Car roof wheel weighing installation structure

Abstract

The utility model discloses a car roof wheel weighing installation structure and belongs to the technical field of lifters. Which comprises a car roof wheel and a pair of upper beams arranged in parallel, and is characterized in that the car roof wheel is rotationally mounted on a pair of car roof wheel mounting plates which are arranged face to face, and the car roof wheel mounting plates are vertically arranged relative to the upper beams; a weighing sensor installation bottom plate is fixedly installed below the pair of car roof wheel installation plates and between the opposite faces of the car roof wheel installation plates, a weighing sensor is installed on the weighing sensor installation bottom plate, and a bearing bottom plate is fixedly installed at the bottoms of the pair of upper beams. And the bearing bottom plate is positioned above the weighing sensor and is connected with the weighing sensor. The system has the advantages that the accuracy and stability of car weighing are improved, and the safety and comfort of passengers taking the elevator are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a car top wheel weighing installation structure. Background Art

[0002] In an elevator, the car is a load-bearing component for transporting passengers or goods. When the passengers or goods in the car are overloaded, it will cause insufficient traction (i.e. insufficient braking force), and serious elevator safety accidents will occur; therefore, a weighing device will be installed on the car to monitor the load of the car in real time. Once overloaded, the control system will be notified to stop the elevator from continuing to run, and the passengers who enter later will be reminded to exit the car in the form of sound and light. Therefore, the car weighing device is one of the important equipment to ensure the safety of elevator operation, which can prevent the elevator from overloading and ensure the safety of passengers and equipment.

[0003] Traditional weighing methods for elevators mainly include wire rope clamping pressure weighing or analog weighing on the rope head. Both installation methods have their own defects. For wire rope clamping pressure weighing, because the tension of different wire ropes is different, it will eventually lead to inaccurate weighing; and for the structure of analog weighing on the rope head, since elevators often use a 2:1 or 4:1 traction ratio structure, the weight measured by the weighing device is the weight of the car divided by the traction ratio. At the same time, the weight deviation of the wire rope, compensation chain, and cable will change, which will affect the accuracy of the weighing device. In short, the measurement accuracy and stability of the car weighing device are related to the safety and comfort of passengers riding the elevator.

[0004] In view of the above-mentioned prior art, it is necessary to reasonably improve the structure of the existing car weighing device. For this reason, the applicant has made a useful design, and the technical solution to be introduced below is produced under this background. Utility Model Content

[0005] The task of the utility model is to provide a car top wheel weighing installation structure, which improves the accuracy and stability of car weighing and ensures the safety and comfort of passengers riding the elevator.

[0006] The task of the utility model is accomplished in this way. A car top wheel weighing installation structure includes a car top wheel and a pair of upper beams arranged in parallel. The characteristics are: the car top wheel is rotatably installed on a pair of car top wheel installation plates arranged face to face with each other, the car top wheel installation plates are vertically arranged relative to the upper beams, a weighing sensor installation base plate is fixedly installed below the pair of car top wheel installation plates and between the opposite surfaces, a weighing sensor is installed on the weighing sensor installation base plate, and a load-bearing base plate is fixedly installed on the bottom of a pair of upper beams, and the load-bearing base plate is located above the weighing sensor and connected to the weighing sensor.

[0007] In a specific embodiment of the utility model, the car top wheel is sleeved on a rotating shaft, and the two ends of the rotating shaft are mounted on a pair of car top wheel mounting plates. A top cover and side guard plates are respectively installed on the top and side of the car top wheel.

[0008] In another specific embodiment of the utility model, a groove is provided on the part where the car top wheel mounting plate cooperates with the upper beams on both sides, and the two upper beams are respectively located in the grooves on both sides of the car top wheel mounting plate. Under normal circumstances, a distance is maintained between the upper and lower edges of the groove and the upper beams.

[0009] In another specific embodiment of the utility model, a car top wheel anti-tilt bracket is fixedly installed between the car top wheel mounting plate and the upper beam, and the car top wheel anti-tilt bracket has a supporting portion and a bracket mounting portion, the supporting portion is abutted against the car top wheel mounting plate, and the bracket mounting portion is fixed to the upper beam by a fastener.

[0010] In another specific embodiment of the present invention, the car top wheel anti-tilt bracket is configured as an integral component extending from one upper beam to another upper beam, and the bracket mounting portion thereon is fixed to a pair of upper beams at the same time.

[0011] In another specific embodiment of the present invention, the bracket mounting portion is a plate with both ends fixed to a pair of upper beams.

[0012] In a further specific embodiment of the present invention, the bracket mounting portion is two mounting foot plates bent and extended from both ends of the abutting portion.

[0013] In a more specific embodiment of the present invention, the weighing sensor mounting base plate has a mounting platform and base plate mounting parts extending from both ends of the mounting platform and respectively fixed to the car top wheel mounting plates on both sides, and the weighing sensor is installed on the mounting platform.

[0014] The utility model adopts the above structure, and has the beneficial effects: the weight of the car and its load is all concentrated on the weighing sensor through the upper beam, and will not be affected by the concentration of the passenger standing position and the load placement position. The weighing compensation of the car top wheel weighing installation structure is used to offset the influence of the compensation chain and the wire rope. At the same time, the car top wheel anti-tilt bracket is used to ensure the stable setting of the car top wheel installation plate in the vertical direction. The above all achieve the effect of improving the weighing accuracy and stability, and ensure the safety and comfort of passengers riding the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of an embodiment of the car top wheel weighing installation structure of the utility model;

[0016] Figure 2It is a three-dimensional diagram of an embodiment of the car top wheel weighing installation structure of the utility model;

[0017] Figure 3 It is a stereoscopic diagram of another embodiment of the car top wheel weighing installation structure described in the utility model.

[0018] In the figure: 1. car top wheel, 11. rotating shaft, 12. top cover, 13. side guard plate; 2. car top wheel mounting plate, 21. groove, 211. upper edge, 212. lower edge; 3. upper beam; 4. car top wheel anti-tilt bracket, 41. abutment part, 42. bracket mounting part; 5. weighing sensor mounting bottom plate, 51. mounting platform, 52. bottom plate mounting part; 6. weighing sensor; 7. load-bearing bottom plate. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0020] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are based on the positions shown in the corresponding drawings, and therefore cannot be understood as a special limitation on the technical solution provided by the utility model.

[0021] See also Figure 1 and Figure 2 The utility model relates to a car top wheel weighing installation structure, comprising a car top wheel 1 and a pair of upper beams 3 arranged in parallel, wherein the upper beams 3 are part of an elevator car frame, and the elevator car frame is used to fix and receive the car. The car top wheel 1 is wound with an elevator wire rope for pulling the car for lifting.

[0022] The car top wheel 1 is rotatably mounted on a pair of car top wheel mounting plates 2 disposed face to face with each other. Specifically, the car top wheel 1 is sleeved on a rotating shaft 11, and both ends of the rotating shaft 11 are mounted on a pair of car top wheel mounting plates 2. A top cover 12 and a side guard plate 13 are respectively mounted on the top and side of the car top wheel 1.

[0023] The car top wheel mounting plate 2 is vertically arranged relative to the upper beam 3. A groove 21 is provided on the matching part of the car top wheel mounting plate 2 and the upper beams 3 on both sides. The two upper beams 3 are respectively located in the grooves 21 on both sides of the car top wheel mounting plate 2. Under normal circumstances, there is a distance between the upper edge 211 and the lower edge 212 of the groove 21 and the upper beam 3.

[0024] In order to prevent the top wheel mounting plate 2 from tipping over, a top wheel anti-tipping bracket 4 is fixedly installed between the top wheel mounting plate 2 and the upper beam 3. Specifically, the top wheel anti-tipping bracket 4 has abutting portion 41 and a bracket mounting portion 42. The abutting portion 41 abuts against the top wheel mounting plate 2, and the bracket mounting portion 42 is fixed to the upper beam 3 by a fastener. The top wheel anti-tipping bracket 4 can be installed one at each upper and lower part of a snap-fit ​​buckle, i.e., a groove 21, and a total of eight top wheel anti-tipping brackets 4 are installed, such as Figure 3 As shown. In order to improve the strength, the car top wheel anti-tilt bracket 4 can also be set as an integral component extending from one upper beam 3 to another upper beam 3, and the bracket mounting portion 42 thereon is fixed to a pair of upper beams 3 at the same time. The bracket mounting portion 42 can be a plate with both ends fixed to a pair of upper beams 3 at the same time, or it can be two mounting foot plates bent and extended from both ends of the abutment portion 41. The latter is preferably used in this embodiment. The car top wheel anti-tilt bracket 4 is fixedly mounted on the upper and lower parts of the upper beam 3.

[0025] like Figure 1 As shown, a weighing sensor mounting base plate 5 is fixedly installed below a pair of the car top wheel mounting plates 2 and between the opposite surfaces. The weighing sensor mounting base plate 5 has a mounting platform 51 and base plate mounting parts 52 extending from both ends of the mounting platform 51 and respectively fixed to the car top wheel mounting plates 2 on both sides. A weighing sensor 6 is installed on the mounting platform 51.

[0026] A load-bearing base plate 7 is fixedly installed at the bottom of a pair of upper beams 3 , and the load-bearing base plate 7 is located above the weighing sensor 6 and connected to the weighing sensor 6 , that is, the weight of the car and its load is applied to the weighing sensor 6 through the upper beams 3 and the load-bearing base plate 7 .

[0027] Please continue reading Figure 1 and Figure 2 The working principle of the car top wheel weighing installation structure described in the utility model is: when leveling, when people or goods enter the car, the car and its load drive the upper beam 3 to move downward due to the increase in gravity, and the downward movement of the upper beam 3 drives the load-bearing bottom plate 7 to press down the weighing sensor 6. The elastic body in the weighing sensor 6 is further pressed downward and deformed. This deformation is converted into an electrical signal and transmitted to the elevator control system. The control system determines whether the car is overweight and outputs corresponding operating instructions.

Claims

1. A car top wheel weighing installation structure, comprising a car top wheel (1), a pair of upper beams (3) arranged in parallel, characterized in that: The car top wheel (1) is rotatably mounted on a pair of car top wheel mounting plates (2) disposed face to face with each other, the car top wheel mounting plates (2) being disposed vertically relative to the upper beam (3), a weighing sensor mounting base plate (5) being fixedly mounted below the pair of car top wheel mounting plates (2) and between the opposite surfaces, a weighing sensor (6) being mounted on the weighing sensor mounting base plate (5), a load-bearing base plate (7) being fixedly mounted at the bottom of the pair of upper beams (3), the load-bearing base plate (7) being located above the weighing sensor (6) and connected to the weighing sensor (6).

2. A car top wheel weighing installation structure according to claim 1, characterized in that: The car top wheel (1) is sleeved on a rotating shaft (11), and the two ends of the rotating shaft (11) are mounted on a pair of car top wheel mounting plates (2). A top cover (12) and a side guard plate (13) are respectively mounted on the top and side of the car top wheel (1).

3. A car top wheel weighing installation structure according to claim 1, characterized in that A groove (21) is provided on the portion where the car top wheel mounting plate (2) matches the upper beams (3) on both sides. The two upper beams (3) are respectively located in the grooves (21) on both sides of the car top wheel mounting plate (2). Under normal circumstances, a spacing is maintained between the upper edge (211) and the lower edge (212) of the groove (21) and the upper beam (3).

4. A car top wheel weighing installation structure according to claim 1, characterized in that A car top wheel anti-tilt bracket (4) is fixedly installed between the car top wheel mounting plate (2) and the upper beam (3), and the car top wheel anti-tilt bracket (4) comprises a supporting portion (41) and a bracket mounting portion (42), the supporting portion (41) is in contact with the car top wheel mounting plate (2), and the bracket mounting portion (42) is fixed to the upper beam (3) via a fastener.

5. A car top wheel weighing installation structure according to claim 4, characterized in that The car top wheel anti-tilt bracket (4) is configured as an integral component extending from one upper beam (3) to another upper beam (3), and the bracket mounting portion (42) thereon is fixed to a pair of upper beams (3) at the same time.

6. A car top wheel weighing installation structure according to claim 5, characterized in that The bracket mounting portion (42) is a plate with both ends fixed to a pair of upper beams (3).

7. A car top wheel weighing installation structure according to claim 6, characterized in that The bracket mounting portion (42) is two mounting foot plates extending from the two ends of the abutting portion (41).

8. A car top wheel weighing installation structure according to claim 1, characterized in that: The weighing sensor mounting base plate (5) comprises a mounting platform (51) and base plate mounting parts (52) extending from both ends of the mounting platform (51) and respectively fixed to the car top wheel mounting plates (2) on both sides; the weighing sensor (6) is mounted on the mounting platform (51).

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