High-rigidity electric spindle bearing seat

Abstract

The utility model belongs to the technical field of roller manufacturing, and particularly relates to a high-rigidity electric spindle bearing seat which comprises a bearing seat body, a bearing, a fixing structure and a cooling system, the bearing is arranged between the bearing seat body and the fixing structure, the fixing structure is arranged on the front face of the bearing seat body, and the cooling system is arranged on the bearing seat body. The cooling system is arranged in the bearing seat; a positioning disc is arranged on the back face of the bearing seat, bearing built-in holes are formed in the two ends of the bearing seat in a penetrating mode, and an annular groove is formed in the front face of the bearing seat and located on the periphery of the bearing built-in holes. The fixing structure comprises a fixing disc, rotating shaft through holes are formed in the two ends of the fixing disc in a penetrating mode, limiting grooves are formed in the ends, close to the bearing seat, of the rotating shaft through holes, limiting discs are arranged in the limiting grooves, and the high-rigidity motorized spindle bearing seat has the effect that the stability is improved, and meanwhile the rigidity of the whole assembly of the bearing seat is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of roll manufacturing, and particularly relates to a high-rigidity motorized spindle bearing seat. BACKGROUND

[0002] Roller refers to the main working component and tool for making metal produce continuous plastic deformation on a rolling mill. The roller mainly consists of a roller body, a roller neck and a shaft head. The roller body is the middle part of the roller actually participating in rolling metal. It has a smooth cylindrical surface or a surface with rolling grooves. The roller neck is installed in the bearing and transmits the rolling force to the rack through the bearing seat and the pressing device. The driving end shaft head is connected with the gear seat through the connecting shaft to transmit the rotating torque of the motor to the roller. The roller can be arranged in the form of two rollers, three rollers, four rollers or multiple rollers in the rack of the rolling mill.

[0003] In the process of roll manufacturing, large-scale machine tools are needed for manufacturing, and in the machine tool, the bearing seat is an important part for supporting the motorized spindle and keeping it centered with the machine tool body.

[0004] In the prior art, patent number 202222079012.1, a motorized spindle bearing seat, the patent includes a shell, the bottom end of the shell is integrally formed with the inner ring of the connecting disc, the top end of the shell is integrally formed with the outer ring of the first stop ring, the inner wall of the shell is sleeved with the cooling mechanism, the outer wall top end of the side stop is integrally formed with the inner wall of the second stop ring, the outer wall bottom end of the side stop is integrally formed with the inner wall of the third stop ring, and the inner wall top end of the side stop is integrally formed with the outer wall of the stop ring. The motorized spindle bearing seat cooperates with the shell, the first stop ring, the side stop, the second stop ring and the third stop ring to provide a mounting mechanism for the dividing mechanism. Through the cooperation of the water joint, the second connecting sleeve, the first partition plate, the second partition plate and the through hole, the cooling water circulation is realized to achieve the purpose of cooling, effectively increasing the service life of the overall mechanism, reducing production cost, improving production efficiency, and being simple to use, practical and easy to popularize.

[0005] The prior art in the above has the following defects: Since the motorized spindle bearing seat generally adopts precise machining and high-quality bearing structure, it can ensure that it can bear the load under high-speed rotation. Although the above patent achieves the effect of cooling, the rigidity of the overall structure of the bearing seat is not improved. When facing high-strength operation of the rotating shaft, the bearing lacks stable support and installation structure, which reduces the service life and stability of the motorized spindle. Therefore, we propose a high-rigidity motorized spindle bearing seat. UTILITY MODEL CONTENTS

[0006] The utility model discloses a high rigidity electric spindle bearing seat, since electric spindle bearing seat generally adopts accurate machining and high -quality bearing structure, can only ensure that it can carry the load under high -speed rotation, although the above patent reached the effect of cooling, but the rigidity of bearing seat overall structure has not promoted, this is in the face of the operation of high -strength rotating shaft, and bearing lacks stable support mounting structure, lead to electric spindle life and stability reduce technical problem, reach fixed disc and position bearing inbuilt hole in bearing, wherein first second spring limit position hole inbuilt spring tension limit disc, thereby after fixed disc and bearing seat fixed position bearing outer ring, promote the rigidity of bearing seat overall assembly's purpose of improving stability.

[0007] In order to solve the above technical problems, the utility model provides a kind of high rigidity electric spindle bearing seat, comprising: including: bearing seat, bearing, fixed structure and cooling system, the bearing is located between bearing seat and fixed structure, the fixed structure is located at the front of bearing seat, the cooling system is inbuilt in bearing seat interior;

[0008] The back of the bearing seat is provided with a positioning disc, and the two ends of the bearing seat are provided with bearing inbuilt holes.

[0009] The front of the fixed structure is provided with a sealing cover.

[0010] The front of the fixed structure is provided with a sealing cover.

[0011] Further, the positioning disc is used to be fixed with the electric spindle, one end of the bearing inbuilt hole close to the positioning disc is provided with a limiting protrusion, and the positioning disc, the limiting protrusion and the bearing seat are integrally formed.

[0012] Further, the two circumferential surfaces in the circular groove are provided with annular thread grooves.

[0013] Further, one end of the fixed disc close to the bearing seat is provided with a threaded protrusion ring corresponding to the circular groove, the two circular shaft surfaces inside and outside the threaded protrusion ring are provided with annular thread parts, the annular thread grooves are matched with the annular thread parts and are screw connected.

[0014] Further, the limiting disc is provided with through holes at both ends, a plurality of first spring limiting holes are arranged around one end of the limiting disc close to the fixed disc, second spring limiting holes are arranged in the limiting groove corresponding to the first spring limiting holes, springs are arranged between the first spring limiting holes and the second spring limiting holes, and a contact pad made of rubber is arranged on one side of the limiting disc close to the bearing seat.

[0015] Further, the bearing seat and the fixed disc are symmetrically provided with a plurality of bolt fixing buckles outside, and the sealing cover is fixed with the fixed disc through an internal hexagonal bolt.

[0016] Further, the cooling system comprises a cooling channel arranged around the inside of the bearing seat and an in-out water circulation interface arranged outside the bearing seat.

[0017] The utility model discloses beneficial effect is:

[0018] 1. Through the design of fixed structure, the bearing in the bearing built-in hole is positioned by the fixed disc, and the built-in spring in the first second spring limiting hole is tensioned to the limiting disc, so that the outer ring of the bearing is limited after the fixed disc and the bearing seat are fixed, the stability is improved, and the rigidity of the whole assembly of the bearing seat is improved, so that the stability and the yield rate of the roll in the manufacturing process are improved.

[0019] 2. Through the design of the bearing seat, the cooling system and the sealing cover, the bearing is built-in by the bearing seat and the fixed structure, thereby forming an effective and stable bearing limiting space, and the bearing support can be carried out, and the cooling effect of the cooling system and the sealing cover and the front dustproof effect are combined, and the operation life of the motorized spindle is improved.

[0020] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. DRAWINGS

[0021] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0022] Figure 1 It is the overall structure schematic view of the utility model;

[0023] Figure 2 It is the overall structure split view of the utility model;

[0024] Figure 3 It is the fixed disc back structure plane view of the utility model;

[0025] Figure 4 It is the bearing seat side structure dissection view of the utility model.

[0026] In the drawing:

[0027] 1. Bearing housing; 11. Positioning plate; 12. Bearing internal hole; 13. Annular groove; 131. Annular threaded groove; 14. Limiting protrusion;

[0028] 2. Bearings;

[0029] 3. Fixed structure; 31. Fixed disc; 32. Rotary shaft through hole; 33. Limiting groove; 331. Second spring limiting hole; 34. Limiting disc; 341. First spring limiting hole; 342. Spring; 343. Contact pad; 35. Threaded protrusion ring; 351. Annular threaded part;

[0030] 4. Cooling system; 41. Cooling passage; 42. Water circulation interface;

[0031] 5. Sealing cap. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Example:

[0034] like Figures 1 to 4 As shown, a high-rigidity electric spindle bearing housing includes: a bearing housing 1, a bearing 2, a fixing structure 3, and a cooling system 4. The bearing 2 is located between the bearing housing 1 and the fixing structure 3, and the fixing structure 3 is located on the front of the bearing housing 1. The cooling system 4 is built into the bearing housing 1. A positioning plate 11 is provided on the back of the bearing housing 1. Bearing housing holes 12 are provided through both ends of the bearing housing 1 to house the bearing 2. An annular groove 13 is provided on the front of the bearing housing 1 and around the bearing housing hole 12. The annular groove 13 is used to mate with the protrusion 31 on the fixing plate and to make a threaded connection to strengthen the fixation. The fixing structure 3 includes a fixing plate 31. Rotary shaft through holes 32 are provided through both ends of the fixing plate 31. A limiting groove 33 is provided at the end of the rotary shaft through hole 32 near the bearing housing 1. A limiting disc 34 is provided in the limiting groove 33. A sealing cover 5 is provided on the front of the fixing structure 3.

[0035] like Figures 1 to 4As shown, the positioning disc 11 is used to be fixed with the electric spindle, the bearing built-in hole 12 is provided with a limiting protrusion 14 at one end close to the positioning disc 11, the limiting protrusion 14 limits the bearing when the bearing is built in, the positioning disc 11, the limiting protrusion 14 and the bearing seat 1 are integrally formed, two circumferential surfaces in the circular ring groove 13 are provided with annular thread grooves 131, the fixed disc 31 is provided with a threaded protruding ring 35 at one end close to the bearing seat 1 corresponding to the circular ring groove 13, the threaded protruding ring 35 is provided with annular threaded parts 351 on two circular shaft surfaces inside and outside, the annular thread grooves 131 are matched with the annular threaded parts 351 and are threadedly connected, the limiting disc 34 is provided with through holes at two ends, a plurality of first spring limiting holes 341 are provided around one end of the limiting disc 34 close to the fixed disc 31, a plurality of second spring limiting holes 331 are provided in the limiting groove 33 corresponding to the first spring limiting holes 341, springs 342 are arranged between the first spring limiting holes 341 and the second spring limiting holes 331, the limiting disc 34 is provided with a contact pad 343 made of rubber on one side close to the bearing seat 1, a plurality of bolt fixing buckles are symmetrically arranged on the periphery of the bearing seat 1 and the fixed disc 31, after the installation of the fixed disc 31 and the bearing seat 1 is completed, the bolt fixing buckles arranged symmetrically are bolted to perform secondary fixing, the sealing cover 5 is fixed with the fixed disc 31 through an internal hexagonal bolt, the cooling system 4 comprises a cooling channel 41 arranged around the inside of the bearing seat 1 and a water inlet and outlet circulation interface 42 arranged on the periphery of the bearing seat 1, the water inlet and outlet circulation interface 4 is connected with an external pipeline to perform cold circulation.

[0036] As described above, first, the fixed disc 31 and the bearing seat 1 are installed, after the bearing 2 is built in the bearing built-in hole 12, then a plurality of groups of springs 352 are built in the limiting groove 33 respectively, are limited through the second spring limiting holes 331, then the limiting disc 34 is corresponded with the springs 352, and the springs are butt jointed into the first spring limiting holes 341, then the threaded protruding ring 35 on the fixed disc 31 is butt jointed with the circular ring groove 13, the fixed disc 31 is rotated, the annular thread grooves 131 are threadedly connected with the annular threaded parts 351, thereby the installation of the fixed disc 31 and the bearing seat 1 and the built-in of the bearing 2 are completed, the spring 342 is tensioned to limit the bearing through the limiting disc 34 cooperating with the contact pad 353, the bearing 2 is prevented from shaking, the rigidity of the internal structure is improved, then the sealing cover 5 is installed through the internal hexagonal bolt, finally the whole is installed through the positioning disc 11, thereby cooperating with the electric spindle and the cooling system 4 to operate.

[0037] Through the above technical scheme, the stability and the yield of the roll in the manufacturing process are improved.

[0038] Or components known to those skilled in the art, the structure and principle are known to those skilled in the art through technical manual or through conventional experimental method.

[0039] In the description of the embodiments of the utility model, unless another definite provision and limitation, the term "mount", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For the ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to the specific circumstances.

[0040] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0041] Based on the above ideal embodiments of the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model.The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A high-rigidity electric spindle bearing housing, characterized in that, include: The bearing housing (1), bearing (2), fixing structure (3) and cooling system (4) are provided, wherein the bearing (2) is located between the bearing housing (1) and the fixing structure (3), the fixing structure (3) is located on the front of the bearing housing (1), and the cooling system (4) is built inside the bearing housing (1). The bearing housing (1) has a positioning plate (11) on its back side, and bearing housing (1) has bearing internal holes (12) through both ends. The bearing housing (1) has an annular groove (13) on its front side and around the bearing internal holes (12). The fixing structure (3) includes a fixing disk (31), and a rotating shaft through hole (32) is provided at both ends of the fixing disk (31). A limiting groove (33) is provided at one end of the rotating shaft through hole (32) near the bearing seat (1), and a limiting disk (34) is provided in the limiting groove (33). The front of the fixing structure (3) is provided with a sealing cover (5).

2. The high-rigidity electric spindle bearing housing as described in claim 1, characterized in that, The positioning plate (11) is used to fix the electric spindle. The bearing housing (12) has a limiting protrusion (14) at one end near the positioning plate (11). The positioning plate (11), the limiting protrusion (14) and the bearing housing (1) are integrally formed.

3. A high-rigidity electric spindle bearing housing as described in claim 2, characterized in that, Both circumferential surfaces within the annular groove (13) are provided with annular threaded grooves (131).

4. A high-rigidity electric spindle bearing housing as described in claim 3, characterized in that, The fixed plate (31) is provided with a threaded protrusion ring (35) at one end near the bearing seat (1) and corresponding to the annular groove (13). The threaded protrusion ring (35) has an annular threaded portion (351) on both the inner and outer circular shaft surfaces. The annular threaded groove (131) is adapted to the annular threaded portion (351) and is threadedly connected.

5. A high-rigidity electric spindle bearing housing as described in claim 4, characterized in that, The limiting disc (34) has through holes at both ends. The end of the limiting disc (34) near the fixed disc (31) has several first spring limiting holes (341) around it. The limiting groove (33) has a second spring limiting hole (331) corresponding to the first spring limiting hole (341). A spring (342) is provided between the first spring limiting hole (341) and the second spring limiting hole (331). The side of the limiting disc (34) near the bearing seat (1) has a rubber contact pad (343).

6. A high-rigidity electric spindle bearing housing as described in claim 5, characterized in that, The bearing housing (1) and the fixed plate (31) are symmetrically provided with several bolt fixing buckles, and the sealing cover (5) is fixed to the fixed plate (31) by internal hex bolts.

7. A high-rigidity electric spindle bearing housing as described in claim 6, characterized in that, The cooling system (4) includes a cooling channel (41) arranged around the inside of the bearing housing (1) and a water circulation interface (42) arranged around the outside of the bearing housing (1).

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