A new type of hydraulic power combination pliers

Abstract

The utility model relates to hydraulic power tool technical field, concretely is a kind of novel hydraulic power combination pliers, including machine body, power claw is equipped on machine body, the outside wall of machine body is equipped with operating mouth, the outer surface of machine body is fixedly connected with protection assembly, protection assembly includes the protection box that is fixedly connected on the outer surface of machine body, the side of protection box near operating mouth is equipped with sliding cavity, sliding cavity is slidably connected with protection plate in, be equipped with inclined plane on the outside wall of protection plate, the inner chamber wall of protection box is equipped with sliding slot, the inner wall of sliding slot is slidably connected with slider one;Beneficial effects are: through the cooperation of worm gear mechanism and lead screw, the position of movable plate can be conveniently adjusted, so as to adjust the pre-tightening force of spring, ensure that two protection plates contact closely, improve the protection effect, through bolt and knob, spring can be conveniently extracted from threaded tube and installation pipe to replace, reduce maintenance cost and time.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic power tool technology, specifically a novel hydraulic power combination pliers. Background Technology

[0002] The hydraulic power combination tong is a tool that integrates hydraulic drive, mechanical clamping and rotation functions. It is mainly used for the operation of attaching and unattaching tubing (such as drill strings and tubing) in drilling and well workover operations. It uses a hydraulic system to transmit power to achieve high torque output and integrates clamping, rotation and safety control functions into one, reducing the number of devices and the complexity of operation.

[0003] The new hydraulic power combination clamp is based on Pascal's principle. It converts pressure into mechanical force through a hydraulic system. The electric telescopic rod serves as the power source, pushing the push plate to move. The oil rod is compressed in the inner cavity of the gear box, generating axial force. The clamping block is fixed by friction between the gear plate and the surface of the target object. The safety valve is linked with the reversing valve to ensure operational safety.

[0004] However, traditional hydraulic power combination clamps usually have a protective device at the operating opening to prevent injury to personnel caused by the operating opening being exposed during operation. The protective device mainly seals the operating opening by pressing the protective plate with a spring. However, traditional protective devices usually cannot adjust the preload of the spring, which causes the spring to deform due to compression after frequent use and reduce its elasticity. As a result, the protective plate cannot tightly seal the operating opening, reducing the protective effect. Utility Model Content

[0005] The purpose of this utility model is to provide a novel hydraulic power combination clamp to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel hydraulic power combination clamp, comprising a body, a power clamping jaw on the body, an operating port on the outer side wall of the body, and a protective component fixedly connected to the outer surface of the body. The protective component includes a protective box fixedly connected to the outer surface of the body, a sliding cavity on the side of the protective box near the operating port, a protective plate slidably connected in the sliding cavity, and an inclined surface on the outer side wall of the protective plate.

[0007] Preferably, the inner wall of the protective box is provided with a sliding groove, and a slider one is slidably connected to the inner wall of the sliding groove. The side of slider one away from the sliding groove is fixedly connected to the outer wall of the protective plate. A slider two is slidably connected to the inner wall of the sliding groove, and an installation plate is fixedly installed on the outer wall of the protective box by bolts.

[0008] Preferably, a movable plate is fixedly connected to the side of the slider away from the groove. A threaded groove is opened through the outer surface of the movable plate. A lead screw is threadedly connected to the inner wall of the threaded groove. A limit block is fixedly connected to the end of the lead screw away from the threaded groove.

[0009] Preferably, a rotating shaft is fixedly connected to the end of the lead screw away from the limit block, and the end of the rotating shaft away from the lead screw is rotatably installed on the inner wall of the protective housing, and a worm gear is fixedly connected to the outer wall of the rotating shaft.

[0010] Preferably, a drive shaft is rotatably connected to the bottom of the inner cavity of the protective housing, a turntable is fixedly connected to the end of the drive shaft away from the protective housing, and a worm is fixedly connected to the outer wall of the drive shaft, with the helical teeth of the worm meshing with the teeth of the worm wheel.

[0011] Preferably, a threaded tube is fixedly connected to the inner wall of the movable plate, a spring is inserted into the inner wall of the threaded tube, a screw is threadedly connected to the inner wall of the threaded tube, a knob is fixedly connected to the end of the screw away from the threaded tube, a protrusion is fixedly connected to the outer wall of the knob, an installation tube is fixedly connected to the side of the protective plate near the threaded tube, and the end of the spring away from the threaded tube is inserted into the installation tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by using the worm gear mechanism and the lead screw in combination, the position of the movable plate can be easily adjusted, thereby adjusting the preload of the spring, ensuring that the two protective plates are in close contact, and improving the protective effect. By disassembling the bolts and knobs, the spring can be easily pulled out from the threaded tube and the mounting tube for replacement, reducing maintenance costs and time.

[0013] This utility model proposes a novel hydraulic power combination clamp. 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 protective component structure of this utility model;

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

[0017] Figure 4 This is a schematic diagram of the spring structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the screw structure of this utility model;

[0019] Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Body; 2. Power gripper; 3. Operating port; 4. Protective components; 401. Protective housing; 402. Turntable; 403. Mounting plate; 404. Bolt; 405. Protective plate; 406. Inclined surface; 407. Movable plate; 408. Lead screw; 409. Limit block; 410. Slider two; 411. Slide groove; 412. Slider one; 413. Threaded tube; 414. Knob; 415. Protrusion; 416. Spring; 417. Mounting tube; 418. Screw; 419. Threaded groove; 420. Drive shaft; 421. Worm; 422. Rotating shaft; 423. Worm wheel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-6 The present invention provides the following two preferred embodiments:

[0023] Example 1: A novel hydraulic power combination clamp includes a body 1, on which a power clamping claw 2 is provided. Both the body 1 and the power clamping claw 2 are existing technologies and will not be described in detail. An operation port 3 is opened on the outer side wall of the body 1. A protective component 4 is fixedly connected to the outer surface of the body 1. The protective component 4 includes a protective housing 401 fixedly connected to the outer surface of the body 1. A sliding cavity is provided on the side of the protective housing 401 near the operation port 3. A protective plate 405 is slidably connected in the sliding cavity. An inclined surface 406 is opened on the outer side wall of the protective plate 405.

[0024] The inner wall of the protective housing 401 is provided with a sliding groove 411. A slider 412 is slidably connected to the inner wall of the sliding groove 411. The side of the slider 412 away from the sliding groove 411 is fixedly connected to the outer wall of the protective plate 405 to guide the sliding of the protective plate 405. A slider 410 is slidably connected to the inner wall of the sliding groove 411. An installation plate 403 is fixedly installed on the outer wall of the protective housing 401 by bolts 404.

[0025] A movable plate 407 is fixedly connected to the side of slider 410 away from the slide groove 411. A threaded groove 419 is opened through the outer surface of the movable plate 407. A lead screw 408 is threadedly connected to the inner wall of the threaded groove 419. A limit block 409 is fixedly connected to the end of the lead screw 408 away from the threaded groove 419.

[0026] When using this device to disassemble and replace oil drill pipes, first align the operating port 3 on the machine body 1 with the drill pipe, then push the machine body 1 towards the drill pipe. Guided by the inclined surface 406 on the protective plate 405, push the two protective plates 405 into the protective box 401 and squeeze the spring 416. When the drill pipe enters the operating port 3, the spring 416 pushes the two protective plates 405 to move in opposite directions, thereby achieving the sealing and protection of the operating port 3.

[0027] Example 2: A rotating shaft 422 is fixedly connected to one end of the lead screw 408 away from the limit block 409. The other end of the rotating shaft 422 away from the lead screw 408 is rotatably mounted on the inner wall of the protective housing 401. A worm gear 423 is fixedly connected to the outer wall of the rotating shaft 422. A drive shaft 420 is rotatably connected to the bottom of the inner cavity of the protective housing 401. A turntable 402 is fixedly connected to one end of the drive shaft 420 away from the protective housing 401. A worm 421 is fixedly connected to the outer wall of the drive shaft 420. The helical teeth of the worm 421 mesh with the teeth of the worm gear 423. The worm 421 and the worm gear 423 have a self-locking characteristic to ensure that the position of the movable plate 407 is fixed and does not shift after adjustment.

[0028] A threaded tube 413 is fixedly connected to the inner wall of the movable plate 407. A spring 416 is inserted into the inner wall of the threaded tube 413. A screw 418 is threadedly connected to the inner wall of the threaded tube 413. A knob 414 is fixedly connected to the end of the screw 418 away from the threaded tube 413. A protrusion 415 is fixedly connected to the outer wall of the knob 414 for easy operation. An installation tube 417 is fixedly connected to the side of the protective plate 405 near the threaded tube 413. The end of the spring 416 away from the threaded tube 413 is inserted into the installation tube 417. By rotating the screw 418, the compression of the spring 416 in the threaded tube 413 and the installation tube 417 can be adjusted, thereby adjusting the preload of the spring 416.

[0029] When adjusting the preload of spring 416, the operator can rotate turntable 402 to drive drive shaft 420 and worm gear 421 to rotate. Worm gear 421 drives worm wheel 423 to rotate, which in turn drives shaft 422 and lead screw 408 to rotate, pulling movable plate 407 to move axially along slide groove 411. This adjusts the distance between threaded tube 413 and mounting tube 417, thereby adjusting the preload of spring 416 and ensuring that the two protective plates 405 are in close contact. When replacing spring 416, the operator can remove mounting plate 403 by removing bolt 404, and after removing screw 418 by turning knob 414, spring 416 can be pulled out from threaded tube 413 and mounting tube 417 for replacement.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel hydraulic power combination clamp, characterized in that: The device includes a body (1), on which a power gripper (2) is provided. An operation port (3) is provided on the outer side wall of the body (1). A protective component (4) is fixedly connected to the outer surface of the body (1). The protective component (4) includes a protective box (401) fixedly connected to the outer surface of the body (1). A sliding cavity is provided on the side of the protective box (401) near the operation port (3). A protective plate (405) is slidably connected in the sliding cavity. An inclined surface (406) is provided on the outer side wall of the protective plate (405).

2. The novel hydraulic power combination clamp according to claim 1, characterized in that: The inner wall of the protective box (401) is provided with a sliding groove (411). A slider (412) is slidably connected to the inner wall of the sliding groove (411). The side of the slider (412) away from the sliding groove (411) is fixedly connected to the outer wall of the protective plate (405). A slider (410) is slidably connected to the inner wall of the sliding groove (411). An installation plate (403) is fixedly installed on the outer wall of the protective box (401) by bolts (404).

3. A novel hydraulic power combination clamp according to claim 2, characterized in that: A movable plate (407) is fixedly connected to the side of the slider two (410) away from the slide groove (411). A threaded groove (419) is opened through the outer surface of the movable plate (407). A lead screw (408) is threadedly connected to the inner wall of the threaded groove (419). A limit block (409) is fixedly connected to the end of the lead screw (408) away from the threaded groove (419).

4. A novel hydraulic power combination clamp according to claim 3, characterized in that: The end of the lead screw (408) away from the limit block (409) is fixedly connected to a rotating shaft (422). The end of the rotating shaft (422) away from the lead screw (408) is rotatably installed on the inner wall of the protective housing (401). A worm gear (423) is fixedly connected to the outer wall of the rotating shaft (422).

5. A novel hydraulic power combination clamp according to claim 1, characterized in that: The bottom of the inner cavity of the protective housing (401) is rotatably connected to a drive shaft (420). A turntable (402) is fixedly connected to one end of the drive shaft (420) away from the protective housing (401). A worm (421) is fixedly connected to the outer wall of the drive shaft (420). The helical teeth of the worm (421) mesh with the teeth of the worm wheel (423).

6. A novel hydraulic power combination clamp according to claim 3, characterized in that: The inner wall of the movable plate (407) is fixedly connected to a threaded tube (413), a spring (416) is inserted into the inner wall of the threaded tube (413), a screw (418) is threadedly connected to the inner wall of the threaded tube (413), a knob (414) is fixedly connected to the end of the screw (418) away from the threaded tube (413), a protrusion (415) is fixedly connected to the outer wall of the knob (414), an installation tube (417) is fixedly connected to the side of the protective plate (405) near the threaded tube (413), and the end of the spring (416) away from the threaded tube (413) is inserted into the installation tube (417).

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