Elevator compensating chain suspension

Abstract

The application relates to the elevator technical field and discloses an elevator compensation chain suspension device which comprises C-shaped bases fixed at the bottoms of a car and a counterweight, suspension components and compensation components inserted between the C-shaped bases; the suspension components comprise a shell, a rotating handle coaxially connected with a large gear, eccentric motion assemblies one and two capable of cooperating with the large gear and arranged on the two sides of the large gear, and the eccentric motion assemblies one and two can be inserted into the C-shaped bases; the compensation components comprise a bearing fixed at the bottom of the shell and a connecting rod installed in the bearing, and the connecting rod is fixedly connected with a U-shaped fixing ring used for fixing the compensation chain; the scheme can solve the problem that the existing elevator compensation chain is prone to scratching other elevator components during work.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and more specifically to an elevator compensation chain suspension device. Background Technology

[0002] Traction elevators are the most common type of elevator used in vertical transportation. They consist of a car that carries passengers and steel cables and counterweights that traction the car. When the elevator reaches the top floor, most of the weight of the steel cables is on the counterweight side; when the elevator stops at the bottom floor, most of the weight of the steel cables is on the car side. The weight position of the steel cables changes constantly as the elevator moves up and down, which affects the weight balance of the traction elevator.

[0003] The elevator compensating chain is a crucial component of the elevator balancing system, its function being to compensate for traction imbalances caused by the movement of the wire rope's weight. When the wire rope moves towards the counterweight side, the compensating chain moves with the car to compensate; conversely, when the wire rope moves towards the car side, the compensating chain moves with the counterweight to the counterweight side, resulting in smoother elevator operation. However, existing technology still presents the following technical problems:

[0004] 1. Existing compensation chains are usually suspended from the bottom of the car and counterweight and fixed by U-shaped fixing rings and bolts. During elevator operation, the compensation chain will swing significantly, causing the compensation chain to scrape against elevator components such as the counterweight guard plate and buffer, producing abnormal noise. Over time, this may affect the normal operation of the equipment.

[0005] 2. To ensure the safe operation of the elevator, staff need to check the fixing status of the compensation chain after a period of use. Since the compensation chain of the existing technology is fixed at the bottom, it is not convenient for staff to check small bolts and other parts. Summary of the Invention

[0006] The present invention aims to provide an elevator compensation chain suspension device to solve the problem that existing elevator compensation chains are prone to scratching other elevator components during operation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An elevator compensation chain suspension device includes a C-shaped base fixed to the bottom of the car and the counterweight, a suspension component and a compensation component inserted between the C-shaped base; the suspension component includes a housing, a rotating handle coaxially connected to a large gear, and eccentric motion component one and eccentric motion component two respectively provided on both sides of the large gear, which can cooperate with the large gear, and the eccentric motion component one and eccentric motion component two can be inserted into the C-shaped base; the compensation component includes a bearing fixed to the bottom of the housing and a connecting rod installed in the bearing, the connecting rod being fixedly connected to a U-shaped fixing ring for fixing the compensation chain.

[0009] The principle and advantages of this scheme are:

[0010] 1. During elevator operation, the compensation chain will swing significantly. The structure uses bearings in conjunction with a freely rotating connecting rod. A U-shaped fixing ring is fixed below the connecting rod to fix the compensation chain. This can eliminate the stress generated during swinging, thereby minimizing the swing amplitude of the compensation chain. This prevents the compensation chain from scratching against elevator components such as the counterweight guard plate and buffer during swinging, which would affect the normal operation of the equipment. This helps to ensure the safe operation of the elevator equipment and extend its service life.

[0011] 2. After a period of operation, some components of the compensation components need to be inspected or replaced. The system includes C-shaped bases fixed to the bottom of the car and counterweight, and suspension components inserted between these bases. When elevator maintenance is required, staff only need to remove the suspension components from between the C-shaped bases to operate on level ground, eliminating the inconvenience of having to squat for extended periods at the bottom of the car or counterweight. Specifically, staff rotate the handle outside the casing to drive the large gear, which in turn causes the eccentric motion components one and two to detach from between the C-shaped bases. These components can then be laid horizontally on level ground outside the elevator shaft for inspection and maintenance, facilitating the work process.

[0012] Preferably, as an improvement, the compensation component further includes a bearing housing for fixing the bearing, the bearing housing being fixed to the bottom of the housing by bolts, and an eccentric motion component and a Y-shaped baffle fixedly connected to the lower end of the large gear, the bottom of the Y-shaped baffle being able to cover the bolts.

[0013] Beneficial effects: Due to the stress of the compensating chain, the bolts used to fix the bearing housing are prone to loosening after the elevator equipment has been running for a long time, which has an important impact on the safety of elevator operation. Therefore, the Y-shaped baffle is set so that its bottom can cover the bolts when the elevator equipment is running, which mainly plays a limiting role in preventing the bolts from loosening. When the elevator equipment needs to be inspected, at the same time as the large gear driven by the handle drives the eccentric motion component one and eccentric motion component two to disengage from the C-shaped base, the eccentric motion component three, which moves in coordination with the large gear and retracts at the same time, drives the Y-shaped baffle to retract and disengage from the position covering the bolts.

[0014] Preferably, as an improvement, both the eccentric motion component one and the eccentric motion component two include an eccentric gear, a movable block for mounting on the C-shaped base, an eccentric shaft fixed on the movable block, and a slide rail for guiding the movable block, wherein the movable block and the slide rail are slidably connected.

[0015] Beneficial effects: An eccentric gear generally includes a fixed eccentric shaft and a rotating eccentric wheel. The eccentric shaft is positioned away from the midpoint of the eccentric wheel. When the large gear drives the eccentric wheel to rotate around the eccentric shaft, it causes the eccentric shaft and the moving block fixedly connected to the eccentric shaft to reciprocate linearly. This reciprocating linear motion is characterized by the use of a slide rail as a guide, which ensures that the moving block can be easily inserted into or removed from the C-shaped base.

[0016] Preferably, as an improvement, the compensation component further includes a connecting plate, the two ends of which are fixed to the two ends of the U-shaped fixing ring, and the middle part of the connecting plate is fixed to the connecting rod.

[0017] Beneficial effects: The connecting plate is used to fix the two ends of the U-shaped plate and the bottom of the connecting rod. The structure is simple, reliable and easy to disassemble and install.

[0018] Preferably, as an improvement, the outer shell is T-shaped and reinforced with ribs.

[0019] Beneficial effects: The T-shaped shell can better accommodate the positions of eccentric motion component one, eccentric motion component two, and eccentric motion component three, reducing the unnecessary accommodating space of the shell and reducing the material manufacturing cost of the control device; the setting of reinforcing ribs improves the strength and rigidity of the shell, making it less prone to twisting and deformation at the shell connection under the long-term stress of the compensation chain.

[0020] Preferably, as an improvement, the bearing is a radial thrust ball bearing.

[0021] Beneficial effects: Radial thrust ball bearings are not only simple in structure and easy to use, but also have low bearing friction loss. They can also withstand a portion of the unidirectional axial load when subjected to radial load caused by the oscillation of the compensating chain, and have high reliability. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a traction elevator in the prior art;

[0023] Figure 2 This is a front view of a first embodiment of an elevator compensation chain suspension device according to the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of an elevator compensation chain suspension device according to a first embodiment of the present invention;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram;

[0026] Figure 5 for Figure 3 A schematic diagram of the internal structure of the eccentric motion component in its initial state;

[0027] Figure 6 for Figure 3 A schematic diagram of the internal structure of the eccentric motion component when it is in the disengaged state;

[0028] Figure 7 This is a schematic diagram of the internal structure of a second embodiment of an elevator compensation chain suspension device according to the present invention. Detailed Implementation

[0029] The following detailed description illustrates the specific implementation method:

[0030] The reference numerals in the accompanying drawings include:

[0031] Traction elevator 1, car 11, counterweight 12, U-shaped fixing ring 13, compensating chain 14, guide wheel 15, traction sheave 16, wire rope 17, C-shaped base 2, side groove 21, suspension components 3, outer shell 31, rotating handle 32, large gear 33, rotating shaft 331, reinforcing rib 34, eccentric motion component one 35, eccentric motion component two 36, eccentric gear 351, moving block 352, slide rail 353, sliding groove 354, fixing block 355, return spring 356, eccentric motion component three 37, Y-shaped baffle 38, compensating component 4, bearing seat 41, bolt 42, bearing 43, connecting rod 44, connecting plate 45.

[0032] like Figure 1 As shown, a traction elevator 1 in the prior art includes a car 11 for carrying passengers or goods, a counterweight 12 for traction of the car 11, an elevator traction device installed above, and two U-shaped fixing rings 13 installed below the car 11 and the counterweight 12. A compensating chain 14 is attached to the two U-shaped fixing rings 13. The elevator traction device includes a guide wheel 15, a traction sheave 16, and a wire rope 17. This technology discloses an elevator compensating chain suspension device, which facilitates the installation and maintenance of the compensating chain 14, as detailed below:

[0033] Example 1

[0034] Combination Figure 1-4 As shown, an elevator compensation chain suspension device includes a C-shaped base 2 fixed to the bottom of the car 11 and the counterweight 12 by bolts 42, a suspension component 3 inserted between the C-shaped base 2, and a compensation component 4. In this embodiment, the counterweight 12 is used as an example. The slot of the C-shaped base 2 at its bottom faces downward, and the suspension component 3 is located in the slot at the bottom of the C-shaped base 2. Side slots 21 for fixing the suspension component 3 are provided on both sides of the slot.

[0035] The suspension component 3 includes a T-shaped outer shell 31, a coaxially connected rotating handle 32, and a large gear 33. A reinforcing rib 34 is welded at the connection between the vertical and horizontal shells at the bottom of the outer shell 31. The rotating handle 32 is located on the outside of the outer shell 31 for easy operation by the operator. The large gear 33 is located inside the outer shell 31 to avoid external interference. On either side of the large gear 33 are respectively provided eccentric motion components 1 35 and 2 36, which can move in coordination with the large gear 33. The second eccentric motion component 36 is staggered and can be respectively inserted into the two side slots 21 of the C-shaped base 2; specifically, both the first eccentric motion component 35 and the second eccentric motion component 36 include an eccentric gear 351 meshing with the large gear 33, a moving block 352 fixed to the eccentric shaft of the eccentric gear 351, and a slide rail 353 for guiding the moving block 352. The slide rail 353 used by the first eccentric motion component 35 and the second eccentric motion component 36 is the same; taking the first eccentric motion component 35 as an example, combined with Figure 5 As shown, a sliding groove 354 is opened at one end of the movable block 352 near the large gear 33. The rotating shaft 331 installed on the large gear 33 must first pass through the sliding groove 354 before connecting to the large gear 33. The axis of the rotating shaft 331 and the axis of the eccentric shaft on the eccentric gear 351 should be kept on the same horizontal line. A fixed block 355, which also passes through the sliding groove 354, is fixed on the slide rail 353 by bolts 42. A return spring 356 is set between the fixed block 355 and the movable block 352. The movable block 352 and the slide rail 353 are slidably connected. The outer end of the movable block 352 can be inserted into the side groove 21 of the C-shaped base 2. At this time, the eccentric motion component 35 is in the initial state, specifically, the eccentric shaft of the eccentric gear 351 is at the leftmost side of the eccentric gear 351, and the return spring 356 is in the normal state; combined with Figure 6 As shown, when it is necessary to remove the suspension component 3 from the side groove 21 of the C-shaped base 2, the large gear 33 is driven by rotating the handle 32. The large gear 33 then drives the eccentric gear 351 to rotate clockwise around the eccentric shaft fixed on the moving block 352, so as to give the moving block 352 a force to slide to the right, so that the moving block 352 finally disengages from the side groove 21 of the C-shaped base 2. At this time, the eccentric motion component 35 is in the disengaged state, specifically, the eccentric shaft of the eccentric gear 351 is at the rightmost side of the eccentric gear 351, and the return spring 356 is in the stretched state.

[0036] The compensation component 4 includes a bearing seat 41 fixed to the bottom of the housing 31 by bolts 42, a bearing 43 rolled inside the bearing seat 41, and a connecting rod 44 installed inside the bearing 43. In this embodiment, the bearing 43 is a radial thrust ball bearing 43. The connecting rod 44 is fixedly connected to a U-shaped retaining ring 13 for fixing the compensation chain 14. Specifically, the compensation component 4 also includes a connecting plate 45. The two ends of the connecting plate 45 are threaded to the two ends of the U-shaped retaining ring 13 and reinforced with nuts. The middle part of the connecting plate 45 is threaded to the connecting rod 44 and reinforced with nuts.

[0037] Example 2

[0038] like Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that an eccentric motion component 37 and a Y-shaped baffle 38 are fixedly connected at the lower end of the large gear 33, and the bottom of the Y-shaped baffle 38 can cover the bolt 42.

[0039] Specifically, the eccentric motion component 37 adopts the same structure as the eccentric motion component 35 and the eccentric motion component 36, including an eccentric gear, a moving block, a slide rail, a return spring, and a fixed block. The bottom of the moving block in the eccentric motion component 37 is welded to the top of the Y-shaped baffle 38, so that the bottom of the Y-shaped baffle 38 can cover the top of the bolt 42 when the elevator is running, mainly limiting the bolt 42 and effectively preventing it from loosening. When maintenance of the elevator is required, the large gear 33 driven by the handle moves the eccentric gear... As the eccentric motion component 35 and the eccentric motion component 36 disengage from the side groove of the C-shaped base 2, the eccentric motion component 37 also moves in conjunction with the large gear 33 to retract towards the large gear 33, thereby driving the Y-shaped baffle 38 to retract from the position of the cover bolt 42, thus facilitating maintenance by staff. It is worth noting that the return spring on the eccentric motion component 37 is a tension spring, and the Y-shaped baffle is made of lightweight plastic material, so as to ensure that the eccentric gear on the eccentric motion component 37 is always engaged with the large gear 33.

[0040] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An elevator compensation chain suspension device, characterized in that: This includes C-shaped bases fixed to the bottom of the car and counterweight, and suspension and compensation components inserted between the C-shaped bases; The suspension component includes a housing, a coaxially connected rotating handle and a large gear. On both sides of the large gear, there are two eccentric motion components, namely eccentric motion component one and eccentric motion component two, which can cooperate with the large gear. The eccentric motion component one and eccentric motion component two can be inserted into the C-shaped base. Both the eccentric motion assembly one and the eccentric motion assembly two include an eccentric gear, a movable block for mounting on a C-shaped base, an eccentric shaft fixed on the movable block, and a slide rail for guiding the movable block. The movable block and the slide rail are slidably connected. A sliding groove is opened at the end of the movable block near the large gear. The rotating shaft mounted on the large gear must pass through the sliding groove before being connected to the large gear. The axis of the rotating shaft and the axis of the eccentric shaft on the eccentric gear should be kept on the same horizontal line. A fixed block that also passes through the sliding groove is fixed on the slide rail by bolts. A return spring is set between the fixed block and the movable block. The compensation component includes a bearing fixed to the bottom of the housing, a connecting rod installed inside the bearing, and a bearing seat for fixing the bearing. The bearing seat is fixed to the bottom of the housing by bolts, and the connecting rod is fixedly connected to a U-shaped retaining ring for fixing the compensation chain. An eccentric motion component three and a Y-shaped baffle are fixedly connected at the lower end of the large gear. The structure of eccentric motion component three is the same as that of eccentric motion component one and eccentric motion component two. The bottom of the moving block in eccentric motion component three is welded to the top of the Y-shaped baffle, so that the bottom of the Y-shaped baffle can cover the top of the bolt when the elevator equipment is running. When the handle drives the large gear to disengage eccentric motion component one and eccentric motion component two from the side groove of the C-shaped base, eccentric motion component three also moves in coordination with the large gear to retract towards the large gear, thereby driving the Y-shaped baffle to retract and disengage from the position covering the bolt. The bearing is a radial thrust ball bearing.

2. The elevator compensation chain suspension device according to claim 1, characterized in that: The compensation component also includes a connecting plate, the two ends of which are fixed to the two ends of the U-shaped fixing ring, and the middle part of the connecting plate is fixed to the connecting rod.

3. The elevator compensation chain suspension device according to claim 2, characterized in that: The outer shell is T-shaped and has reinforcing ribs.

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