Double-conical-surface connecting device suitable for distributed chassis

Abstract

The double-conical-surface connecting device comprises a front-end frame and a rear-end frame, a concentric conical column connector of the front-end frame is connected with a conical column connector of the rear-end frame, and a fixing ring and an adjustable fastening ring set which are fixedly connected are connected to the outer portion of the front-end frame in a sleeving mode. And the adjustable fastening ring group is positioned at one end close to the rear-end frame and can smoothly move on the front-end frame. According to the double-conical-surface connecting device suitable for the distributed chassis, connection and separation operation can be completed by controlling the power-on state and the power-off state of the powerful electromagnetic ring base, and complex tools and a large amount of manual operation are not needed; compared with a traditional bolt connection mode, the disassembly and assembly time is greatly shortened, and the working efficiency is improved; under the condition that the distributed chassis needs to be frequently disassembled, replaced, maintained or adjusted, the convenience can save the time period and the cost.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical connection devices, and in particular relates to a double-cone connection device suitable for a distributed chassis. Background Art

[0002] In the current development of distributed chassis technology, there are many shortcomings in the frame connection method. Although traditional bolt connections are widely used, they are inefficient when used in distributed chassis. The installation and disassembly process is cumbersome, and tools are required to operate the bolts one by one, which cannot achieve online control. In addition, in the case of frequent disassembly and assembly, the bolts are easy to loosen, affecting the reliability of the connection, which may endanger the stability of the entire chassis structure. Although the welding connection method can provide a strong connection strength, this connection is permanent, which is not conducive to the maintenance and replacement of components of the distributed chassis, and it is even more difficult to meet the distributed requirements such as docking-locking-disassembly. When the chassis needs maintenance, component upgrades or failures occur, the welded frame is difficult to disassemble, which increases the maintenance cost and difficulty. In addition, some existing simple structures or matching connection methods are not stable and convenient when subjected to the complex forces and torques generated during the operation of the distributed chassis. Under the effects of bumps during vehicle driving, lateral forces during steering, inertial forces generated by acceleration and deceleration, the frame is prone to displacement and loosening, which cannot meet the requirements of the distributed chassis for connection stability. Therefore, there is an urgent need for a new connection device that can achieve fast, stable and reliable connection between frames in a distributed chassis, while taking into account the convenience of disassembly and assembly and the ability to withstand complex and. Summary of the invention

[0003] In view of this, the present invention aims to propose a double-conical connection device suitable for a distributed chassis, so as to solve the problem that the existing frame is prone to displacement and loosening during operation and cannot meet the requirements of the distributed chassis for connection stability.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A double-conical surface connection device suitable for a distributed chassis includes a front-end frame and a rear-end frame, and is characterized in that: the concentric conical column interface of the front-end frame is connected to the conical column interface of the rear-end frame, a fixed ring and an adjustable fastening ring group are sleeved and fixedly connected on the outside of the front-end frame, and the adjustable fastening ring group is located at one end close to the rear-end frame, and the adjustable fastening ring group can move smoothly on the front-end frame.

[0006] Furthermore, the front end frame also includes a front end frame rod, and the end of the front end frame rod is provided with a cross notch and a concentric tapered column interface, and the cross notch and the concentric tapered column interface are circumferentially staggered.

[0007] Furthermore, the rear end frame includes a rear end frame rod, which is a U-shaped structure and has a conical column interface at its end.

[0008] Furthermore, the taper V / length of the concentric tapered column interface and the tapered column interface is 1:10.

[0009] Furthermore, the concentric tapered column interface and the tapered column interface are transitionally matched.

[0010] Furthermore, the fixing ring includes a fixing ring seat, which is fixed by welding or assembly at a position 50 mm away from the end face of the front frame, and a plurality of fastening bolt holes are provided at the end of the fixing ring seat, which are used to connect the adjustable fastening ring assembly.

[0011] Furthermore, the adjustable fastening ring group includes a strong electromagnetic ring seat and a movable fastening ring. Several reset spring groups are circumferentially installed between the strong electromagnetic ring seat and the movable fastening ring. One side of the strong electromagnetic ring seat is also provided with several fastening bolts for connecting to the fastening bolt holes. When the strong electromagnetic ring seat is energized, it can generate electromagnetic force to push the movable fastening ring downward.

[0012] Furthermore, the distance between the fixed ring seat and the end surface of the front frame is greater than the sum of the thickness of the strong electromagnetic ring seat, the installation height of the return spring group and the thickness of the movable fastening ring.

[0013] Furthermore, the movable fastening ring is a concentric ring with a thickness greater than 30 mm.

[0014] Furthermore, the front-end frame and the rear-end frame are both symmetrical structures.

[0015] Compared with the prior art, the double-cone connection device suitable for a distributed chassis according to the present invention has the following advantages:

[0016] (1) The double-conical connection device suitable for the distributed chassis described in the present invention has a significant convenience advantage during the disassembly and assembly process. The connection and separation operations can be completed by controlling the power-on and power-off states of the powerful electromagnetic ring seat, without the need for complex tools and a large amount of manual operation. Compared with the traditional bolt connection method, the disassembly and assembly time is greatly shortened and the work efficiency is improved. In the case where the distributed chassis needs to be frequently disassembled, parts replaced, repaired or adjusted, this convenience can save time and cost.

[0017] (2) The double-conical surface connection device suitable for a distributed chassis described in the present invention has a reasonable structural design and obvious connection stability. Through the conical surface matching and transition matching of the front and rear end frames, it has unique advantages in bearing axial force, radial force and torque. The self-centering and self-tightening characteristics of the conical surface enable the frames to maintain good alignment and tight connection during vehicle driving, even under the action of forces generated by complex working conditions such as bumps and turns, effectively preventing relative displacement and loosening, and ensuring the overall stability of the distributed chassis. The adjustable fastening ring group also has a reinforcing effect. Through the mutual cooperation of the strong electromagnetic ring seat and the return spring group, the movable fastening ring can be flexibly controlled, further improving the stability of the connection. Through the fault-tolerant characteristics of the cross notch, the robustness of the front and rear frames is enhanced. Under normal working conditions, the movable fastening ring can apply a continuous fastening force to the rear end frame under the joint action of the electromagnetic force and the spring force. This multiple action can effectively resist the influence of external vibration, impact and other factors on the connection, ensuring that the connection will not loosen during long-term use.

[0018] (3) The double-conical connection device suitable for a distributed chassis described in the present invention can withstand various complex loads generated during the operation of the distributed chassis. When the vehicle accelerates, decelerates, turns, and travels on different road conditions, the chassis will be subjected to forces of various directions and magnitudes. The structural characteristics of the conical connection enable it to evenly disperse the force and avoid stress concentration when bearing these complex loads. At the same time, the presence of the fastening ring group further enhances the connection device's ability to withstand complex loads, ensuring that the connection between the frames can remain stable under various working conditions, thereby ensuring the structural integrity and safety of the distributed chassis.

[0019] (4) The double-cone connection device for a distributed chassis described in the present invention can show good repeatability during multiple uses. Whether it is multiple connection or multiple separation operations, the performance of the connection device can be guaranteed to be stable after each operation. The structural innovation, the combination of mechanical force, spring force and electromagnetic force will not cause performance degradation due to the increase in the number of uses. This feature makes the present invention highly reliable in an environment of long-term use and frequent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of a double-cone connection device applicable to a distributed chassis according to an embodiment of the present invention;

[0022] Figure 2An exploded view of a double-conical surface connection device applicable to a distributed chassis according to an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a front-end frame according to an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of a rear end frame according to an embodiment of the present invention;

[0025] Figure 5 (a) a schematic diagram of the taper of a tapered column interface according to an embodiment of the present invention, (b) a schematic diagram of the taper of a concentric tapered column interface according to an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a fixing ring according to an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of an adjustable fastening ring assembly according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of a high-power electromagnetic ring seat according to an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Front end frame; 1-1. Front end frame rod; 1-2. Cross notch; 1-3. Concentric tapered column interface; 2. Rear end frame; 2-1. Rear end frame rod; 2-2. Tapered column interface; 3-Fixed ring; 3-1. Fixed ring seat; 3-2. Fastening bolt hole; 4. Adjustable fastening ring assembly; 4-1. Strong electromagnetic ring seat; 4-2. Movable fastening ring; 4-3. Return spring assembly; 4-4. And fastening bolts. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] A double cone connection device suitable for distributed chassis, such as Figures 1 to 8 As shown, it includes a front-end frame 1, a rear-end frame 2, a fixed ring 3 and an adjustable fastening ring group 4. The front-end frame 1 and the rear-end frame 2 are transitionally matched. The front-end frame 1 is externally sleeved with the fixedly connected fixed ring 3 and the adjustable fastening ring group 4, and the adjustable fastening ring group 4 is located at one end close to the rear-end frame 2. The adjustable fastening ring group 4 can move smoothly on the front-end frame 1.

[0036] The front-end frame 1 includes a front-end frame rod 1-1, a cross notch 1-2, and a concentric tapered column interface 1-3. The front-end frame rod 1-1 serves as the main structure of the entire front-end frame and provides support for other components. A cross notch 1-2 and a concentric tapered column interface 1-3 are provided at the end of the front-end frame rod 1-1, and the cross notch 1-2 and the concentric tapered column interface 1-3 are arranged circumferentially in an interlaced manner. The function of the cross notch 1-2 is to facilitate alignment and positioning during the frame docking process, improve the convenience of connection and play a fault-tolerant role. The concentric tapered column interface 1-3 is a key part connected to the rear-end frame 2, and its taper design is one of the important factors for the connection stability and reliability of the present invention.

[0037] The rear frame 2 includes a rear frame rod 2-1 and a tapered column interface 2-2. The rear frame rod 2-1 is a U-shaped structure, and a tapered column interface 2-2 is provided at the end. The rear frame rod 2-1 and the front frame rod 1-1 cooperate with each other in structure and have similar functions, and jointly bear the load of the chassis.

[0038] The concentric conical column interface 1-3 and the conical column interface 2-2 have a taper V of (large diameter - small diameter) / length = 1: 10. This precise taper ratio can be determined by referring to practical experience and theoretical calculations, while ensuring the tightness of the connection, allowing the frame to be smoothly connected and separated under reasonable external force.

[0039] The concentric tapered column interface 1-3 and the tapered column interface 2-2 are transitionally matched.

[0040] The fixing ring 3 includes a fixing ring seat 3-1 and a fastening bolt hole 3-2. The fixing ring seat 3-1 is fixed by welding or assembly at a position 50 mm from the end surface of the front frame 1. A plurality of fastening bolt holes 3-2 are provided at the end of the fixing ring seat 3-1. The fastening bolt holes 3-2 are used to connect the adjustable fastening ring set 4. The size and position accuracy of the fastening bolt holes 3-2 have an important influence on the performance of the connection device.

[0041] The adjustable fastening ring group 4 includes a strong electromagnetic ring seat 4-1, a movable fastening ring 4-2, a reset spring group 4-3 and a fastening bolt 4-4. A plurality of reset spring groups 4-3 are circumferentially installed between the strong electromagnetic ring seat 4-1 and the movable fastening ring 4-2. The reset spring group 4-3 ensures uniform transmission of force and plays a key auxiliary role in the connection and separation process. Preferably, the height of the reset spring group 4-3 is 10 mm, and a plurality of fastening bolts 4-4 are also provided on one side of the strong electromagnetic ring seat 4-1. The fastening bolts 4-4 are used to connect to the fastening bolt hole 3-2. The strong electromagnetic ring seat 4-1 is made of a strong electromagnet material, and its internal electromagnetic structure design can generate sufficient electromagnetic force when powered on to provide power for the fastening process. After power is turned on, electromagnetic force can be generated to push the movable fastening ring 4-2 to move downward.

[0042] During installation, the position of the fixed ring seat 3-1 should be accurate, and the distance between the installation position and the end surface of the front frame 1 should be greater than the sum of the thickness of the strong electromagnetic ring seat 4-1, the installation height of the return spring group 4-3 and the thickness of the movable fastening ring 4-2.

[0043] The movable fastening ring 4-2 is a concentric ring with a thickness of more than 30 mm to ensure sufficient stress strength. The material is high-strength alloy steel and has a clearance fit with the front end frame 1. This fit ensures that the movable fastening ring 4-2 can move smoothly on the front end frame 1 under the action of electromagnetic force and spring force.

[0044] In order to ensure the stability and reliability of the device, the front end frame 1 and the rear end frame 2 are provided with two sets of double-cone connection devices on the left and right sides.

[0045] The working principle of a double cone connection device suitable for a distributed chassis is:

[0046] When the front frame 1 and the rear frame 2 (hereinafter referred to as "front and rear frames") are docked, the strong electromagnetic ring seat 4-1 is in a powered state, generating electromagnetic force, and the reset spring group 4-3 is in a stretched state. At this time, the rear end face of the movable fastening ring 4-2 moves to the lower dead center 5 mm away from the end face of the front frame 1. In this state, the conical column interface 2-2 of the rear frame 2 is aligned with the concentric conical column 1-3 of the front frame 1 and inserted. Since the two are transitional fits, the cross notch 1-1 of the front frame 1 can be used for preliminary alignment during the insertion process. After the insertion is completed, the strong electromagnetic ring seat 4-1 is powered off, the electromagnetic force disappears, the reset spring group 4-3 is reset, and the spring force acts on the movable fastening ring 4-2 to move it upward. The reset spring group 4-3 returns to the initial installation length of 10 mm, and the rear end face of the movable fastening ring 4-2 moves to the upper dead center 10 mm away from the end face of the front frame 1.

[0047] When the front and rear frames are docked, the speed of the rear frame 2 is greater than that of the front frame 1, and the rear frame 2 is inserted into the front frame 1 at a certain speed. The conical column interface 2-2 on the rear frame 2 extends into the concentric conical column interface 1-3 on the strong front frame 1 at a certain speed difference. The cross notch 1-2 can convert the axial impact force of the conical column interface 2-2 into radial pressure, and the cross notch 1-2 expands to generate tension. At this time, the strong electromagnetic ring seat 4-1 is powered off, the electromagnetic force disappears, the reset spring group 4-3 is reset, and the movable fastening ring 4-2 moves upward to the upper dead center. At this time, the upper dead center position just corresponds to the concentric conical column interface 1-3 and the conical column interface 2-2 The large diameter position of the conical column can play a locking role. Under the interaction of the cross notch 1-2 and the movable fastening ring 4-2, the conical column interface 2-2 on the rear frame 2 is firmly fixed in the concentric conical column interface 1-3 on the front frame 1, and a stable connection is achieved.

[0048] When the front and rear frames need to be separated, the speed of the rear frame 2 is lower than that of the front frame 1, and the rear frame 2 is pulled away from the front frame 1 at a certain speed. The strong electromagnetic ring seat 4-1 is energized again, and the electromagnetic force appears again. The electromagnetic force is greater than the elastic force of the return spring group 4-3, and the movable fastening ring 4-2 moves downward to loosen the rear frame 2, thereby realizing easy separation of the front and rear frames.

[0049] The device is suitable for any mechanical product that uses a rocking distributed chassis and can be widely used in schools, factories, mines, enterprises, and vehicle research and development, testing, certification and other fields. In addition, the entire device has a reasonable design, a simple structure and a low production cost.

[0050] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-cone connection device suitable for a distributed chassis, comprising a front frame and a rear frame, characterized in that: The concentric tapered column interface of the front frame is connected to the tapered column interface of the rear frame. The front frame is externally sleeved with a fixedly connected fixing ring and an adjustable fastening ring group. The adjustable fastening ring group is located at one end close to the rear frame. The adjustable fastening ring group can move smoothly on the front frame.

2. A double-cone connection device suitable for a distributed chassis according to claim 1, characterized in that: The front-end vehicle frame also includes a front-end vehicle frame rod, and the end of the front-end vehicle frame rod is provided with a cross notch and a concentric tapered column interface, and the cross notch and the concentric tapered column interface are circumferentially staggered.

3. A double-cone connection device suitable for a distributed chassis according to claim 2, characterized in that: The rear end frame comprises a rear end frame rod, which is a U-shaped structure and has a conical column interface at the end.

4. A double-cone connection device suitable for a distributed chassis according to claim 3, characterized in that: The taper V / length of the concentric tapered column interface and the tapered column interface is 1:

10.

5. A double-cone connection device suitable for a distributed chassis according to claim 3, characterized in that: The concentric tapered column interface and the tapered column interface are transition fits.

6. A double-cone connection device suitable for a distributed chassis according to claim 2, characterized in that: The fixing ring includes a fixing ring seat, which is fixed by welding or assembly at a distance of 50 mm from the end face of the front frame. A plurality of fastening bolt holes are arranged at the end of the fixing ring seat, and the fastening bolt holes are used to connect the adjustable fastening ring assembly.

7. A double-cone connection device suitable for a distributed chassis according to claim 6, characterized in that: The adjustable fastening ring group includes a strong electromagnetic ring seat and a movable fastening ring. Several reset spring groups are circumferentially installed between the strong electromagnetic ring seat and the movable fastening ring. One side of the strong electromagnetic ring seat is also provided with several fastening bolts for connecting to the fastening bolt holes. When the strong electromagnetic ring seat is energized, it can generate electromagnetic force to push the movable fastening ring downward.

8. A double-cone connection device suitable for a distributed chassis according to claim 7, characterized in that: The distance between the fixed ring seat and the end surface of the front frame is greater than the sum of the thickness of the strong electromagnetic ring seat, the installation height of the return spring group and the thickness of the movable fastening ring.

9. A double-cone connection device suitable for a distributed chassis according to claim 7, characterized in that: The movable fastening ring is a concentric ring with a thickness greater than 30 mm.

10. A double-cone connection device suitable for a distributed chassis according to claim 1, characterized in that: The front end frame and the rear end frame are both symmetrical structures.

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