CN110842538A

CN110842538A - Speed reducer assembly line

Info

Publication number: CN110842538A
Application number: CN201910989567.9A
Authority: CN
Inventors: 胡俊茂; 李泓霖; 丁帅; 李世田; 陈培凯
Original assignee: Tianjin Tanhas Technology Co Ltd
Current assignee: Tianjin Tanhas Technology Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-02-28

Abstract

The invention provides a speed reducer assembly line which comprises a shafting assembling station, a positioning pin installing station, a splicing gap adjusting station, a gluing station, a box assembling bolt mounting station, a box assembling bolt tightening station, a peripheral part assembling station, an air tightness detection station, a rotation test station, an experimental oil discharging station, an oil filling plugging station and a packaging delivery station which are sequentially arranged. The assembly line for the speed reducer has reasonable process station layout, especially reasonable design of parts in the process station, obviously improves the assembly quality of the speed reducer and improves the assembly efficiency.

Description

Speed reducer assembly line

Technical Field

The invention relates to the technical field of assembly of speed reducers, in particular to an assembly line of the speed reducers.

Background

The new energy automobile is a future development direction, and in consideration of the development potential of the industry and the requirements of customers in the future, the new energy automobile is put into research and development on parts of the new energy automobile, particularly, the research and development on an assembly of a pure electric and hybrid power speed reducer which is one of core components are particularly important, and the new energy automobile faces the research and development requirements and the requirements for improving the productivity and the quality for a speed reducer manufacturer. The assembly process of the automobile speed reducer is a technological process of sequentially assembling assembly lines for speed reducer parts, and the assembly lines are very critical in the whole production process due to complex technology, so that higher requirements are provided for the assembly process of the speed reducer. At present, the assembly production of the new energy automobile speed reducer is still in a primary stage in China, and the assembly process has the problems of unreasonable process station layout, low quality of process operation stations, unreasonable arrangement of related devices in the process stations and the like.

Disclosure of Invention

In view of this, the invention aims to provide a speed reducer assembly line, which has reasonable process station layout, especially reasonable and exquisite design of relevant devices in the process stations, obviously improves the assembly quality of the speed reducer, and improves the assembly efficiency.

In order to solve the technical problems, the technical scheme adopted by the invention is to provide a speed reducer assembly line: the assembling device comprises a shafting assembling station, a positioning pin installing station, a splicing gap adjusting station, a gluing station, a box assembling bolt installing station, a screwing box assembling bolt station, a peripheral part assembling station, an air tightness detecting station, a rotary testing station, an experimental oil discharging station, an oil filling and blocking station and a packaging and discharging station which are sequentially arranged, wherein the shafting assembling station comprises an assembling tool, the positioning pin installing station comprises a positioning pin installing device, the splicing gap adjusting station comprises a splicing gap adjusting device, the gluing station comprises a gluing tool, the box assembling bolt station, the screwing box assembling bolt station and the peripheral part assembling station respectively comprise a spanner, the air tightness detecting station comprises an air tightness leak detector, the rotary testing station comprises a speed reducer rotary testing device, and the experimental oil discharging station comprises an oil well pump, the oil filling and blocking station comprises an oil plug, and the packaging and delivery station comprises a packaging mechanism;

the positioning pin mounting device comprises a guide rod and a weight type impact hammer, the weight type impact hammer is sleeved outside the guide rod in a sliding manner, the tail end of the guide rod is connected with a plug, the plug comprises an impact part and a positioning pin inserting part which are connected, the weight type impact hammer is positioned above the impact part, and the weight type impact hammer can be in contact with the impact part in the vertical direction in the downward moving process;

the rotation testing device of the speed reducer comprises a stopping mechanism, wherein the stopping mechanism comprises a pressing rod, a connecting rod, a guide rod and a stop pin which are sequentially connected, the stop pin and the pressing rod are respectively arranged on the inner side and the outer side of an assembly line support, the connecting rod is abutted to the lower side of the assembly line support, and a reset spring is sleeved on the outer side of the guide rod.

Further, the force application part and the positioning pin insertion part are both cylindrical structures, the diameter of the force application part is larger than that of the positioning pin insertion part, and the force application part is connected with the positioning pin insertion part through an inclined step surface.

Furthermore, the splicing gap adjusting device comprises a gap adjusting gasket and a gap adjusting gasket sleeve for containing the gap adjusting gasket, an opening is formed in the side wall of the gap adjusting gasket sleeve, and the gap adjusting gasket is stacked in the gap adjusting gasket sleeve.

Furthermore, stop mechanism still includes according to the pressure lever base and backing pin base, backing pin base up end is less than the assembly line support, the backing pin is located in the backing pin base, the backing pin is higher than the assembly line support, according to the pressure lever position in according to the pressure lever base.

Further, the rotation testing device for the speed reducer further comprises a speed reducer fixing disc, a plurality of bolt holes are evenly distributed in the circumferential direction of the speed reducer fixing disc, the bolt holes are of long round hole structures, and a transmission shaft inserting hole is formed in the center of the speed reducer fixing disc.

The oil seal dismounting device comprises a pull ring supporting seat, and the pull ring supporting seat is connected with a blocking cover through a long screw; the pull ring supporting seat is provided with a guide groove, and an oil seal pull ring is movably connected in the guide groove; the upper part of the oil seal pull ring is provided with a connecting plate which is positioned above the pull ring supporting seat; the lower part of the oil seal pull ring is provided with a clamping hook; a pull rod penetrates through the connecting plate and is connected with the connecting plate through threads; the pull rod penetrates through the pull ring supporting seat; the top of the pull ring supporting seat is fixedly connected with a spring supporting frame; the spring support frame is formed by connecting a horizontal end plate and a vertical end plate; the pull rod penetrates through the horizontal end plate; the upper end of the pull rod is fixedly connected with a connecting block, and the connecting block is located above the horizontal end plate.

Further, be provided with first smooth hole on the pull ring supporting seat, the pull rod passes first smooth hole, be provided with on the horizontal end plate second smooth hole, the pull rod passes second smooth hole, be provided with the spring on the pull rod, the spring is located the connecting plate with between the horizontal end plate, fixedly connected with rocking arm on the connecting block, pull ring supporting seat side fixedly connected with handle.

The invention has the advantages and positive effects that:

(1) set up locating pin installation device, locating pin installation device integrates weight formula impact hammer and direction rod as an organic whole, and direction rod tip sets up the plug, and the plug is including the portion of exerting oneself and the locating pin insertion part that connect gradually, smashes the portion of exerting oneself through weight formula impact hammer, and the hammering power is through exerting oneself the indirect action on the locating pin of portion, installs the locating pin in the locating pin mounting hole in the procapsid to the locating pin terminal surface that causes has prevented directly to pound damages, has protected the locating pin terminal surface greatly.

(2) The gap adjusting device is provided with the gap adjusting gasket to adjust the axial movement of the speed reducer, so that the gap between the butt joint parts reaches the most appropriate position, zero return difference and low noise of the speed reducer are realized, and the gap adjusting gasket sleeve used for containing the gap adjusting gasket is arranged, so that the whole gap adjusting gasket is placed and taken simply and conveniently.

(3) Set up the rotatory testing arrangement of reduction gear, the rotatory testing arrangement of reduction gear is including stopping mechanism and reduction gear fixed disk, through will stopping during the backing pin in the mechanism inserts the removal layer board of bearing reduction gear to make stopping of reduction gear fast and stable on the assembly line, and carry out not equidirectional and not fixed of angle through the reduction gear fixed disk to the reduction gear, thereby accomplish the rotation test to the all-round multi-angle of reduction gear.

(4) A pull rod in the reducer oil seal dismounting device is in threaded connection with an oil seal pull ring, and the upward movement of the oil seal pull ring can be realized through the rotation of the pull rod, so that the oil seal gradually leaves the reducer shell; the spring is arranged on the pull rod and is always in a compression state, so that the upper end face of the oil seal pull ring can be tightly attached to the upper end face of the pull ring supporting seat, and the upper end face of the spring supporting seat is tightly attached to the lower end face of the connecting block.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of an assembly station connection configuration of a retarder assembly line of the present invention;

FIG. 2 is a schematic view of the locating pin mounting arrangement of the present invention;

FIG. 3 is a schematic structural diagram of a splicing gap-adjusting device of the present invention;

FIG. 4 is a schematic structural view of a stop mechanism in the reducer rotation testing apparatus of the present invention;

FIG. 5 is a schematic view showing the structure of a stopper mechanism of the rotation testing device of the speed reducer of the present invention during its travel;

FIG. 6 is a schematic view of a connection structure between a stop mechanism and a movable supporting plate in the rotation testing device of the reducer of the present invention;

FIG. 7 is a schematic plan view of a reducer fixing disk in the reducer rotation testing apparatus of the present invention;

FIG. 8 is a schematic view of a rotational test connection of the rotational testing apparatus of the decelerator of the present invention;

FIG. 9 is a schematic cross-sectional view of the oil seal removing device of the present invention;

FIG. 10 is a schematic cross-sectional view taken at A-A of FIG. 9;

fig. 11 is a schematic view of an application structure of the oil seal dismounting device of the invention.

Description of reference numerals:

01-shafting assembling station; 02-positioning pin mounting station; 1-a locating pin mounting device; 11-a guide stick; 12-weight impact hammer; 13-a plug; 131-a force application part; 132-a locating pin insertion; 14-a handle; 03-splicing gap adjusting station; 2-splicing gap adjusting device; 21-gap adjusting gasket; 22-a gap-adjusting shim sleeve; 23-gap adjusting gasket sleeve placing frame; 04-gluing station; 05-assembling a bolt station on the box; 06-screwing a box closing bolt station; 07-a peripheral component assembly station; 08-air tightness detection station; 09-rotating the test station; 3-a reducer rotation testing device; 31-a stop mechanism; 311-pressing rod; 312-a connecting rod; 313-a guide bar; 314-a catch pin; 315-a return spring; 316-pressing rod base; 317-stop pin base; 318-return spring mount; 32-a reducer mounting plate; 321-bolt holes; 322-drive shaft insertion hole; 33-a motor; 4-oil seal dismounting device; 41-pull ring support seat; 411-a guide slot; 412-a first smooth hole; 413-a handle; 42-long screw; 43-a stop cover; 44-oil seal ring pull; 441-trip; 45-connecting plates; 46-a pull rod; 461-spring; 47-spring support frame; 471-horizontal end plate; 471 a-second smooth hole; 472-vertical end plate; 48-connecting block; 481-Rocker arm; 5, assembling the line support; 6, moving the supporting plate; 61-stop pin insertion holes; 7-a reducer; 8-reducer oil seal; 9-oil seal clamping groove; 010-an experimental oil drain station; 011-oiling plugging station; 012-packaging shipment station.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the elements or components must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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

As shown in fig. 1, the invention provides a reducer assembly line, which comprises a shafting assembling station 01, a positioning pin mounting station 02, a splicing gap adjusting station 03, a gluing station 04, a box assembling bolt mounting station 05, a box screwing bolt mounting station 06, a peripheral part assembling station 07, an air tightness detection station 08, a rotation test station 09, an experimental oil drain station 010, an oil filling and sealing station 011 and a packaging cargo discharging station 012 which are sequentially arranged, wherein the shafting assembling station 01 comprises an assembling tool, the positioning pin mounting station 02 comprises a positioning pin mounting device 1, the splicing gap adjusting station 03 comprises a splicing gap adjusting device 2, the gluing station 04 comprises a gluing tool, the box assembling bolt mounting station 05, the box screwing bolt mounting station 06 and the peripheral part assembling station 07 comprise wrenches, and the air tightness detection station 08 comprises an air tightness instrument, rotatory test station 09 includes the rotatory testing arrangement 3 of reduction gear, experimental oil drain station 010 includes the oil-well pump, it is stifled including oil to refuel stifled station 011, packing shipment station 012 includes packagine machine structure. Wherein, install differential mechanism, jackshaft, input shaft in the procapsid on shafting is assembled station 01 (the shafting is assembled and has been carried out relevant patent application, see specifically 2019214179301-a reduction gear shafting and assemble equipment, and it is no longer repeated here), the assembly instrument of specific use includes bracket, assembles fixture etc. and the bracket is used for holding the procapsid, assembles the fixture and is used for moving away the bracket. A positioning pin is installed in a front shell of the speed reducer at a positioning pin installation station 02, and specifically, a positioning pin installation device 1 is adopted. And a gap adjusting gasket 21 is placed on the end surface of the outer ring of the differential bearing, the end surface of the outer ring of the intermediate shaft bearing and the end surface of the outer ring of the input shaft bearing of the front shell at a splicing gap adjusting station 03, and a splicing gap adjusting device 2 is specifically adopted. And coating a plane sealant on the bonding surface of the front shell at a gluing station 04, wherein a gluing tool used specifically comprises a glue gun and the like. Assembling the box and placing the connecting bolt into the bolt hole on a box assembling bolt assembling station 05; screwing the connecting bolt on a screwing box-assembling bolt station 06; installing peripheral parts such as an oil filling port screw plug, an oil drain hole magnetic screw plug, a vent hole vent plug and a front shell section differential oil seal block on a peripheral part assembling station 07; the mould assembling bolt assembling station 05, the mould assembling bolt screwing station 06 and the peripheral part assembling station 07 comprise wrenches, and the wrenches are used for screwing bolts (screw plugs). The speed reducer and the air tightness detector are connected on the air tightness detection station 08 to detect the air tightness of the speed reducer, the air tightness detection station 08 comprises an air tightness leak detector, and the air tightness of the speed reducer is detected by connecting an air tightness detection mandrel in the air tightness leak detector with the shell. The speed reducer is connected with the motor on a rotary testing station 09 to carry out rotary testing on the speed reducer, and a speed reduction box rotary testing device 3 is specifically adopted. The experimental oil in the rotation test is discharged on the experimental oil discharging station 010, and an oil well pump is adopted to pump the experimental oil in the speed reducer completely. The oil is filled into the speed reducer at an oil filling plugging station 011, a service oil plug is arranged at the oil filling plugging station, and an oil discharge hole and an oil seal hole of the speed reducer are plugged. The speed reducer is packed and shipped at a packing and shipping station 012, and packing mechanisms such as packing boxes are provided.

As shown in fig. 2 to 11, the dowel pin mounting device 1 comprises a guide rod 11 and a weighted impact hammer 12, wherein the weighted impact hammer 12 is slidably sleeved outside the guide rod 11, a plug 13 is connected to the end of the guide rod 11, the plug 13 comprises an impact part 131 and a dowel pin insertion part 132 which are connected, the weighted impact hammer 12 is positioned above the impact part 131, and the weighted impact hammer 12 can be vertically contacted with the impact part 131 during the downward movement process;

specifically, the force application portion 131 and the positioning pin insertion portion 132 are both cylindrical structures, the diameter of the force application portion 131 is larger than that of the positioning pin insertion portion 132, and the force application portion 131 and the positioning pin insertion portion 132 are connected through an oblique step surface.

Further, the splicing gap adjusting device 2 includes a gap adjusting gasket 21 and a gap adjusting gasket sleeve 22 for containing the gap adjusting gasket 21, an opening 221 is formed in a side wall of the gap adjusting gasket sleeve 22, and the gap adjusting gasket 21 is stacked in the gap adjusting gasket sleeve 22.

The positioning pin is mainly installed to ensure that the front shell and the rear shell of the speed reducer can be accurately and firmly butted when being spliced and combined. However, the existing positioning pin mounting device is usually a simple guide rod, and is mounted in a hammer striking mode, even if the device is not used for convenience, the positioning pin is mounted in the positioning pin mounting hole in a hammer striking mode or a press pressing mode. These approaches have their disadvantages, such as the possibility of the pin not being vertically mounted, resulting in a skewed fit of the front and rear housings, an unstable butt joint, and excessive force damaging the end faces of the pin, or damaging the housings during press-fitting. The guide rod 11 and the weight type impact hammer 12 are designed to be integrally connected, the weight type impact hammer 12 can slide outside the guide rod 11, the end part of the guide rod 11 is connected with the plug 13, the positioning pin is sleeved outside the positioning pin insertion part 132 in actual use, the weight type impact hammer 12 is lifted to the highest position to enable the weight type impact hammer to freely fall down to impact the impact part 131, and the impact force indirectly acts on the positioning pin through the impact part 131, so that the end surface of the positioning pin is greatly protected, and the end surface damage of the positioning pin caused by direct impact is prevented. The connection of guide rod 11 and plug 13 is including threaded connection's detachable connection, and detachable connection makes can select different plugs 13 according to the locating pin of different specifications, then overlaps the locating pin of putting different specifications in the outside of locating pin inserting part 132 to accomplish the installation of different specification locating pins. In addition, the inclined step surface in the plug 13 not only plays a role in guiding and ensuring accurate positioning, but also can effectively avoid the problem of difficulty in inserting or pulling out the positioning pin.

The gap adjusting gasket 21 is mainly used for adjusting the axial play amount of the speed reducer, so that the gap between the butted parts reaches the most appropriate position, and zero return difference and low noise of the speed reducer are realized. In the process, gap adjusting gaskets 21 with different specifications and different thicknesses are required to be used, so that the gap adjusting gaskets 21 with different specifications are arranged, gap adjusting gasket sleeves 22 with different specifications are arranged, the gap adjusting gasket sleeve placing frame 23 is arranged on the assembly line side, the gap adjusting gasket sleeves 22 with different specifications are regularly arranged in the placing area of the gap adjusting gasket sleeve placing frame 23, and the gap adjusting gaskets 21 with any specification can be conveniently taken at any time.

Furthermore, the speed reducer rotation testing device 3 comprises a stopping mechanism 31, wherein the stopping mechanism 31 comprises a pressing rod 311, a connecting rod 312, a guide rod 313 and a stop pin 314 which are sequentially connected, the stop pin 314 and the pressing rod 311 are respectively arranged on the inner side and the outer side of the assembly line bracket 5, the connecting rod 312 is abutted to the lower part of the assembly line bracket 5, and a return spring 315 is sleeved on the outer side of the guide rod 313.

Specifically, the stopping mechanism 31 further comprises a pressing rod 311 base and a stop pin 314 base, the upper end face of the stop pin 314 base is lower than the assembly line support 5, the stop pin 314 is located in the stop pin 314 base, the stop pin 314 is higher than the assembly line support 5, and the pressing rod 311 is located in the pressing rod 311 base.

Specifically, reduction gear rotation testing arrangement 3 still includes reduction gear fixed disk 32, reduction gear fixed disk 32 circumference equipartition has a plurality of bolt holes 321, bolt hole 321 is slotted hole shape structure, reduction gear fixed disk 32 center is provided with transmission shaft patchhole 322.

The decelerator rotation testing apparatus 3 includes a stopping mechanism 31 for quickly stopping the decelerator 7 on the assembly line bracket 5 and a decelerator fixing disk 32 for fixing the decelerator 7 at different angles and in different directions. In the actual assembly process of the speed reducer 7, the speed reducer 7 is placed on the movable supporting plate 6, and the movable supporting plate 6 is connected to the assembly line bracket 5 in a sliding mode (the speed reducer 7 in the invention is mainly assembled by hand, wherein the speed reducer 7 slides on the assembly line bracket 5 consisting of non-power rollers in a manual sliding mode). In operation, the pressing rod 311 is pressed downwards, the guide rod 313 and the stop pin 314 move downwards, the stop pin 314 retracts into the stop pin base 317, and meanwhile, the wider stop pin 314 moves downwards to contact and press and cooperate with 318 the return spring base to compress the return spring 315; when the pressing rod 311 is released (not pressed), the return spring 315 rebounds, and the stop pin 314 returns to the original state under the action of the return spring 315 and extends out of the stop pin base 317, so that the stop pin 314 extends in and out of the travel path of the speed reducer. Because the speed reducer 7 needs to be subjected to motor rotation tests in different directions and different angles in the production and assembly processes, the speed reducer fixing disc 32 capable of fixing the speed reducer 7 in different directions and different angles is arranged. That is, the speed reducer 7 is vertically placed and rotated to a certain angle (inclination), and then is fixed on the speed reducer fixing disk 32 through bolts to perform a rotation test; then the bolt is removed, and the angle is changed to another fixed angle, and the bolt is fixed on the reducer fixing disc 32 for carrying out the rotation test again; the above operations are repeated in this way, and a plurality of rotation tests of the speed reducer 7 at a plurality of angles and in a plurality of directions are completed.

Further, an oil seal dismounting device 4 for oil seal dismounting is also included. The oil seal is required to be installed for sealing in the assembling process of the speed reducer, so that the leakage of lubricating oil is prevented, and the reasonable installation of the oil seal plays an important role in the sealing of the speed reducer. The outer edge of the oil seal is in interference fit with the inner hole of the shell, the oil seal and the shell are required to keep relatively static in the using process, and the oil seal and the shell cannot be separated. The speed reducer generally needs to be used on line continuously, the oil seal belongs to a quick-wear part, the oil seal of the speed reducer can be damaged in the using process and the assembling process, and if the oil seal is not installed in place in the assembling process of the speed reducer, the oil seal is required to be detached and replaced in time. However, the existing oil seal removing tool often causes mechanical damage to the oil seal and surrounding parts, and therefore, the oil seal removing device 4 for removing the oil seal is provided in the invention.

Specifically, the oil seal dismounting device 4 comprises a pull ring support seat 41, wherein the pull ring support seat 41 is connected with a blocking cover 43 through a long screw 42; the pull ring supporting seat 41 is provided with a guide groove 411, and an oil seal pull ring 44 is movably connected in the guide groove 411; a connecting plate 45 is arranged at the upper part of the oil seal pull ring 44, and the connecting plate 45 is positioned above the pull ring supporting seat 41; the lower part of the oil seal pull ring 44 is provided with a hook 441; a pull rod 46 penetrates through the connecting plate 45 and is connected with the threads; the pull rod 46 passes through the pull ring support base 41; the top of the pull ring supporting seat 41 is fixedly connected with a spring supporting frame 47; the spring support frame 47 is formed by connecting a horizontal end plate 471 and a vertical end plate 472; the tie rods 46 pass through the horizontal end plate 471; a connecting block 48 is fixedly connected to the upper end of the pull rod 46, and the connecting block 48 is located above the horizontal end plate 471.

Specifically, a first smooth hole 412 is formed in the pull ring supporting seat 41, the pull rod 46 penetrates through the first smooth hole 412, a second smooth hole 471a is formed in the horizontal end plate 471, the pull rod 46 penetrates through the second smooth hole 471a, a spring 461 is arranged on the pull rod 46, the spring 461 is located between the connecting plate 45 and the horizontal end plate 471, a rocker 481 is fixedly connected to the connecting block 48, and a handle 413 is fixedly connected to the side face of the pull ring supporting seat 41.

The operation process of the invention comprises the following steps: 1. assembling a shaft system; 2. installing a positioning pin: the positioning pin is sleeved outside the positioning pin inserting part 132 of the plug 13 and is placed on a positioning pin mounting hole of a front shell to be led in, so that the chamfer of the positioning pin and the chamfer of the positioning pin mounting hole are matched with each other, then the guide rod 11 is kept vertical, the weight type impact hammer 12 is lifted to the highest position to enable the weight type impact hammer to freely fall down and impact the impact part 131, the impact part 131 of the plug 13 is continuously impacted by the weight type impact hammer 12, the impact force indirectly acts on the positioning pin through the impact part 131, and the positioning pin is mounted in the positioning pin mounting hole in the front shell. 3. And installing a gap adjusting gasket 21: and selecting proper gap adjusting gaskets 21 to be placed on the end faces of the outer ring of the differential bearing, the outer ring of the intermediate shaft bearing and the outer ring of the input shaft bearing in the front shell for installation. 4. Coating glue and screwing bolts: and coating a plane sealant on the bonding surface of the front shell at a gluing station 04. And assembling the box and placing the connecting bolt into the bolt hole at a box assembling bolt assembling station 05. And the connecting bolt is screwed up at the screwing box assembling bolt station 06. 5. Assembling peripheral parts: installing an oil filling port screw plug, an oil drain hole magnetic screw plug, a vent hole vent plug, installing a front shell section differential oil seal block and the like. And (3) completing the splicing of the front shell and the rear shell of the speed reducer after the

steps

1, 2, 3, 4 and 5 are sequentially carried out, so as to obtain the speed reducer after the box is closed.

6. And (3) detecting the air tightness of the speed reducer: the procapsid face of the reduction gear after will closing the case is put steadily downwards, and airtight detection dabber in airtight detector is connected with the casing, opens air inlet switch, detects internal pressure, unloads airtight detection dabber after detecting and accomplishing. 7. And (3) rotation test of the speed reducer: pressing the pressing rod 311 downwards, and moving the stop pin 314 downwards to extend out of the travel route of the speed reducer; sliding the movable supporting plate 6 with the reducer on the assembly line bracket 5 until the stop pin jack 61 in the movable supporting plate 6 is positioned right above the stop pin 314; then, the pressing rod 311 is released, the stop pin 314 moves upwards under the action of the return spring 315 to restore the original state and penetrates into the stop pin insertion hole 61 of the movable supporting plate 6, so that the movable supporting plate 6 is clamped and stopped on the assembly line bracket 5, and the speed reducer is stopped. Then the front shell end of the reducer is downward and horizontally placed; and (3) injecting test oil into the rear shell oil seal hole of the speed reducer by using an oil filling gun, and plugging the rear shell oil seal hole by using a differential oil seal after the injection is finished. Finally, vertically placing the speed reducer to a certain angle (as shown in fig. 8), fixing the speed reducer on the speed reducer fixing disc 32 through the bolt hole 321 by using a bolt, enabling a transmission shaft on the motor 33 to pass through the transmission shaft insertion hole 322 in the center of the speed reducer fixing disc 32 to be matched and assembled with the speed reducer, and starting the motor 33 to perform a rotation experiment; the bolt is disassembled to release the fixed connection between the speed reducer and the speed reducer fixing disc 32, the speed reducer is readjusted to another fixed angle, and then the speed reducer is fixed on the speed reducer fixing disc 32 through the bolt to carry out the rotation test again; and repeating the operation until the multi-direction and multi-angle rotation test of the speed reducer is completed.

8. And (3) oil drainage of experimental oil: the front shell end of the reducer is placed downwards and horizontally, the magnetic screw plug of the oil discharge hole is removed, the oil gun nozzle of the oil well pump is connected into the oil discharge hole, the reducer is placed vertically, the oil well pump is connected, and the test oil in the reducer is completely pumped. 9. Refueling, plugging and packaging for shipment: and (4) oiling in the speed reducer and packaging and discharging.

In addition, when the oil blanket installation is not in place, the assembly causes the oil blanket mistake to be decreased and the reduction gear uses the oil blanket to damage for a long time in the assembling process, make oil blanket dismounting device demolish the oil blanket so that in time change, and the step that the oil blanket was dismantled is: firstly, the rocker 481 is rotated, the pull rod 46 rotates, the horizontal end plate 471 of the spring support frame 47 is always attached to the connecting block 48 under the action of the spring 461, and the pull rod 46 cannot move up and down; since the pull rod 46 is screwed to the connecting plate 45 of the oil seal pull ring 44, the rotation of the pull rod 46 enables the oil seal pull ring 44 to be lifted on the pull rod 46. Adjusting the position of the oil seal pull ring 44 so that the oil seal pull ring 44 is in a lower position; the handle 413 is held, so that the lower end face of the pull ring supporting seat 41 is attached to the end face of the speed reducer; the clamping hook 441 at the lower part of the oil seal pull ring 44 enters the oil seal clamping groove 9 on the speed reducer oil seal 8, and the clamping hook 441 is used for clamping the bottom of the oil seal; the handle 413 is held by one hand, the connecting block 48 is pressed down by the other hand, the rocker arm 481 is rotated, the oil seal pull ring 44 moves upwards along with the rotation of the pull rod 46, and the hook 441 hooks the bottom of the speed reducer oil seal 8 to lift the speed reducer oil seal 8; and (3) loosening the oil seal pull ring 44, adjusting the position of the oil seal pull ring 44, and repeating the steps at the oil seal clamping groove 9 in the other direction of the speed reducer oil seal 8 to unload the oil seal.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a reduction gear assembly line which characterized in that: the shafting assembling device comprises a shafting assembling station (01), a positioning pin installing station (02), a splicing gap adjusting station (03), a gluing station (04), a box closing bolt installing station (05), a box closing bolt screwing station (06), a peripheral part assembling station (07), an air tightness detection station (08), a rotation test station (09), an experimental oil drainage station (010), an oil filling and blocking station (011) and a packaging and delivery station (012) which are sequentially arranged, wherein the shafting assembling station (01) comprises an assembling tool, the positioning pin installing station (02) comprises a positioning pin installing device (1), the splicing gap adjusting station (03) comprises a splicing gap adjusting device (2), the gluing station (04) comprises a gluing tool, the box closing bolt installing station (05), the box closing bolt installing station (06) and the peripheral part assembling station (07) both comprise wrenches, the air tightness detection station (08) comprises an air tightness leak detector, the rotation test station (09) comprises a speed reducer rotation test device (3), the experimental oil discharging station (010) comprises an oil pump, the oiling and plugging station (011) comprises an oil plug, and the packaging and delivery station (012) comprises a packaging mechanism;

the positioning pin mounting device (1) comprises a guide stick (11) and a weight type impact hammer (12), the weight type impact hammer (12) is slidably sleeved outside the guide stick (11), the tail end of the guide stick (11) is connected with a plug (13), the plug (13) comprises an impact part (131) and a positioning pin inserting part (132) which are connected, the weight type impact hammer (12) is positioned above the impact part (131), and the weight type impact hammer (12) can be in contact with the impact part (131) in the vertical direction in the downward moving process;

the speed reducer rotation testing device (3) comprises a stopping mechanism (31), the stopping mechanism (31) comprises a pressing rod (311), a connecting rod (312), a guide rod (313) and a stop pin (314) which are sequentially connected, the stop pin (314) and the pressing rod (311) are respectively arranged on the inner side and the outer side of an assembly line support (5), the connecting rod (312) is abutted to the lower side of the assembly line support (5), and a return spring (315) is sleeved on the outer side of the guide rod (313).

2. The assembly line of the speed reducer according to claim 1, wherein the force application part (131) and the positioning pin insertion part (132) are both cylindrical structures, the diameter of the force application part (131) is larger than that of the positioning pin insertion part (132), and the force application part (131) and the positioning pin insertion part (132) are connected through an oblique step surface.

3. The assembly line of the speed reducer according to claim 1, wherein the splicing gap adjusting device (2) comprises a gap adjusting gasket (21) and a gap adjusting gasket sleeve (22) for containing the gap adjusting gasket (21), an opening (221) is formed in the side wall of the gap adjusting gasket sleeve (22), and the gap adjusting gasket (21) is stacked in the gap adjusting gasket sleeve (22).

4. The assembly line of retarders of claim 1 wherein said stop mechanism (31) further comprises a pressing lever base (316) and a stop pin base (317), an upper end face of said stop pin base (317) being lower than an upper end face of said assembly line bracket (5), said stop pin (314) being located in said stop pin base (317), said stop pin (314) being higher than said upper end face of said assembly line bracket (5), said pressing lever (311) being located in said pressing lever base (316).

5. The speed reducer assembly line of claim 1, wherein the speed reducer rotation testing device (3) further comprises a speed reducer fixing disc (32), a plurality of bolt holes (321) are uniformly distributed in the circumferential direction of the speed reducer fixing disc (32), the bolt holes (321) are of long round hole structures, and a transmission shaft insertion hole (322) is formed in the center of the speed reducer fixing disc (32).

6. The assembly line of the speed reducer according to claim 1, further comprising an oil seal removing device (4) for oil seal removal, wherein the oil seal removing device (4) comprises a pull ring support base (41), and the pull ring support base (41) is connected with a blocking cover (43) through a long screw (42); a guide groove (411) is formed in the pull ring support seat (41), and an oil seal pull ring (44) is movably connected in the guide groove (411); a connecting plate (45) is arranged at the upper part of the oil seal pull ring (44), and the connecting plate (45) is positioned above the pull ring supporting seat (41); the lower part of the oil seal pull ring (44) is provided with a clamping hook (441); a pull rod (46) is connected with the connecting plate (45) through threads; the pull rod (46) penetrates through the pull ring supporting seat (41); the top of the pull ring supporting seat (41) is fixedly connected with a spring supporting frame (47); the spring support frame (47) is formed by connecting a horizontal end plate (471) and a vertical end plate (472); the pull rod (46) penetrates through the horizontal end plate (471); the upper end of the pull rod (46) is fixedly connected with a connecting block (48), and the connecting block (48) is located above the horizontal end plate (471).

7. The assembly line of the speed reducer of claim 6, wherein the pull ring support (41) is provided with a first smooth hole (412), the pull rod (46) penetrates through the first smooth hole (412), the horizontal end plate (471) is provided with a second smooth hole (471a), the pull rod (46) penetrates through the second smooth hole (471a), the pull rod (46) is provided with a spring (461), the spring (461) is positioned between the connecting plate (45) and the horizontal end plate (471), the connecting block (48) is fixedly connected with a rocker arm (481), and the side surface of the pull ring support (41) is fixedly connected with a handle (413).