Bearing positioning structure of sludge dewatering machine

Abstract

The utility model belongs to the technical field of sludge dewatering equipment, and particularly relates to a bearing positioning structure of a sludge dewatering machine, which comprises a rotating shaft with a roller and a rack, a shaft seat for mounting the rotating shaft is arranged on the rack, and a bearing hole with a large outer diameter and a small inner diameter is formed in the shaft seat. A positioning piece and an angular contact ball bearing are sequentially arranged in the bearing hole from outside to inside, the inner side of the angular contact ball bearing abuts against the inner wall of the inner diameter of the bearing hole, the positioning piece is used for limiting the angular contact ball bearing in the bearing hole, and the angular contact ball bearing is installed on a rotating shaft in an interference mode. According to the utility model, the positioning piece is additionally arranged outside the bearing hole, the angular contact ball bearing is limited in the bearing hole through the positioning piece, and the rotating shaft is effectively supported under the support of the angular contact ball bearing, so that the angular contact ball bearing is prevented from moving in the bearing hole.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sludge dewatering equipment technical field, concretely relates to a bearing positioning structure of sludge dewatering machine. BACKGROUND

[0002] The working principle of the sludge dewatering machine of the sewage device is that sludge enters the sludge dewatering machine after being concentrated and conditioned to a predetermined width, and the sludge gradually passes through a series of fixed-size rollers, and the pressure for extruding the sludge is gradually increased to achieve dewatering; the sludge dewatered by initial extrusion enters a series of fixed-size main rollers and auxiliary rollers, and the sludge extrusion pressure is gradually increased to achieve the purpose of high-efficiency dewatering.

[0003] The sludge dewatering machine runs frequently in the sewage treatment, and the failure frequency is high during operation, mainly the failure frequency of the roller (bearing). The bearing failure reason is that the axial force is generated between the bearing and the roller during the operation of the sludge dewatering machine, and the bearing axially moves, and the bearing designed in the equipment is all deep groove ball bearing, and the positioning performance is poor, so that the bearing damage frequency is relatively high, and the maintenance frequency is high. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a bearing positioning structure of sludge dewatering machine to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a bearing positioning structure of sludge dewatering machine, including: the shaft with the roller and the frame, be equipped with the shaft seat of installation shaft on the frame, be equipped with the bearing hole of the outer diameter big inner diameter small on the shaft seat, the bearing hole is equipped with the locating piece and the angular contact ball bearing from outside to inside successively, and the inner side of angular contact ball bearing abuts on the inner wall of bearing hole inner diameter, the locating piece is used for limiting angular contact ball bearing in bearing hole, and angular contact ball bearing is installed on the shaft with interference.

[0006] Preferably, the locating piece includes a locating bearing seat and a locating ring seat, a through hole for accommodating the shaft is formed through the shaft center of the locating bearing seat, the locating ring seat is arranged on the shaft center line of the inner side through hole of the locating bearing seat, and one end of the locating ring seat abuts on the side wall of the angular contact ball bearing.

[0007] Preferably, the inner side of the locating bearing seat is further welded with an outer threaded ring seat coaxial with the through hole, and the locating ring seat is screwed on the outer threaded ring seat.

[0008] Preferably, a sunken hole is formed through the outer wall of the locating ring seat from outside to inside, and a locating pin is arranged in the sunken hole and abuts on the outer threaded ring seat.

[0009] Preferably, the outer side of the locating bearing seat is annularly arranged with a plurality of connecting bolts, and one end of each of the plurality of connecting bolts extends into the shaft seat.

[0010] Preferably, the mounting hole of the machine frame is provided with a plurality of stud bolts penetrating the shaft seat, and the outer side of the mounting hole is annularly arranged with a plurality of stud bolts penetrating the shaft seat, and each of the stud bolts is provided with a fixing nut abutting on the shaft seat.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model discloses a positioning member is additionally arranged outside the bearing hole, the angular contact ball bearing is limited in the bearing hole through the positioning member, and the rotating shaft is effectively supported under the support of the angular contact ball bearing, and the angular contact ball bearing is avoided in the bearing hole.

[0013] (2) The utility model discloses a positioning ring seat and a locating bearing seat are additionally arranged, so that the angular contact ball bearing is limited in the bearing hole, and then the angular contact ball bearing is positioned.

[0014] (3) The utility model discloses an outer thread ring seat is additionally arranged, so that the equipment can be positioned in the bearing hole of different extension, and the application range of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the side view of the utility model;

[0016] Figure 2 It is the partial sectional view of the utility model;

[0017] Figure 3 It is the perspective view of the locating bearing seat and the outer thread ring seat of the utility model;

[0018] Figure 4 It is the side view of the locating bearing seat and the outer thread ring seat of the utility model;

[0019] In the drawing: 1, machine frame;2, fixing nut;3, stud bolt;4, shaft seat;5, connecting bolt;6, locating bearing seat;7, rotating shaft;8, angular contact ball bearing;9, through hole;10, bearing hole;11, outer thread ring seat;12, positioning ring seat;13, recessed hole;14, positioning pin;15, mounting hole. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Reference Figures 1-2 As shown in the figure, the utility model provides a bearing positioning structure of sludge dewatering machine, include: with gyro wheel's pivot 7 and frame 1, frame 1 is equipped with the shaft seat 4 of installation pivot 7, the bearing hole 10 of outer diameter big inner diameter small is opened in the shaft seat 4, the locating piece and angular contact ball bearing 8 are sequentially arranged from outside to inside in the bearing hole 10, and the inner side of angular contact ball bearing 8 abuts on the inner wall of bearing hole 10 inner diameter, and the locating piece is used to limit angular contact ball bearing 8 in bearing hole 10, and angular contact ball bearing 8 is installed on pivot 7 with interference.

[0022] Combination Figures 1-2 As shown in the figure, the mounting hole 15 of containing shaft seat 4 is penetrated in frame 1, and a plurality of studs 3 are arranged in annular array on the outside of mounting hole 15 and penetrate the shaft seat 4, and a fixed nut 2 is arranged on each stud 3 and abuts on the shaft seat 4.

[0023] The above, using the pivot 7, frame 1, shaft seat 4 and angular contact ball bearing 8 provided by the utility model, the shaft seat 4 is detachably installed on the frame 1 through the stud 3, fixed nut 2 and mounting hole 15, so as to provide an installation position for the angular contact ball bearing 8 on the frame 1, the angular contact ball bearing 8 is detachably installed in the bearing seat through the bearing hole 10, the angular contact ball bearing 8 is limited in the bearing hole 10 through the locating piece, and the angular contact ball bearing 8 is prevented from moving in the bearing hole 10.

[0024] In the utility model, combination Figures 1-4 As shown in the figure, the positioning member of the embodiment includes a positioning bearing seat 6 and a positioning ring seat 12, a through hole 9 is penetrated through the shaft center of the positioning bearing seat 6 and contains the pivot 7, the positioning ring seat 12 is arranged on the shaft center line of the through hole 9 on the inner side of the positioning bearing seat 6, and one end of the positioning ring seat 12 abuts on the side wall of the angular contact ball bearing 8.

[0025] Combination Figures 2-4 As shown in the figure, the inner side of the positioning bearing seat 6 is further welded with an outer thread ring seat 11 coaxial with the through hole 9, and the positioning ring seat 12 is screwed on the outer thread ring seat 11.

[0026] The outer threaded ring seat 11 is used, the positioning bearing seat 6 is installed on the shaft seat 4, and the positioning ring seat 12 is not abutted on the angular contact ball bearing 8, the positioning ring seat 12 is rotated on the outer threaded seat, the gap between the outer end of the positioning ring seat 12 and the positioning bearing seat 6 is adjusted, and then one end of the positioning ring seat 12 is abutted on the side wall of the angular contact ball bearing 8, so that the equipment is suitable for the equipment with various shaft hole depths.

[0027] Further, in order to avoid the position of the positioning ring seat 12 on the outer threaded seat from moving due to equipment vibration, referring to Figure 2 and Figure 4 , the outer wall of the positioning ring seat 12 is penetrated by an inner recess hole 13 from the outside to the inside, and the inner recess hole 13 is provided with a positioning pin 14 abutting on the outer threaded ring seat 11. After the positioning ring seat 12 is adjusted in position on the outer threaded ring seat 11, the positioning pin 14 in the inner recess hole 13 is tightened, and the positioning pin 14 is abutted on the outer threaded ring seat 11, so that the positioning ring seat 12 is prevented from moving on the outer threaded seat when the equipment vibrates.

[0028] Further, in order to facilitate detachable installation of the positioning bearing seat 6 on the shaft seat 4, referring to Figure 1 and Figure 3 , the outer side of the positioning bearing seat 6 is annularly arranged with a plurality of connecting bolts 5, and one end of the plurality of connecting bolts 5 extends into the shaft seat 4. After the positioning ring seat 12 on the positioning bearing seat 6 is inserted into the bearing hole 10, the hole position on the positioning bearing seat 6 is aligned with the hole position on the shaft seat 4, at this time, the plurality of connecting bolts 5 are respectively screwed into the corresponding hole positions, at this time, the positioning bearing seat 6 is conveniently fixed and installed on the shaft seat 4.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing positioning structure for a sludge dewatering machine, characterized by, The application relates to a rotating shaft (7) with a roller and a frame (1), wherein the frame (1) is provided with a shaft seat (4) for mounting the rotating shaft (7), the shaft seat (4) is provided with a bearing hole (10) with a large outer diameter and a small inner diameter, the bearing hole (10) is sequentially provided with a positioning member and an angular contact ball bearing (8) from the outside to the inside, the inner side of the angular contact ball bearing (8) abuts against the inner wall of the inner diameter of the bearing hole (10), the positioning member is used for limiting the angular contact ball bearing (8) in the bearing hole (10), and the angular contact ball bearing (8) is interference-fitted on the rotating shaft (7). The positioning member comprises a positioning bearing seat (6) and a positioning ring seat (12), the positioning bearing seat (6) is provided with a through hole (9) penetrating through the shaft center and accommodating the rotating shaft (7), the positioning ring seat (12) is arranged on the shaft center line of the through hole (9) on the inner side of the positioning bearing seat (6), and one end of the positioning ring seat (12) abuts against the side wall of the angular contact ball bearing (8).

2. A bearing positioning structure for a sludge dehydrator shaft according to claim 1, characterized by: The inner side of the positioning bearing seat (6) is further welded with an outer thread ring seat (11) coaxial with the through hole (9), and the positioning ring seat (12) is screwed on the outer thread ring seat (11).

3. A bearing positioning structure for a sludge dehydrator shaft according to claim 2, characterized in that: The outer wall of the positioning ring seat (12) is further provided with a sunken hole (13) penetrating from the outside to the inside, and the sunken hole (13) is provided with a positioning pin (14) abutting against the outer thread ring seat (11).

4. A bearing positioning structure for a sludge dehydrator shaft according to claim 3, characterized in that: The outer side of the positioning bearing seat (6) is provided with a plurality of connecting bolts (5) in a ring array, and one end of each of the connecting bolts (5) extends into the shaft seat (4).

5. The bearing positioning structure for a sludge dehydrator shaft according to claim 1, characterized by: The frame (1) is provided with a mounting hole (15) accommodating the shaft seat (4), the outer side of the mounting hole (15) is provided with a plurality of stud bolts (3) penetrating through the shaft seat (4) in a ring array, and each of the stud bolts (3) is provided with a fixing nut (2) abutting against the shaft seat (4).

6. A bearing positioning structure for a sludge dehydrator shaft according to claim 1, characterized by: ​

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