A self-locking device for a complete set of switchgear assembly workstations

Abstract

The invention discloses a self-locking device for an assembly station of a complete set of switchgear, which relates to the technical field of assembly stations, and comprises a reset spring, a rotating shaft, a rotating shaft sleeve, a rotating shaft bracket, a gear box and a transmission shaft; the rotating shaft is fixedly connected to the transmission shaft, and the transmission shaft is connected to a roller at the end of the station through the gear box; the rotating shaft sleeve is sleeved on the outer side of the rotating shaft, the rotating shaft sleeve is clamped with the rotating shaft, the rotating shaft sleeve is fixed on the rotating shaft bracket, and can move axially along the rotating shaft bracket and the rotating shaft, and the rotating shaft bracket is fixed on the station; the outer ring of the rotating shaft sleeve is provided with a stopping platform, the reset spring is arranged between the gear box and the stopping platform and sleeved on the outer side of the rotating shaft sleeve, the invention avoids the problem caused by the cabinet sliding off when the complete set of switchgear is changed, improves the safety index and transportation efficiency of the assembly station of the complete set of switchgear, and saves costs for the enterprise.

Description

Technical Field

[0001] The invention relates to the technical field of assembly workstations, and in particular to a self-locking device for an assembly workstation of a complete set of switchgear. Background Art

[0002] At present, complete sets of switchgear are mostly transported by roller workstations, which have low cost, high safety, stable operation, and the length of the workstation is easy to adjust. However, the rollers of the workstations are mostly connected by gear chains, with large rolling inertia and strong integrity. In addition, ground subsidence makes the conveyor platform uneven. When the complete set of switchgear cabinets are placed on the inspection workstation, it is not easy to stop in the ideal position. Sometimes they slide to the two ends of the workstation or even slide off the conveyor line. In the least, the cabinet frame is deformed, and in the worst case, the workers are injured and the workstation is damaged, causing the entire workstation to stop for maintenance, resulting in huge waste of manpower and material resources.

[0003] Therefore, it is urgent to provide a new self-locking device for a complete set of switchgear assembly station to solve the above-mentioned problems existing in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a self-locking device for an assembly workstation of a complete set of switchgear to solve the problems existing in the above-mentioned prior art, avoid the problems caused by the cabinet sliding when the complete set of switchgear is changing the workstation, improve the safety index and transportation efficiency of the assembly workstation of the complete set of switchgear, and save costs for the enterprise.

[0005] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a self-locking device for a complete set of switch equipment assembly workstation, comprising a reset spring, a rotating shaft, a rotating shaft sleeve, a rotating shaft bracket, a gear box and a transmission shaft; the rotating shaft is fixedly connected to the transmission shaft, and the transmission shaft is connected to the roller at the end of the workstation through the gear box; the rotating shaft sleeve is sleeved on the outer side of the rotating shaft, the rotating shaft sleeve is clamped with the rotating shaft, the rotating shaft sleeve is fixed on the rotating shaft bracket, and can move axially along the rotating shaft bracket and the rotating shaft, and the rotating shaft bracket is fixed on the workstation; the outer ring of the rotating shaft sleeve is provided with a stopping platform, and the reset spring is provided between the gear box and the stopping platform and sleeved on the outer side of the rotating shaft sleeve.

[0006] Preferably, the work station is a roller work station, and the roller work station includes a plurality of rollers, and the plurality of rollers are connected as a whole by a chain.

[0007] Preferably, one end of the rotating shaft is a dense-tooth end, and the other end is a sparse-tooth end, the dense-tooth end is provided with meshing teeth for connecting with the rotating sleeve, and the sparse-tooth end is provided with snap-fit ​​teeth.

[0008] Preferably, the front end of the rotating sleeve is provided with meshing teeth for meshing with the dense-tooth end of the rotating shaft.

[0009] Preferably, the engaging teeth are used to connect with the docking shaft of the RGV transport trolley, and a T-shaped head is provided at one end of the docking shaft connected to the engaging teeth.

[0010] Preferably, the docking shaft is connected to a motor, a guide rail is provided at the bottom of the docking shaft, and the motor and the guide rail are installed on the RGV transport trolley.

[0011] Preferably, the RGV transport cart is provided with an infrared positioning system for aligning the docking shaft with the sparse-tooth end of the rotating shaft.

[0012] Preferably, the stop platform is clearance-matched with the inner ring of the rotating shaft support.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] 1. The present invention is easy and quick to install, and can effectively prevent the cabinet from sliding off the assembly station of the complete switchgear, thereby improving the overall safety index and transportation efficiency of the station;

[0015] 2. The present invention makes the rollers on the workstation table non-rotatable in the natural state. When the cabinet needs to change the workstation table, the RGV transport trolley that receives the command quickly reaches the command position to determine the rotating axis of the self-locking device. At this time, the T-head axial compression rotating shaft sleeve of the docking shaft of the RGV transport trolley is released from the self-locking, and the T-head cooperates with the sparse tooth end of the rotating shaft to drive the rotating shaft to rotate. The cabinet on the workstation table can be smoothly transported to the RGV transport trolley under the conveyance of the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The overall effect diagram of the switchgear workstation equipped with a self-locking device aligning with the uncompressed rotating sleeve and the partial enlarged diagram of the docking part;

[0018] Figure 2 This is a schematic diagram of the interior of the rotating sleeve with the butt shaft aligned and not compressed (the rotating shaft and the rotating sleeve are meshing with each other);

[0019] Figure 3 A schematic diagram of the teeth of the rotating shaft and the rotating sleeve of the self-locking device;

[0020] Figure 4 The overall effect diagram of the compression rotating sleeve of the switchgear workstation with a self-locking device and the partial enlarged diagram of the docking part;

[0021] Figure 5 This is a schematic diagram of the docking shaft being aligned and the internal part of the rotating sleeve being compressed (the teeth of the rotating shaft and the rotating sleeve have been separated);

[0022] Among them, 1 is a cabinet, 2 is a gear box, 3 is a return spring, 4 is a rotating shaft bracket, 5 is a rotating sleeve, 6 is a rotating shaft, 7 is a docking shaft, 8 is a guide rail, 9 is a motor, 10 is a roller, 11 is a RGV transport trolley, 12 is a transmission shaft, 13 is a meshing tooth, and 14 is a sparse tooth end. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Embodiment 1

[0026] like Figure 1-5 As shown, this embodiment provides a self-locking device for a complete set of switchgear assembly station, which is fastened to the station by bolts and is easy to install and disassemble. An RGV transport trolley 11 can also be provided at the tail end of the station. The self-locking device can prevent the cabinet 1 from sliding off the station and injuring workers due to uneven ground, thereby ensuring the safety of the cabinet 1 and the workers and improving the transportation efficiency of the complete set of switchgear assembly station.

[0027] In this embodiment, the self-locking device includes a reset spring 3, a rotating shaft 6, a rotating sleeve 5, a rotating shaft support 4, a gear box 2 and a transmission shaft 12; the rotating shaft 6 is fixedly connected to the transmission shaft 12, and the transmission shaft 12 is connected to the roller 10 at the end of the work station through the gear box 2; the rotating sleeve 5 is sleeved on the outer side of the rotating shaft 6, the rotating sleeve 5 is clamped with the rotating shaft 6, the rotating sleeve 5 is fixed on the rotating shaft support 4, and can move axially along the rotating shaft support 4 and the rotating shaft 6, but cannot rotate; the rotating shaft support 4 is fixed on the work station; the outer ring of the rotating sleeve 5 is provided with a stop platform, and the reset spring 3 is arranged between the gear box 2 and the stop platform and sleeved on the outer side of the rotating sleeve 5.

[0028] In this embodiment, the work station is a roller work station, and the roller work station includes a plurality of rollers 10, and the plurality of rollers 10 are connected as a whole through a chain.

[0029] In this embodiment, one end of the rotating shaft 6 is a dense-tooth end, and the other end is a sparse-tooth end 14. The dense-tooth end is provided with meshing teeth 13 for connecting with the rotating sleeve 5, and the sparse-tooth end 14 is provided with snap-on teeth; the front end of the rotating sleeve 5 is provided with meshing teeth 13 for meshing with the meshing teeth 13 of the dense-tooth end of the rotating shaft.

[0030] When the cabinet 1 is placed on the workbench table, the cabinet 1 will slide to both ends due to the unevenness of the workbench. In this embodiment, a self-locking device is provided to prevent the roller 10 from rotating, so that the cabinet 1 can be stably placed on the workbench. If the self-locking function of the self-locking device needs to be released, an external force can be used to compress the rotating sleeve 5 in the axial direction. The rotating sleeve 5 can compress the reset spring 3 to move axially so that the internal meshing teeth 13 are separated from the dense tooth end of the rotating shaft 6. At this time, the rotating shaft 6 loses its self-locking function, and the roller 10 on the workbench table can rotate freely; when the external force is released, the reset spring 3 compresses the rotating sleeve 5 to make it mesh with the rotating shaft 6.

[0031] In this embodiment, the engaging teeth are used to connect with the docking shaft 7 of the RGV transport trolley 11, and a T-head is provided at one end of the docking shaft 7 connected to the engaging teeth; the docking shaft 7 is connected to a motor 9, and a guide rail 8 is provided at the bottom of the docking shaft 7, and the motor 9 and the guide rail 8 are installed on the RGV transport trolley 11; the RGV transport trolley 11 is provided with an infrared positioning system for aligning the docking shaft 7 with the sparse tooth end 14 of the rotating shaft.

[0032] If the cabinet 1 needs to be transported to the next workstation, the RGV transport trolley 11 receives the instruction and arrives at the workstation to be transported. The docking shaft 7 is aligned with the sparse tooth end 14 of the rotating shaft through the infrared positioning system. At the same time, a guide rail 8 is installed at the bottom of the docking shaft 7. The T-head of the docking shaft 7 moves axially along the guide rail 8 under the drive of the motor 9, so that the rotating sleeve 5 can be compressed to disengage it from the rotating shaft. At this time, the entire self-locking device is unlocked, and the workstation roller 10 can rotate freely.

[0033] In this embodiment, the docking shaft 7 is equipped with an infrared positioning system, which consists of a transmitting system and a receiving system. The transmitting system includes an infrared transmitter that can emit a laser beam, and the receiving system is composed of a glass photosensitive film and is connected to a light sensor. The transmitting system is installed on the docking shaft 7 and can emit a light beam to irradiate the rotating shaft equipped with the photosensitive film. When the light beam is irradiated on the center of the photosensitive film, the docking shaft 7 is also aligned with the sparse tooth end 14 of the rotating shaft 6. The light sensor receives the light signal and sends a command to the motor 9 of the T-head.

[0034] At the same time, the T-head of the docking shaft 7 of the RGV transport trolley 11 cooperates with the sparsely toothed end 14 of the rotating shaft (specifically, the T-head can be inserted into the gap between the teeth of the sparsely toothed end 14), so that the motor 9 can drive the rotating shaft 6 to rotate through the docking shaft 7, and the rotating shaft 6 drives the work station roller 10 to rotate through the transformation of the transmission shaft 12 and the gear box 2, and then the work station cabinet 1 can be smoothly transported to the RGV transport trolley 11.

[0035] In this embodiment, the stop platform is clearance-matched with the inner ring of the rotating shaft bracket 4, so that the rotating sleeve 5 can move axially in the rotating shaft sleeve bracket; and the height of the stop platform is greater than the diameter of the reset spring 3, so that the compression of the reset spring 3 can be achieved by moving the rotating sleeve 5; and the rotating sleeve 5 is a non-standard circle, and the shape of the through hole in the rotating shaft bracket 4 matches it, which limits the radial rotation of the rotating sleeve 5; in this embodiment, a stop platform is provided to facilitate the self-locking and installation of the self-locking device.

[0036] In summary, the self-locking device of the present invention can prevent the cabinet from sliding off the workbench due to uneven ground, thereby avoiding the cabinet from sliding off the workbench and injuring workers and damaging the cabinet, thereby ensuring the safety of the cabinet and workers. At the same time, the structure is simple and easy to install, disassemble and maintain, thereby improving the transportation efficiency of the assembly workbench of the complete set of switchgear.

[0037] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A self-locking device for a complete set of switchgear assembly station, characterized in that: It includes a reset spring, a rotating shaft, a rotating sleeve, a rotating shaft bracket, a gear box and a transmission shaft; the rotating shaft is fixedly connected to the transmission shaft, and the transmission shaft is connected to the roller at the end of the workbench through the gear box; the rotating sleeve is sleeved on the outer side of the rotating shaft, the rotating sleeve is clamped with the rotating shaft, the rotating sleeve is fixed on the rotating shaft bracket, and can move axially along the rotating shaft bracket and the rotating shaft, but cannot rotate, and the rotating shaft bracket is fixed on the workbench; the outer ring of the rotating sleeve is provided with a stop platform, and the stop platform is clearance-matched with the inner ring of the rotating shaft bracket, and the reset spring is provided between the gear box and the stop platform and sleeved on the outer side of the rotating sleeve; One end of the rotating shaft is a dense-tooth end, and the other end is a sparse-tooth end. The dense-tooth end is provided with meshing teeth for connecting with the rotating sleeve, and the sparse-tooth end is provided with snap-fit ​​teeth. The front end of the rotating sleeve is provided with meshing teeth for meshing with the dense-tooth end of the rotating shaft; the snap-fit ​​teeth are used to connect with the docking shaft of the RGV transport trolley, and one end of the docking shaft connected to the snap-fit ​​teeth is provided with a T-head, the docking shaft is connected with a motor, and a guide rail is provided at the bottom of the docking shaft, and the motor and the guide rail are installed on the RGV transport trolley.

2. The self-locking device for the assembly station of the complete switchgear according to claim 1 is characterized in that: The work station is a roller work station, and the roller work station includes a plurality of rollers, and the plurality of rollers are connected as a whole through a chain.

3. The self-locking device for the assembly station of a complete set of switchgear according to claim 1 is characterized in that: The RGV transport trolley is provided with an infrared positioning system for aligning the docking shaft with the sparse tooth end of the rotating shaft.

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