Guide shoe with smoothness of lift car and speed detection function

Abstract

The application discloses a guide shoe with the functions of improving the stability of a lift car and detecting speed, which comprises a guide shoe base and a lining base, the lining base is installed on the guide shoe base through a fixing part, the lining base is provided with an installation groove, boot linings are respectively installed on the left and right inner side walls of the installation groove, a rolling assembly is installed at the bottom of the installation groove, the boot linings and the rolling assembly are fixed on the lining base through boot lining fixing assemblies, the rolling assembly is in transmission connection with a central threaded rod, and a rotating speed detection box is connected to one end of the central threaded rod. The sliding friction between the guide shoe and the guide rail is optimized to rolling friction, the service life of the guide shoe is prolonged, the installation and maintenance costs are reduced, the stability of the lift car operation is improved, the stability of the action of the safety components is improved, the structure of the guide shoe is optimized, the speed of the lift car is monitored, and the safety of the lift car operation is improved.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and in particular to a guide shoe that improves car stability and has a speed detection function. Background Technology

[0002] Guide shoes are sliding nylon blocks that connect elevator guide rails and the car. They secure the car to the guide rails, allowing it to move only up and down. The guide shoes also have oil cups at the top to reduce friction between the shoe liner and the guide rails. Currently, commercially available sliding guide shoes suffer from short lifespan, high installation and maintenance costs, impact on car stability, and limited functionality, failing to monitor car speed and thus unsuitable for current needs to improve performance and reduce costs. Therefore, a new type of rolling guide shoe needs to be designed to meet these requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a guide shoe that improves the stability of the car and has a speed detection function. It optimizes the sliding friction between the guide shoe and the guide rail into rolling friction, reduces component wear, increases the service life of the guide shoe, reduces installation and maintenance costs, improves the stability of car operation, and enhances the stability of safety component operation.

[0004] This invention is achieved through the following technical solution:

[0005] A guide shoe that improves car stability and has a speed detection function includes a guide shoe seat and a liner; wherein: the liner is installed on the guide shoe seat by a fixing member; the liner has an installation groove; shoe liners are respectively installed on the left and right inner sidewalls of the installation groove; a rolling assembly is installed at the bottom of the installation groove; both the shoe liners and the rolling assembly are fixed on the liner by a shoe liner fixing assembly; the rolling assembly is drivenly connected to a central threaded rod; one end of the central threaded rod is connected to a speed detection box.

[0006] As a further improvement to the technical solution of the present invention, the rolling assembly includes a roller row and threaded hole rollers; the roller row is installed at the bottom of the mounting groove; the threaded hole rollers are detachably assembled on the roller row; and the threaded hole rollers are threadedly connected to the central threaded rod.

[0007] As a further improvement to the technical solution of the present invention, the rolling assembly includes a ball bearing and a threaded roller; the ball bearing is installed at the bottom of the mounting groove; the threaded roller is detachably mounted on the ball bearing; and the threaded roller is threadedly connected to the central threaded rod.

[0008] As a further improvement to the technical solution of the present invention, the boot liner fixing assembly includes a boot liner fixing plate and a boot liner fixing bolt; two of each of the boot liner fixing plate and the boot liner fixing bolt are provided; after the boot liner fixing plate presses against the top of the boot liner and the roller row respectively, it is then fixed to the liner seat by the boot liner fixing bolt.

[0009] As a further improvement to the technical solution of the present invention, the mounting groove is generally U-shaped.

[0010] As a further improvement to the technical solution of the present invention, the boot liner fixing plate is generally U-shaped.

[0011] As a further improvement to the technical solution of the present invention, the fixing component includes a first fixing bracket and a second fixing bracket; the bushing is fixed to the guide shoe seat through the first fixing bracket and the second fixing bracket respectively; one end of the central threaded rod passes through the first fixing bracket, the bushing, and the threaded roller in sequence and then exits from the second fixing bracket; the other end of the central threaded rod is connected to the speed detection box; the central threaded rod is threaded in the middle; the threaded roller is threaded to the middle of the central threaded rod.

[0012] As a further improvement to the technical solution of the present invention, both the first fixed bracket and the second fixed bracket are in the shape of an I-beam.

[0013] As a further improvement to the technical solution of this invention, the following settings are made: the elevator running speed is V1, the running time is t, the radius of the threaded hole roller is R1, and the rotational speed of the threaded hole roller is n.

[0014] Running distance L:

[0015] The outer circumference of the threaded hole roller is D1 = 2π*R1.

[0016] L = V1 * t,

[0017] L=n*t*D1

[0018] Therefore, the vertical running speed of the car is converted into the rotational speed of the threaded roller and the central threaded rod by the formula n=V1 / 2π*R1; the speed detection box monitors the speed of the elevator by detecting the rotational speed of the central threaded rod and outputs the corresponding elevator control signal.

[0019] In summary, the present invention has the following beneficial effects:

[0020] (1) Cost: The sliding friction between the guide shoe and the guide rail is optimized into rolling friction, which reduces component wear, increases the service life of the guide shoe, reduces installation and maintenance costs, improves the smoothness of car operation, and improves the stability of safety component operation.

[0021] (2) Functionally: Through the optimized design of the guide shoe structure, the guide shoe can monitor the speed of the car, thereby improving the safety of the car operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a guide shoe with speed detection function that improves the stability of the car according to Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the guide shoe seat and the bushing in Embodiment 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the rolling component and the central threaded rod in Embodiment 1 of the present invention;

[0025] Figure 4 This is a three-dimensional structural schematic diagram of the boot liner fixing assembly according to Embodiment 1 of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the fastener in Embodiment 1 of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the rolling component in Embodiment 2 of the present invention.

[0028] In the attached diagram: 1-Guide shoe seat; 2-Sleeve seat; 3-Fixed component; 4-Rolling assembly; 5-Shoe liner; 6-Shoe liner fixing assembly; 7-Center threaded rod; 8-Speed ​​detection box; 21-Mounting groove; 31-First fixed bracket; 32-Second fixed bracket; 41-Roller row; 42-Threaded hole roller; 43-Ball row; 61-Shoe liner fixing plate; 62-Shoe liner fixing bolt. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] In this invention, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this invention.

[0033] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail below. The present invention changes the conventional friction method of sliding guide shoes and guide rails used in the market, and realizes the function of monitoring car speed.

[0034] Example 1: As Figures 1 to 5 As shown, a guide shoe that improves car stability and has a speed detection function includes a guide shoe seat 1 and a liner 2. The liner 2 is mounted on the guide shoe seat 1 via a fixing member 3. The liner 2 has an installation groove 21. Shoe liners 5 are respectively installed on the left and right inner sidewalls of the installation groove 21. A rolling assembly 4 is installed at the bottom of the installation groove 21. Both the shoe liners 5 and the rolling assembly 4 are fixed to the liner 2 via shoe liner fixing components 6. The rolling assembly 4 is driven by a central threaded rod 7. One end of the central threaded rod 7 is connected to a speed detection box 8. This invention optimizes the sliding friction between the guide shoe and the guide rail into rolling friction, reducing component wear, increasing the service life of the guide shoe, reducing installation and maintenance costs, improving the stability of car operation, and enhancing the stability of safety component operation. Through the optimized design of the guide shoe structure, the guide shoe can monitor the car speed, improving the safety of car operation.

[0035] Specifically, in this embodiment, the rolling assembly 4 includes a roller row 41 and threaded rollers 42 (with threaded holes at the axial center). The roller row 41 is installed at the bottom of the mounting groove 21. The threaded rollers 42 are detachably mounted on the roller row 41. The threaded rollers 42 are threadedly connected to the central threaded rod 7. It should be noted that, in terms of assembly, the roller row 41 of the guide shoe is mounted tightly against the top surface of the guide rail. When the elevator is running, the rollers of the roller row 41 and the threaded rollers 42 rotate with the elevator due to their close contact with the top surface of the guide rail, converting the vertical speed of the elevator into the rotational speed of the rollers. The threaded rollers 42 are screwed tightly onto the central threaded rod 7, at which point the threaded rollers 42 and the central threaded rod 7 rotate together at the same speed. The speed detection box 8 can detect the speed of the elevator by detecting the rotational speed of the central threaded rod 7 and output corresponding elevator control signals. When the elevator is overspeeding, the speed detection box 8 detects that the elevator's running speed exceeds the allowable range and outputs a signal to control the elevator to decelerate and stop.

[0036] Specifically, in this embodiment, the boot liner fixing assembly 6 includes a boot liner fixing plate 61 and boot liner fixing bolts 62; two boot liner fixing plates 61 and two boot liner fixing bolts 62 are provided; after the boot liner fixing plates 61 press against the tops of the boot liner 5 and the roller row 41 respectively, they are then fixed to the liner seat 2 by the boot liner fixing bolts 62. It should be noted that the boot liner fixing plates 61 are provided at the top and bottom of the liner seat 2, which can prevent external dust and impurities from entering the interior of the liner seat 2, ensuring the normal operation of the safety components and improving the safety of the car operation.

[0037] Specifically, in this embodiment, the mounting groove 21 is U-shaped, which facilitates the installation of the rolling assembly 4 and the boot liner 5, and also facilitates its fit with the guide rail.

[0038] Specifically, in this embodiment, the boot liner fixing plate 61 is U-shaped, which can avoid the guide rail and prevent collisions, further improving the safety of the car operation.

[0039] Specifically, in this embodiment, the fixing member 3 includes a first fixing bracket 31 and a second fixing bracket 32; the bushing 2 is fixed to the guide shoe seat 1 through the first fixing bracket 31 and the second fixing bracket 32 ​​respectively; one end of the central threaded rod 7 passes through the first fixing bracket 31, the bushing 2, and the threaded roller 42 in sequence and then exits from the second fixing bracket 32; the other end of the central threaded rod 7 is connected to the speed detection box 8; the central threaded rod 7 has a thread in the middle; the threaded roller 42 is threadedly connected to the middle of the central threaded rod 7.

[0040] Specifically, in this embodiment, both the first fixed bracket 31 and the second fixed bracket 32 ​​are in the shape of an I-beam.

[0041] Specifically, in this embodiment, the elevator running speed is converted into the rotational speed of the roller and the central threaded rod 7, and the relevant calculations are as follows:

[0042] Taking the descent of the elevator car as an example: During elevator operation, the time and distance the car falls along the guide rail are consistent with the time and distance the rollers roll against the guide rail. Assume: the elevator speed is V1, the running time is t, the radius of the threaded roller 42 is R1, and the rotational speed of the threaded roller 42 is n.

[0043] Running distance L:

[0044] The outer ring circumference of the threaded hole roller 42 is D1 = 2π*R1.

[0045] L = V1 * t,

[0046] L=n*t*D1

[0047] Therefore, the vertical running speed of the car is converted into the rotational speed of the threaded roller 42 and the central threaded rod 7 by the formula n=V1 / 2π*R1; the speed detection box 8 detects the rotational speed of the central threaded rod 7, monitors the speed of the elevator, and outputs the corresponding elevator control signal.

[0048] Example 2: As Figure 6 As shown, specifically in this embodiment, the rolling assembly 4 includes a ball bearing row 43 and threaded rollers 42. The ball bearing row 43 is installed at the bottom of the mounting groove 21. The threaded rollers 42 are detachably mounted on the ball bearing row 43. The threaded rollers 42 are threadedly connected to the central threaded rod 7. It should be noted that the rolling assembly 4 can utilize a roller bearing row 41 and a ball bearing row 43 to achieve the rolling cutter function, and can also be replaced by other components capable of performing the rolling function, not limited to roller bearing row 41 and ball bearing row 43. Furthermore, regarding stability, wear-resistant material can be coated onto the roller surface to increase stability and reduce elevator operating noise.

[0049] In summary, the present invention has the following beneficial effects:

[0050] (1) Cost: The sliding friction between the guide shoe and the guide rail is optimized into rolling friction, which reduces component wear, increases the service life of the guide shoe, reduces installation and maintenance costs, improves the smoothness of car operation, and improves the stability of safety component operation.

[0051] (2) Functionally: Through the optimized design of the guide shoe structure, the guide shoe can monitor the speed of the car, thereby improving the safety of the car operation.

[0052] The technical solutions provided by the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the embodiments above are only for helping to understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A guide shoe for improving car stability and with speed detection function, comprising a guide shoe seat and a liner; characterized in that: The bushing is mounted on the guide shoe seat by a fastener; the bushing has an installation groove; shoe liners are respectively installed on the left and right inner sidewalls of the installation groove; a rolling assembly is installed at the bottom of the installation groove; both the shoe liners and the rolling assembly are fixed on the bushing by a shoe liner fixing assembly; the rolling assembly is drivenly connected to a central threaded rod; one end of the central threaded rod is connected to a speed detection box. The rolling assembly includes a roller row and threaded rollers; the roller row is mounted on the bottom of the mounting groove; the threaded rollers are detachably mounted on the roller row; and the threaded rollers are threadedly connected to the central threaded rod. The boot liner fixing assembly includes a boot liner fixing plate and boot liner fixing bolts; there are two of each of the boot liner fixing plate and boot liner fixing bolts; after the boot liner fixing plate presses against the top of the boot liner and the roller row respectively, it is then fixed to the liner seat by the boot liner fixing bolts; The fastener includes a first fixed bracket and a second fixed bracket; the bushing is fixed to the guide shoe seat by the first fixed bracket and the second fixed bracket respectively; one end of the central threaded rod passes through the first fixed bracket, the bushing, and the threaded roller in sequence and then exits from the second fixed bracket; the other end of the central threaded rod is connected to the speed detection box; the central threaded rod has a thread in the middle; the threaded roller is threaded to the middle of the central threaded rod; Settings: Elevator running speed is V1, running time is t, threaded hole roller radius is R1, threaded hole roller speed is n. Running distance L: The outer circumference of the threaded hole roller is D1 = 2π * R1. L=V1*t, L=n*t*D1 Therefore, the vertical speed of the car is converted into the rotational speed of the threaded roller and the central threaded rod by the formula n=V1 / 2π*R1; the speed detection box monitors the speed of the elevator by detecting the rotational speed of the central threaded rod and outputs the corresponding elevator control signal.

2. The guide shoe with speed detection function for improving car stability according to claim 1, characterized in that: The rolling assembly includes a ball bearing and threaded rollers; the ball bearing is mounted on the bottom of the mounting groove; the threaded rollers are detachably mounted on the ball bearing; and the threaded rollers are threadedly connected to the central threaded rod.

3. The guide shoe with speed detection function for improving car stability according to claim 1, characterized in that: The mounting groove is U-shaped.

4. A guide shoe with speed detection function for improving car stability according to claim 1, characterized in that: The boot liner fixing plate is U-shaped.

5. A guide shoe with speed detection function for improving car stability according to claim 1, characterized in that: Both the first fixed bracket and the second fixed bracket are H-shaped.

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