Rail machinery hard limiting mechanism

Abstract

The rail mechanical hard limiting mechanism comprises a fixed shell, an elastic adjusting assembly and a limiting assembly, the fixed shell is arranged at the end of a rail, one end of the limiting assembly is arranged in the fixed shell to be connected with the elastic adjusting assembly, and the other end of the limiting assembly extends out of the fixed shell to be in dynamic contact fit with rail passing equipment. The initial distribution state of the limiting assembly is matched with the rail passing equipment, and the elastic adjusting assembly is configured to be capable of keeping the initial distribution state of the limiting assembly, adjusting the distribution state of the limiting assembly under the action of external force and restoring the limiting assembly to the initial distribution state based on the elastic restoring force of the elastic adjusting assembly. According to the limiting mechanism, the limiting assemblies can effectively limit the rail passing equipment, and when the rail modules are aligned and apply external force to the limiting assemblies, the elastic adjusting assemblies can adjust the distribution state of the limiting assemblies, so that the limiting assemblies do not interfere with the rail modules, alignment of the rail modules is not affected, and the stability and reliability of the limiting mechanism are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tracks, and particularly to a limiting mechanism for tracks. Background Art

[0002] The spliced track system is composed of multiple track modules, which are connected by connecting devices to form a continuous track path. It has flexibility and expandability, and can adjust the length and structural composition of the track according to actual needs. In order to ensure the stable operation of the trolley on the track, a limiting mechanism is usually provided on the track module to prevent safety accidents such as the trolley exceeding the track range or derailing.

[0003] Existing limiting mechanisms usually set fixed baffles at the ends or key positions of the track modules, or set pneumatic-hydraulic system mechanisms and mechanical switch limiting devices to limit the movement of the trolley.

[0004] Chinese Patent Application Publication No. CN 107284469 A discloses a limiting device for a rail vehicle, including a power mechanism, a bracket, a universal joint transmission mechanism, a bearing seat, a limiting arm and a rotating shaft; the power mechanism is fixedly installed on the bracket; the universal joint transmission mechanism is connected to the bracket; the rotating shaft is fixedly connected to the universal joint transmission mechanism; the bearing seat is connected to the rotating shaft; the limiting arm is connected to the rotating shaft, and the limiting arm is driven to rotate through the cooperation of the power mechanism and the universal joint transmission mechanism to limit the movement of the trolley.

[0005] However, the existing limiting mechanisms will limit the smooth movement of the trolley or interfere with the alignment between the track modules, resulting in lower stability and reliability of the track and the trolley.

[0006] Therefore, how to ensure the effective limiting of the limiting mechanism, while not affecting the alignment of the track modules, and improving the stability and reliability of the track and the trolley has become an urgent problem to be solved in this field. Summary of the Invention

[0007] Aiming at the defects of the prior art, the purpose of the present invention is to provide a stable and reliable track mechanical hard limiting mechanism that can effectively limit the trolley while not affecting the alignment of the track modules.

[0008] To achieve the above purpose, the track mechanical hard limiting mechanism provided by the present invention is used to cooperate with the crossing equipment and the track, and includes a fixed housing, an elastic adjustment component and a limiting component.

[0009] The fixed housing is arranged at the end of the track. One end of the limit component is built into the fixed housing to connect the elastic adjustment component, and the other end extends out of the fixed housing to be in dynamic contact and cooperation with the over-track equipment. The initial distribution state of the limit component is adapted to the over-track equipment. The elastic adjustment component is configured to maintain the initial distribution state of the limit component, and can also adjust the distribution state of the limit component under the action of an external force, and restore the limit component to the initial distribution state based on its own elastic restoring force.

[0010] Further, an installation cavity capable of accommodating the elastic connecting piece therein is formed in the fixed housing, and a detachable plug cover is provided at the port of the installation cavity.

[0011] Further, the limit component includes a baffle and a connecting rod. The connecting rod is distributed at an angle, and the first rod section is slidably arranged in the installation cavity. The second rod end extends towards the track and is connected to the baffle. The baffle at least extends to be adapted to the end of the over-track equipment.

[0012] Further, the baffle is composed of a circular baffle.

[0013] Further, the elastic adjustment component includes a rotating shaft, a bearing and an end cover. The bearing is embedded in the fixed housing and corresponds to the installation cavity. The first rod section of the connecting rod passes through the bearing. The rotating shaft and the end cover are sleeved on the first rod section.

[0014] Further, the elastic adjustment component further includes an elastic connecting piece. The elastic connecting pieces are respectively arranged at both ends of the rotating shaft, and one end of the elastic connecting piece is connected to the rotating shaft, and the other end is connected to the inner wall of the installation cavity.

[0015] Further, the elastic connecting piece is distributed corresponding to the initial distribution state of the limit component in the initial state.

[0016] Further, the elastic connecting piece is in a pre-tightened state in the initial state.

[0017] Further, the track includes a first track module and a second track module which are distributed oppositely. The fixed housing is arranged at the opposite end of the first track module and / or the second track module.

[0018] Further, the first track module and the second track module are configured to be capable of relatively moving perpendicular to the length direction of the track.

[0019] The hard limit mechanism for track machinery provided by the present invention can maintain the initial distribution state of the limit components in the initial state, enabling the limit components to effectively limit the equipment passing through the track. When an external force is applied to the limit components during the alignment of the track modules, the elastic adjustment component can adjust the distribution state of the limit components so that the limit components will not interfere with the track modules and will not affect the alignment of the track modules, thereby improving the stability and reliability of the limit mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0021] Figure 1 and Figure 2 is a schematic diagram of the overall structure of the hard limit mechanism for track machinery provided by the present invention;

[0022] Figure 3 is a sectional view of the hard limit mechanism for track machinery provided by the present invention;

[0023] Figure 4 is a schematic diagram of the connection and cooperation between the housing and the track in the present invention;

[0024] Figure 5 and Figure 6 is a schematic diagram of the track alignment in the present invention.

[0025] Reference numerals:

[0026] 101. First limit mechanism; 102. Second limit mechanism;

[0027] 1. Fixed housing; 11. Placement cavity; 12. Plug;

[0028] 2. Elastic adjustment component; 21. Rotating shaft; 22. Bearing; 23. End cover; 24. Fixed screw; 25. Elastic connection member; 251. First end; 252. Second end;

[0029] 3. Limit component; 31. Baffle; 32. Connecting rod; 321. First rod segment; 322. Second rod segment;

[0030] 4. Equipment passing through the track; 5. Track; 51. First track module; 52. Second track module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0032] See Figures 1 to 3 , which shows an example of the hard limit mechanism for track machinery provided by the present invention.

[0033] As can be seen from the figure, the hard limit mechanism of the track machinery in this embodiment mainly includes a fixed housing 1, an elastic adjustment component 2, and a limit component 3, which are used to cooperate with the over-rail equipment 4 and the track 5.

[0034] The fixed housing 1 is arranged at the end of the track 5. One end of the limit component 3 is built into the fixed housing 1 and connected to the elastic adjustment component 2, and the other end extends out of the fixed housing 1 and is in dynamic contact and cooperation with the over-rail equipment 4. The initial distribution state of the limit component 3 is adapted to the over-rail equipment 4. The elastic adjustment component 2 is configured to be able to maintain the initial distribution state of the limit component 3, and can also adjust the distribution state of the limit component 3 under the action of an external force, and restore the limit component 3 to the initial distribution state based on its own elastic restoring force, so that the limit component 3 can effectively limit the over-rail equipment 4. When the track 5 is aligned, the elastic adjustment component 2 can adjust the distribution state of the limit component 3 so that the limit component 3 will not interfere with the track 5 and does not affect the track alignment, thereby improving the stability and reliability of the limit mechanism.

[0035] Combined with Figures 4 to 6 , wherein, the track 5 includes a first track module 51 and a second track module 52 that are relatively distributed along the length direction of the track. The fixed housing 1 is arranged on the relative side ends of the first track module 51 and / or the second track module 52, so that the elastic adjustment component 2 and the limit component 3 can cooperate with the fixed housing 1 to limit the moving range of the over-rail equipment 4 on the first track module 51 and / or the second track module 52, preventing the over-rail equipment 4 from derailing at the side ends of the first track module 51 and / or the second track module 52, and ensuring the moving stability and safety of the over-rail equipment 4.

[0036] Combined with Figure 5 and Figure 6 , further, the first track module 51 and the second track module 52 are configured to be able to move relatively perpendicular to the length direction of the track 5, so that the over-rail equipment 4 can move independently on the first track module 51 and the second track module 52. When the first track module 51 and the second track module 52 move relatively closer perpendicular to the length direction of the track 5, the relative side ends of the first track module 51 and the second track module 52 can be aligned, thereby aligning the track 5 and extending the track length, so that the over-rail equipment 4 can pass on the first track module 51 and the second track module 52.

[0037] Combined with Figures 1 to 3, correspondingly, an installation cavity 11 capable of accommodating the elastic adjustment component 2 is formed in the fixed housing 1, and a detachable plug 12 is provided at the port of the installation cavity 11, so that the elastic adjustment component 2 can be built into the installation cavity 11 and connected and cooperated with the limit component 3. At the same time, the plug 12 seals the elastic adjustment component 2 in the installation cavity 11 to prevent the external environment from affecting the operation of the elastic adjustment component 2. By removing the plug 12, the elastic adjustment component 2 can also be maintained and replaced to ensure the working stability of the elastic adjustment component 2.

[0038] Here, the detachable connection method between the plug 12 and the installation cavity 11 is not limited. For example, magnetic attraction, bolts and other connection structures can be adopted to facilitate the quick disassembly and assembly of the plug 12.

[0039] Combined with Figures 1 to 3 , further, the limit component 3 includes a baffle 31 and a connecting rod 32. The baffle 31 and the connecting rod 32 can cooperate with each other and dynamically contact and cooperate with the over-rail equipment 4 to limit the moving range of the over-rail equipment 4 on the track 5.

[0040] Specifically, the connecting rods 32 are distributed at an angle. Preferably, they are distributed in an L shape. The first rod section 321 of the connecting rod 32 is slidably arranged in the installation cavity 11 of the fixed housing 1 and extends towards the outside of the track 5. The second rod section 322 of the connecting rod 32 is connected to the first rod section 321 and extends towards the cooperation working surface of the track 5 and the over-rail equipment 4, so that when the over-rail equipment 4 moves to the end of the track 5, the second rod section 332 can contact and cooperate with the over-rail equipment 4.

[0041] Further, the second rod section 322 is connected to the baffle 31. Preferably, the baffle 31 is arranged at the side end where the second rod section 332 cooperates with the over-rail equipment 4, and the baffle 31 at least extends to be adapted to the end of the over-rail equipment 4, so that the initial distribution state of the limit component 3 is adapted to the over-rail equipment 4. In this example, the initial distribution state of the limit component 3 is a vertical distribution state.

[0042] Combined with Figure 4 , in this way, when the over-rail equipment 4 moves to the end of the track 5, the baffle 31 can at least abut and cooperate with the end of the over-rail equipment 4 to limit the over-rail equipment 4 and prevent the over-rail equipment 4 from continuously moving beyond the end of the track 5, thereby preventing the over-rail equipment 4 from derailing.

[0043] As a preferred setting scheme, the baffle 31 is composed of a circular baffle to reduce the collision loss caused by the abutment of the surface of the baffle 31 and the over-rail equipment 4. In addition, combined with Figure 5 and Figure 6, when the track 5 is aligned, the first track module 51 and the second track module 52 are relatively close to each other perpendicular to the length direction of the track 5. The circular baffle can ensure that the end of the first track module 51 or the second track module 52 abuts against the smooth side circumference of the baffle 31, reducing stress concentration and preventing collision damage to the baffle 31 and the track module. At the same time, when the first track module 51 and the second track module 52 move and align, they will generate a driving force on the baffle 31, and the circular baffle can ensure the smooth rotation of the baffle 31, improving the reliability and stability of the limit component 3.

[0044] Combined with Figure 5 and Figure 6 , further, when the first track module 51 or the second track module 52 moves relatively close to each other perpendicular to the length direction of the track 5, the first track module 51 or the second track module 52 will abut against the smooth side circumference of the baffle 31, generating a driving force on the baffle 31, causing the baffle 31 to rotate in the direction of the driving force, and driving the second rod segment 332 to rotate synchronously in the direction of the driving force, so that the first rod segment 321 rotates synchronously in the placement cavity 11.

[0045] Since the baffle 31 is a circular baffle, as the first track module 51 or the second track module 52 continues to move relatively, the baffle 31 will always abut against the end of the first track module 51 or the second track module 52, and drive the second rod segment 332 and the first rod segment 321 to rotate continuously. When the track 5 is aligned, the first track module 51 or the second track module 52 will push the baffle 31 and the second rod segment 332 from the vertical distribution state to the horizontal distribution state, without affecting the alignment of the first track module 51 and the second track module 52, and at the same time, it can release the limit on the crossing device 4, enabling the crossing device 4 to move smoothly on the first track module 51 and the second track module 52.

[0046] The thus formed limit component 3 can effectively limit the crossing device 4 without affecting the alignment of the track.

[0047] In order to improve the reliability and stability of the limit component 3, ensure that when the crossing device 4 moves on the track 5, the limit component 3 can always maintain the initial distribution state adapted to the crossing device 4 to effectively limit the crossing device 4. At the same time, when the track 5 is aligned, the limit component 3 will not interfere with the movement of the track module. This limit mechanism further includes an elastic adjustment component 2.

[0048] The elastic adjustment component 2 is configured to maintain the initial distribution state of the limit component 3, and can also adjust the distribution state of the limit component 3 under the action of an external force, and restore the limit component 3 to the initial distribution state based on its own elastic restoring force, thereby ensuring the effective limit of the limit component 3 on the crossing device 4 without affecting the alignment of the track 5.

[0049] Combined withFigures 1 to 3 Specifically, the elastic adjustment component 2 is built into the placement cavity 11 of the fixed housing 1, and includes a rotating shaft 21, a bearing 22 and an end cover 23. The bearing 22 is embedded in the fixed housing 1 and corresponds to the placement cavity 11, so that the first rod segment 321 of the connecting rod 32 can pass through the bearing 22 and be distributed in the placement cavity 11.

[0050] Furthermore, the rotating shaft 21 is sleeved on the first rod segment 321 and fixed by a fixing screw 24. The end cover 23 is sleeved on the first rod segment 321 and fixed to the side end of the placement cavity 11 that cooperates with the first rod segment 321 to ensure the stable connection between the rotating shaft 21 and the first rod segment 321.

[0051] In this way, when the track-crossing device 4 moves to the side end of the track 4 and abuts against the baffle 31, and generates a pushing force facing the outside of the track 5 on the first rod segment 321 and the second rod segment 322, under the combined connection of the end cover 23 with the first rod segment 321 and the placement cavity 11, the first rod segment 321 and the second rod segment 322 will not generate lateral movement, ensuring the effective limit of the track-crossing device 4.

[0052] At the same time, when the track 5 aligns and pushes the baffle 31 to rotate, driving the first rod segment 321 to rotate synchronously in the placement cavity 11, it will drive the rotating shaft 21 to rotate synchronously in the direction of the driving force.

[0053] Combined with Figures 1 to 3 Moreover, the elastic adjustment component 2 further includes an elastic connection member 25. The elastic connection member 25 is built into the placement cavity 11 and is respectively arranged at both ends of the rotating shaft 21. The first end 251 of the elastic connection member 25 is connected to the rotating shaft 21, and the second end 252 is connected to the inner wall of the placement cavity 11, so that the rotating shaft 21 and the elastic connection member 25 are elastically connected and matched.

[0054] Preferably, the elastic connection member 25 is distributed corresponding to the initial distribution state of the limit component 3 in the initial state. That is to say, in this embodiment, the elastic connection member 25 is in a vertical distribution state, and in the initial state, the elastic connection member 25 is in a pre-tightened state, applying pre-tightening forces to the rotating shaft 21 and the placement cavity 11 respectively, so that the rotating shaft 21 can maintain a stable connection with the first rod segment 321 under the action of the pre-tightening force, and drive the second rod segment 322 and the baffle 31 to maintain a stable distribution and are not prone to rotation.

[0055] In this way, in the initial state, the elastic connection member 25 solidifies the limit component 3 and the elastic adjustment component 2 into a rigid whole, which can effectively resist external disturbances, thereby maintaining the initial distribution state of the limit component 3, ensuring that when the track-crossing device 4 moves on the track 5, the limit component 3 can maintain a vertical distribution and is not prone to rotation, and effectively limits the track-crossing device 4.

[0056] Combined with Figure 5 andFigure 6 Meanwhile, when the first track module 51 and the second track module 52 are relatively close to and aligned with the alignment track 5 in the direction perpendicular to the track length, the baffle 31 will be pushed to rotate, driving the first rod segment 321 and the rotating shaft 21 to rotate synchronously in the placement cavity 11. When the rotating shaft 21 rotates synchronously, the first end 251 of the elastic connecting member 25 will be driven to rotate synchronously. The second end 252 of the elastic connecting member 25 is always connected to the inner wall of the placement cavity 11, thereby generating an oblique tensile force on the elastic connecting member 25, causing the elastic connecting member 25 to be obliquely stretched and store elastic force until the first track module 51 and the second track module 52 are aligned.

[0057] At this time, although the elastic connecting member 25 has a tendency to drive the elastic adjustment assembly 2 and the limit assembly 3 to reset synchronously under the action of its own elastic restoring force, due to the abutment of the baffle 31 against the side end of the first track module 51 or the second track module 52, the abutting force cancels out its own elastic restoring force, and the limit assembly 3 cannot return to the initial distribution state, thus ensuring that the limit assembly 3 will not affect the alignment of the track.

[0058] Furthermore, when the first track module 51 and the second track module 52 are relatively far away from each other in the direction perpendicular to the track length and the track is disassembled, the baffle 31 no longer abuts against the side end of the first track module 51 or the second track module 52. At this time, the elastic connecting member 25 moves in the direction opposite to the oblique stretching under the action of its own elastic restoring force, returns to the initial vertical distribution, and drives the rotating shaft 41 to rotate in the direction opposite to the driving force, thereby driving the first rod segment 321, the second rod segment 322 and the baffle 31 to rotate synchronously in the direction opposite to the driving force, and restoring the baffle 31 to the initial vertical distribution state.

[0059] Meanwhile, the self-weights of the baffle 31 and the second rod segment 322 will act on the baffle 31 and the second rod segment 322 synchronously with the elastic restoring force of the elastic connecting member 25, driving the baffle 31 and the second rod segment 322 to quickly reset, so that the limit assembly 3 quickly returns to the initial distribution state and continues to limit the passing equipment 4.

[0060] During this process, the circular geometric center symmetry characteristic of the baffle 31 ensures that the centroid trajectory remains stable during the rotational movement of the baffle 31, can effectively improve the reset accuracy of the limit assembly 3, ensure that the limit assembly 3 still matches the passing equipment 4 after reset, and can effectively limit the position.

[0061] The thus formed elastic adjustment assembly 2 can maintain the initial distribution state of the limit assembly 3, ensure the effective limiting of the passing equipment 4. At the same time, when the track 5 is aligned, it can also adjust the distribution state of the limit assembly 3, will not affect the alignment of the track 5, and quickly resets the limit assembly 3 to the initial distribution state, thereby improving the stability and reliability of this limiting mechanism.

[0062] Combined withFigure 5 Further, this limiting mechanism can be respectively arranged at the opposite side ends of the first track module 51 and the second track module 52, and the first limiting mechanism 101 on the first track module 51 and the second limiting mechanism 102 on the second track module 52 are diagonally offset, so as to ensure that the first limiting mechanism 101 and the second limiting mechanism 102 can respectively limit the track-crossing equipment 4 on the first track module 51 and the second track module 52.

[0063] Meanwhile, when the first track module 51 and the second track module 52 are relatively close to each other in the vertical track length and are about to be aligned, the first limiting mechanism 101 and the second limiting mechanism 102 are offset and respectively abut and cooperate with the second track module 52 and the first track module 51, without causing alignment interference.

[0064] Further, the track 5 includes the splicing track of the building construction machine, the logistics transportation track, etc.

[0065] Correspondingly, the track-crossing equipment 4 includes moving mechanisms such as moving trolleys and logistics transportation frames configured on the track 5.

[0066] In addition, this limiting mechanism can effectively limit the track-crossing equipment 4 and avoid alignment of the tracks through the mechanical connection structure of the fixed housing 1, the elastic adjustment component 2 and the limiting component 3. Compared with the existing limiting mechanisms that use motors, pneumatic and hydraulic system mechanisms, etc., this limiting mechanism has a simple structure, fast response, and can effectively save resources and costs.

[0067] The track mechanical hard limiting mechanism provided by the present invention can maintain the initial distribution state of the limiting component 3 in the initial state, so that the limiting component 3 can effectively limit the track-crossing equipment 4. When an external force is applied to the limiting component during the alignment of the track modules, the elastic adjustment component 2 can adjust the distribution state of the limiting component 3, so that the limiting component 3 will not interfere with the track modules and does not affect the alignment of the track modules, thereby improving the stability and reliability of the limiting mechanism.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A track mechanical hard limit mechanism, used to cooperate with the track crossing equipment and the track, characterized in that: It includes a fixed shell, an elastic adjustment component and a limit component. The fixed shell is arranged at the end of the track, one end of the limit assembly is built into the fixed shell and connected to the elastic adjustment assembly, and the other end extends out of the fixed shell to dynamically contact and cooperate with the track crossing device, the initial distribution state of the limit assembly is adapted to the track crossing device, and the elastic adjustment assembly is configured to maintain the initial distribution state of the limit assembly, and can also adjust the distribution state of the limit assembly under the action of external force, and restore the limit assembly to the initial distribution state based on its own elastic restoring force.

2. The rail machinery hard limit mechanism according to claim 1, characterized in that: A placement cavity capable of accommodating the elastic connector is formed in the fixed shell, and a detachable plugging cover is provided at a port of the placement cavity.

3. The rail machinery hard limit mechanism according to claim 2, characterized in that: The limiting assembly includes a baffle and a connecting rod, the connecting rod is distributed at an angle, and the first rod section is slidably arranged in the placement cavity, the second rod end faces the track and extends to connect the baffle, and the baffle extends at least to adapt to the end of the track crossing device.

4. The rail machinery hard limit mechanism according to claim 3, characterized in that: The baffle is composed of a circular baffle.

5. The rail machinery hard limit mechanism according to claim 3, characterized in that: The elastic adjustment component includes a rotating shaft, a bearing and an end cover. The bearing is embedded in the fixed shell and corresponds to the placement cavity. The first rod section of the connecting rod passes through the bearing. The rotating shaft and the end cover are sleeved on the first rod section.

6. The rail machinery hard limit mechanism according to claim 5, characterized in that: The elastic adjustment component also includes an elastic connecting piece, which is respectively arranged at both ends of the rotating shaft, and one end of the elastic connecting piece is connected to the rotating shaft, and the other end is connected to the inner wall of the placement cavity.

7. The rail machinery hard limit mechanism according to claim 5, characterized in that: The elastic connecting member is distributed in an initial state corresponding to an initial distribution state of the limiting assembly.

8. The rail machinery hard limit mechanism according to claim 7, characterized in that: The elastic connecting member is in a pre-tightened state in an initial state.

9. The rail machinery hard limit mechanism according to claim 1, characterized in that: The track comprises a first track module and a second track module that are relatively distributed, and the fixed housing is arranged at opposite ends of the first track module and / or the second track module.

10. The rail machinery hard limit mechanism according to claim 9, characterized in that: The first track module and the second track module are configured to be relatively movable perpendicular to the length direction of the track.

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