Hydraulic overturning elevator with buffering function

Abstract

The utility model discloses a hydraulic turnover elevator with a buffering function, which relates to the technical field of workover equipment and comprises a main body assembly and a turnover mechanism, the turnover mechanism comprises a box body, an oil cylinder and a turnover seat, and the turnover seat is connected with the main body assembly through a turnover plate; the turnover mechanism further comprises an oil cylinder rear seat and a damping spring, the oil cylinder rear seat is a rod body and vertically penetrates through the top plate of the box body in a sliding mode, the upper side of the oil cylinder rear seat is sleeved with a vertically-adjustable supporting piece, the lower side of the oil cylinder rear seat is provided with a limiting block, and the lower end of the oil cylinder rear seat is hinged to the tail of the oil cylinder through an upper end pin shaft. The damping spring sleeves the oil cylinder rear seat, and the upper end and the lower end of the damping spring are supported on the supporting piece and the box body top plate respectively; a long hole matched with the upper end pin shaft is formed in the box body, the end portion of the upper end pin shaft is installed in the long hole in a sliding mode, the front end of the oil cylinder is hinged to the inner end of the overturning base, and the bent position of the overturning base is installed on the box body in a rotating mode. And a buffer mechanism is designed in the device, so that a certain buffer effect can be provided for the whole device when collision occurs.

Description

Technical Field

[0001] This utility model relates to the field of well repair equipment technology, specifically to a hydraulic tilting clamp with a buffer function. Background Technology

[0002] Hydraulic tilting clamps are mainly used for tubing tripping in well workover operations. During operation, due to varying levels of operator skill or weather conditions (such as severe swaying of the clamp in strong winds or low visibility in heavy rain or snow), the clamp may fall onto the platform and collide with the wellhead, causing equipment damage, affecting production progress, and resulting in economic losses.

[0003] Therefore, there is an urgent need to develop a hydraulic tilting clamp with a buffer function. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a hydraulic tilting clamp with a buffer function.

[0005] The technical solution of this utility model is: a hydraulic tilting clamp with a buffer function, including a main assembly and a tilting mechanism. The tilting mechanism includes a housing, a hydraulic cylinder and a tilting seat. The tilting seat is connected to the main assembly through a tilting plate.

[0006] The flipping mechanism also includes a hydraulic cylinder seat and a shock-absorbing spring. The hydraulic cylinder seat is a rod that slides vertically through the top plate of the housing. An adjustable support is fitted on its upper side, and a limiting block is provided on its lower side. Its lower end is hinged to the tail of the hydraulic cylinder via an upper pin. The shock-absorbing spring is fitted on the hydraulic cylinder seat, and its upper and lower ends are supported on the support and the top plate of the housing, respectively. The housing has an elongated hole that matches the upper pin. The end of the upper pin is slidably installed in the elongated hole. The front end of the hydraulic cylinder is hinged to the inner end of the flipping seat, and the bent part of the flipping seat is rotatably installed on the housing.

[0007] Preferably, the support is a nut, which is threadedly connected to the rear seat of the hydraulic cylinder.

[0008] Preferably, the flipping mechanism further includes a flipping hinge, the front end of the cylinder is connected to the flipping hinge by a thread, and the flipping hinge is hinged to the inner end of the flipping seat by a hinge pin.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] This device is designed with a buffer mechanism, which can provide a certain buffering effect for the entire device in the event of a collision. This solves the problem of equipment parts being damaged by the impact of the hanging clamp, saves costs, increases the service life of the equipment, and thus reduces the time delay caused by equipment damage and the economic losses caused by downtime. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the flipping mechanism.

[0013] In the diagram: 1. Main assembly, 2. Box body, 201. Long hole, 3. Hydraulic cylinder, 4. Tilting seat, 5. Hydraulic cylinder rear seat, 501. Limiting block, 6. Nut, 7. Shock-absorbing spring, 8. Upper pin, 9. Tilting hinge, 10. Hinge pin. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0015] Reference Figure 1-2 As shown, a hydraulic tilting clamp with a buffer function includes a main body assembly 1 and a tilting mechanism. The tilting mechanism includes a housing 2, a hydraulic cylinder 3 and a tilting seat 4. The tilting seat 4 is connected to the main body assembly 1 through a tilting plate.

[0016] The tilting mechanism also includes a cylinder rear seat 5 and a shock-absorbing spring 7. The cylinder rear seat 5 is a rod that slides vertically through the top plate of the housing 2. An adjustable support is fitted on its upper side, and a limit block 501 is provided on its lower side. Its lower end is hinged to the tail of the cylinder 3 through an upper pin 8. The shock-absorbing spring 7 is fitted on the cylinder rear seat 5, and its upper and lower ends are supported on the support and the top plate of the housing 2, respectively. The housing 2 has an elongated hole 201 that matches the upper pin 8. The end of the upper pin 8 is slidably installed in the elongated hole 201. The front end of the cylinder 3 is hinged to the inner end of the tilting seat 4. The bent part of the tilting seat 4 is rotatably installed on the housing 2.

[0017] More specifically, the tilting mechanism also includes a tilting hinge 9. The front end of the hydraulic cylinder 3 is connected to the tilting hinge 9 by a thread, and the tilting hinge 9 is hinged to the inner end of the tilting seat 4 by a hinge pin 10. The angle of the tilting seat 4 can be controlled by adjusting the thread engagement length.

[0018] During use, adjust the position of the support on the cylinder rear seat 5 to ensure the damping spring 7 has a certain preload, and ensure the upper pin 8 is positioned above the elongated hole 201 of the tilting housing 2. Figure 1 As shown, by adjusting the engagement length of the flip hinge 9 with the front thread of the cylinder 3, the main body assembly 1 is ensured to be in a horizontal state.

[0019] Collisions during the descent of the crane are all in Figure 1When a collision occurs at the left side position (side door position), the right end of the main assembly 1 moves downward. At this time, the flipping seat 4 of the flipping mechanism rotates clockwise, which drives the internal support of the flipping mechanism, the hydraulic cylinder rear seat 5, the upper pin 8, the hydraulic cylinder 3 (the cylinder rod of the hydraulic cylinder 3 always remains in the retracted state), and the flipping hinge 9 to move downward as a whole. The shock-absorbing spring 7 is compressed downward, which provides a certain buffering effect for the entire mechanism.

[0020] This device is designed with a buffer mechanism, which can provide a certain buffering effect for the entire device in the event of a collision. This solves the problem of equipment parts being damaged by the impact of the hanging clamp, saves costs, increases the service life of the equipment, and thus reduces the time delay caused by equipment damage and the economic losses caused by downtime. Example 2

[0021] As a preferred embodiment of this utility model, this embodiment designs the support member based on Embodiment 1, specifically as follows:

[0022] In this embodiment, the support component is nut 6, which is threadedly connected to the cylinder rear seat 5.

[0023] The lower the engagement position of nut 6 on the rear seat 5 of the hydraulic cylinder, the greater the elastic force of the damping spring 7.

[0024] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A hydraulic tilting clamp with a buffer function, comprising a main assembly and a tilting mechanism, the tilting mechanism comprising a housing, a hydraulic cylinder, and a tilting base, the tilting base being connected to the main assembly via a tilting plate; characterized in that: The flipping mechanism also includes a hydraulic cylinder seat and a shock-absorbing spring. The hydraulic cylinder seat is a rod that slides vertically through the top plate of the housing. An adjustable support is fitted on its upper side, and a limiting block is provided on its lower side. Its lower end is hinged to the tail of the hydraulic cylinder via an upper pin. The shock-absorbing spring is fitted on the hydraulic cylinder seat, and its upper and lower ends are supported on the support and the top plate of the housing, respectively. The housing has an elongated hole that matches the upper pin. The end of the upper pin is slidably installed in the elongated hole. The front end of the hydraulic cylinder is hinged to the inner end of the flipping seat, and the bent part of the flipping seat is rotatably installed on the housing.

2. The hydraulic tilting clamp with buffer function according to claim 1, characterized in that: The support component is a nut, which is threadedly connected to the rear seat of the hydraulic cylinder.

3. A hydraulic tilting clamp with a buffer function according to claim 1, characterized in that: The flipping mechanism also includes a flipping hinge, the front end of the cylinder is connected to the flipping hinge by a thread, and the flipping hinge is hinged to the inner end of the flipping seat by a hinge pin.

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