CN205533738U - Balanced jib assembly structure of bilateral scissors owner - Google Patents

Abstract

The utility model discloses a balanced jib assembly structure of bilateral scissors owner belongs to mechanical mounting technical field, expanding including jib, bearing, round pin axle and hollow tubulose and overlapping, the tubulose expands to overlap and sets up between bearing and round pin axle for suit round pin axle, run through along the bloated axial direction of overlapping of tubulose and open the opening slotted hole that has an orbit to be the straight line, the cover formation dissection tensioning formula structure that messenger's tubulose is bloated to with round pin axle interference fit, the tubulose expands the cover has offered at least one oil through lieing in its radial orientation for oil groove on the inner wall with bearing assembly position department links to each other, it expands with the tubulose to be equipped with in the round pin axle overlaps the continuous oil circuit passageway of establishing of oil through. But this assembly structure passes through bloated cover off -line processing of tubulose and pre -assembling 's characteristic for the easy dismouting of round pin axle when the jib is changed reaches the purpose of labour saving and time saving and extension spare parts life cycle, thereby has reduced the spare part consumption cost, has guaranteed the production direct motion.

Description

A kind of bilateral scissors main balance suspension rod assembling structure

Technical field

This utility model belongs to mechanical assembly technique field, is specifically related to a kind of bilateral scissors main balance suspension rod assembling structure.

Background technology

In prior art, there is unreasonable situation in finishing area bilateral scissors main balance suspension rod assembly technology structure, main reason is that The oscillating bearing impact load at work that bilateral scissors main balance suspension rod uses is big, insufficient lubrication, and bearing pin is easy to wear, such as Fig. 1 institute Show, two recess of plane formation easy to wear on bearing pin, do not only result in bearing pin and increase with bearing bore diameter gap, in turn result in bearing Fragile, strong influence service life of bearing, also make cannot exit bearing pin smoothly when changing, there is damage bearing Phenomenon.Thus, original-pack distribution structure makes use cycle of bilateral scissors main balance suspension rod short, and mechanical accident is many, and impact produces direct motion, Also add labor intensity and spare parts cost；Simultaneously because operating position is narrow, time-consuming take when changing bilateral scissors main balance suspension rod Power.

Therefore, in order to keeping normal life activities produces direct motion, reduce and stop cutting time of casualty, in the urgent need to changing original suspension rod assembling structure, with really Protect the abrasion of bearing pin, and then effective service life extending oscillating bearing, also make bearing pin have the function of easy assembly or disassembly.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of bilateral scissors main balance suspension rod assembling structure, bilateral not affecting In the case of cutting main balance suspension rod basic function, assembling the change of structure by bearing pin being arranged tubulose expansion set, bearing pin can be promoted Stable operation within the bearing, beneficially pin assembling/disassembling, simultaneously can be provided lubricating oil by external oil pipe for bearing inner wall, thus effectively Extend the service life of bearing, reduce spare parts cost, it is ensured that produce direct motion.

For reaching above-mentioned purpose, this utility model is achieved through the following technical solutions:

A kind of bilateral scissors main balance suspension rod assembling structure that this utility model provides, including suspension rod, bearing and bearing pin, also wraps Including the tubulose expansion set of hollow, described tubulose expansion set is arranged between described bearing and described bearing pin, is used for being set with described pin Axle；Run through along described tubulose expansion set axial direction and have the open slot that a track is straight line, make described tubulose expansion set be formed Subdivision tension type structure, and with described bearing pin interference fit；Described tubulose expansion set offers at least being positioned at its radial direction One oil through, for being connected with the oil groove on the inwall at bearing rigging position；It is provided with swollen with tubulose in described bearing pin The asphalt channel that oil through set by set is connected.

Further, described asphalt channel includes the axial oilhole being located on bearing pin longitudinal center line and is positioned at bearing pin radial direction On radial direction oil hole, an institute axially oilhole one end connects with radial direction oil hole, its other end be positioned on the end face of bearing pin one end and for Connection external oil pipe, described radial direction oil hole is at the opposite side connection oil through being connected with axial oilhole.

Further, described radial direction oil hole is at least provided with one, and radial direction oil hole quantity is one_to_one corresponding with oil through quantity Arrange.

Further, described bearing pin is provided with the recess of indent in the end, one end being connected with external oil pipe, is used for protecting it Set axial oilhole oral area on bearing pin end face.

Further, described bearing pin at its set radial direction oil hole outlet oral area and is positioned at that to be provided with bar shaped on its axial direction recessed Groove, the connection between oil through set by asphalt channel set in guaranteeing bearing pin and tubulose expansion set.

Further, being provided with groove in described bearing pin, described groove is included in and runs through along its axial direction that to have several uniform It is distributed in the straight-line groove of its radial direction；It is filled with elastomer in described straight-line groove.

Further, described groove also includes the circle hole groove being arranged on described straight-line groove near one end, described bearing pin center.

Further, described elastomer is polymer rubber alloy elastic body or metal-rubber elastomer.

Compared with prior art, Advantageous Effects of the present utility model is:

1, this utility model assembling structure is not in the case of affecting bilateral scissors main balance suspension rod basic function, by setting bearing pin Put the change of the assembling structure of tubulose expansion set, bearing pin stable operation within the bearing, beneficially pin assembling/disassembling can be promoted, not only make Operating process is no longer wasted time and energy, improves efficiency of assembling, the service life that the most effective extending shaft holds, reduce spare parts cost, really Keeping normal life activities produces direct motion.

2, this utility model assembling structure is by being provided lubricating oil successively through asphalt channel, the tubulose expansion set of bearing pin by external oil pipe Oil through to the oil groove fuel feeding of bearing, change in prior art and disposably on bearing inner wall, smear profit in advance before assembling bearing pin The way of lubricating oil, so can provide lubricating condition for bearing for a long time, extend the service life of bearing further.

Other advantages of the present utility model, target and feature will be illustrated to a certain extent in the following description, and To a certain extent, will be apparent to those skilled in the art based on to investigating hereafter, or can be from Practice of the present utility model is instructed.Target of the present utility model and other advantages can be realized by description below And acquisition.

Accompanying drawing explanation

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is made Preferred detailed description, wherein:

Fig. 1 is the structural representation in prior art after bearing pin abrasion；

Fig. 2 is the decomposing schematic representation of this utility model suspension rod assembling structure；

Fig. 3 is the axial front view of tubulose expansion set in this utility model suspension rod assembling structure；

Fig. 4 is the A-A sectional view of the tubulose expansion set embodiment one of Fig. 3；

Fig. 5 is the axial front view of bearing pin in this utility model suspension rod assembling structure；

Fig. 6 is the P direction view that bearing pin is D-shaped cross-section of Fig. 5；

Fig. 7 is the B direction view of the tubulose expansion set embodiment two (matching with bearing pin in Fig. 6) of Fig. 3；

Fig. 8 is the side view of another bearing pin in this utility model suspension rod assembling structure；

Fig. 9 is the partial enlarged drawing of Fig. 8；

Reference: 1-bearing pin, 10-asphalt channel, the axial oilhole of 101-, 102-radial direction oil hole, 103-strip groove, 104- Recess, 11-groove, 111-straight-line groove, 112-circle hole groove；2-expansion set, 201-open slot, 202-oil through；3-suspension rod； 4-bearing, 401-oil groove；5-elastomer.

Detailed description of the invention

Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail；Should be appreciated that preferred embodiment Only for explanation this utility model rather than in order to limit protection domain of the present utility model.

Embodiment one:

As shown in Figure 2-5, this utility model provide a kind of bilateral scissors main balance suspension rod assembling structure, including suspension rod 3, Bearing 4 and bearing pin 1, bearing 4 tensioner is in suspension rod 3, and bearing pin 1 is located in bearing 4, for suspension rod 3 with bilateral Cut main balance be connected, also include the tubulose expansion set 2 of hollow, described tubulose expansion set 2 outer wall have with in described bearing 4 The circular cross section that wall is identical, described tubulose expansion set 2 is arranged between described bearing 4 and described bearing pin 1, is used for being set with Described bearing pin 1；Run through along described tubulose expansion set 2 axial direction and have the open slot 201 that a track is straight line, make institute State tubulose expansion set 2 and form subdivision tension type structure, and with described bearing pin 1 interference fit；So do not affecting bilateral scissors master In the case of balance suspension rod basic function, assembling the change of structure by bearing pin being arranged tubulose expansion set, can promote that bearing pin is at axle Stable operation in holding, beneficially pin assembling/disassembling, not only make no longer to waste time and energy in operating process, improves efficiency of assembling, also has Effect extends the service life of bearing, reduces spare parts cost, it is ensured that produce direct motion；

Meanwhile, described tubulose expansion set 2 offers at least one oil through 202 being positioned at its radial direction, for axle The oil groove 401 held on the inwall at 4 rigging positions is connected；It is provided with in described bearing pin 1 and the logical oil set by tubulose expansion set 2 The asphalt channel 10 that hole 202 is connected, described asphalt channel 101 is at the opposite side oral area being connected with described oil through 202 It is circumscribed with external oil pipe (not shown)；Described asphalt channel 10 includes the axial oil being located on bearing pin 1 longitudinal center line Hole 101 and be positioned at bearing pin 1 radial direction oil hole 102 in the radial direction, institute axially oilhole 101 one end and radial direction oil hole 102 Connection, its other end is positioned on the end face of bearing pin 1 one end and for connecting external oil pipe, described radial direction oil hole 102 with axle The opposite side connection oil through 202 being connected to oilhole 101；Described radial direction oil hole 102 is at least provided with one, and footpath It is that one_to_one corresponding is arranged to oilhole 102 quantity and oil through 202 quantity.Set by preferably, on described tubulose expansion set 2 Oil through 202 is two, and arranges this relative to its longitudinal center line, radial direction oil hole 102 set on described bearing pin 1 It it is two, respectively at two set corresponding settings of oil through 202；Two described radial direction oil hole 102 with oil through 202 The opposite side being connected all is connected with axial oilhole 101.This utility model assembling structure is by being provided lubricating oil by external oil pipe Successively through the asphalt channel of bearing pin, the oil through of tubulose expansion set to the oil groove fuel feeding of bearing, change in prior art at assembling bearing pin The most disposable front way of coating lubricating oil on bearing inner wall, so can provide lubricating condition for bearing for a long time, prolong further The service life of long bearing.

In the present embodiment, described bearing pin 1 is provided with the recess 104 of indent in the end, one end being connected with external oil pipe, uses In protecting the axial oilhole 101 set on it oral area on bearing pin 1 end face, to ensure the process in assembly or disassembly The axial oil orifice part position of middle axial end is not damaged by.

In the present embodiment, described bearing pin 1 exports oral area in its set radial direction oil hole 102 and is positioned on its axial direction It is provided with strip groove 103, asphalt channel 10 set in guaranteeing bearing pin 1 and the oil through set by tubulose expansion set 2 Connection between 202, reduces its assembling or the error brought of the accuracy of manufacture, causes the radial direction oil hole 102 cannot be with oil through 202 UNICOM, thus had influence on bearing pin 1 and provide lubricating oil through tubulose expansion set 2 to bearing 4.

In the present embodiment, described tubulose expansion set 2 is provided with rounding off in the both sides in its bearing direction, the most beneficially tubulose Expansion set 2 inserts in bearing 4, and its both sides are equipped with rounding off and make the optional arbitrary insertion of tubulose expansion set 2, certainly In various embodiments, it is also possible to rounding off is set of tubulose expansion set 2, equally reaches above-mentioned purpose.

In the present embodiment, described tubulose expansion set 2 is made up of spring steel material.So, there is some strength and elastic pipe Shape expansion set 2 not only can make bearing pin 1 can open tubulose expansion set 2 smoothly, also can make the tubulose expansion set 2 assembling in bearing 4, Thus do not affect the basic function of bilateral scissors main balance suspension rod.

The concrete operations flow process of this utility model assembling structure is:

If desired, during assembling bearing pin, first new bearing 4 is arranged in suspension rod 3；Then the tubulose prior off-line processed Expansion set 2 is placed in bearing 4, now because not putting bearing pin 1 in tubulose expansion set 2, thus between tubulose expansion set 2 and bearing 4 are Gap coordinates or interference fits so that it can be arranged in bearing 4 smoothly；Then bearing pin 1 is inserted in tubulose expansion set 2, pass through Open slot 201 in the interference fit of bearing pin 1 and tubulose expansion set 2 and tubulose expansion set 2 makes bearing pin 1 can enter pipe smoothly In shape expansion set 2, and implement to expand to tubulose expansion set 2, and then make tubulose expansion set 2 and bearing 4 endoporus interference fit, thus real The bearing pin assembling of existing suspension rod 3, should ensure that at the radial direction oil hole 102 set by bearing pin 1 and the oil through set by tubulose expansion set 2 simultaneously In connected state；Finally connect outside oil circuit at asphalt channel 10 oral area set by bearing pin 1, as dry oil lubrication is oily, for bearing 4 Lubricant effect is provided；

If desired, during dismounting bearing pin, first remove the outside oil circuit pipe arrangement connected on bearing pin 1, then pass through specific purpose tool pair The bearing pin 1 of assembling is implemented to beat just can directly exit in suspension rod, does not now receive wear damage because of bearing pin 1 outer layer, therefore Can separate in tubulose expansion set 2 quickly and easily when exiting, then tubulose expansion set 2 reverts under natural resiliency effect Gap occur between normality, and then tubulose expansion set 2 and bearing 4, no matter whether this tubulose expansion set 2 has abrasion or as Fig. 1 Deeper recess occurs like that, it all can be made very easily to take out from bearing 4, change the bearing in suspension rod 3 the most again 4。

Embodiment two:

As shown in Figure 6,7, the present embodiment is with embodiment one difference: described bearing pin 1 cross section is D-shape configuration, Described tubulose expansion set 2 inwall has the cross section identical with the D-shaped cross-section of described bearing pin 1.So, on the one hand can prevent Shotpin axle 1 rotates relative to tubulose expansion set 2 endoporus, with rubbing between reinforcement tubular expansion set 2 and bearing 4 endoporus after installing Wiping resistance, it is provided that the interference fit between both, the bearing 4 made normal table in suspension rod 3 runs；Another Aspect can be by the convenient tubulose being attached thereto the radial direction oil hole 102 of bearing pin 1 processing of the straightway confined planes of D-shape configuration The quality of fit of the oil through 202 on expansion set 2, it is ensured that both normally connect.

Embodiment three:

As shown in Figure 8,9, the present embodiment part unlike the embodiments above is: be provided with groove 11 in described bearing pin 1, Described groove 11 is included in run through along its axial direction and has several straight-line grooves 111 being uniformly distributed in its radial direction； So by arranging straight-line groove, can be used for processing non-because of formed on this tubulose expansion set endoporus after bearing pin swelling tubulose expansion set Cooperation between circular port, i.e. makes the arcwall face on the pin body top layer being separated out because of these some straight-line grooves can be preferably Close fit is contacted, to reach bearing pin while swelling tubulose expansion set with between tubulose expansion set endoporus, it is ensured that both Between frictional resistance so that it is do not produce radial rotating relative to tubulose expansion set, it is ensured that the radial direction oil hole 102 set by bearing pin Dislocation will not be produced with the oil through 202 set by tubulose expansion set 2, and cause oil circuit different, have influence on the lubrication to bearing Effect；Described groove 11 also includes the circle hole groove 112 being arranged on described straight-line groove 111 near one end, described bearing pin 1 center； So, by arranging circle hole groove, it is possible to be effectively improved the stress distribution after pin body deforms at straight-line groove.

As further improvement of this embodiment, the length of straight-line groove 111 is equal to 0.01～0.1 times of bearing pin radius, and The groove width of straight-line groove 111 equal to 0.01～0.1 times of its length, i.e. by by the length of straight-line groove and groove width according to pin The practical situation of axle is designed as reasonable value, it is possible under conditions of ensureing pin bearing loading capability, make bearing pin have suitable bullet Property deformability, it is possible to be effectively improved the stress distribution of bearing pin transmission stress, improve its life-span.The straight-line groove of the present embodiment Length equal to 0.05 times of bearing pin radius, its groove width is equal to 0.05 times of its length, it is possible to meets and uses requirement.

In the present embodiment, in described straight-line groove 111, it is filled with elastomer 5；Described elastomer is metal-rubber elastomer. Use metal-rubber elastomer, with extreme environment (high temperature, high pressure and high vibration), there is selected metal special Inherent character, has again and is similar to the elasticity that rubber is the same, does not evaporates under spatial environments, does not fear high temperature, is not afraid of space Radiation and particle clash into, and select the different metals can be with corrosion-resistant environment, and without aging possibility.Elastomer also can be adopted It is replaced with existing various metals elastomer and non-metal elastomers material, such as polymer rubber alloy elastic body, no State tired one by one.

The present embodiment by arrange on bearing pin groove and in groove filled elastomer, meeting the same of elastic deformability Time, contact stress can be reduced and improve bearing capacity, effectively preventing " bite " in bearing pin transmission even " stuck " etc. Problem, moreover it is possible in ensureing bearing pin, asphalt channel keeps unimpeded with oil through on tubulose expansion set, it is ensured that the lubrication of bearing, So that bearing pin has the advantages such as highly reliable, long-life, big torque, extend the service life of bearing simultaneously.

Generally speaking, transformed by the tackling key problem of this balance suspension rod main to bilateral scissors assembling structure, through our Daily Round Check, Accident potential was got rid of in the past, can normally work.The performance of the main balance suspension rod of these bilateral scissors is improved raising simultaneously, therefore Barrier significantly reduces, and reduces spare parts consumption cost, meets Production requirement, has reached the purpose of process modification, thus has protected Demonstrate,prove production direct motion.By this technological transformation, significantly also reduce the labor intensity of workman and the maintenance cost of equipment.

Finally illustrating, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although with reference to preferably This utility model has been described in detail by embodiment, it will be understood by those within the art that, can be to this utility model Technical scheme modify or equivalent, without deviating from objective and the scope of the technical program, it all should be contained in this reality In the middle of novel right.

Claims (8)

1. a bilateral scissors main balance suspension rod assembling structure, including suspension rod, bearing and bearing pin, it is characterised in that: also wrap Including the tubulose expansion set of hollow, described tubulose expansion set is arranged between described bearing and described bearing pin, is used for being set with described pin Axle；Run through along described tubulose expansion set axial direction and have the open slot that a track is straight line, make described tubulose expansion set be formed Subdivision tension type structure, and with described bearing pin interference fit；Described tubulose expansion set offers at least being positioned at its radial direction One oil through, for being connected with the oil groove on the inwall at bearing rigging position；It is provided with swollen with tubulose in described bearing pin The asphalt channel that oil through set by set is connected.

Bilateral scissors the most according to claim 1 main balance suspension rod assembling structure, it is characterised in that: described asphalt channel Including the axial oilhole being located on bearing pin longitudinal center line and be positioned at bearing pin radial direction oil hole in the radial direction, described axial oil One end, hole connects with radial direction oil hole, and its other end is positioned on the end face of bearing pin one end and for connecting external oil pipe, described radial direction Oilhole is at the opposite side connection oil through being connected with axial oilhole.

Bilateral scissors the most according to claim 2 main balance suspension rod assembling structure, it is characterised in that: described radial direction oil hole At least provided with one, and radial direction oil hole quantity is that one_to_one corresponding is arranged with oil through quantity.

Bilateral scissors the most according to claim 2 main balance suspension rod assembling structure, it is characterised in that: described bearing pin with The end, one end that external oil pipe is connected is provided with the recess of indent, for protecting axial oilhole set on it in bearing pin one end Oral area on face.

Bilateral scissors the most according to claim 2 main balance suspension rod assembling structure, it is characterised in that: described bearing pin is at it Set radial direction oil hole outlet oral area and be positioned at its axial direction and be provided with strip groove, set in guaranteeing bearing pin The connection between oil through set by asphalt channel and tubulose expansion set.

Bilateral scissors the most according to claim 1 main balance suspension rod assembling structure, it is characterised in that: set in described bearing pin Fluted, described groove is included in run through along its axial direction and has several straight lines being uniformly distributed in its radial direction Groove；It is filled with elastomer in described straight-line groove.

Bilateral scissors the most according to claim 6 main balance suspension rod assembling structure, it is characterised in that: described groove also wraps Include the circle hole groove being arranged on described straight-line groove near one end, described bearing pin center.

Bilateral scissors the most according to claim 6 main balance suspension rod assembling structure, it is characterised in that: described elastomer is Polymer rubber alloy elastic body or metal-rubber elastomer.