Low-vibration balanced crankshaft structure for air compressor

Abstract

The utility model discloses a low-vibration balance type crankshaft structure for an air compressor, and belongs to the technical field of crankshafts. The second connecting rod is arranged on the outer side of the first connecting rod, and two inserting grooves are formed in the side end of the second connecting rod; and the number of the inserting blocks is two, the two inserting blocks are both fixedly connected to the side end of the first connecting rod, and the two inserting blocks are movably connected into the two inserting grooves in an inserted mode. And the mounting stability of the first connecting rod and the second connecting rod is optimized through insertion connection of the insertion grooves and the insertion blocks, and then the mounting stability of the first connecting rod and the second connecting rod is further optimized through insertion connection of the threaded cylinders and the through holes.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshafts, and more specifically to a low-vibration balanced crankshaft structure for an air compressor. Background Art

[0002] The crankshaft is the most important component in the engine. It receives the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine to work.

[0003] The prior art discloses some patent documents with crankshaft structures. The Chinese patent with application number CN202420639798.3 discloses a crankshaft connecting rod structure, in which a positioning block is provided between the connecting rod big end and the connecting rod small end, and a fixing assembly that penetrates the positioning block is installed in the bolt through-hole. The positioning block is inserted into the positioning groove to connect and position the connecting rod big end and the connecting rod small end so that the docking surfaces of the connecting rod big end and the connecting rod small end are aligned. Then, the fixing assembly is passed through the bolt through-hole and the through-hole in sequence to fix the positioning block in the positioning groove to complete the fixation of the connecting rod big end and the connecting rod small end. A fixing ring is provided on the bolt so that it corresponds to the through-hole after installation. In combination with the outer diameter of the bolt being smaller than the inner diameter of the bolt through-hole, the contact between the bolt and the bolt through-hole is reduced, thereby reducing the contact area between the bolt and the connecting rod big end and the connecting rod small end, reducing the degree of wear, and avoiding the inconvenience of disassembly due to wear between the bolt and the connecting rod big end and the connecting rod small end during maintenance.

[0004] In the above patent, the connecting rod assembly is fixed by two bolts, and its fixing stability is poor. Therefore, we propose a low-vibration balanced crankshaft structure for an air compressor. Utility Model Content

[0005] Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present invention is to provide a low-vibration balanced crankshaft structure for an air compressor. The present invention facilitates fixing the first connecting rod and the second connecting rod through the threaded cooperation of the screw and the threaded barrel, and optimizes the installation stability of the first connecting rod and the second connecting rod through the insertion of the slot and the plug-in block, and then further optimizes the installation stability of the first connecting rod and the second connecting rod through the insertion of the threaded barrel and the through hole.

[0007] Technical Solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions:

[0009] A low-vibration balanced crankshaft structure for an air compressor, comprising:

[0010] First connecting rod;

[0011] a second connecting rod, the second connecting rod being arranged on the outside of the first connecting rod, and having two slots formed on a side end of the second connecting rod;

[0012] Insert blocks, wherein two insert blocks are provided, both of which are fixedly connected to the side ends of the first connecting rod, and the two insert blocks are movably inserted into the two slots;

[0013] The fixing mechanism is arranged on the first connecting rod and is connected to the first connecting rod and the second connecting rod.

[0014] As a preferred solution of the present invention, the fixing mechanism includes a plug-in assembly and a fixing assembly, and the plug-in assembly and the fixing assembly are both arranged on the first connecting rod, and the plug-in assembly and the fixing assembly are connected.

[0015] As a preferred solution of the present invention, the plug-in assembly includes a through hole, an annular groove, a socket, a first circular ring and a threaded barrel. The through hole and the annular groove are both set to two, the two through holes are opened on the two plug blocks, the two annular grooves are respectively opened on the upper and lower sides of the first connecting rod and the second connecting rod, the socket and the threaded barrel are both set to multiple, the multiple sockets are opened on the first connecting rod and the second connecting rod, the first circular ring is movably inserted in the annular groove at the bottom, the multiple threaded barrels are movably inserted in the multiple sockets, and the multiple threaded barrels are plugged into the two through holes.

[0016] As a preferred solution of the present invention, the fixing assembly includes a second ring and a screw, the second ring is movably inserted in the ring groove on the upper side, the screws are provided in plurality, the plurality of screws are inserted into the second ring, and the plurality of screws are threadedly connected in a plurality of threaded barrels.

[0017] As a preferred solution of the present invention, a sealing ring is movably inserted into the annular groove on the upper side, and the sealing ring is clamped with a plurality of screws.

[0018] As a preferred solution of the present invention, the number of the jacks, threaded barrels and screws is the same.

[0019] Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) In this solution, when the first connecting rod and the second connecting rod need to be installed together, the plug block is first inserted into the slot, and then the threaded barrel is inserted into the socket, and the threaded barrel is plugged into the through hole. After the threaded barrel is inserted into the socket, the first ring is clamped in the ring groove on the lower side, and then the second ring is sleeved in the ring groove on the upper side, and multiple screws are inserted into the second ring, and then connected to the threaded barrel through the screw thread. The threaded cooperation of the screw and the threaded barrel facilitates the fixing of the first connecting rod and the second connecting rod, and the plugging of the slot and the plug block further optimizes the installation stability of the first connecting rod and the second connecting rod, and then the plugging of the threaded barrel and the through hole further optimizes the installation stability of the first connecting rod and the second connecting rod.

[0022] (2) In this solution, multiple screws are connected by the second circular ring, and then the multiple screws are sealed by the sealing ring and the upper ring groove, thereby optimizing the stability of the installation of the first connecting rod and the second connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a main perspective view of the present utility model;

[0024] Figure 2 This is the first cross-sectional view of the present utility model;

[0025] Figure 3 This is a second cross-sectional view of the present invention;

[0026] Figure 4 This is a schematic diagram of the first connecting rod and the second connecting rod of the present invention;

[0027] Figure 5 This is an exploded view of the fixing mechanism of the present utility model.

[0028] Description of the numbers in the figure:

[0029] 1. First connecting rod; 2. Second connecting rod; 3. Slot; 4. Insert block; 5. Through hole; 6. Ring groove; 7. Insert hole; 8. First ring; 9. Threaded barrel; 10. Second ring; 11. Screw; 12. Sealing ring. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0031] Example:

[0032] See also Figure 1-Figure 5, a low-vibration balanced crankshaft structure for an air compressor, comprising:

[0033] First connecting rod 1;

[0034] The second connecting rod 2 is arranged on the outside of the first connecting rod 1, and two slots 3 are provided on the side end of the second connecting rod 2;

[0035] Insertion blocks 4 , two of which are fixedly connected to the side ends of the first connecting rod 1 , and movably inserted into the two slots 3 .

[0036] In this embodiment, the second connecting rod 2 is designed to be used in combination with the first connecting rod 1, and the slot 3 is opened to facilitate the connection with the plug block 4. The first connecting rod 1 and the second connecting rod 2 are conveniently installed through the friction between the slot 3 and the plug block 4, and the fixing mechanism facilitates the fixing of the first connecting rod 1 and the second connecting rod 2. The utility model facilitates the fixing of the first connecting rod 1 and the second connecting rod 2 through the threaded cooperation of the screw 11 and the threaded barrel 9, and optimizes the installation stability of the first connecting rod 1 and the second connecting rod 2 through the connection between the slot 3 and the plug block 4, and then further optimizes the installation stability of the first connecting rod 1 and the second connecting rod 2 through the connection between the threaded barrel 9 and the through hole 5.

[0037] Specifically, the fixing mechanism includes a plug-in assembly and a fixing assembly. Both the plug-in assembly and the fixing assembly are arranged on the first connecting rod 1, and the plug-in assembly and the fixing assembly are connected.

[0038] In this embodiment, the fixing mechanism includes a plug-in assembly and a fixing assembly. Both the plug-in assembly and the fixing assembly are arranged on the first connecting rod 1, and the plug-in assembly and the fixing assembly are connected.

[0039] Specifically, the plug-in assembly includes a through hole 5, an annular groove 6, a socket 7, a first circular ring 8 and a threaded barrel 9. The through hole 5 and the annular groove 6 are both set to two, and the two through holes 5 are opened on the two plug blocks 4. The two annular grooves 6 are respectively opened on the upper and lower sides of the first connecting rod 1 and the second connecting rod 2. The socket 7 and the threaded barrel 9 are both set to multiple, and the multiple sockets 7 are opened on the first connecting rod 1 and the second connecting rod 2. The first circular ring 8 is movably inserted in the annular groove 6 at the bottom, and the multiple threaded barrels 9 are movably inserted in the multiple sockets 7, and the multiple threaded barrels 9 are inserted into the two through holes 5.

[0040] In this embodiment, the through hole 5 is provided for the convenience of plugging with the threaded barrel 9, the annular groove 6 is provided for the convenience of clamping with the first ring 8, the second ring 10 and the sealing ring 12, the insertion hole 7 is provided for the convenience of plugging with the threaded barrel 9, and the threaded barrel 9 is provided for the convenience of threaded connection with the screw 11, and the plugging of the threaded barrel 9 and the through hole 5 is optimized.

[0041] Specifically, the fixing assembly includes a second ring 10 and a screw 11. The second ring 10 is movably inserted into the upper ring groove 6. The screw 11 is provided in plurality. The plurality of screws 11 are inserted into the second ring 10, and the plurality of screws 11 are threadedly connected to the plurality of threaded barrels 9.

[0042] In this embodiment, the second ring 10 is for facilitating the connection of the plurality of screws 11 , and the first connecting rod 1 and the second connecting rod 2 are conveniently installed through the threaded cooperation of the plurality of screws 11 and the plurality of threaded barrels 9 .

[0043] Specifically, a sealing ring 12 is movably inserted into the upper ring groove 6 , and the sealing ring 12 is clamped with a plurality of screws 11 .

[0044] In this embodiment, the plurality of screws 11 are sealed by the clamping engagement of the sealing ring 12 and the upper annular groove 6 , thereby optimizing the installation stability of the first connecting rod 1 and the second connecting rod 2 .

[0045] Specifically, the number of the jacks 7 , the threaded barrels 9 and the screws 11 is the same.

[0046] In this embodiment, the number of the insertion holes 7 , the threaded barrels 9 and the screws 11 are the same.

[0047] Working principle: When the first connecting rod 1 and the second connecting rod 2 need to be installed together, first insert the plug block 4 into the slot 3, then insert the threaded barrel 9 into the socket 7, and the threaded barrel 9 is plugged into the through hole 5. When the threaded barrel 9 is inserted into the socket 7, the first ring 8 is clamped in the lower ring groove 6, and then the second ring 10 is sleeved in the upper ring groove 6, and multiple screws 11 are inserted into the second ring 10, and then threadedly connected in the threaded barrel 9 through the screws 11. The threaded cooperation of the screws 11 and the threaded barrel 9 facilitates the fixing of the first connecting rod 1 and the second connecting rod 2, and the insertion of the slot 3 and the plug block 4 optimizes the installation stability of the first connecting rod 1 and the second connecting rod 2, and then the insertion of the threaded barrel 9 and the through hole 5 further optimizes the installation stability of the first connecting rod 1 and the second connecting rod 2.

[0048] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-vibration balanced crankshaft structure for an air compressor, characterized in that: include: a first connecting rod (1); A second connecting rod (2), the second connecting rod (2) being arranged on the outside of the first connecting rod (1), and having two slots (3) formed on the side end of the second connecting rod (2); Insertion blocks (4), wherein two of the insertion blocks (4) are provided, and both of the two insertion blocks (4) are fixedly connected to the side ends of the first connecting rod (1), and the two insertion blocks (4) are movably inserted into the two slots (3); A fixing mechanism is provided on the first connecting rod (1), and the fixing mechanism is connected to the first connecting rod (1) and the second connecting rod (2).

2. The low-vibration balanced crankshaft structure for an air compressor according to claim 1, characterized in that: The fixing mechanism comprises a plug-in assembly and a fixing assembly, both of which are arranged on the first connecting rod (1), and the plug-in assembly and the fixing assembly are connected.

3. The low-vibration balanced crankshaft structure for an air compressor according to claim 2, characterized in that: The plug-in assembly comprises a through hole (5), an annular groove (6), a socket (7), a first circular ring (8) and a threaded barrel (9); the through hole (5) and the annular groove (6) are both provided in two numbers; the two through holes (5) are provided on the two plug blocks (4); the two annular grooves (6) are provided on the upper and lower sides of the first connecting rod (1) and the second connecting rod (2), respectively; the socket (7) and the threaded barrel (9) are both provided in plurality; the plurality of sockets (7) are provided on the first connecting rod (1) and the second connecting rod (2); the first circular ring (8) is movably plugged into the annular groove (6) at the bottom; the plurality of threaded barrels (9) are movably plugged into the plurality of sockets (7); and the plurality of threaded barrels (9) are plugged into the two through holes (5).

4. The low-vibration balanced crankshaft structure for an air compressor according to claim 3, characterized in that: The fixing assembly includes a second ring (10) and a screw (11), wherein the second ring (10) is movably inserted into the annular groove (6) on the upper side, and the screw (11) is provided in plurality, wherein the plurality of screws (11) are inserted into the second ring (10), and the plurality of screws (11) are threadedly connected to the plurality of threaded barrels (9).

5. The low-vibration balanced crankshaft structure for an air compressor according to claim 4, characterized in that: A sealing ring (12) is movably inserted into the annular groove (6) on the upper side, and the sealing ring (12) is clamped with a plurality of screws (11).

6. The low-vibration balanced crankshaft structure for an air compressor according to claim 5, characterized in that: The number of the jacks (7), threaded barrels (9) and screws (11) is the same.

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