CN218326777U - High-strength light rotary joint - Google Patents
High-strength light rotary joint Download PDFInfo
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- CN218326777U CN218326777U CN202221918085.8U CN202221918085U CN218326777U CN 218326777 U CN218326777 U CN 218326777U CN 202221918085 U CN202221918085 U CN 202221918085U CN 218326777 U CN218326777 U CN 218326777U
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Abstract
The utility model discloses a high-strength light rotary joint, which comprises a rotary body, wherein a rotary shaft is arranged in an inner hole of the rotary body in a matching way; the outer surface of the rotating shaft is provided with oil grooves and sealing grooves, the oil grooves and the sealing grooves are arranged at intervals, the distance between each two adjacent oil grooves and the corresponding sealing groove is set to be X, and the X is 3-5mm; the revolving body is arranged to be cylindrical, the inner wall of the revolving body is smooth, the wall thickness of the revolving body is H, and H is less than 12mm; the rotating shaft is an integrally formed stepped shaft and comprises a shaft a and a shaft b, and the diameter of the shaft b is smaller than that of the shaft a; the oil groove and the sealing groove are arranged on the shaft b of the rotating shaft. The rotary joint assembly has the advantages of being compact in structure, good in stability and convenient to process, greatly improving assembly efficiency, reducing processing cost, and effectively solving the technical problems that the requirement on the space for mounting the rotary joint on the whole machine is also large, the length of the rotary joint assembly is large, the cost is not controlled and the like due to the fact that the outer diameter of the rotary body is large, the weight is heavy, the appearance of the rotary joint assembly is large.
Description
Technical Field
The utility model relates to a revolution mechanic's field especially relates to a high strength light swivel joint.
Background
The rotary joint comprises a rotary shaft and a rotary body, and in the prior art, oil grooves of the rotary joint for the large-load aerial work platform are all placed on the surface of an inner hole of the rotary body, so that the wall thickness of the rotary body is large, namely the outer diameter of the rotary body is large, the weight is heavy, the appearance of a rotary joint assembly is large, and the requirement on the space for installing the rotary joint on the whole machine is also large. In the prior art, a sealing groove of a rotary joint is also arranged on the surface of an inner hole of a rotary body, so that the machining efficiency of the sealing groove is low, and the machining cost is high; and because the revolution solid is generally made of nodular cast iron, a large distance (generally 6-10 mm) needs to be reserved between the seal groove and the oil groove in order to ensure the strength, so that the length of the revolution joint assembly is large, and the cost control is not favorable. There is therefore a need for an improved construction of swivel joints.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide a be convenient for processing, assembly efficiency height, practice thrift the rotary joint of cost.
In order to achieve the above purpose, the technical scheme of the utility model is to provide a high-strength light rotary joint, which comprises a rotary body, wherein a rotary shaft is arranged in an inner hole of the rotary body in a matching way; the outer surface of the rotating shaft is provided with oil grooves and sealing grooves, the oil grooves and the sealing grooves are arranged at intervals, the distance between every two adjacent oil grooves and the adjacent sealing grooves is set to be X, and the X is 3-5mm; the rotary body is cylindrical, the inner wall of the rotary body is smooth, and the wall thickness of the rotary body is H which is less than 12mm.
Preferably: the rotating shaft is an integrally formed stepped shaft and comprises a shaft a and a shaft b, and the diameter of the shaft b is smaller than that of the shaft a; the oil groove and the sealing groove are arranged on a shaft b of the rotating shaft.
Preferably: the diameter difference between the shaft a and the shaft b of the rotating shaft is set to be delta phi, and the delta phi is set to be 5mm.
Preferably: the oil groove comprises an oil groove a and an oil groove b, and the depth of the oil groove a is smaller than that of the oil groove b.
Preferably: one end of the rotating shaft is provided with an oil hole a extending along the axial direction, one end of the oil hole b is vertically arranged with the oil hole a in a penetrating way, and the other end of the oil hole b is communicated with the oil groove b.
Preferably: one end of the rotating shaft is also provided with an oil hole c extending along the axial direction, one end of the oil hole d is vertically arranged with the oil hole c in a penetrating way, and the other end of the oil hole d is communicated with the oil groove a.
Preferably: the diameter of the oil hole a is larger than that of the oil hole c, and the length of the oil hole a is larger than that of the oil hole c.
The utility model has the advantages as follows: 1. the oil grooves and the sealing grooves are arranged on the small-diameter section shaft b of the rotating shaft, so that the diameter of the small-diameter section shaft b needs to be correspondingly increased to ensure the strength of the rotating shaft, the diameter difference between the large-diameter section shaft a and the small-diameter section shaft b is correspondingly reduced, and the processing cost of the excircle of the small-diameter section shaft b is saved; because the oil groove is arranged on the revolving shaft, the wall thickness of the revolving body can be greatly reduced, the usage amount of raw materials of the revolving body is effectively reduced, and the material cost of the revolving body is greatly reduced; not only the technical purpose of high strength and light weight is achieved; the working time of oil groove processing can be reduced, the oil groove processing efficiency is improved, and the processing cost is reduced; the production cost is saved;
2. the oil grooves and the sealing grooves are arranged on the outer circle of the small-diameter section of the rotating shaft, the inner hole of the rotating body is cylindrical, the inner wall is smooth, the inner hole of the rotating body is machined without turning grooves, the requirement can be met only by using a steel pipe with a honed inner hole, the machining difficulty is greatly reduced, and meanwhile, the raw material cost and the machining cost are also reduced;
3. because the material of the rotating shaft is generally a steel piece and is strengthened through heat treatment, the material strength is higher, the sealing groove and the oil groove are arranged at the outer circle of the rotating shaft, the distance between the sealing groove and the oil groove can be properly reduced to be generally 3-4mm, the lengths of the rotating body and the rotating shaft can be reduced, and the cost of raw materials is effectively reduced;
4. the sealing groove is arranged on the outer circle of the small-diameter section of the rotating shaft, so that the sealing ring is simple to assemble, and the assembling efficiency can be greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of fig. 1 of the present invention;
1. a revolving body; 2. a rotating shaft; 2-1. Axis a;2-2. Axis b;3. an oil sump; 3-1, oil groove a;3-2, oil groove b;4. a sealing groove; 5. an oil hole a;6. an oil hole b;7. an oil hole c;8. and an oil hole d.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
A high-strength light rotary joint comprises a rotary body 1, wherein a rotary shaft 2 is arranged in an inner hole of the rotary body 1 in a matched manner; the outer surface of the rotating shaft 2 is provided with an oil groove 3 and a sealing groove 4, the oil groove 3 and the sealing groove 4 are arranged at intervals, the distance between the adjacent oil grooves 3 and the adjacent sealing grooves 4 is set to be X, and the X is 3-5mm; the revolving body 1 is cylindrical, the inner wall of the revolving body is smooth, and the wall thickness of the revolving body is H which is less than 12mm.
Because the revolving body is made of nodular cast iron, in order to ensure the strength, a larger distance, generally 6-10mm, needs to be reserved between the sealing groove and the oil groove, so that the revolving joint assembly has a larger length and is unfavorable for cost control. The material of the revolving shaft is steel and is strengthened through heat treatment, and the material strength is higher, so that compared with the situation that the oil groove 3 and the sealing groove 4 are arranged on the revolving body 1, the oil groove 3 and the sealing groove 4 are arranged on the revolving shaft 2, the distance between the sealing groove and the oil groove can be properly reduced to 3-4mm; the length of the revolving body and the revolving shaft can be effectively reduced, and the cost of raw materials is effectively reduced.
The rotating shaft 2 is arranged as an integrally formed stepped shaft and comprises a shaft a2-1 and a shaft b2-2, and the diameter of the shaft b2-2 is smaller than that of the shaft a 2-1; the oil groove 3 and the sealing groove 4 are arranged on the shaft b2-2 of the rotating shaft.
The oil grooves 3 and the sealing grooves 4 are formed in the outer circle of the small-diameter section shaft b2-2 of the rotating shaft, in order to guarantee the strength of the rotating shaft 2, the diameter of the shaft b can be correspondingly increased, the diameter difference between the outer circle of the large-diameter section shaft a2-1 and the outer circle of the small-diameter section shaft b2-2 can be correspondingly reduced, the raw material used for the rotating shaft is round steel, the diameter difference of the stepped shaft is reduced, the machining cost of the outer circle of the small-diameter section shaft a2-1 of the rotating shaft can be reduced, and therefore the effect of saving machining cost is achieved. Meanwhile, the oil grooves 3 and the sealing grooves 4 are arranged on the revolving shaft, so that the wall thickness of the revolving body can be greatly reduced, the use amount of raw materials of the revolving body is effectively reduced, and the material cost of the revolving body is greatly reduced; and be convenient for the processing of oil groove 3 and seal groove 4, greatly reduced oil groove 3 and seal groove 4's the processing degree of difficulty reduces oil groove 3 and seal groove 4 processing man-hour, has improved the machining efficiency of oil groove 3 and seal groove 4 greatly. And the processing of the inner hole of the revolving body does not need turning, and the requirement can be met only by using the steel pipe after the inner hole is honed, thereby reducing the raw material cost and the processing cost.
When the method is specifically implemented, the diameter difference between the shaft a2-1 and the shaft b2-2 of the rotating shaft is set to be delta phi, and the delta phi is set to be 5mm, so that the processing amount of the rotating shaft is greatly reduced, and the processing cost is saved. The oil groove 3 comprises an oil groove a3-1 and an oil groove b3-2, and the depth of the oil groove a3-1 is smaller than that of the oil groove b 3-2. One end of the rotating shaft 2 is provided with 3 oil holes a5 extending along the axial direction, one end of each oil hole b6 is vertically communicated with the corresponding oil hole a5, and the other end of each oil hole b6 is communicated with the corresponding oil groove b 3-2. One end of the rotating shaft 2 is also provided with 2 oil holes c7 extending along the axial direction; one end of the oil hole d8 is vertically penetrated with the oil hole c7, and the other end of the oil hole d8 is communicated with the oil groove a 3-1. The diameter of the oil hole a5 is larger than that of the oil hole c7, and the length of the oil hole a5 is larger than that of the oil hole c 7; effectively avoid the oil circuit to take place to disturb.
The utility model discloses compact structure, stability is good, and the processing of being convenient for has improved assembly efficiency greatly, reduces the processing cost, has effectively solved that the solid of revolution external diameter is great, weight is heavier, the great space requirement that leads to installation swivel joint to the whole quick-witted installation swivel joint of swivel joint assembly appearance is also great, swivel joint assembly length is great, to the unfavorable scheduling technical problem of cost control.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the technical principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention.
Claims (7)
1. A high-strength light rotary joint comprises a rotary body (1), wherein a rotary shaft (2) is arranged in an inner hole of the rotary body (1) in a matched manner; the method is characterized in that: the outer surface of the rotating shaft (2) is provided with oil grooves (3) and sealing grooves (4), the oil grooves (3) and the sealing grooves (4) are arranged at intervals, the distance between the adjacent oil grooves (3) and the adjacent sealing grooves (4) is set to be X, and the X is 3-5mm; the revolving body (1) is cylindrical, the inner wall of the revolving body is smooth, and the wall thickness of the revolving body is H which is less than 12mm.
2. A high strength lightweight swivel joint as claimed in claim 1, wherein: the rotating shaft (2) is arranged to be an integrally formed stepped shaft and comprises a shaft a (2-1) and a shaft b (2-2), and the diameter of the shaft b (2-2) is smaller than that of the shaft a (2-1); the oil groove (3) and the sealing groove (4) are arranged on a shaft b (2-2) of the rotating shaft.
3. A high strength lightweight swivel joint as claimed in claim 2, wherein: the diameter difference between the shaft a (2-1) and the shaft b (2-2) of the rotating shaft is set to be delta phi, and the delta phi is set to be 5mm.
4. A high strength lightweight swivel joint as claimed in claim 1, wherein: the oil groove (3) comprises an oil groove a (3-1) and an oil groove b (3-2), and the depth of the oil groove a (3-1) is smaller than that of the oil groove b (3-2).
5. A high strength lightweight swivel joint as claimed in claim 1, wherein: one end of the rotating shaft (2) is provided with an oil hole a (5) extending along the axial direction, one end of an oil hole b (6) is vertically arranged with the oil hole a (5) in a penetrating way, and the other end of the oil hole b (6) is communicated with the oil groove b (3-2).
6. A high strength lightweight swivel joint as claimed in claim 1, wherein: one end of the rotating shaft (2) is also provided with an oil hole c (7) extending along the axial direction, one end of an oil hole d (8) is vertically penetrated with the oil hole c (7), and the other end of the oil hole d (8) is communicated with the oil groove a (3-1).
7. A high strength lightweight swivel joint as claimed in claim 5, wherein: the diameter of the oil hole a (5) is larger than that of the oil hole c (7), and the length of the oil hole a (5) is larger than that of the oil hole c (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221918085.8U CN218326777U (en) | 2022-07-25 | 2022-07-25 | High-strength light rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221918085.8U CN218326777U (en) | 2022-07-25 | 2022-07-25 | High-strength light rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218326777U true CN218326777U (en) | 2023-01-17 |
Family
ID=84872149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221918085.8U Active CN218326777U (en) | 2022-07-25 | 2022-07-25 | High-strength light rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218326777U (en) |
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2022
- 2022-07-25 CN CN202221918085.8U patent/CN218326777U/en active Active
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