Automatic pin shaft dismounting and mounting device

Abstract

The utility model relates to the field of engineering machinery, in particular to an automatic pin shaft dismounting and mounting device. Comprising a connecting pin shaft, a connecting frame and a pull shaft oil cylinder, 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. At present, bolt connection or pin shaft connection is mostly adopted in main winch connection, but disassembly is inconvenient during transportation, and the automatic pin shaft disassembly and assembly device is designed on the basis of winch pin shaft connection, so that installation is convenient, and the requirement for reliability can be met.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery, specifically to an automatic pin-shaft disassembly and assembly device. Currently, most main winch connections use bolt or pin connections, but disassembly is inconvenient during transportation. This invention designs an automatic pin-shaft disassembly and assembly device based on the winch pin connection, thus facilitating installation while meeting reliability requirements. Background Technology

[0002] The description of the background technology in this utility model pertains to related technologies and is used merely for illustration and to facilitate understanding of the content of this utility model. It should not be construed as the applicant explicitly believing or presuming that the applicant believes it to be prior art on the filing date of the first application.

[0003] The new drilling rig's main winch adopts a centrally located structure, and the connection between the main winch and the winch platform is a pin-shaft connection. Assembly of the main winch requires manual work at height. Traditional disassembly and assembly methods not only require personnel to hoist the winch and pins, but also require personnel to continuously hammer the pins for installation or disassembly. This method not only increases the number of assembly personnel, but also increases the difficulty and danger of assembly. Disassembly and installation require significant labor intensity and are relatively inefficient. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide an automatic pin assembly and disassembly device that is simple in structure, convenient to operate, saves time and effort, is easy to assemble and disassemble, and can effectively improve assembly efficiency.

[0005] An automatic pin assembly / disassembly device includes: a connecting pin, a connecting frame, and a pull-shaft cylinder; the piston rod of the pull-shaft cylinder is connected to the connecting pin; both ends of the connecting frame are respectively connected and fixed to a main winding platform and the pull-shaft cylinder; the piston rod of the pull-shaft cylinder is located inside the connecting frame. In this structure, the connection form of the connecting frame and the pull-shaft cylinder, etc., are not unique.

[0006] In some embodiments of this utility model, the first end of the connecting frame is fixed to the connecting hole of the main roll platform by a first bolt and a first washer.

[0007] In some embodiments of this utility model, the pull shaft cylinder is connected and fixed to the second end of the connecting frame by the second bolt and the second washer.

[0008] In some embodiments of this utility model, the connecting surfaces of the connecting frame, the main winding platform, and the pull shaft cylinder are all equipped with mutually cooperating stops.

[0009] In some embodiments of this utility model, the piston rod of the pull shaft cylinder is connected to the connecting pin by means of a pin and a first cotter pin, which connect the connecting pin to the piston rod with holes in the pull shaft cylinder.

[0010] In some embodiments of this utility model, the pull shaft cylinder is provided with a control handle, which is used to control the installation and disassembly of the connecting pin.

[0011] In some embodiments of this utility model, a retaining ring and a second cotter pin are installed at the connection point between the connecting pin and the main winding platform at the end away from the piston rod.

[0012] By employing the above-described solution, this utility model possesses at least the following beneficial effects:

[0013] This utility model provides an automatic pin assembly and disassembly device, in which the control handle of the pull shaft cylinder is operated to complete the installation and disassembly of the connecting pin; on the other hand, it is easy to assemble and disassemble, convenient to maintain, and can greatly improve assembly efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0015] Figure 1 This is a schematic diagram of the structure of an automatic pin assembly and disassembly device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the disassembly tooling in the prior art of this utility model;

[0017] Figure 3 This is a schematic diagram of the different working states of the hydraulic cylinder of the automatic disassembly and assembly pin device of this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the embodiments are for the purpose of making it easier for those skilled in the art to understand the technical solution of the present invention, and should not be regarded as limiting the scope of protection of the present invention.

[0019] In the following description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of the present invention, which can be substituted or combined with each other. Therefore, the present invention 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 invention should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.

[0020] In existing technologies, the disassembly and assembly of pins generally employ corresponding disassembly tools, such as... Figure 2 As shown:

[0021] Working principle: When the shaft needs to be pulled out, first connect the pull rod 24 to the hinge shaft 22 via threads, place the puller jacks 23 on both sides of the hinge shaft, press them down with the plate 25, and tighten them with the nuts 26. At the same time, supply oil to the large chambers of the two puller jacks, so that the two piston rods extend outward synchronously and push against the plate 25 to pull out the hinge shaft (the bracket 21 in the figure is for support).

[0022] This invention is based on the winch pin connection and designs an automatic pin assembly and disassembly device, which is convenient to install and can meet the requirements of reliability.

[0023] This utility model provides an automatic pin assembly / disassembly device, such as... Figure 2 As shown, the structure includes: a connecting pin 1, a connecting frame 2, and a pull-shaft cylinder 3; the piston rod of the pull-shaft cylinder 3 is connected to the connecting pin 1; both ends of the connecting frame 2 are respectively connected and fixed to the main winding platform and the pull-shaft cylinder 3; the piston rod of the pull-shaft cylinder 3 is located inside the connecting frame 2. In this structure, the structural forms of the connecting frame 4 and the pull-shaft cylinder connection are not unique.

[0024] In some embodiments of this utility model, the first end of the connecting frame 2 is fixed to the connecting hole of the main roll platform by the first bolt 6 and the first washer 7 respectively.

[0025] In some embodiments of this utility model, the pull shaft cylinder 3 is connected and fixed to the second end of the connecting frame 2 by the second bolt 10 and the second washer 11.

[0026] In some embodiments of this utility model, the connecting surfaces of the connecting frame 2, the main winding platform, and the pull shaft cylinder 3 are all equipped with mutually cooperating stop edges.

[0027] In some embodiments of this utility model, the piston rod of the pull shaft cylinder 3 is connected to the connecting pin 1 by means of a pin 4 and a first cotter pin 5, which connect the connecting pin 1 to the piston rod with holes in the pull shaft cylinder 3.

[0028] In some embodiments of this utility model, the pull shaft cylinder 3 is provided with a control handle, which is used to control the installation and disassembly of the connecting pin 1.

[0029] The control handle here refers to the handle 31 of the hand-operated valve of the hydraulic system. The cylinder here is driven by the hydraulic system. The hand-operated valve controls the oil intake of the rod chamber of the cylinder, thereby controlling the cylinder to retract and pull out the connecting pin 1 to achieve the purpose of disassembly. The hand-operated valve controls the oil intake of the rodless chamber of the cylinder, thereby controlling the cylinder to extend and pull in the connecting pin 1 to achieve the purpose of installation.

[0030] like Figure 3 The diagram shows the three working states of the pull shaft cylinder 3, from top to bottom: a) The hand-operated valve is in the neutral position, both the rodless and rod chambers of the pull shaft cylinder 3 are connected to the return oil, and the cylinder does not move. b) The operating handle moves the hand-operated valve to the right position, oil enters the rodless chamber of the pull shaft cylinder 3, the cylinder extends, and drives the connecting pin 1 to be inserted for installation. c) The operating handle moves the hand-operated valve to the left position, oil enters the rod chamber of the pull shaft cylinder 3, the cylinder retracts, and drives the connecting pin 1 to be pulled out for disassembly.

[0031] In some embodiments of this utility model, a retaining ring 8 and a second cotter pin 9 are installed at the connection point between the connecting pin 1 and the main winding platform at the end away from the piston rod.

[0032] The connecting frame 2 is fixed to the connecting hole of the main winding platform by the first bolt 6 and the first washer 7. After the connecting frame 2 is connected to the main winding platform, the pull shaft cylinder 3 is connected and fixed to the connecting frame 2 by the second bolt 10 and the second washer 11. The connecting surfaces of the connecting frame 2, the main winding platform and the pull shaft cylinder 3 are all equipped with mutually mating stop surfaces, which makes the connection surfaces more secure. The connecting pin 1 is connected to the piston rod with holes in the pull shaft cylinder 3 by the pin 4 and the first cotter pin 5. The control handle of the pull shaft cylinder 3 is operated to complete the installation and removal of the connecting pin 1. After the connecting pin 1 is installed, the retaining ring 8 and the second cotter pin 9 can be installed to prevent the axial movement of the connecting pin 1. This utility model provides an automatic pin assembly and disassembly device, which allows the installation and disassembly of the connecting pin 1 to be completed by operating the control handle of the pull shaft cylinder 3. On the other hand, it is easy to assemble and disassemble, convenient to maintain, and can greatly improve assembly efficiency.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic pin assembly / disassembly device, characterized in that, include: Connecting pin (1), connecting frame (2) and pull shaft cylinder (3); the piston rod of the pull shaft cylinder (3) is connected to the connecting pin (1); the two ends of the connecting frame (2) are respectively connected and fixed to the main winding platform and the pull shaft cylinder (3); the piston rod of the pull shaft cylinder (3) is located inside the connecting frame (2).

2. The automatic pin assembly / disassembly device according to claim 1, characterized in that, The first end of the connecting frame (2) is fixed to the connecting hole of the main roll platform by the first bolt (6) and the first washer (7).

3. The automatic pin assembly / disassembly device according to claim 2, characterized in that, The pull shaft cylinder (3) is connected and fixed to the second end of the connecting frame (2) by the second bolt (10) and the second washer (11).

4. The automatic pin assembly / disassembly device according to claim 3, characterized in that, The connecting surfaces of the connecting frame (2), the main winding platform and the pull shaft cylinder (3) all have mutually matching stops.

5. The automatic pin assembly / disassembly device according to claim 4, characterized in that, The piston rod of the pull shaft cylinder (3) is connected to the connecting pin (1) by means of a pin (4) and a first cotter pin (5) to connect the connecting pin (1) to the piston rod of the pull shaft cylinder (3) with a hole.

6. The automatic pin assembly / disassembly device according to claim 5, characterized in that, The pull shaft cylinder (3) is equipped with a control handle, which is used to control the installation and disassembly of the connecting pin (1).

7. The automatic pin assembly / disassembly device according to claim 6, characterized in that, A retaining ring (8) and a second cotter pin (9) are installed at the connection point between the connecting pin (1) and the main winding platform at the end away from the piston rod.

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