be connected with the support seat 2 and the like.

[0047] Exemplarily, the connecting shaft 31 comprises a middle section 311, a first connecting section 312 and a second connecting section 313. The two ends of the middle section 311 are connected with the first connecting section 312 and the second connecting section 313 respectively, and the outer diameter of the middle section 311 is greater than that of the first connecting section 312. The connecting rod 32 is sleeved outside the first connecting section 312, and one end of the connecting rod 32 is in contact with the middle section 311. The second connecting section 313 is connected with the support seat 2 corresponding to the connecting assembly 3.

[0048] In the above implementation, the connecting shaft 31 is arranged as the middle section 311, the first connecting section 312 and the second connecting section 313, so that the first connecting section 312 and the second connecting section 313 can be connected as a whole through the middle section 311, and meanwhile, the first connecting section 312 can be connected with the connecting rod 32 and the second connecting section 313 can be connected with the support seat 2 corresponding to the connecting assembly 3.

[0049] The outer diameter of the middle section 311 is greater than that of the first connecting section 312, so that the end surface of the middle section 311 can be in close contact with the corresponding connecting rod 32 to limit the assembly of the support seat 2, thereby further improving the assembly positioning effect of the two.

[0050] Optionally, the outer diameter of the second connecting section 313 is smaller than that of the middle section 311, and the middle section 311 is in contact with the support seat 2 corresponding to the connecting assembly 3.

[0051] In the above implementation, the outer diameter of the second connecting section 313 is arranged to be smaller than that of the middle section 311, so that the end surface of the middle section 311 can be in close contact with the corresponding support seat 2 to limit the assembly of the support seat 2, thereby further improving the assembly positioning effect of the two.

[0052] Exemplarily, the first connecting section 312 is sleeved inside the connecting rod 32, and the first connecting section 312 and the end of the connecting rod 32 are connected together through fasteners.

[0053] In this way, the first connecting section 312 and the connecting rod 32 can be firmly connected as a whole, and meanwhile, the disassembly of the first connecting section 312 and the connecting rod 32 can be facilitated. That is, when any one of the components between the first connecting section 312 and the connecting rod 32 needs to be replaced, the fasteners can be removed at any time to achieve the replacement.

[0054] Of course, the above-mentioned fasteners can also be bolts, nuts, washers and the like structural members. Correspondingly, the end of the first connecting section 312 is provided with a connecting hole, the bolt is screwed into the corresponding connecting hole, the washer is located on the end face of the end of the connecting rod 32 away from the support base 2, and the outer diameter of the washer is greater than the inner diameter of the connecting rod 32. The nut is sleeved on the outside of the bolt and abuts against the washer. In this way, the connecting shaft 31 can be fixed in the inside of the connecting rod 32 in cooperation with the intermediate section 311, that is, the fixed connection of the connecting shaft 31 and the connecting rod 32 can be realized.

[0055] Of course, the connecting manner of the connecting shaft 31 and the connecting rod 32 can also be other manners, as long as the connecting shaft 31 and the connecting rod 32 can be firmly assembled together, and the above-mentioned manner is not limited in the embodiment of the present disclosure.

[0056] Optionally, the second connecting section 313 includes a first connecting rod 3131 and a second connecting rod 3132, one end of the first connecting rod 3131 is connected with one end of the second connecting rod 3132, the other end of the second connecting rod 3132 is connected with the intermediate section 311, the outer diameter of the first connecting rod 3131 is smaller than the outer diameter of the second connecting rod 3132, and the end of the first connecting rod 3131 connected with the second connecting rod 3132 abuts against the positioning stop in the inside of the support base 2.

[0057] In the above-mentioned implementation manner, the second connecting section 313 is set as the first connecting rod 3131 and the second connecting rod 3132, so that the second connecting section 313 can be set as different outer diameters, so as to form the positioning boss matched with the positioning stop in the inside of the support base 2 through two connecting sections with different outer diameters, and then the connecting shaft 31 can be conveniently positioned and assembled on the corresponding support base 2.

[0058] Optionally, the support base 2 can be provided with different assembly parts connected with the first connecting rod 3131 and the second connecting rod 3132. For example, the nut can be threadedly sleeved on the first connecting rod 3131, and the nut can also be threadedly sleeved on the second connecting rod 3132, and the first connecting rod 3131 cooperates with the nut, so that the first connecting rod 3131 and the second connecting rod 3132 can be respectively fastened on the support base 2 through the two nuts.

[0059] Of course, the second connecting section 313 can also be directly fixed on the support base 2 through other manners, for example, the second connecting section 313 is directly connected with the support base 2 through welding. As long as the second connecting section 313 can be firmly fixed on the support base 2, the above-mentioned connecting manner is not limited in the present disclosure.

[0060] Optionally, the connecting rod 32 is a ball head structural member, the contact surface between the shaft sleeve 33 and the connecting rod 32 is a curved surface corresponding to a sphere, the axis of the sphere is coaxial with the axis of the connecting shaft 31. The outer circle of the shaft sleeve 33 is tangent to the plane where the support flange 1 is located.

[0061] In the above implementation, the connecting rod 32 is provided as a spherical head structure, so that the contact surface between the shaft sleeve 33 and the connecting rod 32 is a spherical curved surface, and rotation is realized between the two through the curved surface.

[0062] And the outer circle of the shaft sleeve 33 is tangent to the plane where the support flange 1 is located, so as to limit the movement of the support flange 1 and the rotating shaft 100 along their own axes.

[0063] That is, when the rotating shaft deviates due to eccentricity during rotation, the multiple joint bearings distributed around the rotating shaft can in turn support the deviated support flange 1. In this way, the rotating shaft can be supported to prevent axial displacement, and the deviation of the rotating shaft 100 is also adapted, avoiding the situation that the rotating shaft 100 is damaged by force and cannot work normally.

[0064] In addition, in the above structure, the shaft sleeve 33 and the connecting rod 32 can be directly selected as joint bearings, so that the outer circle of the joint bearing is in line contact with the support flange 1, avoiding point contact and reducing the wear between the shaft sleeve 33 and the support flange 1, thereby prolonging the service life of the shaft sleeve 33 and the connecting rod 32.

[0065] Figure 2 The side view of the support device for the rotating shaft provided by the embodiment of the present disclosure is provided in combination with Figure 2 Optionally, the second flange surface 102 of the support flange 1 has a wear-resistant coating 11, and the wear-resistant coating 11 is in contact with the outer wall of the shaft sleeve 33.

[0066] In the above implementation, the second flange surface 102 of the support flange 1 has a wear-resistant coating 11, which can improve the hardness of the contact surface between the second flange surface 102 of the support flange 1 and the shaft sleeve 33, and can also reduce the friction coefficient between the joint bearing and the second flange surface 102, thereby further reducing the wear of the support flange 1 and prolonging the service life of the support flange 1.

[0067] Optionally, the wear-resistant coating 11 is in the form of a circular ring, and the center of the circular ring where the wear-resistant coating 11 is located is the center of the support flange 1.

[0068] In the above implementation, the wear-resistant coating 11 is provided as a circular ring with the center of the support flange 1 as the center, so that when the support flange 1 rotates with the rotating shaft 100, the contact surface between the second flange surface 102 of the support flange 1 and the shaft sleeve 33 is always attached with the wear-resistant coating 11, and at the same time, the coating area of the wear-resistant coating 11 can be reduced, thereby simplifying the process and reducing the manufacturing cost of the support device.

[0069] Optionally, the wear-resistant coating 11 is a hard alloy coating.

[0070] In the above implementation, the wear-resistant coating 11 is provided as a cemented carbide coating, so that the hardness of the wear-resistant coating 11 can be further improved by the cemented carbide coating, so as to further improve the hardness of the contact surface between the second flange surface 102 of the support flange 1 and the outer circle of the shaft sleeve 33, reduce the friction coefficient between the knuckle bearing and the second flange surface 102 of the support flange 1, reduce the wear of the support flange 1, and prolong the service life of the support flange 1.

[0071] Optionally, the cemented carbide coating is tool steel.

[0072] In the above implementation, the cemented carbide coating is provided as tool steel, so that the wear-resistant coating 11 has high hardness, wear resistance and large friction coefficient at a low cost, so as to improve the hardness of the contact surface between the second flange surface 102 of the support flange 1 and the outer circle of the shaft sleeve 33, reduce the friction coefficient between the knuckle bearing and the second flange surface 102 of the support flange 1, reduce the wear of the support flange 1, and prolong the service life of the support flange 1.

[0073] Optionally, the wear-resistant coating 11 is connected to the second flange surface of the support flange 1 by surfacing.

[0074] In the above implementation, the wear-resistant coating 11 is arranged on the second flange surface of the support flange 1 by surfacing, so that the wear-resistant coating 11 can be simply coated on the surface of the second flange surface 102 of the support flange 1.

[0075] Of course, in order to ensure that the wear-resistant coating 11 has strong hardness, when the wear-resistant coating 11 is arranged on the second flange surface 102 of the support flange 1 by surfacing, it is necessary to ensure that the surfacing layer (that is, the wear-resistant coating 11 has a thickness of more than 3mm.

[0076] Surfacing refers to a process of using welding method to stack materials with certain properties on the surface of the welded part. Of course, the purpose of surfacing is not to connect the welded part, but to obtain a deposited metal with special properties such as wear resistance, heat resistance and corrosion resistance on the surface of the welded part, or to restore or increase the size of the welded part.

[0077] As can be seen, the wear-resistant coating 11 can be simply coated on the surface of the second flange surface 102 of the support flange 1 by surfacing.

[0078] Of course, before welding the wear-resistant coating 11 onto the surface of the second flange face 102 of the support flange 1, the second flange face 102 of the support flange 1 needs to be rough-machined to remove rust, oil stains, and other contaminants from its surface. Defects such as porosity, slag inclusions, sand inclusions, and cracks also need to be removed from the surface of the second flange face 102. If the second flange face 102 has these defects, rough turning and rough milling processes are required.

[0079] When performing overlay welding, the support flange 1 needs to be preheated first, generally at a temperature of 300-400℃.

[0080] Meanwhile, during the surfacing process, the welding rods must be dried, the heating temperature must be 350-400℃, and the temperature must be maintained for two hours.

[0081] The working principle of the support device for the rotating shaft is briefly introduced below:

[0082] Figure 3 This is a schematic diagram illustrating the use of the support device for the rotating shaft provided in the embodiments of this disclosure, in conjunction with... Figure 3 The transmission end of the rotating shaft 100 ( Figure 1 The left end of the rotating shaft 100 is connected to the rotating drive device 300. An actuator 400 is installed in the middle of the rotating shaft 100, and the rotating shaft 100 and the actuator 400 are connected by a key and a keyway.

[0083] When the rotating shaft 100 is rotating, if it wobbles because its axis is not coaxial with the rotating shaft of the rotating drive device 300, at least one of the multiple connecting components 3 around the rotating shaft 100 can support the support flange 1 after the wobbling. This can support the rotating shaft 100 and prevent its axial displacement, while not restricting the wobbling of the rotating shaft 100, thus avoiding damage to the rotating shaft 100 due to stress and failure to work properly.

[0084] The rotary drive device 300 mentioned above is a motor, and the actuator 400 is the cutterhead of the tunnel boring machine.

[0085] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A support device for a rotating shaft, characterized in that, The support device for the rotating shaft includes a support flange (1), multiple support seats (2) and multiple connecting components (3); The support flange (1) is used to connect with the end face of the rotating shaft (100) to be supported. The support flange (1) has a first flange face (101) and a second flange face (102) opposite to each other. The first flange face (101) is in contact with the end face, and the center of the support flange (1) is located on the axis of the rotating shaft (100). The plurality of support seats (2) are arranged at intervals around the center of the support flange (1) on the outer periphery of the support flange (1), and the support seats (2) are used to connect to the base of the equipment. The plurality of connecting components (3) are arranged one-to-one with the plurality of support seats (2), and each of the plurality of connecting components (3) includes a first part and a second part. The first part includes a connecting shaft (31) and a connecting rod (32). One end of the connecting shaft (31) is connected to the support seat (2) corresponding to the connecting component (3), and the other end of the connecting shaft (31) is connected to the connecting rod (32). The axis of the connecting shaft (31) is parallel to the second flange surface (102). The second part includes a bushing (33). The outer wall of the bushing (33) is in contact with the second flange surface (102) of the support flange (1), and the bushing (33) is rotatably sleeved on the connecting rod (32). The connecting rod (32) is a ball-head structure. The contact surface between the bushing (33) and the connecting rod (32) is a curved surface corresponding to the sphere. The axis of symmetry of the curved surface is coaxial with the axis of the connecting shaft (31). The outer circle of the bushing (33) is tangent to the plane where the supporting flange (1) is located. When the support flange (1) swings along with the rotating shaft (100), part of the bushing (33) can support the swinging support flange (1) to limit the axial displacement of the support flange (1).

2. The support device according to claim 1, characterized in that, The second flange face (102) of the support flange (1) has a wear-resistant coating (11) that is in contact with the outer wall of the bushing (33).

3. The support device according to claim 2, characterized in that, The wear-resistant coating (11) is annular, and the center of the annulus containing the wear-resistant coating (11) is the center of the supporting flange (1).

4. The support device according to claim 2, characterized in that, The wear-resistant coating (11) is a hard alloy coating.

5. The support device according to claim 2, characterized in that, The wear-resistant coating (11) is connected to the second flange face (102) of the support flange (1) by overlay welding.

6. The support device according to claim 1, characterized in that, The connecting shaft (31) includes an intermediate section (311), a first connecting section (312), and a second connecting section (313). The two ends of the intermediate section (311) are respectively connected to the first connecting section (312) and the second connecting section (313). The outer diameter of the intermediate section (311) is larger than that of the first connecting section (312). The connecting rod (32) is sleeved on the outside of the first connecting section (312), and one end of the connecting rod (32) is in contact with the intermediate section (311). The second connecting segment (313) is connected to the support base (2) corresponding to the connecting component (3).

7. The support device according to claim 6, characterized in that, The outer diameter of the second connecting segment (313) is smaller than the outer diameter of the middle segment (311), and the middle segment (311) is in contact with the support base (2) corresponding to the connecting component (3).

8. The support device according to claim 6, characterized in that, The second connecting section (313) includes a first connecting rod (3131) and a second connecting rod (3132). One end of the first connecting rod (3131) is connected to one end of the second connecting rod (3132), and the other end of the second connecting rod (3132) is connected to the middle section (311). The outer diameter of the first connecting rod (3131) is smaller than the outer diameter of the second connecting rod (3132). The first connecting rod (3131) connects to one end of the second connecting rod (3132) and abuts against the positioning stop inside the support seat (2).

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