CN214945779U - LEG type crawler shoe holds in palm tile - Google Patents
LEG type crawler shoe holds in palm tile Download PDFInfo
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- CN214945779U CN214945779U CN202120869479.8U CN202120869479U CN214945779U CN 214945779 U CN214945779 U CN 214945779U CN 202120869479 U CN202120869479 U CN 202120869479U CN 214945779 U CN214945779 U CN 214945779U
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Abstract
The utility model discloses a LEG type crawler shoe holds in palm tile, concretely relates to crawler shoe holds in palm tile technical field, its technical scheme is: the bearing comprises a slide shoe support tile, wherein the slide shoe support tile consists of a tin-based Babbitt alloy layer and a bearing substrate, the tin-based Babbitt alloy layer is cladded on the bearing substrate through arc deposition, and the thickness of the tin-based Babbitt alloy layer is set to be 3-4 mm; the inner wall of the top end of the bearing base body is provided with a sliding shoe supporting tile inner hole; bearing base member middle part top inner wall is equipped with high-pressure oil jack-up oil pocket, the beneficial effects of the utility model are that: the traditional centrifugal casting bonding strength is about 35Mpa, the thin alloy layer reduces the deformation amount under load, has higher strength, the alloy hardness after welding is higher, has higher wear resistance, reduces the power loss, designs the runner oil supply of the direct lubrication oil inlet, avoids the insufficient lubrication oil inlet, promotes the cold oil lubrication efficiency, promotes the lubrication performance of the slipper supporting tile, and reduces the temperature rise.
Description
Technical Field
The utility model relates to a crawler shoe holds in the palm the tile field, concretely relates to LEG type crawler shoe holds in palm tile.
Background
The ball mill is a key device for crushing materials after the materials are crushed, the slipper supporting tile is an indispensable mechanical part of a crushing and grinding ball mill in mining, building materials, chemical engineering and metallurgical machinery, plays an important supporting role for the whole large-scale ball mill device, is one of the most important stress parts in the whole ball mill, has the performance of the slipper supporting tile, directly influences the service life and the operation efficiency of the ball mill, and further influences the operation safety of the whole machine, and adopts a direct lubrication technology LEG (Leg).
The prior art has the following defects: the prior art comprises the following steps: 1. the slide shoe supporting tile is mainly made of lead-based Babbitt metal, the thickness of which is more than 8-10mm, and is compounded on a cast steel substrate, and belongs to a bimetallic sliding bearing, and because the slide shoe supporting tile has an irregular appearance structure and a larger body, and the compounding of Babbitt metal is the most traditional gravity casting mode, the combination of the alloy and the substrate is not ideal;
2. in field installation, the matching contact surface and the matching side gap between the sliding track support tile and the sliding track in the traditional structure type are always scraped by manpower which is time-consuming, labor-consuming and repeated, and the whole installation process is complicated, and the installation difficulty and the installation cost are high;
3. when the product is used, the traditional support tile is provided with an external oil spraying or oil ring for supplementing lubricating oil, so that the lubricating performance is poor, and the problem of high temperature rise is often caused if the scraping quality of the product is poor.
Therefore, the invention of an LEG-type shoe carrier shoe is necessary.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an LEG type crawler shoe holds in palm tile, through with the product trade tin-based bus and the alloy that the performance is better, the new technology adopts the arc deposition technology, with the alloy cladding on the steel surface of welding wire state, in order to promote the combination between alloy and the steel matrix, reduce the alloy-layer, in order to reduce the deformation of alloy after the load-carrying in order to promote the bearing capacity and the intensity of holding in the palm tile;
then, designing an elliptical tile bearing line type for improving the lubricating performance by calculating a new structure of the product based on fluid lubrication, enhancing the hydrodynamic lubrication effect, and simultaneously ensuring the contact surface and the mounting side clearance of the sliding shoe support tile and the sliding shoe belt by means of design and processing by means of machining precision;
finally, by adding a direct lubrication flow passage design in a new structure, the high-pressure oil way lifts the shaft by means of high-pressure oil before the whole machine runs to avoid scraping bearing alloy due to inertia boundary lubrication when the rotating speed is too low in the early stage of starting, the high-pressure oil way is closed after the whole machine is started and runs in a balanced mode, the low-pressure oil way supplies oil forcibly, and a high-efficiency lubrication state is always realized, so that the problems that the combination of the alloy and a base body is not ideal, the whole installation process is complicated, the installation difficulty and the installation cost are high, and the lubrication performance is poor are solved.
In order to achieve the above object, the present invention provides the following technical solutions: an LEG type slide shoe support tile comprises a slide shoe support tile, wherein the slide shoe support tile is composed of a tin-based Babbitt alloy layer and a bearing substrate, the tin-based Babbitt alloy layer is cladded on the bearing substrate through arc deposition, and the thickness of the tin-based Babbitt alloy layer is set to be 3-4 mm;
the inner wall of the top end of the bearing base body is provided with a sliding shoe supporting tile inner hole;
the inner wall of the top end of the middle part of the bearing base body is provided with a high-pressure oil jacking oil cavity, the top end of the middle part of the bearing base body is provided with a high-pressure oil connector, one end of the inner wall of the bearing base body is provided with a high-pressure oil flow passage, the high-pressure oil jacking oil cavity is communicated with the high-pressure oil connector, and the high-pressure oil jacking oil cavity is communicated with the high-pressure oil flow passage;
the bearing base member inner wall one end has been seted up low pressure oil interface, bearing base member inner wall one end has been seted up low pressure oil runner, bearing base member inner wall one end has been seted up the oil groove, low pressure oil interface with the low pressure oil runner link up, the low pressure oil runner with the oil groove link up.
Preferably, an oil inlet wedge is arranged on the inner wall of the top end of the right side of the bearing base body.
Preferably, the slipper supporting tile adopts an oval tile structure.
Preferably, the center of the inner hole of the sliding shoe support tile is offset from the center of the sliding shoe belt, and the size of the inner hole of the sliding shoe support tile meets the requirement of level precision.
Preferably, the size of the inner hole of the slipper supporting tile is determined by machining.
Preferably, the fit clearance between the inner hole of the sliding shoe support tile and the main machine sliding shoe shaft is set to be 1.5-3 per mill.
Preferably, the surface of the inner hole of the sliding shoe support tile is required to be more than 0.8 μm through machining roughness.
Preferably, the bearing base body is made of cast steel.
The utility model has the advantages that:
1. the traditional gravity casting alloy process is changed into a robot welding device, the arc deposition process is used for cladding the alloy, the alloy has better bonding performance with a steel substrate, the bonding strength can reach 75Mpa, the traditional centrifugal casting bonding strength is about 35Mpa, the load deformation is reduced by a thinner alloy layer, the alloy has higher strength, the alloy has higher hardness after welding, higher wear resistance and reduced power loss;
2. the large-clearance fit is adopted between the slipper support tile and the slipper shaft, the support tile adopts the structural style of an oval tile, the center of an inner hole of the slipper support tile is offset from the center of the slipper belt, the contact surface, the contact angle and the fit side clearance of the slipper support tile and the slipper shaft are ensured in the form of designed lines and machining, manual scraping can be directly replaced, the assembly period and the installation cost are reduced, and the designed lines of the oval tile inner hole greatly improve the dynamic pressure lubrication effect;
3. a high-pressure and low-pressure oil circuit structure is designed, a high-pressure oil jacking structure is designed, a shaft is lifted before starting to avoid inert lubrication and scratching alloy in the starting process, a flow channel for directly lubricating oil inlet is designed to supply oil, the shortage of lubricating oil inlet is avoided, the cold oil lubricating efficiency is improved, the lubricating performance of a sliding shoe supporting tile is improved, and the temperature rise is reduced.
Drawings
Fig. 1 is a schematic front view of the structure provided by the present invention;
fig. 2 is a schematic top view of the structure provided by the present invention;
fig. 3 is a schematic front view of a low pressure oil interface structure provided by the present invention;
fig. 4 is a schematic front view of the oil inlet wedge structure provided by the present invention;
fig. 5 is a schematic bottom view of the three-dimensional structure provided by the present invention;
fig. 6 is a schematic front view of the three-dimensional structure provided by the present invention.
In the figure: the bearing comprises a tin-based Babbitt alloy layer 1, a bearing base body 2, a slipper supporting tile inner hole 3, a high-pressure oil jacking oil cavity 4, a high-pressure oil joint 5, a high-pressure oil flow passage 6, a low-pressure oil interface 7, an oil inlet wedge 8 and a slipper supporting tile 10.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-6, the present invention provides an LEG-type shoe support tile, which includes a shoe support tile 10;
further, the slide shoe carrier tile 10 is composed of a tin-based babbitt metal layer 1 and a bearing base body 2, wherein the tin-based babbitt metal layer 1 is fused on the bearing base body 2 through arc deposition, the thickness of the tin-based babbitt metal layer 1 is set to be 3-4mm, and particularly, the thickness of the tin-based babbitt metal layer 1 is preferably 3.5 mm.
Furthermore, the inner wall of the top end of the bearing base body 2 is provided with a slipper supporting tile inner hole 3.
Further, bearing base member 2 middle part top inner wall is equipped with high-pressure oil jack-up oil pocket 4, bearing base member 2 middle part top has seted up high-pressure oil joint 5, high-pressure oil runner 6 has been seted up to bearing base member 2 inner wall one end, high-pressure oil jack-up oil pocket 4 with high-pressure oil joint 5 link up, high-pressure oil jack-up oil pocket 4 with high-pressure oil runner 6 link up, and is concrete, and high-pressure oil passes through outside high-pressure oil pump fuel feeding, and high-pressure oil has the effect that forms static pressure oil film jack-up axle in high-pressure oil jack-up oil pocket 4.
Further, a low-pressure oil interface 7 is arranged at one end of the inner wall of the bearing base body 2, a low-pressure oil flow passage is arranged at one end of the inner wall of the bearing base body 2, an oil groove is arranged at one end of the inner wall of the bearing base body 2, the low-pressure oil interface 7 is communicated with the low-pressure oil flow passage, and the low-pressure oil flow passage is communicated with the oil groove.
Further, an oil inlet wedge 8 is arranged on the inner wall of the top end of the right side of the bearing base body 2.
Further, the slipper carrier tile 10 adopts an oval tile structure.
Furthermore, the center of the inner hole 3 of the sliding shoe support tile is offset from the center of the sliding shoe belt, and the size of the inner hole 3 of the sliding shoe support tile meets the 7-level precision requirement.
Further, the size of the inner hole 3 of the shoe carrier is determined by machining, specifically, the machining is short for machining, and refers to a machining process for removing materials by mechanical precision machining.
Further, the fit clearance between the inner hole 3 of the sliding shoe support tile and the main engine sliding shoe shaft is set to be 1.5% -3%, and specifically, the fit clearance between the inner hole 3 of the sliding shoe support tile and the main engine sliding shoe shaft is preferably 2.25% o.
Furthermore, the surface of the inner hole 3 of the slipper supporting tile is required to be more than 0.8 μm through machining roughness.
Further, the bearing base body 2 is made of cast steel, specifically, the cast steel is steel specially used for manufacturing steel castings.
The utility model discloses a use as follows: when the bearing is used, the tin-based Babbitt alloy layer 1 is cladded on the bearing base body 2 through arc deposition, the thickness of the tin-based Babbitt alloy layer 1 is set to be 3-4mm, then the size of the inner hole 3 of the slide shoe support tile is determined through machining, the fit clearance between the inner hole 3 of the slide shoe support tile and a main machine slide shoe shaft is set to be 1.5-3 thousandth, then the surface of the inner hole 3 of the slide shoe support tile is required to be more than 0.8 mu m through machining, wherein the center of the inner hole 3 of the slide shoe support tile is offset with the center of the slide shoe, the size adopts 7-level precision requirement, after that, a high-pressure oil jacking oil cavity 4, a high-pressure oil joint 5, a high-pressure oil flow passage 6, a low-pressure oil interface 7, an oil inlet wedge 8, a low-pressure oil flow passage (not marked in the figure) and an oil groove (not marked in the figure) are sequentially arranged on the slide shoe support tile 10, and before starting, the high-pressure oil jacking oil cavity 4 is communicated with the high-pressure oil joint 5, and the high-pressure oil is supplied by an external high-pressure oil pump, a static-pressure oil film jacking shaft is formed in a high-pressure oil jacking oil cavity 4, so that the problem that the bearing alloy is scratched due to inertia boundary lubrication when the rotation speed is too low in the early stage of starting is solved, when the whole machine is started and runs in balance, a high-pressure oil path is closed, low-pressure oil enters an oil groove (not marked in the figure) through a low-pressure oil interface 7 and a flow channel (not marked in the figure), an oil inlet wedge 8 is arranged on the surface of a sliding shoe supporting tile to ensure that the oil inlet can smoothly form an optimal dynamic-pressure oil film, the low-pressure oil path is forced to supply oil, a high-efficiency lubrication state is always realized, a cooling water channel is designed, and the circulating water is supplied to reduce the running temperature of the sliding shoe supporting tile 10.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (8)
1. An LEG type slipper holding tile, includes slipper holding tile (10), its characterized in that: the sliding shoe support tile (10) is composed of a tin-based Babbitt alloy layer (1) and a bearing substrate (2), the tin-based Babbitt alloy layer (1) is fused on the bearing substrate (2) through arc deposition, and the thickness of the tin-based Babbitt alloy layer (1) is set to be 3-4 mm;
the inner wall of the top end of the bearing base body (2) is provided with a slipper supporting tile inner hole (3);
the bearing comprises a bearing base body (2), wherein a high-pressure oil jacking oil cavity (4) is formed in the inner wall of the top end of the middle part of the bearing base body (2), a high-pressure oil joint (5) is formed in the top end of the middle part of the bearing base body (2), a high-pressure oil flow passage (6) is formed in one end of the inner wall of the bearing base body (2), the high-pressure oil jacking oil cavity (4) is communicated with the high-pressure oil joint (5), and the high-pressure oil jacking oil cavity (4) is communicated with the high-pressure oil flow passage (6);
low pressure oil interface (7) have been seted up to bearing base member (2) inner wall one end, the low pressure oil runner has been seted up to bearing base member (2) inner wall one end, the oil groove has been seted up to bearing base member (2) inner wall one end, low pressure oil interface (7) with the low pressure oil runner link up, the low pressure oil runner with the oil groove link up.
2. A LEG-type shoe as claimed in claim 1, wherein: an oil inlet wedge (8) is arranged on the inner wall of the top end of the right side of the bearing base body (2).
3. A LEG-type shoe as claimed in claim 1, wherein: the slipper supporting tile (10) adopts an oval tile structure.
4. A LEG-type shoe as claimed in claim 1, wherein: the center of the inner hole (3) of the sliding shoe support tile is offset from the center of the sliding shoe belt, and the size of the inner hole (3) of the sliding shoe support tile meets the 7-level precision requirement.
5. A LEG-type shoe as claimed in claim 1, wherein: the size of the inner hole (3) of the slipper supporting tile is determined by machining.
6. A LEG-type shoe as claimed in claim 1, wherein: the fit clearance between the inner hole (3) of the slipper supporting tile and the main machine slipper shaft is set to be 1.5-3 per mill.
7. A LEG-type shoe as claimed in claim 1, wherein: the surface of the inner hole (3) of the slipper supporting tile is required to be more than 0.8 mu m through machining roughness.
8. A LEG-type shoe as claimed in claim 1, wherein: the bearing matrix (2) is made of cast steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869479.8U CN214945779U (en) | 2021-04-26 | 2021-04-26 | LEG type crawler shoe holds in palm tile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869479.8U CN214945779U (en) | 2021-04-26 | 2021-04-26 | LEG type crawler shoe holds in palm tile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945779U true CN214945779U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120869479.8U Active CN214945779U (en) | 2021-04-26 | 2021-04-26 | LEG type crawler shoe holds in palm tile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945779U (en) |
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2021
- 2021-04-26 CN CN202120869479.8U patent/CN214945779U/en active Active
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