Abrasion-resistant crankshaft

Abstract

The utility model discloses an abrasion-resistant crankshaft, which belongs to the technical field of crankshafts and comprises a crankshaft body, a crankshaft seat fixedly connected to one end of the crankshaft body and a shaft rod fixedly connected to the other end of the crankshaft body, a reinforcing ring is sleeved outside the shaft rod, and mounting holes are symmetrically formed in the surface of the reinforcing ring. An assembling base is welded to the tail end of the reinforcing ring, and through holes are symmetrically formed in the surface of the assembling base. The shaft rod is sleeved with the assembling base, the assembling base is directionally pushed along the shaft rod till the assembling base is attached to the end face of the crankshaft body, the position of the assembling base is finely adjusted till the through hole of the assembling base corresponds to the threaded groove, a locking piece penetrates through the through hole of the assembling base and extends into the threaded groove, and assembling of the assembling base is completed; when the crankshaft body works, the connecting position of the crankshaft body and the shaft rod is reinforced through the assembling base and the reinforcing ring, the torsion resistance and the abrasion resistance are improved, and therefore the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshafts, and more specifically to an anti-wear crankshaft. Background Art

[0002] The crankshaft is the most important part of the engine. It bears the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsion loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surface must be wear-resistant, work evenly and have good balance.

[0003] After searching, a crankshaft structure with an existing announcement number of CN204458787U is found, which includes a crankshaft, and the crankshaft includes at least two crankshaft bodies connected together, and the crankshaft bodies are fixed together by connecting sleeves; the crankshaft body includes a first counterweight block, a second counterweight block and a bend that are connected as a whole; the bend is arranged between the first counterweight block and the second counterweight block, and the bend is installed on the edges of the first counterweight block and the second counterweight block; the central axes of the bends of two adjacent crankshaft bodies are located on different straight lines; the first counterweight block and the second counterweight block are provided with connecting ends for connecting the two crankshaft bodies together; the connecting ends are provided with connecting parts for interference installation in the connecting sleeve.

[0004] For the commonly used crankshaft structure, a shaft rod is installed at the end position of the crankshaft. The shaft rod plays the role of auxiliary support and guidance. As the crankshaft rotates, the connection between the shaft rod and the crankshaft is subjected to a large torque, and the abrasion phenomenon is serious. Therefore, we propose an anti-wear crankshaft to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a wear-resistant crankshaft, wherein the two ends of the crankshaft body are fixedly connected with a crankshaft seat and a shaft rod. During assembly, the assembly seat is sleeved on the outside of the shaft rod, and the assembly seat is pushed directionally along the shaft rod until the assembly seat fits against the end face of the crankshaft body, and the position of the assembly seat is fine-tuned until the through hole of the assembly seat corresponds to the thread groove, and a locking piece is used to pass through the through hole of the assembly seat and extend to the inside of the thread groove to complete the assembly of the assembly seat. When the crankshaft body is working, the assembly seat and the reinforcement ring reinforce the connection between the crankshaft body and the shaft rod, thereby improving the torsion resistance and wear resistance, thereby extending the service life; reinforcement plates are welded equidistantly on the circumference of the outer surface of the assembly seat, and the reinforcement plates and the reinforcement ring are fixedly connected, and the reinforcement plates reinforce the connection between the assembly seat and the reinforcement ring.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] An anti-abrasion crankshaft includes a crankshaft body, a crankshaft seat fixedly connected to one end of the crankshaft body, and a shaft rod fixedly connected to the other end of the crankshaft body. A reinforcement ring is sleeved outside the shaft rod, and mounting holes are symmetrically formed on the surface of the reinforcement ring.

[0010] An assembly seat is welded to the end of the reinforcement ring, and through holes are symmetrically formed on the surface of the assembly seat.

[0011] Preferably, a threaded groove is formed at the end face position of the crankshaft body, and the through hole of the assembly seat corresponds to the threaded groove.

[0012] Preferably, the assembly seat fits on the end face position of the crankshaft body, and a sealing sleeve is sleeved outside the assembly seat.

[0013] Preferably, reinforcing plates are circumferentially and equidistantly welded on the outer surface of the assembly seat, and the reinforcing plates are fixedly connected to the reinforcement ring.

[0014] Preferably, a sealing ring is bonded at the open end position of the reinforcement ring, and the sealing ring is sleeved outside the shaft rod.

[0015] Preferably, anti-slip grooves are formed on the outer surface of the reinforcement ring.

[0016] Preferably, positioning grooves are formed on the surface of the shaft rod, and the mounting holes of the reinforcement ring correspond to the positioning grooves.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the utility model are as follows:

[0019] (1) In this solution, a crankshaft seat and a shaft rod are fixedly connected to both ends of the crankshaft body. During assembly, the assembly seat is sleeved outside the shaft rod, and the assembly seat is pushed along the shaft rod in a fixed direction until the assembly seat fits on the end face of the crankshaft body. The position of the assembly seat is finely adjusted until the through hole of the assembly seat corresponds to the threaded groove. A locking member passes through the through hole of the assembly seat and extends into the threaded groove to complete the assembly of the assembly seat. When the crankshaft body works, the assembly seat and the reinforcement ring reinforce the connection between the crankshaft body and the shaft rod, improving the anti-torsion performance and anti-abrasion performance, thereby extending the service life; reinforcing plates are circumferentially and equidistantly welded on the outer surface of the assembly seat, and the reinforcing plates are fixedly connected to the reinforcement ring, and the reinforcing plates reinforce the connection between the assembly seat and the reinforcement ring.

[0020] (2) A sealing sleeve is sleeved outside the assembly seat of this solution. The setting of the sealing sleeve improves the sealing performance at the connection between the assembly seat and the crankshaft body, and has good dust-proof performance; a sealing ring is adhesively bonded at the open end of the reinforcing ring, and the sealing ring is sleeved outside the shaft rod, which improves the sealing performance at the connection between the reinforcing ring and the shaft rod, and has good dust-proof performance; positioning grooves are provided on the surface of the shaft rod, and the mounting holes of the reinforcing ring correspond to the positioning grooves. When locking the assembly seat, a locking member penetrates through the mounting holes of the reinforcing ring and extends into the positioning grooves to improve the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a structural schematic diagram of the crankshaft body and the shaft rod of the present utility model;

[0023] Figure 3 is a structural schematic diagram of the assembly seat and the reinforcing ring of the present utility model;

[0024] Figure 4 is a structural schematic diagram of the assembly seat and the reinforcing ring from another perspective of the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1, crankshaft seat; 2, crankshaft body; 201, thread groove; 3, shaft rod; 301, positioning groove; 4, assembly seat; 5, reinforcing ring; 6, sealing ring; 7, mounting hole; 8, reinforcing plate; 9, sealing sleeve; 10, through hole; 11, anti-slip groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1:

[0029] Please refer to Figures 1-4 , an anti-abrasion crankshaft, including a crankshaft body 2, a crankshaft seat 1 fixedly connected to one end of the crankshaft body 2, and a shaft rod 3 fixedly connected to the other end of the crankshaft body 2. A reinforcing ring 5 is sleeved outside the shaft rod 3, and mounting holes 7 are symmetrically provided on the surface of the reinforcing ring 5;

[0030] An assembly seat 4 is welded to the end of the reinforcing ring 5, and through holes 10 are symmetrically provided on the surface of the assembly seat 4.

[0031] A threaded groove 201 is provided at the end face position of the crankshaft body 2. The through hole 10 of the assembly seat 4 corresponds to the threaded groove 201. The assembly seat 4 is attached to the end face position of the crankshaft body 2. A sealing sleeve 9 is sleeved outside the assembly seat 4. Reinforcing plates 8 are welded equidistantly on the outer surface circumference of the assembly seat 4. The reinforcing plates 8 are fixedly connected to the reinforcing ring 5.

[0032] It should be noted that the crankshaft seat 1 and the shaft rod 3 are fixedly connected to both ends of the crankshaft body 2. During assembly, the assembly seat 4 is sleeved outside the shaft rod 3, and the assembly seat 4 is pushed directionally along the shaft rod 3 until the assembly seat 4 is attached to the end face of the crankshaft body 2. The position of the assembly seat 4 is finely adjusted until the through hole 10 of the assembly seat 4 corresponds to the threaded groove 201. A locking member is used to penetrate the through hole 10 of the assembly seat 4 and extend into the threaded groove 201 to complete the assembly of the assembly seat 4. When the crankshaft body 2 works, the assembly seat 4 and the reinforcing ring 5 reinforce the connection between the crankshaft body 2 and the shaft rod 3, improving the torsional resistance and abrasion resistance, thereby extending the service life; reinforcing plates 8 are welded equidistantly on the outer surface circumference of the assembly seat 4. The reinforcing plates 8 are fixedly connected to the reinforcing ring 5, and the reinforcing plates 8 reinforce the connection between the assembly seat 4 and the reinforcing ring 5.

[0033] Refer to Figures 1-4 , a sealing ring 6 is bonded at the open end position of the reinforcing ring 5. The sealing ring 6 is sleeved outside the shaft rod 3. Anti-slip grooves 11 are provided on the outer surface of the reinforcing ring 5. Positioning grooves 301 are provided on the surface of the shaft rod 3. The mounting holes 7 of the reinforcing ring 5 correspond to the positioning grooves 301.

[0034] It should be noted that a sealing sleeve 9 is sleeved outside the assembly seat 4. The setting of the sealing sleeve 9 improves the sealing performance at the connection between the assembly seat 4 and the crankshaft body 2, and has good dust-proof performance; a sealing ring 6 is bonded at the open end position of the reinforcing ring 5. The sealing ring 6 is sleeved outside the shaft rod 3, improving the sealing performance at the connection between the reinforcing ring 5 and the shaft rod 3, and having good dust-proof performance; positioning grooves 301 are provided on the surface of the shaft rod 3. The mounting holes 7 of the reinforcing ring 5 correspond to the positioning grooves 301. When the assembly seat 4 is locked, a locking member is used to penetrate the mounting holes 7 of the reinforcing ring 5 and extend into the positioning grooves 301 to improve the stability of the connection.

[0035] During use: At both ends of the crankshaft body 2, there are fixedly connected a crankshaft seat 1 and a shaft rod 3. During assembly, the assembly seat 4 is sleeved outside the shaft rod 3, and the assembly seat 4 is pushed directionally along the shaft rod 3 until the assembly seat 4 fits against the end face of the crankshaft body 2. The position of the assembly seat 4 is finely adjusted until the through hole 10 of the assembly seat 4 corresponds to the threaded groove 201. A locking member is used to penetrate the through hole 10 of the assembly seat 4 and extend into the threaded groove 201 to complete the assembly of the assembly seat 4. When the crankshaft body 2 works, the assembly seat 4 and the reinforcement ring 5 reinforce the connection between the crankshaft body 2 and the shaft rod 3, improving the torsional resistance and abrasion resistance, thereby extending the service life; Reinforcement plates 8 are welded equidistantly on the outer surface circumference of the assembly seat 4, and the reinforcement plates 8 are fixedly connected to the reinforcement ring 5. The reinforcement plates 8 reinforce the connection between the assembly seat 4 and the reinforcement ring 5; A sealing sleeve 9 is sleeved outside the assembly seat 4. The setting of the sealing sleeve 9 improves the sealing performance at the connection between the assembly seat 4 and the crankshaft body 2, and has good dust-proof performance; A sealing ring 6 is adhesively bonded at the opening end position of the reinforcement ring 5. The sealing ring 6 is sleeved outside the shaft rod 3, improving the sealing performance at the connection between the reinforcement ring 5 and the shaft rod 3, and having good dust-proof performance; A positioning groove 301 is provided on the surface of the shaft rod 3, and the mounting hole 7 of the reinforcement ring 5 corresponds to the positioning groove 301. While locking the assembly seat 4, a locking member is used to penetrate the mounting hole 7 of the reinforcement ring 5 and extend into the positioning groove 301 to improve the stability of the connection.

[0036] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improvement concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An anti-wear crankshaft, comprising a crankshaft body (2), a crankshaft seat (1) fixedly connected to one end of the crankshaft body (2), and a shaft (3) fixedly connected to the other end of the crankshaft body (2), characterized in that: The shaft (3) is sleeved with a reinforcement ring (5) on its exterior, and the surface of the reinforcement ring (5) is symmetrically provided with mounting holes (7); An assembly seat (4) is welded to the end of the reinforcement ring (5), and through holes (10) are symmetrically provided on the surface of the assembly seat (4).

2. The anti-wear crankshaft according to claim 1, characterized in that: A thread groove (201) is provided at the end surface of the crankshaft body (2), and the through hole (10) of the assembly seat (4) corresponds to the thread groove (201).

3. The anti-wear crankshaft according to claim 1, characterized in that: The assembly seat (4) is fitted on the end surface of the crankshaft body (2), and a sealing sleeve (9) is provided on the outside of the assembly seat (4).

4. The anti-wear crankshaft according to claim 1, characterized in that: The outer surface of the assembly seat (4) is circumferentially welded with reinforcement plates (8) at equal intervals, and the reinforcement plates (8) and the reinforcement ring (5) are fixedly connected.

5. The anti-wear crankshaft according to claim 1, characterized in that: A sealing ring (6) is bonded to the open end of the reinforcement ring (5), and the sealing ring (6) is sleeved on the outer position of the shaft rod (3).

6. The anti-wear crankshaft according to claim 1, characterized in that: The outer surface of the reinforcement ring (5) is provided with an anti-slip groove (11).

7. The anti-wear crankshaft according to claim 1, characterized in that: A positioning groove (301) is provided on the surface of the shaft rod (3), and the mounting hole (7) of the reinforcement ring (5) corresponds to the positioning groove (301).

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