CN215213924U

CN215213924U - Internal oil-discharging motor pump

Info

Publication number: CN215213924U
Application number: CN202120722533.6U
Authority: CN
Inventors: 于文清; 叶建丰; 陈晓龙
Original assignee: BODEN HYDRAULICS CO LTD
Current assignee: BODEN HYDRAULICS CO LTD
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-17
Anticipated expiration: 2031-04-09

Abstract

The utility model relates to a motor pump technical field, and disclose inside oil extraction motor pump, which comprises a pump body, the baffle of fixedly connected with matching in the pump body, and the baffle separates the pump body is inside from a left side to the right side in proper order for hydraulic pressure chamber and oil absorption chamber, the fixed intercommunication of position department that the baffle is close to the bottom has an oil extraction section of thick bamboo, the ring channel has been seted up on the inner tube wall of oil extraction section of thick bamboo, be equipped with annular oil blanket in the ring channel, one side of annular oil blanket is laminated mutually with the one end of ring channel, the opposite side of annular oil blanket is connected with the oil extraction section of thick bamboo through elastic mechanism, fixed intercommunication has back oil pipe on the baffle, it is located oil extraction section of thick bamboo top setting to return oil pipe, and fixed mounting has the one-way oil valve of matching on returning oil pipe. The utility model discloses make the motor pump possess good inside oil extraction pressure release function, avoid the inside oil pressure of the pump body too big and the damage that breaks down.

Description

Internal oil-discharging motor pump

Technical Field

The utility model relates to a motor pump technical field especially relates to inside oil extraction motor pump.

Background

The motor gear pump is applied to engineering machinery, agricultural and forestry machinery, medical machinery, plastic machinery, machinery manufacturing and other occasions requiring hydraulic transmission.

Motor gear pump among the prior art is as one of the important basic parts of hydraulic pressure industry, and motor pump has for a long time to be thought to realize inside oil extraction through changing self structure hardly, and too big and can not in time arrange oil pressure release when inside oil pressure in the motor gear pump working process, then easily lead to the inside trouble damage that takes place of motor gear pump.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a problem in order to solve above-mentioned background art, and the inside oil extraction motor pump that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

inside oil extraction motor pump, including the pump body, the baffle that fixedly connected with matches in the pump body, and the baffle separates the pump body is inside from a left side to the right side for hydraulic pressure chamber and oil absorption chamber in proper order, the fixed intercommunication of position department that the baffle is close to the bottom has an oil extraction section of thick bamboo, the ring channel has been seted up on the inner tube wall of oil extraction section of thick bamboo, be equipped with annular oil blanket in the ring channel, one side of annular oil blanket is laminated mutually with the one end of ring channel, the opposite side of annular oil blanket is connected with the oil extraction section of thick bamboo through elastic mechanism, fixed intercommunication has back oil pipe on the baffle, it sets up to be located oil extraction section of thick bamboo top to return oil pipe, and returns oil pipe and goes up fixed mounting and have the one-way oil valve of matching.

Preferably, the elastic mechanism comprises two guide rods which are symmetrically and fixedly connected to the edge of the end part of the oil discharging cylinder, the other end of each guide rod is fixedly connected with the inner wall of the oil suction cavity, a T-shaped rod is fixedly connected to the center of one side of the annular oil seal, sliding sleeves are fixedly connected to the two ends of the T-shaped rod and are connected with the guide rods in a sliding mode, a baffle is sleeved on the guide rods in a sliding mode, the baffle is connected with the oil suction cavity through an adjusting assembly, a spring is fixedly connected between each sliding sleeve and the corresponding baffle, and the spring sleeves are arranged on the guide rods.

Preferably, the adjusting assembly comprises an adjusting screw rod penetrating through the side wall of the oil suction cavity, the adjusting screw rod is rotatably connected with the side wall of the oil suction cavity through a sealing bearing, a U-shaped rod is fixedly connected to one side, close to the adjusting screw rod, of the baffle, the adjusting screw rod penetrates through the U-shaped rod, the adjusting screw rod is in threaded connection with the U-shaped rod, a retaining ring is fixedly sleeved on the guide rod, and the retaining ring is attached to one side, far away from the spring, of the baffle.

Preferably, the section of the annular groove is larger than that of the annular oil seal, and the end part of the annular groove, far away from the annular oil seal, is symmetrically and fixedly connected with a limiting column.

Preferably, one end of the adjusting screw rod, which is close to the baffle ring, is fixedly provided with a limiting cap.

Preferably, a rotating handle is fixedly installed at one end, far away from the baffle ring, of the adjusting screw rod.

Compared with the prior art, the utility model provides an inside oil extraction motor pump possesses following beneficial effect:

this inside oil extraction motor pump, through setting up the pump body, a partition plate, an oil extraction section of thick bamboo, the ring channel, the annular oil blanket, elastic mechanism, return oil pipe and one-way oil valve, when the hydraulic pressure intracavity portion oil pressure of the pump body is too big, the tension of elastic mechanism will be overcome, press the annular oil blanket along the ring channel motion, thereby automatically, open an oil extraction section of thick bamboo, the oil of hydraulic pressure intracavity is automatic to be discharged into and inhales the oil intracavity, realize inside oil extraction pressure release, avoid the inside oil pressure of the pump body too big and break down, the fluid height that highly surpasses back oil pipe when inhaling the oil intracavity, will be via returning oil pipe with the leading-in hydraulic pressure intracavity of oil, the one-way valve can avoid the oil of hydraulic pressure intracavity to flow into the oil absorption intracavity via returning oil pipe.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make the motor pump possess good inside oil extraction pressure release function, avoid the inside oil pressure of the pump body too big and the damage that breaks down.

Drawings

Fig. 1 is a schematic structural view of an internal oil-discharging motor pump according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the oil pump comprises a pump body 1, a partition plate 2, an oil discharge cylinder 3, an annular groove 4, an annular oil seal 5, an oil return pipe 6, a one-way oil valve 7, a guide rod 8, a 9T-shaped rod, a sliding sleeve 10, a baffle 11, a spring 12, an adjusting screw 13, a U-shaped rod 14, a baffle ring 15, a limiting column 16, a limiting cap 17 and a rotating handle 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, inside oil extraction motor pump, including the pump body 1, baffle 2 that fixedly connected with matches in the pump body 1, and baffle 2 separates pump body 1 inside from a left side to the right side for hydraulic pressure chamber and inhale the oil chamber in proper order, baffle 2 is close to the fixed intercommunication of position department of bottom has an oil extraction section of thick bamboo 3, annular groove 4 has been seted up on the inner tube wall of oil extraction section of thick bamboo 3, be equipped with annular oil blanket 5 in the annular groove 4, one side of annular oil blanket 5 is laminated with the one end of annular groove 4 mutually, the opposite side of annular oil blanket 5 is connected with oil extraction section of thick bamboo 3 through elastic mechanism, the fixed intercommunication has oil return pipe 6 on the baffle 2, oil return pipe 6 is located the setting of oil extraction section of thick bamboo 3 top, and fixed mounting has the one-way oil valve 7 that matches on the oil return pipe 6.

The elastic mechanism comprises two guide rods 8 which are symmetrically and fixedly connected on the edge of the end part of the oil discharge cylinder 3, the other end of each guide rod 8 is fixedly connected with the inner wall of the oil suction cavity, a T-shaped rod 9 is fixedly connected at the center of one side of the annular oil seal 5, two ends of each T-shaped rod 9 are fixedly connected with a sliding sleeve 10, the sliding sleeves 10 are in sliding connection with the guide rods 8, baffle plates 11 are sleeved on the two guide rods 8 in a common sliding mode, the baffle plates 11 are connected with the oil suction cavity through adjusting components, springs 12 are fixedly connected between the sliding sleeves 10 and the baffle plates 11, the springs 12 are sleeved on the guide rods 8, when the oil pressure in the hydraulic cavity of the pump body 1 is overlarge, the annular oil seal 5 is pressed to move along the annular groove 4, the annular oil seal 5 is matched with the T-shaped rods 9 to drive the sliding sleeves 10 to slide along the guide rods 8 and compress the springs 12, so that the oil discharge cylinder 3 is automatically opened, and the oil in the hydraulic cavity is automatically discharged into the oil suction cavity, realize inside oil extraction pressure release, avoid the pump body 1 inside oil pressure too big and break down, the fluid height that highly surpasses the mouth of pipe height of returning oil pipe 6 when inhaling the oil intracavity, will be via returning oil pipe 6 with the leading-in hydraulic pressure intracavity of oil, oil that check valve 7 can avoid the hydraulic pressure intracavity is via returning oil pipe 6 inflow oil absorption intracavity.

The adjusting component comprises an adjusting screw 13 penetrating through the side wall of the oil suction cavity, the adjusting screw 13 is rotatably connected with the side wall of the oil suction cavity through a sealing bearing, a U-shaped rod 14 is fixedly connected to one side, close to the adjusting screw 13, of the baffle plate 11, the adjusting screw 13 penetrates through the U-shaped rod 14 and is arranged, the adjusting screw 13 is in threaded connection with the U-shaped rod 14, a baffle ring 15 is fixedly sleeved on the guide rod 8, the baffle ring 15 is attached to one side, far away from the spring 12, of the baffle plate 11, the U-shaped rod 14 connected with the threads can be driven to move by rotating the adjusting screw 13, the U-shaped rod 14 drives the baffle plate 11 to slide along the guide rod 8, the elasticity can be changed, the compression amount of the spring 12 is reduced, the tension of the elastic mechanism can be adjusted and controlled as required, and the elastic mechanism can be adapted to different oil pressures.

The cross-section of ring channel 4 is greater than the cross-section of annular oil blanket 5, and the tip symmetry fixedly connected with spacing post 16 that ring channel 4 kept away from annular oil blanket 5 avoids ring channel 5 to laminate with the other end of ring channel 4 and lead to oil drain cylinder 3 to close in the motion process.

And a limiting cap 17 is fixedly arranged at one end of the adjusting screw rod 13 close to the baffle ring 15, so that the U-shaped rod 14 is prevented from being separated from the adjusting screw rod 13.

And a rotating handle 18 is fixedly arranged at one end of the adjusting screw 13 far away from the baffle ring 15, so that the rotation of the adjusting screw 13 is conveniently controlled.

In the utility model, when the oil pressure in the hydraulic cavity of the pump body 1 is too large, the annular oil seal 5 is pressed to move along the annular groove 4, the annular oil seal 5 cooperates with the T-shaped rod 9 to drive the sliding sleeve 10 to slide along the guide rod 8 and compress the spring 12, thereby automatically opening the oil discharge cylinder 3, automatically discharging the oil in the hydraulic cavity into the oil absorption cavity, realizing internal oil discharge and pressure relief, avoiding the fault caused by the too large oil pressure in the pump body 1, when the height of the oil liquid in the oil absorption cavity exceeds the height of the pipe orifice of the oil return pipe 6, guiding the oil into the hydraulic cavity through the oil return pipe 6, and the check valve 7 can prevent the oil in the hydraulic cavity from flowing into the oil absorption cavity through the oil return pipe 6; the U-shaped rod 14 connected with the threads can be driven to move by rotating the adjusting screw rod 13, the U-shaped rod 14 drives the baffle plate 11 to slide along the guide rod 8, and the compression amount of the elastic plate 12 can be changed, so that the tension of the elastic mechanism can be adjusted and controlled as required, and the elastic mechanism can be conveniently adapted to different oil pressures.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The internal oil discharge motor pump comprises a pump body (1) and is characterized in that a matched partition plate (2) is fixedly connected in the pump body (1), and the clapboard (2) divides the interior of the pump body (1) into a hydraulic cavity and an oil suction cavity from left to right, an oil discharge cylinder (3) is fixedly communicated with the position of the clapboard (2) close to the bottom end, an annular groove (4) is arranged on the inner cylinder wall of the oil discharge cylinder (3), an annular oil seal (5) is arranged in the annular groove (4), one side of the annular oil seal (5) is attached to one end of the annular groove (4), the other side of the annular oil seal (5) is connected with the oil discharge cylinder (3) through an elastic mechanism, an oil return pipe (6) is fixedly communicated with the clapboard (2), the oil return pipe (6) is arranged above the oil discharge cylinder (3), and a matched one-way oil valve (7) is fixedly arranged on the oil return pipe (6).

2. The internal oil-discharging motor pump as claimed in claim 1, wherein the elastic mechanism comprises two guide rods (8) symmetrically and fixedly connected to the edge of the end of the oil-discharging cylinder (3), the other end of each guide rod (8) is fixedly connected to the inner wall of the oil-sucking cavity, a T-shaped rod (9) is fixedly connected to the center of one side of the annular oil seal (5), sliding sleeves (10) are fixedly connected to both ends of each T-shaped rod (9), each sliding sleeve (10) is slidably connected to the corresponding guide rod (8), a baffle (11) is sleeved on each guide rod (8) in a sliding mode, each baffle (11) is connected to the corresponding oil-sucking cavity through an adjusting assembly, a spring (12) is fixedly connected between each sliding sleeve (10) and each baffle (11), and each spring (12) is sleeved on each guide rod (8).

3. The internal oil-discharging motor pump as claimed in claim 2, wherein the adjusting assembly comprises an adjusting screw (13) penetrating through the side wall of the oil-sucking cavity, the adjusting screw (13) is rotatably connected with the side wall of the oil-sucking cavity through a sealed bearing, a U-shaped rod (14) is fixedly connected to one side of the baffle (11) close to the adjusting screw (13), the adjusting screw (13) penetrates through the U-shaped rod (14), the adjusting screw (13) is in threaded connection with the U-shaped rod (14), a retaining ring (15) is fixedly sleeved on the guide rod (8), and the retaining ring (15) is attached to one side of the baffle (11) far away from the spring (12).

4. An internal oil-drainage motor pump as claimed in claim 1, characterized in that the section of the annular groove (4) is larger than that of the annular oil seal (5), and the end of the annular groove (4) far away from the annular oil seal (5) is symmetrically and fixedly connected with a limiting column (16).

5. An internally-vented motor pump as claimed in claim 3, wherein a limit cap (17) is fixedly mounted to the end of the adjusting screw (13) near the retainer ring (15).

6. An internally oil-draining motor pump according to claim 3, characterized in that the adjusting screw (13) is fixedly mounted with a stem (18) at its end remote from the ring (15).