CN210453205U - Shaft end sealing structure of stirrer - Google Patents
Shaft end sealing structure of stirrer Download PDFInfo
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- CN210453205U CN210453205U CN201921192175.1U CN201921192175U CN210453205U CN 210453205 U CN210453205 U CN 210453205U CN 201921192175 U CN201921192175 U CN 201921192175U CN 210453205 U CN210453205 U CN 210453205U
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Abstract
The utility model discloses a shaft end sealing structure of a stirrer, wherein a stirring shaft is arranged on a stirrer shell through a side wall spacing ring and a shaft head shell, and two ends of the stirring shaft extend out of the stirrer shell, a shaft head sealing front end cover and a shaft head sealing rear end cover are arranged on the extending part of the stirring shaft, the shaft head sealing front end cover and the shaft head sealing rear end cover are arranged at the end part of the shaft head shell through a connecting piece, a sealing pair for replacing an oil seal is arranged at the joint of the connecting piece and the shaft head shell, bearings matched with the stirring shaft are arranged in the connecting piece and close to two ends of the connecting piece, stirring shaft steel sleeves beneficial to the rotation of the stirring shaft are arranged in the side wall spacing ring, the shaft head shell and the connecting piece, the stirring shaft steel sleeves can reduce friction and facilitate the rotation of the stirring shaft, a shaft locking device is, prevent that the hourglass material from damaging mixer and seal structure, rotate more laborsavingly.
Description
Technical Field
The utility model relates to a mixer equipment technical field, concretely relates to axle head seal structure of mixer.
Background
A concrete mixer is a machine for mixing and stirring cement, gravel aggregate and water into a concrete mixture. At concrete host computer during operation, for the counter shaft with the axle head clamp plate between be clearance fit's mixer, powerful vibrations force the mortar to get into the continuous grinding of axle head after the start, constantly extrude, constantly get into new sand grain, so reciprocal long-time grinding back causes main shaft shoulder department necking down easily, causes the increase of abnormal vibrations, has further accelerated the wearing and tearing of axle, leads to the mixer to leak the material and damages (mixing) shaft and seal part.
At present, a shaft end sealing structure comprises a group of floating sealing rings and framework type rubber oil seals, and the inner gaps of the shaft end sealing structure are mainly filled with butter to block slurry from entering the shaft end sealing structure, so that the normal work of a bearing and a main shaft is ensured. Although the sealing performance of the grease seal is good, the requirements on the cleanliness of an oil way system and the grease are high, the structure is complex, the difficulty in replacing and maintaining the sealing element is high, the cost is high, and the service life is unstable. In practical application, a user usually does not pay attention to maintenance, so that the conditions of oil shortage, oil shortage or excessive oil injection quantity at the shaft end commonly occur, and the reliability of the whole machine and the quality of finished products are seriously influenced. Once foreign matter such as sand, cement, etc. can enter the internal clearance, it wears the shaft seal structural component like abrasive material, makes the internal clearance grow, causes cement mortar to leak out, the bearing seal is inefficacy. The shaft end sealing structure has good sealing effect and replaces an oil seal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shaft end seal structure of mixer to solve the (mixing) shaft and sealed unreliable in the mixer, easily leak the material and damage, and the (mixing) shaft rotates hard problem.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a shaft end seal structure of mixer which characterized in that: the stirring device comprises a stirring shell, a stirring shaft, a connecting piece, a front shaft head sealing end cover, a rear shaft head sealing end cover, a shaft head shell, a sealing pair, a bearing, a shaft locking device, a stirring shaft steel sleeve and a side wall limiting ring, wherein the side wall limiting ring is symmetrically arranged on the inner side wall of the stirring shell, the stirring shaft penetrates through the stirring shell and the side wall limiting ring, the two ends of the stirring shaft extend out of the stirring shell, the shaft head shell is arranged on the extending parts at the two ends of the stirring shaft, one side of the shaft head shell is arranged on the side wall of the stirring shell through bolts, the front shaft head sealing end cover and the rear shaft head sealing end cover are respectively arranged at the two ends of the stirring shaft, the front shaft head sealing end cover and the rear shaft head sealing end cover are connected with the shaft head shell through the connecting piece, and the bearing, the shaft locking device and, the bearing is installed inside the two ends of the connecting piece, the shaft locking device is installed inside the shaft head shell, the stirring shaft steel sleeve is installed inside the connecting piece and the side wall limiting ring, the sealing pair is installed at the joint of the connecting piece and the shaft head shell, and the sealing pair is tightly abutted to the inner side wall of the shaft head shell through the connecting piece.
The further technical scheme is as follows: two oil holes are arranged on the outer wall of the connecting piece in a penetrating mode, oil plugs are installed in the oil holes, one end of one oil hole is communicated with the bearing, and one end of the other oil hole is communicated with the sealing pair.
The further technical scheme is as follows: the sealing pair comprises an O-shaped sealing ring, a disc-shaped spring gasket, a floating sealing ring, a skeleton sealing ring steel ring and a skeleton sealing ring, the skeleton sealing ring is sleeved on the end part of the stirring shaft steel sleeve, the skeleton sealing ring steel ring is tightly attached to the skeleton sealing ring, the floating sealing ring is tightly attached to the skeleton sealing ring steel ring, the disc-shaped spring gasket is tightly attached to the floating sealing ring, one side of the O-shaped sealing ring is tightly attached to the disc-shaped spring gasket, and the other side of the O-shaped sealing ring is tightly attached to the inner side wall of the.
The further technical scheme is as follows: the shaft locking device is provided with a sealing device, the sealing device comprises a shaft locking device fixing ring, a one-way sealing ring and a yellow glue locking steel frame, the shaft locking device is fixed on the stirring shaft through the shaft locking device fixing ring, the shaft locking device is close to one side of the outer wall of the stirring machine shell, the one-way sealing ring is installed on one side of the outer wall of the stirring machine shell, the shaft locking device and the one-way sealing ring are installed on the other side of the outer wall of the stirring machine shell, the yellow glue locking steel frame is filled with yellow glue, and the yellow.
The further technical scheme is as follows: and a self-locking nut pair is vertically arranged on the outer wall of the side wall limiting ring 11, and one end of the self-locking nut pair can be abutted against the stirring shaft steel sleeve.
The further technical scheme is as follows: and a shaft head protection ring is arranged in one end part of the side wall limiting ring close to the stirring machine shell.
The further technical scheme is as follows: bearing adjusting rings are arranged in the front end cover of the shaft head seal, the rear end cover of the shaft head seal and the shaft head shell.
The further technical scheme is as follows: and an oil mirror is arranged on one side surface of the shaft head sealing rear end cover in a sealing manner.
Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:
1. the utility model provides a shaft end sealing structure of a stirrer, wherein a stirring shaft is arranged on a stirrer shell through a side wall spacing ring and a shaft head shell, and two ends of the stirring shaft extend out of the stirrer shell, a shaft head sealing front end cover and a shaft head sealing rear end cover are arranged on the extending part of the stirring shaft, the shaft head sealing front end cover and the shaft head sealing rear end cover are arranged at the end part of the shaft head shell through a connecting piece, a sealing pair for replacing an oil seal is arranged at the joint of the connecting piece and the shaft head shell, bearings matched with the stirring shaft are arranged in the connecting piece and close to two ends of the connecting piece, stirring shaft steel sleeves beneficial to the rotation of the stirring shaft are arranged in the side wall spacing ring, the shaft head shell and the connecting piece, the stirring shaft steel sleeves can reduce friction and facilitate the rotation of the stirring shaft, a shaft locking device, prevent that the hourglass material from damaging mixer and seal structure, rotate more laborsavingly.
2. This shaft end seal structure of mixer, the lateral wall spacing collar is provided with self-locking nut pair, makes things convenient for the closely laminating (mixing) shaft steel bushing of lateral wall spacing collar, guarantees the leakproofness between lateral wall spacing collar and the (mixing) shaft steel bushing, link up on the outer wall of connecting piece and is provided with two oilholes, conveniently pours into lubricating oil into to rotation positions such as bearing and sealed pair into, makes things convenient for the (mixing) shaft to rotate, and sealed pair is provided with O type sealing washer, belleville spring packing ring, floating seal ring, skeleton seal ring steel ring and skeleton seal ring multilayer structure, guarantees the leakproofness of (mixing) shaft, the sealed front end housing of spindle nose the sealed rear end housing of spindle nose with all be provided with.
Drawings
Fig. 1 is a schematic structural diagram of the shaft end sealing structure of the stirring machine of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
please refer to fig. 1 for an embodiment: the utility model provides a shaft end seal structure of mixer which characterized in that: the stirring device comprises a stirring machine shell 1, a stirring shaft 2, a connecting piece 3, a shaft head sealing front end cover 4, a shaft head sealing rear end cover 5, a shaft head shell 6, a sealing pair 7, a bearing 8, a shaft locking device 9, a stirring shaft steel sleeve 10 and a side wall spacing collar 11, wherein the side wall spacing collar 11 is symmetrically installed on the inner side wall of the stirring machine shell 1, the stirring shaft 2 penetrates through the stirring machine shell 1 and the side wall spacing collar 11, the two ends of the stirring shaft 2 extend out of the stirring machine shell 1, the shaft head shell 6 is installed on the extending parts of the two ends of the stirring shaft 2, one side of the shaft head shell 6 is installed on the side wall of the stirring machine shell 1 through bolts, the shaft head sealing front end cover 4 and the shaft head sealing rear end cover 5 are respectively installed at the two ends of the stirring shaft 2, and the shaft head sealing front end cover 4 and the shaft head sealing rear end cover 5 are connected, bearing 8, shaft locking device 9 and (mixing) shaft steel bushing 10 suit are in on the (mixing) shaft 2, bearing 8 is installed the inside at connecting piece 3 both ends, shaft locking device 9 is installed the inside of spindle nose shell 6, the (mixing) shaft steel bushing 10 is installed connecting piece 3 with the inside of lateral wall spacing collar 11, sealed vice 7 is installed connecting piece 3 with the junction of spindle nose shell 6, just sealed vice 7 passes through connecting piece 3 supports tightly on the inside wall of spindle nose shell 6.
The sealing principle of the shaft end sealing structure of the stirrer is that a stirring shaft 2 is arranged on a stirring machine shell 1 through a side wall limiting ring 11 and a shaft head shell 6, two ends of the stirring shaft 2 extend out of the stirring machine shell 6, the side wall limiting ring 11 and the shaft head shell 6 are symmetrically arranged on the inner side wall and the outer side wall of the stirring machine shell 1 through bolts, the extending parts of two ends of the stirring shaft 2 are provided with a shaft head sealing front end cover 4 and a shaft head sealing rear end cover 5, the shaft head sealing front end cover 4 and the shaft head sealing rear end cover 5 are arranged on the end part of the shaft head shell 6 through a connecting piece 3, the shaft head sealing front end cover 4 and the shaft head sealing rear end cover 5 are connected with the connecting piece 3 through bolts, the connecting piece 3 is connected with the shaft head shell 6 through bolts, a sealing pair 7 replacing oil seals is arranged at the joint of the connecting piece 3 and, all install in lateral wall spacing collar 11, spindle nose shell 6 and the connecting piece 3 and be favorable to (mixing) shaft 2 pivoted (mixing) shaft steel bushing 10, the (mixing) shaft steel bushing 10 can reduce the friction of (mixing) shaft 2 with other parts and be convenient for the rotation of (mixing) shaft 2, still install shaft locking device 9 in spindle nose shell 6, shaft locking device 9 plays sealed effect, traditional mixer oil leak problem can be solved to the axle head seal structure of this mixer, prevent that the hourglass material from damaging mixer and seal structure, labour saving more during the rotation.
Example 2:
on the basis of the above embodiment, embodiment 2 shows an embodiment, two oil holes 12 are arranged on the outer wall of the connecting piece 3 in a penetrating manner, oil plugs are arranged in the oil holes, one end of one of the oil holes 12 is communicated with the bearing 8, and one end of the other oil hole 12 is communicated with the seal pair 7. The sealing pair 7 comprises an O-shaped sealing ring 71, a disc-shaped spring gasket 72, a floating sealing ring 73, a skeleton sealing ring steel ring 74 and a skeleton sealing ring 75, the skeleton sealing ring 75 is sleeved on the end part of the stirring shaft steel sleeve 10, the skeleton sealing ring steel ring 74 is tightly attached to the skeleton sealing ring 75, the floating sealing ring 73 is tightly attached to the skeleton sealing ring steel ring 74, the disc-shaped spring gasket 72 is tightly attached to the floating sealing ring 73, one surface of the O-shaped sealing ring 71 is tightly attached to the disc-shaped spring gasket 72, and the other surface of the O-shaped sealing ring 71 is tightly attached to the inner side wall of the shaft.
Two oil holes 12 are arranged on the outer wall of the connecting piece 3 in a penetrating mode, lubricating oil can be conveniently injected into the rotating positions of the bearing 8, the sealing pair 7 and the like, the stirring shaft 2 can rotate conveniently, the sealing pair 7 is provided with an O-shaped sealing ring 71, a disc spring gasket 72, a floating seal ring 73, a skeleton sealing ring steel ring 74 and a skeleton sealing ring 75 multilayer structure, the sealing performance of the stirring shaft 2 is guaranteed, material leakage during stirring is prevented, the stirring effect is influenced, and stirring equipment is damaged.
Example 3:
on the basis of the above embodiment, embodiment 3 shows an embodiment, the shaft locking device 9 is provided with a sealing device, the sealing device includes a shaft locking device fixing ring 13, a one-way sealing ring 14 and a yellow glue locking steel frame 15, the shaft locking device 9 is fixed on the stirring shaft 2 through the shaft locking device fixing ring 13, the one-way sealing ring 14 is installed on one side of the shaft locking device 9 close to the outer wall of the stirring machine shell 1, the yellow glue locking steel frame 15 is installed between the shaft locking device 9 and the one-way sealing ring 14, and the yellow glue locking steel frame 15 is filled with yellow glue.
Example 4:
on the basis of the above embodiment, embodiment 4 shows an embodiment, a self-locking nut pair 16 is vertically arranged on the outer wall of the side wall limiting ring 11, and one end of the self-locking nut pair 16 can abut against the stirring shaft steel sleeve. A shaft head protection ring 17 is arranged in one end part of the side wall limiting ring 11, which is close to the stirring machine shell 1.
The self-locking nut pair 16 is vertically arranged on the outer wall of the side wall limiting ring 11, so that the side wall limiting ring is conveniently and tightly attached to the stirring shaft steel sleeve, the sealing property between the side wall limiting ring and the stirring shaft steel sleeve is ensured, a shaft head protecting ring 17 is arranged in one end part, close to the stirring machine shell 1, of the side wall limiting ring 11, the shaft head protecting ring 17 can protect the side wall limiting ring 11 from installing the stirring shaft 2, and when the stirring shaft 2 rotates, the stirring shaft 2 is easily damaged by the side wall limiting ring 11.
Example 5:
on the basis of the above embodiment, the embodiment 5 shows an embodiment, and the front end cover 4 of the spindle head seal, the rear end cover 5 of the spindle head seal and the housing 6 of the spindle head are all provided with bearing adjusting rings 18. And an oil mirror 19 is arranged on one side surface of the rear end cover 5 sealed by the shaft head in a sealing way.
Bearing adjusting ring 18 is convenient for bearing 8 to adjust to suitable position when the installation to and be convenient for spindle nose sealed front end housing 4 and spindle nose sealed rear end housing 5 to compress tightly the part of each sealed usefulness when the installation, and a side of spindle nose sealed rear end housing 5 is sealed to be provided with oil mirror 19, and oil mirror 19 seals a side of spindle nose sealed rear end housing 5 on the one hand, prevents the oil leak, and two on the one hand is convenient for observe the stirring process of (mixing) shaft 2, in time adds lubricating oil to (mixing) shaft 2.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts or arrangements, other uses will also be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a shaft end seal structure of mixer which characterized in that: comprises a stirring casing (1), a stirring shaft (2), a connecting piece (3), a shaft head sealing front end cover (4), a shaft head sealing rear end cover (5), a shaft head shell (6), a sealing pair (7), a bearing (8), a shaft locking device (9), a stirring shaft steel sleeve (10) and a side wall limiting ring (11), wherein the side wall limiting ring (11) is symmetrically arranged on the inner side wall of the stirring casing (1), the stirring shaft (2) penetrates through the stirring casing (1) and the side wall limiting ring (11), the two ends of the stirring shaft (2) extend out of the stirring casing (1), the shaft head shell (6) is arranged on the extending parts at the two ends of the stirring shaft (2), one side of the shaft head shell (6) is arranged on the side wall of the stirring casing (1) through bolts, the shaft head sealing front end cover (4) and the shaft head sealing rear end cover (5) are respectively arranged at the two ends of the stirring shaft (2), the shaft head sealing front end cover (4) and the shaft head sealing rear end cover (5) are all passed through the connecting piece (3) and the shaft head shell (6) are connected, a bearing (8), a shaft locking device (9) and a stirring shaft steel sleeve (10) are sleeved on the stirring shaft (2), the bearing (8) is installed inside two ends of the connecting piece (3), the shaft locking device (9) is installed inside the shaft head shell (6), the stirring shaft steel sleeve (10) is installed inside the connecting piece (3) and the side wall limiting ring (11), a sealing pair (7) is installed at the connecting piece (3) and the joint of the shaft head shell (6), and the sealing pair (7) is tightly abutted to the inner side wall of the shaft head shell (6) through the connecting piece (3).
2. A shaft end sealing structure of a mixer as claimed in claim 1, wherein: two oil holes (12) are arranged on the outer wall of the connecting piece (3) in a penetrating mode, oil plugs are installed in the oil holes, one end of one oil hole (12) is communicated with the bearing (8), and one end of the other oil hole (12) is communicated with the sealing pair (7).
3. A shaft end sealing structure of a mixer as claimed in claim 1, wherein: sealing pair (7) includes O type sealing washer (71), belleville spring packing ring (72), floating seal ring (73), skeleton seal ring steel ring (74), skeleton seal ring (75) suit is in on the tip of (mixing) shaft steel bushing (10), skeleton seal ring (74) is hugged closely skeleton seal ring (75), floating seal ring (73) is hugged closely skeleton seal ring steel ring (74), belleville spring packing ring (72) is hugged closely floating seal ring (73), O type sealing ring (71) one side is hugged closely belleville spring packing ring (72), O type sealing ring (71) another side is hugged closely the inside wall of spindle nose shell (6).
4. A shaft end sealing structure of a mixer as claimed in claim 1, wherein: shaft locking ware (9) are provided with sealing device, sealing device includes shaft locking ware retainer plate (13), one-way sealing washer (14), yellow glue locking steelframe (15), shaft locking ware (9) pass through shaft locking ware retainer plate (13) are fixed on (mixing) shaft (2), shaft locking ware (9) are close to install one side of agitator casing (1) outer wall one-way sealing washer (14), shaft locking ware (9) with install between one-way sealing washer (14) yellow glue locking steelframe (15), yellow glue locking steelframe (15) intussuseption is full of yellow glue.
5. A shaft end sealing structure of a mixer as claimed in claim 1, wherein: and a self-locking nut pair (16) is vertically arranged on the outer wall of the side wall limiting ring (11), and one end of the self-locking nut pair (16) can be tightly abutted against the stirring shaft steel sleeve.
6. A shaft end sealing structure of a mixer as claimed in claim 1, wherein: a shaft head protection ring (17) is arranged in one end part of the side wall limiting ring (11) close to the stirring machine shell (1).
7. A shaft end sealing structure of a mixer as claimed in claim 2, wherein: bearing adjusting rings (18) are arranged in the front shaft head sealing end cover (4), the rear shaft head sealing end cover (5) and the shaft head shell (6).
8. A shaft end sealing structure of a mixer as claimed in claim 2, wherein: and an oil mirror (19) is arranged on one side surface of the rear end cover (5) sealed by the shaft head in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192175.1U CN210453205U (en) | 2019-07-26 | 2019-07-26 | Shaft end sealing structure of stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192175.1U CN210453205U (en) | 2019-07-26 | 2019-07-26 | Shaft end sealing structure of stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210453205U true CN210453205U (en) | 2020-05-05 |
Family
ID=70447976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921192175.1U Active CN210453205U (en) | 2019-07-26 | 2019-07-26 | Shaft end sealing structure of stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210453205U (en) |
-
2019
- 2019-07-26 CN CN201921192175.1U patent/CN210453205U/en active Active
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