Shaft seat lubricating structure

Abstract

The utility model discloses a shaft seat lubricating structure which comprises a middle plate, a left side plate and a right side plate, the left side plate and the right side plate are installed on the two sides of the middle plate, pin holes for installing a pin shaft are formed in the middle plate, the left side plate and the right side plate, oil storage grooves are formed in the pin holes in the middle plate, the left side plate and the right side plate are chamfered, and the middle plate is provided with the oil storage grooves to form a lubricating oil channel. A hole is formed in the middle plate in the thickness direction and connected to the oil storage tank, and an oil cup is installed at an outlet of a lubricating hole to serve as an oil inlet. The lubricating structure of the shaft seat is formed, so that lubrication is realized; through the shaft seat lubricating structure, hard contact of the pin shaft and the surface structure of the pin hole is converted into relative rotation of an oil film, the lubricating effect can be achieved, the failure rate of abnormal abrasion of the surface of the pin hole caused by hard contact is reduced, working efficiency is guaranteed, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of engineering machinery excavator, concretely relates to a shaft seat lubrication structure. BACKGROUND

[0002] Excavator in actual working condition, the working device is impacted by alternating load, the load is transmitted to the working device and the connecting place of the rotary table, the stress is big, and the excavator is in the working process, the small range sliding friction of the pin hole surface is relatively small, the abnormal wear and crush of the pin hole surface of the shaft seat are occasionally appeared in the market feedback, and the working efficiency of the whole machine is reduced.

[0003] The existing working device and the connecting place of the rotary table pin shaft and the pin hole are directly contacted and not lubricated, the pin shaft and the pin hole surface of the shaft seat are directly contacted and not lubricated, the friction coefficient is very high, the abnormal wear of the pin hole surface, the surface crush and other problems are appeared in the working process, and the working efficiency of the whole machine is affected. UTILITY MODEL CONTENTS

[0004] In view of the problems existing in the prior art, the utility model provides a kind of shaft seat lubrication structure, for the lubrication structure of the shaft seat of excavator working device and rotary table connecting place,

[0005] In order to realize the above-mentioned purpose, the technical scheme adopted by the utility model is: a kind of shaft seat lubrication structure, comprising: middle plate and left side plate and right side plate installed in the two sides of middle plate, pin hole for installing pin shaft is equipped in middle plate, left side plate, right side plate, pin hole on the middle plate is equipped with oil storage groove.

[0006] Further, the oil storage groove includes: upper oil storage groove, lower oil storage groove, and the upper oil storage groove and the lower oil storage groove are symmetrically arranged.

[0007] Further, the upper oil storage groove is arranged at the top of the pin hole of the middle plate, and the lower oil storage groove is arranged at the bottom of the pin hole of the middle plate.

[0008] Further, the middle plate is provided with a lubricating hole, and the lubricating hole is communicated with the oil storage groove.

[0009] Further, the lubricating hole is provided with an oil cup.

[0010] Further, the lubricating hole is communicated with the upper oil storage groove.

[0011] Further, the left side plate pin hole is provided with a chamfer on the side close to the middle plate.

[0012] Further, the right side plate pin hole is provided with a chamfer on the side close to the middle plate.

[0013] Further, the left side plate and the right side plate are welded on the left and right sides of the middle plate.

[0014] The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life.

[0016] Figure 2 The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life. Figure 1 A-A's cross section structure schematic diagram

[0017] Figure 3 The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life. Figure 1 Ⅰ's local enlarged structure schematic diagram

[0018] Figure 4 The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life.

[0019] In the drawing: 1, oil cup;2, middle plate;3, left side plate;4, right side plate;5, lubricating hole;6, chamfer;7, upper oil storage groove;8, lower oil storage groove;9, lubricating oil channel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, below through the drawing and example, to the utility model carries out further detailed description.But should understand, the specific example described here only to explain the utility model, and is not used to limit the scope of the utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terminology used in the specification of the utility model herein is only for the purpose of describing specific examples and is not intended to limit the utility model.

[0022] As Figures 1-3 The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life.

[0023] The utility model discloses a beneficial effect is: chamfering at left side plate, right side plate, and the middle plate opens the oil storage groove and constitutes the lubricating oil channel, and the hole is opened to the middle plate thickness direction, and is connected to the oil storage groove, and the lubricating hole export installs the oil cup as the oil inlet, and the above constitutes the lubricating structure of this axle seat, realizes lubrication, through the axle seat lubricating structure, turns into the relative rotation of oil film with pin hole surface structure hard contact of pin axle, can play the lubricating effect, reduces the pin hole surface abnormal wear failure rate caused by hard contact, guarantees the work efficiency, improves the service life.

[0024] The upper oil reservoir 7 is located at the top of the pin hole in the middle plate 2, and the lower oil reservoir 8 is located at the bottom of the pin hole in the middle plate 2.

[0025] The intermediate plate 2 is provided with a lubrication hole 5, which is connected to the upper oil storage tank 7. The lubrication hole 5 needs to be drilled in the thickness direction of the intermediate plate 2 to connect with the upper oil storage tank 7.

[0026] The lubrication hole 5 is equipped with an oil cup 1, which serves as an oil inlet for oil injection.

[0027] like Figure 4 As shown, before welding the left side plate 3, the right side plate 4, and the middle plate 2, a chamfer 6 needs to be provided on the side of the pin hole of the left side plate 3 near the middle plate 2, and a chamfer 6 needs to be provided on the side of the pin hole of the right side plate 4 near the middle plate 2. The chamfer 6 on the left side plate 3 and the chamfer 6 on the right side plate 4 together with the upper oil reservoir 7 and the lower oil reservoir 8 form a lubricating oil channel 9.

[0028] The intermediate plate 2 in the bearing lubrication structure is set on the turntable of the excavator and is hinged to the working device by a pin. The lubrication oil passage 9 is used to convert the hard contact between the pin and the pin hole surface into relative rotation of the oil film, thereby reducing the failure rate of abnormal wear on the pin hole surface caused by hard contact.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing lubrication structure, characterized in that, include: The middle plate and the left and right plates installed on both sides of the middle plate are provided with pin holes for installing pin shafts, and the pin holes on the middle plate are provided with oil storage grooves. The oil storage tank includes an upper oil storage tank and a lower oil storage tank, which are symmetrically arranged. The upper oil storage tank is located at the top of the pin hole in the middle plate, and the lower oil storage tank is located at the bottom of the pin hole in the middle plate.

2. The bearing lubrication structure according to claim 1, characterized in that, The intermediate plate is provided with lubrication holes, which are connected to the oil storage tank.

3. The bearing lubrication structure according to claim 2, characterized in that, An oil cup is provided in the lubrication hole.

4. The bearing lubrication structure according to claim 2, characterized in that, The lubrication hole is connected to the upper oil reservoir.

5. The bearing lubrication structure according to claim 1, characterized in that, The left side plate pin hole has a chamfer on the side closest to the middle plate.

6. The bearing lubrication structure according to claim 1, characterized in that, The right side plate pin hole has a chamfer on the side closest to the middle plate.

7. The bearing lubrication structure according to claim 1, characterized in that, The left and right side plates are welded to the left and right sides of the middle plate.

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