CN220421551U - Transmission assembly - Google Patents

Abstract

The utility model discloses a transmission assembly, which relates to the technical field of transmission and comprises a working assembly and a protection assembly. The working assembly comprises a transmission shaft and a shell which are connected in a rotating way, and a bearing chamber is arranged in the shell. The protection component comprises a first protection piece and a second protection piece, the first protection piece is connected with the transmission shaft, the second protection piece is arranged on the shell, the first protection piece and the second protection piece are arranged at intervals, and even if the transmission component works for a long time, the first protection piece and the second protection piece cannot be contacted with each other to influence and loosen. The first guard and the second guard are arranged at intervals, and even if the transmission assembly works for a long time, the first guard and the second guard are not contacted with each other to be influenced and loosened. The first protection channel and the second protection channel of buckling are formed between the first protection piece and the second protection piece, and the export of first protection channel is towards ground for outside liquid such as mud is difficult for getting into the bearing room through first protection channel and second protection channel.

Description

Transmission assembly

Technical Field

The utility model relates to the technical field of transmission devices, in particular to a transmission assembly.

Background

Fluid transport means refers to a device that converts electrical energy into kinetic and potential energy of a medium by a mechanism that increases the energy of a solid-liquid mixed medium by centrifugal force (rotation of an impeller).

There are also drawbacks to the prior art drive assemblies for transmitting power from a motor to an impeller, such as the prior art patent publication CN102192184B, in which the drive shaft has a water baffle disc and bearing cover at the end adjacent the impeller for separating mud or water in contact with the impeller from entering the bearing chamber to avoid damage to the bearings. The waterproof structure is tightly assembled, and after the waterproof structure works for a long time, parts are easy to loosen to influence the waterproof performance, so that a new transmission assembly is needed to solve the problems.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a transmission assembly, which solves the technical problems that the waterproof structure of the transmission assembly in the prior art is tightly assembled, and after long-term working, parts are easy to loosen to affect the waterproof property.

In order to achieve the above technical purpose, the technical solution of the present utility model provides a transmission assembly, including:

the working assembly comprises a transmission shaft and a shell which are connected in a rotating way, and a bearing chamber is arranged in the shell;

the protection assembly comprises a first protection piece and a second protection piece, wherein the first protection piece is connected with the transmission shaft, the second protection piece is arranged on the shell, the first protection piece and the second protection piece are arranged at intervals to form a first protection channel and a second protection channel which are communicated, the second protection channel is positioned between the first protection channel and the bearing chamber, the first protection channel and the second protection channel are all arranged along the periphery of the transmission shaft, the first protection channel and the second protection channel are bent relatively, and the outlet of the first protection channel is arranged towards the ground.

In one embodiment, a portion of the first guard facing the second guard has a first surface and a second surface that are disposed at an angle, a portion of the second guard facing the first guard has a third surface and a fourth surface that are disposed at an angle, the first surface is parallel to and spaced apart from the third surface to form the first guard channel, and the second surface is parallel to and spaced apart from the fourth surface to form the second guard channel.

In one embodiment, the second guard is in an unsealed semicircular shape, and two ends of the second guard are arranged towards the ground.

In one embodiment, the protection assembly further comprises a third protection channel, the second protection channel and the first protection channel are sequentially communicated, the third protection channel is arranged along the peripheral side of the transmission shaft, and the third protection channel and the second protection channel are bent relatively.

In one embodiment, the guard assembly further comprises a third guard member located between the bearing chamber and the first guard member, a fifth surface being provided on a side of the third guard member facing the first guard member, a sixth surface being provided on a side of the first guard member facing the third guard member, the sixth surface being disposed at an angle to the second surface, the fifth surface being disposed parallel to and spaced apart from the sixth surface to form the third guard channel.

In one embodiment, the third guard has a flow guide groove disposed along a peripheral side of the drive shaft, the flow guide groove communicating with the third guard channel.

In one embodiment, a side of the third guard away from the fifth surface has a second flange, and the diversion trench is formed between a sidewall of the second flange and the fifth surface.

In one embodiment, a seventh surface is disposed on a side of the second flange facing away from the fifth surface, an eighth surface is disposed on a side of the first guard facing away from the first surface, the seventh surface is parallel to the eighth surface and is spaced apart from the eighth surface to form a fourth guard channel, the fourth guard channel is communicated with the diversion trench, and the fourth guard channel is parallel to the third guard channel.

In one embodiment, the first guard member and the third guard member are enclosed at a position close to the bearing chamber to form a containing cavity, and the containing cavity is communicated with the fourth guard channel.

In one embodiment, the protection assembly further comprises a sealing ring, the sealing ring is arranged in the accommodating cavity, and the sealing ring is sleeved on the transmission shaft.

Compared with the prior art, the utility model has the beneficial effects that: the transmission assembly of the present utility model includes the first and second shields that are not closely assembled together but are spaced apart so that the first and second shields do not come into contact with each other to loosen even after long periods of operation of the transmission assembly. The first guard piece and the second guard piece interval set up and form the first protection passageway and the second protection passageway that are linked together and buckle relatively, and the export of first protection passageway is towards ground for outside mud etc. liquid is difficult for getting into the bearing room through first protection passageway and second protection passageway, can play good guard action to the spare part of bearing room.

Drawings

FIG. 1 is a schematic view of the transmission assembly of the present utility model;

FIG. 2 is a schematic view of the construction of the mounting assembly of the present utility model;

FIG. 3 is a partial cutaway perspective view of the remaining structure of the transmission assembly of the present utility model with the mounting assembly removed;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

figure 5 is a cross-sectional perspective view of one view of the shield assembly of the present utility model;

figure 6 is a cross-sectional perspective view of another view of the shield assembly of the present utility model.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily apparent, a more particular description of the utility model briefly described above will be rendered by reference to the appended drawings. It is apparent that the specific details described below are only some of the embodiments of the present utility model and that the present utility model may be practiced in many other embodiments that depart from those described herein. Based on the embodiments of the present utility model, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The utility model provides a transmission assembly 100, one end of a transmission shaft of the transmission assembly 100 can be connected with a motor (not shown in the figure), the other end of the transmission shaft can be connected with an impeller (not shown in the figure), and the motor can drive the transmission shaft to rotate when in operation so that the transmission shaft drives the impeller to rotate, and therefore the impeller can stir a target solid-liquid mixed medium for industrial use. In addition, in the working process of the transmission assembly 100, if the condition of mud backflow occurs, the transmission assembly 100 has a good protection effect, and can isolate mud from flowing into the bearing inside, so that the bearing is prevented from being damaged. It should be understood that the fluid delivery device may be a variety of pumps having a transmission mechanism.

The transmission assembly 100 comprises a mounting assembly 1, a working assembly 2 and a protection assembly 3, wherein the working assembly 2 is arranged on the mounting assembly 1, and the protection assembly 3 is arranged on the working assembly 2.

The mounting assembly 1 is used to secure the working assembly 2, and in addition, the mounting assembly 1 can be detachably mounted on a fixed location, such as a machine, to secure the working assembly 2 on the machine.

The installation component 1 includes mount pad 11, fastener 12 and mounting screw 13, and mounting screw 13 wears to establish fastener 12 and threaded connection in mount pad 11, and work subassembly 2 is located between fastener 12 and mount pad 11 and fixes.

Through holes 111 are formed in four corners of the bottom of the mounting seat 11, and the through holes 111 can be penetrated by screws so that the screws are connected to the fixing positions in a threaded manner, and therefore the mounting seat 11 can be detachably mounted on the fixing positions.

The mounting seat 11 is internally provided with a mounting groove 112, the mounting groove 112 is recessed back to the fastener 12, and the mounting groove 112 is circular and is used for accommodating the working assembly 2. In other embodiments, the shape of the mounting slot 112 may be other shapes, such as oval, etc., so long as the working assembly 2 is adapted for mounting.

Both ends of the fastener 12 are mounted and fixed on the mounting seat 11 through the mounting screws 13 so as to limit the working assembly 2 positioned in the mounting groove 112, and the fastener 12 is attached to the working assembly 2 so as to prevent the working assembly 2 from shaking in the working process.

The number of the fasteners 12 is two, and the two fasteners 12 are arranged along the length extending direction of the mounting groove 112 so as to limit a plurality of parts of the working assembly 2 positioned in the mounting groove 112, so that the working assembly 2 is mounted more stably. In other embodiments, the number of fasteners 12 may be three or more, and is not limited herein.

The working assembly 2 comprises a housing 21, a transmission shaft 22, a bearing 23, a first end cover 24 and a second end cover 25, wherein the bearing 23 is arranged near the end of the housing 21, an outer ring of the bearing 23 is connected with the inner wall of the housing 21, and an inner ring of the bearing 23 is connected with the transmission shaft 22, so that the transmission shaft 22 can rotate relative to the housing 21 through the bearing 23. The transmission shaft 22 penetrates through the shell 21, and two ends of the transmission shaft 22 extend out of the shell 21, so that one end of the transmission shaft 22 is connected with the motor, and the other end of the transmission shaft is connected with the impeller. The first end cover 24 and the second end cover 25 are both sleeved on the transmission shaft 22 and can synchronously rotate along with the transmission shaft 22.

The first end cover 24 is used for limiting the abutment of the protection component 3 so as to prevent the protection component 3 from moving along the length direction of the transmission shaft 22 in the process of rotating the transmission shaft 22.

The second end cover 25 is located on a side of the first end cover 24 facing away from the protection component 3, and a side of the second end cover 25 adjacent to the first end cover 24 is used for abutting against the first end cover 24 to limit the first end cover 24 so as to prevent the first end cover 24 from moving along the length direction of the transmission shaft 22.

The side of the second end cap 25 facing away from the first end cap 24 is adapted to abut the motor to limit movement of the second end cap 25 along the length of the drive shaft 22.

The housing 21 is provided with a plurality of heat radiating fins 211 along a length extending direction thereof, and the plurality of heat radiating fins 211 are arranged at intervals for increasing a heat radiating area. The heat generated by the high-speed rotation of the transmission shaft 22 inside the housing 21 can be rapidly dissipated by the plurality of heat dissipation fins 211.

The protection assembly 3 comprises a first protection piece 31, a second protection piece 32, a third protection piece 33 and a sealing ring 34, wherein the first protection piece 31 is connected with the outer wall of the transmission shaft 22 and rotates synchronously with the transmission shaft 22. The second guard 32 is detachably connected to the third guard 33, and the third guard 33 is fixed to the housing 21 by screw mounting. During the operation and rotation of the transmission shaft 22, the second guard 32, the third guard 33 and the sealing ring 34 are fixed, and only the first guard 31 rotates synchronously with the transmission shaft 22.

The first guard 31 has a first surface 311 and a second surface 312 facing the second guard 32, and the first surface 311 and the second surface 312 are disposed vertically. In other embodiments, the first surface 311 and the second surface 312 may be disposed at other angles, such as 70 °, and the like, which is not limited herein.

The side of the first guard 31 facing the third guard 33 has a sixth surface 313, the sixth surface 313 being annular. The sixth surface 313 is disposed perpendicular to the second surface 312, and in other embodiments, the sixth surface 313 may be disposed at other angles with respect to the second surface 312, such as, for example, 70 °, and the like, which is not limited herein.

The side of the first guard 31 facing the third guard 33 has an annular first countersink 314, and the bottom surface of the first countersink 314 is an eighth surface 315.

The side of the first prevention piece 31 facing the third prevention piece 33 has a first flange 316 in the shape of a ring, and the inner wall of the first flange 316 is used for connecting the drive shaft 22 so that the first prevention piece 31 can rotate synchronously with the drive shaft 22. The outer wall of the first flange 316 is a ninth surface 317.

The longitudinal section of the second guard 32 is approximately Z-shaped, and the portion of the second guard 32 facing the first guard 31 has a third surface 321 and a fourth surface 322, where the third surface 321 and the fourth surface 322 are disposed vertically, and in other embodiments, the third surface 321 and the fourth surface 322 may be disposed at other angles, for example, 70 ° and the like, which is not limited herein.

The second guard 32 is provided with a plurality of first mounting holes 323 along a circumferential side thereof, the first mounting holes 323 are used for screws to pass through, and the screws pass through the third guard 33 and are screwed on the housing 21, so that the second guard 32 is fixed on the third guard 33.

The second guard 32 is semicircular, and the two ends of the second guard 32 face the ground, where the ground is understood to mean that the mounting 11 faces away from the fastener 12 when the mounting 11 is ready for installation. The second guard 12 is positioned such that no mud can accumulate on the second guard 32 to cause contamination. In other embodiments, the curvature of the second guard 32 may also be greater than a semicircle, so long as no trough is formed to accumulate mud.

The third guard 33 is provided with a plurality of second mounting holes 331 along a circumferential side thereof, and the second mounting holes 331 are configured to be penetrated by screws, which are screwed to the housing 21, so as to fix the third guard 33 to the housing 21.

The side of the third guard 33 facing the first guard 31 has a fifth surface 332, and the fifth surface 332 is annular.

The side of the third guard 33 facing the first guard 31 is further provided with a second flange 333, and a diversion trench 334 is formed between the side wall of the second flange 333 facing the fifth surface 332 and the fifth surface 332, and the diversion trench 334 is annular. If the slurry flows into the diversion trench 334, the slurry is guided by the diversion trench 334 to flow into the lower part of the diversion trench 334 to be discharged.

The surface of the second flange 333 facing away from the fifth surface 332 is a seventh surface 335.

The third protection member 33 is provided with a second sinking groove 336 facing the middle portion of the first protection member 31, and the second sinking groove 336 has two side walls arranged perpendicular to each other.

When the first guard 31, the second guard 32 and the third guard 33 are all installed in place, the first surface 311 of the first guard 31 is spaced from the third surface 321 of the second guard 32 to form the first guard channel 4. The second surface 312 of the first guard 31 is spaced from the fourth surface 322 of the second guard 32 to form the second guard channel 5. The sixth surface 313 of the first guard 31 is spaced from the fifth surface 332 of the third guard 33 to form the third guard channel 6. The eighth surface 315 of the first guard 31 is spaced from the seventh surface 335 of the third guard 33 to form the fourth guard channel 7.

The two groove walls of the second countersink 336 of the third protection member 33 are enclosed with the ninth surface 317 of the first protection member 31 to form a containing cavity 8, the containing cavity 8 is used for containing the sealing ring 34, and the sealing ring 34 can further block mud from flowing to the bearing 23.

The outlet of the first protection channel 4 faces the ground, which is understood to be the side of the mounting seat 11 facing away from the fastener 12, so that the first protection channel 4 can limit the mud from entering, and has an effective protection effect.

The first protection channel 4, the second protection channel 5, the third protection channel 6, the diversion trench 334, the fourth protection channel 7 and the accommodating cavity 8 are sequentially communicated and are all arranged along the peripheral side of the transmission shaft 22. The first guard channel 4 and the second guard channel 5 are perpendicular to each other, and in other embodiments, the first guard channel 4 and the second guard channel 5 may be disposed at other angles, for example, 70 °, which is not limited herein.

The first protection channel 4 is perpendicular to the rotation axis of the transmission shaft 22, so that the slurry is not easy to enter the first protection channel 4. In other embodiments, the first protection channel 4 may be disposed at other angles with respect to the rotation axis of the transmission shaft 22, such as 70 °, and is not limited herein. Generally, the first shielding passage 4 can play a certain protective role more or less as long as the first shielding passage 4 is not parallel to the rotation axis of the transmission shaft 22.

The second guard channel 5 and the third guard channel 6 are perpendicular to each other, and in other embodiments, the second guard channel 5 and the third guard channel 6 may be disposed at other angles, for example, 70 °, which is not limited herein.

The third protection channel 6 is communicated with the fourth protection channel 7 through the diversion trench 334, and the third protection channel 6 and the fourth protection channel 7 are mutually parallel. In other embodiments, the third guard channel 6 and the fourth guard channel 7 may be disposed at other angles, such as 70 °, which is not limited herein.

In combination, the first protection channel 4, the second protection channel 5, the third protection channel 6, the diversion trench 334, the fourth protection channel 7 and the accommodating cavity 8 are sequentially communicated, and the formed channel is similar to a curved labyrinth. In the working process of the transmission shaft 22, slurry generated by stirring materials by the impeller connected with the transmission shaft 22 can normally impact on the second protection piece 32 along the rotation axis direction straight surface of the transmission shaft 22, and the slurry is difficult to enter the space where the bearing 23 is located through each protection channel in sequence due to the existence of the protection channels bent layer by layer, so that a good protection effect can be achieved on the bearing 23, and the bearing 23 can be used for a long time.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications, substitutions and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and are intended to be within the scope of the utility model. Accordingly, the protection scope of the present utility model is subject to the claims.

Claims (10)

1. A transmission assembly, comprising:

the working assembly comprises a transmission shaft and a shell which are connected in a rotating way, and a bearing chamber is arranged in the shell;

the protection assembly comprises a first protection piece and a second protection piece, wherein the first protection piece is connected with the transmission shaft, the second protection piece is arranged on the shell, the first protection piece and the second protection piece are arranged at intervals to form a first protection channel and a second protection channel which are communicated, the second protection channel is positioned between the first protection channel and the bearing chamber, the first protection channel and the second protection channel are all arranged along the periphery of the transmission shaft, the first protection channel and the second protection channel are bent relatively, and the outlet of the first protection channel is arranged towards the ground.

2. The transmission assembly of claim 1, wherein a portion of the first guard facing the second guard has a first surface and a second surface disposed at an angle, and a portion of the second guard facing the first guard has a third surface and a fourth surface disposed at an angle, the first surface and the third surface being parallel and spaced apart to form the first guard channel, and the second surface and the fourth surface being parallel and spaced apart to form the second guard channel.

3. The transmission assembly of claim 1, wherein the second guard is in the shape of an unsealed semicircle, and both ends of the second guard are disposed toward the ground.

4. The transmission assembly of claim 2, wherein the shield assembly further has a third shield channel in sequential communication with the first shield channel, the third shield channel being disposed along a peripheral side of the transmission shaft, the third shield channel being oppositely folded from the second shield channel.

5. The transmission assembly of claim 4, further comprising a third guard member positioned between the bearing chamber and the first guard member, a side of the third guard member facing the first guard member having a fifth surface, a side of the first guard member facing the third guard member having a sixth surface disposed at an angle to the second surface, the fifth surface being parallel to and spaced apart from the sixth surface to form the third guard channel.

6. The drive assembly of claim 5, wherein the third guard has a channel disposed along a peripheral side of the drive shaft, the channel communicating with the third guard channel.

7. The transmission assembly of claim 6, wherein a side of the third guard member remote from the fifth surface has a second flange, the channel being formed between a sidewall of the second flange and the fifth surface.

8. The transmission assembly of claim 7, wherein a side of the second flange facing away from the fifth surface has a seventh surface, a side of the first guard facing away from the first surface has an eighth surface, the seventh surface is parallel to and spaced apart from the eighth surface to form a fourth guard channel, the fourth guard channel communicates with the flow guide groove, and the fourth guard channel is parallel to the third guard channel.

9. The transmission assembly of claim 8, wherein the first guard member and the third guard member define a receiving cavity adjacent the bearing chamber, the receiving cavity communicating with the fourth guard passage.

10. The transmission assembly of claim 9, wherein the protective assembly further comprises a sealing ring, the sealing ring is disposed in the accommodating cavity, and the sealing ring is sleeved on the transmission shaft.