CN204371653U - Oil hydraulic pump oil distribution casing housing assembly - Google Patents
Oil hydraulic pump oil distribution casing housing assembly Download PDFInfo
- Publication number
- CN204371653U CN204371653U CN201420865748.3U CN201420865748U CN204371653U CN 204371653 U CN204371653 U CN 204371653U CN 201420865748 U CN201420865748 U CN 201420865748U CN 204371653 U CN204371653 U CN 204371653U
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- cylinder body
- distribution casing
- force feed
- oil distribution
- oil
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Abstract
Oil hydraulic pump oil distribution casing housing assembly, comprises cylinder body and oil distribution casing, and wherein, cylinder body soldering copper sintering is on main body blank, and cylinder body center is provided with transmission internal spline; And cylinder body and oil distribution casing are by mating spherical surfaces, for improving oil distribution casing working efficiency; In cylinder body, be provided with cylinder body revolution cavity volume, spring fitting, in cylinder body revolution cavity volume, is conducive to cylinder body and oil distribution casing laminating is firm simultaneously; Cylinder body revolution cavity volume periphery is provided with plunger force feed cavity volume, and cylinder sleeve press-fits in plunger force feed cavity volume, and plunger is arranged in cylinder sleeve bore; Oil distributing plate combining is installed on the valve body of oil hydraulic pump, and on oil distribution casing, be provided with inner circle tool withdrawal groove; In addition, oil distribution casing is provided with the first suction force feed waist shaped hole and second and inhales force feed waist shaped hole, and inhale force feed waist shaped hole side and second first and inhales force feed waist shaped hole side and be provided with Silencing groove, for coordinating suction force feed, reduction shakes; Plunger force feed cavity volume is inhaled force feed waist shaped hole, second by cylinder-body oil duct and first and is inhaled force feed waist shaped hole and be communicated with.
Description
Technical field
The utility model relates to oil hydraulic pump technical field, particularly relates to a kind of oil hydraulic pump oil distribution casing housing assembly.
Background technique
Pluger type hydraulic pump rely on plunger in cylinder body to-and-fro motion form the change of enclosed volume to realize oil suction and force feed, compared with other pumps, have that working efficiency is high, pressure is high, long service life, Flow-rate adjustment are convenient, the feature that weight per unit power is little, is therefore used widely in technical field of mechanical equipment.But in the oil hydraulic pump oil distribution casing housing assembly used at present, cylinder body and oil distributing plate combining design unreasonable, bring larger difficulty to assembling, easily cause the too little or locking in fit up gap, cause mechanical failure, and fit up gap is excessive, certainly will affect the volumetric efficiency of pump; In addition, oil distribution casing easily produces vibrations in suction force feed process, not only causes noise pollution, and affects the characteristic of hydraulic system.
Model utility content
The technical problem that the utility model solves is to provide a kind of oil hydraulic pump oil distribution casing housing assembly, to solve the shortcoming in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Oil hydraulic pump oil distribution casing housing assembly, comprise cylinder body and oil distribution casing, wherein, cylinder body comprises main body blank and cylinder body soldering copper, cylinder body soldering copper sintering is on main body blank, and cylinder body center is provided with the transmission internal spline for transferring power, the driving shaft of oil hydraulic pump drives oil distribution casing housing assembly to rotate by transmission internal spline; And cylinder body and oil distribution casing pass through mating spherical surfaces, oil distribution casing is static relative to the pump housing, cylinder body rotates around cylinder body gyration center relative to oil distribution casing, in cylinder body, be provided with cylinder body revolution cavity volume simultaneously, be convenient to inner chamber and load miscellaneous part, spring fitting is in cylinder body revolution cavity volume, cylinder body revolution cavity volume periphery is provided with plunger force feed cavity volume, cylinder sleeve press-fits in plunger force feed cavity volume, and plunger is arranged in cylinder sleeve bore, and moves back and forth under the effect of outside; Oil distributing plate combining is installed on the valve body of oil hydraulic pump, and on oil distribution casing, be provided with the inner circle tool withdrawal groove for preventing from coordinating interference; In addition, oil distribution casing has amphicheirality, cylinder body inhales force feed work along being rotated counterclockwise all can complete, oil distribution casing is provided with the first suction force feed waist shaped hole and second and inhales force feed waist shaped hole, and the second suction force feed waist shaped hole side is provided with the first Silencing groove, first inhales force feed waist shaped hole side is provided with the second Silencing groove, all for coordinating suction force feed, in the process of inhaling force feed, reduce vibrations, plunger force feed cavity volume is inhaled force feed waist shaped hole, second by cylinder-body oil duct and first and is inhaled force feed waist shaped hole and be communicated with; When hydraulic oil inhales the suction of force feed waist shaped hole through second, the pump housing is inhaled force feed waist shaped hole extrude through plunger force feed cavity volume, cylinder-body oil duct and first after rotation; Otherwise, when hydraulic oil inhales the suction of force feed waist shaped hole through first, inhale force feed waist shaped hole through second and extrude.
In the utility model, spring one end and cylinder body turn round the hole arranged in cavity volume and are connected with split washer, masterpiece is used on cylinder body by passing hole split washer, the other end is provided with packing ring, by packing ring, masterpiece is used on driving shaft, after installation like this, spring is in compressive state, be conducive to cylinder body and oil distribution casing laminating firm.
In the utility model, between spring and hole split washer, be also provided with back-up ring, for masterpiece is used in cylinder body.
In the utility model, be provided with back-up ring inside groove in cylinder body revolution cavity volume, hole split washer is arranged in back-up ring inside groove.
In the utility model, oil distribution casing is installed on the valve body of pump by coordinating inner hole.
In the utility model, oil distribution casing is provided with and carries out the spacing circumferential positioning pin hole of circumference, the inner circle tool withdrawal groove that oil distribution casing is arranged for inserting circumferential locating stud, realize circumference by the circumferential locating stud inserting circumferential positioning pin hole spacing.
In the utility model, first inhales force feed waist shaped hole and second inhales force feed waist shaped hole about cylinder body gyration center symmetrically structural configuration.
In the utility model, it is repeat mode that the first Silencing groove to rotate after 180o with the second Silencing groove around cylinder body gyration center.
Oil hydraulic pump oil distribution casing housing assembly processing method, concrete steps are as follows:
1, the preparation of cylinder body
1) choose body material, body material requires: blank forges modified, and quenching and tempering hardness is HRC29 ~ 32;
2) to step 1) in the body material chosen carry out sintered copper after roughing, and layers of copper is without trachoma, loose and macrosegregation, obtains cylinder body base;
3) according to each element structure of tank design, machining steps 2) in the cylinder body base that obtains, obtain cylinder body finished product; Employing vertical machining centre is processed, and in vertical machining centre, be provided with Production development sampling observation detector, detects valve body critical size, to ensure the machining accuracy produced in batches, effectively controls scrappage;
4) to step 3) in the complete cylinder body finished product of machining carry out surface gas nitriding treatment, grinding front surface hardness is not less than 620HV0.2, depth of penetration 0.35 ~ 0.5mm;
5) until step 4) in after the gas nitriding of cylinder body finished surface is disposed, honing plunger force feed cavity volume;
6) treat step 5) in after the honing of plunger force feed cavity volume, cylinder sleeve is pressed into plunger force feed cavity volume, stand-by;
2, the preparation of oil distribution casing
1) choose body material, body material requires: blank forges modified, and quenching and tempering hardness is HRC29 ~ 32;
2) to step 1) in the body material chosen adopt the mode of secondary clamping to process two sides respectively, use the turning center processing of drive cutter head, and Production development sampling observation detector is installed in turning center, detect valve body critical size, to ensure the machining accuracy produced in batches, effective control scrappage, obtains oil distribution casing finished product;
3) to step 2) in obtain oil distribution casing finished surface carry out surface gas nitriding treatment, grinding front surface hardness is not less than 1000HV0.2, and depth of penetration 0.35 ~ 0.5mm is stand-by;
3, cylinder body and oil distribution casing is assembled
1) cylinder body and oil distribution casing are matched one by one grinding sphere, be assembled into oil distribution casing housing assembly;
2) to step 1) in the oil distribution casing housing assembly that obtains adopt heat energy mode to remove machined burrs;
3) treat step 2) in oil distribution casing housing assembly machined burrs remove after, polishing is carried out to oil distribution casing housing assembly, after polishing, cleaning corrosion protection degaussing process is carried out to oil distribution casing housing assembly;
4) to step 3) in after the oil distribution casing housing assembly that is disposed of cleaning corrosion protection degaussing carries out outward appearance detection, encapsulation warehouse-in.
Beneficial effect: in the utility model, cylinder body and oil distribution casing are by mating spherical surfaces, and oil distribution casing is static relative to the pump housing, and cylinder body rotates around cylinder body gyration center relative to oil distribution casing, to improve the working efficiency of oil distribution casing oil suction and force feed; Simultaneously spring fitting is in cylinder body revolution cavity volume, and masterpiece is used on cylinder body by its one end passing hole split washer, and masterpiece is used on driving shaft by packing ring by the other end, is conducive to cylinder body and oil distribution casing laminating is firm; And assemble according to set fit up gap and size between cylinder body and oil distribution casing, not only effectively reduce the noise produced when running, and the transmission performance of each assembly can be ensured, prevent mechanical failure, and inhale force feed waist shaped hole and second first and inhale on force feed waist shaped hole and be provided with Silencing groove, be conducive to reducing the vibrations of inhaling in force feed process, safeguard the characteristic that hydraulic system is stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment of the present utility model.
Fig. 2 is the cylinder body sectional view in preferred embodiment of the present utility model.
Fig. 3 is the cylinder body left view in preferred embodiment of the present utility model.
Fig. 4 is the cylinder body right elevation in preferred embodiment of the present utility model.
Fig. 5 is the cylinder blank figure in preferred embodiment of the present utility model.
Fig. 6 is the oil distribution casing plan view in preferred embodiment of the present utility model.
Fig. 7 is D-D place sectional view in Fig. 6.
Fig. 8 is the oil distribution casing rear view in preferred embodiment of the present utility model.
Fig. 9 is B-B place sectional view in Fig. 8.
Figure 10 is C-C place sectional view in Fig. 8.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See the oil hydraulic pump oil distribution casing housing assembly of Fig. 1 ~ Figure 10, comprise cylinder body 1, hole split washer 2, back-up ring 3, oil distribution casing 4, spring 5, cylinder sleeve 6, packing ring 7, cylinder body gyration center 8, main body blank 1-1, cylinder body soldering copper 1-2, transmission internal spline 1-3, cylinder-body oil duct 1-4, cylinder sleeve bore 1-5, back-up ring inside groove 1-6, cylinder body revolution cavity volume 1-7, plunger force feed cavity volume 1-8, inner circle tool withdrawal groove 4-1, coordinate endoporus 4-2, first to inhale force feed waist shaped hole 4-3, the second suction force feed waist shaped hole 4-4, circumferential positioning pin hole 4-5, the first Silencing groove 4-6 and the second Silencing groove 4-7.
In the present embodiment, cylinder body 1 comprises main body blank 1-1 and cylinder body soldering copper 1-2, cylinder body soldering copper 1-2 sinters on main body blank 1-1, transmission internal spline 1-3 is in the center of cylinder body 1, for transferring power, the driving shaft of pump drives solid of rotation assembly to rotate by this, cylinder body 1 and oil distribution casing 4 pass through mating spherical surfaces, the pump housing is static relatively for oil distribution casing 4, cylinder body 1 rotates around cylinder body gyration center 8 relative to oil distribution casing 4, spring 5 is installed in cylinder body 1, hole split washer 2 is installed in the back-up ring inside groove 1-6 of setting on cylinder body 1, back-up ring 3 is installed between spring 5 and hole split washer 2, and masterpiece is used on cylinder body 1 near one end of back-up ring 3 by back-up ring 3 and hole split washer 2 by spring 5, masterpiece is used on driving shaft by packing ring 7 by the other end, so after mounting, spring 5 is in compressive state, it is firm that cylinder body 1 and oil distribution casing 4 are fitted, the cylinder body revolution cavity volume 1-7 arranged in cylinder body 1, be convenient to inner chamber and load miscellaneous part, cylinder sleeve 6 press-fits in plunger force feed cavity volume 1-8, plunger loads in cylinder sleeve bore 1-5, and move back and forth under the effect of outside, oil distribution casing 4 is installed on the valve body of pump by coordinating endoporus 4-2 to coordinate, inner circle tool withdrawal groove 4-1 set on oil distribution casing 4 prevents from coordinating and interferes, and it is spacing by the pin circumference inserting circumferential positioning pin hole 4-5, oil distribution casing 4 is for having amphicheirality, cylinder body 1 inhales force feed work along being rotated counterclockwise all can complete, second inhales force feed waist shaped hole 4-4 side is provided with the first Silencing groove 4-6, first inhales force feed waist shaped hole 4-3 side is provided with the second Silencing groove 4-7, all for coordinating suction force feed, in the process of inhaling force feed, reduce vibrations, inhale force feed waist shaped hole 4-4 when hydraulic oil through second to be inhaled into, the pump housing is inhaled force feed waist shaped hole 4-3 through plunger force feed cavity volume 1-8, cylinder-body oil duct 1-4 and first after rotation and is extruded.
In the present embodiment, oil hydraulic pump oil distribution casing housing assembly processing method, concrete steps are as follows:
1, the preparation of cylinder body 1
1) choose body material, body material requires: blank forges modified, and quenching and tempering hardness is HRC29 ~ 32;
2) to step 1) in the body material chosen carry out sintered copper after roughing, and layers of copper is without trachoma, loose and macrosegregation, obtains cylinder body base;
3) according to each element structure of design on cylinder body 1, machining steps 2) in the cylinder body base that obtains, obtain cylinder body finished product; Employing vertical machining centre is processed, and in vertical machining centre, be provided with Production development sampling observation detector, detects valve body critical size, to ensure the machining accuracy produced in batches, effectively controls scrappage;
4) to step 3) in the complete cylinder body finished product of machining carry out surface gas nitriding treatment, grinding front surface hardness is not less than 620HV0.2, depth of penetration 0.35 ~ 0.5mm;
5) until step 4) in after the gas nitriding of cylinder body finished surface is disposed, honing plunger force feed cavity volume 1-8;
6) treat step 5) in after plunger force feed cavity volume 1-8 honing, cylinder sleeve 6 is pressed into plunger force feed cavity volume 1-8, stand-by;
2, the preparation of oil distribution casing 4
1) choose body material, body material requires: blank forges modified, and quenching and tempering hardness is HRC29 ~ 32;
2) to step 1) in the body material chosen adopt the mode of secondary clamping to process two sides respectively, use the turning center processing of drive cutter head, and Production development sampling observation detector is installed in turning center, detect valve body critical size, to ensure the machining accuracy produced in batches, effective control scrappage, obtains oil distribution casing finished product;
3) to step 2) in obtain oil distribution casing finished surface carry out surface gas nitriding treatment, grinding front surface hardness is not less than 1000HV0.2, and depth of penetration 0.35 ~ 0.5mm is stand-by;
3, cylinder body 1 and oil distribution casing 4 is assembled
1) cylinder body 1 and oil distribution casing 4 are matched one by one grind sphere, be assembled into oil distribution casing housing assembly;
2) to step 1) in the oil distribution casing housing assembly that obtains adopt heat energy mode to remove machined burrs;
3) treat step 2) in oil distribution casing housing assembly machined burrs remove after, polishing is carried out to oil distribution casing housing assembly, after polishing, cleaning corrosion protection degaussing process is carried out to oil distribution casing housing assembly;
4) to step 3) in after the oil distribution casing housing assembly that is disposed of cleaning corrosion protection degaussing carries out outward appearance detection, encapsulation warehouse-in.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. oil hydraulic pump oil distribution casing housing assembly, comprises cylinder body and oil distribution casing, it is characterized in that, cylinder body comprises main body blank and cylinder body soldering copper, and cylinder body soldering copper sintering is on main body blank, and cylinder body center is provided with the transmission internal spline for transferring power; And cylinder body and oil distribution casing pass through mating spherical surfaces, in cylinder body, be provided with cylinder body revolution cavity volume, spring fitting is in cylinder body revolution cavity volume, and cylinder body revolution cavity volume periphery is provided with plunger force feed cavity volume simultaneously, cylinder sleeve press-fits in plunger force feed cavity volume, and plunger is arranged in cylinder sleeve bore; Oil distributing plate combining is installed on the valve body of oil hydraulic pump, and on oil distribution casing, be provided with the inner circle tool withdrawal groove for preventing from coordinating interference; In addition, oil distribution casing is provided with the first suction force feed waist shaped hole and second and inhales force feed waist shaped hole, and the second suction force feed waist shaped hole side is provided with the first Silencing groove, first inhales force feed waist shaped hole side is provided with the second Silencing groove, and plunger force feed cavity volume is inhaled force feed waist shaped hole, second by cylinder-body oil duct and first and inhaled force feed waist shaped hole and be communicated with.
2. oil hydraulic pump oil distribution casing housing assembly according to claim 1, is characterized in that, spring one end and cylinder body turn round the hole arranged in cavity volume and be connected with split washer, and the other end is provided with packing ring.
3. oil hydraulic pump oil distribution casing housing assembly according to claim 2, is characterized in that, be also provided with back-up ring between spring and hole split washer.
4. oil hydraulic pump oil distribution casing housing assembly according to claim 2, is characterized in that, be provided with back-up ring inside groove in cylinder body revolution cavity volume, hole split washer is arranged in back-up ring inside groove.
5. oil hydraulic pump oil distribution casing housing assembly according to claim 1, is characterized in that, oil distribution casing is installed on the valve body of pump by coordinating inner hole.
6. oil hydraulic pump oil distribution casing housing assembly according to claim 1, is characterized in that, oil distribution casing is provided with and carries out the spacing circumferential positioning pin hole of circumference for inserting circumferential locating stud.
7. oil hydraulic pump oil distribution casing housing assembly according to claim 1, is characterized in that, first inhales force feed waist shaped hole and second inhales force feed waist shaped hole about cylinder body gyration center symmetrically structural configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865748.3U CN204371653U (en) | 2014-12-30 | 2014-12-30 | Oil hydraulic pump oil distribution casing housing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865748.3U CN204371653U (en) | 2014-12-30 | 2014-12-30 | Oil hydraulic pump oil distribution casing housing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371653U true CN204371653U (en) | 2015-06-03 |
Family
ID=53327878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865748.3U Expired - Fee Related CN204371653U (en) | 2014-12-30 | 2014-12-30 | Oil hydraulic pump oil distribution casing housing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371653U (en) |
-
2014
- 2014-12-30 CN CN201420865748.3U patent/CN204371653U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20171230 |