CN115184194A

CN115184194A - Fatigue detection device for torsion beam of automobile

Info

Publication number: CN115184194A
Application number: CN202210859970.1A
Authority: CN
Inventors: 甄冉; 赵术英; 张淑珍; 王振; 张国栋
Original assignee: Shandong Meichen Industrial Group Co ltd
Current assignee: Shandong Meichen Industrial Group Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-10-14

Abstract

The invention relates to the technical field of automobile part detection, and discloses an automobile torsion beam fatigue detection device which comprises a fixed base, wherein a support frame is fixedly arranged at the upper end of the fixed base, a power cylinder is rotatably arranged at the central position of the upper end of the support frame, the lower side inside the power cylinder is connected with a power shaft through a clamping part, a power block is rotatably arranged on the power shaft, a plurality of power teeth are arranged on the power block, the top of the power cylinder is connected with a transmission shaft which is rotatably arranged at the top of the support frame through a transmission part a, a worm is arranged at the bottom of the transmission shaft, a worm wheel is meshed with the outer side of the worm, a crank frame a is coaxially and fixedly arranged at the central position of the worm wheel, and one end, far away from the worm wheel, of the crank frame a is hinged with a connecting rod frame. According to the invention, the load block can rotate while moving up and down, so that a pressure load in the vertical direction and a shear load in the horizontal direction can be generated on the automobile torsion beam in a clamping state, and the actual use condition of the automobile torsion beam is finally simulated.

Description

Fatigue detection device for torsion beam of automobile

Technical Field

The invention relates to the technical field of automobile part detection, in particular to an automobile torsion beam fatigue detection device.

Background

A torsion beam is a kind of automotive suspension, which is a non-independent suspension, such automotive suspensions are often found on some compact sedans and compact SUVs, which is a cost limitation on one hand and is intended to enlarge the space of the rear seats and the space of the trunk on the other hand.

The left trailing arm and the right trailing arm of the torsion beam type rear automobile suspension are connected by a middle torsion beam, so that the automobile suspension looks like an H shape, and a suspension system is connected with an automobile body by the front end of the trailing arm. Due to the high stiffness of the trailing arm, there is generally no need to configure a transverse link. In addition, the torsion beam type rear suspension has the advantages of simple structure, low production and manufacturing cost, easy maintenance, small occupied space of the chassis, capability of reducing the height of the chassis and increase the space in the vehicle.

Present automobile torsion beam all need carry out fatigue strength's detection after processing is complete to the safe handling in later stage, however present detection to automobile torsion beam all is detection under the static environment, can't simulate out automobile torsion beam's in service behavior under the actual operating condition the service behavior, cause fatigue strength's detection precision lower, consequently, need further improvement.

Disclosure of Invention

The invention aims to provide a fatigue detection device for an automobile torsion beam, which is used for solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a car torsion beam fatigue detection device, includes unable adjustment base, unable adjustment base upper end fixed mounting has the support frame, and support frame upper end central point puts to rotate and installs a power section of thick bamboo, and the inside downside of power section of thick bamboo is connected with the power shaft through joint portion, rotates on the power shaft and installs the power piece, is provided with a plurality of power teeth on the power piece, the power section of thick bamboo top is connected with through transmission portion an and rotates the transmission shaft that sets up at the support frame top, and the worm is installed to the transmission shaft bottom, and the meshing of the worm outside has the worm wheel, and the coaxial fixed mounting of worm wheel central point puts crank frame a, and it has the connecting rod frame to keep away from worm wheel one end on the crank frame a and articulate, and the connecting rod frame is kept away from on the connecting rod frame b that connecting rod frame one end fixed mounting has the rotary gear with power tooth intermeshing, support frame upper end one side rotates through spacing portion and installs fixture, and support frame upper end opposite side rotates installs the centre gripping axle, is provided with the drive division on the centre gripping axle, and the centre gripping axle keeps away from support frame one end and also installs fixture.

As a modified scheme of the invention: the power cylinder is further connected with an output end of a power motor through a transmission part b, and the power motor is installed on the support frame.

As a modified scheme of the invention: the transmission part b comprises a driving belt wheel arranged on the power cylinder, the driving belt wheel is connected with a driven belt wheel through a belt, and the driven belt wheel is arranged on the output end of the power motor.

As a modified scheme of the invention: the transmission part a comprises a driving gear fixed at the end part of the power cylinder, and a driven gear fixedly installed on the transmission shaft is meshed outside the driving gear.

As a modified scheme of the invention: the joint portion is including setting up the joint groove in the power shaft top outside and setting up the joint strip inboard in power barrel bottom, the joint strip slides and sets up in joint inslot portion.

As a modified scheme of the invention: one end, far away from the power teeth, of the outer side of the power block is fixedly provided with an L-shaped rod body, and the L-shaped rod body is arranged on the support frame in a sliding mode.

As a modified scheme of the invention: and a load block is fixedly arranged at the bottom of the power shaft.

As a modified scheme of the invention: spacing portion is including rotating the spacing section of thick bamboo that sets up on the support frame, and spacing axle is installed through the slider to spacing section of thick bamboo inside, the slider is including setting up the sliding tray at spacing section of thick bamboo inner wall and setting up the sliding strip in spacing off-axial side, the sliding strip slides and sets up inside the sliding tray.

As a modified scheme of the invention: the driving part comprises a lifting frame fixedly installed on the power block and a clamping gear fixedly installed on the clamping shaft, a lifting rack meshed with the clamping gear is arranged on the lifting frame, and a guide plate fixed on the supporting frame is connected to the lifting frame in a penetrating mode.

As a modified scheme of the invention: the clamping mechanism comprises a clamping frame, clamping screws are symmetrically arranged on the upper side and the lower side of the inside of the clamping frame in a rotating mode, a clamping plate is installed at one end of the inner side of each clamping screw in a rotating mode through a bearing seat, and a handle is fixedly installed at one end, far away from the clamping plate, of each clamping screw.

Compared with the prior art, the invention has the beneficial effects that:

the utility model provides a car torsion beam fatigue detection device, and is rational in infrastructure, and novel in design, joint portion through setting up, mutually support of crank frame an and crank frame b, make the load piece can also rotate when reciprocating, and then can produce the pressure load of vertical direction and the ascending shear load of horizontal direction to the car torsion beam under the clamping state, simultaneously under the cooperation of drive division and spacing portion, can carry out the rotation of certain angle to the torsion beam under the clamping state, finally simulate out the in-service use operating mode of car torsion beam, the fatigue detection precision has further been improved, therefore, the clothes hanger is strong in practicability, and high reliability.

Drawings

FIG. 1 is a schematic overall front view of the present invention;

FIG. 2 is a schematic bottom view of the present invention;

FIG. 3 is a schematic overall rear view of the present invention;

FIG. 4 is a schematic overall top view of the present invention;

FIG. 5 is a schematic structural view of a clamping mechanism according to the present invention;

FIG. 6 is a schematic view showing the mounting structure of crank frame a and crank frame b according to the present invention;

fig. 7 is a partially enlarged structural diagram of a in fig. 6.

In the figure: 1. a fixed base; 2. a support frame; 3. a guide plate; 4. a lifting frame; 5. a power motor; 6. an L-shaped rod body; 7. a driven pulley; 8. a driving pulley; 9. a driving gear; 10. a driven gear; 11. a drive shaft; 12. a worm gear; 13. a crank frame a; 14. a worm; 15. a power cylinder; 16. a crank frame b; 17. a rotating gear; 18. a power tooth; 19. a power block; 20. a power shaft; 21. a load block; 22. a connecting rod rest; 23. a clamping mechanism; 24. a limiting cylinder; 25. a limiting shaft; 26. a lifting rack; 27. a clamping shaft; 28. clamping the gear; 29. a clamping strip; 30. a slide bar; 31. clamping the screw rod; 32. a bearing seat; 33. a clamping plate; 34. a handle; 35. and (4) clamping the frame.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the present invention, and further, the terms "first", "second", and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated, whereby the features defined as "first", "second", and the like may explicitly or implicitly include one or more such features, and in the description of the present invention, unless otherwise indicated, "plurality" means two or more than two.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and a person skilled in the art may understand the specific meaning of the above terms in the present invention through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to fig. 1 to 7, in the embodiment of the present invention, an automobile torsion beam fatigue detecting apparatus includes a fixing base 1, a support frame 2 is fixedly installed at an upper end of the fixing base 1, the support frame 2 is an inverted U-shaped frame structure, a power cylinder 15 is rotatably installed at a central position of an upper end of the support frame 2, a power shaft 20 is connected to a lower side inside the power cylinder 15 through a clamping portion, a torque of the power cylinder 15 can be transmitted to the power shaft 20 through the cooperation of the clamping portion, a power block 19 is rotatably installed on the power shaft 20, a plurality of power teeth 18 are disposed on the power block 19, a transmission shaft 11 rotatably disposed at a top of the support frame 2 is connected to a top of the power cylinder 15 through a transmission portion a, the torque on the power cylinder 15 can be transmitted to the transmission shaft 11 through the transmission portion a, it is finally satisfied that the power shaft 20 can move up and down while rotating, a worm 14 is installed at a bottom of the transmission shaft 11, a worm wheel 12 is meshed outside the worm 14, a crank frame a13 is coaxially and fixedly installed at the center position of the worm wheel 12, a connecting rod frame 22 is hinged to one end, far away from the worm wheel 12, of the crank frame a13, a crank frame b16 is hinged to one end, far away from the crank frame a13, of the connecting rod frame a13, a rotating gear 17 meshed with the power teeth 18 is fixedly installed at one end, far away from the connecting rod frame 22, of the crank frame b16, the rotating gear 17 swings at a certain angle through mutual matching of the crank frame a13 and the crank frame b16 and is finally meshed with the power teeth 18, up-and-down movement of the power block 19 is achieved, up-and-down movement requirements of the power shaft 20 during rotation are met, a clamping mechanism 23 is rotatably installed on one side of the upper end of the support frame 2 through a limiting part and used for achieving effective clamping of two ends of an automobile torsion beam to be detected, a clamping shaft 27 is rotatably installed on the other side of the upper end of the support frame 2, the driving part is arranged on the clamping shaft 27, the clamping mechanism 23 is also arranged at one end, far away from the support frame 2, of the clamping shaft 27, and the clamping mechanism 23 can swing at a certain angle while clamping the torsion beam of the automobile through the matching of the driving part, so that the bumpy working state of the torsion beam of the automobile in actual operation can be simulated.

In a condition of this embodiment, power tube 15 still is connected with power motor 5's output through transmission portion b, and power motor 5 installs on support frame 2, and is specific, power motor 5 has driven power tube 15 through transmission portion b's effect and has carried out work to rotation for power shaft 20 provides direct power source.

In one aspect of this embodiment, transmission portion b is including installing driving pulley 8 on power tube 15, and driving pulley 8 is connected with driven pulley 7 through the belt, and driven pulley 7 is installed on the output of motor power 5, and is concrete, motor power 5 has driven driving pulley 8 and has rotated, then makes driven pulley 7 drive power tube 15 directly to rotate under the effect of belt.

In one aspect of this embodiment, the transmission portion a includes a driving gear 9 fixed at an end of the power cylinder 15, and a driven gear 10 fixedly mounted on the transmission shaft 11 is engaged outside the driving gear 9, so that the transmission shaft 11 also performs corresponding synchronous rotation through the above-mentioned structure.

In the condition of this embodiment, joint portion is including setting up the joint groove in the outside of power axle 20 top and setting up at the inboard joint strip 29 in power barrel 15 bottom, joint strip 29 slides and sets up in the joint inslot portion, through the setting of above-mentioned structure for power barrel 15 has driven power axle 20 and has carried out the reciprocating that can not influence power axle 20 when the pivoted.

In one aspect of this embodiment, a load block 21 is fixedly mounted at the bottom of the power shaft 20, and is used for applying a load to the torsion beam of the vehicle to be detected.

In a case of this embodiment, the limiting portion includes a limiting cylinder 24 which is rotatably arranged on the support frame 2, a limiting shaft 25 is mounted inside the limiting cylinder 24 through a sliding part, the sliding part includes a sliding groove which is arranged on the inner wall of the limiting cylinder 24 and a sliding strip 30 which is arranged outside the limiting shaft 25, the sliding strip 30 is slidably arranged inside the sliding groove, the synchronous rotation requirement of the clamping mechanisms 23 can be met through arranging the sliding part, and meanwhile, the distance between the two clamping mechanisms 23 can be adjusted in a certain position, and the rotation requirement between the two clamping mechanisms 23 is not influenced.

In the condition of this embodiment, the drive division includes crane 4 and the fixed mounting of fixed mounting on power piece 19 and centre gripping gear 28 on centre gripping axle 27, be provided with the lifting rack 26 with centre gripping gear 28 intermeshing on the crane 4, the cross-under has the deflector 3 of fixing on support frame 2 on the crane 4, and is specific, crane 4 is at the in-process that reciprocates for lifting rack 26 simultaneous movement finally and centre gripping gear 28 intermeshing has driven fixture 23 and has carried out the swing of certain angle, deflector 3 is spacing to the reciprocating of crane 4, has avoided crane 4 to take place to rock in the motion process.

In one aspect of this embodiment, fixture 23 includes centre gripping frame 35, and the bilateral symmetry rotates about centre gripping frame 35 is inside to be provided with clamping screw 31, and clamping screw 31 inboard one end is rotated through bearing frame 32 and is installed grip block 33, clamping screw 31 keeps away from grip block 33 one end fixed mounting and has handle 34. During operation, the handle 34 is rotated, so that the clamping screw 31 rotates, the rotary motion of the clamping screw 31 is converted into the linear motion of the clamping plate 33 under the action of the bearing seat 32, the purpose of clamping the upper end surface and the lower end surface of the automobile torsion beam is finally achieved, and the whole clamping operation is rapid and convenient.

Example 2

In another embodiment of the present invention, the embodiment is different from the above embodiments in that an L-shaped rod 6 is fixedly installed at one end of the outer side of the power block 19 far from the power teeth 18, the L-shaped rod 6 is slidably disposed on the support frame 2, and the L-shaped rod 6 is disposed to limit the up-and-down movement of the power block 19, so as to avoid the power block 19 from shaking during the up-and-down movement, ensure the meshing precision between the power teeth 18 and the rotary gear 17, and further improve the reliability of the device.

The working principle of the invention is as follows: during operation, the automobile torsion beam to be detected is clamped and installed through the clamping mechanism 23, then the power motor 5 is started, and finally the load block 21 rotates and moves up and down at the same time, so that the clamping mechanism 23 in a reciprocating swing state applies a load, the requirement for fatigue detection of the automobile torsion beam is met finally, the whole operation process is rapid and convenient, and the automobile torsion beam detection device is worth popularizing and using.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The fatigue detection device for the torsion beam of the automobile comprises a fixed base (1) and is characterized in that a support frame (2) is fixedly installed at the upper end of the fixed base (1), a power cylinder (15) is rotatably installed at the center position of the upper end of the support frame (2), a power shaft (20) is connected to the lower side inside the power cylinder (15) through a clamping portion, a power block (19) is rotatably installed on the power shaft (20), a plurality of power teeth (18) are arranged on the power block (19), the top of the power cylinder (15) is connected with a transmission shaft (11) rotatably arranged at the top of the support frame (2) through a transmission portion a, a worm (14) is installed at the bottom of the transmission shaft (11), a worm wheel (12) is meshed outside the worm (14), a crank frame a (13) is coaxially and fixedly installed at the center position of the worm wheel (12), a connecting rod frame (22) is hinged to one end, away from the worm wheel (12), a connecting rod frame (22) is hinged to the other end, a crank frame (13) is hinged to the other end, a crank frame (16) is hinged to the other side, a gear (17) which is meshed with the power teeth (18) is fixedly installed at one end, a clamping mechanism is installed at one side of the upper end of the connecting rod frame (16), and a clamping mechanism (17) is installed at one side of the upper end of the support frame (2), a driving part is arranged on the clamping shaft (27), and a clamping mechanism (23) is also arranged at one end of the clamping shaft (27) far away from the support frame (2).

2. The fatigue detection device for the torsion beam of the automobile according to claim 1, wherein the power cylinder (15) is further connected with an output end of a power motor (5) through a transmission part b, and the power motor (5) is installed on the support frame (2).

3. The fatigue detecting device for the torsion beam of the automobile according to claim 2, wherein the transmission part b comprises a driving pulley (8) mounted on the power drum (15), the driving pulley (8) is connected with a driven pulley (7) through a belt, and the driven pulley (7) is mounted on the output end of the power motor (5).

4. The fatigue detecting device for the torsion beam of the automobile according to claim 3, wherein the transmission part a comprises a driving gear (9) fixed at the end of the power cylinder (15), and a driven gear (10) fixedly mounted on the transmission shaft (11) is engaged outside the driving gear (9).

5. The fatigue detection device for the torsion beam of the automobile according to claim 1, wherein the clamping portion comprises a clamping groove formed in the outer side of the top of the power shaft (20) and a clamping strip (29) arranged on the inner side of the bottom of the power cylinder (15), and the clamping strip (29) is slidably arranged in the clamping groove.

6. The fatigue detection device for the torsion beam of the automobile according to claim 5, wherein an L-shaped rod body (6) is fixedly installed at one end of the outer side of the power block (19) far away from the power teeth (18), and the L-shaped rod body (6) is arranged on the support frame (2) in a sliding manner.

7. The fatigue detecting device for the torsion beam of an automobile according to claim 1, wherein a load block (21) is fixedly mounted at the bottom of the power shaft (20).

8. The fatigue detecting device for the torsion beam of an automobile according to claim 1, wherein the limiting portion comprises a limiting cylinder (24) rotatably disposed on the supporting frame (2), a limiting shaft (25) is mounted inside the limiting cylinder (24) through a sliding member, the sliding member comprises a sliding groove disposed on an inner wall of the limiting cylinder (24) and a sliding bar (30) disposed outside the limiting shaft (25), and the sliding bar (30) is slidably disposed inside the sliding groove.

9. The fatigue detection device for the torsion beam of the automobile according to claim 1, wherein the driving part comprises a lifting frame (4) fixedly installed on the power block (19) and a clamping gear (28) fixedly installed on a clamping shaft (27), a lifting rack (26) meshed with the clamping gear (28) is arranged on the lifting frame (4), and a guide plate (3) fixed on the support frame (2) is connected to the lifting frame (4) in a penetrating manner.

10. The fatigue detection device for the torsion beam of the automobile according to claim 1, wherein the clamping mechanism (23) comprises a clamping frame (35), clamping screws (31) are symmetrically and rotatably arranged at the upper side and the lower side inside the clamping frame (35), a clamping plate (33) is rotatably arranged at one end of the inner side of each clamping screw (31) through a bearing seat (32), and a handle (34) is fixedly arranged at one end, far away from the clamping plate (33), of each clamping screw (31).