CN103879919A - Tool used for lifting weight and method for replacing supporting roller of belt conveyor - Google Patents
Tool used for lifting weight and method for replacing supporting roller of belt conveyor Download PDFInfo
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- CN103879919A CN103879919A CN201410048533.7A CN201410048533A CN103879919A CN 103879919 A CN103879919 A CN 103879919A CN 201410048533 A CN201410048533 A CN 201410048533A CN 103879919 A CN103879919 A CN 103879919A
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- 238000009963 fulling Methods 0.000 abstract 2
- 239000003245 coal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention discloses a tool used for lifting a weight. The tool comprises a support portion (1), a lifting portion (2) capable of moving relatively to the support portion between a lifting position and a tucking position along lifting and retracting directions, a driving portion used for driving the lifting portion to move between the lifting position and the tucking position, and a positioning portion used for positioning the lifting portion at the lifting position. In addition, the invention further provides a method for replacing a supporting roller of the belt conveyor. The tool is applied in the method to perform replacement of the supporting roller. The tool and the method are convenient for operating personnel to replace the supporting roller of the belt conveyor.
Description
Technical field
The present invention relates to mechanical field, particularly, relate to the method for the carrying roller of a kind of instrument for lifting weight and replacing belt feeder.
Background technology
Carry every year coal to reach 8,000 ten thousand tons to 9,000 ten thousand tons taking Coal Transport as main comprehensive harbour, approximately more than 50 kilometer of the belt feeder total length of conveying coal.Belt feeder is along the line and unit carrying roller usage quantity is huge, approximately 200,000 of online all kinds of carrying rollers, and these carrying rollers drive belt to complete whole mass transport work.Carrying roller, under so high frequency of utilization, can be with and serve damage accordingly, and the time that replacing carrying roller spends becomes an importance that affects production operation efficiency.
The method of traditional replacing carrying roller roughly has two kinds: one is with pulling jack, belt to be played, and another kind is manually belt to be lifted with hands.First method is provided with certain requirement to the position of jack, must have the space that hangs and operate jack, and the operational site of most of carrying rollers does not possess such space.Although second method is less demanding to operating environment, the personnel that manually shoulder belt needs are more, and changing a carrying roller approximately needs 5 to 6 people.And change relatively effort of operation, also there is certain danger.
Therefore the method for replacing carrying roller of the prior art haves much room for improvement.
Summary of the invention
The object of this invention is to provide the method for the carrying roller of a kind of instrument for lifting weight and replacing belt feeder, so that operating personal is changed the carrying roller of belt feeder.
To achieve these goals, on the one hand, the invention provides a kind of instrument for lifting weight, this instrument comprises: seat part; Can and regain the lifting portion that direction moves with respect to seat part between lift location and curling position along lifting; For the drive division that drives lifting portion to move between lift location and curling position; And for lifting portion being positioned to the location division of lift location.
Preferably, drive division is movable pulley component, and this movable pulley component comprises: movable pulley, and this movable pulley is arranged in lifting portion; And flexible cable, this flexible cable moves with driving movable pulley on movable pulley, and wherein, the fixed end of flexible cable and drive end are all connected in seat part.
Preferably, drive division comprises the multiple movable pulley components that arrange at intervals.
Preferably, seat part comprises along lifting and regains the first lift arm and the second lift arm that direction arranges at intervals, lifting portion comprises along lifting and regains the 3rd lift arm (53) and the 4th lift arm (54) that direction arranges at intervals and parallels with the first lift arm and the second lift arm respectively, wherein, on the first lift arm and the second lift arm or on the 3rd lift arm and the 4th lift arm, be provided with and make lifting portion along lifting and regain the guiding piece that direction moves with respect to seat part.
Preferably, guiding piece be separately fixed on the first lift arm and the second lift arm and axis along lifting and regain direction extend multiple annulus, and the 3rd hold-down arm is set in the annulus on the first lift arm, the 4th hold-down arm is set in the annulus on the second lift arm.
Preferably, seat part comprises drive spindle, and the two ends of this drive spindle are arranged on the first lift arm and the second lift arm by bearing respectively, and the drive end of flexible cable is wrapped on drive spindle; And at least one end of drive spindle is connected with driving handle.
Preferably, seat part comprises transverse arm, and the two ends of this transverse arm are connected on the first lift arm and the second lift arm; Wherein, the fixed end of the flexible cable of movable pulley component is fixedly connected on transverse arm.
Preferably, seat part comprises the first hold-down arm and the second hold-down arm that arrange at intervals along the Width of the instrument perpendicular to lifting and withdrawal direction, and lifting portion comprises the 3rd hold-down arm and the 4th hold-down arm that arrange at intervals and parallel with the first hold-down arm and the second hold-down arm respectively along Width; Wherein, the first hold-down arm is positioned at the bottom of seat part, and the 4th hold-down arm is positioned at the top of lifting portion, and movable pulley is connected on the 3rd hold-down arm; And the first hold-down arm is greater than or equal to the twice of the spacing distance between the first lift arm and the second lift arm along the development length of Width, the 4th hold-down arm is greater than or equal to the twice of the spacing distance between the 3rd lift arm and the 4th lift arm along the development length of Width.
Preferably, location division is hook-like part, and hook-like part is connected on transverse arm, and lifting portion during in lift location hook-like part hook the 3rd hold-down arm so that lifting portion is located.
On the other hand, the present invention also provides a kind of method of the carrying roller of changing belt feeder, the above-mentioned instrument for lifting weight of the method application operates, and at least comprise the following steps: 1) vertical direction between the end face of the return belt of belt feeder and the bottom surface of carrying belt be set as to lifting and regain direction, and making lifting portion in curling position; 2) will be placed on the position of the carrying roller close to be replaced between carrying belt and return belt for the instrument of lifting weight, and seat part is placed on the end face of return belt; 3) utilize drive division that lifting portion is urged to lift location, and utilize location division that lifting portion is positioned to lift location; 4) operation of carrying roller is changed in enforcement.
By technique scheme, drive division can drive lifting portion along lifting and regain direction, moves between lift location and curling position with respect to seat part.And location division can be positioned at lift location by lifting portion.Like this, in the time instrument of the present invention being placed between the end face of return belt of belt feeder and the bottom surface of carrying belt, can, by driving lifting portion that lifting portion is moved with respect to seat part, the spacing between carrying belt and return belt effectively be increased.So, a part of predetermincd tension of belt to carrying roller can be effectively removed, thereby the operation of carrying roller can be easily implemented to change.Taking the total amount of carrying roller as 200,000 as example, if the rate of rolling off the production line of annual carrying roller is about 3%, within 1 year, change carrying roller approximately 200,000 X3%=6000 roots.Facts have proved, before using instrument of the present invention, changing each carrying roller on average approximately needs 20 minutes; After using instrument of the present invention, the replacing time can be reduced to about 10 minutes.Therefore, can shorten every year the approximately 1000 hours carrying roller time of changing.In addition, before using instrument of the present invention, changing carrying roller needs about 5-6 people; After using instrument of the present invention, changing carrying roller only needs 2-3 people, has saved a large amount of labour powers.
Other features and advantages of the present invention are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is according to the block diagram of the instrument for lifting weight of the present invention, and the state of lifting portion in curling position is shown;
Fig. 2 is according to the block diagram of the instrument for lifting weight of the present invention, and the state of lifting portion in lift location is shown;
Fig. 3 is the use state stereogram while applying the carrying roller of the tool changing belt feeder for lifting weight of the present invention, and the state of lifting portion in curling position is shown;
Fig. 4 is the use state stereogram while applying the carrying roller of the tool changing belt feeder for lifting weight of the present invention, and the state of lifting portion in lift location is shown.
Description of reference numerals
1 seat part 11 drive spindle 111 driving handles
12 bearings
2 lifting portions
31 movable pulleys
32 flexible cable 321 fixed end 322 drive ends
4 hook-like parts
51 first lift arm 52 second lift arm 53 the 3rd lift arms
54 the 4th lift arms
61 first hold-down arm 62 second hold-down arm 63 the 3rd hold-down arms
64 the 4th hold-down arm 65 transverse arms
7 guiding pieces
101 carrying belt 102 return belt 103 carrying rollers
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
With reference to figure 1 and Fig. 2, the invention provides a kind of instrument for lifting weight.This instrument comprises seat part 1, lifting portion 2, drive division and location division.Wherein, seat part 1 is positioned at the bottom of instrument as the support component of instrument; Lifting portion 2 can and regain direction and move with respect to seat part 1 between the curling position shown in the lift location shown in Fig. 2 and Fig. 1 along lifting; Drive division is used for driving lifting portion 2 to move between lift location and curling position.Should be appreciated that, lifting and withdrawal direction are that instrument can lift weight the direction to lift location, are also the directions that instrument can be recovered to curling position.
More specifically, according to embodiments of the invention, seat part 1 is the quadrilateral frame posture structure that shape is identical with lifting portion 2.Wherein, seat part 1 comprises along lifting and regains the first lift arm 51 and the second lift arm 52 that direction arranges at intervals, and the first hold-down arm 61 and the second hold-down arm 62 that arrange at intervals along the Width of the instrument perpendicular to lifting and withdrawal direction.Similarly, lifting portion (2) comprises along described lifting and regains the 3rd lift arm 53 and the 4th lift arm 54 that direction arranges at intervals, and the 3rd hold-down arm 63 arranging at intervals along the Width of instrument and the 4th hold-down arm 64.Wherein, according to embodiments of the invention, the first lift arm 51 and the second lift arm 52 parallel with the 3rd lift arm 53 and the 4th lift arm 54 respectively, and the first hold-down arm 61 and the second hold-down arm 62 parallel with the 3rd hold-down arm 63 and the 4th hold-down arm 64 respectively.More preferably, the first lift arm 51 to the 4th lift arm 54 is parallel to each other, and the first hold-down arm 61 to the 4th hold-down arm 64 is parallel to each other.
Continue with reference to figure 1 and Fig. 2, according to embodiments of the invention, on first lift arm 51 and the second lift arm 52 of seat part 1, or on the 3rd lift arm 53 and the 4th lift arm 54 of lifting portion 2, be provided with guiding piece 7.This guiding piece 7 can guide lifting portion 2 along lifting and regain direction and move with respect to seat part 1.Such as but not limited to, guiding piece 7 is for being fixed on the annulus in the first lift arm 51 and the second lifting portion 52.On the first lift arm 51, can be fixed with one or more annulus, on the second lift arm 52, also can be fixed with one or more annulus.The axis of these annulus is along lifting and regain direction extension.And the 3rd lift arm 53 is set in one or more annulus on the first lift arm 51, the 4th lift arm 54 is set in one or more annulus on the second lift arm 52.Like this, the 3rd lift arm 53 and the 4th lift arm 54 can be realized along the axis direction of annulus and moving, that is, lifting portion 2 can realize along lifting and regain direction and move with respect to seat part 1.
In more detail, the first hold-down arm 61 is positioned at the bottom of seat part 1, thereby forms the support component of the bottom of instrument; The 4th hold-down arm 64 is positioned at the top of lifting portion 2, thereby forms the lifting parts at the top of instrument.According to embodiments of the invention, for seat part 1, if the spacing distance between the first lift arm 51 and the second lift arm 52 is defined as to D1, the first hold-down arm 61 is defined as to L1 along the development length of Width, L1 is greater than or equal to the twice of D1.Like this, effective Area of bearing of seat part 1 can be increased, thereby the stability of bearing force and the improvement instrument of seat part 1 can be improved.Similarly, for lifting portion 2, if the spacing distance between the 3rd lift arm 53 and the 4th lift arm 54 is defined as to D2, the 4th hold-down arm 64 is defined as to L2 along the development length of Width, L2 is greater than or equal to the twice of D2.Like this, effective lifting area of lifting portion 2 can be increased, thereby the stability of hoisting force and the improvement instrument of lifting portion can be improved.
Still with reference to figure 1 and Fig. 2, according to embodiments of the invention, drive division is movable pulley component.This movable pulley component comprises movable pulley 31 and for lifting the flexible cable 32 of movable pulley 31.One end of flexible cable 32 is fixed end 321, and the other end is drive end 322, and flexible cable 32 is on movable pulley 31.Like this, by lifting drive end 322, can drive movable pulley 31 to move.
In more detail, according to embodiments of the invention, movable pulley 31 is connected on the 3rd hold-down arm 63.According to embodiments of the invention, seat part 1 comprises transverse arm 65, and the two ends of this transverse arm 65 are connected on the first lift arm 51 and the second lift arm 52.Preferably, the length of transverse arm 65 is extended along the Width of instrument.According to embodiments of the invention, the fixed end 321 of flexible cable 32 is fixedly connected on transverse arm 65.In addition, according to embodiments of the invention, seat part 1 also comprises drive spindle 11, and the two ends of this drive spindle 11 are arranged on the first lift arm 51 and the second lift arm 52 by bearing 12 respectively.Preferably, the length of drive spindle 11 is extended along the Width of instrument.According to embodiments of the invention, the drive end 322 of flexible cable 32 is wrapped on drive spindle 11; And, at least one end of drive spindle 11, be connected with driving handle 111.Like this, by applying propulsive effort to driving handle 111, can make flexible cable 32 be wrapped in more on drive spindle 11, thereby lift movable pulley 31, and then lifting portion 2 is moved towards the lift location of lifting weight.Or, by discharging driving handle 111, can make flexible cable 32 discharge from drive spindle 11, thereby discharge movable pulley 31, and then lifting portion 2 is moved towards curling position.
Further, according to embodiments of the invention, drive division comprises the multiple movable pulley components that arrange at intervals along the Width of instrument.Such as but not limited to, two movable pulley components shown in Fig. 1 and Fig. 2.Preferably, multiple movable pulley components are uniformly distributed, thereby make the stressed more balanced of lifting portion 2.
In addition, according to embodiments of the invention, also comprise location division for the instrument of lifting weight, for lifting portion 2 is positioned to lift location.More specifically, location division is hook-like part 4, and this hook-like part 4 is connected on transverse arm 65, and preferably, these hook-like part 4 openings arrange towards the 3rd hold-down arm 63.In lifting portion 2, during in lift location, hook-like part 4 hooks the 3rd hold-down arm 63, thereby lifting portion 2 can be located.
On the other hand, the present invention also provides a kind of method of the carrying roller of changing belt feeder.The method utilizes above-mentioned instrument to operate.
With reference to figure 3 and Fig. 4, belt feeder comprises the carrying belt 101 that carries material, and is positioned at the return belt 102 of carrying belt 101 belows.Vertical direction between the end face of the return belt of belt feeder 102 and the bottom surface of carrying belt 101 is set as to lifting and regains direction.According to embodiments of the invention, in the time changing carrying roller 103, first make the lifting portion 2 of instrument in curling position, and instrument is placed on to the position of the carrying roller 103 close to be replaced between carrying belt 101 and return belt 102.Then, according to preferred embodiment of the present invention, seat part 1 is placed on the end face of return belt 102, utilizes drive division that lifting portion 2 is urged to lift location, and utilize location division that lifting portion 2 is positioned to lift location.Like this, belt 101 jack-up just can just be carried in lifting portion 2, thereby the end face of return belt 102 can be increased to the spacing between the bottom surface of carrying belt 101.So, a part of predetermincd tension of belt to carrying roller 103 can be effectively removed, thereby the operation of carrying roller 103 can be easily implemented to change.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. for an instrument for lifting weight, it is characterized in that, described instrument comprises:
Seat part (1);
Can and regain the lifting portion (2) that direction moves with respect to described seat part (1) between lift location and curling position along lifting;
Be used for the drive division that drives described lifting portion (2) to move between described lift location and curling position; And
For described lifting portion (2) being positioned to the location division of described lift location.
2. the instrument for lifting weight according to claim 1, is characterized in that, described drive division is movable pulley component, and this movable pulley component comprises:
Movable pulley (31), this movable pulley (31) is arranged in described lifting portion (2); And
Flexible cable (32), this flexible cable (32) is upper to drive described movable pulley (31) mobile around described movable pulley (31), and wherein, fixed end (321) and the drive end (322) of described flexible cable (32) are all connected in described seat part (1).
3. the instrument for lifting weight according to claim 2, is characterized in that, described drive division comprises the multiple described movable pulley component arranging at intervals.
4. according to the instrument for lifting weight described in claim 2 or 3, it is characterized in that, described seat part (1) comprises along described lifting and regains the first lift arm (51) and the second lift arm (52) that direction arranges at intervals, described lifting portion (2) comprises along described lifting and regains the 3rd lift arm (53) and the 4th lift arm (54) that direction arranges at intervals and parallels with described the first lift arm (51) and the second lift arm (52) respectively
Wherein, on described the first lift arm (51) and the second lift arm (52) or on the 3rd lift arm (53) and the 4th lift arm (54), be provided with and make described lifting portion (2) along described lifting and regain the direction guiding piece (7) mobile with respect to described seat part (1).
5. the instrument for lifting weight according to claim 4, it is characterized in that, described guiding piece (7) is the multiple annulus that are separately fixed at described the first lift arm (51) and the second lift arm (52) above and axis extends along described lifting and withdrawal direction, and
Described the 3rd hold-down arm (63) is set in the annulus on described the first lift arm (51), and described the 4th hold-down arm (64) is set in the annulus on described the second lift arm (52).
6. the instrument for lifting weight according to claim 4, it is characterized in that, described seat part (1) comprises drive spindle (11), the two ends of this drive spindle (11) are arranged on described the first lift arm (51) by bearing (12) respectively and the second lift arm (52) is upper, and the drive end (322) of described flexible cable (32) is wrapped on described drive spindle (11); And
At least one end of described drive spindle (11) is connected with driving handle (111).
7. the instrument for lifting weight according to claim 6, is characterized in that, described seat part (1) comprises transverse arm (65), and the two ends of this transverse arm (65) are connected on described the first lift arm (51) and the second lift arm (52);
Wherein, the fixed end (321) of the flexible cable of described movable pulley component (32) is fixedly connected on described transverse arm (65).
8. the instrument for lifting weight according to claim 7, it is characterized in that, described seat part (1) comprises the first hold-down arm (61) and the second hold-down arm (62) that arrange at intervals along the Width of the described instrument perpendicular to described lifting and withdrawal direction, and described lifting portion (2) comprises the 3rd hold-down arm (63) and the 4th hold-down arm (64) that arrange at intervals and parallel with described the first hold-down arm (61) and the second hold-down arm (62) respectively along described Width;
Wherein, described the first hold-down arm (61) is positioned at the bottom of described seat part (1), and described the 4th hold-down arm (64) is positioned at the top of described lifting portion (2), and described movable pulley (31) is connected on described the 3rd hold-down arm (63); And
Described the first hold-down arm (61) is greater than or equal to the twice of the spacing distance (D1) between described the first lift arm (51) and the second lift arm (52) along the development length (L1) of described Width, described the 4th hold-down arm (64) is greater than or equal to the twice of the spacing distance (D2) between described the 3rd lift arm (53) and the 4th lift arm (54) along the development length (L2) of described Width.
9. the instrument for lifting weight according to claim 8, it is characterized in that, described location division is hook-like part (4), it is upper that described hook-like part (4) is connected to described transverse arm (65), and hook-like part (4) hooks described the 3rd hold-down arm (63) so that described lifting portion (2) is located described in described lifting portion (2) is during in described lift location.
10. a method of changing the carrying roller of belt feeder, is characterized in that, described method application rights requires the instrument for lifting weight described in any one in 1-11 to operate, and at least comprises the following steps:
1) vertical direction between the end face of the return belt of belt feeder (102) and the bottom surface of carrying belt (101) be set as to described lifting and regain direction, and making described lifting portion (2) in described curling position;
2) the described instrument for lifting weight is placed on to the position of the carrying roller (103) close to be replaced between described carrying belt (101) and return belt (102), and described seat part (1) is placed on the end face of described return belt (102);
3) utilize described drive division that described lifting portion (2) is urged to described lift location, and utilize described location division that described lifting portion (2) is positioned to described lift location;
4) operation of described carrying roller (103) is changed in enforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048533.7A CN103879919B (en) | 2014-02-12 | 2014-02-12 | The method of instrument with the carrying roller changing belt feeder for lifting weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048533.7A CN103879919B (en) | 2014-02-12 | 2014-02-12 | The method of instrument with the carrying roller changing belt feeder for lifting weight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103879919A true CN103879919A (en) | 2014-06-25 |
| CN103879919B CN103879919B (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048533.7A Active CN103879919B (en) | 2014-02-12 | 2014-02-12 | The method of instrument with the carrying roller changing belt feeder for lifting weight |
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| Country | Link |
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| CN (1) | CN103879919B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105151661A (en) * | 2015-07-30 | 2015-12-16 | 兖州煤业股份有限公司 | Booster for carrier roller replacement |
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| CN201848681U (en) * | 2010-11-19 | 2011-06-01 | 山西晋城无烟煤矿业集团有限责任公司 | Roller replacement device of steel cord rubber belt conveyor |
| WO2011073455A1 (en) * | 2009-12-18 | 2011-06-23 | Inversiones Vinor, S.L. | Turning device for metal structures |
| CN202028911U (en) * | 2011-04-14 | 2011-11-09 | 山西晋城无烟煤矿业集团有限责任公司 | Carrier roller assembly and disassembly assisting device for belt conveyer |
| CN202423897U (en) * | 2011-09-21 | 2012-09-05 | 山西太钢不锈钢股份有限公司 | High-voltage cabinet maintenance lift truck for power substation |
| CN202846106U (en) * | 2012-10-19 | 2013-04-03 | 吴瑞克 | Roller replacing device for belt conveyor |
| CN203833548U (en) * | 2014-02-12 | 2014-09-17 | 中国神华能源股份有限公司 | Tool for lifting heavy object |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07206135A (en) * | 1994-01-26 | 1995-08-08 | Bridgestone Corp | Rainwater, etc., removing device for conveyor belt |
| US6371449B1 (en) * | 1999-09-24 | 2002-04-16 | Bruce T. Chamberlain | Portable motorcycle hoist |
| CN201389736Y (en) * | 2009-05-04 | 2010-01-27 | 中国水电建设集团路桥工程有限公司 | Carrier roller changer for heavy-duty belt conveyers |
| WO2011073455A1 (en) * | 2009-12-18 | 2011-06-23 | Inversiones Vinor, S.L. | Turning device for metal structures |
| CN201809111U (en) * | 2010-10-12 | 2011-04-27 | 修武县电业公司 | Lifting frame |
| CN201848681U (en) * | 2010-11-19 | 2011-06-01 | 山西晋城无烟煤矿业集团有限责任公司 | Roller replacement device of steel cord rubber belt conveyor |
| CN202028911U (en) * | 2011-04-14 | 2011-11-09 | 山西晋城无烟煤矿业集团有限责任公司 | Carrier roller assembly and disassembly assisting device for belt conveyer |
| CN202423897U (en) * | 2011-09-21 | 2012-09-05 | 山西太钢不锈钢股份有限公司 | High-voltage cabinet maintenance lift truck for power substation |
| CN202846106U (en) * | 2012-10-19 | 2013-04-03 | 吴瑞克 | Roller replacing device for belt conveyor |
| CN203833548U (en) * | 2014-02-12 | 2014-09-17 | 中国神华能源股份有限公司 | Tool for lifting heavy object |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105151661A (en) * | 2015-07-30 | 2015-12-16 | 兖州煤业股份有限公司 | Booster for carrier roller replacement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103879919B (en) | 2016-07-20 |
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