Hydraulic oil cylinder device of excavator hydraulic shear
By introducing support and auxiliary mechanisms into the hydraulic cylinder device, the problem of unstable operation of hydraulic cylinders in excavators has been solved, resulting in more stable movement and extended service life.
Patent Information
- Application Number
- CN202520409571.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
The lack of effective support for existing hydraulic cylinders in excavators leads to unstable operation, which may cause fatigue fracture and leakage of input oil pipes, shortening their service life.
A hydraulic cylinder device including a cylinder support mechanism and an auxiliary mechanism was designed. The movement of the cylinder is stabilized by the cooperation of the slider and the support rod, and the support structure is increased to extend the service life.
The design of the support mechanism improves the stability of the hydraulic cylinder, prevents detachment and leakage, and extends its service life.
Smart Images
Figure CN223838176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydraulic cylinders, specifically to a hydraulic cylinder device for a hydraulic shear in an excavator. Background Technology
[0002] Excavator hydraulic cylinders are the actuators in a hydraulic system, primarily used to convert hydraulic energy into mechanical energy to achieve linear reciprocating or oscillating motion. They generally consist of a cylinder body, a piston rod, and seals. The cylinder body is divided into two sections by the piston, each connected to an oil port. When oil enters one port, the piston is pushed, causing oil to exit the other port. The piston then drives the piston rod in an extension (retraction) motion, and vice versa.
[0003] The specific applications of hydraulic cylinders in excavators include controlling the excavator's movement, transmitting and distributing hydraulic pressure, thereby controlling the movement of actuators in the hydraulic system. For example, hydraulic cylinders can be used to control the movement of components such as the boom, stick, and bucket of an excavator. Maintenance and inspection of hydraulic cylinders in excavators are also very important; if leaks or breakages are found, timely repairs are necessary.
[0004] Existing hydraulic cylinders are usually directly mounted on the boom without effective support. Frequent oscillations during operation cause instability in the cylinder body, which can lead to fatigue fracture and leakage of the input oil pipe in severe cases, shortening the service life of the cylinder. Therefore, a hydraulic cylinder device for excavator hydraulic shears is needed to improve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the shortcomings of the prior art, this utility model provides a hydraulic cylinder device for excavator hydraulic shears that provides support and protection for the hydraulic cylinder during operation through the cooperation of a hydraulic cylinder support mechanism and an auxiliary mechanism, thereby extending the service life of the hydraulic cylinder.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder device for a hydraulic shear for an excavator, comprising a first power arm and a second power arm, wherein the first power arm and the second power arm are rotatably connected.
[0009] The first power arm is equipped with a hydraulic cylinder support mechanism, which includes a hydraulic cylinder. A first hinge seat is fixedly installed at the bottom end of the first power arm, and one end of the hydraulic cylinder is rotatably connected to the first hinge seat. A second hinge seat is fixedly installed on the second power arm, and the end of the hydraulic cylinder away from the first hinge seat is hinged to the second hinge seat. Two mounting plates are symmetrically fixedly installed at the bottom end of the first power arm, and each mounting plate is provided with a sliding groove. Two sliders are symmetrically fixedly installed on the hydraulic cylinder, and the two sliders are slidably connected to the two sliding grooves respectively.
[0010] The second power arm is equipped with two auxiliary mechanisms. One of the auxiliary mechanisms includes a third hinge seat, which is fixedly installed at the bottom of the mounting plate. A fourth hinge seat is fixedly installed on the second power arm. A first support rod is rotatably installed on the mounting plate. A second support rod is rotatably installed on the fourth hinge seat. The first support rod and the second support rod are slidably connected.
[0011] Preferably, a limit plate is fixedly installed on both sliders.
[0012] Furthermore, a posting board is provided on the first power arm.
[0013] Furthermore, the first power arm is equipped with multiple reflective strips.
[0014] Based on the aforementioned scheme, a lighting lamp is fixedly installed on the second power arm.
[0015] Furthermore, both the first and second power arms are coated with anti-corrosion paint.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a hydraulic cylinder device for a hydraulic shear in an excavator, which has the following advantages:
[0018] By activating the hydraulic cylinder, the second power arm is moved. When the angle between the first and second power arms changes, the hydraulic cylinder changes accordingly. As the hydraulic cylinder moves, the two sliders slide on the two mounting plates, thus supporting and stabilizing the hydraulic cylinder and protecting it. The cooperation of the two first support rods and the two second support rods makes the second power arm more stable, which in turn makes the hydraulic cylinder more stable. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the connection between the first power arm and the mounting plate of this utility model;
[0021] Figure 3This is a schematic diagram of the structure of the hydraulic cylinder and slider of this utility model;
[0022] Figure 4 This is a schematic diagram of the sliding structure of the first and second support rods of this utility model.
[0023] The following are labels in the attached diagram: 1. First power arm; 2. Second power arm; 3. First articulated seat; 4. Second articulated seat; 5. Hydraulic cylinder; 6. Mounting plate; 7. Slider; 8. Third articulated seat; 9. Fourth articulated seat; 10. First support rod; 11. Second support rod; 12. Limiting plate; 13. Posting board; 14. Reflective strip; 15. Lighting lamp. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example
[0026] Please see Figure 1 and Figure 2 A hydraulic cylinder device for a hydraulic shear in an excavator includes a first power arm 1 and a second power arm 2, which are rotatably connected.
[0027] Please see Figures 1-3 The first power arm 1 is equipped with a hydraulic cylinder support mechanism, which includes a hydraulic cylinder 5. A first hinge seat 3 is fixedly installed at the bottom end of the first power arm 1. One end of the hydraulic cylinder 5 is rotatably connected to the first hinge seat 3. A second hinge seat 4 is fixedly installed on the second power arm 2. The end of the hydraulic cylinder 5 away from the first hinge seat 3 is hinged to the second hinge seat 4. Two mounting plates 6 are symmetrically fixedly installed at the bottom end of the first power arm 1. Each mounting plate 6 has a sliding groove. Two sliders 7 are symmetrically fixedly installed on the hydraulic cylinder 5. The two sliders 7 are slidably connected to the two sliding grooves respectively. By starting the hydraulic cylinder 5, the second power arm 2 is moved by the hydraulic cylinder 5. When the angle of the first power arm 1 and the second power arm 2 changes, the hydraulic cylinder 5 changes accordingly. While the hydraulic cylinder 5 moves, the two sliders 7 slide on the two mounting plates 6 respectively, thereby supporting and stabilizing the hydraulic cylinder 5 and protecting the hydraulic cylinder 5.
[0028] Please see Figures 1-4The second power arm 2 is equipped with two auxiliary mechanisms. One of the auxiliary mechanisms includes a third hinge seat 8, which is fixedly installed at the bottom of the mounting plate 6. A fourth hinge seat 9 is fixedly installed on the second power arm 2. A first support rod 10 is rotatably installed on the mounting plate 6, and a second support rod 11 is rotatably installed on the fourth hinge seat 9. The first support rod 10 and the second support rod 11 are slidably connected. The cooperation of the two first support rods 10 and the two second support rods 11 makes the second power arm 2 more stable, thereby making the hydraulic cylinder 5 more stable.
[0029] Please see Figure 1 and Figure 3 Limiting plates 12 are fixedly installed on both sliders 7. The setting of the two limiting plates 12 makes the two sliders 7 more stable and prevents the two sliders 7 from detaching from the two mounting plates 6.
[0030] Please see Figure 1 and Figure 2 The first power arm 1 is equipped with a posting board 13, which facilitates the pasting of warning signs.
[0031] Please see Figure 1 and Figure 2 It should also be noted that the first power arm 1 is equipped with multiple reflective strips 14, which are used to remind vehicles and pedestrians.
[0032] Please see Figure 1 and Figure 2 A lighting lamp 15 is fixedly installed on the second power arm 2. The lighting lamp 15 facilitates lighting operations during nighttime construction and allows for timely observation of the hydraulic cylinder 5.
[0033] Please see Figure 1 and Figure 2 Both the first power boom 1 and the second power boom 2 are coated with anti-corrosion paint. The application of the protective paint protects the first power boom 1 and the second power boom 2 and prevents them from rusting too quickly.
[0034] In summary, when the hydraulic cylinder device of the excavator hydraulic shear is in use, the cylinder 5 is activated, which drives the second power arm 2 to move. When the angle of the first power arm 1 and the second power arm 2 changes, the cylinder 5 changes accordingly. While the cylinder 5 moves, the two sliders 7 slide on the two mounting plates 6 respectively, thereby supporting and stabilizing the cylinder 5 and protecting it. The two limit plates 12 limit the two sliders 7 to prevent them from detaching from the two mounting plates 6. While the second power arm 2 moves, the two second support rods 11 slide within the two first support rods 10 respectively. The cooperation between the two first support rods 10 and the two second support rods 11 makes the second power arm 2 more stable, which in turn makes the cylinder 5 more stable.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hydraulic cylinder device for a hydraulic shear in an excavator, comprising a first power arm (1) and a second power arm (2), characterized in that: The first power arm (1) and the second power arm (2) are rotatably connected; The first power arm (1) is provided with a hydraulic cylinder support mechanism, which includes a hydraulic cylinder (5). The bottom end of the first power arm (1) is fixedly installed with a first hinge seat (3). One end of the hydraulic cylinder (5) is rotatably connected to the first hinge seat (3). The second power arm (2) is fixedly installed with a second hinge seat (4). The end of the hydraulic cylinder (5) away from the first hinge seat (3) is hinged to the second hinge seat (4). The bottom end of the first power arm (1) is symmetrically fixedly installed with two mounting plates (6). Both mounting plates (6) are provided with sliding grooves. The hydraulic cylinder (5) is symmetrically fixedly installed with two sliders (7). The two sliders (7) are slidably connected to the two sliding grooves respectively. The second power arm (2) is provided with two auxiliary mechanisms. One of the auxiliary mechanisms includes a third hinge seat (8), which is fixedly installed at the bottom of the mounting plate (6). A fourth hinge seat (9) is fixedly installed on the second power arm (2). A first support rod (10) is rotatably installed on the mounting plate (6). A second support rod (11) is rotatably installed on the fourth hinge seat (9). The first support rod (10) and the second support rod (11) are slidably connected.
2. The hydraulic cylinder device for the excavator hydraulic shear according to claim 1, characterized in that: Limiting plates (12) are fixedly installed on both sliders (7).
3. The hydraulic cylinder device for the excavator hydraulic shear according to claim 2, characterized in that: The first power arm (1) is provided with a posting board (13).
4. The hydraulic cylinder device for the excavator hydraulic shear according to claim 3, characterized in that: The first power arm (1) is provided with multiple reflective strips (14).
5. The hydraulic cylinder device for the excavator hydraulic shear according to claim 4, characterized in that: A lighting lamp (15) is fixedly installed on the second power arm (2).
6. The hydraulic cylinder device for the excavator hydraulic shear according to claim 5, characterized in that: Both the first power arm (1) and the second power arm (2) are coated with anti-corrosion paint.