Top drive balance hydraulic cylinder dismounting tool

Abstract

The utility model discloses a top drive balance hydraulic cylinder disassembling tool which comprises a pull rod, a sleeve is sleeved on the pull rod in a sliding mode, the top end of the pull rod is provided with a threaded head, and the bottom end of the pull rod is connected with a stopping block used for stopping the sleeve from sliding. Compared with the prior art, the top drive balance hydraulic cylinder disassembling tool has the advantages of reducing manpower burden and being convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder disassembly tooling, in particular to a top drive balance hydraulic cylinder disassembly tooling. Background Art

[0002] The top drive balance cylinder is a device that uses the principle of hydraulic mechanics. Its main function is to balance the load on the top hook during the drilling process so that the system reaches a mechanical balance state. By adjusting the oil pressure, the top drive balance cylinder can dynamically adjust the force in the system to cope with changes in the top hook load, thereby protecting the wellhead and well equipment and improving the safety and efficiency of drilling operations.

[0003] Top drive balance cylinder Figure 1 As shown, the piston 1, piston rod 2, end cover 3 are used in conjunction with O-ring 14, scraper ring 15 and oil seal 16. The bottom end of the piston rod 2 is provided with a threaded blind hole for connection with the instrument. When the top drive balance cylinder is used, disassembly and assembly maintenance is required. When the cylinder is disassembled, the surface of the piston rod 2 is relatively smooth, and it is still inconvenient to disassemble the piston rod when dismantling the instrument. The prior art also uses a pull rod with a threaded head for disassembly, but a large force still needs to be applied during disassembly, which puts a large burden on manpower. Utility Model Content

[0004] 1. Problems to be solved

[0005] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a top drive balance cylinder disassembly tool which reduces the manpower burden and is convenient to use.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a top drive balancing cylinder disassembly tool, including a pull rod, a sleeve is slidably sleeved on the pull rod, a threaded head is provided on the top of the pull rod, and a blocking block is connected to the bottom end of the pull rod for preventing the sleeve from sliding.

[0008] As an improvement, the blocking block is connected in a straight line at the bottom end of the pull rod.

[0009] As an improvement, the total length of the pull rod is 32 inches, the length of the threaded head is 2 inches, the diameter of the pull rod is 3 / 4 inch, the inner diameter of the sleeve is 1 inch, the length of the sleeve is 15 inches, and the outer diameter of the sleeve is 2 inches.

[0010] As an improvement, the nominal diameter of the thread head is 19.05 mm and the pitch is 2.54 mm.

[0011] As an improvement, the outer side wall of the sleeve is also connected with an anti-slip pad.

[0012] (III) Beneficial effects

[0013] The advantage of the utility model compared with the prior art is that in the present application, a blocking block and a sleeve are additionally installed for the pull rod of the prior art. Through the sliding sleeve, after the pull rod is connected to the piston rod, the sliding sleeve can hit the blocking block to disassemble the piston rod, so that the force of the impact on the tooling can bring out the piston rod to complete the disassembly work, thereby reducing the burden of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the top drive balance cylinder.

[0015] Figure 2 It is a structural schematic diagram of the top drive balance cylinder disassembly tooling.

[0016] Figure 3 It is a schematic diagram of the internal structure of the casing.

[0017] As shown in the figure: 1. Pull rod; 2. Sleeve; 3. Threaded head; 4. Stop block; 5. Anti-slip pad. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0019] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0023] Please refer to the attached Figure 1-3 The top drive balance cylinder disassembly tool comprises a pull rod 1, a sleeve 2 is slidably sleeved on the pull rod 1, a threaded head 3 is provided on the top of the pull rod 1, and a blocking block 4 for blocking the sleeve 2 from sliding is connected to the bottom of the pull rod 1.

[0024] In the specific implementation of the utility model, the blocking block 4 is connected to the bottom end of the pull rod 1 in a straight line, which is convenient for taking and using. For the convenience of use, the total length of the pull rod 1 is 32 inches, the length of the thread head 3 is 2 inches, the diameter of the pull rod 1 is 3 / 4 inches, the inner diameter of the sleeve 2 is 1 inch, the length of the sleeve 2 is 15 inches, the outer diameter of the sleeve 2 is 2 inches, the nominal diameter of the thread head 3 is 19.05 mm, the pitch is 2.54 mm and Figure 1 The threaded blind hole specifications of the balancing cylinder piston rod are consistent.

[0025] In order to reduce hand discomfort during use, the outer wall of the sleeve 2 is also connected to an anti-skid pad 5 to reduce the force on the hand during impact.

[0026] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0027] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. Top drive balance cylinder disassembly tool, characterized by: The invention comprises a pull rod (1), a sleeve (2) is slidably sleeved on the pull rod (1), a threaded head (3) is provided at the top end of the pull rod (1), and a blocking block (4) is connected to the bottom end of the pull rod (1) for blocking the sleeve (2) from sliding.

2. The top drive balance cylinder disassembly tool according to claim 1 is characterized in that: The blocking block (4) is connected to the bottom end of the pull rod (1) in a straight line shape.

3. The top drive balance cylinder disassembly tool according to claim 1 is characterized in that: The total length of the pull rod (1) is 32 inches, the length of the threaded head (3) is 2 inches, the diameter of the pull rod (1) is 3 / 4 inch, the inner diameter of the sleeve (2) is 1 inch, the length of the sleeve (2) is 15 inches, and the outer diameter of the sleeve (2) is 2 inches.

4. The top drive balance cylinder disassembly tool according to claim 3 is characterized in that: The nominal diameter of the thread head (3) is 19.05 mm, and the pitch is 2.54 mm.

5. The top drive balance cylinder disassembly tool according to claim 2 is characterized in that: The outer side wall of the sleeve (2) is also connected to an anti-slip pad (5).

Images