CN210178569U - Linear conjugate internal gear bipolar high-pressure pump - Google Patents
Linear conjugate internal gear bipolar high-pressure pump Download PDFInfo
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- CN210178569U CN210178569U CN201920781785.9U CN201920781785U CN210178569U CN 210178569 U CN210178569 U CN 210178569U CN 201920781785 U CN201920781785 U CN 201920781785U CN 210178569 U CN210178569 U CN 210178569U
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Abstract
A linear conjugate internal gear double-pole high-pressure pump is characterized in that an oil inlet pump body is connected with a middle pump body and an oil outlet pump body through bolts, the oil outlet pump body is connected with an oil distribution disc, the upper part of the oil inlet pump body is provided with a medium inlet hole, the middle part of the oil inlet pump body is provided with a shaft hole transversely penetrating through the pump body, a transmission shaft is inserted into the shaft hole, a front cover and an oil seal are arranged at the insertion part of the transmission shaft, the transmission shaft penetrates through the shaft hole and is arranged in a through hole transversely penetrating through the pump body in the middle pump body and the oil outlet pump body, a shaft body of the transmission shaft is sleeved with a gear, the gear is further meshed with an inner gear ring, the transmission shaft drives, and the gear on the other side is inserted into the inner gear ring to be meshed with the inner gear ring to forcibly extrude the oil to form high-pressure oil, and the middle section and the tail end of the transmission shaft are respectively sleeved with a rotating bearing so that the transmission shaft rotates in the pump body. The utility model is suitable for a medium and large-scale precision processing machinery equipment who has the requirement to machining precision, speed.
Description
Technical Field
The utility model relates to a carry fluid or make the mechanical transmission hydraulic system field of fluid pressure boost, especially relate to a straight line conjugate internal gear double-pole high-pressure pump.
Background
At present, various pumps are often used in the fields of metal processing equipment (such as a plate shearing machine, a bending machine and the like), water conservancy, cement engineering, metallurgical machinery, injection molding machinery, ship equipment, engineering vehicles, rubber strand machinery, plate pressing brick pressing machinery, liquid conveying, aerospace and the like to convey or pressurize fluid, and the pumps transmit mechanical energy or other external energy of a prime mover to the liquid, so that the energy of the liquid is increased. Pumps can be generally classified by their operating principle into three types, positive displacement pumps, dynamic pumps and other types of pumps. In addition to classification by theory of operation, classification and naming may be by other methods. For example, the driving method may be classified into an electric pump, a turbine pump, and the like; can be divided into a single-stage pump and a multi-stage pump according to the structure; can be divided into a boiler feed pump, a metering pump and the like according to the application; the liquid can be divided into a water pump, an oil pump, a slurry pump and the like according to the property of the transported liquid. According to the structure with or without shaft, the linear pump and the traditional pump can be divided.
However, various types of pumps have created problems when used specifically in the above-mentioned fields, specifically as follows:
1. the noise problem-because the profile of tooth meshing type of the pump body is various, the meshing volume is different, when the gear pump is worked, the overlap coefficient of gear meshing must be greater than 1, namely always have two pairs of gears to mesh simultaneously, result in some fluid to be enclosed and stranded in the closed chamber that two pairs of gears formed, and this closed volume reduces gradually along with the gear rotation earlier, and increase gradually afterwards, closed volume reduces and can make stranded fluid be crowded and produce the high pressure, and flow out from the gap, lead to fluid to generate heat, parts such as bearing also receive additional unbalanced load effect. The increase of the closed volume can cause local vacuum, so that oil generates cavitation, noise, vibration and cavitation, and the oil trapping phenomenon causes the noise problem;
2-service life problem, because of the different structure of the pump body, the lubrication of the sliding surface is insufficient, and the different materials and processing technique adopted during the manufacturing process make the whole life unstable, and need to be replaced frequently, which causes the production cost to be increased and the efficiency to be reduced;
3-vibration (pulsation) phenomenon-due to the two problems, the pump body generates larger vibration (pulsation) when in use, various machining equipment with precision requirements on products are directly influenced, the reject ratio of the products is increased, and the production efficiency is reduced due to the reduction of the speed of the pump body;
the output pressure of the 4-pump body is insufficient, and the requirements of medium and large-sized processing machinery cannot be met.
In conclusion, various pump bodies in the prior art have many problems, so that the requirements of low noise, long service life, low vibration and pressure required by machining are difficult to meet.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a straight line conjugate inside gear double high-pressure pump, this straight line conjugate inside gear double high-pressure pump have simple structure, the noise is low, longe-lived, pollution sensitivity advantage such as little as having the power hydraulic element of international advanced standard, and little, the medium-sized pump body relatively, its output pressure is bigger.
The specific structure of the linear conjugate internal gear double-pole high-pressure pump of the utility model is as follows,
the utility model provides a straight line conjugate internal gear double high-pressure pump, includes the oil feed pump body and arranges the oil pump body, its characterized in that:
an intermediate pump body is arranged between the oil inlet pump body and the oil discharge pump body, the 3 pump bodies are connected together through a connecting bolt, the other end of the oil discharge pump body is connected with an oil distribution disc, an oil discharge port is formed in the other end of the oil discharge pump body, and the oil discharge port is communicated with an oil inlet of the oil distribution disc;
the oil inlet pump body is provided with a vertical medium inlet hole at the upper part of the pump body, the middle part of the pump body is provided with a shaft hole transversely penetrating through the pump body, and a transmission shaft is inserted into the shaft hole from one end of the oil inlet pump body and penetrates through the shaft hole to be arranged in the oil discharge pump body and the middle pump body;
a front cover and an oil seal are sequentially arranged at the position of the shaft hole at one end of the transmission shaft inserted into the oil inlet pump body, and one end of the oil inlet pump body is sealed by matching with a fixing bolt and a positioning bearing;
the middle of the oil discharge pump body is provided with an oil discharge pump body through hole which transversely penetrates through the pump body, the middle of the middle pump body is also provided with a middle pump body through hole, the positions of the oil discharge pump body through hole and the middle pump body through hole correspond to the sizes of the shaft holes, a middle section shaft body of the transmission shaft is arranged in the middle pump body through hole, a flat key for connection and a gear are sequentially sleeved at the middle section shaft body, the gear is further meshed with an inner gear ring, a tail section shaft body of the transmission shaft is arranged in the oil discharge pump body through hole, a torque transmission key and a transmission gear are sequentially sleeved on the shaft body, the transmission shaft drives the gear to rotate, the gear drives the inner gear ring to rotate in the same direction when rotating, the inner diameter of the inner gear ring is larger than the diameter of the gear, the gear on one side is separated from the inner gear ring to form vacuum to absorb, high-pressure oil is formed, in addition, a rotary bearing is sleeved at the position of the middle shaft body of the transmission shaft, which is close to the oil discharge pump body, and the tail section of the transmission shaft, which is positioned in the through hole of the oil discharge pump body, so that the transmission shaft can rotate in the middle of the pump body and the inside of the oil discharge pump body while taking the positioning function into consideration.
According to the utility model discloses a straight line conjugate internal gear double high pressure pump, a serial communication port, the tooth profile of gear be the straight line, and the tooth profile of ring gear rather than the assorted is the conjugate profile of tooth engaged with the straight line profile of tooth of gear mutually.
According to the utility model discloses a straight line conjugation internal gear double high-pressure pump, a serial communication port, the junction of the inlet pump body and the middle pump body, the junction of the middle pump body and the oil extraction pump body and the junction of the oil extraction pump body and joining in marriage the food tray all be provided with O type circle, it is sealed with the junction.
According to the utility model discloses a straight line conjugate inside engaged gear double-pole high-pressure pump, a serial communication port, the medium manhole of the oil feed pump body setting from its upper portion let in oil, this oil forms high-pressure oil through the oil feed pump body, the middle pump body and the oil extraction pump body, flows from the medium discharge hole on the upper portion of joining in marriage the food tray at last, delivers to the pump body outside.
Compared with a low-pressure pump and a medium-pressure pump, the oil pump has the advantages that the intermediate pump body is added, the bipolar design of the intermediate pump and the oil discharge pump is formed, the whole transmission distance is increased, and meanwhile, the pressure output by the pump body is further improved, so that the oil pump can adapt to medium-sized and large-sized processing mechanical equipment.
According to the utility model discloses a straight line conjugate internal gear double high pressure pump, a serial communication port, the tooth profile of gear be the straight line, and the tooth profile of ring gear rather than the assorted is the conjugate profile of tooth engaged with the straight line profile of tooth of gear mutually.
According to the utility model discloses a straight line conjugation internal gear double high pressure pump, a serial communication port, the junction of the oil feed pump body and the oil drain pump body and the junction of joining in marriage the food tray all be provided with O type circle, sealed the junction.
The O-ring prevents high pressure oil leakage at the connection.
According to the utility model discloses a straight line conjugate inside engaged gear double-pole high-pressure pump, a serial communication port, the medium manhole of the oil inlet pump body setting from its upper portion let in oil, this oil forms high-pressure oil through the oil inlet pump body, oil extraction pump body, flows from the medium discharge orifice on the upper portion of joining in marriage the food tray at last, delivers to the pump body outside.
Use the utility model discloses a straight line conjugate internal gear double high-pressure pump has obtained following beneficial effect:
1. the utility model discloses a straight line conjugation internal gear double high pressure pump, it has ultralow noise performance, has designed and has adopted unique straight line conjugation's internal gear profile of tooth, makes the meshing volume become very little, has avoided the influence of stranded oil, has greatly reduced the noise and the pressure pulsation of pump, even can keep lower noise when pressure improves;
2. the utility model discloses a straight line conjugate internal gear double high pressure pump, its long service life, unique structure adds and carries out the force lubrication to the glide plane, adds adopts special material and processing technology simultaneously to make the life-span of pump longer;
3. the utility model discloses a straight line conjugation internal gear double high-pressure pump, each spare part closely combines, and the high-efficient comprehensive lubricated effect of cooperation makes it obtain extremely low vibrations (pulse) and moves the effect, and output pressure is big, so it is applicable to various medium and large-scale precision processing machinery equipment that have the requirement to machining precision, speed.
Drawings
Fig. 1 is a schematic structural view of a linear conjugate internal gear bipolar high-pressure pump according to the present invention;
fig. 2 is a top view of the linear conjugate internal gear double high pressure pump of the present invention.
In the figure: 1-an oil inlet pump body, 2-an oil outlet pump body, 3-an intermediate pump body, 4-an oil distribution disc, 5-a transmission shaft, 6-a front cover, 7-an oil seal, 8-a fixing bolt, 9-a positioning bearing, 10-a flat key for connection, 11-a gear, 12-an inner gear ring, 13-a torque transmission key, 14-a transmission gear, 15-a rotating bearing, 16-an O-shaped ring, 1 a-a medium inlet hole, 1 b-an axle hole, 2 a-an oil outlet pump body through hole, 3 a-an intermediate pump body through hole and 4 a-a medium outlet hole.
Detailed Description
The following describes a linear conjugate internal gear double high pressure pump according to the present invention with reference to the accompanying drawings and embodiments.
Examples
As shown in fig. 1 and 2, a linear conjugate internal gear double-pole high-pressure pump comprises an oil inlet pump body 1 and an oil outlet pump body 2, wherein an intermediate pump body 3 is arranged between the oil inlet pump body and the oil outlet pump body, the 3 pump bodies are connected together through a connecting bolt, the other end of the oil outlet pump body is connected with an oil distribution disc 4, an oil outlet is formed in the other end of the oil outlet pump body, and the oil outlet is communicated with an oil inlet of the oil distribution disc;
the oil inlet pump body 1 is provided with a vertical medium inlet hole 1a at the upper part of the pump body, the middle part of the pump body is provided with a shaft hole 1b transversely penetrating through the pump body, and a transmission shaft 5 is inserted into the shaft hole from one end of the oil inlet pump body and is arranged in the oil outlet pump body 2 and the middle pump body 3 through the shaft hole;
a front cover 6 and an oil seal 7 are sequentially arranged at the position of the shaft hole 1b at one end of the transmission shaft 5 inserted into the oil inlet pump body, and one end of the oil inlet pump body is sealed by matching with a fixing bolt 8 and a positioning bearing 9;
the middle of the oil discharge pump body 2 is provided with an oil discharge pump body through hole 2a which transversely penetrates through the pump body, the middle of the middle pump body 3 is also provided with a middle pump body through hole 3a, the positions of the oil discharge pump body through hole, the middle pump body through hole and the shaft hole 1b correspond to the size, a middle section shaft body of the transmission shaft 5 is arranged in the middle pump body through hole, the middle section shaft body is sequentially sleeved with a flat key 10 and a gear 11 for connection, the gear is meshed with an inner gear ring 12, a tail section shaft body of the transmission shaft is arranged in the oil discharge pump body through hole, and the shaft body is sequentially sleeved with a torque transmission key 13 and a transmission gear 14.
When the oil sucking device is concretely implemented, the transmission shaft drives the gear to rotate, the gear drives the inner gear ring to rotate in the same direction when rotating, the inner diameter of the inner gear ring is larger than the diameter of the gear, the gear on one side is separated from the inner gear ring to form vacuum for oil sucking, the gear on the other side is inserted into the inner gear ring to be meshed, oil is forcibly pressed out, and high-pressure oil is formed.
In addition, the position of the middle section shaft body of the transmission shaft close to the oil discharge pump body and the tail section of the transmission shaft in the through hole of the oil discharge pump body are respectively sleeved with a rotating bearing 15, so that the transmission shaft can rotate in the middle of the pump body and the oil discharge pump body while the positioning function is considered.
The tooth form of the gear 11 is a straight line, and the tooth form of the inner gear ring 12 matched with the tooth form is a conjugate tooth form meshed with the straight tooth form of the gear.
O-shaped rings 16 are arranged at the joint of the oil inlet pump body 1 and the middle pump body 3, the joint of the middle pump body and the oil discharge pump body 2 and the joint of the oil discharge pump body and the oil distribution disc 4, and the joints are sealed.
The oil inlet pump body 1 is introduced with oil from a medium inlet hole 1a arranged at the upper part thereof, the oil forms high-pressure oil through the oil inlet pump body, the middle pump body 3 and the oil discharge pump body 2, and finally flows out from a medium outlet hole 4a at the upper part of the oil distribution disc 4 and is sent to the outside of the pump body.
When the concrete implementation, the utility model discloses a rated output pressure of straight line conjugate internal gear double high pressure pump is 12.5Mpa, and highest output pressure is 16Mpa, and the highest rotational speed is 3000r/min, and according to its structure variation in size, and the nominal discharge capacity is 10 ~ 160ml/r, can satisfy medium and large-scale processing machinery's demand completely.
The utility model discloses a straight line conjugation internal gear double high pressure pump, it has ultralow noise performance, has designed and has adopted unique straight line conjugation's internal gear profile of tooth, makes the meshing volume become very little, has avoided the influence of stranded oil, has greatly reduced the noise and the pressure pulsation of pump, even can keep lower noise when pressure improves; the utility model has long service life, the unique structure, forced lubrication on the sliding surface and the adoption of special materials and treatment process, thereby prolonging the service life of the pump; the utility model discloses the high-efficient comprehensive lubricated effect of cooperation makes it obtain extremely low vibrations (pulse) and moves the effect, so it is applicable to various medium and large-scale precision processing machinery equipment that have the requirement to machining precision, speed.
Claims (4)
1. The utility model provides a straight line conjugate internal gear double high-pressure pump, includes the oil feed pump body (1) and the oil extraction pump body (2), its characterized in that:
an intermediate pump body (3) is arranged between the oil inlet pump body (1) and the oil discharge pump body (2), the 3 pump bodies are connected together through a connecting bolt, the other end of the oil discharge pump body is connected with an oil distribution disc (4), wherein an oil discharge port is formed in the other end of the oil discharge pump body, and the oil discharge port is communicated with an oil inlet of the oil distribution disc;
the oil inlet pump body (1) is provided with a vertical medium inlet hole (1a) at the upper part of the pump body, the middle part of the pump body is provided with a shaft hole (1b) transversely penetrating through the pump body, and a transmission shaft (5) is inserted into the shaft hole from one end of the oil inlet pump body and penetrates through the shaft hole to be arranged in the oil outlet pump body (2) and the middle pump body (3);
a front cover (6) and an oil seal (7) are sequentially arranged at the position of the shaft hole (1b) at one end of the transmission shaft (5) inserted into the oil inlet pump body, and one end of the oil inlet pump body is sealed by matching with a fixing bolt (8) and a positioning bearing (9);
an oil discharge pump body through hole (2a) transversely penetrating through the pump body is formed in the middle of the oil discharge pump body (2), a middle pump body through hole (3a) is also formed in the middle of the middle pump body (3), the positions of the oil discharge pump body through hole, the middle pump body through hole and the shaft hole (1b) correspond to the sizes, a middle section shaft body of the transmission shaft (5) is arranged in the middle pump body through hole, a flat key (10) and a gear (11) for connection are sequentially sleeved at the middle section shaft body, the gear is meshed with an inner gear ring (12), a tail section shaft body of the transmission shaft is arranged in the oil discharge pump body through hole, a torque transmission key (13) and a transmission gear (14) are sequentially sleeved on the shaft body, the transmission shaft drives the gear to rotate, the gear drives the inner gear ring gear to rotate in the same direction when rotating, the inner diameter of the inner gear ring is larger than the diameter of the gear, the gear, and the gear on the other side is inserted into the inner gear ring to be meshed with the inner gear ring, so that oil is forced out to form high-pressure oil, in addition, the position of the middle section shaft body of the transmission shaft, which is close to the oil discharge pump body, and the tail section of the transmission shaft, which is positioned in the through hole of the oil discharge pump body, are respectively sleeved with a rotating bearing (15), so that the transmission shaft can rotate in the middle pump body and the oil discharge pump body while taking the positioning function into consideration.
2. A linear conjugated ring gear double high pressure pump according to claim 1, wherein the tooth profile of the gear (11) is a straight line and the tooth profile of the ring gear (12) matching therewith is a conjugate tooth profile meshing with the straight tooth profile of the gear.
3. The linear conjugate internal gear double high pressure pump according to claim 1, wherein the joint of the oil inlet pump body (1) and the intermediate pump body (3), the joint of the intermediate pump body and the oil discharge pump body (2), and the joint of the oil discharge pump body and the oil distribution disc (4) are provided with O-rings (16) for sealing the joints.
4. The linear conjugate internal gear double high pressure pump according to claim 1, wherein the oil feed pump body (1) is fed with oil from a medium inlet hole (1a) provided in an upper portion thereof, the oil passes through the oil feed pump body, the intermediate pump body (3) and the oil discharge pump body (2) to form high pressure oil, and finally flows out from a medium outlet hole (4a) provided in an upper portion of the oil distribution plate (4) to be sent to the outside of the pump body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920781785.9U CN210178569U (en) | 2019-05-28 | 2019-05-28 | Linear conjugate internal gear bipolar high-pressure pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920781785.9U CN210178569U (en) | 2019-05-28 | 2019-05-28 | Linear conjugate internal gear bipolar high-pressure pump |
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| CN210178569U true CN210178569U (en) | 2020-03-24 |
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| CN201920781785.9U Active CN210178569U (en) | 2019-05-28 | 2019-05-28 | Linear conjugate internal gear bipolar high-pressure pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187719A (en) * | 2021-04-28 | 2021-07-30 | 上海朋泰机械科技有限公司 | Gear ring, pump shaft, machining method of pump shaft and internal gear pump |
-
2019
- 2019-05-28 CN CN201920781785.9U patent/CN210178569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187719A (en) * | 2021-04-28 | 2021-07-30 | 上海朋泰机械科技有限公司 | Gear ring, pump shaft, machining method of pump shaft and internal gear pump |
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