CN202673291U - Coal mining machine rocker arm height adjusting mechanism - Google Patents
Coal mining machine rocker arm height adjusting mechanism Download PDFInfo
- Publication number
- CN202673291U CN202673291U CN 201220355928 CN201220355928U CN202673291U CN 202673291 U CN202673291 U CN 202673291U CN 201220355928 CN201220355928 CN 201220355928 CN 201220355928 U CN201220355928 U CN 201220355928U CN 202673291 U CN202673291 U CN 202673291U
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- China
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- rocker arm
- bearing seat
- coal mining
- upper bearing
- screw
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Abstract
The utility model discloses a coal mining machine rocker arm height adjusting mechanism. A rotary drum (1) is positioned on a rocker arm (2), the rocker arm (2) is connected with a host case box body (11) through a rocker arm rotating shaft (2a), an upper bearing seat (7) and a lower bearing seat (4) are fixed on the host case box body (11), and an upper bearing seat cover (8) is arranged at the top end of the upper bearing seat (7). Tapered roller bearings (9) are arranged in the upper bearing seat (7) and the lower bearing seat (4), two ends of a screw rod (6) are respectively connected with the upper bearing seat (7) and the lower bearing seat (4) through each tapered roller bearing (9), the screw rod (6) is connected with a nut rod (5) through threads which are meshed with each other, a sliding seat (3) is fixedly connected to the rocker arm (2), two ends of the nut rod (5) are inserted into an oblong groove on the sliding seat (3), and the nut rod (5) is connected with the sliding seat (3) in sliding mode. When the coal mining machine rocker arm height adjusting mechanism is utilized in 0.5m-0.7m extremely thin coal seam mining, the coal mining rotary drum can be conveniently replaced, both time and labor are saved, the working effect is improved by 2-3 times, and promotion and practical values exist.
Description
Technical field
The utility model relates to a kind of guiding mechanism, and relating in particular to a kind of is the rocker arm of coal mining machine height regulating mechanism of 0.5m～0.7m for working seam thickness.
Background technology
At present, (single ended shearer that uses during 0.5m～0.7m) is owing to be subjected to the restriction in space, coal seam at the exploitation ultra-thin coal seam, this single ended shearer adopts the form of structure of resting barrel usually, the coal seam that the fixing cylinder in position can only cut a certain thickness, when the coal seam thickness of coal face changes, the cylinder (cylinder badly damaged also need change) of different-diameter must be changed, the exploitation requirement of different coal could be satisfied.Change cylinder at getting working face wastes time and energy very much, has a strong impact on production efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of increases work efficiency, shortens the exploitation ultra-thin coal seam rocker arm of coal mining machine height regulating mechanism that cylinder is changed the time and alleviated labor intensity of operating staff.
For achieving the above object, the technical solution adopted in the utility model is: described a kind of rocker arm of coal mining machine height regulating mechanism comprises cylinder; rocking arm; rocker shaft; slide; step; screw bar; screw mandrel; top chock; upper bearing (metal) flap; taper roll bearing and main frame casing; cylinder is positioned on the rocking arm; rocking arm is connected with the main frame casing through rocker shaft; top chock and step are fixed on the main frame casing; on the top of top chock the upper bearing (metal) flap is housed; in top chock and step taper roll bearing is housed; two of screw mandrel is connected with top chock and step through taper roll bearing; near screw mandrel the screw bar is arranged, and screw mandrel links to each other with the screw bar through the screw thread of each other engagement.Slide is fixed on the rocking arm, and in the oval-shaped slot on two insertion slide of screw bar, the screw bar forms with slide and is slidingly connected.
Adopt a kind of rocker arm of coal mining machine height regulating mechanism that as above technical scheme provides compared with prior art, technique effect is:
1. easy to operate practicality.When changing the cylinder of very thin seam coal winning machine, needn't need only adjust with manual or maneuver mode the height of rocking arm through manually rocking arm one end being raised, change efficiently and easily cylinder, shorten the time of changing cylinder.
2. increase work efficiency 2～3 times.
3. can be used for neatly the exploitation of 0.5m～0.7m ultra-thin coal seam.
Description of drawings
Fig. 1 is a kind of rocker arm of coal mining machine height regulating mechanism forward structure schematic diagram described in the utility model, also is Figure of abstract of the present utility model.
Fig. 2 is the C-C line cross-sectional schematic along Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 1.
Fig. 4 is the B-B line cross-sectional schematic along Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Described a kind of rocker arm of coal mining machine height regulating mechanism comprises cylinder 1, rocking arm 2, rocker shaft 2a, slide 3, step 4, screw bar 5, screw mandrel 6, top chock 7, upper bearing (metal) flap 8, taper roll bearing 9 and main frame casing 11, wherein forms the worm drive adjustment member by slide 3, step 4 and top chock 7, screw bar 5 and screw mandrel 6.Cylinder 1 is positioned on the rocking arm 2, and rocking arm 2 is connected with main frame casing 11 through rocker shaft 2a, and this is prior art.Top chock 7 and step 4 fixing (company) are on the main frame casing 11 of coal-winning machine, and upper bearing (metal) flap 8 is fitted in the top of top chock 7, prevents that external impurities (mainly being Pulverized Coal) from entering in the top chock 7.In top chock 7 and step 4 taper roll bearing 9 is housed, two of screw mandrel 6 is connected with top chock 7 and step 4 through taper roll bearing 9, and namely two of screw mandrel 6 can be rotated in the taper roll bearing 9 in top chock 7 and step 4.Near screw mandrel 6 screw bar 5 is arranged, screw mandrel 6 meshes each other with the screw thread of screw bar 5, and namely screw mandrel 6 links to each other with screw bar 5 through the screw thread of each other engagement.Slide 3 is fixed on (can be welding or screw is connected mutually) on the rocking arm 2, be processed with oval-shaped slot on the slide 3, in the oval-shaped slot on two insertion slide 3 of screw bar 5, being slidingly connected so that screw bar 5 forms with slide 3, can slide along the oval-shaped slot on the slide 3 in the two ends of screw bar 5.When screw mandrel 6 when artificial or maneuver mode rotate, since screw mandrel 6 can only wire winding rod 6 in top chock 7 and step 4 center line rotate, therefore, the rotatablely moving of screw mandrel 6 drives screw bar 5 and moves up and down, thereby moving up and down of screw bar 5 drives the rocking arm 2 that is connected mutually with slide 3 around the central point C of rocker shaft 2a
1Rotate; the rotation of rocking arm 2 makes the variation of making height with the termination of cylinder 1; namely reach the effect of rocking arm Height Adjustment (joint); just can change efficiently and easily cylinder 1 after the Height Adjustment (or adjusting); can carry out digging to the coal seam (mainly being the ultra-thin coal seam of 0.5m～0.7m) of different-thickness, reach purpose described in the utility model.
Claims (1)
1. rocker arm of coal mining machine height regulating mechanism, comprise cylinder (1), rocking arm (2), rocker shaft (2a), slide (3), step (4), screw bar (5), screw mandrel (6), top chock (7), upper bearing (metal) flap (8), taper roll bearing (9) and main frame casing (11), on cylinder (1) location rocking arm (2), rocking arm (2) is connected with main frame casing (11) through rocker shaft (2a), it is characterized in that: top chock (7) and step (4) are fixed on main frame casing (11), on the top of top chock (7), upper bearing (metal) flap (8) is housed, in top chock (7) and step (4), taper roll bearing (9) is housed, two of screw mandrel (6) is connected through the same top chock of taper roll bearing (9) (7) and step (4), near screw mandrel (6), screw bar (5) is arranged, screw mandrel (6) is connected with screw bar (5) through the screw thread of engagement each other, it is upper that slide (3) is fixed on rocking arm (2), and insert in the oval-shaped slot on slide (3) at two of screw bar (5), and the same slide of screw bar (5) (3) forms and is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355928 CN202673291U (en) | 2012-07-19 | 2012-07-19 | Coal mining machine rocker arm height adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355928 CN202673291U (en) | 2012-07-19 | 2012-07-19 | Coal mining machine rocker arm height adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673291U true CN202673291U (en) | 2013-01-16 |
Family
ID=47494201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220355928 Expired - Fee Related CN202673291U (en) | 2012-07-19 | 2012-07-19 | Coal mining machine rocker arm height adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960352A (en) * | 2020-07-31 | 2020-11-20 | 陕煤集团神木红柳林矿业有限公司 | Method for replacing rocker arm roller of fully mechanized coal mining face |
-
2012
- 2012-07-19 CN CN 201220355928 patent/CN202673291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960352A (en) * | 2020-07-31 | 2020-11-20 | 陕煤集团神木红柳林矿业有限公司 | Method for replacing rocker arm roller of fully mechanized coal mining face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130116 Termination date: 20190719 |