CN214577260U - High-wear-resistance diesel engine valve bridge - Google Patents
High-wear-resistance diesel engine valve bridge Download PDFInfo
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- CN214577260U CN214577260U CN202120584401.1U CN202120584401U CN214577260U CN 214577260 U CN214577260 U CN 214577260U CN 202120584401 U CN202120584401 U CN 202120584401U CN 214577260 U CN214577260 U CN 214577260U
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Abstract
A high-wear-resistance diesel engine valve bridge comprises a body, grooves are formed in the lower surfaces of the left end and the right end of the body, and a mounting hole is formed in the center of the upper surface of the middle of the body; the inner wall of the mounting hole is provided with internal threads; the upper end orifice of the mounting hole is in threaded connection with a sealing head through internal threads, and the upper surface of the sealing head is coplanar with the upper surface of the middle part of the body; the lower part of the mounting hole is in threaded connection with an oil storage seat through internal threads, and the lower surface of the oil storage seat is attached to the bottom of the mounting hole; an oil storage groove is formed in the center of the lower surface of the oil storage seat; the center of the upper surface of the oil storage seat is provided with a lower lifting hole communicated with the oil storage tank, and the diameter of the lower lifting hole is smaller than that of the oil storage tank; the middle part of the sealing head is provided with an ascending and descending hole which longitudinally penetrates through the sealing head. The utility model discloses a high wear-resisting diesel engine valve bridge can play the lubrication action when pressure device exerts pressure in valve bridge upper surface, reduces the degree of friction, improves the wearability.
Description
Technical Field
The utility model relates to a diesel engine valve bridge, especially a high wear resistant diesel engine valve bridge.
Background
The diesel engine valve bridge is a device for controlling the air valve, the lower surfaces of the left end and the right end of the diesel engine valve bridge are provided with grooves, the grooves on the two sides are sleeved with the air valve respectively, then the upper surface of the middle part of the valve bridge is pressed, the opening and closing of the air valve are controlled, therefore, the valve can be controlled to open and close for a long time, the pressing device can be continuously in contact with the upper surface of the valve bridge, along with long-term contact, the upper surface of the valve bridge is easy to wear, after the upper surface of the valve bridge is worn, the contact condition between the pressing device and the upper surface of the valve bridge can be changed, the corresponding action of the valve bridge can not be accurately and quickly made when the pressing device presses the upper surface of the valve bridge, and the service performance of the diesel engine is influenced.
Disclosure of Invention
The utility model aims to solve the current technical problem and provide a high wear-resisting diesel engine valve bridge, it can exert pressure in valve bridge upper surface at biasing means and play the lubrication action, reduces the degree of friction, improves the wearability.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a high wear-resisting diesel engine valve bridge, including the body, both ends lower surface all is equipped with recess, its characterized in that about the body: the center of the upper surface of the middle part of the body is provided with a mounting hole; the inner wall of the mounting hole is provided with internal threads; the upper end orifice of the mounting hole is in threaded connection with a sealing head through internal threads, and the upper surface of the sealing head is coplanar with the upper surface of the middle part of the body; the lower part of the mounting hole is in threaded connection with an oil storage seat through internal threads, and the lower surface of the oil storage seat is attached to the bottom of the mounting hole; an oil storage groove is formed in the center of the lower surface of the oil storage seat; the center of the upper surface of the oil storage seat is provided with a lower lifting hole communicated with the oil storage tank, and the diameter of the lower lifting hole is smaller than that of the oil storage tank; the middle part of the sealing head is provided with an ascending and descending hole which longitudinally penetrates through the sealing head; a lifting rod matched with the lower lifting hole is arranged in the lower lifting hole, and the upper end of the lifting rod upwards penetrates through the upper lifting hole and protrudes upwards out of the upper surface of the middle part of the body; the upper part of the lifting rod is screwed with a pressing plate which is attached to the lower surface of the sealing head; a spring sleeved outside the lifting rod is arranged between the lower surface of the pressure plate and the upper surface of the oil storage seat; the upper surface of the oil storage seat is provided with a plurality of oil through holes which are uniformly distributed in the circumferential direction and are communicated with the oil storage groove; a lubricating hole is formed in the center of the end face of the upper end of the lifting rod; the outer walls of the front side and the rear side of the lower end of the lifting rod are provided with oil conveying holes which are symmetrical with each other and are communicated with the lubricating hole; the inner wall of the lower lifting hole shields and seals the orifice at the outer end of the oil transportation hole.
Limiting grooves communicated with orifices at the lower ends of the lower lifting holes are formed in the left side and the right side of the bottom of the oil storage tank; and limiting blocks matched with the limiting grooves are arranged on the left side and the right side of the lower end of the lifting rod.
The outer wall of the part of the lifting rod, which is positioned in the lower lifting hole, is provided with an annular sealing groove, and the sealing groove is positioned above the oil transportation hole; and a sealing ring matched with the sealing groove is arranged in the sealing groove.
An annular groove is formed in the inner wall of the ascending and descending hole; and an O-shaped ring matched with the annular groove is arranged in the annular groove.
The oil storage tank is in a round table shape with a narrow upper part and a wide lower part.
The upper end of the lifting rod is hemispherical.
The utility model has the advantages that:
compared with the prior art, when the pressure device applies pressure on the upper surface of the middle part of the valve bridge, the pressure device can downwards extrude the upper end of the lifting rod, at the moment, the upper end of the lifting rod can be retracted into the upper lifting hole, the lower end of the lifting rod can be downwards moved into the oil storage groove, the oil delivery hole at the lower end of the lifting rod simultaneously enters the oil storage groove, along with the downward movement of the lower end of the lifting rod, the lifting rod can extrude the lubricating oil filled in the oil storage groove, the oil pressure in the oil storage groove is increased, at the moment, the lubricating oil in the oil storage groove can be extruded into the oil delivery hole under the action of oil pressure, because the lubricating hole is filled with the lubricating oil, after the lubricating oil in the oil storage groove enters the lubricating hole through the oil through hole, the lubricating oil in the lubricating hole can overflow to the upper surface of the middle part of the valve bridge body through the orifice at the upper end of the lubricating hole, thereby the lubricating device contacts with the upper surface of the middle part of the valve bridge body to play a lubricating effect, effectively reduce both degree of friction, improve the wear resistance of the upper surface at valve bridge body middle part, realize the effect of abrasionproof loss.
Drawings
FIG. 1 is a schematic structural view of a highly wear-resistant diesel engine valve bridge of the present invention;
FIG. 2 is a partial schematic structural view of the highly wear-resistant diesel valve bridge of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 3, the utility model provides a highly wear-resistant diesel engine valve bridge, which comprises a body 1, grooves 2 are arranged on the lower surfaces of the left and right ends of the body 1, and a mounting hole 3 is arranged in the center of the upper surface of the middle part of the body 1; the inner wall of the mounting hole 3 is provided with an internal thread 4; an orifice at the upper end of the mounting hole 3 is in threaded connection with a sealing head 5 through an internal thread 4, and the upper surface of the sealing head 5 is coplanar with the upper surface of the middle part of the body 1; the lower part of the mounting hole 3 is in threaded connection with an oil storage seat 6 through an internal thread 4, and the lower surface of the oil storage seat 6 is attached to the bottom of the mounting hole 3; an oil storage groove 7 is formed in the center of the lower surface of the oil storage seat 6; the center of the upper surface of the oil storage seat 6 is provided with a lower lifting hole 8 communicated with the oil storage tank 7, and the diameter of the lower lifting hole 8 is smaller than that of the oil storage tank 7; the middle part of the sealing head 5 is provided with an ascending and descending hole 9 which longitudinally penetrates through the sealing head; a lifting rod 10 matched with the lower lifting hole 8 is arranged in the lower lifting hole 8, and the upper end of the lifting rod 10 upwards passes through the upper lifting hole 9 and upwards protrudes out of the upper surface of the middle part of the body 1; the upper part of the lifting rod 10 is screwed with a pressing plate 11 which is attached to the lower surface of the sealing head 5; a spring 12 sleeved outside the lifting rod 10 is arranged between the lower surface of the pressure plate 11 and the upper surface of the oil storage seat 6; a plurality of oil through holes 13 which are uniformly distributed in the circumferential direction are formed in the upper surface of the oil storage seat 6, and the oil through holes 13 are communicated with the oil storage tank 7; a lubricating hole 14 is formed in the center of the end face of the upper end of the lifting rod 10; the outer walls of the front side and the rear side of the lower end of the lifting rod 10 are provided with oil conveying holes 15 which are symmetrical with each other, and the oil conveying holes 15 are communicated with the lubricating hole 14; the inner wall of the lower lifting hole 8 shields and seals the outer end orifice of the oil transmission hole 15.
Limiting grooves 16 communicated with orifices at the lower ends of the lower lifting holes 8 are formed in the left side and the right side of the bottom of the oil storage groove 7; and the left side and the right side of the lower end of the lifting rod 10 are provided with limit blocks 17 matched with the limit grooves 16.
The outer wall of the part of the lifting rod 10 positioned in the lower lifting hole 8 is provided with an annular sealing groove 18, and the sealing groove 18 is positioned above the oil conveying hole 15; a sealing ring 19 matched with the sealing groove 18 is arranged in the sealing groove.
An annular groove 20 is formed in the inner wall of the upper lifting hole 9; an O-shaped ring 21 matched with the annular groove 20 is arranged in the annular groove.
The oil storage tank 7 is in a round table shape with a narrow top and a wide bottom.
The upper end of the lifting rod 10 is hemispherical.
The utility model discloses a use method as follows:
firstly upwards screwing out the upper end orifice of the mounting hole 3 by the sealing head 5, then adding lubricating oil into the mounting hole 3, at the moment, part of the lubricating oil enters the oil storage groove 7 through the oil through hole 13, finally, the oil storage groove 7 is filled fully, finally, the mounting hole 3 is filled with the lubricating oil, after the lubricating oil is added, the sealing head 5 can be reset and screwed in the upper end orifice of the mounting hole 3, meanwhile, the lubricating oil is added into the lubricating hole 14 through the upper end orifice of the lubricating hole 14, and the lubricating oil is filled in the lubricating hole 14.
When the pressure device presses the upper surface of the middle part of the valve bridge, the pressure device can downwards extrude the upper end of the lifting rod, at the moment, the upper end of the lifting rod 10 can be retracted into the upper lifting hole 9, the lower end of the lifting rod 10 can be downwards moved into the oil storage tank 7, the oil transmission hole 15 at the lower end of the lifting rod 10 simultaneously enters into the oil storage tank 7, along with the downward movement of the lower end of the lifting rod 10, the lifting rod 10 can extrude the lubricating oil filled in the oil storage tank 7, the oil pressure in the oil storage tank 7 is increased, at the moment, the lubricating oil in the oil storage tank 7 can be extruded into the oil transmission hole 15 under the action of the oil pressure, because the lubricating hole 14 is filled with the lubricating oil, after the lubricating oil in the oil storage tank 7 enters into the lubricating hole 14 through the oil through hole 13, the lubricating oil in the lubricating hole 14 can overflow to the upper surface of the middle part of the valve bridge body 1 through the upper end hole of the lubricating hole 14, thereby having the lubricating effect when the pressure device is contacted with the upper surface of the middle part of the valve bridge body 1, effectively reduce both degree of friction, improve the wear resistance of the upper surface at 1 middle part of valve bridge body, realize the effect of abrasionproof loss.
When the lifting rod 10 moves downwards, the pressing plate 11 screwed on the upper part of the lifting rod 10 moves downwards along with the lifting rod, at the moment, the spring 12 between the pressing plate 11 and the oil storage seat 6 is compressed and generates elasticity, when the pressing device does not press the upper surface of the middle part of the valve bridge body 1 any more, the lifting rod 10 moves upwards and returns under the elasticity of the spring 12, meanwhile, the lubricating oil in the mounting hole 3 enters the oil storage tank 7 through the oil through hole 13 under the action of gravity, so that the oil storage tank 7 is filled with the lubricating oil again, when the lifting rod 10 moves downwards next time, the lubricating oil filled in the oil storage tank 7 enters the lubricating hole 14 again, so that the lubricating oil in the lubricating hole 14 overflows from the upper end orifice of the lubricating hole 14, and thus, the automatic lubricating effect is realized when the pressing device presses the upper surface of the middle part of the valve bridge body 1 each time.
Hold 7 tank bottoms left and right sides of oil groove and be equipped with the spacing groove 16 that link up mutually with 8 lower extreme drill way mouths of lower lifting hole, the 10 lower extreme left and right sides of lifter be equipped with spacing groove 16 assorted stopper 17, when lifter 10 is rotatory, lifter 10 then can drive stopper 17 rotatory, along with stopper 17 and spacing groove 16 block, hold oil groove 7 this moment and take place rotatoryly thereupon, this kind of joint mode does benefit to and holds oil seat 6 and screws out to mounting hole 3 outside from mounting hole 3 bottoms, realize holding oil seat 6's quick assembly disassembly.
The outer wall of the part of the lifting rod 10, which is located in the lower lifting hole 8, is provided with an annular sealing groove 18, the sealing groove 18 is located above the oil conveying hole 15, a sealing ring 19 matched with the sealing groove 18 is arranged in the sealing groove 18, and the sealing performance between the lifting rod 10 and the lower lifting hole 8 can be effectively improved due to the existence of the sealing ring 19.
Go up lift hole 9 inner wall and be equipped with ring channel 20, be equipped with rather than assorted O type circle 21 in the ring channel 20, the existence of O type circle 21 can effectively improve the leakproofness between lift hole 9 and the lifter 10, effectively avoids the lubricating oil in the mounting hole 3 to go out through the seepage of last lift hole 9.
The oil storage tank 7 is in a round table shape with a narrow top and a wide bottom, so that the lubricating oil filled in the oil storage tank 7 is also in a round table shape, and the lower end of the lifting rod 10 can extrude the lubricating oil in the oil storage tank 7.
The upper end of the lifting rod 10 is hemispherical, so that the smoothness of the upper end of the lifting rod 10 is effectively guaranteed, and the friction degree between the upper end of the lifting rod 10 and the pressure applying device is effectively reduced.
Claims (6)
1. The utility model provides a high wear-resisting diesel engine valve bridge, includes the body, both ends lower surface all is equipped with recess, its characterized in that about the body: the center of the upper surface of the middle part of the body is provided with a mounting hole; the inner wall of the mounting hole is provided with internal threads; the upper end orifice of the mounting hole is in threaded connection with a sealing head through internal threads, and the upper surface of the sealing head is coplanar with the upper surface of the middle part of the body; the lower part of the mounting hole is in threaded connection with an oil storage seat through internal threads, and the lower surface of the oil storage seat is attached to the bottom of the mounting hole; an oil storage groove is formed in the center of the lower surface of the oil storage seat; the center of the upper surface of the oil storage seat is provided with a lower lifting hole communicated with the oil storage tank, and the diameter of the lower lifting hole is smaller than that of the oil storage tank; the middle part of the sealing head is provided with an ascending and descending hole which longitudinally penetrates through the sealing head; a lifting rod matched with the lower lifting hole is arranged in the lower lifting hole, and the upper end of the lifting rod upwards penetrates through the upper lifting hole and protrudes upwards out of the upper surface of the middle part of the body; the upper part of the lifting rod is screwed with a pressing plate which is attached to the lower surface of the sealing head; a spring sleeved outside the lifting rod is arranged between the lower surface of the pressure plate and the upper surface of the oil storage seat; the upper surface of the oil storage seat is provided with a plurality of oil through holes which are uniformly distributed in the circumferential direction and are communicated with the oil storage groove; a lubricating hole is formed in the center of the end face of the upper end of the lifting rod; the outer walls of the front side and the rear side of the lower end of the lifting rod are provided with oil conveying holes which are symmetrical with each other and are communicated with the lubricating hole; the inner wall of the lower lifting hole shields and seals the orifice at the outer end of the oil transportation hole.
2. A highly wear resistant diesel valve bridge as in claim 1, wherein: limiting grooves communicated with orifices at the lower ends of the lower lifting holes are formed in the left side and the right side of the bottom of the oil storage tank; and limiting blocks matched with the limiting grooves are arranged on the left side and the right side of the lower end of the lifting rod.
3. A highly wear resistant diesel valve bridge as in claim 1, wherein: the outer wall of the part of the lifting rod, which is positioned in the lower lifting hole, is provided with an annular sealing groove, and the sealing groove is positioned above the oil transportation hole; and a sealing ring matched with the sealing groove is arranged in the sealing groove.
4. A highly wear resistant diesel valve bridge as in claim 1, wherein: an annular groove is formed in the inner wall of the ascending and descending hole; and an O-shaped ring matched with the annular groove is arranged in the annular groove.
5. A highly wear resistant diesel valve bridge as in claim 1, wherein: the oil storage tank is in a round table shape with a narrow upper part and a wide lower part.
6. A highly wear resistant diesel valve bridge as in claim 1, wherein: the upper end of the lifting rod is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120584401.1U CN214577260U (en) | 2021-03-22 | 2021-03-22 | High-wear-resistance diesel engine valve bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120584401.1U CN214577260U (en) | 2021-03-22 | 2021-03-22 | High-wear-resistance diesel engine valve bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214577260U true CN214577260U (en) | 2021-11-02 |
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ID=78355120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120584401.1U Active CN214577260U (en) | 2021-03-22 | 2021-03-22 | High-wear-resistance diesel engine valve bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214577260U (en) |
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2021
- 2021-03-22 CN CN202120584401.1U patent/CN214577260U/en active Active
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