Hydraulic pump blade notch perpendicularity detection device

Abstract

The utility model belongs to the field of perpendicularity detection devices, and particularly relates to a hydraulic pump blade notch perpendicularity detection device which comprises a base assembly, a supporting assembly and a clamping assembly, the base assembly comprises a bottom box, a step groove is formed in the top of the bottom box, and the supporting assembly comprises a supporting plate and a servo motor. Four through grooves are formed in the supporting plate at equal angles, a support is fixedly connected to the bottom end face of the supporting plate, a worm gear is fixedly connected to the center of the support, a coupler is matched with the output end of the servo motor, a worm is matched with the coupler, and the clamping assembly comprises an electric push rod. The output end of the electric push rod is fixedly connected with a clamping block; precise rotary positioning of the supporting plate is achieved through meshing transmission of the worm and the worm wheel, synchronous data collection is achieved through the symmetrically-arranged perpendicularity detectors, distributed clamping guided by the through grooves is adopted, the blade notch perpendicularity detection speed is increased, and perpendicularity detection of blade notches of different sizes is compatible.

Description

Technical Field

[0001] This utility model relates to the field of verticality detection devices, specifically a verticality detection device for hydraulic pump blade slots. Background Technology

[0002] As a core component of the hydraulic system, the verticality of the pump slots directly affects the pump's sealing performance, flow stability, and service life. The verticality of the slots also directly impacts the assembly fit between the pump and the rotor / stator. Excessive deviation can lead to pump jamming or sluggish movement, affecting the pump's starting performance and smooth operation. When the hydraulic pump operates at high speed, the pump slots are pressed tightly against the inner surface of the stator under centrifugal force. If the verticality of the slots is not up to standard, the pump's movement will be affected by lateral forces, causing vibration and noise. In severe cases, this can lead to rotor imbalance, accelerated bearing wear, and even mechanical failure. Therefore, a verticality detection device is necessary.

[0003] Currently, traditional manual inspection (dial indicator method) involves operators fixing the blade to a simple fixture, manually rotating the blade, and using a dial indicator to measure the perpendicular deviation between the groove and the reference surface point by point. This method has the following drawbacks:

[0004] Inefficient: Operators need to measure the vertical deviation between the slot and the reference surface point by point, and the inspection of a single piece takes a long time.

[0005] Large human error: manual clamping can easily lead to blade misalignment.

[0006] Poor applicability: It is only applicable to a single type of blade. For blades of different sizes, the clamps need to be changed, and the adjustment time is long. Therefore, a hydraulic pump blade groove perpendicularity detection device is proposed to address the above problems. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, such as low efficiency, large errors, and poor applicability, this utility model proposes a hydraulic pump blade groove perpendicularity detection device.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a hydraulic pump blade groove verticality detection device, including a base assembly, a support assembly and a clamping assembly.

[0009] The base assembly includes a base box, and a stepped groove is provided on the top of the base box.

[0010] The support assembly includes a support plate and a servo motor. The support plate has four through slots at equal angles. A bracket is fixedly connected to the bottom surface of the support plate. A worm gear is fixedly connected to the center of the bracket. The output end of the servo motor is fitted with a coupling, and a worm gear is fitted onto the coupling.

[0011] The clamping assembly includes an electric push rod, and a clamping block is fixedly connected to the output end of the electric push rod.

[0012] Preferably, the servo motor is fixedly connected to the inner wall of the base box, and the worm gear meshes with the coupling.

[0013] Preferably, the center of the bracket and the center of the support plate are on the same vertical line.

[0014] Preferably, the clamping block moves through the through slot, and the electric push rod is fixedly installed on the bottom end surface of the support plate.

[0015] Preferably, there are eight electric push rods, which are divided into two groups and distributed at both ends of the four clamping blocks.

[0016] Preferably, the two sides of the base box extend outward to form mounting plates, and a verticality measuring instrument is installed on each of the two mounting plates of the base box, and the two verticality measuring instruments are symmetrically arranged.

[0017] Preferably, the bottom of the clamping block is slidably engaged with the bottom end face of the support plate.

[0018] Preferably, the support plate is rotatably fitted within the stepped groove.

[0019] The advantages of this utility model are:

[0020] 1. This utility model solves the problems of positioning error and low efficiency caused by traditional manual rotation of blades by the design of worm gear and worm transmission structure of support component, and the precision indexing rotation and multi-angle positioning control of support plate, thereby improving the efficiency of detection orientation switching time and rotation positioning accuracy.

[0021] 2. This utility model, through the design of the electric push rod and through-slot guide structure of the clamping component, enables the blade to self-adaptively clamp and automatically align with the center, solving the problems of blade offset and time-consuming repeated adjustments caused by manual clamping, and improving clamping efficiency and center positioning accuracy.

[0022] 3. This utility model achieves multi-specification blade compatibility clamping through the through groove of the support plate and the distributed structure design of eight electric push rods, solving the problem of low equipment reuse rate caused by traditional single clamps and improving clamp replacement time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the verticality detection device.

[0025] Figure 2 This is a schematic diagram of the bottom cross-sectional structure of the verticality detection device;

[0026] Figure 3 This is a schematic diagram of the left cross-sectional structure of the verticality testing device;

[0027] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0028] Figure 5 This is a schematic diagram of the base assembly of this utility model.

[0029] In the diagram: 1. Base assembly; 101. Base box; 102. Stepped groove; 2. Verticality measuring instrument; 3. Support assembly; 301. Support plate; 302. Through groove; 303. Bracket; 304. Worm gear; 305. Servo motor; 306. Coupling; 307. Worm; 4. Clamping assembly; 401. Electric push rod; 402. Clamping block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a device for detecting the verticality of hydraulic pump blade slots. (Refer to...) Figures 1 to 5 A hydraulic pump blade slot verticality detection device includes a base assembly 1, a support assembly 3 and a clamping assembly 4.

[0033] The base assembly 1 includes a base box 101. A stepped groove 102 is provided on the top of the base box 101. The stepped groove 102 provides a stable rotation track for the support plate 301, reducing friction and vibration and ensuring rotation accuracy. The two sides of the base box 101 extend outward to form mounting plates. A verticality measuring instrument 2 is installed on each of the two mounting plates of the base box 101. The two verticality measuring instruments 2 are symmetrically arranged. The symmetrical arrangement of the verticality measuring instruments 2 covers multi-directional measurement, eliminates unilateral errors, and improves the reliability of the test. The verticality measuring instrument 2 adopts a laser triangulation sensor, which avoids scratching the blade surface through non-contact measurement. The verticality measuring instrument 2 can be selected according to the corresponding model and specifications. The test data is transmitted to an external industrial control computer through a data interface. The software automatically analyzes the verticality deviation and generates a test report.

[0034] The support assembly 3 includes a support plate 301 and a servo motor 305. Four through slots 302 are equally spaced on the support plate 301. A bracket 303 is fixedly connected to the bottom surface of the support plate 301. A worm gear 304 is fixedly connected to the center of the bracket 303. A coupling 306 is fitted to the output end of the servo motor 305. A worm 307 is fitted onto the coupling 306. The servo motor 305 is fixedly connected to the inner wall of the base box 101. The servo motor 305 provides controllable speed and direction, rotating in stages according to testing requirements to ensure the continuity of measurement data. The worm 307 meshes with the coupling 306. The center of the bracket 303 and the center of the support plate 301 are on the same vertical line. The support plate 301 rotates within the stepped slot 102. The worm gear 304 and the worm 307 achieve high-precision angle control through a reduction ratio, preventing the support plate 301 from shifting due to inertia.

[0035] The clamping assembly 4 includes an electric push rod 401. The output end of the electric push rod 401 is fixedly connected to a clamping block 402. The clamping block 402 movably passes through the through slot 302. The electric push rod 401 is fixedly installed on the bottom surface of the support plate 301. There are eight electric push rods 401, which are divided into groups of two and distributed at both ends of the four clamping blocks 402. The bottom of the clamping block 402 slides with the bottom surface of the support plate 301. Through the guiding effect of the through slot 302, the electric push rod 401 and the clamping block 402 can move linearly and adapt to the shape of the blade to avoid deformation caused by uneven clamping force. The bottom of the clamping block 402 slides with the bottom surface of the support plate 301 to reduce movement resistance and improve clamping response speed.

[0036] Working principle:

[0037] Clamping and positioning:

[0038] Place the hydraulic pump blade to be tested on the support plate 301 and start the electric push rod 401 of the clamping assembly 4.

[0039] The electric push rod 401 drives the clamping block 402 to slide along the through groove 302, clamping it symmetrically from both ends of the blade to ensure that the center of the blade is aligned with the center of the support plate 301.

[0040] Since each set of clamping blocks 402 is controlled by two electric push rods 401 in coordination, it can adapt to the clamping requirements of blades of different sizes and avoid deflection.

[0041] Rotation adjustment:

[0042] Start the servo motor 305, which drives the worm gear 307 to rotate through the coupling 306.

[0043] The worm 307 meshes with the worm wheel 304, converting the horizontal rotational motion into the vertical axis rotation of the support plate 301.

[0044] The support plate 301 rotates smoothly within the stepped groove 102, causing the blades to rotate synchronously, so that the groove openings face different detection positions.

[0045] Verticality detection:

[0046] The verticality measuring instruments 2, which are symmetrically installed on both sides of the base assembly 1, synchronously measure the blade slot.

[0047] When the support plate 301 rotates to a specific angle, the detector obtains the vertical deviation data between the slot and the reference surface through laser or contact probe.

[0048] Symmetrically arranged detectors can measure multiple directions simultaneously, ensuring the comprehensiveness and accuracy of the test results.

[0049] After the test is completed, the servo motor 305 resets the support plate 301, the electric push rod 401 releases the clamping block 402, and the blade is removed.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A hydraulic pump vane slot perpendicularity detecting device characterized by, Include: Base assembly (1), the base assembly (1) includes bottom box (101), the top of the bottom box (101) is provided with a stepped groove (102); Support assembly (3), the support assembly (3) includes support plate (301) and servo motor (305), the support plate (301) is provided with four through slots (302) at equal angles, the bottom end surface of the support plate (301) is fixedly connected with the support (303), the center of the support (303) is fixedly connected with the worm wheel (304), the output end of the servo motor (305) is matched with the shaft coupling (306), the shaft coupling (306) is matched with the worm (307); Clamping assembly (4), the clamping assembly (4) includes electric push rod (401), the output end of the electric push rod (401) is fixedly connected with the clamping block (402).

2. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 1, characterized in that: The servo motor (305) is fixedly connected on the inner wall of the bottom box (101), and the worm (307) is engaged with the shaft coupling (306).

3. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 1, characterized in that: The center of the support (303) and the center of the support plate (301) are on the same vertical line.

4. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 1, characterized in that: The clamping block (402) is movably penetrated through the through slot (302), and the electric push rod (401) is fixedly installed on the bottom end surface of the support plate (301).

5. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 4, characterized in that: The electric push rod (401) has eight, and is divided into two groups corresponding to the two ends of the four clamping blocks (402).

6. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 1, characterized in that: The two sides of the bottom box (101) extend outward to form mounting plates, and the two mounting plates of the bottom box (101) are both provided with verticality detectors (2), and the two verticality detectors (2) are symmetrically arranged.

7. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 1, characterized in that: The bottom of the clamping block (402) is slidably connected with the bottom end surface of the support plate (301).

8. The device for detecting the perpendicularity of the blade slot of a hydraulic pump according to claim 1, characterized in that: The support plate (301) is rotatably connected in the stepped groove (102).

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