CN203640901U - Bi-turbine driving device for pneumatic motor - Google Patents
Bi-turbine driving device for pneumatic motor Download PDFInfo
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- CN203640901U CN203640901U CN201320849033.4U CN201320849033U CN203640901U CN 203640901 U CN203640901 U CN 203640901U CN 201320849033 U CN201320849033 U CN 201320849033U CN 203640901 U CN203640901 U CN 203640901U
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- turbine
- end cap
- starting motor
- upper saw
- saw pulley
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Abstract
The utility model discloses a bi-turbine driving device for a pneumatic motor. The bi-turbine driving device comprises a housing with an air inlet pipe connecting port and an air exhaust opening, and a first-stage turbine, a directive wheel, a second-stage turbine, an end cap and a main shaft arranged in the housing, wherein the end cap, the first-stage turbine, the directive wheel and the second-stage turbine are sequentially connected on the main shaft, the outer side of the end cap is connected with the housing through a sealing ring, the inner side of the end cap is provided with an air intake and a jet orifice communicated with the air intake which is connected with the air inlet pipe connecting port, first V-shaped grooves are arranged on the periphery of the first-stage turbine along the circumferential direction, inverted V-shaped commutation grooves are arranged on the periphery of the directive wheel along the circumferential direction, the directive wheel is fixedly connected in the housing, and second V-shaped grooves are arranged on the periphery of the second-stage turbine along the circumferential direction. The bi-turbine driving device is large in output power, low in air consumption, high in efficiency, large in torque, and low in pressure drop and starting pressure.
Description
Technical field
The utility model relates to air starting field of motors, particularly the two turbine-driven sets of a kind of air starting motor.
Background technique
Present stage, widely used air starting motor was mainly divided into two kinds of blade type and turbo types by structural type.Blade type air starting motor is to promote blade rotary by pressurized air to drive starting motor gear and engine flywheel to rotate.Blade type air starting motor is mainly used in pneumatic tool, high-speed rotating machine and mining machinery etc., it have explosion-proof, higher starting torque, overload protection, temperature rise less, can be fully loaded with for a long time the advantages such as work.But compared with turbo type air starting motor, the in the situation that of identical load ability, blade type air starting motor is heavier, air consumption is large, efficiency is low.And blade type air starting motor noise is large, need gas circuit lubricated.Turbo type air starting motor is to utilize compressed air-driven turbine to rotate to drive air starting motor gear and engine flywheel to rotate.Turbo type air starting motor is mainly used in the equipment such as boats and ships, mine, oil gas field, steam turbine.Turbo type air starting motor is without lubricated gas circuit, and light weight, has lower working pressure and higher power.
The turbo type air starting motor of current domestic use is generally single turbine driving mode, although comparing blade type air starting motor, single turbine formula air starting motor there is advantage, but traditional single turbine formula air starting motor still has, output power is little, air consumption is large, efficiency is low, moment of torsion is little, pressure drop is high, breakout pressure is large, the shortcomings such as turbo lag.
Model utility content
For the technical problem existing in prior art, the purpose of this utility model is: provide a kind of light weight, without lubricated gas circuit, output power is large, air consumption is low, efficiency is high, moment of torsion is large, pressure drop is low and breakout pressure is little two turbine-driven sets of air starting motor.
The purpose of this utility model is achieved through the following technical solutions: the two turbine-driven sets of a kind of air starting motor, comprise be provided with suction tude connection mouth and relief opening housing, be located at one-level turbine, upper saw pulley, two-stage turbine, end cap and main shaft in housing, described end cap, one-level turbine, upper saw pulley and two-stage turbine are connected in turn on main shaft, end cap and upper saw pulley are connected on main shaft by bearing, and one-level turbine and two-stage turbine are connected on main shaft by key; End cap outside is connected with housing by seal ring, the jetburner that end cap inner side offers suction port and is conducted with suction port, and described suction port is connected with suction tude connection mouth, and jetburner is opened on end cap circumferential surface; On described one-level turbine circumferential surface, offer and be first groove of " V " type and along the circumferential direction arrange; On upper saw pulley circumferential surface, offer and be down the reversing groove of " V " type and along the circumferential direction arrange, upper saw pulley is fixedly connected in housing; On described two-stage turbine circumferential surface, offer and be second groove of " V " type and along the circumferential direction arrange.
Further, described jetburner and the suction port relative end cap radial direction two ends that are arranged on respectively.
Further, between adjacent two first grooves, form boss, on boss, offer counterbore.
Further, described one-level turbine and two-stage turbine coordinate with body clearance.
Further, on the end face of described one-level turbine and two-stage turbine, axially offer multiple equally distributed through holes.
Further, described end cap and one-level turbine spacing are 1-2.5mm, and one-level turbine and upper saw pulley spacing are 1-2.5mm, and upper saw pulley and two-stage turbine spacing are 1-2.5mm.
Further, described the first ditch groove deep is 3-5mm, biggest place groove width 9.5-11.5mm, the minimum groove width 3-4.5mm of place; Described the second ditch groove deep is 3.5-5mm, biggest place groove width 7-8.5mm, the minimum groove width 4.5-6mm of place; Reversing groove groove depth is 3.5-5mm, biggest place groove width 11-13mm, the minimum groove width 6-7.5mm of place.
Further, on described upper saw pulley circumferential surface, there is the pressurization boss being fixedly connected with housing.
Further, described main shaft and upper saw pulley joint are connected with clutch shaft bearing cover, the first rolling bearing and the first lip-type packing, and upper saw pulley is socketed in described clutch shaft bearing cover, the first rolling bearing and the first lip-type packing; Described main shaft and end cap joint are connected with the second axle sleeve, the second rolling bearing and the second lip-type packing, and end cap is socketed in described the second axle sleeve, the second rolling bearing and the second lip-type packing.
Further, the side that described the second rolling bearing exposes end cap is connected with a pressing plate, and pressing plate is fixedly connected on end cap.
Working principle of the present utility model: the utility model is provided with one-level turbine and two-stage turbine drive main spindle rotation simultaneously.In the time that the suction tude connection mouth on housing is connected with pressurized gas, pressurized gas enters jetburner by the suction port on end cap, thereby pressurized gas enters along jetburner in the first groove of one-level turbine and drives the acting of one-level turbine to make main shaft rotation, in the time that pressurized gas sprays from the first groove of one-level turbine, the injection direction of gas changes when entering the first groove, now, gas enters the reversing groove on upper saw pulley, can make the injection direction of pressurized gas change by reversing groove and make it identical with initial injection direction, thereby pressurized gas sprays in the second groove that enters two-stage turbine and drives two-stage turbine acting further to promote main shaft rotation from reversing groove, gas is discharged by the relief opening on housing after by the second groove.
The utility model has following advantage and effect with respect to prior art:
1, the utility model is provided with one-level turbine and two-stage turbine drive main spindle rotation simultaneously, reasonable in design, simple in structure, both retained conventional turbine formula air starting motor without lubricated gas circuit, the advantage of light weight, also have advantages of that output power is large, air consumption is low, efficiency is high, moment of torsion is large, pressure drop is low, breakout pressure is little simultaneously, there is wide market application and popularizing prospect.
2, on upper saw pulley circumferential surface of the present utility model, there is the pressurization boss that matches with housing and be fixedly connected with.Pressurization boss and housing closely cooperate, and reduce the scope of gas flow to increase air pressure.The boss that simultaneously pressurizes is also fixedly connected with by screw with housing.
3, between adjacent two first grooves of the present utility model, form boss, on boss, offer counterbore.To alleviate the weight of one-level turbine, can also control the degree of depth of each counterbore to regulate one-level turbine balance.
4, on one-level turbine of the present utility model and two-stage turbine, there is through hole and further alleviates the weight of one-level turbine and two-stage turbine.
5, main shaft of the present utility model respectively and between upper saw pulley and end cap, be provided with seal ring prevent gas leakage.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the structural representation of the utility model upper saw pulley.
Fig. 4 is the sectional view of embodiment's two end cap inner side parts.
Fig. 5 is the schematic diagram of the utility model end cap, one-level turbine, upper saw pulley and two-stage turbine spacing.
Fig. 6 is the enlarged view of D portion in Fig. 5.
Fig. 7 is the structural representation of the utility model one-level turbine.
Fig. 8 is the structural representation of the utility model two-stage turbine.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but mode of execution of the present utility model is not limited to this.
Embodiment one:
As Figure 1-3, the two turbine-driven sets of a kind of air starting motor, comprise be provided with suction tude connection mouth 11 and relief opening 12 housing 10, be located at one-level turbine 20, upper saw pulley 30, two-stage turbine 40, end cap 50, main shaft 60 and axle pad sheet 70 in housing 10, housing 10 is the tubulose axially connecting, described suction tude connection mouth 11 arranges with relief opening 12 front and back, described suction tude connection mouth 12 is arranged on the outer wall of housing 10, and relief opening 12 is arranged on the axial one end place of housing 10.
As shown in Figure 1-2, described end cap 50, one-level turbine 20, upper saw pulley 30 and two-stage turbine 40 are connected in turn on main shaft 60, and one-level turbine 20 and two-stage turbine 40 are connected on main shaft 60 by key.Housing 10 and end cap 50 Spielpassung, end cap 50 outsides are connected with housing 10 by seal ring 51, concrete, described seal ring 51 is " O " RunddichtringO, the outer peripheral surface in end cap 50 outsides is provided with groove, " O " RunddichtringO is housed on groove, and " O " RunddichtringO is sealedly connected between housing 10 and end cap 50.
As shown in Fig. 1,3 and 4, the jetburner 53 that end cap 50 inner sides offer suction port 52 and are conducted with suction port 52, described suction port 52 is connected with suction tude connection mouth 12, and jetburner 53 is offered along end cap 50 circumferencial directions; On described one-level turbine 20 outer peripheral surfaces, offer and be first groove 21 of " V " type and along the circumferential direction evenly arrange, between adjacent two first grooves 21, form boss 22, on boss 22, offer counterbore 23; On upper saw pulley 30 circumferential surfacies, offer and be down the reversing groove 31 of " V " type and along the circumferential direction evenly arrange, between adjacent two reversing grooves 31, form the projection 33 being connected with housing 10, upper saw pulley 30 is fixedly connected in housing 10, on upper saw pulley 30 circumferential surfacies, have the pressurization boss 32 matching with housing 10, the boss 32 that simultaneously pressurizes is also fixedly connected with by Cock screw (not illustrating in figure) with housing 10; On described two-stage turbine 40 external peripheral surfaces, offer and be second groove 41 of " V " type and along the circumferential direction evenly arrange.
As shown in Figure 2, described main shaft 60 is connected with clutch shaft bearing cover 61, the first rolling bearing 62 and the first lip-type packing 63 with upper saw pulley 30 joints, and upper saw pulley 30 is socketed in described clutch shaft bearing cover 61, the first rolling bearing 62 and the first lip-type packing 63; Described main shaft 60 is connected with the second axle sleeve 64, the second rolling bearing 65 and the second lip-type packing 66 with end cap 50 joints, end cap 50 is socketed in described the second axle sleeve 64, the second rolling bearing 65 and the second lip-type packing 66, the side that the second rolling bearing 65 exposes end cap 50 is connected with a pressing plate 68, pressing plate 68 is fixedly connected on end cap 50, in case sliding appears in the second rolling bearing 65.
As shown in Figure 2, between described one-level turbine 20 and two-stage turbine 40 and main shaft 60, be connected by flat key 67 respectively, on the end face of one-level turbine 20 and two-stage turbine 40, axially offer multiple equally distributed through holes 80, one-level turbine 20 and two-stage turbine 40 have identical external diameter size and external peripheral surface and housing 10 and have certain gap.
As illustrated in fig. 1 and 2, described main shaft 60 is connected by socket head screw 90 with axle pad sheet 70, and end cap 50 is connected by rolling bearing with main shaft 60 respectively with upper saw pulley 30.
As illustrated in Figures 5 and 6, described end cap 50 is 1-2.5mm with one-level turbine 20 spacing a, and one-level turbine 20 is 1-2.5mm with upper saw pulley 30 spacing b, and upper saw pulley 30 is 1-2.5mm with two-stage turbine 40 spacing c.Preferably, described end cap 50 is 1.1mm with one-level turbine 20 spacings, and one-level turbine 20 is 2mm with upper saw pulley 30 spacings, and upper saw pulley 30 is 1.2mm with two-stage turbine 40 spacings.
As Figure 7-8, described the first ditch groove deep is 3-5mm, biggest place groove width 9.5-11.5mm, the minimum groove width 3-4.5mm of place; Described the second ditch groove deep is 3.5-5mm, biggest place groove width 7-8.5mm, the minimum groove width 4.5-6mm of place; Reversing groove groove depth is 3.5-5mm, biggest place groove width 11-13mm, the minimum groove width 6-7.5mm of place.
Preferably, described the first ditch groove deep is 4.3mm, biggest place groove width 10.6mm, the minimum groove width 3.7mm of place; Described the second ditch groove deep is 4.25mm, biggest place groove width 7.6mm, the minimum groove width 5.5mm of place; Reversing groove groove depth is 4.17mm, biggest place groove width 12mm, the minimum groove width 6.9mm of place.
Working procedure of the present utility model and working principle: in the time that the suction tude connection mouth 11 on housing 10 is connected with pressurized gas, pressurized gas enters jetburner 53 by the suction port 52 on end cap 50, thereby the interior drive one-level of the first groove 21 turbine 20 actings that pressurized gas enters one-level turbine 20 along jetburner 53 are rotated main shaft 60, in the time that pressurized gas sprays from the first groove 21 of one-level turbine 20, the injection direction of gas changes when entering the first groove 21, now, gas enters the reversing groove 31 on upper saw pulley 30, can make the injection direction of pressurized gas change by reversing groove 31 and make it identical with initial injection direction, thereby pressurized gas sprays in the second groove 41 that enters two-stage turbine 40 and drives the further main shaft 60 that promotes of two-stage turbine 40 actings to rotate from reversing groove 31, gas is discharged by the relief opening 12 on housing 10 after by the second groove 41.
Embodiment two:
The present embodiment and embodiment's one difference are: as shown in Figure 4, described jetburner 53 and suction port 52 be the just right radially two ends of end cap 50 that are arranged on respectively; Described upper saw pulley 30 interference fit are in housing 10.
Above-described embodiment is preferably mode of execution of the utility model; but mode of execution of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (10)
1. the two turbine-driven sets of air starting motor, it is characterized in that: comprise be provided with suction tude connection mouth and relief opening housing, be located at one-level turbine, upper saw pulley, two-stage turbine, end cap and main shaft in housing, described end cap, one-level turbine, upper saw pulley and two-stage turbine are connected in turn on main shaft, end cap and upper saw pulley are connected on main shaft by bearing, and one-level turbine and two-stage turbine are connected on main shaft by key; End cap outside is connected with housing by seal ring, the jetburner that end cap inner side offers suction port and is conducted with suction port, and described suction port is connected with suction tude connection mouth, and jetburner is opened on end cap circumferential surface; On described one-level turbine circumferential surface, offer and be first groove of " V " type and along the circumferential direction arrange; On upper saw pulley circumferential surface, offer and be down the reversing groove of " V " type and along the circumferential direction arrange, upper saw pulley is fixedly connected in housing; On described two-stage turbine circumferential surface, offer and be second groove of " V " type and along the circumferential direction arrange.
2. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: described jetburner and suction port be the relative end cap radial direction two ends that are arranged on respectively.
3. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: between adjacent two first grooves, form boss, offer counterbore on boss.
4. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: described one-level turbine and two-stage turbine coordinate with body clearance.
5. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: on the end face of described one-level turbine and two-stage turbine, axially offer multiple equally distributed through holes.
6. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: described end cap and one-level turbine spacing are 1-2.5mm, and one-level turbine and upper saw pulley spacing are 1-2.5mm, and upper saw pulley and two-stage turbine spacing are 1-2.5mm.
7. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: described the first ditch groove deep is 3-5mm biggest place groove width 9.5-11.5mm, the minimum groove width 3-4.5mm of place; Described the second ditch groove deep is 3.5-5mm, biggest place groove width 7-8.5mm, the minimum groove width 4.5-6mm of place; Reversing groove groove depth is 3.5-5mm, biggest place groove width 11-13mm, the minimum groove width 6-7.5mm of place.
8. two turbine-driven sets of air starting motor according to claim 1, is characterized in that: on described upper saw pulley circumferential surface, have the pressurization boss being fixedly connected with housing.
9. two turbine-driven sets of air starting motor according to claim 1, it is characterized in that: described main shaft and upper saw pulley joint are connected with clutch shaft bearing cover, clutch shaft bearing and the first seal ring, upper saw pulley is socketed on described clutch shaft bearing cover, clutch shaft bearing and the first seal ring; Described main shaft and end cap joint are connected with the second axle sleeve, the second bearing and the second seal ring, and end cap is socketed on described the second axle sleeve, the second bearing and the second seal ring.
10. two turbine-driven sets of air starting motor according to claim 9, is characterized in that: the side that described the second bearing exposes end cap is connected with a pressing plate, and pressing plate is fixedly connected on end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849033.4U CN203640901U (en) | 2013-12-20 | 2013-12-20 | Bi-turbine driving device for pneumatic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849033.4U CN203640901U (en) | 2013-12-20 | 2013-12-20 | Bi-turbine driving device for pneumatic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640901U true CN203640901U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849033.4U Withdrawn - After Issue CN203640901U (en) | 2013-12-20 | 2013-12-20 | Bi-turbine driving device for pneumatic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696891A (en) * | 2013-12-20 | 2014-04-02 | 华南理工大学 | Air starting motor double-turbine driving device |
| CN106014519A (en) * | 2016-05-20 | 2016-10-12 | 中国长江动力集团有限公司 | Steam turbine and organic Rankine cycle fluid turbine dual-drive combined electricity generation or mechanical working equipment |
-
2013
- 2013-12-20 CN CN201320849033.4U patent/CN203640901U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696891A (en) * | 2013-12-20 | 2014-04-02 | 华南理工大学 | Air starting motor double-turbine driving device |
| CN103696891B (en) * | 2013-12-20 | 2016-05-11 | 华南理工大学 | The two turbine-driven sets of a kind of air starting motor |
| CN106014519A (en) * | 2016-05-20 | 2016-10-12 | 中国长江动力集团有限公司 | Steam turbine and organic Rankine cycle fluid turbine dual-drive combined electricity generation or mechanical working equipment |
| CN106014519B (en) * | 2016-05-20 | 2019-03-08 | 中国长江动力集团有限公司 | Steam turbine and Organic Rankine Cycle working medium turbine dual drive system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |