CN214888407U - Sealing structure of slurry vibrator - Google Patents

Abstract

The utility model relates to a thick liquids vibrator for concrete. The utility model provides a thick liquids vibrator seal structure, its characterized in that includes the casing, be equipped with the tamper in the casing, the tamper passes through a plurality of bearings and casing rotatable coupling, at least one side in the relative both sides of bearing axial is provided with the sealing member, the sealing member closes on the bearing, sealing member from interior to exterior includes second sealing and first sealing, first sealing is the annular and centers on in second sealing circumference outside, first sealing external diameter is greater than the internal diameter of bearing inner race, it is fixed between first sealing and casing or bearing inner race, second sealing department is formed with the groove of accepting of opening towards the bearing. The utility model has the advantages of can reduce and avoid bearing department lubricating oil to leak even, can guarantee that bearing department is lubricated, can reduce lubricating oil and add the frequency and reduce the lubricating oil use amount.

Description

Sealing structure of slurry vibrator

Technical Field

The utility model relates to a thick liquids vibrator for concrete.

Background

For example, in the slurry vibrator disclosed in chinese patent No. 201910936875.5, in order to facilitate assembly, maintenance and use, a wear-resistant portion is detachably fixed below the housing, and the wear-resistant portion and the housing are sealed by a seal ring.

Because the vibrator is vertical when using and sets up, lubricating oil in the casing can move down, thereby lubricating oil of bearing department can move down and break away from the bearing. In order to ensure the normal use of the vibrator, more lubricating oil needs to be added into the shell, and even the vibrator needs to be disassembled so as to oil the bearing.

Disclosure of Invention

The utility model aims at providing a can guarantee that bearing department is lubricated, can reduce the thick liquids vibrator seal structure of lubricating oil interpolation frequency and reduction lubricating oil use amount.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a thick liquids vibrator seal structure, includes the casing, be equipped with the tamper in the casing, the tamper passes through a plurality of bearings and casing rotatable coupling, at least one side in the relative both sides of bearing axial is provided with the sealing member, the sealing member closes on the bearing, sealing member from interior to exterior includes second sealing and first sealing, first sealing is the annular and centers on the second sealing circumference outside, first sealing external diameter is greater than the internal diameter of bearing inner race, it is fixed between first sealing and casing or bearing inner race, second sealing department is formed with the opening towards the groove of accepting of bearing.

The utility model discloses set up the sealing member in bearing axial one side or axial both sides to restriction bearing department lubricating oil removes outside the bearing, leaks the volume with the reduction lubricating oil, thereby reduces lubricating oil and adds the frequency and reduce the lubricating oil use amount. When the bearing is used, the lubricating oil can move downwards to the bearing groove of the sealing part positioned on the lower side of the bearing, and along with the rotation of the vibrating rod, the lubricating oil overflowing the bearing groove or the lubricating oil positioned at the bearing groove can move and splash upwards under the driving of the vibrating rod, so that the lubrication between the inner ring and the outer ring of the bearing is ensured, and the leakage of the lubricating oil is avoided; meanwhile, the sealing element above the bearing can play a limiting role to prevent lubricating oil at the bearing from upwards separating from the bearing under the centrifugal action of the vibrating rod. The sealing element can be fixed with the bearing or the shell in various existing modes, can be fixed with the bearing by adopting a fixing mode of a conventional bearing dust ring and the bearing, can also be fixed with the bearing or the shell by adopting various modes such as glue fixing, fastener fixing, pressing fixing and the like, and can even be fixed on the bearing outer ring by welding or melting.

Preferably, yielding spaces are arranged among the sealing element, the bearing inner ring and the vibrating rod. The inner cavity of the bearing or the vibrating rod which can move and can be contacted with the stationary sealing element is not contacted, so that the sealing element can be prevented from being damaged.

Preferably, the first seal portion is fixed to the bearing outer ring in a sealed manner. The sealing element is directly contacted with the bearing, so that the leakage amount of the lubricating oil at the bearing can be further reduced.

Preferably, the middle part of the second sealing part is provided with a through hole which penetrates through the second sealing part up and down to allow the vibrating rod to pass through, so that the second sealing part is arranged in an annular shape, the second sealing part is provided with a first blocking part which extends towards the bearing side, and the bearing groove is positioned between the first blocking part and the bearing outer ring. The sealing element of this embodiment is annular, though there is the through-hole in the middle of the sealing element, when the vibrator sets up vertically and the vibrating rod rotates, can pass through centrifugal force in order to avoid overflowing the lubricating oil that the accepting groove removed to the through-hole department and spill from the through-hole department. The first blocking part limits the lubricating oil so as to prevent the lubricating oil from directly moving to the bearing inner ring or the vibrating rod.

Preferably, the seal member is provided below a lowermost bearing in the housing, the second seal portion is provided below the tamper, and the first seal portion extends in an axial direction of the tamper and is provided on a circumferential outer side of the second seal portion to form the receiving groove.

Set up the sealing member below the bearing that is located casing downside, can make the wearing parts top of casing lower extreme can form the sealed space of a lower extreme, and lubricating oil can deposit in the sealing member top, and can not continue downstream, and lubricating oil can not remove to the place of keeping away from the vibrating rod, and the rotation of vibrating rod can drive the lubricating oil activity that is located the sealing member top, can effectively utilize lubricating oil, enables the use amount of lubricating oil still less. The sealing member can not only prevent leakage of the lubricating oil but also serve to prevent entry of the slurry into the vibration portion and the circuit portion in the case.

Preferably, the middle part of the second sealing part is provided with a through hole which penetrates through the second sealing part from top to bottom for the vibrating rod to pass through, so that the second sealing part is arranged annularly, and the end face, close to the bearing, of the second sealing part is recessed inwards to form the bearing groove.

Preferably, a second blocking part extending towards the bearing side is arranged at the joint of the first sealing part and the second sealing part, the receiving groove is positioned between the first blocking part and the second blocking part, the second blocking part is positioned between the bearing outer ring and the bearing inner ring, or the bearing outer ring is provided with a yielding groove yielding to the second blocking part; the first blocking part extends to a position between the bearing outer ring and the bearing inner ring; the cross sections of the first blocking part and the second blocking part are annular and are sleeved outside the circumferential direction of the vibrating rod.

Preferably, a fixing piece is arranged on the lower side of the sealing piece, the fixing piece is fixed with the shell to limit the sealing piece between the fixing piece and the bearing, and contact sealing of the first sealing part and the outer ring of the bearing is realized; the fixing piece comprises a supporting part positioned below the second sealing part and a limiting part sleeved on the circumferential outer side of the first sealing part, and when the fixing piece and the sealing piece are fixed in the shell, the upper end face of the upper edge of the fixing piece is positioned below the upper end face of the upper edge of the sealing piece; the upper end of the first sealing part is provided with an extension part extending towards the inner wall side of the shell, and the extension part is limited between the limiting part and the bearing outer ring.

By arranging the fixing piece, the sealing piece positioned below the bearing at the lowermost side in the shell is more convenient to fix, and the sealing piece and the bearing do not need to be further designed and processed; simultaneously, the mounting can also support the bearing, need not set up the retaining ring below the bearing, so that the utility model discloses vibrator's assembly. Wherein, the spacing portion of mounting is used for playing the skeleton effect for keep the sealing portion shape, avoid the excessive deformation of sealing portion so that there is the gap between bearing and sealing member. Wherein, the setting of extension makes the fixed effect of location of sealing member better.

Preferably, the circumferential outer wall of the limiting part and the inner wall of the shell are provided with thread structures which are matched with each other, the number of the limiting parts is one, the cross section of the limiting parts is annularly arranged, or the number of the limiting parts is multiple, and the limiting parts are annularly and uniformly arranged on the supporting part at intervals; the supporting part of the fixing piece is provided with an oil filling hole which penetrates through the fixing piece up and down; the supporting part downside of mounting is equipped with and is used for sealing the sealed pad of tank filler sleeve, the casing lower extreme can be dismantled and be fixed with wear-resisting portion, wear-resisting portion is fixed with the casing and will seal up the restriction between wear-resisting portion and mounting. . The fixing piece and the shell are in threaded fixing so as to further improve the fixing and positioning effects on the sealing piece. Wherein, make spacing portion cyclic annularly, can improve the intensity of mounting, also can fix a position and protect the sealing member better. Wherein, set up the tank filler sleeve on the mounting, the sealing member corresponds tank filler sleeve department and can set up the kerf, also can not set up any hole, impales the sealing member by the syringe needle and in order to realize the interpolation of lubricating oil. Wherein, above-mentioned setting is so that the interpolation that realizes lubricating oil is more convenient, need not worry that wearing parts dismantles the outflow of lubricating oil in the back casing. The oil filling hole is sealed by the sealing gasket to avoid the leakage of lubricating oil.

Preferably, an annular groove is formed in the inner wall of the shell, an annular sealing ring is arranged in the annular groove, and the sealing ring is located between the sealing element and the shell. Through setting up the sealing washer to improve the sealed effect between sealing member and casing, further avoid the leakage of bearing department lubricating oil.

The utility model has the advantages of can guarantee that bearing department is lubricated, can reduce lubricating oil and add the frequency and reduce the lubricating oil use amount.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of the first sealing member and the fixing member in example 1;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 4 is a schematic structural diagram of embodiment 3 of the present invention;

fig. 5 is a schematic structural diagram of embodiment 4 of the present invention;

fig. 6 is a schematic structural diagram of embodiment 5 of the present invention.

Detailed Description

The invention will be further described with reference to the drawings and the specific embodiments.

By shown in fig. 1 to 6, the utility model discloses a thick liquids vibrator seal structure, including casing 1, be equipped with the stick of vibrating 11 in the casing 1, the stick of vibrating 11 is through two at least bearings and 1 rotatable coupling of casing, and the bearing is including being located the upper bearing (not drawn in the figure) of the 11 upper ends of stick of vibrating and being located the lower bearing 12 of the stick of vibrating lower extreme. At least one of the two opposite sides of the bearing in the axial direction is provided with a sealing element, the sealing element is close to the bearing, the sealing element comprises a second sealing part 21 and a first sealing part 22 from inside to outside, the first sealing part 22 is annular and surrounds the outer side of the second sealing part 21 in the circumferential direction, the outer diameter of the first sealing part 22 is larger than the inner diameter of the bearing outer ring, the first sealing part 22 is fixed with the bearing outer ring, and a bearing groove 20 with an opening facing the bearing is formed in the second sealing part 21. Wherein, yielding spaces are arranged among the sealing element, the bearing inner ring and the vibrating rod 11.

Example 1

As shown in fig. 1 and 2, the sealing member of the present embodiment includes a first sealing member 3 fixed to the lower side of a lower bearing 12, a fixing member 4 is disposed on the lower side of the first sealing member 3, and the fixing member 4 is screwed to the housing 1 to limit the first sealing member 3 between the fixing member 3 and the bearing 12, and to achieve contact sealing between a first sealing portion of the first sealing member 3 and an outer ring of the lower bearing 12. The lower end of the shell 1 is fixed with a wear-resistant part 10 through threads, and a sealing gasket 40 is arranged between the wear-resistant part 10 and the fixing part 4.

The first seal portion 22 of the first seal member 3 extends in the axial direction of the tamper bar 11 and is located circumferentially outward of the second seal portion 21 to constitute the receiving groove 20. The second sealing portion 21 of the first sealing member 3 is located below the vibrating rod 11, and the lower end of the vibrating rod 11 extends into the receiving groove 20 of the first sealing member 3. The first seal portion 22 has an extension 23 extending toward the inner wall of the housing 1 at the upper end thereof, and the extension is restricted between the upper end surface of the stator 4 and the lower end surface of the outer ring of the lower bearing 12. Wherein, the inner diameter of the lower end of the first sealing part 22 is larger than or equal to the inner diameter of the outer ring of the lower bearing 12.

The fixing member 4 includes a supporting portion 41 and a limiting portion 42 located above the supporting portion 41, the limiting portion 42 is located at the circumferential outer side of the first sealing portion 22, the supporting portion 41 is located below the second sealing portion 21, and the fixing member 4 is sleeved outside the first sealing member 3. When the fixing member 4 and the first sealing member 3 are fixed in the housing 1, the upper end surface of the upper edge of the fixing member 4 is located below the upper end surface of the upper edge of the first sealing member 3, and the extending portion 23 is supported on the upper side of the limiting portion 42. Wherein, spacing portion 42 circumference outer wall and casing 1 inner wall are formed with the helicitic texture of mutually supporting, and spacing portion 42's quantity is one and the cross section is the annular setting.

The support portion 41 of the fixing member 4 has an oil filling hole 43 vertically penetrating therethrough, the gasket 40 is for closing the oil filling hole 43, the wear-resistant portion 10 is fixed to the housing 1 and the gasket 40 is confined between the wear-resistant portion 10 and the fixing member 4.

An annular groove 13 is formed in the inner wall of the shell 1, the annular groove 13 is located below the lower bearing 12, an annular sealing ring is arranged in the annular groove 13, and the inner wall of the sealing ring is in contact with the circumferential outer wall of the first sealing element 3. Wherein the annular groove 13 can be formed by a relief groove at the internal thread of the housing 1.

Example 2

As shown in fig. 3, the present embodiment is different from embodiment 1 in that: disposed below the lower bearing 12 is a second seal rather than the first seal.

The sealing element of this embodiment includes second sealing member 5, and second sealing member 5 includes second sealing 21 and first sealing 22 from inside to outside, and first sealing 22 is annular and surrounds second sealing 21 circumference outside, and first sealing 22 external diameter is greater than the internal diameter of lower bearing 12 outer lane, and first sealing 22 is fixed with lower bearing 12 outer lane between, and second sealing 21 department is formed with the bearing groove 20 that the opening is towards the lower bearing. Wherein, yielding spaces are arranged among the second sealing element 5, the inner ring of the lower bearing 12 and the vibrating rod 11. The second sealing element 5 can be fixed with the outer ring of the lower bearing 12 by adopting various existing modes, and the second sealing element 5 can be fixed with the lower bearing 12 by adopting a mode of fixing a conventional bearing dust ring and the bearing; a fixing member may be provided at a lower side of the second sealing member 5 to confine the second sealing member 5 between the fixing member and the lower bearing; the first seal portion of the second seal 5 and the outer race of the lower bearing 12 may be fused and fixed together; the second seal 5 may also be fixed with the lower bearing 12 using glue.

The middle part of the second sealing part 21 of the second sealing part 5 is provided with a through hole 51 which penetrates through the second sealing part 5 from top to bottom for the vibrating rod to pass through, so that the second sealing part 21 is arranged in an annular shape, the second sealing part 21 is provided with a first blocking part 23 which extends towards the side of the lower bearing 12, and the receiving groove 20 is positioned between the first blocking part 23 and the outer ring of the lower bearing 12. The upper end of the first blocking part 23 extends into the space between the outer ring and the inner ring of the lower bearing 12, and the cross section of the first blocking part 23 is annularly arranged and sleeved outside the periphery of the vibrating rod 11.

Example 3

As shown in fig. 4, the present embodiment is different from embodiment 2 in that: disposed below the lower bearing 12 is a third seal 6 instead of the second seal 5.

The sealing member of this embodiment includes third sealing member 6, and third sealing member 6 includes second sealing portion 21 and first sealing portion 22 from inside to outside, and second sealing portion 21 and first sealing portion 22 integrated into one piece set up, and first sealing portion 22 is the annular and surrounds second sealing portion 21 circumference outside, and second sealing portion 21 middle part has the through-hole that supplies the vibrating spear 11 to pass through, and first sealing portion 22 external diameter (being third sealing member 6 external diameter) is greater than the internal diameter of lower bearing 12 outer lane, and first sealing portion 22 is fixed with lower bearing 12 outer lane within a definite time, and second sealing portion 21 department is formed with the accepting groove 20 of opening towards lower bearing 12. The third sealing element 6, the inner ring of the lower bearing 12 and the vibrating rod 11 are provided with abdicating spaces, wherein the innermost position of the second sealing part 21 of the third sealing element 6 is provided with a first blocking part 23 which extends towards the side of the lower bearing 12 and has an annular cross section, and the upper end of the first blocking part 23 extends between the outer ring of the lower bearing 12 and the inner ring of the lower bearing 12.

The third seal 6 differs from the second seal 5 in that: the joint of the first sealing part 22 and the second sealing part 21 of the third sealing element 6 is provided with a second blocking part 24 which extends towards the lower bearing 12 side and is annularly arranged on the cross section, the receiving groove 20 is positioned between the first blocking part 23 and the second blocking part 24, and the upper end of the second blocking part 24 is positioned between the outer ring of the lower bearing 12 and the inner ring of the lower bearing 12. The third sealing element 6 can be fixed to the lower bearing 12 by various fixing methods.

Example 4

As shown in fig. 5, the present embodiment is different from embodiment 1 in that: a fourth seal 7 is provided above the lower bearing 12.

The sealing element of the embodiment comprises a fourth sealing element 7, the fourth sealing element 7 comprises a second sealing part 21 and a first sealing part 22 from inside to outside, the second sealing part 21 and the first sealing part 22 are integrally formed, the first sealing part 22 is annular and surrounds the outer side of the circumference of the second sealing part 21, the outer diameter of the first sealing part 22 (namely the outer diameter of the fourth sealing element 7) is larger than the inner diameter of the outer ring of the lower bearing 12, the first sealing part 22 is fixed with the outer ring of the lower bearing 12, and a bearing groove 20 with an opening facing the lower bearing is formed at the second sealing part 21. Wherein, yielding spaces are arranged among the fourth sealing element 7, the inner ring of the lower bearing 12 and the vibrating rod 11. The fourth sealing element 7 can be fixed with the outer ring of the lower bearing 12 by adopting various existing modes, and the fourth sealing element 7 can be fixed with the lower bearing 12 by adopting a mode of fixing a conventional bearing dust ring and the bearing; a step may also be provided on the inner wall of the housing 1 to limit the position of the fourth seal 7 to limit the fourth seal 7 between the housing step and the lower bearing; the first seal portion of the fourth seal 7 and the outer race of the lower bearing 12 may be fused and fixed together; the fourth seal 7 may also be fixed to the lower bearing 12 by glue.

The middle part of the second sealing part 21 of the fourth sealing part 7 is provided with a through hole 71 which penetrates through the second sealing part 21 up and down for the vibrating rod to pass through, so that the second sealing part 21 is arranged in an annular shape, the second sealing part 21 is provided with a first blocking part 23 which extends towards the lower bearing 12 side, and the receiving groove 20 is positioned between the first blocking part 23 and the outer ring of the lower bearing 12. Wherein, the lower end of the first blocking part 23 extends into the space between the outer ring and the inner ring of the lower bearing 12, and the cross section of the first blocking part 23 is annularly arranged and sleeved outside the vibrating rod 11.

Example 5

As shown in fig. 6, the sealing member of this embodiment includes a fifth sealing member 8, the fifth sealing member 8 includes, from inside to outside, a second sealing portion 21, a first sealing portion 22, the second sealing portion 21 and the first sealing portion 22, the first sealing portion 22 is annular and surrounds the circumferential outer side of the second sealing portion 21, a through hole for the vibrating rod 11 to pass through is formed in the middle of the second sealing portion 21, the outer diameter of the first sealing portion 22 (i.e., the outer diameter of the fifth sealing member 8) is greater than the inner diameter of the outer ring of the lower bearing 12, the first sealing portion 22 is fixed to the outer ring of the lower bearing 12, and the upper end surface of the second sealing portion 21 is recessed to form a receiving groove 20 with an opening facing the lower bearing 12. Wherein, yielding spaces are arranged among the fifth sealing element 8, the inner ring of the lower bearing 12 and the vibrating rod 11.

Wherein, the upper end of the wear-resisting part 10 is provided with an annular pressing part 19 with an annular cross section, and the wear-resisting part 10 is fixed with the shell through threads so as to press the fifth sealing element 8 made of rubber materials between the annular pressing part 19 and the outer ring of the lower bearing 12.

The utility model has the advantages of can reduce and avoid bearing department lubricating oil to leak even, can guarantee that bearing department is lubricated, can reduce lubricating oil and add the frequency and reduce the lubricating oil use amount.

Claims (10)

1. The utility model provides a thick liquids vibrator seal structure, its characterized in that includes the casing, be equipped with the tamper in the casing, the tamper passes through a plurality of bearings and casing rotatable coupling, at least one side in the relative both sides of bearing axial is provided with the sealing member, the sealing member closes on the bearing, sealing member from interior to exterior includes second sealing and first sealing, first sealing is the annular and centers on in second sealing circumference outside, first sealing external diameter is greater than the internal diameter of bearing inner race, it is fixed between first sealing and casing or bearing inner race, second sealing department is formed with the groove of accepting of opening towards the bearing.

2. The seal structure of a paste vibrator according to claim 1, wherein a space is provided between said sealing member and said inner ring of said bearing and said vibrator.

3. The seal structure of a pulp vibrator according to claim 1, wherein said first seal portion is sealingly fixed to said bearing outer race.

4. A sealing structure of a pulp vibrator according to claim 1, 2 or 3, wherein said second sealing portion has a through hole extending therethrough in a vertical direction for passing a vibrator therethrough, so that said second sealing portion is disposed in a ring shape, said second sealing portion has a first stopper portion extending toward a bearing side, and said receiving groove is located between said first stopper portion and a bearing outer race.

5. A seal structure for a pulp vibrator according to claim 1, 2 or 3, wherein said seal member is provided below a lowermost bearing in said housing, said second seal portion is provided below the vibrator, and said first seal portion extends in an axial direction of the vibrator and is provided circumferentially outside the second seal portion to constitute said receiving groove.

6. A sealing structure of a pulp vibrator according to claim 1, 2 or 3, wherein said second sealing portion has a through hole passing therethrough from top to bottom for passing a vibrator therethrough, so that said second sealing portion is annularly disposed, and said second sealing portion is recessed adjacent to an end surface of said bearing to have said receiving groove.

7. The seal structure of a paste vibrator according to claim 4, wherein a joint of said first seal portion and said second seal portion has a second stopper portion extending toward a bearing side, said receiving groove is located between said first stopper portion and said second stopper portion, said second stopper portion is located between an outer race of said bearing and an inner race of said bearing, or said outer race of said bearing has a relief groove for relieving said second stopper portion;

the first blocking part extends to a position between the bearing outer ring and the bearing inner ring;

the cross sections of the first blocking part and the second blocking part are annular and are sleeved outside the circumferential direction of the vibrating rod.

8. The seal structure of a pulp vibrator according to claim 5, wherein a fixing member is provided on an underside of said sealing member, said fixing member being fixed to the housing to restrain the sealing member between the fixing member and the bearing and to achieve contact sealing of the first sealing portion with an outer race of the bearing;

the fixing piece comprises a supporting part positioned below the second sealing part and a limiting part sleeved on the circumferential outer side of the first sealing part, and when the fixing piece and the sealing piece are fixed in the shell, the upper end face of the upper edge of the fixing piece is positioned below the upper end face of the upper edge of the sealing piece;

the upper end of the first sealing part is provided with an extension part extending towards the inner wall side of the shell, and the extension part is limited between the limiting part and the bearing outer ring.

9. The seal structure of a pulp vibrator according to claim 8, wherein said outer circumferential wall of said position-limiting portion and said inner circumferential wall of said casing are formed with screw structures which are engaged with each other, and said position-limiting portion is one in number and arranged annularly in cross section, or said position-limiting portion is plural in number and arranged annularly and uniformly at intervals on said supporting portion;

the supporting part of the fixing piece is provided with an oil filling hole which penetrates through the fixing piece up and down;

the supporting part downside of mounting is equipped with and is used for sealing the sealed pad of tank filler sleeve, the casing lower extreme can be dismantled and be fixed with wear-resisting portion, wear-resisting portion is fixed with the casing and will seal up the restriction between wear-resisting portion and mounting.

10. The seal structure of a pulp vibrator according to claim 1, wherein said inner wall of said housing is formed with an annular groove, and an annular seal ring is disposed in said annular groove, said seal ring being located between said seal member and said housing.

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