CN205117716U - High viscosity is lubricated circle -arc tooth wheel cylinder outward - Google Patents
High viscosity is lubricated circle -arc tooth wheel cylinder outward Download PDFInfo
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- CN205117716U CN205117716U CN201520880185.XU CN201520880185U CN205117716U CN 205117716 U CN205117716 U CN 205117716U CN 201520880185 U CN201520880185 U CN 201520880185U CN 205117716 U CN205117716 U CN 205117716U
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- ball bearing
- lubricates
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Abstract
The utility model provides a high viscosity is lubricated circle -arc tooth wheel cylinder outward for the high viscosity, the lubricity is relatively poor or the transport of unlubricated nature medium. It includes that the pump body, driving shaft, driven shaft, initiative circular tooth gear, passive circular tooth gear, thrust plate, end cover, power are sealed, skeleton oil blanket, ball bearing, bearing cover. The utility model discloses a ball bearing replaces slide bearing, has solved the easy friction of the long -time operation of slide bearing and has rocked to the damage, and caused the problem of gear and pump body inner wall looks mutual friction damage to the life of pump has been prolonged, change the ball bearing position, with its to between skeleton oil blanket and the bearing cover, make its medium with carrying keep apart completely, prevent the wearing and tearing that the medium produced to ball bearing to can carry the medium of the relatively poor or unlubricated nature of lubricity, this pump adopts spiral circular tooth gear, and its number of teeth is few, and tooth groove space is big, and the medium discharge capacity of conveying is big, therefore can carry the high viscosity medium.
Description
Technical field
The utility model relates to a kind of gear pump, specifically, relates to a kind of high viscosity and lubricates circular-arc gear pump outward.
Background technique
Gear pump structure is simple, low cost of manufacture, suction capacity are strong, oil resistant liquid pollution capacity is strong, is commonly used for power plant, particularly applies more extensive in low service system in hydraulic system.Currently available technology involute gear pump, its engagement process middle gear face relative sliding, tooth surface abrasion are large, running is uneven, thus occur the technical problems such as noise is large, working life is short, efficiency is low; Its sliding bearing of common gear pump is embedded between thrust plate internal diameter and axle, if the medium of conveying poor lubricity or unlubricated property, medium in suction chamber and discharge side can direct contact slide bearing, the generation that rubbed by sliding bearing is rocked to damage, cause the gear that be connected concentric on axle to rock wall friction in the same pump housing mutually to wear and tear, sliding bearing, gear, the pump housing is not only made to damage, gears meshing precision also can be made to reduce, therefore common gear pump adopts sliding bearing can cause pump housing shortening in working life, and not easily carries the medium of poor lubricity or unlubricated property; The common gear pump number of teeth is more, and the space between teeth groove is less, thus the discharge capacity of conveying is little, not easily transfer of highly viscous medium afterwards.
Summary of the invention
The purpose of this utility model is the deficiency in order to avoid prior art exists, overcome the medium of conventional tooth the wheel pump not easily poor or unlubricated property of transfer of highly viscous, lubricity, tooth surface abrasion is large, running is uneven, thus there is the technical problems such as noise is large, working life is short, efficiency is low, provide a kind of high viscosity and lubricate circular-arc gear pump outward.
The utility model solves the technological scheme that its technical problem adopts: contain the driving shaft (7) and driven axle (8) that are fixed on parallel to an axis in the pump housing (1), be connected with intermeshing active circular tooth gear (2) and passive circular tooth gear (11) between driving shaft (7) and driven axle (8), thrust plate (3) installed at its two ends successively, the dynamic seal (10) be arranged in end cap (4), outside framework oil seal (9), ball bearing (5) and bearing gland (6).
The utility model ball bearing (5) replaces sliding bearing, change ball bearing (5) position, moved to the position be embedded in before between thrust plate internal diameter and axle between outside framework oil seal (9) and bearing gland (6), wherein ball bearing (5) quantity is 4; Initiatively circular tooth gear (2) is a pair identical, intermeshing spiral arc gear of the number of teeth with passive circular tooth gear (11), and its tooth root is thick, and the number of teeth of active circular tooth gear (2) and passive circular tooth gear (11) reduced, tooth socket space increases; Wherein initiatively circular tooth gear (2) and passive circular tooth gear (11), thrust plate (3) are cemented carbide material, and dynamic seal (10) quantity is 4, and outside framework oil seal (9) quantity is 8.The utility model circular tooth gear instead of involute gear, due to the tooth top of gear and shell inner hole surface gap very little, gear face and thrust plate gap very little, thus suction chamber and discharge side are separated, when driven by motor driving shaft (7) rotates, thus drive driven axle (8) to rotate, the gear be rotating, the tooth that contact points side engages exits engagement gradually, space increases, form parital vacuum, the medium carried enters suction chamber under external atmosphere pressure effect, when the gear of contact points opposite side progresses into engagement, the medium squeeze of between cog out, outflow is forced from exhaust port.
The utility model has the following advantages.
1, the utility model adopts ball bearing (5) to substitute sliding bearing, the characteristic had due to itself, ball bearing is not easy wearing and tearing, therefore solves sliding bearing friction and rocks problem to damaging the gear that causes and pump housing inwall friction damage, thus extend the working life of pump.
2, ball bearing (5) position is changed, move between outside framework oil seal (9) and bearing gland (6) by the position being fixed on thrust plate internal diameter and between centers before, make the pump housing (1) in the process of fed sheet of a media, completely isolated by dynamic seal (10) and reinforced seal (9) and ball bearing (5), avoiding medium contact ball bearing (5) makes it rub to damage, thus can carry the medium of the poor or unlubricated property of lubricity.
3, the number of teeth of active circular tooth gear (2) and passive circular tooth gear (11) reduced, tooth socket space increases, and the medium discharge capacity therefore transmitted increases, the high viscosity medium that the good flow behavior of energy is poor.
4, circular arc tooth root is thick, can carry high pressure high pulling torque.
5, initiatively circular tooth gear (2) and passive circular tooth gear (11), thrust plate (3) all adopt cemented carbide material, in operation process, improve its wear resistance, extend working life.
6,4 dynamic seals (10) and 8 outside framework oil seals (9), sealing and anti-leakage effect is stronger, can well flow into ball bearing inside and produce friction to damaging by spacer medium, extend the working life of ball bearing and the maintenance period of pump, reduce cost of production.
7, the utility model circular tooth gear instead of involute gear, and Meshing Process of Spur Gear middle gear face does not have relative sliding, so the flank of tooth is without wearing and tearing, smooth running, has that noise is low, the life-span is long, efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model high viscosity lubricates circular-arc gear pump outward.
Fig. 2 is the partial cutaway axis side view that the utility model high viscosity lubricates circular-arc gear pump outward.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
See accompanying drawing 1, accompanying drawing 2, a kind of high viscosity lubricates circular-arc gear pump outward, contain the driving shaft (7) and driven axle (8) that are fixed on parallel to an axis in the pump housing (1), be connected with intermeshing active circular tooth gear (2) and passive circular tooth gear (11) between driving shaft (7) and driven axle (8), thrust plate (3) installed at its two ends successively, the dynamic seal (10) be arranged in end cap (4), outside framework oil seal (9), ball bearing (5) and bearing gland (6).
The utility model is the spiral circular gear pump that active circular tooth gear (2) drives passive circular tooth gear (11) to rotate, it instead of traditional involute gear pump, Meshing Process of Spur Gear middle gear face does not have relative sliding, so the flank of tooth is without wearing and tearing, smooth running, noise is low, the life-span is long, efficiency is high; The number of teeth of initiatively circular tooth gear (2) and passive circular tooth gear (11) reduced, tooth socket space increase, makes the rate-of flow of transmission increase, afterwards can high viscosity medium that well flow behavior is poor, and circular arc tooth root is thick, thus can realize high pressure high pulling torque.
The utility model adopts ball bearing (5) to replace sliding bearing, the characteristic had due to itself, so ball bearing is not easy wearing and tearing, therefore solves sliding bearing friction and rock problem to damaging the gear that causes and pump housing inwall friction damage, thus extend the working life of pump; Ball bearing (5) position is being changed, move between outside framework oil seal (9) and bearing gland (6) by the position of thrust plate internal diameter and between centers before, the pump housing (1) is made to suck and discharge in the process of medium, completely isolated by dynamic seal (10) and reinforced seal (9) and ball bearing (5), avoiding medium contact ball bearing (5) makes it rub to damage, can carry the medium of the poor or unlubricated property of lubricity afterwards.
Claims (9)
1. a high viscosity lubricates circular-arc gear pump outward, it is characterized in that: contain the driving shaft (7) and driven axle (8) that are fixed on parallel to an axis in the pump housing (1), be connected with intermeshing active circular tooth gear (2) and passive circular tooth gear (11) between driving shaft (7) and driven axle (8), thrust plate (3) installed at its two ends successively, the dynamic seal (10) be arranged in end cap (4), outside framework oil seal (9), ball bearing (5) and bearing gland (6).
2. the high viscosity according to claim 1 lubricates circular-arc gear pump outward, it is characterized in that: initiatively circular tooth gear (2) is a pair identical, intermeshing spiral arc gear of the number of teeth with passive circular tooth gear (11), its instead of before involute gear.
3. the high viscosity according to claim 2 lubricates circular-arc gear pump outward, it is characterized in that: the circular arc number of teeth of active circular tooth gear (2) and passive circular tooth gear (11) reduced, tooth socket space increases.
4. the high viscosity according to claim 1 lubricates circular-arc gear pump outward, it is characterized in that: ball bearing (5) coaxial support be assemblied in end cap (4) is arranged on driving shaft (7) and the driven axle (8) of parallel to an axis in the pump housing (1).
5. the high viscosity according to claim 4 lubricates circular-arc gear pump outward, it is characterized in that: ball bearing (5) quantity is 4, with the sliding bearing that the front pump of ball bearing (5) replacement is used.
6. the high viscosity according to claim 4 lubricates circular-arc gear pump outward, it is characterized in that: change ball bearing (5) position, moved to the position be embedded in before between thrust plate internal diameter and axle between outside framework oil seal (9) and bearing gland (6).
7. the high viscosity according to claim 1 lubricates circular-arc gear pump outward, it is characterized in that: initiatively circular tooth gear (2) and passive circular tooth gear (11), thrust plate (3) are cemented carbide material.
8. the high viscosity according to claim 1 lubricates circular-arc gear pump outward, it is characterized in that: dynamic seal (10) quantity is 4, and outside framework oil seal (9) quantity is 8.
9. the high viscosity according to claim 1 lubricates circular-arc gear pump outward, it is characterized in that: the import and export direction of pump is entered by level, horizontal output, the level of changing to enters, vertical output or vertical input, horizontal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880185.XU CN205117716U (en) | 2015-11-07 | 2015-11-07 | High viscosity is lubricated circle -arc tooth wheel cylinder outward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880185.XU CN205117716U (en) | 2015-11-07 | 2015-11-07 | High viscosity is lubricated circle -arc tooth wheel cylinder outward |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117716U true CN205117716U (en) | 2016-03-30 |
Family
ID=55573331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520880185.XU Active CN205117716U (en) | 2015-11-07 | 2015-11-07 | High viscosity is lubricated circle -arc tooth wheel cylinder outward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117716U (en) |
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2015
- 2015-11-07 CN CN201520880185.XU patent/CN205117716U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 062150 Economic Development Zone, Botou City, Cangzhou City, Hebei Province -50 meters west of the intersection of No. North Road and Ruilin Road Patentee after: Hebei Guangteng Machinery Equipment Co.,Ltd. Address before: 062150 Bo Zhen He Dong Nan Cun, Botou City, Cangzhou City, Hebei Province Patentee before: BOTOU CITY GUANG TENG MACHINERY MANUFACTURING Co.,Ltd. |