阅读说明：本技术 一种绳槽轮及绳牵引装置 (Rope sheave and rope traction device ) 是由 张人怡 张国纲 于 2021-02-01 设计创作，主要内容包括：本发明公开了一种绳槽轮及绳牵引装置。本发明的绳槽轮包括凹型曲形绳槽轮、挡圈式曲形绳槽轮,凹型曲形绳槽轮本体的周向设有呈曲线形的曲形环状凹槽,挡圈式曲形绳槽轮本体的周向设有呈曲线形的曲形环状绳槽,该曲形环状绳槽的两侧槽壁由曲形环状挡圈构成。绳牵引装置包括单曲形绳槽轮绳牵引装置、多曲形绳槽轮串联绳牵引装置、多曲形绳槽轮同向并联绳牵引装置和多曲形绳槽轮反向并联绳牵引装置,在所述的各绳牵引装置中均采用如上所述的绳槽轮。本发明的绳槽轮及绳牵引装置与现有技术相比,具有大大提高了对牵引绳的摩擦力,解决了牵引绳在绳槽轮中摩擦力不足的问题,防止牵引作业时牵引绳在绳槽轮中打滑,保证牵引装置安全运行,性能可靠。(The invention discloses a rope sheave and a rope traction device. The rope sheave comprises a concave curved rope sheave body and a check ring type curved rope sheave, wherein a curved annular groove is formed in the circumferential direction of the concave curved rope sheave body, a curved annular rope groove is formed in the circumferential direction of the check ring type curved rope sheave body, and two side groove walls of the curved annular rope groove are formed by curved annular check rings. The rope traction device comprises a single-curve rope sheave rope traction device, a multi-curve rope sheave series rope traction device, a multi-curve rope sheave co-directional parallel rope traction device and a multi-curve rope sheave reverse parallel rope traction device, wherein the rope sheaves are adopted in each rope traction device. Compared with the prior art, the rope sheave and the rope traction device have the advantages that the friction force of the traction rope is greatly improved, the problem that the friction force of the traction rope in the rope sheave is insufficient is solved, the traction rope is prevented from slipping in the rope sheave during traction operation, the safe operation of the traction device is ensured, and the performance is reliable.)

1. A rope sheave, characterized by: the rope sheave comprises a rope sheave body, wherein one or more annular grooves are formed in the circumferential direction of the rope sheave body, and the annular grooves are formed in a curved shape.

2. Rope sheave according to claim 1, characterized in that: the inner wall of the annular groove is a rough surface.

3. Rope sheave according to claim 1 or 2, characterized in that: the rope sheave is a concave curved rope sheave and comprises a concave curved rope sheave body, an annular groove is arranged in the circumferential direction of the concave curved rope sheave body, the annular groove is a curved annular groove, and the curved annular groove is in a curved shape in the axial direction of the concave curved rope sheave body.

4. Rope sheave according to claim 1 or 2, characterized in that: this rope sheave is a curved shape rope sheave of retaining ring formula, including the curved shape rope sheave body of retaining ring formula, the circumference of the curved shape rope sheave body of retaining ring formula sets up cyclic annular grooving, cyclic annular grooving is curved shape annular grooving, and the both sides cell wall of this curved shape annular grooving comprises curved shape cyclic annular retaining ring the axial of the curved shape rope sheave body of retaining ring formula curved shape annular grooving is the curvilinear figure.

5. Rope sheave according to claim 4, characterized in that: the curved annular retainer ring is an elastic retainer ring.

6. The utility model provides a single bent shape grooving wheel rope draw gear, includes into rope pinch roller, haulage rope, direction clamp plate, play rope pinch roller, play rope sling, fixed plate, advances rope sling, motor, reduction gear, transmission shaft, frame one, its characterized in that: the rope sheave of claim 4, wherein the rope sheave is a circlip type curved rope sheave, the body of the circlip type curved rope sheave is fixedly connected with one end of a transmission shaft, and the other end of the transmission shaft is connected with an output shaft of a motor through a speed reducer; the guide pressure plate is arranged on the circumferential periphery of the retaining ring type curved rope sheave; the traction rope penetrates through the through hole in the rope inlet guide rope sleeve, then is wound on the body of the check ring type curved rope sheave and then penetrates out of the through hole in the rope lifting sleeve, and the traction rope is clamped in the curved annular rope groove of the check ring type curved rope sheave.

7. The single curved sheave rope pulling apparatus as defined in claim 6, wherein: the rope feeding pinch roller and the rope discharging pinch roller are arranged below the retainer ring type curved rope sheave body, the rope lifting sleeve and the rope discharging pinch roller are installed together in a matched mode, and the rope feeding guide rope sleeve and the rope feeding pinch roller are installed together in a matched mode through the fixing plate.

8. The utility model provides a many bent shape rope sheave series connection rope draw gear, includes haulage rope, business turn over rope guide pin bushing one, bent shape rope sheave one assembly, bent shape rope sheave two assemblies, bent shape rope sheave three assemblies, business turn over rope guide pin bushing two, frame two, bent shape rope sheave one assembly includes concave type bent shape rope sheave one, bent shape rope sheave two assemblies include concave type bent shape rope sheave two, bent shape rope sheave three assemblies includes concave type bent shape rope sheave three, its characterized in that: the rope sheave of claim 3 is used as each of the concave curved rope sheave I, the concave curved rope sheave II and the concave curved rope sheave III, the rope sheave is a concave curved rope sheave, the first rope inlet and outlet guide sleeve is arranged on a housing of the second rope traction device frame on one side of the curved rope sheave assembly, and the second rope inlet and outlet guide sleeve is arranged on a housing of the second rope traction device frame on one side of the curved rope sheave assembly; the haulage rope passes first the winding in proper order of the first rope mouth that pulls on the curved shape rope sheave assembly concave type curved shape rope sheave I, curved shape rope sheave two assembly concave type curved shape rope sheave two and curved shape rope sheave three assembly concave type curved shape rope sheave three go up the back and wear out from second rope mouth that pulls on the rope guide sleeve two, wherein, the winding in proper order concave type curved shape rope sheave one concave type curved shape rope sheave two with concave type curved shape rope sheave three on the haulage rope block respectively the concave type curved shape rope sheave one concave type curved shape rope sheave two with concave type curved shape rope sheave three the body circumference set up cyclic annular be curved shape recess in.

9. The utility model provides a many bent shape rope sheave syntropy rope draw gear that connects in parallel, includes haulage rope, drive gear one, spiral rotation wheel, the bent shape rope sheave of many rope groove concave types, concave type bent shape rope sheave drive gear, transition gear, spiral wheel drive gear, frame three, its characterized in that: the multi-groove concave curved rope sheave is the concave curved rope sheave as claimed in claim 3, the first driving gear is meshed with the first concave curved rope sheave driving gear, the second concave curved rope sheave driving gear is fixedly connected to the shaft of the concave curved rope sheave, the transition gear is respectively meshed with the second concave curved rope sheave driving gear and the spiral runner driving gear, and the spiral runner driving gear and the concave curved rope sheave driving gear rotate in the same direction under the drive of the transition gear; the traction rope penetrates through a rope inlet first in the third rack and is wound on a first annular curved groove, a spiral groove and a second annular curved groove in the circumferential direction of the multi-rope groove concave curved rope sheave sequentially according to the rotating directions of the multi-rope groove concave curved rope sheave and the spiral rotating wheel, and then penetrates out of a rope outlet first in the third rack.

10. The utility model provides a reverse parallelly connected rope draw gear of many bent shape rope sheave, includes haulage rope, drive gear one, spiral rotation wheel, the bent shape rope sheave of many rope grooves concave type, concave type bent shape rope sheave drive gear, spiral rotation wheel drive gear, frame four, its characterized in that: the multi-groove concave curved rope sheave is the concave curved rope sheave according to claim 3, the first driving gear is engaged with a concave curved rope sheave driving gear which is fixedly connected to a concave curved rope sheave axle, wherein the first driving gear is engaged with the concave curved rope sheave driving gear which is engaged with the spiral pulley driving gear; the spiral rotating wheel transmission gear and the concave curved rope sheave transmission gear rotate reversely under the driving of the concave curved rope sheave transmission gear; the traction rope penetrates through a rope inlet second on the fourth rack and is wound on a first annular curved groove in the circumferential direction of the multi-rope groove concave curved rope sheave, a spiral groove of the spiral rotating wheel and a second annular curved groove in the circumferential direction of the multi-rope groove concave curved rope sheave in sequence according to the rotating directions of the multi-rope groove concave curved rope sheave and the spiral rotating wheel and then penetrates out of a rope outlet second on the fourth rack, and the rope winding method of the traction rope wound on the multi-rope groove concave curved rope sheave and the spiral rotating wheel adopts a character-shaped intersection method.

Technical Field

The invention belongs to the field of mechanical traction, hoisting operation and vehicle rescue, and particularly relates to a rope sheave and a rope traction device.

Background

The existing rope sheave used in a rope traction device usually adopts a structure that the circumferential contour lines of annular rope grooves are on the same radial plane, namely the circumferential contour lines of the annular rope grooves are in a linear structure in the axial direction of the rope sheave, when the rope traction device performs traction operation, the rope sheave has insufficient resistance, especially friction, on a traction rope, and the traction rope is easy to slip in the rope grooves of the rope sheave during traction, so that the traction force of the traction device is reduced, and serious safety accidents are easy to cause during traction operation.

Disclosure of Invention

The invention aims to provide a rope sheave which can greatly increase the friction force on a traction rope and prevent the traction rope from slipping in the sheave after being stressed, and a rope traction device which can be operated manually and can drive the traction rope to work by using a motor, aiming at the defects that the resistance, especially the friction force, of the traction rope is insufficient when the traction device performs traction operation on the existing rope sheave used in a rope traction device and the traction rope is easy to slip in the rope sheave during traction.

The technical scheme adopted by the invention is completed by the following modes: the rope sheave comprises a rope sheave body, wherein one or more annular grooves are formed in the circumferential direction of the rope sheave body, and the annular grooves are formed in a curved shape.

Further, the inner wall of the annular groove is a rough surface.

The rope sheave is a concave curved rope sheave and comprises a concave curved rope sheave body, an annular groove is arranged in the circumferential direction of the concave curved rope sheave body, the annular groove is a curved annular groove, and the curved annular groove is in a curved shape in the axial direction of the concave curved rope sheave body.

Further, the curved annular groove is in a wave-shaped curve.

The rope sheave is a retaining ring type curved rope sheave and comprises a retaining ring type curved rope sheave body, wherein an annular rope groove is formed in the circumferential direction of the retaining ring type curved rope sheave body, the annular rope groove is a curved annular rope groove, two side groove walls of the curved annular rope groove are formed by curved annular retaining rings, and the retaining ring type curved rope sheave body is in a curved shape in the axial direction.

Further, the curved annular rope groove is in a wave-shaped curve.

Further, the curved annular retainer ring is a circlip.

A rope traction device is a single-curve rope sheave rope traction device and comprises a rope inlet pinch roller, a traction rope, a guide pressure plate, a rope outlet pinch roller, a rope lifting sleeve, a fixing plate, a rope inlet rope guide sleeve, a motor, a speed reducer, a transmission shaft, a first rack and a rope sheave as described above, wherein the rope sheave is a check ring type curve rope sheave, the body of the check ring type curve rope sheave is fixedly connected with one end of the transmission shaft, and the other end of the transmission shaft is connected with an output shaft of the motor through the speed reducer; the guide pressure plate is arranged on the circumferential periphery of the retaining ring type curved rope sheave; after penetrating through the through hole in the rope feeding guide rope sleeve, the traction rope is wound on the curved rope sheave body of the check ring type and then penetrates out of the through hole in the rope lifting sleeve, wherein the traction rope is clamped into the curved annular rope groove of the curved rope sheave of the check ring type, and when the curved rope sheave of the check ring type rotates, the curved annular rope groove of the curved rope sheave of the check ring type generates certain friction force on the traction rope entering the rope groove, and meanwhile, the curved annular check rings on the two side groove walls of the curved annular rope groove generate clamping force on the traction rope under the action of force applied by the traction rope.

Furthermore, the rope feeding pinch roller and the rope discharging pinch roller are arranged below the retainer ring type curved rope sheave body, the rope lifting sleeve and the rope discharging pinch roller are installed together in a matched mode, and the rope feeding guide rope sleeve is installed together with the rope feeding pinch roller in a matched mode through a fixing plate.

Furthermore, the rope feeding guide rope sleeve is provided with a rotating shaft structure and a guide groove structure, when the check ring type curved rope sheave rotates, the guide groove structure swings through the rotating shaft structure on the rope feeding guide rope sleeve along with the rotation of the check ring type curved rope sheave, and the traction rope is always arranged in the curved annular rope groove.

A rope traction device is a multi-curved rope sheave series connection rope traction device adopting linkage rope pressing tensioning design and comprises a traction rope, a guide pressure plate, a first inlet and outlet rope guide sleeve, a first curved rope sheave assembly, a second curved rope sheave assembly, a first driving gear, a third curved rope sheave assembly, a second inlet and outlet rope guide sleeve, a second limiting wheel, a pinch roller assembly, a first limiting wheel and a second frame, wherein the first curved rope sheave assembly comprises a first guide sleeve, a first concave curved rope sheave, a first central shaft, a first driven gear, a first pinch roller and a first pressure receiving wheel, and a curved annular groove is formed in the circumferential direction of a body of the first concave curved rope sheave; the second curved rope sheave assembly comprises a second central shaft, a second concave curved rope sheave and a second driving gear, and a curved annular groove is formed in the body of the second concave curved rope sheave in the circumferential direction; the three assemblies of curved rope sheave include uide bushing two, driven gear two, concave type curved rope sheave three, center pin three, pinch roller two, pressurized wheel two, the body circumference of concave type curved rope sheave three be provided with curved annular groove, wherein:

the first curved rope sheave assembly, the second curved rope sheave assembly and the third curved rope sheave assembly are arranged in a shell of a second rope traction device frame in an isosceles triangle shape, wherein a central shaft of the second curved rope sheave assembly is located at a vertex angle of the triangle, and a central shaft of the first curved rope sheave assembly and a central shaft of the third curved rope sheave assembly are located at two bottom angles of the triangle respectively;

the first rope inlet and outlet guide sleeve is arranged on a shell of a second rope traction device rack positioned on one side of the curved rope sheave assembly, and the second rope inlet and outlet guide sleeve is arranged on a shell of the second rope traction device rack positioned on one side of the curved rope sheave assembly;

the traction rope penetrates through a first traction rope opening on the first inlet and outlet rope guide sleeve and is sequentially wound on a first concave curved rope sheave of a first curved rope sheave assembly, a second concave curved rope sheave of a second curved rope sheave assembly and a third concave curved rope sheave of a third curved rope sheave assembly and then passes out of a second traction rope opening on the second inlet and outlet rope guide sleeve, wherein the traction rope sequentially wound on the first concave curved rope sheave, the second concave curved rope sheave and the third concave curved rope sheave is respectively clamped into annular curved grooves which are circumferentially arranged on the first concave curved rope sheave body, the second concave curved rope sheave body and the third concave curved rope sheave body;

the first driving gear is arranged on an output shaft of the speed reducer, an input shaft of the speed reducer is connected with an output shaft of the motor, the first driving gear is meshed with the second driving gear, and the second driving gear is fixedly connected with the second concave curved rope sheave.

Furthermore, the head of a first guide sleeve in the first curved rope sheave assembly is conical, the head of the first guide sleeve is matched with a curved annular groove formed in the circumferential direction of the body of the first concave curved rope sheave, and when the first concave curved rope sheave rotates, the head of the first guide sleeve swings along with the curved annular groove formed in the circumferential direction of the body of the first concave curved rope sheave to guide the traction rope into the curved annular groove formed in the circumferential direction of the body of the first concave curved rope sheave.

Further, the pinch roller subassembly is established on two rope draw gear frames of bent shape rope sheave assembly below, the pinch roller subassembly includes driven pinch roller one, round pin axle, pinch roller subassembly fixed plate, driven pinch roller two, pinch roller subassembly fixed plate is inversion isosceles triangle, driven pinch roller one with driven pinch roller two is established respectively two base angle departments of pinch roller subassembly fixed plate, wherein, driven pinch roller one meets with bent shape rope sheave three assemblies, and driven pinch roller two meets with bent shape rope sheave assembly, the apex angle department of pinch roller subassembly fixed plate is equipped with and sells axle complex pinhole hole, pinch roller subassembly fixed plate is in the same place through two hinged joint of round pin axle and rope draw gear's frame.

A rope traction device is a multi-curved rope sheave same-direction parallel rope traction device and comprises a traction rope, a rope outlet pinch roller, a motor, a speed reducer, a first driving gear, a spiral rotating wheel shaft, a multi-rope groove concave curved rope sheave, a concave curved rope groove wheel shaft, a rope lifting block, a concave curved rope sheave transmission gear, a rope outlet rope lifting block, a transition gear, a transition rope lifting block, a spiral rotating wheel transmission gear and a frame III, wherein two or more curved annular grooves are formed in the circumferential direction of the multi-rope groove concave curved rope sheave; the first driving gear is connected with an output shaft of the speed reducer, an input shaft of the speed reducer is connected with an output shaft of the motor, the first driving gear is meshed with the concave curved rope sheave transmission gear, the concave curved rope sheave transmission gear is fixedly connected to a concave curved rope sheave shaft, the transition gear is respectively meshed with the concave curved rope sheave transmission gear and the spiral runner transmission gear, and the spiral runner transmission gear and the concave curved rope sheave transmission gear rotate in the same direction under the driving of the transition gear; the haulage rope passes first the winding is at first cyclic annular recess that is the curvilinear figure of the curved shape rope sheave of the concave shape of rope groove in the concave shape of rope groove week of the frame three according to the rotation direction of the curved shape rope sheave of the concave shape of rope groove and spiral rotation wheel in proper order, spiral groove of spiral rotation wheel, follow behind the recess that is the curvilinear figure of the curved shape rope sheave week of the concave shape of rope groove week first the play rope mouth in the frame three wears out, wherein, the haulage rope winding is all anticlockwise in the direction on the curved shape rope sheave of the concave shape of rope groove and the spiral rotation wheel.

A rope traction device is a multi-curved rope sheave reverse parallel rope traction device and comprises a traction rope, a rope outlet pinch roller, a motor, a speed reducer, a first driving gear, a spiral rotating wheel shaft, a multi-rope groove concave curved rope sheave, a concave curved rope sheave shaft, a concave curved rope sheave transmission gear, a rope outlet rope lifting block, a transition rope lifting block, a spiral rotating wheel transmission gear and a frame IV, wherein two or more curved annular grooves are formed in the circumferential direction of the multi-rope groove concave curved rope sheave; the first driving gear is connected with an output shaft of the speed reducer, an input shaft of the speed reducer is connected with an output shaft of the motor, the first driving gear is meshed with a concave curved rope sheave transmission gear, and the concave curved rope sheave transmission gear is fixedly connected to a concave curved rope sheave shaft; the spiral rotating wheel transmission gear and the concave curved rope sheave transmission gear rotate reversely under the driving of the concave curved rope sheave transmission gear; the haulage rope passes two rope inlets on the frame four twine in proper order according to the rotation direction of the curved shape rope sheave of the concave shape of multirope groove and spiral runner around the curved shape rope sheave of the concave shape of multirope groove upwards first cyclic annular be curvilinear recess, spiral runner's helicla flute, the curved shape rope sheave of the concave shape of multirope groove upwards second cyclic annular be curvilinear recess after follow the rope outlet two on the frame four wears out, wherein, the direction that the haulage rope twined on the curved shape rope sheave of the concave shape of multirope groove is counter-clockwise, the direction that the haulage rope twined on the spiral runner is all clockwise, promptly the rope winding method that the haulage rope twined on the curved shape rope sheave of the concave shape of the multirope groove and spiral runner adopts the font intersection method.

Compared with the prior art, the traction device has the advantages that the friction force of the traction rope is greatly improved, the problem that the friction force of the traction rope in the rope sheave is insufficient is solved, the traction rope is prevented from slipping in the rope sheave during traction operation, the safe operation of the traction device is ensured, and the performance is reliable.

Drawings

Fig. 1 is a schematic structural view of a concave curved rope sheave according to the present invention.

Fig. 2 is a schematic structural view of a retainer ring type curved rope sheave of the present invention.

Fig. 3 is a schematic structural view of a single-curve grooved pulley rope traction device of the invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a schematic structural view of a multi-curved rope sheave series rope traction device of the present invention.

Fig. 6 is a schematic structural diagram of a multi-curved rope sheave equidirectional parallel rope traction device of the invention.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a schematic structural view of a multi-curved rope sheave anti-parallel rope traction device of the present invention.

Fig. 9 is a top view of fig. 8.

In fig. 1 to 9, 1 denotes a concave curved rope sheave body; 1a represents a curved annular groove; 2 denotes a retainer ring type curved rope sheave body; 2a represents a curved annular rope groove; 2b denotes a curved annular collar; 3 denotes a rope feeding pinch roller; 4 denotes a traction rope; 5 denotes a guide platen; 6 represents the rope pinch roller; 7 denotes a rope sling; 8 denotes a fixing plate; 9 denotes a rope-feeding rope guide sleeve; 9a denotes a rotating shaft structure; 9b denotes a channel structure; 10 denotes a motor; 11 denotes a decelerator; 12 denotes a propeller shaft; 13 represents a first rope inlet and outlet guide sleeve; 13a represents a traction rope opening I; 14, a curved rope sheave assembly; 14a denotes a guide sleeve I; 14b denotes a concave curved rope sheave one; 14c denotes the central axis one; 14d denotes a driven gear one; 14e denotes puck one; 14f denotes the pressed wheel one; 15, curved rope sheave two assembly; 15a denotes a central axis two; 15b denotes a concave curved rope sheave two; 15c denotes a second drive gear; 16 denotes a first drive gear; 17 curved rope sheave three assemblies; 17a denotes a second guide sleeve; 17b denotes a driven gear two; 17c denotes a concave curved rope sheave three; 17d represents the central axis three; 17e denotes puck two; 17f denotes the pressed wheel II; 18 represents a second rope inlet and outlet guide sleeve; 18a represents a second traction rope opening; 19 denotes a second limit wheel; 20, a puck assembly; 20a denotes a driven pinch roller I; 20b denotes a pin; 20c denotes a puck assembly fixture plate; 20d represents a driven pinch roller II; 21 denotes a first limit wheel; 22 denotes a screw rotation wheel; 23 denotes a screw rotor shaft; 24 denotes a multi-groove type curved rope sheave; 25 concave curved sheave axle; 26 denotes a roping block; 27 denotes a concave curved rope sheave drive gear; 28 represents a rope-raising block; 29 denotes a transition gear; 30 denotes a transitional roping block; 31 denotes a helical rotor drive gear; 32 denotes rack one; 33 denotes a second rack; 34, rack three; 34a represents a rope inlet I; 34b represents a rope outlet I; 35 denotes rack four; 35a represents a second rope inlet; and 35b represents a second rope outlet.

Detailed Description

The invention will be further described in detail with reference to the following examples given in conjunction with the accompanying drawings:

example 1

Referring to fig. 1, a curved groove 1a is provided in the circumferential direction of a concave curved sheave body 1, the curved groove 1a is a wave-shaped curve in the axial direction of the concave curved sheave body 1, and the inner wall of the curved groove 1a is a rough surface.

Example 2

Referring to fig. 2, a curved rope sheave of a retainer ring type, a curved annular rope groove 2a is provided in a circumferential direction of a curved rope sheave body 2 of the retainer ring type, both side groove walls of the curved annular rope groove 2a are formed by elastic curved annular retainer rings 2b, the curved annular rope groove 2a is a wave-shaped curve in an axial direction of the curved rope sheave body 2 of the retainer ring type, and an inner wall of the curved annular rope groove 2a is a rough surface.

Example 3

Referring to the attached drawings 2, 3 and 4, a single-curve rope sheave rope traction device comprises a rope inlet pinch roller 3, a traction rope 4, a guide pressure plate 5, a rope outlet pinch roller 6, a rope lifting sleeve 7, a fixing plate 8, a rope inlet rope guide sleeve 9, a motor 10, a speed reducer 11, a transmission shaft 12, a frame 32 and a rope sheave, wherein:

the rope sheave is a check ring type curved rope sheave, the check ring type curved rope sheave body 2 is fixedly connected with one end of a transmission shaft 12, and the other end of the transmission shaft 12 is connected with an output shaft of a motor 10 through a speed reducer 11;

the traction rope 4 penetrates through a through hole in the rope inlet guide sleeve 9 and then is wound on the retaining ring type curved rope sheave body 2 and then penetrates out of the through hole of the rope lifting sleeve 7, the traction rope 4 is clamped in a curved annular rope groove 2a of the retaining ring type curved rope sheave, a rotating shaft structure 9a and a guide groove structure 9b are arranged on the rope inlet guide sleeve 9, and the rope inlet guide sleeve 9 is matched and installed with the rope inlet pinch roller 3 through a fixing plate 8;

the guide pressure plate 5 is arranged on the periphery of the retaining ring type curved rope sheave in the circumferential direction;

the rope feeding pinch roller 3 and the rope outlet pinch roller 6 are arranged below the retainer ring type curved rope sheave body 2, and the rope lifting sleeve 7 and the rope outlet pinch roller 6 are installed together in a matched mode.

When the single-curved-rope sheave rope traction device works, the traction rope 4 is guided into a traction rope channel formed by the check-ring curved-rope sheave and the guide pressure plate 5 at the through hole of the rope inlet guide rope sleeve 9 along with the rotation of the check-ring curved-rope sheave, and the traction rope 4 is clamped in the curved annular rope groove 2a of the check-ring curved-rope sheave in the traction rope channel; the traction rope 4 rotates to the through hole of the rope lifting sleeve 7 along with the check ring type curved rope sheave, is lifted out of the curved annular rope groove 2a by the rope lifting sleeve 7 and penetrates out of the through hole of the rope lifting sleeve 7. When lifting by crane the heavy object, haulage rope 4 tightly blocks under the effect of heavy object in the curved shape annular grooving 2a of retaining ring formula curved shape rope sheave makes curved shape annular grooving 2a produce great frictional force to haulage rope 4, and meanwhile, haulage rope 4 has further increased the frictional force of curved shape annular grooving 2a to haulage rope 4 under the effect of advancing rope pinch roller 3 and play rope pinch roller 6 to make and can not skid between haulage rope 4 and the curved shape rope sheave, guarantee to pull the operation and normally go on.

Example 4

Referring to the attached figure 5, the multi-curved rope sheave series rope traction device comprises a traction rope 4, a guide pressure plate 5, a first inlet and outlet rope guide sleeve 13, a first curved rope sheave assembly 14, a second curved rope sheave assembly 15, a first drive gear 16, a third curved rope sheave assembly 17, a second inlet and outlet rope guide sleeve 18, a second limit wheel 19, a pinch roller assembly 20, a first limit wheel 21 and a second frame 33, wherein the first curved rope sheave assembly 14 comprises a first guide sleeve 14a, a first concave curved rope sheave 14b, a first central shaft 14c, a first driven gear 14d, a first pinch roller 14e and a first pressure wheel 14f, and a curved annular groove is formed in the circumferential direction of a body of the first concave curved rope sheave 14 b; the second curved rope sheave assembly 15 comprises a second central shaft 15a, a second concave curved rope sheave 15b and a second driving gear 15c, and a curved annular groove is formed in the body of the second concave curved rope sheave 15b in the circumferential direction; the curved rope sheave three assembly 17 comprises a second guide sleeve 17a, a second driven gear 17b, a third concave curved rope sheave 17c, a third central shaft 17d, a second pinch roller 17e and a second compression roller 17f, and a curved annular groove is formed in the body of the third concave curved rope sheave 17c in the circumferential direction; wherein:

the first curved rope sheave assembly 14, the second curved rope sheave assembly 15 and the third curved rope sheave assembly 17 are arranged in a housing of a second rope traction device frame 33 in an isosceles triangle shape, wherein a central shaft two 15a of the second curved rope sheave assembly 15 is located at a vertex angle of the triangle, and a central shaft one 14c of the first curved rope sheave assembly 14 and a central shaft three 17d of the third curved rope sheave assembly 17 are located at two bottom angles of the triangle respectively;

the first in-out rope guide sleeve 13 is arranged on a shell of a second rope traction device rack 33 positioned on one side of the first curved rope sheave assembly 14, and the second in-out rope guide sleeve 18 is arranged on a shell of the second rope traction device rack 33 positioned on one side of the third curved rope sheave assembly 17;

the traction rope 4 passes through the traction rope opening 13a on the inlet and outlet rope guide sleeve I13, is sequentially wound on the concave curved rope sheave I14 b of the curved rope sheave I assembly 14, the concave curved rope sheave II 15b of the curved rope sheave II assembly 15 and the concave curved rope sheave III 17c of the curved rope sheave III assembly 17 and then passes out of the traction rope opening II 18a on the inlet and outlet rope guide sleeve II 18, wherein the traction rope 4 sequentially wound on the concave curved rope sheave I14 b, the concave curved rope sheave II 15b and the concave curved rope sheave III 17c is respectively clamped in annular curved grooves arranged in the circumferential direction of the body of the curved concave rope sheave I14 b, the concave curved rope sheave II 15b and the concave curved rope sheave III 17 c;

the head of a first guide sleeve 14a in the first curved rope sheave assembly 14 is conical, and the head of the first guide sleeve 14a is matched with a curved annular groove which is circumferentially arranged on the body of the concave first curved rope sheave 14 b;

the first driving gear 16 is arranged on an output shaft of the speed reducer, an input shaft of the speed reducer is connected with an output shaft of the motor, the first driving gear 16 is meshed with the second driving gear 15c, and the second driving gear 15c is fixedly connected with the second concave curved rope sheave 15 b;

the pinch roller assembly 20 is arranged on a second rope traction device frame 33 below the second curved rope sheave assembly 15, the pinch roller assembly 20 comprises a first driven pinch roller 20a, a pin shaft 20b, a pinch roller assembly fixing plate 20c and a second driven pinch roller 20d, the pinch roller assembly fixing plate 20c is an inverted isosceles triangle, the first driven pinch roller 20a and the second driven pinch roller 20d are respectively arranged at two bottom corners of the pinch roller assembly fixing plate 20c, the first driven pinch roller 20a is connected with a third curved rope sheave assembly 17, the second driven pinch roller 20d is connected with a first curved rope sheave assembly 14, a pin shaft hole matched with the pin shaft 20b is formed in the vertex angle of the pinch roller assembly fixing plate 20c, and the pinch roller assembly fixing plate 20c is hinged with a second frame 33 of the rope traction device through the pin shaft 20 b.

When the multi-curved rope sheave series rope traction device works, when the traction rope 4 in the traction rope opening one 13a on the inlet and outlet rope guide sleeve one 13 is under tension, at the moment, the traction rope opening one 13a becomes a rope inlet of the traction rope 4, the traction rope opening two 18a becomes a rope outlet of the traction rope 4, the traction rope 4 enters the guide sleeve one 14a through the traction rope opening one 13a on the inlet and outlet rope guide sleeve one 13, the traction rope 4 matched with the guide sleeve one 14a presses the pressure roller one 14f downwards, the pressure roller one 14f drives the curved rope sheave one assembly 14 to rotate anticlockwise by taking the central shaft one 14c as an axis, the curved rope sheave one assembly 14 pushes the driven pressure roller two 20d, so as to drive the pressure roller assembly 20 to swing clockwise by taking the pin shaft 20b as a rotating shaft, the pressure roller assembly fixing plate 20c drives the driven pressure roller one 20a to push the curved rope sheave three assemblies 17 to rotate by taking the central shaft three 17d as axes, after the pinch roller assembly 20 swings clockwise, the curved rope sheave three assembly 17 rotates anticlockwise, so that the pinch roller two 17e presses the traction rope 4 on the curved rope sheave two assembly 15, and the purpose of pressing and tensioning the rope is achieved; on the contrary, when the traction rope 4 in the traction rope opening two 18a on the rope inlet and outlet guide sleeve two 18 is under the action of tension, the working principle is the same, so that the bidirectional rope inlet and outlet can be realized during the operation of the single-curve rope sheave rope traction device.

Example 5

Referring to fig. 6 and 7, a multi-curve rope sheave co-directional parallel rope traction device comprises a traction rope 4, a rope outlet pinch roller 6, a motor 10, a reducer 11, a first driving gear 16, a spiral rotating wheel 22, a spiral rotating wheel shaft 23, a multi-groove concave curve rope sheave 24, a concave curve rope sheave shaft 25, a rope raising block 26, a concave curve rope sheave transmission gear 27, a rope outlet rope raising block 28, a transition gear 29, a transition rope raising block 30, a spiral rotating wheel transmission gear 31 and a frame three 34, wherein two or more curve annular grooves are formed in the circumferential direction of the multi-groove concave curve rope sheave 24; the first driving gear 16 is connected with an output shaft of the speed reducer 11, an input shaft of the speed reducer 11 is connected with an output shaft of the motor 10, the first driving gear 16 is meshed with a concave curved rope sheave transmission gear 27, the concave curved rope sheave transmission gear 27 is fixedly connected to a concave curved rope sheave shaft 25, the transition gear 29 is respectively meshed with the concave curved rope sheave transmission gear 27 and the spiral runner transmission gear 31, and the spiral runner transmission gear 31 and the concave curved rope sheave transmission gear 27 rotate in the same direction under the driving of the transition gear 29; the traction rope 4 penetrates through a rope inlet first 34a on the third rack 34 and is wound on a first annular curve-shaped groove on the circumference of the multi-rope groove concave curve-shaped rope sheave 24, a spiral groove of the spiral rotating wheel 22 and a second annular curve-shaped groove on the circumference of the multi-rope groove concave curve-shaped rope sheave 24 in sequence according to the rotation directions of the multi-rope groove concave curve-shaped rope sheave 24 and the spiral rotating wheel 22 and then penetrates out of a rope outlet first 34b on the third rack 34, wherein the winding directions of the traction rope 4 on the multi-rope groove concave curve-shaped rope sheave 24 and the spiral rotating wheel 22 are all anticlockwise.

When the multi-curved rope sheave equidirectional parallel rope traction device works, the motor 10 drives the first driving gear 16 to rotate through the speed reducer 11, the first driving gear 16 drives the first concave curved rope sheave transmission gear 27 to rotate, the concave curved rope sheave transmission gear 27 drives the multi-rope sheave concave curved rope sheave 24 to rotate through the concave curved rope sheave shaft 25, meanwhile, the concave curved rope sheave transmission gear 27 drives the spiral rotary wheel transmission gear 31 to rotate through the transition gear 29, the number of teeth of the spiral rotary wheel transmission gear 31 is the same as that of the concave curved rope sheave transmission gear 27, and under the driving of the transition gear 29, the spiral rotary wheel transmission gear 31 and the concave curved rope sheave transmission gear 27 rotate in the same direction; through the resistance that rope pinch roller 6 produced to haulage rope 4, produce tension between haulage rope 4 on the spiral runner 22 and concave type bent shape rope sheave drive gear 27, combine the curved shape annular groove of the circumference of many rope grooves concave type bent shape rope sheave 24 tight the clamp of haulage rope 4, realize the purpose of drawing the heavy object.

Example 6

Referring to fig. 8 and 9, a multi-curved-rope-sheave reverse parallel rope traction device includes a traction rope 4, a rope outlet pinch roller 6, a motor 10, a reducer 11, a first driving gear 16, a spiral turning wheel 22, a spiral turning wheel shaft 23, a multi-rope-groove-concave-shaped curved rope sheave 24, a concave-shaped curved rope-groove wheel shaft 25, a concave-shaped curved rope sheave transmission gear 27, a rope outlet rope raising block 28, a transition rope raising block 30, a spiral turning wheel transmission gear 31 and a frame four 35, wherein two or more curved annular grooves are formed in the circumferential direction of the multi-rope-groove-concave-shaped curved rope sheave 24; the first driving gear 16 is connected with an output shaft of the speed reducer 11, an input shaft of the speed reducer 11 is connected with an output shaft of the motor 10, the first driving gear 16 is meshed with a concave curved rope sheave transmission gear 27, the concave curved rope sheave transmission gear 27 is fixedly connected to a concave curved rope sheave shaft 25, wherein the first driving gear 16 is meshed with the concave curved rope sheave transmission gear 27, and the concave curved rope sheave transmission gear 27 is meshed with the spiral rotating wheel transmission gear 31; under the driving of the concave curved rope sheave transmission gear 27, the spiral rotating wheel transmission gear 31 and the concave curved rope sheave transmission gear 27 rotate reversely; the traction rope 4 penetrates through a rope inlet second 35a on the rack fourth 35 and is wound on a first annular curved groove on the periphery of the multi-rope groove concave curved rope sheave 24, a spiral groove of the spiral rotating wheel 22 and a second annular curved groove on the periphery of the multi-rope groove concave curved rope sheave 24 in sequence according to the rotation directions of the multi-rope groove concave curved rope sheave 24 and the spiral rotating wheel 22 and then penetrates out of a rope outlet second 35b on the rack fourth 35, wherein the traction rope 4 is wound on the multi-rope groove concave curved rope sheave 24 in an anticlockwise direction, the traction rope 4 is wound on the spiral rotating wheel 22 in a clockwise direction, and namely the rope winding method of the traction rope 4 on the multi-rope groove concave curved rope sheave 24 and the spiral rotating wheel 22 adopts an 8-shaped crossing method.

When the multi-curved rope sheave reverse parallel rope traction device works, the motor 10 drives the first driving gear 16 to rotate through the speed reducer 11, the first driving gear 16 drives the first concave curved rope sheave transmission gear 27 to rotate, the concave curved rope sheave transmission gear 27 drives the multi-rope sheave concave curved rope sheave 24 to rotate through the concave curved rope sheave shaft 25, meanwhile, the concave curved rope sheave transmission gear 27 drives the spiral rotating wheel transmission gear 31 to rotate, the number of teeth of the spiral rotating wheel transmission gear 31 is the same as that of the concave curved rope sheave transmission gear 27, and under the mutual meshing, the spiral rotating wheel transmission gear 31 and the concave curved rope sheave transmission gear 27 reversely rotate; through the resistance that rope pinch roller 6 produced to haulage rope 4, produce tension between haulage rope 4 on the spiral runner 22 and concave type bent shape rope sheave drive gear 27, combine the curved shape annular groove of the circumference of many rope grooves concave type bent shape rope sheave 24 tight the clamp of haulage rope 4, realize the purpose of drawing the heavy object.

The above description is only a preferred embodiment of the present invention, but not intended to limit the scope of the invention, and all simple equivalent changes and modifications made according to the claims and the description of the invention are also within the scope of the invention.