A tooling for disassembling and inspecting a swashplate hydraulic pump

Abstract

This utility model relates to the field of hydraulic pump disassembly and inspection fixtures, specifically a fixture for disassembling and inspecting a swashplate-type hydraulic pump. It includes a base, a cylinder mounted on the base, a push plate mounted on the piston rod of the cylinder, and a scraping mechanism on the base. The scraping mechanism includes a first mounting plate mounted on the base, a collar rotatably mounted on the first mounting plate, and multiple scrapers on the inner wall of the collar. A second mounting plate is also mounted on the base, with an end cap sleeve on the second mounting plate. Several grips are located on the outer side of the end cap sleeve. A through groove is formed on the first mounting plate, within which a lever is movably mounted, and the lever is connected to a slider via a transmission connection. This utility model utilizes the contact between the inclined surface of a wedge-shaped block and the lever on the first mounting plate to push the lever to rotate against the resistance of the compression spring, causing the collar to rotate. The multiple scrapers on the inner wall of the collar scrape away oil stains from the surface of the end cap as it rotates, preventing slippage during disassembly and reducing the difficulty of disassembly and inspection.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump disassembly and inspection tooling, specifically a tooling for disassembling and inspecting a swashplate type hydraulic pump. Background Technology

[0002] Hydraulic swashplate pumps often experience malfunctions such as insufficient pressure and abnormal noise during operation. Therefore, it is frequently necessary to disassemble and inspect the hydraulic swashplate pump. When disassembling and inspecting the hydraulic swashplate pump, first disconnect the power supply and release the system pressure. Then, disassemble the external connecting parts and end cover of the pump body in sequence, remove the swashplate, plunger and other components, and check for wear, scratches and other damage.

[0003] After a period of use, the surface of a swashplate hydraulic pump will be covered with a thick layer of oil. In the current technology, when disassembling and inspecting a swashplate hydraulic pump, a clamp is used to unscrew the end cap from the pump. Due to the presence of oil, the clamp often slips, increasing the difficulty of disassembly and inspection. Utility Model Content

[0004] To address the problem in existing technologies where the end cap of a swashplate is unscrewed from the pump during disassembly and inspection, the presence of oil contaminants often causes the clamp to slip, increasing the difficulty of disassembly and inspection, this invention proposes a tooling for disassembling and inspecting a swashplate hydraulic pump.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a tooling for disassembling and inspecting a slant-type hydraulic pump, including a base, a cylinder on the base, a push plate on the piston rod of the cylinder, and a scraping mechanism on the base.

[0006] The scraping mechanism includes a first mounting plate, which is mounted on the base. A collar is rotatably mounted on the first mounting plate, and multiple scrapers are provided on the inner wall of the collar. A second mounting plate is also provided on the base, and an end cap sleeve is provided on the second mounting plate. Several handles are provided on the outer side of the end cap sleeve.

[0007] Preferably, the push plate is configured as an L-shaped plate, and an elastic element is provided on the side of the push plate near the first mounting plate. The elastic element is configured as a rubber pad, and multiple elastic elements are provided.

[0008] Preferably, the base has a groove, a slider is slidably installed in the groove, the slider is provided with a movable plate for supporting the hydraulic pump, the groove is I-shaped, the slider is I-shaped slider, a tension spring is provided in the groove, and the other end of the tension spring is connected to the slider.

[0009] Preferably, the first mounting plate has a through groove, a lever plate is movably disposed in the through groove, the lever plate is fixedly connected to the collar, a compression spring is disposed in the through groove, the other end of the compression spring is connected to the lever plate, and the lever plate is drivenly connected to the slider.

[0010] Preferably, a push rod is provided on the side of the slider near the dial plate, and a wedge block is installed on the end of the push rod near the dial plate, with the wedge block corresponding to the dial plate.

[0011] Preferably, the slider is provided with a fixing plate, and bolts are threadedly installed on the fixing plate. The bolts are threadedly connected to the movable plate. A pair of bolts are provided, and the pair of bolts are located on both sides of the fixing plate.

[0012] Preferably, the opening of the end cap sleeve is provided with a rounded corner, and an anti-slip pad is provided inside the end cap sleeve.

[0013] The advantages of this utility model are:

[0014] The hydraulic pump to be disassembled and inspected in this utility model is placed on a base. A slider is slidably installed in a groove. The slider supports the hydraulic pump body through a movable plate. The height and tilt angle of the movable plate can be adjusted by bolts on both sides to ensure that the end cover is accurately aligned with the collar and the end cover sleeve. After the cylinder is started, the piston rod drives the L-shaped push plate to push the hydraulic pump towards the end cover sleeve. The inner side of the push plate is provided with multiple sets of rubber elastic elements to increase the contact area and buffer the pressure, preventing the pump body from deviating. When the slider slides, the push rod and wedge block on its side move synchronously. The inclined surface of the wedge block contacts the lever plate on the first mounting plate, pushing the lever plate to rotate against the resistance of the compression spring, thereby driving the collar to rotate. Multiple scrapers on the inner wall of the collar scrape away oil stains from the surface of the end cap as it rotates. After the end cap is pushed into the end cap sleeve, the rounded corners at its opening facilitate entry. The internal anti-slip pad made of sponge material fits tightly with the cleaned end cap, increasing friction. When the manual gripping lever rotates the sleeve, the end cap is unscrewed. After disassembly and inspection, the tension spring pulls the slider to reset. The movable plate can be adjusted with bolts to adapt to different pump body specifications, improving the tooling's versatility. This tooling achieves automatic oil stain cleaning through the linkage of the scraper and collar, preventing slippage of oil stains during disassembly, thus saving manpower and solving the problems of frequent slippage of fixtures and high disassembly and inspection difficulty in existing technologies. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the base and scraping mechanism of this utility model;

[0017] Figure 2 This is a schematic diagram of the push plate and elastic element of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the collar and wedge block of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the fixed plate and the movable plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the end cap sleeve and handle of this utility model.

[0021] In the diagram: 101, base; 102, slide groove; 201, cylinder; 202, push plate; 203, elastic element; 301, slider; 302, tension spring; 303, fixed plate; 304, movable plate; 305, bolt; 306, push rod; 307, wedge block; 4, scraping mechanism; 400, first mounting plate; 401, collar; 402, scraper; 403, compression spring; 404, through groove; 405, lever plate; 500, second mounting plate; 501, end cap sleeve; 502, grip; 503, anti-slip pad. Detailed Implementation

[0022] 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.

[0023] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0024] This application discloses a tooling for disassembling and inspecting a swashplate-type hydraulic pump. (Refer to...) Figure 1 and Figure 2 A tooling for disassembling and inspecting a swashplate-type hydraulic pump includes a base 101, a cylinder 201 mounted on the base 101, a push plate 202 mounted on the piston rod of the cylinder 201, a scraping mechanism 4 mounted on the base 101, the scraping mechanism 4 including a first mounting plate 400 mounted on the base 101, a collar 401 rotatably mounted on the first mounting plate 400, a plurality of scrapers 402 provided on the inner wall of the collar 401, a second mounting plate 500 also mounted on the base 101, an end cap sleeve 501 mounted on the second mounting plate 501, and a plurality of grips 502 provided on the outer side of the end cap sleeve 501.

[0025] Thus, after the slant-plate hydraulic pump to be disassembled and inspected is placed on the base 101, the piston rod of the cylinder 201 drives the push plate 202 to push the end cover of the hydraulic pump toward the end cover sleeve 501. During this process, the collar 401 is rotated, and multiple scrapers 402 on the inner wall of the collar 401 are used to scrape off the oil stains on the surface of the end cover. When the end cover of the hydraulic pump is pushed tightly into the end cover sleeve 501 by the push plate 202, the manual gripping lever 502 is used to rotate the end cover sleeve 501, thereby removing the end cover from the slant-plate hydraulic pump. Since the oil stains on the end cover are scraped off, the friction between the end cover and the end cover sleeve 501 is greatly increased, preventing the end cover sleeve 501 from slipping with the end cover when rotating the end cover sleeve 501.

[0026] Reference Figure 2 The push plate 202 is configured as an L-shaped plate. An elastic element 203 is provided on the side of the push plate 202 near the first mounting plate 400. The elastic element 203 is configured as a rubber pad. Multiple elastic elements 203 are provided. The configuration of the L-shaped plate and the elastic element 203 increases the contact area between the push plate 202 and the swashplate hydraulic pump, making the process of the push plate 202 pushing the swashplate hydraulic pump more stable.

[0027] Reference Figure 2 After installing the swashplate hydraulic pump on the base 101, to align the end cap of the swashplate hydraulic pump with the collar 401 and the end cap sleeve 501, it is necessary to manually support the swashplate hydraulic pump, which is quite strenuous. Therefore, a sliding groove 102 is provided on the base 101, and a slider 301 is slidably installed in the sliding groove 102. The slider 301 is provided with a movable plate 304 for supporting the hydraulic pump. The sliding groove 102 is set in an I-shape, and the slider 301 is set in an I-shaped slider. After the swashplate hydraulic pump is disassembled and inspected, in order to achieve the alignment of the slider 301... For the automatic reset of 01, a tension spring 302 is installed in the slide groove 102. The other end of the tension spring 302 is connected to the slider 301. Therefore, after disassembly and inspection, the tension spring 302 pulls the slider 301 to reset, thus installing the slant-plate hydraulic pump on the base 101. The movable plate 304 supports the slant-plate hydraulic pump. When the slant-plate hydraulic pump moves, the friction between the slant-plate hydraulic pump and the movable plate 304 pushes the slider 301 to slide until the end cover of the slant-plate hydraulic pump enters the collar 401 and the end cover sleeve 501.

[0028] Reference Figure 3 In order to achieve automatic rotation of the collar 401, a through groove 404 is provided on the first mounting plate 400. A lever 405 is movably arranged in the through groove 404. The lever 405 is fixedly connected to the collar 401. A compression spring 403 is provided in the through groove 404. The other end of the compression spring 403 is connected to the lever 405. The lever 405 is connected to the slider 301 in a transmission connection.

[0029] Specifically, refer to Figure 3 , Figure 4 A push rod 306 is provided on the side of the slider 301 near the dial plate 405. A wedge block 307 is installed on the end of the push rod 306 near the dial plate 405. The wedge block 307 is correspondingly set with the dial plate 405. Therefore, when the slider 301 slides towards the dial plate 405, the inclined surface of the wedge block 307 abuts against the dial plate 405. The dial plate 405 overcomes the compression spring 403 and drives the collar 401 to rotate. At this time, the end cover of the hydraulic slant disc pump is located inside the collar 401. Multiple scrapers 402 on the inner wall of the collar 401 scrape off the oil stains on the surface of the end cover.

[0030] Additionally, please refer to Figure 4 A fixed plate 303 is provided on the slider 301, and bolts 305 are threadedly installed on the fixed plate 303. The bolts 305 are threadedly connected to the movable plate 304. There is a pair of bolts 305, and the pair of bolts 305 are located on both sides of the fixed plate 303. Therefore, rotating the bolts 305 will change the height of the movable plate 304, thereby realizing the fine adjustment of the height of the movable plate 304, so that the end cover of the swashplate hydraulic pump is more precisely aligned with the collar 401 and the end cover sleeve 501. In addition, by rotating and adjusting the bolts 305 on both sides of the fixed plate 303, the tilt angle of the movable plate 304 can be changed, which also realizes the adjustment of the angle of the swashplate hydraulic pump end cover.

[0031] Additionally, please refer to Figure 5 The opening of the end cap sleeve 501 is provided with a rounded corner. The rounded corner design allows the end cap to enter the end cap sleeve 501 smoothly. In addition, the end cap sleeve 501 is provided with an anti-slip pad 503. In implementation, the anti-slip pad 503 is a sponge pad. The anti-slip pad 503 is used to increase the friction between the end cap sleeve 501 and the end cap, further reducing the possibility of slippage between the end cap sleeve 501 and the end cap.

[0032] Working principle: The hydraulic pump to be disassembled and inspected is placed on the base 101. A slider 301 is slidably installed in the slide groove 102. The slider 301 supports the hydraulic pump body through the movable plate 304. The height and tilt angle of the movable plate 304 can be adjusted by the bolts 305 on both sides to ensure that the end cover is accurately aligned with the collar 401 and the end cover sleeve 501. After the cylinder 201 is started, the piston rod drives the L-shaped push plate 202 to push the hydraulic pump towards the end cover sleeve 501. The inner side of the push plate 202 is provided with multiple sets of rubber elastic elements 203 to increase the contact area and buffer the pressure to prevent the pump body from deviating. When the slider 301 slides, the push rod 306 and the wedge block 307 on its side move synchronously. The inclined surface of the wedge block 307 engages with the lever plate 405 on the first mounting plate 400. When touched, the push plate 405 is rotated to overcome the resistance of the compression spring 403, which drives the collar 401 to rotate. Multiple scrapers 402 on the inner wall of the collar 401 scrape off the oil stains on the surface of the end cover as it rotates. After the end cover is pushed into the end cover sleeve 501, the rounded corners at its opening facilitate the insertion. The sponge material of the internal anti-slip pad 503 fits tightly with the cleaned end cover, increasing the friction. When the manual gripping handle 502 rotates the sleeve, the end cover is unscrewed. After disassembly and inspection, the tension spring 302 pulls the slider 301 to reset. The movable plate 304 is adjusted by the bolt 305 to adapt to different specifications of pump bodies, improving the versatility of the tooling. This tooling achieves automatic oil stain cleaning through the linkage of the scraper 402 and the collar 401, solving the problems of oil stain slippage and positioning difficulties in traditional disassembly.

[0033] 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 tooling for disassembling and inspecting a swashplate-type hydraulic pump, characterized in that: Includes a base (101), on which a cylinder (201) is provided, a push plate (202) is mounted on the piston rod of the cylinder (201), and a scraping mechanism (4) is provided on the base (101); The scraping mechanism (4) includes a first mounting plate (400), which is mounted on the base (101). A collar (401) is rotatably mounted on the first mounting plate (400). A plurality of scrapers (402) are provided on the inner wall of the collar (401). A second mounting plate (500) is also provided on the base (101). An end cap sleeve (501) is provided on the second mounting plate (500). A plurality of handles (502) are provided on the outer side of the end cap sleeve (501).

2. The tooling for disassembling and inspecting a swashplate-type hydraulic pump according to claim 1, characterized in that: The push plate (202) is configured as an L-shaped plate. An elastic element (203) is provided on the side of the push plate (202) close to the first mounting plate (400). The elastic element (203) is configured as a rubber pad, and multiple elastic elements (203) are provided.

3. The tooling for disassembling and inspecting a swashplate-type hydraulic pump according to claim 2, characterized in that: The base (101) has a groove (102) and a slider (301) is slidably installed in the groove (102). The slider (301) is provided with a movable plate (304) for supporting the hydraulic pump. The groove (102) is I-shaped and the slider (301) is I-shaped slider. A tension spring (302) is provided in the groove (102) and the other end of the tension spring (302) is connected to the slider (301).

4. The tooling for disassembling and inspecting a swashplate-type hydraulic pump according to claim 3, characterized in that: The first mounting plate (400) has a through groove (404), and a lever (405) is movably disposed in the through groove (404). The lever (405) is fixedly connected to the collar (401). A compression spring (403) is disposed in the through groove (404). The other end of the compression spring (403) is connected to the lever (405). The lever (405) is kinetically connected to the slider (301).

5. The tooling for disassembling and inspecting a swashplate-type hydraulic pump according to claim 4, characterized in that: A push rod (306) is provided on the side of the slider (301) near the dial plate (405). A wedge block (307) is installed on the end of the push rod (306) near the dial plate (405). The wedge block (307) is correspondingly arranged with the dial plate (405).

6. The tooling for disassembling and inspecting a swashplate-type hydraulic pump according to claim 5, characterized in that: A fixing plate (303) is provided on the slider (301), and a bolt (305) is threadedly installed on the fixing plate (303). The bolt (305) is threadedly connected to the movable plate (304). A pair of bolts (305) are provided, and the pair of bolts (305) are located on both sides of the fixing plate (303).

7. The tooling for disassembling and inspecting a swashplate-type hydraulic pump according to claim 1, characterized in that: The opening of the end cap sleeve (501) is provided with a rounded corner, and an anti-slip pad (503) is provided inside the end cap sleeve (501).

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