Turnout switch driving device

Abstract

The utility model relates to a turnout switch driving device. The device comprises a mounting seat assembly arranged on the lower surface of a turnout beam, the mounting seat assembly comprises a supporting plate and a motor mounting seat, the motor mounting seat is arranged on the supporting plate, and the upper surface of the motor mounting seat is connected with the lower surface of the turnout beam; the gear motor assembly is arranged on the supporting plate of the motor mounting base, and the gear motor assembly can move on the supporting plate in the direction close to or away from the motor mounting base; one end of the elastic assembly is arranged on the motor mounting seat, and the other end of the elastic assembly is arranged on the gear motor assembly; the chain wheel is arranged on an output shaft of the gear motor assembly; the chain is arranged on the ground below the turnout beam; wherein the chain is meshed with the chain wheel. The gear motor assembly is installed in an elastic assembly mode, so that when the length of the turnout beam is affected by the environment temperature, it is guaranteed that the chain wheel and the chain can still be meshed.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of rail transit turnout switching, and particularly relates to a turnout switching driving device. BACKGROUND

[0002] The urban rail transit system represented by the straddle-type monorail transit system and the medium-low speed maglev transit system has strong adaptability to complex terrain, small curve radius of the line, and strong climbing ability, and can be used as the medium and low capacity rail transit form mainly developed by small and medium-sized cities, and can also be used as the perfect supplement of the large city traffic system. With the advantages of low construction cost, short cycle, and small occupation, it has broad development prospects in China.

[0003] The turnout is one of the key technologies of the monorail transit system and the medium-low speed maglev transit system, and its function is to realize the line switching, the turnaround operation of the vehicle in the running process, and the shunting of the vehicle in the base or the parking lot. The driving device for realizing the switching function of the turnout is the core and key of the turnout design.

[0004] In the related art, in a variable cross-section turnout beam and straddle-type monorail turnout having the same with the application number 202011121595.8, the turnout beam driving device is installed at the bottom of the turnout beam body and can provide power input for the variable cross-section monorail turnout switching. Although the turnout beam driving device can realize the switching of the turnout beam, when the length of the turnout beam is deformed due to the influence of the ambient temperature, the position of the turnout beam driving device at the bottom of the turnout beam body does not change, and thus the meshing of the gear and the rack is affected, thereby affecting the switching function and the switching precision of the turnout. When the turnout beam is elongated, the meshing gap of the gear and the rack is too small and even can be squeezed, and when the turnout beam is shortened, the meshing gap is too large and even cannot be meshed. In addition, the motion trajectory of the meshing of the gear and the rack is a curve, and the manufacturing and installation precision of the rack is relatively high. The on-site installation and the later maintenance and maintenance of the rack are difficult and have high cost.

[0005] Therefore, it is necessary to improve one or more problems in the above-mentioned related technical solutions.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and thus can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0007] The purpose of the embodiment of the present application is to provide a turnout switching driving device, and to at least overcome one or more problems caused by the limitations and defects of the related art.

[0008] According to the turnout switching driving device provided by the embodiment of the present application, the following technical effects can be achieved.

[0009] A mounting bracket assembly is disposed on the lower surface of a turnout beam. The mounting bracket assembly includes a support plate and a motor mounting bracket. The motor mounting bracket is disposed on the support plate, and the upper surface of the motor mounting bracket is connected to the lower surface of the turnout beam.

[0010] A geared motor assembly is disposed on a support plate of the motor mounting base, and the geared motor assembly is movable on the support plate in a direction toward or away from the motor mounting base;

[0011] An elastic component has one end disposed on the motor mounting base and the other end disposed on the geared motor assembly; wherein the elastic component is disposed in a direction parallel to the support plate, and when the length of the turnout beam extends, the elastic component can drive the geared motor assembly on the support plate to move away from the motor mounting base; when the length of the turnout beam shortens, the elastic component can drive the geared motor assembly on the support plate to move closer to the motor mounting base;

[0012] A sprocket is mounted on the output shaft of the geared motor assembly;

[0013] A chain is disposed on the ground below the turnout beam; wherein the chain meshes with the sprocket.

[0014] In one embodiment of this application, the mounting bracket assembly further includes:

[0015] Two sets of extension sections are arranged in parallel relative to each other at the end of the support plate away from the motor mounting base; wherein, the extension section is an I-shaped extension section;

[0016] A guide member is provided on the extension section, through which the geared motor assembly moves on the extension section toward or away from the motor mounting base.

[0017] In one embodiment of this application, the guide includes:

[0018] Two card slots, each of which is respectively disposed on the extension section;

[0019] Two guide bars are provided on the lower surface of the geared motor assembly, and each guide bar moves within the corresponding slot.

[0020] In one embodiment of this application, the resilient component includes:

[0021] A base is provided on the motor mounting bracket. Two inverted L-shaped side plates and a connecting column are respectively provided on the base. The connecting column is located between the two inverted L-shaped side plates. The vertical part of the inverted L-shaped side plates is provided on the base.

[0022] The upper cover is located above the base. The lower surface of the upper cover is respectively provided with a first guide post, a second guide post, and a third guide post. The first guide post and the second guide post are located on both sides of the third guide post. The first guide post and the second guide post respectively pass through the horizontal part of their respective inverted L-shaped side plates. The axis of the third guide post is collinear with the axis of the connecting post, and the third guide post and the connecting post do not contact each other.

[0023] A spring, one end of which is mounted on the connecting post and the other end of which is mounted on the third guide post.

[0024] In one embodiment of this application, the resilient component further includes:

[0025] A spring cover is disposed on the third guide post, and the spring cover abuts against the end of the spring disposed on the third guide post; wherein, the third guide post is provided with a first fastener, the first fastener is located above the spring cover, and the first fastener contacts the spring cover.

[0026] In one embodiment of this application, the resilient component further includes:

[0027] A first receiving tube is disposed on the base, and the connecting column is located inside the first receiving tube;

[0028] The second accommodating cylinder is disposed on the lower surface of the upper cover, the third guide post is located inside the second accommodating cylinder, and the inner diameter of the second accommodating cylinder is larger than the outer diameter of the first accommodating cylinder; wherein, the axis of the second accommodating cylinder is collinear with the axis of the first accommodating cylinder.

[0029] In one embodiment of this application, after the first guide post and the second guide post pass through the horizontal portion of their respective inverted L-shaped side plates, a limiting member is provided at the end of the first guide post near the base and at the end of the second guide post near the base.

[0030] In one embodiment of this application, the third guide post extends toward the upper surface of the cover, and a second fastener is provided on the third guide post located on the upper surface of the cover.

[0031] In one embodiment of this application, the number of elastic components is four, and the four elastic components are arranged in parallel directions.

[0032] In one embodiment of this application, the device further includes:

[0033] A chain mounting base is disposed on the ground below the turnout beam. The chain mounting base is arc-shaped, and a chain is disposed on the outer surface of the chain mounting base. The chain meshes with the sprocket.

[0034] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0035] In the embodiments of this application, the above-described device has one end of the elastic component mounted on the motor mounting base and the other end mounted on the geared motor assembly. When the turnout beam lengthens, the elastic component releases its elastic deformation, causing the geared motor assembly to move away from the motor mounting base on the support plate, thus ensuring the engagement of the sprocket and chain. When the turnout beam length shortens, the elastic component compresses and deforms, causing the geared motor assembly to move closer to the motor mounting base on the support plate, again ensuring the engagement of the sprocket and chain. This application uses an elastic component mounting method for the geared motor assembly to ensure that the sprocket and chain can still engage even when the length of the turnout beam is affected by ambient temperature. Furthermore, the turnout beam uses a sprocket and chain drive, which not only meets the requirements of the curved motion trajectory of the drive device but also significantly reduces manufacturing and installation precision, resulting in high technical and economic efficiency. In addition, the elastic component adopts an adjustable elasticity structure, which has advantages such as good stability, low natural frequency, and significant vibration reduction effect, thereby achieving vibration reduction and noise reduction of the turnout beam. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0037] Figure 1 This illustration shows a schematic diagram of the structure of a turnout switching drive device according to an exemplary embodiment of this application;

[0038] Figure 2 This application illustrates a motor mounting bracket assembly in an exemplary embodiment.

[0039] Figure 3 This diagram illustrates the overall structure of the elastic component in an exemplary embodiment of this application.

[0040] Figure 4 A cross-sectional view of the resilient component in an exemplary embodiment of this application is shown;

[0041] Figure 5 This diagram illustrates the structure of the geared motor assembly in an exemplary embodiment of this application.

[0042] Figure 6 This diagram illustrates the structure of the connecting plate in an exemplary embodiment of this application.

[0043] Figure 7This diagram illustrates the structure of the sprocket in an exemplary embodiment of this application.

[0044] Figure 8 This is a schematic diagram of the chain mounting base in an exemplary embodiment of this application.

[0045] In the diagram: 100, Mounting bracket assembly; 110, Support plate; 120, Motor mounting bracket; 130, Extension section; 131, Slot; 200, Turnout beam; 300, Gear motor assembly; 400, Elastic component; 410, Base; 411, First mounting hole; 412, Second mounting hole; 420, Inverted L-shaped side plate; 430, Connecting post; 440, Top cover; 441, First guide post; 442, Second guide post; 443, Third guide post; 450, Spring; 460, Spring cover; 470, First fastener; 480, First receiving cylinder; 490, Second receiving cylinder; 500, Limiting component; 600, Second fastener; 700, Sprocket; 800, Chain mounting bracket; 810, Chain; 820, Reinforcing rib; 900, Connecting plate; 910, Guide strip; 920, Through hole. Detailed Implementation

[0046] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0047] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0048] This example embodiment provides a turnout switching drive device. (See reference...) Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device may include: a mounting base assembly 100, a geared motor assembly 300, an elastic component 400, a sprocket 700, and a chain 810. The mounting base assembly 100 is disposed on the lower surface of the turnout beam 200, and includes a support plate 110 and a motor mounting base 120. The motor mounting base 120 is disposed on the support plate 110, and its upper surface is connected to the lower surface of the turnout beam 200. The geared motor assembly 300 is disposed on the support plate 110 of the motor mounting base 120, and is movable on the support plate 110 towards or away from the motor mounting base 120. The elastic component 400 has one end disposed on the motor mounting base 120 and the other end disposed on the geared motor assembly 300. The elastic component 400 is arranged parallel to the support plate 110. When the length of the turnout beam 200 extends, the elastic component 400 can drive the geared motor assembly 300 to move away from the motor mounting base 120 on the support plate 110. When the length of the turnout beam 200 shortens, the elastic component 400 can drive the geared motor assembly 300 to move closer to the motor mounting base 120 on the support plate 110. The sprocket 700 is arranged on the output shaft of the geared motor assembly 300. The chain 810 is arranged on the ground below the turnout beam 200. The chain 810 meshes with the sprocket 700.

[0049] It is understood that the mounting bracket assembly 100 includes a support plate 110 and a motor mounting bracket 120. The mounting bracket assembly 100 is disposed on the lower surface of the turnout beam 200. Specifically, the motor mounting bracket 120 is disposed on the support plate 110, and the upper surface of the motor mounting bracket 120 is connected to the lower surface of the turnout beam 200.

[0050] Mounting bracket assembly 100 is used to mount geared motor assembly 300. Specifically, geared motor assembly 300 is mounted on tray 110 and is movable toward or away from motor mounting bracket 120.

[0051] The engagement of the sprocket 700 on the lower surface of the geared motor assembly 300 with the chain 810 on the ground enables the turnout beam 200 to switch. However, the turnout beam 200 is affected by ambient temperature, specifically, it shortens when the ambient temperature decreases and elongates when the ambient temperature increases. Therefore, to ensure that the sprocket 700 and chain 810 can still engage after the turnout beam 200 deforms due to ambient temperature, this application designs the geared motor assembly 300 and the mounting base assembly 100 to be connected by an elastic component 400. Specifically, one end of the elastic component 400 is mounted on the motor mounting base 120, and the other end is mounted on the geared motor assembly 300. During on-site installation, the preload of the elastic component 400 is determined based on the length of the turnout beam 200 under the ambient temperature. When the turnout beam 200 elongates, the elastic component 400 releases its elastic deformation, causing the geared motor assembly 300 to move away from the motor mounting base 120 on the support plate 110, thus ensuring the meshing of the sprocket 700 and the chain 810. Conversely, when the turnout beam 200 shortens, the elastic component 400 compresses its elastic deformation, causing the geared motor assembly 300 to move closer to the motor mounting base 120 on the support plate 110, thus ensuring the meshing of the sprocket 700 and the chain 810.

[0052] It should be noted that during on-site installation, the preload of the elastic component 400 is determined based on the length of the turnout beam 200 at the ambient temperature. The specific method for determining the preload of the elastic component 400 is based on the meshing purpose of the sprocket 700 and the chain 810, and is determined during on-site commissioning.

[0053] It should also be noted that it is assumed that the length of the turnout beam 200 under the ambient temperature is its normal length (i.e., the length of the turnout beam 200 is not affected by environmental factors, neither elongating nor shortening). The preload of the elastic component 400 is the amount of compression deformation of the elastic component 400. During on-site installation, the elastic component 400 is subjected to forces during the installation process, resulting in a certain amount of compression deformation. The specific method for determining the amount of compression deformation of the elastic component 400 is based on the purpose of the meshing between the sprocket 700 and the chain 810, and is determined according to on-site debugging.

[0054] It should also be noted that the turnout beam 200 in this application adopts a sprocket 700 and chain 810 drive method, which not only meets the requirements of the curved motion trajectory of the drive device, but also significantly reduces manufacturing and installation precision, resulting in high technical and economic efficiency. The elastic component 400 adopts an adjustable elastic structure, which has the advantages of good stability, low natural frequency, and significant vibration reduction effect, thereby achieving vibration reduction and noise reduction of the turnout beam 200. The turnout switching drive device has a simple structure, low design and manufacturing cost, and good versatility and interchangeability. In addition, by adopting the installation method of the elastic component 400, this application ensures that the sprocket 700 and chain 810 can still mesh when the length of the turnout beam 200 is affected by the ambient temperature, reducing the difficulty and cost of installation, maintenance and repair of the sprocket 700 and chain 810.

[0055] In the embodiments of this application, using the aforementioned device, one end of the elastic component 400 is mounted on the motor mounting base 120, and the other end of the elastic component 400 is mounted on the geared motor assembly 300. When the length of the turnout beam 200 extends, the elastic component 400 releases its elastic deformation, causing the geared motor assembly 300 to move away from the motor mounting base 120 on the support plate 110, thus ensuring the meshing of the sprocket 700 and the chain 810. When the length of the turnout beam 200 shortens, the elastic component 400 compresses and deforms, causing the geared motor assembly 300 to move closer to the motor mounting base 120 on the support plate 110, thus ensuring the meshing of the sprocket 700 and the chain 810. The geared motor assembly 300 of this application uses the installation method of the elastic component 400 to ensure that the sprocket 700 and the chain 810 can still mesh even when the length of the turnout beam 200 is affected by ambient temperature. Moreover, the turnout beam 200 adopts a sprocket 700 and chain 810 drive method, which not only meets the requirements of the curved motion trajectory of the drive device, but also significantly reduces the manufacturing and installation precision, resulting in high technical and economic efficiency. In addition, the elastic component 400 adopts an adjustable elastic structure, which has the advantages of good stability, low natural frequency, and significant vibration reduction effect, thereby achieving vibration reduction and noise reduction of the turnout beam 200.

[0056] Below, we will refer to Figures 1 to 8 The various parts of the turnout drive device described above in this example embodiment will be described in more detail.

[0057] In one embodiment, reference Figure 2 As shown, the mounting bracket assembly 100 also includes:

[0058] Two sets of extension sections 130 are arranged in parallel at the ends of the support plate 110 away from the motor mounting base 120; wherein, the extension section 130 is an I-shaped extension section 130.

[0059] A guide is provided on the extension section 130, through which the geared motor assembly 300 moves on the extension section 130 toward or away from the motor mounting base 120.

[0060] Understandably, mounting the guide on the I-shaped extension 130 can better guide the geared motor assembly 300 to move toward or away from the motor mounting base 120 on the I-shaped extension 130.

[0061] Further reference Figure 2 , Figure 5 and Figure 6 As shown, the guide includes:

[0062] Two card slots 131 are respectively provided on the extension section 130;

[0063] Two guide bars 910 are provided on the lower surface of the geared motor assembly 300, and each guide bar 910 moves within the corresponding slot 131.

[0064] It is understandable that the slot 131 is set on the extension section 130, and two guide bars 910 are provided on the lower surface of the geared motor assembly 300. The guide bars 910 can move along the corresponding slot 131 so that the geared motor assembly 300 can move on the support plate 110 towards or away from the motor mounting base 120.

[0065] It should be noted that the device also includes a connecting plate 900, which is disposed on the lower surface of the geared motor assembly 300. The connecting plate 900 is provided with a through hole 920, and the output shaft of the geared motor assembly 300 passes through the through hole 920 on the connecting plate 900. The inner diameter of the through hole 920 is larger than the outer diameter of the output shaft of the geared motor assembly 300, so that the output shaft of the geared motor assembly 300 is not affected by the through hole 920 during rotation.

[0066] Further reference Figure 5 and Figure 6 As shown, two guide bars 910 are respectively disposed on the connecting plate 900 and located on both sides of the through hole 920.

[0067] In one embodiment, reference Figure 2 , Figure 3 and Figure 4 As shown, the elastic component 400 includes:

[0068] The base 410 is mounted on the motor mounting base 120. Two inverted L-shaped side plates 420 and a connecting post 430 are respectively mounted on the base 410. The connecting post 430 is located between the two inverted L-shaped side plates 420. The vertical part of the inverted L-shaped side plate 420 is mounted on the base 410.

[0069] The upper cover 440 is located above the base 410. The lower surface of the upper cover 440 is provided with a first guide post 441, a second guide post 442 and a third guide post 443. The first guide post 441 and the second guide post 442 are located on both sides of the third guide post 443. The first guide post 441 and the second guide post 442 pass through the horizontal part of their respective inverted L-shaped side plates 420. The axis of the third guide post 443 is collinear with the axis of the connecting post 430, and the third guide post 443 does not contact the connecting post 430.

[0070] Spring 450, one end of which is mounted on connecting post 430, and the other end of which is mounted on third guide post 443.

[0071] Understandably, when the length of the turnout beam 200 elongates due to ambient temperature, the upper cover 440 needs to move away from the base 410, i.e., the spring 450 releases and deforms, causing the geared motor assembly 300 to move up and down the support plate 110 away from the motor mounting base 120. This ensures that the sprocket 700 and chain 810 can still fit together when the length of the turnout beam 200 elongates due to ambient temperature. When the length of the turnout beam 200 shortens due to ambient temperature, the upper cover 440 needs to move closer to the base 410, i.e., the spring 450 compresses and deforms, causing the geared motor assembly 300 to move up and down the support plate 110 closer to the motor mounting base 120. This ensures that the sprocket 700 and chain 810 can still fit together when the length of the turnout beam 200 shortens due to ambient temperature.

[0072] It should be noted that the first guide post 441 and the second guide post 442 are used to guide the upper cover 440 to move relative to the base 410. When the upper cover 440 moves away from the base 410, the third guide post 443 moves away from the base 410 along with the upper cover 440. Since one end of the spring 450 is connected to the connecting post 430 and the other end is connected to the third guide post 443, the spring 450 will release its deformation to allow the geared motor assembly 300 to move up and down the support plate 110 away from the motor mounting base 120. When the upper cover 440 moves closer to the base 410, the third guide post 443 moves closer to the base 410 along with the upper cover 440. Since one end of the spring 450 is connected to the connecting post 430 and the other end is connected to the third guide post 443, the spring 450 will compress and deform to allow the geared motor assembly 300 to move up and down the support plate 110 closer to the motor mounting base 120.

[0073] It should also be noted that the base 410 has a first mounting hole 411 and a second mounting hole 412 on both sides. The first mounting hole 411 is located below the first guide post 441, and the second mounting hole 412 is located below the second guide post 442. The elastic component 400 can be installed onto the mounting base assembly 100 through the first mounting hole 411 and the second mounting hole 412. Specifically, one bolt passes through the first mounting hole 411 on the base 410, and another bolt passes through the second mounting hole 412 on the base 410, thus installing the base 410 onto the motor mounting base 120, thereby enabling the elastic component 400 to be installed onto the mounting base assembly 100.

[0074] Further reference Figure 4 As shown, the elastic component 400 also includes:

[0075] A spring cover 460 is disposed on the third guide post 443, and the spring cover 460 abuts against the end of the spring 450 disposed on the third guide post 443; wherein, the third guide post 443 is provided with a first fastener 470, the first fastener 470 is located above the spring cover 460, and the first fastener 470 contacts the spring cover 460.

[0076] It is understandable that the first fastener 470 acts on the spring cover 460, causing the spring cover 460 to act on the spring 450. Specifically, when the third guide post 443 moves towards the base 410 along with the upper cover 440, the first fastener 470 also moves towards the base 410. At this time, the first fastener 470 compresses the spring cover 460, causing the spring cover 460 to act on the spring 450, thereby compressing and deforming the spring 450, so as to realize the movement of the geared motor assembly 300 up and down on the support plate 110 towards the motor mounting base 120.

[0077] When the third guide post 443 moves away from the base 410 along with the top cover 440, the first fastener 470 also moves away from the base 410, and the spring 450 releases its deformation to allow the geared motor assembly 300 to move away from the motor mounting base 120 on the support plate 110.

[0078] In one embodiment, reference Figure 3 and Figure 4 As shown, the elastic component 400 also includes:

[0079] The first receiving cylinder 480 is disposed on the base 410, and the connecting column 430 is located inside the first receiving cylinder 480;

[0080] The second accommodating cylinder 490 is disposed on the lower surface of the upper cover 440, the third guide post 443 is located inside the second accommodating cylinder 490, and the inner diameter of the second accommodating cylinder 490 is larger than the outer diameter of the first accommodating cylinder 480; wherein, the axis of the second accommodating cylinder 490 is collinear with the axis of the first accommodating cylinder 480.

[0081] Understandably, the first receiving cylinder 480 is used to receive the connecting post 430, which is located inside the first receiving cylinder 480, and the spring 450 is also located inside the first receiving cylinder 480. When the upper cover 440 moves away from or towards the base 410, the second receiving cylinder 490 also moves away from or towards the base 410 along with the upper cover 440.

[0082] In one embodiment, reference Figure 3 and Figure 4 As shown, after the first guide post 441 and the second guide post 442 pass through the horizontal part of their respective inverted L-shaped side plates 420, a limiting member 500 is provided at the end of the first guide post 441 near the base 410 and at the end of the second guide post 442 near the base 410.

[0083] It should be noted that the limiting member 500 on the end of the first guide post 441 is used to limit the maximum movement distance of the first guide post 441 when it moves away from the base 410. The limiting member 500 on the end of the second guide post 442 is used to limit the maximum movement distance of the second guide post 442 when it moves away from the base 410.

[0084] Based on the length of the turnout beam 200 at the ambient temperature, the elastic component 400 is installed onto the mounting base assembly 100. The preload of the elastic component 400 can be determined through on-site adjustments. At this point, there are preset distances between the limiting member 500 on the first guide post 441 and the horizontal portion of the inverted L-shaped side plate 420, and between the limiting member 500 on the second guide post 442 and the horizontal portion of the inverted L-shaped side plate 420. These preset distances represent the maximum distance that the first guide post 441 and the second guide post 442 can travel away from the base 410. The preset distances can be set according to actual conditions, and this application does not impose any restrictions on this.

[0085] In one embodiment, reference Figure 3 and Figure 4 As shown, the third guide post 443 extends toward the upper surface of the upper cover 440, and a second fastener 600 is provided on the third guide post 443 located on the upper surface of the upper cover 440.

[0086] Understandably, the elastic component 400 can be connected to the geared motor assembly 300 via the second fastener 600.

[0087] It should be noted that the first fastener 470, the limiting member 500, and the second fastener 600 are all nuts. Additionally, washers are required during the installation of the first fastener 470, the limiting member 500, and the second fastener 600.

[0088] In one embodiment, the number of elastic components 400 is four, and the four elastic components 400 are arranged in parallel directions.

[0089] It is understandable that the number of elastic components 400 is set to four, with one end of each elastic component 400 set on the motor mounting base 120 and the other end set on the geared motor assembly 300, so that the geared motor assembly 300 can move more stably toward or away from the motor mounting base 120.

[0090] In one embodiment, reference Figure 1 , Figure 7 and Figure 8 As shown, the device also includes:

[0091] The chain mounting base 800 is set on the ground below the turnout beam 200. The chain mounting base 800 is arc-shaped, and a chain 810 is set on the outer side of the chain mounting base 800. The chain 810 meshes with the sprocket 700.

[0092] Understandably, the chain mounting base 800 adopts a welded steel plate structure, and the chain 810 is installed on the outer side of the arc-shaped chain mounting base 800. The chain 810 and the sprocket 700 mesh to enable the turnout beam 200 to switch.

[0093] It should be noted that several reinforcing ribs 820 are also provided on the inner side of the arc-shaped chain mounting base 800 to make the structure of the arc-shaped chain mounting base 800 more stable.

[0094] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0096] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0097] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0098] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0099] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

Claims

1. A turnout switching drive device, characterized in that, include: A mounting bracket assembly is disposed on the lower surface of a turnout beam. The mounting bracket assembly includes a support plate and a motor mounting bracket. The motor mounting bracket is disposed on the support plate, and the upper surface of the motor mounting bracket is connected to the lower surface of the turnout beam. A geared motor assembly is disposed on a support plate of the motor mounting base, and the geared motor assembly is movable on the support plate in a direction toward or away from the motor mounting base; An elastic component has one end disposed on the motor mounting base and the other end disposed on the geared motor assembly; wherein the elastic component is disposed in a direction parallel to the support plate, and when the length of the turnout beam extends, the elastic component can drive the geared motor assembly on the support plate to move away from the motor mounting base; when the length of the turnout beam shortens, the elastic component can drive the geared motor assembly on the support plate to move closer to the motor mounting base; A sprocket is mounted on the output shaft of the geared motor assembly; A chain is disposed on the ground below the turnout beam; wherein the chain meshes with the sprocket.

2. The turnout switching drive device according to claim 1, characterized in that, The mounting bracket assembly also includes: Two sets of extension sections are arranged in parallel relative to each other at the end of the support plate away from the motor mounting base; wherein, the extension section is an I-shaped extension section; A guide member is provided on the extension section, through which the geared motor assembly moves on the extension section toward or away from the motor mounting base.

3. The turnout switching drive device according to claim 2, characterized in that, The guide component includes: Two card slots, each of which is respectively disposed on the extension section; Two guide bars are provided on the lower surface of the geared motor assembly, and each guide bar moves within the corresponding slot.

4. The turnout switching drive device according to claim 3, characterized in that, The elastic component includes: A base is provided on the motor mounting bracket. Two inverted L-shaped side plates and a connecting column are respectively provided on the base. The connecting column is located between the two inverted L-shaped side plates. The vertical part of the inverted L-shaped side plates is provided on the base. The upper cover is located above the base. The lower surface of the upper cover is respectively provided with a first guide post, a second guide post, and a third guide post. The first guide post and the second guide post are located on both sides of the third guide post. The first guide post and the second guide post respectively pass through the horizontal part of their respective inverted L-shaped side plates. The axis of the third guide post is collinear with the axis of the connecting post, and the third guide post and the connecting post do not contact each other. A spring, one end of which is mounted on the connecting post and the other end of which is mounted on the third guide post.

5. The turnout switching drive device according to claim 4, characterized in that, The resilient component also includes: A spring cover is disposed on the third guide post, and the spring cover abuts against the end of the spring disposed on the third guide post; wherein, the third guide post is provided with a first fastener, the first fastener is located above the spring cover, and the first fastener contacts the spring cover.

6. The turnout switching drive device according to claim 4, characterized in that, The resilient component also includes: A first receiving tube is disposed on the base, and the connecting column is located inside the first receiving tube; The second accommodating cylinder is disposed on the lower surface of the upper cover, the third guide post is located inside the second accommodating cylinder, and the inner diameter of the second accommodating cylinder is larger than the outer diameter of the first accommodating cylinder; wherein, the axis of the second accommodating cylinder is collinear with the axis of the first accommodating cylinder.

7. The turnout switching drive device according to claim 4, characterized in that, After the first guide post and the second guide post pass through the horizontal portion of their respective inverted L-shaped side plates, limiting members are provided at the ends of the first guide post near the base and at the ends of the second guide post near the base.

8. The turnout switching drive device according to claim 4, characterized in that, The third guide post extends toward the upper surface of the cover, and a second fastener is provided on the third guide post located on the upper surface of the cover.

9. The turnout switching drive device according to claim 1, characterized in that, The number of elastic components is four, and the four elastic components are arranged in parallel directions.

10. The turnout switching drive device according to claim 1, characterized in that, The device also includes: A chain mounting base is disposed on the ground below the turnout beam. The chain mounting base is arc-shaped, and a chain is disposed on the outer surface of the chain mounting base. The chain meshes with the sprocket.

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