CN209924001U - Mining machinery convenient to change wearing and tearing bucket tooth - Google Patents
Mining machinery convenient to change wearing and tearing bucket tooth Download PDFInfo
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- CN209924001U CN209924001U CN201920545542.5U CN201920545542U CN209924001U CN 209924001 U CN209924001 U CN 209924001U CN 201920545542 U CN201920545542 U CN 201920545542U CN 209924001 U CN209924001 U CN 209924001U
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- mounting groove
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- bar
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Abstract
The utility model discloses a mining machine convenient for replacing worn bucket teeth, which comprises an excavator, wherein the excavator comprises a crawler mechanism, a control room, an excavating arm, a bucket body, a mounting bar, bucket teeth, a baffle, a fixing screw and a jacking component, the mounting bar is fixed on a bottom plate, and the mounting bar is provided with a mounting groove; the baffle is fixed on the bucket body through a fixing screw; a strip block matched with the mounting groove is arranged at the tooth root part of the bucket tooth; the jacking assembly comprises a jacking bolt, a guide rod and a spring, the jacking bolt is in threaded connection with the baffle, the rod part of the jacking bolt is located in the mounting groove, a guide hole is formed in the tail end of the rod part of the jacking bolt, one end of the guide rod is inserted into the guide hole, the other end of the guide rod is in contact with the strip block, the spring is sleeved on the guide rod, two ends of the spring are in contact with the jacking bolt and the strip block respectively, and the spring is in a compression state. The utility model discloses the maintenance cost in excavator later stage has been reduced.
Description
Technical Field
The utility model relates to a mining machinery field, concretely relates to mining machinery convenient to change wearing and tearing bucket tooth.
Background
Mining machines are machines that are used directly for operations such as mineral mining and beneficiation, and include mining machines and beneficiation machines. The working principle and structure of the prospecting machine are mostly the same as or similar to those of mining machines used for mining similar minerals, and the prospecting machine also belongs to mining machines in a broad sense. In addition, a large number of cranes, conveyors, ventilators, drainage machines, and the like are used in mining operations.
Bucket machines are one of the most common working devices in mines. Bucket teeth of a bucket on the existing bucket excavator are clamped on one side of a cutting edge of a bottom plate of the bucket in a groove and key matching mode, and the bucket teeth are fixed on the bottom plate through bolts. In the bucket tooth fixing mode, each bucket tooth is fixed through one or more bolts, but the bolts belong to easily loosened connecting pieces in the connecting structure, so that the frequency of maintaining the tightness of the bucket teeth is high, and the maintenance rate of the whole excavator is extremely high; although after the bucket tooth is worn, each bucket tooth can be dismantled by screwing each bolt, and each bolt is screwed in turn, so that time and labor are wasted, and the maintenance operation time of the excavator is prolonged.
Disclosure of Invention
The utility model aims to provide a: the mining machine is convenient to replace worn bucket teeth, and solves the problems that the existing excavator is high in maintenance frequency and long in maintenance operation carrying time. The utility model discloses a mining machinery convenient to change wearing and tearing bucket tooth has changed the fixed knot of bucket tooth and has constructed to make all bucket teeth share same fastening assembly and fix, do benefit to the maintenance in later stage, and because the direction of fastening direction for being on a parallel with the direction of bottom plate blade, thereby can increase the elastic component on the bolt that is used for the fastening, with the increase in the screw thread axial atress of the bolt of fastening state, prevent bolt lax, reduce the maintenance frequency of excavator then, reduce the maintenance cost in excavator later stage.
The utility model adopts the technical scheme as follows:
a mining machine convenient for replacing worn bucket teeth comprises an excavator, wherein the excavator comprises a crawler mechanism, a control chamber fixed on the crawler mechanism, an excavating arm connected with the lower side of the control chamber, and a bucket fixed at the tail end of the excavating arm, the bucket comprises a bucket body and a bucket tooth assembly fixed on a bottom plate of the bucket body, the bucket tooth assembly comprises a mounting bar, a bucket tooth, a baffle plate, a fixing screw and a jacking assembly, the mounting bar is fixed on the bottom plate, the axis of the mounting bar is parallel to the side line of the bottom plate, which is positioned at the feeding end of the bucket body, on the mounting bar, a mounting groove is arranged on one side far away from the bottom plate, the opening size of the mounting groove is smaller than the size of the bottom of the bucket, the axis of the mounting bar is parallel to the axis of the mounting bar, one end of the;
the baffle is fixed on the side plate of the bucket body through a fixing screw, and the baffle covers the open end of the mounting groove;
the bucket teeth are arranged in sequence along the axis of the mounting groove, the tooth roots of the bucket teeth are provided with strip blocks matched with the mounting groove, the shape and the size of the cross section of each strip block are consistent with those of the cross section of the mounting groove, and the length of each strip block in the axial direction of the mounting groove is greater than that of the bucket teeth in the axial direction;
the tight subassembly in top includes tight bolt in top, guide bar and spring, tight bolt in top and baffle threaded connection, and its axis is parallel with the axis of mounting groove, and its pole portion is arranged in the mounting groove, is provided with the guiding hole at tight bolt in top's pole portion end, during the guiding hole was inserted to the one end of guide bar, the other end of guide bar and the tip contact of the nearest piece apart from the mounting groove open end, the spring housing is established on the guide bar, its both ends respectively with the terminal and the piece contact in pole portion of tight bolt in top, and the spring is in compression state.
In the utility model, on the bucket in use, the two ends of the spring are respectively contacted with the rod end of the puller bolt and the bar block, and the spring is in a compression state, so that each bucket tooth is in an axial compression state in the axial direction of the mounting groove and can not slide or shake randomly; the spring that is in compression state has simultaneously increased the thread axial atress of the bolt that is in fastening state, prevents that the bolt from relaxing, then reduces the maintenance frequency of the fastening of bucket tooth, reduces the maintenance cost in scraper bowl mechanism later stage.
When the impaired dipper tooth is changed in the later stage, relax fastening screw earlier, take off the baffle to make the open end of mounting groove expose, take out each dipper tooth in proper order from the open end of mounting groove after that, place the mounting groove with new dipper tooth in proper order from the open end of mounting groove in after, then pass through fastening screw with the baffle and fix on the lateral wall of scraper bowl, and screw up the puller bolt, so that the spring is in compression state.
To sum up, the utility model discloses make all bucket teeth share same fastening components and fix, do benefit to the maintenance in later stage, and because the direction of fastening direction for being on a parallel with the direction of bottom plate blade to can increase the elastic component on the bolt that is used for the fastening, with the thread axial atress of the bolt that the increase is in fastening state, prevent that the bolt is slack, reduce excavator frequency of maintenance then, reduce the maintenance cost in excavator later stage.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
1. the utility model relates to a mining machinery convenient to change wearing and tearing bucket tooth makes all bucket teeth share same fastening assembly and fixes, does benefit to the maintenance in later stage, and because the fastening direction is the direction that is on a parallel with the bottom plate blade, thus can increase the elastic component on the bolt that is used for fastening, in order to increase the screw thread axial atress of the bolt that is in the fastening state, prevent the bolt lax, then reduce the maintenance frequency of the fastening nature of bucket tooth, reduce the maintenance cost in scraper bowl mechanism later stage;
2. the utility model relates to a mining machinery convenient to change wearing and tearing bucket tooth, the setting of cooperation board has increased the contact surface between bucket tooth and the mounting bar to increased the limit structure of bucket tooth, with the cooperation position of having protected between bucket tooth and the mounting bar, prevented that the too big condition of stress appears because of the contact surface undersize.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limitations of the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative work, the proportional relationship of each component in the drawings in this specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, and in the sectional view, because the bucket tooth, the bar block and the mating plate are integrally formed, and therefore are the same section line, the mounting bar and the bottom plate are also integrally formed, wherein:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the bucket construction;
FIG. 3 is a side view of the bucket;
FIG. 4 is a cross-sectional view taken along A-A in FIG. 2;
FIG. 5 is an enlarged view at A in FIG. 4;
FIG. 6 is a schematic view of the tooth configuration;
FIG. 7 is a cross-sectional view of the tooth;
FIG. 8 is a schematic structural view of a mounting bar;
reference numerals in the drawings indicate:
1-a bucket body, 2-a mounting bar, 3-bucket teeth, 4-a baffle, 5-a fixing screw, 6-a mounting groove, 7-a bar, 8-a tightening bolt, 9-a guide rod, 10-a spring, 11-a guide hole, 12-a matching plate, 13-a contact ball, 14-a control room, 15-an excavating arm and 16-a crawler mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 to 8.
Example 1
As shown in fig. 1-8, the mining machine of the present invention comprises an excavator, the excavator comprises a track mechanism 16, a control room 14 fixed on the track mechanism 16, an excavating arm 15 connected with the lower side of the control room, and a bucket fixed at the end of the excavating arm 15, the bucket comprises a bucket body 1 and a bucket tooth assembly fixed on the bottom plate of the bucket body 1, the bucket tooth assembly comprises a mounting bar 2, a bucket tooth 3, a baffle 4, a fixing screw 5 and a tightening assembly, the mounting bar 2 is fixed on the bottom plate, the axis of the mounting bar 2 is parallel to the edge line of the bottom plate at the feed end of the bucket body 1, a mounting groove 6 is arranged on the side of the mounting bar 2 away from the bottom plate, the opening size of the mounting groove is smaller than the size of the bottom of the bucket, the axis of the mounting groove is parallel to the axis of the mounting bar 2, and one end of the mounting groove 6 is a closed end, the other end is an open end;
the baffle 4 is fixed on a side plate of the bucket body 1 through a fixing screw 5, and the baffle 4 covers the open end of the mounting groove 6;
the bucket teeth 3 are arranged in sequence along the axis of the mounting groove 6, the tooth roots of the bucket teeth 3 are provided with the bars 7 matched with the mounting groove 6, the shape and the size of the cross section of each bar 7 are consistent with those of the cross section of the mounting groove 6, and the length of each bar 7 in the axial direction of the mounting groove 6 is greater than that of the bucket teeth 3 in the axial direction;
the tight subassembly in top includes tight bolt 8 in top, guide bar 9 and spring 10, tight bolt 8 in top and 4 threaded connection of baffle, and its axis is parallel with the axis of mounting groove 6, and its pole portion is arranged in mounting groove 6, is provided with guiding hole 11 at tight bolt 8's pole portion end in top, guiding hole 11 is inserted to the one end of guide bar 9, the other end of guide bar 9 and the tip contact of the strip piece 7 nearest apart from the 6 open ends in mounting groove, spring 10 cover is established on guide bar 9, its both ends respectively with tight bolt 8's pole portion terminal and strip piece 7 contact, and spring 10 is in compression state.
In the utility model, on the bucket in use, two ends of the spring 10 are respectively contacted with the rod end of the puller bolt 8 and the bar 7, and the spring 10 is in compression state, so that each bucket tooth 2 is in axial compression state in the axial direction of the mounting groove 6 and can not slide or shake randomly; the spring that is in compression state has simultaneously increased the thread axial atress of the bolt that is in fastening state, prevents that the bolt from relaxing, then reduces the maintenance frequency of the fastening of bucket tooth, reduces the maintenance cost in scraper bowl mechanism later stage.
When the impaired dipper teeth 3 of later stage change, relax fastening screw earlier, take off baffle 4 to make the open end of mounting groove 6 expose, take out each dipper teeth 3 from the open end of mounting groove 6 in proper order after that, place mounting groove 6 with new dipper teeth from the open end of mounting groove 6 in proper order again in, then pass through fastening screw with baffle 4 and fix on the lateral wall of scraper bowl, and screw up the puller bolt, so that spring 1 is in compression state.
To sum up, the utility model discloses make all bucket teeth share same fastening components and fix, do benefit to the maintenance in later stage, and because the direction of fastening direction for being on a parallel with the direction of bottom plate blade to can increase the elastic component on the bolt that is used for the fastening, with the thread axial atress of the bolt that the increase is in fastening state, prevent that the bolt from relaxing, then reduce the maintenance frequency of the fastening nature of bucket tooth, reduce the maintenance cost in scraper bowl mechanism later stage.
Example 2
The present embodiment is an explanation of the fitting between the tooth 3 and the mounting bar 2.
As shown in fig. 1-8, in the utility model, the cross section of mounting bar 2 is circular, as shown in fig. 1, all is provided with cooperation board 12 between bucket tooth 3 and strip piece 7, cooperation board 12 is the cylinder arc, and its convex surface is connected with bucket tooth 3, and its concave surface is connected with one side of keeping away from the 6 tank bottoms of mounting groove on mounting bar 2, and the mounting bar 2 inscribes in the interior concave surface of cooperation board 12, as shown in fig. 5 and 6.
The setting of cooperation board 12 has increased the contact surface between tooth 3 and the mounting bar 2 to tooth 3's limit structure has been increased, with the cooperation position of having protected between tooth 2 and the mounting bar 2, the too big condition of stress appears because of the contact surface undersize.
Preferably, the central angle α subtended by the mating panels 12 is 210 °.
Example 3
The present embodiment is an explanation of the tooth 3.
As shown in fig. 4, in the present invention, the bucket teeth 3, the bar 7 and the matching plate 12 are integrally formed, and the material thereof is wear-resistant steel NM 360.
Example 4
The embodiment is described for the mounting groove 6.
As shown in fig. 7-8, in the present invention, the mounting groove 6 is a dovetail groove. The mounting groove 6 can also adopt a T-shaped groove or a groove with other structures.
Example 5
The present embodiment is an explanation of the spring 10.
As shown in fig. 5, in the present invention, contact balls 13 are provided at both ends of the spring 10.
The provision of the contact ball 13 prevents the end of the spring 10 in a compressed state from being scratched at the end of the puller bolt and the end of the bar.
Example 6
The present embodiment is an explanation of the mounting bar 2.
As shown in fig. 4, in the present invention, the mounting bar 2 and the bottom plate are integrally formed.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a mining machine convenient to change wearing and tearing bucket tooth, includes the excavator, the excavator includes crawler attachment (16), fixes control room (14) on crawler attachment (16) and excavates arm (15) with control room (14) downside is connected, fixes the terminal scraper bowl in excavating arm (15), the scraper bowl includes bucket body (1) and fixes the bucket tooth subassembly on bucket body (1) bottom plate, its characterized in that: the bucket tooth assembly comprises a mounting bar (2), bucket teeth (3), a baffle (4), a fixing screw (5) and a jacking assembly, wherein the mounting bar (2) is fixed on the bottom plate, the axis of the mounting bar (2) is parallel to the side line of the bottom plate, which is positioned at the feed end of the bucket body (1), the mounting bar (2) is provided with a mounting groove (6) at one side far away from the bottom plate, the opening size of the mounting groove is smaller than the size of the bottom of the bucket, the axis of the mounting groove is parallel to the axis of the mounting bar (2), one end of the mounting groove (6) is a closed end, and the other end of the mounting groove is an open end;
the baffle (4) is fixed on a side plate of the bucket body (1) through a fixing screw (5), and the baffle (4) covers the open end of the mounting groove (6);
the bucket teeth (3) are arranged in sequence along the axis of the mounting groove (6), the tooth roots of the bucket teeth (3) are provided with strip blocks (7) matched with the mounting groove (6), the shape and size of the cross section of each strip block (7) are consistent with the shape and size of the cross section of the mounting groove (6), and the length of each strip block (7) in the axial direction of the mounting groove (6) is greater than that of the bucket teeth (3) in the axial direction;
the tight subassembly in top includes tight bolt (8), guide bar (9) and spring (10), tight bolt (8) and baffle (4) threaded connection in top, and its axis is parallel with the axis of mounting groove (6), and its pole portion is arranged in mounting groove (6), is provided with guiding hole (11) at the pole portion end of tight bolt (8) in top, during guiding hole (11) were inserted to the one end of guide bar (9), the other end of guide bar (9) and the tip contact of strip piece (7) nearest apart from mounting groove (6) open end, spring (10) cover is established on guide bar (9), and its both ends contact with the pole portion end and strip piece (7) of tight bolt (8) in top respectively, and spring (10) are in compression state.
2. The mining machine that facilitates replacement of a worn tooth of the bucket of claim 1, wherein: the cross section of mounting bar (2) is circular, all is provided with cooperation board (12) between bucket tooth (3) and strip piece (7), cooperation board (12) are the cylinder arc, and its convex surface is connected with bucket tooth (3), and its interior concave surface is connected with one side of keeping away from mounting groove (6) tank bottom on mounting bar (2), and mounting bar (2) inscribe in the interior concave surface of cooperation board (12).
3. The mining machine that facilitates replacement of a worn tooth of the bucket of claim 2, wherein: the central angle α subtended by the mating plates (12) is 210 °.
4. A mining machine for facilitating replacement of worn teeth as claimed in claim 2 or claim 3, wherein: bucket tooth (3), strip piece (7) and cooperation board (12) are integrated into one piece spare, and its material is wear-resisting steel NM 360.
5. The mining machine that facilitates replacement of a worn tooth of the bucket of claim 1, wherein: the mounting groove (6) is a dovetail groove.
6. The mining machine that facilitates replacement of a worn tooth of the bucket of claim 1, wherein: contact balls (13) are provided at both ends of the spring (10).
7. The mining machine that facilitates replacement of a worn tooth of the bucket of claim 1, wherein: the mounting bar (2) and the bottom plate are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920545542.5U CN209924001U (en) | 2019-04-19 | 2019-04-19 | Mining machinery convenient to change wearing and tearing bucket tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920545542.5U CN209924001U (en) | 2019-04-19 | 2019-04-19 | Mining machinery convenient to change wearing and tearing bucket tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209924001U true CN209924001U (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920545542.5U Expired - Fee Related CN209924001U (en) | 2019-04-19 | 2019-04-19 | Mining machinery convenient to change wearing and tearing bucket tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209924001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364552A (en) * | 2020-03-19 | 2020-07-03 | 华质建设集团有限公司 | Foundation pit groove cleaning and leveling device and using method thereof |
-
2019
- 2019-04-19 CN CN201920545542.5U patent/CN209924001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364552A (en) * | 2020-03-19 | 2020-07-03 | 华质建设集团有限公司 | Foundation pit groove cleaning and leveling device and using method thereof |
| CN111364552B (en) * | 2020-03-19 | 2022-03-29 | 华质建设集团有限公司 | Foundation pit groove cleaning and leveling device and using method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 Termination date: 20210419 |