CN215109756U

CN215109756U - Axial floating compensation gear synchronous shunting motor

Info

Publication number: CN215109756U
Application number: CN202121255180.XU
Authority: CN
Inventors: 周亚东; 包珍举
Original assignee: Hefei Yangsheng Hydraulic Technology Co ltd
Current assignee: Hefei Yangsheng Hydraulic Technology Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-10
Anticipated expiration: 2031-06-04

Abstract

The utility model provides an axial compensation gear that floats shunts motor in step, including the reposition of redundant personnel motor of 2 at least synchronous linkages, it is adjacent communicate through the connecting plate between the reposition of redundant personnel motor, and every reposition of redundant personnel motor all is equipped with an independent oil-out, the reposition of redundant personnel motor is equipped with a public oil inlet, be equipped with inside seal groove and outer seal groove on the connecting plate, be equipped with first annular rectangle circle in the inside seal groove and be used for the compensation of axial float, the outer seal inslot is equipped with second annular rectangle circle and is used for sealing the oil circuit. The utility model carries out floating compensation between the shaft sleeves of the adjacent shunt motors through the first annular rectangular ring, so that the floating shaft sleeves are tightly attached to the gear end surface of the motor, and the preset maximum axial compensation amount can be set to be 0.15 mm; the gear synchronous shunting motor is guaranteed to have high volumetric efficiency for a long time through floating compensation, and the service life of a product under a special working condition is effectively prolonged.

Description

Axial floating compensation gear synchronous shunting motor

Technical Field

The utility model relates to an agricultural machinery, light industry, engineering machine tool's motor technical field, in particular to synchronous reposition of redundant personnel motor of axial floating compensation gear.

Background

The gear synchronous shunt motor is one of the important elements of the hydraulic synchronous system, and is also the heart of the hydraulic synchronous motion equipment. It has the characteristics of simple structure, small volume, light weight, insensitivity to oil pollution and the like. The hydraulic synchronous system is widely applied to hydraulic synchronous systems in the fields of agricultural machinery, light industry, engineering machinery and the like.

The existing gear synchronous shunt motor has wide application fields, such as lifting platforms, multipoint synchronization of shield machines in engineering machinery, grain bin lifting of agricultural machinery and the like. In most fields, the gear synchronous shunting motor has good working condition due to low system working pressure and low use frequency. The axial fixed clearance structure is selected at home and abroad, the structure is convenient for improving the starting performance of the synchronous shunt motor, and can reduce the production and manufacturing cost of the product, but the service life of the product is not high in the agricultural machinery with special working conditions.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing an axial floating compensation gear synchronous shunting motor carries out the terminal surface compensation of floating through the gear end face cooperation rectangle circle elastomer at adjacent shunting motor, has guaranteed that gear synchronous shunting motor has high volumetric efficiency for a long time, the effectual life who improves the product under special operating mode.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides an axial floating compensation gear synchronous shunting motor includes 2 at least synchronous linkage's reposition of redundant personnel motors, and is adjacent communicate through the connecting plate between the reposition of redundant personnel motor, and every reposition of redundant personnel motor all is equipped with an independent oil-out, the reposition of redundant personnel motor is equipped with a public oil inlet, be equipped with inside seal groove and outer seal groove on the connecting plate, be equipped with first annular rectangle circle in the inside seal groove and be used for the compensation of axial floating, the outer seal inslot is equipped with second annular rectangle circle and is used for sealing the oil circuit.

Further, the reposition of redundant personnel motor includes the casing and is located inside driving gear, driven gear of casing and sets up the axle sleeve at driving gear and driven gear both sides tip, the driving gear sets up side by side from top to bottom and meshes with driven gear, connects and the torque transmission through the flat key between the respective driving gear of adjacent reposition of redundant personnel motor.

Further, the motor cover further comprises a rear cover, and the rear cover is used for sealing the shunt motors at the two ends.

The split-flow motor assembly is characterized by further comprising a mounting bracket, mounting screws, short positioning pins and long positioning pins, wherein two adjacent split-flow motors are positioned and mounted through the long positioning pins, the mounting bracket is arranged on the rear cover and used for assembly and fixation, and the rear cover is connected with the split-flow motors in a pre-tightening mode through the mounting screws.

Furthermore, an inner sealing groove and an outer sealing groove are also formed in the rear cover.

Further, the inner side of the inner seal groove is an oil inlet side, and an oil outlet side is arranged between the outer side of the inner seal groove and the inner side of the outer seal groove.

Furthermore, the left and right sides of connecting plate all is equipped with interior seal groove and outer seal groove.

Furthermore, the first annular rectangular ring and the second annular rectangular ring are elastic bodies.

Has the advantages that: the utility model carries out floating compensation between the shaft sleeves of the adjacent shunt motors through the first annular rectangular ring, so that the floating shaft sleeves are tightly attached to the gear end surface of the motor, and the preset maximum axial compensation amount can be set to be 0.15 mm; the gear synchronous shunting motor is guaranteed to have high volumetric efficiency for a long time through floating compensation, and the service life of a product under a special working condition is effectively prolonged.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic perspective view of an axial floating compensation gear synchronous shunting motor according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an axial floating compensation gear synchronous shunting motor according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a connection plate of the axial floating compensation gear synchronous shunting motor according to the embodiment of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

At present, synchronous shunt motors in foreign countries (such as Italy and England) are all in a fixed gap structure. Because the domestic agricultural receiving machine is used seasonally, the use frequency of the received crops is high, and the receiving time is long; the operation environment of the agricultural goods receiving machine is severe, such as high temperature in summer, fine straw particles and flying dust during field operation easily enter a hydraulic system through a breather and an oil tank oil filling port, and metal and nonmetal particles in oil can aggravate the abrasion of a friction pair in the gear synchronous motor, so that the action of an execution element of the hydraulic system is slowed down or does not have action; typical agricultural pick-up machine users are front-line agricultural users who are less conscious of the equipment being regularly maintained and serviced. In the agricultural goods receiving machine with special working conditions, the service life of the synchronous shunt motor is not long.

Example 1

Based on the above drawbacks of the prior art, see fig. 1-3: the embodiment provides an axial floating compensation gear synchronous shunt motor, including at least 2 synchronous linkage's shunt motor 1, it is adjacent communicate through connecting plate 2 between the shunt motor 1, and every shunt motor 1 all is equipped with an independent oil-out, shunt motor 1 is equipped with a public oil inlet, be equipped with inner seal groove 20 and outer seal groove 21 on the connecting plate 2, be equipped with first annular rectangle circle 22 in the inner seal groove 20 and be used for the axial floating compensation, be equipped with second annular rectangle circle 23 in the outer seal groove 21 and be used for sealing the oil circuit.

In the embodiment, floating compensation is performed between the shaft sleeves of the adjacent shunt motors through the first annular rectangular ring in the inner sealing groove, so that the floating shaft sleeves are tightly attached to the gear end face of the motor, and the preset maximum axial compensation amount is 0.15 mm. This embodiment has guaranteed through the compensation that floats that the synchronous reposition of redundant personnel motor of gear has high volumetric efficiency for a long time, and the effectual life that improves the product under special operating mode.

In a specific example, the shunt motor 1 includes a housing 10, a driving gear 11, a driven gear 12, and shaft sleeves 13 disposed at two side ends of the driving gear 11 and the driven gear 12, the driving gear 11 and the driven gear 12 are disposed side by side and engaged with each other, the driving gears 11 of adjacent shunt motors 1 are connected and torque transmitted by a flat key, the shunt motor further includes a rear cover 14, the rear cover 14 is used for sealing the shunt motors 1 at two ends, the shunt motor further includes a mounting bracket 140, a mounting screw 141, a short positioning pin 142, and a long positioning pin 15, two adjacent shunt motors 1 are positioned and mounted by the long positioning pin 15, the mounting bracket 140 is disposed on the rear cover 14 for assembly and fixation, the rear cover 14 is pre-tightened and connected to each shunt motor 1 by the mounting screw 141, the rear cover 14 is also provided with an inner seal groove 20 and an outer seal groove 21.

The connection and the torque transmission between the driving gears of the adjacent shunt motors are realized through the connection of a pair of flat keys, so that the number of components and the structure of the components are reasonably designed and reduced, the production and manufacturing cost can be effectively reduced, and the influence of accumulated errors of excessive parts on the overall precision of a product can be avoided.

It should be noted that, a connecting plate with a relatively small thickness is arranged between two adjacent housings in the embodiment, the rear cover, the housings and the connecting plate are respectively positioned by the short positioning pin and the long positioning pin, and are connected by external mounting screws in a pre-tightening manner, so that the mounting or dismounting is simple and convenient.

In concrete implementation, the mounting holes reserved on the mounting bracket can be used for mounting the steel beam below the grain bin of the harvesting machine. Because of its light in weight, the installation is simple, and installation, dismantlement and maintenance are all comparatively labour saving and time saving.

In a specific example, the inner side of the inner seal groove 20 is an oil inlet side, an oil outlet side is arranged between the outer side of the inner seal groove 20 and the inner side of the outer seal groove 21, the inner seal groove 20 and the outer seal groove 21 are arranged on the left side and the right side of the connecting plate 2, and the first annular rectangular ring 22 and the second annular rectangular ring 23 are elastic bodies.

First annular rectangle circle, second annular rectangle circle are all installed in the cooperation to the connecting plate left and right sides of this embodiment, and both are the elastomer, consequently this embodiment can realize the axial floating compensation at every reposition of redundant personnel motor both ends through the elastomer, and the biggest axial compensation volume that can predetermine is 0.15 mm.

In specific implementation and application, the embodiment is further described below with a quadruple synchronous motor, and the embodiment is provided with a common oil inlet and four parallel oil outlets. The external characteristics are that the mounting brackets at two ends, the rear covers at two ends, four motor shells with the same size and the same precision and three connecting plates are arranged among the shells. The mounting bracket comprises a left side and a right side, and parts in external characteristics of the product are made of high-strength aluminum alloy, so that the product is light in weight and good in heat dissipation.

The design load of the hydraulic system of the receiving machinery granary matched with the four-linkage synchronous motor of the embodiment is 16MPa, and the requirement of the synchronous precision of the four oil cylinders is 2-3%. During actual work, the granary of the receiving machinery has no load in the lifting process, only the weight of the granary is lifted, the total weight of the granary is about 150Kg, and the load pressure P converted into the lifting state of each hydraulic cylinder is about 0.5 MPa. According to the conservation of energy of PQ-P1Q 1+ P2Q2+ P3Q3+ P4Q4, the self weight of the granary is changed in the lifting process, even if a certain supporting oil cylinder of the granary is inclined, the lifting weight of a single hydraulic pressure is changed, the influence on the flow Q of the hydraulic cylinder is extremely small, namely the influence on the stroke of the hydraulic cylinder is small; and after the granary is lifted to the stroke end, increasing the load of the heavy object, wherein the maximum value of the total load is about 3 tons when the granary is fully loaded. When the hydraulic cylinder travels reversely, namely after the multi-way valve is reversed, the hydraulic cylinder begins to descend synchronously under the action of the load of the hydraulic system and the dead weight of the heavy object. In the whole process, even if a certain position of the granary is heavy, the rodless cavity of the oil cylinder is communicated with the gear synchronous motor system, and the gear synchronous shunt motor is communicated with the oil return oil circuit of the system and can be directly unloaded, namely each oil cylinder can run to the stroke end point. In summary, the gear synchronous shunt motor for the system does not need to be provided with an overflow valve for eliminating the synchronous stroke end point error. The structure is more compact and small, and the price is more advantageous.

The internal characteristic of this embodiment is that the horizontal rigid coaxial driving gears are connected in series, and the rigid connection is good in resisting the deformation capability of the stress in the torque transmission process. The deformation of the device is reduced, and meanwhile, the influence on the synchronous precision of the product is also reduced. Meanwhile, a connecting plate with a smaller thickness is arranged between every two shells of the four shells with the same size and the same processing precision in the horizontal direction, the shells, the connecting plate and the rear cover are positioned by long and short positioning pins, and the shells, the connecting plate and the rear cover are connected by external mounting screws in a pre-tightening manner, so that the mounting or dismounting is simple and convenient. The connection and the torque transmission between the driving gears are realized through the connection of a pair of flat keys, the number of components and the structure of the components are reasonably designed and reduced, the production and manufacturing cost can be effectively reduced, and the influence of accumulated errors of excessive parts on the overall precision of a product can be avoided.

The inside of each shell is provided with a driving gear, a driven gear and a shaft sleeve which have the same size and the same processing precision. High-pressure hydraulic oil at an inlet of the gear motor enters an oil inlet cavity channel of the shell and is distributed to the oil inlet cavity sides of the four motor shells, partial hydraulic energy is converted into mechanical energy, and the driving gear drives the driven gear to rotate. Because the parts in the four shells are the same size and the same processing precision, and the internal leakage value of the gear pair is a fixed value, the equivalent distribution of the flow can be realized.

In conclusion, the inside of each casing of this embodiment all has driving gear and driven gear with the size and with the machining precision, and the left and right sides of gear is the axle sleeve, through setting up the interior seal groove on back lid and connecting plate, installs annular rectangle circle elastomer. According to a shaft sleeve front and back hydraulic thrust formula F front hydraulic pressure < (F back hydraulic thrust + F elastic body force), the floating shaft sleeve is tightly attached to the end face of the gear, and the preset maximum axial compensation amount is 0.15 mm; therefore, the gear synchronous shunting motor is guaranteed to have high volumetric efficiency for a long time, and the service life of a product under a special working condition is effectively prolonged.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an axial compensation gear synchronous reposition of redundant personnel motor that floats, its characterized in that, shunt motor (1) including 2 at least synchronous linkages, it is adjacent communicate through connecting plate (2) between shunt motor (1), and every shunt motor (1) all is equipped with an independent oil-out, shunt motor (1) is equipped with a public oil inlet, be equipped with inner seal groove (20) and outer seal groove (21) on connecting plate (2), be equipped with first annular rectangle circle (22) in inner seal groove (20) and be used for the axial compensation of floating, be equipped with second annular rectangle circle (23) in outer seal groove (21) and be used for sealing up the oil circuit.

2. The synchronous split-flow motor of axial floating compensation gear according to claim 1, wherein the split-flow motor (1) comprises a housing (10), a driving gear (11) and a driven gear (12) which are arranged inside the housing (10), and shaft sleeves (13) arranged at two side ends of the driving gear (11) and the driven gear (12), the driving gear (11) and the driven gear (12) are arranged side by side up and down and meshed, and the respective driving gears (11) of adjacent split-flow motors (1) are connected and torque transmitted through flat keys.

3. The axial floating compensated gear synchronous split motor according to claim 2, further comprising a back cover (14), the back cover (14) being used for sealing the split motor (1) at both ends.

4. The synchronous shunt motor of claim 3, further comprising a mounting bracket (140), a mounting screw (141), a short positioning pin (142) and a long positioning pin (15), wherein two adjacent shunt motors (1) are positioned and mounted through the long positioning pin (15), the mounting bracket (140) is arranged on the rear cover (14) for assembly and fixation, and the rear cover (14) is connected with the shunt motors (1) in a pre-tightening manner through the mounting screw (141).

5. The axial floating compensating gear synchronous split motor according to claim 3, characterized in that the rear cover (14) is also provided with an inner seal groove (20) and an outer seal groove (21).

6. The synchronous split motor of claim 1, wherein the inner side of the inner seal groove (20) is an oil inlet side, and an oil outlet side is arranged between the outer side of the inner seal groove (20) and the inner side of the outer seal groove (21).

7. The synchronous split-flow motor of axial floating compensation gear according to claim 1, characterized in that the connecting plate (2) is provided with inner sealing groove (20) and outer sealing groove (21) on both left and right sides.

8. The axial floating compensation gear synchronous split motor according to claim 1, wherein the first annular rectangular ring (22) and the second annular rectangular ring (23) are both elastic bodies.