A dehydration spiral device

Abstract

The present invention discloses a dewatering spiral device, characterized in that: the cavity plate is fixedly installed in the spiral shell, the pressure plate is installed on the cavity plate and a polytetrafluoroethylene plate is installed between the pressure plate and the cavity plate, the skeleton seal is installed in the annular groove on the pressure plate and the skeleton seal is tightly sleeved on the spiral shaft, the left end of the transmission shaft is installed on the left side of the center hole of the bearing seat through an angular contact tapered roller bearing and a left self-aligning bearing, the driven pulley is installed on the left end of the transmission shaft, the right end of the transmission shaft is installed on the right side of the center hole of the bearing seat through a right self-aligning bearing, the right bearing cover is installed on the right side of the bearing seat and the right bearing cover is pressed on the right self-aligning bearing, the right lip seal is installed in the annular groove on the right bearing cover and the right lip seal is tightly sleeved on the transmission shaft. The present invention has good sealing effect, effectively solves the problem of water leakage at the shaft end, meets the use performance of the equipment, operates stably and reliably, improves the drainage effect, and thus improves the output of spiral conveying.

Description

Technical Field

[0001] The invention belongs to the technical field of dehydration screws, and in particular relates to a dehydration screw device. Background Art

[0002] The fit between the spiral partition plate and the spiral shaft in the existing dewatering spiral device is a clearance fit, so water leakage often occurs, which seriously affects its operating effect; in addition, since the dewatering spiral shell is a U-shaped shell, the dewatering spiral shell and the drain mesh plate are both cold-worked parts, and the roundness is difficult to achieve an ideal state. In addition, the gap between the spiral blades and the drain mesh plate cannot be adjusted, resulting in unstable drainage effect, which in turn affects the spiral conveying capacity; in particular, the coaxiality of the shaft end seal between the spiral transmission shaft and the partition plate position is difficult to ensure, which seriously affects the rotation of the spiral shaft, thereby affecting its dewatering effect. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a dewatering spiral device in view of the deficiencies of the above-mentioned prior art, which has good sealing effect, effectively solves the problem of water leakage at the shaft end, meets the performance of the equipment, operates stably and reliably, improves the drainage effect, and thus increases the spiral conveying output.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0005] A dehydration screw device, characterized in that it includes a spiral shell, a transmission shaft, a driven pulley, a pressure cover, a support seat, a coupling, a spiral shaft, a drain mesh, a bearing seat, a left self-aligning bearing, a left lip seal, a left bearing cover, an angular contact tapered roller bearing, a right self-aligning bearing, a right bearing cover, a right lip seal, a pressure plate, a cavity plate, a polytetrafluoroethylene plate and a skeleton seal, the drain mesh is fixedly mounted on the bottom surface of the spiral shell, the cavity plate is fixedly mounted in the spiral shell, the pressure plate is fixedly mounted on the cavity plate by studs, nuts and gaskets, and a polytetrafluoroethylene plate is installed between the pressure plate and the cavity plate, the skeleton seal is installed in the annular groove on the pressure plate and the skeleton seal is tightly sleeved on the spiral shaft, the left end of the spiral shaft is connected to the right end of the transmission shaft by a coupling, and the support seat is fixedly mounted on the cavity plate by screws, nuts and gaskets On the left flange of the spiral housing, the bearing seat is fixedly installed on the support seat, the left end of the transmission shaft is installed on the left side of the center hole of the bearing seat through an angular contact tapered roller bearing and a left self-aligning bearing, the left bearing cover is fixedly installed on the left side of the bearing seat and the left bearing cover is pressed on the angular contact tapered roller bearing, the left lip seal is installed in the annular groove on the left bearing cover and the left lip seal is tightly sleeved on the transmission shaft, the driven pulley is installed on the left end of the transmission shaft, the pressure cover is fixedly installed on the left end of the transmission shaft and the pressure cover is pressed on the driven pulley, the right end of the transmission shaft is installed on the right side of the center hole of the bearing seat through a right self-aligning bearing, the right bearing cover is fixedly installed on the right side of the bearing seat and the right bearing cover is pressed on the right self-aligning bearing, the right lip seal is installed in the annular groove on the right bearing cover and the right lip seal is tightly sleeved on the transmission shaft.

[0006] The right side surface of the support seat is provided with 4 long holes.

[0007] A lifting ring is installed on the top of the bearing seat.

[0008] The driven pulley is provided with two radial threaded holes evenly distributed along the circumferential direction and set screws are installed in the radial threaded holes.

[0009] The top of the bearing seat is provided with an oil filling hole and a refueling plug is installed on the oil filling hole.

[0010] In the present invention, a polytetrafluoroethylene plate is used for end face sealing between the cavity plate and the pressure plate in the spiral shell, and a skeleton seal is used between the pressure plate and the spiral shaft, which effectively solves the problem of water leakage at the shaft end and improves the sealing effect; since there is a clearance fit between the spiral shaft and the cavity plate, the distance between the spiral shaft and the drainage mesh plate installed on the bottom surface of the spiral shell can be adjusted, which improves the drainage effect and thus increases the spiral conveying output; the motor drives the driven pulley to rotate through the conveyor belt, thereby driving the transmission shaft to rotate, and the transmission shaft drives the spiral shaft to rotate through the coupling, thereby realizing the dehydration operation; the two ends of the transmission shaft are supported by a left self-aligning bearing, an angular contact tapered roller bearing and a right self-aligning bearing, which greatly improves its operating accuracy and thus improves its dehydration effect.

[0011] The advantages of the present invention are as follows: good sealing effect, effectively solving the problem of water leakage at the shaft end, meeting the performance requirements of the equipment, stable and reliable operation, and improving the drainage effect, thereby increasing the output of spiral conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is an enlarged view of the local structure at A of the present invention;

[0014] Figure 3 It is an enlarged view of the local structure at B of the present invention;

[0015] Figure 4 It is an enlarged view of the local structure at C of the present invention.

[0016] The accompanying drawings are marked as follows: spiral housing 1, transmission shaft 2, driven pulley 3, pressure cover 4, support seat 5, coupling 6, spiral shaft 7, drain mesh plate 8, bearing seat 9, left self-aligning bearing 10, left lip seal 11, left bearing cover 12, angular contact tapered roller bearing 13, right self-aligning bearing 14, right bearing cover 15, right lip seal 16, pressure plate 17, partition plate 18, polytetrafluoroethylene plate 19, skeleton seal 20. DETAILED DESCRIPTION

[0017] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings:

[0018] A dewatering screw device, characterized in that it includes a spiral shell 1, a transmission shaft 2, a driven pulley 3, a pressure cover 4, a support seat 5, a coupling 6, a spiral shaft 7, a drain mesh plate 8, a bearing seat 9, a left self-aligning bearing 10, a left lip seal 11, a left bearing cover 12, an angular contact tapered roller bearing 13, a right self-aligning bearing 14, a right bearing cover 15, a right lip seal 16, a pressure plate 17, a cavity plate 18, a polytetrafluoroethylene plate 19 and a skeleton seal 20, wherein the drain mesh plate 8 is fixedly mounted on the spiral shell. On the bottom surface of the spiral shell 1, the cavity plate 18 is fixedly installed in the spiral shell 1, the pressure plate 17 is fixedly installed on the cavity plate 18 through studs, nuts and gaskets, and a polytetrafluoroethylene plate 19 is installed between the pressure plate 17 and the cavity plate 18, the skeleton seal 20 is installed in the annular groove on the pressure plate 17 and the skeleton seal 20 is tightly sleeved on the spiral shaft 7, the left end of the spiral shaft 7 is connected to the right end of the transmission shaft 2 through the coupling 6, and the support seat 5 is fixedly installed on the spiral shell 1 by screws, nuts and gaskets. The spiral housing 1 is fixedly mounted on the left flange, the bearing seat 9 is fixedly mounted on the support seat 5, the left end of the transmission shaft 2 is mounted on the left side of the center hole of the bearing seat 9 through an angular contact tapered roller bearing 13 and a left self-aligning bearing 10, the left bearing cover 12 is fixedly mounted on the left side of the bearing seat 9 and the left bearing cover 12 is pressed on the angular contact tapered roller bearing 13, the left lip seal 11 is mounted in the annular groove on the left bearing cover 12 and the left lip seal 11 is tightly sleeved on the transmission shaft 2, the driven pulley 3 is mounted on the left end of the transmission shaft 2, the pressure cover 4 is fixedly mounted on the left end of the transmission shaft 2 and the pressure cover 4 is pressed on the driven pulley 3, the right end of the transmission shaft 2 is mounted on the right side of the center hole of the bearing seat 9 through a right self-aligning bearing 14, the right bearing cover 15 is fixedly mounted on the right side of the bearing seat 9 and the right bearing cover 15 is pressed on the right self-aligning bearing 14, the right lip seal 16 is mounted in the annular groove on the right bearing cover 15 and the right lip seal 16 is tightly sleeved on the transmission shaft 2.

[0019] In the embodiment, four long holes are provided on the right side surface of the support seat 5 .

[0020] In the embodiment, a lifting ring is installed on the top of the bearing seat 9.

[0021] In the embodiment, two radial threaded holes are evenly distributed on the driven pulley 3 along the circumferential direction and set screws are installed in the radial threaded holes.

[0022] In the embodiment, an oil filling hole is installed on the top of the bearing seat 9 and an oil filling plug is installed on the oil filling hole.

[0023] In the present invention, a polytetrafluoroethylene plate 19 is used for end face sealing between the cavity plate 18 and the pressure plate 17 in the spiral shell 1, and a skeleton seal 20 is used between the pressure plate 17 and the spiral shaft 7, which effectively solves the problem of water leakage at the shaft end and improves the sealing effect; since there is a clearance fit between the spiral shaft 7 and the cavity plate 18, the distance between the spiral shaft 7 and the drainage mesh plate 8 installed on the inner bottom surface of the spiral shell 1 can be adjusted, which improves the drainage effect and thus improves the spiral conveying output; the motor drives the driven pulley 3 to rotate through the conveyor belt, thereby driving the transmission shaft 2 to rotate, and the transmission shaft 2 drives the spiral shaft 7 to rotate through the coupling 6, thereby realizing the dehydration operation; the two ends of the transmission shaft 2 are supported by a left self-aligning bearing 10, an angular contact tapered roller bearing 13 and a right self-aligning bearing 14, which greatly improves its operating accuracy and thus improves its dehydration effect.

[0024] The above are only preferred embodiments of the present invention, and 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 be regarded as the protection scope of the present invention.

Claims

1. A dehydration screw device, characterized in that: The invention comprises a spiral shell (1), a transmission shaft (2), a driven pulley (3), a pressure cover (4), a support seat (5), a coupling (6), a spiral shaft (7), a drain mesh plate (8), a bearing seat (9), a left self-aligning bearing (10), a left lip seal (11), a left bearing cover (12), an angular contact tapered roller bearing (13), a right self-aligning bearing (14), a right bearing cover (15), a right lip seal (16), a pressure plate (17), a cavity plate (18), a polytetrafluoroethylene plate (19) and a skeleton seal (20), wherein the drain mesh plate (8) is fixedly mounted on the bottom surface of the spiral shell (1), and the cavity plate (1 8) is fixedly installed in the spiral housing (1), the pressure plate (17) is fixedly installed on the partition plate (18) by means of studs, nuts and washers, and a polytetrafluoroethylene plate (19) is installed between the pressure plate (17) and the partition plate (18), the skeleton seal (20) is installed in the annular groove on the pressure plate (17), and the skeleton seal (20) is tightly sleeved on the spiral shaft (7), the left end of the spiral shaft (7) is connected to the right end of the transmission shaft (2) by means of a coupling (6), the support seat (5) is fixedly installed on the left flange of the spiral housing (1) by means of screws, nuts and washers, and the bearing seat (9) is fixedly installed on the support seat (5), the left end of the transmission shaft (2) is installed on the left side of the center hole of the bearing seat (9) through an angular contact tapered roller bearing (13) and a left self-aligning bearing (10), the left bearing cover (12) is fixedly installed on the left side of the bearing seat (9) and the left bearing cover (12) is pressed on the angular contact tapered roller bearing (13), the left lip seal (11) is installed in the annular groove on the left bearing cover (12) and the left lip seal (11) is tightly sleeved on the transmission shaft (2), the driven pulley (3) is installed on the left end of the transmission shaft (2), and the pressure cover (4) is fixedly installed on the left end of the transmission shaft (2) and the pressure cover (4) is pressed On the driven pulley (3), the right end of the transmission shaft (2) is installed on the right side of the center hole of the bearing seat (9) through the right self-aligning bearing (14), the right bearing cover (15) is fixedly installed on the right side surface of the bearing seat (9) and the right bearing cover (15) is pressed on the right self-aligning bearing (14), the right lip seal (16) is installed in the annular groove on the right bearing cover (15) and the right lip seal (16) is tightly sleeved on the transmission shaft (2); the right side surface of the support seat (5) is provided with 4 long holes; the driven pulley (3) is evenly distributed with 2 radial threaded holes along the circumferential direction and the radial threaded holes are installed with set screws.

2. A dehydration screw device according to claim 1, characterized in that: A lifting ring is installed on the top of the bearing seat (9).

3. A dehydration screw device according to claim 1, characterized in that: The top of the bearing seat (9) is provided with an oil filling hole and a refueling plug is installed on the oil filling hole.

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