CN209604491U - A kind of speed reducer - Google Patents

Abstract

The utility model relates to a kind of speed reducers, including motive power motor and retarder, motive power motor and retarder are cooperatively connected, retarder includes deceleration box, level Four gear drive group, bearing assembly and gearshift, level Four gear drive group includes one-stage gear group, secondary gear group, tertiary gear group and level Four gear set, level Four gear set includes transmission connection axis, transmission connection the tip of the axis is provided with the shock absorbing device for absorbing transmission connection axis axial impact force, shock absorbing device include and transmission connection the matched shell of the tip of the axis, it is set to the intracorporal shock-absorbing spring of shell, shock absorbing device further includes the baffle ring for being sheathed on transmission connection the tip of the axis, shell is sheathed on transmission connection the tip of the axis, the lateral wall of baffle ring and the inner sidewall of shell abut against, shock-absorbing spring one end is abutted against with baffle ring, the inside bottom surface of the other end and shell It abuts against.The utility model provide it is a kind of can absorb axial impact force, improve complete machine service life, avoid the speed reducer for generating excessive noise.

Description

A kind of speed reducer

Technical field

The utility model relates to a kind of speed reducers.

Background technique

Gear transmission speed reducer is a kind of power transmission mechanism, the velocity transducer of gear is utilized, by the revolution of motor Number decelerates to desired winding number, and obtains the device of larger torque.A kind of relatively accurate machinery, uses when transmission speed reducer Its purpose is to reduce revolving speed, increases torque.Existing speed reducer in use, connects with external working machine or executing agency The transmission connection axis connect will receive biggish impact force, and impact force can generate the impact force of an axial direction to transmission connection axis, make At the abrasion of bearing, influence the performance of complete machine, shorten the service life of complete machine, at the same axial impact force can make gear and gear it Between engagement axial displacement or collision occurs, generate biggish noise.

Utility model content

Purpose of the utility model is to solve the above problem, provide it is a kind of can absorb axial impact force, improve complete machine Service life avoids the speed reducer for generating excessive noise.

To achieve the above object, the utility model provides following technical solution: a kind of speed reducer, including motive power motor And retarder, the motive power motor and retarder are cooperatively connected, the retarder includes deceleration box, is set to deceleration box Interior level Four gear drive group, bearing assembly and the gearshift being cooperatively connected with level Four gear drive group, the level Four tooth It takes turns transmission group to be cooperatively connected by bearing assembly and deceleration box, the level Four gear drive group includes one-stage gear group, second level Gear set, tertiary gear group and level Four gear set, the one-stage gear group and the mutual cooperation of secondary gear group are engaged transmission, The secondary gear group and the mutual cooperation of tertiary gear group are engaged transmission, and the tertiary gear group and level Four gear set are mutual Cooperation is engaged transmission, and the level Four gear set includes transmission connection axis, and the transmission connection the tip of the axis setting is useful In the shock absorbing device for absorbing transmission connection axis axial impact force, the shock absorbing device includes and the transmission connection the tip of the axis The shell matched is set to the intracorporal shock-absorbing spring of shell, and the shock absorbing device further includes being sheathed on the transmission connection the tip of the axis Baffle ring, the shell is sheathed on the transmission connection the tip of the axis, the inner sidewall of the lateral wall of the baffle ring and the shell It abuts against, the shock-absorbing spring one end is abutted against with baffle ring, and the inside bottom surface of the other end and the shell abuts against.

Through the above technical solutions, motive power motor and retarder cooperate, retarder includes deceleration box, level Four gear biography Dynamic group, bearing assembly, gearshift, level Four gear drive group are set in deceleration box by bearing assembly, gearshift and Level Four gear drive group is cooperatively connected, and level Four gear drive group includes one-stage gear group, secondary gear group, tertiary gear group and four Grade gear set, the one-stage gear group and the mutual cooperation of secondary gear group are engaged transmission, the secondary gear group and three-level Gear set mutual cooperation is engaged transmission, and the tertiary gear group and the mutual cooperation of level Four gear set are engaged transmission, real The transmitting of shift and the torque of existing level Four gear drive transmission ratio.Level Four gear set includes transmission connection axis, and be sequentially connected axis Output end and external working machine or executing agency are cooperatively connected, and realize that the transmitting of torque, rotation connection the tip of the axis setting are useful In the shock absorbing device for absorbing transmission connection axis axial impact force, the shell of shock absorbing device is arranged and transmission connection the tip of the axis, gear Ring set is set to be set in shell with transmission connection the tip of the axis, shock-absorbing spring, and one end and the baffle ring of shock-absorbing spring abut against, another It holds and is abutted against with the inside bottom surface of the shell, when the axis that is sequentially connected is generated the power of axial float by impact force, transmission connects The baffle ring of spindle end is contacted with the intracorporal shock-absorbing spring of shell, pressure is generated to shock-absorbing spring, so that shock-absorbing spring-compressed, will rush Power absorption is hit, the damage to bearing is reduced.

The utility model is further arranged: the shock absorbing device further includes being set to the intracorporal sound-absorbing sponge of shell, the suction Sound sponge is filled in the gap of the shock-absorbing spring.

By using above-mentioned technical proposal, sound-absorbing sponge is filled in the gap of shock-absorbing spring, and sound-absorbing sponge can effectively inhale It receives shock-absorbing spring and is being carried out the friction noise generated in contraction process by axial impact force.

The utility model is further arranged: the one-stage gear group includes the output axis connection with the motive power motor One-stage gear axis is set to two teeth of one tooth of shift connected on one-stage gear axis by gear clutch collar and shift, the second level Gear set includes two tooth of transmission with one tooth of transmission of shift one tooth cooperation and with shift two teeth cooperation, the tertiary gear group packet It includes tertiary gear axis, be set to three tooth of shift connected on tertiary gear axis by gear combined cover and four teeth of shift, the biography A dynamic tooth and two teeth of transmission are set on tertiary gear axis, described four and gear set further include being set on transmission connection axis and changing Three tooth of transmission, four tooth of transmission with shift four teeth cooperation for keeping off the cooperation of three teeth.

By using above-mentioned technical proposal, one-stage gear group includes two teeth of one-stage gear axis, one tooth of shift and shift, second level Gear set includes two teeth of one tooth of transmission and transmission, and tertiary gear group includes four teeth of tertiary gear axis, three teeth of shift and shift, level Four Gear set further includes four teeth of three teeth of transmission and transmission, the output shaft mating connection of one-stage gear axis and motive power motor, shift one Tooth and two teeth of shift are set on one-stage gear axis, and under the action of gearshift, shift and is set to tertiary gear axis at one tooth On one tooth of transmission cooperation transmission or shift two teeth be set on tertiary gear axis two tooth of transmission cooperation be driven, transmission one Tooth or two teeth of transmission drive tertiary gear axis to be rotated, and tertiary gear axis drives the shift three being set on tertiary gear axis Tooth, four teeth of shift are rotated, under the action of gearshift, three teeth of shift and three tooth of transmission being set on transmission connection axis Cooperation transmission or four teeth of shift are driven with the transmission level Four cooperation being set on transmission connection axis, are driven four teeth of three teeth or transmission It drives transmission connection axis to be rotated, makes the torque transfer driven on transmission connection axis to external working machine or executing agency On, realize the transmitting of torque.

The utility model is further arranged: the gearshift and level Four gear drive group cooperate, the gearshift packet It includes and is set to deceleration box and corresponds to the shift motor of motive power motor side, be set in deceleration box and shift motor cooperation Shift assembly, the shift assembly include the shift rotary shaft being cooperatively connected by bearing assembly with deceleration box, are set to and change The shift that gear rotary shaft corresponds to the guiding axis of level Four gear drive group side and is cooperatively connected with shift rotary shaft and guiding axis Connection unit, the shift connection unit include the first shift part being set in shift rotary shaft and the second shift part, with the The second connector that the first connector and the second shift part that one shift part is cooperatively connected are cooperatively connected, first connector And second be arranged in the middle part of connector and do opposite sliding, first connector on guiding axis and along the axial direction of guiding axis The other end of opposite first shift part is connect with the gear clutch collar of the one-stage gear group, and second connector is with respect to first The other end of shift part is connect with the gear clutch collar of the tertiary gear group.

By using above-mentioned technical proposal, gearshift and level Four gear drive group are cooperatively connected, and gearshift includes changing Motor, shift assembly are kept off, shift assembly includes shift rotary shaft, guiding axis and shift link unit, and shift connection unit includes First shift part, the second shift part, the first connector, the second connector, shift motor drive shift rotary shaft, shift rotary shaft On first shift part and second shift part rotated, one end of the first connector with first shift part be cooperatively connected, it is another End is connect with the gear clutch collar of one-stage gear group, and middle part is sheathed on guiding axis, the first connector and the first shift part cooperation Connection drives one-stage gear group to do opposite sliding along one-stage gear axis axial direction, so that one tooth of shift is mutually nibbled with one tooth of transmission It closes or separation, two teeth of shift is intermeshed or separates with two teeth of transmission, realize the shift of one-stage gear group and secondary gear group, together The transmitting of Shi Shixian different drive ratios torque；One end of second connector is cooperatively connected with the second shift part, the other end and three-level The gear clutch collar of gear set connects, and middle part is sheathed on guiding axis, and the second connector and the second shift part are cooperatively connected and drive Tertiary gear group is done along tertiary gear axis axial direction and is slided relatively, so that three teeth of shift and three teeth of transmission are intermeshed or divide From four teeth of shift are intermeshed or separate with four teeth of transmission, realize the shift of tertiary gear group and level Four gear set, realize simultaneously The transmitting of different drive ratios torque.

The utility model is further arranged: shift slot is provided on the first shift part and the second shift part, described the One end of a connection piece and the corresponding first shift part of the second connector and the second shift part is set in shift slot, and described first connects Fitting drives one tooth of shift and two teeth of shift to do opposite sliding along the axial direction of one-stage gear axis, and second connector drives Shift gears three teeth and four teeth of shift along the axial direction of tertiary gear axis do opposite sliding

By using above-mentioned technical proposal, it is provided with shift slot on the first shift part and the second shift part, shift motor drives Move gear rotary shaft, the first shift part and the second shift part to be circumferentially rotated, the connection of the first connector and the first shift part End be set to shift slot in, the second connector with second shift part connecting pin be set to shift slot in, with first shift gears part, The rotation of second shift part, the first connector drive one tooth of shift of one-stage gear group and two teeth of shift axial along one-stage gear axis Direction sliding, the second connector drive three tooth of shift of tertiary gear group and four teeth of shift sliding along tertiary gear axis axial direction It is dynamic, it realizes the shift of one-stage gear group and secondary gear group, realizes the shift of tertiary gear group and level Four gear set.

The utility model is further arranged: the one-stage gear axis corresponds to output shaft one end setting of the motive power motor There is shock absorbing device.

By using above-mentioned technical proposal, output shaft one end that one-stage gear axis corresponds to the motive power motor is equally arranged There is shock absorbing device, one tooth of shift and two teeth of shift on one-stage gear axis are under the drive of the first shift connector along one-stage gear The axial direction of axis does opposite sliding, and one-stage gear axis can be made to generate axial float, at the same the output shaft of motive power motor with One-stage gear axis is cooperatively connected, and the output shaft of motive power motor can generate axial float, and the setting of shock absorbing device can absorb transmission Axial impact force onto one-stage gear axis avoids reducing axial punching so that one-stage gear axis keeps stable in the process of running Hit injury of the power to bearing.

The utility model is further arranged: the deceleration box is sound-absorbing cabinet.

By using above-mentioned technical proposal, deceleration box uses sound-absorbing body structure, so that being confined air in deceleration box Between, the internal noise issued in use that issues can be largely absorbed, so that point for the noise that complete machine operation generates Shellfish controls within the scope of people's acceptable, prevents noise pollution.

The utility model is further arranged: the deceleration box side is additionally provided with cooling fan, the deceleration box pair Cooling fan side is answered to be provided with heat release hole.

By using above-mentioned technical proposal, deceleration box side is provided with cooling fan, and deceleration box corresponds to cooling fan Side is provided with heat release hole, and cooling fan and heat release hole cooperate, can take away the intracorporal heat of reduction gearbox, reach cooling effect, keep away It is excessively high to exempt from temperature rise in deceleration box.

The utility model is further arranged: the output that the deceleration box corresponds to the transmission connection axis is provided with solid Determine flange, the transmission connection axis and mounting flange junction are provided with outside framework oil seal.

By using above-mentioned technical proposal, the corresponding transmission connection axis output of deceleration box is provided with mounting flange, passes Dynamic connecting shaft is connect by outside framework oil seal with mounting flange, and mounting flange is connect with external working machine or executing agency, external work Make machine and transmission connection axis connection, so that matching revolving speed and transmitting torque between motive power motor and working machine；Outside framework oil seal will The inside of deceleration box is isolated from the outside, so that the intracorporal lubricating oil of reduction gearbox will not be revealed, has also obstructed extraneous dust, miscellaneous Matter enters in deceleration box.

With reference to the accompanying drawing and specific embodiment is described further the utility model.

Detailed description of the invention

Fig. 1 is the overall structure figure of the utility model embodiment；

Fig. 2 is the local structural graph one of the utility model embodiment；

Fig. 3 is enlarged drawing at A in Fig. 2；

Fig. 4 is the local structural graph two of the utility model embodiment；

Figure label meaning: motive power motor -1, retarder -2, deceleration box -3, cooling fan -31, heat release hole -32, Mounting flange -33, outside framework oil seal -34, one-stage gear group -41, one-stage gear axis -411, tooth -412 of shifting gears, two teeth-of shifting gears 413, secondary gear group -42 are driven tooth -421, are driven two tooth -422, tertiary gear group -43, tertiary gear axis -431, shift Three tooth -432, four tooth -433 of shifting gears, level Four gear set -44, be sequentially connected axis -441, is driven three tooth -442, is driven four tooth -443, Bearing assembly -5, shift motor -61, rotary shaft -621 of shifting gears, guiding axis -622, the first shift part -631, the second shift part - 632, first connector -633, the second connector -634, slot -635 of shifting gears, shock absorbing device -7, shell -71, shock-absorbing spring -72, Baffle ring -73, sound-absorbing sponge -74.

Specific embodiment

This specific embodiment is only the explanation to the present embodiment, is not the limitation to the present embodiment, this field skill Art personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as All by the protection of Patent Law in the scope of the claims of the present embodiment.

Referring to attached drawing 1-4, present embodiment discloses a kind of speed reducer, including motive power motor 1 and retarder 2, the originals Power motor 1 and retarder 2 are cooperatively connected, and the retarder 2 includes deceleration box 3, the level Four tooth being set in deceleration box 3 Transmission group, bearing assembly 5 and the gearshift being cooperatively connected with level Four gear drive group are taken turns, the level Four gear drive group is logical It crosses bearing assembly 5 and deceleration box 3 is cooperatively connected, the level Four gear drive group includes one-stage gear group 41, secondary gear group 42, tertiary gear group 43 and level Four gear set 44, the one-stage gear group 41 are engaged with the mutual cooperation of secondary gear group 42 Transmission, the secondary gear group 42 are engaged transmission, the tertiary gear group 43 and four with the mutual cooperation of tertiary gear group 43 The grade mutual cooperation of gear set 44 is engaged transmission, and the level Four gear set 44 includes transmission connection axis 441, and the transmission connects The end of spindle 441 is provided with the shock absorbing device 7 for absorbing transmission connection 441 axial impact force of axis, and the shock absorbing device 7 wraps Include with the transmission connection axis 441 end matched shell 71, the shock-absorbing spring 72 that is set in shell 71, the shock-absorbing dress Setting 7 further includes the baffle ring 73 for being sheathed on the end of the transmission connection axis 441, and the shell 71 is sheathed on the transmission connection axis 441 end, the lateral wall of the baffle ring 73 and the inner sidewall of the shell 71 abut against, described 72 one end of shock-absorbing spring and gear Ring 73 abuts against, and the inside bottom surface of the other end and the shell 71 abuts against.Through the above technical solutions, motive power motor 1 with Retarder 2 cooperates, and retarder 2 includes deceleration box 3, level Four gear drive group, bearing assembly 5, gearshift, and level Four gear passes Dynamic group is set in deceleration box 3 by bearing assembly 5, and gearshift and level Four gear drive group are cooperatively connected, level Four gear Transmission group includes one-stage gear group 41, secondary gear group 42, tertiary gear group 43 and level Four gear set 44, the one-stage gear group 41 are engaged transmission with the mutual cooperation of secondary gear group 42, the secondary gear group 42 and tertiary gear group 43 cooperate into Row engaged transmission, the tertiary gear group 43 are engaged transmission with the mutual cooperation of level Four gear set 44, realize that level Four gear passes The transmitting of shift and the torque of dynamic transmission ratio.Level Four gear set 44 includes transmission connection axis 441, and transmission connection axis 441 exports End is cooperatively connected with external working machine or executing agency, realizes the transmitting of torque, and rotation connection the tip of the axis is provided with for inhaling The shock absorbing device 7 of transmission connection 441 axial impact force of axis is received, the shell 71 of shock absorbing device 7 is arranged the end with transmission connection axis 441 End, baffle ring 73 are arranged the end with transmission connection axis 441, and shock-absorbing spring 72 is set in shell 71, one end of shock-absorbing spring 72 It is abutted against with baffle ring 73, the inside bottom surface of the other end and the shell 71 abuts against, when transmission connection axis 441 is produced by impact force When the power of raw axial float, the baffle ring 73 of transmission connection 441 end of axis is contacted with the shock-absorbing spring 72 in shell 71, to shock-absorbing bullet Spring 72 generates pressure, so that shock-absorbing spring 72 compresses, impact force is absorbed, and reduces the damage to bearing.

The present embodiment is further arranged: the shock absorbing device 7 further includes the sound-absorbing sponge 74 being set in shell 71, described Sound-absorbing sponge 74 is filled in the gap of the shock-absorbing spring 72.By using above-mentioned technical proposal, sound-absorbing sponge 74 is filled in In the gap of shock-absorbing spring 72, sound-absorbing sponge 74 can effectively absorb shock-absorbing spring 72 and shrank by axial impact force The friction noise generated in journey.

The present embodiment is further arranged: the one-stage gear group 41 includes the output axis connection with the motive power motor 1 One-stage gear axis 411, be set to one tooth 412 of shift connected on one-stage gear axis 411 by gear clutch collar and shift two Tooth 413, the secondary gear group 42 include cooperating with one tooth 421 of transmission of shift one tooth 412 cooperation and with two teeth 413 of shift Two teeth 422 are driven, the tertiary gear group 43 includes tertiary gear axis 431, is set on tertiary gear axis 431 through gear knot Four teeth 433 of three tooth 432 of shift and shift of trap connection, one tooth 421 of the transmission and two teeth 422 of transmission are set to tertiary gear On axis 431, described four and gear set further include be set to transmission connection axis 441 on shift three teeth 432 cooperation three tooth of transmission 442, four tooth 443 of transmission cooperated with four teeth 433 of shift.By using above-mentioned technical proposal, one-stage gear group 41 includes level-one Two teeth 413 of gear shaft 411, one tooth 412 of shift and shift, secondary gear group 42 include two teeth 422 of one tooth 421 of transmission and transmission, Tertiary gear group 43 includes four teeth 433 of tertiary gear axis 431, three teeth 432 of shift and shift, and level Four gear set 44 further includes transmission Four teeth 443 of three teeth 442 and transmission, the output shaft of one-stage gear axis 411 and motive power motor 1 are cooperatively connected, shift gears a tooth 412 and Two teeth 413 of shifting gears are set on one-stage gear axis 411, under the action of gearshift, one tooth 412 of shift be set to three-level tooth One tooth 421 of transmission cooperation transmission or shift two on wheel shaft 431 teeth 413 and the transmission two that is set on tertiary gear axis 431 The cooperation transmission of tooth 422, is driven a tooth 421 or two teeth 422 of transmission drive tertiary gear axis 431 to be rotated, tertiary gear axis 431 Three tooth 432 of shift being set on tertiary gear axis 431, four teeth 433 of shift is driven to be rotated, in the effect of gearshift Under, three teeth 432 of shift cooperate transmission or four teeth 433 of shift and set with three tooth 442 of transmission being set on transmission connection axis 441 The transmission level Four cooperation transmission being placed on transmission connection axis 441, is driven three teeth 442 or four teeth 443 of transmission drive transmission connection axis 441 are rotated, and are made to drive in the torque transfer to external working machine or executing agency on transmission connection axis 441, are realized and turn The transmitting of square.

The present embodiment is further arranged: the gearshift and level Four gear drive group cooperate, and the gearshift includes It is set to the shift motor 61 of corresponding 1 side of motive power motor of deceleration box 3, is set in deceleration box 3 and shift motor 61 The shift assembly of cooperation, the shift assembly include the shift rotary shaft being cooperatively connected by bearing assembly 5 and deceleration box 3 621, be set to the corresponding level Four gear drive group side of shift rotary shaft 621 guiding axis 622 and with shift rotary shaft 621 and The shift connection unit that guiding axis 622 is cooperatively connected, the shift connection unit include the be set in shift rotary shaft 621 One shift part 631 and second shift part 632, with first shift part 631 be cooperatively connected the first connector 633, with second shift The middle part of the second connector 634 that part 632 is cooperatively connected, first connector 633 and the second connector 634 is arranged and is oriented to Opposite sliding is done on axis 622 and along the axial direction of guiding axis 622, the opposite first shift part 631 of first connector 633 The other end is connect with the gear clutch collar of the one-stage gear group 41, the opposite first shift part 631 of second connector 634 The other end is connect with the gear clutch collar of the tertiary gear group 43.By using above-mentioned technical proposal, gearshift and level Four Gear drive group is cooperatively connected, and gearshift includes shift motor 61, shift assembly, shift assembly include shift rotary shaft 621, Guiding axis 622 and shift link unit, shift connection unit include that the first shift shift part 632, first of part 631, second connects Part 633, the second connector 634, shift motor 61 drive shift rotary shaft 621, shift rotary shaft 621 on first shift part 631 and second shift part 632 rotated, one end of the first connector 633 with first shift part 631 be cooperatively connected, the other end It is connect with the gear clutch collar of one-stage gear group 41, middle part is sheathed on guiding axis 622, the first connector 633 and the first shift Part 631, which is cooperatively connected, drives one-stage gear group 41 to do opposite sliding along 411 axial direction of one-stage gear axis, so that one tooth of shift 412 are intermeshed or separate with one tooth 421 of transmission, and two teeth 413 of shift are intermeshed or separate with two teeth 422 of transmission, realize one The shift of grade gear set 41 and secondary gear group 42, while realizing the transmitting of different drive ratios torque；The one of second connector 634 End is cooperatively connected with the second shift part 632, and the other end is connect with the gear clutch collar of tertiary gear group 43, and middle part is sheathed on guiding On axis 622, the second connector 634 and the second shift part 632 are cooperatively connected and drive tertiary gear group 43 along 431 axis of tertiary gear axis Opposite sliding is done to direction, so that three teeth 432 of shift are intermeshed or separate with three teeth 442 of transmission, four tooth 433 of shift and transmission The intermeshing of four teeth 443 or separation, realize the shift of tertiary gear group 43 and level Four gear set 44, while realizing different drive ratios The transmitting of torque.

The present embodiment is further arranged: it is provided with shift slot 635 on the first shift part 631 and the second shift part 632, One end of first connector 633 and the corresponding first shift part 631 of the second connector 634 and the second shift part 632 is set to It shifts gears in slot 635, first connector 633 drives one tooth 412 of shift and two teeth 413 of shift along the axis of one-stage gear axis 411 Opposite sliding is done to direction, second connector 634 drives three teeth 432 of shift and four teeth 433 of shift along tertiary gear axis 431 Axial direction do it is opposite slide through by adopting the above technical scheme, be provided on the first shift part 631 and the second shift part 632 Shift slot 635, the driving of shift motor 61 shift rotary shaft 621, first shift part 631 and the second shift part 632 circumferentially turn Dynamic, the connecting pin of the first connector 633 and the first shift part 631 is set in shift slot 635, the second connector 634 and second Shift part 632 connecting pin be set to shift slot 635 in, with first shift part 631, second shift gears part 632 rotation, first Connector 633 drives one tooth 412 of shift of one-stage gear group 41 and two teeth 413 of shift sliding along 411 axial direction of one-stage gear axis Dynamic, the second connector 634 drives three tooth 432 of shift of tertiary gear group 43 and four teeth 433 of shift axial along tertiary gear axis 431 Direction sliding, realizes the shift of one-stage gear group 41 and secondary gear group 42, realizes tertiary gear group 43 and level Four gear set 44 Shift.

The present embodiment is further arranged: output shaft one end of the corresponding motive power motor 1 of the one-stage gear axis 411 is set It is equipped with shock absorbing device 7.By using above-mentioned technical proposal, the output shaft one of the corresponding motive power motor 1 of one-stage gear axis 411 End is again provided with shock absorbing device 7, and one tooth 412 of shift and two teeth 413 of shift on one-stage gear axis 411 are in the first shift connection Axial direction under the drive of part along one-stage gear axis 411 does opposite sliding, and one-stage gear axis 411 can be made to generate axial alter It is dynamic, while the output shaft of motive power motor 1 and one-stage gear axis 411 are cooperatively connected, the output shaft of motive power motor 1 can generate axis To play, the setting of shock absorbing device 7, the absorbable axial impact force being transferred on one-stage gear axis 411, so that one-stage gear axis 411 keep stablizing in the process of running, avoid reducing injury of the axial impact force to bearing.

The present embodiment is further arranged: the deceleration box 3 is sound-absorbing cabinet.By using above-mentioned technical proposal, slow down Cabinet 3 uses sound-absorbing body structure, so that be confined space in deceleration box 3, what internal sending issued in use Noise can be largely absorbed, so that the decibel for the noise that complete machine operation generates controls within the scope of people's acceptable, be prevented Only noise pollution.

The present embodiment is further arranged: 3 side of deceleration box is additionally provided with cooling fan 31, the deceleration box 3 Corresponding 31 side of cooling fan is provided with heat release hole 32.By using above-mentioned technical proposal, 3 side of deceleration box is provided with cooling Fan 31, corresponding 31 side of cooling fan of deceleration box 3 are provided with heat release hole 32, and cooling fan 31 and heat release hole 32 cooperate, can The heat in deceleration box 3 is taken away, cooling effect is reached, avoids temperature rise in deceleration box 3 excessively high.

The present embodiment is further arranged: the output of the corresponding transmission connection axis 441 of the deceleration box 3 is provided with Mounting flange 33, the transmission connection axis 441 are provided with outside framework oil seal 34 with 33 junction of mounting flange.By using above-mentioned skill Art scheme, corresponding transmission connection 441 output of axis of deceleration box 3 are provided with mounting flange 33, and transmission connection axis 441 passes through bone Frame oil sealing 34 is connect with mounting flange 33, and mounting flange 33 is connect with external working machine or executing agency, external working machine and biography Dynamic connecting shaft 441 connects, so that matching revolving speed and transmitting torque between motive power motor 1 and working machine；Outside framework oil seal 34 will subtract The inside of fast cabinet 3 is isolated from the outside, so that the lubricating oil in deceleration box 3 will not be revealed, has also obstructed extraneous dust, miscellaneous Matter enters in deceleration box 3.

Although motive power motor -1 is used more herein, retarder -2, deceleration box -3, cooling fan -31, heat dissipation Hole -32, mounting flange -33, outside framework oil seal -34, one-stage gear group -41, one-stage gear axis -411, tooth -412 of shifting gears, shift Two tooth -413, secondary gear group -42 are driven tooth -421, are driven two tooth -422, tertiary gear group -43, tertiary gear axis - 431, three tooth -432 of shifting gears, four tooth -433 of shifting gears, level Four gear set -44, be sequentially connected axis -441, is driven three tooth -442, transmission Four tooth -443, bearing assembly -5, shift motor -61, rotary shaft -621 of shifting gears, guiding axis -622, the first shift part -631, the second Shift part -632, the first connector -633, the second connector -634, slot -635 of shifting gears, shock absorbing device -7, shell -71, shock-absorbing bullet Spring -72, baffle ring -73, sound-absorbing sponge -74, but it does not exclude the possibility of using other terms.It the use of these terms is only to be It is more convenient to describe and explain the essence of the present embodiment；Being construed as any additional limitation is all and this implementation Example spirit is disagreed.

Claims (9)

1. a kind of speed reducer, including motive power motor and retarder, the motive power motor and retarder are cooperatively connected, described to subtract Fast device include deceleration box, be set to the intracorporal level Four gear drive group of reduction gearbox, bearing assembly and with level Four gear drive The gearshift that group is cooperatively connected, the level Four gear drive group are cooperatively connected by bearing assembly and deceleration box, and described four Grade gear drive group includes one-stage gear group, secondary gear group, tertiary gear group and level Four gear set, the one-stage gear group with The mutual cooperation of secondary gear group is engaged transmission, and the secondary gear group and the mutual cooperation of tertiary gear group are engaged biography Dynamic, the tertiary gear group and the mutual cooperation of level Four gear set are engaged transmission, and the level Four gear set includes that transmission connects Spindle, it is characterised in that: the transmission connection the tip of the axis is provided with the shock-absorbing for absorbing transmission connection axis axial impact force Device, the shock absorbing device include with the matched shell of the transmission connection the tip of the axis, be set to the intracorporal shock-absorbing spring of shell, The shock absorbing device further includes the baffle ring for being sheathed on the transmission connection the tip of the axis, and the shell is sheathed on the transmission connection The tip of the axis, the lateral wall of the baffle ring and the inner sidewall of the shell abut against, and the shock-absorbing spring one end offsets with baffle ring It connects, the inside bottom surface of the other end and the shell abuts against.

2. a kind of speed reducer according to claim 1, it is characterised in that: the shock absorbing device further includes being set in shell Sound-absorbing sponge, the sound-absorbing sponge is filled in the gap of the shock-absorbing spring.

3. a kind of speed reducer according to claim 2, it is characterised in that: the one-stage gear group includes and the motive power The one-stage gear axis of the output axis connection of motor, be set to one tooth of shift connected on one-stage gear axis by gear clutch collar and It shifts gears two teeth, the secondary gear group includes the transmission two with one tooth of transmission of shift one tooth cooperation and with shift two teeth cooperation Tooth, the tertiary gear group include tertiary gear axis, are set to the shift three connected on tertiary gear axis by gear combined cover Tooth and shift four teeth, a transmission tooth and be driven two teeth be set on tertiary gear axis, described four and gear set further include setting It is placed on transmission connection axis and three tooth of transmission of shift three teeth cooperation, four tooth of transmission with shift four teeth cooperation.

4. a kind of speed reducer according to claim 3, it is characterised in that: the gearshift is assembled with level Four gear drive It closes, the gearshift includes being set to deceleration box to correspond to the shift motor of motive power motor side, be set to deceleration box The interior shift assembly with shift motor cooperation, the shift assembly includes being changed by bearing assembly with what deceleration box was cooperatively connected Gear rotary shaft, be set to shift rotary shaft correspond to level Four gear drive group side guiding axis and with rotary shaft and the guiding of shifting gears Axis be cooperatively connected shift connection unit, it is described shift connection unit include be set to shift rotary shaft on first shift part and Second shift part, the first connector being cooperatively connected with the first shift part, the second connector being cooperatively connected with the second shift part, It is arranged in the middle part of first connector and the second connector and does opposite sliding on guiding axis and along the axial direction of guiding axis, First connector is connect with respect to the other end of the first shift part with the gear clutch collar of the one-stage gear group, and described second Connector is connect with respect to the other end of the first shift part with the gear clutch collar of the tertiary gear group.

5. a kind of speed reducer according to claim 4, it is characterised in that: set on the first shift part and the second shift part It is equipped with shift slot, one end of first connector and the corresponding first shift part of the second connector and the second shift part, which is set to, to be changed In retaining groove, first connector drives one tooth of shift and two teeth of shift to do opposite sliding along the axial direction of one-stage gear axis, Second connector drives three teeth of shift and four teeth of shift to do opposite sliding along the axial direction of tertiary gear axis.

6. a kind of speed reducer according to claim 5, it is characterised in that: the one-stage gear axis corresponds to the motive power electricity Output shaft one end of machine is provided with shock absorbing device.

7. a kind of speed reducer according to claim 6, it is characterised in that: the deceleration box is sound-absorbing cabinet.

8. a kind of speed reducer according to claim 7, it is characterised in that: the deceleration box side is additionally provided with cooling wind Fan, the deceleration box correspond to cooling fan side and are provided with heat release hole.

9. a kind of speed reducer according to claim 8, it is characterised in that: the deceleration box corresponds to the transmission connection axis Output be provided with mounting flange, the transmission connection axis and mounting flange junction are provided with outside framework oil seal.