CN212351057U - Diesel engine tappet thrust block mounting device - Google Patents
Diesel engine tappet thrust block mounting device Download PDFInfo
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- CN212351057U CN212351057U CN202022194803.9U CN202022194803U CN212351057U CN 212351057 U CN212351057 U CN 212351057U CN 202022194803 U CN202022194803 U CN 202022194803U CN 212351057 U CN212351057 U CN 212351057U
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- tappet
- thrust block
- fixed
- seat
- mounting bracket
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Abstract
The utility model discloses a diesel engine tappet thrust block installation device, including hydraulic unit, the pneumatic cylinder, the tappet installing support, go up the briquetting, the briquetting is down, intermediate strut seat and bottom sprag seat, the pneumatic cylinder lower extreme passes through pneumatic cylinder supporting mechanism vertical fixation in tappet installing support upper end, the pneumatic cylinder removes end and last briquetting fixed connection, intermediate strut seat both ends and bottom sprag seat both ends are fixed respectively in corresponding tappet installing support middle part and tappet installing support lower part, the center at the bottom sprag is fixed down, the tappet middle part is supported at the center of intermediate strut seat. The lower side of the upper pressing block is adjacent to the upper end of the thrust block, and the lower end ball head of the spherical thrust block abuts against the center of the upper side of the lower pressing block. The utility model discloses simple structure, operation labour saving and time saving is safe convenient, extensive applicability, and the commonality is good, satisfies the assembly requirement of the tappet assembly of multiple model diesel engine, has improved the work efficiency and the operation security of tappet assembly.
Description
Technical Field
The utility model relates to an assembly fixture of diesel engine valve mechanism part, in particular to assembly fixture of discharge valve part tappet assembly belongs to diesel engine assembly technical field.
Background
The tappet assembly is an important part of a diesel engine valve actuating mechanism and comprises a tappet, a thrust block and a spherical thrust block, wherein the upper end and the lower end of the tappet are fixedly connected with the lower end of the thrust block and the spherical thrust block into a whole through interference fit respectively. If the tappet assembly is installed in a cold-shrink mode, the outer diameter of the tappet can be reduced, so that the thrust block and the spherical thrust block are installed at the two ends of the tappet assembly respectively, but the tappet is easy to cold crack, and therefore the tappet assembly cannot be assembled in the cold-shrink mode. At present, a tappet assembly is assembled by manual operation, and a tappet is manually held to forcibly impact a thrust block downwards so that one end of the thrust block is impacted into one end of the tappet; the tappet is then turned 180 deg., and one end of the spherical thrust block is driven into the other end of the tappet in the same manner. The installation mode is time-consuming and labor-consuming in operation mode, large in noise, easy to crash and fly, and has serious potential safety hazard.
Disclosure of Invention
The utility model aims at providing a diesel engine tappet thrust block installation device of laborsaving, safe in operation.
The utility model provides a following technical scheme realizes:
a diesel engine tappet thrust block mounting device comprises a hydraulic unit, a hydraulic cylinder, a tappet mounting bracket, an upper pressing block, a lower pressing block, a middle supporting seat and a bottom supporting seat, wherein the bottom of the hydraulic unit is supported on a hydraulic unit underframe; the lower end of the hydraulic cylinder is vertically fixed at the upper end of the tappet mounting bracket through a hydraulic cylinder supporting mechanism, and the bottom of the tappet mounting bracket and the bottom of the hydraulic unit underframe are supported on the ground through a shared underframe; the end head of the moving end of the hydraulic cylinder is fixedly connected with the upper pressing block, the two ends of the middle supporting seat and the two ends of the bottom supporting seat are respectively fixed in the middle part of the corresponding tappet mounting bracket and the lower part of the tappet mounting bracket, the lower pressing block is fixed in the center of the bottom supporting seat, and the middle part of the tappet is supported on the center of the middle supporting seat; the lower end of the thrust block is embedded into a port at the upper end of the tappet, the spherical thrust block is embedded into a port at the lower end of the tappet, the lower side of the upper pressing block is adjacent to the upper end of the thrust block, and the lower end ball head of the spherical thrust block abuts against the center of the upper side of the lower pressing block.
The object of the invention is further achieved by the following technical measures.
Furthermore, the hydraulic cylinder supporting mechanism comprises a supporting plate, four distance pipes and four screw nut groups, wherein a central hole of the supporting plate penetrates through a cylinder barrel of the hydraulic cylinder and is fixed on the upper side of a cylinder head of the hydraulic cylinder; the distance pipes positioned below the four corners of the supporting plate support the hydraulic cylinders through the supporting plate, and the supporting plate is fixed at the top end of the tappet mounting bracket by the screw and nut groups vertically penetrating through the four corners of the supporting plate and the corresponding distance pipes respectively.
Furthermore, the tappet mounting bracket comprises a top plate and a pair of stand columns, two ends of the top plate are respectively fixedly connected with the upper ends of the pair of stand columns, the lower ends of the pair of stand columns are fixed on one end of the shared bottom frame, and the lower end of the hydraulic unit bottom frame is fixed on the other end of the shared bottom frame; the cross section of the upright post is groove-shaped, a plurality of through holes which are arranged at intervals are longitudinally and uniformly distributed on the groove-shaped plane plate of the upright post, the longitudinal section of the intermediate support seat is groove-shaped, the intermediate support seat is fixed on the middle part of the tappet mounting bracket by fixing bolt groups which respectively penetrate through the groove-shaped side plate of the intermediate support seat and the through holes in the middle part of the upright post, and the middle part of the tappet penetrates through the through hole of the plane plate of the intermediate support seat and is supported; the bottom support seat is in a box shape with an upward opening, vertical plates are welded on the lower sides of two ends of the bottom support seat respectively, and the bottom support seat is fixed on the bottom of the tappet mounting bracket at the required height through fixing bolt groups respectively penetrating through the vertical plates and through holes at the lower parts of the stand columns.
Furthermore, a hemispherical pit matched with the lower end ball head of the spherical thrust block in shape is arranged in the center of the upper side of the lower pressing block, and the lower end ball head of the spherical thrust block is abutted against the hemispherical pit; and a fixing screw rod vertically extends downwards from the center of the lower side of the lower pressing block, penetrates through the center hole of the bottom supporting seat, and fixes the lower pressing block on the bottom supporting seat through a nut screwed on the fixing screw rod.
The utility model discloses simple structure, operation labour saving and time saving is safe convenient, and extensive applicability can confirm the fixed position of bottom sprag seat according to the length of tappet to satisfy the assembly requirement of the tappet assembly of multiple model diesel engine, improved the utility model discloses a commonality. The utility model discloses a pneumatic cylinder removes the end and drives the briquetting and push down, exerts pressure to thrust block and spherical thrust block of lower extreme on the tappet of fixing a position respectively, and the assembly of tappet assembly just can be accomplished in once pressurization, has improved the work efficiency of tappet assembly. The utility model discloses the noise is low during the use, vibrations are little, and the incident of thrust block departure when avoiding taking place artifical striking assembly tappet assembly has improved the utility model discloses an operation security.
The advantages and features of the invention will be illustrated and explained by the following non-restrictive description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is an enlarged view of section I of FIG. 1;
fig. 4 is an enlarged view of a portion ii of fig. 1.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 to 4, the present embodiment includes a hydraulic unit 1, a hydraulic cylinder 2, a tappet mounting bracket 3, an upper press block 4, a lower press block 5, an intermediate support seat 6 and a bottom support seat 7, the hydraulic unit 1 of the present embodiment is capable of outputting hydraulic oil, and is provided therein with a compressed air input port and a compressed air output port, and the hydraulic unit can drive the cylinder or other pneumatic tools after being connected to a compressed air hose. The bottom of the hydraulic unit 1 is supported on a hydraulic unit chassis 8 formed by welding rectangular steel pipes. The lower end of the hydraulic cylinder 2 is vertically fixed at the upper end of the tappet mounting bracket 3 through a hydraulic cylinder supporting mechanism 9, the hydraulic unit 1 is connected with the upper end of the hydraulic cylinder 2 through a hydraulic hose 12, the hydraulic cylinder 2 of the embodiment is a single-action oil cylinder, and the return stroke of the moving end depends on a return spring in the lower cavity of the hydraulic cylinder 2. The bottom of the tappet rod mounting bracket 3 and the bottom of the hydraulic unit underframe 11 are supported on the ground through a common underframe 8 formed by welding rectangular steel pipes.
The hydraulic cylinder supporting mechanism comprises a supporting plate 91, four distance pipes 92 and four screw nut sets 93, wherein a central hole 911 of the supporting plate penetrates through the cylinder barrel 21 of the hydraulic cylinder and is fixed on the upper side of the cylinder head 22 of the hydraulic cylinder. The distance tubes 92 located below the four corners of the support plate 91 support the hydraulic cylinder 2 via the support plate 91, and the screw nut groups 93 vertically penetrating the four corners of the support plate and the corresponding distance tubes 92 fix the support plate 91 to the top end of the tappet mounting bracket 3, thereby vertically fixing the hydraulic cylinder 2 to the tappet mounting bracket 3.
The tappet mounting bracket 3 comprises a top plate 31 and a pair of upright posts 32, wherein two ends of the top plate 31 are respectively welded and fixed at the upper ends of the pair of upright posts 32, the lower ends of the pair of upright posts 32 are welded and fixed at the left end of the shared bottom frame 8, and the lower end of the hydraulic unit bottom frame 11 is welded and fixed at the right end of the shared bottom frame 8. The cross section of the upright post 32 is groove-shaped, a plurality of through holes 322 are longitudinally and uniformly distributed on the groove-shaped plane plate 321 of the upright post, the longitudinal section of the intermediate support seat 6 is groove-shaped, and the intermediate support seat 6 is fixed on the middle part of the tappet mounting bracket 3 by the fixing bolt groups 33 respectively penetrating through the groove-shaped side plate 61 of the intermediate support seat and the through holes 322 in the middle part of the upright post 32.
The cross section of the bottom support base 7 is a groove with an upward opening, the lower sides of the two ends of the bottom support base are respectively welded with a vertical plate 71, and the bottom support base 7 is fixed on the lower part of the tappet mounting bracket 3 at the required height by a fixing bolt group 33 respectively passing through the vertical plate 71 and a through hole 322 at the lower part of the upright column 32. Bottom sprag seat 7 can reciprocate in tappet installing support 3 to can fix at different heights, with the tappet 10 of the different model diesel engines of adaptation assembly, enlarged the utility model discloses a range of use.
The tappet 10 is supported on the intermediate support 6 through the intermediate support plane plate through-hole 62. The intermediate support seat 6 supports the middle portion of the tappet 10 and prevents the tappet from being deformed by buckling during the process of being installed in the thrust block 20 and the spherical thrust block 30. The longitudinal section of the intermediate support 6 is trough-shaped, and the intermediate support 6 is fixed to the middle of the tappet mounting bracket 3 by the fixing bolt sets 33 respectively passing through the trough-shaped side plate 61 of the intermediate support and the through holes 322 in the middle of the upright column 32.
The end of the moving end 21 of the hydraulic cylinder is fixedly connected with the upper pressing block 4, the center of the upper side of the lower pressing block 5 is provided with a hemispherical pit 51 matched with the lower end ball head 301 of the spherical thrust block 30 in shape, and the lower end ball head 301 of the spherical thrust block 30 is abutted against the hemispherical pit 51. The lower pressing block 5 vertically extends downwards from the center of the lower side of the lower pressing block 5 to form a fixing screw 52, the fixing screw 52 penetrates through the center hole 72 of the bottom support seat, and the lower pressing block 5 is fixed on the bottom support seat 7 through a nut 53 screwed on the fixing screw 52.
Use the utility model discloses press-fit the process of lower extreme on tappet 10 with thrust block 20 and spherical thrust block 30 as follows:
the intermediate support 6 is removed, the tappet 10 is inserted through the intermediate support plane plate through-hole 62, and the intermediate support 6 together with the tappet 10 is fixed to the middle of the bottom support 7. The lower end of the thrust block 20 and the upper end of the spherical thrust block 30 are then positioned in the upper and lower ports of the tappet 10, respectively, and the lower end ball 301 of the spherical thrust block 30 is abutted in the hemispherical recess 51 in the upper side of the lower pressure block 5. When the hydraulic unit is started, the moving end 21 of the hydraulic cylinder moves downwards, the upper pressing block 4 moves downwards, and the thrust block 20 and the spherical thrust block 30 are pressed into the upper end and the lower end of the tappet 10. The cylinder displacement end 21 is moved upwards and the intermediate support 6 is removed, and the assembled tappet assembly can be removed.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (4)
1. A diesel engine tappet thrust block mounting device comprises a hydraulic unit and a hydraulic cylinder, wherein the bottom of the hydraulic unit is supported on a hydraulic unit underframe; the hydraulic cylinder lifting mechanism is characterized by further comprising a tappet mounting bracket, an upper pressing block, a lower pressing block, a middle supporting seat and a bottom supporting seat, wherein the lower end of the hydraulic cylinder is vertically fixed at the upper end of the tappet mounting bracket through a hydraulic cylinder supporting mechanism, and the bottom of the tappet mounting bracket and the bottom of the hydraulic unit underframe are supported on the ground through a shared underframe; the end head of the moving end of the hydraulic cylinder is fixedly connected with the upper pressing block, the two ends of the middle supporting seat and the two ends of the bottom supporting seat are respectively fixed in the middle part of the corresponding tappet mounting bracket and the lower part of the tappet mounting bracket, the lower pressing block is fixed on the center of the bottom supporting seat, and the middle part of the tappet is supported in the center of the middle supporting seat; the lower end of the thrust block is embedded into a port at the upper end of the tappet, the spherical thrust block is embedded into a port at the lower end of the tappet, the lower side of the upper pressing block is adjacent to the upper end of the thrust block, and the lower end ball head of the spherical thrust block abuts against the center of the upper side of the lower pressing block.
2. The diesel engine tappet thrust block mounting device as set forth in claim 1, wherein the hydraulic cylinder support mechanism includes a support plate, four distance tubes and four screw nut sets, a central hole of the support plate penetrates through the cylinder barrel of the hydraulic cylinder and is fixed on the upper side of the cylinder head of the hydraulic cylinder; the distance pipes positioned below the four corners of the supporting plate support the hydraulic cylinders through the supporting plate, and the supporting plate is fixed at the top end of the tappet mounting bracket by the screw and nut groups vertically penetrating through the four corners of the supporting plate and the corresponding distance pipes respectively.
3. The diesel engine tappet thrust block mounting device of claim 1, wherein the tappet mounting bracket comprises a top plate and a pair of upright posts, two ends of the top plate are fixedly connected with upper ends of the pair of upright posts respectively, lower ends of the pair of upright posts are fixed on one end of the common bottom frame, and lower ends of the hydraulic unit bottom frames are fixed on the other end of the common bottom frame; the cross section of the upright post is groove-shaped, a plurality of through holes which are arranged at intervals are longitudinally and uniformly distributed on the groove-shaped plane plate of the upright post, the longitudinal section of the intermediate support seat is groove-shaped, the intermediate support seat is fixed on the middle part of the tappet mounting bracket by fixing bolt groups which respectively penetrate through the groove-shaped side plate of the intermediate support seat and the through holes in the middle part of the upright post, and the middle part of the tappet penetrates through the through hole of the plane plate of the intermediate support seat and is supported; the bottom support seat is in a box shape with an upward opening, vertical plates are welded on the lower sides of two ends of the bottom support seat respectively, and the bottom support seat is fixed on the bottom of the tappet mounting bracket at the required height through fixing bolt groups respectively penetrating through the vertical plates and through holes at the lower parts of the stand columns.
4. The diesel engine tappet thrust block mounting device as set forth in claim 1, wherein the center of the upper side of the lower pressing block is provided with a hemispherical pit matching with the shape of the lower end ball head of the spherical thrust block, and the lower end ball head of the spherical thrust block is abutted against the hemispherical pit; and a fixing screw rod vertically extends downwards from the center of the lower side of the lower pressing block, penetrates through the center hole of the bottom supporting seat, and fixes the lower pressing block on the bottom supporting seat through a nut screwed on the fixing screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194803.9U CN212351057U (en) | 2020-09-30 | 2020-09-30 | Diesel engine tappet thrust block mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194803.9U CN212351057U (en) | 2020-09-30 | 2020-09-30 | Diesel engine tappet thrust block mounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212351057U true CN212351057U (en) | 2021-01-15 |
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ID=74144444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022194803.9U Active CN212351057U (en) | 2020-09-30 | 2020-09-30 | Diesel engine tappet thrust block mounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212351057U (en) |
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2020
- 2020-09-30 CN CN202022194803.9U patent/CN212351057U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province, 212002 Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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| CP03 | Change of name, title or address |