A compensating chain guide device

Abstract

The present invention discloses a compensating chain guiding device, comprising four pulleys for guiding the compensating chain, a pulley mounting device for mounting the pulleys and a mounting seat for mounting the pulley mounting device, wherein a rectangular space is formed between the four pulleys for the compensating chain to pass through and guide the compensating chain, a pulley mounting device is respectively provided on a set of diagonals of the rectangular space, the pulleys are connected to the pulley mounting device by a pulley shaft, a buckling device for fixing the pulley shaft and a cavity providing space for the buckling device to buckle the pulley shaft or release the pulley shaft for swinging, through holes are provided on both side surfaces of the pulley mounting device close to the pulley for the pulley shaft to pass through the cavity, and the pulley can be quickly installed or replaced by the buckling device.

Description

Technical Field

[0001] The invention relates to a compensating chain guiding device. Background Art

[0002] As the elevator moves up and down, the length of the wire rope on the car side and the counterweight side is constantly changing, thereby changing the weight on both sides of the traction wheel. At this time, it is necessary to install a compensation chain to balance the weight on the car side and the counterweight side to make the elevator run smoothly. However, the compensation chain will swing during the operation of the elevator, so the compensation chain may hook onto other parts of the elevator, causing damage to the hooked parts. Therefore, a guide device for the compensation chain must be installed to reduce the swing amplitude of the compensation chain.

[0003] The compensating chain guide device on the market generally fixes the pulley on the mounting base with a screw, which is cumbersome to install and cannot be installed quickly. When the pulley is damaged, the damaged pulley cannot be quickly removed and replaced. For the sake of convenience, some maintenance personnel will directly discard the damaged compensating chain guide device and replace it with a new one, which will cause a great waste. There is currently no effective way to solve the above problems.

[0004] The present invention is made based on the above situation. Summary of the invention

[0005] The invention overcomes the shortcomings of the prior art and provides a compensating chain guide device capable of quickly replacing pulleys.

[0006] The present invention is achieved through the following technical solutions:

[0007] A compensation chain guide device comprises four pulleys for guiding the compensation chain, a pulley mounting device for mounting the pulleys and a mounting seat for mounting the pulley mounting device, wherein the four pulleys form a rectangular space for the compensation chain to pass through and guide the compensation chain, a pulley mounting device is provided on each of a set of diagonals of the rectangular space, the pulleys are connected to the pulley mounting device by a pulley shaft, a buckling device for fixing the pulley shaft and a cavity for providing space for the buckling device to buckle the pulley shaft or release the pulley shaft for swinging, and through holes are provided on both side surfaces of the pulleys close to the pulleys for the pulley shaft to pass through and enter the cavity.

[0008] The above-mentioned buckling device includes a clamping block hinged in the pulley installation device that can clamp or release the pulley shaft. A spring that allows the clamping block to clamp the pulley shaft is provided between the clamping block and the inner wall of the pulley installation device. The clamping block is provided with a control structure that can control the clamping block to open to both sides.

[0009] The control structure includes a first connecting rod connected and fixed on the card block and a pressing column extending from the upper end surface of the pulley mounting device for people to press to control the card block to open to both sides. A second connecting rod is provided between the first connecting rod and the pressing column, which is hinged to the first connecting rod and the pressing column at both ends.

[0010] One end of the pulley shaft is provided with a thread, and the other end is provided with a protrusion for a clamping block to buckle the pulley shaft, and a shoulder for limiting the position of the pulley is provided on the side of the pulley shaft close to the protrusion.

[0011] A recessed groove for receiving the shaft shoulder is provided on the outer wall of the pulley installation device at the position of the through hole, and the depth of the recessed groove is smaller than the thickness of the shaft shoulder.

[0012] The mounting seat comprises an upper connecting plate and a lower connecting plate, both of which are provided with an O-shaped through hole, the O-shaped through holes on the upper connecting plate and the lower connecting plate are oriented in opposite directions, and the upper connecting plate and the lower connecting plate are connected together by bolts through the O-shaped through holes.

[0013] The right end of the upper connecting plate is provided with a first connecting plate connected to a pulley mounting device.

[0014] A second connecting plate for connecting to the first connecting plate is provided below the left end of the pulley mounting device, and the first connecting plate and the second connecting plate are connected by bolts.

[0015] A support rod for controlling the height of the mounting seat is provided below the above-mentioned mounting seat, and the support rod includes an upper end rod and a lower end rod. A first screw is provided below the upper end rod, and a second cavity is provided in the center of the lower end rod for the first screw to move up and down. A second screw is provided at the upper end of the lower end rod for meshing with the first screw and controlling the upper end rod to move up and down.

[0016] A bottom plate is provided at the lowest end of the support rod, and bolt holes are provided on the bottom plate for allowing expansion bolts to pass through and fix the bottom plate on the floor.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The pulley installation device of the present invention is provided with a card block and a control structure for controlling the card block to release the pulley shaft. When disassembling the pulley, it is only necessary to press the pressing column of the control structure, and the card block will release the pulley shaft. At this time, the pulley can be directly removed. When installing a new pulley, it is only necessary to press the pressing column of the control structure, extend the pulley shaft with the pulley installed into the pulley installation device, and release the pressing column of the control structure. At this time, the card block will clamp the pulley shaft, and the disassembly and assembly of the pulley is very convenient and quick.

[0019] 2. The upper connecting plate and the lower connecting plate of the mounting seat are respectively provided with splayed through holes facing opposite directions. When installing the pulley mounting device, the position of the pulley can be fine-tuned forward, backward, left and right through the splayed through holes so that the compensation chain is located in the center of the rectangular space formed by the four pulleys.

[0020] 3. The support rod includes an upper rod and a lower rod. A first screw is provided under the upper rod, and a second screw engaged with the first screw is provided on the lower rod. The length of the support rod can be controlled by twisting the second screw, thereby changing the height of the four pulleys. The adjustment is very convenient and quick, and there is no need to replace the support rod.

[0021] 4. A groove is provided on the outer wall of the pulley installation device at the position of the through hole. When the pulley shaft is inserted into the pulley installation device, the shoulder of the pulley shaft is placed in the groove to limit the position of the pulley, thereby preventing friction between the pulley and the pulley installation device and reducing the shaking of the pulley shaft when the compensation chain guide device is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is a structural schematic diagram of a compensation chain guide device of the present invention;

[0024] Figure 2 is a top view of a compensation chain guide device of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the pulley shaft in the present invention;

[0026] Figure 4 is a cross-sectional view of the pulley mounting device of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the control structure in the present invention;

[0028] Figure 6 It is a cross-sectional view of the support rod in the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings:

[0030] like Figures 1 to 6A compensation chain guiding device shown in the figure includes four pulleys 1 for guiding the compensation chain, a pulley mounting device 2 for mounting the pulleys 1 and a mounting seat 3 for mounting the pulley mounting device 2, the four pulleys 1 form a rectangular space for the compensation chain to pass through and guide the compensation chain, a pulley mounting device 2 is provided on each of a set of diagonals of the rectangular space, the pulley 1 and the pulley mounting device 2 are connected by a pulley shaft 4, the interior of the pulley mounting device 2 is provided with a buckling device for fixing the pulley shaft 4 and a cavity 6 for providing space for the buckling device to buckle the pulley shaft 4 or release the pulley shaft 4 for swinging, and the pulley mounting device 2 is provided with through holes on both side surfaces close to the pulley 1 for the pulley shaft 4 to pass through and enter the cavity 6.

[0031] The above-mentioned buckling device includes a clamping block 5 hinged in the pulley mounting device 2 which can buckle or release the pulley shaft 4. A spring 12 is provided between the clamping block 5 and the inner wall of the pulley mounting device 2, which can enable the clamping block 5 to clamp the pulley shaft 4. The clamping block 5 is provided with a control structure which can control the clamping block 5 to open to both sides.

[0032] When installing the compensation chain guide device, the control structure controls the block 5 to open to both sides, and the pulley shaft 4 with the installed pulley 1 is inserted into the cavity 6 of the pulley installation device 2 through the through hole, and then the control structure is released. At this time, the spring next to the block 5 will press the block 5 to rotate the block 5 toward the pulley shaft 4 to clamp and fix the pulley shaft 4. When the pulley 1 needs to be replaced, the pulley 1 and the pulley shaft 4 can be directly pulled out by simply opening the block 5 to both sides through the control device. There is no need to unscrew the nut to replace the pulley 1. The disassembly and assembly of the pulley 1 is very convenient and quick.

[0033] The above-mentioned control structure includes a first connecting rod 7 connected and fixed on the block 5 and a pressing column 8 extending from the upper end surface of the pulley mounting device 2 for people to press to control the block 5 to open to both sides. A second connecting rod 9 is provided between the first connecting rod 7 and the pressing column 8, which is hinged at both ends to the first connecting rod 7 and the pressing column 8.

[0034] The two ends of the second connecting rod 9 are hinged to the first connecting rod 7 and the pressing column 8 respectively. When the block 5 is controlled to open to both sides by the control structure, the pressing column 8 is extended from the upper end surface of the pulley mounting device 2 by pressing, and the pressing column 8 moves downward and presses the end of the second connecting rod 9 hinged to the pressing column 8 downward. Because the first connecting rod 7 is connected and fixed to the block 5, the end of the second connecting rod 9 hinged to the first connecting rod 7 cannot move downward. At this time, the second connecting rod 9 will push the first connecting rod 7 to move to both sides and open the block 5 to both sides.

[0035] like Figure 3 to Figure 4As shown, one end of the pulley shaft 4 is provided with a thread, and the other end is provided with a protrusion 41 for the clamping block 5 to buckle the pulley shaft 4. The side of the pulley shaft 4 close to the protrusion 41 is provided with a shoulder 42 for limiting the position of the pulley 1.

[0036] A recessed groove is provided on the outer wall of the pulley mounting device 2 at the position of the through hole, and the shaft shoulder 42 is received therein. The depth of the recessed groove is smaller than the thickness of the shaft shoulder 42 .

[0037] When installing the pulley 1 on the pulley shaft 4, the shoulder 42 can limit the installation position of the pulley 1, so that there is a distance between the pulley 1 and the protrusion 41 so that the pulley shaft 4 can be smoothly inserted into the pulley mounting device 2 without being blocked by the pulley 1. The depth of the groove on the outer wall of the pulley mounting device 2 is less than the thickness of the shoulder 42, so that after the pulley 1 is installed, there can be a gap between the pulley 1 and the outer wall of the pulley mounting device 2 to prevent the pulley 1 from rubbing against the outer wall of the pulley mounting device 2, thereby increasing the service life of the pulley 1.

[0038] like Figure 1 to Figure 2 As shown, the mounting base 3 includes an upper connecting plate 31 and a lower connecting plate 32, and the upper connecting plate 31 and the lower connecting plate 32 are both provided with an O-shaped through hole 33, and the O-shaped through holes 33 on the upper connecting plate 31 and the lower connecting plate 32 are oriented in opposite directions, and the upper connecting plate 31 and the lower connecting plate 32 are connected together by bolts through the O-shaped through holes 33.

[0039] Both the upper connecting plate 31 and the lower connecting plate 32 are provided with an eight-shaped through hole 33, and the directions of the eight-shaped through holes 33 are opposite. When connecting the upper connecting plate 31 and the lower connecting plate 32, the hole shape of the eight-shaped through hole 33 allows the upper connecting plate 31 to be fine-tuned in the front, back, left and right directions according to the position of the compensation chain, so that the compensation chain is located in the center of the rectangular space formed by the four pulleys 1, and then the upper connecting plate 31 is fixed to the lower connecting plate 32 by passing bolts through the eight-shaped through hole 33.

[0040] A first connecting plate 311 connected to the pulley mounting device 2 is provided at the right end of the upper connecting plate 31 .

[0041] A second connecting plate 312 for connecting to the first connecting plate 311 is provided below the left end of the pulley mounting device 2 , and the first connecting plate 311 and the second connecting plate 312 are connected by bolts.

[0042] like Figure 1 and Figure 6As shown, a support rod 10 for controlling the height of the mounting seat 3 is provided below the mounting seat 3, and the support rod 10 includes an upper end rod 101 and a lower end rod 102, a first screw rod 103 is provided below the upper end rod 101, a second cavity 104 is provided in the center of the lower end rod 102 for the first screw rod 103 to move up and down, and a second screw rod 105 is provided at the upper end of the lower end rod 102 for meshing with the first screw rod 103 and controlling the upper end rod 101 to move up and down.

[0043] Because the first screw 103 is meshed with the second screw 105, when installing the compensation chain guide device, according to the position of the compensation chain, the second screw 105 is rotated to move the first screw 103 up or down, so that the length of the support rod 10 changes. Because the mounting seat 3 is fixed on the support rod 10, the pulley 1 and the pulley mounting device 2 are fixed on the mounting seat 3, the four pulleys 1 can move to a suitable height according to the change in the length of the support rod 10 to guide the compensation chain.

[0044] A bottom plate 11 is disposed at the lower end of the support rod 10 , and bolt holes are provided on the bottom plate 11 for allowing expansion bolts to pass through and fix the bottom plate 11 to the floor.

[0045] The compensation chain guide device is fixed to the ground with expansion bolts passing through the bolt holes to prevent the compensation chain guide device from being pulled up by the compensation chain when the elevator is running, thereby losing the guiding effect.

Claims

1. A compensating chain guide device, characterized in that: The invention comprises four pulleys (1) for guiding a compensation chain, a pulley mounting device (2) for mounting the pulleys (1) and a mounting seat (3) for mounting the pulley mounting device (2); a rectangular space for the compensation chain to pass through and guide the compensation chain is formed between the four pulleys (1); a pulley mounting device (2) is respectively arranged at a set of diagonal corners of the rectangular space; the pulleys (1) and the pulley mounting device (2) are connected by a pulley shaft (4); a buckling device for fixing the pulley shaft (4) and a cavity (6) for providing space for the buckling device to buckle the pulley shaft (4) or release the pulley shaft (4) for swinging; and through holes for the pulley shaft (4) to pass through and enter the cavity (6) are arranged on both side surfaces of the pulley mounting device (2) close to the pulleys (1); The mounting seat (3) comprises an upper connecting plate (31) and a lower connecting plate (32); The buckling device comprises a clamping block (5) hinged in the pulley mounting device (2) and capable of clamping or releasing the pulley shaft (4); a spring (12) is provided between the clamping block (5) and the inner wall of the pulley mounting device (2) and capable of enabling the clamping block (5) to clamp the pulley shaft (4); and a control structure is provided on the clamping block (5) that can control the clamping block (5) to open to both sides.

2. A compensating chain guide device according to claim 1, characterized in that: The control structure comprises a first connecting rod (7) connected and fixed to the clamping block (5) and a pressing column (8) extending from the upper end surface of the pulley mounting device (2) for a person to press to control the clamping block (5) to open to both sides, and a second connecting rod (9) is provided between the first connecting rod (7) and the pressing column (8) and is hinged to the first connecting rod (7) and the pressing column (8) at both ends.

3. A compensating chain guide device according to claim 2, characterized in that: One end of the pulley shaft (4) is provided with a thread, and the other end is provided with a protrusion (41) for the clamping block (5) to buckle the pulley shaft (4), and a shoulder (42) for limiting the position of the pulley (1) is provided on the side of the pulley shaft (4) close to the protrusion (41).

4. A compensating chain guide device according to claim 3, characterized in that: An inwardly concave groove for receiving the shaft shoulder (42) is provided on the outer wall of the pulley mounting device (2) at the position of the through hole, and the depth of the groove is smaller than the thickness of the shaft shoulder (42).

5. The compensating chain guide device according to claim 1, characterized in that: The upper connecting plate (31) and the lower connecting plate (32) are both provided with an O-shaped through hole (33), the O-shaped through holes (33) on the upper connecting plate (31) and the lower connecting plate (32) are oriented in opposite directions, and the upper connecting plate (31) and the lower connecting plate (32) are connected together by bolts via the O-shaped through holes (33).

6. A compensating chain guide device according to claim 5, characterized in that: A first connecting plate (311) connected to a pulley mounting device (2) is provided at the right end of the upper connecting plate (31).

7. A compensating chain guide device according to claim 6, characterized in that: A second connecting plate (312) for connecting to the first connecting plate (311) is provided below the left end of the pulley mounting device (2); the first connecting plate (311) and the second connecting plate (312) are connected by bolts.

8. The compensating chain guide device according to claim 5, characterized in that: A support rod (10) for controlling the height of the mounting seat (3) is provided below the mounting seat (3), the support rod (10) comprising an upper end rod (101) and a lower end rod (102), a first screw rod (103) is provided below the upper end rod (101), a second cavity (104) for the first screw rod (103) to move up and down is provided in the center of the lower end rod (102), and a second screw rod (105) is provided at the upper end of the lower end rod (102) for meshing with the first screw rod (103) and controlling the upper end rod (101) to move up and down.

9. A compensating chain guide device according to claim 8, characterized in that: The lowermost end of the support rod (10) is provided with a bottom plate (11), and the bottom plate (11) is provided with bolt holes for allowing expansion bolts to pass through to fix the bottom plate (11) to the floor.

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