CN213088532U

CN213088532U - Front main bearing cover for forklift engine crankshaft

Info

Publication number: CN213088532U
Application number: CN202021754047.4U
Authority: CN
Inventors: 孟志兰
Original assignee: Hangzhou Songlin Crankshaft Manufacturing Co ltd
Current assignee: Hangzhou Songlin Crankshaft Manufacturing Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-04-30
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses a front main bearing cover for a forklift engine crankshaft, which includes a top convex block, a top arc surface, a half arc ring, an inner ring surface, an inner angle groove, a bottom fixed end, a fixed end side groove, a screw channel, Fit the groove and the bottom end hole, the bottom side of the top bump is fixed with a top arc surface, and the left and right sides of the top arc surface are provided with side arc slopes, the outer ends of the side arc slopes are fixed with side planes, and The upper surface of the side plane is provided with an upper end hole, the inside of the side arc is provided with a screw channel, and the bottom end of the screw channel is connected with a bottom end hole, and the inner surface of the inner ring surface is provided with a fitting groove. It is provided with a top convex block and a top arc surface, which can pass through the side arc slope and the top arc surface, so that it can provide support when it is in contact with the upper component. And it can protect the outer side of the shaft body through the outer structure, and at the same time prevent the wearing parts such as the rolling body cage from being damaged by external force to a certain extent.

Description

Front main bearing cover for forklift engine crankshaft

Technical Field

The utility model relates to a machine part technical field specifically is a front main bearing cover for forklift engine crankshaft.

Background

Because different bearing covers can be selected for one bearing, and different types of bearings can be selected for one bearing cover at the same time, the bearing cover has a plurality of varieties. The bearing cap is recorded fast, easy and excellent, and many large bearing companies abroad also have own bearing cap types. But the same bearing cap model is not marked identically in different company samples. For different application occasions of the standard bearing cover, the bearing cover made of different materials can be selected, such as grey cast iron, nodular cast iron, cast steel, stainless steel and plastic special bearing cover.

In the preceding main bearing cap use on the market, foreign matters such as dust invade the raceway of rolling element, and the leakproofness leads to inside emollient to spill over easily not, and the contact surface outside receives external force easily and makes the part produce the damage, is not convenient for aim at the problem of fixed position during the installation, for this, we provide the higher preceding main bearing cap of practicality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a front main bearing cap for forklift engine crankshaft to solve the raceway that foreign matters such as the dust that proposes among the above-mentioned background invade the rolling element, the leakproofness leads to inside emollient not good easily to spill over, and the contact surface outside receives external force easily and makes the part produce the damage, is not convenient for aim at the problem of fixed position during the installation.

In order to achieve the above object, the utility model provides a following technical scheme: a front main bearing cover for a forklift engine crankshaft comprises a top end lug, a top end arc surface, a side arc slope, a side plane, an upper end hole, a side body surface, a side radian, a positioning circular groove, a semi-arc ring, an inner ring surface, an inner corner groove, a bottom fixed end, a fixed end side groove, a screw rod groove channel, a matching groove and a bottom end hole, wherein the bottom side surface of the top end lug is fixed with the top end arc surface, the left side and the right side of the top end arc surface are respectively provided with the side arc slope, the outer side tail end of the side arc slope is fixed with the side plane, the upper end hole is arranged on the upper surface of the side plane, the front side and the back side of the top end arc surface are respectively provided with the side body surface, the left end and the right end of the side body surface are respectively provided with the side radians, the side surface of the side radians is provided with the positioning circular groove, the lower side surface of the side body surface is fixed with the semi-arc ring, the inner ring surface is arranged on the, and the outer side surface of the bottom fixed end is provided with a fixed end side groove, a screw rod channel is arranged in the side radian, the bottom end of the screw rod channel is connected with a bottom end hole, and the inner side surface of the inner ring surface is provided with a fit groove.

Preferably, be welded connection between top lug and the top cambered surface, and be fixed connection between side arc slope and the top cambered surface to the contained angle that the side of top lug formed is 60.

Preferably, the side plane is fixedly connected with the upper end hole, and the upper end hole is symmetrical about the vertical center line of the top end bump.

Preferably, the diameter of the arc of the side radian is mm, and the positioning circular groove penetrates through the outer surface of the side radian.

Preferably, the inner ring surface is matched with the inner corner groove in shape size, the inner ring surface is fixedly connected with the inner corner groove, and a communicating structure is formed between the bottom fixed end and the fixed end side groove.

Preferably, the fit groove penetrates through the inner surface of the inner ring surface, and a communication structure is formed between the screw rod channel and the bottom end hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the front main bearing cover for the forklift engine crankshaft is provided with a top end convex block and a top end cambered surface, can be contacted and fixed with an upper end assembly through a side cambered slope and the top end cambered surface to provide support, can surround the outer side of a shaft body through an outer side structure to play a role in protection, and simultaneously prevents vulnerable parts such as a rolling body retainer and the like from being damaged under the action of external force to a certain extent;

the front main bearing cover for the crankshaft of the forklift engine is provided with a side plane and an upper end hole, the side plane and the upper end hole can be gradually reduced outwards through the inner side aperture and the upper end aperture, the end cover can also be used as an installation fixing component of a whole engine rotating shaft to conveniently correct the placement position of a gasket during installation, the positioning circular groove and the side radian can be used for conveniently positioning and fixing the whole body during production through the side hole groove so as to facilitate measurement, the support can be conveniently fixed and clamped during installation to avoid the contact of a support, and foreign matters such as dust and the like are prevented from invading a roller path of a rolling body;

this forklift engine crankshaft is with preceding main bearing lid is provided with interior anchor ring and interior angle groove, can pass through interior anchor ring and interior angle groove, let its space that can make in the end cover increase slightly contact with the axis body, and the equal higher centripetal force that can increase the axis body when rotating of concentricity and processingquality of tang makes fixed more stable, can agree with groove and interior anchor ring through agreeing with, let it agree with fixedly so that confirm the mounted position through bottom end groove and lower extreme fixed part in fixed, and can promote whole degree of agreeing with and guarantee that lubricant grease only plays a role to rolling element and raceway and does not spill over.

Drawings

FIG. 1 is a schematic view of the front three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the partial cross-sectional structure of the present invention;

fig. 3 is a schematic view of the bottom plane structure of the present invention.

In the figure: 1. a top end bump; 2. a top end cambered surface; 3. side arc slope; 4. a side plane; 5. an upper end hole; 6. a lateral surface; 7. side radian; 8. positioning the circular groove; 9. a half-arc ring; 10. an inner ring surface; 11. an inner corner groove; 12. a bottom fixing end; 13. a fixed end side groove; 14. a screw channel; 15. a fitting groove; 16. a bottom end hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a front main bearing cover for a forklift engine crankshaft comprises a top end convex block 1, a top end cambered surface 2, a side arc slope 3, a side plane 4, an upper end hole 5, a side body surface 6, a side radian 7, a positioning circular groove 8, a semi-arc ring 9, an inner ring surface 10, an inner corner groove 11, a bottom fixed end 12, a fixed end side groove 13, a screw rod groove channel 14, a fit groove 15 and a bottom end hole 16, wherein the bottom side surface of the top end convex block 1 is fixedly provided with the top end cambered surface 2, the left side and the right side of the top end cambered surface 2 are respectively provided with the side arc slope 3, the outer end of the side arc slope 3 is fixedly provided with the side plane 4, the upper end hole 5 is formed on the upper surface of the side plane 4, the top end convex block 1 is in welding connection with the top end cambered surface 2, the side arc slope 3 is fixedly connected with the top end cambered surface 2, an included angle formed by the side edge of the top end convex block 1 is 60 degrees, the top end convex block 1, the rolling body retainer is in contact fixation with the upper end assembly to provide support, can surround the outer side of the shaft body through the outer side structure to play a role in protection, and simultaneously prevents easily damaged parts such as the rolling body retainer and the like from being damaged under the action of external force to a certain extent;

the front side and the rear side of the top end cambered surface 2 are both provided with side body surfaces 6, the left end and the right end of each side body surface 6 are both provided with side radians 7, each side plane 4 is fixedly connected with the upper end hole 5, the upper end holes 5 are symmetrical about the vertical central line of the top end lug 1, each side plane 4 and each upper end hole 5 are arranged, the side planes 4 and the upper end holes 5 can be gradually reduced outwards through the upper end hole diameter and the inner side hole diameter, and the end cover can be used as an installation fixing component of a whole engine rotating shaft to conveniently correct the placement position of a gasket during installation; a positioning circular groove 8 is formed in the side surface of the side radian 7, a semi-arc ring 9 is fixed on the lower side surface of the side body surface 6, the arc diameter of the side radian 7 is 29mm, the positioning circular groove 8 penetrates through the outer surface of the side radian 7, the positioning circular groove 8 and the side radian 7 are arranged, and the positioning circular groove 8 and the side radian 7 can be used for conveniently positioning and fixing the whole body during production through a side hole groove so as to facilitate measurement, conveniently fixing and clamping during installation, avoiding bracket contact and preventing dust and other foreign matters from invading a roller path of the rolling body;

the inner ring surface 10 is arranged on the bottom end surface of the side body surface 6, an inner angle groove 11 is fixed at the bottom end of the inner ring surface 10, the bottom end of the side radian 7 is connected with a bottom fixed end 12, a fixed end side groove 13 is arranged on the outer side surface of the bottom fixed end 12, the outer shape size of the inner ring surface 10 is matched with that of the inner angle groove 11, the inner ring surface 10 is fixedly connected with the inner angle groove 11, a communicating structure is formed between the bottom fixed end 12 and the fixed end side groove 13, the inner ring surface 10 and the inner angle groove 11 are arranged, the space in the end cover can be slightly increased to be in contact with a shaft body through the inner ring surface 10 and the inner angle groove 11, the concentricity of the spigot and the machining quality are high, and the centripetal force of the shaft body can be increased during rotation so that the; the inside of side radian 7 is provided with screw rod channel 14, and the bottom antithetical couplet of screw rod channel 14 has bottom hole 16, the inboard surface of interior anchor ring 10 is provided with agrees with groove 15, agree with groove 15 and run through in the internal surface of interior anchor ring 10, and constitute the connectivity between screw rod channel 14 and the bottom hole 16, be provided with and agree with groove 15 and interior anchor ring 10, can pass through and agree with groove 15 and interior anchor ring 10, let it agree with fixedly so that confirm the mounted position through bottom groove and lower extreme fixed part in fixed, and can promote whole degree of agreeing with and guarantee that lubricant grease only acts on rolling element and raceway and do not spill over.

The working principle is as follows: for the front main bearing cap, firstly, the side surface is cut according to the included angle formed by the rear side edge of a top end lug 1, the front end edge is polished to be processed by circular arc, the surface of a top end cambered surface 2 has a certain radian, a side arc slope 3 is symmetrically notched inwards relative to the middle, an upper end hole 5 on a side plane 4 is punched by a drill to position a drilling position, then the drill is drilled downwards by the drill, the edge of the hole is processed by circular arc, the radians 7 on two sides of a side body surface 6 are symmetrical, a shallower slotted hole is drilled along a vertical central line positioning circular groove 8 on the surface, the radians of the inner sides of inner ring surfaces 10 of semi-arc rings 9 are the same, an inner corner groove 11 is fixed with a lower end part to be matched, the sealing performance is improved, the inner side surface of a fixed end side groove 13 on the side surface of a bottom fixed end 12 is flush with the outermost side of the upper end side radian 7, the diameters of a screw rod groove 14, the upper end hole 5 and a bottom, the other half is positioned on the cambered surface of the inner ring surface 10, so that the whole using process of the front main bearing cap is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a front main bearing cover for forklift engine crankshaft, includes top lug (1) and interior anchor ring (10), its characterized in that: a top end cambered surface (2) is fixed on the bottom side surface of the top end convex block (1), side cambered surfaces (3) are arranged on the left side and the right side of the top end cambered surface (2), side planes (4) are fixed on the outer side tail ends of the side cambered surfaces (3), an upper end hole (5) is formed in the upper surface of each side plane (4), side body surfaces (6) are arranged on the front side and the rear side of each top end cambered surface (2), side radians (7) are arranged at the left end and the right end of each side body surface (6), positioning circular grooves (8) are formed in the side surfaces of the side radians (7), semi-arc rings (9) are fixed on the lower side surfaces of the side body surfaces (6), an inner ring surface (10) is arranged on the bottom end surface of each side body surface (6), an inner corner groove (11) is fixed at the bottom end of the inner ring surface (10), a bottom end of each side radian (7) is connected with a bottom fixed end (12), and a fixed end side groove, the inner part of the side radian (7) is provided with a screw rod channel (14), the bottom end of the screw rod channel (14) is connected with a bottom end hole (16), and the inner side surface of the inner ring surface (10) is provided with a fit groove (15).

2. The front main bearing cover for the crankshaft of the forklift engine according to claim 1, characterized in that: be welded connection between top lug (1) and top cambered surface (2), and be fixed connection between side arc slope (3) and top cambered surface (2) to the contained angle that the side of top lug (1) formed is 60.

3. The front main bearing cover for the crankshaft of the forklift engine according to claim 1, characterized in that: the side plane (4) is fixedly connected with the upper end hole (5), and the upper end hole (5) is symmetrical about the vertical center line of the top end bump (1).

4. The front main bearing cover for the crankshaft of the forklift engine according to claim 1, characterized in that: the diameter of the arc of the side radian (7) is 29mm, and the positioning circular groove (8) penetrates through the outer surface of the side radian (7).

5. The front main bearing cover for the crankshaft of the forklift engine according to claim 1, characterized in that: the inner ring surface (10) is matched with the shape size of the inner corner groove (11), the inner ring surface (10) is fixedly connected with the inner corner groove (11), and a communicating structure is formed between the bottom fixed end (12) and the fixed end side groove (13).

6. The front main bearing cover for the crankshaft of the forklift engine according to claim 1, characterized in that: the fit groove (15) penetrates through the inner surface of the inner ring surface (10), and a communicating structure is formed between the screw rod channel (14) and the bottom end hole (16).