CN201394771Y - Centering clamping mechanism of grinding machine for carrying out operation on diesel engine exhaust valve - Google Patents
Centering clamping mechanism of grinding machine for carrying out operation on diesel engine exhaust valve Download PDFInfo
- Publication number
- CN201394771Y CN201394771Y CN2009200715009U CN200920071500U CN201394771Y CN 201394771 Y CN201394771 Y CN 201394771Y CN 2009200715009 U CN2009200715009 U CN 2009200715009U CN 200920071500 U CN200920071500 U CN 200920071500U CN 201394771 Y CN201394771 Y CN 201394771Y
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- Prior art keywords
- screw rod
- main shaft
- spacing screw
- exhaust valve
- conical sleeve
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Abstract
The utility model relates to a centering clamping mechanism of a grinding machine for carrying out operation on a diesel engine exhaust valve, which comprises a machine frame assembly, a main shaft, aworking rotating disc, a driving wheel and a centering clamping assembly. The working rotating disc is fixedly connected with the main shaft, the driving wheel drives the main shaft to rotate, and the centering clamping assembly which is arranged on the working rotating disc is used for clamping a valve rod of the exhaust valve. The characteristics of the centering clamping mechanism are as follows: the machine frame assembly, the main shaft and the driving wheel are arranged below the working rotating disc; the top part of the main shaft is fixedly connected with the bottom part of the working rotating disc; a step is arranged below the inner wall of the main shaft; the centering clamping assembly comprises an outer taper sleeve, an opening taper sleeve and a spacing screw rod; the outertaper sleeve which is jointed on the inner wall of the main shaft is seated on the step, the opening taper sleeve is sheathed in the outer taper sleeve, the top part of the opening taper sleeve is connected with the bottom part of the spacing screw rod, a long opening is longitudinally arranged on the opening taper sleeve, the spacing screw rod is screwed in an inner screw hole in the middle of the working rotating disc, and a plurality of adjusting holes are arranged on the spacing screw rod. The centering clamping mechanism has the advantages of convenient and reliable operation of clampingand loosening the valve rod of the exhaust valve, small positioning deformation, correct clamping position and high centering clamping precision.
Description
Technical field
The utility model relates to a kind of centering clamp mechanism of milling drum, relates in particular to a kind of diesel exhaust valve, centering of effectively keeping in repair and clamps demanding milling drum and be used for centering clamp mechanism to the diesel exhaust valve operation.
Background technology
Therefore the large-power marine diesel engines air bleeding valve because use fuel oil inferior in the work and bear comparatively abominable condition of work such as HTHP, so very easily damage, also requires time-based maintenance, repair with delivery valve seat between cooperate to guarantee the two reliable operation.Air bleeding valve/valve seat milling drum is exactly that the two cooperating face is repaired used equipment, and present power source mainly contains electronic and pneumatic two classes.
The milling drum equipment that is used for the maintenance of boat diesel engine air bleeding valve at present, known a kind of milling drum is used for to the centering clamp mechanism of air bleeding valve operation as shown in Figure 1, and it comprises main shaft 13, the driving wheel 14 that drive shaft is rotated and the centering clamping part that is located at the main shaft bottom that the housing assembly 11 of milling drum, the top that is arranged on housing assembly inside and working rotary table 10 are connected.Described centering clamping part comprises like the nut 12 of nut shape, is used to keep the swivel nut 15 of clamp 121; Be provided with the clamp 121 that is used for clamping air bleeding valve valve rod 100 more than two in described nut 12 and the swivel nut 15.The problem that this structure exists is: 1, clamp the centering complex structure; 2, because middle clamping part is located at the bottom of housing assembly and main shaft, and the design machining benchmark of actual row air valve is or not this place, and therefore to locate benchmark as the valve rod grinding be incorrect at this place; 3, middle clamping part and grinding face distance is far away, therefore can produce bigger skewed error.
Have the practical application structure that this is improved, as shown in Figure 2, wherein a is a cutaway view, and b is a vertical view.Its structure is that the two Hough taper sheaths 21,22 that use up slitting-up are formed in design, process the centering clamping part of locating the benchmark place, though improved reference position, processing location, but need on exhasut valve stem, install and remove taper sheath, troublesome poeration, and lean on the weight of air bleeding valve itself can't guarantee effective clamping.
Summary of the invention
The utility model is in order to solve prior art when mill is repaiied air bleeding valve, the problem that centering is regulated is time-consuming, effort, reliability are low, can't effectively clamp centering, and a kind of clip position that provides is correct and centering clamps milling drum easily and is used for centering clamp mechanism to the diesel exhaust valve operation.
The technical scheme that the utility model is taked is: milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, the driving wheel that the working rotary table that is used to place diesel exhaust valve that comprise the milling drum housing assembly, be arranged on the main shaft of housing assembly inside, is connected with main shaft, drive shaft are rotated, is arranged on the centering clamp assembly that is used for clamping air bleeding valve valve rod on the working rotary table; Be characterized in: described housing assembly, main shaft, driving wheel are arranged on the below of working rotary table; The top of described main shaft and described working rotary table bottom are connected; The inwall below of described main shaft is provided with a circle step; Be provided with inner bolt hole in the middle of the described working rotary table; Described centering clamp assembly comprises external conical sleeve, split conical sleeve, spacing screw rod; Described external conical sleeve is fitted and is located at the main shaft inwall, and seat is located on the described step; Described split conical sleeve is located in the external conical sleeve, and its top is connected with spacing screw rod bottom; Vertically be provided with an elongated opening on this split conical sleeve; Described spacing screw rod is screwed in the inner bolt hole of described working rotary table, and this spacing screw rod wall is provided with a plurality of adjustment holes.
Above-mentioned milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, wherein, also comprises a driving lever, and the adjustment hole of the head of described driving lever and described spacing screw rod is adaptive.
Above-mentioned milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, wherein, the bottom of described spacing screw rod is provided with a circle engaging lug along the perisporium extension, and described split conical sleeve top is contained in the described engaging lug, and this split conical sleeve top and contact are in described spacing screw rod bottom; Described engaging lug is provided with at least two uniform connecting holes, and the position of the corresponding described connecting hole in described split conical sleeve top is provided with groove, passes connecting hole by elastic cylindrical pin split conical sleeve is linked to each other with the spacing screw rod.
Above-mentioned milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, and wherein, described spacing screw rod is a hollow tubular structure.
Above-mentioned milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, wherein, also comprises a upper bracket, is arranged on the top of working rotary table; The top of described upper bracket is provided with at least three uniform screws, and the bolt adaptive with described screw, and described bolt passes the epimere valve stem part of described screw contact at described air bleeding valve; The below of described upper bracket is provided with at least one through hole, and the height of this through hole should be greater than the distance of spacing screw rod up-down adjustment.
Above-mentioned milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, and wherein, described through hole is mounting hole or the elongated hole that vertically is provided with.
The utility model is owing to adopted above technical scheme, and the technique effect of its generation is tangible:
1, owing to adopted the structure that split conical sleeve is connected with the spacing screw rod by elastic cylindrical pin, by the dimensioned of location benchmark, internal diameter opens the internal diameter of split conical sleeve behind the opening before opening; Cooperate with external conical sleeve during use, again by regulating rotation spacing screw rod, reach clampings, loosen the purpose of exhasut valve stem, the exhasut valve stem of centering clamping accurately and easily, loosen air bleeding valve by rotation spacing screw rod after grinding is finished, thereby take out air bleeding valve easily, easily.Easy to operate, reliable.
2, described housing assembly, main shaft, driving wheel are arranged on the below of working rotary table, make clamped position be positioned at the basic major diameter top, location of air bleeding valve valve rod, the centering clamped position is improved, as shown in Figure 3, the relative grinding face starting point C position of cause is apart from shortening, so under identical angle excursion, the location distortion is little.The deviation ratio that this deviation and prior art produce more as shown in Figure 3, wherein A is the processing location benchmark of prior art, a is the error that is produced; B is a processing of the present utility model location benchmark, and b is the error that is produced.
3, owing to adopted the split conical sleeve of one-sided opening, be not to rely on the air bleeding valve own wt, but be clamped in outside the air bleeding valve valve rod, so clamped position is correct, centering clamping accuracy height by split conical sleeve.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment of being and accompanying drawing thereof.
Fig. 1 is that existing air bleeding valve centering clamp mechanism is analysed and observe and the application state schematic diagram;
Fig. 2 is the structural representation that the air bleeding valve centering after a kind of known improvement clamps part;
The contrast schematic diagram of Fig. 3 deviation that to be the deviation that produced for the grinding jumping effect of the clamped position of existing air bleeding valve centering clamping structure and clamped position of the present utility model produced for the grinding jumping effect;
Fig. 4 is that the utility model milling drum is used for the structure of a kind of embodiment of the centering clamp mechanism of diesel exhaust valve operation is analysed and observe and the application state schematic diagram;
Fig. 5 is the decomposition texture schematic diagram of centering clamp assembly in the utility model;
Fig. 6 is the plan structure schematic diagram of the utility model split shed taper sheath.
The specific embodiment
See also Fig. 4～Fig. 6, this is that the utility model milling drum is used for the structural representation to a kind of embodiment of the centering clamp mechanism of diesel exhaust valve operation.The utility model milling drum is used for that centering clamp mechanism to the diesel exhaust valve operation comprises milling drum housing assembly 31, is arranged on the main shaft 32 of housing assembly inside, the working rotary table 33 that is used to place diesel exhaust valve that is connected with main shaft, driving wheel 34 that drive shaft is rotated, be arranged on the centering clamp assembly 35 that is used for clamping air bleeding valve valve rod on the working rotary table.200 is milling drum workbench among the figure.Described housing assembly 31, main shaft 32, driving wheel 34 are arranged on the below of working rotary table 33.The top of main shaft 32 and described working rotary table 33 bottoms are connected.Below the inwall of described main shaft 32, be provided with a circle step 321.Described centering clamp assembly 35 comprises external conical sleeve 351, split conical sleeve 352, spacing screw rod 353; Spacing screw rod described in the present embodiment is a hollow tubular structure.Described external conical sleeve 351 is fitted and is located at the inwall of main shaft 32, and seat is located on the described step 321.The top of described split conical sleeve is connected with spacing screw rod bottom.The structure that present embodiment is taked is as shown in Figure 5: extend along perisporium in the bottom of described spacing screw rod 353 and be provided with a circle engaging lug 3531, described split conical sleeve 352 tops are contained in the described engaging lug, and this split conical sleeve top and contact are in described spacing screw rod bottom.Be arranged with two connecting holes 35311 on the described engaging lug 3531, the position of the corresponding described connecting hole in described split conical sleeve 352 tops is provided with groove 3521, passes connecting hole by elastic cylindrical pin 354 split conical sleeve is linked to each other with the spacing screw rod.Vertically be provided with an elongated opening 3522 on the described split conical sleeve; By the dimensioned of location benchmark, internal diameter opens the internal diameter of this split conical sleeve behind the opening, is located at during work in the external conical sleeve before opening, by cooperating with external conical sleeve, reaches clamping, loosens the purpose of exhasut valve stem.
The utility model milling drum is used for being provided with inner bolt hole 331 in the middle of the working rotary table described in the centering clamp mechanism of diesel exhaust valve operation 33, and described spacing screw rod 353 is screwed in the inner bolt hole 331 of described working rotary table.On this spacing screw rod 353 and be provided with a plurality of adjustment holes 3532.Be convenient rotation spacing screw rod 353, the utility model also comprises a driving lever 4, and the head of described driving lever can be inserted in the adjustment hole of described spacing screw rod, rotates the spacing screw rod by giving the driving lever application of force.Certainly, also can adopt other instruments, the spacing screw rod is rotated.
In order better to support the work piece air bleeding valve, the utility model milling drum is used for the centering clamp mechanism of diesel exhaust valve operation is also comprised a upper bracket 5, is arranged on the top of working rotary table.The top of upper bracket is provided with at least two uniform screws 51 and the bolt 52 adaptive with described screw, and each bolt passes separately screw contact at the epimere valve stem part of air bleeding valve.Be provided with at least one through hole 53 below upper bracket, the height of this through hole should be greater than the distance of spacing screw rod up-down adjustment, not influence driving lever stirring the spacing screw rod.The described through hole of present embodiment is mounting hole or the elongated hole that vertically is provided with.
The utility model is in maintenance during diesel exhaust valve, and the valve rod 101 of air bleeding valve 100 is passed the spacing screw rod, and its impeller 102 is sitting in spacing screw rod oral area.Utilize driving lever or other instruments to rotate the spacing screw rod during work, be screwed into the split conical sleeve that makes one-sided opening clockwise and be pressed in the external conical sleeve and tighten up, can be effectively, centering and lock the air bleeding valve valve rod easily, carry out grinding.After grinding finished, the spacing of back-outing counterclockwise screw rod was taken taper sheath simultaneously out of, thereby loosens exhasut valve stem, and air bleeding valve can make things convenient for, easily hang out.Easy to operate.
Claims (6)
1, milling drum is used for the centering clamp mechanism to the diesel exhaust valve operation, the driving wheel that the working rotary table that is used to place diesel exhaust valve that comprise the milling drum housing assembly, be arranged on the main shaft of housing assembly inside, is connected with main shaft, drive shaft are rotated, is arranged on the centering clamp assembly that is used for clamping air bleeding valve valve rod on the working rotary table; It is characterized in that:
Described housing assembly, main shaft, driving wheel are arranged on the below of working rotary table; The top of described main shaft and described working rotary table bottom are connected; The inwall below of described main shaft is provided with a circle step;
Be provided with inner bolt hole in the middle of the described working rotary table;
Described centering clamp assembly comprises external conical sleeve, split conical sleeve, spacing screw rod; Described external conical sleeve is fitted and is located at the main shaft inwall, and seat is located on the described step; Described split conical sleeve is located in the external conical sleeve, and its top is connected with spacing screw rod bottom; Vertically be provided with an elongated opening on this split conical sleeve; Described spacing screw rod is screwed in the inner bolt hole of described working rotary table, and this spacing screw rod wall is provided with a plurality of adjustment holes.
2, milling drum according to claim 1 is used for the centering clamp mechanism to the diesel exhaust valve operation, it is characterized in that, also comprises a driving lever, and the adjustment hole of the head of this driving lever and described spacing screw rod is adaptive.
3, milling drum according to claim 1 is used for the centering clamp mechanism to the diesel exhaust valve operation, it is characterized in that, the bottom of described spacing screw rod is provided with a circle engaging lug along the perisporium extension, described split conical sleeve top is contained in the described engaging lug, and this split conical sleeve top and contact are in described spacing screw rod bottom; Described engaging lug is provided with at least two uniform connecting holes, and the position of the corresponding described connecting hole in described split conical sleeve top is provided with groove, passes connecting hole by elastic cylindrical pin split conical sleeve is linked to each other with the spacing screw rod.
4, milling drum according to claim 1 is used for the centering clamp mechanism to the diesel exhaust valve operation, it is characterized in that, described spacing screw rod is a hollow tubular structure.
5, milling drum according to claim 1 is used for the centering clamp mechanism to the diesel exhaust valve operation, it is characterized in that, also comprises a upper bracket, is arranged on the top of working rotary table; The top of described upper bracket is provided with at least three uniform screws, and the bolt adaptive with described screw, and described bolt passes the epimere valve stem part of described screw contact at described air bleeding valve; The below of described upper bracket is provided with at least one through hole, and the height of this through hole should be greater than the distance of spacing screw rod up-down adjustment.
6, milling drum according to claim 5 is used for the centering clamp mechanism to the diesel exhaust valve operation, it is characterized in that, described through hole is mounting hole or the elongated hole that vertically is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200715009U CN201394771Y (en) | 2009-04-30 | 2009-04-30 | Centering clamping mechanism of grinding machine for carrying out operation on diesel engine exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200715009U CN201394771Y (en) | 2009-04-30 | 2009-04-30 | Centering clamping mechanism of grinding machine for carrying out operation on diesel engine exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201394771Y true CN201394771Y (en) | 2010-02-03 |
Family
ID=41617265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200715009U Expired - Lifetime CN201394771Y (en) | 2009-04-30 | 2009-04-30 | Centering clamping mechanism of grinding machine for carrying out operation on diesel engine exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201394771Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182615A (en) * | 2011-12-28 | 2013-07-03 | 中国人民解放军装甲兵工程学院 | Universal multi-station cooled engine valve welding repair tool |
| CN103240656A (en) * | 2013-04-25 | 2013-08-14 | 浙江龙纪汽车零部件有限公司 | Machine spacial for valve grinding sleeve bayonet |
-
2009
- 2009-04-30 CN CN2009200715009U patent/CN201394771Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182615A (en) * | 2011-12-28 | 2013-07-03 | 中国人民解放军装甲兵工程学院 | Universal multi-station cooled engine valve welding repair tool |
| CN103240656A (en) * | 2013-04-25 | 2013-08-14 | 浙江龙纪汽车零部件有限公司 | Machine spacial for valve grinding sleeve bayonet |
| CN103240656B (en) * | 2013-04-25 | 2015-06-10 | 浙江龙纪汽车零部件有限公司 | Machine special for valve grinding sleeve bayonet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANGHAI QIYAO SYSTEM ENGINEERING CO., LTD. Assignor: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) Contract record no.: 2011990000971 Denomination of utility model: Centering clamping mechanism of grinding machine for carrying out operation on diesel engine exhaust valve Granted publication date: 20100203 License type: Exclusive License Record date: 20111014 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151113 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee after: Shanghai shine Heavy Industry Co., Ltd. Address before: 201108 Shanghai City Huaning Road No. 3111 Patentee before: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |
|
| CX01 | Expiry of patent term |