Driving arm capable of being rapidly replaced

Abstract

The utility model discloses a driving arm capable of realizing quick replacement, which belongs to the field of driving arms and comprises a driving arm body, the driving arm body is fixedly connected onto a frame through mounting mechanisms on two sides of the top surface of the driving arm body, each mounting mechanism comprises a mounting seat, a two-way screw, a movable plate and a connecting plate, and the arranged mounting mechanisms are matched with the driving arm body for use. After the positioning rod is inserted into the positioning groove, the rotary knob is rotated to drive the bidirectional screw rod to rotate through the rotating rod, the symmetrical movable plates move oppositely, then the threaded short rod is inserted into the connecting hole, and finally, the nut is screwed into the threaded short rod, so that the driving arm body and the frame can be fixedly connected together; when the driving arm body is detached from the frame, the rotary knob is rotated reversely to enable the symmetrical movable plates to move relatively, the threaded short rod is moved out of the connecting hole, and then the driving arm body can be detached from the frame, so that the purpose of conveniently and rapidly detaching and replacing the driving arm body is achieved.

Description

Technical Field

[0001] The utility model relates to the field of driving arms, in particular to a driving arm which can realize rapid replacement. Background Art

[0002] The drive arm, also called the drive axle, is a mechanism at the end of the transmission system that can change the speed and torque from the transmission and transmit them to the drive wheels. The drive axle is generally composed of a main reducer, a differential, a gear transmission device, and a drive axle housing, and the steering drive axle also has a constant velocity joint. In addition, the drive axle must also withstand the vertical force, longitudinal force and lateral force acting between the road surface and the frame or body, as well as the braking torque and reaction force.

[0003] In the prior art, the driving arm is usually installed on the frame of the automobile chassis, and the driving arm can be installed in two ways. One is to weld and fix the driving arm on the frame by welding, and the other is to open a mounting hole on the joint surface of the driving arm and the frame and then fix the driving arm on the frame by bolts. However, these two methods are relatively complicated to install the driving arm, resulting in inconvenience in disassembling and replacing the driving arm when the driving arm fails and needs maintenance and replacement. Utility Model Content

[0004] The main purpose of the utility model is to provide a driving arm that can be quickly replaced, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A driving arm that can be quickly replaced comprises a driving arm body, wherein the driving arm body is fixedly connected to a frame via mounting mechanisms on both sides of a top surface, and the mounting mechanism comprises a mounting seat, a bidirectional screw, a movable plate and a connecting plate, wherein the mounting seat is fixedly connected to both sides of the top surface of the driving arm body, and the bidirectional screw is movably connected in the top surface of the mounting seat via rotating rods at both ends, the two movable plates are movably connected in the top surface of the movable plates via sliders on both sides respectively, and the movable plates are also movably connected to the bidirectional screws via screw holes on the side walls, the connecting plates are fixedly connected to the top surface of the movable plates, and the connecting plates are fixedly connected to the bottom plates on both sides of the bottom surface of the frame via nuts.

[0007] Preferably, a group of symmetrical bottom plates are fixedly connected to both sides of the bottom surface of the frame, and a group of symmetrical positioning grooves are opened on the bottom surface of the bottom plate, and a group of symmetrical short threaded rods are fixedly installed on the opposite surface walls of the symmetrical bottom plates.

[0008] Preferably, mounting seats are fixedly installed on both sides of the top surface of the driving arm body, and a through opening is opened on the top surface of the mounting seat, sliding openings are opened on the left and right side walls inside the through opening, and rotating holes are opened on the front and rear side walls inside the through opening.

[0009] Preferably, positioning rods are fixedly mounted on the four corner ends of the top surface of the mounting seat, and the positioning rods are inserted and mounted in the positioning grooves.

[0010] Preferably, a rotating rod is fixedly mounted on the front and rear ends of the bidirectional screw rod, and the rotating rod is movably mounted in the rotating hole. A knob is also fixedly mounted on the end wall of the rotating rod at the front end.

[0011] Preferably, a rotating rod is fixedly mounted on the front and rear ends of the bidirectional screw rod, and the rotating rod is movably mounted in the rotating hole. A knob is also fixedly mounted on the end wall of the rotating rod at the front end.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the installation mechanism is used in conjunction with the driving arm body. After the positioning rod is inserted into the positioning groove, the knob is rotated to drive the bidirectional screw to rotate through the rotating rod, so that the symmetrical movable plates make opposite movements, and the threaded short rod is inserted into the connecting hole. Finally, the nut is screwed onto the threaded short rod, and the driving arm body and the frame are fixedly connected together. When disassembling, the nut is unscrewed, and the knob is rotated in the opposite direction to make the symmetrical movable plates move relatively, so that the threaded short rod is moved out of the connecting hole, and the driving arm body can be disassembled from the frame, thereby achieving the purpose of facilitating the rapid disassembly and replacement of the driving arm body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the frame of the utility model;

[0016] Figure 3 It is a schematic diagram of the structural disassembly of the installation mechanism of the utility model.

[0017] In the figure: 1. driving arm body; 2. frame; 3. mounting mechanism; 4. bottom plate; 5. positioning groove; 6. threaded short rod; 7. mounting seat; 8. through opening; 9. sliding opening; 10. rotating hole; 11. positioning rod; 12. bidirectional screw; 13. rotating rod; 14. knob; 15. movable plate; 16. screw hole; 17. slider; 18. connecting plate; 19. connecting hole; 20. nut. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 - Figure 3 As shown, a driving arm that can be quickly replaced includes a driving arm body 1, which is fixedly connected to the frame 2 through mounting mechanisms 3 on both sides of the top surface, and the mounting mechanism 3 includes a mounting seat 7, a bidirectional screw 12, a movable plate 15 and a connecting plate 18. The mounting seat 7 is fixedly connected to both sides of the top surface of the driving arm body 1, and the bidirectional screw 12 is movably connected in the top surface of the mounting seat 7 through rotating rods 13 at both ends. The two movable plates 15 are movably connected in the top surface of the movable plate 15 through sliders 17 on both sides respectively, and the movable plate 15 is also movably connected to the bidirectional screw 12 through screw holes 16 on the side walls. The connecting plate 18 is fixedly connected to the top surface of the movable plate 15, and the connecting plate 18 is fixedly connected to the bottom plate 4 on both sides of the bottom surface of the frame 2 through nuts 20.

[0020] like Figure 1 - Figure 3 As shown, in this embodiment, in order to facilitate the disassembly, assembly and replacement of the driving arm body 1 through the mounting mechanism 3, a group of symmetrical bottom plates 4 are fixedly connected to both sides of the bottom surface of the frame 2, and a group of symmetrical positioning grooves 5 are opened on the bottom surface of the bottom plate 4, and a group of symmetrical threaded short rods 6 are fixedly installed on the opposite surface walls of the symmetrical bottom plates 4, and mounting seats 7 are fixedly installed on both sides of the top surface of the driving arm body 1, and a through opening 8 is opened on the top surface of the mounting seat 7, and sliding openings 9 are opened on the left and right side walls inside the through opening 8, and rotating holes 10 are opened on the front and rear side walls inside the through opening 8, and positioning rods 11 are fixedly installed on the four corner ends of the top surface of the mounting seat 7, and the positioning rods 11 are inserted into the The movable plate 15 is installed in the positioning groove 5, the front and rear ends of the bidirectional screw 12 are respectively fixedly installed with a rotating rod 13, and the rotating rod 13 is movably installed in the rotating hole 10, and the end wall of the front rotating rod 13 is also fixedly installed with a knob 14, a screw hole 16 is provided on the front end wall of the movable plate 15, and the movable plate 15 is threadedly connected with the bidirectional screw 12 through the screw hole 16, and sliders 17 are respectively fixedly installed on both sides of the movable plate 15, and the sliders 17 are movably installed in the sliding mouth 9, the connecting plate 18 is fixedly installed on the top surface of the movable plate 15, and a connecting hole 19 is provided on the front end wall of the connecting plate 18, the threaded short rod 6 is inserted and installed in the connecting hole 19, and the nut 20 is threadedly connected with the threaded short rod 6;

[0021] The specific use principle of the mounting mechanism 3 in conjunction with the driving arm body 1 is as follows: when installing the driving arm body 1, the positioning rods 11 installed at the four corner ends of the top surface of the mounting seats 7 on both sides of the top surface of the driving arm body 1 are inserted into the positioning grooves 5 provided on the bottom surface of the symmetrical bottom plate 4 installed on both sides of the bottom surface of the frame 2, and then the knob 14 located at the front part of the mounting seat 7 is rotated. The knob 14 will drive the rotating rods 13 installed at the front and rear ends of the two-way screw 12 to rotate in the rotating holes 10 provided on the front and rear side walls inside the through opening 8 on the top surface of the mounting seat 7, and the rotating rod 13 will drive the two-way screw 12 to rotate inside the through opening 8. At this time, because the symmetrical movable plates 15 are respectively threadedly connected with the two-way screw 12 through the screw holes 16 provided on the front end walls, the movable plates 15 will move inside the through opening 8 along the two-way screw 12 through the screw holes 16, and the sliders 17 installed on both sides of the movable plates 15 will slide in the sliding openings 9 provided on the left and right side walls inside the through opening 8. At this time, The movable plate 15 is said to be relatively moved, and the knob 14 is continuously rotated until the threaded short rod 6 installed on the opposite wall of the symmetrical bottom plate 4 is inserted into the connecting hole 19 opened on the front end wall of the connecting plate 18 installed on the top surface of the movable plate 15, and the knob 14 can no longer be rotated. Finally, the nut 20 is screwed into and installed on the threaded short rod 6 and threadedly connected with it. In this way, the driving arm body 1 can be quickly installed on the frame 2. When the driving arm body 1 fails or is damaged and the driving arm body 1 needs to be replaced, the nut 20 is unscrewed from the threaded short rod 6, and the knob 14 is rotated in the opposite direction to make the symmetrical movable plate 15 perform a relative movement operation and drive the connecting plate 18 installed on the top surface to perform a synchronous movement operation, until the threaded short rod 6 is removed from the connecting hole 19, the driving arm body 1 is disassembled from the frame 2 and a new driving arm body 1 is reinstalled, thereby achieving the purpose of facilitating the rapid disassembly and replacement of the driving arm body 1.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced by equivalents, or some of its technical features may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A driving arm capable of realizing rapid replacement, comprising a driving arm body (1), characterized in that: The driving arm body (1) is fixedly connected to the vehicle frame (2) via mounting mechanisms (3) on both sides of the top surface, and the mounting mechanism (3) comprises a mounting seat (7), a bidirectional screw (12), a movable plate (15) and a connecting plate (18). The mounting seat (7) is fixedly connected to both sides of the top surface of the driving arm body (1), and the bidirectional screw (12) is movably connected to the top surface of the mounting seat (7) via rotating rods (13) at both ends. The two movable plates (15) are movably connected to the top surface of the movable plate (15) via sliders (17) on both sides, respectively, and the movable plate (15) is also movably connected to the bidirectional screw (12) via screw holes (16) on the side walls. The connecting plate (18) is fixedly connected to the top surface of the movable plate (15), and the connecting plate (18) is fixedly connected to the bottom plate (4) on both sides of the bottom surface of the vehicle frame (2) via nuts (20).

2. A driving arm capable of realizing rapid replacement according to claim 1, characterized in that: A group of symmetrical bottom plates (4) are fixedly connected to both sides of the bottom surface of the vehicle frame (2), and a group of symmetrical positioning grooves (5) are provided on the bottom surface of the bottom plates (4). A group of symmetrical short threaded rods (6) are fixedly mounted on opposite surface walls of the symmetrical bottom plates (4).

3. A driving arm capable of realizing rapid replacement according to claim 2, characterized in that: Mounting seats (7) are fixedly mounted on both sides of the top surface of the driving arm body (1), and a through opening (8) is provided on the top surface of the mounting seat (7). Sliding openings (9) are provided on the left and right side walls inside the through opening (8), and rotating holes (10) are provided on the front and rear side walls inside the through opening (8).

4. The driving arm capable of realizing rapid replacement according to claim 3, characterized in that: Positioning rods (11) are fixedly mounted on the four corner ends of the top surface of the mounting seat (7), and the positioning rods (11) are inserted and mounted in the positioning grooves (5).

5. The driving arm capable of realizing rapid replacement according to claim 4, characterized in that: A rotating rod (13) is fixedly mounted on the front and rear ends of the bidirectional screw rod (12), respectively, and the rotating rod (13) is movably mounted in the rotating hole (10). A knob (14) is also fixedly mounted on the end wall of the rotating rod (13) at the front end.

6. The driving arm capable of realizing rapid replacement according to claim 5, characterized in that: A screw hole (16) is provided on the front end wall of the movable plate (15), and the movable plate (15) is threadedly connected to the bidirectional screw rod (12) through the screw hole (16). Slide blocks (17) are fixedly installed on both sides of the movable plate (15), and the slide blocks (17) are movably installed in the sliding opening (9). The connecting plate (18) is fixedly installed on the top surface of the movable plate (15), and a connecting hole (19) is provided on the front end wall of the connecting plate (18). The threaded short rod (6) is inserted into the connecting hole (19), and the nut (20) is threadedly connected to the threaded short rod (6).

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