CN201653731U - Eccentric load-bearing capability testing device of coal-mining machine rocker - Google Patents
Eccentric load-bearing capability testing device of coal-mining machine rocker Download PDFInfo
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- CN201653731U CN201653731U CN201020175609XU CN201020175609U CN201653731U CN 201653731 U CN201653731 U CN 201653731U CN 201020175609X U CN201020175609X U CN 201020175609XU CN 201020175609 U CN201020175609 U CN 201020175609U CN 201653731 U CN201653731 U CN 201653731U
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- rocking arm
- unbalance loading
- charger
- rocker
- mining machine
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Abstract
The utility model relates to the field of coal-mining machines, in particular to an eccentric load-bearing capability testing device of a coal-mining machine rocker. The device is provided with a rocker, a rocker rotating disk, a rocker swinging device, a rocker torque loading device and a rocker eccentric-load loading device, wherein one end of the rocker is connected with a rocker shell, the other end of the rocker is connected with the rocker swinging device, the rocker rotating disk is connected with a square head, and the rocker torque loading device and the rocker eccentric-load loading device are arranged at the outer side of the rocker rotating disk. The utility model solves the problems of floating seal of a cutting head, failure and damage of a dustproof ring and the like of the coal-mining machine rocker in an eccentric load state in the prior art and can obtain the simultaneously eccentric load-bearing cavity of the coal-mining machine rocker bearing torque at the position of a cutting roller by applying certain torque to the position of the cutting roller and applying a certain simulated eccentric load to the position of the cutting roller.
Description
Technical field
The utility model relates to the coalcutter field, and a kind of rocker arm of coal mining machine in concrete side bears unbalance loading ability test device.
Background technology
Rocker arm of coal mining machine is when the cut rib, and the square toes that are connected with cutting drum are except that being subjected to than also being subjected to bigger unbalance loading the high pulling torque.Especially suffered unbalance loading is bigger when coalcutter is cut sth. askew feed.If design or assemble improperly when being subjected to big unbalance loading, can cause the floating seal between revolution square toes and the stationary housings, the destruction of dust seal, the gummed that serious causing turned round between square toes and stationary housings destroys.
The utility model content
The purpose of this utility model is to provide a kind of rocker arm of coal mining machine to bear unbalance loading ability test device, solves the problems such as gummed destruction between floating seal, dust seal destruction or square toes and the stationary housings that exists in the prior art.By applying predetermined pressure, can obtain the ability that rocker arm of coal mining machine bears unbalance loading at rocking arm rotary disk eccentric position.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of rocker arm of coal mining machine bears unbalance loading ability test device, this device is provided with rocking arm, rocking arm rotary disk, rocking arm pendulous device, rocking arm moment of torsion charger, rocking arm unbalance loading charger; an end of rocking arm is connected with the rocking arm housing; the other end of rocking arm connects the rocking arm pendulous device; the rocking arm rotary disk is connected with square toes, is provided with rocking arm moment of torsion charger and rocking arm unbalance loading charger in the outside of rocking arm rotary disk.
Described rocker arm of coal mining machine bears unbalance loading ability test device, and the rocking arm pendulous device is provided with the rocking arm oscillating oil cylinder, and the cylinder bar of rocking arm oscillating oil cylinder is connected by bearing pin with rocking arm.
Described rocker arm of coal mining machine bears unbalance loading ability test device; rocking arm unbalance loading charger is provided with self-aligning roller bearing, eccentric load bar and eccentric load cylinder; an end of eccentric load bar and the cylinder bar of eccentric load cylinder are hinged, and the other end and the self-aligning roller bearing of eccentric load bar are hinged.
Described rocker arm of coal mining machine bears unbalance loading ability test device, on the rocking arm unbalance loading charger linear motion device is installed, and the rectilinear motion bar and the eccentric load cylinder of linear motion device are hinged, and the head of rectilinear motion bar is installed self-aligning roller bearing.
Described rocker arm of coal mining machine bears unbalance loading ability test device, and rocking arm unbalance loading charger is provided with the eccentric charger base that can heighten, and an end of eccentric load cylinder and eccentric charger base are hinged.
Described rocker arm of coal mining machine bears unbalance loading ability test device, and eccentric charger base is provided with matching used leading screw and the self-locking nut heightened.
Described rocker arm of coal mining machine bears unbalance loading ability test device, and rocking arm moment of torsion charger is provided with dynamometer machine, speed-increasing gear, and the low speed axle head of speed-increasing gear connects the rocking arm rotary disk, and the high speed axle head of speed-increasing gear connects dynamometer machine.
Described rocker arm of coal mining machine bears unbalance loading ability test device; the core of rocking arm rotary disk outer end connects an end of speed-increasing gear mounting flange by cross universal coupling II; the other end of speed-increasing gear mounting flange connects the slow-speed shaft of speed-increasing gear; dynamometer machine is connected with the high speed shaft of speed-increasing gear by the dynamometer machine mounting flange, is connected by cross universal coupling I between the input end of dynamometer machine and dynamometer machine mounting flange.
Described rocker arm of coal mining machine bears unbalance loading ability test device, and rocking arm moment of torsion charger is provided with adjustable high-base.
Described rocker arm of coal mining machine bears unbalance loading ability test device, and the rocking arm oscillating oil cylinder is connected with hydraulic power unit, and eccentric load cylinder is connected with hydraulic power unit.
The beneficial effects of the utility model are:
1, adopts the utility model in process of the test,, can obtain the ability that rocker arm of coal mining machine bears unbalance loading easily by applying predetermined pressure at rocking arm rotary disk eccentric position.
2, the utility model is provided with speed-increasing gear, drives the rocking arm rotary disk during rocking arm revolution and loads moment of torsion by dynamometer machine.In the prior art; the rocking arm motor speed becomes lower behind multi-stage speed-reducing; directly load difficult the realization; and by after the speed-increasing gear speedup; output speed is increased; reduce moment of torsion simultaneously, can realize that with general loading method (as adopting water conservancy dynamometer machine, electric eddy current dynamometer, electric dynamometer) moment of torsion loads.
3, the utility model moment of torsion charger is connected with Hooks coupling universal coupling between rocking arm rotary disk and speed-increasing gear slow-speed shaft, easy to connect.
4, the utility model rocking arm pendulous device by the telescopic oscillating oil cylinder, can conveniently be adjusted the rocking arm pendulum angle, can simulate all rocking arm swing operating modes.
5, the utility model rocking arm unbalance loading charger by flexible eccentric load cylinder, can carry out off-centre to square toes easily and load, and can simulate all eccentric loading conditions.By be installed on the eccentric load cylinder tensimeter and afterburning eccentric distance can calculate the size that applies eccentric force and the size of eccentric bending moment.
6, the utility model rocking arm unbalance loading charger is installed adjustable high-base.Heighten and heighten leading screw and self-locking nut on the base, can conveniently heighten and lock.Heighten by heightening base, make eccentric load cylinder center adjustable continuously.
7, the utility model rocking arm unbalance loading charger is installed linear motion device, guarantees can not cause the rotation of eccentric load bar because of the rotation of rocking arm rotary disk when loading.
8, the utility model rocking arm unbalance loading charger, the eccentric load bar head of linear motion device is installed self-aligning roller bearing, guarantees that additional friction power is less when loading.
Description of drawings
Fig. 1-Fig. 2 is a rocking arm square toes structural representation in the prior art.Wherein, Fig. 1 is a front view; Fig. 2 is the upward view of Fig. 1.
Fig. 3-Fig. 4 is the utility model structural representation.Wherein, Fig. 3 is front view (the A-A cut-open view of Fig. 4); Fig. 4 is the B-B cut-open view of Fig. 3.
Among the figure, 1 rocking arm housing; 2 floating seals; 3 dust seals; 4 cutting drum fastening bolts; 5 square toes; 6 rocking arm pendulous device bases; 7 rocking arm oscillating oil cylinders; 8 rocking arms; 9 rocking arm rotary disks; 10 self-aligning roller bearings; 11 eccentric load bars; 12 dive keys; 13 eccentric charger bases; 14 eccentric load cylinders; 15 dynamometer machines; 16 cross universal coupling I; 17 dynamometer machine mounting flanges; 18 speed-increasing gears; 19 speed-increasing gear mounting flanges; 20 cross universal coupling II; 21 bearing pins; 22 rectilinear motion bars.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Shown in Fig. 1-2, rocking arm square toes structure mainly comprises in the prior art: rocking arm housing 1, floating seal 2, dust seal 3, cylinder fastening bolt 4, square toes 5 etc.; rocking arm housing 1 connects square toes 5, is provided with floating seal 2 and dust seal 3 between rocking arm housing 1 and square toes 5.
Shown in Fig. 1-4, the utility model rocker arm of coal mining machine bears unbalance loading ability test device, this device is provided with rocking arm 8, rocking arm rotary disk 9, rocking arm pendulous device, rocking arm moment of torsion charger, rocking arm unbalance loading charger; an end of rocking arm 8 is connected with an end of the rocking arm housing 1 of rocking arm square toes structure; the other end of rocking arm 8 connects the rocking arm pendulous device; rocking arm rotary disk 9 is connected with the square toes 5 of the rocking arm square toes structure that is installed on rocking arm housing 1 other end, is provided with rocking arm moment of torsion charger and rocking arm unbalance loading charger in the outside of rocking arm rotary disk 9.
As shown in Figure 3-4, the utility model mainly by: rocking arm pendulous device base 6, rocking arm oscillating oil cylinder 7, rocking arm 8, rocking arm rotary disk 9, self-aligning roller bearing 10, eccentric load bar 11, dive key 12, eccentric charger base 13, eccentric load cylinder 14, dynamometer machine 15, cross universal coupling I16, dynamometer machine mounting flange 17, speed-increasing gear 18, speed-increasing gear mounting flange 19 and cross universal coupling II 20 form, and concrete structure is as follows:
The rocking arm pendulous device comprises rocking arm pendulous device base 6, rocking arm oscillating oil cylinder 7, and the pin shaft hole that is connected with the traction case is arranged on the rocking arm 8, and bearing pin 21 passes this hole and rocking arm pendulous device base 6 links together.The pin shaft hole that is connected with rocking arm oscillating oil cylinder 7 is arranged on the rocking arm 8, and the cylinder bar that bearing pin passes this hole and rocking arm oscillating oil cylinder 7 links together.By stretching of rocking arm oscillating oil cylinder 7, rocking arm 8 is swung to any working position.
Rocking arm rotary disk 9 is installed in square toes 5 outer ends, by cutting drum fastening bolt 4 rocking arm rotary disk 9 and square toes 5 is tightened together, and is used for substituting the rocking arm rotary disk of actual cutting drum.
Rocking arm unbalance loading charger comprises self-aligning roller bearing 10, eccentric load bar 11, dive key 12, eccentric charger base 13, eccentric load cylinder 14, one end and the eccentric charger base 13 of eccentric load cylinder 14 are hinged, one end of eccentric load bar 11 and the cylinder bar of eccentric load cylinder 14 are hinged, and the other end of eccentric load bar 11 and self-aligning roller bearing 10 are hinged.On the eccentric load bar 11 dive key 12 is housed, dive key 12 guarantees that eccentric load bar 11 can only rectilinear motion.Self-aligning roller bearing 10 is positioned at the position that the center of circle is departed from rocking arm rotary disk 9 outer ends, and during rotation, self-aligning roller bearing 10 closely contacts and rotates with rocking arm rotary disk 9, guarantees that eccentric loading force is vertical with card.
In the utility model, on the rocking arm unbalance loading charger linear motion device is installed, the rectilinear motion bar 22 and the eccentric load cylinder 14 of linear motion device are hinged, and the head of rectilinear motion bar 22 is installed self-aligning roller bearing 10.
Rocking arm unbalance loading charger has the eccentric charger base 13 that can heighten, eccentric charger base 13 is provided with heightens leading screw and self-locking nut, can conveniently heighten, eccentric charger base 13 can arbitrarily be heightened in rocking arm rotary disk motion altitude range, eccentric load cylinder 14 center lines and rocking arm 8 centre of gyration lines are on the same surface level, and will heighten leading screw with self-locking nut and be locked.
Rocking arm moment of torsion charger comprises dynamometer machine 15, cross universal coupling I16, dynamometer machine mounting flange 17, speed-increasing gear 18, speed-increasing gear mounting flange 19 and cross universal coupling II 20; core of rocking arm rotary disk 9 outer ends connects an end of speed-increasing gear mounting flanges 19 by cross universal coupling II 20; other end of speed-increasing gear mounting flange 19 connects the slow-speed shaft of speed-increasing gear 18; dynamometer machine 15 is connected with the high speed shaft of speed-increasing gear 18 by dynamometer machine mounting flange 17 are connected by cross universal coupling I16 between the input end of dynamometer machine 15 and dynamometer machine mounting flange 17.
In the utility model, rocking arm moment of torsion charger has adjustable high-base, can arbitrarily heighten and be locked in rocking arm rotary disk motion altitude range.
In the utility model, rocking arm oscillating oil cylinder 7 is connected with hydraulic power unit, and eccentric load cylinder 14 also is connected with hydraulic power unit.
The course of work of the present utility model is as follows:
(1) passes through the flexible of rocking arm oscillating oil cylinder 7, rocking arm rotary disk 9 is swung to the optional position that needs test.
(2) heighten leading screw and self-locking nut by adjustment, eccentric load cylinder 14 center lines and rocking arm 8 centre of gyration lines are on the same surface level, and will heighten leading screw locking with self-locking nut.Have slotted hole on the eccentric charger base 13, by adjusting to precalculated position and bolt location about this slotted hole.
(3) rocking arm 8 electrical powers, 9 rotations of rocking arm rotary disk.Dynamometer machine 15 is loaded on ratings with moment of torsion gradually.Load by zero load 1 hour, 25% load 1 hour, 50% load 1 hour, 75% load 1 hour, 100% load 0.5 hour, totally 4.5 hours.
(4) when moment of torsion loaded, the cylinder rod of eccentric load cylinder 14 stretched out, self-aligning roller bearing 10 contact rocking arm rotary disks 9, and by the 9 drive rotations of rocking arm rotary disk.Increase the oil pressure on the cylinder rod of eccentric load cylinder 14 gradually, eccentric loading force is increased to predetermined value.
(5) contact rocking arm rotary disk 9 rotates, and presses (3), (4) loading after 4.5 hours, eccentric load cylinder 14 cylinder rods withdrawal, and whether observe square toes 5 has lubricating oil to spill with 1 sealing place of rocking arm housing.If unlubricated oil leakage goes out, then to bear the unbalance loading ability qualified for this rocking arm 8.
Claims (10)
1. a rocker arm of coal mining machine bears unbalance loading ability test device, it is characterized in that: this device is provided with rocking arm, rocking arm rotary disk, rocking arm pendulous device, rocking arm moment of torsion charger, rocking arm unbalance loading charger; an end of rocking arm is connected with the rocking arm housing; the other end of rocking arm connects the rocking arm pendulous device; the rocking arm rotary disk is connected with square toes, is provided with rocking arm moment of torsion charger and rocking arm unbalance loading charger in the outside of rocking arm rotary disk.
2. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 1, it is characterized in that: the rocking arm pendulous device is provided with the rocking arm oscillating oil cylinder, and the cylinder bar of rocking arm oscillating oil cylinder is connected by bearing pin with rocking arm.
3. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 1, it is characterized in that: rocking arm unbalance loading charger is provided with self-aligning roller bearing, eccentric load bar and eccentric load cylinder, one end of eccentric load bar and the cylinder bar of eccentric load cylinder are hinged, and the other end and the self-aligning roller bearing of eccentric load bar are hinged.
4. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 3, it is characterized in that: on the rocking arm unbalance loading charger linear motion device is installed, the rectilinear motion bar and the eccentric load cylinder of linear motion device are hinged, and the head of rectilinear motion bar is installed self-aligning roller bearing.
5. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 3, it is characterized in that: rocking arm unbalance loading charger is provided with the eccentric charger base that can heighten, and an end of eccentric load cylinder and eccentric charger base are hinged.
6. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 5, it is characterized in that: eccentric charger base is provided with matching used leading screw and the self-locking nut heightened.
7. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 1, it is characterized in that: rocking arm moment of torsion charger is provided with dynamometer machine, speed-increasing gear, and the low speed axle head of speed-increasing gear connects the rocking arm rotary disk, and the high speed axle head of speed-increasing gear connects dynamometer machine.
8. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 7, it is characterized in that: the core of rocking arm rotary disk outer end connects an end of speed-increasing gear mounting flange by cross universal coupling II, the other end of speed-increasing gear mounting flange connects the slow-speed shaft of speed-increasing gear, dynamometer machine is connected with the high speed shaft of speed-increasing gear by the dynamometer machine mounting flange, is connected by cross universal coupling I between the input end of dynamometer machine and dynamometer machine mounting flange.
9. bear unbalance loading ability test device according to the described rocker arm of coal mining machine of claim 1, it is characterized in that: rocking arm moment of torsion charger is provided with adjustable high-base.
10. bear unbalance loading ability test device according to claim 1 or 3 described rocker arm of coal mining machine, it is characterized in that: the rocking arm oscillating oil cylinder is connected with hydraulic power unit, and eccentric load cylinder is connected with hydraulic power unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020175609XU CN201653731U (en) | 2010-04-30 | 2010-04-30 | Eccentric load-bearing capability testing device of coal-mining machine rocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020175609XU CN201653731U (en) | 2010-04-30 | 2010-04-30 | Eccentric load-bearing capability testing device of coal-mining machine rocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653731U true CN201653731U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020175609XU Expired - Fee Related CN201653731U (en) | 2010-04-30 | 2010-04-30 | Eccentric load-bearing capability testing device of coal-mining machine rocker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653731U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143582A (en) * | 2017-06-07 | 2017-09-08 | 西安煤矿机械有限公司 | Self-aligning roller bearing installation method in rocker arm of coal mining machine |
| CN112345227A (en) * | 2020-11-10 | 2021-02-09 | 长春理工大学 | Testing machine for detecting performance of turret seat ring |
| CN113567167A (en) * | 2021-07-28 | 2021-10-29 | 西安煤矿机械有限公司 | Method for testing rocker arm of coal mining machine with ultra-large mining height |
| CN114112470A (en) * | 2021-11-30 | 2022-03-01 | 上海煤科检测技术有限公司 | Control system and method for satisfying loading of rocker arms of various types of coal mining machines |
-
2010
- 2010-04-30 CN CN201020175609XU patent/CN201653731U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143582A (en) * | 2017-06-07 | 2017-09-08 | 西安煤矿机械有限公司 | Self-aligning roller bearing installation method in rocker arm of coal mining machine |
| CN112345227A (en) * | 2020-11-10 | 2021-02-09 | 长春理工大学 | Testing machine for detecting performance of turret seat ring |
| CN113567167A (en) * | 2021-07-28 | 2021-10-29 | 西安煤矿机械有限公司 | Method for testing rocker arm of coal mining machine with ultra-large mining height |
| CN113567167B (en) * | 2021-07-28 | 2024-01-26 | 西安煤矿机械有限公司 | Method for testing rocker arm of ultra-large mining height coal mining machine |
| CN114112470A (en) * | 2021-11-30 | 2022-03-01 | 上海煤科检测技术有限公司 | Control system and method for satisfying loading of rocker arms of various types of coal mining machines |
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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 |
Granted publication date: 20101124 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |