CN220029677U

CN220029677U - Movable coping device of cylinder head disk seat

Info

Publication number: CN220029677U
Application number: CN202320801134.8U
Authority: CN
Inventors: 孙会贞; 李军
Original assignee: China Huaye Group Co Ltd
Current assignee: China Huaye Group Co Ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-11-17
Anticipated expiration: 2033-04-12

Abstract

The utility model provides a movable coping device for a cylinder head valve seat, which comprises a fixed screw rod assembly, an up-down moving rod assembly, a horizontal moving platform assembly and a coping tool, wherein the fixed screw rod assembly is arranged on the fixed screw rod assembly; wherein the fixed screw assembly is arranged at the center of the valve seat; the bottom end of the up-down moving rod assembly is fixedly connected to the fixed screw assembly; the up-down moving rod assembly vertically penetrates through the horizontal moving platform assembly; the horizontal moving platform assembly clamps and fixes the grinding tool. The movable coping device for the cylinder head valve seat is adopted to avoid the problem of lower coping precision caused by manual coping, realizes up-and-down horizontal movement and 360-degree rotation of the coping tool, has controllable rotating speed, can effectively improve coping precision and coping efficiency, and reduces construction cost.

Description

Movable coping device of cylinder head disk seat

Technical Field

The utility model relates to the technical field of diesel engine cylinder head valve seat grinding, in particular to a movable cylinder head valve seat grinding device.

Background

The valve seat is a detachable surface part in the valve and is used for supporting the full-closing position of the valve core and forming a sealing pair.

The valve seat of the cylinder head intake and exhaust valve of the middle and small diesel engine is easy to form carbon deposit and pit in the long-term use process, so that the working performance of the unit is reduced due to the fact that the valve is not tightly sealed, and the unit is stopped when serious, so that the valve seat needs to be inspected and polished regularly.

Because of special construction sites, the cylinder heads are large and numerous, the external repair is difficult, and a site maintenance mode is generally adopted; the valve seat is polished manually, a small-sized polishing machine is used for polishing manually, the construction requirement is high, an operator is required to have a skilled technology and rich experience, the manual polishing is time-consuming and labor-consuming, the machining precision is not easy to control, the machining time is long, and the working efficiency is low.

In order to solve the field maintenance problem, a small movable valve seat polishing device is needed, tools are small and exquisite, the device is convenient to carry and maintain on site, the device can move up and down and horizontally and rotate, the polishing precision is controlled, the polishing efficiency is improved, and the construction cost is reduced.

Disclosure of Invention

In view of the above problems, the utility model aims to provide a movable coping device for a cylinder head valve seat, so as to avoid the problem of lower coping precision caused by manual coping, improve coping efficiency and reduce construction cost.

The utility model provides a cylinder head valve seat movable polishing device which comprises a fixed screw rod assembly, an up-down moving rod assembly, a horizontal moving platform assembly and a polishing tool, wherein the fixed screw rod assembly is arranged on the fixed screw rod assembly; wherein,

the fixed screw assembly is arranged at the center of the valve seat;

the bottom end of the up-down moving rod assembly is fixedly connected to the fixed screw assembly;

the up-down moving rod assembly vertically penetrates through the horizontal moving platform assembly;

the horizontal moving platform assembly clamps and fixes the grinding tool.

Further, it is preferable that the fixing screw assembly includes a long screw and a nut matched with the long screw; and a fixing screw hole is formed in the top cover of the long screw rod.

In addition, the preferred structure is that the up-down moving rod assembly comprises a screw rod, an adjusting sleeve provided with internal and external threads, a sliding sleeve, a guide sleeve and a locking bolt;

the two ends of the screw are threaded sections, and the middle part of the screw is a non-threaded section; the threaded section at the bottom end of the screw rod is in threaded connection with the fixed screw hole; the threaded section at the upper end of the screw rod is in threaded connection with the adjusting sleeve;

the inner diameter of the upper end of the sliding sleeve is smaller than the inner diameter of the lower end of the sliding sleeve; an internal thread is arranged at the upper end of the sliding sleeve;

the sliding sleeve is in threaded connection with the external thread of the adjusting sleeve;

one end of the guide sleeve is inserted into the inner part of one end with larger inner diameter of the sliding sleeve and is fixedly connected with the sliding sleeve;

the locking bolt is screwed into the adjusting sleeve from the top end of the adjusting sleeve.

In addition, it is preferable that a fastener is provided around a portion of the screw where no thread is provided, and two flat surfaces are provided at opposite positions of the fastener.

Further, it is preferable that a convex portion is provided at a lower end of the adjustment sleeve; the diameter of the protruding portion is smaller than the inner diameter of the lower end of the sliding sleeve and larger than the inner diameter of the upper end of the sliding sleeve.

Furthermore, it is preferred that the diameter of the unthreaded section of the screw is greater than the diameter of the threaded section.

Furthermore, it is preferable that a lock nut is further provided on the adjustment sleeve.

In addition, the horizontal moving platform assembly comprises a platform fixing frame, a polishing tool fixing frame, a movable connecting assembly for connecting the platform fixing frame and the polishing tool fixing frame, and an adjusting bolt;

one end of the platform fixing frame is provided with a fixing hole of the up-down moving rod assembly; an adjusting plate is arranged at the other end of the platform fixing frame; an adjusting screw hole is formed in the adjusting plate; the adjusting bolt is arranged in the adjusting screw hole in a penetrating way;

a grinding tool fixing hole is formed in one end of the grinding tool fixing frame; an adjusting groove is formed in the side edge, close to the adjusting plate, of the grinding tool fixing frame; the end part of the adjusting bolt is clamped in the adjusting groove;

the side of the platform fixing frame is movably connected with one end, far away from the grinding tool fixing hole, of the grinding tool fixing frame through the movable connecting component.

In addition, the movable connecting component preferably comprises a slideway, a sliding plate and a connecting plate;

the slideway is arranged on the side edge of the platform fixing frame;

the sliding plate is in sliding connection with the slideway;

the connecting plates are respectively connected with the sliding plate and one end, far away from the grinding tool fixing hole, of the grinding tool fixing frame.

In addition, it is preferable that the up-down moving rod assembly fixing hole and the grinding tool fixing hole are adjustable holes.

As can be seen from the above description, the cylinder head valve seat movable polishing device provided by the utility model has the following beneficial effects:

1. the device is small and exquisite, portable, can be used for on-site maintenance and convenient to operate, and effectively improves the construction efficiency;

2. the device can realize the up-and-down, horizontal movement and 360-degree rotation of the grinding tool, the rotating speed is controllable, and the grinding precision can be effectively improved;

3. the grinding tool can be replaced according to actual needs, and only the grinding head of the grinding tool can be replaced, so that cost investment is reduced.

Drawings

Other objects and results of the present utility model will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the utility model.

In the drawings:

fig. 1 is a schematic structural view of a cylinder head valve seat movable coping apparatus according to an embodiment of the utility model;

FIG. 2 is a schematic view of a set screw assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an up and down moving bar assembly according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a horizontal moving platform assembly according to an embodiment of the present utility model.

In the drawings, 1-a set screw assembly; 11-long screw; 111-fixing screw holes; 12-nut; 2-moving up and down a rod assembly; 21-a screw; 22-adjusting sleeve; 23-sliding sleeve; 24-guiding sleeve; 25-locking bolts; 26-locking nut; 3-a horizontal movement platform assembly; 31-a platform mount; 311-fixing holes of the up-down moving rod assembly; 32-a grinding tool fixing frame; 321-grinding a tool fixing hole; 322-adjusting the groove; 33-a movable connection assembly; 331-a slideway; 332-a sliding plate; 333-connecting plates; 34-adjusting bolts; 35-adjusting plate; 351-adjusting screw holes; 4-grinding tools; 5-connecting bolts.

The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a cylinder head valve seat movable coping apparatus according to an embodiment of the utility model; FIG. 2 is a schematic view of a set screw assembly according to an embodiment of the present utility model; FIG. 3 is a schematic view of an up and down moving bar assembly according to an embodiment of the present utility model; fig. 4 is a schematic structural view of a horizontal moving platform assembly according to an embodiment of the present utility model.

As shown in fig. 1 to 4 together, the cylinder head valve seat movable polishing device provided by the utility model mainly comprises a fixed screw rod assembly 1, an up-down moving rod assembly 2, a horizontal moving platform assembly 3 and a polishing tool 4.

The fixed screw assembly 1 is arranged at the center of the valve seat and is used for fixing the up-down moving rod assembly 2 so that the up-down moving rod assembly cannot move at will, and the polishing precision is ensured.

The bottom end of the up-down moving rod assembly 2 is fixedly connected to the fixed screw assembly 1, and the up-down moving rod assembly 2 vertically penetrates through the horizontal moving platform assembly 3; the up-and-down moving rod assembly 2 can drive the horizontal moving platform assembly 3 to move up and down.

The horizontal moving platform assembly 3 clamps and fixes the grinding tool 4, so that the grinding tool 4 can move and rotate in the horizontal direction.

In one embodiment of the present utility model, the set screw assembly 1 includes a long screw 11 and a nut 12 mated with the long screw 11; the long screw 11 vertically penetrates through a through hole in the center of the valve seat and is matched and fixed by a nut 12; a fixing screw hole 111 is formed in the top cover of the long screw 11, and the bottom end of the up-down moving rod assembly 2 is fixedly connected with the fixing screw hole 111.

In one embodiment of the present utility model, the up-and-down moving rod assembly 2 includes a screw 21, an adjusting sleeve 22 provided with internal and external threads, a sliding sleeve 23, a guide sleeve 24, and a locking bolt 25.

The two ends of the screw rod 21 are provided with threaded sections, and the middle part of the screw rod 21 is provided with a non-threaded section; the threaded section at the bottom end of the screw rod 21 is in threaded connection with the fixing screw hole 111 and is used for fixing the up-and-down moving rod assembly 2, so that the position of the device can be fixed to ensure the grinding precision; the threaded section at the upper end of the screw 21 is in threaded connection with the adjusting sleeve 22, the up-and-down movement of the grinding tool 4 is realized by adjusting the position of the adjusting sleeve 22 at the threaded section at the upper end of the screw 21, and the lower end of the adjusting sleeve 22 is also provided with a convex part; wherein, the diameter of unthreaded section is greater than the diameter of threaded section, can block the threaded section of adjusting sleeve 22 upper end, prevents adjusting sleeve 22 gliding to unthreaded section, influences the coping process.

The inner diameter of the upper end of the sliding sleeve 23 is smaller than that of the lower end of the sliding sleeve 23, so that the junction of the upper end and the lower end of the sliding sleeve 23 can be clamped on the convex part of the lower end of the adjusting sleeve 22, the screw 21 is ensured not to deflect, and the diameter of the convex part is smaller than that of the lower end of the sliding sleeve 23 and larger than that of the upper end of the sliding sleeve 23; the upper end of the sliding sleeve 23 is provided with an internal thread, the internal thread of the sliding sleeve 23 is in threaded connection with the external thread of the adjusting sleeve 22, the up-and-down adjustment of the horizontal moving platform assembly 3 can be realized by rotating the sliding sleeve 23, the up-and-down adjustment stroke is increased, the screw 21 can be locked, and the screw 21 is prevented from moving up and down.

One end of the guide sleeve 24 is inserted into the inside of the bottom end with the larger inner diameter of the sliding sleeve 23 and is fixedly connected with the sliding sleeve 23, and the horizontal moving platform assembly 3 is connected with the up-and-down moving rod assembly 2 through the guide sleeve 24, so that the up-and-down moving function is realized.

The locking bolt 25 is screwed into the adjusting sleeve 22 from the top end of the adjusting sleeve 22, and the size of the locking bolt 25 is the same as that of the threaded section at the upper end of the screw 21; the position of the sliding sleeve 23 on the up-and-down moving rod assembly 2 is controlled by adjusting the length of the locking bolt 25 in the adjusting sleeve 22, so that the up-and-down movement of the horizontal moving platform assembly 3 is realized; wherein the bottom end of the adjustment sleeve 22 cannot disengage from the threaded section of the upper end of the screw 21, maintaining the structural integrity of the up-and-down bar assembly 2.

In one embodiment of the present utility model, a fastener 26 is disposed around the portion of the screw 21 where the screw 21 is not provided with threads, the fastener 26 is fixedly connected to the screw 21, two planes are disposed at opposite positions of the fastener 26, and the screw 21 is fixed to the fixing screw assembly 1 by clamping the two planes by a wrench to rotate the screw 21.

In one embodiment of the utility model, a lock nut 26 is further arranged on the adjusting sleeve 22, the lock nut 26 is arranged above the sliding sleeve 23, and can fix the sliding sleeve 23, prevent the sliding sleeve 23 from swinging on the adjusting sleeve 22 and keep the device stable; when the lock nut 26 is loosened, the up-down position of the sliding sleeve 23 can be adjusted, and the sliding sleeve 23 can drive the guide sleeve 24 to rotate around the center, so that rotation is realized.

In one embodiment of the present utility model, the horizontal moving platform assembly 3 includes a platform mount 31, a grinding tool mount 32, a movable connection assembly 33 connecting the platform mount 31 and the grinding tool mount 32, and an adjusting bolt 34.

An up-and-down moving rod assembly fixing hole 311 is formed in one end of the platform fixing frame 31, and the up-and-down moving rod assembly 2 is arranged and fixedly arranged in the up-and-down moving rod assembly fixing hole 311 in a penetrating manner to drive the platform fixing frame 31 to move up and down; an adjusting plate 35 is arranged at the other end of the platform fixing frame 31, an adjusting screw hole 351 is arranged on the adjusting plate 35, and an adjusting bolt 34 is arranged in the adjusting screw hole 351 in a penetrating way and is used for adjusting the horizontal position of the grinding tool fixing frame 32; an adjusting nut may be provided on the adjusting screw hole 351 to adjust the horizontal position of the grinding tool holder 32 in cooperation with the adjusting bolt 34.

A grinding tool fixing hole 321 is formed at one end of the grinding tool fixing frame 32, and the grinding tool 4 is fixedly arranged in the grinding tool fixing hole 321 in a penetrating manner; an adjusting groove 322 is formed in the side edge, close to the adjusting plate 35, of the grinding tool fixing frame 32, the end portion of the adjusting bolt 34 is clamped in the adjusting groove 322, and the grinding tool fixing frame 32 is driven by the adjusting bolt 34 to move the grinding tool 4 in the horizontal direction.

In a specific embodiment of the present utility model, the platform fixing frame 31 is disposed below the grinding tool fixing frame 32, and a through hole is formed at a position of the platform fixing frame 31 corresponding to the grinding tool fixing hole 321, so as to facilitate installation, fixing and use of the grinding tool 4.

In one embodiment of the present utility model, the side edge of the platform fixing frame 31 is movably connected to the end of the grinding tool fixing frame 32 away from the grinding tool fixing hole 321 through the movable connection assembly 33. The horizontal movement of the grinding tool holder 32 is achieved.

In one embodiment of the present utility model, articulating assembly 33 includes a slide 331, a slide plate 332, and a connecting plate 333; the slide 331 is disposed on a side of the platform fixing frame 31, the slide 331 is an i-shaped slide, and is fixed on the side of the platform fixing frame 31 by bolts; the sliding plate 332 is in sliding connection with the slide way 331, and a groove of the sliding plate 332 is clamped on the slide way 331; the connecting plate 333 is respectively connected with the sliding plate 332 and one end of the grinding tool fixing frame 32 far away from the grinding tool fixing hole 321, and connects the platform fixing frame 31 and the grinding tool fixing frame 32 together, so that the sliding connection of the platform fixing frame 31 and the grinding tool fixing frame 32 and the movement of the grinding tool fixing frame 32 in the horizontal direction are realized.

In a specific embodiment of the present utility model, the fixing hole 311 of the up-down moving rod assembly and the fixing hole 321 of the grinding tool are adjustable holes, which can adapt to up-down moving rod assemblies 2 and grinding tools 4 of different specifications, and can facilitate the platform fixing frame 31 to rotate around the up-down moving rod assemblies 2.

In one specific embodiment of the utility model, the grinding tool 4 is a pneumatic grinding tool, so that the construction safety is improved; the adjusting functions of the adjusting plate 35 and the platform fixing frame 31, the slide 331 and the platform fixing frame 31, the connecting plate 333 and the sliding plate 332 and the grinding tool fixing frame 32, and the up-and-down moving rod assembly fixing hole 311 and the grinding tool fixing hole 321 are realized by using the connecting bolts 5.

When the movable grinding device for the cylinder head valve seat is used, the up-down moving rod assembly 2, the horizontal moving platform assembly 3 and the grinding tool 4 are combined into a whole, then the fixed screw assembly 1 is arranged at the center of the cylinder head valve seat, and the combined grinding device is arranged and fixed on the fixed screw assembly 1; when the valve seat is polished, the vertical and front and back positions of the polishing tool 4 are adjusted firstly to meet the polishing requirement, then the air source is started to start polishing, the air supply is gradually increased from small to large, the rotating speed is ensured to be stable during polishing, and the polishing precision is ensured.

According to the technical scheme, the movable coping device for the cylinder head valve seat is small in structure, convenient to carry and convenient to use for field maintenance; the vertical and horizontal movement and 360-degree rotation of the grinding tool are realized, the rotating speed is controllable, and the grinding precision can be effectively improved; the grinding efficiency is effectively improved, and the construction cost is reduced.

The cylinder head valve seat movable coping apparatus according to the present utility model is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the cylinder head valve seat removable coping apparatus as set forth in the present utility model without departing from the teachings of the present utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims

1. The movable grinding device for the cylinder head valve seat is characterized by comprising a fixed screw rod assembly (1), an up-down moving rod assembly (2), a horizontal moving platform assembly (3) and a grinding tool (4); wherein,

the fixed screw assembly (1) is arranged at the center of the valve seat;

the bottom end of the up-down moving rod assembly (2) is fixedly connected to the fixed screw assembly (1);

the up-and-down moving rod assembly (2) vertically penetrates through the horizontal moving platform assembly (3);

the horizontal moving platform assembly (3) clamps and fixes the grinding tool (4).

2. A cylinder head valve seat movable coping apparatus as claimed in claim 1, characterized in that the fixed screw assembly (1) comprises a long screw (11) and a nut (12) mated with the long screw (11);

a fixing screw hole (111) is formed in the top cover of the long screw rod (11).

3. The cylinder head valve seat movable coping device according to claim 2, wherein the up-down moving rod assembly (2) comprises a screw (21), an adjusting sleeve (22) provided with internal and external threads, a sliding sleeve (23), a guide sleeve (24), and a locking bolt (25); wherein,

the two ends of the screw rod (21) are provided with threaded sections, and the middle part of the screw rod (21) is provided with a non-threaded section; the threaded section at the bottom end of the screw rod (21) is in threaded connection with the fixed screw hole (111); the threaded section at the upper end of the screw rod (21) is in threaded connection with the adjusting sleeve (22);

the inner diameter of the upper end of the sliding sleeve (23) is smaller than the inner diameter of the lower end of the sliding sleeve (23); an internal thread is arranged at the upper end of the sliding sleeve (23);

the sliding sleeve (23) is in threaded connection with the external thread of the adjusting sleeve (22);

one end of the guide sleeve (24) is inserted into the inner part of the end with the larger inner diameter of the sliding sleeve (23) and is fixedly connected with the sliding sleeve (23);

the locking bolt (25) is screwed into the adjusting sleeve (22) from the top end of the adjusting sleeve (22).

4. A cylinder head valve seat movable grinding apparatus as claimed in claim 3, wherein a fastener is circumferentially provided at a portion of the screw (21) where no thread is provided, and two flat surfaces are provided at opposite positions of the fastener.

5. A cylinder head valve seat movable coping device as claimed in claim 3, characterized in that a raised portion is provided at a lower end of the adjustment sleeve (22); the diameter of the protruding portion is smaller than the inner diameter of the lower end of the sliding sleeve (23) and larger than the inner diameter of the upper end of the sliding sleeve (23).

6. A cylinder head valve seat movable grinding device according to claim 3, characterized in that the diameter of the unthreaded section of the screw (21) is greater than the diameter of the threaded section.

7. A cylinder head valve seat movable grinding device according to claim 3, characterized in that a lock nut (26) is also provided on the adjustment sleeve (22).

8. The cylinder head valve seat movable grinding device according to claim 1, wherein the horizontal moving platform assembly (3) comprises a platform fixing frame (31), a grinding tool fixing frame (32), a movable connecting assembly (33) for connecting the platform fixing frame (31) and the grinding tool fixing frame (32), and an adjusting bolt (34);

one end of the platform fixing frame (31) is provided with an up-down moving rod assembly fixing hole (311); an adjusting plate (35) is arranged at the other end of the platform fixing frame (31); an adjusting screw hole (351) is formed in the adjusting plate (35); the adjusting bolt (34) is arranged in the adjusting screw hole (351) in a penetrating way;

a grinding tool fixing hole (321) is formed in one end of the grinding tool fixing frame (32); an adjusting groove (322) is formed in the side edge, close to the adjusting plate (35), of the grinding tool fixing frame (32); the end part of the adjusting bolt (34) is clamped in the adjusting groove (322);

the side edge of the platform fixing frame (31) is movably connected with one end, far away from the grinding tool fixing hole (321), of the grinding tool fixing frame (32) through the movable connecting component (33).

9. The cylinder head valve seat movable coping apparatus as claimed in claim 8, wherein the movable coupling assembly (33) includes a slide (331), a slide plate (332), and a coupling plate (333);

the slide way (331) is arranged on the side edge of the platform fixing frame (31);

the sliding plate (332) is in sliding connection with the slideway (331);

the connecting plate (333) is respectively connected with the sliding plate (332) and one end of the grinding tool fixing frame (32) far away from the grinding tool fixing hole (321).

10. The cylinder head valve seat movable grinding device according to claim 8, wherein the up-down moving rod assembly fixing hole (311) and the grinding tool fixing hole (321) are adjustable holes.