Steel cable synchronous arrangement and rope wheel self-adaptive swing device

Abstract

The application relates to a steel cable synchronous arrangement and rope wheel self-adaptive swing device which is matched with each steel cable reel installation and comprises a driving unit matched with the reel installation and composed of a left supporting seat, a right supporting seat, a driving sprocket, a driven sprocket, a chain and a tension sprocket, a synchronous displacement unit composed of a screw rod, a positioning rod and a nut, a reciprocating swing unit composed of a mounting seat, a rotating shaft and a bottom plate, a chain break detection switch and additionally arranged left side over-limit detection switches and right side over-limit detection switches; wherein the driving unit drives the synchronous displacement unit to operate; the nut of the synchronous displacement unit implements horizontal positioning and synchronous horizontal displacement on the steel cable, so that the steel cable is prevented from being out of the groove or jumping out of the groove; the reciprocating swing unit enables the front rope wheel and the rear rope wheel to make follow-up adaptive swing, so that the steel cable is prevented from generating lateral friction with the front rope wheel or the rear rope wheel; the chain break detection switch is used for the operation safety of the device; and the left side over-limit detection switches and the right side over-limit detection switches are used as redundant safety devices of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of parking equipment, in particular to a steel cable synchronous arrangement and rope wheel self-adaptive swing device of a mechanical parking equipment. BACKGROUND

[0002] The most common way of mechanical parking equipment, especially the lifting and transverse moving parking equipment, is to lift the vehicle plate by traction. Among them, the form of winding steel cable around the winding drum is relatively high. From the specific structure of winding steel cable around the winding drum, most of them adopt single-layer winding form. The advantage of this form is that it can avoid the entanglement phenomenon that often occurs when winding steel cable in multiple layers, and the stress of steel cable is better. However, the horizontal size of the winding drum is larger, the swing angle of the steel cable is larger, and the steel cable is often easy to appear off-slot and jump-slot when the swing angle is the largest. When the vehicle plate is lowered to the ground and the winding drum fails to stop rotating in time, it will also cause the steel cable to off-slot or jump-slot, thereby affecting the stability of the vehicle plate lifting operation, and even causing accidents. Therefore, solving the above problems is still a practical problem that the technical personnel in the industry need to research and solve. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a steel cable synchronous arrangement and rope wheel self-adaptive swing device for the form of steel cable winding and traction of the vehicle plate lifting equipment, which solves the related problems in a simple and low-cost way.

[0004] The steel cable synchronous arrangement and rope wheel self-adaptive swing device of the present application is characterized in that: the device is installed with each winding drum, including a driving unit, a synchronous displacement unit, a reciprocating swing unit and a detection unit.

[0005] When the parking equipment uses steel cable traction, a spiral groove is usually processed on the outer surface of the winding drum, one end of the steel cable is fastened to the outer surface of the winding drum, and then wound in the order of the spiral groove, and only wound on the outer surface without overlapping winding.

[0006] The description is made with the reel horizontally transversely arranged: one is arranged on the left side of the vehicle carrying plate and the other is arranged on the right side of the vehicle carrying plate, and they are respectively fastened and installed on the left side and the right side of the horizontally arranged reel shaft, arranged on the equipment rack through bearing seat, driven to rotate by motor reducer, and the outer surface is processed with spiral groove with spacing greater than the diameter of the steel cable and depth less than the radius of the steel cable; two steel cables are respectively arranged on the left side and the right side of the vehicle carrying plate; one end of one of the steel cables is fastened and connected to the front end position of the side beam on one side of the vehicle carrying plate, then upwardly wound through the front rope wheel installed on the front end of the longitudinal beam above the equipment rack, then directed to the direction of the reel, sequentially wound around the spiral groove on the surface of the reel for several turns, and finally fastened on the reel; one end of the other steel cable is fastened and connected to the rear end position of the side beam on one side of the vehicle carrying plate, then upwardly wound through the rear rope wheel installed on the rear end of the longitudinal beam above the equipment, then directed to the direction of the reel, sequentially wound around the spiral groove on the surface of the reel for several turns, and finally fastened and installed on the reel.

[0007] The driving unit comprises a left bearing seat, a right bearing seat, a driving sprocket, a driven sprocket, a chain and a tension sprocket; each reel is equipped with a set.

[0008] The left bearing seat is arranged on the left side of the reel, one end of which is fastened and installed on the equipment rack, and the other end of which is outwardly directed to the direction of the rope wheel for lifting the vehicle carrying plate, beyond the maximum diameter of the reel, and is processed with an axial hole with a center axis parallel to the center axis of the reel; the right bearing seat is arranged on the right side of the reel, one end of which is fastened and installed on the equipment rack, and the other end of which is outwardly directed to the direction of the rope wheel for lifting the vehicle carrying plate, beyond the maximum diameter of the reel, and is processed with an axial hole with a center axis parallel to the center axis of the reel; the center line of the axial hole of the left bearing seat is in the same straight line with the center line of the axial hole of the right bearing seat.

[0009] The driving sprocket is coaxial with the reel and fastened and installed on the left side or the right side of the reel, and rotates synchronously with the reel; the driven sprocket is arranged at the outward extending position of the steel cable wound on the reel, corresponding to the installation position of the driving sprocket; the chain is in ring structure, and is wound through the driving sprocket and the driven sprocket; the tension sprocket is arranged on the winding path of the chain and can freely rotate; the function of the tension sprocket is to keep the chain in tension state and not to be disengaged from the meshing state of the driving sprocket and the driven sprocket.

[0010] The synchronous displacement unit comprises a screw rod, a positioning rod and a screw nut. The middle position of the screw rod is provided with external threads, and both ends are arranged on the shaft holes of the left and right supporting seats and can rotate freely. The driven sprocket is tightly installed on the screw rod. The positioning rod is tightly arranged on the middle positions of the left and right supporting seats and has a circular or rectangular cross section. The screw nut is provided with internal threads matched with the external threads of the screw rod and is arranged on the middle position of the screw rod. The outer side is provided with a through hole matched with the cross section shape of the positioning rod, so that the screw nut is radially limited by the positioning rod and cannot rotate. When the screw rod rotates, the screw nut moves transversely along the surface of the screw rod. The screw nut is provided with a gap or a circular hole for accommodating the steel cable at the position corresponding to the passing position of the steel cable, so as to limit the transverse position of the passing steel cable. When the steel cable is wound around the front or rear rope wheel of the equipment rack beam and then points to the winding drum, it will first pass through the gap or circular hole of the screw nut, then sequentially wind around the spiral groove on the surface of the winding drum, and finally be tightly installed on the winding drum.

[0011] The rotation direction of the threads of the screw rod is the same as that of the spiral groove of the winding drum, and the pitch is related to the arrangement distance of the spiral groove of the winding drum. When the winding drum is driven to rotate by the motor reducer, it drives the two steel cables installed on the outer surface of the winding drum to be wound synchronously or broadcasted outward synchronously. The length of the steel cable wound radially or broadcasted outward is the same as the circumference of the nominal diameter of the winding drum. The action of the steel cable wound radially or broadcasted outward completes one circle, that is, it simultaneously completes a transverse displacement of one spiral groove pitch on the outer surface of the winding drum. The matching of the pitch of the screw rod and the tooth number ratio of the driving sprocket and the driven sprocket is to make the screw rod rotate when the winding drum rotates, and to make the transverse displacement distance of the screw nut on the outer surface of the screw rod consistent with the transverse displacement of the steel cable on the outer surface of the winding drum. The above only relates to the common sense of mechanical transmission. For example, if the spiral groove of the winding drum is a single head spiral with a pitch of 10 mm, the transverse displacement of the steel cable is 10 mm when the winding drum rotates one circle. If the tooth number ratio of the driving sprocket and the driven sprocket is 2:1, the winding drum rotates one circle and the screw rod rotates two circles. At this time, if the screw rod is a single head spiral with a pitch of 5 mm, the transverse displacement of the screw nut is also 10 mm when the winding drum rotates one circle and the screw rod rotates two circles, which meets the above requirements. The technical scheme of the present application can effectively limit the transverse position of the steel cable, and the transverse displacement of the screw nut is completely synchronized with the transverse displacement of the steel cable wound on the winding drum, effectively avoiding the phenomenon of the steel cable possibly out of groove or jumping groove on the surface of the winding drum, ensuring the stability of the lifting operation of the car plate and avoiding accidents caused thereby.

[0012] The two reciprocating swing units are arranged below the front rope wheel and the rear rope wheel respectively, and one of the following two structures is adopted:

[0013] Structure one, the reciprocating swing unit comprises a mounting seat, a rotating shaft and a bottom plate.

[0014] The mounting seat is fastened and installed on the longitudinal beam of the equipment rack, and a circular hole is vertically processed; the rotating shaft is arranged above the circular hole and can freely rotate; the bottom plate is fastened and connected with the rotating shaft and can reciprocatingly swing horizontally relative to the mounting seat; the front rope wheel and the rear rope wheel are fastened and installed on the corresponding bottom plate through the corresponding rope wheel base; after installation, the central line of the groove of the front rope wheel and the rear rope wheel vertically downwardly projected intersects with the rotation center of the rotating shaft, the front rope wheel and the rear rope wheel can freely rotate in the horizontal direction around the rotation center line of the rotating shaft, and can reciprocatingly swing horizontally under the action of the lateral force of the steel cable.

[0015] Structure two, the reciprocating swing unit comprises a slewing bearing and a bottom plate.

[0016] The fixed ring of the slewing bearing is fastened and installed on the longitudinal beam of the equipment rack; the bottom plate is fastened and connected with the rotating ring of the slewing bearing and can reciprocatingly swing horizontally relative to the fixed ring; the front rope wheel and the rear rope wheel are fastened and installed on the corresponding bottom plate through the corresponding rope wheel base; after installation, the central line of the groove of the front rope wheel and the rear rope wheel vertically downwardly projected intersects with the rotation center of the rotating ring, the front rope wheel and the rear rope wheel can freely rotate in the horizontal direction around the rotation center line of the rotating ring, and can reciprocatingly swing horizontally under the action of the lateral force of the steel cable. The slewing bearing is a mechanism part with a large amount of use in recent years, and is widely used in the AGV slewing mechanism. The typical and simplest slewing bearing is composed of three parts, i.e. the fixed ring, the rotating ring (the fixed ring and the rotating ring are only relative, and can be interchanged according to the assembly result and the operation requirement) and the ball (or the roller), which can bear a large axial load; the fixed ring and the rotating ring are respectively processed with screw holes or through holes for fixing purposes.

[0017] The front rope wheel and the rear rope wheel of the prior art are fastened and installed on the longitudinal beam through the rope wheel base, and can only freely rotate around the rotating axis.

[0018] As described above, the steel cable is directed to the direction of the winding drum from the overhead girder of the equipment rack and passes through the gap or the round hole of the nut, and then sequentially winds around the spiral groove processed on the surface of the winding drum; when the winding drum rotates, the nut and the spiral groove of the winding drum make synchronous transverse displacement, which means that the angle between the direction of the steel cable after passing through the front or rear sheave of the overhead girder of the equipment rack and the longitudinal center line of the equipment rack will continuously change slightly; the reciprocating swing unit of the technical solution of the present application is to make the front or rear sheave swing adaptively, so that the direction of the groove of the front or rear sheave is consistent with the required direction of the steel cable, avoiding the lateral friction between the steel cable and the groove of the front or rear sheave existing in the prior art, effectively improving the stress condition of the steel cable and prolonging the service life of the steel cable. In addition, the lateral friction of the steel cable existing in the prior art is also the main reason for the phenomenon of off-slot and jump-slot on the surface of the winding drum. Therefore, the reciprocating swing unit of the technical solution of the present application can effectively avoid this phenomenon.

[0019] The detection unit includes a chain breakage detection switch; the chain breakage detection switch is a position switch, which is arranged above the chain and detects the vertical displacement of the chain, and is connected with the equipment control system; when the chain is loose or broken, the chain breakage detection switch is triggered to send an over-limit signal to the equipment control system, so that the equipment control system is stopped urgently. If the chain is loose or broken, the device will not immediately cause a safety hazard to the operation of the equipment; but the continued operation of the equipment will cause the winding of the steel cable to be chaotic, so the equipment needs to be stopped urgently. Obviously, the chain breakage detection switch and the traction chain breakage detection device of the prior art can use the same type of position switch.

[0020] Further, the steel cable synchronous arrangement and sheave adaptive swing device of the present application is characterized in that: the detection unit includes a left over-limit detection switch and a right over-limit detection switch; the left over-limit detection switch is a position switch arranged on the left side and detects the left end surface of the nut, and is connected with the equipment control system; the right over-limit detection switch is a position switch arranged on the right side and detects the right end surface of the nut, and is connected with the equipment control system; when the nut is transversely displaced to the left beyond a predetermined position, the left over-limit detection switch is triggered to send an over-limit signal to the equipment control system, so that the equipment control system is stopped urgently; when the nut is transversely displaced to the right beyond a predetermined position, the right over-limit detection switch is triggered to send an over-limit signal to the equipment control system, so that the equipment control system is stopped urgently.

[0021] The nut is transversely displaced to the left beyond a predetermined position or transversely displaced to the right beyond a predetermined position, one of which represents the lifting of the car plate beyond the limit, and the other represents the lowering of the car plate beyond the limit, and the occurrence of these conditions requires the emergency stop of the equipment. The parking equipment is usually provided with an over-limit detection device for lifting, but it cannot be ruled out that the device will fail; the parking equipment does not have an over-limit detection device for lowering, and the traction chain breaking detection device is also used as an over-limit detection device for lowering (because the lowering of the car plate beyond the limit usually causes the chain to relax at the same time), and it cannot be ruled out that the device will fail. Therefore, the left over-limit detection switch and the right over-limit detection switch of the present application can at least serve as redundant safety detection devices for the equipment, and can further increase the safety of the equipment in operation.

[0022] Further, the steel cable synchronous arrangement and rope wheel self-adaptive swing device of the present application is characterized in that: the chain is a roller chain or a toothed chain; the driving sprocket, the driven sprocket, the tension sprocket and the chain are matched. Both the roller chain and the toothed chain can achieve long-distance precise transmission, so they can meet the requirements of the technical solution of the present application.

[0023] Further, the steel cable synchronous arrangement and rope wheel self-adaptive swing device of the present application is characterized in that: the spiral groove of the winding drum for winding the steel cable is a double-start spiral, and two steel cables are matched and arranged; the nut is one, which is provided with a notch or a circular hole for accommodating the two steel cables, and the transverse positions of the two steel cables are limited respectively. The purpose of using a double-start spiral for the winding drum is to enable the two steel cables to be wound side by side; due to the size, one nut is more suitable for practical application.

[0024] Further, the steel cable synchronous arrangement and rope wheel self-adaptive swing device of the present application is characterized in that: the spiral groove of the winding drum for winding the steel cable is a single-start spiral, and the two steel cables are wound at different positions on the outer surface of the winding drum; the nut is two, each of which is provided with a notch or a circular hole for accommodating the steel cable, and the transverse position of the steel cable is limited respectively. The winding range of the two steel cables does not overlap by using a single-start spiral for the winding drum, but the distance between the two steel cables is relatively large; due to the size, two nuts are more suitable for practical application.

[0025] Preferably, the steel cable synchronous arrangement and rope wheel self-adaptive swing device of the present application is characterized in that: the notch or the circular hole of the nut for accommodating the steel cable is provided with a roller having a rotation axis perpendicular to the center line of the steel cable near the winding drum; and the roller realizes rolling contact with the steel cable. The friction coefficient of rolling contact is much smaller than that of sliding contact, so the roller is a preferred option.

[0026] Further, the steel cable synchronous arrangement and rope wheel self-adaptive swing device is characterized in that the center line of the vertically processed circular hole of the reciprocating swing unit vertically intersects with the rotation center line of the front rope wheel and the rear rope wheel installed on the bottom plate.

[0027] Further, the steel cable synchronous arrangement and rope wheel self-adaptive swing device is characterized in that the center line of the vertically processed circular hole of the reciprocating swing unit vertically intersects with the rotation center line of the front rope wheel and the rear rope wheel installed on the bottom plate.

[0028] Preferably, the steel cable synchronous arrangement and rope wheel self-adaptive swing device is characterized in that the chain and the tension sprocket of the driving unit are cancelled, the driving sprocket is changed into a driving gear, and the driven sprocket is changed into a driven gear.

[0029] Preferably, the steel cable synchronous arrangement and rope wheel self-adaptive swing device is characterized in that the driving unit, the synchronous displacement unit and the detection unit are all cancelled, and only the reciprocating swing unit is reserved.

[0030] The technical scheme of the present application can at least achieve the following effects:

[0031] 1. The nut can effectively limit the transverse position of the steel cable, and the transverse displacement of the nut is completely synchronized with the transverse displacement of the steel cable around the winding drum, effectively avoiding the phenomenon of the steel cable possibly appearing off-groove or jumping groove on the surface of the winding drum, ensuring the stability of the operation of the car plate lifting, and avoiding accidents caused thereby.

[0032] 2. The front rope wheel or the rear rope wheel can make adaptive swing, so that the direction of the groove of the front rope wheel or the rear rope wheel is consistent with the required direction of the steel cable, effectively avoiding the phenomenon of the steel cable and the groove of the front rope wheel or the rear rope wheel generating lateral friction in the prior art, effectively improving the stress condition of the steel cable, and prolonging the service life of the steel cable.

[0033] 3. Adding left-side and right-side over-limit detection switches as redundant safety detection devices for the equipment can further increase the safety of equipment operation.

[0034] 4. Even using the simplest solution can achieve significant results. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the prior art and the embodiments of this application will be briefly introduced below. Obviously, the drawings in the following description of the embodiments are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 Attached Figure Figure 2 The attached diagram is a schematic diagram of the prior art (top view);

[0037] In the diagram: 01 Bearing housing; 02 Drum; 03 Rear crossbeam; 04 Drum shaft; 05 Rear steel cable; 06 Front steel cable; 07 Rear sheave; 08 Left longitudinal beam; 09 Front sheave.

[0038] Figure 3 Attached Figure Figure 4 The attached figure is a schematic diagram (top view) of one embodiment of this application;

[0039] In the diagram: 01 Bearing housing; 02 Drum; 03 Rear crossbeam; 04 Drum shaft; 05 Rear steel cable; 06 Front steel cable; 07 Rear sheave; 08 Left longitudinal beam; 09 Front sheave; 10 Drive sprocket; 11 Chain; 12 Right support seat; 13 Driven sprocket; 14 Left support seat; 20 Screw; 21 Positioning rod; 22a Nut 1; 22b Nut 2.

[0040] Figure 5 Attached Figure Figure 6 The attached figure is a schematic diagram (top view) of another embodiment of this application;

[0041] In the diagram: 01 Bearing housing; 02 Drum; 03 Rear crossbeam; 04 Drum shaft; 05 Rear steel cable; 06 Front steel cable; 07 Rear rope pulley; 08 Left longitudinal beam; 09 Front rope pulley; 10 Drive sprocket; 11 Chain; 12 Right support seat; 13 Driven sprocket; 14 Left support seat; 20 Screw; 21 Positioning rod; 22a Nut 1; 22b Nut 2; 30 Left over-limit detection unit; 31 Right over-limit detection unit. Detailed Implementation

[0042] First, let's introduce the existing technologies.

[0043] Figure 1 , Figure 2The diagram shown is a schematic diagram of the prior art (top view); the upper part of the diagram shows the rear end of the equipment, and the lower part mainly examines the left side of the diagram. A bearing seat 01 is provided on the left side of the rear crossbeam 03. The drum 02 is mounted on two bearing seats on the left and right sides via a drum shaft 04, and its outer surface is machined with spiral grooves for winding the steel cable. A rear sheave 07 is provided at the rear end of the left longitudinal beam 08 (i.e., the upper part of the diagram), and a front sheave 09 is provided at the front end (i.e., the lower part of the diagram). As can be seen from the preceding text, one end of the front steel cable 06 is fastened to the front end of the left side beam of the vehicle platform (not shown in the diagram), and then winds upwards through the area above the equipment frame. The front rope pulley 09 at the front end of the left longitudinal beam 08 then points towards the drum 02, sequentially wraps around the spiral groove machined on the surface of the drum 02 several times, and finally is fastened to the drum 02; one end of the rear steel cable 05 is fastened to the rear end of the left side beam of the vehicle platform, then winds upwards past the rear rope pulley 07 at the rear end of the left longitudinal beam 08 installed above the equipment frame, then points towards the drum 02, sequentially wraps around the spiral groove machined on the surface of the drum 02 several times, and finally is fastened to the drum 02.

[0044] As can be seen from the figure, Figure 2 The front steel cable 06 and the rear steel cable 05 shown have a large number of turns on the drum 02, and the corresponding position of the vehicle platform is the raised position. Figure 1 The front steel cable 06 and the rear steel cable 05 shown have fewer turns on the drum 02, and the corresponding position of the vehicle platform is the lowered position.

[0045] from Figure 1 , Figure 2 It can be seen that there is lateral friction between the front steel cable 06 and the front sheave 09, and lateral friction between the rear steel cable 05 and the rear sheave 07. The front steel cable 06 and the rear steel cable 05 are prone to derailment and jumping on the surface of the drum 02. This phenomenon mostly occurs when the steel cable is not under tension or when the steel cable is under a large tension.

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] Figure 3 , Figure 4 The diagram shown is a top view of one embodiment of this application; as can be seen in the figure, compared with the prior art... Figure 1 , Figure 2 In this embodiment, the steel cable synchronous arrangement and rope wheel adaptive swing device described in this application are added.

[0048] As can be seen from the foregoing, the device is installed in conjunction with each drum and includes a drive unit, a synchronous displacement unit, a reciprocating swing unit, and a detection unit.

[0049] Referring to the foregoing and comparing with the figures shown: the drive unit installed with the drum 02 includes: a left support seat 14, one end of which is fixedly mounted on the equipment frame and located on the left side of the drum 02; a right support seat 12, one end of which is fixedly mounted on the equipment frame and located on the right side of the drum 02; a drive sprocket 10, which is coaxial with the drum 02, fixedly mounted, and located on the left or right side of the drum 02 (right side in this embodiment), and rotates synchronously with the drum 02; a driven sprocket 13, which is located at the outward extension position of the steel cable wound on the drum 02 (shown at the bottom in the figure), corresponding to the installation position of the drive sprocket 10, and fixedly mounted on the screw 20; a ring-shaped chain 11 that winds around the drive sprocket 10 and the driven sprocket 13 respectively; for clarity, the tension sprocket is not shown in the figure.

[0050] As can be seen from the foregoing: the outer side of the other end of the left support seat 14 faces the direction of the rope wheel for lifting the traction vehicle plate, exceeds the maximum diameter of the drum 2, and has a shaft hole with its central axis parallel to the central axis of the drum 2; the outer side of the other end of the right support seat 12 faces the direction of the rope wheel for lifting the traction vehicle plate, exceeds the maximum diameter of the drum 2, and has a shaft hole with its central axis parallel to the central axis of the drum 2; the center line of the shaft hole of the left support seat 14 and the center line of the shaft hole of the right support seat 12 are the same straight line.

[0051] Referring to the foregoing and comparing with the figures shown: the synchronous displacement unit installed with the drum 02 includes: a screw 20 with an external thread machined in the middle position, and its two ends respectively set on the shaft holes of the left support 14 and the right support 12, which can rotate freely; a positioning rod 21 with a circular or rectangular cross section, which is fastened to the middle position of the left support 14 and the right support 12; and a nut (shown as nut 22a and nut 22b) with an internal thread machined to match the external thread of the screw 20 and set in the middle position of the screw 20.

[0052] As can be seen from the foregoing: Nut 1 22a and Nut 22b have through holes on their outer sides that match the cross-sectional shape of the positioning rod 21, so that Nut 1 22a and Nut 22b are radially limited by the positioning rod 21 and cannot rotate; when the screw 20 rotates, Nut 1 22a and Nut 22b make lateral displacement along the surface of the screw 20; Nut 1 22a and Nut 22b are provided or made with notches or round holes at the corresponding positions where the rear steel cable 05 and the front steel cable 06 pass through, which can limit the lateral position of the passing rear steel cable 05 and the front steel cable 06.

[0053] Referring to the foregoing and comparing with the figure: After the rear steel cable 05 passes around the rear sheave 07 of the longitudinal beam above the equipment frame, it points towards the drum 02, first passing through the notch or round hole of nut 22a, then sequentially winding around the spiral groove machined on the surface of the drum 02, and finally being fastened to the drum 02; before the front steel cable 06 passes around the front sheave 09 of the longitudinal beam above the equipment frame, it points towards the drum 02, first passing through the notch or round hole of nut 22b, then sequentially winding around the spiral groove machined on the surface of the drum 02, and finally being fastened to the drum 02.

[0054] As can be seen from the foregoing, the direction of the screw thread 20 is the same as the direction of the spiral groove of the steel cable wound on the drum 02, the pitch is related to the arrangement distance of the spiral groove of the steel cable wound on the drum 02, and is related to the tooth ratio of the driving sprocket 10 and the driven sprocket 13, so that when the drum 02 rotates, the screw 20 is driven to rotate by the driving sprocket 10, the chain 11, and the driven sprocket 13, and the lateral displacement distance completed by the nuts 1 22a and 22b on the outer surface of the screw 20 is completely consistent with the lateral displacement completed by the rear steel cable 05 and the front steel cable 06 on the outer surface of the drum 02.

[0055] Referring to the foregoing and comparing with the figure: the drum 02 is equipped with two reciprocating swing units, which are respectively located below the front rope wheel 09 and the rear rope wheel 07, including a mounting base, a rotating shaft, and a base plate; since the structure is simple and the relevant structure is already fully clear in the text description, for the sake of clarity, the mounting base, rotating shaft, and base plate are not shown in the figure.

[0056] As can be seen from the foregoing: the mounting base of the reciprocating swing unit installed with the drum 02 is firmly installed on the left longitudinal beam 08 of the equipment frame, and a circular hole is machined vertically; the rotating shaft is set on the circular hole and can rotate freely; the base plate is firmly connected to the rotating shaft and can swing reciprocally horizontally relative to the mounting base; the front rope wheel 09 and the rear rope wheel 07 are firmly installed on the corresponding base plate through the corresponding rope wheel base; after installation, the vertical downward projection of the center line of the groove of the front rope wheel 09 and the rear rope wheel 07 intersects with the rotation center of the rotating shaft, and the front rope wheel 09 and the rear rope wheel 07 can rotate freely in the horizontal direction around the rotation center line of the rotating shaft, and swing reciprocally horizontally under the action of the lateral force of the steel cable.

[0057] As can be seen from the figure, Figure 4 The front steel cable 06 and the rear steel cable 05 shown have a large number of turns on the drum 02, and the corresponding position of the vehicle platform is the raised position. Figure 3 The front steel cable 06 and the rear steel cable 05 shown have fewer turns on the drum 02, and the corresponding position of the vehicle platform is the lowered position.

[0058] As shown in the figure, the rear steel cable 05 and the front steel cable 06 move laterally while being wound on the drum 02. During this period, the nuts 1 22a and 22b move laterally synchronously and in the same direction, always clamping and positioning the rear steel cable 05 and the front steel cable 06, so that there will be no derailment or jumping phenomenon on the drum 02.

[0059] As shown in the figure, the front sheave 09 and the rear sheave 07 both have a horizontal clockwise adaptive swing relative to the longitudinal centerline of the equipment frame, so that the front steel cable 06 and the rear steel cable 05 will not generate lateral friction on the grooves of the front sheave 09 and the rear sheave 07.

[0060] Figure 5 , Figure 6 The diagram shown is a top view of another embodiment of this application; for comparison Figure 3 , Figure 4 It can be seen that, Figure 5 , Figure 6 The embodiments shown are mainly in Figure 3 , Figure 4 Based on the above, a left over-limit detection unit 30 and a right over-limit detection unit 31 are added. Other minor modifications are that the positions of the drive sprocket 10, chain 11, and driven sprocket 13 are changed from the right side near the drum 02 to the right side near the right support 12, so as to facilitate the installation of the right over-limit detection unit 31 on the left side of the right support 12. As can be seen in the figure, the left over-limit detection unit 30 is installed on the left side of the left support 14.

[0061] As described above: the left over-limit detection switch 30 is a position switch located on the left side, detecting the left end face of nut 22a and connected to the equipment control system signal; the right over-limit detection switch 31 is a position switch located on the right side, detecting the right end face of nut 22b and connected to the equipment control system signal. When nut 22a moves laterally to the left beyond a predetermined position (nut 22b moves synchronously and in the same direction), the left over-limit detection switch 30 is triggered, sending an over-limit signal to the equipment control system, causing the equipment control system to stop operating urgently. When nut 22b moves laterally to the right beyond a predetermined position (nut 22a moves synchronously and in the same direction), the right over-limit detection switch 31 is triggered, sending an over-limit signal to the equipment control system, causing the equipment control system to stop operating urgently. The left over-limit detection switch 30 and the right over-limit detection switch 31 can serve as redundant safety detection devices for the equipment, further increasing the safety of equipment operation.

[0062] In addition, from Figure 3 , Figure 4 , Figure 5 , Figure 6It can be seen that the reciprocating swing unit of this application enables the rope pulley to make adaptive autonomous swinging under the lateral pressure of the steel cable, which can significantly reduce the occurrence of the steel cable derailing and jumping off the drum surface. Therefore, installing only the reciprocating swing unit can be considered the simplest solution of this application.

[0063] The technical solution of this application does not involve other technical means shown in the above embodiments. Those skilled in the art should be able to clearly understand this by referring to the above embodiments and the relevant textual descriptions in this application. Further details are omitted here.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for synchronous arrangement of steel cables and adaptive swing of rope pulleys, characterized in that: The device is installed in conjunction with each drum and includes a drive unit, a synchronous displacement unit, a reciprocating swing unit, and a detection unit. The drive unit includes a left support base, a right support base, a drive sprocket, a driven sprocket, a chain, and a tension sprocket; one set is installed for each of the drums. The left support is located on the left side of the drum, with one end fixedly mounted on the equipment frame, and the outer side of the other end facing the direction of the rope sheave for lifting the traction vehicle platform, exceeding the maximum diameter of the drum, and having a shaft hole with its central axis parallel to the central axis of the drum; the right support is located on the right side of the drum, with one end fixedly mounted on the equipment frame, and the outer side of the other end facing the direction of the rope sheave for lifting the traction vehicle platform, exceeding the maximum diameter of the drum, and having a shaft hole with its central axis parallel to the central axis of the drum; the center line of the shaft hole of the left support and the center line of the shaft hole of the right support are the same straight line; The drive sprocket is coaxially and securely mounted with the drum, and is located on the left or right side of the drum, rotating synchronously with the drum; the driven sprocket is located at the outward extension position of the steel cable wound on the drum, corresponding to the installation position of the drive sprocket; the chain has a ring structure and is wound around the drive sprocket and the driven sprocket respectively. The tension sprocket is positioned on the path of the chain and can rotate freely; The synchronous displacement unit includes a screw, a positioning rod, and a nut. The screw has an external thread machined in its middle position, and its two ends are respectively located on the shaft holes of the left and right support seats, allowing it to rotate freely. The driven sprocket is securely mounted on the screw. The positioning rod is securely located in the middle position of the left and right support seats, and has a circular or rectangular cross-section. The nut has an internal thread matching the external thread of the screw and is located in the middle position of the screw. A through hole matching the cross-sectional shape of the positioning rod is machined on its outer side, so that the nut is radially limited by the positioning rod and cannot rotate. When the screw rotates, the nut moves laterally along the surface of the screw. The nut has a notch or round hole at the position where the steel cable passes through, which can limit the lateral position of the passing steel cable. The direction of the screw thread is the same as the direction of the spiral grooves around which the steel cable of the drum is wound, and the pitch is related to the arrangement distance of the spiral grooves around which the steel cable of the drum is wound, and is related to the ratio of the number of teeth of the driving sprocket and the driven sprocket. There are two reciprocating swing units, respectively located below the front and rear sheaves, including a slewing bearing and a base plate; the fixed ring of the slewing bearing is fastened to the longitudinal beam of the equipment frame; the base plate is fastened to the rotating ring of the slewing bearing, enabling it to reciprocate horizontally relative to the fixed ring; the front and rear sheaves are fastened to the corresponding base plates via corresponding sheave bases. After installation, the vertical projection of the center line of the groove of the front rope pulley and the rear rope pulley intersects with the rotation center of the rotating ring. The front rope pulley and the rear rope pulley can rotate freely in the horizontal direction around the rotation center line of the rotating ring, and swing back and forth horizontally under the action of the lateral force of the steel cable. The detection unit includes a chain break detection switch; the chain break detection switch is a position switch, set above the chain, and detects the vertical displacement of the chain, and is connected to the equipment control system signal. The detection unit includes a left over-limit detection switch and a right over-limit detection switch; the left over-limit detection switch is a position switch located on the left side, and the detection object is the left end face of the nut, which is connected to the equipment control system signal; the right over-limit detection switch is a position switch located on the right side, and the detection object is the right end face of the nut, which is connected to the equipment control system signal. The spiral groove of the steel cable winding on the drum is a double-headed spiral, with two steel cables matched; the nut is a single nut, which is provided with a notch or a round hole to accommodate the two steel cables respectively, thereby limiting the lateral position of the two steel cables passing through.

2. The cable synchronous arrangement and rope wheel adaptive swing device according to claim 1, characterized in that: The chain is a roller chain or a toothed chain; the driving sprocket, the driven sprocket, and the tensioning sprocket are matched with the chain.

3. The cable synchronous arrangement and sheave adaptive swing device according to claim 1, characterized in that: The notch or hole provided in the nut for accommodating the steel cable has a roller installed on the side near the drum, the roller having a rotation axis perpendicular to the center line of the steel cable; the roller makes rolling contact with the steel cable as it passes through.

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