CN213979094U - Bulldozing plate component - Google Patents

Abstract

The utility model discloses a bulldozing plate component, which comprises a bulldozing plate, side plates and a guide frame positioned on the back of the bulldozing plate, wherein the side plates are fixed on two sides of the bulldozing plate, the guide frame is arranged on the back of the bulldozing plate, and the bulldozing plate component also comprises a roller component, the roller component comprises a side plate roller arranged on the side plate, a bottom roller arranged at the bottom of the bulldozing plate and a guide roller arranged on the guide frame; the guide rollers are arranged on the left side and the right side of the guide frame. Compare with guide roller sets up the rear of leading truck, guide roller sets up the left and right sides of leading truck is difficult for taking place the skew during the atress, and laminating degree is good.

Description

Bulldozing plate component

Technical Field

The utility model relates to a bull-dozer board, concretely relates to bull-dozer board subassembly.

Background

The agricultural scraper belongs to integrated machinery for leveling land and transporting earthwork, and the bulldozing plate component is a main component of the scraper and is used for bringing soil higher than a preset ground level to a low-lying ground; in the prior art, referring to fig. 14, a group of kidney-shaped guide rollers is arranged behind the guide frame, the longitudinal section of the kidney-shaped guide rollers, which plays a role in guiding, on the shaft sleeve is arc-shaped, and the kidney-shaped guide rollers are matched with a seamless circular pipe; the waist-shaped guide roller is arranged behind the guide frame, is stressed, is easy to deflect inwards and is not well attached; the seamless circular tube and the arc curved surface of the waist-shaped guide roller play a role in guiding in a line contact manner, and the guiding effect is poor; so that the phenomenon of jamming caused by left and right deviation is easy to occur in the process of moving the bulldozer forwards and backwards.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model provides a bulldozing plate component which is not easy to cause the jamming of the bulldozing plate and has good fitting degree of the guide idler wheel and the guide pipe; the technical scheme is as follows:

a kind of bulldozing plate assembly, including bulldozing plate, lateral plate, and the guide bracket located in the back of said bulldozing plate, the said lateral plate is fixed on both sides of said bulldozing plate, the said guide bracket is set up in the back of said bulldozing plate, also include the wheel assembly of the roller, the said wheel assembly of the roller includes the lateral plate gyro wheel mounted on said lateral plate, bottom gyro wheel mounted on bottom of said bulldozing plate, and the guide gyro wheel mounted on said guide bracket; the guide rollers are arranged on the left side and the right side of the guide frame.

Guide roller sets up the left and right sides of leading truck specifically can consider: the left side and the right side of the rear part of the guide frame are respectively provided with a guide roller connecting plate which faces to each other, and the guide rollers are respectively arranged on the guide roller connecting plates.

Compare with guide roller sets up the rear of leading truck, guide roller sets up the left and right sides of leading truck is difficult for taking place the skew during the atress, and laminating degree is good.

The bulldozer plate assembly is arranged on the scraper, the side plate rollers act on the scraper side plates, the bottom rollers act on the scraper bottom plate, and the guide rollers are matched with an external guide pipe; the guide roller is used for ensuring that the bulldozer only moves in a linear direction without left-right deviation when the bulldozer moves under the driving of the hydraulic cylinder; the guide rollers ensure that the bulldozer only moves linearly in the front and rear directions; the side plate idler wheels and the bottom idler wheels ensure stable guiding and smooth bulldozing under high load, and prevent the bucket from being twisted.

The guide roller is a sealed maintenance-free triangular guide roller and comprises a shaft, a shaft sleeve and a group of bearings sleeved on the shaft, bearing limiting devices for preventing the bearings from moving axially are arranged at two ends of the bearings, a bearing sealing device is arranged on the outer end face of each bearing, and the longitudinal section of the outline playing a guiding role on the shaft sleeve is provided with an included angle of 60-120 degrees; preferably, the longitudinal section of the profile on the shaft sleeve for guiding is at an included angle of 90 degrees, and the included angle is chamfered with a fillet.

The sealed non-maintaining structure has multiple sealed characteristics, specifically, bearing sealing device includes: the oil seal is positioned between the shaft and the bearing sealing end cover, and the bearing sealing end cover is fixedly connected with the shaft sleeve; a first sealing ring is further arranged between the bearing sealing end cover and the shaft, and a second sealing ring is arranged between the bearing sealing end cover and the shaft sleeve. Along the axial direction, the oil seal is arranged between the bearing sealing end cover and the bearing limiting device; in a radial direction, the oil seal is disposed between the shaft and the bearing seal end cap.

Viewed along the axial direction, an oil seal and a first sealing ring are arranged between the bearing sealing end cover and the shaft; a second sealing ring is arranged between the bearing sealing end cover and the shaft sleeve; and when viewed along the radial direction, a first sealing ring, an oil seal, a bearing sealing end cover and a second sealing ring are arranged between the shaft and the shaft sleeve.

The side plate roller and the bottom roller can also adopt a sealing maintenance-free structure so as to ensure the service life of the rollers.

The side plate rollers, the bottom rollers and the guide rollers all adopt special sealing structures, so that earth, gravel and stones are effectively prevented from entering the rollers, and the service life of the bearing is ensured; meanwhile, the lubricating oil is prevented from leaking, and the service life is prolonged.

The bearing limiting device can be specifically considered as follows: the bearing limiting device comprises a shaft sleeve inner end face for axially limiting the bearing from the inner side of the group of bearings and a bearing outer side limiting part for axially limiting the bearing from the outer side.

The bearing outside limiting part can be selected specifically: the bearing outer side limiting pieces of the group of bearings comprise clamp springs; or the bearing outer side limiting pieces of the group of bearings comprise clamp springs and gaskets, and the gaskets are arranged between the clamp springs and the bearings; or the bearing outer side limiting part of one bearing comprises a clamp spring, and the bearing outer side limiting part of the other bearing comprises a flange arranged on the shaft.

The side plate idler wheels and the guide idler wheels can be fixedly connected with the bulldozing plate component through clamps.

The longitudinal section of the profile playing a guiding role on the shaft sleeve of the triangular guide roller is at an included angle of 60-120 degrees, and angle steel matched with the angle can be selected to realize the guiding role; when the longitudinal section of the profile playing a role in guiding on the shaft sleeve of the triangular guide roller is at an included angle of 90 degrees, the square pipe is selected to be matched to realize the guiding role; compare the line contact between waist shape gyro wheel and the pipe, be surface contact between triangle-shaped guide roller and the square pipe, the atress direction is better.

In the prior art, a bulldozer of the scraper is a straight bulldozer or a bulldozer with only one bent bulldozer, so that resistance is high and oil consumption is increased in the soil shoveling and accumulating processes; and at the in-process of leveling the soil, transporting the earthwork, soil can be turned over bulldozing board leads to the soil to become the unevenness after leveling, can not reach anticipated effect, needs the repetitive operation, the utility model provides a bulldozing board sets up to soil and is difficult for turning over the bending structure of bulldozing board upper end.

The bulldozing plate is of a bent structure and can be formed by bending the bulldozing plate section by section, and reinforcing ribs are arranged on the back of the bulldozing plate section by section.

Bending the bulldozing plate section by section, wherein the upper end of the bulldozing plate is of an arc structure which is bent forwards, and the upper end of the bulldozing plate points forwards and upwards, so that the soil cannot be turned backwards in the processes of leveling the soil and transporting earthwork; in the process of shoveling soil, the soil is continuously squeezed inwards to be pressed against the bulldozing plate, and the bulldozing plate with the lower end in a nearly arc shape can reduce the resistance of soil entering; compare and be the straight plate shape in the lower extreme, when soil was constantly entering, because bulldozing board lower extreme is 90 with the scraper bowl, soil overstock in the below easily leads to into native resistance big, shovel native inefficiency. The resistance in the soil shoveling process is reduced, and the oil consumption is reduced; meanwhile, the land leveling effect is ensured.

In order to increase the strength of the bulldozer, make the bulldozer not easy to deform and prolong the service life, reinforcing ribs are arranged on the back of the bulldozer section by section. Through setting up the strengthening rib, can improve by times the intensity of bull block.

The bottom idler wheel is provided with the mud scraper, so that the self-cleaning effect is realized, and the resistance is small during working.

The bulldozer is easy to wear and deform after the bottom of the bulldozer is used for a long time due to the fact that the plate is thin; in the process of shoveling soil, the soil is easy to deform when encountering hard objects such as stones and the like. The lower end of the bulldozing plate is provided with the high-abrasion-resistance protection block, so that the bulldozing plate can be effectively protected and prevented from deformation; the protection block is detachably connected with the lower end of the bulldozer plate and can be replaced after being worn.

The utility model has the advantages that:

(1) the bulldozer is provided with 3 groups of roller assemblies, so that the bulldozer plate assembly is ensured to move only in a linear direction, and the jamming caused by left and right offset of the bulldozer is avoided;

(2) the roller components are all of sealed maintenance-free structures, so that the service life of the bearing is greatly prolonged;

(3) the soil shoveling method comprises the following steps of bending the soil shoveling plates section by section, wherein the upper ends of the soil shoveling plates are of arc structures bent forwards, and when soil accumulation reaches the upper ends of the soil shoveling plates, the soil accumulation can be turned towards the front ends of the soil shoveling plates, the soil accumulation cannot be accumulated on the soil shoveling plates, and the soil accumulation cannot be turned towards the back sides of the soil shoveling plates, so that the resistance in the soil shoveling process is reduced, and the oil consumption is reduced; the land leveling effect is also ensured;

(4) the strength of the bulldozer can be improved exponentially by arranging the reinforcing ribs;

(5) compared with the guide rollers arranged behind the guide frame, the guide rollers are arranged on the left side and the right side of the guide frame, so that the guide rollers are not easy to deflect when stressed, and the fitting degree is good;

(6) compared with the line contact between the waist-shaped roller and the round tube, the triangular guide roller is in surface contact with the square tube, so that the stress guide is better;

(7) the bottom idler wheel is provided with the mud scraper, so that the self-cleaning effect is realized, and the resistance is small during working.

(8) The high-abrasion-resistance protection block is arranged at the lower end of the bulldozing plate, so that the bulldozing plate can be effectively protected, deformation is prevented, and soil leakage is not easy to occur in the bulldozing process.

Drawings

FIG. 1 is a first schematic structural view of a bulldozing plate assembly according to the present invention;

FIG. 2 is a schematic structural view of a bulldozing plate assembly according to the present invention;

fig. 3 is a schematic structural view three of the bulldozing plate assembly of the present invention;

FIG. 4 is a fourth schematic structural view of a blade assembly according to the present invention;

FIG. 5 is an enlarged schematic view of the manner in which the side plate rollers are connected to the side plates of FIG. 3;

FIG. 6 is an enlarged schematic view of the attachment of the bottom roller to the bottom of the blade of FIG. 3;

FIG. 7 is an enlarged schematic view of the connection of the guide rollers to the guide frame of FIG. 3;

fig. 8 is a first schematic structural view of a guide roller according to the present invention;

fig. 9 is a schematic structural view of a guide roller of the present invention;

FIG. 10 is a schematic view of a cross-sectional view taken along line A-A of FIG. 9;

fig. 11 is a cross-sectional view of a side plate roller according to the present invention;

fig. 12 is a cross-sectional view of a bottom roller according to the present invention;

FIG. 13 is a schematic view of the manner in which the guide rollers engage the guide tube during operation;

fig. 14 is a partial structural view of a kidney-shaped guide roller disposed behind the guide frame in the prior art.

In the figure: 1. The shaft, 2, a shaft sleeve, 3, a bearing, 4, a bearing limiting device, 400, an inner end surface of the shaft sleeve, 410, a flange, 411, a gasket, 412, a snap spring, 5, a hoop, 6, a bearing sealing device, 600, a bearing sealing end cover, 610, an oil seal, 620, a dustproof sealing ring, 630, an O-shaped sealing ring, 7, a bulldozer blade, 8, a side plate, 9, a roller component, 900, a side plate roller, 910, a guide roller, 920, a bottom roller, 10, a guide frame, 11, a reinforcing rib, 12, a guide roller connecting plate, 13, a reinforcing fixing plate, 14, a bottom roller fixing plate, 15, a mud scraper, 16, a protective block, 17, a square tube, 18 and a contact surface.

Detailed Description

The present invention is further explained with reference to fig. 1 to 13, and with reference to fig. 1 and 2, a blade assembly includes a blade 7, a side plate 8, and a guide frame 10 located on the back of the blade, the side plate 8 is fixed on both sides of the blade 7, the guide frame 10 is disposed on the back of the blade 7, and further includes a roller assembly 9, the roller assembly 9 includes a side plate roller 900 mounted on the side plate 8, a bottom roller 920 mounted at the bottom of the blade, and a guide roller 910 mounted on the guide frame 10; wherein, the front and the back ends of the side plate 8 are provided with side plate rollers 900.

Referring to fig. 3 and 7, the guide rollers 910 are disposed on the left and right sides of the guide frame 10, guide roller connection plates 12 are respectively disposed at the left and right ends of the rear of the guide frame, the guide roller connection plates 12 are disposed face to face, a notch for the guide rollers 910 to pass through is disposed on the guide roller connection plate 12, the guide rollers 910 are fixed to the outer sides of the guide roller connection plates 12 through a hoop 5, and when the guide rollers 910 are squeezed by a guide tube, the guide roller connection plates 12 support the guide rollers 910, so that the guide rollers 910 are not easily deflected inward due to the opposite directions of the support and the squeezing. In order to further strengthen and fix the guide frame connecting plates 12, the upper ends and the lower ends of the group of guide frame connecting plates 12 are respectively provided with a strengthening and fixing plate 13.

Referring to fig. 4, the lower end of the blade 7 is provided with a replaceable guard block 16, and the guard block 16 is detachably connected with the lower end of the blade 7, for example, by a countersunk screw; the protection block is made of high-wear-resistant plates.

Referring to fig. 3 and 4, the blade 7 is provided in a curved configuration, which may be formed by bending the blade section by section; in order to increase the strength of the blade, the rear face of the blade 7 is provided with reinforcing ribs 11 section by section.

As shown in fig. 4, after the bulldozer blade is bent, the bulldozer blade is approximately arc-shaped as a whole, and the upper end of the bulldozer blade points forwards and upwards, so that soil cannot be turned backwards in the processes of land leveling and earthwork transportation; and the soil can not be accumulated on the upper end of the bulldozer, thereby reducing the resistance. The bulldozer blade is bent several times, the bending degree of each section and the width of each section can be comprehensively considered, and the bulldozer blade needs to ensure that soil cannot be turned backwards and accumulated at the upper end of the bulldozer blade.

Referring to fig. 3 and 5, the side plate roller 900 is fixedly connected with the side plate through a hoop 5, the hoop 5 is fixed to two sides of a shaft of the side plate roller 900, a bolt is used for fixedly connecting the hoop with the side plate, a hole for the side plate roller 900 to pass through is formed in the side plate 8, and the side plate roller 900 passes through the hole in the side plate 8 and acts on the side plate of the scraper.

Referring to fig. 2, 3 and 6, the bottom roller is connected to the blade in the following manner: the bottom of the bulldozing plate is provided with a pair of fixing plates used for being connected with the bottom roller, the fixing plates are provided with holes for the shaft of the bottom roller to pass through, and the shaft of the bottom roller is connected with the fixing plates through bolts. In this embodiment, as shown in fig. 6, a mud scraper 15 is further disposed on the bottom roller, the mud scraper can swing up and down, and if the viscosity of the mud on the bottom roller is too large, a counterweight can be additionally mounted on a hole of the mud scraper; the scraper may also be arranged to be stationary.

The side plate rollers 900, the bottom rollers 920, and the guide rollers 910 are all sealed maintenance-free rollers.

With reference to FIGS. 8 to 12Explaining the structure of sealed non-maintaining gyro wheel to guide roll wheel explains as an example, as shown in fig. 8~ 10, a sealed non-maintaining triangle-shaped guide roll wheel, including axle 1, axle sleeve 2 and cup joint epaxial a set of bearing 3, 3 both ends of bearing are equipped with and prevent axial displacement's bearing stop device 4 is made to the bearing, 1 both ends of axle are equipped with and are used for with the gyro wheel carries out the axle fastener who fixes, the outer terminal surface of bearing is equipped with bearing sealing device 6, the longitudinal section of the profile that plays the guide effect on the axle sleeve 2 is 90 contained angles, contained angle department has the fillet.

Referring to fig. 10, the bearing seal device 6 includes: the bearing sealing end cover 600 is connected with the shaft sleeve 2 through a countersunk head screw; a dustproof sealing ring 620 is further arranged between the bearing sealing end cover 600 and the shaft 1; an O-shaped sealing ring 630 is arranged between the bearing sealing end cover 600 and the shaft sleeve 2; the bearing of the guide roller is free of maintenance throughout the life through multiple sealing of an oil seal, a sealing ring (comprising a dustproof sealing ring and an O-shaped sealing ring) and a bearing sealing end cover.

Referring to fig. 10, the bearing stopper 4 includes: a shaft sleeve inner end surface 400 for axially limiting the bearing 3 from the inner side of the group of bearings, and a bearing outer side limiting member for axially limiting the bearing from the outer side; in this embodiment, the bearing outer-side limiting member specifically includes: the bearing outer side limiting part of one bearing comprises a clamp spring 412 and a gasket 411, the gasket 411 is arranged between the clamp spring 412 and the bearing 3, and the clamp spring 412 axially limits the bearing 3 by pressing the gasket 411 to prevent the bearing 3 from axially moving; the bearing outer limit stop of the other bearing comprises a flange 410 provided on the shaft 1.

The bearing stop device 4 may also consider the following embodiments: the limiting parts at the outer sides of the bearings of the 2 bearings comprise clamp springs, and the clamp springs tightly press the bearings to prevent the bearings from moving axially; or the bearing outside locating parts of the 2 bearings all comprise clamp springs and gaskets, the gaskets are arranged between the clamp springs and the bearings, and the clamp springs are used for axially limiting the bearings by tightly pressing the gaskets.

Referring to fig. 10, the guide rollers are fixed at both ends of the shaft 1 by clips 5, but other fixing methods are also contemplated.

The bearing 3 is a double-row deep groove ball bearing or a double-row angular contact ball bearing.

Referring to fig. 11 and 12, the side plate roller and the bottom roller may employ the same bearing sealing means, bearing restricting means, and shaft fastening means as the guide roller as described in fig. 10.

Fig. 13 is only used for understanding the way of the triangular guide roller 910 is engaged with the square pipe 17, and the guide roller 910 is engaged with the square pipe 17 through the contact surface 18.

Fig. 14 shows that a group of waist-shaped guide rollers are arranged behind the guide frame, the longitudinal sections of the waist-shaped guide rollers, which play a role in guiding, on the shaft sleeves are arc-shaped, and the waist-shaped guide rollers are matched with seamless round pipes. The waist-shaped guide roller is arranged behind the guide frame, is stressed, is easy to deflect inwards and is not well attached; the seamless circular tube and the arc curved surface of the waist-shaped guide roller have a guide effect in a line contact mode, and the guide effect is poor.

Example 2

In contrast to exemplary embodiment 1, the longitudinal section of the guiding contour on the sleeve 2 of the triangular guide roller is at an angle of 60 °.

Example 3

Different from the embodiment 1, the longitudinal section of the profile which plays a role of guiding on the shaft sleeve 2 of the triangular guide roller is at an included angle of 60 degrees, and the included angle is chamfered with a fillet.

Example 4

In contrast to exemplary embodiment 1, the longitudinal section of the guiding contour on the sleeve 2 of the triangular guide roller is angled by 120 °.

Example 5

Different from the embodiment 1, the longitudinal section of the profile which plays a role of guiding on the shaft sleeve 2 of the triangular guide roller is in an included angle of 120 degrees, and the included angle is chamfered with a fillet.

Example 6

In contrast to example 1, the longitudinal section of the guiding contour on the sleeve 2 of the triangular guide roller is at an angle of 90 °.

The working process is as follows: and an oil cylinder is also arranged along the direction of the guide frame, and the guide roller is guided by the guide pipe under the driving of the oil cylinder, so that the bulldozing plate component only moves back and forth in the linear direction.

Claims (10)

1. The utility model provides a bulldozing plate subassembly, includes bulldozing plate, curb plate to and be located the leading truck at the bulldozing plate back, the curb plate is fixed in the bulldozing plate both sides, the leading truck is arranged in the bulldozing plate back, its characterized in that: the bulldozer further comprises a roller assembly, wherein the roller assembly comprises a side plate roller arranged on the side plate, a bottom roller arranged at the bottom of the bulldozer plate and a guide roller arranged on the guide frame; the guide rollers are arranged on the left side and the right side of the guide frame.

2. A dozer plate assembly as claimed in claim 1 wherein: the guide roller is a sealed maintenance-free triangular guide roller, and comprises a shaft, a shaft sleeve and a group of bearings sleeved on the shaft, the two ends of each bearing are provided with bearing limiting devices for preventing the bearings from moving axially, the outer end faces of the bearings are provided with bearing sealing devices, and the longitudinal section of the outline playing a guiding role on the shaft sleeve is provided with an included angle of 60-120 degrees.

3. A dozer plate assembly as claimed in claim 2 wherein: the longitudinal section of the profile playing a role in guiding on the shaft sleeve is an included angle of 90 degrees, and a fillet is chamfered at the included angle.

4. A dozer plate assembly as claimed in claim 2 wherein: the bearing sealing device includes: the oil seal is positioned between the shaft and the bearing sealing end cover, and the bearing sealing end cover is fixedly connected with the shaft sleeve; a first sealing ring is further arranged between the bearing sealing end cover and the shaft, and a second sealing ring is arranged between the bearing sealing end cover and the shaft sleeve.

5. A dozer plate assembly as claimed in claim 4 wherein: along the axial direction, the oil seal is arranged between the bearing sealing end cover and the bearing limiting device; in a radial direction, the oil seal is disposed between the shaft and the bearing seal end cap.

6. A dozer plate assembly as claimed in claim 5 wherein: the bearing stop device includes: the bearing outer side limiting part is used for axially limiting the bearing from the outer side; the bearing outer side limiting pieces of the group of bearings comprise clamp springs; or the bearing outer side limiting pieces of the group of bearings comprise clamp springs and gaskets, and the gaskets are arranged between the clamp springs and the bearings; or the bearing outer side limiting part of one bearing comprises a clamp spring, and the bearing outer side limiting part of the other bearing comprises a flange arranged on the shaft.

7. A dozer plate assembly as claimed in claim 1 wherein: and a mud scraper is arranged on the bottom roller.

8. A dozer plate assembly as claimed in claim 1 wherein: the side plate roller and the bottom roller are sealed maintenance-free rollers.

9. A dozer plate assembly as claimed in claim 1 wherein: the bulldozer is a curved structure in which soil is not easy to turn over the upper end of the bulldozer.

10. A dozer plate assembly as claimed in claim 1 wherein: the lower end of the bulldozer is provided with a replaceable guard block.

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