Escalator load simulation device

Abstract

The utility model relates to the technical field of escalator load test, and provides an escalator load simulation device, which comprises a rack, a first chain wheel rotationally arranged on the rack, a second chain wheel rotationally arranged on the rack, a transmission chain wound on the first chain wheel and the second chain wheel, and the first chain wheel drives the second chain wheel to rotate through the transmission chain. The magnetic powder brake is arranged on the rack, and the output end of the magnetic powder brake is synchronously connected with the second chain wheel. By means of the technical scheme, the problems that in the prior art, an escalator load simulation device is large in occupied area and inaccurate in measurement result are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of escalator load testing, in particular to an escalator load simulation device. Background Art

[0002] With the continuous development of society, there are more and more public commercial buildings. As an inclined automatic transportation public transportation tool, the application of escalators is becoming more and more widespread, and even becoming an indispensable means of transportation for people's lives and work. Escalators generally need to be loaded. In the prior art, there are generally two methods. Before the escalator needs to be loaded, a test block is pre-set at the upper or lower end of the step, and then the escalator is started to run from the test block to the other end of the step. The relevant technical parameters are measured during the process, but it is difficult to guarantee the duration of the test. Or organize a sufficient number of people to simulate passengers taking the escalator continuously, so that there is more time to measure the relevant technical parameters. However, these two load test methods have certain uncertainties, which affect the reliability of the confirmation of the full-load operation status of the escalator, and are difficult to operate, and the equipment occupies too much area. Utility Model Content

[0003] The utility model provides an escalator load simulation device, which solves the problems of large occupation of area and inaccurate measurement results of the escalator load simulation device in the related art.

[0004] The technical solution of the utility model is as follows:

[0005] Escalator load simulation device, including

[0006] frame,

[0007] a first sprocket, the first sprocket being rotatably disposed on the frame,

[0008] a second sprocket, the second sprocket being rotatably disposed on the frame,

[0009] a transmission chain, wherein the transmission chain is wound around the first sprocket and the second sprocket, and the first sprocket drives the second sprocket to rotate through the transmission chain,

[0010] A magnetic powder brake, wherein the magnetic powder brake is arranged on the frame, and an output end of the magnetic powder brake is synchronously connected with the second sprocket.

[0011] A transmission shaft, wherein the transmission shaft is rotatably arranged relative to the frame, one end of the transmission shaft is connected to the magnetic powder brake, and the other end is connected to the second sprocket.

[0012] a bearing member, wherein the bearing member is arranged on the transmission shaft,

[0013] A bearing seat, wherein the bearing seat is arranged on the frame, and the bearing member is arranged in the bearing seat,

[0014] The transmission shaft includes

[0015] A first shaft body and a second shaft body, wherein the first shaft body and the second shaft body both include:

[0016] A shaft sleeve, wherein one end of the shaft sleeve has an external threaded portion and the other end has an internal threaded portion, the shaft sleeve has a plurality of through grooves, the through grooves are arranged radially and circumferentially, the external threaded portion of the first shaft body is threadedly connected to the internal threaded portion of the second shaft body, the external threaded portion of the second shaft body is threadedly connected to the magnetic powder brake, and the second sprocket is arranged on the first shaft body,

[0017] A sliding block is slidably arranged in the through groove, the sliding block arranged on the second shaft body abuts against the connecting hole of the second sprocket after sliding, and the sliding block arranged on the first shaft body abuts against the inner hole of the bearing member after sliding.

[0018] As a further technical solution, it also includes

[0019] A rotating driving member is arranged on the frame in a lifting manner, and the rotating driving member drives the first sprocket to rotate.

[0020] As a further technical solution, it also includes

[0021] A connecting shaft, one end of which is arranged on the rotating driving member, and the other end of which is arranged on the first sprocket.

[0022] As a further technical solution, the shaft sleeve has a shaft cavity, and the transmission shaft also includes

[0023] A core shaft, wherein the core shaft is threadedly arranged on the shaft cavity, the core shaft extends out of the shaft sleeve, the core shaft has a guide surface, and the sliding block has a guide portion, and the guide portion is arranged in contact with the guide surface.

[0024] As a further technical solution, the sleeve includes

[0025] The shaft cylinder, the external threaded portion is arranged on the shaft cylinder, the shaft cylinder has a clearance groove and an axial cavity, the axial cavity is communicated with the clearance groove, the core shaft is arranged in the axial cavity of the shaft cylinder and extends into the clearance groove,

[0026] The cover body is threadedly arranged on the shaft cylinder, the cover body has the groove body, the core shaft is threadedly arranged at one end of the groove body and passes through the cover body, and the cover body also has the internal thread part.

[0027] As a further technical solution, the sliding block has a mounting groove, and the mounting groove is used to install a connecting key.

[0028] As a further technical solution, the connecting shaft has the same structure as the first shaft body and the second shaft body.

[0029] As a further technical solution, there are multiple guide parts and guide surfaces, which are matched one by one.

[0030] The working principle and beneficial effects of the utility model are:

[0031] The utility model designs a frame, and the frame serves as a support and installation platform for all parts; a first sprocket structure: a first sprocket is rotatably arranged on the frame, which is the active part of the entire transmission system and is responsible for driving the operation of the transmission chain; a second sprocket structure: another second sprocket is also rotatably arranged on the frame, and is connected with the first sprocket through a transmission chain to form a transmission linkage relationship; a transmission chain system: the transmission chain is wrapped around the first sprocket and the second sprocket, and when the first sprocket rotates, the second sprocket is driven to rotate synchronously through the meshing transmission effect of the chain, so as to simulate the actual operating load condition of the escalator; a magnetic powder brake device: the device is also equipped with a magnetic powder brake, which is fixedly mounted on the frame, and its output end is synchronously connected with the second sprocket. The magnetic powder brake can adjust the braking torque according to demand, simulate the operating status of the escalator under different load conditions, ensure that the actual working conditions are accurately reflected during the test, and conduct comprehensive and accurate load performance detection and evaluation of the escalator's motor drive system, mechanical structure, etc. Compared with the escalator load simulation device in the prior art, the magnetic powder brake can simulate the load changes caused by the number of pedestrians when the escalator is working in real time according to the actual working conditions. The simulation experiment results are more accurate and stable, the overall equipment occupies a smaller area, and it is convenient for the installation and use of the escalator load simulation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0033] Figure 1 It is a schematic diagram of the structure of the utility model;

[0034] Figure 2 It is a structural schematic diagram of the transmission shaft in the utility model;

[0035] Figure 3 It is a structural schematic diagram of the first shaft body in the utility model;

[0036] Figure 4 This is a schematic diagram of the assembly structure of the central shaft and the sliding block of the utility model;

[0037] In the figure: frame 1, first sprocket 2, second sprocket 3, transmission chain 4, magnetic powder brake 5, transmission shaft 6, bearing member 7, bearing seat 8, rotating driving member 9, first shaft body 601, second shaft body 602, sleeve 603, external threaded portion 604, internal threaded portion 605, through groove 606, sliding block 607, core shaft 608, guide surface 609, guide portion 610, shaft cylinder 611, give way groove 612, cover body 613, installation groove 614. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0039] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0040] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] Reference Figure 1~Figure 4, is an embodiment of the utility model, an escalator load simulation device is proposed, including a frame 1, a first sprocket 2 is rotatably arranged on the frame 1, a second sprocket 3 is rotatably arranged on the frame 1, a transmission chain 4 is wound around the first sprocket 2 and the second sprocket 3, the first sprocket 2 drives the second sprocket 3 to rotate through the transmission chain 4, a magnetic powder brake 5 is arranged on the frame 1, and the output end of the magnetic powder brake 5 is synchronously connected with the second sprocket 3.

[0043] The present embodiment designs a frame 1, which serves as a support and installation platform for all parts; a first sprocket 2 structure: a first sprocket 2 is rotatably arranged on the frame 1, which is the active part of the entire transmission system and is responsible for driving the operation of the transmission chain 4; a second sprocket 3 structure: another second sprocket 3 is also rotatably arranged on the frame 1, which is connected to the first sprocket 2 through a transmission chain 4 to form a transmission linkage relationship; a transmission chain 4 system: the transmission chain 4 is wrapped around the first sprocket 2 and the second sprocket 3. When the first sprocket 2 rotates, the second sprocket 3 is driven to rotate synchronously through the meshing transmission of the chain, simulating the actual operating load condition of the escalator; a magnetic powder brake 5 device: the device is also equipped with a magnetic powder brake 5, which is fixedly mounted on the frame 1, and its output end is synchronously connected with the second sprocket 3. The magnetic powder brake 5 can adjust the braking torque according to demand, simulate the operating status of the escalator under different load conditions, ensure that the actual working conditions are accurately reflected during the test, and conduct comprehensive and accurate load performance detection and evaluation of the motor drive system, mechanical structure, etc. of the escalator. Compared with the escalator load simulation device in the prior art, the magnetic powder brake 5 can simulate the load changes caused by the number of pedestrians when the escalator is working in real time according to the actual working conditions. The simulation experiment results are more accurate and stable, the overall equipment occupies a smaller area, and it is convenient for the installation and use of the escalator load simulation device.

[0044] Furthermore, it also includes a transmission shaft 6, which is rotatably arranged relative to the frame 1, one end of the transmission shaft 6 is connected to the magnetic powder brake 5, and the other end is connected to the second sprocket 3, the bearing member 7 is arranged on the transmission shaft 6, the bearing seat 8 is arranged on the frame 1, and the bearing member 7 is arranged in the bearing seat 8.

[0045] In this embodiment, a transmission shaft 6 is designed: the escalator load simulation device is additionally provided with a transmission shaft 6, which is rotatably arranged relative to the frame 1, one end of which is directly connected to the magnetic powder brake 5 to ensure that the power output by the magnetic powder brake 5 can be effectively transmitted to the second sprocket 3 through the transmission shaft 6; the other end is directly connected to the second sprocket 3, thereby realizing accurate power transmission. The design of the transmission shaft 6 can realize the inspection of the transmission shaft 6 used by the escalator load simulation device and the deformation simulation experiment during use; bearing member 7: in order to ensure that the transmission shaft 6 can rotate flexibly and stably, the device is also provided with a bearing member 7 on the transmission shaft 6. A bearing component 7 is installed, which has the characteristics of low friction and high wear resistance, can withstand large loads and maintain stable operation for a long time, further restoring the elevator structure. The design of the bearing component 7 can realize the simulation experiment of the escalator load simulation device on bearing components 7 of different specifications; Bearing seat 8: In order to fix and support the bearing component 7, the device also has a corresponding bearing seat 8 on the frame 1. The bearing component 7 is precisely installed in the bearing seat 8 to form a stable support system to ensure that the transmission shaft 6 will not shake or deviate during rotation, thereby ensuring the stability, reliability and accuracy of the operation of the entire load simulation device.

[0046] Furthermore, it also includes a rotating driving member 9, which is lifted and lowered on the frame 1, and drives the first sprocket 2 to rotate.

[0047] In this embodiment, a rotating driving member 9 is designed in the device, and the driving member is installed on the frame 1 in a lifting manner, so as to further include

[0048] A connecting shaft, one end of which is arranged on the rotating driving member 9 , and the other end of which is arranged on the first sprocket 2 .

[0049] In this embodiment, a connecting shaft is designed, and its design purpose is to indirectly link the rotating drive member 9 with the first sprocket 2. Specifically, one end of the connecting shaft is fixedly arranged on the rotating drive member 9, and the connecting shaft can transmit the power to the other end in real time and accurately through the rotational power output by the rotating drive member 9. The other end of the connecting shaft is closely connected to the first sprocket 2, thereby ensuring that the driving force generated by the rotating drive member 9 can be efficiently and losslessly transmitted to the first sprocket 2, thereby driving the transmission chain 4 and the second sprocket 3 to move, simulating the operation of the escalator under different load conditions. Through this structural design, the escalator load simulation device not only improves the power transmission efficiency, but also enhances the stability of the overall structure, so that the performance parameters and response characteristics of the escalator system can be more realistically and accurately reflected when performing a load simulation test. The design of the connecting shaft facilitates the replacement of the rotating drive member 9, so as to facilitate the detection and simulation experiment of multiple rotating drive members 9 by the escalator load simulation device.

[0050] Further, the transmission shaft 6 includes a first shaft body 601 and a second shaft body 602, and the first shaft body 601 and the second shaft body 602 both include: a sleeve 603, one end of the sleeve 603 has an external threaded portion 604, and the other end has an internal threaded portion 605, the sleeve 603 has a plurality of through grooves 606, the through grooves 606 are radially arranged, and the through grooves 606 are circumferentially arranged, the external threaded portion 604 of the first shaft body 601 is threadedly connected with the internal threaded portion 605 of the second shaft body 602, the external threaded portion 604 of the second shaft body 602 is threadedly connected with the magnetic powder brake 5, the second sprocket 3 is arranged on the first shaft body 601, and the sliding block 607 is slidably arranged in the through groove 606, the sliding block 607 arranged on the second shaft body 602 slides and abuts against the connecting hole of the second sprocket 3, and the sliding block 607 arranged on the first shaft body 601 slides and abuts against the inner hole of the bearing member 7.

[0051] In this embodiment, the transmission shaft 6 is subdivided into a first shaft body 601 and a second shaft body 602, and both shaft bodies have a specific structural design. Design of the sleeve 603: The first shaft body 601 and the second shaft body 602 are each equipped with a sleeve 603, one end of the sleeve 603 has an external threaded portion 604, and the other end has an internal threaded portion 605. A plurality of radial through grooves 606 are designed on the surface of the sleeve 603, and these through grooves 606 are evenly distributed along the circumferential direction of the sleeve 603. The external threaded portion 604 of the first shaft body 601 and the internal threaded portion 605 of the second shaft body 602 are tightly combined together by threaded connection, and the external threaded portion 604 of the second shaft body 602 is threadedly connected to the magnetic powder brake 5 to ensure the reliability of power transmission. The second sprocket 3 is fixed on the first shaft body 601; sliding blocks 607: sliding blocks 607 are designed in the radial through grooves 606 of each sleeve 603, and these sliding blocks 607 can slide freely in the radial direction in the through grooves 606. When the sliding blocks 607 slide in the through grooves 606 on the second shaft body 602, they can abut against the connecting holes of the second sprocket 3, thereby achieving the positioning and fastening of the second sprocket 3 in the axial direction; and after the sliding blocks 607 on the first shaft body 601 slide into place, they will closely abut against the inner hole of the bearing member 7, ensuring the good matching and support between the transmission shaft 6 and the bearing member 7. Through the above design, the transmission shaft 6 of the escalator load simulation device can not only be flexibly assembled and disassembled to adapt to different installation requirements, but also can achieve precise axial positioning through the sliding block 607 structure, ensuring that the transmission shaft 6 can still stably and efficiently transmit power to the second sprocket 3 when the load changes, and simulate various load conditions through the magnetic powder brake 5, so as to achieve accurate simulation and testing of the escalator load performance. Compared with the shaft parts of the prior art, the design of the first shaft body 601 and the second shaft body 602 can realize the rapid disassembly and assembly of the bearing part 7 and the second sprocket 3, which is convenient for the operator's operation and greatly reduces the workload of the operator when the escalator load simulation device establishes a model and collects data.

[0052] Furthermore, the sleeve 603 has an axial cavity, and the transmission shaft 6 also includes a core shaft 608, which is threadedly arranged on the axial cavity and extends out of the sleeve 603. The core shaft 608 has a guide surface 609, and the sliding block 607 has a guide portion 610, which is arranged in contact with the guide surface 609.

[0053] In this embodiment, an axial cavity is designed inside the sleeve 603, and the transmission shaft 6 assembly also includes a mandrel 608. The mandrel 608 is arranged in the axial cavity by a threaded manner, so that a part of it can extend from the inside of the sleeve 603 to the outside of the sleeve 603. The axial core part outside the sleeve 603 is convenient for the operator to adjust the position of the axis; the outer surface of the mandrel 608 is designed with a guide surface 609 for guiding the movement and positioning of the sliding block 607. After adjusting the movement of the axis through the axial core part outside the sleeve 603, the clamping of the sliding block 607 and the connecting hole or the inner hole can be realized. At the same time, the sliding block 607 is also correspondingly provided with a guide portion 610, which is tightly fitted with the guide surface 609 on the mandrel 608 and dynamically abutted. When the sliding block 607 slides in the through groove 606, its guide portion 610 will move accurately along the guide surface 609 of the mandrel 608, thereby ensuring that the sliding block 607 always maintains stable and accurate direction control and positioning during the axial movement. Such a design not only improves the structural stability of the transmission shaft 6 assembly, but also makes the sliding block 607 more accurate and convenient in adjusting the contact position with the second sprocket 3 and the bearing member 7, thereby improving the operating effect and application scope of the escalator load simulation device.

[0054] Furthermore, the sleeve 603 includes a shaft cylinder 611, the external threaded portion 604 is arranged on the shaft cylinder 611, the shaft cylinder 611 has a clearance groove 612 and an axial cavity, the axial cavity is connected to the clearance groove 612, the core shaft 608 is arranged in the axial cavity of the shaft cylinder 611 and extends into the clearance groove 612, the cover body 613 is threadedly arranged on the shaft cylinder 611, the cover body 613 has a groove body, the core shaft 608 is threadedly arranged at one end of the groove body and passes through the cover body 613, and the cover body 613 also has the internal threaded portion 605.

[0055] In this embodiment, a shaft cylinder 611 is designed: an external threaded portion 604 is provided on the shaft cylinder 611 for threaded connection with other components. The shaft cylinder 611 has an axial cavity inside, and the axial cavity is connected to the clearance groove 612 provided on the shaft cylinder 611. The mandrel 608 is installed inside the axial cavity of the shaft cylinder 611, and partially extends into the clearance groove 612. Through threaded matching, the mandrel 608 can adjust its position in the axial direction, and the movement of the sliding block 607 can be controlled by the extended portion; the cover body 613: the cover body 613 can be threadedly installed on the shaft cylinder 611 to form a closed match with the shaft cylinder 611. A groove structure is provided on the cover body 613, one end of the groove body matches the mandrel 608, the mandrel 608 is threadedly installed on this end of the groove body, and the mandrel 608 can completely penetrate the cover body 613, which not only ensures the locking and adjustment function of the mandrel 608 in the axial direction, but also makes the entire sleeve 603 structure more compact and stable. Through such a design, the sleeve 603 can not only realize the stable transmission of power to the drive shaft 6 and the guiding function of the sliding block 607, but also can accurately control the abutment state of the sliding block 607 with the second sprocket 3 and the bearing member 7 through the axial adjustment of the core shaft 608, thereby further improving the operational flexibility and simulation accuracy of the escalator load simulation device.

[0056] Furthermore, the sliding block 607 has a mounting groove 614, and the mounting groove 614 is used to install the connecting key.

[0057] In this embodiment, the sliding block 607 is designed with a mounting groove 614 structure, and the main function of this mounting groove 614 is to install a connecting key. As a common mechanical part, the connecting key is usually used for fixed connection between the shaft and the hub to achieve axial and circumferential positioning and torque transmission. In this escalator load simulation device, after the connecting key is installed in the mounting groove 614 of the sliding block 607, the sliding block 607 can be firmly connected to the second sprocket 3 or other parts that need to be connected through the connecting key, thereby ensuring that the sliding block 607 is further connected to the first shaft body 601 and the second shaft body 602. The structure is the same.

[0058] In this embodiment, the connecting shaft has the same structure as the first shaft body 601 and the second shaft body 602. The same structure as the first shaft body 601 and the second shaft body 602 can realize the quick assembly of the connecting shaft and the first sprocket 2, and can also meet the requirements of the stable connection between the connecting shaft and the rotating drive member 9.

[0059] Furthermore, there are multiple guide portions 610 and guide surfaces 609, which are matched one by one.

[0060] In this embodiment, there are multiple guide parts 610 and guide surfaces 609, and they are matched one by one. This means that each guide part 610 on the sliding block 607 will match and contact with a guide surface 609 on the core shaft 608 to ensure that the sliding block 607 is accurately guided and limited during the axial movement, avoiding the loose fixation caused by the deflection of the sliding block 607, and also avoiding the problems of inaccurate positioning or increased wear of related parts caused by the unstable movement of the sliding block 607. Such a design improves the accuracy and stability of the escalator load simulation device when simulating load changes, ensuring that the abutment state between the sliding block 607 and the second sprocket 3 and the bearing member 7 is always within a controllable range, thereby effectively simulating the operation of the escalator under different load conditions, and providing accurate data support for equipment performance evaluation and optimization.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Escalator load simulation device, characterized in that: include Rack (1), a first sprocket (2), the first sprocket (2) being rotatably arranged on the frame (1), a second sprocket (3), the second sprocket (3) being rotatably arranged on the frame (1), a transmission chain (4), wherein the transmission chain (4) is wound around the first sprocket (2) and the second sprocket (3), and the first sprocket (2) drives the second sprocket (3) to rotate through the transmission chain (4). A magnetic powder brake (5), wherein the magnetic powder brake (5) is arranged on the frame (1), and an output end of the magnetic powder brake (5) is synchronously connected to the second sprocket (3). a transmission shaft (6), the transmission shaft (6) being rotatably arranged relative to the frame (1), one end of the transmission shaft (6) being connected to the magnetic powder brake (5), and the other end of the transmission shaft (6) being connected to the second sprocket (3), a bearing member (7), wherein the bearing member (7) is arranged on the transmission shaft (6), A bearing seat (8), wherein the bearing seat (8) is arranged on the frame (1), and the bearing member (7) is arranged in the bearing seat (8). The transmission shaft (6) comprises A first shaft body (601) and a second shaft body (602), wherein the first shaft body (601) and the second shaft body (602) both comprise: A shaft sleeve (603), wherein one end of the shaft sleeve (603) has an external threaded portion (604) and the other end has an internal threaded portion (605), the shaft sleeve (603) has a plurality of through grooves (606), the through grooves (606) are arranged radially and circumferentially, the external threaded portion (604) of the first shaft body (601) is threadedly connected to the internal threaded portion (605) of the second shaft body (602), the external threaded portion (604) of the second shaft body (602) is threadedly connected to the magnetic powder brake (5), and the second sprocket (3) is arranged on the first shaft body (601). A sliding block (607), wherein the sliding block (607) is slidably arranged in the through groove (606), and the sliding block (607) arranged on the second shaft body (602) abuts against the connecting hole of the second sprocket (3) after sliding, and the sliding block (607) arranged on the first shaft body (601) abuts against the inner hole of the bearing member (7) after sliding.

2. The escalator load simulation device according to claim 1, characterized in that: Also includes A rotating drive member (9), wherein the rotating drive member (9) is arranged on the frame (1) in a lifting manner, and the rotating drive member (9) drives the first sprocket (2) to rotate.

3. The escalator load simulation device according to claim 2, characterized in that: Also includes A connecting shaft, one end of which is arranged on the rotating drive member (9) and the other end of which is arranged on the first sprocket (2).

4. The escalator load simulation device according to claim 3, characterized in that: The shaft sleeve (603) has a shaft cavity, and the transmission shaft (6) also includes A core shaft (608), wherein the core shaft (608) is threadedly arranged on the shaft cavity, the core shaft (608) extends out of the shaft sleeve (603), the core shaft (608) has a guide surface (609), and the sliding block (607) has a guide portion (610), and the guide portion (610) is arranged in contact with the guide surface (609).

5. The escalator load simulation device according to claim 4, characterized in that: The shaft sleeve (603) comprises The shaft cylinder (611) is provided with the external threaded portion (604) on the shaft cylinder (611), the shaft cylinder (611) having a clearance groove (612) and an axial cavity, the axial cavity being in communication with the clearance groove (612), the core shaft (608) being provided in the axial cavity of the shaft cylinder (611) and extending into the clearance groove (612), The cover body (613) is threadedly arranged on the shaft cylinder (611), the cover body (613) has a groove body, the core shaft (608) is threadedly arranged at one end of the groove body and passes through the cover body (613), and the cover body (613) also has the internal threaded portion (605).

6. The escalator load simulation device according to claim 3, characterized in that: The sliding block (607) has a mounting groove (614), and the mounting groove (614) is used to install a connecting key.

7. The escalator load simulation device according to any one of claims 3 to 6, characterized in that: The connecting shaft has the same structure as the first shaft body (601) and the second shaft body (602).

8. The escalator load simulation device according to claim 4, characterized in that: The guide portions (610) and the guide surfaces (609) are both multiple and matched one by one.

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