CN203239497U - Novel hydraulic motor return stroke plate - Google Patents
Novel hydraulic motor return stroke plate Download PDFInfo
- Publication number
- CN203239497U CN203239497U CN 201320289767 CN201320289767U CN203239497U CN 203239497 U CN203239497 U CN 203239497U CN 201320289767 CN201320289767 CN 201320289767 CN 201320289767 U CN201320289767 U CN 201320289767U CN 203239497 U CN203239497 U CN 203239497U
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- disk body
- return stroke
- stroke plate
- hydraulic motor
- return plate
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Abstract
The utility model discloses a novel hydraulic motor return stroke plate which comprises a round return stroke plate body with a thin wall structure, wherein a round boss body is arranged on the rear end surface of the return stroke plate body and is coaxial with the central axis of the return stroke plate body, a spherical hinge hole penetrating through the boss body is formed in the return stroke plate body along the central axis, the peripheral wall of the spherical hinge hole comprises a convex arc curved surface of a front section hole and a concave ball cambered surface of a rear section hole, the measurement center of sphere of the concave ball cambered surface is on the central axis of the return stroke plate body, an R arc groove for preventing stress to being concentrated is arranged at the root of the return stroke plate body surrounding the boss body, and at least seven (in odd number) pass-through piston shoe holes distributed by taking the spherical hinge hole as the center are formed in the return stroke plate body at an equal radian. The novel hydraulic motor return stroke plate has the advantages of simple structure, high strength, and good wear-resistance and stability, and can meet the assembling requirement of hydraulic rotary motors.
Description
Technical field
The utility model relates to a kind of return plate in the hydraulic rotary motor technology, particularly rotary motor, specifically a kind of novel hydraulic motor return plate.
Background technique
Return plate is a dish type critical elements in the axial piston pump, the suction oil of plunger pump is to finish by the to-and-fro motion of plunger in cylinder body, during oil extraction, plunger sprays high-voltage oil liquid by the promotion compression plunger chamber of swash plate, when oil suction, plunger moves backward under the drive of return plate by piston shoes and makes the plunger cavity volume become the large vacuum realization oil suction that forms.Therefore the quality of return plate will directly affect usability and the life-span of rotary motor.In the prior art, the old type return plate of rotary motor can cause return plate damage and fracture in various degree through after certain service time, and the main cause one that causes this situation is the thinner thickness owing to return plate self, and heat treatment is inadequate.The 2nd, perfect not enough in design, stress occurs easily and concentrate.So return plate structurally also has improved necessity and space.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and provide have simple for structure, easy to process, mechanical strength is high, a kind of novel hydraulic motor return plate of flexible swinging and good stability.
The utility model solves the problems of the technologies described above the technological scheme that adopts: a kind of novel hydraulic motor return plate, the backhaul disk body that comprises the Circular Thin structure, central axis concentric processing with the backhaul disk body on the ear end face of backhaul disk body is shaped with circular boss body, and this backhaul disk body is shaped with the ball pivot hole that connects the boss body along central axis, the perisporium in ball pivot hole is made of the convex arc curved surface of front sector hole and the recessed spherical cambered surface of rear sector hole, the measurement centre of sphere of recessed spherical cambered surface is positioned on the central axis of backhaul disk body, the backhaul disk body is shaped with the R arc fluting that prevents that stress from concentrating around the root of boss body, and the first-class radian of this backhaul disk body is penetrating to be shaped with piston shoes hole at least seven odd number amounts and that distribute centered by the ball pivot hole.
For optimizing technique scheme, the concrete measure of taking also comprises:
It is that 0.3 millimeter to 0.4 millimeter nitriding process is processed the rigidity layer that forms that above-mentioned backhaul disk body and boss body have case depth.
The two-port in above-mentioned piston shoes hole all is shaped with guiding surface.
The outer circumferential face of above-mentioned backhaul disk body and the front-end face of backhaul disk body are connected with ear end face to be processed with between being connected and are smeared the inclined-plane, angle.
Above-mentioned boss body is the cylindricality platform with the tapering termination.
The above-mentioned first-class radian of backhaul disk body is shaped with nine piston shoes holes.
Compared with prior art, the ear end face of backhaul disk body of the present utility model is designed with the boss body, this boss body has not only increased the local thickness of return plate support place relatively, promoted the mechanical strength of return plate, owing to be designed with the boss body traditional ball pivot hole and the area of contact of ball pivot are increased greatly simultaneously, thereby flexibility and stability can effectively improve return plate and swing the time, prolong working life of this product.The backhaul disk body of this product is shaped with a circle R arc fluting at the root of boss body, has solved the problem that traditional return plate easily causes stress to concentrate, and return plate adopts nitriding process heat treatment, makes the hardness of product higher, wear resistance is better.The utility model is simple for structure, easy to process, with low cost, can satisfy the matching requirements of hydraulic rotary motor, improves total quality and the working life of motor.
Description of drawings
Fig. 1 is the utility model embodiment's side-looking sectional structure chart;
Fig. 2 is the structural representation of facing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is to Figure 2 shows that structural representation of the present utility model.
Reference character wherein is: ball pivot hole K, convex arc curved surface K1, recessed spherical cambered surface K2, axis L, measurement centre of sphere Q, backhaul disk body 1, piston shoes hole 1a, guiding surface 1b, smear inclined-plane, angle 1c, R arc fluting 11, boss body 2, tapering termination 21.
Extremely shown in Figure 2 such as Fig. 1, a kind of novel hydraulic motor return plate of the present utility model, the backhaul disk body 1 that comprises the Circular Thin structure, axis L concentric processing with backhaul disk body 1 on the ear end face of backhaul disk body 1 is shaped with circular boss body 2, and this backhaul disk body 1 is shaped with the ball pivot hole K that connects boss body 2 along central axis, the perisporium of ball pivot hole K is made of the convex arc curved surface K1 of front sector hole and the recessed spherical cambered surface K2 of rear sector hole, the measurement centre of sphere Q of recessed spherical cambered surface K2 is positioned on the axis L of backhaul disk body 1, above-mentioned backhaul disk body 1 is shaped with the R arc fluting 11 that prevents that stress from concentrating around the root of boss body 2, and this backhaul disk body 1 first-class radian is penetrating to be shaped with piston shoes hole 1a at least seven odd number amounts and that distribute centered by the K of ball pivot hole.Return plate is a circular disk body that is applied on the oil hydraulic motor, traditional return plate in the prior art is because disk body self is thinner, damage and fracture in various degree appears in return plate easily in the situation of long-time high speed swinging, had a strong impact on total quality and the working life of oil hydraulic motor.The utility model ear end face increase at backhaul disk body 1 on the basis of traditional return plate has boss body 2, further increased the local thickness of backhaul disk body 1, in order to prevent the concentrated infringement that causes return plate of stress, backhaul disk body 1 is shaped with R arc fluting 11 around the root of boss body 2 simultaneously.Because increase has boss body 2 also to make relative increase of area of the recessed spherical cambered surface K2 of this product and ball pivot contact, thereby makes stability of the present utility model, wear resistance and mechanical strength that the raising of essence be arranged.The measurement centre of sphere Q of recessed spherical cambered surface K2 is positioned on the axis L of backhaul disk body 1, has greatly improved the equipped precision of return plate and ball pivot, has guaranteed the flexibility that return plate swings.The utility model is simple for structure, easy processing, and mechanical strength is high, and good stability can satisfy the matching requirements of hydraulic rotary motor.
In order further to improve the capability and performance of this product, it is that 0.3 millimeter to 0.4 millimeter nitriding process is processed the rigidity layer that forms that backhaul disk body 1 and boss body 2 have case depth among the embodiment.The utility model via nitride can improve wear resistance, fatigue resistance and the corrosion resistance of product and the heat-resisting quantity of product after processing greatly.
As can be seen from Figure 1, the two-port of piston shoes hole 1a all is shaped with guiding surface 1b among the embodiment.Guiding surface 1b is conducive to the equipped of this product and piston shoes.
Among the embodiment, the outer circumferential face of backhaul disk body 1 and the front-end face of backhaul disk body 1 are connected with ear end face to be processed with between being connected and are smeared inclined-plane, angle 1c.
Among the embodiment, boss body 2 is the cylindricality platform with tapering termination 21.
Among the embodiment, backhaul disk body 1 first-class radian is shaped with nine piston shoes hole 1a.
The utility model has the advantages that:
1, the increase of backhaul disk body has the boss body, makes the structural strength of return plate and stability better.
2, the boss body has increased the junction plane of return plate and ball pivot, has prolonged the working life of return plate, has reduced the risk of return plate fracture.
3, heat treatment aspect adopts nitriding process to increase the wear resistance of return plate.
Claims (6)
1. novel hydraulic motor return plate, the backhaul disk body (1) that comprises the Circular Thin structure, it is characterized in that: central axis (L) the concentric processing with backhaul disk body (1) on the ear end face of described backhaul disk body (1) is shaped with circular boss body (2), and this backhaul disk body (1) is shaped with the ball pivot hole (K) that connects boss body (2) along central axis, the perisporium in described ball pivot hole (K) is made of the convex arc curved surface (K1) of front sector hole and the recessed spherical cambered surface (K2) of rear sector hole, the measurement centre of sphere (Q) of described recessed spherical cambered surface (K2) is positioned on the central axis (L) of backhaul disk body (1), described backhaul disk body (1) is shaped with the R arc fluting (11) that prevents that stress from concentrating around the root of boss body (2), and the first-class radian of this backhaul disk body (1) is penetrating to be shaped with piston shoes hole (1a) at least seven odd number amounts and that distribute centered by ball pivot hole (K).
2. a kind of novel hydraulic motor return plate according to claim 1 is characterized in that: it is that 0.3 millimeter to 0.4 millimeter nitriding process is processed the rigidity layer that forms that described backhaul disk body (1) and boss body (2) have case depth.
3. a kind of novel hydraulic motor return plate according to claim 2, it is characterized in that: the two-port in described piston shoes hole (1a) all is shaped with guiding surface (1b).
4. a kind of novel hydraulic motor return plate according to claim 3 is characterized in that: the outer circumferential face of described backhaul disk body (1) and the front-end face of backhaul disk body (1) are connected with ear end face to be processed with between being connected and are smeared inclined-plane, angle (1c).
5. a kind of novel hydraulic motor return plate according to claim 4 is characterized in that: described boss body (2) is the cylindricality platform with tapering termination (21).
6. a kind of novel hydraulic motor return plate according to claim 5, it is characterized in that: the first-class radian of described backhaul disk body (1) is shaped with nine piston shoes holes (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289767 CN203239497U (en) | 2013-05-24 | 2013-05-24 | Novel hydraulic motor return stroke plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320289767 CN203239497U (en) | 2013-05-24 | 2013-05-24 | Novel hydraulic motor return stroke plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239497U true CN203239497U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320289767 Expired - Fee Related CN203239497U (en) | 2013-05-24 | 2013-05-24 | Novel hydraulic motor return stroke plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091223A (en) * | 2017-06-05 | 2017-08-25 | 中国北方车辆研究所 | Retainer component with special-shaped type face |
-
2013
- 2013-05-24 CN CN 201320289767 patent/CN203239497U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091223A (en) * | 2017-06-05 | 2017-08-25 | 中国北方车辆研究所 | Retainer component with special-shaped type face |
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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: 20131016 Termination date: 20190524 |