CN219870240U - Parking pawl durability testing device - Google Patents
Parking pawl durability testing device Download PDFInfo
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- CN219870240U CN219870240U CN202320243131.7U CN202320243131U CN219870240U CN 219870240 U CN219870240 U CN 219870240U CN 202320243131 U CN202320243131 U CN 202320243131U CN 219870240 U CN219870240 U CN 219870240U
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- pawl
- ratchet wheel
- driving
- assembly
- pressing
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- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a parking pawl durability testing device which comprises a frame body, a ratchet wheel arranged on the frame body, a pawl seat and a compression bar assembly, wherein the ratchet wheel is arranged on the frame body: the ratchet wheel is connected with a first driving component for driving the ratchet wheel to rotate positively and negatively on the frame body and a third driving component for driving the ratchet wheel to rotate continuously; the pawl seat is positioned on the circumferential side surface of the ratchet wheel and is used for loading the first end of the pawl; the first end of the compression bar assembly is provided with an elastic pressing assembly and corresponds to the second end of the pawl, the second end of the compression bar assembly is connected with a second driving assembly, and the second driving assembly drives the compression bar assembly to axially move, so that the elastic pressing assembly forms an unlocking position and a pressing position relative to the pawl; when the ratchet is in the unlocking position, the second end of the pawl is tilted upwards, and the clamping pin on the pawl is separated from the ratchet; when the ratchet wheel is in the pressing position, the elastic pressing component presses down on the second end of the pawl, so that the clamping foot on the pawl is clamped on the ratchet wheel. The utility model is convenient for detecting the durability of the parking pawl.
Description
Technical Field
The utility model relates to the field of test tools, in particular to a device for testing durability of a parking pawl.
Background
The parking pawl of the automobile gearbox shown in fig. 3 is an important part for protecting safe parking of the automobile, and when the automobile is parked, the part is locked with a transmission part of the automobile through an operation handle, so that safe and reliable parking of the automobile is realized. Therefore, the stability of the parking pawl of the automobile gearbox affects the safety of the vehicle.
In the prior art, there is no device for detecting the durability of the parking pawl alone, so that the durability of the parking pawl cannot be known, and therefore, there is a need in the prior art for a device capable of detecting the durability of the parking pawl.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a device for testing the durability of a parking pawl, which is convenient for detecting the durability of the parking pawl.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a parking pawl durability testing arrangement which characterized in that includes the support body and sets up ratchet, pawl seat and the depression bar subassembly on the support body:
the ratchet wheel is connected with a first driving component for driving the ratchet wheel to rotate positively and negatively on the frame body and a third driving component for driving the ratchet wheel to rotate continuously;
the pawl seat is positioned on the circumferential side surface of the ratchet wheel and used for loading the first end of the pawl and driving the second end of the pawl to rotate back to the ratchet wheel;
the first end of the pressure bar assembly is provided with an elastic pressing assembly and corresponds to the second end of the pawl, the second end of the pressure bar assembly is connected with a second driving assembly, and the second driving assembly drives the pressure bar assembly to axially move and enables the elastic pressing assembly to form an unlocking position and a pressing position relative to the pawl;
when the elastic pressing component is in an unlocking position, the second end of the pawl is tilted upwards, and the clamping foot on the pawl is separated from the ratchet wheel; when the elastic pressing component is in the pressing position, the elastic pressing component presses down on the second end of the pawl, so that the clamping foot on the pawl is clamped on the ratchet wheel.
Preferably, the first driving assembly comprises a first cylinder, a second cylinder, a swinging block and a swinging arm;
the first air cylinder and the second air cylinder are connected with the swing block so as to drive the swing block to swing left and right;
the lower end of the swing arm is inserted into the swing block, and the upper end of the swing arm is in limit connection with the circumferential direction of the rotating shaft of the ratchet wheel.
Preferably, the pawl seat comprises a base, a locating pin and a torsion spring;
the positioning pin is arranged on the base and used for installing the first end of the pawl;
the torsional spring is sleeved on the locating pin, one end of the torsional spring is fixed on the base, and the other end of the torsional spring is fixed on the pawl, so that the second end of the pawl is driven to rotate back to the ratchet wheel in a natural state.
Preferably, the compression bar assembly comprises a bar body, a compression sleeve and a spring;
the spring and the pressing sleeve are sleeved on the first end of the rod body, and meanwhile, two ends of the spring are supported on the rod body and the pressing sleeve, so that an elastic pressing assembly is formed on the first end of the rod body.
Preferably, the outer wall of the pressing sleeve is provided with a conical guide step, and when the elastic pressing assembly is in the pressing position, the second end of the pawl abuts against the guide step.
The utility model has the advantages that: the use environment of the pawl can be simulated, so that the durability of the pawl in use can be detected.
Drawings
Fig. 1 is a schematic diagram of a device for testing durability of a parking pawl according to the present embodiment;
FIG. 2 is a schematic diagram showing the cooperation among a pawl, a ratchet, a plunger assembly, a pawl seat, a third drive assembly and a second drive assembly according to the present embodiment;
fig. 3 is a schematic view of a pawl provided in this embodiment.
Detailed Description
The durability test device for a parking pawl according to the present utility model will be further described with reference to fig. 1 to 3.
The device for testing the durability of the parking pawl is characterized by comprising a frame body 1, a ratchet wheel 2, a pawl seat 3 and a compression bar assembly 5, wherein the ratchet wheel 2, the pawl seat 3 and the compression bar assembly 5 are arranged on the frame body 1.
The ratchet wheel 2 is arranged on the surface of the workbench 11 of the frame body 1 through a rotating shaft 23 and a corresponding bearing seat 22, the workbench 11 is provided with a mounting opening, most parts of the ratchet wheel 2 are positioned below the workbench 11, and the top part of the ratchet wheel passes through the mounting opening and is positioned above the workbench 11; the ratchet 2 has a tooth groove 21 on its circumferential surface. A first end of a rotating shaft 23 of the ratchet wheel 2 is connected with a first driving component 8 which drives the ratchet wheel 2 to rotate forward and backward on the frame body 1, and a second end of the rotating shaft 23 of the ratchet wheel 2 is connected with a third driving component 9 which drives the ratchet wheel 2 to rotate continuously.
The pawl seat 3 is located on the circumferential side of the ratchet wheel 2, and is used for loading the first end of the pawl 4, and simultaneously drives the second end of the pawl 4 to rotate back to the ratchet wheel 2, so that the clamping pin 41 on the pawl 4 is separated from the tooth slot 21 on the ratchet wheel 2.
The first end of the pressure bar assembly 5 is provided with an elastic pressing-down assembly 52 and corresponds to the second end of the pawl 4, the second end of the pressure bar assembly 5 is connected with a second driving assembly 7, and the second driving assembly 7 drives the pressure bar assembly 5 to axially move and enables the elastic pressing-down assembly 52 to form an unlocking position and a pressing-down position relative to the pawl 4; when the elastic pressing component 52 is in the unlocking position, the second end of the pawl 4 is tilted upwards, and the clamping pin 41 on the pawl 4 is separated from the ratchet wheel 2; when the elastic pressing component 52 is in the pressing position, the elastic pressing component 52 presses down on the second end of the pawl 4, so that the clamping pin 41 on the pawl 4 is clamped in the tooth groove of the ratchet 2.
Specifically, the first driving assembly 8 includes a first cylinder 81, a second cylinder 84, a swing block 83, and a swing arm 82. The first cylinder 81 and the second cylinder 84 are symmetrically arranged at the bottom of the frame body 1 and are connected with the swinging block 83 through a hinge shaft so as to drive the swinging block 83 to swing left and right; the middle part of the swinging block 83 is provided with a slot, the lower end of the swinging arm 82 is inserted into the slot of the swinging block 83, and the upper end is in limit connection with the circumference of the rotating shaft 23 of the ratchet wheel 2. Therefore, when the first cylinder 81 and the second cylinder 84 are matched to extend and retract, the swing block 83 can be driven to swing left and right, and the ratchet 2 is driven to reciprocate left and right by the swing arm 82.
The third driving component 9 is a driving motor, which is located below the workbench 11 and is connected with the second end of the rotating shaft 23 of the ratchet wheel 2 through a transmission belt so as to drive the ratchet wheel 2 to rotate continuously. When the third driving component 9 drives the ratchet wheel 2 to rotate continuously, the rotating shaft 23 of the ratchet wheel 2 needs to be separated from the swinging arm 82, or a clutch mechanism is arranged between the swinging arm 82 and the rotating shaft 23 of the ratchet wheel 2, so that mutual interference between the first driving component 8 and the third driving component 9 is avoided.
The pawl seat 3 includes a base 31, a detent pin 33, and a torsion spring 32. The base 31 is positioned on the upper surface of the workbench 11 and beside the mounting opening; the positioning pin 33 is arranged on the base 31 and is penetrated and installed by an installation hole on the first end of the pawl 4; the torsion spring 32 is sleeved on the positioning pin 33, and meanwhile, one end of the torsion spring 32 is fixedly inserted on the base 31, and the other end of the torsion spring is fixedly inserted on the pawl 4, so that the second end of the pawl 4 is driven to rotate back to the ratchet wheel 2 in a natural state.
The compression bar assembly 5 includes a bar body 51, a compression sleeve 522 and a spring 521. The spring 521 and the pressing sleeve 522 are sleeved on the first end of the rod 51, and two ends of the spring 521 are respectively supported on the limiting block 511 on the outer surface of the rod 51 and the end surface of the pressing sleeve 522, so that the pressing sleeve 522 is pushed outwards, and an elastic pressing component 52 is formed on the first end of the rod 51. In order to prevent the pressing sleeve 522 from being pushed out of the first end of the rod body 51, the first end of the rod body 51 is axially limited and sleeved with the supporting tube 53 in a threaded fit or bolt fixing manner, and one end of the pressing sleeve 522, which is opposite to the spring 521, is supported on the supporting tube 53; the outer wall of the pressing sleeve 522 is provided with a conical guide step 5221, when the elastic pressing assembly 52 is in a pressing position, the guide inclined surface 42 on the upper surface of the second end of the pawl 4 is abutted against the guide step 5221, so that when the clamping leg 41 of the pawl 4 is impacted strongly by the tooth slot 21, the pressing sleeve 522 can be driven to move axially, the second end of the pawl 4 is sprung upwards, and the clamping leg 41 is separated from the tooth slot 21.
The positioning seat 6 is further arranged at a position of the workbench 11 corresponding to the second end of the pawl 4, the positioning seat 6 is provided with a guide groove 61 for accommodating the elastic pressing component 52 and horizontally guiding the elastic pressing component 52, a cover plate 62 is fixed on the upper surface of the positioning seat 6 through bolts, and the cover plate 62 is covered on an upper notch of the guide groove 61 at the same time so as to limit the elastic pressing component 52 up and down.
The second driving assembly 7 includes a driving shaft 73 mounted on the table 11 through a bearing housing 74, a driving arm 75 connected to the driving shaft 73 and rotated synchronously with the driving shaft 73, a cam link mechanism 72 connected to the driving shaft 73, and a driving motor 71 connected to the cam link mechanism 72, and a second end of the rod body 51 is connected to the driving arm 75. After the driving motor 71 acts, the cam link mechanism 72 is driven to reciprocate, so that the driving shaft 73 and the driving arm 75 are driven to reciprocate, the compression bar assembly 5 is driven to axially move, and the elastic pressing assembly 52 is switched between the unlocking position and the pressing position.
During detection, the second driving component 7 drives the pressing rod component to be in a downward pressing position, so that the guide step 5221 on the pressing sleeve 522 is pressed down on the guide inclined surface 42 on the upper surface of the second end of the pawl 4, and the clamping pin 41 at the middle part of the pawl 4 is pressed into the tooth slot 21 of the ratchet wheel 2;
the first driving component 8 drives the ratchet wheel 2 to swing left and right for a certain number of times, such as one million times, when observing that the ratchet wheel 2 swings left and right, the second end of the pawl 4 pushes the pressing sleeve 522 to move horizontally to jump upwards, and then observing that the pawl 4 is damaged after the ratchet wheel 2 swings left and right for one million times, namely detecting the durability;
the third driving component 9 can drive the ratchet wheel 2 to continuously rotate leftwards or rightwards, and whether the pawl 4 can be engaged or disengaged is observed;
after the detection is completed, the second driving assembly 7 drives the compression bar assembly 5 to retract to the unlocking position, so that the guide step 5221 is separated from the guide inclined plane on the pawl 4, the second end of the pawl 4 is upwards elastic, and the clamping pin 41 is separated from the tooth slot 21.
Unless specifically stated otherwise, in the present utility model, if there are terms such as "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional or positional relationship indicated on the drawings are merely for convenience of describing the present utility model and simplifying the description, and not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional or positional relationship in the present utility model are merely for exemplary illustration and not to be construed as limitations of the present patent, and it is possible for those skilled in the art to combine the drawings and understand the specific meaning of the above terms according to circumstances.
Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (5)
1. The utility model provides a parking pawl durability testing arrangement which characterized in that includes the support body and sets up ratchet, pawl seat and the depression bar subassembly on the support body:
the ratchet wheel is connected with a first driving component for driving the ratchet wheel to rotate positively and negatively on the frame body and a third driving component for driving the ratchet wheel to rotate continuously;
the pawl seat is positioned on the circumferential side surface of the ratchet wheel and used for loading the first end of the pawl and driving the second end of the pawl to rotate back to the ratchet wheel;
the first end of the pressure bar assembly is provided with an elastic pressing assembly and corresponds to the second end of the pawl, the second end of the pressure bar assembly is connected with a second driving assembly, and the second driving assembly drives the pressure bar assembly to axially move and enables the elastic pressing assembly to form an unlocking position and a pressing position relative to the pawl;
when the elastic pressing component is in an unlocking position, the second end of the pawl is tilted upwards, and the clamping foot on the pawl is separated from the ratchet wheel; when the elastic pressing component is in the pressing position, the elastic pressing component presses down on the second end of the pawl, so that the clamping foot on the pawl is clamped on the ratchet wheel.
2. The parking pawl durability test device according to claim 1, characterized in that: the first driving assembly comprises a first cylinder, a second cylinder, a swinging block and a swinging arm;
the first air cylinder and the second air cylinder are connected with the swing block so as to drive the swing block to swing left and right;
the lower end of the swing arm is inserted into the swing block, and the upper end of the swing arm is in limit connection with the circumferential direction of the rotating shaft of the ratchet wheel.
3. The parking pawl durability test device according to claim 1, characterized in that: the pawl seat comprises a base, a locating pin and a torsion spring;
the positioning pin is arranged on the base and used for installing the first end of the pawl;
the torsional spring is sleeved on the locating pin, one end of the torsional spring is fixed on the base, and the other end of the torsional spring is fixed on the pawl, so that the second end of the pawl is driven to rotate back to the ratchet wheel in a natural state.
4. The parking pawl durability test device according to claim 1, characterized in that: the compression bar assembly comprises a bar body, a compression sleeve and a spring;
the spring and the pressing sleeve are sleeved on the first end of the rod body, and meanwhile, two ends of the spring are supported on the rod body and the pressing sleeve, so that an elastic pressing assembly is formed on the first end of the rod body.
5. The parking pawl durability test device according to claim 4, characterized in that: the outer wall of the pressing sleeve is provided with a conical guide step, and when the elastic pressing assembly is in a pressing position, the second end of the pawl abuts against the guide step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320243131.7U CN219870240U (en) | 2023-02-04 | 2023-02-04 | Parking pawl durability testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320243131.7U CN219870240U (en) | 2023-02-04 | 2023-02-04 | Parking pawl durability testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870240U true CN219870240U (en) | 2023-10-20 |
Family
ID=88343748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320243131.7U Active CN219870240U (en) | 2023-02-04 | 2023-02-04 | Parking pawl durability testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870240U (en) |
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2023
- 2023-02-04 CN CN202320243131.7U patent/CN219870240U/en active Active
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