Blade structure of high-strength wear-resistant primary-secondary vane pump

Abstract

The utility model discloses a high-strength wear-resistant primary-secondary vane pump vane structure, which relates to the technical field of primary-secondary vane pumps, and comprises a primary vane and a secondary vane, the bottom of the primary vane is provided with a chute matched with the secondary vane to slide, the bottom of the secondary vane is provided with a friction part, the bottom of the friction part is arranged in a cambered surface manner, and the lower end of the side part of the secondary vane is provided with a connecting groove. Connecting blocks are fixedly arranged at the tops of the friction parts and inserted into the connecting grooves, and limiting mechanisms are arranged at the lower ends of the two sides of the sub-blades and used for limiting positioning mechanisms of the positions of the connecting blocks. According to the utility model, the sub-blades can be arranged in a split manner, so that parts needing to be frequently rubbed can be quickly replaced, the overall disassembly and assembly of the sub-blades are avoided as much as possible, the loss of the sub-blades is reduced, and meanwhile, the use strength of the sub-blades can also be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of child -mother vane pump, concretely relates to high strength wear -resisting child -mother vane pump vane structure. BACKGROUND

[0002] The child -mother vane pump overcomes some limitations of ordinary vane pumps through the unique child -mother vane structure design, and the key lies in its special vane structure, and one big one small two pieces of vane are arranged in each vane groove, namely child -mother vane, for example, the patent document with the announcement number CN211116781 U discloses a vane pump vane structure, the vane structure can effectively realize one two degree pump oil effect through the setting of the mother piece and the child piece, and the arc surface is arranged on the upper and lower sides and the left and right sides of the end of the child piece away from the groove, so that the wear between the upper and lower sides and the left and right sides of the end of the child piece and the groove wall groove bottom in the rotating shaft is greatly reduced during the movement of the child piece.

[0003] Although the above-mentioned vane structure can reduce wear and increase the strength of the vane by setting the arc surface, the vane will be worn out as soon as there is sliding contact, and since the child vane is integrally arranged, the whole vane needs to be replaced when worn, which increases the loss of the child vane and reduces the use effect of the child -mother vane. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned problems existing in the prior art high strength wear -resisting child -mother vane pump vane structure, the utility model is proposed.

[0005] Therefore, the utility model aims at providing a high strength wear -resisting child -mother vane pump vane structure, which solves the problem that the whole vane needs to be replaced when worn due to the integral arrangement of the child vane, and increases the loss of the child vane.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The high strength wear -resisting child -mother vane pump vane structure includes a mother vane and a child vane, the bottom of the mother vane is provided with a sliding groove matched with the sliding of the child vane, the bottom of the child vane is provided with a friction part, the bottom of the friction part is provided in an arc surface, the lower end of the side of the child vane is provided with a connecting groove, the top of the friction part is fixedly provided with a connecting block, and the connecting block is inserted into the connecting groove.

[0008] The lower end of the two sides of the child vane is provided with a limiting mechanism, and the limiting mechanism is a positioning mechanism for limiting the position of the connecting block.

[0009] Preferably, the positioning mechanism comprises a baffle, a groove is arranged at the lower end of the outer wall of the sub-blade, a guide rod is fixedly arranged at the top of the inner wall of the groove, a sliding plate is slidably arranged on the rod wall of the guide rod, the baffle is arranged outside the sliding plate, a spring is arranged on the rod wall of the guide rod, and the two ends of the spring are fixedly connected with the guide rod and the sliding plate respectively.

[0010] Preferably, two symmetrically arranged connecting bolts are arranged between the sliding plate and the baffle.

[0011] Preferably, the longitudinal section of the connecting block and the connecting groove is in T-shaped arrangement.

[0012] Further, a pull hole is arranged at the inner lower end of the baffle.

[0013] Preferably, the groove is in communication with the connecting groove.

[0014] In the above technical scheme, the technical effects and advantages of the utility model are provided.

[0015] 1. The utility model discloses a sub-blade, a friction part, a connecting block, a connecting groove and a positioning mechanism, which can be divided into parts, so that the part that needs to be frequently rubbed can be quickly replaced, the overall sub-blade is avoided to be disassembled as much as possible, the loss of the sub-blade is reduced, and the use intensity of the sub-blade is improved.

[0016] 2. The utility model discloses a connecting groove and a connecting block, which can quickly connect or separate the friction part and the sub-blade, and improve the multifunctionality of the sub-blade. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to the drawings.

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 It is the A part enlarged schematic view of the utility model. Figure 2

[0021] Explanation of reference signs:

[0022] ​1, female blade; 2, blade; 3, sliding groove; 4, friction part; 5, connecting groove; 6, connecting block; 7, baffle; 8, groove; 9, guide rod; 10, sliding plate; 11, spring; 12, connecting bolt; 13, pull hole. DETAILED DESCRIPTION

[0023] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0024] The utility model discloses a high strength wear -resisting sub -and -mother blade pump blade structure.

[0025] The utility model provides a high strength wear -resisting sub -and -mother blade pump blade structure as shown in Figures 1-3 The high strength wear -resisting sub -and -mother blade pump blade structure includes female blade 1 and blade 2, and the bottom of female blade 1 is provided with sliding groove 3 matched with the sliding of blade 2, the bottom of blade 2 is provided with friction part 4, the bottom of friction part 4 is arc surface setting, the lower end of the side of blade 2 is provided with connecting groove 5, the top of friction part 4 is fixedly provided with connecting block 6, connecting block 6 is inserted into connecting groove 5, and the longitudinal section of connecting block 6 and connecting groove 5 is all T-shaped setting.

[0026] In order to be able to quickly connect or separate friction part 4 and blade 2, it is convenient to replace friction part 4, as shown in Figures 2-3 The lower end of the two sides of blade 2 is provided with limiting mechanism, the limiting mechanism is used for the positioning mechanism for limiting the position of connecting block 6, the positioning mechanism includes baffle 7, the lower end of the outer wall of blade 2 is provided with groove 8, the inner wall top of groove 8 is fixedly provided with guide rod 9, the rod wall of guide rod 9 is slidably provided with sliding plate 10, baffle 7 is arranged at the outside of sliding plate 10, two symmetrically arranged connecting bolts 12 are connected between sliding plate 10 and baffle 7, spring 11 is sleeved on the rod wall of guide rod 9, and the two ends of spring 11 are fixedly connected with guide rod 9 and sliding plate 10 respectively, baffle 7 is covered on the outside of connecting block 6, and pull hole 13 is formed in the lower end of the inside of baffle 7.

[0027] Method for use: when the sub -and -mother blade pump starts to work, female blade 1 and blade 2 will move in the pump along with the rotation of rotor, and the friction part 4 at the bottom of blade 2 will be in close contact with the inner surface of stator and slide, in this process, friction part 4 will bear greater friction, and is the main wear position;

[0028] When the friction part 4 needs to be replaced due to wear, first, the pull hole 13 at the lower end inside the baffle 7 is hooked with a tool, and the baffle 7 is pulled outwards, at this time, the baffle 7 will drive the sliding plate 10 to slide outwards along the guide rod 9, compress the spring 11, and make the baffle 7 gradually separate from the connecting block 6, so as to release the limiting of the connecting block 6, when the baffle 7 is completely removed from the connecting block 6, the worn friction part 4 can be taken off from the sub vane 2, since the connecting block 6 and the connecting groove 5 adopt the design that the longitudinal section is T-shaped, this structure makes the connection of the friction part 4 and the sub vane 2 stable and convenient to disassemble, only needs to pull out the friction part 4 along the direction of the connecting groove 5, so as to complete the separation;

[0029] Subsequently, the new friction part 4 is installed on the sub vane 2, the connecting block 6 at the top of the new friction part 4 is aligned with the connecting groove 5 at the lower end of the side of the sub vane 2, and is inserted and ensured to be completely embedded in the connecting groove 5, so as to realize the preliminary connection of the friction part 4 and the sub vane 2, then the baffle 7 is loosened, under the elastic force of the spring 11, the sliding plate 10 will slide along the guide rod 9 to the connecting block 6, drive the baffle 7 to cover the outside of the connecting block 6 again, and limit the connecting block 6 again, so as to ensure that the friction part 4 and the sub vane 2 are connected stably, and will not be loose or fall off during work, the sliding plate 10 and the baffle 7 are fixed through two symmetrically arranged connecting bolts 12, and the stability of the baffle 7 is further enhanced;

[0030] In this way, only the worn friction part 4 needs to be replaced, without the need of disassembling the sub vane 2 as a whole, not only the loss of the sub vane 2 is reduced, the maintenance cost is reduced, but also the maintenance efficiency of the primary and secondary vane pump is improved, so that the primary and secondary vane pump can quickly restore the normal working state, and the stable operation of the hydraulic system is ensured.

[0031] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways, therefore, the above drawings and description are illustrative in nature, and should not be understood as the limitation of the protection scope of the utility model claims.

Claims

1. A high-strength, wear-resistant mother-daughter vane pump blade structure, comprising a mother vane (1) and a daughter vane (2), characterized in that, The bottom of the mother blade (1) is provided with a sliding groove (3) that cooperates with the sliding of the daughter blade (2). The bottom of the daughter blade (2) is provided with a friction part (4). The bottom of the friction part (4) is arc-shaped. The lower side of the daughter blade (2) is provided with a connecting groove (5). The top of the friction part (4) is fixedly provided with a connecting block (6). The connecting block (6) is inserted into the connecting groove (5). The lower ends of both sides of the sub-blade (2) are provided with limiting mechanisms, which are used to limit the position of the connecting block (6).

2. The high-strength wear-resistant mother-daughter vane pump blade structure according to claim 1, characterized in that, The positioning mechanism includes a baffle (7), a groove (8) is provided at the lower end of the outer wall of the sub-blade (2), a guide rod (9) is fixedly provided at the top of the inner wall of the groove (8), a slide plate (10) is slidably sleeved on the rod wall of the guide rod (9), the baffle (7) is provided outside the slide plate (10), a spring (11) is sleeved on the rod wall of the guide rod (9), the two ends of the spring (11) are fixedly connected to the guide rod (9) and the slide plate (10) respectively, and the baffle (7) covers the outside of the connecting block (6).

3. The high-strength wear-resistant mother-daughter vane pump blade structure according to claim 2, characterized in that, Two symmetrically arranged connecting bolts (12) are provided between the sliding plate (10) and the baffle (7).

4. The high-strength wear-resistant mother-daughter vane pump blade structure according to claim 1, characterized in that, The longitudinal sections of both the connecting block (6) and the connecting groove (5) are T-shaped.

5. The high-strength wear-resistant mother-daughter vane pump blade structure according to claim 2, characterized in that, The baffle (7) has a pull hole (13) at its lower interior end.

6. The high-strength wear-resistant mother-daughter vane pump blade structure according to claim 2, characterized in that, The groove (8) is connected to the connecting groove (5).

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