A hoist turnover mechanism

Abstract

The present application relates to rotary drilling rig technical field, specifically to a winch turnover mechanism, including support, turnover frame, support and rotating part, one end of turnover frame is rotatably connected with support, and winch is installed on turnover frame; support is rotatably connected with the other end of turnover frame; rotating part is connected with turnover frame and support, and rotating part can drive turnover frame to rotate when rotating, to make winch turn over preset angle.In the scheme, through the setting of rotating part, support and support, when turning over winch, the connection of support and turnover frame is disassembled and separated, rotating part is rotated, rotating part drives turnover frame to turn over, and turnover frame can be turned over to horizontal state, at this time, winch has been turned over to the rear of vehicle body, and at the same time, mast rearward movement action can be safely reversed to horizontal state, avoiding collision with winch, winch is turned over to the rear of vehicle body, and upper space of rotary drilling rig can be released, which is convenient for mast to smoothly reverse, and can perfectly solve the problem of difficult maintenance of mast.

Description

TECHNICAL FIELD

[0001] The present application relates to the rotary drilling rig technical field, specifically relates to a winch turnover mechanism. BACKGROUND

[0002] At present, the winch mechanism of the existing rotary drilling rig is generally assembled on the frame by using pin shaft connection, so that it cannot be turned over or moved. Since the winch mounting mechanism cannot be turned over or moved, if the mast is operated in the backward direction, it will collide with the winch and cause safety accidents, so that the backward function of the mast of the rotary drilling rig is greatly limited.

[0003] In summary, the winch mechanism of the existing rotary drilling rig will collide with the winch when the mast is reversed to the horizontal state, and this structure cannot meet the requirements of the mast reversing, which causes the daily maintenance and care of the mast and all devices thereon to be difficult and cumbersome. SUMMARY

[0004] (1) One of the technical problems solved by the present application is that the winch mechanism of the existing rotary drilling rig is generally assembled on the frame by using pin shaft connection, so that it cannot be turned over or moved, which leads to the problem that the mast is reversed to the horizontal state and collides with the winch.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the present application provides a winch turnover mechanism, comprising:

[0007] a support;

[0008] a turnover frame, one end of the turnover frame is rotatably connected with the support, and a winch is mounted on the turnover frame;

[0009] a support, the other end of the turnover frame is rotatably connected with the support;

[0010] a rotating member, the rotating member is connected with the turnover frame and the support, and when the rotating member rotates, it can drive the turnover frame to rotate, so that the winch is turned over by a predetermined angle.

[0011] According to one embodiment of the present application, the winch turnover mechanism further comprises a driving device, the driving device is arranged on the support, and the output end of the driving device is connected with the rotating member, for driving the rotating member to rotate.

[0012] According to one embodiment of the present application, the driving device is a hydraulic cylinder or a pneumatic cylinder.

[0013] According to one embodiment of the present application, the turnover frame and the support are rotatably connected by a pin shaft, and the pin shaft is detachably arranged on the support.

[0014] According to one embodiment of the present application, the rotating member is an arc-shaped bent plate, one end of the arc-shaped bent plate is connected with the support, the other end of the arc-shaped bent plate is connected with the turnover frame, and the driving device is connected with the middle part of the arc-shaped bent plate.

[0015] According to one embodiment of the present application, the connecting position of the turnover frame and the arc-shaped bent plate is close to the connecting position of the turnover frame and the support.

[0016] According to one embodiment of the present application, the support is provided with a supporting seat, and the driving device is arranged on the supporting seat.

[0017] According to one embodiment of the present application, the turnover frame comprises a vertical segment, a horizontal segment and an inclined segment which are connected in sequence, the free end of the vertical segment is rotationally connected with the support, the winch is arranged on the horizontal segment, the free end of the inclined segment is connected with the support, and the rotating member is connected with the inclined segment.

[0018] According to one embodiment of the present application, the horizontal segment is provided with a mounting position for mounting the winch.

[0019] According to one embodiment of the present application, the preset angle is 180 degrees.

[0020] The winch turnover mechanism provided by the present application has the advantages that: when the winch is turned over, the rotating member is rotated, the rotating member drives the turnover frame to turn over, the turnover frame can be turned over to a horizontal state, at this time, the winch has been turned over to the rear of the vehicle body, and then the mast can be safely turned over to a horizontal state through the mast rear turning action, so as to avoid collision with the winch, the winch is turned over to the rear of the vehicle body, the upper space of the rotary drilling rig is released, the mast can be smoothly turned over, and the problem of difficult maintenance of the mast is perfectly solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The advantages of the above and / or additional aspects of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a partial schematic view of the winch turnover mechanism provided by the present application;

[0023] Figure 2 is a use state structure schematic view of the winch turnover mechanism provided by the present application;

[0024] Figure 3 is a perspective view of the winch turnover mechanism provided by the present application;

[0025] Figure 4is a schematic view of a turning state structure of a winch turning mechanism provided by the present application;

[0026] Figure 5 is another view of a partial schematic view of a winch turning mechanism provided by the present application.

[0027] The reference signs are as follows: 1, support, 2, turning frame, 3, support, 4, rotating part, 5, winch, 6, driving device, 7, support seat, 21, vertical section, 22, horizontal section, 23, inclined section, 8, mast, 9, limiting plate. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] As shown in Figures 1 to 4 , the embodiments of the present application provide a winch turning mechanism, which comprises a support 1, a turning frame 2, a support 3 and a rotating part 4. One end of the turning frame 2 is rotationally connected with the support 1. Specifically, the connection between the support 1 and the turning frame 2 can be disassembled, and a winch 5 is installed on the turning frame 2. The support 3 is rotationally connected with the other end of the turning frame 2. The rotating part 4 is connected with the turning frame 2 and the support 3. When the rotating part 4 rotates, it can drive the turning frame 2 to rotate, so that the turning frame 2 is turned by 180 degrees, so that the winch 5 is turned by a preset angle, which can be 180 degrees.

[0030] The winch 5 turning mechanism provided by the embodiments of the present application is specifically installed on the vehicle body through the support 1 and the support 3. When the winch 5 is turned, the connection between the support 1 and the turning frame 2 is disassembled and separated. The rotating part 4 is rotated, and the rotating part 4 drives the turning frame 2 to turn. The turning frame 2 can be turned to a horizontal state. At this time, the winch 5 has been turned to the rear of the vehicle body. Then, the mast 8 can be safely turned to a horizontal state through a rear turning action, so as to avoid collision with the winch 5. The winch 5 is turned to the rear of the vehicle body, so as to release the upper space of the rotary drilling machine, facilitate the smooth rear turning of the mast 8, and perfectly solve the problem of difficult maintenance of the mast 8.

[0031] According to one embodiment of the present application, as shown in Figure 1 and Figure 2 , Figure 4 , the winch 5 turning mechanism further comprises a driving device 6. The driving device 6 is arranged on the support 1, and the output end of the driving device 6 is connected with the rotating part 4, so as to drive the rotating part 4 to rotate.

[0032] Optionally, the driving device 6 is a hydraulic cylinder or a pneumatic cylinder. Before the back-down action of the mast 8 is performed, the connecting pin between the turnover frame 2 and the support 1 is removed, and the driving device 6, such as a hydraulic cylinder, is started to push the rotating member 4 to slowly turn the winch 5 and the turnover frame 2 by 180°, so that the winch 5 and the turnover frame 2 are turned to a horizontal state, at this time, the winch is turned to the rear of the vehicle body, and meanwhile, the back-down action of the mast 8 can be safely performed to the horizontal state, avoiding collision with the winch.

[0033] According to one embodiment of the present application, as shown in Figure 2 and Figure 4 , the turnover frame 2 and the support 1 are connected by a pin, and the pin is detachably arranged on the support 1. The support 1 and the turnover frame 2 are connected by a pin, which is convenient to disassemble and install, and is convenient to operate and maintain.

[0034] Further, as shown in Figure 5 , a limiting plate 9 is arranged on the support 1, and the limiting plate 9 is below the pin and is used to support the turnover frame 2. Specifically, after the connecting pin between the support 1 and the turnover frame 2 is removed, the limiting plate 9 can support the turnover frame 2, and in addition, when the turnover frame 2 is turned back to the initial position, the limiting plate 9 can also play a mechanical limiting role.

[0035] According to one embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 4 , the rotating member 4 is an arc-shaped bent plate, one end of the arc-shaped bent plate is connected with the support 3, the other end of the arc-shaped bent plate is connected with the turnover frame 2, and the driving device 6 is connected with the middle part of the arc-shaped bent plate.

[0036] Specifically, the connecting position of the turnover frame 2 and the arc-shaped bent plate is close to the connecting position of the turnover frame 2 and the support 3.

[0037] In this embodiment, the arc-shaped bent plate is in a circular arc shape, and the radian of the circular arc is greater than that of a semicircle. Specifically, one end of the arc-shaped bent plate is connected with the support 3, the other end of the arc-shaped bent plate is connected with the turnover frame 2, and the driving device 6 is connected with the middle part of the arc-shaped bent plate. The arc-shaped bent plate is convenient to turn and occupies a small space.

[0038] According to one embodiment of the present application, as shown in Figure 2 and Figure 4 , a support seat 7 is arranged on the support 1, and the driving device 6 is arranged on the support seat 7. The arrangement of the support seat 7 facilitates the installation of the driving device 6, and at the same time, the output end of the driving device 6 can be adjusted to the connecting angle of the rotating member 4, which is convenient to drive the turnover of the rotating member 4.

[0039] According to one embodiment of the present application, as shown in Figure 2 The turnover frame 2 comprises a vertical section 21, a horizontal section 22 and an inclined section 23 connected in sequence, the free end of the vertical section 21 is rotationally connected with the support 1, the winch 5 is arranged on the horizontal section 22, the free end of the inclined section 23 is connected with the support 3, and the rotation member 4 is connected with the inclined section 23.

[0040] Specifically, the horizontal section 22 is provided with a mounting position for mounting the winch 5. The turnover frame 2 has a whole structure of a sickle shape, so that the structure is simple and the turnover of the winch 5 is facilitated.

[0041] According to one embodiment of the present application, optionally, the preset angle is 180 degrees.

[0042] As shown in Figures 1 to 4 The working principle of the embodiment of the present application is as follows:

[0043] Before the rear-down action of the mast 8 is performed, the connecting pin shaft between the turnover frame 2 and the support 1 is removed, and the driving device 6 such as a hydraulic cylinder or a pneumatic cylinder is started to push the arc-shaped bending plate to slowly turn over the winch 5 and the turnover frame 2 by 180 degrees, so that the winch 5 and the turnover frame 2 are turned over to a horizontal state, at this time, the winch has been turned over to the rear of the vehicle body, and meanwhile, the rear-down action of the mast 8 can be safely performed to a horizontal state, avoiding collision with the winch.

[0044] In summary, in the winch turnover mechanism provided by the present application, through the arrangement of the rotation member, the support and the support, when the winch is turned over, the rotation member is rotated to drive the turnover frame to be turned over, and the turnover frame can be turned over to a horizontal state, at this time, the winch has been turned over to the rear of the vehicle body, and then the rear-down action of the mast can be safely performed to a horizontal state, avoiding collision with the winch. The winch is turned over to the rear of the vehicle body, which can release the upper space of the rotary drilling rig, facilitating the smooth rear-down of the mast, perfectly solving the problem of difficult maintenance of the mast, solving the pain point of the current rear-down mast type rotary drilling rig in maintaining the mast, overcoming the shortcomings of frequent disassembly and assembly of the winch, increasing the automatic turnover function of the winch, reducing the labor cost and maintenance cost. The operation is simple, the daily maintenance of the mast becomes simple, and the probability of safety accidents caused by disassembly and assembly of the winch is greatly reduced.

[0045] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms “upper”, “lower” and the like are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that unless specifically stated and limited otherwise, the terms "mounting", "communication", "connection" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly communicated, can also be indirectly communicated through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0047] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hoist turnover mechanism characterized by, The utility model relates to a crane mast overturning mechanism, which comprises: a support; a turnover frame, one end of which is rotatably connected to the support, and a winch is installed on the turnover frame; a support base, the other end of which is rotatably connected to the turnover frame; a rotating member, which is connected to the turnover frame and the support base, and can drive the turnover frame to rotate when the rotating member rotates, so that the winch overturns a preset angle; the turnover frame comprises a vertical section, a horizontal section and an inclined section connected in sequence, the free end of the vertical section is rotatably connected to the support, the winch is arranged on the horizontal section, the free end of the inclined section is connected to the support base, and the rotating member is connected to the inclined section; the turnover frame and the support are rotatably connected through a pin shaft, and the pin shaft is detachably arranged on the support, and before the back-down mast action is performed, the connecting pin shaft between the turnover frame and the support is removed; the rotating member is an arc-shaped bent plate, which is in the shape of a circular arc, and the radius of the circular arc is greater than that of a semicircle, one end of the arc-shaped bent plate is connected to the support base, the other end of the arc-shaped bent plate is connected to the turnover frame, and the winch overturning mechanism further comprises a driving device, which is connected to the middle part of the arc-shaped bent plate; the connection position of the turnover frame and the arc-shaped bent plate is close to the connection position of the turnover frame and the support base.

2. The hoist roll-over mechanism of claim 1, wherein: The driving device is arranged on the support, and the output end of the driving device is connected to the rotating member to drive the rotating member to rotate.

3. The hoist roll-over mechanism of claim 2, wherein: The driving device is a hydraulic cylinder or a pneumatic cylinder.

4. The roll-over mechanism for a hoist as defined in claim 1, wherein: A supporting seat is arranged on the support, and the driving device is arranged on the supporting seat.

5. The roll-over mechanism for a hoist as defined in claim 1, wherein: An installation position for installing the winch is arranged on the horizontal section.

6. The roll-over mechanism for a hoist as defined in claim 1, wherein: The preset angle is 180 degrees.

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