CN212527230U

CN212527230U - Engine seat ring repair tool

Info

Publication number: CN212527230U
Application number: CN202020607852.8U
Authority: CN
Inventors: 刘勇; 周虹宇; 江德明; 曹伟; 孙国峰; 代毫
Original assignee: Beijing Hyundai Motor Co Ltd
Current assignee: Beijing Hyundai Motor Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-02-12
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to a repair instrument of engine seat circle, repair the instrument and include automatic drive (1), transmission connecting piece (2) and abrasive disc (3), automatic drive (1) passes through transmission connecting piece (2) connect in abrasive disc (3) with the drive abrasive disc (3) rotate and can grind the seat circle. From this, engine seat circle's repair instrument that this disclosure provided can grind engine seat circle automatically, labour saving and time saving, reduction in production cost.

Description

Engine seat ring repair tool

Technical Field

The present disclosure relates to the field of grinding tools, and in particular, to a repair tool for an engine seat ring.

Background

The automobile engine is provided with an inlet valve and an exhaust valve, the two valves open and close an inlet channel and an exhaust channel at regular time according to the working requirements of the engine, and the seat ring is mainly used for sealing the engine valve and bears high-speed impact all the time, so that the seat ring is required to have high sealing performance. Generally, the seat ring is pressed on the cylinder cover firstly and then is finished to ensure that the seat ring has a qualified sealing surface, however, in the finishing process, the sealing surface of the seat ring is scratched due to cutter problems, at the moment, the engine cylinder cover is returned to a repair place, and the sealing surface of the seat ring is ground and repaired by using a repairing tool to eliminate scratches and achieve the required sealing performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a repair instrument of engine seat circle, this repair instrument of engine seat circle can grind the engine seat circle automatically, labour saving and time saving, reduction in production cost.

In order to achieve the above object, the present disclosure provides a repair tool for an engine seat ring, which includes an automatic driver, a transmission connector and a grinding disc, wherein the automatic driver is connected to the grinding disc through the transmission connector to drive the grinding disc to rotate so as to grind the seat ring.

Optionally, the automatic driver comprises a pivot shaft, the grinding disc is fixedly connected to the pivot shaft through the transmission connecting piece so as to rotate synchronously with the pivot shaft, and the pivot axis of the grinding disc is coincident with the central axis of the grinding disc.

Optionally, a first connection hole is formed in an end of the pivot shaft, an axis of the first connection hole coincides with a pivot axis of the pivot shaft, the transmission connection member includes a first connection rod and a second connection rod which are coaxially connected, the first connection rod is inserted into and fixed to the first connection hole, and the second connection rod is coaxially and fixedly connected to the grinding disc.

Optionally, the diameter of the second connecting rod is greater than that of the first connecting rod, a second connecting hole is formed in one end of the second connecting rod facing the grinding disc, a third connecting rod is formed on one end face of the second connecting rod facing the grinding disc, the third connecting rod is inserted into and fixed to the second connecting hole, wherein the axis of the second connecting hole coincides with the axis of the second connecting rod, and the axis of the third connecting rod coincides with the central axis of the grinding disc.

Optionally, the pivot shaft and the second connecting rod have the same outer diameter, and a reinforcing cylinder is sleeved outside the pivot shaft and the second connecting rod, and the reinforcing cylinder is fixedly connected to the pivot shaft or the second connecting rod.

Optionally, a first through hole extending in the radial direction is formed in the reinforcing cylinder, a second through hole extending in the radial direction is formed in the second connecting rod, a third through hole extending in the radial direction is formed in the third connecting rod, and a fixing member passes through the first through hole, the second through hole, and the third through hole to connect the grinding disc, the transmission connecting member, and the reinforcing cylinder.

Optionally, the automatic driver comprises a handle, a power device and the pivot shaft, the power device is partially accommodated in the handle, and one end of the pivot shaft extends into the handle to be connected with the power device.

Optionally, the end face of the grinding disc facing the seat ring is formed with a guide rod, the guide rod can be inserted into a valve guide corresponding to the seat ring, and the axis of the guide rod and the central axis of the grinding disc are collinear.

Optionally, the automated driver is a pneumatic grinding pen.

Through above-mentioned technical scheme, the automatic drive can the automatic drive abrasive disc rotate for the abrasive disc can grind the seat circle, and like this, just need not the manual abrasive disc that rotates, and convenient laborsaving, and compare with manual rotation, the automatic drive can realize the fast turn-round of abrasive disc, accomplishes grinding maintenance work as early as possible, reduces the time of grinding the maintenance. From this, engine seat circle's repair instrument that this disclosure provided can grind engine seat circle automatically, labour saving and time saving, reduction in production cost.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic illustration of a tool for reworking an engine seat ring provided in accordance with some embodiments of the present disclosure;

FIG. 2 is an enlarged cross-sectional view of portion A of FIG. 1;

FIG. 3 is a schematic view of an abrasive disk of a engine race rework tool provided in accordance with some embodiments of the present disclosure;

FIG. 4 is a schematic illustration, partially in section, of a drive connection of a tool for repairing an engine race provided in accordance with some embodiments of the present disclosure;

FIG. 5 is a cross-sectional view of a reinforcement cylinder of a repair tool for an engine seat ring provided in accordance with some embodiments of the present disclosure;

FIG. 6 is a schematic representation of the use of a rework tool for engine races provided in accordance with some embodiments of the present disclosure.

Description of the reference numerals

1-automatic drive, 11-pivot axis, 111-first connection hole, 12-handle, 13-power unit,

131-a switch, 2-a transmission connecting piece, 21-a first connecting rod, 22-a second connecting rod,

221-second connecting hole, 222-second through hole, 3-grinding disk, 31-third connecting rod,

311-third through hole, 32-guide rod, 4-reinforcing cylinder, 41-first through hole.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, "first, second, etc. are used herein only for distinguishing one element from another, and are not necessarily sequential or significant. In the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained.

According to some embodiments of the present disclosure, there is provided a repair tool for an engine seat ring, referring to fig. 1, the repair tool includes an automatic driver 1, a transmission connector 2 and a grinding disc 3, wherein the automatic driver 1 is connected to the grinding disc 3 through the transmission connector 2 to drive the grinding disc 3 to rotate so as to grind the seat ring.

Through above-mentioned technical scheme, automatic drive 1 can the rotation of automatic drive abrasive disc 3 for abrasive disc 3 can grind the seat circle, like this, just need not manual rotation abrasive disc 3, and is convenient laborsaving, and compares with manual rotation, and automatic drive 1 can realize the fast turn-round of abrasive disc 3, accomplishes grinding maintenance work as early as possible, reduces the time of grinding the maintenance. From this, engine seat circle's repair instrument that this disclosure provided can grind engine seat circle automatically, labour saving and time saving, reduction in production cost.

The inner conical surface of the engine seat ring is a sealing surface needing grinding and maintenance, and the outer peripheral surface of the grinding disc 3 is constructed into a conical surface so as to adapt to engine seat rings with different sizes and better match and grind the sealing surface of the engine seat ring.

According to some embodiments of the present disclosure, referring to fig. 1 and 2, the automatic drive 1 includes a pivot shaft 11, the grinding disc 3 is fixedly connected to the pivot shaft 11 through the transmission connection 2 to rotate synchronously with the pivot shaft 11, and the pivot axis of the grinding disc 3 coincides with the central axis thereof. Like this, just can control the rotation of pivotal axis 11 through operation automatic drive 1, and then control abrasive disc 3's rotation, realize the grinding maintenance to the seat circle, abrasive disc 3's pivot axis and its the central axis coincidence moreover to realize abrasive disc 3 around the central axis rotation of self, stability when improving the rotation, and avoid taking place eccentric rotation and influence the grinding effect to the engine seat circle.

The transmission link 2 may be configured in various ways to coaxially and fixedly connect the pivot shaft 11 and the grinding disc 3 together, and in some embodiments of the present disclosure, as shown in fig. 2 to 4, an end of the pivot shaft 11 is formed with a first connection hole 111, an axis of the first connection hole 111 coincides with a pivot axis of the pivot shaft 11, the transmission link 2 includes a first connection rod 21 and a second connection rod 22 coaxially connected, the first connection rod 21 is inserted and fixed in the first connection hole 111, and the second connection rod 22 is coaxially and fixedly connected with the grinding disc 3. Like this, first connecting rod 21 inserts and fixes to in the first connecting hole 111 coaxial with the pivot axis of pivotal axis 11 for the axis of first connecting rod 21 coincides with the pivot axis of pivotal axis 11, and then makes first connecting rod 21 can be along with pivotal axis 11 synchronous revolution around self axis, and the coaxial coupling of second connecting rod 22 with first connecting rod 21 coaxial coupling with abrasive disc 3, can make the pivot axis of abrasive disc 3 coincide with the central axis of self, and then realizes that abrasive disc 3 rotates around self central axis, so as to be favorable to grinding the engine seat circle. Among them, there are various ways of fixedly connecting the first connecting rod 21 and the first connecting hole 111, for example, a through hole extending in the radial direction of the first connecting rod 21, a through hole extending in the radial direction and passing through the first connecting hole 111 formed on the pivot 11, and a fixing member, such as a positioning pin, passing through the two through holes to fixedly connect the first connecting rod 21 and the second connecting hole 111; for another example, a clamping groove is formed on the outer circumferential surface of the first connecting rod 21, an elastic buckle is formed in the first connecting hole 111, and when the first connecting rod 21 is inserted into the first connecting hole 111, the elastic buckle can automatically extend into the clamping groove, thereby realizing the mutual clamping of the first connecting rod 21 and the first connecting hole 111; these are all readily achievable by one skilled in the art and the specific disclosure is not limiting.

There are various ways of fixedly connecting the second connecting rod 22 and the grinding disc 3 coaxially, according to some embodiments of the present disclosure, referring to fig. 2 to 4, the diameter of the second connecting rod 22 is larger than that of the first connecting rod 21, a second connecting hole 221 is formed on one end of the second connecting rod 22 facing the grinding disc 3, a third connecting rod 31 is formed on one end surface of the grinding disc 3 facing the second connecting rod 22, the third connecting rod 31 is inserted and fixed in the second connecting hole 221, wherein the axis of the second connecting hole 221 coincides with the axis of the second connecting rod 22, and the axis of the third connecting rod 31 coincides with the central axis of the grinding disc 3. In this way, a coaxial fixed connection of the second connecting rod to the grinding disk 3 is achieved. In addition, through the design of the diameter and the length of the first connecting rod 21 and the second connecting rod 22, the grinding disc 3 and the pivot shaft 11 are kept at a proper distance in the axial direction, so that when the grinding disc 3 grinds the engine race, the pivot shaft 11 or other parts of the automatic driver 1 are prevented from influencing the observation visual lines of the grinding disc 3 and the engine race, and the engine race can be ground more accurately and quickly. The connection manner of the third connecting rod 31 and the second connecting hole 221 may be the same as or different from the connection manner of the first connecting rod 21 and the first connecting hole 111, and the disclosure is not limited thereto.

According to some embodiments of the present disclosure, referring to fig. 2 to 5, the pivot shaft 11 and the second connecting rod 22 have the same outer diameter, and the reinforcing cylinder 4 is sleeved outside the pivot shaft 11 and the second connecting rod 22, and the reinforcing cylinder 4 is fixedly connected to the pivot shaft 11 or the second connecting rod 22. Therefore, the first connecting rod 21, the second connecting rod 22, the reinforcing cylinder 4 and the pivot shaft 11 rotate synchronously, the reinforcing cylinder 4 can reinforce the side wall of the second connecting rod 22, and can also reinforce the connection between the first connecting rod 21 and the pivot shaft 11, so that the cracking of the side wall of the second connecting rod 22 corresponding to the second connecting hole 221 and the cracking possibility of the first connecting rod 21 caused by the radial shear force applied to the first connecting rod 21 by the end part of the pivot shaft 11 are avoided or reduced, and the structural reliability and stability are improved.

Alternatively, as shown in fig. 2 to 5, the reinforcing cylinder 4 is formed with a first through hole 41 extending in the radial direction, the second connecting rod 22 is formed with a second through hole 222 extending in the radial direction, the third connecting rod 31 is formed with a third through hole 311 extending in the radial direction, and the fixing member passes through the first through hole 41, the second through hole 222 and the third through hole 311 to connect the grinding disc 3, the drive connection member 2 and the reinforcing cylinder 4. Thus, the fixed connection of the grinding disc 3 and the transmission connecting piece 2 and the fixed connection of the reinforcing cylinder 4 and the transmission connecting piece 2 are realized simultaneously through one fixing piece, the structure is simplified, and the assembly is convenient. In order to reduce stress concentration and improve connection firmness, the number of the first through holes 41, the second through holes 222 and the third through holes 311 may be multiple and are distributed at intervals in the axial direction.

According to some embodiments of the present disclosure, referring to fig. 1 and 6, the automatic driver 1 may include a handle 12, a power unit 13, and a pivot shaft 11, the power unit 13 being partially received in the handle 12, and one end of the pivot shaft 11 extending into the handle 12 to be connected with the power unit 13. Thus, when in use, an operator can hold or adjust the position of the grinding disc 3 connected with the pivot shaft 11 by holding the handle 12, and after the grinding disc 3 corresponds to the engine seat ring, the power device 13 is opened to rotate the grinding disc 3 so as to grind the engine seat ring. The switch 131 for controlling the power device 13 to be turned on or off may be disposed on the handle, or may be disposed on the power device 13, which is not limited in the present disclosure. The power device 13 may be an electric power source, a pneumatic power source, etc., and the disclosure is not limited thereto.

In order to facilitate maintaining the relative position between the grinding disc 3 and the engine seat ring, in some embodiments of the present disclosure, as shown with reference to fig. 1, 3 and 6, a guide rod 32 is formed on an end surface of the grinding disc 3 facing the seat ring, the guide rod 32 being insertable into a valve guide corresponding to the seat ring, an axis of the guide rod 32 and a central axis of the grinding disc 3 being collinear. In this way, the guide rod 32 is accommodated in the valve guide, and the guide rod 32 can define and maintain the relative position of the grinding disc 3 and the seat ring in the radial direction of the grinding disc 3, which is favorable for achieving better grinding effect.

According to one embodiment of the present disclosure, the automated driver 1 may be a pneumatic grinding pen. The pneumatic grinding pen is a common grinding tool in the market, and is provided with an output shaft and a grinding head connected to the output shaft, and the grinding head is detachably connected to the output shaft. When the pneumatic grinding pen is used as the automatic driver 1, the output shaft thereof corresponds to the pivot shaft 11 described above, and the grinding head of the pneumatic grinding pen is detached and the transmission connecting member 2 of the present disclosure is connected thereto. The skilled person can adaptively design the transmission connector 2 according to the specific configuration of the output shaft, and the present disclosure is not limited thereto, which is easily realized by the skilled person, and will not be described herein.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a repair instrument of engine seat circle, characterized in that, repair instrument includes automatic drive (1), transmission connecting piece (2) and abrasive disc (3), automatic drive (1) through transmission connecting piece (2) connect in abrasive disc (3) to the drive abrasive disc (3) rotate and can grind the seat circle.

2. The engine race rework tool of claim 1, characterized in that the automatic drive (1) comprises a pivot shaft (11), the grinding disc (3) being fixedly connected to the pivot shaft (11) by the transmission connection (2) to rotate synchronously with the pivot shaft (11), and the pivot axis of the grinding disc (3) coinciding with its central axis.

3. The engine race rework tool according to claim 2, characterized in that an end of the pivot shaft (11) is formed with a first connection hole (111), an axis of the first connection hole (111) coinciding with a pivot axis of the pivot shaft (11), the transmission link (2) includes a first connection rod (21) and a second connection rod (22) coaxially connected, the first connection rod (21) being inserted and fixed in the first connection hole (111), the second connection rod (22) being coaxially fixed to the grinding disc (3).

4. The engine race rework tool according to claim 3, characterized in that the second connecting rod (22) has a larger diameter than the first connecting rod (21), a second connection hole (221) is formed on an end of the second connecting rod (22) facing the grinding disc (3), a third connecting rod (31) is formed on an end surface of the grinding disc (3) facing the second connecting rod (22), the third connecting rod (31) is inserted into and fixed to the second connection hole (221),

wherein the axis of the second connecting hole (221) coincides with the axis of the second connecting rod (22), and the axis of the third connecting rod (31) coincides with the central axis of the grinding disc (3).

5. The engine race repair tool according to claim 4, characterized in that the pivot shaft (11) and the second connecting rod (22) have the same outer diameter, a reinforcing cylinder (4) is sleeved outside the pivot shaft (11) and the second connecting rod (22), and the reinforcing cylinder (4) is fixedly connected to the pivot shaft (11) or the second connecting rod (22).

6. The engine race rework tool according to claim 5, characterized in that a first through hole (41) extending in a radial direction is formed in the reinforcement cylinder (4), a second through hole (222) extending in a radial direction is formed in the second connecting rod (22), a third through hole (311) extending in a radial direction is formed in the third connecting rod (31), and a fixing member is passed through the first through hole (41), the second through hole (222), and the third through hole (311) to connect the grinding disc (3), the drive connection member (2), and the reinforcement cylinder (4).

7. The engine race repair tool according to claim 2, characterized in that the automatic driver (1) comprises a handle (12), a power unit (13) and the pivot shaft (11), the power unit (13) being partially accommodated in the handle (12), one end of the pivot shaft (11) extending into the handle (12) to be connected with the power unit (13).

8. The engine seat ring repair tool according to claim 1, characterized in that a guide rod (32) is formed on an end surface of the grinding disc (3) facing the seat ring, the guide rod (32) being insertable into a valve guide corresponding to the seat ring, an axis of the guide rod (32) and a central axis of the grinding disc (3) being collinear.

9. The engine seat ring rework tool according to any of the claims 1-8 characterized in that the automatic driver (1) is a pneumatic grinding pen.