A step chain for rotating escalator

Abstract

The present invention relates to the field of chain technology, and in particular to a step chain for a rotating escalator. The technical solution adopted by the present invention is: comprising an outer ring step chain and an inner ring step chain, the inner ring arc length of the inner ring step chain is less than the outer ring arc length of the outer ring step chain, the outer ring step chain, the shaft chain links of the inner ring step chain cooperate with the step pedal, the outer ring step chain is composed of an outer ring inner chain link, an outer ring transition chain link, an outer ring shaft chain link, an outer ring outer chain link and an outer ring connecting chain link, and the inner ring step chain is composed of an inner ring inner chain link, an inner ring transition chain link, an inner ring shaft chain link, an inner ring outer chain link and an inner ring connecting chain link. The advantages of the present invention are: the whole is composed of inner and outer ring step chains, and the use requirements of the rotating escalator can be met when in use, the safety when in use is also relatively reliable, the durability is stronger, and a more fitting installation can be performed on a cylindrical building.

Description

Technical Field

[0001] The invention relates to the technical field of chains, and in particular to a step chain for a rotary escalator. Background Art

[0002] Most escalators use straight walking stairs, but when there are architectural restrictions or aesthetics, spiral stairs are needed. Existing escalators are all straight stairs, which cannot meet the use requirements of spiral escalators, and straight stairs cannot achieve the lifting effect of rotation. Summary of the invention

[0003] The purpose of the present invention is to provide a step chain for a rotary escalator. The step chain adopts a brand-new structural design and is composed of inner and outer circle step chains as a whole. The step chain can meet the use requirements of a rotary escalator when in use. The step chain is also more reliable and more durable during use. The step chain can be installed more closely on cylindrical buildings, thus solving the application gap of escalators in rotary lifting environments.

[0004] The technical solution of the present invention is as follows:

[0005] A step chain for a rotating escalator, characterized in that it comprises an outer ring step chain and an inner ring step chain, the inner ring arc length of the inner ring step chain is smaller than the outer ring arc length of the outer ring step chain, the shaft chain links of the outer ring step chain and the inner ring step chain cooperate with the step pedals, the outer ring step chain consists of an outer ring inner chain link, an outer ring transition chain link, an outer ring shaft chain link, an outer ring outer chain link and an outer ring connecting chain link, the inner ring step chain consists of an inner ring inner chain link, an inner ring transition chain link, an inner ring shaft chain link, an inner ring outer chain link and an inner ring connecting chain link, the outer ring inner chain link consists of two first inner chain plates, a first sleeve, two rollers, a universal ball seat, a universal The universal ball seat and the universal ball cover are installed together with the universal ball by matching the spherical surface. The universal ball cover is pressed into the spherical space of the universal ball seat. Countersunk holes are provided on both sides of the universal ball seat. The diameter of the countersunk holes is larger than the diameter of the outer structure of the universal ball spacer. The hinge pair formed by the universal ball spacer and the universal ball can rotate at a certain angle. The outer ring transition chain link is composed of the roller, the pin shaft and the first transition chain plate. The outer ring shaft chain link is composed of a first D-shaped pin shaft, three first retaining rings, two main wheel fixing pins, two first S-shaped outer chain plates and a pin shaft, and two fourth retaining rings. Two step main wheels, two second retaining rings, a bent attachment plate, a fixed bearing pin, and a bearing; the outer ring outer chain link is composed of a first outer chain plate and a pin shaft; the outer ring connecting chain link is composed of a first outer chain plate, a first connecting chain plate third retaining ring, and a retaining ring pin shaft; the inner ring inner chain link is composed of a first sleeve, a roller, a universal ball seat, a universal ball pressure cover, a universal ball, a universal ball spacer, and a second inner chain plate; the outer ring transition chain link is composed of a second sleeve and a second transition chain plate; the inner ring shaft chain link is composed of a second D-type pin shaft, a second S-type outer chain plate, a pin shaft, a fourth retaining ring, a step main wheel, and a second retaining ring; the inner ring outer chain link is composed of a second outer chain plate and a matching pin shaft The inner ring connecting link is composed of a third retaining ring, a retaining ring pin, a second outer link plate and a second connecting link plate; the universal ball spacer and the inner hole of the universal ball form a hinge pair inner hole matched with the first sleeve, and the diameter of the hinge pair inner hole is larger than the outer diameter of the pin and the retaining ring pin. The first sleeve, the universal ball spacer and the fourth sleeve end faces extend out of the first inner link plate, the fourth inner link plate and the first transition link plate and the second transition link plate. A bent attachment plate is installed on the first D-type pin, and two main wheel fixing pins are installed on the bent attachment plate. A fixed bearing pin is installed on the bent surface of the bent attachment plate, and a bearing is installed on the fixed bearing pin in transition fit.

[0006] Furthermore, outer surfaces of the bent plate, the first transition chain plate, the second transition chain plate, the second outer link plate, the second connecting chain plate, the second inner link plate, the first outer link plate and the first connecting chain plate are all provided with a galvanized protective layer.

[0007] Furthermore, the bent plate, the first transition link plate, the second transition link plate, the second outer link plate, the second connecting link plate, the second inner link plate, the first outer link plate and the first connecting link plate are all made of the same material.

[0008] Beneficial effects of the present invention:

[0009] The present invention adopts a brand-new structural design, which is composed of inner and outer circle step chains as a whole. It can realize the use requirements of rotating escalators when in use. It is also safer and more durable when in use. It can be installed more closely on cylindrical buildings, solving the application gap of escalators in rotating lifting environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0011] Figure 2 It is a front schematic diagram of the outer ring step chain of the present invention;

[0012] Figure 3 It is a cross-sectional schematic diagram of the outer ring step chain of the present invention;

[0013] Figure 4 It is a front schematic diagram of the inner ring step chain of the present invention;

[0014] Figure 5 It is a cross-sectional schematic diagram of the inner ring step chain of the present invention;

[0015] Figure 6 It is a schematic cross-sectional view of the inner chain link of the outer ring of the present invention;

[0016] Figure 7 It is a schematic cross-sectional view of the outer ring transition link of the present invention;

[0017] Figure 8 It is a schematic cross-sectional view of the outer ring shaft chain link of the present invention;

[0018] Fig. 9 It is a cross-sectional schematic diagram of the position of the outer ring shaft chain link BB of the present invention;

[0019] Fig.10 It is a schematic cross-sectional view of an outer link of an outer ring of the present invention;

[0020] Fig.11 It is a schematic cross-sectional view of the outer ring connecting link of the present invention;

[0021] Fig.12 It is a schematic cross-sectional view of the inner link of the inner ring of the present invention;

[0022] Fig.13 It is a schematic cross-sectional view of the inner ring transition link of the present invention;

[0023] Fig.14 It is a schematic cross-sectional view of the inner ring shaft chain link of the present invention;

[0024] Fig.15 It is a schematic cross-sectional view of the inner ring outer link of the present invention;

[0025] Fig.16 It is a schematic cross-sectional view of the inner ring connecting link of the present invention;

[0026] In the figure: 1, first inner link plate, 2, first sleeve, 3, roller, 4, universal ball seat, 5, universal ball pressure cover, 6, universal ball, 7, universal ball spacer, 8, first D-type pin, 9, first retaining ring, 10, main wheel fixing pin, 11, first S-shaped outer link plate, 12, first outer link plate, 13, pin, 14, first transition link plate, 15, fourth retaining ring, 16, fourth sleeve, 17, first connecting link plate, 18, third retaining ring, 19, retaining ring pin, 20, step main wheel, 21, second retaining ring, 22, bent plate, 23, fixed bearing pin, 24, second inner link plate, 25, second S-shaped outer link plate, 26, second outer link plate, 27, second transition link plate, 28, second connecting link plate, 29, second D-type pin, 634, bearing. DETAILED DESCRIPTION

[0027] like Figures 1 to 16As shown, a step chain for a rotating escalator adopts a brand-new structural design, and is composed of an inner and outer ring step chain as a whole. When in use, it can meet the use requirements of a rotating escalator, and is relatively safe and reliable when in use, and has stronger durability. It can be installed more closely on cylindrical buildings, and solves the application gap of escalators in rotating lifting environments. It includes an outer ring step chain and an inner ring step chain, and the inner ring arc length of the inner ring step chain is smaller than the outer ring arc length of the outer ring step chain. The outer ring step chain and the shaft chain links of the inner ring step chain cooperate with the step pedals. The outer ring step chain is composed of an outer ring inner chain link, an outer ring transition chain link, an outer ring shaft chain link, an outer ring outer chain link and an outer ring connecting chain link. The inner ring step chain is composed of an inner ring inner chain link, an inner ring transition chain link, an inner ring shaft chain link, an inner ring outer chain link and an inner ring connecting chain link. The outer ring inner chain link is composed of two first inner link plates 1, a first sleeve 2, and two rollers. 3, a universal ball seat 4, a universal ball pressure cover 5, a universal ball 6, and two universal ball spacers 7. The universal ball seat 4 and the universal ball pressure cover 5 are installed together by matching the spherical surface with the universal ball 6. The universal ball pressure cover 5 is pressed into the spherical space of the universal ball seat 4. Countersunk holes are provided on both sides of the universal ball seat 4. The diameter of the countersunk holes is larger than the diameter of the outer structure of the universal ball spacer 7. The hinge pair formed by the universal ball spacer 7 and the universal ball 6 can rotate at a certain angle. The outer ring transition chain link is composed of the roller 3, the pin 13 and the first transition The outer ring shaft chain link is composed of a first D-shaped pin 8, three first retaining rings 9, two main wheel fixing pins 10, two first S-shaped outer chain plates 11 and a pin 13, two fourth retaining rings 15, two step main wheels 20, two second retaining rings 21, a bent plate 22, a fixed bearing pin 23, and a bearing 634. The outer ring outer chain link is composed of a first outer chain plate 12 and a pin 13. The outer ring connecting chain link is composed of a first outer chain plate 12, a first connecting chain plate 17, a third retaining ring 18 and a retaining ring pin 19. The inner ring inner chain link is composed of a first set of The outer ring transition chain link is composed of the second sleeve 16 and the second transition chain plate 27, the inner ring shaft chain link is composed of the second D-type pin shaft 29, the second S-type outer chain plate 25, the pin shaft 13, the fourth retaining ring 15, the step main wheel 20, and the second retaining ring 21, the inner ring outer chain link is composed of the second outer chain plate 26 and the matching pin shaft 13, and the inner ring connecting chain link is composed of the third retaining ring 18, the retaining ring pin shaft 19, the second outer chain plate 26 and the second connecting chain plate 28;The universal ball spacer 7 and the inner hole of the universal ball 6 form a hinge pair inner hole that matches the first sleeve 2. The diameter of the hinge pair inner hole is larger than the outer diameter of the pin shaft 13 and the retaining ring pin shaft 19, ensuring that the outer ring transition chain link, inner ring transition chain link, outer ring shaft chain link, inner ring shaft chain link, outer ring outer chain link, inner ring outer chain link and outer ring connecting chain link and inner ring connecting chain link equipped with the retaining ring pin shaft 19 can rotate flexibly along the axial direction of the hinge pair inner hole. The first sleeve 2, the universal ball spacer 7 and the end faces of the fourth sleeve 16 extend out of the first inner chain plate 1 and the fourth inner chain plate 24 and the first transition chain plate 14 and the second transition chain plate 27, so that the first inner There is a certain distance between the outer sides of the chain plate 1, the second inner chain plate 24, the large hole surface of the first transition chain plate 14 and the inner hole surface of the second transition chain plate 27 and the inner sides of the small hole surfaces of the first outer chain plate 12, the first S-shaped outer chain plate 11, the first connecting chain plate 17, the small hole surface of the first transition chain plate 14, the second outer chain plate 26, the second S-shaped outer chain plate 25, the second connecting chain plate 28 and the second transition chain plate 27 of the hinge pair chain links to ensure that the hinge pair of the outer ring inner chain link and the inner ring inner chain link with universal ball can rotate longitudinally by a certain angle with the outer ring transition chain link, the outer ring shaft chain link, the inner ring transition chain link and the inner ring shaft chain link. The size of the above distance is limited by the rotation angle of the rotating escalator. The larger the rotation angle, the larger the corresponding distance. A first D-shaped pin shaft 8, two first S-shaped outer link plates 11, and a pin shaft 13 form an outer ring shaft link frame. The first D-shaped pin shaft 8 cooperates with the inner hole of the second sleeve 16 of the second outer ring transition link to form a hinge pair. The outer ring transition link rotates flexibly along the axial direction of the first D-shaped pin shaft 8. The pin shaft 13 cooperates with the inner holes of the universal ball 6 and the universal ball spacer 7 of the outer ring inner link to form a hinge pair. The outer ring inner link rotates flexibly along the axial direction of the pin shaft 13 and can rotate longitudinally by a certain angle. The first D-shaped pin shaft 8 is equipped with a bent plate 22, and the bent plate 22 is equipped with two main wheels. A fixing pin 10, each main wheel fixing pin 10 is provided with a step main wheel 20 in transition fit, the main wheel fixing pin 10 is designed with a step so that the step main wheel 20 is at a certain distance from the bent attachment plate 22, ensuring that the bent attachment plate 22 does not interfere with the free rolling of the step main wheel 20, and a first retaining ring 9 and a second retaining ring 21 are provided on both sides of the main wheel fixing pin 10 to prevent the main wheel fixing pin 10 and the step main wheel 20 from falling off, and the bent attachment plate 22 is radially parallel to the first S-shaped outer chain plate 11, ensuring that the truss and sprocket of the rotating escalator are respectively engaged with the step main wheel 20 of the step chain and the hinge auxiliary roller 3;A fixed bearing pin 23 is installed on the bent surface of the bent attachment plate 22, and a bearing is installed on the fixed bearing pin 23 in a transition fit. The bearing side of the fixed bearing pin 23 is fixed with a fourth retaining ring 15 to prevent the bearing from falling off. The outer ring of the bearing cooperates with the truss retaining gauge of the rotating escalator to offset the centripetal force during the operation of the rotating escalator and ensure the normal operation of the rotating escalator. The second D-type pin 29, two second S-type outer link plates 25, and a pin 13 form an inner ring shaft chain link frame. The second D-type pin 29 cooperates with the inner hole of the second sleeve 16 of the inner ring transition chain link to form a hinge pair. The inner ring transition chain link rotates flexibly along the axial direction of the D-type second pin 29. The pin 13 cooperates with the inner hole of the inner ring inner chain link universal ball 6 and the universal ball spacer 7 to form a hinge pair. The inner ring inner chain link rotates flexibly along the axial direction of the pin 13 and can rotate longitudinally by a certain angle. The second D-type pin 29 is designed with a step to ensure that there is a certain distance between the step main wheel 20 and the second S-type outer link plate 25, ensuring that the second S-type outer link plate 25 will not interfere with the free rolling of the step main wheel 20. The second D-type pin 29 is fixed with a second retaining ring 21 on the bearing side to prevent the bearing from falling off.

[0028] Preferably, the outer surfaces of the bent plate 22, the first transition chain plate 14, the second transition chain plate 27, the second outer link plate 26, the second connecting chain plate 28, the second inner link plate 24, the first outer link plate 12 and the first connecting chain plate 17 are all provided with a galvanized protective layer to improve the overall structural strength and extend the service life during use.

[0029] Preferably, the bent plate 22, the first transition chain plate 14, the second transition chain plate 27, the second outer link plate 26, the second connecting chain plate 28, the second inner link plate 24, the first outer link plate 12 and the first connecting chain plate 17 are made of the same material, which has lower production costs and is more convenient during production and processing.

[0030] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements or substitutions can be made without departing from the principles of the present invention. These improvements or substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A step chain for a rotary escalator, characterized in that: The invention comprises an outer ring step chain and an inner ring step chain, wherein the inner ring arc length of the inner ring step chain is smaller than the outer ring arc length of the outer ring step chain, the outer ring step chain and the shaft chain links of the inner ring step chain cooperate with the step pedal, the outer ring step chain consists of an outer ring inner chain link, an outer ring transition chain link, an outer ring shaft chain link, an outer ring outer chain link and an outer ring connecting chain link, the inner ring step chain consists of an inner ring inner chain link, an inner ring transition chain link, an inner ring shaft chain link, an inner ring outer chain link and an inner ring connecting chain link, the outer ring inner chain link consists of two first inner chain plates (1), a first sleeve (2), two rollers (3), a universal ball seat (4), a universal ball pressure cover (5), The invention relates to a universal ball (6) and two universal ball spacers (7). The universal ball seat (4) and the universal ball pressure cover (5) are installed together with the universal ball (6) through a matching spherical surface. The universal ball pressure cover (5) is pressed into the spherical space of the universal ball seat (4). Countersunk holes are provided on both sides of the universal ball seat (4). The diameter of the countersunk holes is larger than the diameter of the outer structure of the universal ball spacer (7). The hinge pair formed by the universal ball spacer (7) and the universal ball (6) can rotate at a certain angle. The outer ring transition chain link is composed of the roller (3), the pin shaft (13) and the first transition chain plate (14). The outer ring shaft chain link is composed of a first The invention comprises a D-shaped pin shaft (8), three first retaining rings (9), two main wheel fixing pins (10), two first S-shaped outer chain plates (11) and a pin shaft (13), two fourth retaining rings (15), two step main wheels (20), two second retaining rings (21), a bent plate (22), a fixed bearing pin (23), and a bearing (634); the outer chain link of the outer ring comprises a first outer chain plate (12) and a pin shaft (13); the outer connecting chain link comprises a first outer chain plate (12), a first connecting chain plate (17), a third retaining ring (18), and a retaining ring pin shaft (19); the inner chain link of the inner ring comprises a first sleeve (2), a roller (3), a universal ball The outer ring transition chain link is composed of a second sleeve (16) and a second transition chain plate (27); the inner ring shaft chain link is composed of a second D-type pin shaft (29), a second S-type outer chain plate (25), a pin shaft (13), a fourth retaining ring (15), a step main wheel (20), and a second retaining ring (21); the inner ring outer chain link is composed of a second outer chain plate (26) and a matching pin shaft (13); and the inner ring connecting chain link is composed of a third retaining ring (18), a retaining ring pin shaft (19), a second outer chain plate (26), and a second connecting chain plate (28);The inner holes of the universal ball spacer (7) and the universal ball (6) form a hinge pair inner hole matched with the first sleeve (2), the diameter of the hinge pair inner hole is larger than the outer diameter of the pin shaft (13) and the retaining ring pin shaft (19), the first sleeve (2) and the end faces of the universal ball spacer (7) and the fourth sleeve (16) extend out of the first inner link plate (1) and the fourth inner link plate (24) and the first transition link plate (14) and the second transition link plate (27), the first D-shaped pin shaft (8) is equipped with a bent attachment plate (22), the bent attachment plate (22) is equipped with two main wheel fixing pins (10), the bent surface of the bent attachment plate (22) is equipped with a fixed bearing pin (23), and the fixed bearing pin (23) is equipped with a bearing in transition fit. ; 2. The step chain for a rotary escalator according to claim 1, characterized in that: The outer surfaces of the bent plate (22), the first transition link plate (14), the second transition link plate (27), the second outer link plate (26), the second connecting link plate (28), the second inner link plate (24), the first outer link plate (12) and the first connecting link plate (17) are all provided with a galvanized protective layer.

3. The step chain for a rotary escalator according to claim 1, characterized in that: The bent plate (22), the first transition link plate (14), the second transition link plate (27), the second outer link plate (26), the second connecting link plate (28), the second inner link plate (24), the first outer link plate (12) and the first connecting link plate (17) are all made of the same material.

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