阅读说明：本技术 一种轮轴联接结构及索道应急传动系统 (Wheel shaft connecting structure and emergency transmission system of cableway ) 是由 张洋 李刚 里鑫 闫登华 姜红旗 于 2019-10-10 设计创作，主要内容包括：本发明涉及索道应急系统技术领域,提供一种轮轴联接结构及索道应急传动系统,轮轴联接结构包括卡盘与连接轴,卡盘上设有定位通孔；连接轴的一端沿轴向设有定位头和环形卡槽；定位通孔嵌装至环形卡槽中,定位通孔与定位头相连接,并构成轴向定位结构与周向旋转定位结构；本发明所示的轮轴联接结构有力防止了卡盘与连接轴之间发生的轴向窜动和周向的相对转动,从而确保了卡盘与连接轴之间相连接的可靠性,并在将该轮轴联接结构用于索道应急传动系统时,进一步确保了索道应急系统运行的稳定性和可靠性。(The invention relates to the technical field of cableway emergency systems, and provides a wheel shaft connecting structure and a cableway emergency transmission system, wherein the wheel shaft connecting structure comprises a chuck and a connecting shaft, and the chuck is provided with a positioning through hole; one end of the connecting shaft is provided with a positioning head and an annular clamping groove along the axial direction; the positioning through hole is embedded into the annular clamping groove and is connected with the positioning head to form an axial positioning structure and a circumferential rotating positioning structure; the axle connecting structure disclosed by the invention can powerfully prevent the axial float and the circumferential relative rotation between the chuck and the connecting shaft, thereby ensuring the reliability of the connection between the chuck and the connecting shaft, and further ensuring the stability and the reliability of the operation of a cableway emergency system when the axle connecting structure is used for the cableway emergency transmission system.)

1. A wheel axle connecting structure comprises a chuck and a connecting shaft, and is characterized in that,

a positioning through hole is formed in the chuck;

one end of the connecting shaft is axially provided with a positioning head and an annular clamping groove;

the positioning through hole is embedded into the annular clamping groove and connected with the positioning head to form an axial positioning structure and a circumferential rotation positioning structure.

2. Axle coupling according to claim 1,

the positioning through hole comprises a circular through hole and a plurality of first positioning teeth circumferentially arranged along the circular through hole, and a first positioning clamping groove is formed between every two adjacent first positioning teeth;

the positioning head comprises a plurality of second positioning teeth arranged on the side wall of the connecting shaft along the circumference, and a second positioning clamping groove is formed between every two adjacent second positioning teeth;

the first positioning teeth and the second positioning teeth are oppositely arranged and are attached side by side along the axial direction to form the axial positioning structure;

and key bars are inserted into the first positioning clamping groove and the second positioning clamping groove which are oppositely spliced into a whole so as to form the circumferential rotating positioning structure.

3. Axle coupling according to claim 2,

the first positioning teeth are uniformly distributed on the inner wall of the circular through hole in a circumferential manner;

the second positioning teeth are circumferentially and uniformly distributed on the groove edge on one side of the annular clamping groove.

4. Axle coupling according to claim 3,

the diameter of the circular through hole is matched with the diameter of the side wall of the connecting shaft, and the length of the first positioning tooth in the radial direction is smaller than or equal to the depth of the annular clamping groove.

5. Axle coupling according to claim 3,

the positioning head and the annular clamping groove are sequentially arranged from the end part to the inner side of the connecting shaft along the axial direction;

the second positioning teeth are arranged on the outer side groove edge of the annular clamping groove, and the second positioning clamping groove and the groove bottom of the annular clamping groove are arranged on the same circumferential surface.

6. The wheel axle coupling as defined in any one of claims 2-5, wherein the first positioning teeth are identical to the second positioning teeth and comprise any one of a fan-ring shape, a rectangular shape, a triangular shape, and a semi-circular shape.

7. A cableway emergency drive system comprising a mobile platform and a rotating member, characterized in that it further comprises an axle coupling according to any one of claims 1 to 6;

the moving platform is connected with the chuck, and the other end of the connecting shaft is connected with the rotating part.

8. Cableway emergency drive system according to claim 7,

the other end of the connecting shaft is connected with the rotating part through a bearing, and the rotating part comprises a driving wheel or an unpowered wheel.

Technical Field

The invention relates to the technical field of cableway emergency systems, in particular to a wheel axle connecting structure and a cableway emergency transmission system.

Background

The aerial cableway is widely applied to places such as tourism and sightseeing, outdoor construction and the like, and brings great convenience for the transportation of personnel or goods. In order to improve the capability of the cableway to emergencies, ensure that emergency work of the cableway emergencies is carried out in a coordinated, orderly and efficient manner, prevent and reduce casualties, property loss and public influence caused by the cableway emergencies (faults or accidents) to the maximum extent, and put forward higher requirements on the stability and reliability of the operation of the cableway emergency system.

Currently, in cableway emergency systems, the mobile platform is usually connected to the rotating part by means of an axle coupling, the specific connection being as follows: the wheel shaft connecting structure comprises a chuck and a connecting shaft, the chuck comprises two halves, the two halves are symmetrically assembled and encircle one end of the connecting shaft, the chuck is connected with the moving platform, and the other end of the connecting shaft is coaxially connected with the rotating part through a bearing.

In practice, the chuck and the connecting shaft serve as connecting members between the moving platform and the rotating member, respectively, which themselves are kept relatively stationary. Axial play is easy to occur between the chuck and the connecting shaft due to the self gravity of the chuck and the connecting shaft and the influence of other external factors (vibration); meanwhile, when the emergency switching system of the cableway is switched emergently and put into operation, the chuck and the connecting shaft are rotated relatively in the circumferential direction due to the fact that the chuck and the connecting shaft are difficult to bear the torque generated in the emergency switching process; in addition, when the bearing fails in long-term use, the connecting shaft rotates together with the rotating member and also rotates in the circumferential direction with respect to the chuck.

However, the axial movement between the chuck and the connecting shaft or the circumferential relative rotation between the chuck and the connecting shaft greatly affect the reliability of the connection between the moving platform and the rotating part, and further seriously affect the stability and reliability of the operation of the ropeway emergency system.

Disclosure of Invention

Technical problem to be solved

One of the purposes of the invention is to provide a wheel axle connecting structure, which is used for solving the problem that the reliability of connection between a chuck and a connecting shaft is greatly influenced because the chuck and the connecting shaft are easy to axially float and circumferentially rotate relatively in the conventional cableway emergency system.

The invention also aims to provide a cableway emergency transmission system based on the wheel shaft connecting structure, which is used for ensuring the stability and reliability of the operation of the cableway emergency system.

(II) technical scheme

In order to solve the above technical problems, the present invention provides, in one aspect, an axle coupling structure including a chuck and a coupling shaft; a positioning through hole is formed in the chuck; one end of the connecting shaft is axially provided with a positioning head and an annular clamping groove; the positioning through hole is embedded into the annular clamping groove and connected with the positioning head to form an axial positioning structure and a circumferential rotation positioning structure.

Preferably, the positioning through hole comprises a circular through hole and a plurality of first positioning teeth circumferentially arranged along the circular through hole, and a first positioning clamping groove is formed between every two adjacent first positioning teeth; the positioning head comprises a plurality of second positioning teeth arranged on the side wall of the connecting shaft along the circumference, and a second positioning clamping groove is formed between every two adjacent second positioning teeth; the first positioning teeth and the second positioning teeth are oppositely arranged and are attached side by side along the axial direction to form the axial positioning structure; and key bars are inserted into the first positioning clamping groove and the second positioning clamping groove which are oppositely spliced into a whole so as to form the circumferential rotating positioning structure.

Preferably, the first positioning teeth are uniformly distributed on the inner wall of the circular through hole in a circumferential manner; the second positioning teeth are circumferentially and uniformly distributed on the groove edge on one side of the annular clamping groove.

Preferably, in the invention, the aperture of the circular through hole is matched with the diameter of the side wall of the connecting shaft, and the length of the first positioning tooth in the radial direction is less than or equal to the depth of the annular clamping groove.

Preferably, the positioning head and the annular clamping groove are sequentially arranged from the end part to the inner side of the connecting shaft along the axial direction; the second positioning teeth are arranged on the outer side groove edge of the annular clamping groove, and the second positioning clamping groove and the groove bottom of the annular clamping groove are arranged on the same circumferential surface.

Preferably, the first positioning teeth and the second positioning teeth have the same structure, and include any one of a sector ring shape, a rectangular shape, a triangular shape and a semicircular shape.

Preferably, the invention also provides a cableway emergency transmission system in another aspect, which comprises a mobile platform, a rotating part and the axle coupling structure, wherein the axle coupling structure comprises a first shaft and a second shaft; the moving platform is connected with the chuck, and the other end of the connecting shaft is connected with the rotating part.

Preferably, the other end of the connecting shaft is connected with the rotating part through a bearing, and the rotating part comprises a driving wheel or an unpowered wheel.

(III) technical effects

The wheel shaft connecting structure provided by the invention has the advantages that the positioning through hole is matched with the annular clamping groove, so that the chuck is sleeved at one end of the connecting shaft and is matched and connected with the positioning head on the connecting shaft through the positioning through hole, and the axial positioning structure and the circumferential rotating positioning structure are formed, so that the axial positioning structure can better prevent the chuck and the connecting shaft from axially moving under the influence of the self gravity and other external factors, and the circumferential rotating positioning structure can powerfully prevent the chuck and the connecting shaft from relatively rotating along the circumferential direction under the action of larger torque, thereby ensuring the reliability of connection between the chuck and the connecting shaft.

According to the cableway emergency transmission system, due to the adoption of the wheel shaft connecting structure, the reliability of connection between the mobile platform and the rotating part is powerfully ensured, and the stability and the reliability of operation of the cableway emergency system are further ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of an axle coupling structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of the axle coupling arrangement according to an embodiment of the present invention;

FIG. 3 is a schematic view of a chuck according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a positioning head according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cableway emergency transmission system according to an embodiment of the present invention.

In the figure: 1. a chuck; 2. a connecting shaft; 3. positioning the through hole; 301. a circular through hole; 302. a first positioning tooth; 303. a first positioning slot; 4. positioning the head; 401. a second positioning tooth; 402. a second positioning slot; 5. an annular neck; 6. a mobile platform; 7. a rotating member; 8. a shear pin; 9. a bearing; 10. a key bar; 11. an emergency bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, one embodiment of the present invention provides an axle coupling structure including a chuck 1 and a connecting shaft 2; the chuck 1 is provided with a positioning through hole 3; one end of the connecting shaft 2 is provided with a positioning head 4 and an annular clamping groove 5 along the axial direction; the positioning through hole 3 is embedded into the annular clamping groove 5, and the positioning through hole 3 is connected with the positioning head 4 to form an axial positioning structure and a circumferential rotation positioning structure.

Specifically, the wheel axle coupling structure shown in this embodiment is configured to cooperate with the annular clamping groove 5 through the positioning through hole 3, so that the chuck 1 is sleeved at one end of the connecting shaft 2, and is cooperatively connected with the positioning head 4 on the connecting shaft 2 through the positioning through hole 3, and forms an axial positioning structure and a circumferential rotation positioning structure, so that the axial positioning structure better prevents the chuck 1 and the connecting shaft 2 from axially moving under the influence of its own gravity and other external factors, and the circumferential rotation positioning structure powerfully prevents relative rotation in the circumferential direction under the action of a large torque between the chuck 1 and the connecting shaft 2, thereby ensuring the reliability of connection between the chuck 1 and the connecting shaft 2.

It should be noted here that, since the positioning head 4 and the ring slot 5 are arranged side by side in the axial direction, and the positioning through hole 3 is embedded into the ring slot 5, the ring slot 5 axially positions one side edge of the chuck 1, and thus, in essence, the axial positioning structure axially positions the other side edge of the chuck 1, and the axial positioning structure is a stop structure that limits the axial relative movement between the chuck 1 and the connecting shaft 2, and the stop structure may be two stop blocks arranged in the axial direction, or a combination structure of a positioning block and a positioning opening arranged in the axial direction, but is not limited thereto; similarly, the circumferential rotation positioning structure is a stop structure for limiting relative circumferential rotation between the chuck 1 and the connecting shaft 2, and the stop structure may be a combined structure of a rectangular opening and a rectangular head, a combined structure for connecting the chuck 1 and the connecting shaft 2 through a pin shaft, or a combined structure for connecting the chuck 1 and the connecting shaft 2 through a key bar, but is not limited thereto.

Further, in the present embodiment, the positioning through hole 3 includes a circular through hole 301 and a plurality of first positioning teeth 302 circumferentially arranged along the circular through hole 301, and a first positioning slot 303 is formed between two adjacent first positioning teeth 302, see fig. 3; the positioning head 4 comprises a plurality of second positioning teeth 401 circumferentially arranged on the side wall of the connecting shaft 2, and a second positioning slot 402 is formed between two adjacent second positioning teeth 401, see fig. 4;

therefore, when the first positioning teeth 302 and the second positioning teeth 401 are arranged in a one-to-one correspondence manner, the corresponding first positioning slots 303 and the corresponding second positioning slots 402 are also arranged in a one-to-one correspondence manner, so that the first positioning teeth 302 and the second positioning teeth 401 which are arranged oppositely are attached side by side along the axial direction to form an axial positioning structure; the keybars 10 are inserted into the first positioning slot 303 and the second positioning slot 402 which are relatively spliced into a whole, so as to form a circumferential rotation positioning structure.

In one specific embodiment, the first positioning teeth 302 are uniformly distributed on the inner wall of the circular through hole 301 in a circumferential manner; the second positioning teeth 401 are uniformly distributed on the circumference of the groove edge on one side of the annular clamping groove 5; the number of the first positioning teeth 302 is the same as that of the second positioning teeth 401, and the first positioning teeth and the second positioning teeth are arranged in a one-to-one opposite mode.

Specifically, as can be seen from the structure shown in fig. 2, when the chuck 1 is assembled, the positioning through hole 3 corresponds to the positioning head 4, and the first positioning tooth 302 on the chuck 1 corresponds to the second positioning slot 402 on the positioning head 4, so that the chuck 1 moves axially toward the connecting shaft 2, and the positioning through hole 3 can pass through the positioning head 4 until the positioning through hole 3 is embedded into the annular slot 5; then, the chuck 1 is rotated by a certain angle until the first positioning teeth 302 on the chuck 1 are attached to the second positioning teeth 401 on the positioning head 4, and the attachment structure of the first positioning teeth 302 and the second positioning teeth 401 forms an axial positioning structure between the chuck 1 and the connecting shaft 2.

Meanwhile, when the first positioning teeth 302 and the second positioning teeth 401 are attached, the first positioning clamping grooves 303 on the chuck 1 and the second positioning clamping grooves 402 on the positioning head 4 are correspondingly spliced one by one to form closed clamping grooves, and the key bars 10 are correspondingly inserted into the closed clamping grooves, so that relative rotation between the chuck 1 and the connecting shaft 2 along the circumferential direction can be prevented, and the closed clamping grooves formed by splicing the first positioning clamping grooves 303 and the second positioning clamping grooves 402 and the key bars 10 correspondingly inserted form a circumferential rotation positioning structure.

Further, in order to ensure the compactness of the mounting structure at the annular clamping groove 5 of the chuck 1 and the connecting shaft 2, in the embodiment, when the design is specific, the aperture of the circular through hole 301 is matched with the diameter of the side wall of the connecting shaft 2, and the length of the first positioning tooth 302 along the radial direction is less than or equal to the depth of the annular clamping groove 5.

Further, in the present embodiment, the positioning head 4 and the ring-shaped clamping groove 5 are sequentially arranged from the end of the connecting shaft 2 to the inner side in the axial direction; the second positioning teeth 401 are disposed on the outer side of the ring slot 5, and the second positioning slot 402 and the slot bottom of the ring slot 5 are disposed on the same circumferential surface.

Specifically, the positioning head 4 is arranged on the outer side of the annular clamping groove 5, so that the key strips 10 are conveniently inserted, the positioning through holes 3 are connected with the positioning head 4, and a circumferential rotating positioning structure is formed; in addition, the second positioning clamping groove 402 and the bottom of the ring clamping groove 5 are arranged on the same circumferential surface, so that the closed clamping groove formed by splicing the first positioning clamping groove 303 and the second positioning clamping groove 402 and the groove wall of the ring clamping groove 5 just form a slot with an upper opening, and the keybar 10 is conveniently inserted into the slot to realize the circumferential positioning between the chuck 1 and the connecting shaft 2.

Further, in the present embodiment, the first positioning tooth 302 and the second positioning tooth 401 have the same structure, and include any one of a sector ring shape, a rectangular shape, a triangular shape, and a semicircular shape.

Specifically, as can be seen from the structures shown in fig. 3 and 4, the first positioning tooth 302 and the second positioning tooth 401 both adopt a fan-shaped ring structure, which makes the corresponding first positioning slot 303 and second positioning slot 402 also adopt a fan-shaped ring structure, so that the standard key bar 10 is inserted into the above-mentioned slots, thereby realizing the positioning between the chuck 1 and the connecting shaft 2 along the circumferential direction, but the structures of the first positioning tooth 302 and the second positioning tooth 401 are not limited to fan-shaped rings, and any one of a rectangle, a triangle, and a semicircle can be adopted, as long as through reasonable structural design, the first positioning tooth 302 and the second positioning tooth 401 can be axially attached into a whole, and the key bar 10 can be inserted into the closed slot formed by splicing the corresponding first positioning slot 303 and second positioning slot 402, so as to prevent the chuck 1 and the connecting shaft 2 from circumferentially rotating relatively.

Further, referring to fig. 5, another embodiment of the present invention provides a cableway emergency transmission system, which includes a mobile platform 6 and a rotating component 7, and further includes the above-mentioned axle coupling structure; the moving platform 6 is connected with the chuck 1, and the other end of the connecting shaft 2 is connected with the rotating part 7.

Specifically, in the emergency cableway transmission system shown in this embodiment, due to the adoption of the axle coupling structure, the corresponding connection part between the chuck 1 and the connection shaft 2 does not axially shift, and when the emergency cableway transmission system is switched and put into operation, the chuck 1 and the connection shaft 2 do not circumferentially rotate relative to each other even if bearing a large torque during emergency switching, so that the reliability of connection between the movable platform 6 and the rotating part 7 is strongly ensured, and the stability and reliability of operation of the emergency cableway transmission system are further ensured.

Further, in the present embodiment, the other end of the connecting shaft 2 is connected with the rotating member 7 through a bearing 9, and the rotating member 7 includes a driving wheel or an unpowered wheel.

Specifically, as can be seen from the structure shown in fig. 5, the chuck 1 is located at one end of the connecting shaft 2, a plurality of mounting holes are circumferentially arranged on the periphery of the chuck 1, the chuck 1 is fastened with the moving platform 6 into a whole by the shear pins 8 fitted in the respective mounting holes, and the other end of the connecting shaft 2 is connected with the rotating part 7 by the bearing 9; in this way, the wheel axle coupling structure strongly ensures the reliability of the respective connection between the mobile platform 6 and the rotating part 7.

In addition, as can be seen from the structure shown in fig. 5, an emergency bearing 11 is further sleeved in the middle of the connecting shaft 2, and the emergency bearing 11 is mounted on a fixed structure or component and is not in a working state at ordinary times; when the bearing 9 is clamped and the shear pin 8 is sheared due to overlarge torsion, the emergency bearing 11 starts to operate and plays a good role in supporting the connecting shaft 2 in a rotating way.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.