High load capacity bidirectional detachable internal gear pump

By employing a plug-in installation mechanism and a shock-absorbing mechanism, the problems of difficult disassembly and low maintenance efficiency of internal gear pumps have been solved, achieving an efficient installation and disassembly process and improving operational convenience and stability.

CN119267217BActive Publication Date: 2025-11-18SENLAN HEAVY IND (TONGLING) CO LTD
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Patent Information

Application Number
CN202411510881.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-11-18
Estimated Expiration
2044-10-28

AI Technical Summary

Technical Problem

The existing internal gear pump is difficult to disassemble during long-term operation, which affects the convenience of operation and leads to low maintenance efficiency.

Method used

A high-load-bearing bidirectional detachable internal gear pump was designed, employing a plug-in installation mechanism and a shock-absorbing mechanism, including mounting feet, guide strips, inner support plates, anti-slip blocks, limit plates, hydraulic buffer rods, etc., to achieve stable installation and quick disassembly.

Benefits of technology

It improves ease of operation and maintenance efficiency, ensures a stable installation and disassembly process, reduces the impact of vibration, and enhances operational stability.

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Abstract

The application discloses a high-bearing bidirectional detachable internal gear pump, relates to the technical field of internal gear pumps, and comprises an internal gear pump mechanism, the bottom of the internal gear pump mechanism is provided with a mounting mechanism, and the bottom of the mounting mechanism is uniformly provided with a plurality of damping mechanisms. The mounting foot is slidably mounted on the inner side of the sliding mounting seat, is slidably connected between the guide strip and the inner support plate, and is matched with the anti-skid block, so that the resistance is improved, the stable installation is guaranteed, the mounting foot can be limited at both ends through the limiting plate during installation, the mounting foot is conveniently fixed, the side limiting strip is limited at the position of the butt joint groove, the side limiting block is limited at the position of the sliding support groove, the stability of the limiting is improved, the right-angle limiting block is insertedly connected at the inner side of the limiting hole and the positioning hole, the stable limiting function is effectively realized, and the plug-in design improves the operation efficiency and guarantees the stable operation function.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of internal gear pumps, in particular to a high-load bidirectional detachable internal gear pump. BACKGROUND

[0002] The internal gear pump is suitable for conveying Newtonian liquid or non-Newtonian liquid in the petroleum, chemical, coating, dye, food, oil, and medicine industries, and the type of liquid conveyed can range from light and volatile liquid to heavy and viscous liquid, and even semi-solid liquid.

[0003] In the prior art, such as patent application No. CN202220541087.3, a high-load bidirectional detachable internal gear pump includes a pump shell, a runner is installed inside the pump shell and is positioned and mounted on the pump shaft through a key; the bearing capacity of the bearing is improved and the shaft disturbance is reduced by setting front and rear bearings; in order to further improve the pressure and load capacity of the pump, a sliding bearing is installed behind the runner, which limits the shaft disturbance under higher pressure, greatly improving the service life of the pump; in order to prevent the temperature inside the pump shell from being conducted to the mechanical seal and bearing box, a thermal isolation zone is provided on the rear cover, so that the heat conducted from the pump shell is quickly reduced through the cooling of the environment when passing through the thermal isolation zone, thereby allowing the pump to be applied in high-temperature environments; the front and rear can be disassembled by using a bearing isolation sleeve and a rear cover inner hole diameter greater than the outer diameter of the mechanical seal, thereby facilitating on-site quick maintenance.

[0004] The existing internal gear pump has a large internal gear wear after long-term operation, so that disassembly and maintenance work is required, but the disassembly is difficult, which affects the convenience of operation, and thus reduces the efficiency of maintenance. To solve the above problems, a high-load bidirectional detachable internal gear pump is proposed. SUMMARY

[0005] The present application aims to provide a high-load bidirectional detachable internal gear pump to solve the problem of difficult disassembly during operation of the prior art, which affects the convenience of operation and thus reduces the efficiency of maintenance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-load-bearing bidirectional detachable internal gear pump, comprising an internal gear pump mechanism, an installation mechanism at the bottom of the internal gear pump mechanism, and multiple shock-absorbing mechanisms evenly distributed at the bottom of the installation mechanism. The internal gear pump mechanism includes a motor and a housing, an external gear on the inner side of the housing, and an internal gear meshing with the inner side of the external gear. A first detachable end cover is provided at one end of the housing, and a second detachable end cover is provided at the other end of the housing. Support frames are installed on the outer sides of both the motor and the housing. The motor drives the housing to rotate, enabling the pump to operate normally and achieve the pumping function. The external gear and the internal gear can achieve the transmission function. The first and second detachable end covers facilitate bidirectional detachment, thereby improving the ease of operation.

[0007] The mounting mechanism includes mounting feet, with each support frame mounted on top of the mounting feet. Guide strips are symmetrically arranged on both sides of the mounting feet. Docking slots are formed at both ends of the mounting feet. A sliding base is connected to the outer side of the mounting feet. An inner support plate is provided on the inner side of the sliding base. Multiple anti-slip blocks are evenly distributed on the surface of the inner support plate. Sliding support grooves are symmetrically arranged on the inner side of the sliding base. Limiting plates are installed at both ends of the sliding base. A side limiting strip is fixedly installed on one side of each limiting plate. Side limiting blocks are symmetrically arranged on one side of each limiting plate. The side limiting strip is snapped into the inner side of the docking slot. The side limiting block is snapped into the inner side of the sliding support groove. One end of the side limiting block abuts against both ends of the mounting feet. Fasteners are provided at both ends of the limiting plates. Right-angle limiting blocks penetrate the inner side of each fastener. The sliding base has symmetrical openings at both ends. The fastener has a limiting hole, with one end of the right-angle limiting block penetrating and connecting to the inner side of the limiting hole. A positioning hole is provided on the side of the fastener, allowing it to slide on the inner side of the sliding base via mounting feet. It is slidably connected to the inner support plate via a guide strip, and the anti-slip block helps increase resistance, thus ensuring stable installation. During installation, the limiting plate can limit the fastener at both ends, facilitating the fixing of the mounting feet. The side limiting strip limits the position of the mating groove, and the side limiting block limits the position of the sliding support groove, thus improving the stability of the limiting. The right-angle limiting block is inserted and connected to the inner side of the limiting hole and the positioning hole, effectively achieving a stable limiting function and ensuring that the limiting plate is tightly connected to both ends of the sliding base. The plug-in design improves operational efficiency, ensures stable operation, facilitates quick installation and disassembly, and improves maintenance and inspection efficiency.

[0008] Preferably, the shock absorption mechanism includes a mounting plate, on the bottom of which multiple hydraulic buffer rods are evenly distributed. Buffer springs are sleeved on the outer sides of the hydraulic buffer rods, and spring plates are connected to both ends of the bottom of the mounting plate. The mounting plate, in conjunction with the base plate, provides installation support. Simultaneously, the hydraulic buffer rods, buffer springs, and spring plates provide cushioning when supported at the bottom, thereby improving stability during use, ensuring stable support, and reducing the impact of vibration on the external environment.

[0009] Preferably, a controller is fixedly installed on the top of the motor, and a drive shaft is provided at one end of the motor. The motor can be driven by controlling the controller, which helps to improve the installation stability.

[0010] Preferably, one end of the drive shaft is connected to a connecting shaft, and one end of the connecting shaft is connected to a transmission shaft. The transmission shaft is connected to one end of the housing. The connecting shaft and the transmission shaft work together to provide transmission, thereby achieving a stable transmission effect.

[0011] Preferably, an inner support frame is provided on the inner side of the mounting foot, and multiple mounting holes are symmetrically opened through the top of the mounting foot. The inner support frame provides an internal support function, and the mounting holes provide a limiting and fixing function, which helps to ensure the overall stability.

[0012] Preferably, limiting fasteners are symmetrically installed on both sides of the sliding base, and the fasteners are movably inserted through the inner side of the limiting fasteners. The limiting fasteners provide a limiting function, thereby improving the ease of disassembly.

[0013] Preferably, a limiting rail is fixedly installed on the outer side of the limiting fastener, and the other end of the right-angle limiting block is movably connected to the inner side of the limiting rail. A spring is connected to the outer side of the right-angle limiting block, and one end of the spring is connected to the inside of the limiting rail. The limiting rail provides guidance for the right-angle limiting block, and the spring facilitates pushing the right-angle limiting block through the limiting hole to achieve the limiting function.

[0014] Preferably, the surface of the limiting rail is symmetrically provided with sliding rail grooves, and the other end of the right-angle limiting block is movably connected to the inner side of the sliding rail groove. The sliding rail groove helps to further realize the limiting function, ensures the stability of the movement of the right-angle limiting block, and improves the stability of the limiting.

[0015] Preferably, the bottom of the spring sheet is connected to a base plate, and the bottoms of the hydraulic buffer rod and the buffer spring are both connected to the surface of the base plate. The base plate can provide a stable support for installation, thereby ensuring the overall stability.

[0016] Preferably, the bottom mounting plate is connected to both ends with mounting strips, and the inner side of the mounting strips is provided with multiple fixing holes. The mounting strips and fixing holes facilitate the installation operation with bolts, thereby improving the stability of the installation.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the mounting feet are slidably installed on the inner side of the sliding base, and are slidably connected to the inner support plate via guide strips. The anti-slip block further enhances resistance, ensuring stable installation. During installation, the mounting feet are fixed at both ends by limiting plates, facilitating fixation. Side limiting strips limit the position of the mating groove, and side limiting blocks limit the position of the sliding support groove, improving the stability of the limiting. Right-angle limiting blocks are inserted into the inner sides of the limiting hole and positioning hole, effectively achieving stable limiting functionality and ensuring the limiting plate is tightly connected to both ends of the sliding base. The plug-in design improves operational efficiency, ensures stable operation, facilitates quick installation and disassembly, and enhances maintenance and inspection efficiency.

[0019] 2. In this invention, the mounting plate, in conjunction with the base plate, provides installation support. At the same time, the hydraulic buffer rod, buffer spring, and spring sheet provide cushioning when supported at the bottom, thereby improving stability during use, ensuring stable support, and reducing the impact of vibration on the outside world. The base plate provides a stable support for installation, thus ensuring overall stability. Attached Figure Description

[0020] Figure 1 This is a perspective view of a high-load-bearing bidirectional detachable internal gear pump according to the present invention;

[0021] Figure 2 This is a schematic diagram of another angle of the high load-bearing bidirectional detachable internal gear pump of the present invention;

[0022] Figure 3 This is a cross-sectional structural schematic diagram of a high-load-bearing bidirectional detachable internal gear pump according to the present invention;

[0023] Figure 4 This is a partially exploded structural diagram of a high-load-bearing bidirectional detachable internal gear pump according to the present invention.

[0024] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A;

[0025] Figure 6 This is an exploded structural diagram of the mounting mechanism of a high-load-bearing bidirectional detachable internal gear pump according to the present invention.

[0026] Figure 7This is a schematic diagram of the buffer mechanism structure of a high-load-bearing bidirectional detachable internal gear pump according to the present invention.

[0027] In the picture:

[0028] 1. Internal gear pump mechanism; 101. Electric motor; 102. Controller; 103. Drive shaft; 104. Connecting shaft; 105. Transmission shaft; 106. Housing; 107. External gear; 108. Internal gear; 109. First detachable end cover; 110. Second detachable end cover; 2. Mounting mechanism; 201. Mounting foot; 202. Guide strip; 203. Docking groove; 204. Internal support frame; 205. Mounting hole; 206. Sliding seat; 207. Internal support plate; 208. Anti-slip block; 20 9. Sliding support groove; 210. Limiting fastener; 211. Limiting rail; 212. Spring component; 213. Right angle limiting block; 214. Limiting hole; 215. Sliding rail groove; 216. Positioning hole; 217. Limiting plate; 218. Side limiting strip; 219. Side limiting block; 220. Fastener; 3. Shock absorption mechanism; 301. Mounting plate; 302. Hydraulic buffer rod; 303. Buffer spring; 304. Spring sheet; 305. Bottom mounting plate; 306. Mounting strip; 307. Fixing hole. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figures 1-7 As shown: A high-load-bearing bidirectional detachable internal gear pump includes an internal gear pump mechanism 1. An installation mechanism 2 is provided at the bottom of the internal gear pump mechanism 1. Multiple shock-absorbing mechanisms 3 are evenly distributed at the bottom of the installation mechanism 2. The internal gear pump mechanism 1 includes a motor 101 and a housing 106. An external gear 107 is provided on the inner side of the housing 106, and an internal gear 108 is meshed with the inner side of the external gear 107. A first detachable end cover 109 is provided at one end of the housing 106, and a second detachable end cover 110 is provided at the other end. Support frames are installed on the outer sides of both the motor 101 and the housing 106. The motor 101 drives the housing 106 to rotate, enabling the pump to operate normally and achieve the pumping function. The external gear 107, in conjunction with the internal gear 108, enables transmission. The first detachable end cover 109 and the second detachable end cover 110 facilitate bidirectional detachment, thereby improving operational convenience.

[0031] The mounting mechanism 2 includes mounting feet 201, with support frames mounted on top of the mounting feet 201. Guide strips 202 are symmetrically arranged on both sides of the mounting feet 201. Docking slots 203 are provided at both ends of the mounting feet 201. A sliding seat 206 is connected to the outer side of the mounting feet 201. An inner support plate 207 is provided on the inner side of the sliding seat 206. Multiple anti-slip blocks 208 are evenly distributed on the surface of the inner support plate 207. Sliding support grooves 209 are symmetrically arranged on the inner side of the sliding seat 206. Limit plates 217 are installed at both ends of the sliding seat 206. A side limiting strip 218 is fixedly installed on one side of the limiting plate 217, and side limiting blocks 219 are symmetrically arranged on one side of the limiting plate 217. The side limiting strip 218 is snapped into the inner side of the mating groove 203, and the side limiting block 219 is snapped into the inner side of the sliding support groove 209. One end of the side limiting block 219 abuts against both ends of the mounting foot 201. Fasteners 220 are provided at both ends of the limiting plate 217, and right-angle limiting blocks 213 are connected through the inner side of the fasteners 220. The sliding seat 206 has symmetrical openings at both ends. A limiting hole 214 is provided, and one end of a right-angle limiting block 213 is connected through the inner side of the limiting hole 214. A positioning hole 216 is provided through the side of the fastener 220. It is slidably installed on the inner side of the sliding base 206 by the mounting foot 201. It is slidably connected to the inner support plate 207 by the guide strip 202, and the anti-slip block 208 helps to increase resistance, thereby ensuring stable installation. At the same time, during installation, it can be limited at both ends by the limiting plate 217, which facilitates the fixing of the mounting foot 201, and the side limiting is also provided. The 218 limiter is positioned at the docking slot 203, and the side limiter 219 is positioned at the sliding support slot 209, thereby improving the stability of the limiter. The right-angle limiter 213 is inserted and connected to the inside of the limiter hole 214 and the positioning hole 216, thereby effectively achieving a stable limiter function. This ensures that the limiter plate 217 is tightly connected to both ends of the sliding base 206. The plug-in design improves operational efficiency, ensures stable operation, facilitates quick installation and disassembly, and improves maintenance and inspection efficiency.

[0032] like Figure 7 As shown, the shock absorption mechanism 3 includes a mounting plate 301. Multiple hydraulic buffer rods 302 are evenly distributed on the bottom of the mounting plate 301. Buffer springs 303 are sleeved on the outer side of the hydraulic buffer rods 302. Spring plates 304 are connected to both ends of the bottom of the mounting plate 301. The mounting plate 301, in conjunction with the bottom mounting plate 305, provides installation support. At the same time, the hydraulic buffer rods 302, buffer springs 303, and spring plates 304 provide buffering when supported at the bottom, thereby improving stability during use, ensuring stable support, and reducing the impact of vibration on the external environment.

[0033] like Figures 1-3As shown, a controller 102 is fixedly installed on the top of the motor 101, and a drive shaft 103 is provided at one end of the motor 101. The motor 101 can be driven by controlling the controller 102, which helps to improve the installation stability.

[0034] like Figures 1-3 As shown, one end of the drive shaft 103 is connected to the connecting shaft 104, and one end of the connecting shaft 104 is connected to the transmission shaft 105. The transmission shaft 105 is connected to one end of the housing 106. The connecting shaft 104 and the transmission shaft 105 work together to provide transmission, thereby achieving a stable transmission effect.

[0035] like Figure 6 As shown, an inner support frame 204 is provided on the inner side of the mounting foot 201, and multiple mounting holes 205 are symmetrically opened through the top of the mounting foot 201. The inner support frame 204 provides an inner support function, and the mounting holes 205 provide a limiting and fixing function, which helps to ensure the overall stability.

[0036] like Figure 6 As shown, limit fasteners 210 are symmetrically installed on both sides of the sliding base 206. Fasteners 220 are movably inserted through the inner side of the limit fasteners 210. The limit fasteners 210 provide a limiting function, thereby improving the ease of disassembly.

[0037] like Figure 5 As shown, a limiting rail 211 is fixedly installed on the outer side of the limiting fastener 210, and the other end of the right-angle limiting block 213 is movably connected to the inner side of the limiting rail 211. A spring 212 is connected to the outer side of the right-angle limiting block 213, and one end of the spring 212 is connected to the inside of the limiting rail 211. The limiting rail 211 provides a guiding function for the right-angle limiting block 213, and at the same time, the spring 212 facilitates pushing the right-angle limiting block 213 into the interior of the limiting hole 214 to achieve the limiting function.

[0038] like Figure 5 As shown, the surface of the limiting rail 211 is symmetrically provided with sliding rail grooves 215. The other end of the right-angle limiting block 213 is movably connected to the inner side of the sliding rail groove 215. The sliding rail groove 215 helps to further realize the limiting function, ensures the stability of the movement of the right-angle limiting block 213, and improves the stability of the limiting.

[0039] like Figure 7 As shown, the bottom of the spring sheet 304 is connected to the base plate 305, and the bottoms of the hydraulic buffer rod 302 and the buffer spring 303 are both connected to the surface of the base plate 305. The base plate 305 can provide a stable support for installation, thereby ensuring the overall stability.

[0040] like Figure 4As shown, mounting strips 306 are connected to both ends of the base plate 305. Multiple fixing holes 307 are provided through the inner side of the mounting strips 306. The mounting strips 306 and fixing holes 307 facilitate the installation operation with bolts and improve the stability of the installation.

[0041] In this invention, the high-load-bearing bidirectional detachable internal gear pump operates by first driving the housing 106 to rotate via the motor 101, enabling normal pumping. The external gear 107 engages with the internal gear 108 for transmission, and the connecting shaft 104 engages with the transmission shaft 105 for further transmission, achieving stable transmission. The first detachable end cover 109 and the second detachable end cover 110 facilitate bidirectional detachment, improving operational convenience. The mounting feet 201 slide on the inner side of the sliding base 206, and are slidably connected to the inner support plate 207 via the guide strip 202, with the anti-slip block 208 enhancing resistance and ensuring stable installation. During installation, the limiting plate 217 limits the mounting feet 201 at both ends, facilitating their fixation. Meanwhile, the side... The limiting strip 218 is positioned at the docking groove 203, and the side limiting block 219 is positioned at the sliding support groove 209, thereby improving the stability of the limiting. The right-angle limiting block 213 is inserted and connected to the inside of the limiting hole 214 and the positioning hole 216, thereby effectively achieving a stable limiting function. This ensures that the limiting plate 217 is tightly connected to both ends of the sliding base 206. The plug-in design improves operational efficiency, ensures stable operation, facilitates quick installation and disassembly, and improves maintenance and inspection efficiency. The mounting plate 301, in conjunction with the bottom mounting plate 305, provides installation support. At the same time, the hydraulic buffer rod 302, buffer spring 303, and spring plate 304 provide a buffering effect when supported at the bottom, thereby improving stability during use, ensuring stable support, and reducing the impact of vibration on the outside world.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-load-bearing bidirectional detachable internal gear pump, comprising an internal gear pump mechanism (1), characterized in that: The bottom of the internal gear pump mechanism (1) is provided with an installation mechanism (2), and multiple shock-absorbing mechanisms (3) are evenly distributed at the bottom of the installation mechanism (2). The internal gear pump mechanism (1) includes a motor (101) and a housing (106). An external gear (107) is provided on the inner side of the housing (106), and an internal gear (108) is meshed on the inner side of the external gear (107). A first detachable end cover (109) is provided at one end of the housing (106), and a second detachable end cover (110) is provided at the other end of the housing (106). Support frames are installed on the outer sides of both the motor (101) and the housing (106). The mounting mechanism (2) includes mounting feet (201), and the support frames are all mounted on the top of the mounting feet (201). Guide strips (202) are symmetrically arranged on both sides of the mounting feet (201). The mounting feet (201) have mating grooves (203) at both ends. A sliding seat (206) is connected to the outer side of the mounting feet (201). An inner support plate (207) is provided on the inner side of the sliding seat (206). Multiple anti-slip blocks (208) are evenly distributed on the surface of the inner support plate (207). Sliding support grooves (209) are symmetrically arranged on the inner side of the sliding seat (206). Limiting plates (217) are installed at both ends of the sliding seat (206). A side limiting strip (218) is fixedly installed on one side of the limiting plate (217). A side limiting block (219) is symmetrically arranged on one side of the limiting plate (217). The side limiting strip (218) is snapped into the inner side of the docking groove (203). The side limiting block (219) is snapped into the inner side of the sliding support groove (209). One end of the side limiting block (219) abuts against both ends of the mounting foot (201). Fasteners (220) are provided at both ends of the limiting plate (217). A right-angle limiting block (213) is connected through the inner side of the fastener (220). Limiting holes (214) are symmetrically opened at both ends of the sliding seat (206). One end of the right-angle limiting block (213) is connected through the inner side of the limiting hole (214). A positioning hole (216) is opened through the side of the fastener (220). Limiting fasteners (210) are symmetrically installed on both sides of the sliding base (206), and the fastener (220) is movably inserted through the inner side of the limiting fastener (210); a limiting rail (211) is fixedly installed on the outer side of the limiting fastener (210), and the other end of the right-angle limiting block (213) is movably connected to the inner side of the limiting rail (211). A spring (212) is connected to the outer side of the right-angle limiting block (213), and one end of the spring (212) is connected to the inside of the limiting rail (211).

2. The high-load-bearing bidirectional detachable internal gear pump according to claim 1, characterized in that: The shock absorption mechanism (3) includes a mounting plate (301), a plurality of hydraulic buffer rods (302) are evenly distributed on the bottom of the mounting plate (301), a buffer spring (303) is sleeved on the outside of the hydraulic buffer rod (302), and spring plates (304) are connected to both ends of the bottom of the mounting plate (301).

3. The high-load-bearing bidirectional detachable internal gear pump according to claim 1, characterized in that: A controller (102) is fixedly mounted on the top of the motor (101), and a drive shaft (103) is provided at one end of the motor (101).

4. The high-load-bearing bidirectional detachable internal gear pump according to claim 3, characterized in that: One end of the drive shaft (103) is connected to a connecting shaft (104), and one end of the connecting shaft (104) is connected to a transmission shaft (105). The transmission shaft (105) is connected to one end of the housing (106).

5. The high-load-bearing bidirectional detachable internal gear pump according to claim 1, characterized in that: An inner support frame (204) is provided on the inner side of the mounting foot (201), and a plurality of mounting holes (205) are symmetrically opened through the top of the mounting foot (201).

6. The high-load-bearing bidirectional detachable internal gear pump according to claim 1, characterized in that: The surface of the limiting rail (211) is symmetrically provided with sliding rail grooves (215), and the other end of the right-angle limiting block (213) is movably connected to the inner side of the sliding rail groove (215).

7. The high-load-bearing bidirectional detachable internal gear pump according to claim 2, characterized in that: The bottom of the spring sheet (304) is connected to a base plate (305), and the bottoms of the hydraulic buffer rod (302) and the buffer spring (303) are both connected to the surface of the base plate (305).

8. The high-load-bearing bidirectional detachable internal gear pump according to claim 7, characterized in that: The bottom mounting plate (305) is connected to two ends with mounting strips (306), and multiple fixing holes (307) are provided through the inner side of the mounting strips (306).

Citation Information

Patent Citations

  • Bidirectional compound gear pump

    CN216361215U

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    CN217783768U