CN210392561U - Gear engagement device for chain tensioner - Google Patents
Gear engagement device for chain tensioner Download PDFInfo
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- CN210392561U CN210392561U CN201921172807.8U CN201921172807U CN210392561U CN 210392561 U CN210392561 U CN 210392561U CN 201921172807 U CN201921172807 U CN 201921172807U CN 210392561 U CN210392561 U CN 210392561U
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Abstract
The utility model belongs to the field of machinery, and relates to a gear meshing device for a chain tightener, which comprises a frame, a triangular rotating frame, a meshing gear, an eccentric wheel rotating groove and an eccentric wheel; the meshing gear is arranged on the triangular rotating frame and is parallel to the plane of the triangular rotating frame; an eccentric wheel rotating groove is formed in the triangular rotating frame, and an eccentric wheel capable of rotating in the eccentric wheel rotating groove is arranged in the eccentric wheel rotating groove; one side of the triangular rotating frame is connected with the rack through a pin shaft, and the other side of the triangular rotating frame is connected with the rack through an eccentric wheel; when the eccentric wheel rotates in the eccentric wheel rotating groove, the triangular rotating frame is driven to rotate around the axial direction of the pin shaft; the triangular rotating frame drives the meshing gear to perform lifting motion when rotating around the axial direction of the pin shaft. The utility model provides a tight chain utensils gear engagement device convenient to meshing and separation and convenient operation.
Description
Technical Field
The utility model belongs to the field of machinery, a hydraulic pressure chain tightener is related to, especially, relate to a gear engagement device for chain tightener.
Technical Field
At present, fully mechanized coal mining is mostly adopted in underground coal mines, and a scraper conveyor and a reversed loader are one of indispensable transportation devices. The scraper chain is fully operated by the scraper chain, the scraper chain can be extended due to plastic deformation of load and self characteristics after long-time operation, the working efficiency is influenced and faults are generated due to overlong length of the chain, and redundant chain rings are required to be removed after the chain reaches a certain length. For a high-power scraper conveying and reversed loader, a hydraulic chain tightener is required to be arranged at the input end of the speed reducer, and the chain tightener is matched with the chain stopper to complete the cutting-out work of redundant chains, so that the chains with proper length are formed. The high-power coal mine scraper conveyor mostly adopts a hydraulic motor to tighten the chain, the existing chain tightener comprises a simple chain tightener with an upper and lower structure and a clutch type chain tightener, although the problem of small axial space is solved by a gear box with the simple upper and lower structure, the chain tightener is in an open state when the scraper conveyor normally works, dust, coal blocks and other impurities easily enter a cover cylinder in the coal mining process, and the running safety of internal equipment is seriously influenced; the axial size of the clutch type chain tightener is large, so that the axial size of the cover cylinder is limited, and the service life of the speed reducer, the motor and the intermediate transmission protection device is seriously influenced by the overlarge size of the cover cylinder. In addition, no matter the clutch type chain tightener or the chain tightener with a simple up-down structure, the output gear of the chain tightener is difficult to be meshed with and separated from the large gear, and the teeth or other safety risk factors are easy to be touched.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem existing in the background art, the utility model provides a chain tensioner gear engagement device convenient to meshing and separation and convenient operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a gear engagement device for a chain tensioner is characterized in that: the gear meshing device for the chain tightener comprises a rack, a triangular rotating frame, a meshing gear, an eccentric wheel rotating groove and an eccentric wheel; the meshing gear is arranged on the triangular rotating frame and is parallel to the plane of the triangular rotating frame; an eccentric wheel rotating groove is formed in the triangular rotating frame, and an eccentric wheel capable of rotating in the eccentric wheel rotating groove is arranged in the eccentric wheel rotating groove; one side of the triangular rotating frame is connected with the rack through a pin shaft, and the other side of the triangular rotating frame is connected with the rack through an eccentric wheel; when the eccentric wheel rotates in the eccentric wheel rotating groove, the triangular rotating frame is driven to rotate around the axial direction of the pin shaft; and the triangular rotating frame drives the meshing gear to perform lifting motion when rotating around the axial direction of the pin shaft.
The meshing gear comprises an input wheel and an idle wheel meshed with the input wheel; when the triangular rotating frame rotates around the axial direction of the pin shaft, the input wheel drives the idle wheel to perform lifting motion.
The triangular rotating frame is provided with an input wheel rotating shaft and an idler wheel rotating shaft; the input wheel is arranged on the input wheel rotating shaft and can rotate around the axial direction of the input wheel rotating shaft; the idler wheel is arranged on the idler wheel rotating shaft and can rotate around the axial direction of the idler wheel rotating shaft.
The eccentric wheel rotating groove is waist-shaped as a whole.
The gear engagement device for the chain tightener further comprises a rotating handle connected with the eccentric wheel and used for driving the eccentric wheel to rotate.
The gear engagement device for the chain tensioner further comprises a housing disposed outside the frame.
The gear engagement device for the chain tensioner further comprises a hydraulic motor connected with the input wheel.
The utility model has the advantages that:
the utility model provides a gear meshing device for a chain tightener, which comprises a frame, a triangular rotating frame, a meshing gear, an eccentric wheel rotating groove and an eccentric wheel; the meshing gear is arranged on the triangular rotating frame and is parallel to the plane of the triangular rotating frame; an eccentric wheel rotating groove is formed in the triangular rotating frame, and an eccentric wheel capable of rotating in the eccentric wheel rotating groove is arranged in the eccentric wheel rotating groove; one side of the triangular rotating frame is connected with the rack through a pin shaft, and the other side of the triangular rotating frame is connected with the rack through an eccentric wheel; when the eccentric wheel rotates in the eccentric wheel rotating groove, the triangular rotating frame is driven to rotate around the axial direction of the pin shaft; the triangular rotating frame drives the meshing gear to perform lifting motion when rotating around the axial direction of the pin shaft. The utility model provides a tight chain utensils gear engagement device has solved gear engagement and separation difficulty problem to can reduce cover section of thick bamboo axial dimensions design scheme. At first the utility model discloses a chain tightening device adopts unique design's triangle line to rotate posture structure, when hydraulic pressure chain tightening device output gear and gear wheel separation and meshing, brings into certain angle of cut and gets into meshing and separation, can realize automatic meshing and separation under the effect of self gravity simultaneously. Secondly, through external casing, isolated dust and debris get into the inside of hydraulic pressure chain tightener. This type tight chain ware overall structure adopts the compact type of increaseing, makes hydraulic motor installation axle center raise, crosses reduction gear and cover section of thick bamboo flange joint to the design that realizes reducing cover section of thick bamboo axial dimension improves equipment life. And finally, the hydraulic motor is controlled by matching with a unique hydraulic control valve, so that the hydraulic chain tightener is convenient to operate and reliable in performance.
Drawings
Fig. 1 is a schematic structural view of a gear engagement device for a chain tensioner according to the present invention;
fig. 2 is a schematic cross-sectional view of the gear engagement device for the chain tensioner according to the present invention;
fig. 3 is a schematic top view of the gear engagement device for the chain tensioner according to the present invention;
in the figure:
1-a frame; 2-triangular rotating frame; 3-input wheel rotating shaft; 4-an input wheel; 5-idler shaft rotation; 6-an idler wheel; 7-eccentric wheel; 8-eccentric wheel rotating groove; 9-rotating the handle; 10-shell.
Detailed Description
Referring to fig. 1, 2 and 3, the present invention provides a gear engagement device for a chain tensioner, which includes a frame 1, a triangular rotating frame 2, an engagement gear, an eccentric wheel rotating groove 8 and an eccentric wheel 7; the meshing gear is arranged on the triangular rotating frame 2 and is parallel to the plane of the triangular rotating frame 2; an eccentric wheel rotating groove 8 is formed in the triangular rotating frame 2, and an eccentric wheel 7 capable of rotating in the eccentric wheel rotating groove 8 is arranged in the eccentric wheel rotating groove 8; one side of the triangular rotating frame 2 is connected with the rack 1 through a pin shaft, and the other side of the triangular rotating frame is connected with the rack 1 through an eccentric wheel 7; when the eccentric wheel 7 rotates in the eccentric wheel rotating groove 8, the triangular rotating frame 2 is driven to rotate around the axial direction of the pin shaft; the triangular rotating frame 2 drives the meshing gear to perform lifting motion when rotating around the axial direction of the pin shaft. The meshing gear comprises an input wheel 4 and an idle wheel 6 meshed with the input wheel 4; when the triangular rotating frame 2 rotates around the axial direction of the pin shaft, the input wheel 4 drives the idle wheel 6 to perform lifting motion.
The triangular rotating frame 2 is provided with an input wheel rotating shaft 3 and an idler wheel rotating shaft 5; the input wheel 4 is arranged on the input wheel rotating shaft 3 and can rotate around the axial direction of the input wheel rotating shaft 3; the idler 6 is provided on the idler rotation shaft 5 and is rotatable about the axial direction of the idler rotation shaft 5. The eccentric wheel rotating groove 8 is waist-shaped as a whole. The gear engagement device for the chain tensioner further comprises a turning handle 9 connected to the eccentric 7 and driving the eccentric 7 to turn. The gear engagement device for the chain tensioner further comprises a housing 10 disposed outside the frame 1. The gear engagement device for the chain tensioner further comprises a hydraulic motor connected to the input wheel 4.
The utility model discloses a working method is: the separation and the engagement of the hydraulic chain tightener are realized through the triangular rotating frame 2. The automatic separation and engagement core component of the hydraulic chain tightener consists of a triangular rotating frame 2, an input wheel 4 and an eccentric wheel 7. When meshing is needed, the eccentric shaft 7 is driven to rotate by rotating the rotating handle 9 connected with the eccentric wheel 7, the eccentric shaft 7 drives the triangular rotating frame 2 to do downward arc motion, the triangular rotating frame 2 drives the idle wheel 6 to form a certain included angle with the large gear to be meshed through the input wheel 4, and due to the influence of self gravity, the triangular rotating frame can smoothly and automatically enter the meshing at a certain cut-in angle, so that the torque is transmitted, and the operation is light and reliable; when the separation is needed, the rotating handle 9 is operated to rotate to drive the eccentric shaft 7, the eccentric shaft 7 drives the triangular rotating frame 2 to move upwards in an arc shape, and the large gear is driven to be separated from the idle gear 6 through the input wheel 4 easily under the influence of the back tension of the chain at a certain separation angle. The utility model discloses mainly realize each item function through the inside unique design structure of gear box, guarantee under the closed environment, realize the light meshing and the separation of tight chain ware of hydraulic pressure, realized reducing cover section of thick bamboo axial dimension's hypothesis simultaneously.
Claims (7)
1. A gear engagement device for a chain tensioner is characterized in that: the gear meshing device for the chain tightener comprises a rack (1), a triangular rotating frame (2), a meshing gear, an eccentric wheel rotating groove (8) and an eccentric wheel (7); the meshing gear is arranged on the triangular rotating frame (2) and is parallel to the plane of the triangular rotating frame (2); an eccentric wheel rotating groove (8) is formed in the triangular rotating frame (2), and an eccentric wheel (7) capable of rotating in the eccentric wheel rotating groove (8) is arranged in the eccentric wheel rotating groove (8); one side of the triangular rotating frame (2) is connected with the rack (1) through a pin shaft, and the other side of the triangular rotating frame is connected with the rack (1) through an eccentric wheel (7); the eccentric wheel (7) drives the triangular rotating frame (2) to rotate around the axial direction of the pin shaft when rotating in the eccentric wheel rotating groove (8); the triangular rotating frame (2) drives the meshing gear to perform lifting motion when rotating around the axial direction of the pin shaft.
2. The gear engagement device for a chain tensioner according to claim 1, wherein: the meshing gear comprises an input wheel (4) and an idle wheel (6) meshed with the input wheel (4); when the triangular rotating frame (2) rotates around the axial direction of the pin shaft, the input wheel (4) drives the idle wheel (6) to move up and down.
3. The gear engagement device for a chain tensioner according to claim 2, wherein: the triangular rotating frame (2) is provided with an input wheel rotating shaft (3) and an idler wheel rotating shaft (5); the input wheel (4) is arranged on the input wheel rotating shaft (3) and can rotate around the axial direction of the input wheel rotating shaft (3); the idler wheel (6) is arranged on the idler wheel rotating shaft (5) and can rotate around the axial direction of the idler wheel rotating shaft (5).
4. The gear engagement device for a chain tensioner according to claim 1, 2 or 3, characterized in that: the eccentric wheel rotating groove (8) is waist-shaped as a whole.
5. The gear engagement device for a chain tensioner according to claim 4, wherein: the gear meshing device for the chain tightener further comprises a rotating handle (9) which is connected with the eccentric wheel (7) and is used for driving the eccentric wheel (7) to rotate.
6. The gear engagement device for a chain tensioner according to claim 5, wherein: the gear meshing device for the chain tightener further comprises a shell (10) arranged outside the rack (1).
7. The gear engagement device for a chain tensioner according to claim 6, wherein: the gear engagement device for the chain tensioner further comprises a hydraulic motor connected with the input wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172807.8U CN210392561U (en) | 2019-07-24 | 2019-07-24 | Gear engagement device for chain tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172807.8U CN210392561U (en) | 2019-07-24 | 2019-07-24 | Gear engagement device for chain tensioner |
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| Publication Number | Publication Date |
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| CN210392561U true CN210392561U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921172807.8U Active CN210392561U (en) | 2019-07-24 | 2019-07-24 | Gear engagement device for chain tensioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422571A (en) * | 2019-07-24 | 2019-11-08 | 陕西朗浩传动技术有限公司 | Chain tightener gear meshing device |
-
2019
- 2019-07-24 CN CN201921172807.8U patent/CN210392561U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422571A (en) * | 2019-07-24 | 2019-11-08 | 陕西朗浩传动技术有限公司 | Chain tightener gear meshing device |
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