Gas compressor piston assembly convenient to replace

Abstract

The utility model relates to the technical field of piston mechanisms, in particular to a gas compressor piston assembly convenient to replace. The crosshead comprises a crosshead body, a connecting rod is arranged at the front end of the crosshead body, a piston head is arranged at the top end of the connecting rod, a pair of fixing assemblies is arranged in the crosshead body, a pin piece is arranged at the tail of the crosshead body, and a crankshaft connecting piece is movably arranged on the pin piece. By means of the unique connecting structure, great convenience is brought to maintenance and replacement work, when the connecting rod or the crosshead body is replaced, only two magnetic attraction tools need to be inserted into magnetic attraction grooves in the two sides of the crosshead body respectively, the fixed baffle can be rapidly rotated into a fan-shaped groove by means of attraction force of the magnetic plate and the magnetic attraction tools, the locking state of the connecting rod is relieved, and the connecting rod or the crosshead body is replaced. The connecting rod can be easily taken out by reversely rotating the connecting rod, the operation process is greatly simplified, a maintenance team can quickly complete replacement of the piston assembly, the downtime is shortened, the production loss caused by equipment failure and idling is reduced, the overall production efficiency is improved, and it is ensured that a production plan is advanced on time.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston mechanism technical field especially relates to a gas compressor piston assembly convenient to replace. BACKGROUND

[0002] In the long-term development course of gas compressor, piston assembly as the core key part, always faces many tricky problems. The traditional gas compressor piston assembly, there is congenital defect in the connecting structure of connecting rod and cross head main body. The past connecting mode mostly adopts complex bolt fastening, this not only requires extremely high machining precision, makes production cost high, still after the long time operation of equipment, because of the frequent bearing of the violent vibration produced by piston reciprocating motion and the complex stress impact, bolt loosening, connecting part wear deformation etc. problems are extremely easy to cause.

[0003] Once these faults appear, the maintenance replacement work is extremely complex. The disassembly process is complex and lengthy, and the technician needs to spend a lot of time carefully removing many small bolts, and in the disassembly process, the parts are easily damaged again, further increasing the maintenance cost and time cost, causing the equipment downtime to be greatly extended, seriously interfering with the normal production progress of the enterprise, causing serious loss of production efficiency. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of gas compressor piston assembly convenient to replace to solve the problems raised in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme, it includes cross head main body, the cross head main body front end is provided with connecting rod, the connecting rod top end is provided with piston head, the cross head main body is provided with a pair of fixed assembly in, the cross head main body tail part is provided with pin, the pin is movably provided with crankshaft connecting piece.

[0006] As preferred in the utility model, the cross head main body front end is provided with installation groove, the installation groove upper and lower ends are provided with "1" shaped groove, the installation groove bottom is provided with a pair of conversion grooves in symmetrical angle, the inner wall of the deepest part of each conversion groove is provided with sector groove, the fixed assembly is arranged in sector groove.

[0007] As preferred in the utility model, the fixed assembly includes fixed baffle arranged in sector groove, the both sides of the fixed baffle are provided with struts in symmetry, the outer sides of two struts are provided with shaft in symmetry, the shaft is movably arranged in sector groove, the outer sides of two struts are provided with torsion spring, one end of the torsion spring is arranged on the strut, the other end is arranged on the inner wall of sector groove, the fixed baffle is provided with magnetic plate.

[0008] As a preferred embodiment of this utility model, magnetic grooves are provided on the outer walls of both sides of the crosshead body at positions corresponding to the magnetic plates.

[0009] As a preferred embodiment of this utility model, the tail end of the connecting rod is provided with a corresponding mounting slot and a "1" shaped limiting block is provided on the outer wall of the mounting block at the position corresponding to the two "1" shaped slots.

[0010] As a preferred embodiment of this utility model, the crankshaft connector includes a connecting handle, a collar is provided at the tail of the connecting handle, the collar is movably mounted on a pin, and a first U-shaped part is provided at the top of the connecting handle, the first U-shaped part being fixed to a second U-shaped part by several bolts.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] This utility model, through its unique connection structure, greatly facilitates maintenance and replacement work. When replacing the connecting rod or crosshead body, this component only requires two magnetic tools, which are inserted into the magnetic slots on both sides of the crosshead body. The magnetic force of the magnetic plate and the magnetic tools quickly rotates the fixing baffle into the fan-shaped slot, releasing the connecting rod from its locked state. The connecting rod can then be easily removed by rotating it in the opposite direction. The operation process is greatly simplified. During equipment maintenance, the repair team can quickly complete the replacement of the piston assembly, significantly shortening downtime, reducing production losses caused by equipment malfunctions and idleness, improving overall production efficiency, and ensuring that production plans are carried out on time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure on the other side of this utility model;

[0015] Figure 3 This is a schematic diagram of the linkage structure of this utility model;

[0016] Figure 4 This is a side sectional view of the present invention.

[0017] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0018] Figure 6 This is a schematic diagram of the fixing component structure of this utility model;

[0019] Figure 7 This is a schematic diagram of the main structure of the crosshead of this utility model;

[0020] Figure 8 This is a schematic diagram of the crankshaft connector structure of this utility model.

[0021] Reference numerals: Crosshead body 1, mounting groove 10, "1" shaped groove 11, rotating groove 12, pin 13, sector groove 14, magnetic suction groove 15, connecting rod 2, insert block 20, "1" shaped limiting block 21, piston head 3, fixing assembly 4, fixing baffle 40, support rod 41, rotating shaft 42, magnetic plate 43, torsion spring 44, crankshaft connector 5, connecting handle 50, collar 51, first U-shaped part 52, second U-shaped part 53, bolt 54. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] like Figures 1-8 As shown, the present invention proposes a replaceable gas compressor piston assembly, which mainly consists of a crosshead body 1, a connecting rod 2, a piston head 3, a fixing assembly 4, and a crankshaft connector 5.

[0024] The front end of the crosshead body 1 is provided with a mounting groove 10. There is an "I" shaped groove 11 at each of the upper and lower ends of the mounting groove 10. A pair of rotating grooves 12 are symmetrically distributed at the bottom. A fan-shaped groove 14 is machined on the inner wall of the deepest part of each rotating groove 12. The fixing component 4 is installed in these fan-shaped grooves 14.

[0025] The piston head 3 is fixed at the top of the connecting rod 2, and there is an insert 20 at its tail corresponding to the mounting groove 10. A "1" shaped limiting block 21 is installed on the outer wall of the insert 20 at the position corresponding to the "1" shaped groove 11, which is used to cooperate with the mounting groove 10 at the front end of the crosshead body 1 and related structures to achieve connection and positioning.

[0026] The fixing component 4 includes a fixing baffle 40 located in the sector groove 14. Support rods 41 are symmetrically connected on both sides of the fixing baffle 40. A rotating shaft 42 is provided on the outside of the support rod 41. The rotating shaft 42 is movably installed in the sector groove 14. A torsion spring 44 is also sleeved on the outside of the support rod 41. One end of the torsion spring 44 is fixed to the support rod 41, and the other end is fixed to the inner wall of the sector groove 14. A magnetic plate 43 is installed on the fixing baffle 40, and magnetic suction grooves 15 are opened on the outer walls of both sides of the crosshead body 1 corresponding to the magnetic plate 43, so that the fixing baffle 40 can be operated with a magnetic suction tool when needed.

[0027] The crosshead body 1 has a pin 13 at its tail. The collar 51 of the crankshaft connector 5 is movably fitted on the pin 13. The crankshaft connector 5 also includes a connecting handle 50. The tail of the connecting handle 50 is connected to the collar 51, and the top is provided with a first U-shaped part 52. The first U-shaped part 52 and the second U-shaped part 53 are fixed by several bolts 54 to form a stable connection, which meets the power transmission and mechanical performance requirements when the equipment is running.

[0028] During assembly, first clean all parts to ensure that there are no impurities to hinder assembly. Pick up the connecting rod 2 and align the insert 20 at the bottom of the connecting rod 2 vertically with the mounting groove 10 at the front end of the crosshead body 1. At the same time, align the two "1"-shaped limit blocks 21 with the two "1"-shaped grooves 11 respectively. After confirming that there are no errors, smoothly insert the connecting rod 2 directly into the mounting groove 10, so that the insert 20 can smoothly reach the bottom of the mounting groove 10.

[0029] Next, slowly rotate the connecting rod 2 90 degrees to rotate the "1"-shaped limiting block 21 into the rotating groove 12. When the "1"-shaped limiting block 21 touches the fixed baffle 40, the fixed baffle 40 will be pressed into the fan-shaped groove 14. When the "1"-shaped limiting block 21 is completely rotated to below the fixed baffle 40, the torsion spring 44 installed in the fan-shaped groove 14 will play its role and push the fixed plate out of the fan-shaped groove 14 to reset. At this time, it can be seen that the top of the fixed baffle 40 is exactly in the arc groove of the "1"-shaped limiting block 21. In this way, if the connecting rod 2 is subjected to force and rotates, the fixed baffle 40 will abut against the "1"-shaped limiting block 21, making it unable to rotate, thereby firmly fixing the connecting rod 2 in the front end of the crosshead body 1.

[0030] When it is necessary to replace the connecting rod 2 or the crosshead body 1, prepare two magnetic tools and insert them into the two magnetic slots 15 respectively. The two magnetic plates 43 are attracted by the magnetic tools, which drives the fixed baffle 40 to rotate backward until it is rotated into the fan-shaped slot 14. Then, rotate the connecting rod 2 in the opposite direction and slowly remove the connecting rod 2 in the reverse order of insertion for replacement. You must concentrate throughout the operation and strictly follow the steps to ensure safety and order.

[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A replaceable gas compressor piston assembly, comprising a crosshead body (1), a connecting rod (2) disposed at the front end of the crosshead body (1), and a piston head (3) disposed at the top end of the connecting rod (2), characterized in that: The crosshead body (1) is provided with a pair of fixing components (4), and the tail of the crosshead body (1) is provided with a pin (13), and a crankshaft connector (5) is movably provided on the pin (13).

2. The replaceable gas compressor piston assembly according to claim 1, characterized in that: The front end of the crosshead body (1) is provided with a mounting groove (10), and the upper and lower ends of the mounting groove (10) are provided with "1" shaped grooves (11). A pair of rotating grooves (12) are symmetrically provided at the bottom of the mounting groove (10). A fan-shaped groove (14) is provided on the inner wall of the deepest part of each rotating groove (12). The fixing component (4) is set in the fan-shaped groove (14).

3. The replaceable gas compressor piston assembly according to claim 2, characterized in that: The fixing component (4) includes a fixing baffle (40) disposed in a fan-shaped groove (14). Support rods (41) are symmetrically arranged on both sides of the fixing baffle (40). Rotating shafts (42) are symmetrically arranged on the outer sides of the two support rods (41). The rotating shafts (42) are movably disposed in the fan-shaped groove (14). Torsion springs (44) are provided on the outer sides of the two support rods (41). One end of the torsion spring (44) is disposed on the support rod (41), and the other end is disposed on the inner wall of the fan-shaped groove (14). A magnetic plate (43) is disposed on the fixing baffle (40).

4. The replaceable gas compressor piston assembly according to claim 3, characterized in that: The outer walls on both sides of the crosshead body (1) are provided with magnetic grooves (15) corresponding to the positions of the magnetic plates (43).

5. A replaceable gas compressor piston assembly according to claim 2, characterized in that: The tail of the connecting rod (2) is provided with a corresponding mounting slot (10) insert (20), and the outer wall of the insert (20) is provided with a "1" shaped limiting block (21) corresponding to the two "1" shaped slots (11).

6. The replaceable gas compressor piston assembly according to claim 1, characterized in that: The crankshaft connector (5) includes a connecting handle (50), a collar (51) is provided at the tail of the connecting handle (50), the collar (51) is movably disposed on the pin (13), and a first U-shaped part (52) is provided at the top of the connecting handle (50), the first U-shaped part (52) is fixed to a second U-shaped part (53) by several bolts (54).

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