Novel hydraulic mechanical arm
By designing multiple arm bodies and connecting components, the problem of fixed working range of hydraulic robotic arms was solved, thereby improving flexibility and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-31
AI Technical Summary
Existing hydraulic robotic arms have a fixed working range, which is difficult to adjust according to actual needs and has limitations.
A novel hydraulic robotic arm has been designed that allows for adjustment of the working range through the combination of multiple arm bodies and connecting components, and improves stability through fixing components.
This has improved the flexibility and stability of the hydraulic robotic arm, allowing the working range to be adjusted according to actual needs.
Smart Images

Figure CN224059870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic robotic arm technology, specifically a novel hydraulic robotic arm. Background Technology
[0002] A hydraulic robotic arm is a robotic arm driven by hydraulic principles. Powered by a hydraulic system, it performs various movements and functions. A hydraulic robotic arm mainly consists of components such as a hydraulic pump, hydraulic cylinders, and servo valves, utilizing the pressure transmission of fluid to achieve the arm's movement and operation.
[0003] However, the working range of existing hydraulic robotic arms is usually fixed, making it difficult to adjust the working range according to actual needs, thus presenting limitations. Therefore, a new type of hydraulic robotic arm is invented. Utility Model Content
[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0005] A novel hydraulic robotic arm includes a base plate and an arm body. The arm body is provided in multiple sets, with each pair of arm bodies connected by a connecting assembly. The lowest set of arm bodies is mounted on the top of the base plate by a rotating assembly.
[0006] The arm includes a first support plate, a box, a hydraulic cylinder, and a second support plate. The box is located between the first support plate and the second support plate. The box is fixedly installed on one side of the first support plate. The hydraulic cylinder is located inside the box, and the hydraulic rod of the hydraulic cylinder extends out of the box and is fixedly connected to the second support plate.
[0007] Preferably, a telescopic rod is fixed between the first support plate and the second support plate, and the telescopic rod is arranged on both sides of the box body.
[0008] Preferably, the rotating assembly includes a first housing and a first hydraulic motor. The first housing is fixedly mounted on the top of the base plate, and the first hydraulic motor is fixedly mounted inside the first housing.
[0009] Preferably, the above-mentioned arm body is provided in three groups, namely the first arm body, the second arm body and the third arm body, and the output shaft of the first hydraulic motor is fixedly connected to the first support plate of the first arm body.
[0010] Preferably, the connecting assembly includes a side plate, a rotating shaft, and a movable rod. Side plates are fixedly installed at both ends of one side of the second support plate of the first and second arms. The rotating shaft is rotatably connected between the two sets of side plates through bearings. Movable rods are fixedly installed on one side of the first support plate of the second and third arms, and the movable rods are fixedly installed on the rotating shaft.
[0011] Preferably, a second housing is fixedly installed on the outer side of one set of side plates of the above-mentioned connecting assembly, and a second hydraulic motor is fixedly installed inside the second housing, with the output shaft of the second hydraulic motor fixedly connected to the rotating shaft.
[0012] Preferably, the base plate is fixedly mounted on the workbench using a fixing assembly;
[0013] The fixing assembly includes a coarse stud, a fine stud, a coarse nut, and a fine nut. The base plate has multiple sets of connecting holes. The coarse stud passes through the connecting holes on the base plate and is fixedly connected to the top of the workbench. A fine stud is fixedly mounted on the top of the coarse stud, and the threads of the coarse stud and the fine stud are set in opposite directions. A coarse nut is connected to the outer thread of the coarse stud, and a fine nut is connected to the outer thread of the fine stud.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] By setting up multiple sets of arms and connecting two sets of arms with connecting components, the hydraulic robotic arm can adjust its working range according to actual needs during operation, thus improving its flexibility. In addition, by setting up fixing components to fix the base plate, the stability of the hydraulic robotic arm can be improved to a certain extent. Attached Figure Description
[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0017] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 3 This is a side view of a partial structure of the connecting component of this utility model;
[0019] Figure 4 This is a schematic diagram of the base plate structure of this utility model.
[0020] In the diagram: base plate 10, coarse stud 20, fine stud 21, coarse nut 22, fine nut 23, first housing 30, first hydraulic motor 31, first support plate 40, box body 41, hydraulic cylinder 42, second support plate 43, telescopic rod 44, side plate 50, rotating shaft 51, movable rod 52, second housing 53, second hydraulic motor 54. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0022] This utility model provides a novel hydraulic robotic arm. Please refer to [link / reference]. Figures 1-4 It includes a base plate 10 and an adjustable-length arm. The arm is provided in multiple sets, and each pair of arms is connected by a connecting component. The lowest set of arms is mounted on the top of the base plate 10 by a rotating component.
[0023] The arm includes a first support plate 40, a housing 41, a hydraulic cylinder 42, and a second support plate 43. The housing 41 is located between the first support plate 40 and the second support plate 43. The housing 41 is fixedly installed on one side of the first support plate 40. The hydraulic cylinder 42 is located inside the housing 41. The hydraulic rod of the hydraulic cylinder 42 extends out of the housing 41 and is fixedly connected to the second support plate 43. Heat dissipation holes can be opened on the housing 41 as needed. In addition, a drive structure for operating the hydraulic cylinder 42 can be provided on the housing 41 as needed, including but not limited to a battery, a hydraulic pump, etc.
[0024] A telescopic rod 44 is also fixed between the first support plate 40 and the second support plate 43, and the telescopic rod 44 is arranged on both sides of the box body 41.
[0025] The rotating assembly includes a first housing 30 and a first hydraulic motor 31. The first housing 30 is fixedly installed on the top of the base plate 10, and the first hydraulic motor 31 is fixedly installed inside the first housing 30. Heat dissipation holes can be opened on the first housing 30 as needed. In addition, a drive structure for running the first hydraulic motor 31 can be provided on the first housing 30 as needed, including but not limited to a battery, a hydraulic pump, etc.
[0026] The arm body is provided in three sets, namely the first arm body 1, the second arm body 2 and the third arm body 3. The output shaft of the first hydraulic motor 31 is fixedly connected to the first support plate 40 of the first arm body 1. In addition, the second support plate 43 of the third arm body 3 can be connected to an external robotic arm, which can be selected according to the working scenario of the hydraulic robotic arm.
[0027] The connecting assembly includes a side plate 50, a rotating shaft 51, and a movable rod 52. The side plates 50 are fixedly installed at both ends of the second support plate 43 of the first arm body 1 and the second arm body 2. The rotating shaft 51 is rotatably connected between the two sets of side plates 50 through bearings. The movable rod 52 is fixedly installed on one side of the first support plate 40 of the second arm body 2 and the third arm body 3. The movable rod 52 is fixedly installed on the rotating shaft 51.
[0028] A second housing 53 is fixedly installed on the outer side of one set of side plates 50 of the connecting assembly. A second hydraulic motor 54 is fixedly installed inside the second housing 53. The output shaft of the second hydraulic motor 54 is fixedly connected to the rotating shaft 51. Heat dissipation holes can be opened on the second housing 53 as needed. In addition, a drive structure for running the second hydraulic motor 54 can be provided on the second housing 53 as needed, including but not limited to a battery, hydraulic pump, etc.
[0029] The base plate 10 is fixedly installed on the workbench by a fixing assembly;
[0030] The fixing assembly includes a coarse stud 20, a fine stud 21, a coarse nut 22, and a fine nut 23. The base plate 10 has multiple sets of connecting holes. The coarse stud 20 passes through the connecting holes on the base plate 10 and is fixedly connected to the top of the worktable. The top of the coarse stud 20 is fixedly provided with a fine stud 21, and the thread directions of the coarse stud 20 and the fine stud 21 are set to opposite directions. The outer thread of the coarse stud 20 is connected to the coarse nut 22, and the outer thread of the fine stud 21 is connected to the fine nut 23. The base plate 10 can also be installed on the ground or other places where the robotic arm can be stably fixed.
[0031] In practical use, the operation steps are as follows:
[0032] First, the coarse stud 20 is passed through the connecting hole of the base plate 10 and fixed on the worktable. Then, the coarse nut 22 and the fine nut 23 are threaded onto the coarse stud 20 and the fine stud 21 in sequence. This allows the base plate 10 to be installed, improving the installation stability of the base plate 10. Next, the hydraulic cylinder 42 is operated until the arm is at the required length. After that, the hydraulic robotic arm can work by cooperating with the first hydraulic motor 31 and the second hydraulic motor 54.
[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A novel hydraulic mechanical arm comprising a base plate (10) and an arm body, characterized in that, The arm body is provided with multiple groups, and each two groups of arm bodies are connected through a connecting assembly, and the lowermost group of arm bodies is installed on the top of the bottom plate (10) through a rotating assembly; The arm body comprises a first support plate (40), a box body (41), a hydraulic cylinder (42), and a second support plate (43), the box body (41) is arranged between the first support plate (40) and the second support plate (43), the box body (41) is fixedly installed on one side of the first support plate (40), the inside of the box body (41) is provided with the hydraulic cylinder (42), and the hydraulic rod of the hydraulic cylinder (42) is fixedly connected with the second support plate (43) and extends out of the box body (41).
2. The novel hydraulic mechanical arm as claimed in claim 1, wherein, The first support plate (40) and the second support plate (43) are further fixedly provided with an extension rod (44), and the extension rod (44) is arranged on both sides of the box body (41).
3. The novel hydraulic mechanical arm as claimed in claim 1, wherein, The rotating assembly comprises a first box body (30) and a first hydraulic motor (31), the first box body (30) is fixedly installed on the top of the bottom plate (10), and the first hydraulic motor (31) is fixedly installed in the first box body (30).
4. The novel hydraulic mechanical arm as claimed in claim 3, wherein, The arm body is provided with three groups, and the three groups of arm bodies are a first arm body (1), a second arm body (2), and a third arm body (3), and the output shaft of the first hydraulic motor (31) is fixedly connected with the first support plate (40) of the first arm body (1).
5. The novel hydraulic mechanical arm as claimed in claim 4, wherein, The connecting assembly comprises a side plate (50), a rotating shaft (51), and a movable rod (52), the side plate (50) is fixedly installed on both ends of one side of the second support plate (43) of the first arm body (1) and the second arm body (2), the rotating shaft (51) is rotatably connected between the two groups of side plates (50) through a bearing, and the movable rod (52) is fixedly installed on one side of the first support plate (40) of the second arm body (2) and the third arm body (3), and the movable rod (52) is fixedly installed on the rotating shaft (51).
6. The novel hydraulic mechanical arm as claimed in claim 5, wherein, One side of the side plate (50) of the connecting assembly is fixedly provided with a second box body (53), the second box body (53) is fixedly provided with a second hydraulic motor (54) in the inside, and the output shaft of the second hydraulic motor (54) is fixedly connected with the rotating shaft (51).
7. The novel hydraulic mechanical arm as claimed in claim 1, wherein, The bottom plate (10) is fixedly installed on the workbench through a fixing assembly; The fixing assembly comprises a coarse screw column (20), a fine screw column (21), a coarse screw nut (22), and a fine screw nut (23), a plurality of connecting holes are formed in the bottom plate (10), the coarse screw column (20) penetrates through the connecting hole in the bottom plate (10) and is fixedly connected with the top of the workbench, the top of the coarse screw column (20) is fixedly provided with the fine screw column (21), the thread directions of the coarse screw column (20) and the fine screw column (21) are opposite, the outer side of the coarse screw column (20) is threadedly connected with the coarse screw nut (22), and the outer side of the fine screw column (21) is threadedly connected with the fine screw nut (23).