Disassembling and assembling tool for crosshead of BOG booster compressor

Abstract

The utility model discloses a BOG booster compressor crosshead dismounting tool which comprises a connector, a pry bar and a pry handle, the side wall of the connector is provided with external threads matched with threads of a screw hole in the middle of a crosshead, one end of the pry bar is coaxially connected with the middle of one end of the connector, and the other end of the pry bar is coaxially connected with the pry handle. A through prying hole is formed in the end, away from the connecting head, of the prying rod in the radial direction, the prying handle is in a rod shape and penetrates through the prying hole to form a T shape with the prying rod, the structure is simple, the connecting head can be in threaded connection with a corresponding screw hole in the crosshead, and then the crosshead is finely adjusted through combination of the prying rod and the prying handle.

Description

Technical Field

[0001] The utility model belongs to the technical field of BOG booster compressors, and in particular relates to a crosshead disassembly and assembly tool for a BOG booster compressor. Background Art

[0002] LNG receiving stations require BOG booster compressors, and the crossheads of each level of the BOG booster compressor are arranged between the upper and lower slides in the middle body. Due to limited space and blocked vision, when inspecting the wear of the connecting rod big head bearing, crosshead pin bushing, crosshead slide and small head cover, it is necessary to control the position and state of the crosshead in the middle body slide to cooperate with the disassembly operation. When controlling the crosshead, it is necessary to insert crowbars or wooden squares and other tools from the windows on both sides of the middle body cover to pry the crosshead to slide or jam it. It is impossible to fine-tune the crosshead using crowbars and other tools. Although corresponding protective measures have been taken at the contact parts between crowbars and other tools and the crosshead, there are still bumps, scratches and other damages to the crosshead slide and track. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a BOG booster compressor crosshead disassembly and assembly tool which has a simple structure and is easy to use.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a BOG booster compressor crosshead disassembly and assembly tool, comprising a connector, a pry bar and a pry handle, the side wall of the connector is provided with an external thread that matches the thread of the screw hole in the middle of the crosshead, one end of the pry bar is coaxially connected to the middle of one end of the connector, and the end of the pry bar away from the connector is radially provided with a penetrating pry hole, and the pry handle is rod-shaped, which passes through the pry hole to form a "T" shape with the pry bar.

[0005] The beneficial effect of the above technical solution is that: it has a simple structure, and the connecting head can be threadedly connected to the corresponding screw hole on the crosshead, and then the crosshead can be fine-tuned by combining the pry bar and the pry handle.

[0006] In the above technical solution, a plurality of reinforcing plates are evenly spaced along the circumferential direction at the connection between the pry bar and the connecting head.

[0007] The beneficial effect of the above technical solution is that the corresponding end of the pry bar is reinforcedly connected to the connecting head.

[0008] In the above technical solution, one end of the connector close to the pry bar is provided with a skirt protruding outwards.

[0009] The beneficial effect of the above technical solution is that: in this way, the maximum depth of the connection head and the cross head thread connection is that the skirt and the cross head are at odds.

[0010] The pry bar described in the above technical solution is a splicing bar.

[0011] The beneficial effect of the above technical solution is that it is easy to use and occupies little space when stored.

[0012] The pry bar in the above technical solution includes a first rod section and a second rod section, one end of the first rod section is detachably connected to one end of the second rod section, and the other end of the first rod section is coaxially connected to the connecting head, and the other end of the second rod section is provided with the pry hole.

[0013] The beneficial effect of the above technical solution is that its structure is simple, so after the connector and the crosshead are threaded into place, the second rod section can be connected to the first rod section, thus avoiding the difficulty of assembling the BOG booster compressor crosshead disassembly tool with the crosshead.

[0014] In the above technical solution, the first rod section and the second rod section are both tubular rods.

[0015] The beneficial effect of the above technical solution is that it has a simple structure.

[0016] In the above technical solution, a first pin hole is radially arranged through one end of the first rod section close to the second rod section, and a second pin hole is radially arranged through one end of the second rod section close to the first rod section. The ends of the first rod section and the second rod section close to each other are plugged into each other, and the first pin hole and the second pin hole are aligned and a pin connection piece is inserted to detachably connect the first rod section and the second rod section.

[0017] The beneficial effect of the above technical solution is that it has a simple structure.

[0018] The pin connector in the above technical solution is a steel ball pin.

[0019] The beneficial effects of the above technical solution are: its structure is simple and easy to use.

[0020] In the above technical solution, the inner hole of the first rod section near one end of the second rod section is a regular polygon, the outer wall of the second rod section near one end of the first rod section matches the inner hole of the corresponding end of the first rod section, and the second rod section and the first rod section are plugged into each other at their ends close to each other.

[0021] The beneficial effect of the above technical solution is that it has a simple structure.

[0022] In the above technical solution, two pry holes are provided, and the two pry holes are vertically cross-distributed, and the pry handle selectively passes through any one of the pry holes.

[0023] The beneficial effect of the above technical solution is that the pry handle can be flexibly used to perform operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a vertical view of the crosshead disassembly and assembly tool for the BOG booster compressor described in Example 1 of the utility model;

[0025] Figure 2 It is a cross-sectional view of the pry bar in Embodiment 1 of the utility model provided with a pry hole end;

[0026] Figure 3 A cross-sectional view of the first rod section and the second rod section in Example 1 of the utility model;

[0027] Figure 4 It is a side view of the crosshead disassembly and assembly tool for the BOG booster compressor described in Example 1 of the utility model;

[0028] Figure 5 This is a schematic diagram of the first rod section and the second rod section in Example 2 of the utility model, where one end of the first rod section and the second rod section are close to each other;

[0029] Figure 6 This is a schematic diagram of the first rod section and the second rod section in Example 2 of the utility model when they are plugged into each other;

[0030] Figure 7 This is a schematic diagram of the connection between the BOG booster compressor crosshead disassembly and assembly tool and the crosshead described in Examples 1 and 2 of the utility model.

[0031] In the figure: 1. Connector; 2. Pry bar; 21. Pry hole; 22. First rod section; 221. First pin hole; 23. Second rod section; 231. Second pin hole; 24. Pin connection; 3. Pry handle; 4. Reinforcement plate; 100. BOG booster compressor crosshead disassembly and assembly tool; 200. BOG booster compressor body; 210. Crosshead;. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] Example 1

[0034] like Figure 1As shown, this embodiment provides a BOG booster compressor crosshead disassembly and assembly tool, including a connector 1, a pry bar 2 and a pry handle 3. The side wall of the connector 1 is provided with an external thread that matches with the screw hole thread in the middle of the crosshead. One end of the pry bar 2 is coaxially connected to the middle of one end of the connector 1. The end of the pry bar 2 away from the connector 1 is radially provided with a penetrating pry hole 21. The pry handle 3 is rod-shaped, which passes through the pry hole 21 to form a "T" shape with the pry bar 2. It has a simple structure, and the connector can be threadedly connected to the corresponding screw hole on the crosshead, and then the pry bar and the pry handle are combined to fine-tune the crosshead.

[0035] like Figure 4 As shown, in the above technical solution, a plurality of reinforcing plates 4 are evenly spaced along the circumferential direction at the connection between the pry bar 2 and the connecting head 1, so that the corresponding end of the pry bar is reinforcedly connected to the connecting head. Specifically, the reinforcing plate is a right triangle, one straight side of which is connected to the pry bar, and the other straight side of which is connected to the connecting head; preferably, 2-5 reinforcing plates can be provided.

[0036] Wherein, the pry bar, the connecting head and the reinforcing plate may be connected by welding.

[0037] In the above technical solution, the end of the connector 1 close to the pry bar 2 is provided with a skirt 11 protruding outwardly, so that the maximum depth of the connector and the cross head thread connection is when the skirt abuts against the cross head.

[0038] The pry bar 2 in the above technical solution is a spliced ​​bar, which makes it easy to use and occupies little space when stored. Specifically, the pry bar 2 includes a first rod section 22 and a second rod section 23, one end of the first rod section 22 is detachably connected to one end of the second rod section 23, and the other end of the first rod section 22 is coaxially connected to the connecting head 1, and the other end of the second rod section 23 is provided with the pry hole 21, which has a simple structure. After the connecting head and the crosshead are threaded into place, the second rod section can be connected to the first rod section, thereby avoiding the difficulty of assembling the BOG booster compressor crosshead disassembly tool with the crosshead.

[0039] In the above technical solution, the first rod section 22 and the second rod section 23 are both tubular rods, and their structures are simple.

[0040] like Figure 3As shown, in the above technical solution, a first pin hole 221 is radially provided passing through the first rod section 22 at one end close to the second rod section 23, and a second pin hole 231 is provided passing through the second rod section 23 at one end close to the first rod section 22. The ends of the first rod section 22 and the second rod section 23 close to each other are plugged into each other, and the first pin hole 221 and the second pin hole 231 are aligned and a pin connection piece 24 is inserted to detachably connect the first rod section 22 and the second rod section 23, and the structure is simple.

[0041] like Figure 2 As shown, in the above technical solution, two pry holes 21 are provided, and the two pry holes 21 are vertically cross-distributed, and the pry handle 3 selectively passes through any one of the pry holes 21, so that the pry handle can be flexibly used for operation.

[0042] The pin connector 24 in the above technical solution is a steel ball pin, which has a simple structure and is easy to use.

[0043] Example 2

[0044] Same as Example 1, except that Figure 5 and Figure 6 As shown, in the above technical solution, the inner hole of the first rod section 22 near one end of the second rod section 23 is a regular polygon (which can be a regular hexagon or a regular octagon), the outer wall of the second rod section 23 near one end of the first rod section 22 matches the inner hole of the corresponding end of the first rod section 22, and the second rod section 23 and the first rod section 22 are plugged into each other at one end close to each other, and the structure is simple.

[0045] The assembly structure of the crosshead disassembly and assembly tool for the BOG booster compressor provided in Example 1 and Example 2 is as follows: Figure 7 As shown, the crosshead 210 is a part of the BOG booster compressor body (which belongs to the prior art and is not described here in detail), and a corresponding position thereof has an operating window for the BOG booster compressor crosshead disassembly tool to extend into and connect with the crosshead.

[0046] The BOG booster compressor crosshead disassembly and assembly tools provided in Examples 1 and 2 can ensure that the crosshead and the slide shoe are accurately positioned and correctly installed during the repair and adjustment of the reciprocating compressor crosshead and the slide shoe when the relative position of the crosshead and the compressor body cannot be carefully observed.

[0047] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A BOG booster compressor crosshead disassembly and assembly tool, It is characterized in that The invention comprises a connecting head (1), a pry bar (2) and a pry handle (3); the side wall of the connecting head (1) is provided with an external thread that matches with the thread of the screw hole in the middle of the cross head; one end of the pry bar (2) is coaxially connected to the middle of one end of the connecting head (1); the end of the pry bar (2) away from the connecting head (1) is provided with a pry hole (21) penetrating radially; the pry handle (3) is rod-shaped and passes through the pry hole (21) to form a "T" shape with the pry bar (2).

2. The BOG booster compressor crosshead disassembly and assembly tool according to claim 1, It is characterized in that A plurality of reinforcing plates (4) are evenly spaced along the annular direction at the connection point between the pry bar (2) and the connecting head (1).

3. The BOG booster compressor crosshead disassembly and assembly tool according to claim 1, It is characterized in that The end of the connecting head (1) close to the pry bar (2) is provided with a skirt (11) protruding outwards.

4. The BOG booster compressor crosshead disassembly and assembly tool according to claim 1, It is characterized in that The pry bar (2) is a splicing bar.

5. The BOG booster compressor crosshead disassembly and assembly tool according to claim 4, It is characterized in that The pry bar (2) comprises a first rod section (22) and a second rod section (23); one end of the first rod section (22) is detachably connected to one end of the second rod section (23); the other end of the first rod section (22) is coaxially connected to the connecting head (1); and the other end of the second rod section (23) is provided with the pry hole (21).

6. The BOG booster compressor crosshead disassembly and assembly tool according to claim 5, It is characterized in that The first rod section (22) and the second rod section (23) are both tubular rods.

7. The BOG booster compressor crosshead disassembly and assembly tool according to claim 6, It is characterized in that A first pin hole (221) is radially provided at one end of the first rod section (22) close to the second rod section (23), and a second pin hole (231) is radially provided at one end of the second rod section (23) close to the first rod section (22). The ends of the first rod section (22) and the second rod section (23) close to each other are plugged into each other, and the first pin hole (221) and the second pin hole (231) are aligned and a pin connection piece (24) is inserted to detachably connect the first rod section (22) and the second rod section (23).

8. The BOG booster compressor crosshead disassembly and assembly tool according to claim 7, It is characterized in that The pin connection member (24) is a steel ball pin.

9. The BOG booster compressor crosshead disassembly and assembly tool according to claim 6, It is characterized in that The inner hole of the first rod section (22) close to one end of the second rod section (23) is in the shape of a regular polygon, the outer wall of the second rod section (23) close to one end of the first rod section (22) matches with the inner hole of the corresponding end of the first rod section (22), and the second rod section (23) and the first rod section (22) close to each other are plugged into each other.

10. The BOG booster compressor crosshead disassembly and assembly tool according to any one of claims 1 to 9, It is characterized in that Two pry holes (21) are provided, and the two pry holes (21) are vertically cross-distributed, and the pry handle (3) selectively passes through any one of the pry holes (21).

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