CN211765869U - Scraper conveyor middle part hinge structure and scraper conveyor - Google Patents
Scraper conveyor middle part hinge structure and scraper conveyor Download PDFInfo
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- CN211765869U CN211765869U CN202020031399.0U CN202020031399U CN211765869U CN 211765869 U CN211765869 U CN 211765869U CN 202020031399 U CN202020031399 U CN 202020031399U CN 211765869 U CN211765869 U CN 211765869U
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- short shaft
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- steel bushing
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Abstract
The embodiment of the utility model discloses scraper conveyor middle part hinge structure and scraper conveyor, include: the middle hinged short shaft is provided with a large end at one end and a small end at the other end, the large end is connected with the positioning steel sleeve through a long bolt, and the small end is provided with a locking steel sleeve; the positioning steel sleeve is welded on the middle plate of the rear rack; the knuckle bearing is arranged in the middle section of the middle hinged short shaft, the locking steel sleeve is connected with the middle hinged short shaft through one end of a locking bolt, the other end face of the locking steel sleeve compresses the end face of an inner ring of the knuckle bearing, and the lower end face of the locking steel sleeve compresses the end face of an outer ring of the knuckle bearing; and simultaneously, the utility model has the characteristics of overcome the installation problem that arouses because of manufacturing error.
Description
Technical Field
The embodiment of the utility model provides a relate to underground shovel car technical field, concretely relates to shovel car middle part hinge structure and shovel car.
Background
The underground shovel car is an important device in a shovel loading and transporting link in large-scale mine underground mining engineering, and particularly is an indispensable device for material transfer in some goafs and the shovel car. In order to meet the actual use requirements in the underground, the underground shovel car is generally designed into a structure form that the middle parts of a front frame and a rear frame are hinged, so that the middle hinged structure is an important component of the underground shovel car. The middle hinged structure plays a role in physically connecting the front frame and the rear frame and transferring most of steering torque during steering action, and the firmness and firmness of the part of structure play a great role in keeping the overall performance of the underground forklift stable.
The bearing in the middle hinged structure of the traditional design generally adopts a tapered roller bearing to transmit the turning moment, and the clean sealing protection of the bearing generally adopts a method of sealing the end face of an O-shaped sealing ring; secondly, the tapered roller bearing has higher price; thirdly, when the bearing rotates at low speed and heavy load, the cost performance of the tapered roller bearing is not high; and fourthly, the end face of the O-shaped sealing ring is used for sealing, so that the underground scraper conveyor is more easily damaged and not tightly sealed in the use environment, and the service life of the whole structure is influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a scraper conveyor middle part hinge structure and scraper conveyor to solve among the prior art because the bearing among the middle part hinge structure generally adopts tapered roller bearing to transmit the cost height that gyroscopic moment leads to, problem with big costs.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the utility model discloses an aspect provides a scraper conveyor middle part hinge structure and scraper conveyor, include:
the middle hinged short shaft is provided with a large end at one end and a small end at the other end, the large end is connected with the positioning steel sleeve through a long bolt, and the small end is provided with a locking steel sleeve; the positioning steel sleeve is welded on the middle plate of the rear rack;
the knuckle bearing is arranged in the middle section of the middle hinged short shaft, the locking steel sleeve is connected with the middle hinged short shaft through one end of the locking bolt, the other end face of the locking steel sleeve compresses the end face of the inner ring of the knuckle bearing, and the lower end face of the pressing steel sleeve compresses the end face of the outer ring of the knuckle bearing.
Further, still include fixed steel bushing, fixed steel bushing welding is on preceding frame roof, be provided with first oil filler point on the preceding frame roof, fixed steel bushing is provided with the second oil filler point, first oil filler point with the second oil filler point is linked together.
Furthermore, the compression steel sleeve is arranged at the upper part of the fixed steel sleeve and is connected with the fixed steel sleeve through a short bolt.
Furthermore, J-shaped frameless oil seals are arranged inside the fixed steel sleeve and the compression steel sleeve, and the inner surfaces of the J-shaped frameless oil seals are respectively in contact with the middle hinged short shaft and the locking steel sleeve.
The welding steel sleeve is welded on the top plate of the rear frame, and a first round hole in the welding steel sleeve and a second round hole in the positioning steel sleeve are located on the same central axis.
Furthermore, an adjusting spacer is arranged between the welding steel sleeve and the compression steel sleeve.
According to a second aspect of the embodiments of the present invention, there is provided a forklift comprising the above-described forklift middle part hinge structure.
The embodiment of the utility model provides a have following advantage:
the utility model provides a pair of novel scraper conveyor middle part hinge structure replaces the tapered roller bearing among the traditional structure with joint bearing, more is fit for the application occasion of this kind of low-speed heavy load of underground scraper conveyor, and the price/performance ratio is higher, and in the manufacturing process, joint bearing is lower to the machining precision requirement of frame because its unique structure, has reduced the processing cost. The J-shaped frameless oil seal is arranged inside the compression steel sleeve and the fixed steel sleeve to replace the original O-shaped seal rings on the upper end face of the compression steel sleeve and the lower end face of the fixed steel sleeve, so that external dust is isolated from entering the knuckle bearing, and the service life of the knuckle bearing is prolonged. Oil holes are designed at corresponding positions of the middle part of the top plate of the front frame and the middle part of the fixed steel sleeve, and the joint bearing is lubricated by injecting lubricating oil ester, so that the service life of the joint bearing is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic cross-sectional structural view of a middle hinge structure of a forklift truck according to embodiment 1 of the present invention;
in the figure: 1-locking a steel sleeve; 2-welding a steel sleeve; 3-rear frame top plate; 4-front frame top plate; 5-middle plate of back frame; 6-adjusting the spacer; 7-pressing the steel sleeve; 8-fixing a steel sleeve; 9-knuckle bearing; 10-a middle hinged stub shaft; 11-positioning a steel sleeve; 12-hexagon socket head cap screw; 13-locking bolts; 14-J type frameless oil seal; 15-inner hexagonal short bolt.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the utility model provides a middle hinged short shaft 10, one end of the middle hinged short shaft 10 is a big end, the other end of the middle hinged short shaft 10 is a small end, the big end of the middle hinged short shaft 10 is connected with a positioning steel bushing through a hexagon socket head cap stay bolt 12, the small end of the middle hinged short shaft 10 is provided with a locking steel bushing 1; the positioning steel sleeve 11 is welded on the middle plate 5 of the rear frame;
the joint bearing 9 is arranged in the middle section of the middle hinged short shaft 10, one end of the locking steel sleeve 1 is connected with the middle hinged short shaft 10 through a locking bolt 13, the other end face of the locking steel sleeve 1 compresses the end face of the inner ring of the joint bearing 9, and the lower end face of the pressing steel sleeve 7 compresses the end face of the outer ring of the joint bearing 9.
The utility model provides a pair of novel scraper conveyor middle part hinge structure replaces the tapered roller bearing among the traditional structure with joint bearing 9, more is fit for the application occasion of this kind of low-speed heavy load of underground scraper conveyor, and the price/performance ratio is higher, and in the manufacturing process, joint bearing 9 is lower to the machining precision requirement of frame because its unique structure, has reduced the processing cost.
For improving joint bearing 9's life, correspond position design oil filler point in front frame roof 4 middle part and fixed steel bushing 8 middle part, still including fixed steel bushing 8, fixed steel bushing 8 welds on front frame roof 4, is provided with first oil filler point on the front frame roof 4, and fixed steel bushing 8 is provided with the second oil filler point, and first oil filler point links to each other with the second oil filler point and leads to through pouring into lubricated grease, lubricates joint bearing 9.
In order to fix the compression steel sleeve 7, the compression steel sleeve 7 is arranged at the upper part of the fixed steel sleeve 8, and the fixed steel sleeve 8 of the compression steel sleeve 7 is connected with the compression steel sleeve 7 through the hexagon socket head cap short bolt 15.
In order to replace the original O-shaped sealing rings on the upper end surface of the compression steel sleeve 7 and the lower end surface of the fixed steel sleeve 8 and isolate external dust from entering the knuckle bearing 9, the service life of the knuckle bearing 9 is prolonged, J-shaped frameless oil seals 14 are arranged inside the fixed steel sleeve 8 and the compression steel sleeve 7, and the inner surfaces of the J-shaped frameless oil seals 14 are respectively contacted with the middle hinged short shaft 10 and the locking steel sleeve 1.
In order to prevent the dislocation of the middle hinged short shaft 10, the welding steel sleeve 2 is further included, the welding steel sleeve 2 is welded on the top plate 3 of the rear frame, and a first round hole in the welding steel sleeve 2 and a middle second round hole of the positioning steel sleeve 11 are located on the same central axis.
In order to adjust the gap between the welding steel sleeve 2 and the compression steel sleeve 7, an adjusting spacer 6 is arranged between the welding steel sleeve 2 and the compression steel sleeve 7, and the thickness of the adjusting spacer 6 is determined according to the actual gap.
Example 2
The embodiment of the utility model provides a scraper vehicle, scraper vehicle include the scraper vehicle middle part articulated structure of embodiment 1.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A middle hinge structure of a forklift, which is characterized by comprising:
the middle hinge short shaft (10) is provided with a large end at one end of the middle hinge short shaft (10) and a small end at the other end of the middle hinge short shaft (10), the large end of the middle hinge short shaft (10) is connected with the positioning steel sleeve (11) through a long bolt, and the small end of the middle hinge short shaft (10) is provided with a locking steel sleeve (1); the positioning steel sleeve (11) is welded on the middle plate (5) of the rear rack;
the joint bearing (9) is arranged in the middle section of the middle hinged short shaft (10), one end of the locking steel sleeve (1) is connected with the middle hinged short shaft (10) through a locking bolt (13), the other end face of the locking steel sleeve (1) compresses the end face of the inner ring of the joint bearing (9), and the lower end face of the compressing steel sleeve (7) compresses the end face of the outer ring of the joint bearing (9).
2. The middle articulated structure of a forklift truck as claimed in claim 1, further comprising a fixed steel bushing (8), wherein the fixed steel bushing (8) is welded on the front frame top plate (4), the front frame top plate (4) is provided with a first oil injection hole, the fixed steel bushing (8) is provided with a second oil injection hole, and the first oil injection hole is communicated with the second oil injection hole.
3. The middle articulated structure of a forklift according to claim 2, characterized in that the upper part of the fixed steel bushing (8) is provided with the compression steel bushing (7), and the fixed steel bushing (8) is connected with the compression steel bushing (7) by short bolts.
4. The middle articulated structure of a forklift according to claim 3, characterized in that the fixed steel bushing (8) and the compression steel bushing (7) are both internally provided with J-shaped frameless oil seals (14), and the inner surfaces of the J-shaped frameless oil seals (14) are respectively in contact with the middle articulated stub shaft (10) and the locking steel bushing (1).
5. The middle articulated structure of the forklift according to claim 4, further comprising a welding steel sleeve (2), wherein the welding steel sleeve (2) is welded on the top plate (3) of the rear frame, and a first round hole in the welding steel sleeve (2) and a second round hole in the positioning steel sleeve (11) are positioned on the same central axis.
6. A mid-truck articulation according to claim 5, characterized in that an adjustment spacer (6) is provided between the welded steel jacket (2) and the compression steel jacket (7).
7. A forklift, characterized in that it comprises a middle hinge structure of the forklift according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020031399.0U CN211765869U (en) | 2020-01-07 | 2020-01-07 | Scraper conveyor middle part hinge structure and scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020031399.0U CN211765869U (en) | 2020-01-07 | 2020-01-07 | Scraper conveyor middle part hinge structure and scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211765869U true CN211765869U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020031399.0U Active CN211765869U (en) | 2020-01-07 | 2020-01-07 | Scraper conveyor middle part hinge structure and scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211765869U (en) |
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2020
- 2020-01-07 CN CN202020031399.0U patent/CN211765869U/en active Active
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