Hydraulic gear pump

Abstract

The utility model belongs to the technical field of hydraulic pumps, and particularly relates to a hydraulic gear pump which comprises a fixing plate, one side of the top of the fixing plate is movably connected with a motor, and the other side of the top of the fixing plate is movably connected with a hydraulic gear pump assembly. The hydraulic gear pump assembly comprises a bearing plate, a sliding plate is slidably mounted at the top of the bearing plate, a limiting buckle is arranged on one side of the sliding plate, an angle adjusting assembly is arranged in the middle of the sliding plate, an air compression rod is arranged on one side of the angle adjusting assembly, an external frame is arranged at the top of the angle adjusting assembly, and a gear pump is arranged in the external frame. A sliding connecting frame is arranged at the position, close to the output end, of the gear pump, the position, away from the output end, of the gear pump is rotationally connected with the external frame, and a lifting assembly is arranged at the top of the external frame. According to the hydraulic gear pump, after the hydraulic gear pump is connected with the motor, the insertion angle position of the connecting rod of the hydraulic gear pump can be adjusted, so that the hydraulic gear pump adapts to the motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic pumps, and in particular relates to a hydraulic gear pump. Background Art

[0002] Hydraulic gear pump is a commonly used hydraulic pump that uses the rotation of gears to generate liquid flow. It is widely used in hydraulic systems. Hydraulic gear pumps are generally driven by motors when in use. There are two common ways to connect them to the motor: hard connection and soft connection.

[0003] Problems with existing technologies:

[0004] In the case of hard connection, the connecting rod is connected to the output end of the motor through the gear inside the hydraulic gear pump, and then the threaded hole reserved in the motor is threadedly connected to the threaded hole reserved on the surface of the hydraulic gear pump for fixation. Due to production errors and other reasons, there will often be different degrees of concentricity deviation when the connecting rod is plugged into the motor. Utility Model Content

[0005] The utility model aims to provide a hydraulic gear pump, which can adjust the plugging angle position of the hydraulic gear pump connecting rod after the hydraulic gear pump is connected to the motor, so that the hydraulic gear pump can adapt to the motor.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] A hydraulic gear pump comprises: a fixed plate, a motor is movably connected to one side of the top of the fixed plate, and a hydraulic gear pump assembly is movably connected to the other side of the top of the fixed plate;

[0008] The hydraulic gear pump assembly includes a carrying plate, a sliding plate is slidably installed on the top of the carrying plate, a limiting buckle is provided on one side of the sliding plate, an angle adjustment assembly is provided in the middle position of the sliding plate, a pressure rod is provided on one side of the angle adjustment assembly, an external frame is provided on the top of the angle adjustment assembly, a gear pump is provided inside the external frame, a sliding connecting frame is provided near the output end of the gear pump, the gear pump is rotatably connected to the external frame at a position away from the output end, a lifting assembly is provided on the top of the external frame, a lifting frame is provided on the top of the carrying plate, and the end of the lifting frame is slidably installed with the sliding connecting frame.

[0009] The angle adjustment assembly includes a rotating large gear, a supporting shaft is fixedly connected to the middle position of the rotating large gear, and both ends of the supporting shaft are fixedly connected to the external frame and the sliding plate respectively; the sliding plate is rotatably installed with a rotating shaft on one side corresponding to the rotating large gear, and the rotating shaft is fixedly connected to a rotating small gear at a position corresponding to the rotating large gear, and the rotating small gear is meshed with the rotating large gear; the lower end of the rotating shaft is fixedly connected to bevel gear 2, and the sliding plate is rotatably connected to a rotating column at a position corresponding to bevel gear 2, and the end of the rotating column is fixedly connected to bevel gear 1, and bevel gear 1 is meshed with bevel gear 2.

[0010] The rotating column is fixedly connected to a limited polygonal block at a position corresponding to the outer surface of the sliding plate, and a plug hole is provided at a position corresponding to the limited polygonal block of the sliding plate. The limited polygonal block is plug-connected to the plug hole, and a reset spring is fixedly connected to the limited polygonal block and the inner wall of the plug hole.

[0011] The lifting assembly includes a lifting rod 1, the two ends of which are rotatably connected to a lifting rod 2 and a lifting rod 3, the end of the lifting rod 2 is rotatably connected to a lifting rod 4, and the end of the lifting rod 4 is rotatably connected to the lifting rod 3.

[0012] The intersection coupling of the lifting rod 1 and the lifting rod 2 is threadedly connected with a connecting screw 1, and the end of the connecting screw 1 is threadedly connected to the gear pump. A connecting screw 2 is also provided between the lifting rod 3 and the lifting rod 4. A connecting block is provided at the position of the sliding plate corresponding to the connecting screw 2, and the end of the connecting screw 2 is threadedly connected to the connecting block. The intersection coupling of the lifting rod 1 and the lifting pin 1 is rotatably connected with the lifting pin 1. A lifting pin 2 is also provided between the lifting rod 2 and the lifting rod 4, and a lifting threaded rod is threadedly connected between the lifting pin 1 and the lifting pin 2.

[0013] The technical effects achieved by this utility model are:

[0014] According to the utility model, after the hydraulic gear pump is connected to the motor, the plugging angle position of the connecting rod of the hydraulic gear pump is adjusted so that the hydraulic gear pump can adapt to the motor.

[0015] The utility model can readjust the hydraulic gear pump and the motor according to the sound and vibration after they have started working, and can be fine-tuned by the lifting assembly and the angle adjustment assembly until the desired effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural diagram of disassembling the hydraulic gear pump assembly in the utility model;

[0018] Figure 3 It is a structural diagram of the hydraulic gear pump assembly in the utility model;

[0019] Figure 4 This is a structural diagram of the angle adjustment component in the utility model;

[0020] Figure 5 It is a structural diagram of the lifting component in the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Fixed plate; 2. Motor; 3. Hydraulic gear pump assembly; 301. Loading plate; 302. Sliding plate; 303. Limiting buckle; 304. Air pressure rod; 305. Sliding connecting frame; 306. External frame; 307. Gear pump; 308. Lifting frame; 310. Lifting assembly; 311. Lifting rod one; 312. Lifting rod two; 313. Lifting rod three; 314. Lifting rod four; 315. Lifting pin one; 316. Lifting pin two; 317. Lifting threaded rod; 318. Connecting screw one; 319. Connecting screw two; 320. Angle adjustment assembly; 321. Rotating large gear; 322. Rotating small gear; 323. Limiting polygonal block; 324. Return spring; 325. Bevel gear one; 326. Bevel gear two; 327. Rotating shaft; 328. Support shaft; 329. Rotating column. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0024] like Figure 1 - Figure 3 As shown, a hydraulic gear pump comprises: a fixed plate 1, a motor 2 is movably connected to one side of the top of the fixed plate 1, and a hydraulic gear pump assembly 3 is movably connected to the other side of the top of the fixed plate 1;

[0025] The hydraulic gear pump assembly 3 includes a supporting plate 301, a sliding plate 302 is slidably installed on the top of the supporting plate 301, a limiting buckle 303 is provided on one side of the sliding plate 302, an angle adjustment assembly 320 is provided in the middle position of the sliding plate 302, a pressure rod 304 is provided on one side of the angle adjustment assembly 320, an external frame 306 is provided on the top of the angle adjustment assembly 320, a gear pump 307 is provided inside the external frame 306, a sliding connecting frame 305 is provided near the output end of the gear pump 307, the gear pump 307 is rotatably connected to the external frame 306 at a position away from the output end, a lifting assembly 310 is provided on the top of the external frame 306, a lifting frame 308 is provided on the top of the supporting plate 301, and the end of the lifting frame 308 is slidably installed with the sliding connecting frame 305.

[0026] Among them, when using the hydraulic gear pump, first place the hydraulic gear pump assembly 3 on the fixed plate 1 so that the connecting rod of the hydraulic gear pump is inserted into the output end of the motor 2, and then fix the supporting plate 301 with screws. At this time, observation and adjustment are carried out. During this period, the gear pump 307 can be moved by sliding the sliding plate 302, and the height of the external frame 306 can be adjusted by pressing the air rod 304. The angle can be adjusted by the angle adjustment assembly 320 and the lifting assembly 310. When the adjustment is completed, start the motor and adjust it again according to the sound and vibration level until the requirements are met.

[0027] Refer to the attached Figure 4 The angle adjustment assembly 320 includes a rotating large gear 321, a support shaft 328 is fixedly connected to the middle position of the rotating large gear 321, and the two ends of the support shaft 328 are fixedly connected to the external frame 306 and the sliding plate 302 respectively. A rotating shaft 327 is rotatably installed on one side of the sliding plate 302 corresponding to the rotating large gear 321, and the rotating shaft 327 is fixedly connected to a rotating small gear 322 at the position corresponding to the rotating large gear 321. The rotating small gear 322 is meshed with the rotating large gear 321, and the lower end of the rotating shaft 327 is fixedly connected to the bevel gear 32 6. The sliding plate 302 is rotatably connected to the position of the bevel gear 2 326, and the end of the rotating column 329 is fixedly connected to the bevel gear 1 325. The bevel gear 1 325 is meshed with the bevel gear 2 326. The rotating column 329 is fixedly connected to the position of the outer surface of the sliding plate 302 to the limited polygonal block 323. The sliding plate 302 is provided with a plug-in hole at the position corresponding to the limited polygonal block 323. The limited polygonal block 323 is plugged into the plug-in hole. The limited polygonal block 323 is rotatably connected to the inner wall of the plug-in hole via a reset spring 324.

[0028] When the bevel gear 322 is in the state of rotation and the gear 321 is rotated, the rotation shaft 327 is rotated, and the rotation of the bevel gear 322 and the large gear 321 is driven by the bevel gear 326. The rotation of the support shaft 328 drives the external frame 306 and the gear pump 307 to adjust the angle. Alternatively, the gear pump 307 can be manually rotated after the bevel gear 326 is pulled out for adjustment. After the adjustment is completed, the bevel gear 326 is released to limit it. Due to the huge difference in diameter between the rotating pinion 322 and the rotating large gear 321, the adjustment accuracy can be relatively increased. An air bag is provided inside the support shaft 328, and the air bag is inflated and deflated by the air pressure rod 304. When inflated, the support shaft 328 moves upward, and vice versa.

[0029] Refer to the attached Figure 5 The lifting assembly 310 includes a lifting rod 1 311, and the two ends of the lifting rod 1 311 are respectively connected to the lifting rod 2 312 and the lifting rod 3 313. The end of the lifting rod 2 312 is connected to the lifting rod 4 314, and the end of the lifting rod 4 314 is connected to the lifting rod 3 313. The joint of the lifting rod 1 311 and the lifting rod 2 312 is connected to the connecting screw 1 318 through a thread. The end of the connecting screw 1 318 is connected to the gear pump 307 through a thread. The lifting rod 313 is connected to the lifting rod 313 through a thread. A connecting screw 2 319 is also provided between the lowering rod 4 314, and a connecting block is provided at the position of the sliding plate 302 corresponding to the connecting screw 2 319. The end of the connecting screw 2 319 is threadedly connected to the connecting block, and the joint coupling between the lifting rod 1 311 and the lifting pin 1 315 is rotatably connected with the lifting pin 1 315. A lifting pin 2 316 is also provided between the lifting rod 2 312 and the lifting rod 4 314, and a lifting threaded rod 317 is threadedly connected between the lifting pin 1 315 and the lifting pin 2 316.

[0030] According to the above structure, when it is necessary to adjust the up and down angles of the connecting rod of the gear pump 307, the distance between the connecting screw 1 318 and the connecting screw 2 319 can be changed by rotating the lifting threaded rod 317, so that the gear pump 307 drives the end of the gear pump 307 close to the output end to move up and down, and then the end away from the output end rotates, and then cooperates with the lifting and lowering of the air compressor rod 304 to make the connecting rod of the gear pump 307 and the motor plug-in remain vertically horizontal.

[0031] The working principle of the present invention is as follows: when using the hydraulic gear pump, first place the hydraulic gear pump assembly 3 on the fixed plate 1 so that the connecting rod of the hydraulic gear pump is inserted into the output end of the motor 2, and then fix the supporting plate 301 with screws. At this time, observation and adjustment are carried out. During this period, the gear pump 307 can be moved by sliding the sliding plate 302, and the height of the external frame 306 can be adjusted by pressing the air pressure rod 304. The angle of the frame 306 can be adjusted by the angle adjustment assembly 320 and the lifting assembly 310. After the adjustment is completed, start the motor and adjust it again according to the sound and vibration level until the requirements are met.

[0032] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A hydraulic gear pump, characterized in that: include: A fixed plate (1), wherein one side of the top of the fixed plate (1) is movably connected to a motor (2), and the other side of the top of the fixed plate (1) is movably connected to a hydraulic gear pump assembly (3); The hydraulic gear pump assembly (3) comprises a bearing plate (301), a sliding plate (302) is slidably mounted on the top of the bearing plate (301), a limiting buckle (303) is provided on one side of the sliding plate (302), an angle adjustment assembly (320) is provided at the middle position of the sliding plate (302), a pressure rod (304) is provided on one side of the angle adjustment assembly (320), an external frame (306) is provided on the top of the angle adjustment assembly (320), a gear pump (307) is provided inside the external frame (306), a sliding connecting frame (305) is provided at a position of the gear pump (307) close to the output end, the gear pump (307) is rotatably connected to the external frame (306) at a position away from the output end, a lifting assembly (310) is provided on the top of the external frame (306), a lifting frame (308) is provided at the top of the bearing plate (301), and the end of the lifting frame (308) is slidably mounted on the sliding connecting frame (305).

2. A hydraulic gear pump according to claim 1, characterized in that: The angle adjustment assembly (320) includes a rotating large gear (321), a support shaft (328) fixedly connected to the middle position of the rotating large gear (321), and two ends of the support shaft (328) fixedly connected to the external frame (306) and the sliding plate (302), respectively. A rotating shaft (327) is rotatably installed on one side of the sliding plate (302) corresponding to the rotating large gear (321), and a rotating small gear (322) is fixedly connected to the position of the rotating large gear (321) of the rotating shaft (327), and the rotating small gear (322) is meshed with the rotating large gear (321). The lower end of the rotating shaft (327) is fixedly connected to a second bevel gear (326), and the sliding plate (302) is rotatably connected to a rotating column (329) corresponding to the position of the second bevel gear (326). The end of the rotating column (329 is fixedly connected to a first bevel gear (325), and the first bevel gear (325) is meshed with the second bevel gear (326).

3. A hydraulic gear pump according to claim 2, characterized in that: The rotating column (329) is fixedly connected to a limited polygonal block (323) at a position corresponding to the outer surface of the sliding plate (302); a plug hole is provided at a position of the sliding plate (302) corresponding to the limited polygonal block (323); the limited polygonal block (323) is plug-connected to the plug hole; and a return spring (324) is fixedly connected to the inner wall of the plug hole.

4. The hydraulic gear pump according to claim 1, characterized in that: The lifting assembly (310) includes a lifting rod 1 (311), the two ends of the lifting rod 1 (311) are rotatably connected to a lifting rod 2 (312) and a lifting rod 3 (313), the end of the lifting rod 2 (312) is rotatably connected to a lifting rod 4 (314), and the end of the lifting rod 4 (314) is rotatably connected to the lifting rod 3 (313).

5. The hydraulic gear pump according to claim 4, characterized in that: The joint coupling between the lifting rod 1 (311) and the lifting rod 2 (312) is threadedly connected with a connecting screw 1 (318), and the end of the connecting screw 1 (318) is threadedly connected to the gear pump (307). A connecting screw 2 (319) is also provided between the lifting rod 3 (313) and the lifting rod 4 (314). A connecting block is provided at the position corresponding to the connecting screw 2 (319) of the sliding plate (302), and the end of the connecting screw 2 (319) is threadedly connected to the connecting block. The joint coupling between the lifting rod 1 (311) and the lifting pin 1 (315) is rotatably connected with the lifting pin 1 (315). A lifting pin 2 (316) is also provided between the lifting rod 2 (312) and the lifting rod 4 (314), and a lifting threaded rod (317) is threadedly connected between the lifting pin 1 (315) and the lifting pin 2 (316).

Images