An assembled cycloid hydraulic motor
By installing a ring clamp and oil injection assembly on the outside of the drive shaft, the problems of uneven oil distribution and sedimentation in the cycloidal hydraulic motor are solved, achieving efficient lubrication and cleaning of the drive shaft and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG RNOMAC HYDRAULIC MACHINERY
- Filing Date
- 2024-01-05
- Publication Date
- 2026-07-03
Smart Images
Figure CN117536769B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cycloidal hydraulic motor technology, and specifically provides an assembled cycloidal hydraulic motor. Background Technology
[0002] Motors are ubiquitous in daily life and production. From machinery to tiny parts, everything needs a motor to drive it during operation. The emergence of motors has promoted the progress of production and life, and more and more types of motors have appeared, including a new type of cycloidal hydraulic motor.
[0003] Existing cycloidal hydraulic motors require an oil distribution shaft to distribute oil between the internal motor core and drive shaft during operation to prevent oil shortages. However, due to hydraulic actuation and uniform oil output from the outlets, uneven oil distribution is common. Furthermore, after the oil distribution process, if the motor remains unused for an extended period, the oil settles and adheres to the drive shaft surface, especially the gear grooves. This necessitates disassembling the motor housing and removing the internal drive shaft for cleaning. This method requires disassembling all internal parts of the motor housing step by step to mitigate these problems, which is time-consuming and labor-intensive. Therefore, we need to improve upon these solutions. Summary of the Invention
[0004] The purpose of this invention is to solve the problems existing in the background art by proposing an assembled cycloidal hydraulic motor.
[0005] To achieve the above objectives, the present invention provides an assembled cycloidal hydraulic motor, comprising a front end cover, a drive shaft, oil holes, an adjusting chamber, a rotor, an oil chamber, and a rear end cover. The front end cover and the rear end cover are connected by long bolts. The rear end of the drive shaft is connected to the rotor. Multiple adjusting slots are formed inside the adjusting chamber. The rear end of the rotor is connected to the multiple adjusting slots via a transmission connection. The drive shaft is rotatably mounted inside the front end cover, with one end extending to the outside of the front end cover. The oil chamber is mounted inside the rear end cover. There are two sets of oil holes that communicate with the inside of the oil chamber. The adjusting chamber is located inside the oil chamber. A toothed bushing is fixedly fitted to the outside of the drive shaft. Arc-shaped oil passages are formed at equal intervals along the circumference on the outside of the drive shaft. First ring clamps are respectively provided on the outer sides of both sides of the drive shaft. Mounting components are provided on the upper and lower edges of both sets of first ring clamps. Second ring clamps are correspondingly connected to the inner sides of both sets of first ring clamps through multiple sets of oil injection components. Locking components are provided on the outer sides of the upper and lower ends of both sets of second ring clamps.
[0006] Preferably, the mounting component includes a fixing plate fixedly installed on the outside of one side of the first ring clamp, the inner side of the fixing plate being connected to the inner wall of the front end cover via a connecting bolt, and an oil inlet pipe being installed on the inner side of the first ring clamp.
[0007] Preferably, the multiple sets of the oil injection components include connecting pipes that are all connected to the inner side of the first ring clamp, and the other end of the connecting pipes is connected to the inner side of the second ring clamp.
[0008] Preferably, an oil head is connected to the end of the connecting pipe, and one end of the oil head corresponds to the inner side of the corresponding arc-shaped oil passage.
[0009] Preferably, the locking component includes an extension block that is fixedly installed on the outer side of one end of the second ring clamp. The two ends of the inner side of the extension block are respectively provided with positioning holes. The inner sides of the four sets of positioning holes at corresponding positions are locked together by the intersecting U-shaped locking pins.
[0010] Preferably, a fixing rod is fixedly connected to the outer side of the first ring clamp, and a fixing seat is fixedly installed on the outer side of one end of the fixing rod, and a sliding member is provided on the outer side of the fixing seat.
[0011] Preferably, the sliding member includes a slider that slides on the inner side of the fixed base, the inner side of the slider has multiple sets of insertion holes, the upper inner side of the slider is threaded with a positioning bolt, one end of the positioning bolt extends into one of the sets of insertion holes, and the inner side of the fixed rod and near the slider is provided with an elastic component.
[0012] Preferably, the elastic component includes a storage slot that is opened inside the fixed rod and near the slider. A guide rod is fixedly connected to the inside of the storage slot. A spring is sleeved on the outside of the guide rod. A connecting plate is slidably installed on the outside of the guide rod. One end of the connecting plate is connected to the outside of the slider.
[0013] Preferably, an arc-shaped clamp is fixedly connected to the end of the slider away from the fixed seat, and a wiping cotton is installed on the inner wall of the arc-shaped clamp.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] By setting two sets of first ring clamps on the inner side of the front cover, the oil stains deposited on the outside of the drive shaft can be treated, thus enabling the drive shaft to work well. The inner side of the first ring clamp is connected to the oil inlet pipe, which can inject the oil used to clean the external oil stains into the first ring clamp. With the connection of multiple sets of connecting pipes, the oil is sprayed into the arc-shaped oil passage on the outside of the drive shaft through the oil head, so that the outer surface of the drive shaft is lubricated and cleaned. During the oil injection process, the arc-shaped oil passage can automatically overflow and roll onto the surface of the drive shaft to treat the oil stains. Furthermore, with the connection of the fixed rod, the elastic component of the arc-shaped clamp at the fixed rod can make contact with the surface of the drive shaft during daily rolling, thereby treating the oil stains at the rear end of the drive shaft and near the adjustment chamber. This is to better cooperate with the rotor and drive shaft for more efficient drive force. At the same time, this method can semi-automatically treat the oil stains by removing the rear end cover, without having to disassemble multiple components inside the motor, saving a lot of disassembly work and making maintenance more efficient. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0017] Figure 2 This is a cross-sectional view of the internal structure of the hydraulic motor of the present invention;
[0018] Figure 3 This is a schematic diagram showing the connection between the rotor and the regulating chamber of the present invention;
[0019] Figure 4 This is a schematic diagram showing the connection between the first ring clamp and the connecting pipe of the present invention;
[0020] Figure 5 This is a schematic diagram showing the connection between the first ring clamp and the second ring clamp of the present invention;
[0021] Figure 6 This is a schematic diagram of the internal structure of the second ring clamp of the present invention;
[0022] Figure 7 This is a schematic diagram showing the connection between the fixed base, the slider, and the elastic component of the present invention;
[0023] Figure 8 For the present invention Figure 3 Enlarged view of point A in the middle.
[0024] In the diagram: 1. Front end cover; 2. Drive shaft; 3. Oil hole; 4. First ring clamp; 5. Toothed bushing; 6. Adjustment chamber; 7. Rotor; 8. Oil inlet pipe; 9. Arc-shaped clamp; 10. Insertion hole; 11. Oil chamber; 12. U-shaped locking pin; 13. Connecting pipe; 14. Rear end cover; 15. Extension block; 16. Second ring clamp; 17. Oil head; 18. Fixing plate; 19. Connecting bolt; 20. Fixing seat; 21. Fixing rod; 22. Slider; 23. Positioning hole; 24. Positioning bolt; 25. Connecting plate; 26. Guide rod; 27. Spring; 28. Arc-shaped oil passage; 29. Wiping cotton; 30. Storage slot. Detailed Implementation
[0025] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.
[0027] like Figures 1-8 The assembled cycloidal hydraulic motor shown includes a front cover 1, a drive shaft 2, an oil hole 3, an adjusting chamber 6, a rotor 7, an oil chamber 11, and a rear cover 14. The front cover 1 and the rear cover 14 are connected by long bolts. The rear end of the drive shaft 2 is connected to the rotor 7. Multiple adjusting grooves are formed inside the adjusting chamber 6. The rear end of the rotor 7 is connected to the multiple adjusting grooves. The drive shaft 2 is rotatably mounted inside the front cover 1, with one end extending to the outside of the front cover 1. The oil chamber 11 is mounted inside the rear cover 14. The oil hole... 3 consists of two sets and is connected to the inside of the oil chamber 11. The regulating chamber 6 is located inside the oil chamber 11. A toothed bushing 5 is fixedly sleeved on the outside of the drive shaft 2. Arc-shaped oil passages 28 are opened at equal intervals along the circumferential direction on the outside of the drive shaft 2. First ring clamps 4 are respectively provided on the outside of both sides of the drive shaft 2. Mounting parts are provided on the upper and lower edges of both sets of first ring clamps 4. Second ring clamps 16 are connected to the inside of both sets of first ring clamps 4 through multiple sets of oil injection components. Locking parts are provided on the outer sides of the upper and lower ends of both sets of second ring clamps 16.
[0028] It should be noted that the hydraulic cycloidal motor, which is composed of the front end cover 1, drive shaft 2, oil hole 3, adjustment chamber 6, rotor 7, oil chamber 11, and rear end cover 14, is the basic model and is existing technology. Therefore, the connection structure and the sealing sleeves involved will not be described in detail.
[0029] The mounting components include a fixing plate 18 fixedly installed on the outside of one side of the first ring clamp 4. The inner side of the fixing plate 18 is connected to the inner wall of the front cover 1 through a connecting bolt 19. An oil inlet pipe 8 is installed on the inner side of the first ring clamp 4, which can be connected to the external body. Then, cleaning oil is injected into the inner side of the first ring clamp 4, thereby removing stains from the surface of the drive shaft 2 through the connection of the first ring clamp 4. Both cleaning oil and degreasing agent can be injected.
[0030] The multiple oil injection components include connecting pipes 13 that are all connected to the inner side of the first ring clamp 4. The other end of the connecting pipe 13 is connected to the inner side of the second ring clamp 16. An oil head 17 is connected to the end of the connecting pipe 13. The oil head 17 is circular and can collect the cleaning oil during oil injection so that it can be fully sprayed on the outer side of the drive shaft 2. One end of the oil head 17 corresponds to the inner side of the corresponding arc-shaped oil passage 28.
[0031] The locking component includes extension blocks 15 that are fixedly installed on the outer side of one end of the second ring clamp 16. The upper and lower edges of the second ring clamp 16 extend out of the extension blocks 15 to facilitate fixing the rear end of the second ring clamp 16. The second ring clamp 16 and one end of the drive shaft 2 are left with vibration space. The inner ends of the extension blocks 15 are respectively provided with positioning holes 23. The inner sides of the four sets of positioning holes 23 at corresponding positions are locked together by the U-shaped locking pins 12. The two sets of positioning holes 23 on the inner side of the extension blocks 15 are fixed by the U-shaped locking pins 12. The U-shaped locking pins 12 are composed of U-shaped buckles and corresponding nuts.
[0032] A fixing rod 21 is fixedly connected to the outer side of the first ring clamp 4. A fixing seat 20 is fixedly installed on the outer side of one end of the fixing rod 21. The fixing seat 20 at the end of the fixing rod 21 allows the sliding member to be installed on the outer side of the first ring clamp 4 and the second ring clamp 16, thereby ensuring the use of the overall structure. The sliding member is provided on the outer side of the fixing seat 20.
[0033] The sliding component includes a slider 22 that slides inside the fixed base 20. Multiple sets of insertion holes 10 are provided inside the slider 22. A positioning bolt 24 is threadedly connected to the upper inside of the slider 22. One end of the positioning bolt 24 extends into one of the sets of insertion holes 10. An elastic component is provided inside the fixed rod 21 near the slider 22. The positioning bolt 24 is inserted inside the slider 22. During daily use, the elastic component inside can be adjusted to ensure that the elastic component can exert a large rebound force, so that the slider 22 can slide better.
[0034] The elastic component includes a storage groove 30 located inside the fixed rod 21 and near the slider 22. A guide rod 26 is fixedly connected to the inside of the storage groove 30. A spring 27 is sleeved on the outside of the guide rod 26. A connecting plate 25 is slidably installed on the outside of the guide rod 26. The arrangement of the guide rod 26 and the connecting plate 25 facilitates the elastic movement of one side of the slider 22. One end of the connecting plate 25 is connected to the outside of the slider 22. An arc-shaped clamp 9 is fixedly connected to the end of the slider 22 away from the fixed seat 20. A wiping cotton 29 is installed on the inner wall of the arc-shaped clamp 9. When the rear end of the drive shaft 2 vibrates, the wiping cotton 29 can move and fit against the surface of the drive shaft 2 under the connection of the spring 27, the connecting plate 25, the slider 22, and the guide rod 26, thereby ensuring that oil stains appear on the front end of the adjustment chamber 6 and the rotor 7, causing the gap to become larger and affecting the rotation of the drive shaft 2.
[0035] Working principle: Two sets of first ring clamps 4 can be installed inside the front cover 1 using the provided mounting components. This allows the first ring clamps 4 to clean the accumulated oil stains near the gap of the toothed bushing 5 on the outside of the drive shaft 2, ensuring proper operation of the drive shaft 2. The oil inlet pipe 8 connects to the inside of the first ring clamps 4, allowing the oil used for cleaning the external oil stains to be injected into the first ring clamps 4. With the connection of multiple sets of connecting pipes 13, the oil is sprayed through the oil nozzle 17 into the arc-shaped oil passage 28 on the outside of the drive shaft 2, ensuring that the outer surface of the drive shaft 2 is lubricated and cleaned. The arc-shaped oil passage 28 allows for efficient oil filling during the oil injection process. The oil stains are automatically overflowed and rolled onto the surface of the drive shaft 2 to treat the oil stains. Under the connection of the fixing rod 21 on the outside of the first ring clamp 4, the arc-shaped clamp 9 at the end can make active contact with the surface of the drive shaft 2 that vibrates and rotates during use through the elastic component's telescopic rebound function, thereby treating the oil stains at the rear end of the drive shaft 2 and near the adjustment chamber 6. This is to better match the use of the rotor 7 and the drive shaft 2. At the same time, this method can semi-automatically treat the oil stains by removing the rear end cover 14 in daily use, without having to disassemble multiple parts inside the motor, saving a lot of disassembly work and making maintenance more efficient.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.
Claims
1. An assembled cycloidal hydraulic motor, comprising a front end cover (1), a drive shaft (2), an oil hole (3), an adjustment chamber (6), a rotor (7), an oil chamber (11), and a rear end cover (14), characterized in that: The front cover (1) and the rear cover (14) are connected by long bolts. The rear end of the drive shaft (2) is connected to the rotor (7). Multiple sets of adjustment slots are opened inside the adjustment chamber (6). The rear end of the rotor (7) is connected to the multiple sets of adjustment slots. The drive shaft (2) is rotatably installed inside the front cover (1) and one end extends to the outside of the front cover (1). The oil chamber (11) is installed inside the rear cover (14). There are two sets of oil holes (3) that are connected to the inside of the oil chamber (11). The adjustment chamber (6) is located inside the oil chamber (11). A toothed bushing (5) is fixedly sleeved on the outside of the drive shaft (2). Arc-shaped oil passages (28) are opened at equal intervals along the circumferential direction on the outside of the drive shaft (2). First ring clamps (4) are respectively provided on the outer sides of the drive shaft (2). Mounting parts are provided on the upper and lower edges of the two sets of first ring clamps (4). The inner sides of the two sets of first ring clamps (4) are connected to second ring clamps (16) through multiple sets of oil injection components. Locking parts are provided on the outer sides of the upper and lower ends of the two sets of second ring clamps (16). An oil inlet pipe (8) is connected to the inner side of the first ring clamp (4). The multiple sets of oil injection components include connecting pipes (13) that are connected to the inner side of the first ring clamp (4). The other end of the connecting pipe (13) is connected to the inner side of the second ring clamp (16). An oil head (17) is connected to the end of the connecting pipe (13). One end of the oil head (17) corresponds to the inner side of the corresponding arc-shaped oil passage (28).
2. The assembled cycloidal hydraulic motor according to claim 1, characterized in that: The mounting component includes a fixing piece (18) fixedly installed on the outside of one side of the first ring clamp (4), and the inner side of the fixing piece (18) is connected to the inner wall of the front cover (1) by a connecting bolt (19).
3. The assembled cycloidal hydraulic motor according to claim 1, characterized in that: The locking component includes an extension block (15) that is fixedly installed on the outer side of one end of the second ring clamp (16). The extension block (15) has positioning holes (23) at both ends of its inner side. The two sets of second ring clamps (16) are locked together by the U-shaped locking pins (12) inserted through the inner sides of the four sets of positioning holes (23) at the corresponding positions.
4. The assembled cycloidal hydraulic motor according to claim 1, characterized in that: The first ring clamp (4) is fixedly connected to a fixing rod (21) on the outside. A fixing seat (20) is fixedly installed on the outside of one end of the fixing rod (21). A sliding member is provided on the outside of the fixing seat (20).
5. The assembled cycloidal hydraulic motor according to claim 4, characterized in that: The sliding component includes a slider (22) that slides inside the fixed base (20). Multiple sets of insertion holes (10) are provided inside the slider (22). A positioning bolt (24) is threadedly connected to the upper inside of the slider (22). One end of the positioning bolt (24) extends into one of the sets of insertion holes (10). An elastic component is provided inside the fixed rod (21) and near the slider (22).
6. The assembled cycloidal hydraulic motor according to claim 5, characterized in that: The elastic component includes a storage slot (30) that is opened inside the fixed rod (21) and close to the slider (22). A guide rod (26) is fixedly connected to the inside of the storage slot (30). A spring (27) is sleeved on the outside of the guide rod (26). A connecting plate (25) is slidably installed on the outside of the guide rod (26). One end of the connecting plate (25) is connected to the outside of the slider (22).
7. The assembled cycloidal hydraulic motor according to claim 6, characterized in that: The end of the slider (22) away from the fixed seat (20) is fixedly connected to an arc-shaped clamp (9), and the inner wall of the arc-shaped clamp (9) is fitted with a wiping cotton (29).