Material taking machine bucket wheel bearing seat sealing protective cover convenient to disassemble and assemble

Abstract

The utility model discloses a material taking machine bucket wheel bearing seat sealing protective cover convenient to disassemble and assemble, belongs to the technical field of material taking machine equipment, and is used for protecting a material taking machine bucket wheel bearing and a bearing seat. According to the technical scheme, a cover body is a rectangular box body, the lower end of the cover body is fixedly connected with a base, two opposite side walls of the cover body are respectively provided with an inverted-U-shaped bucket wheel shaft installation groove, a shaft rod of a bucket wheel shaft is embedded in the upper portion of each bucket wheel shaft installation groove, the lower portions of the two bucket wheel shaft installation grooves are respectively sealed by two sealing plates, and a sealing shaft sleeve is composed of two semicircular shaft sleeves. The two ends of the two semicircular shaft sleeves are connected into circular sealing shaft sleeves through the shaft sleeve connecting bolts, and the two sealing shaft sleeves are arranged on the bucket wheel shafts on the outer sides of the bucket wheel shaft mounting grooves in the two sides of the cover body in a sleeving mode respectively. The bucket wheel bearing seat is simple and firm in structure, convenient to install and good in sealing performance, coal particles and coal dust brought by a bucket wheel during material taking of the material taking machine can be isolated outside, the coal particles and the coal dust are prevented from entering the bucket wheel bearing seat and damaging a bucket wheel shaft and a bearing, and normal operation of a bucket wheel mechanism of the material taking machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to a dismountable sealing guard for a bucket wheel bearing seat of a reclaimer, belonging to the technical field of reclaimer equipment. Background Art

[0002] A reclaimer is a high-efficiency professional reclaiming device applied to bulk cargo port terminals, power plants and other stockyards. Its working process is to use the rotation of the bucket wheel mechanism to extract materials onto the cantilever conveyor belt of the reclaimer. The cantilever belt conveyor continuously operates to transport the materials through the central funnel to the ground conveyor belt system. The continuous and trouble-free operation of the reclaimer is the key to ensuring the operation volume of the reclaimer.

[0003] The bucket wheel mechanism of the reclaimer consists of a driving motor, a bucket wheel shaft, a bucket wheel bearing seat and a bucket wheel. During the reclaiming operation, the bucket wheel cuts the coal stockpile and transfers the materials to the cantilever conveyor belt by rotating around the bucket wheel shaft. Due to such violent movements and collisions of the coal materials, a large amount of coal dust particles will be suspended in the air environment of the bucket wheel bearing seat. Moreover, when the bucket wheel rotates upwards, the coal blocks at the edge of the bucket wheel will also fall down and hit the bucket wheel bearing seat. Under the combined action of these two situations, the sealing structure of the bucket wheel bearing seat is extremely easy to be damaged, resulting in impurities such as coal dust entering the bucket wheel bearing seat, causing poor lubrication of the bucket wheel shaft, and further leading to damage of the bucket wheel shaft and the bucket wheel bearing seat under the heavy load of the reclaiming operation, making the reclaimer unable to continue the reclaiming operation. At the same time, additional equipment damage will increase the enterprise's maintenance cost.

[0004] At present, the bucket wheel bearing seat of the reclaimer is directly exposed to the air, and there is no protection device to shield the bucket wheel bearing seat, resulting in extremely easy damage to the labyrinth of the bucket wheel bearing seat. Coal dust and moisture enter the bearing interior, causing bearing damage. In the original design, the protection problem of the bearing seat was not considered, and only the end cover labyrinth of the bearing seat itself was relied on for sealing protection. Therefore, it is very necessary to install a protection device for the bucket wheel bearing seat of the reclaimer. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a dismountable sealing guard for a bucket wheel bearing seat of a reclaimer. This protection device is suitable for the on-site operation environment, can isolate the coal particles and coal dust brought up by the bucket wheel during the reclaiming operation of the reclaimer, prevent them from entering the interior of the bucket wheel bearing seat, damage the bucket wheel shaft and the bearing, and ensure the normal operation of the bucket wheel mechanism of the reclaimer.

[0006] The technical solution to solve the above problems is:

[0007] A seal guard for the bucket wheel bearing seat of a material taking machine that is convenient for disassembly and assembly, which includes a cover body, a base, a seal bushing, a seal plate, base fixing bolts, bushing connection bolts, and seal plate fixing bolts. The cover body is a rectangular box body, and the base is a steel plate frame structure. The lower end of the cover body is fixedly connected to the base through the base fixing bolts. The opposite two side walls of the cover body are perpendicular to the rod body of the bucket wheel shaft. There are inverted U-shaped bucket wheel shaft installation grooves at the lower parts of these two side walls. The shaft rod of the bucket wheel shaft is embedded in the upper part of the bucket wheel shaft installation groove. The lower parts of the two bucket wheel shaft installation grooves are respectively closed by two seal plates. The seal bushing is composed of two semi-circular bushings. The two ends of the two semi-circular bushings face each other, and the bushing connection bolts connect the two ends of the two semi-circular bushings into a circular seal bushing. The inner diameter of the seal bushing matches the diameter of the bucket wheel shaft. The two seal bushings are respectively sleeved on the bucket wheel shafts outside the bucket wheel shaft installation grooves on both sides of the cover body.

[0008] For the above-mentioned seal guard for the bucket wheel bearing seat of a material taking machine that is convenient for disassembly and assembly, the top surface of the cover body consists of two inclined surfaces to form a spire structure. There is a maintenance opening on one inclined surface of the top surface. A maintenance cover plate covers the maintenance opening. There are installation screw holes at the edge of the maintenance opening, and there are installation holes around the maintenance cover plate corresponding to the installation screw holes of the maintenance opening. The maintenance cover plate bolts fixedly connect the maintenance cover plate to the installation screw holes of the maintenance opening.

[0009] For the above-mentioned seal guard for the bucket wheel bearing seat of a material taking machine that is convenient for disassembly and assembly, the radian of the upper arc of the inverted U-shaped bucket wheel installation grooves on both side walls of the cover body matches the diameter of the bucket wheel shaft. The rod body of the bucket wheel shaft and the upper arc of the bucket wheel installation groove are in sliding fit. There are base connection holes at the lower ends of the opposite two side walls of the cover body. Base fixing plates are respectively welded on the upper surfaces of the bases inside the base connection holes. There are screw holes on the base fixing plates corresponding to the base connection holes on both side walls of the cover body respectively. The base fixing bolts connect the side walls of the cover body to the screw holes of the base fixing plates through the base connection holes.

[0010] For the above-mentioned seal guard for the bucket wheel bearing seat of a material taking machine that is convenient for disassembly and assembly, there are multiple seal plate installation holes along the length direction at the lower edges of the two bucket wheel shaft installation grooves respectively. There are multiple installation holes on both sides of the two seal plates corresponding to the multiple seal plate installation holes at the edges of the bucket wheel shaft installation grooves. The seal plate fixing bolts respectively fix the two sides of the two seal plates to the two side edges of the two bucket wheel shaft installation grooves.

[0011] The above-mentioned seal guard for the bucket wheel bearing seat of the material taking machine that is convenient for disassembly and assembly. The two semi-circular shaft sleeves of the seal shaft sleeve are respectively composed of a sleeve, a coal baffle, and a labyrinth plate. The sleeve is semi-circular, and the inner diameter of the semi-circular sleeve matches the diameter of the bucket wheel shaft. The semi-circular sleeve is sleeved on the outer wall of the bucket wheel shaft. There are sleeve connecting plates at both ends of the semi-circular sleeve, and there are opposite sleeve connecting holes on the sleeve connecting plates of the two semi-circular sleeves. The sleeve connecting bolts fixedly connect the sleeve connecting plates of the two semi-circular sleeves through the sleeve connecting holes. The coal baffle is a semi-circular ring plate, and the lower end of the coal baffle is vertically connected to the middle of the barrel wall of the sleeve. The labyrinth plate is a semi-circular ring plate, and the lower end of the labyrinth plate is vertically connected to the rear end of the barrel wall of the sleeve. The upper end of the labyrinth plate has a right-angle bending edge. The outer diameters of the coal baffle and the labyrinth plate are respectively larger than the widths of the inverted U-shaped bucket wheel shaft installation grooves on both sides of the cover body. The coal baffle and the labyrinth plate are respectively located outside and inside the inverted U-shaped bucket wheel shaft installation groove of the cover body.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The cover body, the seal shaft sleeve, and the seal plate of the present utility model jointly form a sealed space to wrap the bucket wheel bearing seat. The seal shaft sleeve is installed on the bucket wheel shaft and rotates with the bucket wheel shaft. The coal baffle on the seal shaft sleeve can block the larger coal blocks falling from the bucket wheel and prevent the coal blocks from entering the cover body; the labyrinth plate of the seal shaft sleeve can block and collect smaller coal particles and place them at the bottom of the cover body as the bucket wheel shaft rotates, preventing fine coal dust from entering the seal of the bucket wheel bearing seat; the pointed top of the cover body can prevent coal blocks from accumulating on the top surface of the cover body; maintenance personnel can regularly check the accumulation of coal dust in the cover body by removing the inspection cover plate, and can open the seal plate for cleaning after the equipment stops.

[0014] The practical structure of the present utility model is simple, firm, easy to install, and has good sealing performance. Relying on its own structural characteristics, it can isolate the coal particles and coal dust carried by the bucket wheel during the material taking process of the material taking machine outside the guard, prevent them from entering the inside of the bucket wheel bearing seat, damage the bucket wheel shaft and bearings, ensure the normal operation of the bucket wheel mechanism of the material taking machine, ensure the smooth progress of enterprise production, and reduce the equipment maintenance cost. Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 the front view of

[0017] Figure 3 is Figure 2 the left view of

[0018] Figure 4 is Figure 3 the A-A sectional view of

[0019] Figure 5 It is a schematic structural diagram of the housing.

[0020] Figure 6 It is the front view of the sealing bushing.

[0021] Figure 7 It is Figure 6 the B-B sectional view of

[0022] Figure 8 It is Figure 6 the top view of

[0023] The markings in the figure are as follows: bucket wheel shaft 1, housing 2, base 3, sealing bushing 4, sealing plate 5, base fixing bolt 6, bushing connection bolt 7, sealing plate fixing bolt 8, bucket wheel shaft installation groove 9, sealing plate installation hole 10, bucket wheel bearing seat 10, base fixing plate 11, maintenance opening 12, maintenance cover plate 13, installation screw hole 14, maintenance cover plate bolt 15, sleeve 16, coal baffle 17, labyrinth plate 18, sleeve connection plate 19, sleeve connection hole 20, base connection hole 21. Specific embodiments

[0024] The utility model is composed of a housing 2, a base 3, a sealing bushing 4, a sealing plate 5, a maintenance cover plate 13, a base fixing bolt 6, a bushing connection bolt 7, a sealing plate fixing bolt 8, and a maintenance cover plate bolt 15.

[0025] Figure 1 , 2 As shown in Figures 3 and 4, the housing 2 is a rectangular box body, the base 3 is a steel plate frame structure, and the lower end of the housing 2 is fixed to the base 3 by the base fixing bolt 6. There are inverted U-shaped bucket wheel shaft installation grooves 9 at the lower parts of the two opposite sides of the housing 2. The shaft rod of the bucket wheel shaft 1 is embedded in the upper part of the bucket wheel shaft installation groove 9. The radian of the upper arc of the inverted U-shaped bucket wheel installation grooves 9 on both side walls of the housing 2 matches the diameter of the bucket wheel shaft 1. The rod body of the bucket wheel shaft 1 and the upper arc of the bucket wheel installation groove 9 are in sliding fit. The lower parts of the two bucket wheel shaft installation grooves 9 are respectively closed by two sealing plates 5. The sealing bushing 4 is composed of two semi-circular bushings. The two ends of the two semi-circular bushings face each other, and the bushing connection bolt 7 connects the two ends of the two semi-circular bushings into a circular sealing bushing 4. The inner diameter of the sealing bushing 4 matches the diameter of the bucket wheel shaft 1. The two sealing bushings 4 are respectively sleeved on the bucket wheel shaft 1 outside the bucket wheel shaft installation grooves 9 on both sides of the housing 2.

[0026] Figure 1 , 3、As shown in FIGS. 5, the top surface of the cover body 2 consists of two inclined surfaces to form a spire structure. The spire of the cover body 2 can prevent coal lumps from accumulating on the top surface of the cover body 2. There is a maintenance opening 12 on one of the inclined surfaces of the top surface. The maintenance opening 12 is covered with a maintenance cover plate 13. There are installation screw holes 14 at the edge of the maintenance opening 12. There are installation holes around the maintenance cover plate 13 corresponding to the installation screw holes 14 of the maintenance opening 12. The maintenance cover plate bolts 15 fixedly connect the maintenance cover plate 13 with the installation screw holes 14 of the maintenance opening 12. Maintenance personnel can regularly check the accumulation of coal dust in the cover body 2 by removing the maintenance cover plate 13.

[0027] Figure 1 、 3 、As shown in FIGS. 4, at the lower ends of the two opposite side walls of the cover body 2, there are base connection holes 21 respectively. On the upper surfaces of the bases 3 inside the base connection holes 21, base fixing plates 11 are welded respectively. There are screw holes on the base fixing plates 11 corresponding to the base connection holes 21 on both side walls of the cover body 2 respectively. The base fixing bolts 6 connect the side walls of the cover body 2 with the screw holes of the base fixing plates 11 through the base connection holes 21.

[0028] Figure 1 、 3 、As shown in FIGS. 5, along the length direction at the lower edges of the two bucket wheel shaft installation grooves 9 of the cover body 2, there are a plurality of seal plate installation holes 10 respectively. On both sides of the two seal plates 5, there are a plurality of installation holes corresponding to the plurality of seal plate installation holes 10 at the edge of the bucket wheel shaft installation groove 9. The seal plate fixing bolts 8 fixedly connect both sides of the two seal plates 5 with the two side edges of the two bucket wheel shaft installation grooves 9 respectively. The bucket wheel shaft installation groove 9 is open at the lower end of the cover body 2, and the cover body 2 can be sleeved on the bucket wheel shaft 1.

[0029] Figure 6 、 7 、As shown in FIGS. 8, the two semi-circular shaft sleeves of the seal shaft sleeve 4 are respectively composed of a sleeve 16, a coal baffle 17 and a labyrinth plate 18.

[0030] As shown in the figure, the sleeve 16 is semi-circular. The inner diameter of the semi-circular sleeve 16 matches the diameter of the bucket wheel shaft 1. The semi-circular sleeve 16 is sleeved on the outer wall of the bucket wheel shaft 1. At both ends of the semi-circular sleeve 16, there are sleeve connection plates 19 respectively. On the sleeve connection plates 19 of the two semi-circular sleeves 16, there are opposite sleeve connection holes 20 respectively. The shaft sleeve connection bolts 7 fixedly connect the sleeve connection plates 19 of the two semi-circular sleeves 16 through the sleeve connection holes 20.

[0031] As shown in the figure, the coal baffle 17 is a semi-circular ring plate. The lower end of the coal baffle 17 is vertically connected to the middle part of the barrel wall of the sleeve 16. The outer diameter of the coal baffle 17 is greater than the width of the inverted U-shaped bucket wheel shaft installation groove 9 on both sides of the cover body 2. The coal baffle 17 is located outside the bucket wheel shaft installation groove 9 of the cover body 2. The coal baffle 17 can block coal lumps with larger particle sizes and prevent them from entering the cover body 2.

[0032] As shown in the figure, the labyrinth plate 18 is a semi-circular plate. The lower end of the labyrinth plate 18 is vertically connected to the rear end of the cylinder wall of the sleeve 16. The upper end of the labyrinth plate 18 has a right-angled bent edge. The labyrinth plate 18 extends into the inner side of the bucket wheel shaft installation groove 9 of the cover body 2. The outer diameter of the labyrinth plate 18 is larger than the width of the bucket wheel shaft installation groove 9. The labyrinth plate 18 can block and collect smaller coal particles, and as the bucket wheel shaft 1 rotates, place them at the bottom of the cover body 2, preventing fine coal dust from entering the seal of the bucket wheel bearing seat 10.

[0033] An embodiment of the present utility model is as follows:

[0034] The cover body 2 is made of Q345B, with a length of 1224 mm, a width of 624 mm, a height of 1400 mm, a spire angle of 80°, a wall thickness of 12 mm. The length of the inspection opening 12 is 500 mm, the width is 200 mm, the width of the bucket wheel shaft installation groove 9 is 380 mm, and the height is 535 mm;

[0035] The inspection cover plate 13 is made of Q235B, with a length of 600 mm, a width of 300 mm, and a thickness of 12 mm. The handle size is a length of 300 mm, a width of 50 mm, a height of 150 mm, and a thickness of 30 mm;

[0036] The inspection cover plate bolt 15 is a stainless steel socket head cap screw, with a size of M16×25 mm;

[0037] The sealing plate 5 is made of Q345B, with a length of 450 mm, a width of 400 mm, and a height of 12 mm;

[0038] The sealing shaft sleeve 4 is made of Q345B, with an inner diameter of 360 mm and a thickness of 12 mm. The outer diameter of the coal baffle 17 is 580 mm, the thickness is 10 mm, and the outer diameter of the labyrinth plate 18 is 580 mm, and the upper edge width is 32 mm;

[0039] The base fixing bolt 6 is an 8.8-grade hexagon head bolt, with a size of M24×30 mm;

[0040] The shaft sleeve connection bolt 7 is an 8.8-grade socket head cap screw, with a size of M20×25 mm;

[0041] The sealing plate fixing bolt 8 is a stainless steel socket head cap screw, with a size of M16×25 mm.

Claims

1. A sealing shield for the bucket wheel bearing seat of a material taking machine that is convenient for disassembly and assembly, characterized in that: It includes a cover body (2), a base (3), a sealing shaft sleeve (4), a sealing plate (5), base fixing bolts (6), shaft sleeve connection bolts (7), and sealing plate fixing bolts (8). The cover body (2) is a rectangular box body, and the base (3) is a steel plate frame structure. The lower end of the cover body (2) is fixedly connected to the base (3) through the base fixing bolts (6). The opposite two side walls of the cover body (2) are perpendicular to the rod body of the bucket wheel shaft (1). There are inverted U-shaped bucket wheel shaft mounting grooves (9) at the lower parts of these two side walls respectively. The shaft rod of the bucket wheel shaft (1) is embedded in the upper part of the bucket wheel shaft mounting groove (9). The lower parts of the two bucket wheel shaft mounting grooves (9) are respectively closed by two sealing plates (5). The sealing shaft sleeve (4) is composed of two semi-circular shaft sleeves. The two ends of the two semi-circular shaft sleeves face each other, and the shaft sleeve connection bolts (7) connect the two ends of the two semi-circular shaft sleeves into a circular sealing shaft sleeve (4). The inner diameter of the sealing shaft sleeve (4) matches the diameter of the bucket wheel shaft (1). The two sealing shaft sleeves (4) are respectively sleeved on the bucket wheel shaft (1) outside the bucket wheel shaft mounting grooves (9) on both sides of the cover body (2).

2. The seal guard of the bucket wheel bearing seat of the easy-to-disassemble and assemble material handling machine according to claim 1, wherein: The top surface of the cover body (2) described above consists of two inclined surfaces to form a spire structure. There is a maintenance opening (12) on one inclined surface of the top surface. A maintenance cover plate (13) covers the maintenance opening (12). There are mounting screw holes (14) at the edge of the maintenance opening (12). There are mounting holes around the maintenance cover plate (13) corresponding to the mounting screw holes (14) of the maintenance opening (12). The maintenance cover plate bolts (15) fixedly connect the maintenance cover plate (13) to the mounting screw holes (14) of the maintenance opening (12).

3. The seal guard of the bucket wheel bearing seat of the material taking machine that is convenient for disassembly and assembly according to claim 1, wherein: The radian of the upper arc of the bucket wheel mounting grooves (9) on both side walls of the cover body (2) described above matches the diameter of the bucket wheel shaft (1). The rod body of the bucket wheel shaft (1) is in sliding fit with the upper arc of the bucket wheel mounting groove (9). There are base connection holes (21) at the lower ends of the opposite two side walls of the cover body (2) respectively. Base fixing plates (11) are respectively welded on the upper surfaces of the base (3) inside the base connection holes (21). There are screw holes on the base fixing plates (11) corresponding to the base connection holes (21) on both side walls of the cover body (2) respectively. The base fixing bolts (6) connect the side walls of the cover body (2) to the screw holes of the base fixing plates (11) through the base connection holes (21).

4. The seal cover of the bucket wheel bearing seat of the material taking machine that is convenient for disassembly and assembly according to claim 1, wherein: There are respectively multiple sealing plate mounting holes (10) along the length direction at the lower edges of the two bucket wheel shaft mounting grooves (9) described above. There are multiple mounting holes on both sides of the two sealing plates (5) respectively corresponding to the multiple sealing plate mounting holes (10) at the edges of the bucket wheel shaft mounting grooves (9). The sealing plate fixing bolts (8) respectively fixedly connect both sides of the two sealing plates (5) to the sealing plate mounting holes (10) at the two side edges of the two bucket wheel shaft mounting grooves (9).

5. The seal cover of the bucket wheel bearing seat of the easily disassembled and assembled material taking machine according to claim 1, characterized in that: The two semi-circular shaft sleeves of the described sealing shaft sleeve (4) are respectively composed of a sleeve (16), a coal baffle (17) and a labyrinth plate (18). The sleeve (16) is semi-circular, and the inner diameter of the semi-circular sleeve (16) matches the diameter of the bucket wheel shaft (1). The semi-circular sleeve (16) is sleeved on the outer wall of the bucket wheel shaft (1). There are sleeve connecting plates (19) at both ends of the semi-circular sleeve (16). There are opposite sleeve connection holes (20) on the sleeve connecting plates (19) of the two semi-circular sleeves (16). The sleeve connection bolts (7) fixedly connect the sleeve connecting plates (19) of the two semi-circular sleeves through the sleeve connection holes (20). The coal baffle (17) is a semi-circular ring plate, and the lower end of the coal baffle (17) is vertically connected to the middle of the barrel wall of the sleeve (16). The labyrinth plate (18) is a semi-circular ring plate, and the lower end of the labyrinth plate (18) is vertically connected to the rear end of the barrel wall of the sleeve (16). The upper end of the labyrinth plate (18) has a right-angled bending edge. The outer diameters of the coal baffle (17) and the labyrinth plate (18) are respectively larger than the widths of the bucket wheel shaft installation grooves (9) on both sides of the housing (2). The coal baffle (17) and the labyrinth plate (18) are respectively located outside and inside the bucket wheel shaft installation grooves (9) of the housing (2).

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