CN209904904U - Tensioning device assembly for engineering machinery - Google Patents
Tensioning device assembly for engineering machinery Download PDFInfo
- Publication number
- CN209904904U CN209904904U CN201920558686.4U CN201920558686U CN209904904U CN 209904904 U CN209904904 U CN 209904904U CN 201920558686 U CN201920558686 U CN 201920558686U CN 209904904 U CN209904904 U CN 209904904U
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- Prior art keywords
- cylinder
- hydro
- device assembly
- tensioning device
- pull rod
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 34
- 230000000903 blocking effect Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to an engineering machine tool is with tight device assembly that rises, including the hydro-cylinder, hydro-cylinder one end have with telescopic shaft complex cavity, the other end of hydro-cylinder is the shutoff end, the telescopic shaft of the inseparable complex of cavity inner wall of hydro-cylinder, the supporting seat is installed to the shutoff end detachable of hydro-cylinder. The utility model discloses following beneficial effect has: the tensioning device assembly for the engineering machinery of the utility model does not use a spring any more, so that the production cost is greatly reduced, the weight is small, the structure is simple, the use is convenient, the problems of high failure rate, production cost and the like are avoided, and the cost performance ratio is higher; the oil cylinder integral process is adopted to replace the original welding process, the welding defect is avoided, and the original cylinder sealing structure is changed into a shaft sealing structure with better sealing performance.
Description
Technical Field
The utility model relates to an engineering machine tool is with tight device assembly that rises belongs to engineering machine tool technical field.
Background
The tensioning device assembly has the advantages that the tensioning device assembly is used for absorbing force generated by repeated change of the length of a track, the guide wheel assembly keeps reasonable tensioning force on the track when the excavator is adjusted to walk, the track is prevented from falling off and is usually installed at the position of a chassis of the excavator, the traditional tensioning device assembly comprises a spring, a shaft, an oil cylinder, a fork ring, a nut, a pull rod, a sealing assembly, an oil injection valve, a locking plate, a bolt and the like, and the tensioning device is complex in structure, multiple in parts and high in production cost and failure rate.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the tensioning device assembly solves the problems of high production cost and high failure rate caused by complex structure and multiple parts of the traditional tensioning device assembly, improves the reliability of the tensioning device assembly, prolongs the service life of the tensioning device assembly, and reduces the production and use costs.
Engineering machine tool with tight device assembly that rises, including the hydro-cylinder, hydro-cylinder one end have with telescopic shaft complex cavity, the other end of hydro-cylinder is the shutoff end, the telescopic shaft of the cavity inner wall of hydro-cylinder closely matched with, the supporting seat is installed to the shutoff end detachable of hydro-cylinder.
Preferably, the oil cylinder is integrally forged and formed. The traditional oil cylinder is of a segmented welding structure, and the whole process of the oil cylinder is adopted to replace the original welding process, so that the welding defect is avoided.
Preferably, the telescopic shaft is a No. 45 steel integrally-forged telescopic shaft. Has higher strength and better cutting processability, is convenient to obtain materials and meets the processing requirement.
Preferably, the supporting seat comprises a seat body which is arranged in a hollow mode, a connecting end plate is arranged at one end of the seat body and is tightly pressed on the end face of the blocking end of the oil cylinder, a flange plate is arranged on the outer wall of the other end of the seat body, and a plurality of bolt connecting holes are formed in the flange plate. As an intermediate connecting structure for connecting the tensioning device assembly and the guide wheel assembly.
Preferably, the base body, the connecting end plate, the flange plate and the connecting rib are integrally cast and formed, the base body is of a conical table structure with one thick end and one thin end, and the flange plate is arranged on the outer wall of the large-diameter section of the base body. The weight is reduced, the connection is convenient, and the stress of the workpiece is more stable and uniform.
Preferably, the supporting seat is detachably mounted on the oil cylinder through a pull rod assembly, the pull rod assembly comprises a pull rod and a nut, external threads are arranged at two ends of the pull rod, a threaded hole matched with the external threads is formed in the end face of the oil cylinder plugging end, the threaded hole and the cavity of the oil cylinder are coaxially arranged, a through hole for the pull rod to pass through is formed in the connecting end plate, the upper end of the pull rod is connected with the oil cylinder, the lower end of the pull rod passes through the through hole and is in threaded connection with the nut, and the nut screwed on the pull rod tightly presses the connecting end plate onto the end face of the. The structure of the workpiece is simplified, the stress of the workpiece is uniform, and the workpiece is convenient to assemble, disassemble and maintain.
Preferably, a dustproof ring mounting groove is formed in the end face of the opening end of the oil cylinder, a dustproof ring is arranged in the dustproof ring mounting groove, and an inner ring of the dustproof ring is abutted to the telescopic shaft; the oil cylinder cavity is close to and has seted up a shaft seal assembly mounting groove on the open-ended one end inner wall, is provided with a shaft seal assembly in the shaft seal assembly mounting groove, and shaft seal assembly's inner circle supports with the telescopic shaft and leans on. The shaft sealing structure is changed from the original cylinder sealing structure into the shaft sealing structure with better sealing performance, the shaft sealing assembly is arranged in the oil cylinder, the inserted shaft section is made into a smooth cylindrical surface, the sealing assembly and the inserted shaft section cylindrical surface are tightly combined in the cylinder to form a closed structure, lubricating oil is prevented from seeping, and impurities such as gravel and the like are effectively prevented from entering the cavity of the oil cylinder by additionally arranging the dustproof ring.
Preferably, the nut is provided with a clamping plate for stopping the nut. The anti-loose and anti-vibration device has great anti-loose and anti-vibration capabilities and prolongs the time limit of maintenance.
Preferably, the piston head and the insertion shaft section are respectively connected to two side faces of the platform, the insertion shaft section is inserted into the cavity of the oil cylinder, the outer diameter of the platform is larger than that of the insertion shaft section, and the outer diameter of the piston head is smaller than that of the insertion shaft section. The outer diameter of the piston head is used for being matched and connected with other workpieces, the outer diameter of the inserted shaft section is large so as to reduce the pressure on the surface of the sealing element, and the tensioning device bears larger force.
Compared with the prior art, the utility model discloses following beneficial effect has:
the tensioning device assembly for the engineering machinery of the utility model does not use a spring any more, so that the production cost is greatly reduced, the weight is small, the structure is simple, the use is convenient, the problems of high failure rate, production cost and the like are avoided, and the cost performance ratio is higher; the oil cylinder integral process is adopted to replace the original welding process, the welding defect is avoided, and the original cylinder sealing structure is changed into a shaft sealing structure with better sealing performance.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. the telescopic shaft comprises a telescopic shaft 1.1, an inserted shaft section 1.2, a platform 1.3, a piston head 2, a dust ring 3, a shaft sealing component 4, an oil cylinder 5, a pull rod 6, a supporting seat 6.1, a seat body 6.2, a connecting end plate 6.3, a flange plate 6.4, a connecting rib 6.5, a bolt connecting hole 7 and a nut.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Examples
As shown in fig. 1, the tensioning device assembly for engineering machinery comprises an oil cylinder 4, wherein one end of the oil cylinder 4 is provided with a cavity matched with a telescopic shaft 1, the other end of the oil cylinder 4 is a plugging end, the telescopic shaft 1 is tightly matched with the inner wall of the cavity of the oil cylinder 4, and a supporting seat 6 is detachably arranged at the plugging end of the oil cylinder 4.
In the embodiment, the oil cylinder 4 is integrally forged and formed; the telescopic shaft 1 is a No. 45 steel integrally forged telescopic shaft; the supporting seat 6 comprises a seat body 6.1 which is arranged in a hollow mode, one end of the seat body 6.1 is provided with a connecting end plate 6.2, the connecting end plate 6.2 is tightly pressed on the end face of the blocking end of the oil cylinder 4, the outer wall of the other end of the seat body 6.1 is provided with a flange 6.3, and the flange 6.3 is provided with a plurality of bolt connecting holes 6.5; the base body 6.1, the connecting end plate 6.2, the flange 6.3 and the connecting rib 6.4 are integrally cast, the base body 6.1 is of a conical table structure with one thick end and one thin end, and the flange 6.3 is arranged on the outer wall of the large-diameter section of the base body 6.1; the supporting seat 6 is detachably mounted on the oil cylinder 4 through a pull rod assembly, the pull rod assembly comprises a pull rod 5 and a nut 7, external threads are arranged at two ends of the pull rod 5, a threaded hole matched with the external threads is formed in the end face of the blocking end of the oil cylinder 4, the threaded hole and the cavity of the oil cylinder 4 are coaxially arranged, a through hole for the pull rod 5 to penetrate through is formed in a connecting end plate 6.2, the upper end of the pull rod 5 is connected with the oil cylinder 4, the lower end of the pull rod 5 penetrates through the through hole and is in threaded connection with the nut 7, and the nut 7 screwed on the pull rod 5 tightly presses the connecting end plate 6.2 to the end face of the blocking end; a dustproof ring mounting groove is formed in the end face of the opening end of the oil cylinder 4, a dustproof ring 2 is arranged in the dustproof ring mounting groove, and the inner ring of the dustproof ring 2 abuts against the telescopic shaft 1; a shaft seal assembly mounting groove is formed in the inner wall of one end, close to the opening, of the cavity of the oil cylinder 4, a shaft seal assembly 3 is arranged in the shaft seal assembly mounting groove, and the inner ring of the shaft seal assembly 3 abuts against the telescopic shaft 1; the nut 7 is provided with a clamping plate for stopping the nut; the coaxial-arranged inserting shaft section 1.1, the platform 1.2 and the piston head 1.3 are respectively connected with the piston head 1.3 and the inserting shaft section 1.1 on the two side surfaces of the platform 1.2, the inserting shaft section 1.1 is inserted into the cavity of the oil cylinder 4, the outer diameter of the platform 1.2 is larger than that of the inserting shaft section 1.1, and the outer diameter of the piston head 1.3 is smaller than that of the inserting shaft section 1.1.
The utility model discloses theory of operation of embodiment: lithium-based lubricating grease is filled into the oil cylinder 4, the lithium-based lubricating grease in the oil cylinder 4 is compressed by the telescopic shaft to realize tensioning, the length of the tensioning device is adjusted by adjusting the telescopic amount of the shaft, and specifically, the extension amount of the shaft is increased by injecting oil, so that the length of the tensioning assembly is adjusted.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an engineering machine tool is with tight device assembly that rises which characterized in that: including hydro-cylinder (4), hydro-cylinder (4) one end have with telescopic shaft (1) complex cavity, the other end of hydro-cylinder (4) is the shutoff end, telescopic shaft (1) of the cavity inner wall of hydro-cylinder (4) closely matched with, supporting seat (6) are installed to the shutoff end detachable of hydro-cylinder (4).
2. The tensioning device assembly for engineering machinery as claimed in claim 1, wherein: the oil cylinder (4) is integrally forged and formed.
3. The tensioning device assembly for engineering machinery as claimed in claim 2, wherein: the telescopic shaft (1) is a No. 45 steel integrally-forged telescopic shaft.
4. The tensioning device assembly for engineering machinery as claimed in claim 1, wherein: the supporting seat (6) comprises a seat body (6.1) which is arranged in a hollow mode, a connecting end plate (6.2) is arranged at one end of the seat body (6.1), the connecting end plate (6.2) is tightly pressed on the end face of the plugging end of the oil cylinder (4), a flange plate (6.3) is arranged on the outer wall of the other end of the seat body (6.1), and a plurality of bolt connecting holes (6.5) are formed in the flange plate (6.3).
5. The tensioning device assembly for engineering machinery as claimed in claim 4, wherein: the seat body (6.1), the connecting end plate (6.2), the flange plate (6.3) and the connecting rib (6.4) are integrally cast and formed, the seat body (6.1) is of a conical table structure with one thick end and one thin end, and the flange plate (6.3) is arranged on the outer wall of the large-diameter section of the seat body (6.1).
6. The tensioning device assembly for engineering machinery as claimed in claim 5, wherein: install supporting seat (6) detachable on hydro-cylinder (4) through pull rod assembly, pull rod assembly includes pull rod (5) and nut (7), and the both ends of pull rod (5) all are provided with the external screw thread, set up external screw thread matched with screw hole on the terminal surface of hydro-cylinder (4) shutoff end, the through-hole that supplies pull rod (5) to pass is seted up to the coaxial setting of cavity of screw hole and hydro-cylinder (4) on connecting end plate (6.2), and the upper end and hydro-cylinder (4) of pull rod (5) are connected, and the lower extreme of pull rod (5) passes through-hole and nut (7) threaded connection, and nut (7) of screwing on pull rod (5) will connect end plate (6.2) compress tightly in on the terminal surface of hydro-cylinder (4) shutoff end.
7. The tensioning device assembly for engineering machinery as claimed in claim 6, wherein: a dustproof ring mounting groove is formed in the end face of the opening end of the oil cylinder (4), a dustproof ring (2) is arranged in the dustproof ring mounting groove, and the inner ring of the dustproof ring (2) abuts against the telescopic shaft (1); a shaft seal assembly mounting groove is formed in the inner wall, close to the opening, of the cavity of the oil cylinder (4), a shaft seal assembly (3) is arranged in the shaft seal assembly mounting groove, and the inner ring of the shaft seal assembly (3) abuts against the telescopic shaft (1).
8. The tensioning device assembly for engineering machinery as claimed in claim 7, wherein: and the nut (7) is provided with a clamping plate.
9. The tensioning device assembly for engineering machinery as claimed in claim 8, wherein: the coaxial-arranged inserting shaft section (1.1), the platform (1.2) and the piston head (1.3) are connected with the piston head (1.3) and the inserting shaft section (1.1) on the two side faces of the platform (1.2) respectively, the inserting shaft section (1.1) is inserted into a cavity of the oil cylinder (4), the outer diameter of the platform (1.2) is larger than that of the inserting shaft section (1.1), and the outer diameter of the piston head (1.3) is smaller than that of the inserting shaft section (1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558686.4U CN209904904U (en) | 2019-04-23 | 2019-04-23 | Tensioning device assembly for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558686.4U CN209904904U (en) | 2019-04-23 | 2019-04-23 | Tensioning device assembly for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209904904U true CN209904904U (en) | 2020-01-07 |
Family
ID=69045199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920558686.4U Expired - Fee Related CN209904904U (en) | 2019-04-23 | 2019-04-23 | Tensioning device assembly for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209904904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170774A (en) * | 2020-09-22 | 2021-01-05 | 浙江继望锻造科技有限公司 | Casting, forging and quenching integrated production process for forging bucket teeth |
-
2019
- 2019-04-23 CN CN201920558686.4U patent/CN209904904U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170774A (en) * | 2020-09-22 | 2021-01-05 | 浙江继望锻造科技有限公司 | Casting, forging and quenching integrated production process for forging bucket teeth |
| CN112170774B (en) * | 2020-09-22 | 2022-04-12 | 浙江继望锻造科技有限公司 | Casting, forging and quenching integrated production process for forging bucket teeth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |