CN209288671U - The oil seal pressing tooling of speed reducer shaft - Google Patents

Abstract

The utility model discloses a kind of oil seal pressing toolings of speed reducer shaft; it is related to oil seal pressing tooling technical field; its key points of the technical solution are that: including protecting housing; protecting housing is cylinder; it protects and is provided with circular trough on the end face of housing one end; protect the internal diameter of housing identical as the diameter of shaft extension of speed reducer; protect the outer diameter of housing identical as the diameter of shaft interconnecting piece of speed reducer; when protective cover valve jacket is in the shaft of speed reducer, protection housing is against in the shaft connection position of speed reducer.Protective cover valve jacket is when in shaft; the peripheral outer wall of the interconnecting piece of shaft and the peripheral outer wall of protection housing link together; it is inserted in oil sealing again; oil sealing can smoothly be moved on interconnecting piece from protection housing and touch shell; oil sealing is squeezed again; oil sealing is pressed into the axis hole of shell, oil sealing sealing is made to live the gap between shell and shaft；In above-mentioned installation process, the installation accuracy of oil sealing is high, and the speed reducer sealing performance for being pressed completion is strong.

Description

The oil seal pressing tooling of speed reducer shaft

Technical field

The utility model relates to oil seal pressing tooling technical field, in particular to a kind of oil seal pressing work of speed reducer shaft Dress.

Background technique

Oil sealing is a kind of sealing element for oil sealing, and shape is mostly annular shape, general to improve leakproofness using interference fit Energy.

A kind of speed reducer, as shown in Figure 1, including the shell 1 for having axis hole 11, turn stretched out from the axis hole 11 of shell 1 Axis 2, shell 1 are equipped with the boss 12 of annular, boss 12 and 11 concentric of axis hole, the axle body of shaft 2 be it is ladder-like, shaft 2 is leaned on One be relatively large in diameter section of nearly shell 1 is interconnecting piece 21, and lesser one section of diameter of the shaft 2 far from shell 1 is extension 22, even The platform formed between socket part 21 and extension 22 by diameter drop is connection position 23.The internal diameter for the oil sealing 3 that need to be pressed, which is less than, to be connected The diameter of socket part 21 and be greater than extension 22 diameter.

During oil sealing 3 are installed, when discovery oil sealing 3 is nested into shaft 2 and moves to interconnecting piece 21 from extension 22, Be easy inclination, cause oil sealing 3 when passing through connection position 23, the side of oil sealing 3 and 23 contact area of connection position is big and the other side with 23 contact area of connection position is small, and needing to squeeze oil sealing 3 at this time makes it be inserted in interconnecting piece 21, oil sealing 3 and 23 contact surface of connection position The big side of product, which is easy to be squeezed, there is turnup, influences leakproofness.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of oil seal pressings of machine shaft Tooling is not influenced when installing oil sealing by connection position, and installation accuracy is high, improves the sealing performance of speed reducer after press fitting.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of speed reducer shaft Oil seal pressing tooling, including protection housing, the protection housing are cylinder, are provided with circle on the end face of described protection housing one end Shape slot, it is described protection housing internal diameter it is identical as the diameter of shaft extension of speed reducer, it is described protection housing outer diameter with subtract The diameter of the shaft interconnecting piece of fast machine is identical, and when protective cover valve jacket is in the shaft of speed reducer, protection housing is against speed reducer Shaft connection position on.

Through the above technical solutions, protective cover valve jacket, when in shaft, shaft extension is in the circular trough of protection housing Interior and come into full contact with circular trough inner wall, the peripheral outer wall of the interconnecting piece of shaft and the peripheral outer wall of protection housing are connected to one It rises, oil-sealing sleeve is on protection housing and mobile to the axis hole direction of shell, due to the diameter and protective cover of shaft interconnecting piece The outer diameter of shell is identical, and oil sealing smoothly can be moved on interconnecting piece and touch shell from protection housing, then squeeze to oil sealing Pressure, oil sealing is pressed into the axis hole of shell, oil sealing sealing is made to live the gap between shell and shaft；In above-mentioned installation process, The installation accuracy of oil sealing is high, and the speed reducer sealing performance for being pressed completion is strong.

Preferably, the one end of the protection housing far from circular trough notch is cambered surface.

Through the above technical solutions, oil sealing initially be inserted in protection housing when, without specially alignment oil sealing inner wall with The position for protecting housing, during being pushed oil sealing to rotor shaft direction with identical thrust, oil sealing can be along cambered surface gradually Self-position is adjusted until parallel with the protection cross section of housing.

It preferably, further include impulse member, described impulse member one end end face is equipped with circular hole, and the diameter of the circular hole is greater than or waits In the diameter of the shaft interconnecting piece of speed reducer, the maximum cross-section area that impulse member has round-meshed end face is greater than oil sealing to be pressed The maximum cross-section area.

Through the above technical solutions, needing will be oily when being on shaft interconnecting piece and contacting with shell wait be pressed oil sealing Envelope is pressed into axis hole, impulse member is covered in shaft, impulse member one end is against oil sealing upper surface, to impulse member far from oil sealing One end applies pressure, and impulse member can transfer the pressure on oil sealing, so that oil sealing is pressed into axis hole, the stress of oil sealing is more equal It is even；The maximum cross-section area of the end face contacted with oil sealing due to impulse member is bigger than the maximum cross-section area of oil sealing, and impulse member exists When oil sealing being overwhelmed axis hole and keeping oil sealing upper surface concordant with the upper surface of boss, impulse member can touch boss to end pair The extruding of oil sealing.

Preferably, the depth of the impulse member circular hole is greater than the length of protection housing.

Through the above technical solutions, protection housing and impulse member are sequentially sleeved in shaft, and when impulse member is pressed oil sealing, impact Part circular hole bottom will not touch the upper surface of protection housing always, so that extruding force will not be caused to shaft, avoid shaft by It presses and damages.

It preferably, further include machine table, the surface that the machine table is used to place workpiece is table top, is set in the machine table There are shock plate, the first cylinder, the shock plate is located at the surface of machine table table top, and first cylinder is connect simultaneously with shock plate Driving shock plate moves up and down along the vertical direction.

It is impacted through the above technical solutions, replacing artificial tap using the mode of cylinder driving shock plate punching press impulse member Part keeps the stamping press to impulse member more stable, while also improving the protection to worker.

Preferably, the machine table further includes positioning plate, and the positioning plate is connected on table top vertically.

Through the above technical solutions, entire workpiece to be processed on being placed on table top and be resisted against positioning plate, to workpiece There is preliminary positioning, when shock plate is pressed workpiece, workpiece is not in excessive movement.

Preferably, the machine table is additionally provided with two clamping pieces, two the second cylinders, and two clamping pieces are oppositely arranged in platform On face, second cylinder is for driving clamping piece opposite close or separate opposite to each other.

Through the above technical solutions, clamping piece is close to each other under the driving of the second cylinder, by piece-holder in centre, into one Step positions workpiece, and workpiece is made to be not easy to move during press fitting.

Preferably, the clamping piece is equipped with elastic cushion far from the side of the second cylinder, and the elastic cushion is contacted with workpiece.

Through the above technical solutions, casing outer shell surfaces be not it is straight, elastic cushion can occur when being expressed to shell Deformation increases the contact area with shell, keeps clamping effect more preferable.

In conclusion the utility model having the beneficial effect that in contrast to the prior art

1. being located in shaft by protective cover valve jacket, it is poor that the diameter of the interconnecting piece and extension of eliminating ladder-like shaft exists Not and to oil pressure press fitting during caused by adversely affect；

2. squeezing using impulse member oil sealing, make oil sealing uniform force and stabilization；

3. utilizing machine table, in press fitting, fixed workpiece, keeps press fitting process more smooth.

Detailed description of the invention

Fig. 1 is the schematic diagram of speed reducer workpiece；

Fig. 2 is the overall schematic of oil seal pressing tooling in embodiment；

Fig. 3 is the partial sectional view of oil seal pressing tooling in embodiment；

Fig. 4 is the enlarged drawing of A in Fig. 3.

Appended drawing reference: 1, shell；11, axis hole；12, boss；2, shaft；21, interconnecting piece；22, extension；23, connection position； 3, oil sealing；4, housing is protected；41, circular trough；5, impulse member；51, circular hole；6, machine table；61, shock plate；62, the first cylinder； 63, positioning plate；64, clamping piece；65, the second cylinder；66, elastic cushion；67, table top.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of oil seal pressing tooling of speed reducer shaft, as shown in Fig. 2, include machine table 6, protect housing 4, impulse member 5, Machine table 6 includes table top 67, and speed reducer to be processed is placed on table top 67,2 end of shaft of speed reducer straight up, machine table 6 are fixed on speed reducer on table top 67, successively protection housing 4, oil sealing to be pressed 3, impulse member 5 are set in shaft 2, by processing Platform 6 provides downward pressure, so that impulse member 5 is pressed down against oil sealing 3, oil sealing 3 is pressed into axis hole 11.

Referring to Fig. 3, Fig. 4, protecting housing 4 is cylinder, protection 4 one end end of housing be it is dome-shaped, protection housing 4 is another End face is held to be equipped with circular trough 41, the depth of circular trough 41 is greater than the length of 2 extension 22 of shaft, the diameter of 41 notch of circular trough Equal to the diameter of 2 extension 22 of shaft, housing 4 is protected to be equipped with the straight of the outer diameter of the end of circular trough 41 and 2 interconnecting piece 21 of shaft Diameter is identical, when end face where circular trough 41 notch of housing 4 being protected to be nested into shaft 2 downward, protect the lower surface of housing 4 with The connection position 23 of shaft 2 comes into full contact with.Impulse member 5 is stair-stepping cylinder, and the diameter of two ends of impulse member 5 is all larger than punching The diameter of the main part of part 5 is hit, 5 one end end face of impulse member is equipped with circular hole 51, and the depth of circular hole 51 is greater than protection housing 4 Entire length, in the present embodiment, the diameter of circular hole 51 is equal to the diameter of 2 interconnecting piece 21 of shaft, and impulse member 5 is provided with the end of circular hole 51 The outer diameter in portion is greater than the maximum gauge of oil sealing 3, and impulse member 5 is equipped with the end of circular hole 51 towards trapping when protecting on housing 4, impacts Oil sealing 3 can be pressed down against until impulse member 5 arrives to 12 upper surface of boss of reducer shell 1 by part 5.

Referring to fig. 2, machine table 6 further includes positioning plate 63, clamping piece 64, shock plate 61, and positioning plate 63 is connected to platform vertically On face 67, there are two clamping pieces 64, and two clamping pieces 64 are located at the two sides of table top 67, and two clamping pieces 64 are connected separately with Second cylinder 65, the second cylinder 65 driving clamping piece 64 move in the horizontal direction, on the opposite side of two clamping pieces 64 respectively Equipped with elastic cushion 66, deformation occurs for meeting when squeezing for elastic cushion 66.Shock plate 61 is located at the top in 67 middle position of table top And it is parallel to table top 67, the top of shock plate 61 is equipped with the first cylinder 62, and the first cylinder 62 drives shock plate 61 along the vertical direction Lifting.

In specific process, speed reducer to be processed is first placed on the table top 67 of machine table 6 by worker, speed reducer Shell 1 arrive on positioning plate 63, start two the second cylinders 65, two the second cylinders 65 respectively drive two 64 phases of clamping piece To movement, the elastic cushion 66 on clamping piece 64 touches reducer shell 1 and deformation occurs at first, is connect with increasing with shell 1 Contacting surface product, reducer shell 1 withstand on 67 middle position of table top by two clamping pieces 64 and will not move easily, then will protect housing 4 It covers in the shaft 2 of speed reducer, makes that housing 4 is protected to cover all the extension 22 of shaft 2, then oil sealing 3 to be pressed is led to Overprotection housing 4 is nested into the extension 22 of shaft 2, and impulse member 5 is then inserted in outside protection housing 4, and impulse member 5 can be along protection The lateral wall of housing 4 moves in the vertical direction, starts the first cylinder 62, and the first cylinder 62 driving shock plate 61 moves down, Shock plate 61 pushes impulse member 5 to move together downwards after touching impulse member 5, and impulse member 5 pushes oil sealing 3 until by oil sealing again 3 are completely forced into axis hole 11, and the boss 12 that impulse member 5 touches shell 1 at this time makes impulse member 5 that can not continue to move down, it The first cylinder 62, the second cylinder 65 are successively closed afterwards, are resetted shock plate 61 and clamping piece 64, are released the limit to speed reducer, Impulse member 5, protection housing 4 are successively removed again, and entire press fitting work just completes.

The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention It encloses, the protection scope of the utility model is determined by the attached claims.

Claims (8)

1. a kind of oil seal pressing tooling of speed reducer shaft, it is characterized in that: including protection housing (4), the protection housing (4) is Cylinder, it is described protection housing (4) one end end face on be provided with circular trough (41), it is described protection housing (4) internal diameter and deceleration The diameter of shaft (2) extension (22) of machine is identical, the outer diameter of protection housing (4) and shaft (2) interconnecting piece of speed reducer (21) diameter is identical, and when protecting housing (4) to cover in the shaft (2) of speed reducer, protection housing (4) is against turning for speed reducer In axis (2) connection position (23).

2. the oil seal pressing tooling of speed reducer shaft according to claim 1, it is characterized in that: the protection housing (4) is remote One end from circular trough (41) notch is cambered surface.

3. the oil seal pressing tooling of speed reducer shaft according to claim 1, it is characterized in that: further including impulse member (5), institute Impulse member (5) one end end face is stated equipped with circular hole (51), the diameter of the circular hole (51) is greater than or equal to the shaft (2) of speed reducer even There is the maximum cross-section area of the end face of circular hole (51) to be greater than oil sealing to be pressed (3) most for the diameter of socket part (21), impulse member (5) Big cross-sectional area.

4. the oil seal pressing tooling of speed reducer shaft according to claim 3, it is characterized in that: the impulse member (5) circular hole (51) depth is greater than the length of protection housing (4).

5. the oil seal pressing tooling of speed reducer shaft according to claim 3, it is characterized in that: further including machine table (6), institute Stating the surface of machine table (6) for placing workpiece is table top (67), and the machine table (6) is equipped with shock plate (61), the first gas Cylinder (62), the shock plate (61) are located at the surface of machine table (6) table top (67), first cylinder (62) and shock plate (61) it connects and shock plate (61) is driven to move up and down along the vertical direction.

6. the oil seal pressing tooling of speed reducer shaft according to claim 5, it is characterized in that: the machine table (6) is also wrapped It includes positioning plate (63), the positioning plate (63) is connected to vertically on table top (67).

7. the oil seal pressing tooling of speed reducer shaft according to claim 5, it is characterized in that: the machine table (6) is also set There are two clamping piece (64), two the second cylinders (65), two clamping pieces (64) are oppositely arranged on table top (67), and described second Cylinder (65) is for driving clamping piece (64) opposite close or separate opposite to each other.

8. the oil seal pressing tooling of speed reducer shaft according to claim 7, it is characterized in that: the clamping piece (64) is separate The side of second cylinder (65) is equipped with elastic cushion (66), and the elastic cushion (66) contacts with workpiece.