CN205296266U - Rotary mechanism of excavator work arm - Google Patents
Rotary mechanism of excavator work arm Download PDFInfo
- Publication number
- CN205296266U CN205296266U CN201521117769.8U CN201521117769U CN205296266U CN 205296266 U CN205296266 U CN 205296266U CN 201521117769 U CN201521117769 U CN 201521117769U CN 205296266 U CN205296266 U CN 205296266U
- Authority
- CN
- China
- Prior art keywords
- fixing
- swivel mount
- revolving support
- link
- limiting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a rotary mechanism of excavator work arm belongs to engineering machine tool technical field, support including the gyration, the gyration is supported the inner circle and is used for the swivel mount of steady job arm through bolted connection no. 1, the swivel mount sets up and to support the place ahead in the gyration, the gyration support the outer lane through bolted connection no. 1 be used for with excavator base machine fixed connection's link, the link sets up and supports the rear in the gyration, still is fixed with a speed reducer on the link, and the reducer output axle passes through drive gear and supports inner circle fixed connection with the gyration, a fixed stopper on the swivel mount circumference, the fixed limiting plate that is provided with on the link, the limiting plate tip extends to the swivel mount top, and the limiting plate setting is at the stopper along with on the swivel mount pivoted movement track. The utility model discloses stable in structure can bear axial force, radial force and the great moment of tumbling simultaneously, and 360 degrees rotations will be broken in stop device existence simultaneously, avoid oil pipeline's winding.
Description
Technical field
This utility model relates to a kind of rotating mechanism, the rotating mechanism of especially a kind of working arm of excavating machine, belongs to technical field of engineering machinery.
Background technology
Under existing mining equiment technical conditions, the working arm of rock gangway, half-coal rock roadway heading equipment and roadway repair equipment rotates main employing worm and gear rotation, rotary oscillation oil cylinder rotates, rack-and-pinion rotates several tradition rotation mode. Along with the development of construction of coal mine, the digging force of driving and prosthetic appliance demand is increasing, but above several rotation mode all can not bear bigger power of tumbling, thus limiting the mining ability of working arm, constrains the performance of mine mechanism.
Utility model content
This utility model technical issues that need to address are to provide the rotating mechanism of a kind of working arm of excavating machine, Stability Analysis of Structures, bearing axial force, radial force and bigger tilting moment, stopping means existence simultaneously will break 360 degree of rotations, it is to avoid the winding of oil pipeline simultaneously.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
A kind of rotating mechanism of working arm of excavating machine, including revolving support, revolving support inner ring is bolted one for fixing the swivel mount of working arm, described swivel mount is arranged on revolving support front, revolving support outer ring is bolted one for fixing the link being connected with excavator base machine, described link is arranged on revolving support rear, and link is further fixed on a reductor, and by driving, gear and revolving support inner ring are fixing to be connected speed reducer output shaft;
Fixing a limited block on described swivel mount circumference, described link is fixedly installed limiting plate, described limiting plate end extends to above swivel mount, and limiting plate is arranged on the movement locus that limited block rotates with swivel mount.
Further improvement is that of technical solutions of the utility model: described limiting plate both sides are each provided with the groove matched with limited block, and bottom portion of groove is provided with yielding rubber.
Further improvement is that of technical solutions of the utility model: the described limited block top distance from revolving support central axis is more than the limiting plate lower end distance from revolving support central axis.
Further improvement is that of technical solutions of the utility model: described driving gear and speed reducer output shaft are connected by spline, drives gear and revolving support inner circle phase meshing.
Further improvement is that of technical solutions of the utility model: described link includes the two blocks of fixing plates be arrangeding in parallel up and down, two blocks of fixing plates are connected each through bolt and pivoting support outer ring are fixing, fixing plate is provided with for fixing the fixing hole being connected with excavator, being provided with two pieces of gripper shoes be arrangeding in parallel between two blocks of fixing plates, described gripper shoe is vertical with fixing plate and revolving support centerline axis parallel is arranged.
Further improvement is that of technical solutions of the utility model: be additionally provided with between the described two blocks of fixing plates arranged up and down that one piece vertical with fixing plate and the installing plate of revolving support central axis upright, being provided with the installing hole for fixing reductor fuselage on described installing plate, reductor and installing plate are bolted to connection.
Owing to have employed technique scheme, the technological progress that this utility model obtains is:
Swivel mount of the present utility model and link are fixed with the Internal and external cycle of revolving support respectively, and revolving support inner ring is driven by reductor, and the setting of revolving support makes this rotating mechanism bear axial force, radial force and bigger tilting moment simultaneously. swivel mount circumference is fixed a limited block, swivel mount is provided above limiting plate, limiting plate is arranged on the movement locus that limited block rotates with swivel mount, namely limited block rotation process is interferenceed with limiting plate, the beginning and end that limited block rotates along with swivel mount all stops operating because of the existence of limiting plate, therefore the rotation of swivel mount 360 degree is changed into the close �� rotation (rotation making swivel mount because of limiting plate width can only be can not reach 180 degree close to 180 degree) of 180 degree by the combination of limiting plate and limited block, the oil transportation rubber tube that one end is fixed on development machine working arm one end and is fixed on the development machine at rotating mechanism rear will not be wrapped on working arm because of the rotation of working arm.
Limiting plate both sides are provided with the groove matched with limited block, and bottom portion of groove is provided with yielding rubber, and the alleviation swivel mount that arranges of yielding rubber forwards limited block and the collision of limiting plate during extreme position to, reduces noise, extends the service life of each parts.
Link includes about the two pieces fixing plates be arrangeding in parallel, arranges two pieces of gripper shoes between fixing plate, link simple in construction and firm, provides solid foundation for rotary operation. Between two pieces of two pieces of connecting plates, also fix one piece of installing plate, installing plate is provided with the installing hole of fixing reductor, the steadiness of link is be provided while the offer installation site that installing plate is reductor.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation;
Fig. 2 is this utility model sectional view;
Wherein, 1, revolving support, 2, swivel mount, 3, link, 31, fixing plate, 32, fixing hole, 33, gripper shoe, 34, installing plate, 35, installing hole, 4, reductor, 5, drive gear, 6, limiting plate, 7, limited block, 8, groove.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further details:
As shown in Figure 1, 2, rotating mechanism of the present utility model includes pivoting support 1, revolving support 1 inner ring is bolted a swivel mount 2, swivel mount 2 is used for fixing working arm, swivel mount 2 is arranged on the front of revolving support 1, revolving support 1 outer ring is bolted to connection a link 3, link 3 is arranged on the rear of revolving support 1, link 3 is connected for fixing with excavator base machine, being further fixed on a reductor 4 on link 3, by driving, gear 5 and revolving support 1 inner ring are fixing to be connected reductor 4 output shaft.Swivel mount 2 of the present utility model and link 3 are fixed with the Internal and external cycle of revolving support 1 respectively, and revolving support 1 inner ring is driven by reductor 4, and the setting of revolving support 1 makes this rotating mechanism bear axial force, radial force and bigger tilting moment simultaneously.
Link 3 includes the two blocks of fixing plates 31 be arrangeding in parallel up and down, two blocks of fixing plates 31 are all bolted to connection with the outer ring of pivoting support 1, fixing plate 31 is provided with fixing hole 32, link 3 is fixed by fixing hole 32 and excavator base machine, it is provided with two pieces of gripper shoes be arrangeding in parallel 33 between two blocks of fixing plates 31, gripper shoe 33 is vertical with fixing plate 31, and gripper shoe 33 is arranged with pivoting support 1 centerline axis parallel. It is additionally provided with one piece of installing plate 34 between two blocks of fixing plates 31, installing plate 34 is vertical with fixing plate 31, and installing plate 34 and revolving support 1 central axis upright, installing plate 34 is provided with installing hole 35, a reductor 4 it is fixed with in installing hole 35, connecting a driving gear 5 by spline is fixing on the output shaft of reductor 4, drive gear 5 and revolving support 1 inner circle phase meshing, therefore the inner ring of revolving support 1 can rotate under reductor 4 drives.
The circumference of swivel mount 2 is fixed a limited block 7, a limiting plate 6 fixed by one fixing plate 31 of link 3, limiting plate 6 end extends to the top of swivel mount 2, limited block 7 top distance from revolving support 1 central axis is more than limiting plate 6 lower end distance from revolving support 1 central axis, namely limiting plate 6 is arranged on the movement locus that limited block 7 rotates with swivel mount 2, therefore all can collide with limiting plate 6 both sides in the beginning and end rotated and interfere and stop operating when limited block 7 rotates with swivel mount 2, therefore the rotation of swivel mount 360 degree is changed into the close �� rotation (rotation making swivel mount 2 because of limiting plate 6 width can only be can not reach 180 degree close to 180 degree) of 180 degree by the combination of limiting plate 6 and limited block 7, the oil transportation rubber tube that one end is fixed on development machine working arm one end and is fixed on the development machine at rotating mechanism rear will not be wrapped on working arm because of the rotation of working arm. the both sides that limiting plate 6 is interferenceed with limited block 7 are each provided with the groove 8 matched with limited block 7, it is provided with yielding rubber bottom groove 8, the alleviation swivel mount 2 that arranges of yielding rubber forwards limited block 7 and the collision of limiting plate 6 during extreme position to, reduces noise, extends the service life of each parts.
Claims (6)
1. the rotating mechanism of a working arm of excavating machine, it is characterized in that: include revolving support (1), revolving support (1) inner ring is bolted one for fixing the swivel mount (2) of working arm, described swivel mount (2) is arranged on revolving support (1) front, revolving support (1) outer ring is bolted one for fixing the link (3) being connected with excavator base machine, described link (3) is arranged on revolving support (1) rear, link (3) is further fixed on a reductor (4), by driving, gear (5) and revolving support (1) inner ring are fixing to be connected reductor (4) output shaft,
Described swivel mount (2) circumference is fixed a limited block (7), described link (3) is fixedly installed limiting plate (6), described limiting plate (6) end extends to swivel mount (2) top, and limiting plate (6) is arranged on the movement locus that limited block (7) rotates with swivel mount (2).
2. the rotating mechanism of a kind of working arm of excavating machine according to claim 1, it is characterised in that: described limiting plate (6) both sides are each provided with the groove (8) matched with limited block (7), and groove (8) bottom is provided with yielding rubber.
3. the rotating mechanism of a kind of working arm of excavating machine according to claim 1, it is characterised in that: described limited block (7) top distance from revolving support (1) central axis is more than limiting plate (6) lower end distance from revolving support (1) central axis.
4. the rotating mechanism of a kind of working arm of excavating machine according to claim 1, it is characterised in that: described driving gear (5) and reductor (4) output shaft are connected by spline, drive gear (5) and revolving support (1) inner circle phase meshing.
5. the rotating mechanism of a kind of working arm of excavating machine according to claim 1, it is characterized in that: described link (3) includes the two pieces of fixing plates (31) be arrangeding in parallel up and down, two pieces of fixing plates (31) are connected each through bolt and pivoting support (1) outer ring are fixing, fixing plate (31) is provided with for fixing the fixing hole (32) being connected with excavator, being provided with two pieces of gripper shoes be arrangeding in parallel (33) between two pieces of fixing plates (31), described gripper shoe (33) is vertical with fixing plate (31) and revolving support (1) centerline axis parallel is arranged.
6. the rotating mechanism of a kind of working arm of excavating machine according to claim 5, it is characterized in that: between the described two pieces of fixing plates (31) arranged up and down, be additionally provided with that one piece vertical with fixing plate (31) and the installing plate (34) of revolving support (1) central axis upright, being provided with the installing hole (35) for fixing reductor (4) fuselage on described installing plate (34), reductor (4) and installing plate (34) are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117769.8U CN205296266U (en) | 2015-12-30 | 2015-12-30 | Rotary mechanism of excavator work arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117769.8U CN205296266U (en) | 2015-12-30 | 2015-12-30 | Rotary mechanism of excavator work arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205296266U true CN205296266U (en) | 2016-06-08 |
Family
ID=56474472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521117769.8U Expired - Fee Related CN205296266U (en) | 2015-12-30 | 2015-12-30 | Rotary mechanism of excavator work arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205296266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442655A (en) * | 2015-12-30 | 2016-03-30 | 石家庄煤矿机械有限责任公司 | Rotating mechanism for working arm of excavator |
-
2015
- 2015-12-30 CN CN201521117769.8U patent/CN205296266U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442655A (en) * | 2015-12-30 | 2016-03-30 | 石家庄煤矿机械有限责任公司 | Rotating mechanism for working arm of excavator |
| CN105442655B (en) * | 2015-12-30 | 2018-09-18 | 石家庄煤矿机械有限责任公司 | A kind of rotating mechanism of working arm of excavating machine |
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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: 20160608 Termination date: 20171230 |