Modular work implement quick change mechanism

Abstract

The application relates to a kind of modular work device quick-change mechanisms, the semicircular boss of the lower end of the transition plate of quick-change mechanism is inserted in the semicircular groove general interface on the front end of mobile platform, the upper end is positioned and released through the latch device, the push frame is connected on the first ear seat in front of the transition plate, the frame body on the left and right sides of the push frame is provided with upper and lower through installation grooves, the second connecting piece for connecting the work device is arranged on the front end of the push frame, the upper end of the upper connecting rod is connected on the second ear seat on the transition plate, the lower end of the lower connecting rod is connected on the front part in the installation groove of the push frame, the oil cylinder is installed in the installation groove of the push frame, the output end of the oil cylinder is hinged together with the lower end of the upper connecting rod and the upper end of the lower connecting rod, the geometric angular position of each swing connecting rod in the four-bar linkage mechanism is changed by the extension and contraction of the oil cylinder to realize the lifting or falling of the work device.The application has simple structure, easy installation and replacement, different work devices can be quickly replaced in the face of different work scenes, and the adaptability and work efficiency of the engineering mechanism are improved.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery, and more specifically to a quick-change mechanism for a modular operating device. Background Technology

[0002] With the progress of human civilization, people's production and living conditions have transformed from scarcity to abundance. Various industries have shifted from extensive to intensive development, and products have moved beyond simply meeting basic needs to demanding high quality and superior performance. This environment has forced companies to actively consider how to improve product performance and expand functionality to enhance competitiveness and cost-effectiveness. The construction machinery industry is no exception, striving to reduce user costs in terms of operation, maintenance, support, and management.

[0003] Construction machinery is widely used in national defense construction, transportation construction, energy industry construction and production, raw material industry construction and production such as mining, agriculture, forestry and water conservancy construction, industrial and civil construction, urban construction, environmental protection and other fields. Currently, most existing construction machinery has a single function, typically one machine per function, with one working device per machine. For multi-scenario operations, different construction machinery needs to be used in coordination to complete the task, resulting in long working times and low efficiency. While some construction machinery can be equipped with interchangeable working devices, the different structures of these devices lack universal interfaces, making installation and replacement inconvenient, time-consuming, and labor-intensive, and preventing rapid device replacement. Therefore, the market urgently needs to research a quick-change mechanism to adapt to the development of construction machinery. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a modular quick-change mechanism for working devices. This quick-change mechanism is installed as an integral module on a mobile platform, which is convenient to install and replace. It can quickly change different working devices for different working scenarios, thereby improving the adaptability and working efficiency of the engineering mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a modular operating device quick-change mechanism, wherein the quick-change mechanism is mounted on a mobile platform, and the quick-change mechanism comprises: The transition plate is a plate-shaped structure, with its bottom installed at the front end of the moving platform. The lower part of the front of the transition plate is provided with left and right symmetrical first ear seats, and the upper part of the rear of the transition plate is provided with left and right symmetrical and rearward protruding connecting grooves. Each connecting groove is provided with a first connecting member. The two first connecting members are provided with a first through hole on the same axis. The top of the two first connecting members is provided with a second ear seat. The two second ear seats are provided with a second through hole parallel to the axis of the first through hole. A semi-circular boss is provided at the bottom of the transition plate. A pin device, configured as a means of locking or releasing the transition plate, is mounted on the upper front end of the moving platform via a base, with both ends of the pin device connected to a first through hole on a first connector on the transition plate. The push frame is connected to the first ear seat in front of the transition plate. The frame on the left and right sides of the push frame is provided with an upper and lower through mounting groove. A second connecting piece for connecting the working device is provided at the front end of the push frame. The upper connecting rod, the upper end of which is connected to the second lug on the transition plate; The lower connecting rod, the lower end of which is connected to the front part of the mounting slot on the pusher; The hydraulic cylinder is configured as a power actuator for lifting or lowering the working device. It is installed in the mounting slot on the push frame. The output end of the hydraulic cylinder is hinged to the lower end of the upper connecting rod and the upper end of the lower connecting rod. The lifting or lowering of the working device is achieved by changing the geometric angular position of each swinging link in the four-bar linkage formed by the transition plate-push frame-lower connecting rod-upper connecting rod through the extension and retraction of the hydraulic cylinder.

[0006] As a preferred technical solution of the present invention, the lower front end of the mobile platform is provided with a universal interface, which is a semi-circular groove. The semi-circular boss at the bottom of the transition plate is inserted into the semi-circular groove. The insertion of the semi-circular boss / groove restricts the four degrees of freedom of the transition plate in the x-axis translation / rotation and in the y-axis translation / rotation.

[0007] As a preferred embodiment of the present invention, the pin device uses a built-in hydraulic cylinder to drive the pins at both ends to extend relative to each other and insert into the first through hole of the first connector on the transition plate to lock the transition plate and restrict the transition plate's translational / rotational degrees of freedom in the z-axis, or uses a built-in hydraulic cylinder to drive the pins at both ends to retract relative to each other to release them from the first through hole on the first connector.

[0008] As a preferred embodiment of the present invention, the first connector is an arc-shaped connector that protrudes and is welded to the center of the connecting groove, and the second ear is arranged parallel to the top of the first connector, with the thickness of the second ear being less than the thickness of the first connector.

[0009] As a preferred embodiment of the present invention, a set of first ear seats perpendicular to the transition plate and symmetrical on the left and right are provided at the lower part of the front of the transition plate. A square through hole is provided on the transition plate between each set of ear seats. The rear end of the pusher is inserted between each set of first ear seats and hinged by a second pin.

[0010] As a preferred embodiment of the present invention, the transition plate has a through groove with rounded ends in the middle section from top to bottom.

[0011] As a preferred embodiment of the present invention, the two ends of the upper connecting rod are fork-shaped structures, and the upper end of the upper connecting rod is inserted into the outside of the second ear seat and hinged through the fourth pin.

[0012] As a preferred embodiment of the present invention, the hydraulic cylinder is installed in the middle position of the mounting groove of the pusher frame via a first pin.

[0013] As a preferred embodiment of the present invention, the lower end of the lower connecting rod is located at the front position in the mounting groove of the push frame body through the fifth pin, and the upper end of the lower connecting rod is a fork-shaped structure, the width of the fork-shaped structure at the upper end of the lower connecting rod is smaller than the width of the fork-shaped structure at the lower end of the upper connecting rod.

[0014] As a preferred embodiment of the present invention, the fork-shaped structure at the upper end of the lower connecting rod is inserted into the fork-shaped structure at the lower end of the upper connecting rod and is hinged to the output end of the oil cylinder through a third pin.

[0015] Based on the above technical solution, the present invention has at least the following advantages compared with the prior art: The quick-change mechanism of this invention has a simple structure and is an integral modular structure. The working device is installed at the front end of the quick-change mechanism. By inserting the semi-circular boss at the bottom of the transition plate into the semi-circular groove universal interface at the front end of the moving platform, the transition plate is restricted to four degrees of freedom: translation / rotation on the x-axis and translation / rotation on the y-axis. The upper end of the transition plate is locked or released by a pin device that extends or retracts relative to each other, restricting the transition plate to two degrees of freedom: translation / rotation on the z-axis. This greatly improves the stability and reliability of the quick-change mechanism installation, and installation and replacement are quick, convenient, time-saving, and labor-saving. The quick-change mechanism changes the geometric angle position of each swing link in the four-bar linkage formed by the transition plate-push frame-upper link-lower link through the extension and retraction of the hydraulic cylinder, realizing the lifting or lowering of the quick-change mechanism. This improves the adaptability and operating efficiency of the engineering machinery, enabling multi-functionality and increasing the utilization rate of the engineering machinery, meeting the operational needs of different scenarios.

[0016] In summary, the quick-change mechanism of the present invention has at least the aforementioned advantages and practical value. It is an innovation as no similar products have been publicly disclosed or used in the same category. It produces a user-friendly and practical effect, has improved technical effects compared with existing technologies, is more suitable for practical use, and has broad industrial value, making it suitable for promotion and application.

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the quick-change device of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the quick-change device of the present invention; Figure 3 This is a partial structural schematic diagram of the quick-change mechanism in this invention; Figure 4 This is a schematic diagram showing the connection between the quick-change mechanism and the mobile platform in this invention; Figure 5 This is a diagram showing the lifting state of the quick-change mechanism in this invention; Figure 6 This is a diagram showing the landing state of the quick-change mechanism in this invention; Figure 7 This is a schematic diagram of the transition plate in this invention; Figure 8 This is a structural schematic diagram of the transition plate in this invention from another perspective; Figure 9 This is a schematic diagram of the four-bar linkage mechanism in this invention.

[0019] The reference numerals in the figure are as follows: 1-moving platform, 2-pin device, 3-push frame, 4-transition plate, 5-upper connecting rod, 6-lower connecting rod, 7-oil cylinder, 8-first pin, 9-third pin, 10-third pin, 11-fourth pin, 12-fifth pin, 13-base, 14-first lug, 15-connecting groove, 16-first connector, 17-second lug, 18-mounting groove, 19-second connector, 20-through groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," "fourth," or "fifth" may explicitly or implicitly include one or more of that feature.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] like Figures 1 to 9 The illustration shows a schematic embodiment of the modular work device quick-change mechanism provided by the present invention. In this schematic embodiment, the quick-change mechanism is installed on a mobile platform. The mobile platform can be an engineering or agricultural institution, such as the bulldozing device of a bulldozer, the obstacle clearing device of a road rescue vehicle, a mine clearance and explosive ordnance disposal device, an oil drilling equipment, etc. The quick-change mechanism of the present invention is suitable for installation in any situation where movement or work condition changes are required during the execution of a work task, especially in scenarios where work tools need to be put down during the execution of a task and lifted up for retrieval when moving to another site.

[0026] Quick-change mechanisms include: The transition plate 4 is a plate-shaped structure, with its bottom installed at the front end of the moving platform 1. The lower front part of the transition plate 4 has symmetrical left and right first lugs 14, and the upper rear part of the transition plate 4 has symmetrical left and right and rearward-protruding connecting grooves 15. Each connecting groove 15 contains a first connector 16. The two first connectors 16 have coaxial first through holes, and the top of each of the two first connectors 16 has a second lug 17. The two second lugs 17 have second through holes parallel to the axis of the first through holes. A semi-circular boss is provided at the bottom of the transition plate 4. Figure 7 , Figure 8 As shown.

[0027] The pin device 2 is configured to lock or release the transition plate 4. It is mounted on the upper front end of the mobile platform 1 via the base 13. Both ends of the pin device 2 are connected to the first through hole on the first connector 16 on the transition plate 4.

[0028] Push frame 3 is connected to the first ear seat 14 in front of the transition plate 4. The frame body on the left and right sides of push frame 3 is provided with upper and lower through mounting grooves 18. The front end of push frame 3 is provided with a second connecting piece 19 for connecting the working device.

[0029] The upper link 5 is connected at its upper end to the second lug 17 on the transition plate 4.

[0030] The lower link 6 is connected at its lower end to the front part of the mounting slot 18 on the pusher 3.

[0031] The hydraulic cylinder 7 is configured as a power actuator for lifting or lowering the working device. It is installed in the mounting groove 18 on the push frame 3. The output end of the hydraulic cylinder 7 is hinged to the lower end of the upper connecting rod 5 and the upper end of the lower connecting rod 6. The lifting or lowering of the working device is achieved by changing the geometric angle position of each swinging link in the four-bar linkage formed by the transition plate-push frame-lower connecting rod-upper connecting rod through the extension and retraction of the hydraulic cylinder 7.

[0032] Installation and working principle of the quick-change mechanism of the modular operating device of the present invention: The quick-change mechanism of this invention has an integral modular structure. The working device is installed at the front end of the quick-change mechanism. During installation, the semi-circular boss at the bottom of the transition plate 4 is inserted into the semi-circular groove universal interface set at the front end of the moving platform 1. In this way, the four degrees of freedom of the transition plate are restricted in the x-axis translation / rotation and y-axis translation / rotation. The upper end of the transition plate 4 is locked or released by the pin device 2 extending relative to each other or retracting towards each other, which restricts the two degrees of freedom of the transition plate 4 in the z-axis translation / rotation. The installation and replacement are quick and convenient, saving time and effort, which greatly improves the stability and reliability of the quick-change mechanism installation.

[0033] like Figure 9 As shown in the diagram, the dashed lines represent the four-bar linkage formed by parts abcd, utilizing the easily deformable nature of quadrilaterals. During operation, the quick-change mechanism uses the extension and retraction of cylinder 7 to change the geometric angular positions of each link in the four-bar linkage formed by transition plate 4, push frame 3, upper link 5, and lower link 6, thereby raising or lowering the quick-change mechanism. Figure 5 , Figure 6 As shown in the status. It improves the adaptability and operational efficiency of construction machinery, enabling multi-functionality and increasing the utilization rate of construction machinery, thus meeting the operational needs of different scenarios.

[0034] In an illustrative embodiment of the modular working device quick-change mechanism provided by the present invention, the lower front end of the mobile platform 1 is provided with a universal interface, which is a semi-circular groove. The semi-circular boss at the bottom of the transition plate 4 is inserted into the semi-circular groove. By inserting the semi-circular boss / groove, the four degrees of freedom of the transition plate 4 in the x-axis translation / rotation and in the y-axis translation / rotation are restricted, which enables the transition plate 4 to be quickly positioned and installed.

[0035] In an illustrative embodiment of the modular working device quick-change mechanism provided by the present invention, the pin device 2 drives the pins at both ends to extend relative to each other and insert into the first through hole of the first connector 16 on the transition plate 4 to lock the transition plate 4, restricting the transition plate 4 in the two degrees of freedom of translation / rotation on the z-axis, or drives the pins at both ends to retract relative to each other to release from the first through hole on the first connector 16. This can achieve locking of the transition plate 4, improve the stability of installation, and make installation and replacement convenient and quick.

[0036] In an illustrative embodiment of the modular working device quick-change mechanism provided by the present invention, the first connecting member 16 is an arc-shaped connecting member, which is protruding and welded to the center of the connecting groove 15. The arc-shaped connecting member 16 is provided to facilitate the insertion of both ends of the pin device 2 to lock or release the transition plate 4. The second ear seat 17 is arranged parallel to the top of the first connecting member 16. The thickness of the second ear seat 17 is less than the thickness of the first connecting member 16. The second ear seat 17 is convenient to connect with the upper connecting rod 5.

[0037] In an illustrative embodiment of the modular working device quick-change mechanism provided by the present invention, a set of first ear seats 14 perpendicular to the transition plate and symmetrical on the left and right are provided at the lower part in front of the transition plate 4. A square through hole is provided on the transition plate 4 between each set of ear seats 14. The rear end of the pusher 3 is inserted between each set of first ear seats 14 and hinged by the second pin 9. The pusher 3 can rotate around the second pin.

[0038] In an illustrative embodiment of the quick-change mechanism of the modular operating device provided by the present invention, the middle part of the transition plate 4 is provided with a through groove 20 with rounded ends from top to bottom, which can reduce the weight of the quick-change mechanism.

[0039] In an illustrative embodiment of the quick-change mechanism of the modular working device provided by the present invention, the two ends of the upper connecting rod 5 are fork-shaped structures. The upper end of the upper connecting rod is inserted into the outside of the second ear seat 14 and hinged through the fourth pin. The upper connecting rod 5 can rotate around the fourth pin.

[0040] In an illustrative embodiment of the modular operating device quick-change mechanism provided by the present invention, the base of the hydraulic cylinder 7 is installed in the middle position of the mounting groove 18 of the push frame 3 via the first pin 8, and the hydraulic cylinder 7 can rotate around the first pin 8.

[0041] In an illustrative embodiment of the modular operating device quick-change mechanism provided by the present invention, the lower end of the lower connecting rod 6 is located at the front position in the mounting groove 18 of the push frame 3 via the fifth pin 12, and the upper end of the lower connecting rod 6 is a fork-shaped structure, the width of the fork-shaped structure at the upper end of the lower connecting rod is smaller than the width of the fork-shaped structure at the lower end of the upper connecting rod 5.

[0042] In an illustrative embodiment of the quick-change mechanism of the modular working device provided by the present invention, the fork-shaped structure at the upper end of the lower connecting rod 6 is inserted into the fork-shaped structure at the lower end of the upper connecting rod 5 and is hinged to the output end of the hydraulic cylinder 7 through the third pin 10. The geometric angle position of each swinging connecting rod is changed by the extension and retraction of the hydraulic cylinder 7, thereby realizing the lifting or lowering of the quick-change mechanism.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A modular operating device quick-change mechanism, wherein the quick-change mechanism is mounted on a mobile platform, characterized in that, The quick-change mechanism includes: The transition plate is a plate-shaped structure, with its bottom installed at the front end of the moving platform. The lower part of the front of the transition plate is provided with left and right symmetrical first ear seats, and the upper part of the rear of the transition plate is provided with left and right symmetrical and rearward protruding connecting grooves. Each connecting groove is provided with a first connecting member. The two first connecting members are provided with a first through hole on the same axis. The top of the two first connecting members is provided with a second ear seat. The two second ear seats are provided with a second through hole parallel to the axis of the first through hole. A semi-circular boss is provided at the bottom of the transition plate. A pin device, configured as a means of locking or releasing the transition plate, is mounted on the upper front end of the moving platform via a base, with both ends of the pin device connected to a first through hole on a first connector on the transition plate. The push frame is connected to the first ear seat in front of the transition plate. The frame on the left and right sides of the push frame is provided with an upper and lower through mounting groove. A second connecting piece for connecting the working device is provided at the front end of the push frame. The upper connecting rod, the upper end of which is connected to the second lug on the transition plate; The lower connecting rod, the lower end of which is connected to the front part of the mounting slot on the pusher; The hydraulic cylinder is configured as a power actuator for lifting or lowering the working device. It is installed in the mounting slot on the push frame. The output end of the hydraulic cylinder is hinged to the lower end of the upper connecting rod and the upper end of the lower connecting rod. The lifting or lowering of the working device is achieved by changing the geometric angular position of each swinging link in the four-bar linkage formed by the transition plate-push frame-lower connecting rod-upper connecting rod through the extension and retraction of the hydraulic cylinder.

2. The quick-change mechanism of the modular operating device according to claim 1, characterized in that: The lower front end of the mobile platform is provided with a universal interface, which is a semi-circular groove. The semi-circular boss at the bottom of the transition plate is inserted into the semi-circular groove. The insertion of the semi-circular boss / groove restricts the four degrees of freedom of the transition plate in the x-axis translation / rotation and in the y-axis translation / rotation.

3. The quick-change mechanism of the modular operating device according to claim 1, characterized in that: The pin device locks the transition plate by having the pins at both ends extended relative to each other and inserted into the first through hole of the first connector on the transition plate through a built-in hydraulic cylinder, thereby restricting the transition plate's translational and rotational degrees of freedom in the z-axis. Alternatively, the pins at both ends can be retracted relative to each other through a built-in hydraulic cylinder to release themselves from the first through hole on the first connector.

4. The quick-change mechanism of the modular operating device according to claim 3, characterized in that: The first connector is an arc-shaped connector that protrudes and is welded to the center of the connecting groove. The second ear is arranged parallel to the top of the first connector, and the thickness of the second ear is less than the thickness of the first connector.

5. The quick-change mechanism of the modular operating device according to claim 1, characterized in that: The lower part in front of the transition plate is provided with a set of first ear seats that are perpendicular to the transition plate and symmetrical to the left and right. A square through hole is provided on the transition plate between each set of ear seats. The rear end of the pusher is inserted between each set of first ear seats and hinged by a second pin.

6. The quick-change mechanism of the modular operating device according to claim 3 or 5, characterized in that: The transition plate has a through groove with rounded ends in the middle section from top to bottom.

7. The quick-change mechanism of the modular operating device according to claim 1, characterized in that: The upper connecting rod has fork-shaped structures at both ends, with the upper end inserted into the outside of the second ear seat and hinged through the fourth pin.

8. The quick-change mechanism of the modular operating device according to claim 1, characterized in that: The hydraulic cylinder is installed in the middle position of the mounting groove of the push frame body via a first pin.

9. The quick-change mechanism of the modular operating device according to claim 1, characterized in that: The lower end of the lower connecting rod is located at the front of the mounting groove of the push frame body via the fifth pin. The upper end of the lower connecting rod has a fork-shaped structure, and the width of the fork-shaped structure at the upper end of the lower connecting rod is smaller than the width of the fork-shaped structure at the lower end of the upper connecting rod.

10. The quick-change mechanism of the modular operating device according to claim 9, characterized in that: The fork-shaped structure at the upper end of the lower connecting rod is inserted into the fork-shaped structure at the lower end of the upper connecting rod and is hinged to the output end of the hydraulic cylinder via a third pin.

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