Electric and manual switchable derrick rotation supporting mechanism

Abstract

The utility model discloses a derrick rotation supporting mechanism capable of being switched between an electric mode and a manual mode, and relates to the technical field of derricks. Comprising a fixed derrick section and a rotary derrick section, a rotary support is installed at the top of the fixed derrick section and installed at the top of the fixed derrick section through an installation base, the outer ring of the rotary support is fixedly connected with the installation base, and the inner ring of the rotary support is connected with the bottom end of the rotary derrick section; a driving mechanism which is in transmission with the inner ring of the rotary support through teeth is mounted on the fixed holding pole section, the driving mechanism is mounted on the mounting seat through a mounting fixing plate, a waist-shaped groove is formed in the fixed mounting plate, and the driving mechanism is connected with the waist-shaped groove in the fixed mounting plate through a bolt; by adjusting the connecting position of the driving mechanism and the kidney-shaped groove in the fixed mounting plate, meshing and disengaging of teeth between the driving mechanism and the inner ring of the rotary support are achieved. The driving mechanism is installed through the kidney-shaped groove, the driving mechanism does not need to be dismantled, and the defects in the prior art are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of gin poles, in particular to a gin pole slewing bearing mechanism that can be switched between electric and manual modes. Background Art

[0002] The gin pole slewing bearing mechanism is solely driven by a reduction motor. During use, due to various on-site reasons, such as when the reduction motor fails and cannot operate normally, or there is no power supply on-site, etc., the gin pole cannot work properly. Moreover, many gin pole working areas are located on mountain tops or in the wild, where there are no conditions for maintenance, and maintenance also delays the construction period.

[0003] To solve the above problems, publication number: CN116692704A discloses an electric and manual switchable double jib gin pole slewing bearing mechanism. When the reduction motor cannot operate normally, or there is no power supply on-site, etc., to prevent the gin pole from not working properly and delaying the construction period, the reduction motor mounting plate and the reduction motor thereon can be removed. At the same time, the driving gear fixedly installed on the output shaft of the reduction motor is also removed; this improved structure has obvious defects: 1) The weight of the reduction motor is relatively large, with a single-piece weight reaching about 400 kg, and the installation position is dozens of meters above the ground, making it very difficult to remove, time-consuming and laborious, and delaying the construction period; 2) The reduction motor is arranged outside the rotary articulated connection box body, and the gin pole section belongs to a standard structure. Arranging the reduction motor outside is not convenient for the gin pole lifting mechanism to lift. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a gin pole slewing bearing mechanism that can be switched between electric and manual modes, which can effectively solve the problems in the background art.

[0005] The technical solution to achieve the above purpose is: A gin pole slewing bearing mechanism that can be switched between electric and manual modes, including a fixed gin pole section and a rotary gin pole section. A slewing bearing is installed at the top of the fixed gin pole section. The slewing bearing is installed at the top of the fixed gin pole section through a mounting seat. The outer ring of the slewing bearing is fixedly connected to the mounting seat, and the inner ring is connected to the bottom end of the rotary gin pole section;

[0006] Characterized in that: A gin pole slewing bearing mechanism that can be switched between electric and manual modes, including a fixed gin pole section and a rotary gin pole section. A slewing bearing is installed at the top of the fixed gin pole section. The slewing bearing is installed at the top of the fixed gin pole section through a mounting seat. The outer ring of the slewing bearing is fixedly connected to the mounting seat, and the inner ring is connected to the bottom end of the rotary gin pole section;

[0007] It is characterized in that: a driving mechanism which is in tooth transmission with the inner ring of the slewing bearing is installed on the fixed mast section. The driving mechanism is installed on the mounting seat through a mounting fixed plate. A waist-shaped slot is provided on the fixed mounting plate. The driving mechanism is connected to the waist-shaped slot on the fixed mounting plate through bolts. By adjusting the connection position between the driving mechanism and the waist-shaped slot on the fixed mounting plate, the meshing and disengagement of the teeth between the driving mechanism and the inner ring of the slewing bearing are realized.

[0008] Furthermore, the driving mechanism is arranged inside the slewing bearing.

[0009] Furthermore, an internal gear ring is provided on the inner ring of the slewing bearing. The driving mechanism includes a speed reducer. The speed reducer is connected to the waist-shaped slot on the fixed mounting plate through bolts. The input end of the speed reducer is connected to a driving motor. The output shaft of the speed reducer extends upward through the fixed mounting plate and is connected to a gear for meshing with the internal gear ring. The hole on the fixed mounting plate for passing through the output shaft of the speed reducer is a waist-shaped hole, which is convenient for adjusting the position of the driving mechanism.

[0010] Furthermore, two sets of driving mechanisms are provided, and the two sets of driving mechanisms are symmetrically arranged.

[0011] Furthermore, the mounting seat is arranged as a rectangular structure with the same cross-sectional size as the fixed mast section.

[0012] The beneficial effects of the present utility model are as follows: 1) The driving mechanism of the present utility model is installed through a waist-shaped slot. It is not necessary to remove the driving mechanism. Only by loosening the connection bolts and moving the whole driving structure inward, so that the gear disengages from the meshing, it can be switched to the manual working condition; 2) The driving mechanism of the present utility model is arranged inside the fixed mast section, which does not affect the external shape structure and can be normally lifted and installed through the lifting mechanism; 3) The present utility model is provided with two sets of symmetrically arranged driving mechanisms, which makes the slewing mechanism operate more smoothly and improves safety. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 is a partial schematic diagram of the present utility model;

[0015] Figure 3 is Figure 2 the top view of

[0016] Figure 4 is a structural schematic diagram of the driving mechanism. Detailed Embodiment

[0017] Such as Figures 1-4As shown in the figure, the utility model includes a fixed mast section 1 and a slewing mast section 2. A slewing support 3 is installed at the top of the fixed mast section 1. The four corners of the slewing support 3 are installed at the top of the fixed mast section 1 through mounting seats 4. The outer ring of the slewing support 3 is fixedly connected to the mounting seat 4, and the inner ring is connected to the bottom end of the slewing mast section 2.

[0018] For the convenience of the lifting mechanism to lift and assemble, the mounting seat 4 is set as a rectangular structure with the same cross-sectional size as the fixed mast section 1 and is fixedly installed at the top end of the fixed mast section 1.

[0019] A driving mechanism 5 that is in tooth transmission with the inner ring of the slewing support 3 is installed in the fixed mast section 1. The driving mechanism 5 is installed on the mounting seat 4 through a mounting fixing plate 6. A waist-shaped slot 6.1 is provided on the fixed mounting plate 6. The driving mechanism 5 is connected to the waist-shaped slot 6.1 on the fixed mounting plate 6 through bolts. By adjusting the connection position between the driving mechanism and the waist-shaped slot 6.1 on the fixed mounting plate 6, the meshing and disengagement of the teeth between the driving mechanism 5 and the inner ring of the slewing support 3 are realized.

[0020] The inner ring of the slewing support 3 is provided with an internal gear ring 3.1. The driving mechanism 5 includes a reducer 5.1. The reducer 5.1 is connected to the waist-shaped slot 6.1 on the fixed mounting plate 6 through bolts. The input end of the reducer 5.1 is connected to a driving motor 5.2. The output shaft of the reducer 5.1 extends upward through the fixed mounting plate 6 and is connected to a gear 5.3 for meshing with the internal gear ring. The hole on the fixed mounting plate 6 for passing through the output shaft of the reducer 5.1 is a waist-shaped hole, which is convenient for adjusting the position of the driving mechanism 5.

[0021] To ensure the smooth operation of the slewing mechanism 5, two sets of driving mechanisms 5 are provided, and the two sets of driving mechanisms are symmetrically arranged.

[0022] As a further description of this embodiment, to achieve manual driving, a tail rope hanging point (existing conventional structure) is provided at the end of the mast rocker arm of the slewing support mechanism described in this embodiment. When the teeth between the driving mechanism 5 and the inner ring of the slewing support 3 are disengaged, a tail rope is hung at the tail rope hanging point, and ground personnel manually drive the slewing mast section 2 to rotate by pulling the tail rope.

[0023] During normal use, the driving mechanism 5 drives the inner ring of the slewing support 3 to rotate through the gear 5.3, and drives the slewing mast section 2 to rotate through the inner ring to achieve electric slewing. When the driving mechanism 5 cannot operate normally, or there is no power on site, etc., loosen the connection bolts between the driving mechanism 5 and the fixed mounting plate 6, and move the driving mechanism 5 inward to disengage the teeth between the driving mechanism 5 and the inner ring of the slewing support 3.

Claims

1. A pole-holding slewing support mechanism switchable between electric and manual operation, comprising a fixed pole-holding section and a slewing pole-holding section, wherein a slewing support is installed on the top of the fixed pole-holding section, and the slewing support is installed on the top of the fixed pole-holding section through a mounting seat, wherein the outer ring of the slewing support is fixedly connected to the mounting seat, and the inner ring is connected to the bottom end of the slewing pole-holding section; Features: The fixed boom section is provided with a driving mechanism which is gear-driven with the inner ring of the slewing support. The driving mechanism is installed on the mounting seat by installing a fixing plate. A waist-shaped groove is provided on the fixed mounting plate. The driving mechanism is connected to the waist-shaped groove on the fixed mounting plate by bolts. By adjusting the connection position of the driving mechanism and the waist-shaped groove on the fixed mounting plate, the teeth between the driving mechanism and the inner ring of the slewing support can be engaged or disengaged.

2. The electric and manual switchable pole slewing support mechanism according to claim 1 is characterized in that: The driving mechanism is arranged in the slewing support.

3. The electric and manual switchable pole slewing support mechanism according to claim 1 is characterized in that: The inner ring of the slewing support is provided with an inner gear ring, and the driving mechanism includes a reducer, which is connected to the waist-shaped groove on the fixed mounting plate by bolts, the input end of the reducer is connected to the driving motor, and the output shaft of the reducer extends upward from the fixed mounting plate and is connected to a gear for meshing with the inner gear ring. The hole on the fixed mounting plate for passing the output shaft of the reducer is a waist-shaped hole, which is convenient for position adjustment of the driving mechanism.

4. The electric and manual switchable pole slewing support mechanism according to claim 3 is characterized in that: The driving mechanisms are provided in two groups, and the two groups of driving mechanisms are arranged symmetrically.

5. The electric and manual switchable pole slewing support mechanism according to claim 1 is characterized in that: The mounting seat is configured as a rectangular structure having a cross-sectional size consistent with that of the fixed pole section.

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