CN203175558U - Torque protection mechanism of continuous miner cutting speed reducer - Google Patents
Torque protection mechanism of continuous miner cutting speed reducer Download PDFInfo
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- CN203175558U CN203175558U CN 201320093823 CN201320093823U CN203175558U CN 203175558 U CN203175558 U CN 203175558U CN 201320093823 CN201320093823 CN 201320093823 CN 201320093823 U CN201320093823 U CN 201320093823U CN 203175558 U CN203175558 U CN 203175558U
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- limit square
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Abstract
The utility model relates to a torque protection mechanism of a continuous miner cutting speed reducer. The torque protection mechanism is composed of a cutting motor, a friction torque limiter, a torque shaft and a cutting speed reducer, and is characterized in that a rotor shaft of the cutting motor is a hollow shaft and is internally provided with the torque shaft; the output end of the rotor shaft is connected with an input device of the friction torque limiter through an external spline; one end of the torque shaft is connected with an output device of the friction torque limiter through an external spline; and the other end of the torque shaft is connected with the input end of the cutting speed reducer through an external spline.
Description
Technical field
The utility model relates to a kind of force moment protection mechanism, is specially a kind of continuous miner cut reductor force moment protection mechanism.
Background technology
In the cut coal petrography process of continuous miner down-hole; to often cause the cut reductor moment clamping stagnation or of short duration shutdown to occur from the shock loading of coal bed texture; cutting motor can directly cause the damage of cut reductor or other drive disk assembly because of the inertia torque of clamping stagnation generation and the electromagnetic torque stack of output at this moment.At present; engineers and technicians attempt by torque limited safety axle is set; the over current of motor protection; methods such as installation yielding coupling are prevented this destructive shock loading; but be not sufficient to protect fully continuous miner to avoid the destruction of shock loading; this is because moment of torsion safety axle the fatigue strength reduction can occur after using a period of time; over current of motor protective reaction time-lag is destroyed the used time in shock loading; yielding coupling only can be eliminated the influence of malalignment and vibration; and change this type of protective device and also can cause very long downtime, greatly reduce the operating efficiency of equipment.
The utility model content
The utility model purpose is: exist when absorbing shock loading at existing continuous miner cut reductor force moment protection mechanism, a kind of new continuous miner cut reductor force moment protection mechanism is provided.
The purpose of this utility model is achieved in that a kind of continuous miner cut reductor force moment protection mechanism; comprise cutting motor, friction limit square device, torque axis and cut reductor; it is characterized in that: the armature spindle of cutting motor is hollow shaft; be provided with a torque axis in the armature spindle; the output of armature spindle is connected by the input unit of external splines with friction limit square device; one end of torque axis is connected by the output device of external splines with friction limit square device, and the other end of torque axis is connected by the input of external splines with the cut reductor.
In the utility model: described friction limit square device comprises input unit, output device, interior friction plate, outside friction disc, pressure plare and spring assembly, wherein, the internal spline that input unit is provided with the input internal spline and is connected with outside friction disc, the external splines that output device is provided with the output internal spline and is connected with interior friction plate, the alternate setting with outside friction disc of interior friction plate and the spline by separately are connected with input unit with corresponding output device, the pressure plare periphery is fixedlyed connected with input unit by connecting bolt, and spring assembly relies on input unit that interior friction plate and the outside friction disc of alternate setting are exerted pressure.
In the utility model: the input unit of friction limit square device uses round nut and stop washer fastening with after the output of armature spindle docks by external splines again; Be provided with stopper slot in the output device of friction limit square device, be provided with the circlip for hole of coupling in the stopper slot, described torque axis is limited in the output device by circlip for hole.
Advantage of the present utility model is: friction limit square device can also keep continuing and exporting constant moment of torsion when absorbing shock loading protection equipment, and the equipment that makes still can impregnable operate as normal.In addition, after the moment of torsion of friction limit square device limits by spring assembly, can not change easily, need not any extra shutdown and safeguard, improve the operating efficiency of equipment greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is a kind of friction limit square device structure chart that the utility model relates to.
Among the figure: 1, cutting motor, 2, friction limit square device, 3, torque axis, 4, cut reductor, 5, round nut, 6, stop washer, 7, circlip for hole, 8, input unit, 9, spring assembly, 10, pressure plare, 11, output device, 12, armature spindle, 13, interior friction plate, 14, outside friction disc, 15, bolt.
The specific embodiment
Accompanying drawing discloses the concrete structure of a kind of embodiment of the utility model without limitation, and the utility model will be further described below in conjunction with accompanying drawing.
As seen from Figure 1, the utility model comprises cutting motor 1, friction limit square device 2, torque axis 3 and cut reductor 4, it is characterized in that: the armature spindle 12 of cutting motor 1 is hollow shaft, be provided with a torque axis 3 in the armature spindle 12, the output of armature spindle 12 is connected by the input unit 8 of external splines with friction limit square device 2, the input unit 8 of friction limit square device 2 uses round nut 5 and stop washer 6 fastening with after the output of armature spindle 12 docks by external splines again.One end of torque axis 3 is connected by the output device 11 of external splines with friction limit square device 2, the other end of torque axis 3 is connected by the input of external splines with cut reductor 4, be provided with stopper slot in the output device 11 of friction limit square device 2, be provided with the circlip for hole 7 of coupling in the stopper slot, described torque axis 3 is limited in the output device 11 by circlip for hole 7.
Fig. 2 as seen, friction limit square device 2 comprises input unit 8, output device 11, interior friction plate 13, outside friction disc 14, pressure plare 10 and spring assembly 9, wherein, the internal spline that input unit 8 is provided with the input internal spline and is connected with outside friction disc 14, the external splines that output device 11 is provided with the output internal spline and is connected with interior friction plate 13, interior friction plate 13 and outside friction disc 14 alternate settings, interior friction plate 13 is connected with output device 11 by the spline of coupling, outside friction disc 14 is connected with input unit 8 by the spline of coupling, pressure plare 10 peripheries are fixedlyed connected with input unit 8 by connecting bolt 15, and spring assembly 9 relies on interior friction plate 13 and the outside friction disc 14 of 8 pairs of alternate settings of input unit to exert pressure.
In cut reductor 4 is operated in the rated moment scope, the frictional force that spring assembly 9 applied pressures form at interior friction plate 13 and outside friction disc 14 is more than or equal to rated moment, can satisfy the requirement of carry-over moment, friction limit square device 2 passes to torque axis 3 with the rotating speed of armature spindle 12.When cut reductor 4 is operated in when exceeding the quata to decide the moment scope, the frictional force that spring assembly 9 applied pressures form at interior friction plate 13 and outside friction disc 14 is less than work moment, interior friction plate 13 and outside friction disc 14 skid, friction limit square device 2 can only pass to torque axis 3 with the part rotating speed of armature spindle 12, may cause can not transmitting fully when serious.
Claims (3)
1. continuous miner cut reductor force moment protection mechanism; comprise cutting motor, friction limit square device, torque axis and cut reductor; it is characterized in that: the armature spindle of cutting motor is hollow shaft; be provided with a torque axis in the armature spindle; the output of armature spindle is connected by the input unit of external splines with friction limit square device; one end of torque axis is connected by the output device of external splines with friction limit square device, and the other end of torque axis is connected by the input of external splines with the cut reductor.
2. continuous miner cut reductor force moment protection according to claim 1 mechanism; it is characterized in that: described friction limit square device comprises input unit; output device; interior friction plate; outside friction disc; pressure plare and spring assembly; wherein; the internal spline that input unit is provided with the input internal spline and is connected with outside friction disc; the external splines that output device is provided with the output internal spline and is connected with interior friction plate; the alternate setting with outside friction disc of interior friction plate and the spline by separately are connected with input unit with corresponding output device; the pressure plare periphery is fixedlyed connected with input unit by connecting bolt, and spring assembly relies on input unit that interior friction plate and the outside friction disc of alternate setting are exerted pressure.
3. continuous miner cut reductor force moment protection according to claim 1 and 2 mechanism is characterized in that: the input unit of friction limit square device uses round nut and stop washer fastening with after the output of armature spindle docks by external splines again; Be provided with stopper slot in the output device of friction limit square device, be provided with the circlip for hole of coupling in the stopper slot, described torque axis is limited in the output device by circlip for hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320093823 CN203175558U (en) | 2013-03-01 | 2013-03-01 | Torque protection mechanism of continuous miner cutting speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320093823 CN203175558U (en) | 2013-03-01 | 2013-03-01 | Torque protection mechanism of continuous miner cutting speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175558U true CN203175558U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320093823 Expired - Fee Related CN203175558U (en) | 2013-03-01 | 2013-03-01 | Torque protection mechanism of continuous miner cutting speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422774A (en) * | 2015-11-23 | 2016-03-23 | 中国矿业大学 | Overload protecting device for transmission element of cutting part of coal mining machine |
| CN108612822A (en) * | 2018-04-16 | 2018-10-02 | 山西煤矿机械制造股份有限公司 | Distance-limiting type retarder |
-
2013
- 2013-03-01 CN CN 201320093823 patent/CN203175558U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422774A (en) * | 2015-11-23 | 2016-03-23 | 中国矿业大学 | Overload protecting device for transmission element of cutting part of coal mining machine |
| CN108612822A (en) * | 2018-04-16 | 2018-10-02 | 山西煤矿机械制造股份有限公司 | Distance-limiting type retarder |
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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: 20130904 Termination date: 20180301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |