CN107631944A - A kind of spindle impact test apparatus - Google Patents

Abstract

The invention discloses an automobile steering knuckle impact test device, which comprises a base and a support frame fixedly installed on the base, the support frame is provided with an impact position adjustment device, and the end of the impact position adjustment device is detachably vertical An impact device is directly fixed, and an impact platform on a fixed base is arranged below the impact device, and a steering knuckle clamp device is arranged on the impact platform. The automobile steering knuckle impact test device of the invention has the advantages of simple structure, convenient operation, strong equipment flexibility, accurate positioning of impact points, and improved reliability of test results.

Description

An automobile steering knuckle impact test device

technical field

The invention relates to the field of impact test equipment, in particular to an automobile steering knuckle impact test device.

Background technique

The steering knuckle is one of the main parts on the steering axle of the car, which can make the car run stably and transmit the driving direction sensitively. The function of the steering knuckle is to bear the front load of the car, support and drive the front wheel to rotate around the kingpin to make the car turn. In the driving state of the car, it bears variable impact loads. Therefore, it is required to have high strength, so it must be strictly tested before the car steering knuckle is officially put into use. At present, for the impact resistance of the car steering knuckle The main detection method of performance is the drop weight impact test. The drop weight impact test can well restore the impact force of the steering knuckle of the car during driving. At present, most of the car steering knuckle impact test devices have complex structures. The points are not accurate enough, and the test device is poorly adjustable and not flexible enough.

Contents of the invention

The object of the present invention is to provide an automobile steering knuckle impact test device to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

An automobile steering knuckle impact test device, comprising a base and a support frame fixedly installed on the base, the support frame is provided with an impact position adjustment device, and the end of the impact position adjustment device is detachably fixed vertically with an impact device, an impact table on a fixed base is provided below the impact device, and a steering knuckle clamp device is provided on the impact table.

As a further solution of the present invention: the support frame includes a support rod vertically fixed on the base, and a top frame horizontally fixed at the top of the support rod.

As a further solution of the present invention: the intersection of the support rod and the base is provided with an L-shaped fixing frame, the vertical end of the L-shaped fixing frame is fixedly connected with the supporting rod through screws, and the horizontal end of the L-shaped fixing frame The end is fixedly connected with the base by screws.

As a further solution of the present invention: the impact position adjustment device includes an angle adjustment mechanism rotatably arranged on the support rod, and a telescopic machine horizontally fixed on the angle adjustment mechanism through a connecting block.

As a further solution of the present invention: the angle adjustment mechanism includes an angle adjuster, a transmission rod and a rotating motor, the angle adjuster is arranged on the support rod through a rotating bearing, and an annular gear is arranged at the bottom thereof, so The rotating motor is fixed on the support rod, and the two ends of the transmission rod are respectively connected with the gear and the rotating motor through gear transmission.

As a further solution of the present invention: the impact device includes a vertically arranged track bracket and a slider slidingly fitted with the track bracket, an electromagnet is arranged at the center of the lower end surface of the slider, and the upper end surface passes through the The seat is connected with the traction device, the upper end of the drop hammer is provided with an iron block which is adsorbed to the electromagnet, and the lower end is provided with a conical impact head.

As a further solution of the present invention: the traction device includes a traction rope, two pulleys fixed on the top frame through a bracket, and a traction motor fixed on the base, and the output shaft of the traction motor is provided with A wire reel, one end of the traction rope is connected to the wire reel, and the other end is fixedly connected to the slider base after passing around two pulleys in turn.

As a further solution of the present invention: two positioning lights with intersecting rays are arranged on both sides of the lower end of the track bracket, and the intersection point illuminated by the two positioning lights is the impact point of the falling hammer.

As a further solution of the present invention: the steering knuckle clamp device includes a first steering knuckle clamp assembly, and the first steering knuckle clamp assembly includes a first clamp base plate, a shock absorber mounting point fixing frame, a rectangular plate, a first Wheel hub, folding bracket, steering knuckle arm mounting point fixing bracket, tapered stud, steel sleeve, the first clamp bottom plate is fixed on the impact table by bolts, the shock absorber mounting point fixing frame, folding The folding bracket and the steering knuckle arm mounting point fixing bracket are fixed on the first fixture base plate by bolts, and the folding bracket and the steering knuckle arm mounting point fixing bracket are all provided with mounting holes, and the mounting holes pass through the connected straps. The taper stud and the steel sleeve are fixedly connected with the arm of the steering knuckle; the rectangular plate is fixedly connected with the steering knuckle through bolts and the first hub.

As a further solution of the present invention: the steering knuckle clamp device includes a second steering knuckle clamp assembly, the second steering knuckle clamp assembly includes a second clamp base plate, a second hub, and a disc, and the second clamp The bottom plate is fixed on the impact table by bolts, and the steering knuckle, the disc, and the second hub are fixed on the second fixture bottom plate sequentially by bolts from top to bottom.

Compared with the prior art, the beneficial effects of the present invention are: the automobile steering knuckle impact test device of the present invention has simple structure, convenient operation, strong equipment flexibility, accurate positioning of impact points, and improved reliability of test results.

Description of drawings

FIG. 1 is a schematic structural view of an automobile steering knuckle impact test device according to Embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of a steering knuckle clamp assembly according to Embodiment 1 of the present invention.

Fig. 3 is a schematic diagram of the bottom plate and related fixtures of the steering knuckle clamp assembly according to Embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of the connection method of the mounting hole of the lower control arm according to Embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of a rectangular plate according to Embodiment 1 of the present invention.

Fig. 6 is a schematic structural diagram of a steering knuckle clamp assembly according to Embodiment 2 of the present invention.

Fig. 7 is an exploded view of assembly of the steering knuckle clamp assembly according to the second embodiment of the present invention.

As shown in the figure: base 1, traction motor 2, traction rope 3, top frame 4, pulley 5, bracket 6, telescopic machine 7, connecting block 8, angle regulator 9, gear 10, transmission rod 11, rotating motor 12, L-shaped fixed frame 13, screw 14, impact table 15, positioning lamp 16, rail bracket 17, impact head 18, drop hammer 19, iron block 20, electromagnet 21, slider 22, slider base 23, support rod 24 , winding reel 25, first steering knuckle clamp assembly 26, first clamp base plate 261, shock absorber mounting point fixing frame 262, rectangular plate 263, first wheel hub 264, folding bracket 265, steering knuckle arm mounting point fixing Bracket 266, steering knuckle 267, tapered stud 268, steel sleeve 269, second steering knuckle clamp assembly 27, second clamp base plate 271, second hub 272, disc 273.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

As shown in Figures 1 to 5, an automobile steering knuckle impact test device includes a base 1, a traction motor 2, a traction rope 3, a top frame 4, a pulley 5, a bracket 6, a telescopic machine 7, a connecting block 8, an angle adjustment Device 9, gear 10, transmission rod 11, rotating motor 12, L-shaped fixed frame 13, screw 14, impact table 15, positioning lamp 16, track bracket 17, impact head 18, drop hammer 19, iron block 20, electromagnet 21 , slider 22, slider base 23, support rod 24 and winding roulette 25, the support rod 24 is vertically fixedly installed on the base 1, and the two ends of the intersection of the support rod 24 and the base 1 are fixed in an L shape Frame 13, the tight straight end of L-shaped fixed frame 13 is connected with support bar 24 with screw 14, and the horizontal end of L-shaped fixed frame 13 is connected with base 1 with screw 14, and the top frame 4 of support bar 24 is fixedly installed, and angle adjustment The device 9 utilizes a rotating bearing to be fixedly installed on the support rod 24, and the rotating bearing makes the angle adjuster 9 rotate around the support rod 24, and the gear 10 is fixedly installed on the bottom of the angle adjuster 9 with bolts, and the transmission rod 11 has gears at both ends. The gear at the top of the transmission rod 11 meshes with the gear 10, the gear at the bottom of the transmission rod 11 meshes with the rotating motor 12, the rotating motor 12 is fixedly installed on the side wall of the support rod 24, the side wall of the angle adjuster 9 is fixedly installed with the connecting block 8, and connected The other end of block 8 is detachably installed telescoping machine 7, and described track support 17 is removably installed on the telescoping link of telescoping machine 7, drives angle regulator 9 to rotate by rotating motor 12, and described angle regulator 9 and telescoping machine 7 Cooperate to form a large-scale adjustable fan-shaped impact area, increase the flexibility of equipment use, two pulleys 5 are fixedly installed on the bottom of the top frame 4, and a traction motor 2 with a winding reel 25 is fixedly installed on the base 1 One end of the soft traction rope 3 is connected to the winding reel 25, and the other end is connected to the slider base 23 around the pulley 5, the slider base 23 is fixed on the top of the slider 22, and the slider 22 is slidably installed On the track support 17, the electromagnet 21 is fixedly installed below the slide block 22, the drop weight 19 is slidably installed on the track support 17, and the iron block 20 is installed on the top of the drop weight 19, and the iron block 20 and the electromagnet 21 are in the opposite position. Below the drop hammer 19 is a conical impact head 18. An impact table 15 with a fixing device is installed on the base 1 below the impact head 18. The first steering knuckle clamp assembly 26 is installed on the impact table 15. The two sides of the track bracket 17 are installed and positioned. Light 16, the position of the intersection point illuminated by the two positioning lights 16 is the impact point of the drop hammer 19. The precise positioning of the impact point can be realized through the positioning light 16, and the whereabouts and contact of the drop hammer 19 can be realized by turning on and off the electromagnet 21. Lift reset.

Install the first steering knuckle clamp assembly 26 on the impact platform 15, the clamp base plate 261 is fixed on the impact platform 15, and the lower control arm installation point of the steering knuckle 267 is fixed on the clamp base plate A261 with a folding bracket 265, wherein the mounting hole is equipped with Steel sleeve 269, and connect folded bracket 265 and steering knuckle 267 with tapered stud 268, for replacing the connection of the ball joint pair in reality, steering knuckle arm installation hole is also to use the same installation method, described rectangular plate 263 Fixedly connected with the steering knuckle 267 by bolts and the first wheel hub 264, the rectangular plate 263 is installed on the wheel hub 264, and the impact point is on a small square on the bottom edge of the rectangular plate 263, and the length from the bottom edge of the rectangular plate 263 to the center of the wheel hub is corresponding The car's wheel radius, used to simulate impacting the wheel's edge.

The working principle of this embodiment is: when carrying out the automobile steering knuckle impact test, first the automobile steering knuckle 267 is fixed on the first steering knuckle clamp assembly 26, so that the impact point is adjusted to a small square on the bottom edge of the rectangular plate 263, and the It is used to simulate the force of the steering knuckle caused by the impact of the car on the curb, so as to detect the quality of the steering knuckle of the car. The position of the impact point is adjusted by controlling the rotating motor 12 and the telescopic machine 7 through the switch. The iron block 20 controls the traction motor 2 to pull the drop hammer 19 to the test height, and then the electromagnet 21 is powered off, the drop hammer 19 falls and hits the object under inspection, and the positioning light 16 can accurately locate the impact point.

Embodiment two

To carry out the impact test on the steering knuckle, it is usually necessary to check the impact resistance of the steering knuckle arm, as shown in Figure 6 and Figure 7, the difference between this embodiment and Embodiment 1 is that the first steering knuckle clamp assembly 26 is replaced by the first Two steering knuckle clamp assemblies 27, the second steering knuckle clamp assembly 27 includes a second clamp base plate 271, a second hub 272, and a disc 273, and the second clamp base plate 271 is fixed on the impact table 15 by four bolts Above, the steering knuckle 267, the disk 273, and the second hub 272 are fixed on the second clamp bottom plate 271 sequentially by six bolts from top to bottom. The disc 273 is used to replace the thickness of the fender, which is convenient for simulating the actual assembly relationship of each part, and the impact point is adjusted to the position of the mounting hole of the steering knuckle arm.

Although the present invention has been described in detail with reference to the foregoing two embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (10)

1. the support frame on a kind of spindle impact test apparatus, including base (1), the fixed installation base (1), its It is characterised by：Impact position adjusting means is provided with described support frame, the impact position adjusting means end is detachable Ground is vertically fixed percussion mechanism, the shock testing machine (15) being provided with below the percussion mechanism on firm banking (1), described Shock testing machine is provided with knuckle grip device on (15).

2. spindle impact test apparatus according to claim 1, it is characterised in that：Described support frame includes perpendicular The straight support bar (24) being fixed on base (1), the upper frame (4) for being horizontally fixed on the support bar (24) top.

3. spindle impact test apparatus according to claim 2, it is characterised in that：Described support bar (24) with The intersection of base (1) is provided with L-shaped fixed mount (13), and the vertical end of the L-shaped fixed mount (13) passes through screw (14) and branch Strut (24) is fixedly connected, and the horizontal ends of the L-shaped fixed mount (13) are fixedly connected by screw (14) with base (1).

4. spindle impact test apparatus according to claim 2, it is characterised in that：The impact position regulation dress Put the angle adjusting mechanism, horizontal fixed by contiguous block (8) including being arranged on by rolling bearing on the support bar (24) Telescopic machine (7) on the angle adjusting mechanism.

5. spindle impact test apparatus according to claim 2, it is characterised in that：Described angle adjusting mechanism The support is rotatably arranged at including angle demodulator, drive link (11) and electric rotating machine (12), described angle demodulator On bar (24), its bottom is provided with the gear (10) of annular, and the electric rotating machine (12) is fixed on the support bar (24), institute The both ends for stating drive link (11) are connected by gear drive with gear (10) and electric rotating machine (12) respectively.

6. spindle impact test apparatus according to claim 1, it is characterised in that：Described percussion mechanism includes The track support (17) that is vertically arranged, the sliding block (22) being slidably matched with the track support (17), under the sliding block (22) End face has been centrally located electromagnet (21), and upper surface connects draw-gear, the upper of (19) of dropping hammer by sliding block pedestal (23) End is provided with the iron block (20) mutually adsorbed with the electromagnet (21), and lower end is provided with conical impact head (18).

7. spindle impact test apparatus according to claim 2, it is characterised in that：Described draw-gear includes Pull rope (3), two pulleys (5) being fixed on by support (6) on the upper frame (4), it is fixed on leading on the base (1) Draw motor (2), coiling wheel disc (25), one end connection of the pull rope (3) are provided with the output shaft of the traction electric machine (2) Coiling wheel disc (25), the other end are fixedly connected with sliding block pedestal (23) afterwards around two pulleys (5) successively.

8. spindle impact test apparatus according to claim 6, it is characterised in that：The track support (17) Lower end both sides are provided with the positioning lamp (16) of two ray intersections, and the position of intersecting point of two positioning lamp (16) irradiations is to drop hammer (19) shock point.

9. spindle impact test apparatus according to claim 1, it is characterised in that：Described knuckle fixture dress Put includes the first clamp bottom board including the first knuckle clamp assembly (26), the first described knuckle clamp assembly (26) (261), shock absorber mount point fixed mount (262), rectangular slab (263), first wheel (264), folding shape support (265), steering Joint arm mount point fixed support (266), band conical surface stud (268), steel bushing (269), described the first clamp bottom board (261) pass through It is bolted on shock testing machine (15), described shock absorber mount point fixed mount (262), folding shape support (265), knuckle arm peace Decorate fixed support (266) to be bolted on the first clamp bottom board (261), the folding shape support (265), knuckle arm Be provided with mounting hole on mount point fixed support (266), described mounting hole by the band conical surface stud (268) that is connected and Steel bushing (269) is fixedly connected with the arm of knuckle (267)；Described rectangular slab (263) passes through bolt and first wheel (264) It is fixedly connected with knuckle (267).

10. spindle impact test apparatus according to claim 1, it is characterised in that：Described knuckle fixture Device includes the second knuckle clamp assembly (27), and the second described knuckle clamp assembly (27) includes the second clamp bottom board (271), the second wheel hub (272), disk (273), described the second clamp bottom board (271) are bolted on shock testing machine (15) On, described knuckle (267), disk (273), the second wheel hub (272) are from top to bottom sequentially fixed at the second folder by bolt Have on bottom plate (271).