A connecting shaft emergency release device

Abstract

The present invention discloses an emergency release device for a connecting shaft, which relates to the field of motor test benches, and comprises: a first end, wherein at least one first slot is provided on the outer periphery of the first end; a second end, wherein at least one second slot is provided on the outer periphery of the second end; a separation mechanism, which is arranged between the first end and the second end, and the separation mechanism comprises a movable clamping member, wherein both ends of the clamping member respectively cooperate with the first slot and the second slot; the release device is compressed and released by the clamping member in the separation mechanism, and both ends of the clamping member are quickly separated from the first slot and the second slot, so that the vehicle can be quickly released, thereby saving the progress of the test and subsequent tests.

Description

Technical Field

[0001] The invention belongs to the field of motor stands, and more specifically, relates to an emergency release device for a connecting shaft. Background Art

[0002] At present, the motor test bench and the vehicle are fixed by flange bolts. When the vehicle needs to be taken off the test bench urgently, each fixing bolt of each wheel can only be removed to release the vehicle. When the fixing bolt is broken or stripped and cannot be removed, the subsequent test can only be stopped, the motor test bench is partially disassembled, the broken / stripped bolt is removed, and the reassembled motor test bench is calibrated and other corresponding procedures are carried out, which is time-consuming and labor-intensive, affecting the subsequent test plan. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and to provide an emergency release device for a connecting shaft. The release device is compressed and released through a clamping piece in a separation mechanism, and the two ends of the clamping piece are quickly separated from the first clamping slot and the second clamping slot, so that the vehicle can be quickly released, thereby saving the progress of the test and subsequent tests.

[0004] In order to achieve the above object, the present invention provides a connecting shaft emergency release device, comprising:

[0005] A first end, wherein at least one first slot is formed on the outer periphery of the first end;

[0006] A second end, wherein at least one second slot is formed on the outer periphery of the second end;

[0007] The separation mechanism is arranged between the first end and the second end, and the separation mechanism comprises a movable clamping member, and two ends of the clamping member are respectively matched with the first clamping slot and the second clamping slot.

[0008] Optionally, the separation mechanism further comprises:

[0009] A housing, the housing comprising two annular support plates arranged in parallel, one side of the housing being connected to the motor stand via bracket bolts;

[0010] A connecting ring is arranged between two annular support plates, a plurality of the clamping members are evenly arranged on the outer circumference of the connecting ring, and the clamping members are connected to the outer wall of the connecting ring through a spring assembly;

[0011] A cutting and pressing assembly, which is annular and arranged on the periphery of the clamping member;

[0012] A plurality of driving cylinders are arranged between the two annular support plates, and the driving cylinders can drive the cutting and pressing assembly to move the clamping member toward the center of the circle.

[0013] Optionally, the spring assembly includes a folded spring sheet, the folded spring sheet is V-shaped, and two ends of the folded spring sheet are respectively connected to the clamping member and the connecting ring.

[0014] Optionally, a limiting plate is provided between the folded spring sheet and the clamping member, and two ends of the limiting plate are respectively larger than the outer contours of the first clamping slot and the second clamping slot.

[0015] Optionally, the cutting and pressing assembly includes a plurality of cutting and pressing discs, and an accommodating cavity for accommodating the driving cylinder is formed between adjacent cutting and pressing discs.

[0016] Optionally, the cutting and pressing disc has an arc-shaped structure, and is arranged one-to-one with the driving cylinder. The driving cylinder is connected to the annular support plate, an air inlet is provided at one end of the driving cylinder, and an air outlet is provided at the other end of the driving cylinder and is connected to the cutting and pressing disc.

[0017] Optionally, two sets of the cutting and pressing assemblies are provided, and the driving cylinder of the other set of the cutting and pressing assemblies is centrally arranged on one side of the cutting and pressing disk of one set of the cutting and pressing assemblies.

[0018] Optionally, the first end is disc-shaped, a first bolt hole is circumferentially arranged on one side of the first end, a first annular flange is circumferentially arranged on the other side of the first end, and the first annular flange has a plurality of first slots evenly distributed circumferentially.

[0019] Optionally, the second end is disc-shaped, a second annular flange is circumferentially arranged on one side of the second end, a plurality of second slots are evenly distributed circumferentially on the second annular flange, and a second bolt hole is circumferentially arranged on the other side of the second end.

[0020] Optionally, the first card slot and the second card slot are in a dovetail shape.

[0021] The present invention provides a connecting shaft emergency release device, which has the following beneficial effects:

[0022] 1. The release device drives the cylinder to move the cutting and pressing disc toward the axial direction of the connecting ring, so that the clamping member is separated from the first clamping slot and the second clamping slot, so that the first end and the second end are disconnected, ensuring that the vehicle is quickly disconnected from the motor stand to avoid affecting the subsequent test plan;

[0023] 2. The release device supports and connects the clamping member through a folded spring sheet. Under the elastic action of the folded spring sheet, the two ends of the clamping member are respectively clamped with the first clamping groove and the second clamping groove to ensure that the first end and the second end are axially fixed to achieve the effect of connection transmission;

[0024] 3. The first end of the release device is connected to the load connecting shaft of the motor stand for transmission, wherein the inner shaft of the load connecting shaft is composed of a spline shaft for transmitting the load and fixing the axis, and the outer spline groove of the load connecting shaft is fixed by a spring device lock.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0027] Figure 1 A schematic structural diagram of a motor stand according to an embodiment of the present invention is shown.

[0028] Figure 2 A partial schematic diagram of the structure of a motor stand according to an embodiment of the present invention is shown.

[0029] Figure 3 A schematic structural diagram of a first end according to an embodiment of the present invention is shown.

[0030] Figure 4 A schematic structural diagram of a second end according to an embodiment of the present invention is shown.

[0031] Figure 5 A schematic diagram of the internal structure of a separation mechanism according to an embodiment of the present invention is shown.

[0032] Figure 6 A partial cross-sectional view of a connecting shaft emergency release device according to an embodiment of the present invention is shown.

[0033] Figure 7 A schematic diagram of the external structure of a connecting shaft emergency release device according to an embodiment of the present invention is shown.

[0034] Figure 8 A schematic diagram of the connection structure between a clamping member and a connecting ring according to an embodiment of the present invention is shown.

[0035] Description of reference numerals:

[0036] 1. First end; 2. First slot; 3. Second end; 4. Second slot; 5. Separation mechanism; 6. Connector; 7. Annular support plate; 8. Motor stand; 9. Connecting ring; 10. Cutting and pressing assembly; 11. Driving cylinder; 12. Folding spring sheet; 13. Limiting plate; 14. Cutting and pressing plate; 15. First bolt hole; 16. First annular flange; 17. Second annular flange; 18. Second bolt hole; 19. Load connecting shaft. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0038] The present invention provides a connecting shaft emergency release device, comprising:

[0039] A first end, wherein at least one first slot is formed on the outer periphery of the first end;

[0040] A second end, wherein at least one second slot is formed on the outer periphery of the second end;

[0041] The separation mechanism is arranged between the first end and the second end. The separation mechanism comprises a movable clamping member, and the two ends of the clamping member are respectively matched with the first clamping slot and the second clamping slot.

[0042] Specifically, the release device uses a first end and a second end to be connected to the load connecting shaft of the motor test bench and the wheel of the vehicle respectively, and a separation mechanism is arranged between the first end and the second end. When the separation mechanism is not driven externally, the two ends of the clamping member are connected to the first clamping slot and the second clamping slot respectively. In this way, when the motor test bench is running, power can be transmitted to the wheel through the first end and the second end to ensure the test. When the separation mechanism is driven externally, the two ends of the clamping member are disconnected from the first clamping slot and the second clamping slot. In this way, the transmission force of the motor test bench is no longer transmitted, and the wheel of the vehicle can be quickly released from the motor test bench. When the existing motor test bench is disconnected from the vehicle, it is not necessary to loosen all the fixing bolts of each wheel to release the vehicle. This saves time and effort and does not affect subsequent test plans.

[0043] Optionally, the separation mechanism further comprises:

[0044] The housing comprises two annular support plates arranged in parallel, and one side of the housing is connected to the motor stand through bracket bolts;

[0045] A connecting ring is arranged between the two annular support plates, and a plurality of clamping parts are evenly arranged on the outer circumference of the connecting ring, and the clamping parts are connected to the outer wall of the connecting ring through a spring assembly;

[0046] A cutting and pressing assembly, which is annular and arranged on the outer periphery of the clamping member;

[0047] A plurality of driving cylinders are arranged between the two annular support plates, and the driving cylinders can drive the cutting and pressing assembly to move the clamping part toward the center of the circle.

[0048] Specifically, in addition to the clip, the separation mechanism is also provided with a shell, a connecting ring, a spring assembly, a shearing and pressing assembly and a driving cylinder. The entire separation mechanism is connected to the motor stand through the shell, and the connecting ring supports the clip through the spring assembly. In the normal release state of the spring assembly, the two ends of the clip can be fixed with the slots at both ends. When the driving cylinder transmits driving force to the shear assembly, the shear assembly applies a force to the middle part of the clip to move the clip in the axial direction of the connecting ring. In this way, the clip is disengaged from the slots at both ends, so that the motor stand and the wheel can be quickly separated, and the vehicle can be released from the motor stand in the face of an emergency.

[0049] Optionally, the spring assembly includes a folded spring sheet, which is V-shaped, and two ends of the folded spring sheet are respectively connected to the clamping member and the connecting ring.

[0050] Specifically, the spring assembly includes a folded spring sheet. When the clip is squeezed by an external force, the folded spring sheet can fold and deform, and shrink along a fixed direction toward the connecting ring as the clip is squeezed. When the clip is not squeezed by an external force, the folded spring sheet can quickly restore its deformation, driving the clip to bounce away from the connecting ring. Since the deformation direction of the contraction and release of the folded spring sheet can be guaranteed to be stable, when the clip bounces outward, the two ends of the clip can be quickly connected to the first slot and the second slot, thereby increasing the clutch rate between the first end and the second end.

[0051] Optionally, a limiting plate is provided between the folded spring sheet and the clamping member, and two ends of the limiting plate are respectively larger than the outer contours of the first clamping slot and the second clamping slot.

[0052] Specifically, a limit plate is provided on one side of the clip close to the connecting ring. When the clip is not squeezed by external force, the folded spring sheet drives the clip to move in the direction of the first slot and the second slot through its own deformation. After the two ends of the clip are embedded in the first slot and the second slot, the clip will not pass through the slot through the interference limitation of the limit plate and the outer contour of the slot, thereby avoiding the first end and the second end being in a disconnected and separated transmission relationship when the clip is not subjected to external force.

[0053] Optionally, the cutting and pressing assembly includes a plurality of cutting and pressing discs, and an accommodating cavity for accommodating the driving cylinder is formed between adjacent cutting and pressing discs.

[0054] Optionally, the cutting and pressing disc has an arc-shaped structure, and the cutting and pressing disc and the driving cylinder are set one-to-one. The driving cylinder is connected to the annular support plate, one end of the driving cylinder is provided with an air inlet, and the other end of the driving cylinder is provided with an air outlet connected to the cutting and pressing disc.

[0055] Specifically, the cutting and pressing assembly includes a plurality of cutting and pressing discs, and a driving cylinder is arranged between the cutting and pressing discs. The driving cylinder is connected and fixed to the annular support plate. When the driving cylinder provides driving force for the cutting and pressing discs, the cutting and pressing discs can move inward. Due to the arrangement of the driving cylinder, it is ensured that there is a gap between the cutting and pressing discs, so that when the circumferential cutting and pressing discs move in the radial direction, the movement trajectory of the adjacent cutting and pressing discs will not be affected; in addition, one driving cylinder controls one cutting and pressing disc, and each cutting and pressing disc can be subjected to the same amount of power. The cutting and pressing disc will not fail to squeeze the clamping part into place due to uneven force on the cutting and pressing disc, so that the first end and the second end cannot be completely disconnected.

[0056] Optionally, two sets of cutting and pressing assemblies are provided, and a driving cylinder of another set of cutting and pressing assemblies is centrally arranged on one side of the cutting and pressing disk of one set of cutting and pressing assemblies.

[0057] Specifically, two sets of cutting and pressing assemblies are arranged on the outer periphery of the clamping part, the two sets of cutting and pressing assemblies are arranged along the axial line direction of the connecting ring, and the two sets of cutting and pressing assemblies are staggered, and the driving cylinder in one set of cutting and pressing assemblies corresponds to the center line position of the cutting and pressing disk in the other set of cutting and pressing assemblies; when the first end and the second end need to be disconnected, the clamping part at the driving cylinder position in one set of cutting and pressing assemblies can be subjected to the squeezing force of the cutting and pressing disk in the other set of cutting and pressing assemblies, so as to realize the end of the clamping part being detached from the first slot and the second slot.

[0058] Optionally, the first end is disc-shaped, a first bolt hole is circumferentially arranged on one side of the first end, a first annular flange is circumferentially arranged on the other side of the first end, and the first annular flange has a plurality of first grooves evenly distributed circumferentially.

[0059] Specifically, the first end is configured as a disc-shaped structure, one side of the first end is connected to the load connecting shaft of the motor stand through a plurality of first bolt holes, and the other side of the first end is provided with a plurality of first slots, and the number of the clamping parts and the first slots is the same. When the clamping parts are engaged with the first slots, the strength of the connection between the separation mechanism and the first end can be ensured.

[0060] Optionally, the second end is disc-shaped, a second annular flange is circumferentially arranged on one side of the second end, a plurality of second grooves are evenly distributed circumferentially on the second annular flange, and a second bolt hole is circumferentially arranged on the other side of the second end.

[0061] Specifically, the structure set at the second end is the same as that of the first end, and is connected to the wheel of the vehicle through the second bolt hole. The number of the second slots corresponds to the number of the first slots and the snap-fit ​​parts, so that when the snap-fit ​​parts are not subject to external force, each snap-fit ​​part is connected to the corresponding first slot and second slot, thereby realizing the linkage between the first end and the second end.

[0062] Optionally, the first card slot and the second card slot are in a dovetail shape.

[0063] Specifically, the slot is configured to be dovetail-shaped, so that when the clamping member extends into the slots at both ends, the clamping member limits the axial direction and the circumferential direction of the first end and the second end, ensuring that the first end and the second end can be stably transmitted.

[0064] Example

[0065] like Figures 1 to 8 As shown, the present invention provides a connecting shaft emergency release device, comprising:

[0066] A first end 1, wherein at least one first slot 2 is formed on the outer periphery of the first end 1;

[0067] A second end 3, wherein at least one second slot 4 is formed on the outer periphery of the second end 2;

[0068] The separation mechanism 5 is arranged between the first end 1 and the second end 3. The separation mechanism 5 includes a movable clamping member 6. Both ends of the clamping member 6 are matched with the first clamping slot 2 and the second clamping slot 4 respectively.

[0069] In this embodiment, the separation mechanism 5 further includes:

[0070] The housing includes two annular support plates 7 arranged in parallel, and one side of the housing is connected to the motor stand 8 through a bracket bolt;

[0071] A connecting ring 9 is arranged between two annular support plates 7. A plurality of clamping members 6 are evenly arranged on the outer periphery of the connecting ring 9. The clamping members 6 are connected to the outer wall of the connecting ring 9 via a spring assembly.

[0072] The cutting and pressing assembly 10 is annular and is arranged on the outer periphery of the clamping member 6;

[0073] A plurality of driving cylinders 11 are disposed between the two annular support plates 7 . The driving cylinders 11 can drive the cutting and pressing assembly 10 to move the clamping member 6 toward the center of the circle.

[0074] In this embodiment, the spring assembly includes a folded spring piece 12 . The folded spring piece 12 is V-shaped. Two ends of the folded spring piece 12 are respectively connected to the clamping member 6 and the connecting ring 9 .

[0075] In this embodiment, a limiting plate 13 is disposed between the folded spring sheet 12 and the clamping member 6 , and two ends of the limiting plate 13 are respectively larger than the outer contours of the first clamping slot 2 and the second clamping slot 4 .

[0076] In this embodiment, the cutting and pressing assembly 10 includes a plurality of cutting and pressing disks 14 , and an accommodating cavity for accommodating the driving cylinder 11 is formed between adjacent cutting and pressing disks 14 .

[0077] In this embodiment, the cutting and pressing disc 14 has an arc-shaped structure, and the cutting and pressing disc 14 and the driving cylinder 11 are set one-to-one. The driving cylinder 11 is connected to the annular support plate 7. An air inlet is provided at one end of the driving cylinder 11, and an air outlet is provided at the other end of the driving cylinder 11 and connected to the cutting and pressing disc 14.

[0078] In this embodiment, two sets of cutting and pressing assemblies 10 are provided, and the driving cylinder 11 of the other set of cutting and pressing assemblies is centrally arranged on one side of the cutting and pressing disc 14 of one set of cutting and pressing assemblies.

[0079] In this embodiment, the first end 1 is disc-shaped, a first bolt hole 15 is circumferentially arranged on one side of the first end 1, a first annular flange 16 is circumferentially arranged on the other side of the first end, and the first annular flange 16 has a plurality of first slots 2 evenly distributed circumferentially.

[0080] In this embodiment, the second end 3 is disc-shaped, a second annular flange 17 is circumferentially provided on one side of the second end 3, a plurality of second slots 4 are evenly distributed circumferentially on the second annular flange 17, and a second bolt hole 18 is circumferentially provided on the other side of the second end 3.

[0081] In this embodiment, the first card slot 2 and the second card slot 4 are in a dovetail shape.

[0082] In summary, the release device is connected to the load connecting shaft 19 through the first end 1, and is connected to the wheel through the second end 3. When the wheel is driven by the motor stand for testing, the cutting and pressing disc 14 remains stationary, and under the action of the folding spring sheet 12, the two ends of the clip 6 are clipped with the first slot 2 and the second slot 4, so that the first end 1 and the second end 3 are linked; when the vehicle needs to be released from the motor stand, the driving cylinder 11 provides power to the cutting and pressing disc 14, and the cutting and pressing disc 14 applies an extruding force to the middle part of the clip 6, so that the clip 6 moves toward the axial direction of the connecting ring 9, and the two ends of the clip 6 are disengaged from the first slot 2 and the second slot 4, and the first end 1 is completely disconnected from the second end 3, which saves time and effort, and does not affect the subsequent test plan.

[0083] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A connecting shaft emergency release device, characterized in that: include: A first end, wherein at least one first slot is formed on the outer periphery of the first end; A second end, wherein at least one second slot is formed on the outer periphery of the second end; A separation mechanism is arranged between the first end and the second end, and the separation mechanism comprises a movable clamping member, and two ends of the clamping member are respectively matched with the first clamping slot and the second clamping slot; The separation mechanism also includes: A housing, the housing comprising two annular support plates arranged in parallel, one side of the housing being connected to the motor stand via bracket bolts; A connecting ring is arranged between two annular support plates, a plurality of the clamping members are evenly arranged on the outer circumference of the connecting ring, and the clamping members are connected to the outer wall of the connecting ring through a spring assembly; A cutting and pressing assembly, which is annular and arranged on the periphery of the clamping member; A plurality of driving cylinders are arranged between the two annular support plates, and the driving cylinders can drive the cutting and pressing assembly to move the clamping member toward the center of the circle.

2. The connecting shaft emergency release device according to claim 1, characterized in that: The spring assembly comprises a folded spring sheet, which is V-shaped, and two ends of the folded spring sheet are respectively connected to the clamping member and the connecting ring.

3. The connecting shaft emergency release device according to claim 2, characterized in that: A limiting plate is arranged between the folded spring sheet and the clamping member, and two ends of the limiting plate are respectively larger than the outer contours of the first clamping slot and the second clamping slot.

4. The connecting shaft emergency release device according to claim 1, characterized in that: The cutting and pressing assembly includes a plurality of cutting and pressing discs, and a receiving cavity for accommodating the driving cylinder is formed between adjacent cutting and pressing discs.

5. The connecting shaft emergency release device according to claim 4, characterized in that: The cutting and pressing disc has an arc-shaped structure, and is arranged one-to-one with the driving cylinder. The driving cylinder is connected to the annular support plate, an air inlet is provided at one end of the driving cylinder, and an air outlet is provided at the other end of the driving cylinder and is connected to the cutting and pressing disc.

6. The connecting shaft emergency release device according to claim 5, characterized in that: The cutting and pressing components are provided in two sets, and the driving cylinder in the other set of the cutting and pressing components is centrally arranged on one side of the cutting and pressing disk in one set of the cutting and pressing components.

7. The connecting shaft emergency release device according to claim 1, characterized in that: The first end is disc-shaped, a first bolt hole is circumferentially arranged on one side of the first end, a first annular flange is circumferentially arranged on the other side of the first end, and a plurality of first slots are evenly distributed on the first annular flange along the circumferential direction.

8. The connecting shaft emergency release device according to claim 7, characterized in that: The second end is disc-shaped, a second annular flange is circumferentially arranged on one side of the second end, a plurality of second clamping grooves are evenly distributed circumferentially on the second annular flange, and a second bolt hole is circumferentially arranged on the other side of the second end.

9. The connecting shaft emergency release device according to claim 8, characterized in that: The first card slot and the second card slot are in a dovetail shape.

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