CN1828088A

CN1828088A - Planet differential actuator

Info

Publication number: CN1828088A
Application number: CN 200610046321
Authority: CN
Inventors: 冯文利; 刘国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-17
Filing date: 2006-04-17
Publication date: 2006-09-06
Anticipated expiration: 2026-04-17
Also published as: CN100366949C

Abstract

The invention relates to a planet differential starter, used in the oil field pump. It comprises an output axle, a belt wheel, a bank, and a planet element. It is characterized in that: the bank comprises a transmission device, a planet device, a clutch device and a control device. Said transmission device comprises a gear axial sleeve, a output axle, a bearing, a sliding support, a inner tooth ring, a transmission hub and guide bolt. Said control device comprises a control axle, a handle, a connecting block, a support post, a revolving ring and a brake claw. Said clutch device comprises a spring core axle, a spring base, a spring and a compressing ring. And the planet device comprises a planet wheel support, a planet wheel, a claw wheel, and a planet wheel axle. The invention uses differential start, therefore, the motor with small power can be used, and it can save electricity, cost and non-working power consumption, with easy maintenance and long service life.

Description

Planet differential actuator

Technical field

The invention belongs to the starter field that oil-field oil pumper and similar devices are used, particularly a kind of planet differential actuator.

Background technique

The starting drive ubiquity heavy duty of present pumping unit and similar machinery starts, the working method of underload operation, promptly adopt heavy-duty motor, the power supply mode of high-power transformer, and the actual power consumption of motor only is about 1/3rd of motor rated capacity when normally moving, this just makes transformer, power of electric motor factor very low, reactive loss increases, therefore grid supply quality also reduces, waste electric energy, cost of production height.Once adopted some solutions, as the fast pulley speed reducer that adds of The field, but owing to the pumping unit parameter changes, so application area is limited; Adopt frequency-adjustable speed-adjustable motor or multispeed electric machine, then involve great expense, motor is fragile, and the reactive loss problem does not solve; Also have a kind ofly slow down to start belt pulley with motor and start, its conical surface clutch is subjected to the restriction of area and the restriction of processing technology, and effect of field application is bad.

Application for a patent for invention 2003101013206, " motor pulley deceleration starting drive " proposes a kind of new approaches, adopts mechanisms such as planetary gears, belt pulley, and by analysis, there is following problems in this device:

1, built-in belt pulley is changed the belt inconvenience, the maintenance inconvenience.

2, adopt unlubricated dry-running, reliability is low, and working life is short.

3, the unsteady key control lever of Cai Yonging is too thin, can not guarantee the reliable operation (coefficient of reliability only is 1.03) of mechanism, because structure space is limited, can't change.

4, float key and lever is one point articulated, parallel lifting in the time of can not guaranteeing its work, and unsteady key often causes key to lose the function of transferring power owing to stressing conditions is bad tilting to rise when also beginning to contact on one point.

5, used 12 cover bearings in the whole device, complex structure, the requirement on machining accuracy height, manufacture difficulty is big, and reliability reduces.

Summary of the invention

The purpose of this invention is to provide a kind of structure and more simply, do not use the planet differential actuator key that floats, comparatively simple, the reliable performance of manufacturing.

Planet differential actuator of the present invention, comprise output shaft, be contained in the belt pulley on this output shaft, box assembly, planetary mechanism, it is characterized in that by the driving mechanism that is arranged in the described box assembly, the planetary mechanism and the clutch mechanism that are connected of driving mechanism therewith, the operation control mechanism that is connected of clutch mechanism is formed therewith

Described driving mechanism comprises the gear bush in the box assembly of being located at that is used for being connected with motor output shaft, be contained in the output shaft of this gear bush front end, be contained in the bearing on the output shaft, the sliding bearing seat on bearing right side, the planetary gears that is meshed of gear bush therewith, the ring gear that is connected with this gear bush by axle bush, be located at the driving center between ring gear and the sliding bearing seat, with the sliding bearing seat, driving center, ring gear wears leads the footpath bolt, Bearing Installation is on box assembly

Described operating control mechanism comprises the control lever shaft assembly that is installed in box assembly top, the Handleset outside the box assembly of being positioned at this control lever shaft assembly left end, be connected the connecting sheet assembly of control lever shaft right-hand member, the pivoted loop assembly that is connected of connecting sheet assembly therewith, be connected the fore-set on the pivoted loop assembly and be contained in stop pawl on the pivoted loop assembly by leading the footpath bolt

Described clutch mechanism is positioned at the control lever shaft downside, comprises the spring seat that is connected with box assembly, and an end is contained in the central spindle of the spring in the spring seat, is enclosed within the spring on this central spindle of the spring, and the mandrel the other end passes the sliding bearing seat and is screwed in the pushing ring,

Described planetary mechanism comprises the planet carrier assembly, is installed in the planet wheel shaft in this planet frame component, is contained in the planet wheel on the planet wheel shaft and is contained in ratchet on the planet carrier assembly end face, and hook tooth and stop pawl are complementary.

Described gear bush and one group of planet wheel engagement, described ring gear and another group planet wheel engagement, two groups of planet wheels intermesh.

Establish sliding spline in the described driving center, spline is set on the described output shaft equally.

The reduction speed ratio that the gear ratio of described gear bush and ring gear equals to be scheduled to.

Three grooves are set on the described pushing ring, the clutch mechanism displacement distance that the degree of depth of this groove equals to be scheduled to, the pushing ring back side is waveform.

Tooth on described gear bush and the driving center is that high profile of tooth of tooth inserted tooth and low profile of tooth are arranged alternately.

Described fore-set front end is provided with steel ball, and the steel ball and the pushing ring back side contact.

Between described gear bush and the output shaft, between gear bush and the ring gear, between planet wheel and the planet wheel shaft, be respectively equipped with the oil-containing axle bush that powder metallurgy is made between planet carrier and the gear bush.

Described stop pawl turns angle-shaped piece for the band fillet, is provided with ratchet in inboard, a termination, is provided with elongated slot on another side, is provided with rotational axis hole turning angle-shaped piece corner.

Described planetary mechanism ratchet is connected on the planet carrier component by three bolts, connects with the annealing iron wire respectively between three bolts.

Planet differential actuator of the present invention, with casing driving mechanism, clutch mechanism, operating control mechanism and planetary mechanism are combined, and after by bolt machine and motor being connected, again this starter and motor together are affixed on the working platform of pumping unit.During startup, move operating handle, make the pulling of control lever shaft assembly in flakes, driving the pivoted loop assembly rotates around its center of circle, elongated slot on two stop pawls of pin compressing that connect together with the pivoted loop assembly makes it to turn over predetermined angle around its center of circle respectively, causes stop pawl with ratchet in the planetary mechanism and planet carrier braking; Simultaneously, fore-set on the pivoted loop assembly is then by inlaying steel ball thereon, promote clutch mechanism and drive ring gear in the driving mechanism, the braking hub, the sliding bearing seat is moved to the left, thereby driving center is separated with the tooth inserted tooth of gear bush, the motion of motor output this moment is via the gear bush in the driving mechanism, planet wheel in the planetary mechanism, with transmission of power to ring gear, and ring gear is because of being connected by leading the footpath bolt with driving center and sliding bearing seat, so, power via the sliding spline in the driving center with transmission of power to the output shaft that is provided with spline equally.Because in this process, planet carrier is braked, thereby makes planet wheel no longer become planet wheel, and is forced to do the fixed shaft wheel transmitting movement.Because the default number of teeth of gear bush in the driving mechanism and ring gear is poor, export again thereby make this motion of mechanism output slow down by predetermined speed ratios.

After start-up course finishes, turn back the operating handle of operating mechanism, the pivoted loop assembly is done under the effect of steering force and aforementioned rightabout rotation motion, and make two of pin compressings brake ratchet, make it to break away from the ratchet of planetary mechanism, braking is removed, planet carrier is done no load running around the complete machine shaft axis after slew constrained losing, meanwhile, ring gear in the driving mechanism, driving center, sliding bearing seat, moving to right under the spring action in clutch mechanism resets, and makes the tooth inserted tooth on the driving center in the driving mechanism and the tooth inserted tooth engagement of gear bush.At this moment, the power of motor output to the output shaft with spline, is delivered to belt pulley through output shaft with transmission of power again, thereby finishes 1: 1 speed ratio and power transmission process directly via gear bush, driving center.

In reseting procedure,, on the pushing ring of clutch mechanism, be provided with three each and every one grooves, mechanism's displacement distance that its degree of depth equals to be scheduled in order to ensure the needs that move.During work, the angle that the pivoted loop assembly is turned over is again three groove predeterminated positions on the pushing cyclization part just, thereby has also just satisfied the built-in displacement distance of driving mechanism requirement.

Therefore, the present invention has following distinguishing feature:

1, the start-up course slow-speed of revolution, output torque are big, after finishing startup, switch by state, realized that noise free, shock-free kinematic parameter change, guaranteed working efficiency again, thereby can replace bigger motor with lower-powered motor, both reduce equipment investment, reduced energy consumption again.

2, the tooth inserted tooth on gear bush and the driving center is designed to the height profile of tooth, so just make both differentials in movement process in conjunction with becoming no any obstruction, be that whichever tooth inserted tooth drops in which groove of the other side, all can realize noiseless ground, combination easily, and when pumping unit turns round, can prevent reversing impact effectively.

3, steel ball is set on fore-set, has changed the structural type of conventional mechanical formula transmission lock rationed marketing, reduced manufacture difficulty, but improved durability, thereby reduced cost of production to greatest extent.

4, in total, only adopt sliding bearing at the planetary pinion place, the oil-containing axle bush that remaining part adopts powder metallurgy to make, thus greatly reduce manufacture cost.

5, because each mechanism is in the operation of casing inner sealing, therefore can adopt common oil bath type lubricated, and lubricated and good cooling results, the working life of having improved equipment.

6, replacing belt and line service are all very convenient.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the driving mechanism schematic representation.

Fig. 3 is the structure side view of gear bush.

Fig. 4 is the A-A sectional view of Fig. 3.

Fig. 5 is that the K of Fig. 4 is to launching view.

Fig. 6 is the clutch mechanism schematic representation.

Fig. 7 is the side view of Fig. 6.

Fig. 8 is the operating control mechanism structural representation.

Fig. 9 is the side view of Fig. 8.

Figure 10 is the stop pawl schematic representation.

Figure 11 is the planetary mechanism structural representation.

Figure 12 is the side view of Figure 11.

Embodiment

Below in conjunction with description of drawings the specific embodiment of the present invention.

As shown in Figure 1, planet differential actuator of the present invention, comprise output shaft 11, be contained in the belt pulley 6 on this output shaft, box assembly 4, planetary mechanism 5 is characterized in that by the driving mechanism 1 that is arranged in the described box assembly 4, therewith the planetary mechanism 5 and the clutch mechanism 2 that are connected of driving mechanism 1, the operation control mechanism 3 that is connected of clutch mechanism 2 is formed therewith

As shown in Figure 2, described driving mechanism 1 comprises the gear bush 18 in the box assembly 4 of being located at that is used for being connected with motor output shaft, be contained in the output shaft 11 of these gear bush 18 front ends, be contained in the bearing 12 on the output shaft 11, the sliding bearing seat 13 on bearing right side, the planetary gears 5 that is meshed of gear bush 18 therewith, the ring gear 17 that is connected with this gear bush 18 by axle bush, be located at the driving center 15 between ring gear 17 and the sliding bearing seat 13, with sliding bearing seat 13, driving center 15, ring gear 17 wears leads footpath bolt 16, and bearing 12 is installed on the box assembly.Number in the figure 19 is the planet wheel back-up ring.

As Fig. 8, shown in Figure 9, described operating control mechanism comprises the control lever shaft assembly 32 that is installed in box assembly 4 tops, the Handleset 31 outside the box assembly 4 of being positioned at these control lever shaft assembly 32 left ends, be connected the connecting sheet assembly 33 of control lever shaft right-hand member, the pivoted loop assembly 36 that is connected of connecting sheet assembly 33 therewith is connected the fore-set 34 on the pivoted loop assembly 36 and is contained in stop pawl 35 on the pivoted loop assembly 36 by leading the footpath bolt.

As Fig. 6, shown in Figure 7, described clutch mechanism 2 is positioned at the control lever shaft downside, comprises that spring seat 21, one ends that are connected with box assembly 4 are contained in the central spindle of the spring 22 in the spring seat 21, be enclosed within the spring 23 on this central spindle of the spring 22, the mandrel the other end passes slip bearing 24 and is screwed in the pushing ring 25.Label 26 is a positioning work piece among Fig. 7, and 27 is bolt.

As Figure 11, shown in Figure 12, described planetary mechanism 5 comprises planet carrier assembly 53, be installed in the planet wheel shaft 51 in this planet frame component 53, be contained in the planet wheel 52 on the planet wheel shaft 51 and be contained in ratchet 54 on planet carrier assembly 53 end faces, hook tooth and stop pawl 35 are complementary.

As shown in Figure 1, described gear bush 18 and one group of planet wheel engagement, described ring gear 17 and another group planet wheel engagement, two groups of planet wheels intermesh.

Establish sliding spline 14 in the described driving center 15, on the described output shaft 11 spline is set equally.

The reduction speed ratio 2～3 that the gear ratio of described gear bush 18 and ring gear equals to be scheduled to.

As shown in Figure 5, three grooves are set on the described pushing ring, clutch mechanism displacement distance 6～10mm that the degree of depth of this groove equals to be scheduled to, the pushing ring back side is waveform.

As shown in Figure 4, the tooth on described gear bush and the driving center is that high profile of tooth 181 of tooth inserted tooth and low profile of tooth 182 are arranged alternately.

As shown in Figure 8, described fore-set front end is provided with steel ball, and the steel ball and the pushing ring back side contact.

As shown in Figure 1, between described gear bush and the output shaft, between gear bush and the ring gear, between planet wheel and the planet wheel shaft, between planet carrier and the geared sleeve, be respectively equipped with the oil-containing axle bush that powder metallurgy is made.

As shown in figure 10, described stop pawl 35 is provided with ratchet 353 for the angle-shaped piece that turns of band fillet in inboard, a termination, be provided with elongated slot 351 on another side, is provided with rotational axis hole 352 turning angle-shaped piece corner.

As shown in figure 12, described planetary mechanism ratchet is connected on the planet carrier assembly by three bolts, connects with annealing iron wire 55 respectively between three bolts 56.

In concrete enforcement, except that belt pulley and Handleset, entire mechanism all is contained in carries out closed operation in the box assembly, adopts common oil bath type (splashing) lubricated in the casing, has improved lubricated and cooling effect, has improved operational efficiency and life of equipment.

Claims

1, a kind of planet differential actuator, comprise output shaft, be contained in the belt pulley on this output shaft, box assembly, planetary mechanism, it is characterized in that by the driving mechanism that is arranged in the described box assembly, the planetary mechanism and the clutch mechanism that are connected of driving mechanism therewith, the operation control mechanism that is connected of clutch mechanism is formed therewith

2, planet differential actuator according to claim 1 is characterized in that described gear bush and one group of planet wheel engagement, described ring gear and another group planet wheel engagement, and two groups of planet wheels intermesh.

3, planet differential actuator according to claim 1 is characterized in that establishing sliding spline in the described driving center, and spline is set on the described output shaft equally.

4, planet differential actuator according to claim 1 is characterized in that the reduction speed ratio 2～3 that the gear ratio of described gear bush and ring gear equals to be scheduled to.

5, planet differential actuator according to claim 1 is provided with three grooves on the pushing ring that it is characterized in that being confused, clutch mechanism displacement distance 6～10mm that the degree of depth of this groove equals to be scheduled to, and the pushing ring back side is waveform.

6, planet differential actuator according to claim 1 is characterized in that the tooth on described gear bush and the driving center is that high profile of tooth of tooth inserted tooth and low profile of tooth are arranged alternately.

7, planet differential actuator according to claim 1 is characterized in that described fore-set front end is provided with steel ball, and the steel ball and the pushing ring back side contact.

8, planet differential actuator according to claim 1 is characterized in that between described gear bush and the output shaft, between gear bush and the ring gear, between planet wheel and the planet wheel shaft, be respectively equipped with the oil-containing axle bush that powder metallurgy is made between planet carrier and the gear bush.

9, planet differential actuator according to claim 1, it is characterized in that described stop pawl for the band fillet turn angle-shaped piece, be provided with ratchet in inboard, a termination, on another side, be provided with elongated slot, be provided with rotational axis hole turning angle-shaped piece corner.

10, planet differential actuator according to claim 1 is characterized in that described planetary mechanism ratchet is connected on the planet carrier assembly by three bolts, connects with the annealing iron wire respectively between three bolts.