Hydraulic supporting device and equipment

Abstract

The invention discloses a hydraulic supporting device and equipment, and relates to the technical field of supporting structures, the device comprises a driving mechanism and two groups of supporting assemblies with identical structures, and each group of supporting assembly comprises a supporting framework, a limiting mechanism and a supporting mechanism; the supporting mechanism is installed at the bottom of the supporting framework, one part of the structure of the limiting mechanism is installed on the supporting mechanism, the other part of the structure of the limiting mechanism is installed on the supporting framework, and the driving mechanism drives the two supporting assemblies to execute stretching or retracting actions. The equipment comprises a hydraulic supporting device, a telescopic machine and a manned platform, the hydraulic supporting device is connected with the manned platform, and the manned platform is connected with the front end of the telescopic machine. The two supporting assemblies are driven by the driving mechanism to execute stretching or retracting actions, and bending of the multi-section telescopic machine under the dead weight and load can be improved.

Description

Technical Field

[0001] This invention relates to the field of support structure technology, and specifically to a hydraulic support device and equipment. Background Technology

[0002] In recent years, the volume of express delivery business has continued to grow, and the operating environment of telescopic cranes used in the express delivery industry has also become increasingly complex, leading to higher and higher requirements for the stability of telescopic cranes from various express delivery companies. Multi-section telescopic cranes are widely used for loading and unloading goods. When a multi-section telescopic crane is fully extended with a personnel platform, the deflection of the crane will increase under its own weight and heavy load conditions, which will affect its service life and make it impossible to guarantee stable and safe transportation.

[0003] Therefore, it is necessary to design a hydraulic support device and equipment that can solve the existing problems. Summary of the Invention

[0004] This invention addresses the problems existing in the prior art by providing a hydraulic support device and equipment.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A hydraulic support device includes a drive mechanism and two sets of identical support components. Each set of support components includes a support frame, a limiting mechanism, and a support mechanism. The support mechanism is installed at the bottom of the support frame, a portion of the limiting mechanism is installed on the support mechanism, and another portion of the limiting mechanism is installed on the support frame. The drive mechanism drives the two sets of support components to perform extension or retraction actions.

[0006] Based on the above technical solution, the support frame further includes a support rod assembly and a connecting assembly. The support rod assembly includes a first support rod and a second support rod, and the connecting assembly includes a first connector and a second connector. The first support rod, the first connector, the second support rod, the second connector, and the first support rod are connected in sequence.

[0007] Based on the above technical solution, the support frame further includes a hydraulic cylinder, which is located between the first support rod and the second support rod; one end of the hydraulic cylinder is connected to the first connecting member by a pin, and the other end of the hydraulic cylinder is a hydraulic rod, which is connected to the second support rod by a pin.

[0008] Based on the above technical solution, further, the second support rod is provided with a fixed seat, and the end of the hydraulic rod is connected to the fixed seat through a first pin.

[0009] Based on the above technical solution, further, a pin baffle is provided on the outer side of the fixed seat, and a U-shaped limiting hole is opened on the pin baffle, and the first pin located outside the fixed seat is installed in the U-shaped limiting hole.

[0010] Based on the above technical solution, further, a gasket is provided on the inner side of the fixing seat, and the gasket is sleeved on the first pin.

[0011] Based on the above technical solution, a second mounting plate is provided at the position where the second connecting member connects to the second support rod; the limiting mechanism includes a first limiting switch, a second limiting switch, a third limiting switch, and a limiting plate; the second limiting switch is located on the second mounting plate, the first limiting switch is located on the first mounting plate, and the first mounting plate is located below the second limiting switch; the third limiting switch is located on the third mounting plate, and the third mounting plate is connected to the first connecting member; the limiting plate is located between the first limiting switch and the second limiting switch.

[0012] Based on the above technical solution, the support mechanism further includes a load-bearing wheel, a support link, a compression spring, and a support column; the load-bearing wheel is connected to the support link through a second pin; the support column is located inside the support link, and the compression spring is sleeved on the support column.

[0013] Based on the above technical solution, the support mechanism further includes a U-shaped frame, which is connected to the support rod and the load-bearing wheel through a second pin. The bottom of the support column is installed on the U-shaped frame, and the top of the support column passes through the top of the support rod.

[0014] A hydraulic support device includes a hydraulic support unit, a telescopic machine, and a manned platform. The hydraulic support unit is connected to the manned platform, and the manned platform is connected to the front end of the telescopic machine. The extension and retraction of the telescopic machine drives the hydraulic support unit and the manned platform to extend and retract together.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention drives two sets of support components to extend or retract via a drive mechanism, which can improve the bending of multi-section telescopic machines under their own weight and load. Furthermore, all the pins used in the device utilize pin baffles to restrict the degrees of freedom of rotation and axial movement, ensuring system stability. At the same time, the invention rationally arranges multiple limit switches to ensure that the support device can operate to the designated position. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one set of support components in the support device of the present invention; Figure 2 for Figure 1 Partial schematic diagram; Figure 3 This is a schematic diagram of the overall structure of the support device of the present invention; Figure 4 for Figure 3 Partial schematic diagram; Figure 5 for Figure 4 Partial schematic diagram; Reference numerals: 1. Support assembly; 2. Telescopic mechanism; 3. Personnel platform; 4. Drive mechanism; 5. First support rod; 6. Second support rod; 7. First connector; 8. Second connector; 9. Hydraulic cylinder; 10. Fixed seat; 11. Pin baffle; 12. First pin; 13. First limit switch; 14. Second limit switch; 15. Third limit switch; 16. Limit plate; 17. Load-bearing wheel; 18. Support link; 19. Waist-shaped hole; 20. Compression spring; 21. Mounting plate; 22. Mounting column; 23. U-shaped frame; 24. Second pin. Detailed Implementation

[0017] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly, provided that there is no mutual conflict.

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Technical features in the various embodiments of the present invention can be combined accordingly without mutual conflict.

[0019] In the description of this invention, it should be understood that when an element is considered to be "connected" to another element, it can be a direct connection to the other element or an indirect connection, i.e., there is an intermediate element. Conversely, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0020] In the description of this invention, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0021] Example Combination Figure 1 and Figure 2As shown, this embodiment provides a hydraulic support device, which includes a drive mechanism 4 and two sets of identical support components 1, located on the left and right sides of the telescopic machine 2. Each set of support components 1 includes a support frame, a limiting mechanism, and a support mechanism. The support mechanism is installed at the bottom of the support frame, a portion of the limiting mechanism is installed on the support mechanism, and the other portion is installed on the support frame. The drive mechanism 4 is located between the two sets of support components 1, and drives the two sets of support components 1 to perform extension or retraction actions. Preferably, the drive mechanism 4 is a drive motor; specifically, the drive motor is connected to the hydraulic cylinders 9 of the left and right sets of support components 1 through hydraulic pipes. By starting the drive motor, the extension and retraction actions of the hydraulic cylinders 9 are controlled, thereby driving the entire support component 1 to perform extension and retraction actions.

[0022] In this embodiment, the support frame includes a horizontally arranged support rod assembly and a vertically arranged connecting assembly. The support rod assembly includes a first support rod 5 and a second support rod 6. The first support rod 5 and the second support rod 6 have identical structures, equal lengths, and are arranged parallel to each other. That is, the first support rod 5 is positioned above the second support rod 6, or vice versa. The vertical positioning of the first support rod 5 and the second support rod 6 is not specifically limited. In this embodiment, for ease of description, the example of the first support rod 5 being above the second support rod 6 is used to illustrate the positional relationships between other mechanical components.

[0023] Furthermore, the connecting assembly includes a first connector 7 and a second connector 8, wherein the first connector 7 is installed on one side of the first support rod 5 and the second support rod 6, and the second connector 8 is installed on the other side of the first support rod 5 and the second support rod 6; the first support rod 5, the first connector 7, the second support rod 6, the second connector 8, and the first support rod 5 are connected in sequence. It should be noted that, depending on whether the entire hydraulic support device is in an extended or retracted state, and viewed from its side angle, the first support rod 5, the first connector 7, the second support rod 6, the second connector 8, and the first support rod 5 connected in sequence together form a parallelogram shape.

[0024] Furthermore, the support frame also includes a hydraulic cylinder 9, which is located within the parallelogram area, that is, the hydraulic cylinder 9 is located between the first support rod 5 and the second support rod 6; one end of the hydraulic cylinder 9 is connected to the first connecting piece 7 through the first pin 12, and the other end of the hydraulic cylinder 9 is a hydraulic rod, which is connected to the middle position of the second support rod 6 through the first pin 12. Preferably, the second support rod 6 is provided with a fixed seat 10, which is composed of two fixed plates respectively disposed on both sides of the second support rod 6. The end of the hydraulic rod is disposed between the two fixed plates. The first pin 12 passes through the fixed plate, the end of the hydraulic rod and the fixed plate in sequence to connect the hydraulic rod and the fixed seat 10. Each fixed plate is also equipped with a pin baffle 11 on its outer side. Each pin baffle 11 is provided with a U-shaped limiting hole. The first pin 12 located outside the fixed plate is partially confined in the U-shaped limiting hole. This structure restricts the rotation and axial movement freedom of the hydraulic cylinder 9 and reduces the noise of the first pin 12 during rotation. At the same time, a gasket is also installed on the inner side of each fixed plate. Both gaskets are sleeved on the first pin 12, and the end of the hydraulic rod is located between the two gaskets to ensure the stability of the hydraulic cylinder 9 support.

[0025] In this embodiment, the first connector 7 includes a fixing part and a connecting part, which can be connected by welding or by detachment. The fixing part is used to connect with the external manned platform 3. The connecting part has an accommodating space with an open structure. One end of the first support rod 5, one end of the second support rod 6, and one end of the hydraulic cylinder 9 are respectively installed in the accommodating space through a first pin 12. Each first pin 12 has a pin baffle 11 on each of the two outer positions of the connecting part. Each pin baffle 11 has a U-shaped opening. The first pin 12, located on the outer side of the connecting part, is partially confined within the U-shaped limiting hole, which restricts the rotation and axial movement of the entire support frame structure and reduces the noise of the first pin 12 during rotation. Additionally, a washer is installed on the inner side of each connecting part where the first pin 12 is mounted. Both washeres are fitted onto the first pin 12, and the ends of the first support rod 5, the second support rod 6, and the hydraulic cylinder 9 are located between the corresponding two washeres, ensuring the stability of the entire structure.

[0026] Preferably, there is an arc between the position where the first support rod 5 connects to the connecting part and the position where the hydraulic cylinder 9 connects to the connecting part, and there is an arc between the position where the hydraulic cylinder 9 connects to the connecting part and the position where the second support rod 6 connects to the connecting part. The purpose of setting the arc is to prevent friction with the connecting part when it extends or retracts, thereby extending its service life.

[0027] In this embodiment, the second connector 8 is composed of two connecting plates arranged in parallel. One end of the first support rod 5 is located between the two connecting plates and is connected to the upper end of the second connector 8 by the first pin 12. One end of the second support rod 6 is also located between the two connecting plates and is connected to the lower end of the second connector 8 by the first pin 12. Furthermore, a second mounting plate 21 is provided at the position where the second connector 8 connects to the second support rod 6. It should be noted that the second mounting plate 21 is set independently of the second support rod 6 and does not affect the extension or retraction of the second support rod 6.

[0028] In this embodiment, the limiting mechanism includes a first limiting switch, a second limiting switch 14, a third limiting switch, and a limiting plate 16; wherein, the second limiting switch 14 is disposed on the second mounting plate 21, the first limiting switch (not shown in the figure) is disposed on the first mounting plate 13 and the first mounting plate 13 is disposed below the second limiting switch 14, the third limiting switch (not shown in the figure) is disposed on the third mounting plate 15 and the third mounting plate 15 is disposed within the receiving space of the connecting part of the first connecting member 7.

[0029] Specifically, the triggering principle of each limit switch is as follows: When the entire support assembly 1 is in the retracted state, the compression spring 20 is in a pre-tensioned (extended) state, triggering the first limit switch through the limit plate 16 and the third limit switch through the second support rod 6, while the second limit switch 14 is in an untriggered state. Conversely, when the entire support assembly 1 is in the extended state, the limit plate 16 triggers the second limit switch 14, while both the first and third limit switches are in an untriggered state. It should be noted that the positions of each limit switch can be reasonably arranged to ensure the safe and stable operation of the hydraulic front support. The setting positions of each limit switch in this embodiment are the preferred scheme.

[0030] In this embodiment, the support mechanism includes a load-bearing wheel 17, a support rod 18, and a compression spring 20. The load-bearing wheel 17 is connected to the support rod 18 via a second pin 24. Preferably, the support rod 18 has an oblong hole 19, and the second pin 24 can move accordingly within the oblong hole 19. One end of the second pin 34 is provided with a threaded structure, which can achieve a locking fit with the oblong hole. The load-bearing wheel 17 is also equipped with a U-shaped frame 23 for protection. The opening of the U-shaped frame 23 faces the load-bearing wheel 17, and the load-bearing wheel 17 is located in the internal space of the U-shaped frame 23 and connected to the load-bearing wheel 17. The two sides of the U-shaped frame 23 are connected to the support rod 18 through the second pin 24. The non-open end of the U-shaped frame 23 is provided with a mounting post 22. The other end of the mounting post 22 extends away from the load-bearing wheel 17 until it passes through the top of the support rod 18. The part of the mounting post 22 that passes through the top of the support rod 18 is connected to a limiting plate 16. The compression spring 20 is sleeved on the mounting post 22. Furthermore, the first mounting plate is installed on the side of the support link 18 and is located below the limiting plate 16 and also on one side of the compression spring 20, while the second limit switch 14 is located above the limiting plate 16.

[0031] The working principle of this device is as follows: Both sets of support components 1 are in the retracted state, and the corresponding compression springs 20 of each set are in the pre-compressed state, ensuring that the corresponding second pin 24 is located at the bottom of the waist-shaped hole 19 on the support connecting rod 18; The first limit switch is in the triggered state when the compression spring 20 is in the pre-compressed state. When the load-bearing wheel 17 contacts the ground, a certain interaction force will be generated, and the trigger will be disconnected at this time. The second limit switch 14 is triggered when the front support of the telescopic machine 2 reaches the limit load (that is, the second limit switch 14 and the second support rod 6 are in contact), ensuring that the left and right support components 1 are in working condition. The third limit switch is triggered when the front support of the telescopic machine 2 is retracted to the retracted state, ensuring a safe return to the retracted state; The left and right support components 1 are controlled by the drive mechanism 4 through hydraulic pipes. When there is a height difference between the positions of the left and right support components 1, under the action of the compression spring 20, the relatively independent left support component 1 and / or right support component 1 can more easily improve the bending under self-weight and load, and adapt to different working requirements.

[0032] In other embodiments, combined with Figures 3-5 As shown, a hydraulic support device is also provided, which includes a telescopic machine 2, a hydraulic support device, and a manned platform 3. The telescopic machine 2 is provided with a hydraulic support device at its front end, wherein two sets of support components 1 in the hydraulic support device are symmetrically arranged on the left and right sides of the telescopic machine 2; and a mounting frame is provided at the bottom of the front end of the telescopic machine 2, on which a drive motor is provided; at the same time, a manned platform 3 is also installed at the front end of the telescopic machine 2, and each set of support components 1 is installed on the manned platform 3; one end of the hydraulic support device is installed on the manned platform 3.

[0033] It should be noted that, taking the five-section telescopic machine 2 as an example, the installation positions of the five-section telescopic machine 2, the hydraulic support device, and the personnel platform 3 are as follows: Figure 3 As shown, the five-section telescopic machine 2 and the manned platform 3 are existing equipment, and will not be described in detail here.

[0034] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A hydraulic support device, characterized in that, It includes a drive mechanism and two sets of support components with identical structures. Each set of support components includes a support frame, a limiting mechanism, and a support mechanism. The support mechanism is installed at the bottom of the support frame, a part of the limiting mechanism is installed on the support mechanism, another part of the limiting mechanism is installed on the support frame, and the drive mechanism drives the two sets of support components to perform extension or retraction actions.

2. The hydraulic support device according to claim 1, characterized in that, The support frame includes a support rod assembly and a connecting assembly. The support rod assembly includes a first support rod and a second support rod. The connecting assembly includes a first connector and a second connector. The first support rod, the first connector, the second support rod, the second connector, and the first support rod are connected in sequence.

3. A hydraulic support device according to claim 2, characterized in that, The support frame also includes a hydraulic cylinder, which is located between the first support rod and the second support rod; one end of the hydraulic cylinder is connected to the first connecting member by a pin, and the other end of the hydraulic cylinder is a hydraulic rod, which is connected to the second support rod by a pin.

4. A hydraulic support device according to claim 3, characterized in that, The second support rod is provided with a fixed seat, and the end of the hydraulic rod is connected to the fixed seat through a first pin.

5. A hydraulic support device according to claim 4, characterized in that, The outer side of the fixed base is provided with a pin baffle, and a U-shaped limiting hole is opened on the pin baffle. The first pin, which is located outside the fixed base, is installed in the U-shaped limiting hole.

6. A hydraulic support device according to claim 4, characterized in that, The inner side of the fixing seat is provided with a gasket, which is sleeved on the first pin.

7. A hydraulic support device according to claim 2, characterized in that, A second mounting plate is provided at the position where the second connector connects to the second support rod; the limiting mechanism includes a first limit switch, a second limit switch, a third limit switch, and a limiting plate; the second limit switch is located on the second mounting plate, the first limit switch is located on the first mounting plate, and the first mounting plate is located below the second limit switch; the third limit switch is located on the third mounting plate, and the third mounting plate is connected to the first connector; the limiting plate is located between the first limit switch and the second limit switch.

8. A hydraulic support device according to claim 7, characterized in that, The support mechanism includes a load-bearing wheel, a support link, a compression spring, and a support column; the load-bearing wheel is connected to the support link via a second pin; the support column is located inside the support link, and the compression spring is sleeved on the support column.

9. A hydraulic support device according to claim 8, characterized in that, The support mechanism also includes a U-shaped frame, which is connected to the support rod and the load-bearing wheel via a second pin. The bottom of the support column is installed on the U-shaped frame, and the top of the support column passes through the top of the support rod.

10. A hydraulic support device, characterized in that, The hydraulic support device according to any one of claims 1-9 further includes a telescopic machine and a manned platform, wherein the hydraulic support device is connected to the manned platform, and the manned platform is connected to the front end of the telescopic machine; the extension and retraction of the telescopic machine drives the hydraulic support device and the manned platform to extend and retract together.

Images