CN216895644U - Maintenance-free duplex gear rail wheel set - Google Patents
Maintenance-free duplex gear rail wheel set Download PDFInfo
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- CN216895644U CN216895644U CN202220250893.5U CN202220250893U CN216895644U CN 216895644 U CN216895644 U CN 216895644U CN 202220250893 U CN202220250893 U CN 202220250893U CN 216895644 U CN216895644 U CN 216895644U
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Abstract
The utility model discloses a maintenance-free duplex rack rail wheel set, which comprises a large gear, wherein a rack rail wheel body is arranged on the side edge of the large gear, bearings are fixed on the large gear and the rack rail wheel body, an inner bushing is connected to the inner side of each bearing, the inner bushing is connected with a transmission shaft, and connecting bolts are arranged on the large gear and the rack rail wheel body at the same angle with the circle center for connection and fixation; further comprising: and the toothed blocks are concentrically and equiangularly distributed on the rack wheel body, and can slide with the rack wheel body. This non-maintaining pair rack wheel group adopts elastic sealing structure, when can making rack wheel body and higher level gear engagement, can realize the self-lubricate effect, cooperation water conservancy diversion mechanism, and then realize comprehensive lubrication action to avoid the tooth piece meshing in-process to damage because of the friction, cooperation buffering damper realizes the guard action to the tooth piece, avoids the meshing in-process to make the tooth piece damage because of the vibrations effect.
Description
Technical Field
The utility model relates to the technical field of duplex gear-track wheel sets, in particular to a maintenance-free duplex gear-track wheel set.
Background
The double-linked rack-and-pinion wheel set is a mechanical transmission element, mainly comprises a chain wheel, a gear and a bearing, and is widely applied to a travelling mechanism of a coal mining machine, the existing double-linked rack-and-pinion wheel set is like the double-linked rack-and-pinion wheel set for the coal mining machine with the publication number of CN203189668U, a double-row self-aligning roller bearing is adopted, and the double-row self-aligning roller bearing has a certain movement margin … in the circumferential direction, so that the situation that the rack-and-pinion wheel set is blocked due to slipping of a conveyor or over-emergency of a pulling frame is avoided, the degree of freedom of the rack-and-pinion wheel set of the coal mining machine is improved, and the service life of the rack-and-pinion wheel set is prolonged;
above-mentioned current pair rack wheelset still has certain defect in the use, because pair rack wheelset during operation, both need with the meshing of conveyer round pin row, still need with the higher level gear engagement of coal-winning machine, thereby it is very fast to lead to pair rack wheelset friction, need artifical additional lubrication oil to maintain the normal use in order to guarantee pair rack wheelset, comparatively troublesome, and when pair rack wheelset and external gear meshing, the flank of tooth bears great effort, thereby lead to the easy fracture of teeth of a cogwheel, and then influence the normal use scheduling problem of device, so need improve in order to satisfy actual demand to above-mentioned problem.
Disclosure of Invention
The utility model aims to provide a maintenance-free duplex rack-and-pinion wheel set to solve the problems that gear friction is fast due to inconvenience in automatic lubricating oil adding and tooth blocks are prone to fracture due to lack of a buffer protection mechanism in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a maintenance-free duplex rack-and-pinion wheel set comprises a gear wheel, wherein a rack-and-pinion wheel body is arranged on the side edge of the gear wheel, bearings are fixed on the gear wheel and the rack-and-pinion wheel body, inner linings are connected to the inner sides of the bearings, the inner linings are connected with a transmission shaft, and connecting bolts are arranged on the gear wheel and the rack-and-pinion wheel body at the same angle with the circle center for connection and fixation;
further comprising:
the gear block is concentrically and equiangularly distributed on the rack rail wheel body, the gear block and the rack rail wheel body can slide, a lubricating oil groove is formed in the inner side of the rack rail wheel body, the lubricating oil groove is connected with an oil filling hole, and the oil filling hole is formed in the rack rail wheel body;
the movable rod is connected to the gear rail wheel body in a concentric equal-angle sliding mode, oil outlet holes are symmetrically formed in the side edge of the movable rod, and the oil outlet holes are formed in the gear rail wheel body.
Preferably, the gear wheel body is also provided with a positioning convex shaft and a diversion trench;
the positioning convex shafts are distributed on the gear rail wheel body at equal angles in the same circle center, and the positioning convex shafts and the large gear form nested connection;
the diversion trench is arranged on the rack wheel body to realize diversion effect, and the rack wheel body and the large gear are assembled to realize positioning assembly through the effect of the positioning convex shaft, so that the assembly stability is ensured.
Preferably, a sealing ring is further arranged between the toothed rail wheel body and the large gear, the toothed rail wheel body and the large gear form a sealing mechanism through the sealing ring, and after the toothed rail wheel body and the large gear are assembled, the sealing performance between the toothed rail wheel body and the large gear is guaranteed through the effect of the sealing ring, so that leakage is avoided.
Preferably, the tooth block is further provided with a through hole and a first spring;
the through hole is formed in the tooth block to achieve the shockproof effect;
first spring is fixed terminal surface under the tooth piece, and the first spring other end is fixed on the rack rail wheel body, and first spring is the symmetric distribution about the tooth piece center simultaneously, constitutes shock attenuation buffer gear through above-mentioned mechanism, when tooth piece and external gear engagement produced vibrations, can avoid the transmission of vibration wave through the effect of through-hole, and the elastic action of cooperation first spring realizes the buffering to the guard action of realization to the tooth piece avoids the tooth piece because of the emergence of meshing vibrations effect lead to the cracked condition.
Preferably, the movable rod is also provided with a semicircular hole and a sealing plug;
the semicircular holes are arranged on the movable rod at equal intervals and are symmetrically distributed about the center line of the movable rod;
the sealing plug is fixed the movable rod lower extreme, and the sealing plug mutually supports with the oil outlet and constitutes sealing mechanism to the sealing plug is the taper type structure, removes at the movable rod, drives the sealing plug simultaneously and removes, removes sealing effect, and convenient lubrication has the automation to spill over, and the effect of cooperation semicircle orifice can realize taking out the automation of lubricating oil, thereby realizes the self-lubricate effect to the tooth piece, avoids the tooth piece to damage because of the friction.
Preferably, still be fixed with the second spring below the sealing plug, and the second spring other end is fixed on the rack wheel body to the sealing plug passes through the second spring and constitutes elastic mechanism with the rack wheel body, removes the back at the movable rod, through the elastic reaction of second spring, can provide basic effort for the reseing of movable rod, thereby for guaranteeing the sealing plug to the sealed effect of oil outlet, avoid lubricating oil extravagant.
Compared with the prior art, the utility model has the beneficial effects that: this non-maintaining pair rack wheelset, adopt elastic seal structure, when can making rack wheel body and higher level gear engagement, can realize the self-lubricate effect, cooperation water conservancy diversion mechanism, and then realize comprehensive lubrication action, thereby avoid the tooth piece meshing in-process to damage because of the friction, cooperation buffering damper realizes the guard action to the tooth piece, avoid the meshing in-process to make the tooth piece damage because of the vibrations effect, thereby guarantee the normal operating of pair rack wheelset, avoid the manual work to maintain, its concrete content is as follows:
1. the maintenance-free duplex rack-and-pinion wheel set is provided with the movable rod, when the upper-stage gear is meshed with the tooth block and the upper-stage gear is in contact with the movable rod, the movable rod is stressed to move to drive the sealing plug to move, the sealing effect is relieved, lubricating oil can conveniently flow out, the lubricating oil can be extracted under the action of the semicircular hole, the comprehensive lubricating effect on the tooth block is ensured under the action of the diversion groove, and therefore the tooth block is prevented from being damaged due to the friction effect;
2. this non-maintaining pair rack-and-pinion wheelset is provided with first spring, realizes the transmission in-process at tooth piece and higher level gear intermeshing, when the tooth piece produces vibrations because of the collision, realizes blockking of shock wave through the effect of through-hole this moment, and the elastic action of cooperation first spring realizes the buffer protection to the tooth piece to effectively avoid the tooth piece to lead to the condition emergence of fracture damage because of the exogenic action.
Drawings
FIG. 1 is a front view of a sectional structure of a bull gear according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a side view of the gear wheel body of the present invention;
FIG. 4 is a front view of the gear wheel body of the present invention;
FIG. 5 is a schematic front sectional view of the rack wheel body according to the present invention.
In the figure: 1. a bull gear; 2. a rack wheel body; 201. positioning the convex shaft; 202. a diversion trench; 3. a bearing; 4. a seal ring; 5. a connecting bolt; 6. an inner liner; 7. a tooth block; 701. a through hole; 702. a first spring; 8. a lubricating oil groove; 9. an oil filler hole; 10. a movable rod; 1001. a semicircular hole; 1002. a sealing plug; 11. an oil outlet hole; 12. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a maintenance-free duplex rack wheel set comprises a large gear 1, wherein a rack wheel body 2 is arranged on the side edge of the large gear 1, bearings 3 are fixed on the large gear 1 and the rack wheel body 2, an inner bushing 6 is connected to the inner side of each bearing 3, the inner bushing 6 is connected with a transmission shaft, and connecting bolts 5 are arranged on the large gear 1 and the rack wheel body 2 at the same angle with the circle center for connection and fixation;
the gear wheel body 2 is also provided with a positioning convex shaft 201 and a diversion trench 202; the positioning convex shaft 201 is concentrically and equiangularly distributed on the rack wheel body 2, and the positioning convex shaft 201 and the large gear 1 form nested connection; the diversion trench 202 is formed on the gear wheel body 2 to realize diversion; a sealing ring 4 is further arranged between the gear rail wheel body 2 and the large gear 1, and the gear rail wheel body 2 and the large gear 1 form a sealing mechanism through the sealing ring 4.
When using this non-maintaining pair rack and pinion wheelset, at first assemble whole pair rack and pinion wheelset, realize the location of rack and pinion body 2 through the nested effect between protruding axle 201 of location and gear wheel 1, the effect of cooperation connecting bolt 5 realizes the fastening, thereby the realization is to the assembly effect of rack and pinion body 2 with gear wheel 1, the sealed of rack and pinion body 2 and gear wheel 1 interface is realized to sealing washer 4's effect this moment, avoid taking place the condition of seepage, install bushing 6 again, and bushing 6 fixes the assembly effect that can realize whole pair rack and pinion wheelset with external rotation axis.
Further comprising:
the toothed block 7 is concentrically and equiangularly distributed on the toothed rail wheel body 2, the toothed block 7 and the toothed rail wheel body 2 can slide, a lubricating oil groove 8 is formed in the inner side of the toothed rail wheel body 2, the lubricating oil groove 8 is connected with an oil injection hole 9, and the oil injection hole 9 is formed in the toothed rail wheel body 2; the movable rod 10 is connected to the gear wheel body 2 in a concentric equal-angle sliding mode, oil outlet holes 11 are symmetrically formed in the side edge of the movable rod 10, and the oil outlet holes 11 are formed in the gear wheel body 2.
The tooth block 7 is also provided with a through hole 701 and a first spring 702; the through hole 701 is formed in the tooth block 7 to achieve a shockproof effect; the first spring 702 is fixed on the lower end face of the tooth block 7, the other end of the first spring 702 is fixed on the rack wheel body 2, and the first spring 702 is symmetrically distributed around the center of the tooth block 7; the movable rod 10 is also provided with a semicircular hole 1001 and a sealing plug 1002; semicircular holes 1001 which are arranged on the movable rod 10 at equal intervals, wherein the semicircular holes 1001 are symmetrically distributed about the center line of the movable rod 10; the sealing plug 1002 is fixed at the lower end of the movable rod 10, the sealing plug 1002 and the oil outlet 11 are matched with each other to form a sealing mechanism, and the sealing plug 1002 is of a conical structure; a second spring 12 is further fixed below the sealing plug 1002, the other end of the second spring 12 is fixed on the rack wheel body 2, and the sealing plug 1002 and the rack wheel body 2 form an elastic mechanism through the second spring 12.
After assembly, in the using process, when the gear block 7 is meshed with a superior gear, when an upper gear is contacted with the movable rod 10, the movable rod 10 is stressed to move downwards and simultaneously drives the sealing plug 1002 to move, the sealing effect on the oil outlet hole 11 is removed, lubricating oil in the lubricating oil groove 8 is convenient to overflow, the lubricating effect on the gear block 7 is realized, a certain amount of lubricating oil is loaded in the semicircular hole 1001, when the upper gear is separated from the movable rod 10, the movable rod 10 is recovered under the action of the second spring 12 at the moment, the sealing effect is realized by matching with the sealing plug 1002, the lubricating oil loaded in the semicircular hole 1001 slides downwards to enter the guide groove 202, the comprehensive lubricating effect on the gear block 7 is realized through the action of the guide groove 202, so that the gear block 7 is prevented from being damaged due to friction, and when the gear block 7 is collided with the superior gear in the meshing process, the gear block 7 vibrates due to collision, at this time, the transmission of vibration waves can be avoided through the effect of the through hole 701, and the buffering and shock absorption are realized by matching with the elastic action of the first spring 702, so that the tooth block 7 is prevented from being damaged due to the action of external force.
The working principle is as follows: as shown in fig. 1-5, when using the maintenance-free dual rack gear set, firstly, the whole dual rack gear set is assembled, the positioning action of the positioning convex shaft 201 and the action of the connecting bolt 5 can realize the assembling action of the rack gear body 2 and the large gear 1, then the rack gear body 2 and the large gear 1 are connected with the external rotating shaft through the inner bushing 6, when the upper gear contacts with the movable rod 10 during the use, the movable rod 10 is forced to drive the sealing plug 1002 to move downwards, the sealing action of the oil outlet 11 is released, the lubricating oil in the lubricating oil groove 8 overflows, the lubricating action of the tooth block 7 is realized, the comprehensive lubricating action of the tooth block 7 is realized by matching with the action of the diversion groove 202, thereby avoiding the tooth block 7 from being damaged due to friction action, and when the tooth block 7 vibrates due to collision during the meshing process of the tooth block 7 and the upper gear, the transmission of vibration wave can be avoided through the effect of through-hole 701 this moment, and the elastic action of cooperation first spring 702 realizes buffering shock attenuation to avoid the cogged block 7 to damage because of the exogenic action, and then guarantee the normal use of pair rack wheelset, avoid maintaining it, this is exactly the theory of operation of this non-maintaining pair rack wheelset.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A maintenance-free duplex rack wheel set comprises a large gear (1), wherein a rack wheel body (2) is arranged on the side edge of the large gear (1), bearings (3) are fixed on the large gear (1) and the rack wheel body (2), an inner bushing (6) is connected to the inner side of each bearing (3), the inner bushing (6) is connected with a transmission shaft, and connecting bolts (5) for connection and fixation are arranged on the large gear (1) and the rack wheel body (2) at equal angles with the circle center;
it is characterized by also comprising:
the gear block (7) is distributed on the gear rail wheel body (2) at the same angle with the center of a circle, the gear block (7) and the gear rail wheel body (2) can slide, a lubricating oil groove (8) is formed in the inner side of the gear rail wheel body (2), the lubricating oil groove (8) is connected with an oil injection hole (9) mutually, and the oil injection hole (9) is formed in the gear rail wheel body (2);
the movable rod (10) is connected to the gear rail wheel body (2) in a concentric equal-angle sliding mode, oil outlet holes (11) are symmetrically formed in the side edge of the movable rod (10), and the oil outlet holes (11) are formed in the gear rail wheel body (2).
2. The maintenance-free dual rack and pinion wheel set as claimed in claim 1, wherein: the rack rail wheel body (2) is also provided with a positioning convex shaft (201) and a diversion trench (202);
the positioning convex shaft (201) is concentrically and equiangularly distributed on the rack rail wheel body (2), and the positioning convex shaft (201) is connected with the large gear (1) in a nested manner;
and the guide groove (202) is formed in the rack rail wheel body (2) to realize the guide effect.
3. The maintenance-free dual rack and pinion wheel set as claimed in claim 1, wherein: a sealing ring (4) is further arranged between the gear rail wheel body (2) and the large gear (1), and the gear rail wheel body (2) and the large gear (1) form a sealing mechanism through the sealing ring (4).
4. The maintenance-free dual rack and pinion wheel set as claimed in claim 1, wherein: the tooth block (7) is also provided with a through hole (701) and a first spring (702);
the through hole (701) is formed in the tooth block (7) to achieve a shockproof effect;
the first spring (702) is fixed on the lower end face of the tooth block (7), the other end of the first spring (702) is fixed on the gear rail wheel body (2), and meanwhile the first spring (702) is symmetrically distributed around the center of the tooth block (7).
5. The maintenance-free dual rack and pinion wheel set as claimed in claim 1, wherein: the movable rod (10) is also provided with a semicircular hole (1001) and a sealing plug (1002);
the semicircular holes (1001) are arranged on the movable rod (10) at equal intervals, and the semicircular holes (1001) are symmetrically distributed around the central line of the movable rod (10);
the sealing plug (1002) is fixed at the lower end of the movable rod (10), the sealing plug (1002) and the oil outlet hole (11) are matched with each other to form a sealing mechanism, and the sealing plug (1002) is of a conical structure.
6. The maintenance-free dual rack and pinion wheel set as claimed in claim 5, wherein: a second spring (12) is further fixed below the sealing plug (1002), the other end of the second spring (12) is fixed on the gear rail wheel body (2), and the sealing plug (1002) and the gear rail wheel body (2) form an elastic mechanism through the second spring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220250893.5U CN216895644U (en) | 2022-02-07 | 2022-02-07 | Maintenance-free duplex gear rail wheel set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220250893.5U CN216895644U (en) | 2022-02-07 | 2022-02-07 | Maintenance-free duplex gear rail wheel set |
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| Publication Number | Publication Date |
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| CN216895644U true CN216895644U (en) | 2022-07-05 |
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| CN202220250893.5U Active CN216895644U (en) | 2022-02-07 | 2022-02-07 | Maintenance-free duplex gear rail wheel set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789211A (en) * | 2023-02-10 | 2023-03-14 | 陕西赫力机械工程有限责任公司 | Maintenance-free duplex rack rail wheel set |
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2022
- 2022-02-07 CN CN202220250893.5U patent/CN216895644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789211A (en) * | 2023-02-10 | 2023-03-14 | 陕西赫力机械工程有限责任公司 | Maintenance-free duplex rack rail wheel set |
| CN115789211B (en) * | 2023-02-10 | 2023-04-18 | 陕西赫力机械工程有限责任公司 | Maintenance-free duplex gear rail wheel set |
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