CN220487504U - Telescopic derrick limit structure of workover rig - Google Patents

Abstract

The utility model belongs to the technical field of derrick limiting, in particular to a telescopic derrick limiting structure of a workover rig, which comprises a lower fixing seat, wherein an upper fixing seat is arranged above the lower fixing seat, mounting grooves are formed in the lower fixing seat and the upper fixing seat, a lower limiting seat is arranged between the lower fixing seat and the upper fixing seat, the top end of the lower limiting seat is fixedly connected with a plurality of sliding rods, and the tops of the sliding rods penetrate through the upper fixing seat; the lower fixing seat, the upper fixing seat, the lower limiting seat, the upper limiting seat and the sliding rod form a component capable of limiting the inclination angle of the inner derrick after moving when the inner derrick is lifted upwards, so that the risk of disconnection is easily generated during operation when the inner derrick is lifted higher, the device can limit the inclination angle of the inner derrick lifting, and simultaneously reinforce the inner derrick of a part of the outer derrick which slides out, and the safety of the workover rig during use is ensured.

Description

Telescopic derrick limit structure of workover rig

Technical Field

The utility model belongs to the technical field of derrick limiting, and particularly relates to a telescopic derrick limiting structure of a workover rig.

Background

The workover rig or the tractor hoist is the most basic and main power source in workover and underground operation construction, and is divided into an inner derrick and an outer derrick; when the inner derrick is lifted, the upper part of the outer derrick is required to be provided with a limiting structure for positioning the inner derrick, the inner derrick is not allowed to fall, meanwhile, the axial pressure born by the inner derrick is transmitted to the outer derrick, lifting and stretching are usually carried out through hydraulic pressure, when the inner derrick stretches to the upper part of the outer derrick, the direct inclination angle of the inner derrick and the outer derrick is limited to a certain extent, generally the inclination angle cannot be higher than 5 degrees, when one end of the existing inner derrick is continuously extended to the upper part of the outer derrick, as the extending end of the inner derrick is not in direct contact with the outer derrick, the inner derrick is limited in the inner wall of the outer derrick through a section of the bottom, and when the extending height of the inner derrick is higher, the supporting force of the outer derrick on the bottom of the inner derrick is larger, and the direct acting force of the outer derrick is larger under the action of the gravity of the inner derrick, so that the inclination angle between the inner derrick and the outer derrick is larger, and the whole derrick structural strength of the inner derrick is damaged, and the whole derrick is damaged, and normal operation is affected.

Disclosure of Invention

The utility model provides a telescopic derrick limit structure of a workover rig, which has the characteristics of solving the problem that when an inner derrick and an outer derrick are integrally inclined, the inclination angle between the inner derrick and the outer derrick is large, and the damage to the structural strength of the integral frame of the inner derrick and the outer derrick is caused, so that the risk of derrick damage is generated, and the normal operation of the derrick is influenced.

The utility model provides the following technical scheme: including lower fixing base, lower fixing base top is equipped with the fixing base, down the fixing base with go up all seting up the mounting groove on the fixing base, down the fixing base with go up and be equipped with down spacing seat between the fixing base, a plurality of slide bar of spacing seat top fixedly connected with down, the slide bar top runs through go up the fixing base, slide bar top fixedly connected with goes up spacing seat, go up spacing seat with lower spacing seat assorted, down spacing seat with go up and set up assorted spacing groove on the spacing seat, one of them spacing inslot wall fixedly connected with a plurality of dog.

The fixing device comprises a lower fixing seat, an upper fixing seat, a lower limiting seat, a lower fixing seat and a lower limiting seat, wherein a plurality of fixing rods are fixedly connected between the lower fixing seat and the upper fixing seat, the fixing rods are located on the outer side of the lower limiting seat, the fixing rods are in sliding connection with the lower limiting seat, a plurality of fixing rods are connected with the lower limiting seat, sliding grooves are formed in the connecting positions of the lower limiting seat, and the outer wall of the lower limiting seat is attached to the sliding grooves.

The sliding chute comprises a plurality of sliding grooves, wherein two positioning grooves are formed in the inner wall of each sliding groove, a limiting block matched with each positioning groove is fixedly connected to the outer wall of each lower limiting seat, and the limiting blocks are in sliding connection with the inner walls of the positioning grooves.

The upper fixing seat is provided with a plurality of sliding holes, the sliding holes are in sliding connection with the outer wall of the sliding rod, and the stop blocks are provided with mounting holes.

The mounting groove inner wall is provided with a plurality of cutting sleeves, two fixing plates are fixedly connected to the cutting sleeve outer wall, the fixing plates are attached to the mounting groove inner wall, corresponding connecting holes are formed in the fixing plates and the mounting groove inner wall, and screws are connected to the connecting holes in a threaded mode.

The beneficial effects of the utility model are as follows: the lower fixing seat, the upper fixing seat, the lower limiting seat, the upper limiting seat and the sliding rod form a component capable of limiting the inclination angle of the inner derrick after moving when the inner derrick is lifted upwards, so that the risk of disconnection is easily generated during operation when the inner derrick is lifted higher, the device can limit the inclination angle of the inner derrick lifting, and simultaneously reinforce the inner derrick of a part of the outer derrick which slides out, and the safety of the workover rig during use is ensured.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram illustrating the movement of the upper limit seat according to the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is an enlarged schematic view of FIG. 2A in accordance with the present utility model;

fig. 5 is an enlarged schematic view of the utility model B of fig. 1.

In the figure: 1. a lower fixing seat; 11. an upper fixing seat; 12. a mounting groove; 13. a fixed rod; 131. a chute; 132. a positioning groove; 2. a lower limit seat; 21. an upper limit seat; 211. a limit groove; 22. a slide bar; 23. a slide hole; 24. a limiting block; 3. a cutting sleeve; 31. a fixing plate; 32. a connection hole; 33. a screw; 4. a stop block; 41. and (5) mounting holes.

Detailed Description

Referring to fig. 1-5, the present utility model provides the following technical solutions: including fixing base 1 down, fixing base 1 top is equipped with fixing base 11 down, has all seted up mounting groove 12 on fixing base 1 down and the last fixing base 11, is equipped with down spacing seat 2 between fixing base 1 down and the last fixing base 11, and a plurality of slide bar 22 of spacing seat 2 top fixed connection down, slide bar 22 top run through fixing base 11, and slide bar 22 top fixedly connected with goes up spacing seat 21, goes up spacing seat 21 and spacing seat 2 assorted down, sets up assorted spacing groove 211 on spacing seat 2 down and the last spacing seat 21, and one of them spacing groove 211 inner wall fixedly connected with a plurality of dog 4.

In this embodiment: the lower fixing seat 1 is a carrier of a bearing device, is erected at the bottom of an outer derrick through the lower fixing seat 1, so that the lower fixing seat 1 is fixed outside the outer derrick, the upper fixing seat 11 is positioned at the top of the outer derrick, the lower fixing seat 1 and the upper fixing seat 11 can be effectively erected at the outer side of the outer derrick through a mounting groove 12 formed in the center of the lower fixing seat 1 and the upper fixing seat 11, a lower limit seat 2 between the lower fixing seat 1 and the upper fixing seat 11 can slide between the lower fixing seat 1 and the upper fixing seat 11, the lower limit seat 2 is fixedly connected with an upper limit seat 21 through a plurality of sliding rods 22 at the top end of the lower limit seat 2, so that the upper limit seat 21 and the lower limit seat 2 can be synchronously adjusted in height, limit grooves 211 formed on the lower limit seat 2 and the upper limit seat 21 correspond to the outer wall of the outer derrick respectively, limit grooves 211 formed on the upper limit seat 21 correspond to the outer wall of the outer derrick, the upper limit seat 21 is attached to the top end of the upper fixing seat 11, the limit groove 211 arranged on the upper limit seat 21 can limit the top of the inner derrick through a plurality of stop blocks 4 fixedly connected with the inner wall of the limit groove 211, the top of the inner derrick is limited through the stop blocks 4 when the outer wall of the top of the inner derrick is positioned in the limit groove 211 arranged on the upper limit seat 21, when the telescopic derrick is used, the upper limit seat 21 can synchronously displace along with the inner derrick when the inner derrick is lifted upwards continuously, the lower limiting seat 2 and the upper limiting seat 21 are connected through the sliding rod 22, so that the lower limiting seat 2 can effectively synchronously move, the lower limiting seat 2 is limited between the lower fixing seat 1 and the upper fixing seat 11, the sliding rod 22 is limited on the upper fixing seat 11, the top of the inner derrick can be effectively limited, when the inner derrick is lifted upwards, the inner derrick can be limited by the lower limiting seat 2 and the upper limiting seat 21 under the action of supporting the bottom of the inner derrick by the top of the outer derrick, the inclination angle of the inner derrick during upward lifting can be effectively limited, the inclination angle between the inner derrick and the outer derrick is prevented from being overlarge, the risk of disconnection is easily generated during operation, and the device can strengthen the partial inner derrick sliding out of the outer derrick when the inclination angle of the inner derrick is limited, so that the safety of a workover rig during use is ensured.

A plurality of fixing rods 13 are fixedly connected between the lower fixing seat 1 and the upper fixing seat 11, the fixing rods 13 are positioned on the outer side of the lower limiting seat 2, the fixing rods 13 are in sliding connection with the lower limiting seat 2, sliding grooves 131 are formed in the connecting positions of the fixing rods 13 and the lower limiting seat 2, and the outer wall of the lower limiting seat 2 is attached to the sliding grooves 131; the fixed connection's between lower fixing base 1 and the last fixing base 11 a plurality of dead lever 13 is used for fixing down interval between fixing base 1 and the last fixing base 11, and dead lever 13 can laminate with four angles of lower spacing seat 2 through spout 131 that its junction offered with lower spacing seat 2 mutually, make it carry out spacing to the displacement about lower spacing seat 2, when guaranteeing lower spacing seat 2 displacement about, can not produce the skew, thereby can guarantee when lower spacing seat 2 and last spacing seat 21 rise, carry out spacing protection to the inclination between interior derrick and the outer derrick.

Two positioning grooves 132 are formed in the inner walls of the sliding grooves 131, a limiting block 24 matched with the positioning grooves 132 is fixedly connected to the outer wall of the lower limiting seat 2, and the limiting block 24 is in sliding connection with the inner walls of the positioning grooves 132; the constant head tank 132 that spout 131 inner wall offered and the stopper 24 phase-match of the both sides fixed connection of limit seat 2 four angles down, stopper 24 is spacing in constant head tank 132, makes limit seat 2 down can be more firm spacing between dead lever 13, and can not influence limit seat 2 down and be in and slide from top to bottom between fixing base 1 and the last fixing base 11.

The upper fixing seat 11 is provided with a plurality of slide holes 23, the slide holes 23 are in sliding connection with the outer wall of the slide rod 22, and the plurality of stop blocks 4 are provided with mounting holes 41; the slide hole 23 formed in the upper fixing seat 11 is used for enabling a plurality of slide bars 22 to effectively penetrate through the upper fixing seat 11, enabling the tops of the slide bars 22 to be effectively located above the upper fixing seat 11, fixing the upper limiting seat 21 above the upper fixing seat 11, enabling the upper limiting seat 21 to effectively and synchronously displace along with displacement of the top of an inner derrick, and the mounting hole 41 formed in the stop block 4 can fix the upper limiting seat to the top of the inner derrick through bolts and the like.

The inner wall of the mounting groove 12 is provided with a plurality of clamping sleeves 3, the outer wall of each clamping sleeve 3 is fixedly connected with two fixing plates 31, the fixing plates 31 are attached to the inner wall of the mounting groove 12, corresponding connecting holes 32 are formed in the fixing plates 31 and the inner wall of the mounting groove 12, and screw rods 33 are connected to the connecting holes 32 in a threaded mode; the cutting ferrule 3 that fixing base 1 inner wall was equipped with down is "L" type form, laminating through fixed plate 31 and mounting groove 12 inner wall, and through connecting hole 32 and screw 33 bolted connection, makes fixed plate 31 can fix in mounting groove 12 inner wall, and fixed plate 31 is in the outside of outer derrick montant, with outer derrick montant assorted, makes it can be effectual with lower fixing base 1 spacing at outer derrick top.

The working principle and the using flow of the utility model are as follows: the lower limiting seat 2 between the lower fixing seat 1 and the upper fixing seat 11 is limited at the bottom of the outer derrick through the lower fixing seat 1 and the upper fixing seat 11, at the moment, the upper limiting seat 21 is connected above the upper fixing seat 11 through the sliding rod 22, and the upper limiting seat 21 is fixed at the top of the inner derrick, so that when the inner derrick is lifted upwards, the upper limiting seat 21 can synchronously displace with the inner derrick, the lower limiting seat 2 moves synchronously, and the top of the outer derrick supports the inner bottom, is limited by the lower limiting seat 2 and the upper limiting seat 21 again, so that the inclination angle when the lower fixing seat 1 and the upper fixing seat 11 are lifted upwards can be effectively limited, the risk of disconnection is avoided when the inner derrick is lifted upwards, and the device can limit the inclination angle when the inner derrick is lifted upwards, simultaneously strengthen part of the inner derrick which slides out of the outer derrick, and ensure the safety when the workover rig is used.

Claims (5)

1. A telescopic derrick limit structure of workover rig, its characterized in that: including fixing base (1) down, fixing base (1) top is equipped with fixing base (11) down, fixing base (1) down with all seted up mounting groove (12) on fixing base (11) down, fixing base (1) down with go up and be equipped with down spacing seat (2) between fixing base (11), spacing seat (2) top fixedly connected with a plurality of slide bar (22) down, slide bar (22) top runs through fixing base (11) down, slide bar (22) top fixedly connected with goes up spacing seat (21), go up spacing seat (21) with spacing seat (2) assorted down, spacing seat (2) down with go up and set up assorted spacing groove (211) on spacing seat (21), one of them spacing groove (211) inner wall fixedly connected with a plurality of dog (4).

2. A workover rig telescopic derrick limit structure as claimed in claim 1, wherein: fixedly connected with a plurality of dead lever (13) between fixing base (1) with go up fixing base (11), dead lever (13) are located down spacing seat (2) outside, dead lever (13) with spacing seat (2) sliding connection down, a plurality of dead lever (13) with spout (131) have all been seted up to spacing seat (2) junction down, spacing seat (2) outer wall down with spout (131) laminating mutually.

3. A workover rig telescopic derrick limit structure as claimed in claim 2, wherein: two positioning grooves (132) are formed in the inner walls of the sliding grooves (131), limiting blocks (24) matched with the positioning grooves (132) are fixedly connected to the outer walls of the lower limiting seats (2), and the limiting blocks (24) are slidably connected with the inner walls of the positioning grooves (132).

4. A workover rig telescopic derrick limit structure as claimed in claim 1, wherein: a plurality of sliding holes (23) are formed in the upper fixing seat (11), the sliding holes (23) are in sliding connection with the outer wall of the sliding rod (22), and a plurality of mounting holes (41) are formed in the stop blocks (4).

5. A workover rig telescopic derrick limit structure as claimed in claim 1, wherein: the mounting groove (12) inner wall is equipped with a plurality of cutting ferrule (3), two fixed plates (31) of cutting ferrule (3) outer wall fixedly connected with, fixed plate (31) with mounting groove (12) inner wall laminating mutually, fixed plate (31) with corresponding connecting hole (32) have been seted up to mounting groove (12) inner wall, threaded connection has screw rod (33) on connecting hole (32).