Wear-resistant engine crankshaft

Abstract

The utility model discloses a wear-resistant engine crankshaft, which relates to the technical field of crankshafts and comprises a plurality of main journals, cranks are fixedly connected to two ends of the main journals, a connecting rod journal is fixedly connected between every two opposite cranks, and an adjustable balance mechanism is mounted at one end, far away from the connecting rod journal, of each crank. By means of the adjustable balance mechanism, a corresponding number of balance blocks can be added according to the balance condition of a crankshaft, the positions of the balance blocks can be changed, the balance blocks can be fixed only by screwing nuts, the balance blocks can be fixed conveniently, and the balance blocks can be fixed conveniently. The balance of the crankshaft can be conveniently adjusted during subsequent detection, and the wear-resistant protection mechanism is arranged, so that bolts for fixing a first semicircular wear-resistant sheet and a second semicircular wear-resistant sheet are located on one side of the first semicircular wear-resistant sheet, and subsequent mounting and dismounting are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to crankshaft technical field, concretely is a kind of wear-resistant engine crankshaft. BACKGROUND

[0002] Crankshaft is a kind of mechanical parts, is the important component in engine, through crankshaft the linear reciprocating motion of piston and connecting rod in engine is changed into rotary motion to drive other components to operate, with the rapid development of social economy nowadays, automobile becomes the necessity of every family, therefore the demand of crankshaft is increasing day by day, by searching, the patent with Chinese patent publication No.

[0003] The above technical scheme can effectively reduce the direct contact between the crankshaft and other metal parts, thereby reducing friction, reducing wear, prolonging the service life of the crankshaft and reducing maintenance costs, but the screws for fixing the wear-resistant assembly are located on the two hard alloy rings respectively, which need to be operated on both sides respectively, so that installation and disassembly are inconvenient, and the balance of the crankshaft cannot be adjusted, thereby reducing the practicability. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a wear-resistant engine crankshaft, which solves the problems raised in the background art.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a wear-resistant engine crankshaft, comprising a plurality of main shaft necks, both ends of the main shaft neck are fixedly connected with a crank, an opposite two The crank is fixedly connected with a connecting rod shaft neck between, the crank is installed with adjustable balance mechanism at the end away from connecting rod shaft neck, the outer surface of connecting rod shaft neck is sleeved with wear-resistant protection mechanism;

[0006] The adjustable balance mechanism comprises a groove opened in the end of the crank, a sliding block is slidably connected in the groove, a screw rod is fixedly connected to the outer surface of the sliding block, and a balance block is sleeved on the outer surface of the screw rod.

[0007] Preferably, the outer surface of the screw rod is threadedly connected with a nut, and the outer surface of the sliding block is fixedly connected with an antiskid plate, so as to lock the balance block.

[0008] Preferably, the cross section of the groove is T-shaped, and a gasket is arranged between the nut and the balance block, so as to improve the stability of the balance block.

[0009] Preferably, the wear-resistant protection mechanism comprises a first semicircular wear-resistant sheet and a second semicircular wear-resistant sheet symmetrically arranged on both sides of the connecting rod journal, a plurality of first connecting rods are fixedly connected to the inner wall of the first semicircular wear-resistant sheet, a plurality of second connecting rods are fixedly connected to the inner wall of the second semicircular wear-resistant sheet, and a bolt penetrating the first connecting rods and the second connecting rods is rotationally connected to the outer surface of the first semicircular wear-resistant sheet, so that the first semicircular wear-resistant sheet and the second semicircular wear-resistant sheet can be quickly installed and disassembled.

[0010] Preferably, the outer surface of the first semicircular wear-resistant sheet is provided with a countersunk hole matched with the bolt, the outer surface of the connecting rod journal is provided with a through hole matched with the first connecting rods and the second connecting rods, and the outer surfaces of the first semicircular wear-resistant sheet and the second semicircular wear-resistant sheet are provided with wear-resistant layers, so that the wear resistance of the crankshaft can be improved.

[0011] Preferably, the outer surfaces of the two cranks are fixedly connected with end shafts, so that the engine can be conveniently connected.

[0012] The utility model provides a wear-resistant engine crankshaft, has the following beneficial effects:

[0013] 1、 this wear-resistant engine crankshaft, through setting adjustable balance mechanism, can add corresponding number of balance block according to the balance condition of crankshaft, and can change the position of balance block, only need to tighten the nut to fix the balance block, the convenience subsequent detection is adjusted to the balance of crankshaft, thereby solve the problem that the existing crankshaft is inconvenient to adjust the balance.

[0014] 2、 this wear-resistant engine crankshaft, through setting wear-resistant protection mechanism, the bolt for fixing first semicircular wear-resistant sheet and second semicircular wear-resistant sheet is located in one side of first semicircular wear-resistant sheet, the convenience subsequent installation and disassembly, thereby solve the problem that the wear-resistant assembly of existing crankshaft is inconvenient to disassemble and install. DETAILED DESCRIPTION

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the partial structure schematic diagram of the utility model;

[0017] Figure 3 It is the structure schematic diagram of adjustable balance mechanism of the utility model;

[0018] Figure 4 It is the partial structure schematic diagram of wear-resistant protection mechanism of the utility model.

[0019] In the diagram, 1. Main journal; 2. Crank; 3. Connecting rod journal; 4. Adjustable balancing mechanism; 41. Groove; 42. Slider; 43. Screw; 44. Balance block; 45. Nut; 46. Anti-slip plate; 47. Washer; 5. Wear-resistant protective mechanism; 51. First semi-circular wear-resistant plate; 52. Second semi-circular wear-resistant plate; 53. First connecting rod; 54. Second connecting rod; 55. Bolt; 56. Countersunk hole; 57. Through hole; 6. End shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: As Figures 1 to 3 As shown, a wear-resistant engine crankshaft includes multiple main journals 1. Cranks 2 are fixedly connected to both ends of each main journal 1. Connecting rod journals 3 are fixedly connected between two opposing cranks 2. End shafts 6 are fixedly connected to the outer surfaces of the cranks 2 on both sides. An adjustable balancing mechanism 4 is installed at the end of the crank 2 away from the connecting rod journal 3. The adjustable balancing mechanism 4 includes a groove 41 formed at the end of the crank 2. A slider 42 is slidably connected inside the groove 41. A screw 43 is fixedly connected to the outer surface of the slider 42. A balance block 44 is sleeved on the outer surface of the screw 43. A nut 45 is threaded onto the outer surface of the screw 43. An anti-slip plate 46 is fixedly connected to the outer surface of the slider 42. The groove 41 has a T-shaped cross-section, and a washer 47 is provided between the nut 45 and the balance block 44.

[0022] In use, a corresponding number of balance blocks 44 can be added according to the balance of the crankshaft, and the position of the balance blocks 44 can be changed. Simply tighten the nut 45 to fix the balance blocks 44, which makes it convenient to adjust the balance of the crankshaft during subsequent testing, thereby solving the problem that the balance of the existing crankshaft is inconvenient to adjust.

[0023] Example 2: Figures 1 to 4As shown, the outer surface of the connecting rod journal 3 is sleeved with a wear-resistant protection mechanism 5, which includes a first semicircular wear-resistant sheet 51 and a second semicircular wear-resistant sheet 52 symmetrically arranged on both sides of the connecting rod journal 3, a plurality of first connecting rods 53 are fixedly connected to the inner wall of the first semicircular wear-resistant sheet 51, a plurality of second connecting rods 54 are fixedly connected to the inner wall of the second semicircular wear-resistant sheet 52, and a bolt 55 penetrating the first connecting rod 53 and connected with the second connecting rod 54 is rotatably connected to the outer surface of the first semicircular wear-resistant sheet 51. The outer surface of the first semicircular wear-resistant sheet 51 is provided with a countersunk hole 56 matched with the bolt 55, the outer surface of the connecting rod journal 3 is provided with a through hole 57 matched with the first connecting rod 53 and the second connecting rod 54, and the outer surfaces of the first semicircular wear-resistant sheet 51 and the second semicircular wear-resistant sheet 52 are provided with wear-resistant layers.

[0024] In use, the first semicircular wear-resistant sheet 51 and the second semicircular wear-resistant sheet 52 are symmetrically sleeved on the surface of the connecting rod journal 3, which not only improves the wear resistance of the crankshaft, but also eliminates the need for overall replacement of the crankshaft during maintenance, reducing production costs, and the bolts 55 used to fix the first semicircular wear-resistant sheet 51 and the second semicircular wear-resistant sheet 52 are located on one side of the first semicircular wear-resistant sheet 51, facilitating subsequent installation and disassembly, thereby solving the problem of inconvenient disassembly and installation of the wear-resistant components of the existing crankshaft

[0025] Working principle: In use, the appropriate number of balance blocks 44 can be added according to the balance of the crankshaft, and the position of the balance block 44 can be changed, and the balance block 44 can be fixed by tightening the nut 45, which facilitates subsequent detection and adjustment of the balance of the crankshaft, thereby solving the problem of inconvenient adjustment of the balance of the existing crankshaft.

[0026] In use, the first semicircular wear-resistant sheet 51 and the second semicircular wear-resistant sheet 52 are symmetrically sleeved on the surface of the connecting rod journal 3, which not only improves the wear resistance of the crankshaft, but also eliminates the need for overall replacement of the crankshaft during maintenance, reducing production costs, and the bolts 55 used to fix the first semicircular wear-resistant sheet 51 and the second semicircular wear-resistant sheet 52 are located on one side of the first semicircular wear-resistant sheet 51, facilitating subsequent installation and disassembly, thereby solving the problem of inconvenient disassembly and installation of the wear-resistant components of the existing crankshaft.

[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A wear resistant engine crankshaft comprising a plurality of main journals (1), characterized in that: Both ends of the main shaft neck (1) are fixedly connected with cranks (2), the opposite two cranks (2) are fixedly connected with a connecting rod shaft neck (3), one end of the crank (2) away from the connecting rod shaft neck (3) is provided with an adjustable balance mechanism (4), the outer surface of the connecting rod shaft neck (3) is sleeved with a wear-resistant protection mechanism (5); The adjustable balance mechanism (4) comprises a groove (41) opened in the end of the crank (2), the inside of the groove (41) is slidably connected with a sliding block (42), the outer surface of the sliding block (42) is fixedly connected with a screw rod (43), the outer surface of the screw rod (43) is sleeved with a balance block (44).

2. A wear resistant engine crankshaft as claimed in claim 1, wherein: The outer surface of the screw rod (43) is threadedly connected with a nut (45), the outer surface of the sliding block (42) is fixedly connected with a non-slip plate (46).

3. A wear resistant engine crankshaft as claimed in claim 2, wherein: The cross section of the groove (41) is T-shaped, and a gasket (47) is arranged between the nut (45) and the balance block (44).

4. The wear resistant engine crankshaft of claim 1, wherein: The wear-resistant protection mechanism (5) comprises first and second semicircular wear-resistant plates (51) and (52) symmetrically arranged on both sides of the connecting rod shaft neck (3), the inner wall of the first semicircular wear-resistant plate (51) is fixedly connected with a plurality of first connecting rods (53), the inner wall of the second semicircular wear-resistant plate (52) is fixedly connected with a plurality of second connecting rods (54), the outer surface of the first semicircular wear-resistant plate (51) is rotatably connected with a bolt (55) penetrating the first connecting rods (53) and the second connecting rods (54).

5. A wear resistant engine crankshaft as claimed in claim 4, wherein: The outer surface of the first semicircular wear-resistant plate (51) is provided with a countersunk hole (56) matched with the bolt (55), the outer surface of the connecting rod shaft neck (3) is provided with a through hole (57) matched with the first connecting rods (53) and the second connecting rods (54), and the outer surfaces of the first and second semicircular wear-resistant plates (51) and (52) are provided with wear-resistant layers.

6. A wear resistant engine crankshaft as claimed in claim 1, wherein: The outer surfaces of the cranks (2) on both sides are fixedly connected with end shafts (6).

Images