CN202465139U - Double-oil cylinder rotating device for lorry-mounted crane - Google Patents
Double-oil cylinder rotating device for lorry-mounted crane Download PDFInfo
- Publication number
- CN202465139U CN202465139U CN201220050263XU CN201220050263U CN202465139U CN 202465139 U CN202465139 U CN 202465139U CN 201220050263X U CN201220050263X U CN 201220050263XU CN 201220050263 U CN201220050263 U CN 201220050263U CN 202465139 U CN202465139 U CN 202465139U
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- cylinder
- rack
- piston
- lorry
- mounted crane
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Abstract
The utility model discloses a double-oil cylinder rotating device for a lorry-mounted crane, and belongs to the field of rotating oil cylinders. By the double-oil cylinder rotating device, a mounting space for a large-tonnage lorry-mounted crane is reduced, and a rotating mechanism of the large-tonnage lorry-mounted crane is compact in structure. In order to solve the technical problem, the technical scheme is that: a gear is arranged on the lower end part of a gear shaft; a first rotating rack cylinder and a second rotating rack cylinder are arranged in parallel with a base beam, and are symmetrically distributed on the two sides of the gear shaft; the gear on the gear shaft is meshed with racks in the first and second rotating rack cylinders respectively; and the structures of the first and second rotating rack cylinders are the same. The device can be widely applied to the field of rotating oil cylinders of the cranes.
Description
Technical field
Two oil cylinder turning gears of a kind of lorry-mounted crane of the utility model belong to the angling cylinder technical field, particularly relate to a kind of angling cylinder of lorry-mounted crane.
Background technology
The gyroscopic movement of lorry-mounted crane is to do gyroscopic movement through the rack drives gear wheel shaft of angling cylinder to realize.The rack piston bar of this rotary cylinder is threaded with the general employing of being connected of piston, is unlikely to leak into piston rod one side in order to guarantee fluid, need add seal ring in the cooperation place of piston rod and piston and carry out static seal.Therefore, employing is threaded and has following drawback: 1, the cost of production of static seal height, assembling are wasted time and energy; 2, piston is fastenedly connected through screw thread and piston rod, and piston is subject to the diametral load that produces when the rack piston bar meshes and causes the directed wearing and tearing of dynamic seal between piston and cylinder barrel, and dynamic seal reduces service life.
The gyroscopic movement of large-tonnage lorry-mounted crane is to realize through the engagement of the gear wheel shaft below the rack piston bar of oil cylinder and the column; During the work of large-tonnage lorry-mounted crane; Because the steering resistance square of large-tonnage lorry-mounted crane is bigger, orthodox method needs the piston cylinder cylinder diameter bigger with the gyroscopic movement of the gear wheel shaft engagement realization lorry-mounted crane of a toothed rack piston rod and column below; It is bigger that this will cause piston cylinder to take the space of gear wheel shaft one side; The space of gear wheel shaft opposite side is idle, is not fully used, and causes structure is not compact, increased the large-tonnage lorry-mounted crane complete machine weight and installing space.
The utility model content
Two oil cylinder turning gears of a kind of lorry-mounted crane of the utility model; Overcome the deficiency that prior art exists; A kind of installing space that reduces the large-tonnage lorry-mounted crane is provided, has made the compact two oil cylinder turning gears of swing type mechanism structural arrangement of large-tonnage lorry-mounted crane.
In order to solve the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of two oil cylinder turning gears of lorry-mounted crane; Comprise gear wheel shaft, gear, the first revolution rack cylinder and the second revolution rack cylinder; The bottom of gear wheel shaft is equipped with gear, the first revolution rack cylinder and second revolution rack cylinder and the parallel installation of base crossbeam and be arranged symmetrically in the both sides of gear wheel shaft, and the gear on the gear wheel shaft is meshed with the tooth bar that the first revolution rack cylinder and second turns round in the rack cylinder respectively.
The structure of the said first revolution rack cylinder is: a piston respectively is installed in two cylinder bodies; The two ends of rack piston bar respectively with said two cylinder bodies in piston be connected; Wherein said each piston is provided with T shape hanging column with the side that is connected of rack piston bar; Rack piston bar two ends are provided with the U-shaped draw-in groove that adapts with said T shape hanging column with the side that is connected of piston, between the two ends of rack piston bar and the piston through described hanging column with draw-in groove is supporting articulates;
The said second revolution rack cylinder is identical with the first revolution tooth bar cylinder structure.
The utility model compared with prior art has following beneficial effect.
1, the utility model is realized large-tonnage lorry-mounted crane gyroscopic movement through two thinner rack piston bars and column below gear mesh; Two thinner rack piston bars and the parallel installation of base crossbeam are arranged symmetrically in the both sides of gear wheel shaft; Effectively reduce the installing space of large-tonnage lorry-mounted crane, make the swing type mechanism structural arrangement of large-tonnage lorry-mounted crane compact.
2, the type of attachment that articulates is adopted in the assembling between piston and the rack piston bar in the utility model; Make between rack piston bar and the piston radially relative displacement can be arranged; Like this, the diametral load that the engagement of rack piston bar produces can not pass to piston, guarantees that piston does not receive the influence of diametral load.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further explanation.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of revolution rack cylinder in the utility model.
Among the figure 1 for gear wheel shaft, 2 for gear, 3 be the first revolution rack cylinder, 4 be the second revolution rack cylinder, 5 for cylinder body, 6 for piston, 7 for the rack piston bar, 8 for T shape hanging column, 9 for the U-shaped draw-in groove.
The specific embodiment
Like Fig. 1, shown in Figure 2; Two oil cylinder turning gears of a kind of lorry-mounted crane of the utility model; Comprise gear wheel shaft 1, gear 2, the first revolution rack cylinder 3 and the second revolution rack cylinder 4; The bottom of gear wheel shaft 1 is equipped with gear 2, the first revolution rack cylinders 3 and the second revolution rack cylinder 4 and the parallel installation of base crossbeam and is arranged symmetrically in the both sides of gear wheel shaft 1, and the gear 2 on the gear wheel shaft 1 turns round the tooth bar that rack cylinder 3 and second turns round in the rack cylinder 4 and is meshed with first respectively.
The structure of the said first revolution rack cylinder 3 is: a piston 6 respectively is installed in two cylinder bodies 5; The two ends of rack piston bar 7 are connected with said two cylinder bodies, 5 interior pistons 6 respectively; Wherein said each piston 6 is provided with T shape hanging column 8 with the side that is connected of rack piston bar 7; Rack piston bar 7 two ends are provided with the U-shaped draw-in groove 9 that adapts with said T shape hanging column 8 with the side that is connected of piston 6, between the two ends of rack piston bar 7 and the piston 6 through described T shape hanging column 7 and U-shaped draw-in groove 9 supporting articulating;
The said second revolution rack cylinder 4 is identical with the first revolution rack cylinder, 3 structures.
The size of draw-in groove 9 wants appropriateness loose with respect to the size of hanging column 8, to guarantee to articulate conveniently; Articulate and to guarantee that the side end face of rack piston bar 7 side end faces and piston 6 can fit after the connection, so that the transmission of pressure.
Claims (2)
1. two oil cylinder turning gears of a lorry-mounted crane; Comprise gear wheel shaft (1), gear (2), the first revolution rack cylinder (3) and the second revolution rack cylinder (4); The bottom of gear wheel shaft (1) is equipped with gear (2); It is characterized in that: the first revolution rack cylinder (3) and the second revolution rack cylinder (4) are with the parallel installation of base crossbeam and be arranged symmetrically in the both sides of gear wheel shaft (1), and the gear (2) on the gear wheel shaft (1) turns round the tooth bar that rack cylinder (3) and second turns round in the rack cylinder (4) and is meshed with first respectively.
2. two oil cylinder turning gears of a kind of lorry-mounted crane according to claim 1; It is characterized in that: the structure of the said first revolution rack cylinder (3) is: a piston (6) respectively is installed in two cylinder bodies (5); The two ends of rack piston bar (7) are connected with the interior piston (6) of said two cylinder bodies (5) respectively; Said each piston (6) is provided with T shape hanging column (8) with the side that is connected of rack piston bar (7); Rack piston bar (7) two ends are provided with the U-shaped draw-in groove (9) that adapts with said T shape hanging column (8) with the side that is connected of piston (6), between the two ends of rack piston bar (7) and the piston (6) through described T shape hanging column (7) and supporting the articulating of U-shaped draw-in groove (9);
The said second revolution rack cylinder (4) is identical with first revolution rack cylinder (3) structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220050263XU CN202465139U (en) | 2012-02-16 | 2012-02-16 | Double-oil cylinder rotating device for lorry-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220050263XU CN202465139U (en) | 2012-02-16 | 2012-02-16 | Double-oil cylinder rotating device for lorry-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465139U true CN202465139U (en) | 2012-10-03 |
Family
ID=46913319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220050263XU Expired - Fee Related CN202465139U (en) | 2012-02-16 | 2012-02-16 | Double-oil cylinder rotating device for lorry-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556863A (en) * | 2012-02-16 | 2012-07-11 | 长治清华机械厂 | Revolution device for lorry-mounted crane |
-
2012
- 2012-02-16 CN CN201220050263XU patent/CN202465139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556863A (en) * | 2012-02-16 | 2012-07-11 | 长治清华机械厂 | Revolution device for lorry-mounted crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 046012 mailbox, Changzhi, Shanxi, 6 Co-patentee after: China Academy of Launch Vehicle Technology Patentee after: Shanxi spaceflight Qinghua Equipment Co., Ltd. Address before: 046012 mailbox, Changzhi, Shanxi, 6 Co-patentee before: China Academy of Launch Vehicle Technology Patentee before: Qinghua Machinery Plant, Changzhi |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20210216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |