A bearing seat for a mixing machine frame

By designing a structure including bearing seat, bearing cap, shaft sleeve and double row tapered roller bearing in the mixing frame, the problem of insufficient load bearing capacity of bearing seat in the prior art is solved, and the long cycle and stability of the mixing shaft are achieved , turn safely.

CN111255808BActive Publication Date: 2024-12-13JIANGSU XINHONGDA GROUP
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Patent Information

Application Number
CN202010267470.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-04-08
Publication Date
2024-12-13
Estimated Expiration
2040-04-08

AI Technical Summary

Technical Problem

When existing mixer frame bearing seats bear larger axial and radial loads, their service life is shortened, affecting the long cycle, safe and stable operation of the mixer.

Method used

A structure including bearing seat, bearing cap, shaft sleeve and double-row tapered roller bearing is designed. The bearing seat is fixed by bolts, and the shaft sleeve is fixed with the inner ring of the double-row tapered roller bearing, and the bearing is carried in axial and radial directions. Load, enhance the bidirectional load bearing capacity of the bearing seat.

Benefits of technology

Through the combination of the shaft sleeve and double-row tapered roller bearing, the load bearing capacity of the bearing seat is significantly improved, ensuring the long cycle, stable and safe rotation of the agitating shaft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a bearing seat of a mixer frame, comprising: a bearing seat, a bearing gland, a shaft sleeve and a double-row tapered roller bearing, wherein the top of the bearing seat is fixedly connected with the bearing gland by bolts, and the inner wall of the bottom of the bearing seat and the center of the inner wall of the top of the bearing gland are fixedly connected with the shaft sleeve by clamping. During the use of the bearing seat of the mixer frame, the present invention fixes the bearing seat to one side of the mixer frame by screws, and the mixing shaft and the shaft sleeve are fixedly connected by interference fit. The shaft sleeve is driven to rotate by the mixing shaft, and the shaft sleeve is fixedly connected to the inner ring of the double-row tapered roller bearing, so that the shaft sleeve rotates in the bearing seat through the double-row tapered roller bearing, and the axial and radial loads generated during the rotation of the mixing shaft are borne by the bearing seat, and the two-way load bearing capacity of the bearing seat is greatly improved by the combination of the shaft sleeve and the double-row tapered roller bearing, thereby ensuring the smooth, safe and stable long-term rotation of the mixing shaft.
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Description

Technical Field

[0001] The invention relates to the technical field of bearing seats, in particular to a bearing seat for a mixing machine frame. Background Art

[0002] The mixer frame is one of the indispensable parts of the mixing device in industrial production. During the operation of the mixer, due to the action of the mixing impeller, certain axial and radial loads will be generated. When the load is large, it must be borne by certain "parts" to avoid direct action on the reducer or other parts, thereby ensuring the long-term, safe and stable operation of the mixer.

[0003] "Single-pivot frame for stirring transmission device" HG21566-95 has clear provisions on it, especially the selection of bearings for its load-bearing components: a combination of two angular contact ball bearings is used, which is suitable for frames with a transmission shaft diameter of 30 to 160 mm.

[0004] 1. With the continuous innovation of production technology in the prior art, the scale of the corresponding mixer rack device is also expanding. At the same time, the volume of the single equipment has also changed dramatically. Therefore, there must be corresponding bearing seat equipment to meet the production process requirements. The technical parameters given in the original standard can no longer meet the needs of the corresponding design. The bearing seat corresponding to the rack with a transmission shaft of 30 to 160 mm in the prior art is subjected to greater axial and radial loads, and its service life is sharply shortened, which seriously affects the long-term, safe and stable operation of the mixer rack during use. Summary of the invention

[0005] The object of the present invention is to provide a bearing seat for a mixing machine frame to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bearing seat of a mixer frame, comprising: a bearing seat, a bearing gland, a sleeve and a double-row tapered roller bearing, wherein the top of the bearing seat is fixedly connected to the bearing gland by bolts, the inner wall of the bottom of the bearing seat and the center of the inner wall of the top of the bearing gland are fixedly connected to the sleeve by clamping, a bearing chamber is formed between the outer wall of the sleeve, the inner wall of the bearing gland and the inner wall of the bearing seat, the bottom of the bearing chamber is fixedly connected to the double-row tapered roller bearing by clamping, and the outer side of the connection part between the bottom of the bearing seat and the sleeve is fixedly connected by clamping A skeleton oil seal is fixedly connected, and a skeleton oil seal is fixedly connected to the outer side of the connection part between the top of the bearing gland and the sleeve by clipping. When in use, the bearing seat is fixed to one side of the mixer frame, and the mixing shaft and the sleeve are fixedly connected by interference fit. During the rotation of the mixing shaft, the mixing shaft drives the sleeve to rotate, and the sleeve is fixedly connected to the inner ring of the double-row tapered roller bearing, so that the sleeve rotates in the bearing seat through the double-row tapered roller bearing. The axial and radial loads generated during the rotation of the mixing shaft are borne by the bearing seat, thereby ensuring the smooth, safe and stable rotation of the mixing shaft.

[0007] Preferably, the bearing seat also includes: mounting and fixing holes and oil drain holes. The bearing seat flange is provided with mounting and fixing holes in an array at the four corners. The bottom side of the bearing seat is provided with oil drain holes corresponding to the bottom of the bearing chamber. The mounting and fixing holes are used for mounting and fixing the bearing seat. The oil drain holes are used for discharging old lubricating oil when replacing the lubricating oil inside the bearing seat, thereby facilitating the replacement of the lubricating oil.

[0008] Preferably, the bearing cover also includes: an oil filling hole. An oil filling hole is opened on one side of the top of the bearing cover corresponding to the top of the bearing chamber, which is used to add lubricating oil into the bearing seat to facilitate lubrication of the double-row tapered roller bearing, ensure smooth rotation of the bearing, and reduce bearing wear.

[0009] Preferably, the sleeve further includes: a locking nut and a stop washer, a stop washer is fixedly connected to the top surface of the inner ring of the double-row tapered roller bearing on the outer wall of the sleeve via a clip, and a locking nut is rotatably connected to the top of the stop washer on the outer wall of the sleeve via a thread, and the stop washer is tightly pressed against the top surface of the inner ring of the double-row tapered roller bearing by tightening the locking nut, thereby preventing the sleeve from rotating relative to the inner ring of the double-row tapered roller bearing and ensuring smooth rotation of the sleeve.

[0010] Preferably, the outer wall of the sleeve is stepped, the wall thickness of the contact part between the outer wall of the bottom of the sleeve and the inside of the bearing seat is greater than the wall thickness of the contact part between the sleeve and the double-row tapered roller bearing, the wall thickness of the contact part between the sleeve and the double-row tapered roller bearing is greater than the wall thickness of the contact part between the sleeve and the locking nut, and the wall thickness of the contact part between the sleeve and the locking nut is greater than the wall thickness of the contact part between the sleeve and the bearing cover, which is used to strengthen the strength of the sleeve so that the sleeve can bear a larger bidirectional load.

[0011] Preferably, a clamping block is integrally formed around the contact area between the inner wall of the bearing cover and the bearing seat, and the bottom of the bearing cover clamping block is in close contact with the top surface of the outer ring of the double-row tapered roller bearing, so that the outer ring of the double-row tapered roller bearing and the bearing seat are prevented from relative rotation by pressing the outer ring of the double-row tapered roller bearing.

[0012] Preferably, the inner wall of the bearing seat is fixedly connected to the outer wall of the outer ring of the double-row tapered roller bearing by interference fit, and the outer wall of the sleeve is fixedly connected to the outer wall of the inner ring of the double-row tapered roller bearing by interference fit.

[0013] Preferably, a sealing plug is fixedly connected to the oil drain hole via threads to prevent oil leakage during use of the bearing seat.

[0014] Preferably, an oil nozzle is fixedly connected to the oil filling hole via threads to facilitate oil filling.

[0015] Preferably, a sealing strip is fixedly connected to the connecting portion between the bearing seat and the bearing cover by snap-fitting, so as to seal the bearing seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes that during the use of the bearing seat of the mixer frame, the bearing seat is fixed to one side of the mixer frame by screws, and the mixer shaft and the sleeve are fixedly connected by interference fit. During the rotation of the mixer shaft, the sleeve is driven to rotate by the mixer shaft, and the sleeve is fixedly connected to the inner ring of the double-row tapered roller bearing, so that the sleeve rotates in the bearing seat through the double-row tapered roller bearing. The axial and radial loads generated during the rotation of the mixer shaft are borne by the bearing seat. Through the combination of the sleeve and the double-row tapered roller bearing, the bidirectional load-bearing capacity of the bearing seat is greatly improved, ensuring the smooth, safe and stable long-term rotation of the mixer shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional view of the overall main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall left-side structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the overall top view structure of the present invention;

[0021] Figure 4 It is a schematic cross-sectional view of the main structure of the shaft sleeve of the present invention;

[0022] Figure 5 It is a schematic cross-sectional view of the main structure of the bearing seat connection structure of the present invention.

[0023] In the figure: 1-bearing seat; 2-bearing pressure cover; 3-oil filling hole; 4-skeleton oil seal; 5-sleeve; 6-locking nut; 7-bearing chamber; 8-mounting fixing hole; 9-stop pad; 10-double row tapered roller bearing; 11-oil drain hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The present invention provides a technical solution: a bearing seat of a mixer frame, comprising: a bearing seat 1, a bearing cover 2, a sleeve 5 and a double-row tapered roller bearing 10, the top of the bearing seat 1 is fixedly connected with the bearing cover 2 by bolts, the inner wall of the bottom of the bearing seat 1 and the center of the inner wall of the top of the bearing cover 2 are fixedly connected with the sleeve 5 by clamping, a bearing chamber 7 is formed between the outer wall of the sleeve 5 and the inner wall of the bearing cover 2 and the inner wall of the bearing seat 1, the bottom of the bearing chamber 7 is fixedly connected with the double-row tapered roller bearing 10 by clamping, the outer side of the connection between the bottom of the bearing seat 1 and the sleeve 5 is fixedly connected with a skeleton oil seal 4 by clamping, the outer side of the connection between the top of the bearing cover 2 and the sleeve 5 is fixedly connected with a skeleton oil seal 4 by clamping, when in use, the bearing seat 1 is fixed to one side of the mixer frame, and the stirring shaft, for example, a stirring shaft with a diameter of 160 mm, is fixedly connected with the double-row tapered roller bearing 10. E), the stirring shaft is fixedly connected with the sleeve 5 by interference fit. During the rotation of the stirring shaft, the sleeve 5 is driven to rotate by the stirring shaft. The sleeve 5 is fixedly connected to the inner ring of the double-row tapered roller bearing 10, so that the sleeve 5 rotates in the bearing seat 1 through the double-row tapered roller bearing 10. The axial and radial loads generated during the rotation of the stirring shaft are borne by the bearing seat 1, ensuring the smooth, safe and stable rotation of the stirring shaft.

[0026] The bearing seat 1 also includes: mounting and fixing holes 8 and oil drain holes 11. The four corner areas of the flange of the bearing seat 1 are provided with mounting and fixing holes in an array. An oil drain hole 11 is provided on one side of the bottom of the bearing seat 1 corresponding to the lower part of the bearing chamber 7. The mounting and fixing holes are used for the installation and fixing of the bearing seat 1. The oil drain hole 11 is used for the discharge of old lubricating oil when the lubricating oil inside the bearing seat 1 is replaced, so as to facilitate the replacement of the lubricating oil.

[0027] The bearing cover 2 also includes: an oil filling hole 3. An oil filling hole 3 is opened on one side of the top of the bearing cover 2 corresponding to the top of the bearing chamber 7, which is used to add lubricating oil into the bearing seat 1 to facilitate the lubrication of the double-row tapered roller bearing 10, ensure the smooth rotation of the bearing, and reduce the wear of the bearing.

[0028] The sleeve 5 also includes: a locking nut 6 and a stop washer 9. The stop washer 9 is fixedly connected to the top surface of the inner ring of the double-row tapered roller bearing 10 on the outer wall of the sleeve 5 by clipping. The locking nut 6 is rotatably connected to the top of the stop washer 9 on the outer wall of the sleeve 5 by threading. By tightening the locking nut 6, the stop washer 9 is tightly pressed against the top surface of the inner ring of the double-row tapered roller bearing 10 to prevent the sleeve 5 from rotating relative to the inner ring of the double-row tapered roller bearing 10, thereby ensuring smooth rotation of the sleeve 5.

[0029] The outer wall of the sleeve 5 is stepped, the wall thickness of the contact part between the outer wall of the bottom of the sleeve 5 and the inside of the bearing seat 1 is greater than the wall thickness of the contact part between the sleeve 5 and the double-row tapered roller bearing 10, the wall thickness of the contact part between the sleeve 5 and the double-row tapered roller bearing 10 is greater than the wall thickness of the contact part between the sleeve 5 and the locking nut 6, and the wall thickness of the contact part between the sleeve 5 and the locking nut 6 is greater than the wall thickness of the contact part between the sleeve 5 and the bearing cover 2, which is used to strengthen the strength of the sleeve 5 so that the sleeve 5 can bear a larger bidirectional load. A block is integrally formed around the contact part between the inner wall of the bearing cover 2 and the bearing seat 1, and the bottom of the block of the bearing cover 2 is connected to the top surface of the outer ring of the double-row tapered roller bearing 10 Tight contact, with the outer ring of the double-row tapered roller bearing 10 pressed to prevent the outer ring of the double-row tapered roller bearing 10 from rotating relative to the bearing seat 1, the inner wall of the bearing seat 1 is fixedly connected to the outer wall of the outer ring of the double-row tapered roller bearing 10 by interference fit, the outer wall of the sleeve 5 is fixedly connected to the outer wall of the inner ring of the double-row tapered roller bearing 10 by interference fit, the oil drain hole 11 is fixedly connected with a sealing plug by thread to prevent oil leakage during the use of the bearing seat 1, the oil filling hole 3 is fixedly connected with an oil nozzle by thread to facilitate oil filling, the connection between the bearing seat 1 and the bearing cover 2 is fixedly connected with a sealing strip by snap-fit, which is used to seal the bearing seat 1.

[0030] Working principle: During use, during the use of the bearing seat of the mixer frame, the bearing seat 1 is fixed to one side of the mixer frame by screws, and the mixing shaft and the sleeve 5 are fixedly connected by interference fit. During the rotation of the mixing shaft, the sleeve 5 is driven to rotate by the mixing shaft, and the sleeve 5 is fixedly connected to the inner ring of the double-row tapered roller bearing 10, so that the sleeve 5 rotates in the bearing seat 1 through the double-row tapered roller bearing 10. The axial and radial loads generated during the rotation of the mixing shaft are borne by the bearing seat 1. Through the combination of the sleeve and the double-row tapered roller bearing 10, the bidirectional load-bearing capacity of the bearing seat 1 is greatly improved, ensuring the smooth, safe and stable long-term rotation of the mixing shaft.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing seat for a mixing machine frame, It is characterized in that include: Bearing seat (1); Bearing gland (2); Bushing (5); A double-row tapered roller bearing (10), wherein the top of the bearing seat (1) is fixedly connected to a bearing cover (2) by bolts, a shaft sleeve (5) is fixedly connected to the inner wall of the bottom of the bearing seat (1) and the center of the inner wall of the top of the bearing cover (2) by snap-fitting, a bearing chamber (7) is formed between the outer wall of the shaft sleeve (5) and the inner wall of the bearing cover (2) and the inner wall of the bearing seat (1), the bottom of the bearing chamber (7) is fixedly connected to the double-row tapered roller bearing (10) by snap-fitting, a skeleton oil seal (4) is fixedly connected to the outer side of the connection portion between the bottom of the bearing seat (1) and the shaft sleeve (5) by snap-fitting, and a skeleton oil seal (4) is fixedly connected to the outer side of the connection portion between the top of the bearing cover (2) and the shaft sleeve (5) by snap-fitting; Lock nut (6); A stop pad (9), wherein the stop pad (9) is fixedly connected to the top surface of the inner ring of the double-row tapered roller bearing (10) on the outer wall of the shaft sleeve (5) by means of a clamping connection, and a locking nut (6) is rotatably connected to the upper side of the stop pad (9) on the outer wall of the shaft sleeve (5) by means of a thread; The outer wall of the shaft sleeve (5) is in a step shape, the wall thickness of the contact portion between the bottom outer wall of the shaft sleeve (5) and the inside of the bearing seat (1) is greater than the wall thickness of the contact portion between the shaft sleeve (5) and the double-row tapered roller bearing (10), the wall thickness of the contact portion between the shaft sleeve (5) and the double-row tapered roller bearing (10) is greater than the wall thickness of the contact portion between the shaft sleeve (5) and the locking nut (6), and the wall thickness of the contact portion between the shaft sleeve (5) and the locking nut (6) is greater than the wall thickness of the contact portion between the shaft sleeve (5) and the bearing gland (2).

2. A mixer frame bearing seat according to claim 1, Features: The bearing seat (1) further comprises: Mounting fixing holes (8); An oil drain hole (11), wherein an array of mounting holes is provided at the four corners of the flange of the bearing seat (1), and an oil drain hole (11) is provided at one side of the bottom of the bearing seat (1) corresponding to the lower side of the bearing chamber (7).

3. A mixer frame bearing seat according to claim 1, Features: The bearing gland (2) further comprises: An oil filling hole (3) is provided on one side of the top of the bearing gland (2) corresponding to the upper side of the bearing chamber (7).

4. A mixer frame bearing seat according to claim 1, Features: A clamping block is integrally formed around the contact area between the inner wall of the bearing cover (2) and the bearing seat (1), and the bottom of the clamping block of the bearing cover (2) is in close contact with the top surface of the outer ring of the double-row tapered roller bearing (10).

5. A mixer frame bearing seat according to claim 1, Features: The inner wall of the bearing seat (1) is fixedly connected to the outer wall of the outer ring of the double-row tapered roller bearing (10) through an interference fit, and the outer wall of the shaft sleeve (5) is fixedly connected to the outer wall of the inner ring of the double-row tapered roller bearing (10) through an interference fit.

6. A mixer frame bearing seat according to claim 2, Features: A sealing plug is fixedly connected to the oil drain hole (11) via threads.

7. A mixer frame bearing seat according to claim 3, Features: The oil filling hole (3) is fixedly connected with an oil nozzle via a thread.

8. A mixer frame bearing seat according to claim 1, Features: A sealing strip is fixedly connected to the connection portion between the bearing seat (1) and the bearing cover (2) by means of a snap connection.