Multifunctional hydraulic wrist
By designing a multi-function hydraulic wrist, the excavator's ±90-degree swing and 360-degree rotation are achieved, which solves the problem of low efficiency of existing excavator equipment in small spaces or complex terrain operations, and improves operation flexibility and safety. Strong adaptability.
Patent Information
- Application Number
- CN202421112048.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Most of the existing excavator equipment can only perform single-direction swing pendulum operations, which limits the efficiency and flexibility of operations in small spaces or complex terrain, resulting in reduced labor productivity and increased costs.
A multi-function hydraulic wrist is designed, using components such as rotary mechanism, hydraulic cylinder, movable hook, limit block and spring to achieve ±90 degree swing and 360 degree rotation, which can be connected to hydraulic shears, hydraulic tamps, buckets and other devices. , has double-layer protection and self-locking functions, adapting to different spacings of hanging tools.
The two degrees of freedom of the double-lock hydraulic wrist are realized, the excavator operation function is expanded, the operation maneuverability and safety is improved, labor intensity is reduced, work efficiency and economic benefits are improved, and the adaptability is strong.
Smart Images
Figure CN222349806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a multifunctional hydraulic wrist and belongs to the technical field of excavator accessories. Background Art
[0002] Most of the existing excavator attachments can only perform single-direction rotation and swing operations. When the working range is limited or operations are required in small spaces or complex terrains, the working position of the excavator needs to be constantly adjusted to perform the operation, which may not achieve the desired effect. This limits the function of the excavator, reduces labor productivity, and increases operating costs. Therefore, it is necessary to develop a multifunctional hydraulic wrist that solves the above problems. Utility Model Content
[0003] The utility model aims at the deficiencies existing in the above-mentioned prior art and provides a multifunctional hydraulic wrist.
[0004] The technical solution of the utility model to solve the above technical problems is as follows:
[0005] A multifunctional hydraulic wrist comprises an upper frame, a slewing mechanism is arranged below the upper frame, a lower body is arranged at the lower end of the slewing mechanism, a lower frame is arranged at the lower end of the lower body, a hydraulic cylinder is arranged inside, a movable hook is arranged at the lower end of the lower frame, a spring is arranged between the right side of the movable hook and the hydraulic cylinder, a rear support leg is arranged on the left side of the movable hook, a limit block is arranged on the lower frame, a limit block shaft fixed on the lower frame is arranged on the limit block, a torsion spring is arranged on the limit block shaft, one end of the torsion spring contacts the limit block, and the other end contacts the lower body.
[0006] Furthermore, a protrusion is provided on the left side of the limit block, and when the hydraulic cylinder rod is extended, the rear leg pushes the limit block to rotate through the protrusion.
[0007] Furthermore, the torsion spring passes through the limit block shaft.
[0008] Furthermore, a spring limiter is provided on the cylinder barrel of the hydraulic oil cylinder, one end of the spring is in contact with the spring limiter, and the other end of the spring is in contact with the right side of the movable hook.
[0009] Furthermore, a rotary joint is provided on the rotary mechanism, a rotary joint is provided on the rotary joint, and an oil pipe A connected between the rotary joint and the hydraulic cylinder is provided.
[0010] Furthermore, the rotary joint is provided with an oil pipe B connected to the hydraulic joint.
[0011] Furthermore, a swing mechanism is provided between the upper frame and the rotary mechanism, and a lower bracket of the swing mechanism is provided at the lower end of the swing mechanism. In this case, the rotary joint is provided on the lower bracket of the swing mechanism.
[0012] Furthermore, the hydraulic cylinder is provided with a cylinder fixing shaft, and the hydraulic cylinder is fixed to the lower body via the cylinder fixing shaft.
[0013] Furthermore, the upper frame is provided with an upper shaft connected to the excavator.
[0014] Furthermore, a hydraulic motor is provided on the slewing mechanism, and a worm gear transmission is adopted inside the slewing mechanism.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] A multifunctional double-lock hydraulic wrist has two degrees of freedom and can realize rotation and swing functions at the same time. It can be connected with different working devices such as hydraulic shears, hydraulic tampers, buckets, etc., so that the excavator's operating functions are extended, the scope of use is expanded, the working environment is improved, labor intensity is reduced, and work efficiency and economic benefits are improved; the swing angle can be set within a ±90 degree range, and a 360-degree rotation can be performed. The swing and rotation can be performed simultaneously without interfering with each other, which greatly improves the maneuverability of the operation and improves work efficiency; the limit block can be set to prevent the connected accessory shaft from falling off, and the tension of the spring can prevent the movable hook from loosening when the cylinder fails. The two work together to have a double-layer protection effect, better protect the hanger, and improve the safety factor of the operation; the lower body hydraulic cylinder is telescopic to drive the movable hook to move, which can be applicable to a variety of hangers with different spacings, realizing one machine with multiple uses and strong adaptability; the swing mechanism and the rotation mechanism are designed with a self-locking function, so that they can be accurately positioned and self-locked during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model.
[0018] Figure 2 It is a side view of the utility model.
[0019] Figure 3 for Figure 2 Cross-sectional view along direction A.
[0020] Figure 4 It is a structural schematic diagram of the lower frame part of the utility model.
[0021] Figure 5 for Figure 4 sectional view of .
[0022] Figure 6 It is a structural schematic diagram of the rear outrigger part of the utility model.
[0023] In the figure, 1. upper shaft; 2. upper frame; 3. swing mechanism; 4. lower bracket of swing mechanism; 5. slewing mechanism; 6. hydraulic motor; 7. rotary joint; 8. lower body; 81. lower frame; 82. hydraulic cylinder; 83. movable hook; 831. rear support leg; 84. spring; 85. limit block; 86. torsion spring; 87. cylinder fixed shaft; 88. limit block shaft; 9. hydraulic joint; 10. slewing joint; 11. oil pipe A; 12. oil pipe B. DETAILED DESCRIPTION
[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. All other embodiments obtained by ordinary personnel in this field without making creative work belong to the protection scope of the utility model. The preferred implementation of the utility model will be described in more detail below with reference to the drawings. Although the preferred implementation of the utility model is shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the implementation described here. On the contrary, these implementations are provided to make the utility model more thorough and complete, and to fully convey the scope of the utility model to those skilled in the art.
[0026] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0027] like Figure 1-Figure 6 As shown, a multifunctional hydraulic wrist comprises an upper frame 2, a slewing mechanism 5 is arranged below the upper frame 2, a lower body 8 is arranged at the lower end of the slewing mechanism 5, a lower frame 81 is arranged at the lower end of the lower body 8, a hydraulic cylinder 82 is arranged inside, a movable hook 83 is arranged at the lower end of the lower frame 81, a spring 84 is arranged between the right side of the movable hook 83 and the hydraulic cylinder 82, a rear support leg 831 is arranged on the left side of the movable hook 83, a limit block 85 is arranged on the lower frame 81, a limit block shaft 88 fixed on the lower frame 81 is arranged on the limit block 85, a torsion spring 86 is arranged on the limit block shaft 88, one end of the torsion spring 86 is in contact with the limit block 85, and the other end is in contact with the lower body 8.
[0028] A protrusion is provided on the left side of the limit block 85. When the cylinder rod of the hydraulic cylinder 82 is extended, the rear leg 831 pushes the limit block 85 to rotate through the protrusion.
[0029] The torsion spring 86 passes through the limit block shaft 88 .
[0030] A spring limiter is provided on the cylinder barrel of the hydraulic oil cylinder 82 , one end of the spring 84 is in contact with the spring limiter, and the other end is in contact with the right side of the movable hook 83 .
[0031] A rotary joint 7 is provided on the rotary mechanism 5 , a rotary joint 10 is provided on the rotary joint 7 , and an oil pipe A 11 connected between the rotary joint 10 and the hydraulic cylinder 82 is provided.
[0032] The rotary joint 7 is provided with an oil pipe B 12 connected to the hydraulic joint 9 .
[0033] A swing mechanism 3 is provided between the upper frame 2 and the rotary mechanism 5 , and a swing mechanism lower bracket 4 is provided at the lower end of the swing mechanism 3 . At this time, a rotary joint 7 is provided on the swing mechanism lower bracket 4 .
[0034] The hydraulic cylinder 82 is provided with a cylinder fixing shaft 87 , and the hydraulic cylinder 82 is fixed to the lower body 8 via the cylinder fixing shaft 87 .
[0035] The upper frame 2 is provided with an upper shaft 1 connected to the excavator.
[0036] The rotary mechanism 5 is provided with a hydraulic motor 6, and a worm gear transmission is adopted inside the rotary mechanism 5.
[0037] During operation, the upper shaft 1 is connected to the excavator, and the swing mechanism 3 can swing ±90 degrees. When the lever of the hydraulic cylinder 82 is fully retracted, the rear leg of the movable hook 83 contacts the limit block 85, and the limit block 85 is pressed back to the parallel position by the rear leg 831 of the movable hook 83 to eliminate the limit. At this time, one axis of the attachment to be used can be installed on the left hook of the lower body 8. After hanging, the hydraulic cylinder 82 starts to work, and the hydraulic cylinder 82 pushes the movable hook 83 to move to the right. The movable hook 83 is hung on another installation axis of the attachment to be used. The attachment is hung, and the combined action of the spring 84 and the limit block 85 can play a double locking role.
[0038] A multifunctional double-lock hydraulic wrist has two degrees of freedom and can realize the rotation and swing functions at the same time. It can be connected with different working devices such as hydraulic shears, hydraulic tampers, buckets, etc., so that the excavator's operating functions are extended, the scope of use is expanded, the working environment is improved, the labor intensity is reduced, and the work efficiency and economic benefits are improved; the swing can be set within the angle range of ±90 degrees, and a 360-degree rotation can be performed. The swing and rotation can be performed simultaneously without interfering with each other, which greatly improves the maneuverability of the operation and improves the work efficiency; the limit block 85 can be set to prevent the connected accessory shaft from falling off, and the tensioning force of the spring 84 can prevent the movable hook 83 from loosening when the hydraulic cylinder 82 fails. The two cooperate to have a double-layer protection effect, better protect the hanger, and improve the safety factor of the operation; the lower body hydraulic cylinder 82 is telescopic to drive the movable hook 83 to move, which can be applicable to a variety of hangers with different spacings, realizing one machine with multiple uses and strong adaptability; the swing mechanism 3 and the rotary mechanism 5 are designed with a self-locking function, so that they can be accurately positioned and self-locked during the movement.
[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A multifunctional hydraulic wrist, comprising an upper frame (2), characterized in that: A slewing mechanism (5) is provided below the upper frame (2), a lower body (8) is provided at the lower end of the slewing mechanism (5), a lower frame (81) is provided at the lower end of the lower body (8), a hydraulic cylinder (82) is provided inside, a movable hook (83) is provided at the lower end of the lower frame (81), a spring (84) is provided between the right side of the movable hook (83) and the hydraulic cylinder (82), a rear support leg (831) is provided at the left side of the movable hook (83), a limit block (85) is provided on the lower frame (81), a limit block shaft (88) fixed on the lower frame (81) is provided on the limit block (85), a torsion spring (86) is provided on the limit block shaft (88), one end of the torsion spring (86) is in contact with the limit block (85), and the other end is in contact with the lower body (8).
2. The multifunctional hydraulic wrist according to claim 1 is characterized in that: A protrusion is provided on the left side of the limit block (85), and when the cylinder rod of the hydraulic cylinder (82) is extended, the rear support leg (831) pushes the limit block (85) to rotate via the protrusion.
3. The multifunctional hydraulic wrist according to claim 1 is characterized in that: The torsion spring (86) passes through the limit block shaft (88).
4. The multifunctional hydraulic wrist according to claim 1 is characterized in that: A spring limiter is provided on the cylinder barrel of the hydraulic oil cylinder (82), one end of the spring (84) is in contact with the spring limiter, and the other end is in contact with the right side of the movable hook (83).
5. The multifunctional hydraulic wrist according to claim 1 is characterized in that: The rotary mechanism (5) is provided with a rotary joint (7), the rotary joint (7) is provided with a rotary joint (10), and an oil pipe A (11) connected between the rotary joint (10) and the hydraulic cylinder (82) is provided.
6. The multifunctional hydraulic wrist according to claim 5 is characterized in that: The rotary joint (7) is provided with an oil pipe B (12) connected to the hydraulic joint (9).
7. The multifunctional hydraulic wrist according to claim 1 is characterized in that: A swing mechanism (3) is provided between the upper frame (2) and the rotary mechanism (5), and a swing mechanism lower bracket (4) is provided at the lower end of the swing mechanism (3).
8. The multifunctional hydraulic wrist according to claim 1 is characterized in that: The hydraulic cylinder (82) is provided with a cylinder fixing shaft (87), and the hydraulic cylinder (82) is fixed to the lower body (8) via the cylinder fixing shaft (87).
9. The multifunctional hydraulic wrist according to claim 1, characterized in that: The upper frame (2) is provided with an upper shaft (1) connected to the excavator.
10. The multifunctional hydraulic wrist according to claim 1, characterized in that: The rotary mechanism (5) is provided with a hydraulic motor (6), and a worm gear transmission is adopted inside the rotary mechanism (5).