Roller way bearing mounting structure for shot blasting machine

Abstract

The utility model discloses a roller way bearing mounting structure for a shot blasting machine. According to the technical scheme, the roller way bearing mounting structure comprises a mounting plate, the first sealing device is arranged on one side, close to the inner cavity of the shot blasting machine, of the mounting plate and is used for sealing one end of the mounting hole; the second sealing device is arranged on one side, far away from the inner cavity of the shot blasting machine, of the mounting plate and is used for sealing the other end of the mounting hole; the annular groove is formed in the hole wall of the mounting hole and surrounds the mounting hole, and the annular groove is located between the first sealing device and the second sealing device; a slag discharge hole and a fixed cover; through the arrangement of the first sealing device and the second sealing device, shots and impurities can be prevented from entering the bearing, through the arrangement of the annular groove and the slag discharging hole, the shots and the impurities entering the annular groove can be discharged into the shot blasting machine through the slag discharging hole, and the shots and the impurities are not prone to entering the bearing to damage the bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, and more specifically, to a roller bearing installation structure for shot blasting machines. Background Art

[0002] Shot blasting machines are widely used in the field of industrial manufacturing. Their function is to clean the surface of the workpiece to facilitate the subsequent processing, increase the residual stress on the surface of the part, and improve the fatigue life of the product. Shot blasting machines use high-speed flying projectiles to impact and cut the surface of the workpiece to achieve the processing purpose.

[0003] The traditional through-type shot blasting machine is a cleaning equipment that transports workpieces for cleaning by rotating rollers. Bearings for installing roller shafts are provided on both sides of the rollers. However, there is no effective sealing device at the bearing installation in the shot blasting machine body, which makes it very easy for projectiles and impurities to enter the bearings and cause damage to the bearings. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a roller bearing mounting structure for a shot blasting machine, which can prevent projectiles and impurities from entering the bearing through the arrangement of a first sealing device and a second sealing device, and through the arrangement of annular grooves and slag discharge holes, the projectiles and impurities entering the annular grooves can be discharged into the shot blasting machine through the slag discharge holes, making it difficult for projectiles and impurities to enter the bearing and cause damage to the bearing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller bearing mounting structure for a shot blasting machine, comprising a mounting plate, the mounting plate is arranged perpendicular to the axis of the roller shaft, a mounting hole for the roller shaft end to pass through is arranged on the mounting plate, and the mounting plate is arranged as a side wall of the shot blasting machine;

[0006] A first sealing device, which is arranged on a side of the mounting plate close to the inner cavity of the shot blasting machine to seal one end of the mounting hole;

[0007] A second sealing device, the second sealing device is arranged on the side of the mounting plate away from the inner cavity of the shot blasting machine to seal the other end of the mounting hole;

[0008] An annular groove, which is arranged on the hole wall of the mounting hole and surrounds the mounting hole, and is located between the first sealing device and the second sealing device;

[0009] A slag discharge hole, wherein the slag discharge hole is arranged at the bottom of the annular groove, one end of the slag discharge hole is communicated with the bottom of the annular groove, and the other end of the slag discharge hole extends downward and penetrates the mounting plate toward a side close to the inner cavity of the shot blasting machine to be communicated with the inner cavity of the shot blasting machine;

[0010] and a fixed cover, which is fixedly connected to a side of the mounting plate away from the first sealing device and covers the second sealing device;

[0011] The roller shaft passes through the side wall of the fixed cover away from the mounting plate, and the bearing on the roller shaft is also arranged on the side wall of the fixed cover away from the mounting plate so that the roller shaft is rotatably connected to the fixed cover.

[0012] The utility model is further configured as follows: the slag discharge hole includes a vertical section and an inclined section, the vertical section is vertically arranged at the bottom of the annular groove and is connected to the annular groove, one end of the top of the inclined section is connected to one end of the bottom of the vertical section, and the bottom end of the inclined section is inclined toward a side close to the inner cavity of the shot blasting machine.

[0013] The utility model is further configured as follows: a flexible curtain is fixedly connected to the mounting plate, a top side of the flexible curtain is fixedly connected to the mounting plate, a top side of the flexible curtain is located above one end of the bottom of the inclined section, and the flexible curtain blocks the bottom end of the inclined section.

[0014] The utility model is further configured as follows: the first sealing device includes a fixing portion, the fixing portion is sleeved outside the roller shaft, the fixing portion is fixedly connected to the side of the fixing plate close to the inner cavity of the shot blasting machine, and the diameter of the fixing portion is gradually reduced from the direction close to the fixing plate to the direction away from the fixing plate so that the cross section of the fixing portion is arranged in an arc shape;

[0015] and a rotating part, wherein the rotating part is sleeved outside the roller shaft and fixedly connected to the roller shaft, and the diameter of the rotating part gradually increases from a side away from the mounting plate to a side close to the mounting plate so that the cross section of the rotating part is arranged in an arc shape;

[0016] A slot surrounding the rotating part is arranged on the side of the outer arm of the rotating part close to the mounting plate, and the fixed part is inserted into the slot on the side away from the mounting plate, and the outer wall of the fixed part and the outer wall of the rotating part form a smoothly transitioned arc surface.

[0017] The utility model is further configured as follows: the second sealing device includes a fixing assembly, and the fixing assembly is fixedly connected to the hole wall of the mounting hole;

[0018] and a rotating assembly, wherein the rotating assembly is fixedly connected to the roller shaft;

[0019] The fixing assembly comprises a fixing sleeve, which is arranged around the roller shaft and fixedly connected to the hole wall of the mounting hole, and the fixing sleeve is located on a side of the annular groove away from the first sealing device;

[0020] The rotating assembly comprises a rotating sleeve, which is arranged around the fixed sleeve and fixedly connected to the outside of the roller shaft;

[0021] A sealing groove which surrounds the rotating sleeve is arranged outside the rotating sleeve, and a sealing ring which matches with the sealing groove is fixedly connected inside the fixed sleeve.

[0022] The utility model is further configured as follows: the fixing assembly further comprises a fixing ring, the fixing ring being fixedly connected to an end of the fixing sleeve away from the first sealing device and being attached to a side of the mounting plate away from the first sealing device;

[0023] The rotating assembly further comprises a rotating ring, which is fixedly connected to an end of the rotating sleeve away from the first sealing device, and is located on a side of the fixed ring away from the mounting plate;

[0024] A plurality of annular sealing pads are fixedly connected to the sides of the rotating ring and the fixed ring that are close to each other. The plurality of sealing pads on the rotating ring and the plurality of sealing pads on the fixed ring are staggeredly arranged outward from the axis of the roller shaft.

[0025] The utility model is further configured as follows: the fixing assembly also includes a limiting ring, which is fixedly connected to one end of the fixing ring close to the first sealing device, and the limiting ring is fitted on the groove wall of the annular groove close to the limiting ring.

[0026] In summary, compared with the prior art, the utility model has the following beneficial effects: the utility model can prevent the projectiles and impurities from entering the bearing through the arrangement of the first sealing device and the second sealing device, and through the arrangement of the annular groove and the slag discharge hole, the projectiles and impurities entering the annular groove can be discharged into the shot blasting machine through the slag discharge hole, so that the projectiles and impurities are not easy to enter the bearing and cause damage to the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment;

[0028] Figure 2 is a cross-sectional view of the overall structure of the embodiment;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0030] Figure 4 for Figure 2 An enlarged schematic diagram of part B;

[0031] Figure 5 2 is a cross-sectional view of a mounting plate of an embodiment.

[0032] In the figure: 1. roller shaft; 2. mounting plate; 21. mounting hole; 22. annular groove; 23. slag discharge hole; 231. vertical section; 232. inclined section; 3. first sealing device; 31. rotating part; 32. fixed part; 321. slot; 4. second sealing device; 41. fixed assembly; 411. fixed sleeve; 412. sealing ring; 413. limiting ring; 414. fixed ring; 42. rotating assembly; 421. rotating sleeve; 422. sealing groove; 423. rotating ring; 43. sealing pad; 5. fixed cover; 6. curtain. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0034] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0035] Embodiment: A roller bearing installation structure for a shot blasting machine, see the attached Figure 1 -Attached Figure 5 , comprising a mounting plate 2, a first sealing device 3, a second sealing device 4, an annular groove 22, a slag discharge hole 23 and a fixing cover 5, wherein the mounting plate 2 is arranged perpendicular to the axis of the roller shaft 1, and a mounting hole 21 for the end of the roller shaft 1 to pass through is arranged on the mounting plate 2, and the mounting plate 2 is arranged as a side wall of the shot blasting machine; the first sealing device 3 is arranged on the side of the mounting plate 2 close to the inner cavity of the shot blasting machine to seal one end of the mounting hole 21; the second sealing device 4 is arranged on the side of the mounting plate 2 away from the inner cavity of the shot blasting machine to seal the other end of the mounting hole 21; the annular groove 22 is arranged on the hole wall of the mounting hole 21 and surrounds the mounting hole 21 The annular groove 22 is arranged between the first sealing device 3 and the second sealing device 4; the slag discharge hole 23 is arranged at the bottom of the annular groove 22, one end of the slag discharge hole 23 is communicated with the bottom of the annular groove 22, and the other end extends downward and passes through the mounting plate 2 to the side close to the inner cavity of the shot blasting machine to be communicated with the inner cavity of the shot blasting machine; the fixed cover 5 is fixedly connected to the side of the mounting plate 2 away from the first sealing device 3 and the second sealing device 4 is arranged inside; the roller shaft 1 passes through the side wall of the fixed cover 5 away from the mounting plate 2, and the bearing on the roller shaft 1 is also arranged on the side wall of the fixed cover 5 away from the mounting plate 2 so that the roller shaft 1 is rotatably connected to the fixed cover 5.

[0036] When the shot blasting machine is working, the projectiles and dust are located on the side of the mounting plate 2 close to the inner cavity of the shot blasting machine, and the bearing is located on the side of the mounting plate 2 away from the inner cavity of the shot blasting machine. Under the action of the first sealing device 3 and the second sealing device 4, the projectiles and dust can be prevented from entering the installation place of the bearing outward, and through the setting of the annular groove 22 and the slag discharge hole 23, the projectiles and dust passing through the first sealing device 3 are easy to fall to the bottom of the annular groove 22 under the action of their own gravity and are discharged into the inner cavity of the shot blasting machine through the slag discharge hole 23. Through the joint action of the first sealing device 3, the second sealing device 4, the annular groove 22 and the slag discharge hole 23, the projectiles and dust are not easy to enter the bearing and cause damage to the bearing.

[0037] Specifically, the slag discharge hole 23 includes a vertical section 231 and an inclined section 232. The vertical section 231 is vertically arranged at the bottom of the annular groove 22 and communicates with the annular groove 22. The top end of the inclined section 232 is communicated with the bottom end of the vertical section 231. The bottom end of the inclined section 232 is inclined toward the side close to the inner cavity of the shot blasting machine. Through the arrangement of the vertical section 231 and the inclined section 232, the projectiles and dust entering the bottom of the annular groove 22 can be easily discharged through the slag discharge hole 23.

[0038] Specifically, a flexible curtain 6 is fixedly connected to the mounting plate 2, and one side of the top of the flexible curtain 6 is fixedly connected to the mounting plate 2. One side of the top of the flexible curtain 6 is located above one end of the bottom of the inclined section 232, and the flexible curtain 6 blocks the bottom end of the inclined section 232. Through the provision of the curtain 6, the slag discharge hole 23 can smoothly discharge the pellets and dust to the outside, and the pellets and dust are not easy to reversely enter the slag discharge hole 23.

[0039] Specifically, the first sealing device 3 includes a fixed portion 32 and a rotating portion 31, wherein the fixed portion 32 is sleeved outside the roller shaft 1, and the fixed portion 32 is fixedly connected to the side of the mounting plate 2 close to the inner cavity of the shot blasting machine on the side close to the mounting plate 2, and the diameter of the fixed portion 32 gradually decreases from the direction close to the mounting plate 2 to the direction away from the mounting plate 2 so that the cross-section of the fixed portion 32 is arranged in an arc shape; the rotating portion 31 is sleeved outside the roller shaft 1 and fixedly connected to the roller shaft 1, and the diameter of the rotating portion 31 gradually increases from the side away from the mounting plate 2 to the side close to the mounting plate 2 so that the cross-section of the rotating portion 31 is arranged in an arc shape; a groove 321 arranged around the rotating portion 31 is provided on the side of the outer arm of the rotating portion 31 close to the mounting plate 2, and the fixed portion 32 is inserted into the groove 321 on the side away from the mounting plate 2, and the outer wall of the fixed portion 32 and the outer wall of the rotating portion 31 form a smoothly transitioned arc surface.

[0040] A complete and smoothly transitional arc surface is formed on the outer sides of the rotating part 31 and the fixed part 32, so that the projectiles and dust are not easily accumulated on the rotating part 31 and the fixed part 32, and when the projectiles hit the rotating part 31 and the fixed part 32, the projectiles can also be ejected by the action of the arc surface, so that the projectiles and dust are not easily passed through between the rotating part 31 and the fixed part 32.

[0041] Specifically, the second sealing device 4 includes a fixed component 41 and a rotating component 42, wherein the fixed component 41 is fixedly connected to the hole wall of the mounting hole 21; the rotating component 42 is fixedly connected to the roller shaft 1; the fixed component 41 includes a fixed sleeve 411, which is arranged around the roller shaft 1 and fixedly connected to the hole wall of the mounting hole 21, and the fixed sleeve 411 is located on the side of the annular groove 22 away from the first sealing device 3; the rotating component 42 includes a rotating sleeve 421, which is arranged around the fixed sleeve 411, and the rotating sleeve 421 is fixedly connected to the outside of the roller shaft 1; a sealing groove 422 arranged around the rotating sleeve 421 is arranged outside the rotating sleeve 421, and a sealing ring 412 matching the sealing groove 422 is fixedly connected inside the fixed sleeve 411.

[0042] The fixed assembly 41 also includes a fixed ring 414, which is fixedly connected to the end of the fixed sleeve 411 away from the first sealing device 3 and is attached to the side of the mounting plate 2 away from the first sealing device 3; the rotating assembly 42 also includes a rotating ring 423, which is fixedly connected to the end of the rotating sleeve 421 away from the first sealing device 3, and the rotating ring 423 is located on the side of the fixed ring 414 away from the mounting plate 2; a plurality of annular sealing gaskets 43 are fixedly connected to the sides of the rotating ring 423 and the fixed ring 414 that are close to each other, and the multiple sealing gaskets 43 on the rotating ring 423 and the multiple sealing gaskets 43 on the fixed ring 414 are staggeredly arranged outward from the axis of the roller shaft 1.

[0043] Specifically, the fixing assembly 41 further includes a limiting ring 413 , which is fixedly connected to one end of the fixing ring 414 close to the first sealing device 3 , and the limiting ring 413 is attached to the groove wall of the annular groove 22 close to the limiting ring 413 .

[0044] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A roller bearing installation structure for a shot blasting machine, characterized in that: The mounting plate (2) is arranged perpendicular to the axis of the roller shaft (1), a mounting hole (21) is arranged on the mounting plate (2) for the end of the roller shaft (1) to pass through, and the mounting plate (2) is arranged as a side wall of the shot blasting machine; A first sealing device (3), the first sealing device (3) being arranged on a side of the mounting plate (2) close to the inner cavity of the shot blasting machine and used for sealing one end of the mounting hole (21); A second sealing device (4), the second sealing device (4) being arranged on a side of the mounting plate (2) away from the inner cavity of the shot blasting machine and used for sealing the other end of the mounting hole (21); an annular groove (22), the annular groove (22) being arranged on the hole wall of the mounting hole (21) and surrounding the mounting hole (21), the annular groove (22) being located between the first sealing device (3) and the second sealing device (4); A slag discharge hole (23), wherein the slag discharge hole (23) is arranged at the bottom of the annular groove (22), one end of the slag discharge hole (23) is connected to the bottom of the annular groove (22), and the other end of the slag discharge hole (23) extends downward and passes through the mounting plate (2) toward a side close to the inner cavity of the shot blasting machine to be connected to the inner cavity of the shot blasting machine; and a fixed cover (5), the fixed cover (5) being fixedly connected to a side of the mounting plate (2) away from the first sealing device (3) and housing the second sealing device (4); The roller shaft (1) passes through the side wall of the fixed cover (5) away from the mounting plate (2), and the bearing on the roller shaft (1) is also arranged on the side wall of the fixed cover (5) away from the mounting plate (2) so that the roller shaft (1) is rotatably connected to the fixed cover (5).

2. The roller bearing installation structure for a shot blasting machine according to claim 1, characterized in that: The slag discharge hole (23) comprises a vertical section (231) and an inclined section (232); the vertical section (231) is vertically arranged at the bottom of the annular groove (22) and is connected to the annular groove (22); a top end of the inclined section (232) is connected to a bottom end of the vertical section (231); and a bottom end of the inclined section (232) is inclined toward a side close to the inner cavity of the shot blasting machine.

3. The roller bearing installation structure for a shot blasting machine according to claim 2, characterized in that: A flexible curtain (6) is fixedly connected to the mounting plate (2); one side of the top of the flexible curtain (6) is fixedly connected to the mounting plate (2); one side of the top of the flexible curtain (6) is located above the bottom end of the inclined section (232); the flexible curtain (6) blocks the bottom end of the inclined section (232).

4. The roller bearing installation structure for a shot blasting machine according to claim 3, characterized in that: The first sealing device (3) comprises a fixing portion (32), the fixing portion (32) being sleeved outside the roller shaft (1), the fixing portion (32) being fixedly connected to a side of the fixing plate (2) close to the inner cavity of the shot blasting machine, the diameter of the fixing portion (32) gradually decreasing from a direction close to the fixing plate (2) to a direction away from the fixing plate (2) so that the cross section of the fixing portion (32) is arranged in an arc shape; and a rotating portion (31), wherein the rotating portion (31) is sleeved outside the roller shaft (1) and is fixedly connected to the roller shaft (1), and the diameter of the rotating portion (31) gradually increases from a side away from the mounting plate (2) to a side close to the mounting plate (2) so that the cross section of the rotating portion (31) is arranged in an arc shape; A clamping groove (321) arranged around the rotating part (31) is provided on the side of the outer arm of the rotating part (31) close to the mounting plate (2), and the side of the fixed part (32) away from the mounting plate (2) is clamped into the clamping groove (321), and the outer wall of the fixed part (32) and the outer wall of the rotating part (31) form a smoothly transitioned arc surface.

5. The roller bearing installation structure for a shot blasting machine according to claim 4, characterized in that: The second sealing device (4) comprises a fixing component (41), wherein the fixing component (41) is fixedly connected to the hole wall of the mounting hole (21); and a rotating assembly (42), wherein the rotating assembly (42) is fixedly connected to the roller shaft (1); The fixing assembly (41) comprises a fixing sleeve (411), the fixing sleeve (411) being arranged around the roller shaft (1) and fixedly connected to the hole wall of the mounting hole (21), the fixing sleeve (411) being located on a side of the annular groove (22) away from the first sealing device (3); The rotating assembly (42) comprises a rotating sleeve (421), the rotating sleeve (421) is arranged around the fixed sleeve (411), and the rotating sleeve (421) is fixedly connected to the outside of the roller shaft (1); A sealing groove (422) is arranged outside the rotating sleeve (421) and surrounds the rotating sleeve (421), and a sealing ring (412) matching with the sealing groove (422) is fixedly connected inside the fixed sleeve (411).

6. The roller bearing installation structure for a shot blasting machine according to claim 5, characterized in that: The fixing assembly (41) further comprises a fixing ring (414), wherein the fixing ring (414) is fixedly connected to an end of the fixing sleeve (411) away from the first sealing device (3) and is attached to a side of the mounting plate (2) away from the first sealing device (3); The rotating assembly (42) further comprises a rotating ring (423), wherein the rotating ring (423) is fixedly connected to an end of the rotating sleeve (421) away from the first sealing device (3), and the rotating ring (423) is located on a side of the fixed ring (414) away from the mounting plate (2); A plurality of annular sealing pads (43) are fixedly connected to the sides of the rotating ring (423) and the fixed ring (414) that are close to each other, and the plurality of sealing pads (43) on the rotating ring (423) and the plurality of sealing pads (43) on the fixed ring (414) are arranged in a staggered manner outward from the axis of the roller shaft (1).

7. The roller bearing installation structure for a shot blasting machine according to claim 6, characterized in that: The fixing assembly (41) further comprises a limiting ring (413), which is fixedly connected to one end of the fixing ring (414) close to the first sealing device (3), and the limiting ring (413) is fitted on the groove wall of the annular groove (22) close to the limiting ring (413).

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