A support structure for a mast lifting device

Abstract

The utility model relates to the technical field of derrick hoisting, and disclose a kind of support structure suitable for derrick hoisting device, including base, still including two hydraulic cylinders, top frame, two sliding assemblies, driving assembly, two clamping assemblies, two hydraulic cylinders are all arranged in base, top frame is fixedly installed between the piston end of two hydraulic cylinders, two sliding assemblies are symmetrically arranged in the top of top frame, driving assembly is arranged between the top of two sliding assemblies;The utility model, by being provided with guide rail, so that driving assembly and two clamping assemblies can slide on the top of top frame, and since two second sliders are rotatably connected with two first sliders by bolt, thus the strip plate fixedly installed on two second sliders can also be inclined with the inclination of derrick, so that driving assembly and two clamping assemblies can slide on the top of top frame in the process that derrick is hoisted, and will not rub with derrick, to avoid damage to derrick.

Description

Technical Field

[0001] This utility model relates to the field of derrick lifting technology, and more specifically to a support structure suitable for derrick lifting devices. Background Technology

[0002] In the initial stage of lifting an oil derrick, a hydraulic lifting device is needed to initially lift the derrick to a certain height before a crane performs the subsequent lifting. Currently, most existing lifting devices have support structures that are in direct contact with the derrick. During the lifting process, friction occurs between the derrick and the support structure, which can damage the derrick surface. Therefore, it is urgent to design a support structure suitable for derrick lifting devices to solve the above problems. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a support structure suitable for derrick lifting devices to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a support structure suitable for a derrick lifting device, including a base, two hydraulic cylinders, a top frame, two sliding components, a drive component, and two clamping components. The two hydraulic cylinders are both disposed in the base, the top frame is fixedly installed between the piston ends of the two hydraulic cylinders, the two sliding components are symmetrically disposed on the top of the top frame, the drive component is disposed between the tops of the two sliding components, and the two clamping components are symmetrically slidably installed on the top of the drive component.

[0005] The sliding assembly includes a second slider, both of which are slidably disposed on the top of the top frame. The driving assembly includes a strip plate, which is fixedly mounted between the tops of the two second sliders. The clamping assembly includes an L-shaped clamp, which is slidably mounted on the top of the strip plate.

[0006] Furthermore, the sliding assembly also includes a guide rail, a first slider, a bolt, four wedge blocks, and two bending springs. The two guide rails are fixedly installed on the top of the top frame, the first slider is slidably installed on the guide rails, the bolt is fixedly installed inside the first slider, and the second slider is rotatably installed on the bolt. Two wedge blocks are fixedly installed on the top of the first slider, and the other two wedge blocks are fixedly installed on the bottom of the second slider. The bending springs are fixedly installed between the two wedge blocks.

[0007] Furthermore, the drive assembly also includes a bidirectional screw and a crank handle. A groove is provided on the top of the strip plate. The bidirectional screw is rotatably installed in the groove. One end of the bidirectional screw passes through the strip plate and extends out from one end of the strip plate. The crank handle is fixedly installed on one end of the bidirectional screw. The clamping assembly also includes a sliding sleeve. The sliding sleeve is fixedly installed on the bottom of the L-shaped clamping plate. The sliding sleeve is slidably installed in the groove and is threadedly slidably sleeved on the bidirectional screw.

[0008] Furthermore, the clamping assembly also includes two auxiliary clamping parts, which are respectively fixedly installed at both ends of the L-shaped clamping plate. Each auxiliary clamping part includes a side plate, a round rod, a circular clamping plate, a fixing plate, and a spring. The side plate is fixedly installed at one end of the L-shaped clamping plate, the round rod is slidably installed inside the L-shaped clamping plate, the circular clamping plate is fixedly installed at one end of the round rod, the fixing plate is fixedly installed at the other end of the round rod, and the spring is fixedly installed between the fixing plate and the side plate. A circular groove is provided on the side plate, and the circular clamping plate is adapted to the circular groove.

[0009] Furthermore, the drive assembly also includes a gear, a U-shaped plate, a threaded sleeve, a threaded push rod, a slide rod, a toothed block, and two limiting strips. The gear is fixedly mounted on the bidirectional screw. A slot is provided at the top of the strip plate, and the gear is located in the slot. The U-shaped plate is fixedly mounted on one end of the strip plate. The threaded sleeve is fixedly mounted inside the U-shaped plate. The threaded push rod is slidably mounted inside the threaded sleeve via threads. The slide rod is slidably inserted into the strip plate. The toothed block is fixedly mounted on one end of the slide rod and is adapted to the gear. Both limiting strips are fixedly mounted on the slide rod and are slidably inserted into the strip plate. The slide rod is rotatably connected to the threaded push rod.

[0010] Furthermore, anti-slip strips are provided on one side of both the L-shaped clamp and the circular clamp.

[0011] Furthermore, the clamping assembly also includes four support bars, all of which are fixedly installed at the bottom of the L-shaped clamping plate. The top of the bar plate has four support grooves, and the support bars are slidably installed in the support grooves.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention, through the provision of guide rails, allows the drive assembly and two clamping assemblies to slide on the top of the derrick. Furthermore, since the two second sliders are rotatably connected to the two first sliders by bolts, the strip plates fixedly mounted on the two second sliders can also tilt as the derrick tilts. Therefore, the drive assembly and the two clamping assemblies can slide on the top of the derrick during the lifting process without friction with the derrick, thereby avoiding damage to the derrick. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the sliding component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the drive component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the U-shaped plate structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the clamping component structure of this utility model.

[0019] The attached figures are labeled as follows: 1. Base; 2. Hydraulic cylinder; 3. Top frame; 4. Sliding assembly; 401. Guide rail; 402. First slider; 403. Bolt; 404. Second slider; 405. Wedge block; 406. Spring; 5. Drive assembly; 501. Strip plate; 502. Slide groove; 503. Bidirectional screw; 504. Handle; 505. Hollow slot; 506. Gear; 507. U-shaped plate; 508. Support groove; 509. Threaded sleeve; 510. Threaded push rod; 511. Slide rod; 512. Tooth block; 513. Limiting strip; 6. Clamping assembly; 601. L-shaped clamping plate; 602. Slide sleeve; 603. Side plate; 604. Circular groove; 605. Circular rod; 606. Circular clamping plate; 607. Fixing piece; 608. Spring; 609. Anti-slip strip; 610. Support strip. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Appendix Figure 5 The present invention will be further described below.

[0022] A support structure suitable for a derrick lifting device includes a base 1, two hydraulic cylinders 2, a top frame 3, two sliding components 4, a drive component 5, and two clamping components 6. The two hydraulic cylinders 2 are both disposed inside the base 1. The top frame 3 is fixedly installed between the piston ends of the two hydraulic cylinders 2. The two sliding components 4 are symmetrically disposed on the top of the top frame 3. The drive component 5 is disposed between the tops of the two sliding components 4. The two clamping components 6 are symmetrically slidably installed on the top of the drive component 5.

[0023] The sliding assembly 4 includes a second slider 404, both of which are slidably disposed on the top of the top frame 3. The driving assembly 5 includes a strip plate 501, which is fixedly installed between the tops of the two second sliders 404. The clamping assembly 6 includes an L-shaped clamping plate 601, which is slidably disposed on the top of the strip plate 501.

[0024] Specifically, the sliding assembly 4 also includes a guide rail 401, a first slider 402, a bolt 403, four wedge blocks 405, and two bending springs 406. The two guide rails 401 are fixedly installed on the top of the top frame 3. The first slider 402 is slidably installed on the guide rails 401. The bolt 403 is fixedly installed inside the first slider 402. The second slider 404 is rotatably installed on the bolt 403. Two wedge blocks 405 are fixedly installed on the top of the first slider 402, and the other two wedge blocks 405 are fixedly installed on the bottom of the second slider 404. The bending springs 406 are fixedly installed between the two wedge blocks 405.

[0025] Specifically, the drive assembly 5 also includes a bidirectional screw 503 and a crank 504. The top of the strip plate 501 is provided with a sliding groove 502. The bidirectional screw 503 is rotatably installed in the sliding groove 502. One end of the bidirectional screw 503 passes through the strip plate 501 and extends out from one end of the strip plate 501. The crank 504 is fixedly installed at one end of the bidirectional screw 503. The clamping assembly 6 also includes a sliding sleeve 602. The sliding sleeve 602 is fixedly installed at the bottom of the L-shaped clamping plate 601. The sliding sleeve 602 is slidably installed in the sliding groove 502 and is threadedly slidably sleeved on the bidirectional screw 503.

[0026] Specifically, the clamping assembly 6 also includes two auxiliary clamping parts, which are respectively fixedly installed at both ends of the L-shaped clamping plate 601. Each auxiliary clamping part includes a side plate 603, a round rod 605, a circular clamping plate 606, a fixing piece 607, and a spring 608. The side plate 603 is fixedly installed at one end of the L-shaped clamping plate 601, the round rod 605 is slidably installed inside the L-shaped clamping plate 601, the circular clamping plate 606 is fixedly installed at one end of the round rod 605, the fixing piece 607 is fixedly installed at the other end of the round rod 605, and the spring 608 is fixedly installed between the fixing piece 607 and the side plate 603. A circular groove 604 is provided on the side plate 603, and the circular clamping plate 606 is adapted to the circular groove 604.

[0027] Specifically, the drive assembly 5 also includes a gear 506, a U-shaped plate 507, a threaded sleeve 509, a threaded push rod 510, a slide rod 511, a toothed block 512, and two limiting strips 513. The gear 506 is fixedly mounted on the bidirectional screw 503. A slot 505 is provided at the top of the strip plate 501, and the gear 506 is located in the slot 505. The U-shaped plate 507 is fixedly mounted on one end of the strip plate 501. The threaded sleeve 509 is fixedly mounted inside the U-shaped plate 507. The threaded push rod 510 is slidably mounted inside the threaded sleeve 509 via threads. The slide rod 511 is slidably inserted into the strip plate 501. The toothed block 512 is fixedly mounted on one end of the slide rod 511 and is adapted to the gear 506. Both limiting strips 513 are fixedly mounted on the slide rod 511 and are slidably inserted into the strip plate 501. The slide rod 511 is rotatably connected to the threaded push rod 510.

[0028] In this embodiment, rotating the threaded push rod 510 causes it to slide outward, which drives the slide rod 511 and the toothed block 512 to disengage from the gear 506, thereby unlocking the bidirectional screw 503. When the slide rod 511 slides, the limiting strip 513 can limit it to prevent the slide rod 511 from rotating.

[0029] Specifically, both the L-shaped clamp 601 and the circular clamp 606 have anti-slip strips 609 on one side.

[0030] In this embodiment, the anti-slip strip 609 can increase the friction between the L-shaped clamp 601 and the circular clamp 606 and the derrick when clamping the derrick.

[0031] Specifically, the clamping assembly 6 also includes four support bars 610, all of which are fixedly installed at the bottom of the L-shaped clamping plate 601. The top of the strip plate 501 has four support grooves 508, and the support bars 610 are slidably installed in the support grooves 508.

[0032] In this embodiment, the stability of the L-shaped clamping plate 601 can be improved by setting the support bar 610 and the support groove 508.

[0033] Working principle: During derrick lifting, the base 1 is moved to the bottom of the derrick. Then, the top frame 3 is lifted by the hydraulic cylinder 2, so that the top of the strip plate 501 contacts the derrick. Then, the threaded push rod 510 is rotated to slide outward, causing the slide rod 511 and the toothed block 512 to disengage from the gear 506, thereby unlocking the double-acting screw 503. Then, the crank handle 504 is turned to drive the double-acting screw 503 to rotate, which in turn causes the two sliding sleeves 602 to slide closer to each other in the sliding groove 502, thereby driving the two L-shaped clamps 60 1. The L-shaped clamping plate 601 slides closer to the derrick and clamps it. During the clamping process, the L-shaped clamping plate 601 also causes the circular clamping plate 606 to contact the derrick. When the circular clamping plate 606 contacts the derrick, it pushes the circular rod 605 and the fixing plate 607 to slide backward, thereby stretching the spring 608. When the L-shaped clamping plate 601 is fully in contact with the derrick, the circular clamping plate 606 will enter the circular groove 604. At this time, the circular clamping plate 606 will be tightly in contact with the derrick under the action of the spring 608. Then, the threaded push rod 510 reverses. By re-engaging the toothed block 512 with the gear 506, the bidirectional screw 503 is locked, thereby locking the two clamping components 6. At this time, the two hydraulic cylinders 2 are activated to begin lifting the derrick. In the prior art, the derrick rubs against the support structure of the lifting device because the derrick rotates upward around a fixed center when it is lifted, while the position of the lifting device is fixed. As the lifting progresses, the derrick tilts, and the contact surface between the derrick and the support structure changes, resulting in friction. However, the guide rail 401 allows the drive component 5 and the two clamping components 6 to slide on the top of the top frame 3. Furthermore, since the two second sliders 404 are rotatably connected to the two first sliders 402 by bolts 403, the strip plate 501 fixedly installed on the two second sliders 404 can also tilt with the tilt of the derrick. Therefore, the drive component 5 and the two clamping components 6 can slide on the top of the top frame 3 during the lifting of the derrick without rubbing against it, thus avoiding damage to the derrick.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A support structure suitable for a derrick lifting device, comprising a base (1), characterized in that: It also includes two hydraulic cylinders (2), a top frame (3), two sliding components (4), a drive component (5), and two clamping components (6). The two hydraulic cylinders (2) are both located inside the base (1). The top frame (3) is fixedly installed between the piston ends of the two hydraulic cylinders (2). The two sliding components (4) are symmetrically arranged on the top of the top frame (3). The drive component (5) is located between the tops of the two sliding components (4). The two clamping components (6) are symmetrically slidably installed on the top of the drive component (5). The sliding assembly (4) includes a second slider (404), both of which are slidably disposed on the top of the top frame (3). The driving assembly (5) includes a strip plate (501), which is fixedly installed between the tops of the two second sliders (404). The clamping assembly (6) includes an L-shaped clamp (601), which is slidably disposed on the top of the strip plate (501).

2. The support structure for a derrick lifting device according to claim 1, characterized in that: The sliding assembly (4) also includes a guide rail (401), a first slider (402), a bolt (403), four wedge blocks (405), and two bending springs (406). The two guide rails (401) are fixedly installed on the top of the top frame (3). The first slider (402) is slidably installed on the guide rail (401). The bolt (403) is fixedly installed inside the first slider (402). The second slider (404) is rotatably installed on the bolt (403). Two wedge blocks (405) are fixedly installed on the top of the first slider (402), and the other two wedge blocks (405) are fixedly installed on the bottom of the second slider (404). The bending springs (406) are fixedly installed between the two wedge blocks (405).

3. A support structure suitable for a derrick lifting device according to claim 1, characterized in that: The drive assembly (5) also includes a bidirectional screw (503) and a crank (504). A groove (502) is provided on the top of the strip plate (501). The bidirectional screw (503) is rotatably installed in the groove (502). One end of the bidirectional screw (503) passes through the strip plate (501) and extends out from one end of the strip plate (501). The crank (504) is fixedly installed on one end of the bidirectional screw (503). The clamping assembly (6) also includes a sliding sleeve (602). The sliding sleeve (602) is fixedly installed on the bottom of the L-shaped clamping plate (601). The sliding sleeve (602) is slidably installed in the groove (502), and the sliding sleeve (602) is slidably sleeved on the bidirectional screw (503) by a thread.

4. A support structure suitable for a derrick lifting device according to claim 1, characterized in that: The clamping assembly (6) also includes two auxiliary clamping parts, which are respectively fixedly installed at both ends of the L-shaped clamping plate (601). The auxiliary clamping parts include a side plate (603), a round rod (605), a circular clamping plate (606), a fixing piece (607), and a spring (608). The side plate (603) is fixedly installed at one end of the L-shaped clamping plate (601), the round rod (605) is slidably installed in the L-shaped clamping plate (601), the circular clamping plate (606) is fixedly installed at one end of the round rod (605), the fixing piece (607) is fixedly installed at the other end of the round rod (605), and the spring (608) is fixedly installed between the fixing piece (607) and the side plate (603). A circular groove (604) is provided on the side plate (603), and the circular clamping plate (606) is adapted to the circular groove (604).

5. A support structure suitable for a derrick lifting device according to claim 3, characterized in that: The drive assembly (5) also includes a gear (506), a U-shaped plate (507), a threaded sleeve (509), a threaded push rod (510), a slide rod (511), a toothed block (512), and two limiting strips (513). The gear (506) is fixedly installed on the bidirectional screw (503). A slot (505) is opened at the top of the strip plate (501), and the gear (506) is located in the slot (505). The U-shaped plate (507) is fixedly installed at one end of the strip plate (501), and the threaded sleeve (509) is fixedly installed on the top. The threaded push rod (510) is installed inside the U-shaped plate (507) and is slidably installed inside the threaded sleeve (509). The slide rod (511) is slidably inserted into the strip plate (501). The toothed block (512) is fixedly installed at one end of the slide rod (511). The toothed block (512) is adapted to the gear (506). Two limit strips (513) are fixedly installed on the slide rod (511). The limit strips (513) are slidably inserted into the strip plate (501). The slide rod (511) is rotatably connected to the threaded push rod (510).

6. A support structure suitable for a derrick lifting device according to claim 4, characterized in that: Both the L-shaped clamp (601) and the circular clamp (606) are provided with anti-slip strips (609) on one side.

7. A support structure suitable for a derrick lifting device according to claim 1, characterized in that: The clamping assembly (6) also includes four support bars (610), all of which are fixedly installed at the bottom of the L-shaped clamping plate (601). The top of the strip plate (501) is provided with four support grooves (508), and the support bars (610) are slidably installed in the support grooves (508).

Images