阅读说明：本技术 防压抗拉损的光缆牵引机 (Optical cable tractor capable of preventing compression and tensile loss ) 是由 不公告发明人 于 2020-11-10 设计创作，主要内容包括：本发明公开了一种防压抗拉损的光缆牵引机,光缆牵引机内部设有油箱、空滤、变速箱、发动机,光缆牵引机包括机架、传送牵引机构、压紧传动机构、紧急制动机构、支撑架、导线轮、把手、万向轮和车轮,传送牵引机构以水平方向设于机架下端,压紧传动机构平行设于传送牵引机构的上方,传送牵引机构、压紧传动机构分别与变速箱传动连接,紧急制动机构设于机架的上端,其下端与压紧传动机构相连,空滤的一侧设有排气管,紧急制动机构的一端与排气管相连,支撑架分别与机架的两侧活动连接,导线轮连接于机架上,导线轮位于传送牵引机构远离支撑架的一侧,把手倾斜设于机架远离支撑架的一侧,万向轮、车轮分别连接于机架底端。(The invention discloses an optical cable tractor capable of preventing pressure and tensile loss, wherein an oil tank, an air filter, a gearbox and an engine are arranged in the optical cable tractor, the optical cable tractor comprises a frame, a transmission traction mechanism, a compression transmission mechanism, an emergency braking mechanism, a support frame, a wire guide wheel, a handle, a universal wheel and wheels, the transmission traction mechanism is arranged at the lower end of the frame in the horizontal direction, the compression transmission mechanism is arranged above the transmission traction mechanism in parallel, the transmission traction mechanism and the compression transmission mechanism are respectively in transmission connection with the gearbox, the emergency braking mechanism is arranged at the upper end of the frame, the lower end of the emergency braking mechanism is connected with the compression transmission mechanism, an exhaust pipe is arranged at one side of the air filter, one end of the emergency braking mechanism is connected with the exhaust pipe, the support frame is respectively and movably connected with two sides of the frame, the wire guide wheel is connected to the frame, the wire guide wheel is positioned at one side of the transmission traction mechanism far away from the support frame, and the handle is obliquely arranged at one side of the frame far away from the support frame, the universal wheel and the wheels are respectively connected to the bottom end of the frame.)

1. The utility model provides an optical cable tractor of anti-pressure tensile loss, optical cable tractor inside is equipped with oil tank (1), empty (2), gearbox (3) and engine (4), its characterized in that: the optical cable tractor comprises a rack (5), a conveying traction mechanism (6), a pressing transmission mechanism (7), an emergency braking mechanism (8), a support frame (9), a guide wire wheel (10), a handle (11), a universal wheel (12) and wheels (13), wherein the conveying traction mechanism (6) is arranged at the lower end of the rack (5) in the horizontal direction, the pressing transmission mechanism (7) is arranged above the conveying traction mechanism (6) in parallel, the conveying traction mechanism (6) and the pressing transmission mechanism (7) are respectively in transmission connection with a gearbox (3), the emergency braking mechanism (8) is arranged at the upper end of the rack (5), the lower end of the emergency braking mechanism (8) is connected with the pressing transmission mechanism (7), an exhaust pipe (21) is arranged on one side of an air filter (2), and one end of the emergency braking mechanism (8) is connected with the exhaust pipe (21), the wire guiding device is characterized in that the support frame (9) is movably connected with two sides of the rack (5) respectively, the wire guiding wheels (10) are connected onto the rack (5), the wire guiding wheels (10) are positioned on one side, away from the support frame (9), of the conveying and traction mechanism (6), the handle (11) is obliquely arranged on one side, away from the support frame (9), of the rack (5), the universal wheels (12) and the wheels (13) are connected to the bottom end of the rack (5) respectively, the universal wheels (12) are arranged on the same side of the support frame (9), and the wheels (13) are arranged on the same side of the handle (11);

the pressing transmission mechanism (7) comprises a driving rotating wheel (71), a transmission crawler (72), a support rod (73), a moving block (74), a screw rod (75), a fixing block (76), a driving motor (77), a rotating wheel (78) and a chain (79), wherein the transmission crawler (72) is arranged in the horizontal direction, the driving rotating wheels (71) are respectively arranged at two ends of the transmission crawler (72), the driving rotating wheel (71) is connected with the gearbox (3) in a transmission manner, the inner circle side wall of the transmission crawler (72) is in contact with the driving rotating wheel (71), the support rod (73) is arranged in the horizontal direction, one end of the support rod (73) is connected with the driving rotating wheel (71) in a rotating manner, the other end of the support rod (73) is fixedly connected with the moving block (74), the moving block (74) is movably connected with the screw rod (75) in a threaded manner, and the screw rod (75) is symmetrically arranged in the vertical direction, two ends of the screw rod (75) are respectively and rotatably connected with a fixed block (76), one side of the fixed block (76) is fixed on the rack (5), the driving motor (77) is arranged on one side, away from the handle (11), of the moving block (74), a rotating wheel (78) is arranged at the movable end of the driving motor (77), and the rotating wheel (78) and the screw rod (75) are in transmission connection through a chain (79);

the emergency braking mechanism (8) comprises an air chamber (81), an air inlet (82), an air outlet (83), an air duct (84), a floating plate (85) and a connecting rod (86), the air chamber (81) is located at the top end of the rack (5), the air inlet (82) and the air outlet (83) are respectively arranged at two ends of the air chamber (81), an adjusting valve (831) is arranged on the air outlet (83), one end of the air duct (84) is connected with the air inlet (83), the other end of the air duct (84) is connected with the exhaust pipe (21), the floating plate (85) is arranged in the air chamber (81) in the horizontal direction, one end of the connecting rod (86) penetrates through the air chamber (81) to be connected with the floating plate (85), and the other end of the connecting rod (86) is connected with the driving rotating wheel (71) in a rotating mode;

the emergency braking mechanism (8) further comprises a hand wheel (87) and a wheel shaft (88), the wheel shaft (88) is arranged in the vertical direction, one end of the wheel shaft (88) is fixedly connected with the hand wheel (87), and the other end of the wheel shaft (88) is connected with the rotating wheel (78);

the side of support frame (9) is the T style of calligraphy, the both sides of frame (5) are equipped with carousel (51) respectively, one side fixed the meeting of frame (5) is kept away from with carousel (51) respectively to the one end that the cross-sectional area is little of support frame (9), a plurality of through-holes (511) have been arranged with the circumference in carousel (51), and one side that support frame (9) were kept away from in carousel (51) is equipped with buckle (52), the one end and frame (5) hinged joint of buckle (52), the other end and through-hole (511) of buckle (52) correspond the lock.

2. The compression-resistant and tension-loss-resistant optical cable pulling machine as claimed in claim 1, wherein: conveying drive mechanism (6) are including drive wheel (61), follow driving wheel (62), annular conveying circle (63) and bloated tight wheel (64), follow the lower extreme of driving wheel (62) symmetry switching in frame (5), the both sides from driving wheel (62) are located to drive wheel (61) symmetry, the interior circle lateral wall of annular conveying circle (63) with follow driving wheel (62) swing joint, the excircle lateral wall of annular conveying circle (63) meets with drive wheel (61) cooperation, the inside both ends of annular conveying circle (63) are located to bloated tight wheel (64) symmetry formula, the axis position coincidence setting from driving wheel (62), bloated tight wheel (64), annular conveying circle (63).

3. The optical cable pulling machine for preventing compression and tension loss of claim 2, wherein: the annular conveying ring (63) is filled with liquid oil.

4. The optical cable pulling machine for preventing compression and tension loss of claim 2, wherein: the outer side wall of the annular conveying ring (63) is provided with a plurality of grooves (631).

5. The optical cable pulling machine for preventing compression and tension loss of claim 2, wherein: a plurality of protrusions (611) are circumferentially arranged on the outer circular wall of the driving wheel (61), and the shape and the size of each protrusion (611) correspond to those of the groove (631).

6. The compression-resistant and tension-loss-resistant optical cable pulling machine as claimed in claim 1, wherein: be equipped with keyway (781) on runner (78) inside wall, the activity end of shaft (88), driving motor (77) corresponds with runner (78) linking department and is equipped with key piece (881), key piece (881) and keyway (781) cooperation are connected.

Technical Field

The invention relates to the technical field of equipment for optical fiber cables, in particular to an optical cable tractor capable of preventing compression and tensile loss.

Background

When the optical cable is laid, the optical cable needs to penetrate between two connected optical cable wells, and due to the fact that the distance is too long, the required traction force is large and cannot be achieved manually, the optical cable tractor exists. Due to the difference of the sizes of the optical cables, the optical cable tractor needs to adjust the optical cables with different sizes, but the process can not ensure enough traction force while realizing clamping force, and the traction efficiency is reduced.

The invention provides an optical cable traction machine capable of preventing compression and tensile loss, which aims to solve the problem of providing enough traction while ensuring pressing force, cannot cause damage to an optical cable and improves the general adaptability of the optical cable traction machine. Meanwhile, an automatic emergency braking mechanism is provided, so that the real-time monitoring effect is achieved, and corresponding adjustment can be made in time if a fault is found.

Disclosure of Invention

The invention aims to provide an optical cable tractor capable of preventing compression and tensile loss so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: an optical cable tractor capable of preventing compression and tensile loss is provided, wherein an oil tank, an air filter, a gearbox and an engine are arranged in the optical cable tractor. The optical cable tractor comprises a rack, a conveying traction mechanism, a pressing transmission mechanism, an emergency braking mechanism, a supporting frame, a wire guide wheel, a handle, universal wheels and wheels. The frame lower extreme is located with the horizontal direction to conveying drive mechanism, the aim at of setting: firstly, enough traction force is guaranteed to be provided, the traction efficiency is improved, and the smooth operation of traction work is guaranteed; and secondly, the purposes of preventing compression and tensile loss of the drawn optical cable can be realized. The pressing transmission mechanism is arranged above the conveying traction mechanism in parallel, and aims to enable the optical cable traction machine to be suitable for traction of optical cables of different sizes, and achieve the effect of traction transmission while ensuring pressing force. The transmission traction mechanism and the pressing transmission mechanism are in transmission connection with the gearbox respectively. The emergency braking mechanism is arranged at the upper end of the rack, and the lower end of the emergency braking mechanism is connected with the pressing transmission mechanism, so that the fault of the optical cable tractor can be found in time, and the emergency braking mechanism is combined with the pressing transmission mechanism to make corresponding adjustment. One side of the air filter is provided with an exhaust pipe, and one end of the emergency braking mechanism is connected with the exhaust pipe, so that the real-time monitoring effect on the working condition of the optical cable tractor and the full utilization of resources are realized by using gas discharged in the working process of the optical cable tractor. The support frames are respectively movably connected with the two sides of the frame and are used for ensuring the overall stability of the optical cable tractor in the working process. The wire wheel is connected in the frame, and the wire wheel is located the one side that the support frame was kept away from to conveying drive mechanism, and the roughness effect of optical cable is realized to the aim at of setting to prevent the emergence of the condition that the optical cable was drawn the in-process and is decreased. The handle is obliquely arranged on one side of the frame, which is far away from the support frame, and provides a support function for the movable optical cable tractor. The universal wheel and the wheels are respectively connected to the bottom end of the frame, the universal wheel and the supporting frame are arranged on the same side, and the wheels and the handle are arranged on the same side.

Furthermore, the transmission traction mechanism comprises a transmission wheel, a driven wheel, an annular transmission ring and an expansion wheel. The driven wheel is symmetrically connected to the lower end of the frame, and the driving wheels are symmetrically arranged on two sides of the driven wheel. The driving wheel and the driven wheel are main power sources of the transmission traction mechanism, and smooth operation of the transmission traction mechanism is guaranteed. The interior round lateral wall of annular conveying circle with follow driving wheel swing joint, the excircle lateral wall of annular conveying circle meets with the cooperation of drive wheel, and the aim at that sets up realizes the effect that the conveying was pull, when providing sufficient traction force, plays the effect of preventing pressing tensile loss. The two ends of the inside annular conveying ring are located to the tight wheel symmetry formula that expands, can guarantee the tight state of expanding of annular conveying ring, improve traction efficiency. The axial positions of the driven wheel, the expansion wheel and the annular conveying ring are overlapped.

Furthermore, the pressing transmission mechanism comprises a driving rotating wheel, a transmission crawler, a supporting rod, a moving block, a lead screw, a fixed block, a driving motor and a chain. The driving crawler belt is arranged in the horizontal direction, the driving rotating wheels are respectively positioned at two ends of the driving crawler belt, the driving rotating wheels are in transmission connection with the gearbox, and the inner circle side wall of the driving crawler belt is in contact with the driving rotating wheels. The transmission case is used for transmitting the driving rotating wheel to rotate, and the driving rotating wheel is matched with the transmission crawler belt to realize transmission, so that the smooth operation of traction is ensured. The supporting rod is arranged in the horizontal direction, one end of the supporting rod is connected with the driving rotating wheel in a rotating mode, and the other end of the supporting rod is fixedly connected with the moving block. The moving block drives the supporting rod to move, and the supporting rod drives the driving rotating wheel to move. The moving block is movably connected with the lead screw through threads, and relative motion can be generated between the moving block and the lead screw. The lead screw sets up with vertical direction symmetry, and the both ends of lead screw are rotated respectively and are connected with the fixed block, and on one side of fixed block was fixed in the frame, the aim at of fixed block setting: firstly, the smooth running of the rotary motion of the screw rod is ensured; and secondly, the moving range of the screw rod is limited, so that the moving block and the moving track of the driving rotating wheel are limited. The driving motor is arranged on one side, away from the handle, of the moving block, a rotating wheel is arranged at the movable end of the driving motor, and the rotating wheel and the lead screw are in transmission connection through a chain. The driving motor is started to drive the rotating wheel to do rotating motion, the lead screw is driven to move through the chain, relative motion is generated between the lead screw and the moving block, the moving block generates displacement, the moving block drives the driving rotating wheel to generate vertical reciprocating linear motion through the supporting rod, the distance between the pressing transmission mechanism and the transmission traction mechanism is adjusted, the pressing effect is achieved on optical cables of different sizes, and the universal adaptability of the optical cable tractor is improved.

Further, the emergency braking mechanism comprises an air chamber, an air inlet, an air outlet, an air duct, a floating plate and a connecting rod. The air chamber is located at the top end of the frame and is arranged to provide a basic air environment for the emergency braking mechanism. The air inlet and the air outlet are respectively arranged at two ends of the air chamber, and the air outlet is provided with an adjusting valve. The size of the air outlet speed can be adjusted by controlling the adjusting valve, so that a difference value is formed between the air inlet speed and the air outlet speed, and the regulation and control of the air pressure in the air chamber are realized. One end of the vent pipe is connected with the air inlet, and the other end of the vent pipe is connected with the exhaust pipe, so that the gas transportation bridge is realized. The floating plate is arranged in the air chamber in the horizontal direction, one end of the connecting rod penetrates through the air chamber to be connected with the floating plate, and the other end of the connecting rod is connected with the driving rotating wheel in a rotating mode. The floating plate generates displacement change due to the change of the air reserve in the air chamber, the connecting rod is driven to move, and the connecting rod drives the driving rotating wheel to move, so that the effect of emergency braking is realized, and the effect of preventing pressure and tensile loss is achieved.

Furthermore, the emergency braking mechanism further comprises a hand wheel and a wheel shaft. The wheel shaft is arranged in the vertical direction, one end of the wheel shaft is fixedly connected with the hand wheel, and the other end of the wheel shaft is connected with the rotating wheel. The emergency braking function can be realized through the hand wheel operated manually under the emergency condition, so that double insurance is achieved, and the phenomena of breaking and pressure loss of the optical cable in the traction process are avoided.

Further, annular transfer ring is inside to be filled with liquid oil, provides the certain elastic characteristic of annular transfer ring, when compressing tightly drive mechanism work, and the optical cable is because of the pressurized effect forms the arc sunken at annular transfer ring surface, aim at: firstly, the contact area between the optical cable and the annular transmission ring is enlarged, so that sufficient pressing force can be ensured, sufficient traction force can be provided, and the traction efficiency is improved; and secondly, the optical cable is wrapped and protected, so that the effects of pressure resistance and tensile loss resistance are realized. In addition, in the normal working process of the optical cable tractor, the liquid oil moves along with the movement of the annular transmission ring, when the optical cable tractor breaks down, the annular transmission ring loses a power source and stops moving, the liquid oil continuously moves due to the inertia of the liquid oil, the stress direction of the optical cable given by the annular transmission ring is changed through the friction force generated between the liquid oil and the annular transmission ring, and stress points of a plurality of optical cables are dispersed and added, so that the effect of preventing pressure and tensile loss is achieved before the emergency braking mechanism acts.

Further, be equipped with a plurality of recesses on the lateral wall of annular conveying circle, the aim at of setting: firstly, the friction force between the optical cable and the annular transmission ring is increased, and sufficient tension is provided for the traction optical cable; secondly, provide certain elasticity characteristic of annular transfer ring, realize the effect of anti-compression tensile loss.

Furthermore, a plurality of bulges are arranged on the outer circular wall of the driving wheel in a circumferential manner, and the shapes and the sizes of the bulges correspond to those of the grooves. The projections and the grooves are engaged, so that relative movement between the annular conveying ring and the driving wheel is realized.

Furthermore, a key groove is formed in the inner side wall of the rotating wheel, a key block is correspondingly arranged at the joint of the movable end of the wheel shaft and the driving motor and the rotating wheel, and the key block is connected with the key groove in a matched mode. Realize the transmission through the mating reaction between key piece and the keyway, also reached detachable effect simultaneously to harm driving motor when preventing the operation hand wheel.

Furthermore, the side of support frame is the T style of calligraphy, is convenient for realize the supporting role to optical cable tractor. The two sides of the rack are respectively provided with a turntable, one end of the support frame with a small cross section area is respectively fixedly connected with one side of the turntable, which is far away from the rack, the turntable is provided with a plurality of through holes in the circumference, one side of the turntable, which is far away from the support frame, is provided with a buckle, one end of the buckle is connected with the rack hinge, and the other end of the buckle is correspondingly buckled with the through holes. Through the control carousel motion, realize the upset of support frame, fix by the buckle again to this stability and the overall stability of optical cable tractor of guaranteeing the support frame ensure going on smoothly of pulling work.

Compared with the prior art, the invention has the following beneficial effects: the invention relates to an optical cable tractor capable of preventing compression and tensile loss

1. The purpose of the arrangement of the transmission traction mechanism is as follows: firstly, enough traction force is guaranteed to be improved, traction efficiency is improved, and smooth traction work is guaranteed to be carried out; secondly, in the normal working process of the optical cable tractor, the optical cable is wrapped and protected by the arrangement of the annular conveying ring, so that the purposes of preventing compression and tensile loss are achieved; thirdly, when the optical cable tractor breaks down, the self inertia of the liquid oil in the annular transmission ring is utilized to change the stress direction of the annular transmission ring on the optical cable, and the stress points of the optical cable are dispersed, so that the effects of pressure resistance and tensile loss resistance are achieved before the emergency braking mechanism acts.

2. The pressing transmission mechanism comprises a driving rotating wheel, a transmission crawler, a supporting rod, a moving block, a lead screw, a fixing block, a driving motor and a chain, the distance between the pressing transmission mechanism and the transmission traction mechanism is adjusted in a matching mode, the pressing effect on optical cables of different sizes is achieved, when the general adaptability of the optical cable traction machine is improved, sufficient traction force can be guaranteed to be provided, and the traction efficiency is improved.

3. The emergency braking mechanism is used for utilizing gas discharged in the working process of the optical cable tractor and making corresponding adjustment by combining the pressing transmission mechanism, so that the real-time monitoring effect on the working condition of the optical cable tractor is realized, and resources are fully utilized. In addition, the hand wheel can be arranged under emergency, and the emergency braking effect is realized manually, so that double insurance is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the overall construction of a compression and tension loss resistant cable pulling apparatus of the present invention;

FIG. 2 is a rear schematic view of the overall construction of the compression and tension loss resistant cable pulling apparatus of the present invention;

FIG. 3 is a schematic view of the connection of the components of the compression and tension loss resistant cable pulling apparatus of the present invention;

FIG. 4 is a schematic diagram of the construction of the transfer pulling mechanism of the compression and tension loss resistant cable pulling machine of the present invention;

FIG. 5 is an enlarged schematic view of a partial structure of the overall mechanism of the compression and tension loss preventing cable pulling machine of the present invention;

FIG. 6 is a schematic view of a portion of the emergency braking mechanism of the compression and tension loss resistant cable pulling apparatus of the present invention;

FIG. 7 is a schematic structural view of a support frame of the compression and tension loss resistant cable pulling machine of the present invention;

in the figure: 1. an oil tank; 2. an air filter 21 and an exhaust pipe; 3. a gearbox; 4. an engine; 5. the device comprises a frame 51, a turntable 511, through holes 52 and a fastener; 6. the conveying traction mechanism 61, a driving wheel 611, a protrusion 62, a driven wheel 63, an annular conveying ring 631, a groove 64 and an expansion wheel; 7. the device comprises a pressing brake mechanism 71, a driving rotating wheel 72, a transmission crawler 73, a support rod 74, a moving block 75, a lead screw 76, a fixed block 77, a driving motor 78, a rotating wheel 781, a key groove 79 and a chain; 8. the emergency braking mechanism comprises an emergency braking mechanism 81, an air chamber 82, an air inlet 83, an air outlet 831, a valve 84, an air duct 85, a floating plate 86, a connecting rod 87, a hand wheel 88, a wheel shaft 881 and a key block; 9. a support frame; 10. a wire guide wheel; 11. a handle; 12. a universal wheel; 13. and (7) wheels.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides the following technical solutions: an optical cable tractor capable of preventing compression and tensile loss is provided, wherein an oil tank 1, an air filter 2, a gearbox 3 and an engine 4 are arranged in the optical cable tractor. The optical cable tractor comprises a rack 5, a conveying traction mechanism 6, a pressing transmission mechanism 7, an emergency braking mechanism 8, a support frame 9, a wire guide wheel 10, a handle 11, a universal wheel 12 and wheels 13, wherein the conveying traction mechanism 6 is arranged at the lower end of the rack 5 in the horizontal direction, the pressing transmission mechanism 7 is arranged above the conveying traction mechanism 6 in parallel, the conveying traction mechanism 6 and the pressing transmission mechanism 7 are respectively in transmission connection with a gearbox 3, the emergency braking mechanism 8 is arranged at the upper end of the rack 5, the lower end of the emergency braking mechanism 8 is connected with the pressing transmission mechanism 7, one side of an air filter 2 is provided with an exhaust pipe 21, one end of the emergency braking mechanism 8 is connected with the exhaust pipe 21, the support frame 9 is respectively in movable connection with two sides of the rack 5, the wire guide wheel 10 is connected to the rack 5, the wire guide wheel 10 is positioned at one side of the conveying traction mechanism 6 far away from the support frame 9, the handle 11 is obliquely positioned at one side of the rack 5 far away from the support frame 9, the universal wheel 12 and the wheel 13 are respectively connected to the bottom end of the frame 5, the universal wheel 12 is arranged on the same side of the support frame 9, and the wheel 13 is arranged on the same side of the handle 11.

The operation handle 11 moves the optical cable tractor to a specified position under the action of the universal wheels 12 and the wheels 13, and the support frame 9 is put down and supported on the ground to ensure the stability of the optical cable tractor; the power supply is communicated, the gearbox 3 and the engine 4 start to work, and the oil tank 1 supplies oil to the engine 4; the gearbox 3 is in transmission connection with the engine 4 and then transmits the transmission traction mechanism 6; one end of the optical cable is placed into the optical cable tractor through the guide wheel 10, the pressing transmission mechanism 7 is started, and the optical cable traction work is started; gas generated by the engine 4 in the traction process is introduced into the air filter 2 to realize the purification and filtration functions, and the purified gas is introduced into the emergency braking mechanism 8 through the exhaust pipe 21; when the power supply is suddenly cut off or the optical cable tractor breaks down, the emergency braking mechanism 8 starts to work, the pressing transmission mechanism 7 is lifted upwards, and the optical cable is taken out, so that the effects of preventing pressing and tensile loss are achieved.

The conveying traction mechanism 6 comprises a driving wheel 61, a driven wheel 62, an annular conveying ring 63 and an expansion wheel 64, the driven wheel 62 is symmetrically connected to the lower end of the rack 5 in a switching mode, the driving wheel 61 is symmetrically arranged on two sides of the driven wheel 62, the inner circle side wall of the annular conveying ring 63 is movably connected with the driven wheel 62, the outer circle side wall of the annular conveying ring 63 is matched and connected with the driving wheel 61, the expansion wheel 64 is symmetrically arranged at two ends inside the annular conveying ring 63, and the driven wheel 62, the expansion wheel 64 and the annular conveying ring 63 are overlapped in axial line positions.

The power supply is connected, the transmission traction mechanism 6 is started, the transmission wheel 61 and the driven wheel 62 are respectively driven by the gearbox 3 to drive the annular transmission ring 63 to do rotary motion, the expansion wheel 64 plays a role in expansion in the process, the optical cable is arranged above the annular transmission ring 63, and the annular transmission ring 63 can be driven to do horizontal linear motion, so that the traction effect is achieved.

The pressing transmission mechanism 7 comprises a driving rotating wheel 71, a transmission crawler 72, a support rod 73, a moving block 74, a screw rod 75, a fixed block 76, a driving motor 77, a rotating wheel 78 and a chain 79, wherein the transmission crawler 72 is arranged in the horizontal direction, the driving rotating wheels 71 are respectively positioned at two ends of the transmission crawler 72, the driving rotating wheel 71 is in transmission connection with the gearbox 3, the inner circular side wall of the transmission crawler 72 is in contact with the driving rotating wheel 71, the support rod 73 is arranged in the horizontal direction, one end of the support rod 73 is in rotating connection with the driving rotating wheel 71, the other end of the support rod 73 is fixedly connected with the moving block 74, the moving block 74 is movably connected with the screw rod 75 through threads, the screw rod 75 is symmetrically arranged in the vertical direction, the two ends of the screw rod 75 are respectively in rotating connection with the fixed block 76, one side of the fixed block 76 is fixed on the rack 5, the driving motor 77 is arranged at one side of the moving block 74 far away from the handle 11, and the movable end of the driving motor 77 is provided with the rotating wheel 78, the rotating wheel 78 and the screw rod 75 are in transmission connection through a chain 79.

The power supply is connected, the pressing transmission mechanism 7 is started, the driving motor 77 drives the rotating wheel 78 to do rotating motion, the rotating wheel 78 drives the lead screw 75 through the chain 79, the moving block 74 and the lead screw 75 generate relative motion and do vertical reciprocating linear motion on the lead screw 75, the moving block 74 drives the driving rotating wheel 71 to generate vertical displacement through the supporting rod 73, and therefore the pressing transmission mechanism adapts to optical cables of different sizes and presses the optical cables; the transmission case 3 drives the driving wheel 71 to rotate, the driving wheel 71 and the transmission crawler 72 move in a matched mode, friction force is generated between the transmission crawler 72 and the optical cable, and therefore transmission is achieved, and the traction transmission mechanism 6 is matched to complete traction work.

The emergency braking mechanism 8 comprises an air chamber 81, an air inlet 82, an air outlet 83, an air duct 84, a floating plate 85 and a connecting rod 86, wherein the air chamber 81 is positioned at the top end of the rack 5, the air inlet 82 and the air outlet 83 are respectively arranged at two ends of the air chamber 81, an adjusting valve 831 is arranged on the air outlet 83, one end of the air duct 84 is connected with the air inlet 83, the other end of the air duct 84 is connected with the exhaust pipe 21, the floating plate 85 is arranged in the air chamber 81 in the horizontal direction, one end of the connecting rod 86 penetrates through the air chamber 81 to be connected with the floating plate 85, and the other end of the connecting rod 86 is connected with the driving rotating wheel 71 in a rotating manner.

The gas enters the ventilation pipeline 84 from the exhaust pipe 21, enters the gas chamber 81 from the gas inlet 82 through the ventilation pipeline 84, and is discharged to the outside from the gas outlet 83; by controlling the regulating valve 831, the gas outlet speed of the gas is smaller than the gas inlet speed, the gas content in the gas chamber 81 is increased, the pressure is increased, the floating plate 85 is lowered, the floating plate 85 drives the connecting rod 86 to generate displacement, and the connecting rod 86 drives the driving rotating wheel 71 to do linear motion until the gas pressure in the gas chamber 81 is kept constant and does not move any more; when the optical cable tractor breaks down, the air chamber 81 loses the air supply source, and the air outlet 83 still continues to exhaust outwards, so that the content of the gas in the air chamber 81 is reduced, the pressure is reduced, the floating plate 85 rises from the reduced pressure, the connecting rod 86 is driven to displace, and the connecting rod 86 drives the driving rotating wheel 71 to rise linearly, so that the emergency braking effect is realized, and the effect of preventing pressure and tensile loss is achieved.

The emergency brake mechanism 8 further comprises a hand wheel 87 and a wheel shaft 88, wherein the wheel shaft 88 is arranged in the vertical direction, one end of the wheel shaft 88 is fixedly connected with the hand wheel 87, and the other end of the wheel shaft 88 is connected with the rotating wheel 78.

In an emergency, the hand wheel 87 can be manually operated to realize an emergency braking function, so that double insurance is achieved, and the phenomenon that the optical cable is broken and damaged by pressure in the traction process is avoided.

The annular conveying ring 63 is filled with liquid oil, provides the annular conveying ring 63 with certain elastic characteristic, when compressing tightly the work of drive mechanism 7, the optical cable is because of the pressurized effect forms the arc sunken on the surface of annular conveying ring 63, aim at: firstly, the contact area between the optical cable and the annular transmission ring 63 is enlarged, so that sufficient pressing force can be ensured, sufficient traction force can be provided, and the traction efficiency is improved; and secondly, the contact surface of the optical cable and the annular conveying ring 63 is wrapped and protected, so that the effects of pressure resistance and tensile loss resistance are realized. In addition, in the normal working process of the optical cable tractor, the liquid oil moves along with the movement of the annular transmission ring 63, when the optical cable tractor breaks down, the annular transmission ring 63 loses the power source and stops moving, the liquid oil continuously moves due to the inertia of the liquid oil, the stress direction of the optical cable, which is given by the annular transmission ring 63, is changed through the friction force generated between the liquid oil and the annular transmission ring 63, the stress points of a plurality of optical cables are dispersed and added, and therefore the effect of preventing pressure and tensile loss is achieved before the emergency braking mechanism 8 acts.

Be equipped with a plurality of recesses 631 on the lateral wall of annular conveying circle 63, the aim at of setting: firstly, the friction force between the optical cable and the annular transmission ring 63 is increased, and sufficient pulling force is provided for the traction optical cable; secondly, the annular conveying ring 63 has certain elastic characteristics, and the effects of preventing compression and tensile loss are achieved.

A plurality of protrusions 611 are circumferentially arranged on the outer circumferential wall of the transmission wheel 61, and the shape and size of the protrusions 611 correspond to the grooves 631. The projection 611 engages with the groove 631 to effect relative movement between the endless transfer ring 63 and the drive wheel 61.

Be equipped with keyway 781 on the runner 78 inside wall, the movable end of shaft 88, driving motor 77 corresponds with runner 78 junction and is equipped with key piece 881, and key piece 881 is connected with keyway 781 cooperation. The transmission is realized through the cooperation between the key block 881 and the key groove 781, and the detachable effect is also achieved at the same time to prevent damage to the driving motor 77 when the hand wheel 87 is operated.

The side of the supporting frame 9 is T-shaped, two sides of the rack 5 are respectively provided with a rotating disc 51, one end of the supporting frame 9 with a small cross section area is respectively fixedly connected with one side of the rotating disc 51 far away from the rack 5, a plurality of through holes 511 are arranged on the circumference of the rotating disc 51, one side of the rotating disc 51 far away from the supporting frame 9 is provided with a buckle 52, one end of the buckle 52 is hinged with the rack 5, and the other end of the buckle 52 is correspondingly buckled with the through holes 511. The support frame 9 is turned over by controlling the movement of the turntable 51, and then the support frame is fixed by the fastener 52, so that the stability of the support frame 9 and the overall stability of the optical cable tractor are ensured, and the smooth operation of the traction is ensured.

The working principle of the invention is as follows: 1. the operation handle 11 moves the optical cable tractor to a specified position under the action of the universal wheels 12 and the wheels 13;

2. the support frame 9 is turned over by controlling the movement of the turntable 51, and then is fixed by the buckle 52, so that the stability of the support frame 9 and the overall stability of the optical cable tractor are ensured;

3. the power supply is communicated, the gearbox 3 and the engine 4 start to work, the oil tank 1 supplies oil to the engine 4, and the gearbox 3 is in transmission connection with the engine 4;

4. the transmission traction mechanism 6 is started, the transmission wheel 61 and the driven wheel 62 are respectively transmitted by the gearbox 3 to drive the annular transmission ring 63 to rotate, the liquid oil in the annular transmission ring 63 moves along with the annular transmission ring, and the expansion wheel 64 plays a role in expansion in the process;

5. guiding one end of the optical cable into the optical cable tractor through a guide wheel 10 and placing the optical cable above the annular transmission ring 63;

6. the driving motor 77 is started, the driving motor 77 drives the rotating wheel 78 to do rotary motion, the rotating wheel 78 drives the lead screw 75 through the chain 79, the moving block 74 and the lead screw 75 generate relative motion and do vertical reciprocating linear motion on the lead screw 75, the moving block 74 drives the driving rotating wheel 71 to generate vertical displacement through the supporting rod 73, and therefore the optical cable pressing device is suitable for optical cables of different sizes and achieves a pressing effect on the optical cables;

meanwhile, the optical cable forms an arc-shaped recess on the surface of the annular conveying ring 63 due to the compression action, so that the contact surface between the optical cable and the annular conveying ring 63 is increased, and the wrapping protection effect is formed;

7. gas generated by the engine 4 in the traction process is introduced into the air filter 2 to realize the purification and filtration functions, and the purified gas is introduced into the emergency braking mechanism 8 through the exhaust pipe 21;

8. the gas enters the ventilation pipeline 84 from the exhaust pipe 21, enters the gas chamber 81 from the gas inlet 82 through the ventilation pipeline 84, and is discharged to the outside from the gas outlet 83;

by controlling the regulating valve 831, the gas outlet speed of the gas is smaller than the gas inlet speed, the gas content in the gas chamber 81 is increased, the pressure is increased, the floating plate 85 is lowered, the floating plate 85 drives the connecting rod 86 to generate displacement, and the connecting rod 86 drives the driving rotating wheel 71 to do linear motion until the gas pressure in the gas chamber 81 is kept constant and does not move any more;

9. when the power supply is suddenly cut off or the optical cable tractor breaks down, the air supply source of the air chamber 81 is lost, the air outlet 83 still continuously exhausts air, so that the content of the air in the air chamber 81 is reduced, the pressure is reduced, the floating plate 85 rises from the air supply source and drives the connecting rod 86 to displace, and the connecting rod 86 drives the driving rotating wheel 71 to rise linearly, so that the emergency braking effect is realized, and the effect of preventing pressure and tensile loss is achieved;

under emergency, the movable end of the driving motor 77 can be separated from the rotating wheel 78, the wheel shaft 88 is connected with the rotating wheel 78 through the matching effect between the key block 881 and the key groove 781, the hand wheel 87 is manually operated, the chain 79 drives the screw rod 75, the moving block 74 and the screw rod 75 generate relative motion, the driving rotating wheel 71 is driven by the supporting rod 73 to generate displacement in the vertical direction, the emergency braking effect is realized, and double insurance is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.