Electric chassis vehicle

Abstract

The utility model discloses an electric chassis truck which comprises a chassis frame, a driving motor, a clutch device, a transmission piece, a driven piece and a lead screw, the driving motor and the lead screw are installed on the chassis frame, a motor shaft is arranged on the driving motor, the transmission piece is arranged on the motor shaft in a rotating mode, the motor shaft is connected with the transmission piece through the clutch device, and the driven piece is installed on the lead screw. The transmission part is matched and connected with the driven part; the clutch device comprises a driving disc installed on the periphery of the motor shaft in a linkage mode, a clutch disc rotationally installed on the periphery of the motor shaft, and a pushing structure used for pushing the clutch disc to move in the direction close to the transmission piece when the driving disc rotates and promoting the clutch disc to be in linkage fit with the transmission piece. And the reset piece is used for driving and pushing the clutch disc to move in the direction away from the transmission piece and promoting the clutch disc to be separated from the transmission piece when the driving disc stops rotating. Manual operation and electric operation do not need a switching handle to conduct gear shifting operation, the overall structure is small and exquisite, and operation is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to an electric chassis vehicle. Background Technology

[0002] With advancements in power equipment manufacturing processes, power supply devices have become increasingly stable. To further enhance the automation level of the power industry, various units within the power supply sector have comprehensively implemented unmanned substation upgrades. In existing switchgear, to facilitate the push-in (pushing from the test position to the working position and locking) and pull-out (pulling out of the working position from the test position and locking) functions of the centrally mounted vacuum circuit breaker, a chassis is typically used to carry the vacuum circuit breaker. The chassis is equipped with wheels that allow it to move forward or backward along tracks within the switchgear.

[0003] For ease of use, current electric chassis vehicles are typically equipped with a manual / automatic hybrid structure, allowing for both manual and electric operation. They generally include a chassis frame, clutch motor, transmission system, and lead screw. In electric operation, the clutch motor drives the lead screw via the transmission system. In manual operation, a lever is used to shift gears using the clutch, which in turn drives the lead screw via a crank handle. However, because the clutch on the clutch motor requires a lever to shift gears when switching between manual and electric modes, it presents a drawback in terms of operational inconvenience. Utility Model Content

[0004] The purpose of this utility model is to provide an electric chassis vehicle. This utility model can be operated manually or electrically without the need for a gear shifting handle. The overall structure is compact and the operation is very convenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric chassis vehicle, including a chassis frame, and further including a drive motor, a clutch device, a transmission component, a driven component, and a lead screw. The drive motor and the lead screw are mounted on the chassis frame. The drive motor has a motor shaft. The transmission component is rotatably mounted on the motor shaft. The motor shaft is connected to the transmission component through the clutch device. The driven component is mounted on the lead screw, and the transmission component and the driven component are connected in a cooperative manner. The clutch device includes a drive disc linked to the outer periphery of the motor shaft, a clutch disc rotatably mounted on the outer periphery of the motor shaft, a pushing structure for pushing the clutch disc toward the direction closer to the transmission component when the drive disc rotates, and causing the clutch disc to engage with the transmission component, and a reset component for driving the clutch disc toward the direction away from the transmission component when the drive disc stops rotating, and causing the clutch disc to separate from the transmission component.

[0006] By adopting the above technical solution, when the motor is rotating, the clutch is engaged, and the transmission components work under the drive of the motor. When the motor stops, the clutch disengages through the action of the reset component, disconnecting the transmission components from the motor shaft and automatically switching to manual mode. Its electric self-clutch output eliminates the need for gear shifting using a lever, offering advantages such as simple and compact structure and convenient operation.

[0007] The present invention is further configured such that the pushing structure includes a plurality of balls disposed between the drive disc and the clutch disc, and the end face of the drive disc is provided with a plurality of first conical grooves for the balls to be partially embedded, and the end face of the clutch disc is provided with a plurality of second conical grooves for the other part of the balls to be embedded.

[0008] By adopting the above technical solution, the conical groove can provide guidance for the ball bearings. When the drive disc rotates, the ball bearings tend to disengage from the first and second conical grooves, causing the clutch disc to move axially and cooperate with the transmission component. When the drive disc stops rotating, the linkage disc retracts under the action of the reset component, and the ball bearings re-embed into the first and second conical grooves.

[0009] The present invention is further configured such that the reset component includes a spring, the spring is sleeved on the outer periphery of the motor shaft, and the two ends of the spring respectively abut against the transmission component and the clutch disc.

[0010] By adopting the above technical solution and using a spring as the reset component, it has the advantages of simple structure and easy assembly.

[0011] The present invention is further configured such that the clutch disc is provided with a first positioning groove for embedding one end of the spring, and the transmission component is provided with a second positioning groove for embedding the other end of the spring.

[0012] By adopting the above technical solution, the spring can be positioned and installed, improving its stability during installation and movement, preventing deformation that deviates from the central axis, and thus extending its service life.

[0013] The present invention is further configured such that the clutch disc and the transmission component achieve linkage through a structure in which protrusions and grooves cooperate.

[0014] By adopting the above technical solution, the fitting method is simple and reliable, and can achieve circumferential linkage when fitting, making processing very convenient.

[0015] The present invention is further configured to include a damping element for applying frictional force to the clutch disc.

[0016] By adopting the above technical solution, damping is applied to the clutch disc, which ensures that when the drive disc rotates, the clutch disc can be pushed out by the balls, thus avoiding the direct rotation of the balls and clutch disc when the drive disc rotates, which would prevent the clutch disc from axially displacing.

[0017] The present invention is further configured such that the damping component includes a connecting part located in the middle and abutting parts provided at both ends of the connecting part, the drive motor is provided with an adjusting screw, the clutch disc is provided with an annular groove on its outer periphery, the connecting part overlaps with the adjusting screw, and the two abutting parts abut against both ends of the annular groove and apply a preload force to the clutch disc.

[0018] By adopting the above technical solution, the damping component can effectively provide damping for the clutch disc. Its structure is reliable and easy to process and assemble.

[0019] The present invention is further configured such that a bushing is fitted around the outer periphery of the motor shaft, the inner end of the bushing abuts against the outer end of the drive disc, the clutch disc is rotatably mounted on the outer periphery of the bushing, a locking nut is threadedly connected to the outer end of the motor shaft, a washer is sandwiched between the locking nut and the bushing, and an annular limiting groove is provided at one end of the outer circular surface of the bushing near the washer, and an annular limiting flange is provided on the transmission component to cooperate with the annular limiting groove.

[0020] By adopting the above technical solution, the transmission components can be positioned and installed, and the bushing can reduce the wear of the motor shaft and clutch disc, thereby improving the overall service life.

[0021] The present invention is further configured such that the installation direction of the drive motor is parallel to the extension direction of the lead screw.

[0022] By adopting the above technical solution, the external dimensions perpendicular to the extension direction of the lead screw can be reduced, making the overall volume more compact.

[0023] The present invention is further configured such that the transmission member and the driven member are gears, and the transmission member and the driven member are meshed together.

[0024] By adopting the above technical solution and using gear transmission, the effect of driving the motor to drive the lead screw to rotate is achieved. The transmission structure is compact, reliable, and has good stability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the cooperation structure between the drive motor and the clutch device in the first embodiment of this utility model;

[0027] Figure 3 This utility model Figure 2A partial structural sectional view of the structure;

[0028] Figure 4 This utility model Figure 2 Exploded view of the structure;

[0029] Figure 5 This is a schematic diagram of the cooperation structure between the transmission component and the linkage disc in the first embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of the cooperation structure between the drive motor and the clutch device in the first embodiment of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0032] In the diagram: 1. Drive motor; 2. Clutch device; 3. Transmission component; 4. Motor shaft; 5. Drive disc; 6. Clutch disc; 7. Pushing structure; 8. Reset component; 9. Ball bearing; 10. First conical groove; 11. Second conical groove; 12. Spring; 13. First positioning groove; 14. Second positioning groove; 15. Protrusion; 16. Groove; 17. Damping component; 18. Connecting part; 19. Abutting part; 20. Adjusting screw; 21. Annular groove; 22. Bushing; 23. Locking nut; 24. Washer; 25. Annular limiting groove; 26. Annular limiting flange; 27. Chassis frame; 28. Follower; 29. ​​Lead screw. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example: As attached Figures 1-7The electric chassis shown includes a chassis frame 27, a drive motor 1, a clutch device 2, a transmission component 3, a driven component 28, and a lead screw 29. The drive motor 1 and the lead screw 29 are mounted on the chassis frame 27. The drive motor 1 is fixedly mounted on the chassis frame 27, and the lead screw 29 is rotatably mounted on the chassis frame 27. One end of the lead screw 29 has a rectangular operating part for engaging with a groove on a crank handle. In manual operation, cranking the crank handle rotates the lead screw 29. The drive motor 1 has a motor shaft 4, and the transmission component 3 is rotatably mounted on the motor shaft 4. The motor shaft 4 is connected to the transmission component via the clutch device 2. The transmission component 3 is connected to the driven member 28, which is mounted on the lead screw 29 (both rotate synchronously), and the transmission component 3 is connected to the driven member 28. The clutch device 2 includes a drive disc 5 (which can be keyed) linked to the outer periphery of the motor shaft 4, a clutch disc 6 rotatably mounted to the outer periphery of the motor shaft 4, a pusher structure 7 for pushing the clutch disc 6 towards the transmission component 3 when the drive disc 5 rotates, and for causing the clutch disc 6 to engage with the transmission component 3, and a reset member 8 for driving the clutch disc 6 away from the transmission component 3 when the drive disc 5 stops rotating, and for causing the clutch disc 6 to separate from the transmission component 3. This allows the clutch device 2 to engage when the motor is rotating, and the transmission component 3 to work under the motor drive. When the motor stops, the clutch device 2 disengages through the reset member 8, disconnecting the transmission between the transmission component 3 and the motor shaft 4, automatically switching to manual mode, at which point the transmission component 3 is in an idling state. Its electric self-clutch output eliminates the need for gear shifting using a lever, offering advantages such as simple and compact structure and easy operation.

[0035] As attached Figure 3 As shown, the pushing structure 7 includes multiple balls 9 disposed between the drive disk 5 and the clutch disk 6. The drive disk 5 has multiple first conical grooves 10 on its end face for partially embedding the balls 9, and the clutch disk 6 has multiple second conical grooves 11 on its end face for partially embedding the balls 9. The conical grooves provide guidance for the balls 9. When the drive disk 5 rotates, the balls 9 tend to disengage from the first and second conical grooves 10 and 11, causing the clutch disk 6 to axially displace and engage with the transmission component 3. When the drive disk 5 stops rotating, the clutch disk retracts under the action of the reset component 8, and the balls 9 re-embed into the first and second conical grooves 10 and 11.

[0036] As attached Figure 3 As shown, the reset component 8 includes a spring 12, which is sleeved on the outer circumference of the motor shaft 4, and both ends of the spring 12 abut against the transmission component 3 and the clutch disc 6, respectively. Using the spring 12 as the reset component 8 has the advantages of simple structure and easy assembly.

[0037] As attached Figure 3As shown, the clutch disc 6 is provided with a first positioning groove 13 for one end of the spring 12 to be inserted, and the transmission component 3 is provided with a second positioning groove 14 for the other end of the spring 12 to be inserted. This design can position and install the spring 12, improve its stability during installation and movement, prevent it from deforming off the central axis, and thus extend its service life.

[0038] As attached Figure 5 As shown, the clutch disc 6 and the transmission component 3 achieve linkage through the cooperation of protrusions 15 and grooves 16. That is, the clutch disc 6 is provided with multiple protrusions 15, and the transmission component 3 is provided with multiple grooves 16 that cooperate with the protrusions 15. The protrusions 15 and grooves 16 can also be interchanged. This cooperation method is simple and reliable, and can achieve circumferential linkage when engaged, making it very convenient to process.

[0039] As attached Figures 1-4 As shown, the electric chassis also includes a damping component 17 for applying frictional force to the clutch disc 6. Applying damping to the clutch disc 6 ensures that when the drive disc 5 rotates, the clutch disc 6 can be pushed out by the ball bearings 9, avoiding the drive disc 5 from directly driving the ball bearings 9 and the clutch disc 6 to rotate, which would prevent the clutch disc 6 from axially displacing.

[0040] As attached Figures 1-4 As shown, the damping component 17 includes a connecting portion 18 located in the middle and abutment portions 19 at both ends of the connecting portion 18. The drive motor 1 is provided with an adjusting screw 20, and the clutch disc 6 has an annular groove 21 on its outer periphery. The connecting portion 18 overlaps the adjusting screw 20, and the two abutment portions 19 abut against both ends of the annular groove 21 and apply a preload force to the clutch disc 6. The abutment portions 19 can be configured as an arc shape adapted to the curvature of the annular groove 21, and the connecting portion 18 can be C-shaped or U-shaped. This damping component 17 can effectively provide damping for the clutch disc 6, and its structure is reliable, facilitating processing and assembly.

[0041] As attached Figure 3 As shown, a bushing 22 is fitted around the outer circumference of the motor shaft 4. The inner end of the bushing 22 abuts against the outer end of the drive disc 5. The clutch disc 6 is rotatably mounted on the outer circumference of the bushing 22. A locking nut 23 is threadedly connected to the outer end of the motor shaft 4. A washer 24 is sandwiched between the locking nut 23 and the bushing 22. An annular limiting groove 25 is provided on the outer circumference of the bushing 22 near the washer 24. An annular limiting flange 26 is provided on the transmission component 3 to cooperate with the annular limiting groove 25. This design enables the positioning and installation of the transmission component 3, and the bushing 22 can reduce the wear of the motor shaft 4 and the clutch disc 6, thereby improving the overall service life.

[0042] As attached Figure 1As shown, the installation direction of the drive motor 1 is parallel to the extension direction of the lead screw 29, that is, the extension direction of the motor shaft 4 of the drive motor 1 is parallel to the extension direction of the lead screw 29. This design can reduce the external dimensions perpendicular to the extension direction of the lead screw 29, making the overall volume more compact.

[0043] As attached Figure 1 As shown, the transmission component 3 and the driven component 28 are gears, and the transmission component 3 and the driven component 28 are meshed together. The gear transmission method achieves the effect of driving the motor 1 to rotate the lead screw 29. The transmission structure is compact, reliable, and has good stability.

[0044] The transmission component 3 and the driven component 28 can also be driven by a chain or a belt, or a multi-stage transmission structure can be provided, as shown in the attached figure. Figure 6 As shown, the transmission component 3 is the driving sprocket, the driven component 28 is the driven gear, the transmission shaft is rotatably mounted on the chassis frame 27, the transmission gear and the driven sprocket are linkedly mounted on the transmission shaft, the driving sprocket and the driven sprocket are meshed with a chain, and the transmission gear and the driven gear mesh with each other, thereby realizing the kinetic energy transmission from the drive motor 1 to the lead screw 29.

Claims

1. An electrically powered chassis vehicle comprising a chassis frame (27) characterised in that: The drive motor (1), the clutch device (2), the transmission member (3), the driven member (28) and the screw rod (29) are mounted on the chassis frame (27), the motor shaft (4) is arranged on the drive motor (1), the transmission member (3) is rotatably arranged on the motor shaft (4), the motor shaft (4) is connected with the transmission member (3) through the clutch device (2), the driven member (28) is mounted on the screw rod (29), and the transmission member (3) is connected with the driven member (28) in a matched mode.

2. The electric chassis vehicle of claim 1, wherein: The clutch device (2) comprises a driving disc (5) which is connected with the motor shaft (4) in a linked mode, a clutch disc (6) which is rotatably arranged on the motor shaft (4), a pushing structure (7) which is used for pushing the clutch disc (6) to move towards the transmission member (3) and enabling the clutch disc (6) to be connected with the transmission member (3) when the driving disc (5) rotates, and a reset member (8) which is used for driving the clutch disc (6) to move away from the transmission member (3) and enabling the clutch disc (6) to be separated from the transmission member (3) when the driving disc (5) stops rotating.

3. The electric chassis vehicle of claim 1, wherein: The pushing structure (7) comprises a plurality of balls (9) which are arranged between the driving disc (5) and the clutch disc (6), and a plurality of first tapered grooves (10) are arranged on the end surface of the driving disc (5) and used for partially embedding the balls (9), and a plurality of second tapered grooves (11) are arranged on the end surface of the clutch disc (6) and used for embedding the other part of the balls (9).

4. The electric chassis vehicle of claim 3, wherein: The reset member (8) comprises a spring (12) which is sleeved on the outer periphery of the motor shaft (4), and the two ends of the spring (12) are respectively abutted with the transmission member (3) and the clutch disc (6).

5. The electric chassis vehicle of claim 1, wherein: The clutch disc (6) is provided with a first positioning groove (13) which is used for embedding one end of the spring (12), and the transmission member (3) is provided with a second positioning groove (14) which is used for embedding the other end of the spring (12).

6. The electric chassis vehicle of claim 1, wherein: The clutch disc (6) and the transmission member (3) are connected in a linked mode through the cooperation of the protrusions (15) and the grooves (16).

7. The electric chassis vehicle of claim 6, wherein: The damping member (17) is further arranged and used for applying friction to the clutch disc (6). The damping member (17) comprises a connecting portion (18) located in the middle and abutting portions (19) arranged at the two ends of the connecting portion (18), the drive motor (1) is provided with an adjusting screw (20), the outer periphery of the clutch disc (6) is provided with an annular groove (21), the connecting portion (18) is overlapped on the adjusting screw (20), the two abutting portions (19) are abutted at the two ends of the annular groove (21) and apply a pre-tightening force to the clutch disc (6).

8. The electric chassis vehicle of claim 1, wherein: The motor shaft (4) is peripherally sleeved with a shaft sleeve (22), the inner end of the shaft sleeve (22) is abutted with the outer end of the driving disc (5), the clutch disc (6) is rotationally arranged on the periphery of the shaft sleeve (22), the outer end of the motor shaft (4) is threadedly connected with a locking nut (23), the locking nut (23) and the shaft sleeve (22) are clamped with a gasket (24) therebetween, and the outer circular surface of the shaft sleeve (22) is provided with an annular limiting groove (25) at one end close to the gasket (24), and the transmission member (3) is provided with an annular limiting flange (26) matched with the annular limiting groove (25).

9. The electric chassis vehicle of claim 1, wherein: The installation direction of the driving motor (1) is parallel to the extension direction of the lead screw (29).

10. The electric chassis vehicle of claim 1, wherein: The transmission member (3) and the driven member (28) are gears, and the transmission member (3) and the driven member (28) are meshingly connected.

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