Big arm deflection mechanism of agricultural excavator
By designing the boom swing mechanism, using components such as clamping frame, swing cylinder and swing section, the single oil cylinder control of the excavator's boom is achieved, which solves the problem that the excavator needs the body to rotate to swing, improves efficiency and reduces costs .
Patent Information
- Application Number
- CN202322890912.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-10-27
AI Technical Summary
When existing excavators need to swing the booms of buckets in the left and right directions of the driver, the entire body needs to rotate, resulting in the internal combustion engine and fuel tank also rotating, resulting in the long-term high-power output of the slewing motor and low efficiency.
A large arm tilt mechanism is designed. Through the clamping frame, swing cylinder, swing joint and rotary joint pin shaft and other components, the single cylinder of the excavator's main arm controls the left and right tilt swing, reducing the burden on the rotary motor.
The left and right swing of the excavator boom is achieved, and the structure is compact, simple and reliable, which reduces the cost and reduces the output power requirement of the rotary motor.
Smart Images
Figure CN222140154U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a big arm swing mechanism, in particular to a big arm swing mechanism of an agricultural excavator. Background Art
[0002] An excavator is an important engineering machine. Its driving mechanism includes an internal combustion engine on the machine body. A hydraulic pump is provided at one end of the internal combustion engine. Two walking tracks are provided at the bottom of the machine body. A bulldozer mechanism is connected between the two walking tracks through a connecting rod. The bulldozer mechanism is connected to the machine body. One end of the machine body is connected to a bucket and a large and small boom. The control cylinder is provided on the bucket and a large and small boom. The lower end of the machine body is connected to a rotary device. A control valve is provided on the machine body. A bucket is connected to the top of the control cylinder and the bucket and a large and small boom. The control valve controls the bulldozer cylinder and the control cylinder respectively. The control valve controls the bulldozer cylinder, thereby realizing the bulldozer action of the bulldozer mechanism. The control valve is a multi-way valve that controls the bucket and a large and small boom, and the work realizes the digging action.
[0003] For the above-mentioned excavator, since the bucket arm and the machine body are hinged, when the bucket arm needs to be swung in the left and right directions of the driver, the slewing device can only be controlled by the control valve. The slewing device drives the machine body to rotate, so that the bucket arm follows the rotation of the machine body to achieve the purpose of moving the bucket arm to a specific position.
[0004] However, the above-mentioned excavator needs to rotate the entire body in order to achieve the purpose of swinging the bucket and the boom to the left and right sides of the driver. Since the internal combustion engine, fuel tank and other components are installed on the body, the internal combustion engine and the fuel tank also rotate with the body. Therefore, for the rotary motor in the rotary device, a large output power is required to drive it. Since this rotation is a regular operation, it is in a high-power output state for a long time. Utility Model Content
[0005] The utility model aims to solve the above defects and provides a large arm swing mechanism for an agricultural excavator.
[0006] In order to overcome the defects in the background technology, the technical solution adopted by the utility model to solve the technical problem is: a clamping frame, the clamping frame is fixed on the frame, the clamping frame includes a frame body, a swing cylinder connecting hole is provided on one side of the frame body, and a connecting hole 1, a connecting hole 2, a connecting hole 3 and a connecting hole 4 are provided on the other side of the frame body;
[0007] A swing cylinder, wherein one end of the swing cylinder is provided with a stud hole, and the middle section is provided with upper and lower protruding shafts;
[0008] A swing joint, wherein the upper and lower ends of one side of the swing joint are provided with a pin hole 1, and the side surface is provided with two pin holes 2 located between the two pin holes 1;
[0009] The swing cylinder is connected to the swing cylinder connection hole on the clamping frame through the provided stud hole and is fixed by the swing cylinder positioning pin shaft;
[0010] The connection hole 1 and the connection hole 2 on the clamping frame are connected to one end of the swing cylinder mounting plate 1 and the swing cylinder mounting plate 2;
[0011] The swing cylinder is located between the first swing cylinder mounting plate and the second swing cylinder mounting plate, and the upper and lower protruding shafts are connected to the middle holes provided on the first swing cylinder mounting plate and the second swing cylinder mounting plate;
[0012] The other end of the swing cylinder mounting plate 1 is connected to one end of the connecting plate 1, and the other end of the swing cylinder mounting plate 2 is connected to one end of the connecting plate 2;
[0013] The other end of the connecting plate 1 is connected to a pin hole 2 on the swing joint, and the other end of the connecting plate 2 is connected to another pin hole 2 on the swing joint;
[0014] The pin hole 1 at the upper end of the swing joint is connected to the connecting hole 3, and the pin hole 1 at the lower end is connected to the connecting hole 4.
[0015] According to another embodiment of the utility model, the clamping frame further includes a through hole at one end of the swing cylinder mounting plate and a through hole at one end of the swing cylinder mounting plate corresponding to the connection hole 1 and the connection hole 2 on the clamping frame, and a rotating joint pin shaft passes through the four holes to connect the clamping frame with the one end of the swing cylinder mounting plate and the one end of the swing cylinder mounting plate.
[0016] According to another embodiment of the utility model, it further includes one end of the connecting plate one, the other end of the swing cylinder mounting plate one, the other end of the swing cylinder mounting plate two to one end of the connecting plate two, which are connected by a rotating joint pin shaft passing through four holes.
[0017] According to another embodiment of the utility model, a rubber buffer column is further provided on the end surface of the other side of the clamping frame.
[0018] According to another embodiment of the utility model, a steel sleeve is further provided at the connection between the connection hole three and the connection hole four, and the pin hole one provided at the upper and lower ends of the swing joint is connected with the connection hole three and the connection hole four through the rotating joint pin bolt.
[0019] According to another embodiment of the utility model, a long swing cylinder sleeve and a nylon spacer sleeve are further provided at the connection between the first end of the swing cylinder mounting plate and the second end of the swing cylinder mounting plate.
[0020] According to another embodiment of the utility model, a swing cylinder sleeve is further provided at the connection between the other end of the connecting plate 1 and the other end of the connecting plate 2.
[0021] According to another embodiment of the utility model, a nylon gasket and a connecting plate pin are further provided at the connection of the pin hole 2, and the swing joint is connected to the connecting plate 1 and the connecting plate 2 through the connecting plate pin.
[0022] The beneficial effects of the utility model are as follows: the boom deflection mechanism of the agricultural excavator controls the left and right deflection of the boom of the excavator through a single oil cylinder, and has the characteristics of compact structure, simple reliability and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0024] Figure 1 It is a structural schematic diagram of an exploded view of the utility model;
[0025] Figure 2 It is a structural schematic diagram of the main view of the utility model;
[0026] Figure 3 It is a structural schematic diagram of the left view of the utility model;
[0027] Figure 4 It is a schematic diagram of the structure of the top view of the utility model;
[0028] Among them: 1. Swing joint, 2. Nylon gasket, 3. Connecting plate pin, 4. Rotating joint pin bolt, 5. Swing cylinder, 6. Swing cylinder mounting plate 1, 7. Swing cylinder sleeve, 8. Connecting plate 1, 9. Rotating joint pin, 10. Nylon spacer, 11. Swing cylinder long sleeve, 12. Steel sleeve, 13. Clamping frame, 14. Swing cylinder positioning pin, 15. Rubber buffer column, 16. Swing cylinder mounting plate 2, 17. Connecting plate 2, 18. Connecting hole 1, 19. Connecting hole 3, 20. Connecting hole 2, 21. Connecting hole 4, 22. Stud hole, 23. Upper and lower protruding shafts, 24. Pin hole 1, 25. Pin hole 2, 26. Swing cylinder connecting hole. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The embodiments in the basic utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] like Figure 1-4As shown in the figure, the clamping frame 13, the swing cylinder 5 and the swing joint 1 are included. Through the connection of the swing cylinder mounting plate 1 6, the connecting plate 1 8, the swing cylinder mounting plate 2 16 and the connecting plate 2 17, the arm of the excavator connected to the swing joint 1 can be tilted left and right. The specific structure is as follows:
[0031] The clamping frame 13 is fixed on the frame. The clamping frame 13 includes a frame body. A swing cylinder connecting hole 26 is provided on one side of the frame body. A connecting hole 18, a connecting hole 20, a connecting hole 3 19 and a connecting hole 4 21 are provided on the other side of the frame body.
[0032] A swing cylinder 5, wherein one end of the swing cylinder 5 is provided with a stud hole 22, and the middle section is provided with an upper and lower protruding shaft 23;
[0033] The swing joint 1 has a pin hole 24 at the upper and lower ends of one side of the swing joint 1, and two pin holes 25 located between the two pin holes 24 are provided on the side;
[0034] The swing cylinder 5 is connected to the swing cylinder connection hole 26 on the clamping frame 13 through the provided stud hole 22, and is fixed by the swing cylinder positioning pin 14;
[0035] The connection hole 18 and the connection hole 20 on the clamping frame 13 are connected to one end of the swing cylinder mounting plate 1 6 and the swing cylinder mounting plate 2 16;
[0036] The swing cylinder 5 is located between the swing cylinder mounting plate 1 6 and the swing cylinder mounting plate 2 16, and the upper and lower protruding shafts 23 are connected to the middle holes provided on the swing cylinder mounting plate 1 6 and the swing cylinder mounting plate 2 16;
[0037] The other end of the swing cylinder mounting plate 1 6 is connected to one end of the connecting plate 1 8, and the other end of the swing cylinder mounting plate 2 16 is connected to one end of the connecting plate 2 17;
[0038] The other end of the connecting plate 1 8 is connected to a pin hole 25 on the swing joint 1, and the other end of the connecting plate 2 17 is connected to another pin hole 25 on the swing joint 1;
[0039] The pin hole 1 24 at the upper end of the swing joint 1 is connected to the connecting hole 3 19 , and the pin hole 1 24 at the lower end is connected to the connecting hole 4 21 .
[0040] The connection holes 18 and 20 on the clamping frame 13 correspond to the through holes at one end of the swing cylinder mounting plate 16 and the through holes at one end of the swing cylinder mounting plate 2. A rotating joint pin 9 passes through the four holes to connect the clamping frame 13 to one end of the swing cylinder mounting plate 16 and one end of the swing cylinder mounting plate 2.
[0041] One end of the connecting plate 1 8 , the other end of the swing cylinder mounting plate 1 6 , the other end of the swing cylinder mounting plate 2 16 and one end of the connecting plate 2 17 are connected by a rotating joint pin shaft 9 passing through four holes.
[0042] A rubber buffer column 15 is provided on the end surface of the other side of the clamping frame 13 .
[0043] A steel sleeve 12 is provided at the connection of the connection hole three 19 and the connection hole four 21, and the pin hole one 24 provided at the upper and lower ends of the swing joint 1 is connected to the connection hole three 19 and the connection hole four 21 through the rotation joint pin bolt 4.
[0044] A long swing cylinder sleeve 11 and a nylon spacer sleeve 10 are provided at the connection between one end of the swing cylinder mounting plate 1 6 and one end of the swing cylinder mounting plate 2 16 .
[0045] A swing cylinder sleeve 7 is provided at the connection between the other end of the connecting plate 1 8 and the other end of the connecting plate 2 17 .
[0046] A nylon gasket 2 and a connecting plate pin shaft 3 are provided at the connection of the second pin hole 25 , and the swing joint 1 is connected to the connecting plate 1 8 and the connecting plate 2 17 via the connecting plate pin shaft 3 .
[0047] Working principle: the clamping frame 13 is fixed on the frame, one end of the swing cylinder mounting plate 16 and the swing cylinder mounting plate 2 16 are hinged on the clamping frame 13, the swing cylinder 5 is hinged in the middle of the swing cylinder mounting plate 16 and the swing cylinder mounting plate 2 16, the other end of the swing cylinder mounting plate 16 and the swing cylinder mounting plate 2 16 are hinged to the connecting plate 18 and the connecting plate 2 17, the other end of the connecting plate 18 and the connecting plate 2 17 are hinged to one side of the swing joint 1, the swing joint 1 is hinged to the clamping frame 13 through the rotating joint pin bolt 4, the cylinder rod end of the swing cylinder 5 is hinged to the clamping frame 13 through the swing cylinder locating pin 14, the cylinder rod of the swing cylinder 5 is telescopic to drive the cylinder mounting plate 16, the connecting plate 18, the swing cylinder mounting plate 2 16, and the connecting plate 2 17 to move, thereby driving the swing joint 1 to swing left and right, and the left and right swing can be achieved only by single cylinder control, with compact structure, simple and reliable, and low cost.
[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A boom yaw mechanism for an agricultural excavator, characterized in that: include: A clamping frame (13), the clamping frame (13) being fixed on the frame, the clamping frame (13) comprising a frame body, a swing cylinder connecting hole (26) being provided on one side of the frame body, and a connecting hole 1 (18), a connecting hole 2 (20), a connecting hole 3 (19) and a connecting hole 4 (21) being provided on the other side of the frame body; A swing cylinder (5), wherein one end of the swing cylinder (5) is provided with a stud hole (22), and the middle section is provided with upper and lower protruding shafts (23); A swing joint (1), wherein the upper and lower ends of one side of the swing joint (1) are provided with a first pin hole (24), and the side surface is provided with two second pin holes (25) located between the two first pin holes (24); The swing cylinder (5) is connected to the swing cylinder connection hole (26) on the clamping frame (13) via the provided stud hole (22) and is fixed via the swing cylinder positioning pin (14); The connection hole 1 (18) and the connection hole 2 (20) on the clamping frame (13) are connected to one end of the swing cylinder mounting plate 1 (6) and the swing cylinder mounting plate 2 (16); The swing cylinder (5) is located between the first swing cylinder mounting plate (6) and the second swing cylinder mounting plate (16), and the upper and lower protruding shafts (23) are connected to the middle holes provided on the first swing cylinder mounting plate (6) and the second swing cylinder mounting plate (16); The other end of the swing cylinder mounting plate 1 (6) is connected to one end of the connecting plate 1 (8), and the other end of the swing cylinder mounting plate 2 (16) is connected to one end of the connecting plate 2 (17); The other end of the connecting plate 1 (8) is connected to a second pin hole (25) on the swing joint (1), and the other end of the connecting plate 2 (17) is connected to another second pin hole (25) on the swing joint (1); The pin hole 1 (24) at the upper end of the swing joint (1) is connected to the connecting hole 3 (19), and the pin hole 1 (24) at the lower end is connected to the connecting hole 4 (21).
2. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: The connection holes 1 (18) and 2 (20) on the clamping frame (13) correspond to the through holes at one end of the swing cylinder mounting plate 1 (6) and the through holes at one end of the swing cylinder mounting plate 2 (16). A rotating joint pin shaft (9) passes through the four holes to connect the clamping frame (13) with one end of the swing cylinder mounting plate 1 (6) and one end of the swing cylinder mounting plate 2 (16).
3. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: One end of the connecting plate 1 (8), the other end of the swing cylinder mounting plate 1 (6), the other end of the swing cylinder mounting plate 2 (16) and one end of the connecting plate 2 (17) are connected by a rotating joint pin shaft (9) passing through four holes.
4. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: A rubber buffer column (15) is provided on the end surface of the other side of the clamping frame (13).
5. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: A steel sleeve (12) is provided at the connection between the connection hole three (19) and the connection hole four (21), and the pin hole one (24) provided at the upper and lower ends of the swing joint (1) is connected to the connection hole three (19) and the connection hole four (21) through a rotation joint pin bolt (4).
6. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: A long swing cylinder sleeve (11) and a nylon spacer sleeve (10) are provided at the connection between one end of the swing cylinder mounting plate 1 (6) and one end of the swing cylinder mounting plate 2 (16).
7. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: A swing cylinder sleeve (7) is provided at the connection point between the other end of the connecting plate 1 (8) and the other end of the connecting plate 2 (17).
8. The boom yaw mechanism for an agricultural excavator according to claim 1, characterized in that: A nylon gasket (2) and a connecting plate pin shaft (3) are provided at the connection of the second pin hole (25), and the swing joint (1) is connected to the first connecting plate (8) and the second connecting plate (17) via the connecting plate pin shaft (3).