CN210978875U - Reinforced lightweight central swivel joint - Google Patents
Reinforced lightweight central swivel joint Download PDFInfo
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- CN210978875U CN210978875U CN201921955042.5U CN201921955042U CN210978875U CN 210978875 U CN210978875 U CN 210978875U CN 201921955042 U CN201921955042 U CN 201921955042U CN 210978875 U CN210978875 U CN 210978875U
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- swivel
- shell
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- oil grooves
- boss
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Abstract
A reinforced lightweight central swivel joint comprises an electric block assembly, a spacer disc, a swivel shaft and a swivel shell, and is characterized in that reinforcing ribs are arranged outside the swivel shell, an integrated boss is further arranged outside the swivel shell and connected with the reinforcing ribs, the integrated boss is provided with 7 oil ports, a plurality of axial oil grooves are formed in the swivel shaft, a plurality of annular oil grooves communicated with the axial oil grooves are formed in the outer wall of the swivel shaft, 4 oil ports of the integrated boss are communicated with the annular oil grooves of the swivel shaft, 3 oil ports of the integrated boss are communicated with the annular oil grooves of the swivel shaft through process holes, the swivel shell is sleeved on the swivel shaft, and the electric block assembly is connected with the swivel shell through the spacer disc; the strengthening rib of gyration casing, integral type boss and the annular oil groove of revolving axle have realized central rotary joint's lightweight design, have improved central rotary joint's intensity simultaneously, and sealed effectual, the practicality is strong.
Description
Technical Field
The utility model relates to a central swivel joint especially relates to a strenghthened type lightweight central authorities swivel joint.
Background
The chassis of the engineering machinery such as an excavator and the like and the upper body do relative rotary motion, and the central rotary joint is used for ensuring the supply of a hydraulic oil way during the rotary motion. When the excavator does the rotation action, the hydraulic oil is conveyed to the walking motor through the central joint. The development trend of the excavator is light weight, and the important problem to be solved by designers is to reduce the weight of a central swivel joint under the condition of ensuring the service performance.
Disclosure of Invention
In order to solve the problem, the utility model provides a strenghthened type lightweight central authorities swivel joint provides one kind and can alleviate swivel housing weight, can strengthen the central authorities swivel joint of central authorities' swivel joint intensity again. In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a strenghthened type lightweight central swivel joint, includes electricity piece assembly, separation disc, revolving axle and gyration casing, the outside of gyration casing is provided with the strengthening rib, and the outside of gyration casing still is provided with the integral type boss, the integral type boss is connected with the strengthening rib, and the integral type boss is provided with 7 hydraulic fluid ports, be provided with a plurality of axial oil grooves in the revolving axle, be provided with a plurality of annular oil grooves with axial oil groove intercommunication on the revolving axle outer wall, 4 hydraulic fluid ports of integral type boss and the annular oil groove intercommunication of revolving axle, 3 hydraulic fluid ports of integral type boss pass through the annular oil groove intercommunication of fabrication hole with the revolving axle, and the gyration casing cover is established on the revolving axle, electricity piece.
Furthermore, the two sides of the annular oil groove are provided with high-pressure rotating combined sealing rings, so that the oil leakage can be prevented.
Furthermore, a low-pressure O-shaped sealing ring is arranged between the upper part of the rotating shaft and the upper part of the rotating shell.
Further, the number of the reinforcing ribs is set to be 6.
Further, the tail end of integral type boss is provided with square shift fork, and the cooperation spanner is installed, need not additionally to weld the shift fork.
Compared with the prior art, the utility model discloses following beneficial effect has: the strengthening rib of gyration casing, integral type boss and the annular oil groove of revolving axle have realized central rotary joint's lightweight design, have improved central rotary joint's intensity simultaneously, and sealed effectual, the practicality is strong.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention;
in the drawings: 1. the electric block assembly comprises an electric block assembly, 2, a partition disc, 3, a rotating shaft, 4, a rotating shell, 5, reinforcing ribs, 6, an integrated boss, 8, an axial oil groove, 9, an annular oil groove, 10, a high-pressure rotating combined sealing ring, 11, a low-pressure O-shaped sealing ring, 12 and a square shifting fork.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described with reference to fig. 1 and the specific embodiments.
As shown in the attached drawing 1, a strenghthened type lightweight central swivel joint, including electric block assembly 1, spacer disc 2, revolving axle 3 and gyration casing 4, the outside of gyration casing 4 is provided with strengthening rib 5, and the outside of gyration casing 4 still is provided with integral type boss 6, integral type boss 6 is connected with strengthening rib 5, and integral type boss 6 is provided with 7 hydraulic fluid ports, be provided with the axial oil groove 8 of predetermineeing quantity in the revolving axle 3, be provided with the annular oil groove 9 of predetermineeing quantity and axial oil groove intercommunication on the 3 outer walls of revolving axle, 4 hydraulic fluid ports of integral type boss 6 and the annular oil groove 9 intercommunication of revolving axle 3, 3 hydraulic fluid ports of integral type boss 6 pass through fabrication hole and the annular oil groove 9 intercommunication of revolving axle 3, and 4 covers of gyration casing are established on revolving axle 3, electric block assembly 1 is connected with gyration casing 4 through spacer disc.
Furthermore, the two sides of the annular oil groove 9 are provided with high-pressure rotating combined sealing rings 10, so that the oil leakage can be prevented.
Further, a low pressure O-ring 11 is provided between the upper portion of the rotary shaft 3 and the upper portion of the rotary casing 4.
Further, the number of the reinforcing ribs 5 is set to 6.
Further, the tail end of the integrated boss 6 is provided with a square shifting fork 12, and the shifting fork is installed in a matched mode through a wrench without additionally welding.
The utility model discloses a theory of operation and working process as follows: in the in-service use process, the casting external diameter of gyration casing 4 reduces and sets up 6 strengthening ribs 5 to link to each other with integral type boss 6, open 7 hydraulic fluid ports on the same plane of integral type boss 6, the tail end of integral type boss 6 is square shift fork, and the cooperation spanner is installed, need not additionally to weld the shift fork. The reinforcing ribs 5 and the integrated bosses 6 of the rotary shell 4 and the annular oil grooves 9 of the rotary shaft 3 realize the light-weight design of the central rotary joint, and the integrated bosses 6 reduce the processing procedures and the production cost.
Compared with the prior art, the utility model discloses following beneficial effect has: the strengthening rib of gyration casing, integral type boss and the annular oil groove of revolving axle have realized central rotary joint's lightweight design, have improved central rotary joint's intensity simultaneously, and sealed effectual, the practicality is strong.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.
Claims (5)
1. A reinforced lightweight central swivel joint comprises an electric block assembly (1), a partition disc (2), a swivel shaft (3) and a swivel shell (4), and is characterized in that reinforcing ribs (5) are arranged outside the swivel shell (4), an integrated boss (6) is further arranged outside the swivel shell (4), the integrated boss (6) is connected with the reinforcing ribs (5), 7 oil ports are formed in the integrated boss (6), axial oil grooves (8) with preset quantity are formed in the swivel shaft (3), annular oil grooves (9) with preset quantity communicated with the axial oil grooves are formed in the outer wall of the swivel shaft (3), 4 oil ports of the integrated boss (6) are communicated with the annular oil grooves (9) of the swivel shaft (3), and 3 oil ports of the integrated boss (6) are communicated with the annular oil grooves (9) of the swivel shaft (3) through process holes, the rotary shell (4) is sleeved on the rotary shaft (3), and the electric block assembly (1) is connected with the rotary shell (4) through the partition disc (2).
2. An enhanced lightweight central swivel joint according to claim 1, characterized in that high pressure rotary combined sealing rings (10) are provided on both sides of the annular oil groove (9).
3. An enhanced lightweight central swivel joint according to claim 1, wherein a low pressure O-ring (11) is provided between the upper part of the swivel shaft (3) and the upper part of the swivel housing (4).
4. An enhanced lightweight central swivel joint according to claim 1, wherein the number of the reinforcing ribs (5) is set to 6.
5. An enhanced lightweight central swivel joint according to claim 1, characterized in that the end of the integrated boss (6) is provided with a square fork (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955042.5U CN210978875U (en) | 2019-11-13 | 2019-11-13 | Reinforced lightweight central swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955042.5U CN210978875U (en) | 2019-11-13 | 2019-11-13 | Reinforced lightweight central swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978875U true CN210978875U (en) | 2020-07-10 |
Family
ID=71447421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921955042.5U Active CN210978875U (en) | 2019-11-13 | 2019-11-13 | Reinforced lightweight central swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978875U (en) |
-
2019
- 2019-11-13 CN CN201921955042.5U patent/CN210978875U/en active Active
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