CN209367388U - A kind of stacker-reclaimer walking idle pulley within the organization - Google Patents

Abstract

The utility model discloses a kind of stacker-reclaimer walking idle pulleys within the organization, belong to mechanical part field.For the low problem of idle pulley serious wear, the service life in the stacker-reclaimer walking mechanism of the prior art, the utility model provides a kind of stacker-reclaimer walking idle pulley within the organization, it includes gears and gears axis, position is provided with stepped hole among the gear, bearing is provided in stepped hole, gear is fixed on spacer by bearing, and spacer is fixed on gear shaft, and the two sides of gear are provided with transparent cover.The utility model is by being changed to intermediate position setting table rank hole for the straight hole of gear internal, step limitation bearing outer ring in stepped hole moves axially, gear is fixed on spacer by bearing, gear and spacer are that rolling friction changes between previous gear shaft and copper sheathing the phenomenon that being sliding friction, the frictional force of rolling friction is much smaller than the frictional force of sliding friction, so that idle pulley internal friction reduces, slow down the abrasion of idle pulley, and service life with higher.

Description

A kind of stacker-reclaimer walking idle pulley within the organization

Technical field

The utility model belongs to mechanical part field, within the organization lazy more specifically to a kind of stacker-reclaimer walking Wheel.

Background technique

Operating mechanism of the cart walking mechanism as stacker-reclaimer is outer confession since stacker-reclaimer is to carry out bulk goods operation Important equipment.It is copper sheathing and gear axis connection inside its idle pulley, idle pulley both ends do not have good sealing device, and idle pulley inside is easily Into dust, lead to the abrasion for accelerating copper sheathing, the position is repaired at least 4 times in 1 year, the high failure rate of walking mechanism, maintenance at This is big, maintenance time is long, delays production.

It is also correspondingly improved regarding to the issue above, it is open such as Chinese Patent Application No. CN201420402477.8 Day is on December 10th, 2014, and which disclose a kind of idle pulley, this kind of idle pulley can reduce amplitude of fluctuation of the belt on idle pulley Degree, to eliminate the noise generated by the friction of belt and associated components.The idle pulley of the utility model includes belt pulley, bearing base Seat, inside race, outer race, steel ball, bolt, gasket and dustproof cover, the inside race and bearing base interference are pressed, the belt Wheel is pressed with outer race interference, and the steel ball is located between inside race and outer race, and the two sides of the belt pulley are equipped with rib； The center of the bearing base is equipped with through-hole, and bearing base is equipped with the toroidal cavity of a side opening on the periphery of through-hole；It is described anti- Dirt lid is placed in the side of bearing base, and the diameter of dustproof cover is greater than the diameter of toroidal cavity；The bolt is by dustproof cover side The through-hole of dustproof cover and bearing base is sequentially passed through, the gasket is stuck on the body of bolt of the bolt far from dustproof cover side, thus Dustproof cover is fixed in the side of bearing base.The patent is disadvantageous in that: the bearing can move axially To influence the use of the idle pulley, and structure is complicated, and installation and maintenance are cumbersome.

Summary of the invention

1, it to solve the problems, such as

For the low problem of idle pulley serious wear, the service life in the stacker-reclaimer walking mechanism of the prior art, this reality A kind of stacker-reclaimer walking idle pulley within the organization is provided with novel.Gear is fixed on spacer by bearing belongs to rolling friction, The phenomenon that be between sliding friction, gear and spacer being dry friction is changed between previous gear shaft and copper sheathing, gear is reduced Abrasion, and the associated components of gear internal obtain enough lubrications, improve the service life of idle pulley.

2, technical solution

To solve the above problems, the utility model adopts the following technical scheme.

A kind of stacker-reclaimer walking idle pulley within the organization, including gears and gears axis, gear centre position are provided with Stepped hole is provided with bearing in stepped hole, and gear is fixed on spacer by bearing, and spacer is fixed on gear shaft, gear Two sides are provided with transparent cover.Position setting table rank hole changes the shape of previous gear internal straight hole among gear, in stepped hole Bearing is set, so that being rolling friction between gear and spacer, is changed between previous gear and spacer as dry friction, gear shaft The phenomenon that being sliding friction between copper sheathing, reduces the abrasion of gear, do not need to add copper sheathing, reduce entire idle pulley Maintenance cost.

Further, the transparent cover both ends are provided with step, are provided with mounting groove between two steps, in mounting groove It is provided with outside framework oil seal.Outside framework oil seal will need the position lubricated to be isolated with external environment, so that single unit system is with higher Greasy property slows down abrasion.

Further, the outside framework oil seal includes skeleton and the oil seal body that skeleton inner surface is arranged in, the oil seal body Including outer ring and inner ring, U-lag is provided between inner ring and outer ring, the outer surface of the inner ring is provided with self-tightening spring.Self-tightening Spring makes unitized seal have good automatic compensation ability, and sealing performance is preferable.

Further, the inner ring inner wall is provided with sealing screw thread.Sealing further is played to the liquid in oil sealing Effect.

Further, several limited blocks are provided in the mounting groove.The movement for limiting outside framework oil seal, makes it have Good fixation.

Further, the ledge surface is provided with sealing strip.Dust seal, whole sealing performance with higher, Increase the service life of transparent cover.

Further, the bearing is two, is separately mounted to the both ends of stepped hole, the bearing outer ring point of two bearings It is not contacted with the step in two transparent covers.Step in transparent cover is contacted with bearing outer ring, and limitation bearing outer ring moves axially.

Further, ball is provided between the bearing outer ring and bearing inner race of the bearing, the ball is hollow Structure.Mitigate the weight of bearing, reduces cost.

It further, further include fixed station plate, gear shaft is fixed on fixed station plate by fastening bolt.Fixed station plate Support gear shaft, the movement of limiting gear axis.

Further, wearing layer is circumferentially provided with along step internal surface of hole.Abrasive resistance is improved, the mill of stepped hole is slowed down Damage, improves its service life.

3, beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model middle gear is fixed on spacer by bearing belongs to rolling friction, changes previous gear shaft It the phenomenon that be between sliding friction, gear and spacer between copper sheathing being dry friction, effectively reduces between the idle pulley component Abrasion, and the step in stepped hole positions bearing outer ring, prevents it from moving；Transparent cover is arranged in gear two sides, plays dustproof storage The effect of oil, effectively prevents the abrasion of bearing, the service life of single unit system is higher；

(2) both ends of transparent cover are provided with step in the utility model, and step further positions bearing outer ring, limit its hair Raw axial movement, ledge surface is provided with sealing strip, further dust seal, so that the lubricating oil in outside framework oil seal is not susceptible to Leakage；It is provided with mounting groove between two steps, outside framework oil seal is provided in mounting groove, several limits are provided in mounting groove Block limits the movement of outside framework oil seal, improves the service life of outside framework oil seal；

(3) the utility model middle skeleton oil sealing includes skeleton and is placed in intraskeletal annular oil seal, the appearance of oil sealing inner ring Face is provided with self-tightening spring, and self-tightening spring makes entire oil sealing have good automatic compensation ability, so that overall skeleton oil sealing Sealing performance is preferable with wear resistance, ensure that bearing can obtain enough lubrications；

(4) the utility model middle (center) bearing is two, is separately mounted to the both ends of stepped hole, and step and axis in stepped hole Bearing outer-ring contact, limitation bearing outer ring move axially, fixing bearing, and the setting of two bearings is so that the entirely carrying of gear Ability enhancing, effectively reduces coefficient of friction, improves the service life of gear；

(5) ball is provided between the bearing inner race and bearing outer ring of the utility model middle (center) bearing, the ball is hollow Resource has been saved in the setting of structure, hollow structure, is alleviated the weight and thermal capacity of integral bearing, is effectively prevented bearing The phenomenon that " killing ", while cost has been saved for enterprise；It is circumferentially provided with wearing layer in step internal surface of hole, increases stepped hole Abrasive resistance slows down the abrasion between stepped hole and bearing, effectively improves the service life of bearing and stepped hole；

(6) the utility model slows down the abrasion inside idle pulley between associated components, to reduce the event of stacker-reclaimer Barrier rate reduces the damage frequency of idle pulley internal structure, effectively reduces whole under the premise of meeting stacker-reclaimer bulk goods operation The maintenance cost of a structure brings preferable economic benefit for enterprise.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is transparent cover side cross-sectional, view；

Fig. 3 is former idle pulley structural schematic diagram.

Drawing reference numeral explanation:

1, gear shaft；2, fixed station plate；3, spacer；4, gear；5, stepped hole；6, bearing；7, transparent cover；8, outside framework oil seal； 9, copper sheathing.

Specific embodiment

The utility model is further described below with attached drawing combined with specific embodiments below.

Embodiment 1

As shown in Figure 1, a kind of stacker-reclaimer walking idle pulley within the organization, including gear 4 and gear shaft 1, it further include fixing It stands plate 2, gear shaft 1 is fixed on fixed station plate 2 by fastening bolt, supports gear shaft 1, fixed work is played to gear shaft 1 With so that gear shaft 1 is not easy to loosen；The intermediate position of the gear 4 is provided with stepped hole 5, and the stepped hole 5 is with the level Hole, it is preferred that be circumferentially provided with wearing layer along 5 inner surface of stepped hole, the wearing layer is by wear-resistant material aluminum oxide system At coating be uniformly applied to 5 inner surface of stepped hole and be formed by dope layer, increase the abrasive resistance of stepped hole 5, slow down platform Abrasion between rank hole 5 and bearing 6 effectively improves the service life of bearing 6 Yu stepped hole 5；Bearing 6 is provided in stepped hole 5, Step in stepped hole 5 positions bearing outer ring, and limitation bearing outer ring moves axially, so that bearing 6 is preferably fixed； Preferably, the major diameter fit of the aperture of stepped hole 5 and bearing 6 is processed, and facilitates the installation and replacement of bearing 6, improves work effect Rate；Gear 4 is fixed on spacer 3 by bearing 6, and spacer 3 is fixed on gear shaft 1, and the two sides of gear 4 are provided with transparent cover 7.

As shown in figure 3, original-pack idle pulley operation process middle gear 4 is rotating member, spacer 3 is static element, rotating member with it is static Part end face, which directly contacts, causes contact surface dry friction, and wear phenomenon is obvious, damages to part big；Copper sheathing 9 is with gear shaft 1 simultaneously Pair of sliding friction is secondary, and sliding friction effect is inherently inferior to rolling friction, along with 9 inner surface of copper sheathing lubrication does not cause comprehensively Copper sheathing 9 is worn；Gear 4 is remained as rotating member by the idle pulley after improved, and gear 4 is fixed on spacer 3 by bearing 6, every Set 3 is fixed on gear shaft 1, so that spacer 3 and gear shaft 1 are an entirety, belongs to static element；Make in this way rotating member with it is quiet Friction mode between stop member changes into rolling friction, effectively reduces coefficient of friction, slows down the abrasion of gear 4, so that tooth The service life of wheel 4 increases；And 4 both ends of gear are provided with transparent cover 7, dust seal；Whole apparatus structure is simple, without increasing Copper sheathing 9 reduces maintenance load and maintenance cost, and the component inside gear 4 obtains enough lubrications, reduces the mill between component Damage, so that whole service life is higher, it is Reducing Cost in Enterprises.

Embodiment 2

As shown in Fig. 2, substantially with embodiment 1, it is preferred that 7 both ends of transparent cover are provided with step, and the outer diameter of step is pressed It is to be processed according to the major diameter fit of bearing 6 according to 4 diameter of bore of gear, step is contacted with bearing outer ring outside further positioning bearing Circle, limits it and moves axially；It is provided with mounting groove between two steps, outside framework oil seal 8, the peace are provided in mounting groove It is provided with several limited blocks in tankage, limits the movement of outside framework oil seal 8, improves the service life of outside framework oil seal 8；Preferably, The ledge surface is provided with sealing strip, further dust seal, so that the lubricating oil in outside framework oil seal 8 is not susceptible to leak, The service life of single unit system is improved, is enterprise's save the cost；

The outside framework oil seal 8 includes skeleton and is arranged in the oil seal body of skeleton inner surface, the oil seal body include outer ring and Inner ring is provided with U-lag between inner ring and outer ring, skeleton is coated on inside outer ring and U-lag bottom, and opens in inner ring inner wall Equipped with sealing screw thread, sealing screw thread is formed by reflux line and plays the role of sealing lubricating oil, and the screw thread of inner wall to seal It is increased with the contact area of axis, further functions as sealing function；Bearing outer ring is isolated, does not allow oil seepage, ensure that axis 6 wear resistance is held, the service life of bearing 6 is improved；The outer surface of the oil seal body inner ring is provided with self-tightening spring, self-tightening Spring makes entire oil sealing have good automatic compensation ability, so that the sealing performance and wear resistance of overall skeleton oil sealing 8 Preferably, it ensure that bearing 6 can obtain enough lubrications.

Embodiment 3

Substantially with embodiment 1, it is preferred that the bearing 6 is two, is separately mounted to the both ends of stepped hole 5, two bearings 6 bearing outer ring is contacted with the step in two transparent covers 7 respectively, and the step in stepped hole 5 and the step in transparent cover 7 are two-way fixed Position bearing outer ring, limitation bearing outer ring move axially, so that the fixed performance of 6 entirety of bearing is preferable；Two bearings 6 are set The bearing capacity enhancing so that entire gear 4 is set, coefficient of friction is effectively reduced, improves the service life of gear 4；It is preferred that , ball is provided between the bearing outer ring and bearing inner race of the bearing 6, the ball is hollow structure, hollow structure Resource has been saved in setting, alleviates the weight and thermal capacity of integral bearing 6, effectively prevents bearing 6 there is a phenomenon where " killing ", Cost has been saved simultaneously for enterprise；

Example described in the utility model is only that preferred embodiments of the present invention are described, not to this reality It is defined with novel conception and scope, under the premise of not departing from the design concept of the utility model, this field engineering technology people The various changes and improvements that member makes the technical solution of the utility model, should all fall into the protection scope of the utility model.

Claims (10)

1. a kind of stacker-reclaimer walking idle pulley within the organization, including gear (4) and gear shaft (1), it is characterised in that: the gear (4) intermediate position is provided with stepped hole (5), is provided with bearing (6) in stepped hole (5), and gear (4) is fixed on by bearing (6) On spacer (3), spacer (3) is fixed on gear shaft (1), and the two sides of gear (4) are provided with transparent cover (7).

2. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 1, it is characterised in that: the transparent cover (7) Both ends are provided with step, and mounting groove is provided between two steps, and outside framework oil seal (8) are provided in mounting groove.

3. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 2, it is characterised in that: the outside framework oil seal It (8) include skeleton and the oil seal body that skeleton inner surface is set, the oil seal body includes outer ring and inner ring, between inner ring and outer ring It is provided with U-lag, the outer surface of the inner ring is provided with self-tightening spring.

4. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 3, it is characterised in that: the inner ring inner wall It is provided with sealing screw thread.

5. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 2, it is characterised in that: in the mounting groove It is provided with several limited blocks.

6. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 2, it is characterised in that: the ledge surface It is provided with sealing strip.

7. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 1, it is characterised in that: the bearing (6) It is two, is separately mounted to the both ends of stepped hole (5), the bearing outer ring in two bearings (6) is respectively and in two transparent covers (7) Step contact.

8. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 7, it is characterised in that: the bearing (6) Bearing outer ring and bearing inner race between be provided with ball, the ball is hollow structure.

9. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 1, it is characterised in that: further include fixed station Plate (2), gear shaft (1) are fixed on fixed station plate (2) by fastening bolt.

10. a kind of stacker-reclaimer walking idle pulley within the organization according to claim 9, it is characterised in that: along stepped hole (5) Inner surface is circumferentially provided with wearing layer.