Main winch structure capable of automatically disassembling and assembling shaft

Abstract

The utility model belongs to the field of engineering machinery, and discloses a main winch structure capable of automatically disassembling and assembling a shaft, which comprises a main winch and a main winch platform, a main winch positioning block is arranged at the bottom of the main winch, and a platform positioning block matched with the main winch positioning block is arranged on the upper portion of the main winch platform. The main winch and the main winch platform are connected and fixed through a pin shaft device capable of being automatically disassembled and assembled; the pin shaft device capable of being disassembled and assembled automatically comprises a connecting frame, a pull shaft oil cylinder and a connecting pin shaft. The connecting frame is detachably connected and fixed on the main coil platform; a piston rod of the pull shaft oil cylinder is connected with the connecting pin shaft; the two ends of the connecting frame are fixedly connected with the main coil platform and the pull shaft oil cylinder respectively. And a piston rod of the pull shaft oil cylinder is positioned in the connecting frame. The device is simple in structure, safe, reliable, easy to disassemble and assemble, convenient to maintain and capable of effectively improving assembly efficiency.

Description

Technical Field

[0001] The present invention relates to a main hoist structure with an automatically detachable and installable shaft, belonging to the field of construction machinery. At present, most of the connections of the main hoist adopt bolt connections or pin connections, but they are inconvenient during assembly and disassembly. Based on the pin connection of the hoist, the present invention designs a main hoist structure with an automatically detachable and installable shaft, which is convenient for installation and can meet the requirements of reliability. Background Art

[0002] The description of the background art of the present utility model belongs to the related art related to the present utility model, and is only used to illustrate and facilitate the understanding of the content of the present utility model, and should not be understood as the applicant clearly believing or presuming that the applicant believes it is the prior art on the filing date of the first application of the present utility model.

[0003] For a drill rig based on a Caterpillar chassis, due to space limitations, the main hoist of a large-sized drill rig generally adopts a rear-mounted structure form. In order to reduce the huge bending moment borne by the main beam in the working state, the main hoist of the new drill rig adopts a mid-mounted structure form, and the connection form between the main hoist and the hoist platform adopts a pin connection form. The assembly of the main hoist is completed by manual work in an aerial work mode, which not only increases the number of assembly personnel, but also increases the assembly difficulty and operation risk, resulting in low efficiency and increased costs. Summary of the Utility Model

[0004] The purpose of the embodiment of the present utility model is to provide a main hoist structure with an automatically detachable and installable shaft, which has a simple structure, is safe and reliable, easy to disassemble and assemble, and convenient to maintain, and can effectively improve the assembly efficiency.

[0005] The purpose of the present utility model is realized by the following technical solutions:

[0006] Based on the pin connection of the hoist, the present invention designs a main hoist structure with an automatically detachable and installable shaft, which is convenient for installation and can meet the requirements of reliability.

[0007] A main hoist structure with an automatically detachable and installable shaft includes: a main hoist and a main hoist platform; a main hoist positioning block is provided at the bottom of the main hoist, and a platform positioning block matching with the main hoist positioning block is provided on the upper part of the main hoist platform; the main hoist and the main hoist platform are connected and fixed through an automatically detachable and installable pin device; the automatically detachable and installable pin device includes a connecting frame, a pulling shaft oil cylinder and a connecting pin; the connecting frame is detachably connected and fixed to the main hoist platform; the piston rod of the pulling shaft oil cylinder is connected to the connecting pin; both ends of the connecting frame are respectively connected and fixed to the main hoist platform and the pulling shaft oil cylinder; the piston rod of the pulling shaft oil cylinder is located inside the connecting frame.

[0008] Further, the number of the main hoist positioning blocks is 4, and the number of the pin shaft devices for automatic disassembly and assembly is 4.

[0009] Further, the 4 connecting frames are respectively fixed at four connecting holes of the main hoist platform through bolts.

[0010] Further, the connecting surfaces of the connecting frame, the main hoist platform and the pull shaft oil cylinder are all provided with mating rabbets.

[0011] Further, the piston rod of the pull shaft oil cylinder is connected to the connecting pin shaft by connecting the connecting pin shaft and the piston rod with holes of the pull shaft oil cylinder through a pin shaft and an opening pin.

[0012] Further, in some embodiments of the present invention, a retaining ring and an opening pin are installed at the connection of the connecting pin shaft and the main hoist platform at the end far from the piston rod.

[0013] Further, a control handle is provided on the pull shaft oil cylinder, and the control handle is used to control the installation and disassembly of the connecting pin shaft.

[0014] By means of the above solution, the present invention has at least the following beneficial effects:

[0015] The present invention provides a main hoist structure with an automatically dismountable shaft. First, the upper, lower, left and right directions are limited by the positioning blocks on the main hoist and the hoist platform, and then the control handle that can independently control the pull shaft oil cylinder is operated to complete the individual installation and disassembly of the 4 connecting pin shafts; on the other hand, the disassembly and assembly are easy, the maintenance is convenient, and the assembly efficiency can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for the description of the embodiments will be briefly introduced below:

[0017] Figure 1 It is a schematic structural diagram of a main hoist structure with an automatically dismountable shaft according to the present invention.

[0018] Figure 2 It is a schematic structural diagram of an automatically dismountable pin shaft device in a main hoist structure with an automatically dismountable shaft according to the present invention;

[0019] Figure 3 It is a schematic diagram of different working states of the pull shaft oil cylinder in an automatically dismountable pin shaft device according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further introduced in detail below in conjunction with the embodiments. It should be understood that the embodiments are for those skilled in the art to more easily understand the technical solutions of the present invention and cannot be used as a limitation of the protection scope of the present invention.

[0021] In the following description, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of the present utility model. Different embodiments can be replaced or combined, so the present utility model can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present utility model should also be regarded as including embodiments with one or more of all other possible combinations containing A, B, C, and D, even though such embodiments may not be explicitly described in the following text.

[0022] In the prior art, the installation method of the main hoist requires different personnel to cooperate with each other to install and disassemble the connecting pin shaft, resulting in inconvenient operation and low efficiency. Combining with the attached Figure 1 , this embodiment provides a main hoist structure with an automatically detachable shaft, including: a main hoist 1 and a main hoist platform 2; a main hoist positioning block 3 is provided at the bottom of the main hoist 1, and platform positioning blocks (4, 5) that cooperate with the main hoist positioning block are provided on the upper part of the main hoist platform; the main hoist 1 and the main hoist platform 2 are connected and fixed through an automatically detachable pin shaft device; the automatically detachable pin shaft device includes a connecting frame 6, a pull shaft oil cylinder 8, and a connecting pin shaft 7; the connecting frame 6 is detachably connected and fixed to the main hoist platform 2; the piston rod of the pull shaft oil cylinder 8 is connected to the connecting pin shaft 7; both ends of the connecting frame 6 are connected and fixed to the main hoist platform 2 and the pull shaft oil cylinder 8 respectively; the piston rod of the pull shaft oil cylinder 8 is located inside the connecting frame 6.

[0023] Furthermore, the number of the main hoist positioning blocks is 4, and the number of the automatically detachable pin shaft devices is 4.

[0024] Furthermore, the 4 connecting frames are respectively fixed at four connection holes of the main hoist platform through bolts.

[0025] Before assembling the main hoist 1 and the main hoist platform 2, first fix 4 connecting brackets 6 to the four connecting holes of the main hoist platform 2 with bolts respectively. After the connection between the connecting bracket 6 and the main hoist platform 2 is completed, connect and fix 4 pull rod cylinders 8 to the 4 connecting brackets 6 with bolts respectively. The connecting surfaces of the connecting bracket 6, the main hoist platform 2 and the pull rod cylinder 8 are all provided with mating rabbets, and this rabbet connection can make the connecting surface more firm; connect the connecting shaft 7 to the perforated piston rod of the pull rod cylinder 8 with a pin; when assembling the main hoist 1 onto the main hoist platform 2, the 4 positioning blocks 3 on the main hoist are respectively in upper and lower cooperation with the positioning blocks 4 and 5 on the main hoist platform 2 to realize the upper and lower coaxial positioning of the connecting holes. The positioning block 4 is designed with 1 rib, which cooperates with the bottom of the positioning block 3 on the main hoist 1 for positioning; it is used for the up and down positioning of the main hoist 1; the positioning block 5 is designed with two ribs, which cooperate with the bottom and side of the positioning block 3 on the main hoist 1. The bottom rib is used for the up and down positioning of the main hoist 1, and the side rib is used for the left and right limit of the main hoist 1; ensure that the connecting holes of the main hoist 1 and the connecting holes of the main hoist platform 2 are accurately aligned coaxially. During the assembly process, move the main hoist 1 until the positioning block 3 on it is in full contact with the side of the positioning block 5 on the main hoist platform 2. The coaxial positioning in the left and right directions of the connecting holes is realized by the side cooperation of the positioning block 5. The upper and lower and left and right direction limits at the connecting holes are completed through the positioning block 3, the positioning block 4 and the positioning block 5, ensuring that the shaft hole of the main hoist 1 and the shaft hole of the hoist platform 2 can be coaxially aligned;

[0026] Operating the control handle of the pull rod cylinder 8 can respectively complete the individual installation and disassembly of the 4 connecting pins 7;

[0027] An automatic pin disassembling and assembling device is as Figure 2 shown, including: a connecting pin 21, a connecting bracket 22 and a pull rod cylinder 23; the piston rod of the pull rod cylinder 23 is connected to the connecting pin 21; both ends of the connecting bracket 22 are respectively connected and fixed to the main hoist platform and the pull rod cylinder 23; the piston rod of the pull rod cylinder 23 is located inside the connecting bracket 22. In the said structure, the connection forms of the connecting bracket 24, the pull rod cylinder, etc. are not unique.

[0028] In some embodiments of the present invention, the first end of the connecting bracket 22 is respectively fixed to the connecting hole of the main hoist platform with bolts 26 and gaskets 27.

[0029] In some embodiments of the present invention, the pull rod cylinder 23 is connected and fixed to the second end of the connecting bracket 22 with bolts 210 and gaskets 211.

[0030] In some embodiments of the present invention, the connecting surfaces of the connecting bracket 22, the main hoist platform and the pull rod cylinder 23 are all provided with mating rabbets.

[0031] In some embodiments of the present utility model, the piston rod of the drawbar cylinder 23 is connected to the connecting pin shaft 21 by connecting the connecting pin shaft 21 to the piston rod with a hole of the drawbar cylinder 23 through a pin shaft 24 and a split pin 25.

[0032] In some embodiments of the present utility model, a control handle is provided on the drawbar cylinder 23, and the control handle is used to control the installation and disassembly of the connecting pin shaft 21.

[0033] Here, the control handle refers to the handle 31 of the manual operation valve of the hydraulic system. Here, the cylinder is driven by the hydraulic system, and the manual operation valve is used to control the oil inlet of the rod chamber of the cylinder, so as to control the retraction of the cylinder, drive the connecting pin shaft 1 to be pulled out to achieve the purpose of disassembly; the manual operation valve is used to control the oil inlet of the rodless chamber of the cylinder, so as to control the extension of the cylinder, drive the connecting pin shaft 1 to be inserted to achieve the purpose of installation.

[0034] As Figure 3 shown, there are three working states of the drawbar cylinder 3. From top to bottom, they are a. The manual operation valve is in the middle position, and both the rodless chamber and the rod chamber of the drawbar cylinder 3 are connected to the return oil, and the cylinder does not move. b. The operation handle moves the manual operation valve to the right position, the rodless chamber of the drawbar cylinder 3 is filled with oil, the cylinder extends, and drives the connecting pin shaft 1 to be inserted for installation. C. The operation handle moves the manual operation valve to the left position, the rod chamber of the drawbar cylinder 3 is filled with oil, the cylinder retracts, and drives the connecting pin shaft 1 to be pulled out for disassembly.

[0035] In some embodiments of the present utility model, a retaining ring 28 and a split pin 29 are installed at the connection between the connecting pin shaft 21 and the main winding platform at the end far from the piston rod.

[0036] The connecting frame 22 is fixed to the connection hole of the main winding platform through bolts 26 and gaskets 27 respectively. After the connecting frame 22 is connected to the main winding platform, the drawbar cylinder 23 is connected and fixed to the connecting frame 22 through bolts 210 and gaskets 211 respectively. The connecting surfaces of the connecting frame 22, the main winding platform and the drawbar cylinder 23 are all provided with mating rabbets. This rabbet connection can make the connecting surface more firm; the connecting pin shaft 21 is connected to the piston rod with a hole of the drawbar cylinder 23 through a pin shaft 24 and a split pin 25; the control handle for controlling the drawbar cylinder 23 is manipulated to complete the installation and disassembly of the connecting pin shaft 21; when the connecting pin shaft 21 is installed, the retaining ring 28 and the split pin 29 can be installed to prevent the axial movement of the connecting pin shaft 21. The present utility model provides an automatic pin shaft disassembling and assembling device, which manipulates the control handle of the drawbar cylinder 23 to complete the installation and disassembly of the connecting pin shaft 21; on the other hand, it is easy to disassemble and assemble and convenient to maintain, and can greatly improve the assembly efficiency.

[0037] The above introduction is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A main winch structure capable of automatically disassembling and assembling a shaft, characterized in that: include: Main winch and main winding platform; the main winch is provided with a main winch positioning block at the bottom, and the main winding platform is provided with a platform positioning block that cooperates with the main winch positioning block at the top; the main winch and the main winding platform are connected and fixed by an automatically detachable pin device; the automatically detachable pin device includes a connecting frame, a pull shaft cylinder and a connecting pin; The connecting frame is detachably connected and fixed on the main winding platform; the piston rod of the pull-axis oil cylinder is connected to the connecting pin; the two ends of the connecting frame are respectively connected and fixed to the main winding platform and the pull-axis oil cylinder; the piston rod of the pull-axis oil cylinder is located inside the connecting frame.

2. A main winch structure capable of automatically disassembling a shaft according to claim 1, characterized in that: The number of the main winch positioning blocks is 4, and the number of the automatically disassembled pin shaft devices is 4.

3. A main winch structure capable of automatically disassembling and assembling axles according to claim 2, characterized in that: The four connecting frames are fixed to the four connecting holes of the main winding platform by bolts.

4. A main winch structure capable of automatically disassembling and assembling axles according to claim 3, characterized in that: The connecting surfaces of the connecting frame, the main winding platform and the pull shaft cylinder are all provided with stoppers that fit together.

5. The main winch structure capable of automatically disassembling and assembling axles according to claim 4, characterized in that: The piston rod of the pull-shaft oil cylinder is connected to the connecting pin shaft by connecting the connecting pin shaft and the piston rod with a hole of the pull-shaft oil cylinder through the pin shaft and the cotter pin.

6. A main winch structure capable of automatically disassembling and assembling axles according to claim 5, characterized in that: A retaining ring and a split pin are installed at the connection point between the end of the connecting pin shaft away from the piston rod and the main winding platform.

7. A main winch structure capable of automatically disassembling and assembling axles according to claim 6, characterized in that: The shaft pulling cylinder is provided with a control handle, and the control handle is used to control the installation and removal of the connecting pin shaft.

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