CN218953864U

CN218953864U - High-pressure oil pump roller capable of being used for engine

Info

Publication number: CN218953864U
Application number: CN202223354748.0U
Authority: CN
Inventors: 施明华; 祁晓辉; 占国春
Original assignee: Zhejiang Meihe Precision Technology Co ltd
Current assignee: Zhejiang Meihe Precision Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-02
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a high-pressure oil pump roller capable of being used for an engine, which comprises a roller, a key pin groove, a key block, a threaded column and an internal threaded jack, wherein the key pin groove corresponding to the key block is formed in one side of the roller, a cover plate is arranged at one end of the roller, the threaded column integrated with the cover plate is arranged at the bottom of the cover plate, an inverted trapezoid cylinder integrated with the threaded column is arranged at the bottom of the threaded column, one side of the key block is cut into an inclined plane corresponding to the inverted trapezoid cylinder, the internal threaded jack corresponding to the threaded column is formed in one end of the roller, and the hole pattern of the inner bottom of the internal threaded jack is consistent with that of the inverted trapezoid cylinder. The problem of current mode is pounded through the hammer utilizes the key to assemble roller and gear, leads to the wear degree big between key, roller and the gear is solved and is assembled roller and the difficult problem of dismouting between the gear through the key.

Description

High-pressure oil pump roller capable of being used for engine

Technical Field

The utility model relates to the technical field of oil pumps, in particular to a high-pressure oil pump roller which can be used for an engine.

Background

When the gear of the currently used gear type high-pressure oil pump is assembled with the roller, the key pin is generally assembled through the key pin, and during the assembly, personnel are required to embed and smash the key pin in a key groove between the roller and the gear, so that the roller and the gear are fixedly matched, but the unavoidable problem of the mode is that the abrasion between the roller and the gear is increased, and the disassembly is time-consuming.

The existing high-pressure oil pump roller has the following defects: there is no key pin assembly that can circumvent the conventional key pin assembly that results in greater wear between the rollers and the gears. To this end we propose a high pressure oil pump roller that can be used in an engine.

Disclosure of Invention

The utility model mainly aims to provide a high-pressure oil pump roller which can be used for an engine and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a high-pressure oil pump roller that can be used to engine, includes roller, key pin groove and key piece, still includes screw thread post and internal thread jack, the key pin groove that corresponds with the key piece has been seted up to roller one side, roller one end is equipped with the apron, the apron bottom is provided with the screw thread post with it is integrative, screw thread post bottom is provided with the trapezoidal cylinder that falls with it, the inclined plane that corresponds for the trapezoidal cylinder that falls with the cutting of key piece one side, the internal thread jack that corresponds with the screw thread post has been seted up to one end in the roller, the pass of the bottom is unanimous with trapezoidal cylinder in the internal thread jack.

Further, the internal thread insertion hole is in through connection with the key pin groove.

Further, the key block thickness is twice the key pin slot depth.

Further, corresponding threaded holes are formed in the periphery of the cover plate and one end of the roller.

Further, an inner hexagonal hole is formed in the cover plate and the threaded column in a penetrating mode.

Compared with the prior art, the utility model has the following beneficial effects: the assembly formed by the roller, the key pin groove, the key block, the threaded column and the internal thread jack is used for providing a roller structure convenient to assemble and disassemble for the gear of the gear oil pump, the assembly mode of the traditional hammer-type key pin is replaced, a key pin installation component capable of being assembled and disassembled in a threaded mode is provided between the roller and the gear, the inverted trapezoid cylinder body can push and press the inclined plane of the key block through the internal thread of the internal thread jack of the threaded column, so that the key block can be flexibly pushed out in the key pin groove, the gear clamping and fixing on the sleeved roller are realized, the problem that the roller and the gear are assembled in a hammer-type mode, and the abrasion degree among the key pin, the roller and the gear is large is solved, and the problem of difficulty in assembly and disassembly among the roller and the gear assembled through the key pin is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of a high pressure oil pump roller for an engine according to the present utility model.

Fig. 2 is a schematic view of an internal thread jack structure of a high-pressure oil pump roller for an engine according to the present utility model.

FIG. 3 is a schematic side view of a key block of a high pressure oil pump roller for an engine according to the present utility model.

In the figure: 1. a roller; 2. key pin grooves; 3. a key block; 4. an internal thread insertion hole; 5. a cover plate; 6. a threaded column; 7. an inverted trapezoidal cylinder; 8. a threaded hole; 9. and an inner hexagonal hole.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3, a high-pressure oil pump roller for an engine comprises a roller 1, a key pin groove 2, a key block 3, a threaded column 6 and an internal thread jack 4, wherein the key pin groove 2 corresponding to the key block 3 is formed in one side of the roller 1, a cover plate 5 is arranged at one end of the roller 1, the threaded column 6 integrated with the cover plate 5 is arranged at the bottom of the cover plate 5, an inverted trapezoid cylinder 7 integrated with the threaded column 6 is arranged at the bottom of the threaded column 6, an inclined plane corresponding to the inverted trapezoid cylinder 7 is cut on one side of the key block 3, the internal thread jack 4 corresponding to the threaded column 6 is formed in one end of the roller 1, the hole pattern at the inner bottom of the internal thread jack 4 is consistent with the inverted trapezoid cylinder 7, and the internal thread jack 4 is in through connection with the key pin groove 2.

Wherein the thickness of the key block 3 is twice the depth of the key pin groove 2; as shown in fig. 1-3, the key block 3 with a thickness thicker than that of the key pin groove 2 can be inserted into the key groove of the externally sleeved gear by the protruding part of the key block 3 when the inverted trapezoid cylinder 7 pushes the key block 3, so that the gear and the roller 1 are clamped and fixed.

Wherein, the periphery of the cover plate 5 and one end of the roller 1 are provided with corresponding threaded holes 8; as shown in fig. 2, the threaded holes 8 facilitate the rivet installation of the cover plate 5 with the roller 1 by personnel through bolts.

Wherein, the cover plate 5 and the threaded column 6 are internally provided with an inner hexagonal hole 9 in a penetrating way; as shown in fig. 2, the socket 9 facilitates the person twisting the cover plate 5 by means of a hexagonal wrench.

It should be noted that, the utility model is a high-pressure oil pump roller which can be used for an engine, during operation, personnel set up the keyway corresponding to the key block 3 on the inner side of the gear which is used for the gear oil pump and needs to be assembled with the roller 1, during assembly, personnel firstly set up the gear which is provided with the keyway on the roller 1, so that the keyway which is provided with the gear is aligned with the key block 3, then personnel insert the inverted trapezoid cylinder 7 into the internal thread jack 4, and based on the screw tightening between the threaded column 6 and the internal thread jack 4, the inverted trapezoid cylinder 7 is continuously pushed to the inner bottom of the internal thread jack 4, so that the key block 3 can be inserted into the keyway which is provided on the inner side of the gear, the roller 1 and the gear which needs to be assembled are clamped and fixed, after the threaded column 6 is completely screwed on the internal thread jack 4, the personnel sequentially fix the cover plate 5 and the roller 1 between the threaded column 8 through bolts, so that the threaded column 6 keeps the threaded hole 4 tightly inserted into the internal thread jack 4, the inverted trapezoid cylinder 7 can continuously push the key block 7 to the inner side of the gear, the key block 3 can be removed from the inner side of the gear, the key block can be removed from the gear 1, the cost of the conventional device can be reduced, and the cost of the device can be reduced.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-pressure oil pump roller that can be used to engine, includes roller (1), key groove (2) and key piece (3), its characterized in that still includes screw thread post (6) and internal thread jack (4), key groove (2) that corresponds with key piece (3) are seted up to roller (1) one side, roller (1) one end is equipped with apron (5), apron (5) bottom is provided with screw thread post (6) with it an organic whole, screw thread post (6) bottom is provided with trapezoidal cylinder (7) of falling with it an organic whole, the inclined plane that corresponds with trapezoidal cylinder (7) is cut to key piece (3) one side, internal thread jack (4) that corresponds with screw thread post (6) are seted up to one end in roller (1), the pass of internal thread jack (4) inner bottom is unanimous with trapezoidal cylinder (7).

2. A high pressure oil pump roller usable with an engine as set forth in claim 1, wherein: the internal thread insertion hole (4) is in through connection with the key pin groove (2).

3. A high pressure oil pump roller usable with an engine as set forth in claim 1, wherein: the thickness of the key block (3) is twice the depth of the key pin groove (2).

4. A high pressure oil pump roller usable with an engine as set forth in claim 1, wherein: corresponding threaded holes (8) are formed in the periphery of the cover plate (5) and one end of the roller (1).

5. A high pressure oil pump roller usable with an engine as set forth in claim 1, wherein: an inner hexagonal hole (9) is formed in the cover plate (5) and the threaded column (6) in a penetrating mode.