CN118001632A - Comfortable high-strength impact-resistant speed difference device - Google Patents

Abstract

The invention relates to a comfortable high-strength impact-resistant speed differential device which comprises a shell, a rotating assembly and a hoisting assembly, wherein the shell comprises a left shell, a right shell, a shaft sleeve and a lock pin, and the hoisting assembly is arranged in a hoisting hole. The left shell and the right shell are directly made into a framework for installing the rotating assembly, and the rotating assembly can be covered from the outer side, so that the working tension of the bearing speed difference device is realized, and the internal assembly is effectively protected; the gland is pressed on the disc and a plurality of first steel balls are designed between the first steel balls to roll and bear, the suspender and the disc are fixed together, and the gland supports the shell of the whole speed differential device, so that the speed differential device can rotate by 360 degrees even in hoisting; the rotary table rotates to release the rope/belt, the main coil spring stores force, the auxiliary spring carries out reverse force storage through reversing of the reversing gear part, and the auxiliary spring provides reverse acting force to counteract the elasticity of part of the main coil spring no matter stretching or shrinking the rope belt, so that the operation is easy and the recovery is stable.

Description

Comfortable high-strength impact-resistant speed difference device

Technical Field

The invention relates to the field of safety equipment, in particular to a comfortable high-strength impact-resistant speed difference device.

Background

Currently, the differential speed is used for high-altitude safety operation, is used for releasing the safety ropes/belts and recovering the ropes/belts, and is required to bear a specified pulling force due to the high-altitude operation. However, the current speed differential has some disadvantages:

1. The rotating assembly of the speed differential device is designed with a bearing framework, so that the hoisting requirement is met, the shell of the speed differential device only plays a role of simply protecting the rotating assembly, and does not bear the pulling force of the speed differential device when in work, the rotating assembly inside the speed differential device can be protected by the shell, the pulling force of the speed differential device when in work can be borne, the former structure is simplified, and meanwhile, the whole safety and reliability are ensured;

2. When the speed differential device in the market is hoisted, the hoisting position of the upper end of the shell of the speed differential device cannot rotate, so that the whole speed differential device is clamped at a certain angle when bearing a certain tensile force, and the problem of unbalanced stress is caused;

3. When the rope/belt is released, the speed difference device stores force through the coil spring, so that the rope/belt is convenient to recover when contracted, but when the rope/belt is used, the longer the rope/belt is, the larger the coil spring stores force, the tension of the coil spring needs to be overcome when the speed difference device is operated, so that the labor is wasted, and meanwhile, the speed difference device is used for aloft work, the operation is very inconvenient, unsafe, the rope/belt cannot be stably recovered when recovered, and the starting speed is high and unsafe;

4. The outside design of the safety device speed differential ware that the high altitude construction used in the past has a bellied U type handle, and in the use, bellied U type handle occupies very big volume, carries and in the use, bellied U type handle occupation space, and the operation is used easily to interfere.

Disclosure of Invention

In order to solve the technical problems, the invention provides the comfortable high-strength impact-resistant speed difference device which is ingenious in design, reasonable and compact in structure, high in structural strength and comfortable to operate.

The technical scheme of the invention is as follows:

The comfortable high-strength impact-resistant speed differential device comprises a shell, a rotating assembly and a hoisting assembly, wherein the shell comprises a left shell, a right shell, a shaft sleeve and a lock pin, the shaft sleeve is arranged in the middle of the inner side of the left shell, a shaft hole of the shaft sleeve is communicated with the outer side of the left shell, a mounting through hole is formed in the middle of the right shell, the left shell and the right shell are buckled to form an integral shell, the lock pin penetrates through the mounting through hole of the right shell and then penetrates through the shaft hole of the shaft sleeve to extend out of the left shell to be fixed, the periphery of the left shell and the periphery of the right shell are connected through rivet riveting, the rotating assembly is arranged in the integral shell, and the rotating assembly is rotatably arranged on the shaft sleeve; the upper end of the integral shell formed by buckling the left shell and the right shell is reserved with a hoisting hole for hoisting, and the lower end of the integral shell is reserved with a rope/belt telescopic port for a rotating assembly of the speed differential device; and a hoisting assembly is arranged in the hoisting hole.

The upper ends of the left shell and the right shell are respectively provided with a section of reinforced convex edge, and the reinforced convex edges of the left shell and the right shell are riveted through rivets after being buckled; the inner side of the left shell is provided with a left groove, the inner side of the right shell is provided with a right groove, and the left groove and the right groove form a cavity for the rotating assembly to move after the left shell and the right shell are buckled; the left shell and the shaft sleeve are integrally formed by adopting aluminum alloy or titanium alloy; the right shell is integrally formed by adopting aluminum alloy or titanium alloy.

The rotating assembly comprises a turntable, a main coil spring, an auxiliary coil spring and a reversing gear part, wherein the turntable, the main coil spring, the auxiliary coil spring and the reversing gear part are arranged and installed in a shell of the speed differential device; the middle of the outer side of the turntable is surrounded by a rope/belt; the other end of the shaft sleeve is movably inserted into the middle of the turntable, the middle of the left shell and the middle of the right shell are penetrated and riveted through a lock pin, one end of the lock pin penetrates into the middle of the turntable after penetrating through the middle of the right shell, penetrates into the interior of the shaft sleeve, and finally penetrates out from the end part of the left shell to rivet; one side of the shaft sleeve is provided with a clamping slot for clamping the inner side end of the main coil spring of the rotating assembly.

The reversing gear part comprises a main gear, reversing gears and an annular internal gear, wherein the main gear is arranged in the middle of one side of the turntable, three reversing gears are uniformly meshed with the outer side of the main gear, the three reversing gears are rotatably arranged on the inner side of the right shell, the outer sides of the three reversing gears are meshed with the inner side of the annular internal gear, and the inner ends of the auxiliary coil springs are fixedly connected on the outer side of the annular internal gear.

The rotary table comprises a left rotary table, a right rotary table, an annular sleeve and an annular bulge, wherein the annular bulge is arranged on the inner side of the left rotary table, the annular sleeve is arranged on the inner side of the right rotary table, the left rotary table is clamped into the annular sleeve of the right rotary table through the annular bulge, one end of the shaft sleeve extends into the middle of the inner part of the annular sleeve, a right main coil spring is arranged in the annular sleeve, and the outer end of the main coil spring is fixedly connected onto the annular sleeve.

The hoisting assembly comprises a hanging rod, a disc, a gland and first steel balls, wherein the lower end of the hanging rod is connected with the middle position of the disc, the gland is sleeved outside the hanging rod, the gland is positioned above the disc, a lower annular channel is arranged at the position of the disc, a circle of the gland is provided with an upper annular channel, a plurality of first steel balls are designed between the gland and the disc, the lower ends of the first steel balls are positioned in the lower annular channel in a rolling way, and the upper ends of the first steel balls are positioned in the upper annular channel; the upper end designs in the casing of speed differential ware has the circular slot that holds gland, first steel ball and disc, and open the upper end in the middle of the circular slot has the through-hole, and gland, first steel ball and disc are located the circular slot from last down in proper order, and the jib upper end stretches out a section length from the through-hole in the middle of the casing upper end circular slot of speed differential ware.

The upper part of the length is provided with a transverse through hole for hoisting connection; an annular side cover is arranged below one circle of the outer side of the gland, and the annular side cover is shielded outside the first steel balls; the middle of the suspender is further provided with an anti-drop ring at the upper position, and the anti-drop ring is blocked at the outer side of the upper end of the housing of the speed differential device.

The speed differential device is characterized in that a ring sleeve is further arranged on a circular groove on the shell of the speed differential device, the ring sleeve is sleeved on the outer side of the suspender, the lower end of the ring sleeve is fixed on the outer side of a through hole on the circular groove, an annular groove is formed in the middle of the inner side of the ring sleeve, a plurality of second steel balls or a nylon ring is arranged in the annular groove, the outer sides of the second steel balls are located in the annular groove in a rolling mode, and the inner sides of the second steel balls are rolled on the outer peripheral surface of the suspender.

The speed differential device also comprises a fitting type automatic return handle, wherein the fitting type automatic return handle comprises a main body, a torsion spring and a lock pin, two sides of the inner side of the upper end of the main body are respectively provided with an ear, each ear is provided with a mounting hole, the main body is clamped at the upper end of one side of a shell of the speed differential device through two ears, the lock pin penetrates through the mounting hole of one side of the ear, then penetrates through a reserved hole on the shell, and finally penetrates out of the mounting hole of the other side of the ear to be locked; the torsion spring is also sleeved on the lock pin, one end of the torsion spring is connected to the upper surface of the ear, and the other end of the torsion spring is connected to the upper surface of the shell; the main body is an arc-shaped plate which is attached to the outer side edge of the shell; a groove is respectively designed in the middle of two sides of the main body, and a plurality of hollowed-out holes are arranged in the middle of the two grooves; the inner side of the main body is provided with wavy bulges.

The outer side of the turntable is provided with a disc-shaped bulge in a circle, a plurality of grooves with openings on the peripheral surface are uniformly arranged at the positions, close to the edges, of the disc-shaped bulge, a swinging block in a groove-like shape is rotatably arranged in the groove, one end of the swinging block is rotatably arranged in the groove, close to the inner side, of the swinging block, and a spring is arranged between the position, close to the outer side, of the same end of the swinging block and the inner wall of the groove; an inward protruding stop block is arranged in the shell corresponding to the installation side of the swinging block.

The invention has the advantages that:

The design is ingenious, the structure is reasonable and compact, the left shell and the right shell are directly made into a framework for installing the rotating assembly, the rotating assembly can be covered from the outer side, the working tension of the bearing speed difference device is realized, and the internal assembly is effectively protected;

the gland is pressed on the disc and a plurality of first steel balls are designed between the first steel balls to roll and bear, the suspender and the disc are fixed together, and the gland supports the shell of the whole speed differential device, so that the speed differential device can rotate by 360 degrees even in hoisting;

When the auxiliary coil springs are designed to work, the rotary table rotates to release the ropes/belts, the main coil springs store force, the auxiliary springs reverse the force through reversing the reversing gear parts, the auxiliary springs provide a reverse acting force to offset the elasticity of part of the main coil springs no matter whether the rope belts are stretched or contracted, so that the spring force is large even if the auxiliary coil springs are stretched for a long time, the auxiliary coil springs are easy to operate, the auxiliary coil springs can not be recovered suddenly during recovery, the recovery is stable, and the double-spring interaction design is adopted to realize stable release and recovery, so that the operation is labor-saving;

The handle is designed to be capable of being automatically attached to the upper surface of the shell, so that the occupied space of the handle is reduced as much as possible, and the interference problem is effectively avoided during operation.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a vertical cross-sectional view of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a transverse cross-sectional view of the present invention.

Fig. 5 is a longitudinal cross-sectional view of the present invention.

Fig. 6 is an enlarged schematic view of the lifting assembly of fig. 2.

Fig. 7 is a schematic perspective view of the second embodiment of the present invention.

Fig. 8 is an enlarged partial schematic view of fig. 3.

FIG. 9 is a schematic cross-sectional view of a pendulum mass of a turntable of the present invention.

Fig. 10 is a schematic view of a raised stop within the housing of the present invention.

Detailed Description

Referring to fig. 1-10, the comfortable high-strength impact-resistant speed differential device comprises a shell 5, a rotating assembly 10 and a hoisting assembly 100, wherein the shell 5 comprises a left shell 501, a right shell 502, a shaft sleeve 503 and a locking pin 504, the shaft sleeve 503 is arranged in the middle of the inner side of the left shell 501, a shaft hole of the shaft sleeve 503 is communicated with the outer side of the left shell 501, a mounting through hole is arranged in the middle of the right shell 502, the left shell 501 and the right shell 502 are buckled to form an integral shell, the locking pin 504 penetrates through the mounting through hole of the right shell 502 and then penetrates through the shaft hole of the shaft sleeve 503 to extend out of the left shell 501 to be fixed, the periphery of the left shell 501 and the periphery of the right shell 502 are connected through rivet riveting, the rotating assembly 10 is mounted in the integral shell, and the rotating assembly 10 is rotatably mounted on the shaft sleeve 503. A hoisting hole 507 for hoisting is reserved at the upper end of an integral shell formed after the left shell 501 and the right shell 502 are buckled, and a rope/belt telescopic opening 508 for a rotating assembly 10 of a speed differential device is reserved at the lower end of the integral shell; and a hoisting assembly is arranged in the hoisting hole 507.

The shell 5 comprises a left shell 501 and a right shell 502, the left shell 501 and the right shell 502 are buckled and fixed together, one end of a shaft sleeve 503 is arranged in the middle of the inner side of the left shell 501, the other end of the shaft sleeve 503 is movably inserted into the middle of the turntable 101, the middle of the left shell 501 and the right shell 502 is penetrated and riveted through a locking pin 504, one end of the locking pin 504 penetrates into the middle of the turntable 101 after passing through the middle of the right shell 502, penetrates into the shaft sleeve 503, and finally penetrates out from the end of the left shell 501 for riveting.

The upper ends of the left shell 501 and the right shell 502 are respectively provided with a section of reinforcing convex edge 505, and the reinforcing convex edges 505 of the left shell 501 and the right shell 502 are riveted through rivets 506 after being buckled.

The inner side of the left shell 501 is provided with a left groove, the inner side of the right shell 502 is provided with a right groove, and the left groove and the right groove form a movable chamber for the rotating assembly 10 after the left shell 501 and the right shell 502 are buckled.

The left shell 501 and the shaft sleeve 503 are integrally formed by adopting aluminum alloy or titanium alloy; the right housing 502 is integrally formed from an aluminum alloy or a titanium alloy.

The rotating assembly 10 comprises a rotary disc 101, a main coil spring 102, an auxiliary coil spring 103 and a reversing gear part 104, wherein the rotary disc 101, the main coil spring 102, the auxiliary coil spring 103 and the reversing gear part 104 are arranged and installed inside a shell 5 of a speed differential device, the rotary disc 101 is rotatably installed inside the shell 5 of the speed differential device, a shaft sleeve 503 is arranged in the shell 5, the rotary disc 101 is rotatably installed above the shaft sleeve 503, a cavity for accommodating the main coil spring 102 is formed inside the rotary disc 101, the outer end of the main coil spring 102 is fixedly connected with the inner side wall of the cavity of the rotary disc 101, the inner end of the main coil spring 102 is fixedly connected with the shaft sleeve 503, one side of the rotary disc 101 is provided with the reversing gear part 104 which changes into the direction opposite to the rotation of the rotary disc 101, the auxiliary coil spring 103 is sleeved outside the reversing gear part 104, the outer end of the auxiliary coil spring 103 is fixedly connected with the inner side of the shell, and the inner end of the auxiliary coil spring 103 is fixedly connected with the reversing gear part 104; a rope/belt is wound around the middle of the outer side of the turntable 101; one side of the shaft sleeve is provided with a clamping slot for clamping the inner side end of the main coil spring of the rotating assembly. One end of the main coil spring is clamped in the shaft sleeve, and meanwhile, the lock pin is inserted into the shaft sleeve, so that the lock pin not only further clamps the end part of the main coil spring, but also effectively fills the interior of the shaft sleeve, the tensile strength of the shaft sleeve is improved, and the two ends of the lock pin are fixedly riveted on the two sides of the left shell and the right shell to form a shell with high tensile strength.

The reversing gear 104 comprises a main gear 1041, a reversing gear 1042 and a ring-shaped internal gear 1043, the main gear 1041 is arranged in the middle of one side of the turntable 101, three reversing gears 1042 are uniformly meshed with the outer side of the main gear 1041, the three reversing gears are rotatably arranged on the inner side of the right shell, the outer sides of the three reversing gears 1042 are meshed with the inner side of the ring-shaped internal gear 1043, and the inner ends of the auxiliary coil springs 103 are fixedly connected on the outer side of the ring-shaped internal gear 1043.

The turntable 101 comprises a left turntable 1011, a right turntable 1012, an annular sleeve 1013 and an annular protrusion 1014, wherein the annular protrusion 1014 is arranged on the inner side of the left turntable 1011, the annular sleeve 1013 is arranged on the inner side of the right turntable 1012, the left turntable 1011 is clamped into the annular sleeve 1013 of the right turntable 1012 through the annular protrusion 1014, one end of the shaft sleeve 503 extends into the middle of the inner part of the annular sleeve 1013, the right main coil spring 102 is arranged in the annular sleeve 1013, and the outer end of the main coil spring 102 is fixedly connected on the annular sleeve 1013.

The hoisting assembly 100 comprises a boom 1, a disc 2, a gland 3 and first steel balls 4, wherein the lower end of the boom 1 is connected with the middle position of the disc 2, the gland 3 is sleeved outside the boom 1, the gland 3 is positioned above the disc 2, a lower annular channel 21 is arranged on the periphery of the upper surface of the disc 2, an upper annular channel 31 is arranged on the periphery of the lower surface of the gland 3, a plurality of first steel balls 4 are arranged between the gland 3 and the disc 2, the lower ends of the first steel balls 4 are positioned in the lower annular channel 21 in a rolling way, and the upper ends of the first steel balls 4 are positioned in the upper annular channel 31; the upper end designs in the casing 5 of speed differential ware has the circular slot 51 that holds gland 3, first steel ball 4 and disc 2, and the upper end is opened in the middle of the circular slot 51 has the through-hole, and gland 3, first steel ball 4 and disc 2 are located circular slot 51 from top to bottom in proper order, and the length is stretched out in the through-hole in the middle of the circular slot 51 in the casing 5 upper end of speed differential ware to jib 1 upper end.

The length is provided with a transverse through hole 11 for hoisting connection. The transverse through holes are designed to be holes for subsequent further connection with other hoisting components such as hoisting rings.

An annular side cover 32 is arranged below one circle of the outer side of the gland 3, and the annular side cover 32 is shielded on the outer sides of the plurality of first steel balls 4. The first steel ball is prevented from falling off, and the safety and reliability are realized.

A ring sleeve 52 is further arranged on a circular groove 51 on a shell 5 of the speed differential device, the ring sleeve 52 is sleeved on the outer side of the hanging rod 1, the lower end of the ring sleeve 52 is fixed on the outer side of a through hole on the circular groove 51, an annular groove 53 is designed in the middle of the inner side of the ring sleeve 52, a plurality of second steel balls 54 or a nylon ring is installed in the annular groove 53, the outer sides of the second steel balls 54 are located in the annular groove 53 in a rolling mode, and the inner sides of the second steel balls 54 are located on the outer peripheral surface of the hanging rod 1 in a rolling mode. The loop design is matched with the second steel ball and the nylon ring to ensure that the suspension rod has no interference problem in the rotation process, and especially when bearing 3-5 tons of gravity, the rotation is unobstructed, and the suspension rod is safe and reliable.

The middle of the suspender 1 is further provided with an anti-drop ring 6, and the anti-drop ring 6 is blocked outside the upper end of the housing 5 of the speed differential device. The anti-drop ring is designed safely in order to prevent the suspender from falling off from the circular groove or the ring sleeve of the shell; the anti-drop ring can be integrally formed with the suspender, and also can be designed into a clamp spring, and a clamping groove is correspondingly designed on the suspender; the integral molding requires that the outer diameter of the anti-drop ring is the same as or slightly smaller than the inner diameter of the inner hole of the gland, so that smooth installation is ensured.

The invention also designs and installs the laminating type automatic return handle outside the body, the said laminating type automatic return handle 20 includes body 201, torsion spring 202, lock pin 203, the body 201 upper end inner side both sides design a ear 204 separately, there are mounting holes in each ear 204, the body 201 is blocked in the upper end of one side of the body 5 of the speed differential unit through two ears 204, and after passing through the mounting hole of one side ear 204 through lock pin 203, pass the reserved hole above the body 5 again, finally pass out from the mounting hole of the other side ear 204 and lock; the torsion spring 202 is also sleeved on the lock pin 203, one end of the torsion spring 202 is connected on the ear 204, and the other end of the torsion spring 202 is connected on the shell 5; the main body 201 is provided as an arc-shaped plate which is attached to the outer side of the housing 5. The outer side of the shell is reserved with a mounting hole for mounting the handle, the mounting hole is used for being matched with the mounting of the handle, the shell of the normal speed differential device is formed by buckling two half shells to form a complete shell, a convex edge exists at the buckling and splicing position, and the mounting hole can be reserved in advance on the convex edge; one end of the torsion spring is inserted into the pore on the ear for fixing, and the other end of the torsion spring is inserted into the pore on one side of the bulge for completing the installation of the torsion spring. The lock pin penetrates through the ears of the main body and is riveted at the rear two ends of the reserved mounting holes of the shell. A groove 205 is respectively designed in the middle of two sides of the main body 201, and a plurality of hollowed-out holes 206 are arranged in the middle of the two grooves 205. The grooves and the hollowed-out holes are designed to reduce the overall material requirement of the handle, reduce the cost and the weight, and ensure the strength of the handle; the design of the groove on the inner side of the main body can avoid the convex edge existing on the outer side of the shell of the speed differential device. The inner side of the main body 201 is provided with a wave-shaped protrusion 207. The design is convenient for hold the main part of handle, conveniently mentions in order to better laminating people's hand. When the novel lifting handle is used, the main body of the lifting handle is normally attached to one side of the shell under the action of the spring force of the torsion spring, so that the main body does not protrude too much, the outer side of the shell can be provided with a groove for accommodating the main body in advance, and the main body can be attached to the shell better to form a whole, and does not protrude outside, so that the interference problem is effectively avoided; when the handle is needed to lift the speed differential device, the main body is manually changed into a rotary mode from the attaching mode to overcome the elasticity of the torsion spring, the speed differential device can be easily lifted by holding the main body, and when the speed differential device is not used, the main body automatically resets and attaches under the action of the torsion spring after being loosened, so that interference is avoided.

A disc-shaped bulge 401 is designed on the outer periphery of the turntable 101, a plurality of grooves 402 with openings on the outer peripheral surface are uniformly designed at the positions, close to the edges, of the disc-shaped bulge 401, a groove-shaped swinging block 403 is rotatably installed in the grooves 402, one end of the swinging block 403 is rotatably installed in the grooves 402, and a spring 404 is installed between the position, close to the outer side, of the same end of the swinging block 403 and the inner wall of the grooves 402; an inward protruding stop 405 is mounted on the inner side of the housing 5 corresponding to the mounting side of the pendulum 403. When the rope belt is released at a normal constant speed, the swing block is designed to overcome the spring force under the action of centrifugal force once the rope belt is released by the speed difference device suddenly, one end of the swing block is rotated and thrown out from the groove, and one end of the swing block is stopped at one side of the protruding stop block in the shell by the vertical horse after being thrown out, so that a locking state is formed, the rope belt cannot be pulled down continuously, and the safety problems such as falling prevention are achieved; once the rotary table is contracted or no lower pulling force exists, the spring presses the swinging block back into the groove, and the swinging block is positioned in the groove and cannot interfere the rotary table to rotate.

When the auxiliary winding spring is used, the rope/belt is pulled out from the opening of the shell, the turntable is driven to rotate relative to the shaft sleeve and the lock pin, the turntable rotates, the shell does not rotate, one end of the main winding spring is fixed on the turntable, the other end of the main winding spring is fixed on the shaft sleeve, the shaft sleeve and the shell are fixed integrally, the main winding spring contracts and stores force, the main gear on the outer side of the turntable integrally rotates with the turntable, the three reversing gears are meshed to rotate, the three reversing gears rotate with the outer annular internal gear in a reverse direction, the auxiliary winding spring is pulled to reversely tighten and store force, when the rope/belt is released for a long time, the auxiliary winding spring is reversely stressed and is not required to spend a great force when the main winding spring is stressed, and the auxiliary winding spring can reversely counteract most of force components when the rope/belt end component (safety hook) is operated, so that labor is saved when the auxiliary winding spring is operated, and the safety coefficient of high-altitude operation is provided;

The upper end of the shell of the speed differential device extends out of the lifting hole through the lifting component and is connected with lifting equipment, the rotating component of the speed differential device extends out of the opening through a rope and is pulled down, once the speed differential device is pulled down quickly, the speed differential device is automatically locked, at the moment, the rotating component transmits the pulling down force to the shaft sleeve and the upper part of the lock pin, the lock pin is arranged in the shaft sleeve, the shaft sleeve transmits the force to the left shell, the lock pin transmits the force to the right shell, and thus the left shell and the right shell bear the working pulling force; in order to better improve the shell tension, two sides of the lifting hole at the upper end of the left shell and the right shell are respectively provided with a section of reinforced convex edge and rivet riveting structures, so that the parts can bear the tension of more than 3 tons, the positions of the lifting holes of the left shell and the right shell are not reinforced with the reinforced convex edge, and the positions of the lifting holes of the left shell and the right shell can also bear the tension of more than 1 ton. The high bearing type casing of the speed differential device does not need a keel suite in the interior, the keel suite replaced by the casing is a product casing, all the stress is finally borne by the casing, and the casing is made of high-strength materials.

When the transverse through hole at the upper end of the suspender is connected with other hoisting components such as a hoisting ring, and the like, the shell of the speed differential device transfers bearing force to the suspender when the speed differential device is pulled downwards, the suspender is pulled upwards, the disc and the suspender are of an integrated structure, the disc supports the gland, the upper end of the gland supports the inner wall of the circular groove at the upper end of the shell, the shell is integrally supported, a channel is designed between the gland and the disc, a first steel ball is arranged in the channel, the shell of the speed differential device can rotate relative to the suspender while bearing 3-5 tons of weight, 360-degree rotation is realized, and the speed differential device is free of blocking and safe and reliable. The left half and the right half of the ring sleeve are also integrally formed with the shell, and are buckled and connected into a whole through later assembly.

Claims (10)

1. The comfortable high-strength impact-resistant speed differential device is characterized by comprising a shell, a rotating assembly and a hoisting assembly, wherein the shell comprises a left shell, a right shell, a shaft sleeve and a lock pin, the shaft sleeve is arranged in the middle of the inner side of the left shell, a shaft hole of the shaft sleeve is communicated with the outer side of the left shell, a mounting through hole is formed in the middle of the right shell, the left shell and the right shell are buckled to form an integral shell, the lock pin penetrates through the shaft hole of the shaft sleeve from the mounting through hole of the right shell and then penetrates out of the left shell to be fixed, the periphery of the left shell and the periphery of the right shell are connected through rivet riveting, the rotating assembly is arranged in the integral shell, and the rotating assembly is rotatably arranged on the shaft sleeve; the upper end of the integral shell formed by buckling the left shell and the right shell is reserved with a hoisting hole for hoisting, and the lower end of the integral shell is reserved with a rope/belt telescopic port for a rotating assembly of the speed differential device; and a hoisting assembly is arranged in the hoisting hole.

2. The comfortable high-strength impact-resistant speed differential device according to claim 1, wherein the upper ends of the left shell and the right shell are respectively provided with a section of reinforced convex edge, and the reinforced convex edges of the left shell and the right shell are riveted through rivets after being buckled; the inner side of the left shell is provided with a left groove, the inner side of the right shell is provided with a right groove, and the left groove and the right groove form a cavity for the rotating assembly to move after the left shell and the right shell are buckled; the left shell and the shaft sleeve are integrally formed by adopting aluminum alloy or titanium alloy; the right shell is integrally formed by adopting aluminum alloy or titanium alloy.

3. The comfortable high-strength impact-resistant speed differential device according to claim 1, wherein the rotating assembly comprises a turntable, a main coil spring, an auxiliary coil spring and a reversing gear part, the turntable, the main coil spring, the auxiliary coil spring and the reversing gear part are arranged and installed inside a shell of the speed differential device, the turntable is rotatably installed inside the shell of the speed differential device, a shaft sleeve is arranged in the shell, the turntable is rotatably installed on the shaft sleeve, a cavity for accommodating the main coil spring is arranged inside the turntable, the outer end of the main coil spring is fixedly connected with the inner side wall of the cavity of the turntable, the inner end of the main coil spring is fixedly connected with the shaft sleeve, one side of the turntable is provided with a reversing gear part which changes to the opposite direction of the rotation of the turntable, the auxiliary coil spring is sleeved outside the reversing gear part, the outer end of the auxiliary coil spring is fixedly connected with the inner side of the shell, and the inner end of the auxiliary coil spring is fixedly connected with the reversing gear part; the middle of the outer side of the turntable is surrounded by a rope/belt; the other end of the shaft sleeve is movably inserted into the middle of the turntable, the middle of the left shell and the middle of the right shell are penetrated and riveted through a lock pin, one end of the lock pin penetrates into the middle of the turntable after penetrating through the middle of the right shell, penetrates into the interior of the shaft sleeve, and finally penetrates out from the end part of the left shell to rivet; one side of the shaft sleeve is provided with a clamping slot for clamping the inner side end of the main coil spring of the rotating assembly.

4. The comfortable high-strength impact-resistant speed differential device according to claim 3, wherein the reversing gear part comprises a main gear, reversing gears and an annular internal gear, the main gear is arranged in the middle of one side of the turntable, three reversing gears are uniformly meshed with the outer side of the main gear, the three reversing gears are rotatably arranged on the inner side of the right shell, the outer sides of the three reversing gears are meshed with the inner side of the annular internal gear, and the inner ends of the auxiliary coil springs are fixedly connected on the outer side of the annular internal gear.

5. The comfortable high-strength impact-resistant speed differential device according to claim 3, wherein the rotary disc comprises a left rotary disc, a right rotary disc, an annular sleeve and an annular bulge, the annular bulge is arranged on the inner side of the left rotary disc, the annular sleeve is arranged on the inner side of the right rotary disc, the left rotary disc is clamped into the annular sleeve of the right rotary disc through the annular bulge, one end of the shaft sleeve extends into the middle of the inner part of the annular sleeve, a right main coil spring is arranged in the annular sleeve, and the outer end of the main coil spring is fixedly connected to the upper surface of the annular sleeve.

6. The comfortable high-strength impact-resistant speed differential device according to claim 1, wherein the hoisting assembly comprises a hanging rod, a disc, a gland and first steel balls, the lower end of the hanging rod is connected with the middle position of the disc, the gland is sleeved outside the hanging rod, the gland is positioned above the disc, a lower annular channel is arranged at a position on the disc, an upper annular channel is arranged on the disc, a plurality of first steel balls are arranged between the gland and the disc, the lower ends of the first steel balls are arranged in the lower annular channel in a rolling manner, and the upper ends of the first steel balls are arranged in the upper annular channel; the upper end designs in the casing of speed differential ware has the circular slot that holds gland, first steel ball and disc, and open the upper end in the middle of the circular slot has the through-hole, and gland, first steel ball and disc are located the circular slot from last down in proper order, and the jib upper end stretches out a section length from the through-hole in the middle of the casing upper end circular slot of speed differential ware.

7. The comfortable high-strength impact-resistant speed differential device according to claim 6, wherein a transverse through hole for hoisting connection is arranged on the length; an annular side cover is arranged below one circle of the outer side of the gland, and the annular side cover is shielded outside the first steel balls; the middle of the suspender is further provided with an anti-drop ring at the upper position, and the anti-drop ring is blocked at the outer side of the upper end of the housing of the speed differential device.

8. The comfortable high-strength impact-resistant speed differential device according to claim 6, wherein a ring sleeve is further arranged on the circular groove on the shell of the speed differential device, the ring sleeve is sleeved outside the hanging rod, the lower end of the ring sleeve is fixed outside a through hole on the circular groove, an annular groove is designed in the middle of the inner side of the ring sleeve, a plurality of second steel balls or a nylon ring is arranged in the annular groove, the outer sides of the second steel balls are located in the annular groove in a rolling mode, and the inner sides of the second steel balls are located on the outer peripheral surface of the hanging rod in a rolling mode.

9. The comfortable high-strength impact-resistant speed differential device according to claim 1, wherein the speed differential device further comprises a fitting type automatic return handle, the fitting type automatic return handle comprises a main body, a torsion spring and a lock pin, two ears are respectively arranged on two sides of the inner side of the upper end of the main body, a mounting hole is arranged in each ear, the main body is clamped at the upper end of one side of a shell of the speed differential device through two ears, the main body passes through the mounting hole of one side of the shell through the lock pin, passes through a reserved hole on the upper surface of the shell, and finally passes out of the mounting hole of the other side of the shell for locking; the torsion spring is also sleeved on the lock pin, one end of the torsion spring is connected to the upper surface of the ear, and the other end of the torsion spring is connected to the upper surface of the shell; the main body is an arc-shaped plate which is attached to the outer side edge of the shell; a groove is respectively designed in the middle of two sides of the main body, and a plurality of hollowed-out holes are arranged in the middle of the two grooves; the inner side of the main body is provided with wavy bulges.

10. The comfortable high-strength impact-resistant speed differential device according to claim 1, wherein a disc-shaped bulge is designed on the periphery of the outer side of the turntable, a plurality of grooves with openings on the peripheral surface are uniformly designed on the positions, close to the edges, of the disc-shaped bulge, a swinging block in a groove-like shape is rotatably mounted in the groove, one end of the swinging block is rotatably mounted in the groove, and a spring is mounted between the position, close to the outer side, of the same end of the swinging block and the inner wall of the groove; an inward protruding stop block is arranged in the shell corresponding to the installation side of the swinging block.