Rotary air cylinder

Abstract

The utility model discloses a rotating air cylinder which comprises a cylinder body, a rotating shaft arranged on the cylinder body in a rotating mode, a first piston rod and a second piston rod, the first piston rod and the second piston rod are arranged on the two sides of the rotating shaft in parallel and used for driving the rotating shaft to rotate, and a through hole used for installing the first piston rod and the second piston rod is formed in the cylinder body. The hydraulic cylinder is characterized in that a front end cover is arranged on the front side of the cylinder body, a screw hole corresponding to the through hole is formed in the front end cover, a screw rod is connected in the screw hole in a threaded mode, and a plug is riveted to the rear end of the through hole. According to the scheme, the design of a traditional rear cover is omitted, the mode of riveting the plug at the rear end of the through hole is replaced, the overall size of the air cylinder is reduced, and the air cylinder is more suitable for the application environment with limited space. And the screw hole on the front end cover is matched with the screw rod for fixation, and the rear end is riveted by the plug, so that the assembly process is simplified, the assembly difficulty is reduced, and the time required for assembly is shortened. And a rear cover is omitted, so that the material consumption is reduced, the assembly process is simplified, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary cylinders, and specifically relates to a rotary cylinder. Background Art

[0002] Traditional rotary cylinders usually consist of a cylinder block, a rotating shaft, a first piston rod and a second piston rod. The rotating shaft is rotatably arranged on the cylinder block, and the first piston rod and the second piston rod are arranged in parallel on both sides of the rotating shaft and used to drive the rotation of the rotating shaft. To ensure the stability of the internal components of the rotary cylinder, end caps are provided at both ends of the cylinder block in the prior art, such as a rotary cylinder disclosed in the patent application No. CN2013207257578. Although this design can effectively protect the internal components, it also brings some problems. First, the end caps at both ends will increase the overall volume of the cylinder; second, the additional end caps also mean more assembly work, thus increasing the production cost.

[0003] In addition, a transmission gear is directly arranged on the rotating shaft of the traditional cylinder, and the transmission gear is in transmission connection with the racks integrally formed with the piston rods on both sides. The racks on both sides act on a gear surface at the same time, accelerating the wear of the transmission gear and affecting the service life of the rotary cylinder.

[0004] To solve the above technical problems, this application proposes a rotary cylinder. Content of the Utility Model

[0005] In view of the deficiencies in the background art, the utility model provides a rotary cylinder.

[0006] The technical solution adopted by the utility model is: a rotary cylinder, including a cylinder block, a rotating shaft rotatably arranged on the cylinder block, and a first piston rod and a second piston rod arranged in parallel on both sides of the rotating shaft and used to drive the rotation of the rotating shaft. A through hole for installing the first piston rod and the second piston rod is arranged in the cylinder block. A front end cap is provided on the front side of the cylinder block, and a screw hole corresponding to the through hole is provided on the front end cap. A screw rod is screwed in the screw hole, and a plug is riveted at the rear end of the through hole.

[0007] Further, an upper gear and a lower gear are detachably connected to the rotating shaft at intervals. An upper rack meshing with the upper gear is arranged on the upper section of the first piston rod, and a lower rack meshing with the lower gear is arranged on the lower section of the second piston rod.

[0008] Further, two sealing ring grooves for installing sealing rings are arranged at both ends of the first piston rod and the second piston rod.

[0009] Further, both ends of the rotating shaft are connected to the cylinder block through bearings.

[0010] Furthermore, a pin groove is provided on the outer wall of the rotating shaft, and the upper gear, the lower gear and the bearing are mounted on the rotating shaft and fixedly connected by the pin.

[0011] Furthermore, the upper gear and the lower gear each include a fixing plate and a protruding tooth provided on one side of the fixing plate, and the fixing plate is provided with a fixing hole.

[0012] The beneficial effects of the utility model are:

[0013] 1. Reduced Cylinder Volume: By eliminating the traditional rear cover and replacing it with a riveted plug at the rear end of the through-hole, the overall cylinder volume is significantly reduced. This improvement makes the rotary cylinder easier to install and use in space-constrained applications.

[0014] 2. Simplified assembly process: Traditional designs require caps at both ends, which not only increases assembly difficulty but also prolongs assembly time. This application simplifies the assembly process by retaining only the front end cap and securing the through-hole with a plug at the rear end. This reduces worker skill requirements and assembly time.

[0015] 3. Reduced costs: Eliminating the back cover reduces material usage and, because the assembly process is simpler, reduces labor costs. Furthermore, the reduced assembly time improves production efficiency, further reducing overall production costs.

[0016] 4. Extended service life: By separating the transmission gear into upper and lower gears and providing a rack on the piston rod to mesh with them, the pressure on each gear is dispersed. This reduces gear wear and significantly extends the service life of the rotary cylinder.

[0017] 5. Easy to maintain and replace: The upper and lower gears are detachably connected, which means that when the gears are worn due to long-term use, they can be easily replaced without having to replace the entire rotating shaft or the entire cylinder assembly, reducing maintenance costs.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0021] Figure 3 Schematic diagram of the bottom of the bearing and rotating shaft.

[0022] Figures 1-3 Among them: 1. Cylinder block; 2. Rotating shaft; 3. First piston rod; 4. Second piston rod; 5. Through hole; 6. Front end cover; 7. Screw hole; 8. Screw rod; 9. Plug; 10. Upper gear; 11. Lower gear; 12. Upper rack; 13. Lower rack; 14. Sealing ring groove; 15. Bearing; 16. Pin shaft groove; 17. Fixed piece; 18. Convex tooth; 19. Fixed hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] The present invention provides a rotary cylinder.

[0026] In this embodiment, referring to Figures 1-3 , the rotary cylinder includes a cylinder block 1, a rotating shaft 2 rotatably arranged on the cylinder block 1, and a first piston rod 3 and a second piston rod 4 arranged in parallel on both sides of the rotating shaft 2 and used to drive the rotation of the rotating shaft. A through hole 5 for installing the first piston rod and the second piston rod is arranged in the cylinder block. A front end cover 6 is provided on the front side of the cylinder block 1. A screw hole 7 corresponding to the through hole is provided on the front end cover 6. A screw rod 8 is screwed in the screw hole 7. A plug 9 is riveted to the rear end of the through hole.

[0027] In the above technical solution, the traditional rear cover design is cancelled, and the method of riveting a plug at the rear end of the through hole is adopted instead, reducing the overall volume of the cylinder and making it more suitable for application environments with limited space. The screw hole on the front end cover is fixed in cooperation with the screw rod, and the rear end is riveted with a plug, simplifying the assembly process, reducing the assembly difficulty, and reducing the time required for assembly. Canceling the rear cover reduces the material usage and simplifies the assembly process, thereby reducing the production cost.

[0028] Specifically, an upper gear 10 and a lower gear 11 are detachably connected to the rotating shaft at intervals. An upper rack 12 meshing with the upper gear is provided on the upper cut surface of the first piston rod 3, and a lower rack 13 meshing with the lower gear is provided on the lower cut surface of the second piston rod 4.

[0029] In this embodiment, by separating the transmission gear into an upper gear and a lower gear, the wear of a single gear is reduced, and the service life of the rotary cylinder is prolonged. The detachable connection design of the gears enables the worn gears to be conveniently replaced, reducing the maintenance cost. In addition, the separated gears mesh with their respective racks, reducing interference and improving the transmission efficiency. Users can adjust the gear configuration according to needs, increasing the flexibility of the system.

[0030] Specifically, two sealing ring grooves 14 for installing sealing rings are provided at both ends of the first piston rod 3 and the second piston rod 4.

[0031] In this embodiment, two sealing ring grooves are provided at both ends of the first piston rod and the second piston rod, enhancing the sealing performance inside the cylinder and preventing leakage. The multiple sealing design ensures the stability of the piston rod during long-term operation and improves the durability.

[0032] Specifically, both ends of the rotating shaft are connected to the cylinder block through bearings 15.

[0033] In this embodiment, both ends of the rotating shaft are connected to the cylinder block through bearings, ensuring the smooth operation of the rotating shaft and improving the rotation accuracy.

[0034] Specifically, a pin shaft groove 16 is provided on the outer wall of the rotating shaft. After the upper gear, the lower gear, and the bearing are sleeved on the rotating shaft, the pin shaft is fixedly connected.

[0035] In this embodiment, the upper gear, the lower gear, and the bearing are fixed by the pin shaft, ensuring the stability and consistency of these components. The design of fixedly connecting the pin shaft simplifies the assembly process and ensures the correct installation of each component.

[0036] Specifically, both the upper gear 10 and the lower gear 11 include a fixing piece 17 and convex teeth 18 provided on one side of the fixing disk. Fixing holes 19 are provided on the fixing piece.

[0037] In this embodiment, both the upper gear and the lower gear include a fixing piece and convex teeth, and fixing holes are provided on the fixing piece for fixing with the piston rod, so that a detachable design is realized between the upper gear and the lower gear and the piston rod, facilitating quick installation and disassembly.

[0038] Notice to all technical personnel: Although this utility model has been described according to the above specific embodiments, the idea of this utility model is not limited to this utility model alone. Any modification that utilizes the idea of this utility model will be included within the scope of protection of this patent right.

Claims

1. A rotary cylinder, comprising a cylinder block, a rotary shaft rotatably arranged on the cylinder block, and a first piston rod and a second piston rod which are arranged in parallel on both sides of the rotary shaft and are used to drive the rotary shaft to rotate. A through hole for installing the first piston rod and the second piston rod is arranged in the cylinder block, and it is characterized in that: A front end cover is provided on the front side of the cylinder block. A screw hole corresponding to the through hole is provided on the front end cover. A screw rod is screwed into the screw hole. A plug is riveted to the rear end of the through hole.

2. The rotary cylinder according to claim 1, wherein: An upper gear and a lower gear which are arranged at intervals are detachably connected to the rotating shaft. An upper rack which meshes with the upper gear is provided on the upper cut surface of the first piston rod. A lower rack which meshes with the lower rack is arranged on the lower cut surface of the second piston rod.

3. The rotary cylinder according to claim 1 or 2, characterized in that: Two sealing ring grooves for installing sealing rings are provided at both ends of the first piston rod and the second piston rod.

4. The rotary cylinder according to claim 2, characterized in that: Both ends of the rotating shaft are connected to the cylinder block through bearings.

5. The rotary cylinder according to claim 4, wherein: A pin shaft groove is provided on the outer wall of the rotating shaft. After the upper gear, the lower gear and the bearing are sleeved on the rotating shaft, the pin shaft is fixedly connected.

6. The rotary cylinder according to claim 2, characterized in that: Both the upper gear and the lower gear include a fixing piece and convex teeth arranged on one side of the fixing disc. Fixing holes are provided on the fixing piece.

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