CN210714754U - Traction device - Google Patents
Traction device Download PDFInfo
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- CN210714754U CN210714754U CN201921633984.1U CN201921633984U CN210714754U CN 210714754 U CN210714754 U CN 210714754U CN 201921633984 U CN201921633984 U CN 201921633984U CN 210714754 U CN210714754 U CN 210714754U
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- traction
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- positioning
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Abstract
The utility model discloses a traction device. The traction device comprises: a traction wheel; the connecting piece is provided with a first connecting hole; the two ends of the rotating shaft are fixedly connected to the connecting piece, the traction wheel is provided with a traction hole, and the traction wheel is rotatably sleeved on the rotating shaft through the traction hole; the graphite sleeve is positioned between the rotating shaft and the traction hole, the outer side face of the graphite sleeve is contacted with the inner side face of the traction hole, and the inner side face of the graphite sleeve is contacted with the outer side face of the rotating shaft; the connecting head is provided with a second connecting hole; the connecting rod, the connecting rod wear to establish in proper order and fix the connector on the connecting piece after first connecting hole and the second connecting hole that align to set up, connecting rod and pivot parallel arrangement. The utility model provides a draw gear has reduced draw gear's use cost, has increased draw gear's structural strength, has improved the security.
Description
Technical Field
The utility model relates to a coal mine machine technical field especially relates to a draw gear.
Background
The hydraulic support is indispensable equipment for supporting the fully mechanized mining face, and the hydraulic support needs to be retracted after the mining of the fully mechanized mining face is completed.
In the prior art, a traditional method for withdrawing a hydraulic support on a fully mechanized mining face is to arrange a withdrawal winch on a withdrawal channel, connect a traction device to the withdrawal winch, move the withdrawal winch to the vicinity of the hydraulic support, draw out a steel wire rope connected to the traction device and connect the steel wire rope to the hydraulic support, start the withdrawal winch, and withdraw the hydraulic support through the pulling action of the traction device and the steel wire rope. The inventor finds that the prior traction device has the following defects in the working process in the process of realizing the invention and creation: firstly, the traction device is provided with a pulley, the pulley is rotationally connected with the rotating shaft, the steel wire rope is sleeved on the pulley, the weight of the hydraulic support is larger, when the traction device drives the steel wire rope to pull the hydraulic support through the pulley, the pulley and the rotating shaft are seriously abraded, the service life of the traction device is shortened, and the use cost of the traction device is increased by frequently replacing the rotating shaft or the pulley; secondly, a connector used for being connected with a retracting winch on the traction device is generally welded and installed on a main structure of the traction device, and in the traction process, the connector and the main structure of the traction device are stressed greatly at the welding position, so that the connector and the main structure of the traction device are easy to break, and safety accidents are caused.
Therefore, it is necessary to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a traction device to solve the problem that exists among the prior art, reduce traction device's use cost, increase traction device's structural strength, improve the security.
The utility model provides a traction device, include: a traction wheel; the connecting piece is provided with a first connecting hole; the two ends of the rotating shaft are fixedly connected to the connecting piece, the traction wheel is provided with a traction hole, and the traction wheel is rotatably sleeved on the rotating shaft through the traction hole; the graphite sleeve is positioned between the rotating shaft and the traction hole, the outer side face of the graphite sleeve is contacted with the inner side face of the traction hole, and the inner side face of the graphite sleeve is contacted with the outer side face of the rotating shaft; the connecting head is provided with a second connecting hole; the connecting rod, the connecting rod is worn to establish in proper order and is aligned the setting first connecting hole with will behind the second connecting hole the connector is fixed on the connecting piece, the connecting rod with pivot parallel arrangement.
Optionally, the connecting piece comprises a first connecting plate and a second connecting plate which are oppositely arranged, the traction wheel is rotatably connected between the first connecting plate and the second connecting plate, and the rotation axis of the traction wheel is perpendicular to the end face of the traction wheel; the first connecting hole penetrates through the first connecting plate and the second connecting plate; the second connecting hole is located two between the first connecting hole, the connecting rod is worn to establish in proper order and is aligned the setting first connecting hole the second connecting hole and another first connecting hole will the connector is injectd in between first connecting plate and the second connecting plate.
Optionally, the connecting rod includes a positioning screw, and the positioning screw sequentially penetrates through the first connecting hole, the second connecting hole and the other first connecting hole and then is fastened on the second connecting plate through a positioning nut.
Optionally, the connector further comprises a traction end, the traction end comprises a traction surface, the traction surface is parallel to the rotating shaft, the traction surface is provided with a positioning hole, and the positioning hole is perpendicular to the traction surface.
Optionally, at least one end face of the traction wheel is connected with a wear-resistant boss, and the traction hole penetrates through the wear-resistant boss; the wear-resistant boss is a circular truncated cone, and the central axis of the traction wheel, the central axis of the traction hole and the central axis of the wear-resistant boss are arranged in a collinear manner.
Optionally, a first guard plate is attached to the first connecting plate, and the first guard plate is located on one side, back to the traction wheel, of the first connecting plate; the second connecting plate is provided with a second guard plate in a fitting mode, and the second guard plate is located on one side, back to the traction wheel, of the second connecting plate.
Optionally, the first connecting plate and the second connecting plate are both provided with rotating shaft holes; the two rotating shaft holes respectively penetrate through the first protection plate and the second protection plate in a one-to-one correspondence mode, and two rotating shaft holes are fixedly formed in the two ends of the rotating shaft in a one-to-one correspondence mode.
Optionally, the first guard plate and the second guard plate are respectively provided with a reinforcing piece in a laminating manner, the two rotating shaft holes respectively penetrate through the two reinforcing pieces, and two ends of the rotating shaft are respectively fixedly penetrated through the two reinforcing pieces in a one-to-one correspondence manner.
Optionally, the traction device further comprises two positioning keys, positioning key grooves are formed in the two ends of the rotating shaft, a first positioning groove is formed in the inner wall of the rotating shaft hole in the first connecting plate, a second positioning groove is formed in the inner wall of the rotating shaft hole in the second connecting plate, the first positioning groove and the second positioning groove are respectively buckled with the two positioning key grooves in a one-to-one correspondence manner to form a limiting space, and the two positioning keys are embedded in the limiting space.
Optionally, the traction device further includes fastening nuts, external threads are formed on the outer side surfaces of the portions, extending out of the outer sides of the reinforcing pieces, of the two ends of the rotating shaft, and the two fastening nuts are respectively screwed on the two external threads and fastened on the two reinforcing pieces.
The utility model provides a traction device, through set up the graphite sleeve on the traction wheel and between the pivot, can increase the lubricated effect between traction wheel and the pivot, reduce the friction between traction wheel and the pivot, reduce the change frequency of traction wheel or pivot, reduce the use cost of traction wheel and pivot; the connecting rod is connected connector and connecting piece shaft hole, and draw gear atress perpendicular to connecting rod under operating condition can increase the structural stability of connector and connecting piece behind the junction atress to the locking effect of connecting rod in the direction of perpendicular to connecting rod through the connecting piece, avoids taking place cracked problem, improves the security.
Drawings
The preferred embodiments of the present invention will hereinafter be described in detail to facilitate understanding of the objects and advantages of the invention, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a traction apparatus according to an alternative embodiment of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic structural diagram of a first connecting plate according to an alternative embodiment of the present invention.
Fig. 4 is a rear view of fig. 3.
Fig. 5 is a right side view of fig. 3.
Fig. 6 is a schematic structural view of a traction wheel according to an alternative embodiment of the present invention.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a schematic structural view of a rotating shaft according to an alternative embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a connector according to an alternative embodiment of the present invention.
Fig. 10 is a left side view of fig. 9.
Detailed Description
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.
Fig. 1 is the schematic structural diagram of the traction device provided by the optional embodiment of the present invention, fig. 2 is the right side view of fig. 1, fig. 3 is the schematic structural diagram of the first connecting plate provided by the optional embodiment of the present invention, fig. 4 is the back view of fig. 3, fig. 5 is the right side view of fig. 3, fig. 6 is the schematic structural diagram of the traction wheel provided by the optional embodiment of the present invention, fig. 7 is the left side view of fig. 6, fig. 8 is the schematic structural diagram of the rotating shaft provided by the optional embodiment of the present invention, fig. 9 is the schematic structural diagram of the connecting head provided by the optional embodiment of the present invention, and fig. 10 is the left side view of fig. 9.
As shown in fig. 1 to 10, the utility model provides a traction device, include: traction wheel 1, connecting piece, pivot 6, graphite sleeve 8, connector 4, and connecting rod 5.
Referring to fig. 1 to 10, the connecting member has a first connecting hole 25; two ends of the rotating shaft 6 are fixedly connected to the connecting piece, a traction hole 11 is formed in the traction wheel 1, and the traction wheel 1 is rotatably sleeved on the rotating shaft 6 through the traction hole 11; the graphite sleeve 8 is positioned between the rotating shaft 6 and the traction hole 11, the outer side surface of the graphite sleeve 8 is in contact with the inner side surface of the traction hole 11, and the inner side surface of the graphite sleeve 8 is in contact with the outer side surface of the rotating shaft 6; the connector 4 is provided with a second connecting hole 43; connecting rod 5 wears to establish in proper order and aligns the setting first connecting hole 25 with will behind the second connecting hole 43 connector 4 is fixed on the connecting piece, connecting rod 5 with pivot 6 parallel arrangement.
It should be noted that, graphite sleeve 8 can be with the copper sheathing as the base member, a plurality of mounting holes have been seted up on the medial surface and the lateral surface of copper sheathing, inlay in the mounting hole and establish graphite or molybdenum disulfide as solid lubricant, in the in-process of pivot 6 and traction wheel 1 relative rotation, partial graphite granule shifts to the contact surface of graphite sleeve 8 and pivot 6, on the contact surface of graphite sleeve 8 and traction wheel 1, form the comparatively stable solid lubrication diaphragm of one deck, prevent direct adhesion wearing and tearing between pivot 6 and the traction wheel 1, a plurality of mounting holes can be along the circumference of graphite sleeve 8's lateral surface and the circumference evenly distributed of graphite sleeve 8 medial surface. The effect of traction wheel 1 is the same with the pulley, and holding tank 12 can be seted up to traction wheel 1's lateral surface, and holding tank 12 extends along the circumference of traction wheel 1's lateral surface and forms the structure of closed loop, and wire rope cover is established and is slided in holding tank 12, has increased wire rope's the stable in structure of injecing on traction wheel 1.
The utility model provides a traction device, through set up graphite sleeve 8 on traction wheel 1 and between pivot 6, can increase the lubricated effect between traction wheel 1 and pivot 6, reduce the friction between traction wheel 1 and pivot 6, reduce the change frequency of traction wheel 1 or pivot 6, reduce the use cost of traction wheel 1 and pivot 6; connecting rod 5 is connected connector 4 and connecting piece shaft hole, and draw gear atress perpendicular to connecting rod 5 under operating condition can increase the structural stability of connector 4 and connecting piece after the junction atress to connecting rod 5 at the ascending locking effect of perpendicular to connecting rod 5's side through the connecting piece, avoids taking place cracked problem, improves the security.
Preferably, the connecting piece comprises a first connecting plate 2 and a second connecting plate 3 which are oppositely arranged, the traction wheel 1 is rotatably connected between the first connecting plate 2 and the second connecting plate 3, and the rotating shaft 6 line of the traction wheel 1 is perpendicular to the end face of the traction wheel 1; the first connecting hole 25 penetrates through the first connecting plate 2 and the second connecting plate 3; second connecting hole 43 is located two between the first connecting hole 25, connecting rod 5 wears to establish in proper order and aligns the setting first connecting hole 25 second connecting hole 43 and another first connecting hole 25 will connector 4 is injectd in between first connecting plate 2 and the second connecting plate 3. First connecting plate 2 and second connecting plate 3 in this embodiment can play spacing effect to traction wheel 1 to increase 1 pivoted stability of traction wheel, first connecting plate 2 and second connecting plate 3 can strengthen the locking effect to connecting rod 5, further increase the structural stability of connector 4 and connecting rod 5 at the junction atress.
As an optional implementation process, the connecting rod 5 includes a positioning screw, and the positioning screw passes through the first connecting hole 25, the second connecting hole 43, and the other first connecting hole 25 in sequence and then is fastened to the second connecting plate 3 through a positioning nut 51. The structural stability of positioning screw is high, and the structural strength and the tensile stability of being connected between connecting rod 5 and the connecting piece can be increased through the locking of set nut 51.
Preferably, the connector 4 further includes a pulling end, the pulling end includes a pulling surface 41, the pulling surface 41 is parallel to the rotating shaft 6, the pulling surface 41 is provided with a positioning hole 42, and the positioning hole 42 is perpendicular to the pulling surface 41. In the working process of the traction device, the rotating shaft 6 is generally horizontally arranged, and two ends of a steel wire rope wound on the traction wheel 1 extend out from the upper end and the lower end of the traction wheel 1 respectively and are connected to the hydraulic support; the locating hole 42 in the embodiment is used for being sleeved on a locating pin arranged on the retraction winch, the locating pin is generally vertically arranged, the traction hole 11 provided with the locating hole 42 is arranged to be parallel to the rotating shaft 6, the locating hole 42 can be stably arranged at the bottom of the locating pin under the action of self gravity after being sleeved on the locating pin, the locating hole 42 is prevented from falling off from the locating pin, and the stability and the convenience of connection between the traction device and the retraction winch are improved. It should be noted that the connector 4 may be integrally formed, and after a whole board is blanked, the bending device rotates the portion (fig. 9 or a of fig. 10) between the second connection hole 43 and the pulling end by 90 ° so as to vertically arrange the positioning hole 42 and the second connection hole 43, so that the integrally formed connector 4 has the effects of good structural stability and high tensile strength.
Preferably, at least one end face of the traction wheel 1 is connected with a wear-resistant boss 7, and the traction hole 11 penetrates through the wear-resistant boss 7; the wear-resistant boss 7 is a circular truncated cone, and the central axis of the traction wheel 1, the central axis of the traction hole 11 and the central axis of the wear-resistant boss 7 are arranged in a collinear manner. When traction wheel 1 moves towards the direction that is close to first connecting plate 2 or second connecting plate 3, wear-resisting boss 7 at first contacts with first connecting plate 2 or second connecting plate 3 to reduce the degree of wear of the terminal surface of traction wheel 1, play the effect of protection traction wheel 1.
On the basis of the above embodiment, a first protection plate 21 is attached to the first connection plate 2, and the first protection plate 21 is located on one side of the first connection plate 2, which is back to the traction wheel 1; a second guard plate is attached to the second connecting plate 3 and located on one side, back to the traction wheel 1, of the second connecting plate 3. The first guard plate 21 in this embodiment can increase the structural strength of the first connecting plate 2, and the second guard plate can increase the structural strength of the second connecting plate 3, thereby reducing the probability of fracture of the first connecting plate 2 and the second connecting plate 3 under the stretching action.
Further, the first connecting plate 2 and the second connecting plate 3 are both provided with rotating shaft holes 24; the two rotating shaft holes 24 respectively penetrate through the first guard plate 21 and the second guard plate in a one-to-one correspondence manner, and two rotating shaft holes 24 are fixedly arranged at two ends of the rotating shaft 6 in a one-to-one correspondence manner. Through the reinforcing effect of first backplate 21, can increase the structural stability of first connecting plate 2 and pivot 6 at the junction, through the reinforcing effect of second backplate, can increase the structural stability of second connecting plate 3 and pivot 6 at the junction.
Preferably, the first guard plate 21 and the second guard plate are both provided with reinforcing pieces 22 in a fitting manner, the two rotating shaft holes 24 respectively penetrate through the two reinforcing pieces 22, and two ends of the rotating shaft 6 respectively penetrate through the two reinforcing pieces 22 in a one-to-one corresponding manner. Similarly, the reinforcing plate disposed on the first guard plate 21 can increase the structural stability of the joint of the first connecting plate 2 and the rotating shaft 6, and the reinforcing plate disposed on the second guard plate can increase the structural stability of the joint of the second connecting plate 3 and the rotating shaft 6.
On the basis of the above embodiment, the traction device further comprises two positioning keys, positioning key grooves 61 are formed in the two ends of the rotating shaft 6, first positioning grooves 23 are formed in the inner walls of the rotating shaft holes 24 in the first connecting plate 2, second positioning grooves are formed in the inner walls of the rotating shaft holes 24 in the second connecting plate 3, the first positioning grooves 23 and the second positioning grooves are respectively buckled with the two positioning key grooves 61 in a one-to-one correspondence mode to form limiting spaces, and the two positioning keys are embedded in the two limiting spaces. This implementation can increase the structural stability of pivot 6 in circumference, avoids pivot 6 to take place the rotation, improves pivot 6's structural stability.
Further, the traction device further comprises fastening nuts 9, external threads are formed on the outer side surfaces of the portions, extending out of the outer sides of the reinforcing pieces 22, of the two ends of the rotating shaft 6, and the two fastening nuts 9 are respectively screwed on the two external threads and fastened on the two reinforcing pieces 22. This embodiment can further increase the structural stability of the rotating shaft 6.
Furthermore, the fastening nuts 9 can be welded and fixed to the reinforcing plate 22, thereby increasing the stability of the first connecting plate 2 and the second connecting plate 3 after being subjected to the tensile action.
The traction wheel 1 and the rotating shaft 6 can be made of 45CrNi Mo round steel. The 45CrN i Mo is alloy permeable steel, has the effects of high strength, high toughness, good hardenability and very high surface hardness and wear resistance after permeation quenching, and is favorable for increasing the integral structural stability of the traction device. The first connecting plate 2, the second connecting plate 3, the first guard plate 21 and the second guard plate can be made of Q345B steel, so as to increase the stretching-resistant effect of the traction device.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A traction device, comprising:
a traction wheel;
the connecting piece is provided with a first connecting hole;
the two ends of the rotating shaft are fixedly connected to the connecting piece, the traction wheel is provided with a traction hole, and the traction wheel is rotatably sleeved on the rotating shaft through the traction hole;
the graphite sleeve is positioned between the rotating shaft and the traction hole, the outer side face of the graphite sleeve is contacted with the inner side face of the traction hole, and the inner side face of the graphite sleeve is contacted with the outer side face of the rotating shaft;
the connecting head is provided with a second connecting hole;
the connecting rod, the connecting rod is worn to establish in proper order and is aligned the setting first connecting hole with will behind the second connecting hole the connector is fixed on the connecting piece, the connecting rod with pivot parallel arrangement.
2. The draft gear according to claim 1, wherein said hitch comprises first and second oppositely disposed lugs, said draft wheel rotatably coupled between said first and second lugs, said draft wheel having an axis of rotation perpendicular to an end surface of said draft wheel; the first connecting hole penetrates through the first connecting plate and the second connecting plate; the second connecting hole is located two between the first connecting hole, the connecting rod is worn to establish in proper order and is aligned the setting first connecting hole the second connecting hole and another first connecting hole will the connector is injectd in between first connecting plate and the second connecting plate.
3. The traction device as claimed in claim 2, wherein the connecting rod comprises a positioning screw, and the positioning screw passes through the first connecting hole, the second connecting hole and the other first connecting hole in sequence and then is fastened on the second connecting plate through a positioning nut.
4. The traction device as claimed in claim 3, wherein the connector further comprises a traction end, the traction end comprises a traction surface, the traction surface is parallel to the rotating shaft, a positioning hole is formed in the traction surface, and the positioning hole is perpendicular to the traction surface.
5. The traction device as claimed in claim 4, wherein at least one of the end faces of the traction wheel is connected with a wear-resistant boss, and the traction hole penetrates through the wear-resistant boss; the wear-resistant boss is a circular truncated cone, and the central axis of the traction wheel, the central axis of the traction hole and the central axis of the wear-resistant boss are arranged in a collinear manner.
6. The traction device as claimed in any one of claims 2 to 5, wherein a first guard plate is attached to the first connecting plate, and the first guard plate is positioned on the side of the first connecting plate facing away from the traction wheel; the second connecting plate is provided with a second guard plate in a fitting mode, and the second guard plate is located on one side, back to the traction wheel, of the second connecting plate.
7. The traction device as claimed in claim 6, wherein the first connecting plate and the second connecting plate are both provided with a rotating shaft hole; the two rotating shaft holes respectively penetrate through the first protection plate and the second protection plate in a one-to-one correspondence mode, and two rotating shaft holes are fixedly formed in the two ends of the rotating shaft in a one-to-one correspondence mode.
8. The draft gear according to claim 7, wherein the first guard plate and the second guard plate are respectively provided with a reinforcing piece, the two rotating shaft holes respectively penetrate through the two reinforcing pieces, and two ends of the rotating shaft respectively penetrate through the two reinforcing pieces in a one-to-one correspondence manner.
9. The draft gear according to claim 8, further comprising two positioning keys, wherein the two ends of the shaft are each provided with a positioning key slot, the inner wall of the shaft hole on the first connecting plate is provided with a first positioning slot, the inner wall of the shaft hole on the second connecting plate is provided with a second positioning slot, the first positioning slot and the second positioning slot are respectively engaged with the two positioning key slots in a one-to-one correspondence manner to form a limiting space, and the two positioning keys are embedded in the two limiting spaces.
10. The traction device as claimed in any one of claims 8 to 9, further comprising fastening nuts, wherein external threads are formed on the outer side surfaces of the portions of the two ends of the rotating shaft extending out of the outer sides of the reinforcing pieces, and the two fastening nuts are respectively screwed on the two external threads and fastened on the two reinforcing pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921633984.1U CN210714754U (en) | 2019-09-27 | 2019-09-27 | Traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921633984.1U CN210714754U (en) | 2019-09-27 | 2019-09-27 | Traction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714754U true CN210714754U (en) | 2020-06-09 |
Family
ID=70965320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921633984.1U Active CN210714754U (en) | 2019-09-27 | 2019-09-27 | Traction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210714754U (en) |
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2019
- 2019-09-27 CN CN201921633984.1U patent/CN210714754U/en active Active
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