Steel wire rope and chain dual traction hoisting system

Abstract

The application provides a steel wire rope and chain dual traction lifting system, which comprises a first rope head support and a second rope head support installed on a top base, a rotatable traction wheel arranged between the first rope head support and the second rope head support on the top base, a rotatable counterweight hoisting wheel arranged at the upper end of a counterweight, a rotatable car hoisting wheel arranged at the upper end of a car frame, and a traction cable, wherein the first end of the traction cable is connected to the second rope head support, the second end of the traction cable passes under the counterweight hoisting wheel, passes over the upper end of the traction wheel, and then passes under the car hoisting wheel, and the second end of the traction cable is connected to the first rope head support, a first sprocket wheel is arranged on one side of the traction wheel and rotates synchronously with the traction wheel, a traction chain is arranged and passes over the first sprocket wheel, the first end of the traction chain is used for connecting the counterweight, and the second end of the traction chain is used for connecting the car frame, so that the problem of large car inclination caused by creep under heavy load in a single steel wire rope traction system is solved.

Description

Technical Field

[0001] This utility model relates to the field of automated parking systems, and in particular to a dual traction lifting system consisting of a steel wire rope and a chain. Background Technology

[0002] Modern automated parking systems typically use automated car lifts equipped with transport mechanisms to move vehicles to their designated parking spaces. Existing car lift structures usually employ a motor or hydraulic system at the top to raise the car platform via chains or steel cables. For example, the lifting structure described in CN219081165U automated parking system uses a single motor paired with pulley blocks, connected to the four corners of the car via a complex steel cable looping method.

[0003] Existing traction lifting systems are mainly divided into two types: wire rope lifting and chain lifting. Wire rope has advantages such as high safety and low noise, but it has large creep under load, which can easily cause the car to tilt. Chain has small creep, but if all the weight is concentrated on the chain, it is noisier and less safe. Utility Model Content

[0004] This utility model provides a dual traction lifting system with steel wire rope and chain, which solves the problem of easy car tilting due to creep under heavy load in a single steel wire rope traction system.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a double traction lifting system of steel wire rope and chain, including a first rope head bracket and a second rope head bracket installed on a top base, a rotatable traction wheel is provided between the first rope head bracket and the second rope head bracket on the top base, a rotatable counterweight sheave is provided at the upper end of the counterweight block, a rotatable car sheave is provided at the upper end of the car frame, and a traction cable is also provided. The first end of the traction cable is connected to the second rope head bracket, the second end of the traction cable passes under the counterweight sheave and then passes over the upper end of the traction wheel, and continues to pass under the car sheave before being connected to the first rope head bracket. A first sprocket that rotates synchronously with the traction wheel is provided on one side of the traction wheel, and a traction chain is also provided. The traction chain passes over the first sprocket, the first end of the traction chain is used to connect to the counterweight block, and the second end of the traction chain is used to connect to the car frame.

[0006] In the preferred embodiment, the pitch circle diameter of the traction wheel is twice the pitch circle diameter of the first sprocket, the first end of the traction chain is connected to the upper end of the counterweight, and the second end of the traction chain is connected to the upper end of the car frame.

[0007] In the preferred embodiment, the pitch circle diameter of the traction wheel is equal to that of the first sprocket. A second sprocket that rotates synchronously with the counterweight sprocket is provided on one side of the counterweight sprocket, and a third sprocket that rotates synchronously with the car sprocket is provided on one side of the car sprocket. The first end of the traction chain is connected to the second rope head bracket, and the second end of the traction chain passes around the second sprocket, the first sprocket, and the third sprocket in sequence and is connected to the first rope head bracket.

[0008] In a preferred embodiment, a power system is also provided on the top base. The power system includes a first-side power mechanism and a second-side power mechanism. Both the first-side power mechanism and the second-side power mechanism include a drive motor. The output end of the drive motor is connected to a drive shaft. Steering boxes are provided at both ends of the drive shaft. A traction wheel is provided at one end of each steering box.

[0009] In a preferred embodiment, a rotatable drive shaft is provided between the first power mechanism and the second power mechanism, and the two ends of the drive shaft are respectively connected to the steering boxes of the first power mechanism and the second power mechanism.

[0010] In a preferred embodiment, the steering gearbox includes a rotatable first connecting shaft, a second connecting shaft, and a third connecting shaft. One end of the second connecting shaft is provided with a second bevel gear, and the first bevel gear and the third bevel gear are respectively meshed on both sides of the second bevel gear. The first bevel gear is sleeved with the first connecting shaft, and the third bevel gear is sleeved with the third connecting shaft. The first connecting shaft is connected to each traction wheel, the second connecting shaft is connected to each drive shaft, and the third connecting shaft is connected to each transmission shaft.

[0011] In the preferred embodiment, the traction wheel is provided with a boss, the first sprocket is sleeved with the boss, and the first sprocket is provided with a plurality of locking bolts along the circumference, the locking bolts being threadedly connected to the traction wheel.

[0012] The beneficial effects of this utility model are as follows: the simultaneous traction of steel wire rope and chain distributes the load, overcoming both the large creep defect of steel wire rope and the problems of high noise and poor safety of chain under heavy load; the use of dual geared motors to connect the four traction wheels into a whole through four steering boxes and two synchronous shafts means that when one geared motor fails, the other geared motor can still work normally without affecting the user's vehicle retrieval; the stacked arrangement of the geared motors and the equal length of the four traction cables are conducive to the balance of the four corners of the car. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is a top view of the present invention.

[0016] Figure 3 This refers to the cable winding method when the traction wheel and the first sprocket have the same diameter.

[0017] Figure 4 This refers to the cable winding method when the traction wheel and the first sprocket have different diameters.

[0018] Figure 5 This is a structural diagram of the traction wheel and the first sprocket.

[0019] Figure 6 This is a cross-sectional view of the traction wheel and the first sprocket.

[0020] Figure 7 This is a simplified view of the inside of the steering gearbox.

[0021] In the diagram: Top base 1; Power system 2; Drive motor 201; Drive shaft 202; Transmission shaft 203; Pull wheel 3; First sprocket 301; Boss 302; Threaded hole 303; Locking bolt 304; First rope head bracket 4; Second rope head bracket 5; Counterweight block 6; Counterweight hanging wheel 601; Car frame 7; Car hanging wheel 701; Pull cable 8; Pull chain 9; Steering box 10; First connecting shaft 1001; Second connecting shaft 1002; Third connecting shaft 1003; First bevel gear 1004; Second bevel gear 1005; Third bevel gear 1006; First side power mechanism 11; Second side power mechanism 12. Detailed Implementation

[0022] like Figure 1-7 A double traction lifting system with wire rope and chain is provided, including a first rope head bracket 4 and a second rope head bracket 5 installed on a top base 1. A rotatable traction wheel 3 is also provided between the first rope head bracket 4 and the second rope head bracket 5 on the top base 1. A rotatable counterweight wheel 601 is provided on the upper end of a counterweight block 6. A rotatable car wheel 701 is provided on the upper end of a car frame 7. A traction cable 8 is also provided. The first end of the traction cable 8 is connected to the second rope head bracket 5. The second end of the traction cable 8 passes under the counterweight wheel 601 and then passes over the upper end of the traction wheel 3. It continues to pass under the car wheel 701 and then the second end of the traction cable 8 is connected to the first rope head bracket 4. A first sprocket 301 that rotates synchronously with the traction wheel 3 is provided on one side of the traction wheel 3. A traction chain 9 is also provided. The traction chain 9 passes over the first sprocket 301. The first end of the traction chain 9 is used to connect to the counterweight block 6, and the second end of the traction chain 9 is used to connect to the car frame 7.

[0023] In the preferred embodiment, the pitch circle diameter of the traction wheel 3 is twice the pitch circle diameter of the first sprocket 301, the first end of the traction chain 9 is connected to the upper end of the counterweight block 6, and the second end of the traction chain 9 is connected to the upper end of the car frame 7.

[0024] Because the pitch circle diameter of the traction wheel 3 is twice that of the first sprocket 301, the moving speed of the traction cable 8 is twice that of the traction chain 9. However, since the counterweight 6 and the car frame 7 are connected by a movable pulley system, their moving speed is half that of the traction cable 8, which is exactly equal to the moving speed of the traction chain 9. Therefore, the wire rope and the chain act simultaneously on the car and the counterweight, and their speeds are consistent.

[0025] In the preferred embodiment, the pitch circle diameter of the traction wheel 3 is equal to that of the first sprocket 301. A second sprocket that rotates synchronously with the counterweight sprocket 601 is provided on one side of the counterweight sprocket 601. A third sprocket that rotates synchronously with the car sprocket 701 is provided on one side of the car sprocket 701. The first end of the traction chain 9 is connected to the second rope head bracket 5. The second end of the traction chain 9 passes through the second sprocket, the first sprocket 301 and the third sprocket in sequence and is connected to the first rope head bracket 4.

[0026] In this case, the traction cable 8 and traction chain 9 are wound in the same way, and their projected positions overlap in the figure, and their moving speeds are also the same.

[0027] In a preferred embodiment, a power system 2 is also provided on the top base 1. The power system 2 includes a first-side power mechanism 11 and a second-side power mechanism 12. Both the first-side power mechanism 11 and the second-side power mechanism 12 include a drive motor 201. The output end of the drive motor 201 is connected to the drive shaft 202. Both ends of the drive shaft 202 are provided with steering boxes 10, and one end of each steering box 10 is provided with a traction wheel 3.

[0028] In a preferred embodiment, a rotatable drive shaft 203 is provided between the first power mechanism 11 and the second power mechanism 12, and the two ends of the drive shaft 203 are respectively connected to the steering box 10 of the first power mechanism 11 and the second power mechanism 12.

[0029] In a preferred embodiment, the steering gearbox 10 includes a rotatable first connecting shaft 1001, a second connecting shaft 1002, and a third connecting shaft 1003. One end of the second connecting shaft 1002 is provided with a second bevel gear 1005. The two sides of the second bevel gear 1005 are respectively meshed with a first bevel gear 1004 and a third bevel gear 1006. The first bevel gear 1004 is sleeved with the first connecting shaft 1001, and the third bevel gear 1006 is sleeved with the third connecting shaft 1003. The first connecting shaft 1001 is connected to each traction wheel 3, the second connecting shaft 1002 is connected to each drive shaft 202, and the third connecting shaft 1003 is connected to each transmission shaft 203.

[0030] The two drive motors 201 of the first side power mechanism 11 and the second side power mechanism 12 adopt motor coordinated control to avoid asynchrony. Each traction wheel 3 is arranged at the four corners of the top base 1 to form a four-wheel synchronous traction system, which synchronously lifts the four corners of the car frame 7 and connects to four counterweights 6, making the lifting of the car frame 7 more stable.

[0031] In the preferred embodiment, the traction wheel 3 is provided with a boss 302, the first sprocket 301 is sleeved with the boss 302, and the first sprocket 301 is provided with a plurality of locking bolts 304 along the circumference, and the locking bolts 304 are threadedly connected to the traction wheel 3.

[0032] The traction wheel 3 has multiple threaded holes 303 arranged circumferentially on its side, and the locking bolt 304 is threadedly connected to the threaded holes 303. The detachable design allows for flexible replacement of the first sprocket 301 with different diameter specifications.

[0033] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A double traction lifting system consisting of a steel wire rope and a chain, characterized in that: The system includes a first rope head bracket (4) and a second rope head bracket (5) mounted on the top base (1). A rotatable traction wheel (3) is also provided between the first rope head bracket (4) and the second rope head bracket (5) on the top base (1). A rotatable counterweight sheave (601) is provided at the upper end of the counterweight block (6). A rotatable car sheave (701) is provided at the upper end of the car frame (7). A traction cable (8) is also provided. The first end of the traction cable (8) is connected to the second rope head bracket (5), and the second end of the traction cable (8) is connected to the second rope head bracket (5). After passing under the heavy lifting wheel (601), it passes over the top of the traction wheel (3) and continues to pass under the car lifting wheel (701). The second end of the traction cable (8) is connected to the first rope head bracket (4). A first sprocket (301) that rotates synchronously with the traction wheel (3) is provided on one side of the traction wheel (3). A traction chain (9) is also provided. The traction chain (9) passes over the top of the first sprocket (301). The first end of the traction chain (9) is used to connect to the counterweight (6), and the second end of the traction chain (9) is used to connect to the car frame (7).

2. The steel wire rope and chain dual traction lifting system according to claim 1, characterized in that: The pitch circle diameter of the traction wheel (3) is twice the pitch circle diameter of the first sprocket (301). The first end of the traction chain (9) is connected to the upper end of the counterweight (6), and the second end of the traction chain (9) is connected to the upper end of the car frame (7).

3. The steel wire rope and chain dual traction lifting system according to claim 1, characterized in that: The pitch circle diameter of the traction wheel (3) is equal to that of the pitch circle diameter of the first sprocket (301). A second sprocket that rotates synchronously with the counterweight sprocket (601) is provided on one side of the counterweight sprocket (601). A third sprocket that rotates synchronously with the car sprocket (701) is provided on one side of the car sprocket (701). The first end of the traction chain (9) is connected to the second rope head bracket (5). The second end of the traction chain (9) passes around the second sprocket, the first sprocket (301) and the third sprocket in sequence and is connected to the first rope head bracket (4).

4. The steel wire rope and chain dual traction lifting system according to claim 1, characterized in that: The top base (1) is also provided with a power system (2), which includes a first side power mechanism (11) and a second side power mechanism (12). Both the first side power mechanism (11) and the second side power mechanism (12) include a drive motor (201). The output end of the drive motor (201) is connected to the drive shaft (202). Both ends of the drive shaft (202) are provided with steering boxes (10), and one end of each steering box (10) is provided with a traction wheel (3).

5. The steel wire rope and chain dual traction lifting system according to claim 4, characterized in that: A rotatable transmission shaft (203) is provided between the first power mechanism (11) and the second power mechanism (12). The two ends of the transmission shaft (203) are connected to the steering box (10) of the first power mechanism (11) and the second power mechanism (12), respectively.

6. The steel wire rope and chain dual traction lifting system according to claim 5, characterized in that: The steering box (10) includes a rotatable first connecting shaft (1001), a second connecting shaft (1002) and a third connecting shaft (1003). A second bevel gear (1005) is provided at one end of the second connecting shaft (1002). A first bevel gear (1004) and a third bevel gear (1006) are respectively meshed on both sides of the second bevel gear (1005). The first bevel gear (1004) is sleeved with the first connecting shaft (1001), and the third bevel gear (1006) is sleeved with the third connecting shaft (1003). The first connecting shaft (1001) is connected to each traction wheel (3), the second connecting shaft (1002) is connected to each drive shaft (202), and the third connecting shaft (1003) is connected to each transmission shaft (203).

7. The steel wire rope and chain dual traction lifting system according to claim 1, characterized in that: The traction wheel (3) is provided with a boss (302), the first sprocket (301) is sleeved with the boss (302), the first sprocket (301) is provided with multiple locking bolts (304) along the circumference, and the locking bolts (304) are threadedly connected to the traction wheel (3).

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