CN217234333U - Impeller gear box sealing structure - Google Patents

Abstract

The utility model discloses a impeller gear box seal structure, the gearbox comprises a gear box body, one side fixed mounting of gear box has a solid fixed cylinder, the output fixedly connected with output shaft of gear box, and solid fixed cylinder is located the outside of output shaft. Still include the seal cover, the seal cover is installed in the inside of solid fixed cylinder, the seal cover includes first semi-ring and second semi-ring, and first semi-ring and second semi-ring joint, the equal fixed mounting in inboard of first semi-ring and second semi-ring has the sponge to absorb water the layer, the inboard fixed mounting that the sponge absorbed water the layer has sealing rubber layer. First sealing ring and second sealing ring through setting up overlap on the output shaft surface, and the first sealing ring and the second sealing ring of rubber material shelter from the gap between solid fixed cylinder and the output shaft to sheltering from the rivers to the external world, thereby having avoided the gear box to use in the comparatively moist place of environment, have mud, grit etc. and enter into the motor, influence the motor life-span.

Description

Impeller gear box sealing structure

Technical Field

The utility model belongs to the technical field of the gear box, concretely relates to impeller gear box seal structure.

Background

In the sewage treatment process of a sewage treatment plant, a flow impeller, particularly a submersible flow impeller, such as an oxidation ditch process, is often used, and the flow impeller is required to provide flowing power for sewage entering an oxidation ditch, and is also often used in other sewage treatment processes.

The flow pusher mainly comprises a motor, a gear box and a flow pushing blade, wherein an output shaft of the motor is connected with an input of the gear box, and an output shaft of the gear box is connected with the flow pushing blade, namely, the power of the motor is transmitted to the flow pushing blade through the gear box, so that the flow pushing blade is driven to rotate. But the output shaft of current impeller gear box is mechanical seal, and mechanical seal effect is poor, and the impeller is put in sewage, has mud, grit etc. and gets into, influences the mechanical seal face, and when the mechanical seal face wearing and tearing back, sewage can get into in the gear box, and then enters into the motor through the gear box, influences the motor life-span.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a impeller gear box seal structure has solved the problem that the gear box is sealed.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a impeller gear box seal structure, includes the gear box, one side fixed mounting of gear box has a solid fixed cylinder, the output fixedly connected with output shaft of gear box, and solid fixed cylinder is located the outside of output shaft.

Still include the seal cover, the seal cover is installed in the inside of solid fixed cylinder, the seal cover includes first semi-ring and second semi-ring, and first semi-ring and second semi-ring joint, the equal fixed mounting in inboard of first semi-ring and second semi-ring has the sponge to absorb water the layer, the inboard fixed mounting on sponge layer that absorbs water has the sealing rubber layer.

The sealing ring and the connecting ring are fixed through the magic tape; the sealing ring comprises first sealing ring and second sealing ring, the one end and the second sealing ring rotatable coupling of first sealing ring, the equal fixed mounting in one side of first sealing ring and second sealing ring has the hair side that the magic was pasted, the bonding face that the side-mounting magic of go-between was pasted, and the hair side that the magic was pasted and bonding face position are corresponding.

The other end of the first sealing ring is provided with a clamping block, one end of the second sealing ring is provided with a connecting hole, and the clamping block is in sliding fit with the connecting hole.

One side fixed mounting that the magic was pasted the bonding surface was kept away from to the go-between has a spring, the solid fixed ring of one end fixedly connected with of spring, gu one side fixed mounting of fixed ring has the screw ring, and gu the one end fixedly connected with turning block that the screw ring was kept away from to fixed ring.

Preferably, one side of the first sealing ring and one side of the second sealing ring are movably mounted on the inner wall of the fixed cylinder, the inner walls of the first sealing ring and the second sealing ring are combined to form a circular ring, the size specification of the circular ring is matched with the size specification of the surface of the output shaft, the centers of the first sealing ring and the second sealing ring are on the same straight line with the center of the output shaft, and the first sealing ring and the second sealing ring are both rubber rings.

Sheltering from external rivers to avoided the gear box to use in the comparatively moist place of environment, external rivers very easily cause the corruption to its inside part from the position infiltration of fixed section of thick bamboo, lead to the gear box unable use, thereby cause the use of gear box to produce the limitation.

Preferably, one side of the fixture block is fixedly installed on the surface of the first sealing ring, and the size specification of the surface of the fixture block is larger than that of the inner wall of the connecting hole.

After a period of use, the first sealing ring and the second sealing ring are replaced after being damaged.

Preferably, the number of the magic tapes is at least two, and the two magic tapes are symmetrically distributed by taking the output shaft as an axis.

Fix first sealing ring and second sealing ring to it is not hard up to avoid first sealing ring and second sealing ring to receive the exogenic action to take place.

Preferably, the inner annular wall of the connecting ring is slidably mounted on the surface of the output shaft, and the center of the spring is aligned with the center of the output shaft.

Make first sealing ring and second sealing ring keep laminating mutually with fixed section of thick bamboo inner wall to avoid first sealing ring and second sealing ring crooked, and can't play and shelter from the effect.

Preferably, the surface of the threaded ring is in threaded installation with the inner wall of the fixed cylinder, and one side of the fixed ring is movably connected with one side of the fixed cylinder.

Fix solid fixed ring at solid fixed cylinder surface to having avoided the gear box to use in the comparatively moist place of environment, having got into such as mud, grit, influence the mechanical seal face, when the mechanical seal face wearing and tearing back, sewage can get into in the gear box, and then enters into the motor through the gear box, influences the motor life-span.

Preferably, the number of the rotating blocks is at least two, the two clamping blocks are distributed in an axisymmetrical mode by taking the fixing ring as an axis, and the cross sections of the clamping blocks are of an L-shaped structure.

The fixing ring is convenient to mount or dismount.

Compared with the prior art, the beneficial effects of the utility model are that:

1. first sealing ring and second sealing ring through setting up overlap on the output shaft surface, and the first sealing ring and the second sealing ring of rubber material shelter from the gap between solid fixed cylinder and the output shaft to sheltering from external rivers, thereby having avoided the gear box to use in the comparatively moist place of environment, have entering such as mud, gravel, influence the mechanical seal face. The change of sealing ring is also very convenient, takes out the fixture block of first sealing ring upper end from the connecting hole of second sealing ring upper end, dismantles first sealing ring and second sealing ring from the output shaft upper end to after a period of use, change it after first sealing ring and the damage of second sealing ring.

2. The magic tapes at the upper ends of the first sealing ring and the second sealing ring are connected with the surfaces of the connecting rings, so that the first sealing ring and the second sealing ring are fixed, and looseness caused by external force on the first sealing ring and the second sealing ring is avoided. The spring promotes the go-between and laminates first sealing ring and second sealing ring and the fixed cylinder is inside mutually to make first sealing ring and second sealing ring keep laminating mutually with the fixed cylinder inner wall, thereby avoid first sealing ring and second sealing ring crooked, and can't play and shelter from the effect.

3. The thread ring is connected with the fixed cylinder through the setting, so that the fixed ring is fixed on the surface of the fixed cylinder, the iron sheet is prevented from falling off from the inside of the fixed cylinder easily in daily use, external impurities are led to enter the fixed cylinder, after the fixed cylinder is used for a period of time, the fixed cylinder is blocked, manual cleaning is needed, the fixed ring is rotated through the two rotating blocks, and the fixed ring is convenient to install or detach.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of the enlarged structure at a of the present invention.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is an enlarged schematic structural diagram of the position B of the present invention.

Fig. 5 is a schematic view of the local front view structure of the present invention.

Fig. 6 is a schematic view of the sealing sleeve of the present invention.

In the figure: 1. a gear case; 2. a fixed cylinder; 3. an output shaft; 4. a first seal ring; 5. a second seal ring; 6. a clamping block; 7. connecting holes; 8. magic tape; 9. a connecting ring; 10. a spring; 11. a threaded ring; 12. a fixing ring; 13. rotating the block; 14. a first half ring; 15. a second semi-ring sea; 16. a cotton water absorption layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the present invention 'front', 'rear', 'left', 'right', 'up', 'down' all refer to the orientation in fig. 1, wherein 'front' refers to facing outwards in fig. 1 with respect to the paper surface and 'rear' refers to facing inwards in fig. 1 with respect to the paper surface.

Referring to fig. 1-6, a sealing structure of a gear box of a flow driver comprises a gear box 1, wherein a fixed cylinder 2 is fixedly installed on one side of the gear box 1, an output end of the gear box 1 is fixedly connected with an output shaft 3, and the fixed cylinder 2 is located on the outer side of the output shaft 3.

Still include the seal cover, the seal cover is installed in the inside of solid fixed cylinder 2, and the seal cover includes first semi-ring 14 and second semi-ring 15, and first semi-ring 14 and second semi-ring 15 joint, and the sponge layer 16 that absorbs water is all fixedly installed to the inboard of first semi-ring 14 and second semi-ring 15, and the sponge layer 16 that absorbs water's inboard fixed mounting has sealing rubber layer 17.

The sealing ring and the connecting ring 9 are fixed through the magic tape 8; the sealing ring comprises first sealing ring 4 and second sealing ring 5, the one end and the 5 rotatable coupling of second sealing ring of first sealing ring 4, the equal fixed mounting in one side of first sealing ring 4 and second sealing ring 5 has the hair side that the magic pasted 8, and go-between 9's side-mounting magic is pasted 8 and is pasted the face that bonds, and the hair side that the magic pasted 8 and the face position that bonds correspond.

The other end of the first sealing ring 4 is provided with a clamping block 6, one end of the second sealing ring 5 is provided with a connecting hole 7, and the clamping block 6 is in sliding fit with the connecting hole 7.

One side fixed mounting that 8 bonding faces were kept away from to magic subsides of go-between 9 has spring 10, and one end fixedly connected with of spring 10 fixes ring 12, and one side fixed mounting who fixes ring 12 has screw ring 11, and fixes ring 12 and keep away from the one end fixedly connected with turning block 13 of screw ring 11.

The working principle of the technical scheme is as follows:

firstly, a first half ring 14 and a second half ring 15 are arranged inside the fixed cylinder 2, the sealing rubber layer 17 can be attached to the surface of the output shaft 3 under the action of the elastic force of the sponge water-absorbing layer 16, so that the sealing effect is realized, in addition, the water entering the fixed cylinder 2 can be absorbed by the sponge water-absorbing layer 16,

then cup joint first sealing ring 4 and second sealing ring 5 on output shaft 3's surface, 8 hair sides are pasted with both and the magic of go-between 9 one side is pasted to the magic of rethread first sealing ring 4 and 5 one sides of second sealing ring and 8 bonding faces are connected, fix first sealing ring 4 and second sealing ring 5, avoid first sealing ring 4 and second sealing ring 5 to receive the exogenic action to take place to become flexible. The spring 10 that sets up in addition promotes go-between 9, makes on the one hand go-between 9 simultaneously with first sealing ring 4 with the laminating of second sealing ring 5 inseparabler, on the other hand promotes first sealing ring 4 and second sealing ring 5 and the inside laminating mutually of fixed cylinder 2 to make first sealing ring 4 and second sealing ring 5 keep laminating mutually with fixed cylinder 2 inner wall, realize the sealed to fixed cylinder 2. In addition, the first sealing ring 4 and the second sealing ring 5 made of rubber are used for shielding a gap between the fixed cylinder 2 and the output shaft 3, so that external water flow is shielded, the gear box is prevented from being used in a humid place, sludge, gravel and the like can enter the gear box, sewage can be prevented from entering the fixed cylinder 2, and then the sewage enters the gear box again, and therefore the motor inside the gear box is protected, and the service life of the motor is prolonged.

According to the scheme, the sealing ring is used as a first layer of protection to prevent water from entering the fixed cylinder 2 as much as possible and then entering the gear box; the seal cover protects as the second layer, in case there is a small amount of water entering fixed cylinder 2, will get into a small amount of sewage absorption in the fixed cylinder 2 through the seal cover to prevent that sewage from getting into in the gear box.

In another embodiment, as shown in fig. 1, one side of the latch 6 is surface-fixedly mounted with the first sealing ring 4, and the dimensional specification of the surface of the latch 6 is larger than the dimensional specification of the inner wall of the connecting hole 7.

The fixture block 6 at the upper end of the first sealing ring 4 is taken out from the connecting hole 7 at the upper end of the second sealing ring 5, and the first sealing ring 4 and the second sealing ring 5 are detached from the upper end of the output shaft 3, so that after the first sealing ring 4 and the second sealing ring 5 are damaged, the first sealing ring 4 and the second sealing ring 5 are replaced.

In another embodiment, as shown in fig. 1, at least two magic tapes 8 are provided, and the two magic tapes 8 are symmetrically distributed around the output shaft 3.

The magic tapes 8 at the upper ends of the first sealing ring 4 and the second sealing ring 5 are connected with the surface of the connecting ring 9, so that the first sealing ring 4 and the second sealing ring 5 are fixed, and the first sealing ring 4 and the second sealing ring 5 are prevented from loosening under the action of external force.

In another embodiment, as shown in fig. 1, the inner annular wall of the connecting ring 9 is slidably mounted on the surface of the output shaft 3, and the center of the spring 10 is aligned with the center of the output shaft 3.

The spring 10 pushes the connecting ring 9 to attach the first sealing ring 4 and the second sealing ring 5 to the inside of the fixed cylinder 2, so that the first sealing ring 4 and the second sealing ring 5 are kept attached to the inner wall of the fixed cylinder 2, and the first sealing ring 4 and the second sealing ring 5 are prevented from being bent and cannot have a shielding effect.

In another embodiment, as shown in fig. 4, the surface of the screw ring 11 is screw-fitted to the inner wall of the fixed cylinder 2, and one side of the fixed ring 12 is movably coupled to one side of the fixed cylinder 2.

The threaded ring 11 through setting up is connected with solid fixed cylinder 2 to fix solid fixed ring 12 on solid fixed cylinder 2 surface, thereby avoided in daily use, the iron sheet very easily drops from solid fixed cylinder 2 is inside, leads to external impurity to get into inside solid fixed cylinder 2, after a period of use, causes the jam to solid fixed cylinder 2, needs the manual work to clear up.

In another embodiment, as shown in fig. 4, there are at least two rotating blocks 13, two blocks 6 are axially symmetrically distributed around the fixed ring 12, and the cross section of the block 6 is in an "L" shape.

The fixed ring 12 is rotated by the two turning blocks 13 to facilitate mounting or dismounting of the fixed ring 12.

The working principle of the sealing structure device of the impeller gear box is as follows: first, the first half ring 14 and the second half ring 15 are installed inside the fixed cylinder 2, the sealing rubber layer 17 can be attached to the surface of the output shaft 3 under the action of the elastic force of the sponge water absorption layer 16, the sealing effect is achieved, and in addition, water entering the fixed cylinder 2 can be absorbed by the sponge water absorption layer 16.

Cup joint first sealing ring 4 and second sealing ring 5 on output shaft 3's surface, the 8 hair sides of magic subsides of rethread first sealing ring 4 and 5 one sides of second sealing ring are connected both with the 8 bonding faces of magic subsides of go-between 9 one side, fix first sealing ring 4 and second sealing ring 5, avoid first sealing ring 4 and second sealing ring 5 to receive the exogenic action to take place to become flexible. The spring 10 that sets up in addition promotes go-between 9, makes on the one hand go-between 9 and the laminating of first sealing ring 4 with second sealing ring 5 inseparabler, and the other is that promote first sealing ring 4 and second sealing ring 5 and the inside laminating mutually of solid fixed cylinder 2 to make first sealing ring 4 keep laminating mutually with solid fixed cylinder 2 inner wall with second sealing ring 5, realize sealedly.

In addition, the first sealing ring 4 and the second sealing ring 5 made of rubber are used for shielding a gap between the fixed cylinder 2 and the output shaft 3, so that external water flow is shielded, the gear box is prevented from being used in a humid place, sludge, gravel and the like are prevented from entering the gear box, the motor inside the gear box is protected, and the service life of the motor is prolonged.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a impeller gear box seal structure, includes gear box (1), its characterized in that: a fixed cylinder (2) is fixedly mounted on one side of the gear box (1), an output end of the gear box (1) is fixedly connected with an output shaft (3), and the fixed cylinder (2) is positioned on the outer side of the output shaft (3);

the sealing sleeve is arranged inside the fixed cylinder (2), the sealing sleeve comprises a first half ring (14) and a second half ring (15), the first half ring (14) and the second half ring (15) are clamped, the inner sides of the first half ring (14) and the second half ring (15) are fixedly provided with sponge water absorption layers (16), and the inner side of each sponge water absorption layer (16) is fixedly provided with a sealing rubber layer (17);

the sealing ring and the connecting ring (9) are fixed through the magic tape (8); the sealing ring is composed of a first sealing ring (4) and a second sealing ring (5), one end of the first sealing ring (4) is rotatably connected with the second sealing ring (5), the hair surfaces of the magic tapes (8) are fixedly arranged on one sides of the first sealing ring (4) and the second sealing ring (5), the bonding surface of the magic tape (8) is arranged on the side surface of the connecting ring (9), and the hair surface of the magic tape (8) corresponds to the bonding surface;

a clamping block (6) is arranged at the other end of the first sealing ring (4), a connecting hole (7) is formed in one end of the second sealing ring (5), and the clamping block (6) is in sliding fit with the connecting hole (7);

one side fixed mounting that magic subsides (8) bonding face were kept away from in go-between (9) has spring (10), the solid fixed ring of one end fixedly connected with (12) of spring (10), one side fixed mounting of solid fixed ring (12) has screw ring (11), and gu fixed ring (12) keep away from one end fixedly connected with turning block (13) of screw ring (11).

2. The impeller gearbox seal arrangement of claim 1, wherein: one side of first sealing ring (4) and second sealing ring (5) and fixed section of thick bamboo (2) inner wall movable mounting, and first sealing ring (4) and second sealing ring (5) inner wall combination constitute the size specification and the output shaft (3) surface dimension specification looks adaptation of ring, the center of first sealing ring (4) and second sealing ring (5) and output shaft (3) center are on same straight line, first sealing ring (4) and second sealing ring (5) are the rubber ring.

3. The impeller gearbox seal structure of claim 1 or 2, wherein: one side of the fixture block (6) is fixedly installed on the surface of the first sealing ring (4), and the size specification of the surface of the fixture block (6) is larger than that of the inner wall of the connecting hole (7).

4. The impeller gearbox seal structure of claim 3, wherein: the magic tapes (8) are at least two, and the output shaft (3) is used as the axisymmetric distribution of the magic tapes (8).

5. The impeller gearbox seal structure of claim 3, wherein: the inner ring wall of the connecting ring (9) is installed on the surface of the output shaft (3) in a sliding mode, and the center of the spring (10) and the center of the output shaft (3) are on the same straight line.

6. The impeller gearbox seal structure of claim 3, wherein: the surface of the threaded ring (11) is in threaded installation with the inner wall of the fixed cylinder (2), and one side of the fixed ring (12) is movably connected with one side of the fixed cylinder (2).

7. The impeller gearbox seal structure of claim 3, wherein: the number of the rotating blocks (13) is at least two, the two clamping blocks (6) are distributed in an axisymmetric mode by taking the fixing ring (12) as an axis, and the cross section of each clamping block (6) is of an L-shaped structure.

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