技术领域technical field
本实用新型属于径向柱塞液压泵技术领域，特别涉及一种适用于径向柱塞液压泵的柱塞均匀磨损的自转结构。The utility model belongs to the technical field of radial plunger hydraulic pumps, in particular to an autorotation structure suitable for uniform wear of plungers of radial plunger hydraulic pumps.
背景技术Background technique
液压技术作为现代工业技术的一个重要方面，在各种工业设备、行走机械以及船舶、飞机上都得到了广泛应用。在液压系统中，液压泵的功能是将电动机或内燃机等原动机的机械能转换成液体的压力能，向系统提供压力油并驱动执行元件工作，属于液压动力元件。As an important aspect of modern industrial technology, hydraulic technology has been widely used in various industrial equipment, walking machinery, ships and aircraft. In the hydraulic system, the function of the hydraulic pump is to convert the mechanical energy of the prime mover such as the electric motor or the internal combustion engine into the pressure energy of the liquid, provide pressure oil to the system and drive the actuator to work, which belongs to the hydraulic power component.
径向柱塞泵其结构形式有多种，但其共同特征是各柱塞排列在传动轴的半径方向上，亦即各柱塞的中心线都是垂直于传动轴的中心线的。径向柱塞泵内有定子和转子，两者偏心布置，转子装在配流轴上，沿转子的圆周方向开有多个均布的柱塞孔，柱塞可在其中灵活运动。当传动轴带动转子转动时，由于回程环与连杆的作用，使得柱塞在转子柱塞孔内作往复运动，实现密封容积的变化。转子每转一周，每个柱塞往复一次，完成一次吸油和排油过程。液压油由泵体吸油口经配流轴内部通道，在转子转到下半周时进入柱塞腔，当转子转到上半周升压后，从配流轴上半部的高压区经排油口排出，供给执行机构。目前该类泵的柱塞只有随着转子的公转，没有自转，由于没有自转，柱塞与转子接触的面相对不变，长期磨损较严重，最终会出现导致卡死抱轴而损坏的问题。There are many structural forms of radial piston pumps, but the common feature is that each plunger is arranged in the radial direction of the transmission shaft, that is, the centerline of each plunger is perpendicular to the centerline of the transmission shaft. The radial piston pump has a stator and a rotor, which are arranged eccentrically. The rotor is installed on the flow distribution shaft. There are many uniformly distributed plunger holes along the circumferential direction of the rotor, and the plunger can move flexibly in it. When the transmission shaft drives the rotor to rotate, the plunger reciprocates in the plunger hole of the rotor due to the action of the return ring and the connecting rod to realize the change of the sealing volume. Every time the rotor rotates once, each plunger reciprocates once to complete an oil suction and oil discharge process. The hydraulic oil enters the plunger cavity from the oil suction port of the pump body through the internal channel of the distribution shaft when the rotor rotates to the second half cycle. supply to the implementing agency. At present, the plunger of this type of pump only revolves with the revolution of the rotor and does not rotate. Because there is no rotation, the contact surface between the plunger and the rotor is relatively unchanged, and the long-term wear is serious, which will eventually lead to the problem of jamming and shaft damage.
发明内容Contents of the invention
为了克服上述现有技术的缺点，本实用新型的目的在于提供一种适用于径向柱塞液压泵的柱塞均匀磨损的自转结构，有利于柱塞的润滑和柱塞面磨损均匀化。In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a self-rotating structure suitable for the uniform wear of the plunger of the radial plunger hydraulic pump, which is beneficial to the lubrication of the plunger and the uniform wear of the plunger surface.
为了达到上述目的，本实用新型的技术方案如下：In order to achieve the above object, the technical scheme of the utility model is as follows:
一种适用于径向柱塞液压泵的柱塞均匀磨损的自转结构，包括轴配流径向柱塞泵的定子6和转子2，定子6与转子2的偏心量可调，转子2装在配流轴1上，沿转子2的圆周方向开有三个以上均布的柱塞孔3，柱塞4配置在柱塞孔3中，柱塞4与滑靴5球面配合，滑靴5顶靠在定子6的内表面，定子6与摆动架7固连，摆动架横梁8与摆动架7相连，定子6、摆动架7外部设有径向柱塞泵外壳9，柱塞4顶部与滑靴5配合的球面4-6上开有第一油槽4-3和第二油槽4-4，并分别通过第一连通孔4-2和第二连通孔4-5与柱塞4内的高压油流道4-1相连通。A self-rotating structure suitable for the uniform wear of the plunger of the radial piston hydraulic pump, including the stator 6 and the rotor 2 of the axial distribution radial piston pump, the eccentricity of the stator 6 and the rotor 2 is adjustable, and the rotor 2 is installed in the flow distribution On the shaft 1, there are more than three uniformly distributed plunger holes 3 along the circumferential direction of the rotor 2. The plunger 4 is arranged in the plunger hole 3. The plunger 4 is spherically matched with the sliding shoe 5, and the sliding shoe 5 is against the stator. 6, the stator 6 is fixedly connected with the swing frame 7, the swing frame beam 8 is connected with the swing frame 7, the stator 6 and the swing frame 7 are provided with a radial plunger pump casing 9, and the top of the plunger 4 is matched with the sliding shoe 5 The first oil groove 4-3 and the second oil groove 4-4 are opened on the spherical surface 4-6, and the high-pressure oil passage in the plunger 4 passes through the first communication hole 4-2 and the second communication hole 4-5 respectively. 4-1 connected.
本实用新型的优点为：本实用新型使得柱塞在工作过程中，不仅有公转，而且有自转，使得柱塞和转子的接触点在不停的变化，有利于柱塞的润滑和柱塞面磨损均匀化。The utility model has the advantages that: the utility model enables the plunger not only to have a revolution but also to rotate during the working process, so that the contact point between the plunger and the rotor is constantly changing, which is beneficial to the lubrication of the plunger and the smoothness of the plunger surface. Uniform wear.
附图说明Description of drawings
图1为本实用新型的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the utility model.
图2为柱塞4与滑靴5、定子6的装配图。FIG. 2 is an assembly diagram of the plunger 4 , the shoe 5 and the stator 6 .
图3为柱塞4的结构示意图，图(a)为柱塞4的主视图，图(b)为柱塞4的俯视图。FIG. 3 is a schematic structural view of the plunger 4 , figure (a) is a front view of the plunger 4 , and figure (b) is a top view of the plunger 4 .
具体实施方式Detailed ways
下面结合附图对本实用新型做详细描述。Below in conjunction with accompanying drawing, the utility model is described in detail.
参照图1，一种适用于径向柱塞液压泵的柱塞均匀磨损的自转结构，包括轴配流径向柱塞泵的定子6和转子2，定子6与转子2的偏心量可调，转子2装在配流轴1上，沿转子2的圆周方向开有十一个均布的柱塞孔3，柱塞4配置在柱塞孔3中，柱塞4在柱塞孔3中往复运动，柱塞4与滑靴5球面配合，滑靴5顶靠在定子6的内表面，定子6与摆动架7固连，摆动架横梁8与摆动架7相连，定子6、摆动架7外部设有径向柱塞泵外壳9。参照图2和图3，柱塞4顶部与滑靴5配合的球面4-6上开有第一油槽4-3和第二油槽4-4，并分别通过第一连通孔4-2和第二连通孔4-5与柱塞4内的流道4-1相连通。Referring to Figure 1, a self-rotating structure suitable for uniform wear of the plunger of a radial piston hydraulic pump includes a stator 6 and a rotor 2 of a radial piston pump with axial flow distribution, the eccentricity of the stator 6 and the rotor 2 is adjustable, and the rotor 2 is installed on the flow distribution shaft 1, and there are eleven uniformly distributed plunger holes 3 along the circumferential direction of the rotor 2, the plunger 4 is arranged in the plunger hole 3, and the plunger 4 reciprocates in the plunger hole 3, The plunger 4 is spherically matched with the sliding shoe 5, the sliding shoe 5 leans against the inner surface of the stator 6, the stator 6 is fixedly connected with the swing frame 7, the beam 8 of the swing frame is connected with the swing frame 7, and the stator 6 and the swing frame 7 are equipped with Radial piston pump housing 9. Referring to Fig. 2 and Fig. 3, the first oil groove 4-3 and the second oil groove 4-4 are opened on the spherical surface 4-6 on the top of the plunger 4 and the sliding shoe 5, and pass through the first communication hole 4-2 and the second oil groove respectively. The two communication holes 4-5 communicate with the flow channel 4-1 in the plunger 4.
本实用新型的工作原理为：The working principle of the utility model is:
当液压泵工作时，柱塞4在转子2的柱塞孔3内作往复运动，实现密封容积的变化。转子2每转一周，每个柱塞4往复一次，完成一次吸油和排油过程。液压油由泵体吸油口经配流轴1内部通道在转子2转到下半周时进入柱塞孔3内，当转子2转到上半周升压后，从配流轴1上半部的高压区经排油口排出，供给执行机构。When the hydraulic pump is working, the plunger 4 reciprocates in the plunger hole 3 of the rotor 2 to realize the change of the sealing volume. Every time the rotor 2 rotates once, each plunger 4 reciprocates once to complete an oil suction and oil discharge process. The hydraulic oil enters the plunger hole 3 from the oil suction port of the pump body through the internal channel of the distribution shaft 1 when the rotor 2 rotates to the second half cycle. The drain port discharges to supply the actuator.
当柱塞4处于压油状态时，高压油通过流道4-1、第一连通孔4-2和第二连通孔4-5，使第一油槽4-3和第二油槽4-4充满高压油。由于球面4-6与滑靴5的球面配合，高压液压油会有一定的泄露，泄露油的反作用力会使得柱塞4绕其旋转对称轴产生扭矩，从而使柱塞4产生自转。When the plunger 4 is in the oil pressure state, the high pressure oil passes through the flow channel 4-1, the first communication hole 4-2 and the second communication hole 4-5, so that the first oil groove 4-3 and the second oil groove 4-4 are filled high pressure oil. Because the spherical surface 4-6 cooperates with the spherical surface of the sliding shoe 5, the high-pressure hydraulic oil will leak to a certain extent, and the reaction force of the leaked oil will make the plunger 4 generate torque around its rotational symmetry axis, thereby causing the plunger 4 to rotate.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800332.3UCN204371570U (en) | 2014-12-16 | 2014-12-16 | A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800332.3UCN204371570U (en) | 2014-12-16 | 2014-12-16 | A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump |
| Publication Number | Publication Date |
|---|---|
| CN204371570Utrue CN204371570U (en) | 2015-06-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420800332.3UExpired - Fee RelatedCN204371570U (en) | 2014-12-16 | 2014-12-16 | A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump |
| Country | Link |
|---|---|
| CN (1) | CN204371570U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240237A (en)* | 2015-10-29 | 2016-01-13 | 华中科技大学 | Water lubrication plunger pump |
| CN106555748A (en)* | 2015-09-29 | 2017-04-05 | 宝山钢铁股份有限公司 | The method ground is burnt in prevention plunger pump skid shoe deformation |
| CN109046888A (en)* | 2018-09-04 | 2018-12-21 | 关军 | A kind of preparation of metal anti-corrosive paint and its smearing method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555748A (en)* | 2015-09-29 | 2017-04-05 | 宝山钢铁股份有限公司 | The method ground is burnt in prevention plunger pump skid shoe deformation |
| CN105240237A (en)* | 2015-10-29 | 2016-01-13 | 华中科技大学 | Water lubrication plunger pump |
| CN105240237B (en)* | 2015-10-29 | 2017-04-26 | 华中科技大学 | Water lubrication plunger pump |
| CN109046888A (en)* | 2018-09-04 | 2018-12-21 | 关军 | A kind of preparation of metal anti-corrosive paint and its smearing method |
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| 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 | Granted publication date:20150603 Termination date:20161216 | |
| CF01 | Termination of patent right due to non-payment of annual fee |